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7754 lines
231 KiB
7754 lines
231 KiB
// |
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// Header-only tiny glTF 2.0 loader and serializer. |
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// |
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// |
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// The MIT License (MIT) |
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// |
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// Copyright (c) 2015 - Present Syoyo Fujita, Aurélien Chatelain and many |
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// contributors. |
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// |
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// Permission is hereby granted, free of charge, to any person obtaining a copy |
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// of this software and associated documentation files (the "Software"), to deal |
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// in the Software without restriction, including without limitation the rights |
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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// copies of the Software, and to permit persons to whom the Software is |
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// furnished to do so, subject to the following conditions: |
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// |
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// The above copyright notice and this permission notice shall be included in |
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// all copies or substantial portions of the Software. |
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// |
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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// THE SOFTWARE. |
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// Version: |
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// - v2.5.0 Add SetPreserveImageChannels() option to load image data as is. |
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// - v2.4.3 Fix null object output when when material has all default |
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// parameters. |
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// - v2.4.2 Decode percent-encoded URI. |
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// - v2.4.1 Fix some glTF object class does not have `extensions` and/or |
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// `extras` property. |
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// - v2.4.0 Experimental RapidJSON and C++14 support(Thanks to @jrkoone). |
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// - v2.3.1 Set default value of minFilter and magFilter in Sampler to -1. |
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// - v2.3.0 Modified Material representation according to glTF 2.0 schema |
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// (and introduced TextureInfo class) |
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// Change the behavior of `Value::IsNumber`. It return true either the |
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// value is int or real. |
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// - v2.2.0 Add loading 16bit PNG support. Add Sparse accessor support(Thanks |
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// to @Ybalrid) |
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// - v2.1.0 Add draco compression. |
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// - v2.0.1 Add comparison feature(Thanks to @Selmar). |
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// - v2.0.0 glTF 2.0!. |
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// |
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// Tiny glTF loader is using following third party libraries: |
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// |
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// - jsonhpp: C++ JSON library. |
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// - base64: base64 decode/encode library. |
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// - stb_image: Image loading library. |
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// |
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#ifndef TINY_GLTF_H_ |
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#define TINY_GLTF_H_ |
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#include <array> |
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#include <cassert> |
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#include <cmath> // std::fabs |
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#include <cstdint> |
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#include <cstdlib> |
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#include <cstring> |
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#include <limits> |
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#include <map> |
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#include <string> |
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#include <vector> |
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#ifndef TINYGLTF_USE_CPP14 |
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#include <functional> |
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#endif |
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#ifdef __ANDROID__ |
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#ifdef TINYGLTF_ANDROID_LOAD_FROM_ASSETS |
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#include <android/asset_manager.h> |
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#endif |
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#endif |
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#ifdef __GNUC__ |
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#if (__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ <= 8)) |
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#define TINYGLTF_NOEXCEPT |
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#else |
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#define TINYGLTF_NOEXCEPT noexcept |
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#endif |
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#else |
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#define TINYGLTF_NOEXCEPT noexcept |
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#endif |
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#define DEFAULT_METHODS(x) \ |
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~x() = default; \ |
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x(const x &) = default; \ |
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x(x &&) TINYGLTF_NOEXCEPT = default; \ |
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x &operator=(const x &) = default; \ |
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x &operator=(x &&) TINYGLTF_NOEXCEPT = default; |
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namespace tinygltf { |
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#define TINYGLTF_MODE_POINTS (0) |
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#define TINYGLTF_MODE_LINE (1) |
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#define TINYGLTF_MODE_LINE_LOOP (2) |
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#define TINYGLTF_MODE_LINE_STRIP (3) |
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#define TINYGLTF_MODE_TRIANGLES (4) |
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#define TINYGLTF_MODE_TRIANGLE_STRIP (5) |
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#define TINYGLTF_MODE_TRIANGLE_FAN (6) |
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#define TINYGLTF_COMPONENT_TYPE_BYTE (5120) |
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#define TINYGLTF_COMPONENT_TYPE_UNSIGNED_BYTE (5121) |
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#define TINYGLTF_COMPONENT_TYPE_SHORT (5122) |
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#define TINYGLTF_COMPONENT_TYPE_UNSIGNED_SHORT (5123) |
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#define TINYGLTF_COMPONENT_TYPE_INT (5124) |
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#define TINYGLTF_COMPONENT_TYPE_UNSIGNED_INT (5125) |
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#define TINYGLTF_COMPONENT_TYPE_FLOAT (5126) |
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#define TINYGLTF_COMPONENT_TYPE_DOUBLE (5130) |
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#define TINYGLTF_TEXTURE_FILTER_NEAREST (9728) |
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#define TINYGLTF_TEXTURE_FILTER_LINEAR (9729) |
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#define TINYGLTF_TEXTURE_FILTER_NEAREST_MIPMAP_NEAREST (9984) |
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#define TINYGLTF_TEXTURE_FILTER_LINEAR_MIPMAP_NEAREST (9985) |
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#define TINYGLTF_TEXTURE_FILTER_NEAREST_MIPMAP_LINEAR (9986) |
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#define TINYGLTF_TEXTURE_FILTER_LINEAR_MIPMAP_LINEAR (9987) |
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#define TINYGLTF_TEXTURE_WRAP_REPEAT (10497) |
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#define TINYGLTF_TEXTURE_WRAP_CLAMP_TO_EDGE (33071) |
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#define TINYGLTF_TEXTURE_WRAP_MIRRORED_REPEAT (33648) |
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// Redeclarations of the above for technique.parameters. |
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#define TINYGLTF_PARAMETER_TYPE_BYTE (5120) |
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#define TINYGLTF_PARAMETER_TYPE_UNSIGNED_BYTE (5121) |
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#define TINYGLTF_PARAMETER_TYPE_SHORT (5122) |
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#define TINYGLTF_PARAMETER_TYPE_UNSIGNED_SHORT (5123) |
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#define TINYGLTF_PARAMETER_TYPE_INT (5124) |
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#define TINYGLTF_PARAMETER_TYPE_UNSIGNED_INT (5125) |
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#define TINYGLTF_PARAMETER_TYPE_FLOAT (5126) |
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#define TINYGLTF_PARAMETER_TYPE_FLOAT_VEC2 (35664) |
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#define TINYGLTF_PARAMETER_TYPE_FLOAT_VEC3 (35665) |
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#define TINYGLTF_PARAMETER_TYPE_FLOAT_VEC4 (35666) |
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#define TINYGLTF_PARAMETER_TYPE_INT_VEC2 (35667) |
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#define TINYGLTF_PARAMETER_TYPE_INT_VEC3 (35668) |
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#define TINYGLTF_PARAMETER_TYPE_INT_VEC4 (35669) |
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#define TINYGLTF_PARAMETER_TYPE_BOOL (35670) |
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#define TINYGLTF_PARAMETER_TYPE_BOOL_VEC2 (35671) |
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#define TINYGLTF_PARAMETER_TYPE_BOOL_VEC3 (35672) |
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#define TINYGLTF_PARAMETER_TYPE_BOOL_VEC4 (35673) |
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#define TINYGLTF_PARAMETER_TYPE_FLOAT_MAT2 (35674) |
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#define TINYGLTF_PARAMETER_TYPE_FLOAT_MAT3 (35675) |
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#define TINYGLTF_PARAMETER_TYPE_FLOAT_MAT4 (35676) |
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#define TINYGLTF_PARAMETER_TYPE_SAMPLER_2D (35678) |
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// End parameter types |
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#define TINYGLTF_TYPE_VEC2 (2) |
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#define TINYGLTF_TYPE_VEC3 (3) |
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#define TINYGLTF_TYPE_VEC4 (4) |
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#define TINYGLTF_TYPE_MAT2 (32 + 2) |
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#define TINYGLTF_TYPE_MAT3 (32 + 3) |
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#define TINYGLTF_TYPE_MAT4 (32 + 4) |
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#define TINYGLTF_TYPE_SCALAR (64 + 1) |
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#define TINYGLTF_TYPE_VECTOR (64 + 4) |
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#define TINYGLTF_TYPE_MATRIX (64 + 16) |
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#define TINYGLTF_IMAGE_FORMAT_JPEG (0) |
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#define TINYGLTF_IMAGE_FORMAT_PNG (1) |
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#define TINYGLTF_IMAGE_FORMAT_BMP (2) |
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#define TINYGLTF_IMAGE_FORMAT_GIF (3) |
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#define TINYGLTF_TEXTURE_FORMAT_ALPHA (6406) |
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#define TINYGLTF_TEXTURE_FORMAT_RGB (6407) |
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#define TINYGLTF_TEXTURE_FORMAT_RGBA (6408) |
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#define TINYGLTF_TEXTURE_FORMAT_LUMINANCE (6409) |
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#define TINYGLTF_TEXTURE_FORMAT_LUMINANCE_ALPHA (6410) |
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#define TINYGLTF_TEXTURE_TARGET_TEXTURE2D (3553) |
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#define TINYGLTF_TEXTURE_TYPE_UNSIGNED_BYTE (5121) |
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#define TINYGLTF_TARGET_ARRAY_BUFFER (34962) |
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#define TINYGLTF_TARGET_ELEMENT_ARRAY_BUFFER (34963) |
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#define TINYGLTF_SHADER_TYPE_VERTEX_SHADER (35633) |
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#define TINYGLTF_SHADER_TYPE_FRAGMENT_SHADER (35632) |
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#define TINYGLTF_DOUBLE_EPS (1.e-12) |
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#define TINYGLTF_DOUBLE_EQUAL(a, b) (std::fabs((b) - (a)) < TINYGLTF_DOUBLE_EPS) |
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#ifdef __ANDROID__ |
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#ifdef TINYGLTF_ANDROID_LOAD_FROM_ASSETS |
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AAssetManager *asset_manager = nullptr; |
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#endif |
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#endif |
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typedef enum { |
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NULL_TYPE = 0, |
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REAL_TYPE = 1, |
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INT_TYPE = 2, |
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BOOL_TYPE = 3, |
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STRING_TYPE = 4, |
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ARRAY_TYPE = 5, |
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BINARY_TYPE = 6, |
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OBJECT_TYPE = 7 |
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} Type; |
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static inline int32_t GetComponentSizeInBytes(uint32_t componentType) { |
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if (componentType == TINYGLTF_COMPONENT_TYPE_BYTE) { |
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return 1; |
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} else if (componentType == TINYGLTF_COMPONENT_TYPE_UNSIGNED_BYTE) { |
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return 1; |
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} else if (componentType == TINYGLTF_COMPONENT_TYPE_SHORT) { |
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return 2; |
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} else if (componentType == TINYGLTF_COMPONENT_TYPE_UNSIGNED_SHORT) { |
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return 2; |
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} else if (componentType == TINYGLTF_COMPONENT_TYPE_INT) { |
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return 4; |
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} else if (componentType == TINYGLTF_COMPONENT_TYPE_UNSIGNED_INT) { |
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return 4; |
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} else if (componentType == TINYGLTF_COMPONENT_TYPE_FLOAT) { |
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return 4; |
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} else if (componentType == TINYGLTF_COMPONENT_TYPE_DOUBLE) { |
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return 8; |
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} else { |
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// Unknown componenty type |
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return -1; |
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} |
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} |
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static inline int32_t GetNumComponentsInType(uint32_t ty) { |
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if (ty == TINYGLTF_TYPE_SCALAR) { |
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return 1; |
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} else if (ty == TINYGLTF_TYPE_VEC2) { |
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return 2; |
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} else if (ty == TINYGLTF_TYPE_VEC3) { |
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return 3; |
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} else if (ty == TINYGLTF_TYPE_VEC4) { |
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return 4; |
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} else if (ty == TINYGLTF_TYPE_MAT2) { |
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return 4; |
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} else if (ty == TINYGLTF_TYPE_MAT3) { |
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return 9; |
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} else if (ty == TINYGLTF_TYPE_MAT4) { |
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return 16; |
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} else { |
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// Unknown componenty type |
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return -1; |
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} |
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} |
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// TODO(syoyo): Move these functions to TinyGLTF class |
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bool IsDataURI(const std::string &in); |
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bool DecodeDataURI(std::vector<unsigned char> *out, std::string &mime_type, |
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const std::string &in, size_t reqBytes, bool checkSize); |
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#ifdef __clang__ |
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#pragma clang diagnostic push |
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// Suppress warning for : static Value null_value |
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// https://stackoverflow.com/questions/15708411/how-to-deal-with-global-constructor-warning-in-clang |
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#pragma clang diagnostic ignored "-Wexit-time-destructors" |
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#pragma clang diagnostic ignored "-Wpadded" |
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#endif |
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// Simple class to represent JSON object |
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class Value { |
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public: |
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typedef std::vector<Value> Array; |
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typedef std::map<std::string, Value> Object; |
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Value() |
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: type_(NULL_TYPE), |
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int_value_(0), |
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real_value_(0.0), |
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boolean_value_(false) {} |
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explicit Value(bool b) : type_(BOOL_TYPE) { boolean_value_ = b; } |
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explicit Value(int i) : type_(INT_TYPE) { |
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int_value_ = i; |
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real_value_ = i; |
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} |
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explicit Value(double n) : type_(REAL_TYPE) { real_value_ = n; } |
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explicit Value(const std::string &s) : type_(STRING_TYPE) { |
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string_value_ = s; |
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} |
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explicit Value(std::string &&s) |
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: type_(STRING_TYPE), string_value_(std::move(s)) {} |
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explicit Value(const unsigned char *p, size_t n) : type_(BINARY_TYPE) { |
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binary_value_.resize(n); |
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memcpy(binary_value_.data(), p, n); |
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} |
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explicit Value(std::vector<unsigned char> &&v) noexcept |
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: type_(BINARY_TYPE), |
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binary_value_(std::move(v)) {} |
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explicit Value(const Array &a) : type_(ARRAY_TYPE) { array_value_ = a; } |
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explicit Value(Array &&a) noexcept : type_(ARRAY_TYPE), |
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array_value_(std::move(a)) {} |
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explicit Value(const Object &o) : type_(OBJECT_TYPE) { object_value_ = o; } |
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explicit Value(Object &&o) noexcept : type_(OBJECT_TYPE), |
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object_value_(std::move(o)) {} |
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DEFAULT_METHODS(Value) |
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char Type() const { return static_cast<char>(type_); } |
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bool IsBool() const { return (type_ == BOOL_TYPE); } |
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bool IsInt() const { return (type_ == INT_TYPE); } |
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bool IsNumber() const { return (type_ == REAL_TYPE) || (type_ == INT_TYPE); } |
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bool IsReal() const { return (type_ == REAL_TYPE); } |
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bool IsString() const { return (type_ == STRING_TYPE); } |
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bool IsBinary() const { return (type_ == BINARY_TYPE); } |
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bool IsArray() const { return (type_ == ARRAY_TYPE); } |
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bool IsObject() const { return (type_ == OBJECT_TYPE); } |
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// Use this function if you want to have number value as double. |
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double GetNumberAsDouble() const { |
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if (type_ == INT_TYPE) { |
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return double(int_value_); |
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} else { |
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return real_value_; |
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} |
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} |
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// Use this function if you want to have number value as int. |
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// TODO(syoyo): Support int value larger than 32 bits |
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int GetNumberAsInt() const { |
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if (type_ == REAL_TYPE) { |
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return int(real_value_); |
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} else { |
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return int_value_; |
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} |
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} |
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// Accessor |
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template <typename T> |
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const T &Get() const; |
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template <typename T> |
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T &Get(); |
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// Lookup value from an array |
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const Value &Get(int idx) const { |
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static Value null_value; |
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assert(IsArray()); |
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assert(idx >= 0); |
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return (static_cast<size_t>(idx) < array_value_.size()) |
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? array_value_[static_cast<size_t>(idx)] |
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: null_value; |
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} |
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// Lookup value from a key-value pair |
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const Value &Get(const std::string &key) const { |
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static Value null_value; |
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assert(IsObject()); |
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Object::const_iterator it = object_value_.find(key); |
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return (it != object_value_.end()) ? it->second : null_value; |
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} |
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size_t ArrayLen() const { |
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if (!IsArray()) return 0; |
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return array_value_.size(); |
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} |
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// Valid only for object type. |
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bool Has(const std::string &key) const { |
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if (!IsObject()) return false; |
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Object::const_iterator it = object_value_.find(key); |
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return (it != object_value_.end()) ? true : false; |
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} |
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// List keys |
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std::vector<std::string> Keys() const { |
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std::vector<std::string> keys; |
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if (!IsObject()) return keys; // empty |
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for (Object::const_iterator it = object_value_.begin(); |
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it != object_value_.end(); ++it) { |
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keys.push_back(it->first); |
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} |
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return keys; |
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} |
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size_t Size() const { return (IsArray() ? ArrayLen() : Keys().size()); } |
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bool operator==(const tinygltf::Value &other) const; |
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protected: |
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int type_ = NULL_TYPE; |
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int int_value_ = 0; |
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double real_value_ = 0.0; |
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std::string string_value_; |
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std::vector<unsigned char> binary_value_; |
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Array array_value_; |
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Object object_value_; |
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bool boolean_value_ = false; |
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}; |
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#ifdef __clang__ |
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#pragma clang diagnostic pop |
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#endif |
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#define TINYGLTF_VALUE_GET(ctype, var) \ |
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template <> \ |
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inline const ctype &Value::Get<ctype>() const { \ |
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return var; \ |
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} \ |
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template <> \ |
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inline ctype &Value::Get<ctype>() { \ |
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return var; \ |
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} |
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TINYGLTF_VALUE_GET(bool, boolean_value_) |
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TINYGLTF_VALUE_GET(double, real_value_) |
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TINYGLTF_VALUE_GET(int, int_value_) |
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TINYGLTF_VALUE_GET(std::string, string_value_) |
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TINYGLTF_VALUE_GET(std::vector<unsigned char>, binary_value_) |
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TINYGLTF_VALUE_GET(Value::Array, array_value_) |
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TINYGLTF_VALUE_GET(Value::Object, object_value_) |
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#undef TINYGLTF_VALUE_GET |
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#ifdef __clang__ |
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#pragma clang diagnostic push |
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#pragma clang diagnostic ignored "-Wc++98-compat" |
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#pragma clang diagnostic ignored "-Wpadded" |
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#endif |
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/// Aggregate object for representing a color |
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using ColorValue = std::array<double, 4>; |
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// === legacy interface ==== |
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// TODO(syoyo): Deprecate `Parameter` class. |
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struct Parameter { |
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bool bool_value = false; |
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bool has_number_value = false; |
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std::string string_value; |
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std::vector<double> number_array; |
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std::map<std::string, double> json_double_value; |
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double number_value = 0.0; |
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// context sensitive methods. depending the type of the Parameter you are |
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// accessing, these are either valid or not |
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// If this parameter represent a texture map in a material, will return the |
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// texture index |
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/// Return the index of a texture if this Parameter is a texture map. |
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/// Returned value is only valid if the parameter represent a texture from a |
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/// material |
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int TextureIndex() const { |
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const auto it = json_double_value.find("index"); |
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if (it != std::end(json_double_value)) { |
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return int(it->second); |
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} |
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return -1; |
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} |
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/// Return the index of a texture coordinate set if this Parameter is a |
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/// texture map. Returned value is only valid if the parameter represent a |
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/// texture from a material |
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int TextureTexCoord() const { |
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const auto it = json_double_value.find("texCoord"); |
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if (it != std::end(json_double_value)) { |
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return int(it->second); |
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} |
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// As per the spec, if texCoord is omitted, this parameter is 0 |
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return 0; |
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} |
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/// Return the scale of a texture if this Parameter is a normal texture map. |
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/// Returned value is only valid if the parameter represent a normal texture |
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/// from a material |
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double TextureScale() const { |
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const auto it = json_double_value.find("scale"); |
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if (it != std::end(json_double_value)) { |
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return it->second; |
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} |
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// As per the spec, if scale is omitted, this parameter is 1 |
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return 1; |
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} |
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/// Return the strength of a texture if this Parameter is a an occlusion map. |
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/// Returned value is only valid if the parameter represent an occlusion map |
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/// from a material |
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double TextureStrength() const { |
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const auto it = json_double_value.find("strength"); |
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if (it != std::end(json_double_value)) { |
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return it->second; |
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} |
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// As per the spec, if strenghth is omitted, this parameter is 1 |
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return 1; |
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} |
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/// Material factor, like the roughness or metalness of a material |
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/// Returned value is only valid if the parameter represent a texture from a |
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/// material |
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double Factor() const { return number_value; } |
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/// Return the color of a material |
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/// Returned value is only valid if the parameter represent a texture from a |
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/// material |
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ColorValue ColorFactor() const { |
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return { |
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{// this aggregate initialize the std::array object, and uses C++11 RVO. |
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number_array[0], number_array[1], number_array[2], |
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(number_array.size() > 3 ? number_array[3] : 1.0)}}; |
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} |
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Parameter() = default; |
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DEFAULT_METHODS(Parameter) |
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bool operator==(const Parameter &) const; |
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}; |
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#ifdef __clang__ |
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#pragma clang diagnostic pop |
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#endif |
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#ifdef __clang__ |
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#pragma clang diagnostic push |
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#pragma clang diagnostic ignored "-Wpadded" |
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#endif |
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typedef std::map<std::string, Parameter> ParameterMap; |
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typedef std::map<std::string, Value> ExtensionMap; |
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struct AnimationChannel { |
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int sampler; // required |
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int target_node; // required (index of the node to target) |
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std::string target_path; // required in ["translation", "rotation", "scale", |
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// "weights"] |
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Value extras; |
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ExtensionMap extensions; |
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ExtensionMap target_extensions; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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std::string target_extensions_json_string; |
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AnimationChannel() : sampler(-1), target_node(-1) {} |
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DEFAULT_METHODS(AnimationChannel) |
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bool operator==(const AnimationChannel &) const; |
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}; |
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struct AnimationSampler { |
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int input; // required |
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int output; // required |
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std::string interpolation; // "LINEAR", "STEP","CUBICSPLINE" or user defined |
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// string. default "LINEAR" |
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Value extras; |
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ExtensionMap extensions; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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AnimationSampler() : input(-1), output(-1), interpolation("LINEAR") {} |
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DEFAULT_METHODS(AnimationSampler) |
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bool operator==(const AnimationSampler &) const; |
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}; |
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struct Animation { |
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std::string name; |
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std::vector<AnimationChannel> channels; |
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std::vector<AnimationSampler> samplers; |
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Value extras; |
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ExtensionMap extensions; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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Animation() = default; |
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DEFAULT_METHODS(Animation) |
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bool operator==(const Animation &) const; |
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}; |
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struct Skin { |
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std::string name; |
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int inverseBindMatrices; // required here but not in the spec |
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int skeleton; // The index of the node used as a skeleton root |
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std::vector<int> joints; // Indices of skeleton nodes |
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Value extras; |
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ExtensionMap extensions; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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Skin() { |
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inverseBindMatrices = -1; |
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skeleton = -1; |
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} |
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DEFAULT_METHODS(Skin) |
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bool operator==(const Skin &) const; |
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}; |
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struct Sampler { |
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std::string name; |
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// glTF 2.0 spec does not define default value for `minFilter` and |
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// `magFilter`. Set -1 in TinyGLTF(issue #186) |
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int minFilter = |
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-1; // optional. -1 = no filter defined. ["NEAREST", "LINEAR", |
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// "NEAREST_MIPMAP_LINEAR", "LINEAR_MIPMAP_NEAREST", |
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// "NEAREST_MIPMAP_LINEAR", "LINEAR_MIPMAP_LINEAR"] |
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int magFilter = |
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-1; // optional. -1 = no filter defined. ["NEAREST", "LINEAR"] |
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int wrapS = |
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TINYGLTF_TEXTURE_WRAP_REPEAT; // ["CLAMP_TO_EDGE", "MIRRORED_REPEAT", |
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// "REPEAT"], default "REPEAT" |
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int wrapT = |
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TINYGLTF_TEXTURE_WRAP_REPEAT; // ["CLAMP_TO_EDGE", "MIRRORED_REPEAT", |
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// "REPEAT"], default "REPEAT" |
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//int wrapR = TINYGLTF_TEXTURE_WRAP_REPEAT; // TinyGLTF extension. currently not used. |
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Value extras; |
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ExtensionMap extensions; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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Sampler() |
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: minFilter(-1), |
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magFilter(-1), |
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wrapS(TINYGLTF_TEXTURE_WRAP_REPEAT), |
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wrapT(TINYGLTF_TEXTURE_WRAP_REPEAT) {} |
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DEFAULT_METHODS(Sampler) |
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bool operator==(const Sampler &) const; |
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}; |
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struct Image { |
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std::string name; |
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int width; |
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int height; |
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int component; |
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int bits; // bit depth per channel. 8(byte), 16 or 32. |
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int pixel_type; // pixel type(TINYGLTF_COMPONENT_TYPE_***). usually |
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// UBYTE(bits = 8) or USHORT(bits = 16) |
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std::vector<unsigned char> image; |
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int bufferView; // (required if no uri) |
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std::string mimeType; // (required if no uri) ["image/jpeg", "image/png", |
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// "image/bmp", "image/gif"] |
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std::string uri; // (required if no mimeType) uri is not decoded(e.g. |
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// whitespace may be represented as %20) |
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Value extras; |
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ExtensionMap extensions; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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// When this flag is true, data is stored to `image` in as-is format(e.g. jpeg |
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// compressed for "image/jpeg" mime) This feature is good if you use custom |
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// image loader function. (e.g. delayed decoding of images for faster glTF |
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// parsing) Default parser for Image does not provide as-is loading feature at |
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// the moment. (You can manipulate this by providing your own LoadImageData |
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// function) |
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bool as_is; |
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Image() : as_is(false) { |
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bufferView = -1; |
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width = -1; |
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height = -1; |
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component = -1; |
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bits = -1; |
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pixel_type = -1; |
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} |
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DEFAULT_METHODS(Image) |
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bool operator==(const Image &) const; |
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}; |
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struct Texture { |
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std::string name; |
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int sampler; |
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int source; |
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Value extras; |
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ExtensionMap extensions; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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Texture() : sampler(-1), source(-1) {} |
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DEFAULT_METHODS(Texture) |
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bool operator==(const Texture &) const; |
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}; |
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struct TextureInfo { |
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int index = -1; // required. |
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int texCoord; // The set index of texture's TEXCOORD attribute used for |
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// texture coordinate mapping. |
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Value extras; |
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ExtensionMap extensions; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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TextureInfo() : index(-1), texCoord(0) {} |
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DEFAULT_METHODS(TextureInfo) |
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bool operator==(const TextureInfo &) const; |
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}; |
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struct NormalTextureInfo { |
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int index = -1; // required |
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int texCoord; // The set index of texture's TEXCOORD attribute used for |
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// texture coordinate mapping. |
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double scale; // scaledNormal = normalize((<sampled normal texture value> |
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// * 2.0 - 1.0) * vec3(<normal scale>, <normal scale>, 1.0)) |
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Value extras; |
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ExtensionMap extensions; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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NormalTextureInfo() : index(-1), texCoord(0), scale(1.0) {} |
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DEFAULT_METHODS(NormalTextureInfo) |
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bool operator==(const NormalTextureInfo &) const; |
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}; |
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struct OcclusionTextureInfo { |
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int index = -1; // required |
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int texCoord; // The set index of texture's TEXCOORD attribute used for |
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// texture coordinate mapping. |
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double strength; // occludedColor = lerp(color, color * <sampled occlusion |
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// texture value>, <occlusion strength>) |
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Value extras; |
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ExtensionMap extensions; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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OcclusionTextureInfo() : index(-1), texCoord(0), strength(1.0) {} |
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DEFAULT_METHODS(OcclusionTextureInfo) |
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bool operator==(const OcclusionTextureInfo &) const; |
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}; |
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// pbrMetallicRoughness class defined in glTF 2.0 spec. |
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struct PbrMetallicRoughness { |
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std::vector<double> baseColorFactor; // len = 4. default [1,1,1,1] |
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TextureInfo baseColorTexture; |
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double metallicFactor; // default 1 |
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double roughnessFactor; // default 1 |
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TextureInfo metallicRoughnessTexture; |
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Value extras; |
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ExtensionMap extensions; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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PbrMetallicRoughness() |
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: baseColorFactor(std::vector<double>{1.0, 1.0, 1.0, 1.0}), |
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metallicFactor(1.0), |
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roughnessFactor(1.0) {} |
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DEFAULT_METHODS(PbrMetallicRoughness) |
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bool operator==(const PbrMetallicRoughness &) const; |
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}; |
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// Each extension should be stored in a ParameterMap. |
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// members not in the values could be included in the ParameterMap |
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// to keep a single material model |
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struct Material { |
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std::string name; |
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std::vector<double> emissiveFactor; // length 3. default [0, 0, 0] |
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std::string alphaMode; // default "OPAQUE" |
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double alphaCutoff; // default 0.5 |
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bool doubleSided; // default false; |
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PbrMetallicRoughness pbrMetallicRoughness; |
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NormalTextureInfo normalTexture; |
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OcclusionTextureInfo occlusionTexture; |
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TextureInfo emissiveTexture; |
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// For backward compatibility |
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// TODO(syoyo): Remove `values` and `additionalValues` in the next release. |
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ParameterMap values; |
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ParameterMap additionalValues; |
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ExtensionMap extensions; |
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Value extras; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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Material() : alphaMode("OPAQUE"), alphaCutoff(0.5), doubleSided(false) {} |
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DEFAULT_METHODS(Material) |
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bool operator==(const Material &) const; |
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}; |
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struct BufferView { |
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std::string name; |
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int buffer{-1}; // Required |
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size_t byteOffset{0}; // minimum 0, default 0 |
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size_t byteLength{0}; // required, minimum 1. 0 = invalid |
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size_t byteStride{0}; // minimum 4, maximum 252 (multiple of 4), default 0 = |
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// understood to be tightly packed |
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int target{0}; // ["ARRAY_BUFFER", "ELEMENT_ARRAY_BUFFER"] for vertex indices |
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// or atttribs. Could be 0 for other data |
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Value extras; |
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ExtensionMap extensions; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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bool dracoDecoded{false}; // Flag indicating this has been draco decoded |
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BufferView() |
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: buffer(-1), |
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byteOffset(0), |
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byteLength(0), |
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byteStride(0), |
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target(0), |
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dracoDecoded(false) {} |
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DEFAULT_METHODS(BufferView) |
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bool operator==(const BufferView &) const; |
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}; |
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struct Accessor { |
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int bufferView; // optional in spec but required here since sparse accessor |
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// are not supported |
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std::string name; |
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size_t byteOffset; |
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bool normalized; // optional. |
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int componentType; // (required) One of TINYGLTF_COMPONENT_TYPE_*** |
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size_t count; // required |
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int type; // (required) One of TINYGLTF_TYPE_*** .. |
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Value extras; |
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ExtensionMap extensions; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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std::vector<double> |
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minValues; // optional. integer value is promoted to double |
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std::vector<double> |
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maxValues; // optional. integer value is promoted to double |
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struct { |
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int count; |
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bool isSparse; |
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struct { |
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int byteOffset; |
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int bufferView; |
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int componentType; // a TINYGLTF_COMPONENT_TYPE_ value |
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} indices; |
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struct { |
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int bufferView; |
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int byteOffset; |
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} values; |
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} sparse; |
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/// |
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/// Utility function to compute byteStride for a given bufferView object. |
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/// Returns -1 upon invalid glTF value or parameter configuration. |
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/// |
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int ByteStride(const BufferView &bufferViewObject) const { |
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if (bufferViewObject.byteStride == 0) { |
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// Assume data is tightly packed. |
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int componentSizeInBytes = |
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GetComponentSizeInBytes(static_cast<uint32_t>(componentType)); |
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if (componentSizeInBytes <= 0) { |
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return -1; |
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} |
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int numComponents = GetNumComponentsInType(static_cast<uint32_t>(type)); |
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if (numComponents <= 0) { |
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return -1; |
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} |
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return componentSizeInBytes * numComponents; |
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} else { |
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// Check if byteStride is a mulple of the size of the accessor's component |
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// type. |
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int componentSizeInBytes = |
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GetComponentSizeInBytes(static_cast<uint32_t>(componentType)); |
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if (componentSizeInBytes <= 0) { |
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return -1; |
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} |
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if ((bufferViewObject.byteStride % uint32_t(componentSizeInBytes)) != 0) { |
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return -1; |
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} |
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return static_cast<int>(bufferViewObject.byteStride); |
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} |
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// unreachable return 0; |
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} |
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Accessor() |
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: bufferView(-1), |
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byteOffset(0), |
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normalized(false), |
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componentType(-1), |
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count(0), |
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type(-1) { |
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sparse.isSparse = false; |
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} |
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DEFAULT_METHODS(Accessor) |
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bool operator==(const tinygltf::Accessor &) const; |
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}; |
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struct PerspectiveCamera { |
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double aspectRatio; // min > 0 |
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double yfov; // required. min > 0 |
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double zfar; // min > 0 |
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double znear; // required. min > 0 |
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PerspectiveCamera() |
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: aspectRatio(0.0), |
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yfov(0.0), |
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zfar(0.0) // 0 = use infinite projecton matrix |
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, |
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znear(0.0) {} |
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DEFAULT_METHODS(PerspectiveCamera) |
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bool operator==(const PerspectiveCamera &) const; |
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ExtensionMap extensions; |
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Value extras; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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}; |
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struct OrthographicCamera { |
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double xmag; // required. must not be zero. |
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double ymag; // required. must not be zero. |
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double zfar; // required. `zfar` must be greater than `znear`. |
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double znear; // required |
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OrthographicCamera() : xmag(0.0), ymag(0.0), zfar(0.0), znear(0.0) {} |
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DEFAULT_METHODS(OrthographicCamera) |
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bool operator==(const OrthographicCamera &) const; |
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ExtensionMap extensions; |
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Value extras; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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}; |
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struct Camera { |
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std::string type; // required. "perspective" or "orthographic" |
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std::string name; |
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PerspectiveCamera perspective; |
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OrthographicCamera orthographic; |
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Camera() {} |
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DEFAULT_METHODS(Camera) |
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bool operator==(const Camera &) const; |
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ExtensionMap extensions; |
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Value extras; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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}; |
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struct Primitive { |
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std::map<std::string, int> attributes; // (required) A dictionary object of |
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// integer, where each integer |
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// is the index of the accessor |
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// containing an attribute. |
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int material; // The index of the material to apply to this primitive |
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// when rendering. |
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int indices; // The index of the accessor that contains the indices. |
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int mode; // one of TINYGLTF_MODE_*** |
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std::vector<std::map<std::string, int> > targets; // array of morph targets, |
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// where each target is a dict with attributes in ["POSITION, "NORMAL", |
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// "TANGENT"] pointing |
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// to their corresponding accessors |
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ExtensionMap extensions; |
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Value extras; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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Primitive() { |
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material = -1; |
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indices = -1; |
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mode = -1; |
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} |
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DEFAULT_METHODS(Primitive) |
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bool operator==(const Primitive &) const; |
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}; |
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struct Mesh { |
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std::string name; |
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std::vector<Primitive> primitives; |
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std::vector<double> weights; // weights to be applied to the Morph Targets |
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ExtensionMap extensions; |
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Value extras; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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Mesh() = default; |
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DEFAULT_METHODS(Mesh) |
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bool operator==(const Mesh &) const; |
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}; |
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class Node { |
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public: |
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Node() : camera(-1), skin(-1), mesh(-1) {} |
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DEFAULT_METHODS(Node) |
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bool operator==(const Node &) const; |
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int camera; // the index of the camera referenced by this node |
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std::string name; |
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int skin; |
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int mesh; |
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std::vector<int> children; |
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std::vector<double> rotation; // length must be 0 or 4 |
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std::vector<double> scale; // length must be 0 or 3 |
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std::vector<double> translation; // length must be 0 or 3 |
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std::vector<double> matrix; // length must be 0 or 16 |
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std::vector<double> weights; // The weights of the instantiated Morph Target |
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ExtensionMap extensions; |
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Value extras; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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}; |
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struct Buffer { |
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std::string name; |
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std::vector<unsigned char> data; |
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std::string |
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uri; // considered as required here but not in the spec (need to clarify) |
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// uri is not decoded(e.g. whitespace may be represented as %20) |
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Value extras; |
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ExtensionMap extensions; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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Buffer() = default; |
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DEFAULT_METHODS(Buffer) |
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bool operator==(const Buffer &) const; |
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}; |
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struct Asset { |
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std::string version = "2.0"; // required |
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std::string generator; |
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std::string minVersion; |
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std::string copyright; |
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ExtensionMap extensions; |
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Value extras; |
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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Asset() = default; |
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DEFAULT_METHODS(Asset) |
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bool operator==(const Asset &) const; |
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}; |
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struct Scene { |
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std::string name; |
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std::vector<int> nodes; |
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ExtensionMap extensions; |
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Value extras; |
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|
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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Scene() = default; |
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DEFAULT_METHODS(Scene) |
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bool operator==(const Scene &) const; |
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}; |
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struct SpotLight { |
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double innerConeAngle; |
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double outerConeAngle; |
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SpotLight() : innerConeAngle(0.0), outerConeAngle(0.7853981634) {} |
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DEFAULT_METHODS(SpotLight) |
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bool operator==(const SpotLight &) const; |
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ExtensionMap extensions; |
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Value extras; |
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|
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// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
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std::string extras_json_string; |
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std::string extensions_json_string; |
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}; |
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struct Light { |
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std::string name; |
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std::vector<double> color; |
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double intensity{1.0}; |
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std::string type; |
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double range{0.0}; // 0.0 = infinite |
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SpotLight spot; |
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Light() : intensity(1.0), range(0.0) {} |
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DEFAULT_METHODS(Light) |
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bool operator==(const Light &) const; |
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|
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ExtensionMap extensions; |
|
Value extras; |
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
|
std::string extras_json_string; |
|
std::string extensions_json_string; |
|
}; |
|
|
|
class Model { |
|
public: |
|
Model() = default; |
|
DEFAULT_METHODS(Model) |
|
|
|
bool operator==(const Model &) const; |
|
|
|
std::vector<Accessor> accessors; |
|
std::vector<Animation> animations; |
|
std::vector<Buffer> buffers; |
|
std::vector<BufferView> bufferViews; |
|
std::vector<Material> materials; |
|
std::vector<Mesh> meshes; |
|
std::vector<Node> nodes; |
|
std::vector<Texture> textures; |
|
std::vector<Image> images; |
|
std::vector<Skin> skins; |
|
std::vector<Sampler> samplers; |
|
std::vector<Camera> cameras; |
|
std::vector<Scene> scenes; |
|
std::vector<Light> lights; |
|
|
|
int defaultScene = -1; |
|
std::vector<std::string> extensionsUsed; |
|
std::vector<std::string> extensionsRequired; |
|
|
|
Asset asset; |
|
|
|
Value extras; |
|
ExtensionMap extensions; |
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled. |
|
std::string extras_json_string; |
|
std::string extensions_json_string; |
|
}; |
|
|
|
enum SectionCheck { |
|
NO_REQUIRE = 0x00, |
|
REQUIRE_VERSION = 0x01, |
|
REQUIRE_SCENE = 0x02, |
|
REQUIRE_SCENES = 0x04, |
|
REQUIRE_NODES = 0x08, |
|
REQUIRE_ACCESSORS = 0x10, |
|
REQUIRE_BUFFERS = 0x20, |
|
REQUIRE_BUFFER_VIEWS = 0x40, |
|
REQUIRE_ALL = 0x7f |
|
}; |
|
|
|
/// |
|
/// LoadImageDataFunction type. Signature for custom image loading callbacks. |
|
/// |
|
typedef bool (*LoadImageDataFunction)(Image *, const int, std::string *, |
|
std::string *, int, int, |
|
const unsigned char *, int, |
|
void *user_pointer); |
|
|
|
/// |
|
/// WriteImageDataFunction type. Signature for custom image writing callbacks. |
|
/// |
|
typedef bool (*WriteImageDataFunction)(const std::string *, const std::string *, |
|
Image *, bool, void *); |
|
|
|
#ifndef TINYGLTF_NO_STB_IMAGE |
|
// Declaration of default image loader callback |
|
bool LoadImageData(Image *image, const int image_idx, std::string *err, |
|
std::string *warn, int req_width, int req_height, |
|
const unsigned char *bytes, int size, void *); |
|
#endif |
|
|
|
#ifndef TINYGLTF_NO_STB_IMAGE_WRITE |
|
// Declaration of default image writer callback |
|
bool WriteImageData(const std::string *basepath, const std::string *filename, |
|
Image *image, bool embedImages, void *); |
|
#endif |
|
|
|
/// |
|
/// FilExistsFunction type. Signature for custom filesystem callbacks. |
|
/// |
|
typedef bool (*FileExistsFunction)(const std::string &abs_filename, void *); |
|
|
|
/// |
|
/// ExpandFilePathFunction type. Signature for custom filesystem callbacks. |
|
/// |
|
typedef std::string (*ExpandFilePathFunction)(const std::string &, void *); |
|
|
|
/// |
|
/// ReadWholeFileFunction type. Signature for custom filesystem callbacks. |
|
/// |
|
typedef bool (*ReadWholeFileFunction)(std::vector<unsigned char> *, |
|
std::string *, const std::string &, |
|
void *); |
|
|
|
/// |
|
/// WriteWholeFileFunction type. Signature for custom filesystem callbacks. |
|
/// |
|
typedef bool (*WriteWholeFileFunction)(std::string *, const std::string &, |
|
const std::vector<unsigned char> &, |
|
void *); |
|
|
|
/// |
|
/// A structure containing all required filesystem callbacks and a pointer to |
|
/// their user data. |
|
/// |
|
struct FsCallbacks { |
|
FileExistsFunction FileExists; |
|
ExpandFilePathFunction ExpandFilePath; |
|
ReadWholeFileFunction ReadWholeFile; |
|
WriteWholeFileFunction WriteWholeFile; |
|
|
|
void *user_data; // An argument that is passed to all fs callbacks |
|
}; |
|
|
|
#ifndef TINYGLTF_NO_FS |
|
// Declaration of default filesystem callbacks |
|
|
|
bool FileExists(const std::string &abs_filename, void *); |
|
|
|
/// |
|
/// Expand file path(e.g. `~` to home directory on posix, `%APPDATA%` to |
|
/// `C:\\Users\\tinygltf\\AppData`) |
|
/// |
|
/// @param[in] filepath File path string. Assume UTF-8 |
|
/// @param[in] userdata User data. Set to `nullptr` if you don't need it. |
|
/// |
|
std::string ExpandFilePath(const std::string &filepath, void *userdata); |
|
|
|
bool ReadWholeFile(std::vector<unsigned char> *out, std::string *err, |
|
const std::string &filepath, void *); |
|
|
|
bool WriteWholeFile(std::string *err, const std::string &filepath, |
|
const std::vector<unsigned char> &contents, void *); |
|
#endif |
|
|
|
/// |
|
/// glTF Parser/Serialier context. |
|
/// |
|
class TinyGLTF { |
|
public: |
|
#ifdef __clang__ |
|
#pragma clang diagnostic push |
|
#pragma clang diagnostic ignored "-Wc++98-compat" |
|
#endif |
|
|
|
TinyGLTF() : bin_data_(nullptr), bin_size_(0), is_binary_(false) {} |
|
|
|
#ifdef __clang__ |
|
#pragma clang diagnostic pop |
|
#endif |
|
|
|
~TinyGLTF() {} |
|
|
|
/// |
|
/// Loads glTF ASCII asset from a file. |
|
/// Set warning message to `warn` for example it fails to load asserts. |
|
/// Returns false and set error string to `err` if there's an error. |
|
/// |
|
bool LoadASCIIFromFile(Model *model, std::string *err, std::string *warn, |
|
const std::string &filename, |
|
unsigned int check_sections = REQUIRE_VERSION); |
|
|
|
/// |
|
/// Loads glTF ASCII asset from string(memory). |
|
/// `length` = strlen(str); |
|
/// Set warning message to `warn` for example it fails to load asserts. |
|
/// Returns false and set error string to `err` if there's an error. |
|
/// |
|
bool LoadASCIIFromString(Model *model, std::string *err, std::string *warn, |
|
const char *str, const unsigned int length, |
|
const std::string &base_dir, |
|
unsigned int check_sections = REQUIRE_VERSION); |
|
|
|
/// |
|
/// Loads glTF binary asset from a file. |
|
/// Set warning message to `warn` for example it fails to load asserts. |
|
/// Returns false and set error string to `err` if there's an error. |
|
/// |
|
bool LoadBinaryFromFile(Model *model, std::string *err, std::string *warn, |
|
const std::string &filename, |
|
unsigned int check_sections = REQUIRE_VERSION); |
|
|
|
/// |
|
/// Loads glTF binary asset from memory. |
|
/// `length` = strlen(str); |
|
/// Set warning message to `warn` for example it fails to load asserts. |
|
/// Returns false and set error string to `err` if there's an error. |
|
/// |
|
bool LoadBinaryFromMemory(Model *model, std::string *err, std::string *warn, |
|
const unsigned char *bytes, |
|
const unsigned int length, |
|
const std::string &base_dir = "", |
|
unsigned int check_sections = REQUIRE_VERSION); |
|
|
|
/// |
|
/// Write glTF to stream, buffers and images will be embedded |
|
/// |
|
bool WriteGltfSceneToStream(Model *model, std::ostream &stream, |
|
bool prettyPrint, bool writeBinary); |
|
|
|
/// |
|
/// Write glTF to file. |
|
/// |
|
bool WriteGltfSceneToFile(Model *model, const std::string &filename, |
|
bool embedImages, bool embedBuffers, |
|
bool prettyPrint, bool writeBinary); |
|
|
|
/// |
|
/// Set callback to use for loading image data |
|
/// |
|
void SetImageLoader(LoadImageDataFunction LoadImageData, void *user_data); |
|
|
|
/// |
|
/// Unset(remove) callback of loading image data |
|
/// |
|
void RemoveImageLoader(); |
|
|
|
/// |
|
/// Set callback to use for writing image data |
|
/// |
|
void SetImageWriter(WriteImageDataFunction WriteImageData, void *user_data); |
|
|
|
/// |
|
/// Set callbacks to use for filesystem (fs) access and their user data |
|
/// |
|
void SetFsCallbacks(FsCallbacks callbacks); |
|
|
|
/// |
|
/// Set serializing default values(default = false). |
|
/// When true, default values are force serialized to .glTF. |
|
/// This may be helpful if you want to serialize a full description of glTF |
|
/// data. |
|
/// |
|
/// TODO(LTE): Supply parsing option as function arguments to |
|
/// `LoadASCIIFromFile()` and others, not by a class method |
|
/// |
|
void SetSerializeDefaultValues(const bool enabled) { |
|
serialize_default_values_ = enabled; |
|
} |
|
|
|
bool GetSerializeDefaultValues() const { return serialize_default_values_; } |
|
|
|
/// |
|
/// Store original JSON string for `extras` and `extensions`. |
|
/// This feature will be useful when the user want to reconstruct custom data |
|
/// structure from JSON string. |
|
/// |
|
void SetStoreOriginalJSONForExtrasAndExtensions(const bool enabled) { |
|
store_original_json_for_extras_and_extensions_ = enabled; |
|
} |
|
|
|
bool GetStoreOriginalJSONForExtrasAndExtensions() const { |
|
return store_original_json_for_extras_and_extensions_; |
|
} |
|
|
|
/// |
|
/// Specify whether preserve image channales when loading images or not. |
|
/// (Not effective when the user supply their own LoadImageData callbacks) |
|
/// |
|
void SetPreserveImageChannels(bool onoff) { |
|
preserve_image_channels_ = onoff; |
|
} |
|
|
|
bool GetPreserveImageChannels() const { return preserve_image_channels_; } |
|
|
|
private: |
|
/// |
|
/// Loads glTF asset from string(memory). |
|
/// `length` = strlen(str); |
|
/// Set warning message to `warn` for example it fails to load asserts |
|
/// Returns false and set error string to `err` if there's an error. |
|
/// |
|
bool LoadFromString(Model *model, std::string *err, std::string *warn, |
|
const char *str, const unsigned int length, |
|
const std::string &base_dir, unsigned int check_sections); |
|
|
|
const unsigned char *bin_data_ = nullptr; |
|
size_t bin_size_ = 0; |
|
bool is_binary_ = false; |
|
|
|
bool serialize_default_values_ = false; ///< Serialize default values? |
|
|
|
bool store_original_json_for_extras_and_extensions_ = false; |
|
|
|
bool preserve_image_channels_ = false; /// Default false(expand channels to |
|
/// RGBA) for backward compatibility. |
|
|
|
FsCallbacks fs = { |
|
#ifndef TINYGLTF_NO_FS |
|
&tinygltf::FileExists, &tinygltf::ExpandFilePath, |
|
&tinygltf::ReadWholeFile, &tinygltf::WriteWholeFile, |
|
|
|
nullptr // Fs callback user data |
|
#else |
|
nullptr, nullptr, nullptr, nullptr, |
|
|
|
nullptr // Fs callback user data |
|
#endif |
|
}; |
|
|
|
LoadImageDataFunction LoadImageData = |
|
#ifndef TINYGLTF_NO_STB_IMAGE |
|
&tinygltf::LoadImageData; |
|
#else |
|
nullptr; |
|
#endif |
|
void *load_image_user_data_{nullptr}; |
|
bool user_image_loader_{false}; |
|
|
|
WriteImageDataFunction WriteImageData = |
|
#ifndef TINYGLTF_NO_STB_IMAGE_WRITE |
|
&tinygltf::WriteImageData; |
|
#else |
|
nullptr; |
|
#endif |
|
void *write_image_user_data_{nullptr}; |
|
}; |
|
|
|
#ifdef __clang__ |
|
#pragma clang diagnostic pop // -Wpadded |
|
#endif |
|
|
|
} // namespace tinygltf |
|
|
|
#endif // TINY_GLTF_H_ |
|
|
|
#if defined(TINYGLTF_IMPLEMENTATION) || defined(__INTELLISENSE__) |
|
#include <algorithm> |
|
//#include <cassert> |
|
#ifndef TINYGLTF_NO_FS |
|
#include <cstdio> |
|
#include <fstream> |
|
#endif |
|
#include <sstream> |
|
|
|
#ifdef __clang__ |
|
// Disable some warnings for external files. |
|
#pragma clang diagnostic push |
|
#pragma clang diagnostic ignored "-Wfloat-equal" |
|
#pragma clang diagnostic ignored "-Wexit-time-destructors" |
|
#pragma clang diagnostic ignored "-Wconversion" |
|
#pragma clang diagnostic ignored "-Wold-style-cast" |
|
#pragma clang diagnostic ignored "-Wglobal-constructors" |
|
#if __has_warning("-Wreserved-id-macro") |
|
#pragma clang diagnostic ignored "-Wreserved-id-macro" |
|
#endif |
|
#pragma clang diagnostic ignored "-Wdisabled-macro-expansion" |
|
#pragma clang diagnostic ignored "-Wpadded" |
|
#pragma clang diagnostic ignored "-Wc++98-compat" |
|
#pragma clang diagnostic ignored "-Wc++98-compat-pedantic" |
|
#pragma clang diagnostic ignored "-Wdocumentation-unknown-command" |
|
#pragma clang diagnostic ignored "-Wswitch-enum" |
|
#pragma clang diagnostic ignored "-Wimplicit-fallthrough" |
|
#pragma clang diagnostic ignored "-Wweak-vtables" |
|
#pragma clang diagnostic ignored "-Wcovered-switch-default" |
|
#if __has_warning("-Wdouble-promotion") |
|
#pragma clang diagnostic ignored "-Wdouble-promotion" |
|
#endif |
|
#if __has_warning("-Wcomma") |
|
#pragma clang diagnostic ignored "-Wcomma" |
|
#endif |
|
#if __has_warning("-Wzero-as-null-pointer-constant") |
|
#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" |
|
#endif |
|
#if __has_warning("-Wcast-qual") |
|
#pragma clang diagnostic ignored "-Wcast-qual" |
|
#endif |
|
#if __has_warning("-Wmissing-variable-declarations") |
|
#pragma clang diagnostic ignored "-Wmissing-variable-declarations" |
|
#endif |
|
#if __has_warning("-Wmissing-prototypes") |
|
#pragma clang diagnostic ignored "-Wmissing-prototypes" |
|
#endif |
|
#if __has_warning("-Wcast-align") |
|
#pragma clang diagnostic ignored "-Wcast-align" |
|
#endif |
|
#if __has_warning("-Wnewline-eof") |
|
#pragma clang diagnostic ignored "-Wnewline-eof" |
|
#endif |
|
#if __has_warning("-Wunused-parameter") |
|
#pragma clang diagnostic ignored "-Wunused-parameter" |
|
#endif |
|
#if __has_warning("-Wmismatched-tags") |
|
#pragma clang diagnostic ignored "-Wmismatched-tags" |
|
#endif |
|
#if __has_warning("-Wextra-semi-stmt") |
|
#pragma clang diagnostic ignored "-Wextra-semi-stmt" |
|
#endif |
|
#endif |
|
|
|
// Disable GCC warnings |
|
#ifdef __GNUC__ |
|
#pragma GCC diagnostic push |
|
#pragma GCC diagnostic ignored "-Wtype-limits" |
|
#endif // __GNUC__ |
|
|
|
#ifndef TINYGLTF_NO_INCLUDE_JSON |
|
#ifndef TINYGLTF_USE_RAPIDJSON |
|
#include "json.hpp" |
|
#else |
|
#ifndef TINYGLTF_NO_INCLUDE_RAPIDJSON |
|
#include "document.h" |
|
#include "prettywriter.h" |
|
#include "rapidjson.h" |
|
#include "stringbuffer.h" |
|
#include "writer.h" |
|
#endif |
|
#endif |
|
#endif |
|
|
|
#ifdef TINYGLTF_ENABLE_DRACO |
|
#include "draco/compression/decode.h" |
|
#include "draco/core/decoder_buffer.h" |
|
#endif |
|
|
|
#ifndef TINYGLTF_NO_STB_IMAGE |
|
#ifndef TINYGLTF_NO_INCLUDE_STB_IMAGE |
|
#include "stb_image.h" |
|
#endif |
|
#endif |
|
|
|
#ifndef TINYGLTF_NO_STB_IMAGE_WRITE |
|
#ifndef TINYGLTF_NO_INCLUDE_STB_IMAGE_WRITE |
|
#include "stb_image_write.h" |
|
#endif |
|
#endif |
|
|
|
#ifdef __clang__ |
|
#pragma clang diagnostic pop |
|
#endif |
|
|
|
#ifdef __GNUC__ |
|
#pragma GCC diagnostic pop |
|
#endif |
|
|
|
#ifdef _WIN32 |
|
|
|
// issue 143. |
|
// Define NOMINMAX to avoid min/max defines, |
|
// but undef it after included windows.h |
|
#ifndef NOMINMAX |
|
#define TINYGLTF_INTERNAL_NOMINMAX |
|
#define NOMINMAX |
|
#endif |
|
|
|
#ifndef WIN32_LEAN_AND_MEAN |
|
#define WIN32_LEAN_AND_MEAN |
|
#define TINYGLTF_INTERNAL_WIN32_LEAN_AND_MEAN |
|
#endif |
|
#include <windows.h> // include API for expanding a file path |
|
|
|
#ifdef TINYGLTF_INTERNAL_WIN32_LEAN_AND_MEAN |
|
#undef WIN32_LEAN_AND_MEAN |
|
#endif |
|
|
|
#if defined(TINYGLTF_INTERNAL_NOMINMAX) |
|
#undef NOMINMAX |
|
#endif |
|
|
|
#if defined(__GLIBCXX__) // mingw |
|
|
|
#include <fcntl.h> // _O_RDONLY |
|
|
|
#include <ext/stdio_filebuf.h> // fstream (all sorts of IO stuff) + stdio_filebuf (=streambuf) |
|
|
|
#endif |
|
|
|
#elif !defined(__ANDROID__) |
|
#include <wordexp.h> |
|
#endif |
|
|
|
#if defined(__sparcv9) |
|
// Big endian |
|
#else |
|
#if (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) || MINIZ_X86_OR_X64_CPU |
|
#define TINYGLTF_LITTLE_ENDIAN 1 |
|
#endif |
|
#endif |
|
|
|
namespace { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
|
|
#ifdef TINYGLTF_USE_RAPIDJSON_CRTALLOCATOR |
|
// This uses the RapidJSON CRTAllocator. It is thread safe and multiple |
|
// documents may be active at once. |
|
using json = |
|
rapidjson::GenericValue<rapidjson::UTF8<>, rapidjson::CrtAllocator>; |
|
using json_const_iterator = json::ConstMemberIterator; |
|
using json_const_array_iterator = json const *; |
|
using JsonDocument = |
|
rapidjson::GenericDocument<rapidjson::UTF8<>, rapidjson::CrtAllocator>; |
|
rapidjson::CrtAllocator s_CrtAllocator; // stateless and thread safe |
|
rapidjson::CrtAllocator &GetAllocator() { return s_CrtAllocator; } |
|
#else |
|
// This uses the default RapidJSON MemoryPoolAllocator. It is very fast, but |
|
// not thread safe. Only a single JsonDocument may be active at any one time, |
|
// meaning only a single gltf load/save can be active any one time. |
|
using json = rapidjson::Value; |
|
using json_const_iterator = json::ConstMemberIterator; |
|
using json_const_array_iterator = json const *; |
|
rapidjson::Document *s_pActiveDocument = nullptr; |
|
rapidjson::Document::AllocatorType &GetAllocator() { |
|
assert(s_pActiveDocument); // Root json node must be JsonDocument type |
|
return s_pActiveDocument->GetAllocator(); |
|
} |
|
|
|
#ifdef __clang__ |
|
#pragma clang diagnostic push |
|
// Suppress JsonDocument(JsonDocument &&rhs) noexcept |
|
#pragma clang diagnostic ignored "-Wunused-member-function" |
|
#endif |
|
|
|
struct JsonDocument : public rapidjson::Document { |
|
JsonDocument() { |
|
assert(s_pActiveDocument == |
|
nullptr); // When using default allocator, only one document can be |
|
// active at a time, if you need multiple active at once, |
|
// define TINYGLTF_USE_RAPIDJSON_CRTALLOCATOR |
|
s_pActiveDocument = this; |
|
} |
|
JsonDocument(const JsonDocument &) = delete; |
|
JsonDocument(JsonDocument &&rhs) noexcept |
|
: rapidjson::Document(std::move(rhs)) { |
|
s_pActiveDocument = this; |
|
rhs.isNil = true; |
|
} |
|
~JsonDocument() { |
|
if (!isNil) { |
|
s_pActiveDocument = nullptr; |
|
} |
|
} |
|
|
|
private: |
|
bool isNil = false; |
|
}; |
|
|
|
#ifdef __clang__ |
|
#pragma clang diagnostic pop |
|
#endif |
|
|
|
#endif // TINYGLTF_USE_RAPIDJSON_CRTALLOCATOR |
|
|
|
#else |
|
using nlohmann::json; |
|
using json_const_iterator = json::const_iterator; |
|
using json_const_array_iterator = json_const_iterator; |
|
using JsonDocument = json; |
|
#endif |
|
|
|
void JsonParse(JsonDocument &doc, const char *str, size_t length, |
|
bool throwExc = false) { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
(void)throwExc; |
|
doc.Parse(str, length); |
|
#else |
|
doc = json::parse(str, str + length, nullptr, throwExc); |
|
#endif |
|
} |
|
} // namespace |
|
|
|
#ifdef __APPLE__ |
|
#include "TargetConditionals.h" |
|
#endif |
|
|
|
#ifdef __clang__ |
|
#pragma clang diagnostic push |
|
#pragma clang diagnostic ignored "-Wc++98-compat" |
|
#endif |
|
|
|
namespace tinygltf { |
|
|
|
/// |
|
/// Internal LoadImageDataOption struct. |
|
/// This struct is passed through `user_pointer` in LoadImageData. |
|
/// The struct is not passed when the user supply their own LoadImageData |
|
/// callbacks. |
|
/// |
|
struct LoadImageDataOption { |
|
// true: preserve image channels(e.g. load as RGB image if the image has RGB |
|
// channels) default `false`(channels are expanded to RGBA for backward |
|
// compatibility). |
|
bool preserve_channels{false}; |
|
}; |
|
|
|
// Equals function for Value, for recursivity |
|
static bool Equals(const tinygltf::Value &one, const tinygltf::Value &other) { |
|
if (one.Type() != other.Type()) return false; |
|
|
|
switch (one.Type()) { |
|
case NULL_TYPE: |
|
return true; |
|
case BOOL_TYPE: |
|
return one.Get<bool>() == other.Get<bool>(); |
|
case REAL_TYPE: |
|
return TINYGLTF_DOUBLE_EQUAL(one.Get<double>(), other.Get<double>()); |
|
case INT_TYPE: |
|
return one.Get<int>() == other.Get<int>(); |
|
case OBJECT_TYPE: { |
|
auto oneObj = one.Get<tinygltf::Value::Object>(); |
|
auto otherObj = other.Get<tinygltf::Value::Object>(); |
|
if (oneObj.size() != otherObj.size()) return false; |
|
for (auto &it : oneObj) { |
|
auto otherIt = otherObj.find(it.first); |
|
if (otherIt == otherObj.end()) return false; |
|
|
|
if (!Equals(it.second, otherIt->second)) return false; |
|
} |
|
return true; |
|
} |
|
case ARRAY_TYPE: { |
|
if (one.Size() != other.Size()) return false; |
|
for (int i = 0; i < int(one.Size()); ++i) |
|
if (!Equals(one.Get(i), other.Get(i))) return false; |
|
return true; |
|
} |
|
case STRING_TYPE: |
|
return one.Get<std::string>() == other.Get<std::string>(); |
|
case BINARY_TYPE: |
|
return one.Get<std::vector<unsigned char> >() == |
|
other.Get<std::vector<unsigned char> >(); |
|
default: { |
|
// unhandled type |
|
return false; |
|
} |
|
} |
|
} |
|
|
|
// Equals function for std::vector<double> using TINYGLTF_DOUBLE_EPSILON |
|
static bool Equals(const std::vector<double> &one, |
|
const std::vector<double> &other) { |
|
if (one.size() != other.size()) return false; |
|
for (int i = 0; i < int(one.size()); ++i) { |
|
if (!TINYGLTF_DOUBLE_EQUAL(one[size_t(i)], other[size_t(i)])) return false; |
|
} |
|
return true; |
|
} |
|
|
|
bool Accessor::operator==(const Accessor &other) const { |
|
return this->bufferView == other.bufferView && |
|
this->byteOffset == other.byteOffset && |
|
this->componentType == other.componentType && |
|
this->count == other.count && this->extensions == other.extensions && |
|
this->extras == other.extras && |
|
Equals(this->maxValues, other.maxValues) && |
|
Equals(this->minValues, other.minValues) && this->name == other.name && |
|
this->normalized == other.normalized && this->type == other.type; |
|
} |
|
bool Animation::operator==(const Animation &other) const { |
|
return this->channels == other.channels && |
|
this->extensions == other.extensions && this->extras == other.extras && |
|
this->name == other.name && this->samplers == other.samplers; |
|
} |
|
bool AnimationChannel::operator==(const AnimationChannel &other) const { |
|
return this->extensions == other.extensions && this->extras == other.extras && |
|
this->target_node == other.target_node && |
|
this->target_path == other.target_path && |
|
this->sampler == other.sampler; |
|
} |
|
bool AnimationSampler::operator==(const AnimationSampler &other) const { |
|
return this->extras == other.extras && this->extensions == other.extensions && |
|
this->input == other.input && |
|
this->interpolation == other.interpolation && |
|
this->output == other.output; |
|
} |
|
bool Asset::operator==(const Asset &other) const { |
|
return this->copyright == other.copyright && |
|
this->extensions == other.extensions && this->extras == other.extras && |
|
this->generator == other.generator && |
|
this->minVersion == other.minVersion && this->version == other.version; |
|
} |
|
bool Buffer::operator==(const Buffer &other) const { |
|
return this->data == other.data && this->extensions == other.extensions && |
|
this->extras == other.extras && this->name == other.name && |
|
this->uri == other.uri; |
|
} |
|
bool BufferView::operator==(const BufferView &other) const { |
|
return this->buffer == other.buffer && this->byteLength == other.byteLength && |
|
this->byteOffset == other.byteOffset && |
|
this->byteStride == other.byteStride && this->name == other.name && |
|
this->target == other.target && this->extensions == other.extensions && |
|
this->extras == other.extras && |
|
this->dracoDecoded == other.dracoDecoded; |
|
} |
|
bool Camera::operator==(const Camera &other) const { |
|
return this->name == other.name && this->extensions == other.extensions && |
|
this->extras == other.extras && |
|
this->orthographic == other.orthographic && |
|
this->perspective == other.perspective && this->type == other.type; |
|
} |
|
bool Image::operator==(const Image &other) const { |
|
return this->bufferView == other.bufferView && |
|
this->component == other.component && |
|
this->extensions == other.extensions && this->extras == other.extras && |
|
this->height == other.height && this->image == other.image && |
|
this->mimeType == other.mimeType && this->name == other.name && |
|
this->uri == other.uri && this->width == other.width; |
|
} |
|
bool Light::operator==(const Light &other) const { |
|
return Equals(this->color, other.color) && this->name == other.name && |
|
this->type == other.type; |
|
} |
|
bool Material::operator==(const Material &other) const { |
|
return (this->pbrMetallicRoughness == other.pbrMetallicRoughness) && |
|
(this->normalTexture == other.normalTexture) && |
|
(this->occlusionTexture == other.occlusionTexture) && |
|
(this->emissiveTexture == other.emissiveTexture) && |
|
Equals(this->emissiveFactor, other.emissiveFactor) && |
|
(this->alphaMode == other.alphaMode) && |
|
TINYGLTF_DOUBLE_EQUAL(this->alphaCutoff, other.alphaCutoff) && |
|
(this->doubleSided == other.doubleSided) && |
|
(this->extensions == other.extensions) && |
|
(this->extras == other.extras) && (this->values == other.values) && |
|
(this->additionalValues == other.additionalValues) && |
|
(this->name == other.name); |
|
} |
|
bool Mesh::operator==(const Mesh &other) const { |
|
return this->extensions == other.extensions && this->extras == other.extras && |
|
this->name == other.name && Equals(this->weights, other.weights) && |
|
this->primitives == other.primitives; |
|
} |
|
bool Model::operator==(const Model &other) const { |
|
return this->accessors == other.accessors && |
|
this->animations == other.animations && this->asset == other.asset && |
|
this->buffers == other.buffers && |
|
this->bufferViews == other.bufferViews && |
|
this->cameras == other.cameras && |
|
this->defaultScene == other.defaultScene && |
|
this->extensions == other.extensions && |
|
this->extensionsRequired == other.extensionsRequired && |
|
this->extensionsUsed == other.extensionsUsed && |
|
this->extras == other.extras && this->images == other.images && |
|
this->lights == other.lights && this->materials == other.materials && |
|
this->meshes == other.meshes && this->nodes == other.nodes && |
|
this->samplers == other.samplers && this->scenes == other.scenes && |
|
this->skins == other.skins && this->textures == other.textures; |
|
} |
|
bool Node::operator==(const Node &other) const { |
|
return this->camera == other.camera && this->children == other.children && |
|
this->extensions == other.extensions && this->extras == other.extras && |
|
Equals(this->matrix, other.matrix) && this->mesh == other.mesh && |
|
this->name == other.name && Equals(this->rotation, other.rotation) && |
|
Equals(this->scale, other.scale) && this->skin == other.skin && |
|
Equals(this->translation, other.translation) && |
|
Equals(this->weights, other.weights); |
|
} |
|
bool SpotLight::operator==(const SpotLight &other) const { |
|
return this->extensions == other.extensions && this->extras == other.extras && |
|
TINYGLTF_DOUBLE_EQUAL(this->innerConeAngle, other.innerConeAngle) && |
|
TINYGLTF_DOUBLE_EQUAL(this->outerConeAngle, other.outerConeAngle); |
|
} |
|
bool OrthographicCamera::operator==(const OrthographicCamera &other) const { |
|
return this->extensions == other.extensions && this->extras == other.extras && |
|
TINYGLTF_DOUBLE_EQUAL(this->xmag, other.xmag) && |
|
TINYGLTF_DOUBLE_EQUAL(this->ymag, other.ymag) && |
|
TINYGLTF_DOUBLE_EQUAL(this->zfar, other.zfar) && |
|
TINYGLTF_DOUBLE_EQUAL(this->znear, other.znear); |
|
} |
|
bool Parameter::operator==(const Parameter &other) const { |
|
if (this->bool_value != other.bool_value || |
|
this->has_number_value != other.has_number_value) |
|
return false; |
|
|
|
if (!TINYGLTF_DOUBLE_EQUAL(this->number_value, other.number_value)) |
|
return false; |
|
|
|
if (this->json_double_value.size() != other.json_double_value.size()) |
|
return false; |
|
for (auto &it : this->json_double_value) { |
|
auto otherIt = other.json_double_value.find(it.first); |
|
if (otherIt == other.json_double_value.end()) return false; |
|
|
|
if (!TINYGLTF_DOUBLE_EQUAL(it.second, otherIt->second)) return false; |
|
} |
|
|
|
if (!Equals(this->number_array, other.number_array)) return false; |
|
|
|
if (this->string_value != other.string_value) return false; |
|
|
|
return true; |
|
} |
|
bool PerspectiveCamera::operator==(const PerspectiveCamera &other) const { |
|
return TINYGLTF_DOUBLE_EQUAL(this->aspectRatio, other.aspectRatio) && |
|
this->extensions == other.extensions && this->extras == other.extras && |
|
TINYGLTF_DOUBLE_EQUAL(this->yfov, other.yfov) && |
|
TINYGLTF_DOUBLE_EQUAL(this->zfar, other.zfar) && |
|
TINYGLTF_DOUBLE_EQUAL(this->znear, other.znear); |
|
} |
|
bool Primitive::operator==(const Primitive &other) const { |
|
return this->attributes == other.attributes && this->extras == other.extras && |
|
this->indices == other.indices && this->material == other.material && |
|
this->mode == other.mode && this->targets == other.targets; |
|
} |
|
bool Sampler::operator==(const Sampler &other) const { |
|
return this->extensions == other.extensions && this->extras == other.extras && |
|
this->magFilter == other.magFilter && |
|
this->minFilter == other.minFilter && this->name == other.name && |
|
this->wrapT == other.wrapT; |
|
|
|
//this->wrapR == other.wrapR && this->wrapS == other.wrapS && |
|
} |
|
bool Scene::operator==(const Scene &other) const { |
|
return this->extensions == other.extensions && this->extras == other.extras && |
|
this->name == other.name && this->nodes == other.nodes; |
|
} |
|
bool Skin::operator==(const Skin &other) const { |
|
return this->extensions == other.extensions && this->extras == other.extras && |
|
this->inverseBindMatrices == other.inverseBindMatrices && |
|
this->joints == other.joints && this->name == other.name && |
|
this->skeleton == other.skeleton; |
|
} |
|
bool Texture::operator==(const Texture &other) const { |
|
return this->extensions == other.extensions && this->extras == other.extras && |
|
this->name == other.name && this->sampler == other.sampler && |
|
this->source == other.source; |
|
} |
|
bool TextureInfo::operator==(const TextureInfo &other) const { |
|
return this->extensions == other.extensions && this->extras == other.extras && |
|
this->index == other.index && this->texCoord == other.texCoord; |
|
} |
|
bool NormalTextureInfo::operator==(const NormalTextureInfo &other) const { |
|
return this->extensions == other.extensions && this->extras == other.extras && |
|
this->index == other.index && this->texCoord == other.texCoord && |
|
TINYGLTF_DOUBLE_EQUAL(this->scale, other.scale); |
|
} |
|
bool OcclusionTextureInfo::operator==(const OcclusionTextureInfo &other) const { |
|
return this->extensions == other.extensions && this->extras == other.extras && |
|
this->index == other.index && this->texCoord == other.texCoord && |
|
TINYGLTF_DOUBLE_EQUAL(this->strength, other.strength); |
|
} |
|
bool PbrMetallicRoughness::operator==(const PbrMetallicRoughness &other) const { |
|
return this->extensions == other.extensions && this->extras == other.extras && |
|
(this->baseColorTexture == other.baseColorTexture) && |
|
(this->metallicRoughnessTexture == other.metallicRoughnessTexture) && |
|
Equals(this->baseColorFactor, other.baseColorFactor) && |
|
TINYGLTF_DOUBLE_EQUAL(this->metallicFactor, other.metallicFactor) && |
|
TINYGLTF_DOUBLE_EQUAL(this->roughnessFactor, other.roughnessFactor); |
|
} |
|
bool Value::operator==(const Value &other) const { |
|
return Equals(*this, other); |
|
} |
|
|
|
static void swap4(unsigned int *val) { |
|
#ifdef TINYGLTF_LITTLE_ENDIAN |
|
(void)val; |
|
#else |
|
unsigned int tmp = *val; |
|
unsigned char *dst = reinterpret_cast<unsigned char *>(val); |
|
unsigned char *src = reinterpret_cast<unsigned char *>(&tmp); |
|
|
|
dst[0] = src[3]; |
|
dst[1] = src[2]; |
|
dst[2] = src[1]; |
|
dst[3] = src[0]; |
|
#endif |
|
} |
|
|
|
static std::string JoinPath(const std::string &path0, |
|
const std::string &path1) { |
|
if (path0.empty()) { |
|
return path1; |
|
} else { |
|
// check '/' |
|
char lastChar = *path0.rbegin(); |
|
if (lastChar != '/') { |
|
return path0 + std::string("/") + path1; |
|
} else { |
|
return path0 + path1; |
|
} |
|
} |
|
} |
|
|
|
static std::string FindFile(const std::vector<std::string> &paths, |
|
const std::string &filepath, FsCallbacks *fs) { |
|
if (fs == nullptr || fs->ExpandFilePath == nullptr || |
|
fs->FileExists == nullptr) { |
|
// Error, fs callback[s] missing |
|
return std::string(); |
|
} |
|
|
|
for (size_t i = 0; i < paths.size(); i++) { |
|
std::string absPath = |
|
fs->ExpandFilePath(JoinPath(paths[i], filepath), fs->user_data); |
|
if (fs->FileExists(absPath, fs->user_data)) { |
|
return absPath; |
|
} |
|
} |
|
|
|
return std::string(); |
|
} |
|
|
|
static std::string GetFilePathExtension(const std::string &FileName) { |
|
if (FileName.find_last_of(".") != std::string::npos) |
|
return FileName.substr(FileName.find_last_of(".") + 1); |
|
return ""; |
|
} |
|
|
|
static std::string GetBaseDir(const std::string &filepath) { |
|
if (filepath.find_last_of("/\\") != std::string::npos) |
|
return filepath.substr(0, filepath.find_last_of("/\\")); |
|
return ""; |
|
} |
|
|
|
// https://stackoverflow.com/questions/8520560/get-a-file-name-from-a-path |
|
static std::string GetBaseFilename(const std::string &filepath) { |
|
return filepath.substr(filepath.find_last_of("/\\") + 1); |
|
} |
|
|
|
std::string base64_encode(unsigned char const *, unsigned int len); |
|
std::string base64_decode(std::string const &s); |
|
|
|
/* |
|
base64.cpp and base64.h |
|
|
|
Copyright (C) 2004-2008 René Nyffenegger |
|
|
|
This source code is provided 'as-is', without any express or implied |
|
warranty. In no event will the author be held liable for any damages |
|
arising from the use of this software. |
|
|
|
Permission is granted to anyone to use this software for any purpose, |
|
including commercial applications, and to alter it and redistribute it |
|
freely, subject to the following restrictions: |
|
|
|
1. The origin of this source code must not be misrepresented; you must not |
|
claim that you wrote the original source code. If you use this source code |
|
in a product, an acknowledgment in the product documentation would be |
|
appreciated but is not required. |
|
|
|
2. Altered source versions must be plainly marked as such, and must not be |
|
misrepresented as being the original source code. |
|
|
|
3. This notice may not be removed or altered from any source distribution. |
|
|
|
René Nyffenegger rene.nyffenegger@adp-gmbh.ch |
|
|
|
*/ |
|
|
|
#ifdef __clang__ |
|
#pragma clang diagnostic push |
|
#pragma clang diagnostic ignored "-Wsign-conversion" |
|
#pragma clang diagnostic ignored "-Wconversion" |
|
#endif |
|
|
|
static inline bool is_base64(unsigned char c) { |
|
return (isalnum(c) || (c == '+') || (c == '/')); |
|
} |
|
|
|
std::string base64_encode(unsigned char const *bytes_to_encode, |
|
unsigned int in_len) { |
|
std::string ret; |
|
int i = 0; |
|
int j = 0; |
|
unsigned char char_array_3[3]; |
|
unsigned char char_array_4[4]; |
|
|
|
const char *base64_chars = |
|
"ABCDEFGHIJKLMNOPQRSTUVWXYZ" |
|
"abcdefghijklmnopqrstuvwxyz" |
|
"0123456789+/"; |
|
|
|
while (in_len--) { |
|
char_array_3[i++] = *(bytes_to_encode++); |
|
if (i == 3) { |
|
char_array_4[0] = (char_array_3[0] & 0xfc) >> 2; |
|
char_array_4[1] = |
|
((char_array_3[0] & 0x03) << 4) + ((char_array_3[1] & 0xf0) >> 4); |
|
char_array_4[2] = |
|
((char_array_3[1] & 0x0f) << 2) + ((char_array_3[2] & 0xc0) >> 6); |
|
char_array_4[3] = char_array_3[2] & 0x3f; |
|
|
|
for (i = 0; (i < 4); i++) ret += base64_chars[char_array_4[i]]; |
|
i = 0; |
|
} |
|
} |
|
|
|
if (i) { |
|
for (j = i; j < 3; j++) char_array_3[j] = '\0'; |
|
|
|
char_array_4[0] = (char_array_3[0] & 0xfc) >> 2; |
|
char_array_4[1] = |
|
((char_array_3[0] & 0x03) << 4) + ((char_array_3[1] & 0xf0) >> 4); |
|
char_array_4[2] = |
|
((char_array_3[1] & 0x0f) << 2) + ((char_array_3[2] & 0xc0) >> 6); |
|
|
|
for (j = 0; (j < i + 1); j++) ret += base64_chars[char_array_4[j]]; |
|
|
|
while ((i++ < 3)) ret += '='; |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
std::string base64_decode(std::string const &encoded_string) { |
|
int in_len = static_cast<int>(encoded_string.size()); |
|
int i = 0; |
|
int j = 0; |
|
int in_ = 0; |
|
unsigned char char_array_4[4], char_array_3[3]; |
|
std::string ret; |
|
|
|
const std::string base64_chars = |
|
"ABCDEFGHIJKLMNOPQRSTUVWXYZ" |
|
"abcdefghijklmnopqrstuvwxyz" |
|
"0123456789+/"; |
|
|
|
while (in_len-- && (encoded_string[in_] != '=') && |
|
is_base64(encoded_string[in_])) { |
|
char_array_4[i++] = encoded_string[in_]; |
|
in_++; |
|
if (i == 4) { |
|
for (i = 0; i < 4; i++) |
|
char_array_4[i] = |
|
static_cast<unsigned char>(base64_chars.find(char_array_4[i])); |
|
|
|
char_array_3[0] = |
|
(char_array_4[0] << 2) + ((char_array_4[1] & 0x30) >> 4); |
|
char_array_3[1] = |
|
((char_array_4[1] & 0xf) << 4) + ((char_array_4[2] & 0x3c) >> 2); |
|
char_array_3[2] = ((char_array_4[2] & 0x3) << 6) + char_array_4[3]; |
|
|
|
for (i = 0; (i < 3); i++) ret += char_array_3[i]; |
|
i = 0; |
|
} |
|
} |
|
|
|
if (i) { |
|
for (j = i; j < 4; j++) char_array_4[j] = 0; |
|
|
|
for (j = 0; j < 4; j++) |
|
char_array_4[j] = |
|
static_cast<unsigned char>(base64_chars.find(char_array_4[j])); |
|
|
|
char_array_3[0] = (char_array_4[0] << 2) + ((char_array_4[1] & 0x30) >> 4); |
|
char_array_3[1] = |
|
((char_array_4[1] & 0xf) << 4) + ((char_array_4[2] & 0x3c) >> 2); |
|
char_array_3[2] = ((char_array_4[2] & 0x3) << 6) + char_array_4[3]; |
|
|
|
for (j = 0; (j < i - 1); j++) ret += char_array_3[j]; |
|
} |
|
|
|
return ret; |
|
} |
|
#ifdef __clang__ |
|
#pragma clang diagnostic pop |
|
#endif |
|
|
|
// https://github.com/syoyo/tinygltf/issues/228 |
|
// TODO(syoyo): Use uriparser https://uriparser.github.io/ for stricter Uri |
|
// decoding? |
|
// |
|
// https://stackoverflow.com/questions/18307429/encode-decode-url-in-c |
|
// http://dlib.net/dlib/server/server_http.cpp.html |
|
|
|
// --- dlib beign ------------------------------------------------------------ |
|
// Copyright (C) 2003 Davis E. King (davis@dlib.net) |
|
// License: Boost Software License See LICENSE.txt for the full license. |
|
|
|
namespace dlib { |
|
|
|
#if 0 |
|
inline unsigned char to_hex( unsigned char x ) |
|
{ |
|
return x + (x > 9 ? ('A'-10) : '0'); |
|
} |
|
|
|
const std::string urlencode( const std::string& s ) |
|
{ |
|
std::ostringstream os; |
|
|
|
for ( std::string::const_iterator ci = s.begin(); ci != s.end(); ++ci ) |
|
{ |
|
if ( (*ci >= 'a' && *ci <= 'z') || |
|
(*ci >= 'A' && *ci <= 'Z') || |
|
(*ci >= '0' && *ci <= '9') ) |
|
{ // allowed |
|
os << *ci; |
|
} |
|
else if ( *ci == ' ') |
|
{ |
|
os << '+'; |
|
} |
|
else |
|
{ |
|
os << '%' << to_hex(static_cast<unsigned char>(*ci >> 4)) << to_hex(static_cast<unsigned char>(*ci % 16)); |
|
} |
|
} |
|
|
|
return os.str(); |
|
} |
|
#endif |
|
|
|
inline unsigned char from_hex(unsigned char ch) { |
|
if (ch <= '9' && ch >= '0') |
|
ch -= '0'; |
|
else if (ch <= 'f' && ch >= 'a') |
|
ch -= 'a' - 10; |
|
else if (ch <= 'F' && ch >= 'A') |
|
ch -= 'A' - 10; |
|
else |
|
ch = 0; |
|
return ch; |
|
} |
|
|
|
static const std::string urldecode(const std::string &str) { |
|
using namespace std; |
|
string result; |
|
string::size_type i; |
|
for (i = 0; i < str.size(); ++i) { |
|
if (str[i] == '+') { |
|
result += ' '; |
|
} else if (str[i] == '%' && str.size() > i + 2) { |
|
const unsigned char ch1 = |
|
from_hex(static_cast<unsigned char>(str[i + 1])); |
|
const unsigned char ch2 = |
|
from_hex(static_cast<unsigned char>(str[i + 2])); |
|
const unsigned char ch = static_cast<unsigned char>((ch1 << 4) | ch2); |
|
result += static_cast<char>(ch); |
|
i += 2; |
|
} else { |
|
result += str[i]; |
|
} |
|
} |
|
return result; |
|
} |
|
|
|
} // namespace dlib |
|
// --- dlib end -------------------------------------------------------------- |
|
|
|
static bool LoadExternalFile(std::vector<unsigned char> *out, std::string *err, |
|
std::string *warn, const std::string &filename, |
|
const std::string &basedir, bool required, |
|
size_t reqBytes, bool checkSize, FsCallbacks *fs) { |
|
if (fs == nullptr || fs->FileExists == nullptr || |
|
fs->ExpandFilePath == nullptr || fs->ReadWholeFile == nullptr) { |
|
// This is a developer error, assert() ? |
|
if (err) { |
|
(*err) += "FS callback[s] not set\n"; |
|
} |
|
return false; |
|
} |
|
|
|
std::string *failMsgOut = required ? err : warn; |
|
|
|
out->clear(); |
|
|
|
std::vector<std::string> paths; |
|
paths.push_back(basedir); |
|
paths.push_back("."); |
|
|
|
std::string filepath = FindFile(paths, filename, fs); |
|
if (filepath.empty() || filename.empty()) { |
|
if (failMsgOut) { |
|
(*failMsgOut) += "File not found : " + filename + "\n"; |
|
} |
|
return false; |
|
} |
|
|
|
std::vector<unsigned char> buf; |
|
std::string fileReadErr; |
|
bool fileRead = |
|
fs->ReadWholeFile(&buf, &fileReadErr, filepath, fs->user_data); |
|
if (!fileRead) { |
|
if (failMsgOut) { |
|
(*failMsgOut) += |
|
"File read error : " + filepath + " : " + fileReadErr + "\n"; |
|
} |
|
return false; |
|
} |
|
|
|
size_t sz = buf.size(); |
|
if (sz == 0) { |
|
if (failMsgOut) { |
|
(*failMsgOut) += "File is empty : " + filepath + "\n"; |
|
} |
|
return false; |
|
} |
|
|
|
if (checkSize) { |
|
if (reqBytes == sz) { |
|
out->swap(buf); |
|
return true; |
|
} else { |
|
std::stringstream ss; |
|
ss << "File size mismatch : " << filepath << ", requestedBytes " |
|
<< reqBytes << ", but got " << sz << std::endl; |
|
if (failMsgOut) { |
|
(*failMsgOut) += ss.str(); |
|
} |
|
return false; |
|
} |
|
} |
|
|
|
out->swap(buf); |
|
return true; |
|
} |
|
|
|
void TinyGLTF::SetImageLoader(LoadImageDataFunction func, void *user_data) { |
|
LoadImageData = func; |
|
load_image_user_data_ = user_data; |
|
user_image_loader_ = true; |
|
} |
|
|
|
void TinyGLTF::RemoveImageLoader() { |
|
LoadImageData = |
|
#ifndef TINYGLTF_NO_STB_IMAGE |
|
&tinygltf::LoadImageData; |
|
#else |
|
nullptr; |
|
#endif |
|
|
|
load_image_user_data_ = nullptr; |
|
user_image_loader_ = false; |
|
} |
|
|
|
#ifndef TINYGLTF_NO_STB_IMAGE |
|
bool LoadImageData(Image *image, const int image_idx, std::string *err, |
|
std::string *warn, int req_width, int req_height, |
|
const unsigned char *bytes, int size, void *user_data) { |
|
(void)warn; |
|
|
|
LoadImageDataOption option; |
|
if (user_data) { |
|
option = *reinterpret_cast<LoadImageDataOption *>(user_data); |
|
} |
|
|
|
int w = 0, h = 0, comp = 0, req_comp = 0; |
|
|
|
unsigned char *data = nullptr; |
|
|
|
// preserve_channels true: Use channels stored in the image file. |
|
// false: force 32-bit textures for common Vulkan compatibility. It appears |
|
// that some GPU drivers do not support 24-bit images for Vulkan |
|
req_comp = option.preserve_channels ? 0 : 4; |
|
int bits = 8; |
|
int pixel_type = TINYGLTF_COMPONENT_TYPE_UNSIGNED_BYTE; |
|
|
|
// It is possible that the image we want to load is a 16bit per channel image |
|
// We are going to attempt to load it as 16bit per channel, and if it worked, |
|
// set the image data accordingly. We are casting the returned pointer into |
|
// unsigned char, because we are representing "bytes". But we are updating |
|
// the Image metadata to signal that this image uses 2 bytes (16bits) per |
|
// channel: |
|
if (stbi_is_16_bit_from_memory(bytes, size)) { |
|
data = reinterpret_cast<unsigned char *>( |
|
stbi_load_16_from_memory(bytes, size, &w, &h, &comp, req_comp)); |
|
if (data) { |
|
bits = 16; |
|
pixel_type = TINYGLTF_COMPONENT_TYPE_UNSIGNED_SHORT; |
|
} |
|
} |
|
|
|
// at this point, if data is still NULL, it means that the image wasn't |
|
// 16bit per channel, we are going to load it as a normal 8bit per channel |
|
// mage as we used to do: |
|
// if image cannot be decoded, ignore parsing and keep it by its path |
|
// don't break in this case |
|
// FIXME we should only enter this function if the image is embedded. If |
|
// image->uri references |
|
// an image file, it should be left as it is. Image loading should not be |
|
// mandatory (to support other formats) |
|
if (!data) data = stbi_load_from_memory(bytes, size, &w, &h, &comp, req_comp); |
|
if (!data) { |
|
// NOTE: you can use `warn` instead of `err` |
|
if (err) { |
|
(*err) += |
|
"Unknown image format. STB cannot decode image data for image[" + |
|
std::to_string(image_idx) + "] name = \"" + image->name + "\".\n"; |
|
} |
|
return false; |
|
} |
|
|
|
if ((w < 1) || (h < 1)) { |
|
stbi_image_free(data); |
|
if (err) { |
|
(*err) += "Invalid image data for image[" + std::to_string(image_idx) + |
|
"] name = \"" + image->name + "\"\n"; |
|
} |
|
return false; |
|
} |
|
|
|
if (req_width > 0) { |
|
if (req_width != w) { |
|
stbi_image_free(data); |
|
if (err) { |
|
(*err) += "Image width mismatch for image[" + |
|
std::to_string(image_idx) + "] name = \"" + image->name + |
|
"\"\n"; |
|
} |
|
return false; |
|
} |
|
} |
|
|
|
if (req_height > 0) { |
|
if (req_height != h) { |
|
stbi_image_free(data); |
|
if (err) { |
|
(*err) += "Image height mismatch. for image[" + |
|
std::to_string(image_idx) + "] name = \"" + image->name + |
|
"\"\n"; |
|
} |
|
return false; |
|
} |
|
} |
|
|
|
if (req_comp != 0) { |
|
// loaded data has `req_comp` channels(components) |
|
comp = req_comp; |
|
} |
|
|
|
image->width = w; |
|
image->height = h; |
|
image->component = comp; |
|
image->bits = bits; |
|
image->pixel_type = pixel_type; |
|
image->image.resize(static_cast<size_t>(w * h * comp) * size_t(bits / 8)); |
|
std::copy(data, data + w * h * comp * (bits / 8), image->image.begin()); |
|
stbi_image_free(data); |
|
|
|
return true; |
|
} |
|
#endif |
|
|
|
void TinyGLTF::SetImageWriter(WriteImageDataFunction func, void *user_data) { |
|
WriteImageData = func; |
|
write_image_user_data_ = user_data; |
|
} |
|
|
|
#ifndef TINYGLTF_NO_STB_IMAGE_WRITE |
|
static void WriteToMemory_stbi(void *context, void *data, int size) { |
|
std::vector<unsigned char> *buffer = |
|
reinterpret_cast<std::vector<unsigned char> *>(context); |
|
|
|
unsigned char *pData = reinterpret_cast<unsigned char *>(data); |
|
|
|
buffer->insert(buffer->end(), pData, pData + size); |
|
} |
|
|
|
bool WriteImageData(const std::string *basepath, const std::string *filename, |
|
Image *image, bool embedImages, void *fsPtr) { |
|
const std::string ext = GetFilePathExtension(*filename); |
|
|
|
// Write image to temporary buffer |
|
std::string header; |
|
std::vector<unsigned char> data; |
|
|
|
if (ext == "png") { |
|
if ((image->bits != 8) || |
|
(image->pixel_type != TINYGLTF_COMPONENT_TYPE_UNSIGNED_BYTE)) { |
|
// Unsupported pixel format |
|
return false; |
|
} |
|
|
|
if (!stbi_write_png_to_func(WriteToMemory_stbi, &data, image->width, |
|
image->height, image->component, |
|
&image->image[0], 0)) { |
|
return false; |
|
} |
|
header = "data:image/png;base64,"; |
|
} else if (ext == "jpg") { |
|
if (!stbi_write_jpg_to_func(WriteToMemory_stbi, &data, image->width, |
|
image->height, image->component, |
|
&image->image[0], 100)) { |
|
return false; |
|
} |
|
header = "data:image/jpeg;base64,"; |
|
} else if (ext == "bmp") { |
|
if (!stbi_write_bmp_to_func(WriteToMemory_stbi, &data, image->width, |
|
image->height, image->component, |
|
&image->image[0])) { |
|
return false; |
|
} |
|
header = "data:image/bmp;base64,"; |
|
} else if (!embedImages) { |
|
// Error: can't output requested format to file |
|
return false; |
|
} |
|
|
|
if (embedImages) { |
|
// Embed base64-encoded image into URI |
|
if (data.size()) { |
|
image->uri = |
|
header + |
|
base64_encode(&data[0], static_cast<unsigned int>(data.size())); |
|
} else { |
|
// Throw error? |
|
} |
|
} else { |
|
// Write image to disc |
|
FsCallbacks *fs = reinterpret_cast<FsCallbacks *>(fsPtr); |
|
if ((fs != nullptr) && (fs->WriteWholeFile != nullptr)) { |
|
const std::string imagefilepath = JoinPath(*basepath, *filename); |
|
std::string writeError; |
|
if (!fs->WriteWholeFile(&writeError, imagefilepath, data, |
|
fs->user_data)) { |
|
// Could not write image file to disc; Throw error ? |
|
return false; |
|
} |
|
} else { |
|
// Throw error? |
|
} |
|
image->uri = *filename; |
|
} |
|
|
|
return true; |
|
} |
|
#endif |
|
|
|
void TinyGLTF::SetFsCallbacks(FsCallbacks callbacks) { fs = callbacks; } |
|
|
|
#ifdef _WIN32 |
|
static inline std::wstring UTF8ToWchar(const std::string &str) { |
|
int wstr_size = |
|
MultiByteToWideChar(CP_UTF8, 0, str.data(), (int)str.size(), nullptr, 0); |
|
std::wstring wstr(wstr_size, 0); |
|
MultiByteToWideChar(CP_UTF8, 0, str.data(), (int)str.size(), &wstr[0], |
|
(int)wstr.size()); |
|
return wstr; |
|
} |
|
|
|
static inline std::string WcharToUTF8(const std::wstring &wstr) { |
|
int str_size = WideCharToMultiByte(CP_UTF8, 0, wstr.data(), (int)wstr.size(), |
|
nullptr, 0, NULL, NULL); |
|
std::string str(str_size, 0); |
|
WideCharToMultiByte(CP_UTF8, 0, wstr.data(), (int)wstr.size(), &str[0], |
|
(int)str.size(), NULL, NULL); |
|
return str; |
|
} |
|
#endif |
|
|
|
#ifndef TINYGLTF_NO_FS |
|
// Default implementations of filesystem functions |
|
|
|
bool FileExists(const std::string &abs_filename, void *) { |
|
bool ret; |
|
#ifdef TINYGLTF_ANDROID_LOAD_FROM_ASSETS |
|
if (asset_manager) { |
|
AAsset *asset = AAssetManager_open(asset_manager, abs_filename.c_str(), |
|
AASSET_MODE_STREAMING); |
|
if (!asset) { |
|
return false; |
|
} |
|
AAsset_close(asset); |
|
ret = true; |
|
} else { |
|
return false; |
|
} |
|
#else |
|
#ifdef _WIN32 |
|
#if defined(_MSC_VER) || defined(__GLIBCXX__) |
|
FILE *fp = nullptr; |
|
errno_t err = _wfopen_s(&fp, UTF8ToWchar(abs_filename).c_str(), L"rb"); |
|
if (err != 0) { |
|
return false; |
|
} |
|
#else |
|
FILE *fp = nullptr; |
|
errno_t err = fopen_s(&fp, abs_filename.c_str(), "rb"); |
|
if (err != 0) { |
|
return false; |
|
} |
|
#endif |
|
|
|
#else |
|
FILE *fp = fopen(abs_filename.c_str(), "rb"); |
|
#endif |
|
if (fp) { |
|
ret = true; |
|
fclose(fp); |
|
} else { |
|
ret = false; |
|
} |
|
#endif |
|
|
|
return ret; |
|
} |
|
|
|
std::string ExpandFilePath(const std::string &filepath, void *) { |
|
#ifdef _WIN32 |
|
// Assume input `filepath` is encoded in UTF-8 |
|
std::wstring wfilepath = UTF8ToWchar(filepath); |
|
DWORD wlen = ExpandEnvironmentStringsW(wfilepath.c_str(), nullptr, 0); |
|
wchar_t *wstr = new wchar_t[wlen]; |
|
ExpandEnvironmentStringsW(wfilepath.c_str(), wstr, wlen); |
|
|
|
std::wstring ws(wstr); |
|
delete[] wstr; |
|
return WcharToUTF8(ws); |
|
|
|
#else |
|
|
|
#if defined(TARGET_OS_IPHONE) || defined(TARGET_IPHONE_SIMULATOR) || \ |
|
defined(__ANDROID__) || defined(__EMSCRIPTEN__) |
|
// no expansion |
|
std::string s = filepath; |
|
#else |
|
std::string s; |
|
wordexp_t p; |
|
|
|
if (filepath.empty()) { |
|
return ""; |
|
} |
|
|
|
// Quote the string to keep any spaces in filepath intact. |
|
std::string quoted_path = "\"" + filepath + "\""; |
|
// char** w; |
|
int ret = wordexp(quoted_path.c_str(), &p, 0); |
|
if (ret) { |
|
// err |
|
s = filepath; |
|
return s; |
|
} |
|
|
|
// Use first element only. |
|
if (p.we_wordv) { |
|
s = std::string(p.we_wordv[0]); |
|
wordfree(&p); |
|
} else { |
|
s = filepath; |
|
} |
|
|
|
#endif |
|
|
|
return s; |
|
#endif |
|
} |
|
|
|
bool ReadWholeFile(std::vector<unsigned char> *out, std::string *err, |
|
const std::string &filepath, void *) { |
|
#ifdef TINYGLTF_ANDROID_LOAD_FROM_ASSETS |
|
if (asset_manager) { |
|
AAsset *asset = AAssetManager_open(asset_manager, filepath.c_str(), |
|
AASSET_MODE_STREAMING); |
|
if (!asset) { |
|
if (err) { |
|
(*err) += "File open error : " + filepath + "\n"; |
|
} |
|
return false; |
|
} |
|
size_t size = AAsset_getLength(asset); |
|
if (size == 0) { |
|
if (err) { |
|
(*err) += "Invalid file size : " + filepath + |
|
" (does the path point to a directory?)"; |
|
} |
|
return false; |
|
} |
|
out->resize(size); |
|
AAsset_read(asset, reinterpret_cast<char *>(&out->at(0)), size); |
|
AAsset_close(asset); |
|
return true; |
|
} else { |
|
if (err) { |
|
(*err) += "No asset manager specified : " + filepath + "\n"; |
|
} |
|
return false; |
|
} |
|
#else |
|
#ifdef _WIN32 |
|
#if defined(__GLIBCXX__) // mingw |
|
int file_descriptor = |
|
_wopen(UTF8ToWchar(filepath).c_str(), _O_RDONLY | _O_BINARY); |
|
__gnu_cxx::stdio_filebuf<char> wfile_buf(file_descriptor, std::ios_base::in); |
|
std::istream f(&wfile_buf); |
|
#elif defined(_MSC_VER) || defined(_LIBCPP_VERSION) |
|
// For libcxx, assume _LIBCPP_HAS_OPEN_WITH_WCHAR is defined to accept |
|
// `wchar_t *` |
|
std::ifstream f(UTF8ToWchar(filepath).c_str(), std::ifstream::binary); |
|
#else |
|
// Unknown compiler/runtime |
|
std::ifstream f(filepath.c_str(), std::ifstream::binary); |
|
#endif |
|
#else |
|
std::ifstream f(filepath.c_str(), std::ifstream::binary); |
|
#endif |
|
if (!f) { |
|
if (err) { |
|
(*err) += "File open error : " + filepath + "\n"; |
|
} |
|
return false; |
|
} |
|
|
|
f.seekg(0, f.end); |
|
size_t sz = static_cast<size_t>(f.tellg()); |
|
f.seekg(0, f.beg); |
|
|
|
if (int64_t(sz) < 0) { |
|
if (err) { |
|
(*err) += "Invalid file size : " + filepath + |
|
" (does the path point to a directory?)"; |
|
} |
|
return false; |
|
} else if (sz == 0) { |
|
if (err) { |
|
(*err) += "File is empty : " + filepath + "\n"; |
|
} |
|
return false; |
|
} |
|
|
|
out->resize(sz); |
|
f.read(reinterpret_cast<char *>(&out->at(0)), |
|
static_cast<std::streamsize>(sz)); |
|
|
|
return true; |
|
#endif |
|
} |
|
|
|
bool WriteWholeFile(std::string *err, const std::string &filepath, |
|
const std::vector<unsigned char> &contents, void *) { |
|
#ifdef _WIN32 |
|
#if defined(__GLIBCXX__) // mingw |
|
int file_descriptor = _wopen(UTF8ToWchar(filepath).c_str(), |
|
_O_CREAT | _O_WRONLY | _O_TRUNC | _O_BINARY); |
|
__gnu_cxx::stdio_filebuf<char> wfile_buf( |
|
file_descriptor, std::ios_base::out | std::ios_base::binary); |
|
std::ostream f(&wfile_buf); |
|
#elif defined(_MSC_VER) |
|
std::ofstream f(UTF8ToWchar(filepath).c_str(), std::ofstream::binary); |
|
#else // clang? |
|
std::ofstream f(filepath.c_str(), std::ofstream::binary); |
|
#endif |
|
#else |
|
std::ofstream f(filepath.c_str(), std::ofstream::binary); |
|
#endif |
|
if (!f) { |
|
if (err) { |
|
(*err) += "File open error for writing : " + filepath + "\n"; |
|
} |
|
return false; |
|
} |
|
|
|
f.write(reinterpret_cast<const char *>(&contents.at(0)), |
|
static_cast<std::streamsize>(contents.size())); |
|
if (!f) { |
|
if (err) { |
|
(*err) += "File write error: " + filepath + "\n"; |
|
} |
|
return false; |
|
} |
|
|
|
return true; |
|
} |
|
|
|
#endif // TINYGLTF_NO_FS |
|
|
|
static std::string MimeToExt(const std::string &mimeType) { |
|
if (mimeType == "image/jpeg") { |
|
return "jpg"; |
|
} else if (mimeType == "image/png") { |
|
return "png"; |
|
} else if (mimeType == "image/bmp") { |
|
return "bmp"; |
|
} else if (mimeType == "image/gif") { |
|
return "gif"; |
|
} |
|
|
|
return ""; |
|
} |
|
|
|
static void UpdateImageObject(Image &image, std::string &baseDir, int index, |
|
bool embedImages, |
|
WriteImageDataFunction *WriteImageData = nullptr, |
|
void *user_data = nullptr) { |
|
std::string filename; |
|
std::string ext; |
|
// If image has uri, use it it as a filename |
|
if (image.uri.size()) { |
|
filename = GetBaseFilename(image.uri); |
|
ext = GetFilePathExtension(filename); |
|
} else if (image.bufferView != -1) { |
|
// If there's no URI and the data exists in a buffer, |
|
// don't change properties or write images |
|
} else if (image.name.size()) { |
|
ext = MimeToExt(image.mimeType); |
|
// Otherwise use name as filename |
|
filename = image.name + "." + ext; |
|
} else { |
|
ext = MimeToExt(image.mimeType); |
|
// Fallback to index of image as filename |
|
filename = std::to_string(index) + "." + ext; |
|
} |
|
|
|
// If callback is set, modify image data object |
|
if (*WriteImageData != nullptr && !filename.empty()) { |
|
std::string uri; |
|
(*WriteImageData)(&baseDir, &filename, &image, embedImages, user_data); |
|
} |
|
} |
|
|
|
bool IsDataURI(const std::string &in) { |
|
std::string header = "data:application/octet-stream;base64,"; |
|
if (in.find(header) == 0) { |
|
return true; |
|
} |
|
|
|
header = "data:image/jpeg;base64,"; |
|
if (in.find(header) == 0) { |
|
return true; |
|
} |
|
|
|
header = "data:image/png;base64,"; |
|
if (in.find(header) == 0) { |
|
return true; |
|
} |
|
|
|
header = "data:image/bmp;base64,"; |
|
if (in.find(header) == 0) { |
|
return true; |
|
} |
|
|
|
header = "data:image/gif;base64,"; |
|
if (in.find(header) == 0) { |
|
return true; |
|
} |
|
|
|
header = "data:text/plain;base64,"; |
|
if (in.find(header) == 0) { |
|
return true; |
|
} |
|
|
|
header = "data:application/gltf-buffer;base64,"; |
|
if (in.find(header) == 0) { |
|
return true; |
|
} |
|
|
|
return false; |
|
} |
|
|
|
bool DecodeDataURI(std::vector<unsigned char> *out, std::string &mime_type, |
|
const std::string &in, size_t reqBytes, bool checkSize) { |
|
std::string header = "data:application/octet-stream;base64,"; |
|
std::string data; |
|
if (in.find(header) == 0) { |
|
data = base64_decode(in.substr(header.size())); // cut mime string. |
|
} |
|
|
|
if (data.empty()) { |
|
header = "data:image/jpeg;base64,"; |
|
if (in.find(header) == 0) { |
|
mime_type = "image/jpeg"; |
|
data = base64_decode(in.substr(header.size())); // cut mime string. |
|
} |
|
} |
|
|
|
if (data.empty()) { |
|
header = "data:image/png;base64,"; |
|
if (in.find(header) == 0) { |
|
mime_type = "image/png"; |
|
data = base64_decode(in.substr(header.size())); // cut mime string. |
|
} |
|
} |
|
|
|
if (data.empty()) { |
|
header = "data:image/bmp;base64,"; |
|
if (in.find(header) == 0) { |
|
mime_type = "image/bmp"; |
|
data = base64_decode(in.substr(header.size())); // cut mime string. |
|
} |
|
} |
|
|
|
if (data.empty()) { |
|
header = "data:image/gif;base64,"; |
|
if (in.find(header) == 0) { |
|
mime_type = "image/gif"; |
|
data = base64_decode(in.substr(header.size())); // cut mime string. |
|
} |
|
} |
|
|
|
if (data.empty()) { |
|
header = "data:text/plain;base64,"; |
|
if (in.find(header) == 0) { |
|
mime_type = "text/plain"; |
|
data = base64_decode(in.substr(header.size())); |
|
} |
|
} |
|
|
|
if (data.empty()) { |
|
header = "data:application/gltf-buffer;base64,"; |
|
if (in.find(header) == 0) { |
|
data = base64_decode(in.substr(header.size())); |
|
} |
|
} |
|
|
|
// TODO(syoyo): Allow empty buffer? #229 |
|
if (data.empty()) { |
|
return false; |
|
} |
|
|
|
if (checkSize) { |
|
if (data.size() != reqBytes) { |
|
return false; |
|
} |
|
out->resize(reqBytes); |
|
} else { |
|
out->resize(data.size()); |
|
} |
|
std::copy(data.begin(), data.end(), out->begin()); |
|
return true; |
|
} |
|
|
|
namespace { |
|
bool GetInt(const json &o, int &val) { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
if (!o.IsDouble()) { |
|
if (o.IsInt()) { |
|
val = o.GetInt(); |
|
return true; |
|
} else if (o.IsUint()) { |
|
val = static_cast<int>(o.GetUint()); |
|
return true; |
|
} else if (o.IsInt64()) { |
|
val = static_cast<int>(o.GetInt64()); |
|
return true; |
|
} else if (o.IsUint64()) { |
|
val = static_cast<int>(o.GetUint64()); |
|
return true; |
|
} |
|
} |
|
|
|
return false; |
|
#else |
|
auto type = o.type(); |
|
|
|
if ((type == json::value_t::number_integer) || |
|
(type == json::value_t::number_unsigned)) { |
|
val = static_cast<int>(o.get<int64_t>()); |
|
return true; |
|
} |
|
|
|
return false; |
|
#endif |
|
} |
|
|
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
bool GetDouble(const json &o, double &val) { |
|
if (o.IsDouble()) { |
|
val = o.GetDouble(); |
|
return true; |
|
} |
|
|
|
return false; |
|
} |
|
#endif |
|
|
|
bool GetNumber(const json &o, double &val) { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
if (o.IsNumber()) { |
|
val = o.GetDouble(); |
|
return true; |
|
} |
|
|
|
return false; |
|
#else |
|
if (o.is_number()) { |
|
val = o.get<double>(); |
|
return true; |
|
} |
|
|
|
return false; |
|
#endif |
|
} |
|
|
|
bool GetString(const json &o, std::string &val) { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
if (o.IsString()) { |
|
val = o.GetString(); |
|
return true; |
|
} |
|
|
|
return false; |
|
#else |
|
if (o.type() == json::value_t::string) { |
|
val = o.get<std::string>(); |
|
return true; |
|
} |
|
|
|
return false; |
|
#endif |
|
} |
|
|
|
bool IsArray(const json &o) { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
return o.IsArray(); |
|
#else |
|
return o.is_array(); |
|
#endif |
|
} |
|
|
|
json_const_array_iterator ArrayBegin(const json &o) { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
return o.Begin(); |
|
#else |
|
return o.begin(); |
|
#endif |
|
} |
|
|
|
json_const_array_iterator ArrayEnd(const json &o) { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
return o.End(); |
|
#else |
|
return o.end(); |
|
#endif |
|
} |
|
|
|
bool IsObject(const json &o) { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
return o.IsObject(); |
|
#else |
|
return o.is_object(); |
|
#endif |
|
} |
|
|
|
json_const_iterator ObjectBegin(const json &o) { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
return o.MemberBegin(); |
|
#else |
|
return o.begin(); |
|
#endif |
|
} |
|
|
|
json_const_iterator ObjectEnd(const json &o) { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
return o.MemberEnd(); |
|
#else |
|
return o.end(); |
|
#endif |
|
} |
|
|
|
// Making this a const char* results in a pointer to a temporary when |
|
// TINYGLTF_USE_RAPIDJSON is off. |
|
std::string GetKey(json_const_iterator &it) { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
return it->name.GetString(); |
|
#else |
|
return it.key().c_str(); |
|
#endif |
|
} |
|
|
|
bool FindMember(const json &o, const char *member, json_const_iterator &it) { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
if (!o.IsObject()) { |
|
return false; |
|
} |
|
it = o.FindMember(member); |
|
return it != o.MemberEnd(); |
|
#else |
|
it = o.find(member); |
|
return it != o.end(); |
|
#endif |
|
} |
|
|
|
const json &GetValue(json_const_iterator &it) { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
return it->value; |
|
#else |
|
return it.value(); |
|
#endif |
|
} |
|
|
|
std::string JsonToString(const json &o, int spacing = -1) { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
using namespace rapidjson; |
|
StringBuffer buffer; |
|
if (spacing == -1) { |
|
Writer<StringBuffer> writer(buffer); |
|
o.Accept(writer); |
|
} else { |
|
PrettyWriter<StringBuffer> writer(buffer); |
|
writer.SetIndent(' ', uint32_t(spacing)); |
|
o.Accept(writer); |
|
} |
|
return buffer.GetString(); |
|
#else |
|
return o.dump(spacing); |
|
#endif |
|
} |
|
|
|
} // namespace |
|
|
|
static bool ParseJsonAsValue(Value *ret, const json &o) { |
|
Value val{}; |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
using rapidjson::Type; |
|
switch (o.GetType()) { |
|
case Type::kObjectType: { |
|
Value::Object value_object; |
|
for (auto it = o.MemberBegin(); it != o.MemberEnd(); ++it) { |
|
Value entry; |
|
ParseJsonAsValue(&entry, it->value); |
|
if (entry.Type() != NULL_TYPE) |
|
value_object.emplace(GetKey(it), std::move(entry)); |
|
} |
|
if (value_object.size() > 0) val = Value(std::move(value_object)); |
|
} break; |
|
case Type::kArrayType: { |
|
Value::Array value_array; |
|
value_array.reserve(o.Size()); |
|
for (auto it = o.Begin(); it != o.End(); ++it) { |
|
Value entry; |
|
ParseJsonAsValue(&entry, *it); |
|
if (entry.Type() != NULL_TYPE) |
|
value_array.emplace_back(std::move(entry)); |
|
} |
|
if (value_array.size() > 0) val = Value(std::move(value_array)); |
|
} break; |
|
case Type::kStringType: |
|
val = Value(std::string(o.GetString())); |
|
break; |
|
case Type::kFalseType: |
|
case Type::kTrueType: |
|
val = Value(o.GetBool()); |
|
break; |
|
case Type::kNumberType: |
|
if (!o.IsDouble()) { |
|
int i = 0; |
|
GetInt(o, i); |
|
val = Value(i); |
|
} else { |
|
double d = 0.0; |
|
GetDouble(o, d); |
|
val = Value(d); |
|
} |
|
break; |
|
case Type::kNullType: |
|
break; |
|
// all types are covered, so no `case default` |
|
} |
|
#else |
|
switch (o.type()) { |
|
case json::value_t::object: { |
|
Value::Object value_object; |
|
for (auto it = o.begin(); it != o.end(); it++) { |
|
Value entry; |
|
ParseJsonAsValue(&entry, it.value()); |
|
if (entry.Type() != NULL_TYPE) |
|
value_object.emplace(it.key(), std::move(entry)); |
|
} |
|
if (value_object.size() > 0) val = Value(std::move(value_object)); |
|
} break; |
|
case json::value_t::array: { |
|
Value::Array value_array; |
|
value_array.reserve(o.size()); |
|
for (auto it = o.begin(); it != o.end(); it++) { |
|
Value entry; |
|
ParseJsonAsValue(&entry, it.value()); |
|
if (entry.Type() != NULL_TYPE) |
|
value_array.emplace_back(std::move(entry)); |
|
} |
|
if (value_array.size() > 0) val = Value(std::move(value_array)); |
|
} break; |
|
case json::value_t::string: |
|
val = Value(o.get<std::string>()); |
|
break; |
|
case json::value_t::boolean: |
|
val = Value(o.get<bool>()); |
|
break; |
|
case json::value_t::number_integer: |
|
case json::value_t::number_unsigned: |
|
val = Value(static_cast<int>(o.get<int64_t>())); |
|
break; |
|
case json::value_t::number_float: |
|
val = Value(o.get<double>()); |
|
break; |
|
case json::value_t::null: |
|
case json::value_t::discarded: |
|
// default: |
|
break; |
|
} |
|
#endif |
|
if (ret) *ret = std::move(val); |
|
|
|
return val.Type() != NULL_TYPE; |
|
} |
|
|
|
static bool ParseExtrasProperty(Value *ret, const json &o) { |
|
json_const_iterator it; |
|
if (!FindMember(o, "extras", it)) { |
|
return false; |
|
} |
|
|
|
return ParseJsonAsValue(ret, GetValue(it)); |
|
} |
|
|
|
static bool ParseBooleanProperty(bool *ret, std::string *err, const json &o, |
|
const std::string &property, |
|
const bool required, |
|
const std::string &parent_node = "") { |
|
json_const_iterator it; |
|
if (!FindMember(o, property.c_str(), it)) { |
|
if (required) { |
|
if (err) { |
|
(*err) += "'" + property + "' property is missing"; |
|
if (!parent_node.empty()) { |
|
(*err) += " in " + parent_node; |
|
} |
|
(*err) += ".\n"; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
auto &value = GetValue(it); |
|
|
|
bool isBoolean; |
|
bool boolValue = false; |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
isBoolean = value.IsBool(); |
|
if (isBoolean) { |
|
boolValue = value.GetBool(); |
|
} |
|
#else |
|
isBoolean = value.is_boolean(); |
|
if (isBoolean) { |
|
boolValue = value.get<bool>(); |
|
} |
|
#endif |
|
if (!isBoolean) { |
|
if (required) { |
|
if (err) { |
|
(*err) += "'" + property + "' property is not a bool type.\n"; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
if (ret) { |
|
(*ret) = boolValue; |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseIntegerProperty(int *ret, std::string *err, const json &o, |
|
const std::string &property, |
|
const bool required, |
|
const std::string &parent_node = "") { |
|
json_const_iterator it; |
|
if (!FindMember(o, property.c_str(), it)) { |
|
if (required) { |
|
if (err) { |
|
(*err) += "'" + property + "' property is missing"; |
|
if (!parent_node.empty()) { |
|
(*err) += " in " + parent_node; |
|
} |
|
(*err) += ".\n"; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
int intValue; |
|
bool isInt = GetInt(GetValue(it), intValue); |
|
if (!isInt) { |
|
if (required) { |
|
if (err) { |
|
(*err) += "'" + property + "' property is not an integer type.\n"; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
if (ret) { |
|
(*ret) = intValue; |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseUnsignedProperty(size_t *ret, std::string *err, const json &o, |
|
const std::string &property, |
|
const bool required, |
|
const std::string &parent_node = "") { |
|
json_const_iterator it; |
|
if (!FindMember(o, property.c_str(), it)) { |
|
if (required) { |
|
if (err) { |
|
(*err) += "'" + property + "' property is missing"; |
|
if (!parent_node.empty()) { |
|
(*err) += " in " + parent_node; |
|
} |
|
(*err) += ".\n"; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
auto &value = GetValue(it); |
|
|
|
size_t uValue = 0; |
|
bool isUValue; |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
isUValue = false; |
|
if (value.IsUint()) { |
|
uValue = value.GetUint(); |
|
isUValue = true; |
|
} else if (value.IsUint64()) { |
|
uValue = value.GetUint64(); |
|
isUValue = true; |
|
} |
|
#else |
|
isUValue = value.is_number_unsigned(); |
|
if (isUValue) { |
|
uValue = value.get<size_t>(); |
|
} |
|
#endif |
|
if (!isUValue) { |
|
if (required) { |
|
if (err) { |
|
(*err) += "'" + property + "' property is not a positive integer.\n"; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
if (ret) { |
|
(*ret) = uValue; |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseNumberProperty(double *ret, std::string *err, const json &o, |
|
const std::string &property, |
|
const bool required, |
|
const std::string &parent_node = "") { |
|
json_const_iterator it; |
|
|
|
if (!FindMember(o, property.c_str(), it)) { |
|
if (required) { |
|
if (err) { |
|
(*err) += "'" + property + "' property is missing"; |
|
if (!parent_node.empty()) { |
|
(*err) += " in " + parent_node; |
|
} |
|
(*err) += ".\n"; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
double numberValue; |
|
bool isNumber = GetNumber(GetValue(it), numberValue); |
|
|
|
if (!isNumber) { |
|
if (required) { |
|
if (err) { |
|
(*err) += "'" + property + "' property is not a number type.\n"; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
if (ret) { |
|
(*ret) = numberValue; |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseNumberArrayProperty(std::vector<double> *ret, std::string *err, |
|
const json &o, const std::string &property, |
|
bool required, |
|
const std::string &parent_node = "") { |
|
json_const_iterator it; |
|
if (!FindMember(o, property.c_str(), it)) { |
|
if (required) { |
|
if (err) { |
|
(*err) += "'" + property + "' property is missing"; |
|
if (!parent_node.empty()) { |
|
(*err) += " in " + parent_node; |
|
} |
|
(*err) += ".\n"; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
if (!IsArray(GetValue(it))) { |
|
if (required) { |
|
if (err) { |
|
(*err) += "'" + property + "' property is not an array"; |
|
if (!parent_node.empty()) { |
|
(*err) += " in " + parent_node; |
|
} |
|
(*err) += ".\n"; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
ret->clear(); |
|
auto end = ArrayEnd(GetValue(it)); |
|
for (auto i = ArrayBegin(GetValue(it)); i != end; ++i) { |
|
double numberValue; |
|
const bool isNumber = GetNumber(*i, numberValue); |
|
if (!isNumber) { |
|
if (required) { |
|
if (err) { |
|
(*err) += "'" + property + "' property is not a number.\n"; |
|
if (!parent_node.empty()) { |
|
(*err) += " in " + parent_node; |
|
} |
|
(*err) += ".\n"; |
|
} |
|
} |
|
return false; |
|
} |
|
ret->push_back(numberValue); |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseIntegerArrayProperty(std::vector<int> *ret, std::string *err, |
|
const json &o, |
|
const std::string &property, |
|
bool required, |
|
const std::string &parent_node = "") { |
|
json_const_iterator it; |
|
if (!FindMember(o, property.c_str(), it)) { |
|
if (required) { |
|
if (err) { |
|
(*err) += "'" + property + "' property is missing"; |
|
if (!parent_node.empty()) { |
|
(*err) += " in " + parent_node; |
|
} |
|
(*err) += ".\n"; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
if (!IsArray(GetValue(it))) { |
|
if (required) { |
|
if (err) { |
|
(*err) += "'" + property + "' property is not an array"; |
|
if (!parent_node.empty()) { |
|
(*err) += " in " + parent_node; |
|
} |
|
(*err) += ".\n"; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
ret->clear(); |
|
auto end = ArrayEnd(GetValue(it)); |
|
for (auto i = ArrayBegin(GetValue(it)); i != end; ++i) { |
|
int numberValue; |
|
bool isNumber = GetInt(*i, numberValue); |
|
if (!isNumber) { |
|
if (required) { |
|
if (err) { |
|
(*err) += "'" + property + "' property is not an integer type.\n"; |
|
if (!parent_node.empty()) { |
|
(*err) += " in " + parent_node; |
|
} |
|
(*err) += ".\n"; |
|
} |
|
} |
|
return false; |
|
} |
|
ret->push_back(numberValue); |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseStringProperty( |
|
std::string *ret, std::string *err, const json &o, |
|
const std::string &property, bool required, |
|
const std::string &parent_node = std::string()) { |
|
json_const_iterator it; |
|
if (!FindMember(o, property.c_str(), it)) { |
|
if (required) { |
|
if (err) { |
|
(*err) += "'" + property + "' property is missing"; |
|
if (parent_node.empty()) { |
|
(*err) += ".\n"; |
|
} else { |
|
(*err) += " in `" + parent_node + "'.\n"; |
|
} |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
std::string strValue; |
|
if (!GetString(GetValue(it), strValue)) { |
|
if (required) { |
|
if (err) { |
|
(*err) += "'" + property + "' property is not a string type.\n"; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
if (ret) { |
|
(*ret) = std::move(strValue); |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseStringIntegerProperty(std::map<std::string, int> *ret, |
|
std::string *err, const json &o, |
|
const std::string &property, |
|
bool required, |
|
const std::string &parent = "") { |
|
json_const_iterator it; |
|
if (!FindMember(o, property.c_str(), it)) { |
|
if (required) { |
|
if (err) { |
|
if (!parent.empty()) { |
|
(*err) += |
|
"'" + property + "' property is missing in " + parent + ".\n"; |
|
} else { |
|
(*err) += "'" + property + "' property is missing.\n"; |
|
} |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
const json &dict = GetValue(it); |
|
|
|
// Make sure we are dealing with an object / dictionary. |
|
if (!IsObject(dict)) { |
|
if (required) { |
|
if (err) { |
|
(*err) += "'" + property + "' property is not an object.\n"; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
ret->clear(); |
|
|
|
json_const_iterator dictIt(ObjectBegin(dict)); |
|
json_const_iterator dictItEnd(ObjectEnd(dict)); |
|
|
|
for (; dictIt != dictItEnd; ++dictIt) { |
|
int intVal; |
|
if (!GetInt(GetValue(dictIt), intVal)) { |
|
if (required) { |
|
if (err) { |
|
(*err) += "'" + property + "' value is not an integer type.\n"; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
// Insert into the list. |
|
(*ret)[GetKey(dictIt)] = intVal; |
|
} |
|
return true; |
|
} |
|
|
|
static bool ParseJSONProperty(std::map<std::string, double> *ret, |
|
std::string *err, const json &o, |
|
const std::string &property, bool required) { |
|
json_const_iterator it; |
|
if (!FindMember(o, property.c_str(), it)) { |
|
if (required) { |
|
if (err) { |
|
(*err) += "'" + property + "' property is missing. \n'"; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
const json &obj = GetValue(it); |
|
|
|
if (!IsObject(obj)) { |
|
if (required) { |
|
if (err) { |
|
(*err) += "'" + property + "' property is not a JSON object.\n"; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
ret->clear(); |
|
|
|
json_const_iterator it2(ObjectBegin(obj)); |
|
json_const_iterator itEnd(ObjectEnd(obj)); |
|
for (; it2 != itEnd; ++it2) { |
|
double numVal; |
|
if (GetNumber(GetValue(it2), numVal)) |
|
ret->emplace(std::string(GetKey(it2)), numVal); |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseParameterProperty(Parameter *param, std::string *err, |
|
const json &o, const std::string &prop, |
|
bool required) { |
|
// A parameter value can either be a string or an array of either a boolean or |
|
// a number. Booleans of any kind aren't supported here. Granted, it |
|
// complicates the Parameter structure and breaks it semantically in the sense |
|
// that the client probably works off the assumption that if the string is |
|
// empty the vector is used, etc. Would a tagged union work? |
|
if (ParseStringProperty(¶m->string_value, err, o, prop, false)) { |
|
// Found string property. |
|
return true; |
|
} else if (ParseNumberArrayProperty(¶m->number_array, err, o, prop, |
|
false)) { |
|
// Found a number array. |
|
return true; |
|
} else if (ParseNumberProperty(¶m->number_value, err, o, prop, false)) { |
|
return param->has_number_value = true; |
|
} else if (ParseJSONProperty(¶m->json_double_value, err, o, prop, |
|
false)) { |
|
return true; |
|
} else if (ParseBooleanProperty(¶m->bool_value, err, o, prop, false)) { |
|
return true; |
|
} else { |
|
if (required) { |
|
if (err) { |
|
(*err) += "parameter must be a string or number / number array.\n"; |
|
} |
|
} |
|
return false; |
|
} |
|
} |
|
|
|
static bool ParseExtensionsProperty(ExtensionMap *ret, std::string *err, |
|
const json &o) { |
|
(void)err; |
|
|
|
json_const_iterator it; |
|
if (!FindMember(o, "extensions", it)) { |
|
return false; |
|
} |
|
|
|
auto &obj = GetValue(it); |
|
if (!IsObject(obj)) { |
|
return false; |
|
} |
|
ExtensionMap extensions; |
|
json_const_iterator extIt = ObjectBegin(obj); // it.value().begin(); |
|
json_const_iterator extEnd = ObjectEnd(obj); |
|
for (; extIt != extEnd; ++extIt) { |
|
auto &itObj = GetValue(extIt); |
|
if (!IsObject(itObj)) continue; |
|
std::string key(GetKey(extIt)); |
|
if (!ParseJsonAsValue(&extensions[key], itObj)) { |
|
if (!key.empty()) { |
|
// create empty object so that an extension object is still of type |
|
// object |
|
extensions[key] = Value{Value::Object{}}; |
|
} |
|
} |
|
} |
|
if (ret) { |
|
(*ret) = std::move(extensions); |
|
} |
|
return true; |
|
} |
|
|
|
static bool ParseAsset(Asset *asset, std::string *err, const json &o, |
|
bool store_original_json_for_extras_and_extensions) { |
|
ParseStringProperty(&asset->version, err, o, "version", true, "Asset"); |
|
ParseStringProperty(&asset->generator, err, o, "generator", false, "Asset"); |
|
ParseStringProperty(&asset->minVersion, err, o, "minVersion", false, "Asset"); |
|
ParseStringProperty(&asset->copyright, err, o, "copyright", false, "Asset"); |
|
|
|
ParseExtensionsProperty(&asset->extensions, err, o); |
|
|
|
// Unity exporter version is added as extra here |
|
ParseExtrasProperty(&(asset->extras), o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
asset->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
asset->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseImage(Image *image, const int image_idx, std::string *err, |
|
std::string *warn, const json &o, |
|
bool store_original_json_for_extras_and_extensions, |
|
const std::string &basedir, FsCallbacks *fs, |
|
LoadImageDataFunction *LoadImageData = nullptr, |
|
void *load_image_user_data = nullptr) { |
|
// A glTF image must either reference a bufferView or an image uri |
|
|
|
// schema says oneOf [`bufferView`, `uri`] |
|
// TODO(syoyo): Check the type of each parameters. |
|
json_const_iterator it; |
|
bool hasBufferView = FindMember(o, "bufferView", it); |
|
bool hasURI = FindMember(o, "uri", it); |
|
|
|
ParseStringProperty(&image->name, err, o, "name", false); |
|
|
|
if (hasBufferView && hasURI) { |
|
// Should not both defined. |
|
if (err) { |
|
(*err) += |
|
"Only one of `bufferView` or `uri` should be defined, but both are " |
|
"defined for image[" + |
|
std::to_string(image_idx) + "] name = \"" + image->name + "\"\n"; |
|
} |
|
return false; |
|
} |
|
|
|
if (!hasBufferView && !hasURI) { |
|
if (err) { |
|
(*err) += "Neither required `bufferView` nor `uri` defined for image[" + |
|
std::to_string(image_idx) + "] name = \"" + image->name + |
|
"\"\n"; |
|
} |
|
return false; |
|
} |
|
|
|
ParseExtensionsProperty(&image->extensions, err, o); |
|
ParseExtrasProperty(&image->extras, o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator eit; |
|
if (FindMember(o, "extensions", eit)) { |
|
image->extensions_json_string = JsonToString(GetValue(eit)); |
|
} |
|
} |
|
{ |
|
json_const_iterator eit; |
|
if (FindMember(o, "extras", eit)) { |
|
image->extras_json_string = JsonToString(GetValue(eit)); |
|
} |
|
} |
|
} |
|
|
|
if (hasBufferView) { |
|
int bufferView = -1; |
|
if (!ParseIntegerProperty(&bufferView, err, o, "bufferView", true)) { |
|
if (err) { |
|
(*err) += "Failed to parse `bufferView` for image[" + |
|
std::to_string(image_idx) + "] name = \"" + image->name + |
|
"\"\n"; |
|
} |
|
return false; |
|
} |
|
|
|
std::string mime_type; |
|
ParseStringProperty(&mime_type, err, o, "mimeType", false); |
|
|
|
int width = 0; |
|
ParseIntegerProperty(&width, err, o, "width", false); |
|
|
|
int height = 0; |
|
ParseIntegerProperty(&height, err, o, "height", false); |
|
|
|
// Just only save some information here. Loading actual image data from |
|
// bufferView is done after this `ParseImage` function. |
|
image->bufferView = bufferView; |
|
image->mimeType = mime_type; |
|
image->width = width; |
|
image->height = height; |
|
|
|
return true; |
|
} |
|
|
|
// Parse URI & Load image data. |
|
|
|
std::string uri; |
|
std::string tmp_err; |
|
if (!ParseStringProperty(&uri, &tmp_err, o, "uri", true)) { |
|
if (err) { |
|
(*err) += "Failed to parse `uri` for image[" + std::to_string(image_idx) + |
|
"] name = \"" + image->name + "\".\n"; |
|
} |
|
return false; |
|
} |
|
|
|
std::vector<unsigned char> img; |
|
|
|
if (IsDataURI(uri)) { |
|
if (!DecodeDataURI(&img, image->mimeType, uri, 0, false)) { |
|
if (err) { |
|
(*err) += "Failed to decode 'uri' for image[" + |
|
std::to_string(image_idx) + "] name = [" + image->name + |
|
"]\n"; |
|
} |
|
return false; |
|
} |
|
} else { |
|
// Assume external file |
|
// Keep texture path (for textures that cannot be decoded) |
|
image->uri = uri; |
|
#ifdef TINYGLTF_NO_EXTERNAL_IMAGE |
|
return true; |
|
#endif |
|
std::string decoded_uri = dlib::urldecode(uri); |
|
if (!LoadExternalFile(&img, err, warn, decoded_uri, basedir, |
|
/* required */ false, /* required bytes */ 0, |
|
/* checksize */ false, fs)) { |
|
if (warn) { |
|
(*warn) += "Failed to load external 'uri' for image[" + |
|
std::to_string(image_idx) + "] name = [" + image->name + |
|
"]\n"; |
|
} |
|
// If the image cannot be loaded, keep uri as image->uri. |
|
return true; |
|
} |
|
|
|
if (img.empty()) { |
|
if (warn) { |
|
(*warn) += "Image data is empty for image[" + |
|
std::to_string(image_idx) + "] name = [" + image->name + |
|
"] \n"; |
|
} |
|
return false; |
|
} |
|
} |
|
|
|
if (*LoadImageData == nullptr) { |
|
if (err) { |
|
(*err) += "No LoadImageData callback specified.\n"; |
|
} |
|
return false; |
|
} |
|
return (*LoadImageData)(image, image_idx, err, warn, 0, 0, &img.at(0), |
|
static_cast<int>(img.size()), load_image_user_data); |
|
} |
|
|
|
static bool ParseTexture(Texture *texture, std::string *err, const json &o, |
|
bool store_original_json_for_extras_and_extensions, |
|
const std::string &basedir) { |
|
(void)basedir; |
|
int sampler = -1; |
|
int source = -1; |
|
ParseIntegerProperty(&sampler, err, o, "sampler", false); |
|
|
|
ParseIntegerProperty(&source, err, o, "source", false); |
|
|
|
texture->sampler = sampler; |
|
texture->source = source; |
|
|
|
ParseExtensionsProperty(&texture->extensions, err, o); |
|
ParseExtrasProperty(&texture->extras, o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
texture->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
texture->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
ParseStringProperty(&texture->name, err, o, "name", false); |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseTextureInfo( |
|
TextureInfo *texinfo, std::string *err, const json &o, |
|
bool store_original_json_for_extras_and_extensions) { |
|
if (texinfo == nullptr) { |
|
return false; |
|
} |
|
|
|
if (!ParseIntegerProperty(&texinfo->index, err, o, "index", |
|
/* required */ true, "TextureInfo")) { |
|
return false; |
|
} |
|
|
|
ParseIntegerProperty(&texinfo->texCoord, err, o, "texCoord", false); |
|
|
|
ParseExtensionsProperty(&texinfo->extensions, err, o); |
|
ParseExtrasProperty(&texinfo->extras, o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
texinfo->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
texinfo->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseNormalTextureInfo( |
|
NormalTextureInfo *texinfo, std::string *err, const json &o, |
|
bool store_original_json_for_extras_and_extensions) { |
|
if (texinfo == nullptr) { |
|
return false; |
|
} |
|
|
|
if (!ParseIntegerProperty(&texinfo->index, err, o, "index", |
|
/* required */ true, "NormalTextureInfo")) { |
|
return false; |
|
} |
|
|
|
ParseIntegerProperty(&texinfo->texCoord, err, o, "texCoord", false); |
|
ParseNumberProperty(&texinfo->scale, err, o, "scale", false); |
|
|
|
ParseExtensionsProperty(&texinfo->extensions, err, o); |
|
ParseExtrasProperty(&texinfo->extras, o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
texinfo->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
texinfo->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseOcclusionTextureInfo( |
|
OcclusionTextureInfo *texinfo, std::string *err, const json &o, |
|
bool store_original_json_for_extras_and_extensions) { |
|
if (texinfo == nullptr) { |
|
return false; |
|
} |
|
|
|
if (!ParseIntegerProperty(&texinfo->index, err, o, "index", |
|
/* required */ true, "NormalTextureInfo")) { |
|
return false; |
|
} |
|
|
|
ParseIntegerProperty(&texinfo->texCoord, err, o, "texCoord", false); |
|
ParseNumberProperty(&texinfo->strength, err, o, "strength", false); |
|
|
|
ParseExtensionsProperty(&texinfo->extensions, err, o); |
|
ParseExtrasProperty(&texinfo->extras, o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
texinfo->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
texinfo->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseBuffer(Buffer *buffer, std::string *err, const json &o, |
|
bool store_original_json_for_extras_and_extensions, |
|
FsCallbacks *fs, const std::string &basedir, |
|
bool is_binary = false, |
|
const unsigned char *bin_data = nullptr, |
|
size_t bin_size = 0) { |
|
size_t byteLength; |
|
if (!ParseUnsignedProperty(&byteLength, err, o, "byteLength", true, |
|
"Buffer")) { |
|
return false; |
|
} |
|
|
|
// In glTF 2.0, uri is not mandatory anymore |
|
buffer->uri.clear(); |
|
ParseStringProperty(&buffer->uri, err, o, "uri", false, "Buffer"); |
|
|
|
// having an empty uri for a non embedded image should not be valid |
|
if (!is_binary && buffer->uri.empty()) { |
|
if (err) { |
|
(*err) += "'uri' is missing from non binary glTF file buffer.\n"; |
|
} |
|
} |
|
|
|
json_const_iterator type; |
|
if (FindMember(o, "type", type)) { |
|
std::string typeStr; |
|
if (GetString(GetValue(type), typeStr)) { |
|
if (typeStr.compare("arraybuffer") == 0) { |
|
// buffer.type = "arraybuffer"; |
|
} |
|
} |
|
} |
|
|
|
if (is_binary) { |
|
// Still binary glTF accepts external dataURI. |
|
if (!buffer->uri.empty()) { |
|
// First try embedded data URI. |
|
if (IsDataURI(buffer->uri)) { |
|
std::string mime_type; |
|
if (!DecodeDataURI(&buffer->data, mime_type, buffer->uri, byteLength, |
|
true)) { |
|
if (err) { |
|
(*err) += |
|
"Failed to decode 'uri' : " + buffer->uri + " in Buffer\n"; |
|
} |
|
return false; |
|
} |
|
} else { |
|
// External .bin file. |
|
std::string decoded_uri = dlib::urldecode(buffer->uri); |
|
if (!LoadExternalFile(&buffer->data, err, /* warn */ nullptr, |
|
decoded_uri, basedir, /* required */ true, |
|
byteLength, /* checkSize */ true, fs)) { |
|
return false; |
|
} |
|
} |
|
} else { |
|
// load data from (embedded) binary data |
|
|
|
if ((bin_size == 0) || (bin_data == nullptr)) { |
|
if (err) { |
|
(*err) += "Invalid binary data in `Buffer'.\n"; |
|
} |
|
return false; |
|
} |
|
|
|
if (byteLength > bin_size) { |
|
if (err) { |
|
std::stringstream ss; |
|
ss << "Invalid `byteLength'. Must be equal or less than binary size: " |
|
"`byteLength' = " |
|
<< byteLength << ", binary size = " << bin_size << std::endl; |
|
(*err) += ss.str(); |
|
} |
|
return false; |
|
} |
|
|
|
// Read buffer data |
|
buffer->data.resize(static_cast<size_t>(byteLength)); |
|
memcpy(&(buffer->data.at(0)), bin_data, static_cast<size_t>(byteLength)); |
|
} |
|
|
|
} else { |
|
if (IsDataURI(buffer->uri)) { |
|
std::string mime_type; |
|
if (!DecodeDataURI(&buffer->data, mime_type, buffer->uri, byteLength, |
|
true)) { |
|
if (err) { |
|
(*err) += "Failed to decode 'uri' : " + buffer->uri + " in Buffer\n"; |
|
} |
|
return false; |
|
} |
|
} else { |
|
// Assume external .bin file. |
|
std::string decoded_uri = dlib::urldecode(buffer->uri); |
|
if (!LoadExternalFile(&buffer->data, err, /* warn */ nullptr, decoded_uri, |
|
basedir, /* required */ true, byteLength, |
|
/* checkSize */ true, fs)) { |
|
return false; |
|
} |
|
} |
|
} |
|
|
|
ParseStringProperty(&buffer->name, err, o, "name", false); |
|
|
|
ParseExtensionsProperty(&buffer->extensions, err, o); |
|
ParseExtrasProperty(&buffer->extras, o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
buffer->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
buffer->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseBufferView( |
|
BufferView *bufferView, std::string *err, const json &o, |
|
bool store_original_json_for_extras_and_extensions) { |
|
int buffer = -1; |
|
if (!ParseIntegerProperty(&buffer, err, o, "buffer", true, "BufferView")) { |
|
return false; |
|
} |
|
|
|
size_t byteOffset = 0; |
|
ParseUnsignedProperty(&byteOffset, err, o, "byteOffset", false); |
|
|
|
size_t byteLength = 1; |
|
if (!ParseUnsignedProperty(&byteLength, err, o, "byteLength", true, |
|
"BufferView")) { |
|
return false; |
|
} |
|
|
|
size_t byteStride = 0; |
|
if (!ParseUnsignedProperty(&byteStride, err, o, "byteStride", false)) { |
|
// Spec says: When byteStride of referenced bufferView is not defined, it |
|
// means that accessor elements are tightly packed, i.e., effective stride |
|
// equals the size of the element. |
|
// We cannot determine the actual byteStride until Accessor are parsed, thus |
|
// set 0(= tightly packed) here(as done in OpenGL's VertexAttribPoiner) |
|
byteStride = 0; |
|
} |
|
|
|
if ((byteStride > 252) || ((byteStride % 4) != 0)) { |
|
if (err) { |
|
std::stringstream ss; |
|
ss << "Invalid `byteStride' value. `byteStride' must be the multiple of " |
|
"4 : " |
|
<< byteStride << std::endl; |
|
|
|
(*err) += ss.str(); |
|
} |
|
return false; |
|
} |
|
|
|
int target = 0; |
|
ParseIntegerProperty(&target, err, o, "target", false); |
|
if ((target == TINYGLTF_TARGET_ARRAY_BUFFER) || |
|
(target == TINYGLTF_TARGET_ELEMENT_ARRAY_BUFFER)) { |
|
// OK |
|
} else { |
|
target = 0; |
|
} |
|
bufferView->target = target; |
|
|
|
ParseStringProperty(&bufferView->name, err, o, "name", false); |
|
|
|
ParseExtensionsProperty(&bufferView->extensions, err, o); |
|
ParseExtrasProperty(&bufferView->extras, o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
bufferView->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
bufferView->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
bufferView->buffer = buffer; |
|
bufferView->byteOffset = byteOffset; |
|
bufferView->byteLength = byteLength; |
|
bufferView->byteStride = byteStride; |
|
return true; |
|
} |
|
|
|
static bool ParseSparseAccessor(Accessor *accessor, std::string *err, |
|
const json &o) { |
|
accessor->sparse.isSparse = true; |
|
|
|
int count = 0; |
|
ParseIntegerProperty(&count, err, o, "count", true); |
|
|
|
json_const_iterator indices_iterator; |
|
json_const_iterator values_iterator; |
|
if (!FindMember(o, "indices", indices_iterator)) { |
|
(*err) = "the sparse object of this accessor doesn't have indices"; |
|
return false; |
|
} |
|
|
|
if (!FindMember(o, "values", values_iterator)) { |
|
(*err) = "the sparse object ob this accessor doesn't have values"; |
|
return false; |
|
} |
|
|
|
const json &indices_obj = GetValue(indices_iterator); |
|
const json &values_obj = GetValue(values_iterator); |
|
|
|
int indices_buffer_view = 0, indices_byte_offset = 0, component_type = 0; |
|
ParseIntegerProperty(&indices_buffer_view, err, indices_obj, "bufferView", |
|
true); |
|
ParseIntegerProperty(&indices_byte_offset, err, indices_obj, "byteOffset", |
|
true); |
|
ParseIntegerProperty(&component_type, err, indices_obj, "componentType", |
|
true); |
|
|
|
int values_buffer_view = 0, values_byte_offset = 0; |
|
ParseIntegerProperty(&values_buffer_view, err, values_obj, "bufferView", |
|
true); |
|
ParseIntegerProperty(&values_byte_offset, err, values_obj, "byteOffset", |
|
true); |
|
|
|
accessor->sparse.count = count; |
|
accessor->sparse.indices.bufferView = indices_buffer_view; |
|
accessor->sparse.indices.byteOffset = indices_byte_offset; |
|
accessor->sparse.indices.componentType = component_type; |
|
accessor->sparse.values.bufferView = values_buffer_view; |
|
accessor->sparse.values.byteOffset = values_byte_offset; |
|
|
|
// todo check these values |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseAccessor(Accessor *accessor, std::string *err, const json &o, |
|
bool store_original_json_for_extras_and_extensions) { |
|
int bufferView = -1; |
|
ParseIntegerProperty(&bufferView, err, o, "bufferView", false, "Accessor"); |
|
|
|
size_t byteOffset = 0; |
|
ParseUnsignedProperty(&byteOffset, err, o, "byteOffset", false, "Accessor"); |
|
|
|
bool normalized = false; |
|
ParseBooleanProperty(&normalized, err, o, "normalized", false, "Accessor"); |
|
|
|
size_t componentType = 0; |
|
if (!ParseUnsignedProperty(&componentType, err, o, "componentType", true, |
|
"Accessor")) { |
|
return false; |
|
} |
|
|
|
size_t count = 0; |
|
if (!ParseUnsignedProperty(&count, err, o, "count", true, "Accessor")) { |
|
return false; |
|
} |
|
|
|
std::string type; |
|
if (!ParseStringProperty(&type, err, o, "type", true, "Accessor")) { |
|
return false; |
|
} |
|
|
|
if (type.compare("SCALAR") == 0) { |
|
accessor->type = TINYGLTF_TYPE_SCALAR; |
|
} else if (type.compare("VEC2") == 0) { |
|
accessor->type = TINYGLTF_TYPE_VEC2; |
|
} else if (type.compare("VEC3") == 0) { |
|
accessor->type = TINYGLTF_TYPE_VEC3; |
|
} else if (type.compare("VEC4") == 0) { |
|
accessor->type = TINYGLTF_TYPE_VEC4; |
|
} else if (type.compare("MAT2") == 0) { |
|
accessor->type = TINYGLTF_TYPE_MAT2; |
|
} else if (type.compare("MAT3") == 0) { |
|
accessor->type = TINYGLTF_TYPE_MAT3; |
|
} else if (type.compare("MAT4") == 0) { |
|
accessor->type = TINYGLTF_TYPE_MAT4; |
|
} else { |
|
std::stringstream ss; |
|
ss << "Unsupported `type` for accessor object. Got \"" << type << "\"\n"; |
|
if (err) { |
|
(*err) += ss.str(); |
|
} |
|
return false; |
|
} |
|
|
|
ParseStringProperty(&accessor->name, err, o, "name", false); |
|
|
|
accessor->minValues.clear(); |
|
accessor->maxValues.clear(); |
|
ParseNumberArrayProperty(&accessor->minValues, err, o, "min", false, |
|
"Accessor"); |
|
|
|
ParseNumberArrayProperty(&accessor->maxValues, err, o, "max", false, |
|
"Accessor"); |
|
|
|
accessor->count = count; |
|
accessor->bufferView = bufferView; |
|
accessor->byteOffset = byteOffset; |
|
accessor->normalized = normalized; |
|
{ |
|
if (componentType >= TINYGLTF_COMPONENT_TYPE_BYTE && |
|
componentType <= TINYGLTF_COMPONENT_TYPE_DOUBLE) { |
|
// OK |
|
accessor->componentType = int(componentType); |
|
} else { |
|
std::stringstream ss; |
|
ss << "Invalid `componentType` in accessor. Got " << componentType |
|
<< "\n"; |
|
if (err) { |
|
(*err) += ss.str(); |
|
} |
|
return false; |
|
} |
|
} |
|
|
|
ParseExtensionsProperty(&(accessor->extensions), err, o); |
|
ParseExtrasProperty(&(accessor->extras), o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
accessor->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
accessor->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
// check if accessor has a "sparse" object: |
|
json_const_iterator iterator; |
|
if (FindMember(o, "sparse", iterator)) { |
|
// here this accessor has a "sparse" subobject |
|
return ParseSparseAccessor(accessor, err, GetValue(iterator)); |
|
} |
|
|
|
return true; |
|
} |
|
|
|
#ifdef TINYGLTF_ENABLE_DRACO |
|
|
|
static void DecodeIndexBuffer(draco::Mesh *mesh, size_t componentSize, |
|
std::vector<uint8_t> &outBuffer) { |
|
if (componentSize == 4) { |
|
assert(sizeof(mesh->face(draco::FaceIndex(0))[0]) == componentSize); |
|
memcpy(outBuffer.data(), &mesh->face(draco::FaceIndex(0))[0], |
|
outBuffer.size()); |
|
} else { |
|
size_t faceStride = componentSize * 3; |
|
for (draco::FaceIndex f(0); f < mesh->num_faces(); ++f) { |
|
const draco::Mesh::Face &face = mesh->face(f); |
|
if (componentSize == 2) { |
|
uint16_t indices[3] = {(uint16_t)face[0].value(), |
|
(uint16_t)face[1].value(), |
|
(uint16_t)face[2].value()}; |
|
memcpy(outBuffer.data() + f.value() * faceStride, &indices[0], |
|
faceStride); |
|
} else { |
|
uint8_t indices[3] = {(uint8_t)face[0].value(), |
|
(uint8_t)face[1].value(), |
|
(uint8_t)face[2].value()}; |
|
memcpy(outBuffer.data() + f.value() * faceStride, &indices[0], |
|
faceStride); |
|
} |
|
} |
|
} |
|
} |
|
|
|
template <typename T> |
|
static bool GetAttributeForAllPoints(draco::Mesh *mesh, |
|
const draco::PointAttribute *pAttribute, |
|
std::vector<uint8_t> &outBuffer) { |
|
size_t byteOffset = 0; |
|
T values[4] = {0, 0, 0, 0}; |
|
for (draco::PointIndex i(0); i < mesh->num_points(); ++i) { |
|
const draco::AttributeValueIndex val_index = pAttribute->mapped_index(i); |
|
if (!pAttribute->ConvertValue<T>(val_index, pAttribute->num_components(), |
|
values)) |
|
return false; |
|
|
|
memcpy(outBuffer.data() + byteOffset, &values[0], |
|
sizeof(T) * pAttribute->num_components()); |
|
byteOffset += sizeof(T) * pAttribute->num_components(); |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool GetAttributeForAllPoints(uint32_t componentType, draco::Mesh *mesh, |
|
const draco::PointAttribute *pAttribute, |
|
std::vector<uint8_t> &outBuffer) { |
|
bool decodeResult = false; |
|
switch (componentType) { |
|
case TINYGLTF_COMPONENT_TYPE_UNSIGNED_BYTE: |
|
decodeResult = |
|
GetAttributeForAllPoints<uint8_t>(mesh, pAttribute, outBuffer); |
|
break; |
|
case TINYGLTF_COMPONENT_TYPE_BYTE: |
|
decodeResult = |
|
GetAttributeForAllPoints<int8_t>(mesh, pAttribute, outBuffer); |
|
break; |
|
case TINYGLTF_COMPONENT_TYPE_UNSIGNED_SHORT: |
|
decodeResult = |
|
GetAttributeForAllPoints<uint16_t>(mesh, pAttribute, outBuffer); |
|
break; |
|
case TINYGLTF_COMPONENT_TYPE_SHORT: |
|
decodeResult = |
|
GetAttributeForAllPoints<int16_t>(mesh, pAttribute, outBuffer); |
|
break; |
|
case TINYGLTF_COMPONENT_TYPE_INT: |
|
decodeResult = |
|
GetAttributeForAllPoints<int32_t>(mesh, pAttribute, outBuffer); |
|
break; |
|
case TINYGLTF_COMPONENT_TYPE_UNSIGNED_INT: |
|
decodeResult = |
|
GetAttributeForAllPoints<uint32_t>(mesh, pAttribute, outBuffer); |
|
break; |
|
case TINYGLTF_COMPONENT_TYPE_FLOAT: |
|
decodeResult = |
|
GetAttributeForAllPoints<float>(mesh, pAttribute, outBuffer); |
|
break; |
|
case TINYGLTF_COMPONENT_TYPE_DOUBLE: |
|
decodeResult = |
|
GetAttributeForAllPoints<double>(mesh, pAttribute, outBuffer); |
|
break; |
|
default: |
|
return false; |
|
} |
|
|
|
return decodeResult; |
|
} |
|
|
|
static bool ParseDracoExtension(Primitive *primitive, Model *model, |
|
std::string *err, |
|
const Value &dracoExtensionValue) { |
|
(void)err; |
|
auto bufferViewValue = dracoExtensionValue.Get("bufferView"); |
|
if (!bufferViewValue.IsInt()) return false; |
|
auto attributesValue = dracoExtensionValue.Get("attributes"); |
|
if (!attributesValue.IsObject()) return false; |
|
|
|
auto attributesObject = attributesValue.Get<Value::Object>(); |
|
int bufferView = bufferViewValue.Get<int>(); |
|
|
|
BufferView &view = model->bufferViews[bufferView]; |
|
Buffer &buffer = model->buffers[view.buffer]; |
|
// BufferView has already been decoded |
|
if (view.dracoDecoded) return true; |
|
view.dracoDecoded = true; |
|
|
|
const char *bufferViewData = |
|
reinterpret_cast<const char *>(buffer.data.data() + view.byteOffset); |
|
size_t bufferViewSize = view.byteLength; |
|
|
|
// decode draco |
|
draco::DecoderBuffer decoderBuffer; |
|
decoderBuffer.Init(bufferViewData, bufferViewSize); |
|
draco::Decoder decoder; |
|
auto decodeResult = decoder.DecodeMeshFromBuffer(&decoderBuffer); |
|
if (!decodeResult.ok()) { |
|
return false; |
|
} |
|
const std::unique_ptr<draco::Mesh> &mesh = decodeResult.value(); |
|
|
|
// create new bufferView for indices |
|
if (primitive->indices >= 0) { |
|
int32_t componentSize = GetComponentSizeInBytes( |
|
model->accessors[primitive->indices].componentType); |
|
Buffer decodedIndexBuffer; |
|
decodedIndexBuffer.data.resize(mesh->num_faces() * 3 * componentSize); |
|
|
|
DecodeIndexBuffer(mesh.get(), componentSize, decodedIndexBuffer.data); |
|
|
|
model->buffers.emplace_back(std::move(decodedIndexBuffer)); |
|
|
|
BufferView decodedIndexBufferView; |
|
decodedIndexBufferView.buffer = int(model->buffers.size() - 1); |
|
decodedIndexBufferView.byteLength = |
|
int(mesh->num_faces() * 3 * componentSize); |
|
decodedIndexBufferView.byteOffset = 0; |
|
decodedIndexBufferView.byteStride = 0; |
|
decodedIndexBufferView.target = TINYGLTF_TARGET_ARRAY_BUFFER; |
|
model->bufferViews.emplace_back(std::move(decodedIndexBufferView)); |
|
|
|
model->accessors[primitive->indices].bufferView = |
|
int(model->bufferViews.size() - 1); |
|
model->accessors[primitive->indices].count = int(mesh->num_faces() * 3); |
|
} |
|
|
|
for (const auto &attribute : attributesObject) { |
|
if (!attribute.second.IsInt()) return false; |
|
auto primitiveAttribute = primitive->attributes.find(attribute.first); |
|
if (primitiveAttribute == primitive->attributes.end()) return false; |
|
|
|
int dracoAttributeIndex = attribute.second.Get<int>(); |
|
const auto pAttribute = mesh->GetAttributeByUniqueId(dracoAttributeIndex); |
|
const auto componentType = |
|
model->accessors[primitiveAttribute->second].componentType; |
|
|
|
// Create a new buffer for this decoded buffer |
|
Buffer decodedBuffer; |
|
size_t bufferSize = mesh->num_points() * pAttribute->num_components() * |
|
GetComponentSizeInBytes(componentType); |
|
decodedBuffer.data.resize(bufferSize); |
|
|
|
if (!GetAttributeForAllPoints(componentType, mesh.get(), pAttribute, |
|
decodedBuffer.data)) |
|
return false; |
|
|
|
model->buffers.emplace_back(std::move(decodedBuffer)); |
|
|
|
BufferView decodedBufferView; |
|
decodedBufferView.buffer = int(model->buffers.size() - 1); |
|
decodedBufferView.byteLength = bufferSize; |
|
decodedBufferView.byteOffset = pAttribute->byte_offset(); |
|
decodedBufferView.byteStride = pAttribute->byte_stride(); |
|
decodedBufferView.target = primitive->indices >= 0 |
|
? TINYGLTF_TARGET_ELEMENT_ARRAY_BUFFER |
|
: TINYGLTF_TARGET_ARRAY_BUFFER; |
|
model->bufferViews.emplace_back(std::move(decodedBufferView)); |
|
|
|
model->accessors[primitiveAttribute->second].bufferView = |
|
int(model->bufferViews.size() - 1); |
|
model->accessors[primitiveAttribute->second].count = |
|
int(mesh->num_points()); |
|
} |
|
|
|
return true; |
|
} |
|
#endif |
|
|
|
static bool ParsePrimitive(Primitive *primitive, Model *model, std::string *err, |
|
const json &o, |
|
bool store_original_json_for_extras_and_extensions) { |
|
int material = -1; |
|
ParseIntegerProperty(&material, err, o, "material", false); |
|
primitive->material = material; |
|
|
|
int mode = TINYGLTF_MODE_TRIANGLES; |
|
ParseIntegerProperty(&mode, err, o, "mode", false); |
|
primitive->mode = mode; // Why only triangled were supported ? |
|
|
|
int indices = -1; |
|
ParseIntegerProperty(&indices, err, o, "indices", false); |
|
primitive->indices = indices; |
|
if (!ParseStringIntegerProperty(&primitive->attributes, err, o, "attributes", |
|
true, "Primitive")) { |
|
return false; |
|
} |
|
|
|
// Look for morph targets |
|
json_const_iterator targetsObject; |
|
if (FindMember(o, "targets", targetsObject) && |
|
IsArray(GetValue(targetsObject))) { |
|
auto targetsObjectEnd = ArrayEnd(GetValue(targetsObject)); |
|
for (json_const_array_iterator i = ArrayBegin(GetValue(targetsObject)); |
|
i != targetsObjectEnd; ++i) { |
|
std::map<std::string, int> targetAttribues; |
|
|
|
const json &dict = *i; |
|
if (IsObject(dict)) { |
|
json_const_iterator dictIt(ObjectBegin(dict)); |
|
json_const_iterator dictItEnd(ObjectEnd(dict)); |
|
|
|
for (; dictIt != dictItEnd; ++dictIt) { |
|
int iVal; |
|
if (GetInt(GetValue(dictIt), iVal)) |
|
targetAttribues[GetKey(dictIt)] = iVal; |
|
} |
|
primitive->targets.emplace_back(std::move(targetAttribues)); |
|
} |
|
} |
|
} |
|
|
|
ParseExtrasProperty(&(primitive->extras), o); |
|
ParseExtensionsProperty(&primitive->extensions, err, o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
primitive->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
primitive->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
#ifdef TINYGLTF_ENABLE_DRACO |
|
auto dracoExtension = |
|
primitive->extensions.find("KHR_draco_mesh_compression"); |
|
if (dracoExtension != primitive->extensions.end()) { |
|
ParseDracoExtension(primitive, model, err, dracoExtension->second); |
|
} |
|
#else |
|
(void)model; |
|
#endif |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseMesh(Mesh *mesh, Model *model, std::string *err, const json &o, |
|
bool store_original_json_for_extras_and_extensions) { |
|
ParseStringProperty(&mesh->name, err, o, "name", false); |
|
|
|
mesh->primitives.clear(); |
|
json_const_iterator primObject; |
|
if (FindMember(o, "primitives", primObject) && |
|
IsArray(GetValue(primObject))) { |
|
json_const_array_iterator primEnd = ArrayEnd(GetValue(primObject)); |
|
for (json_const_array_iterator i = ArrayBegin(GetValue(primObject)); |
|
i != primEnd; ++i) { |
|
Primitive primitive; |
|
if (ParsePrimitive(&primitive, model, err, *i, |
|
store_original_json_for_extras_and_extensions)) { |
|
// Only add the primitive if the parsing succeeds. |
|
mesh->primitives.emplace_back(std::move(primitive)); |
|
} |
|
} |
|
} |
|
|
|
// Should probably check if has targets and if dimensions fit |
|
ParseNumberArrayProperty(&mesh->weights, err, o, "weights", false); |
|
|
|
ParseExtensionsProperty(&mesh->extensions, err, o); |
|
ParseExtrasProperty(&(mesh->extras), o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
mesh->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
mesh->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseNode(Node *node, std::string *err, const json &o, |
|
bool store_original_json_for_extras_and_extensions) { |
|
ParseStringProperty(&node->name, err, o, "name", false); |
|
|
|
int skin = -1; |
|
ParseIntegerProperty(&skin, err, o, "skin", false); |
|
node->skin = skin; |
|
|
|
// Matrix and T/R/S are exclusive |
|
if (!ParseNumberArrayProperty(&node->matrix, err, o, "matrix", false)) { |
|
ParseNumberArrayProperty(&node->rotation, err, o, "rotation", false); |
|
ParseNumberArrayProperty(&node->scale, err, o, "scale", false); |
|
ParseNumberArrayProperty(&node->translation, err, o, "translation", false); |
|
} |
|
|
|
int camera = -1; |
|
ParseIntegerProperty(&camera, err, o, "camera", false); |
|
node->camera = camera; |
|
|
|
int mesh = -1; |
|
ParseIntegerProperty(&mesh, err, o, "mesh", false); |
|
node->mesh = mesh; |
|
|
|
node->children.clear(); |
|
ParseIntegerArrayProperty(&node->children, err, o, "children", false); |
|
|
|
ParseNumberArrayProperty(&node->weights, err, o, "weights", false); |
|
|
|
ParseExtensionsProperty(&node->extensions, err, o); |
|
ParseExtrasProperty(&(node->extras), o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
node->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
node->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParsePbrMetallicRoughness( |
|
PbrMetallicRoughness *pbr, std::string *err, const json &o, |
|
bool store_original_json_for_extras_and_extensions) { |
|
if (pbr == nullptr) { |
|
return false; |
|
} |
|
|
|
std::vector<double> baseColorFactor; |
|
if (ParseNumberArrayProperty(&baseColorFactor, err, o, "baseColorFactor", |
|
/* required */ false)) { |
|
if (baseColorFactor.size() != 4) { |
|
if (err) { |
|
(*err) += |
|
"Array length of `baseColorFactor` parameter in " |
|
"pbrMetallicRoughness must be 4, but got " + |
|
std::to_string(baseColorFactor.size()) + "\n"; |
|
} |
|
return false; |
|
} |
|
pbr->baseColorFactor = baseColorFactor; |
|
} |
|
|
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "baseColorTexture", it)) { |
|
ParseTextureInfo(&pbr->baseColorTexture, err, GetValue(it), |
|
store_original_json_for_extras_and_extensions); |
|
} |
|
} |
|
|
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "metallicRoughnessTexture", it)) { |
|
ParseTextureInfo(&pbr->metallicRoughnessTexture, err, GetValue(it), |
|
store_original_json_for_extras_and_extensions); |
|
} |
|
} |
|
|
|
ParseNumberProperty(&pbr->metallicFactor, err, o, "metallicFactor", false); |
|
ParseNumberProperty(&pbr->roughnessFactor, err, o, "roughnessFactor", false); |
|
|
|
ParseExtensionsProperty(&pbr->extensions, err, o); |
|
ParseExtrasProperty(&pbr->extras, o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
pbr->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
pbr->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseMaterial(Material *material, std::string *err, const json &o, |
|
bool store_original_json_for_extras_and_extensions) { |
|
ParseStringProperty(&material->name, err, o, "name", /* required */ false); |
|
|
|
if (ParseNumberArrayProperty(&material->emissiveFactor, err, o, |
|
"emissiveFactor", |
|
/* required */ false)) { |
|
if (material->emissiveFactor.size() != 3) { |
|
if (err) { |
|
(*err) += |
|
"Array length of `emissiveFactor` parameter in " |
|
"material must be 3, but got " + |
|
std::to_string(material->emissiveFactor.size()) + "\n"; |
|
} |
|
return false; |
|
} |
|
} else { |
|
// fill with default values |
|
material->emissiveFactor = {0.0, 0.0, 0.0}; |
|
} |
|
|
|
ParseStringProperty(&material->alphaMode, err, o, "alphaMode", |
|
/* required */ false); |
|
ParseNumberProperty(&material->alphaCutoff, err, o, "alphaCutoff", |
|
/* required */ false); |
|
ParseBooleanProperty(&material->doubleSided, err, o, "doubleSided", |
|
/* required */ false); |
|
|
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "pbrMetallicRoughness", it)) { |
|
ParsePbrMetallicRoughness(&material->pbrMetallicRoughness, err, |
|
GetValue(it), |
|
store_original_json_for_extras_and_extensions); |
|
} |
|
} |
|
|
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "normalTexture", it)) { |
|
ParseNormalTextureInfo(&material->normalTexture, err, GetValue(it), |
|
store_original_json_for_extras_and_extensions); |
|
} |
|
} |
|
|
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "occlusionTexture", it)) { |
|
ParseOcclusionTextureInfo(&material->occlusionTexture, err, GetValue(it), |
|
store_original_json_for_extras_and_extensions); |
|
} |
|
} |
|
|
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "emissiveTexture", it)) { |
|
ParseTextureInfo(&material->emissiveTexture, err, GetValue(it), |
|
store_original_json_for_extras_and_extensions); |
|
} |
|
} |
|
|
|
// Old code path. For backward compatibility, we still store material values |
|
// as Parameter. This will create duplicated information for |
|
// example(pbrMetallicRoughness), but should be negligible in terms of memory |
|
// consumption. |
|
// TODO(syoyo): Remove in the next major release. |
|
material->values.clear(); |
|
material->additionalValues.clear(); |
|
|
|
json_const_iterator it(ObjectBegin(o)); |
|
json_const_iterator itEnd(ObjectEnd(o)); |
|
|
|
for (; it != itEnd; ++it) { |
|
std::string key(GetKey(it)); |
|
if (key == "pbrMetallicRoughness") { |
|
if (IsObject(GetValue(it))) { |
|
const json &values_object = GetValue(it); |
|
|
|
json_const_iterator itVal(ObjectBegin(values_object)); |
|
json_const_iterator itValEnd(ObjectEnd(values_object)); |
|
|
|
for (; itVal != itValEnd; ++itVal) { |
|
Parameter param; |
|
if (ParseParameterProperty(¶m, err, values_object, GetKey(itVal), |
|
false)) { |
|
material->values.emplace(GetKey(itVal), std::move(param)); |
|
} |
|
} |
|
} |
|
} else if (key == "extensions" || key == "extras") { |
|
// done later, skip, otherwise poorly parsed contents will be saved in the |
|
// parametermap and serialized again later |
|
} else { |
|
Parameter param; |
|
if (ParseParameterProperty(¶m, err, o, key, false)) { |
|
// names of materials have already been parsed. Putting it in this map |
|
// doesn't correctly reflext the glTF specification |
|
if (key != "name") |
|
material->additionalValues.emplace(std::move(key), std::move(param)); |
|
} |
|
} |
|
} |
|
|
|
material->extensions.clear(); |
|
ParseExtensionsProperty(&material->extensions, err, o); |
|
ParseExtrasProperty(&(material->extras), o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator eit; |
|
if (FindMember(o, "extensions", eit)) { |
|
material->extensions_json_string = JsonToString(GetValue(eit)); |
|
} |
|
} |
|
{ |
|
json_const_iterator eit; |
|
if (FindMember(o, "extras", eit)) { |
|
material->extras_json_string = JsonToString(GetValue(eit)); |
|
} |
|
} |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseAnimationChannel( |
|
AnimationChannel *channel, std::string *err, const json &o, |
|
bool store_original_json_for_extras_and_extensions) { |
|
int samplerIndex = -1; |
|
int targetIndex = -1; |
|
if (!ParseIntegerProperty(&samplerIndex, err, o, "sampler", true, |
|
"AnimationChannel")) { |
|
if (err) { |
|
(*err) += "`sampler` field is missing in animation channels\n"; |
|
} |
|
return false; |
|
} |
|
|
|
json_const_iterator targetIt; |
|
if (FindMember(o, "target", targetIt) && IsObject(GetValue(targetIt))) { |
|
const json &target_object = GetValue(targetIt); |
|
|
|
if (!ParseIntegerProperty(&targetIndex, err, target_object, "node", true)) { |
|
if (err) { |
|
(*err) += "`node` field is missing in animation.channels.target\n"; |
|
} |
|
return false; |
|
} |
|
|
|
if (!ParseStringProperty(&channel->target_path, err, target_object, "path", |
|
true)) { |
|
if (err) { |
|
(*err) += "`path` field is missing in animation.channels.target\n"; |
|
} |
|
return false; |
|
} |
|
ParseExtensionsProperty(&channel->target_extensions, err, target_object); |
|
if (store_original_json_for_extras_and_extensions) { |
|
json_const_iterator it; |
|
if (FindMember(target_object, "extensions", it)) { |
|
channel->target_extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
channel->sampler = samplerIndex; |
|
channel->target_node = targetIndex; |
|
|
|
ParseExtensionsProperty(&channel->extensions, err, o); |
|
ParseExtrasProperty(&(channel->extras), o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
channel->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
channel->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseAnimation(Animation *animation, std::string *err, |
|
const json &o, |
|
bool store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator channelsIt; |
|
if (FindMember(o, "channels", channelsIt) && |
|
IsArray(GetValue(channelsIt))) { |
|
json_const_array_iterator channelEnd = ArrayEnd(GetValue(channelsIt)); |
|
for (json_const_array_iterator i = ArrayBegin(GetValue(channelsIt)); |
|
i != channelEnd; ++i) { |
|
AnimationChannel channel; |
|
if (ParseAnimationChannel( |
|
&channel, err, *i, |
|
store_original_json_for_extras_and_extensions)) { |
|
// Only add the channel if the parsing succeeds. |
|
animation->channels.emplace_back(std::move(channel)); |
|
} |
|
} |
|
} |
|
} |
|
|
|
{ |
|
json_const_iterator samplerIt; |
|
if (FindMember(o, "samplers", samplerIt) && IsArray(GetValue(samplerIt))) { |
|
const json &sampler_array = GetValue(samplerIt); |
|
|
|
json_const_array_iterator it = ArrayBegin(sampler_array); |
|
json_const_array_iterator itEnd = ArrayEnd(sampler_array); |
|
|
|
for (; it != itEnd; ++it) { |
|
const json &s = *it; |
|
|
|
AnimationSampler sampler; |
|
int inputIndex = -1; |
|
int outputIndex = -1; |
|
if (!ParseIntegerProperty(&inputIndex, err, s, "input", true)) { |
|
if (err) { |
|
(*err) += "`input` field is missing in animation.sampler\n"; |
|
} |
|
return false; |
|
} |
|
ParseStringProperty(&sampler.interpolation, err, s, "interpolation", |
|
false); |
|
if (!ParseIntegerProperty(&outputIndex, err, s, "output", true)) { |
|
if (err) { |
|
(*err) += "`output` field is missing in animation.sampler\n"; |
|
} |
|
return false; |
|
} |
|
sampler.input = inputIndex; |
|
sampler.output = outputIndex; |
|
ParseExtensionsProperty(&(sampler.extensions), err, o); |
|
ParseExtrasProperty(&(sampler.extras), s); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator eit; |
|
if (FindMember(o, "extensions", eit)) { |
|
sampler.extensions_json_string = JsonToString(GetValue(eit)); |
|
} |
|
} |
|
{ |
|
json_const_iterator eit; |
|
if (FindMember(o, "extras", eit)) { |
|
sampler.extras_json_string = JsonToString(GetValue(eit)); |
|
} |
|
} |
|
} |
|
|
|
animation->samplers.emplace_back(std::move(sampler)); |
|
} |
|
} |
|
} |
|
|
|
ParseStringProperty(&animation->name, err, o, "name", false); |
|
|
|
ParseExtensionsProperty(&animation->extensions, err, o); |
|
ParseExtrasProperty(&(animation->extras), o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
animation->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
animation->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseSampler(Sampler *sampler, std::string *err, const json &o, |
|
bool store_original_json_for_extras_and_extensions) { |
|
ParseStringProperty(&sampler->name, err, o, "name", false); |
|
|
|
int minFilter = -1; |
|
int magFilter = -1; |
|
int wrapS = TINYGLTF_TEXTURE_WRAP_REPEAT; |
|
int wrapT = TINYGLTF_TEXTURE_WRAP_REPEAT; |
|
//int wrapR = TINYGLTF_TEXTURE_WRAP_REPEAT; |
|
ParseIntegerProperty(&minFilter, err, o, "minFilter", false); |
|
ParseIntegerProperty(&magFilter, err, o, "magFilter", false); |
|
ParseIntegerProperty(&wrapS, err, o, "wrapS", false); |
|
ParseIntegerProperty(&wrapT, err, o, "wrapT", false); |
|
//ParseIntegerProperty(&wrapR, err, o, "wrapR", false); // tinygltf extension |
|
|
|
// TODO(syoyo): Check the value is allowed one. |
|
// (e.g. we allow 9728(NEAREST), but don't allow 9727) |
|
|
|
sampler->minFilter = minFilter; |
|
sampler->magFilter = magFilter; |
|
sampler->wrapS = wrapS; |
|
sampler->wrapT = wrapT; |
|
//sampler->wrapR = wrapR; |
|
|
|
ParseExtensionsProperty(&(sampler->extensions), err, o); |
|
ParseExtrasProperty(&(sampler->extras), o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
sampler->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
sampler->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseSkin(Skin *skin, std::string *err, const json &o, |
|
bool store_original_json_for_extras_and_extensions) { |
|
ParseStringProperty(&skin->name, err, o, "name", false, "Skin"); |
|
|
|
std::vector<int> joints; |
|
if (!ParseIntegerArrayProperty(&joints, err, o, "joints", false, "Skin")) { |
|
return false; |
|
} |
|
skin->joints = std::move(joints); |
|
|
|
int skeleton = -1; |
|
ParseIntegerProperty(&skeleton, err, o, "skeleton", false, "Skin"); |
|
skin->skeleton = skeleton; |
|
|
|
int invBind = -1; |
|
ParseIntegerProperty(&invBind, err, o, "inverseBindMatrices", true, "Skin"); |
|
skin->inverseBindMatrices = invBind; |
|
|
|
ParseExtensionsProperty(&(skin->extensions), err, o); |
|
ParseExtrasProperty(&(skin->extras), o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
skin->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
skin->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParsePerspectiveCamera( |
|
PerspectiveCamera *camera, std::string *err, const json &o, |
|
bool store_original_json_for_extras_and_extensions) { |
|
double yfov = 0.0; |
|
if (!ParseNumberProperty(&yfov, err, o, "yfov", true, "OrthographicCamera")) { |
|
return false; |
|
} |
|
|
|
double znear = 0.0; |
|
if (!ParseNumberProperty(&znear, err, o, "znear", true, |
|
"PerspectiveCamera")) { |
|
return false; |
|
} |
|
|
|
double aspectRatio = 0.0; // = invalid |
|
ParseNumberProperty(&aspectRatio, err, o, "aspectRatio", false, |
|
"PerspectiveCamera"); |
|
|
|
double zfar = 0.0; // = invalid |
|
ParseNumberProperty(&zfar, err, o, "zfar", false, "PerspectiveCamera"); |
|
|
|
camera->aspectRatio = aspectRatio; |
|
camera->zfar = zfar; |
|
camera->yfov = yfov; |
|
camera->znear = znear; |
|
|
|
ParseExtensionsProperty(&camera->extensions, err, o); |
|
ParseExtrasProperty(&(camera->extras), o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
camera->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
camera->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
// TODO(syoyo): Validate parameter values. |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseSpotLight(SpotLight *light, std::string *err, const json &o, |
|
bool store_original_json_for_extras_and_extensions) { |
|
ParseNumberProperty(&light->innerConeAngle, err, o, "innerConeAngle", false); |
|
ParseNumberProperty(&light->outerConeAngle, err, o, "outerConeAngle", false); |
|
|
|
ParseExtensionsProperty(&light->extensions, err, o); |
|
ParseExtrasProperty(&light->extras, o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
light->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
light->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
// TODO(syoyo): Validate parameter values. |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseOrthographicCamera( |
|
OrthographicCamera *camera, std::string *err, const json &o, |
|
bool store_original_json_for_extras_and_extensions) { |
|
double xmag = 0.0; |
|
if (!ParseNumberProperty(&xmag, err, o, "xmag", true, "OrthographicCamera")) { |
|
return false; |
|
} |
|
|
|
double ymag = 0.0; |
|
if (!ParseNumberProperty(&ymag, err, o, "ymag", true, "OrthographicCamera")) { |
|
return false; |
|
} |
|
|
|
double zfar = 0.0; |
|
if (!ParseNumberProperty(&zfar, err, o, "zfar", true, "OrthographicCamera")) { |
|
return false; |
|
} |
|
|
|
double znear = 0.0; |
|
if (!ParseNumberProperty(&znear, err, o, "znear", true, |
|
"OrthographicCamera")) { |
|
return false; |
|
} |
|
|
|
ParseExtensionsProperty(&camera->extensions, err, o); |
|
ParseExtrasProperty(&(camera->extras), o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
camera->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
camera->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
camera->xmag = xmag; |
|
camera->ymag = ymag; |
|
camera->zfar = zfar; |
|
camera->znear = znear; |
|
|
|
// TODO(syoyo): Validate parameter values. |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseCamera(Camera *camera, std::string *err, const json &o, |
|
bool store_original_json_for_extras_and_extensions) { |
|
if (!ParseStringProperty(&camera->type, err, o, "type", true, "Camera")) { |
|
return false; |
|
} |
|
|
|
if (camera->type.compare("orthographic") == 0) { |
|
json_const_iterator orthoIt; |
|
if (!FindMember(o, "orthographic", orthoIt)) { |
|
if (err) { |
|
std::stringstream ss; |
|
ss << "Orhographic camera description not found." << std::endl; |
|
(*err) += ss.str(); |
|
} |
|
return false; |
|
} |
|
|
|
const json &v = GetValue(orthoIt); |
|
if (!IsObject(v)) { |
|
if (err) { |
|
std::stringstream ss; |
|
ss << "\"orthographic\" is not a JSON object." << std::endl; |
|
(*err) += ss.str(); |
|
} |
|
return false; |
|
} |
|
|
|
if (!ParseOrthographicCamera( |
|
&camera->orthographic, err, v, |
|
store_original_json_for_extras_and_extensions)) { |
|
return false; |
|
} |
|
} else if (camera->type.compare("perspective") == 0) { |
|
json_const_iterator perspIt; |
|
if (!FindMember(o, "perspective", perspIt)) { |
|
if (err) { |
|
std::stringstream ss; |
|
ss << "Perspective camera description not found." << std::endl; |
|
(*err) += ss.str(); |
|
} |
|
return false; |
|
} |
|
|
|
const json &v = GetValue(perspIt); |
|
if (!IsObject(v)) { |
|
if (err) { |
|
std::stringstream ss; |
|
ss << "\"perspective\" is not a JSON object." << std::endl; |
|
(*err) += ss.str(); |
|
} |
|
return false; |
|
} |
|
|
|
if (!ParsePerspectiveCamera( |
|
&camera->perspective, err, v, |
|
store_original_json_for_extras_and_extensions)) { |
|
return false; |
|
} |
|
} else { |
|
if (err) { |
|
std::stringstream ss; |
|
ss << "Invalid camera type: \"" << camera->type |
|
<< "\". Must be \"perspective\" or \"orthographic\"" << std::endl; |
|
(*err) += ss.str(); |
|
} |
|
return false; |
|
} |
|
|
|
ParseStringProperty(&camera->name, err, o, "name", false); |
|
|
|
ParseExtensionsProperty(&camera->extensions, err, o); |
|
ParseExtrasProperty(&(camera->extras), o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
camera->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
camera->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
return true; |
|
} |
|
|
|
static bool ParseLight(Light *light, std::string *err, const json &o, |
|
bool store_original_json_for_extras_and_extensions) { |
|
if (!ParseStringProperty(&light->type, err, o, "type", true)) { |
|
return false; |
|
} |
|
|
|
if (light->type == "spot") { |
|
json_const_iterator spotIt; |
|
if (!FindMember(o, "spot", spotIt)) { |
|
if (err) { |
|
std::stringstream ss; |
|
ss << "Spot light description not found." << std::endl; |
|
(*err) += ss.str(); |
|
} |
|
return false; |
|
} |
|
|
|
const json &v = GetValue(spotIt); |
|
if (!IsObject(v)) { |
|
if (err) { |
|
std::stringstream ss; |
|
ss << "\"spot\" is not a JSON object." << std::endl; |
|
(*err) += ss.str(); |
|
} |
|
return false; |
|
} |
|
|
|
if (!ParseSpotLight(&light->spot, err, v, |
|
store_original_json_for_extras_and_extensions)) { |
|
return false; |
|
} |
|
} |
|
|
|
ParseStringProperty(&light->name, err, o, "name", false); |
|
ParseNumberArrayProperty(&light->color, err, o, "color", false); |
|
ParseNumberProperty(&light->range, err, o, "range", false); |
|
ParseNumberProperty(&light->intensity, err, o, "intensity", false); |
|
ParseExtensionsProperty(&light->extensions, err, o); |
|
ParseExtrasProperty(&(light->extras), o); |
|
|
|
if (store_original_json_for_extras_and_extensions) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
light->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
light->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
return true; |
|
} |
|
|
|
bool TinyGLTF::LoadFromString(Model *model, std::string *err, std::string *warn, |
|
const char *json_str, |
|
unsigned int json_str_length, |
|
const std::string &base_dir, |
|
unsigned int check_sections) { |
|
if (json_str_length < 4) { |
|
if (err) { |
|
(*err) = "JSON string too short.\n"; |
|
} |
|
return false; |
|
} |
|
|
|
JsonDocument v; |
|
|
|
#if (defined(__cpp_exceptions) || defined(__EXCEPTIONS) || \ |
|
defined(_CPPUNWIND)) && \ |
|
!defined(TINYGLTF_NOEXCEPTION) |
|
try { |
|
JsonParse(v, json_str, json_str_length, true); |
|
|
|
} catch (const std::exception &e) { |
|
if (err) { |
|
(*err) = e.what(); |
|
} |
|
return false; |
|
} |
|
#else |
|
{ |
|
JsonParse(v, json_str, json_str_length); |
|
|
|
if (!IsObject(v)) { |
|
// Assume parsing was failed. |
|
if (err) { |
|
(*err) = "Failed to parse JSON object\n"; |
|
} |
|
return false; |
|
} |
|
} |
|
#endif |
|
|
|
if (!IsObject(v)) { |
|
// root is not an object. |
|
if (err) { |
|
(*err) = "Root element is not a JSON object\n"; |
|
} |
|
return false; |
|
} |
|
|
|
{ |
|
bool version_found = false; |
|
json_const_iterator it; |
|
if (FindMember(v, "asset", it) && IsObject(GetValue(it))) { |
|
auto &itObj = GetValue(it); |
|
json_const_iterator version_it; |
|
std::string versionStr; |
|
if (FindMember(itObj, "version", version_it) && |
|
GetString(GetValue(version_it), versionStr)) { |
|
version_found = true; |
|
} |
|
} |
|
if (version_found) { |
|
// OK |
|
} else if (check_sections & REQUIRE_VERSION) { |
|
if (err) { |
|
(*err) += "\"asset\" object not found in .gltf or not an object type\n"; |
|
} |
|
return false; |
|
} |
|
} |
|
|
|
// scene is not mandatory. |
|
// FIXME Maybe a better way to handle it than removing the code |
|
|
|
auto IsArrayMemberPresent = [](const json &_v, const char *name) -> bool { |
|
json_const_iterator it; |
|
return FindMember(_v, name, it) && IsArray(GetValue(it)); |
|
}; |
|
|
|
{ |
|
if ((check_sections & REQUIRE_SCENES) && |
|
!IsArrayMemberPresent(v, "scenes")) { |
|
if (err) { |
|
(*err) += "\"scenes\" object not found in .gltf or not an array type\n"; |
|
} |
|
return false; |
|
} |
|
} |
|
|
|
{ |
|
if ((check_sections & REQUIRE_NODES) && !IsArrayMemberPresent(v, "nodes")) { |
|
if (err) { |
|
(*err) += "\"nodes\" object not found in .gltf\n"; |
|
} |
|
return false; |
|
} |
|
} |
|
|
|
{ |
|
if ((check_sections & REQUIRE_ACCESSORS) && |
|
!IsArrayMemberPresent(v, "accessors")) { |
|
if (err) { |
|
(*err) += "\"accessors\" object not found in .gltf\n"; |
|
} |
|
return false; |
|
} |
|
} |
|
|
|
{ |
|
if ((check_sections & REQUIRE_BUFFERS) && |
|
!IsArrayMemberPresent(v, "buffers")) { |
|
if (err) { |
|
(*err) += "\"buffers\" object not found in .gltf\n"; |
|
} |
|
return false; |
|
} |
|
} |
|
|
|
{ |
|
if ((check_sections & REQUIRE_BUFFER_VIEWS) && |
|
!IsArrayMemberPresent(v, "bufferViews")) { |
|
if (err) { |
|
(*err) += "\"bufferViews\" object not found in .gltf\n"; |
|
} |
|
return false; |
|
} |
|
} |
|
|
|
model->buffers.clear(); |
|
model->bufferViews.clear(); |
|
model->accessors.clear(); |
|
model->meshes.clear(); |
|
model->cameras.clear(); |
|
model->nodes.clear(); |
|
model->extensionsUsed.clear(); |
|
model->extensionsRequired.clear(); |
|
model->extensions.clear(); |
|
model->defaultScene = -1; |
|
|
|
// 1. Parse Asset |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(v, "asset", it) && IsObject(GetValue(it))) { |
|
const json &root = GetValue(it); |
|
|
|
ParseAsset(&model->asset, err, root, |
|
store_original_json_for_extras_and_extensions_); |
|
} |
|
} |
|
|
|
#ifdef TINYGLTF_USE_CPP14 |
|
auto ForEachInArray = [](const json &_v, const char *member, |
|
const auto &cb) -> bool |
|
#else |
|
// The std::function<> implementation can be less efficient because it will |
|
// allocate heap when the size of the captured lambda is above 16 bytes with |
|
// clang and gcc, but it does not require C++14. |
|
auto ForEachInArray = [](const json &_v, const char *member, |
|
const std::function<bool(const json &)> &cb) -> bool |
|
#endif |
|
{ |
|
json_const_iterator itm; |
|
if (FindMember(_v, member, itm) && IsArray(GetValue(itm))) { |
|
const json &root = GetValue(itm); |
|
auto it = ArrayBegin(root); |
|
auto end = ArrayEnd(root); |
|
for (; it != end; ++it) { |
|
if (!cb(*it)) return false; |
|
} |
|
} |
|
return true; |
|
}; |
|
|
|
// 2. Parse extensionUsed |
|
{ |
|
ForEachInArray(v, "extensionsUsed", [&](const json &o) { |
|
std::string str; |
|
GetString(o, str); |
|
model->extensionsUsed.emplace_back(std::move(str)); |
|
return true; |
|
}); |
|
} |
|
|
|
{ |
|
ForEachInArray(v, "extensionsRequired", [&](const json &o) { |
|
std::string str; |
|
GetString(o, str); |
|
model->extensionsRequired.emplace_back(std::move(str)); |
|
return true; |
|
}); |
|
} |
|
|
|
// 3. Parse Buffer |
|
{ |
|
bool success = ForEachInArray(v, "buffers", [&](const json &o) { |
|
if (!IsObject(o)) { |
|
if (err) { |
|
(*err) += "`buffers' does not contain an JSON object."; |
|
} |
|
return false; |
|
} |
|
Buffer buffer; |
|
if (!ParseBuffer(&buffer, err, o, |
|
store_original_json_for_extras_and_extensions_, &fs, |
|
base_dir, is_binary_, bin_data_, bin_size_)) { |
|
return false; |
|
} |
|
|
|
model->buffers.emplace_back(std::move(buffer)); |
|
return true; |
|
}); |
|
|
|
if (!success) { |
|
return false; |
|
} |
|
} |
|
// 4. Parse BufferView |
|
{ |
|
bool success = ForEachInArray(v, "bufferViews", [&](const json &o) { |
|
if (!IsObject(o)) { |
|
if (err) { |
|
(*err) += "`bufferViews' does not contain an JSON object."; |
|
} |
|
return false; |
|
} |
|
BufferView bufferView; |
|
if (!ParseBufferView(&bufferView, err, o, |
|
store_original_json_for_extras_and_extensions_)) { |
|
return false; |
|
} |
|
|
|
model->bufferViews.emplace_back(std::move(bufferView)); |
|
return true; |
|
}); |
|
|
|
if (!success) { |
|
return false; |
|
} |
|
} |
|
|
|
// 5. Parse Accessor |
|
{ |
|
bool success = ForEachInArray(v, "accessors", [&](const json &o) { |
|
if (!IsObject(o)) { |
|
if (err) { |
|
(*err) += "`accessors' does not contain an JSON object."; |
|
} |
|
return false; |
|
} |
|
Accessor accessor; |
|
if (!ParseAccessor(&accessor, err, o, |
|
store_original_json_for_extras_and_extensions_)) { |
|
return false; |
|
} |
|
|
|
model->accessors.emplace_back(std::move(accessor)); |
|
return true; |
|
}); |
|
|
|
if (!success) { |
|
return false; |
|
} |
|
} |
|
|
|
// 6. Parse Mesh |
|
{ |
|
bool success = ForEachInArray(v, "meshes", [&](const json &o) { |
|
if (!IsObject(o)) { |
|
if (err) { |
|
(*err) += "`meshes' does not contain an JSON object."; |
|
} |
|
return false; |
|
} |
|
Mesh mesh; |
|
if (!ParseMesh(&mesh, model, err, o, |
|
store_original_json_for_extras_and_extensions_)) { |
|
return false; |
|
} |
|
|
|
model->meshes.emplace_back(std::move(mesh)); |
|
return true; |
|
}); |
|
|
|
if (!success) { |
|
return false; |
|
} |
|
} |
|
|
|
// Assign missing bufferView target types |
|
// - Look for missing Mesh indices |
|
// - Look for missing Mesh attributes |
|
for (auto &mesh : model->meshes) { |
|
for (auto &primitive : mesh.primitives) { |
|
if (primitive.indices > |
|
-1) // has indices from parsing step, must be Element Array Buffer |
|
{ |
|
if (size_t(primitive.indices) >= model->accessors.size()) { |
|
if (err) { |
|
(*err) += "primitive indices accessor out of bounds"; |
|
} |
|
return false; |
|
} |
|
|
|
auto bufferView = |
|
model->accessors[size_t(primitive.indices)].bufferView; |
|
if (bufferView < 0 || size_t(bufferView) >= model->bufferViews.size()) { |
|
if (err) { |
|
(*err) += "accessor[" + std::to_string(primitive.indices) + |
|
"] invalid bufferView"; |
|
} |
|
return false; |
|
} |
|
|
|
model->bufferViews[size_t(bufferView)].target = |
|
TINYGLTF_TARGET_ELEMENT_ARRAY_BUFFER; |
|
// we could optionally check if acessors' bufferView type is Scalar, as |
|
// it should be |
|
} |
|
|
|
for (auto &attribute : primitive.attributes) { |
|
model |
|
->bufferViews[size_t( |
|
model->accessors[size_t(attribute.second)].bufferView)] |
|
.target = TINYGLTF_TARGET_ARRAY_BUFFER; |
|
} |
|
|
|
for (auto &target : primitive.targets) { |
|
for (auto &attribute : target) { |
|
auto bufferView = |
|
model->accessors[size_t(attribute.second)].bufferView; |
|
// bufferView could be null(-1) for sparse morph target |
|
if (bufferView >= 0) { |
|
model->bufferViews[size_t(bufferView)].target = |
|
TINYGLTF_TARGET_ARRAY_BUFFER; |
|
} |
|
} |
|
} |
|
} |
|
} |
|
|
|
// 7. Parse Node |
|
{ |
|
bool success = ForEachInArray(v, "nodes", [&](const json &o) { |
|
if (!IsObject(o)) { |
|
if (err) { |
|
(*err) += "`nodes' does not contain an JSON object."; |
|
} |
|
return false; |
|
} |
|
Node node; |
|
if (!ParseNode(&node, err, o, |
|
store_original_json_for_extras_and_extensions_)) { |
|
return false; |
|
} |
|
|
|
model->nodes.emplace_back(std::move(node)); |
|
return true; |
|
}); |
|
|
|
if (!success) { |
|
return false; |
|
} |
|
} |
|
|
|
// 8. Parse scenes. |
|
{ |
|
bool success = ForEachInArray(v, "scenes", [&](const json &o) { |
|
if (!IsObject(o)) { |
|
if (err) { |
|
(*err) += "`scenes' does not contain an JSON object."; |
|
} |
|
return false; |
|
} |
|
std::vector<int> nodes; |
|
ParseIntegerArrayProperty(&nodes, err, o, "nodes", false); |
|
|
|
Scene scene; |
|
scene.nodes = std::move(nodes); |
|
|
|
ParseStringProperty(&scene.name, err, o, "name", false); |
|
|
|
ParseExtensionsProperty(&scene.extensions, err, o); |
|
ParseExtrasProperty(&scene.extras, o); |
|
|
|
if (store_original_json_for_extras_and_extensions_) { |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
model->extensions_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extras", it)) { |
|
model->extras_json_string = JsonToString(GetValue(it)); |
|
} |
|
} |
|
} |
|
|
|
model->scenes.emplace_back(std::move(scene)); |
|
return true; |
|
}); |
|
|
|
if (!success) { |
|
return false; |
|
} |
|
} |
|
|
|
// 9. Parse default scenes. |
|
{ |
|
json_const_iterator rootIt; |
|
int iVal; |
|
if (FindMember(v, "scene", rootIt) && GetInt(GetValue(rootIt), iVal)) { |
|
model->defaultScene = iVal; |
|
} |
|
} |
|
|
|
// 10. Parse Material |
|
{ |
|
bool success = ForEachInArray(v, "materials", [&](const json &o) { |
|
if (!IsObject(o)) { |
|
if (err) { |
|
(*err) += "`materials' does not contain an JSON object."; |
|
} |
|
return false; |
|
} |
|
Material material; |
|
ParseStringProperty(&material.name, err, o, "name", false); |
|
|
|
if (!ParseMaterial(&material, err, o, |
|
store_original_json_for_extras_and_extensions_)) { |
|
return false; |
|
} |
|
|
|
model->materials.emplace_back(std::move(material)); |
|
return true; |
|
}); |
|
|
|
if (!success) { |
|
return false; |
|
} |
|
} |
|
|
|
// 11. Parse Image |
|
void *load_image_user_data{nullptr}; |
|
|
|
LoadImageDataOption load_image_option; |
|
|
|
if (user_image_loader_) { |
|
// Use user supplied pointer |
|
load_image_user_data = load_image_user_data_; |
|
} else { |
|
load_image_option.preserve_channels = preserve_image_channels_; |
|
load_image_user_data = reinterpret_cast<void *>(&load_image_option); |
|
} |
|
|
|
{ |
|
int idx = 0; |
|
bool success = ForEachInArray(v, "images", [&](const json &o) { |
|
if (!IsObject(o)) { |
|
if (err) { |
|
(*err) += "image[" + std::to_string(idx) + "] is not a JSON object."; |
|
} |
|
return false; |
|
} |
|
Image image; |
|
if (!ParseImage(&image, idx, err, warn, o, |
|
store_original_json_for_extras_and_extensions_, base_dir, |
|
&fs, &this->LoadImageData, load_image_user_data)) { |
|
return false; |
|
} |
|
|
|
if (image.bufferView != -1) { |
|
// Load image from the buffer view. |
|
if (size_t(image.bufferView) >= model->bufferViews.size()) { |
|
if (err) { |
|
std::stringstream ss; |
|
ss << "image[" << idx << "] bufferView \"" << image.bufferView |
|
<< "\" not found in the scene." << std::endl; |
|
(*err) += ss.str(); |
|
} |
|
return false; |
|
} |
|
|
|
const BufferView &bufferView = |
|
model->bufferViews[size_t(image.bufferView)]; |
|
if (size_t(bufferView.buffer) >= model->buffers.size()) { |
|
if (err) { |
|
std::stringstream ss; |
|
ss << "image[" << idx << "] buffer \"" << bufferView.buffer |
|
<< "\" not found in the scene." << std::endl; |
|
(*err) += ss.str(); |
|
} |
|
return false; |
|
} |
|
const Buffer &buffer = model->buffers[size_t(bufferView.buffer)]; |
|
|
|
if (*LoadImageData == nullptr) { |
|
if (err) { |
|
(*err) += "No LoadImageData callback specified.\n"; |
|
} |
|
return false; |
|
} |
|
bool ret = LoadImageData( |
|
&image, idx, err, warn, image.width, image.height, |
|
&buffer.data[bufferView.byteOffset], |
|
static_cast<int>(bufferView.byteLength), load_image_user_data); |
|
if (!ret) { |
|
return false; |
|
} |
|
} |
|
|
|
model->images.emplace_back(std::move(image)); |
|
++idx; |
|
return true; |
|
}); |
|
|
|
if (!success) { |
|
return false; |
|
} |
|
} |
|
|
|
// 12. Parse Texture |
|
{ |
|
bool success = ForEachInArray(v, "textures", [&](const json &o) { |
|
if (!IsObject(o)) { |
|
if (err) { |
|
(*err) += "`textures' does not contain an JSON object."; |
|
} |
|
return false; |
|
} |
|
Texture texture; |
|
if (!ParseTexture(&texture, err, o, |
|
store_original_json_for_extras_and_extensions_, |
|
base_dir)) { |
|
return false; |
|
} |
|
|
|
model->textures.emplace_back(std::move(texture)); |
|
return true; |
|
}); |
|
|
|
if (!success) { |
|
return false; |
|
} |
|
} |
|
|
|
// 13. Parse Animation |
|
{ |
|
bool success = ForEachInArray(v, "animations", [&](const json &o) { |
|
if (!IsObject(o)) { |
|
if (err) { |
|
(*err) += "`animations' does not contain an JSON object."; |
|
} |
|
return false; |
|
} |
|
Animation animation; |
|
if (!ParseAnimation(&animation, err, o, |
|
store_original_json_for_extras_and_extensions_)) { |
|
return false; |
|
} |
|
|
|
model->animations.emplace_back(std::move(animation)); |
|
return true; |
|
}); |
|
|
|
if (!success) { |
|
return false; |
|
} |
|
} |
|
|
|
// 14. Parse Skin |
|
{ |
|
bool success = ForEachInArray(v, "skins", [&](const json &o) { |
|
if (!IsObject(o)) { |
|
if (err) { |
|
(*err) += "`skins' does not contain an JSON object."; |
|
} |
|
return false; |
|
} |
|
Skin skin; |
|
if (!ParseSkin(&skin, err, o, |
|
store_original_json_for_extras_and_extensions_)) { |
|
return false; |
|
} |
|
|
|
model->skins.emplace_back(std::move(skin)); |
|
return true; |
|
}); |
|
|
|
if (!success) { |
|
return false; |
|
} |
|
} |
|
|
|
// 15. Parse Sampler |
|
{ |
|
bool success = ForEachInArray(v, "samplers", [&](const json &o) { |
|
if (!IsObject(o)) { |
|
if (err) { |
|
(*err) += "`samplers' does not contain an JSON object."; |
|
} |
|
return false; |
|
} |
|
Sampler sampler; |
|
if (!ParseSampler(&sampler, err, o, |
|
store_original_json_for_extras_and_extensions_)) { |
|
return false; |
|
} |
|
|
|
model->samplers.emplace_back(std::move(sampler)); |
|
return true; |
|
}); |
|
|
|
if (!success) { |
|
return false; |
|
} |
|
} |
|
|
|
// 16. Parse Camera |
|
{ |
|
bool success = ForEachInArray(v, "cameras", [&](const json &o) { |
|
if (!IsObject(o)) { |
|
if (err) { |
|
(*err) += "`cameras' does not contain an JSON object."; |
|
} |
|
return false; |
|
} |
|
Camera camera; |
|
if (!ParseCamera(&camera, err, o, |
|
store_original_json_for_extras_and_extensions_)) { |
|
return false; |
|
} |
|
|
|
model->cameras.emplace_back(std::move(camera)); |
|
return true; |
|
}); |
|
|
|
if (!success) { |
|
return false; |
|
} |
|
} |
|
|
|
// 17. Parse Extensions |
|
ParseExtensionsProperty(&model->extensions, err, v); |
|
|
|
// 18. Specific extension implementations |
|
{ |
|
json_const_iterator rootIt; |
|
if (FindMember(v, "extensions", rootIt) && IsObject(GetValue(rootIt))) { |
|
const json &root = GetValue(rootIt); |
|
|
|
json_const_iterator it(ObjectBegin(root)); |
|
json_const_iterator itEnd(ObjectEnd(root)); |
|
for (; it != itEnd; ++it) { |
|
// parse KHR_lights_punctual extension |
|
std::string key(GetKey(it)); |
|
if ((key == "KHR_lights_punctual") && IsObject(GetValue(it))) { |
|
const json &object = GetValue(it); |
|
json_const_iterator itLight; |
|
if (FindMember(object, "lights", itLight)) { |
|
const json &lights = GetValue(itLight); |
|
if (!IsArray(lights)) { |
|
continue; |
|
} |
|
|
|
auto arrayIt(ArrayBegin(lights)); |
|
auto arrayItEnd(ArrayEnd(lights)); |
|
for (; arrayIt != arrayItEnd; ++arrayIt) { |
|
Light light; |
|
if (!ParseLight(&light, err, *arrayIt, |
|
store_original_json_for_extras_and_extensions_)) { |
|
return false; |
|
} |
|
model->lights.emplace_back(std::move(light)); |
|
} |
|
} |
|
} |
|
} |
|
} |
|
} |
|
|
|
// 19. Parse Extras |
|
ParseExtrasProperty(&model->extras, v); |
|
|
|
if (store_original_json_for_extras_and_extensions_) { |
|
model->extras_json_string = JsonToString(v["extras"]); |
|
model->extensions_json_string = JsonToString(v["extensions"]); |
|
} |
|
|
|
return true; |
|
} |
|
|
|
bool TinyGLTF::LoadASCIIFromString(Model *model, std::string *err, |
|
std::string *warn, const char *str, |
|
unsigned int length, |
|
const std::string &base_dir, |
|
unsigned int check_sections) { |
|
is_binary_ = false; |
|
bin_data_ = nullptr; |
|
bin_size_ = 0; |
|
|
|
return LoadFromString(model, err, warn, str, length, base_dir, |
|
check_sections); |
|
} |
|
|
|
bool TinyGLTF::LoadASCIIFromFile(Model *model, std::string *err, |
|
std::string *warn, const std::string &filename, |
|
unsigned int check_sections) { |
|
std::stringstream ss; |
|
|
|
if (fs.ReadWholeFile == nullptr) { |
|
// Programmer error, assert() ? |
|
ss << "Failed to read file: " << filename |
|
<< ": one or more FS callback not set" << std::endl; |
|
if (err) { |
|
(*err) = ss.str(); |
|
} |
|
return false; |
|
} |
|
|
|
std::vector<unsigned char> data; |
|
std::string fileerr; |
|
bool fileread = fs.ReadWholeFile(&data, &fileerr, filename, fs.user_data); |
|
if (!fileread) { |
|
ss << "Failed to read file: " << filename << ": " << fileerr << std::endl; |
|
if (err) { |
|
(*err) = ss.str(); |
|
} |
|
return false; |
|
} |
|
|
|
size_t sz = data.size(); |
|
if (sz == 0) { |
|
if (err) { |
|
(*err) = "Empty file."; |
|
} |
|
return false; |
|
} |
|
|
|
std::string basedir = GetBaseDir(filename); |
|
|
|
bool ret = LoadASCIIFromString( |
|
model, err, warn, reinterpret_cast<const char *>(&data.at(0)), |
|
static_cast<unsigned int>(data.size()), basedir, check_sections); |
|
|
|
return ret; |
|
} |
|
|
|
bool TinyGLTF::LoadBinaryFromMemory(Model *model, std::string *err, |
|
std::string *warn, |
|
const unsigned char *bytes, |
|
unsigned int size, |
|
const std::string &base_dir, |
|
unsigned int check_sections) { |
|
if (size < 20) { |
|
if (err) { |
|
(*err) = "Too short data size for glTF Binary."; |
|
} |
|
return false; |
|
} |
|
|
|
if (bytes[0] == 'g' && bytes[1] == 'l' && bytes[2] == 'T' && |
|
bytes[3] == 'F') { |
|
// ok |
|
} else { |
|
if (err) { |
|
(*err) = "Invalid magic."; |
|
} |
|
return false; |
|
} |
|
|
|
unsigned int version; // 4 bytes |
|
unsigned int length; // 4 bytes |
|
unsigned int model_length; // 4 bytes |
|
unsigned int model_format; // 4 bytes; |
|
|
|
// @todo { Endian swap for big endian machine. } |
|
memcpy(&version, bytes + 4, 4); |
|
swap4(&version); |
|
memcpy(&length, bytes + 8, 4); |
|
swap4(&length); |
|
memcpy(&model_length, bytes + 12, 4); |
|
swap4(&model_length); |
|
memcpy(&model_format, bytes + 16, 4); |
|
swap4(&model_format); |
|
|
|
// In case the Bin buffer is not present, the size is exactly 20 + size of |
|
// JSON contents, |
|
// so use "greater than" operator. |
|
if ((20 + model_length > size) || (model_length < 1) || (length > size) || |
|
(20 + model_length > length) || |
|
(model_format != 0x4E4F534A)) { // 0x4E4F534A = JSON format. |
|
if (err) { |
|
(*err) = "Invalid glTF binary."; |
|
} |
|
return false; |
|
} |
|
|
|
// Extract JSON string. |
|
std::string jsonString(reinterpret_cast<const char *>(&bytes[20]), |
|
model_length); |
|
|
|
is_binary_ = true; |
|
bin_data_ = bytes + 20 + model_length + |
|
8; // 4 bytes (buffer_length) + 4 bytes(buffer_format) |
|
bin_size_ = |
|
length - (20 + model_length); // extract header + JSON scene data. |
|
|
|
bool ret = LoadFromString(model, err, warn, |
|
reinterpret_cast<const char *>(&bytes[20]), |
|
model_length, base_dir, check_sections); |
|
if (!ret) { |
|
return ret; |
|
} |
|
|
|
return true; |
|
} |
|
|
|
bool TinyGLTF::LoadBinaryFromFile(Model *model, std::string *err, |
|
std::string *warn, |
|
const std::string &filename, |
|
unsigned int check_sections) { |
|
std::stringstream ss; |
|
|
|
if (fs.ReadWholeFile == nullptr) { |
|
// Programmer error, assert() ? |
|
ss << "Failed to read file: " << filename |
|
<< ": one or more FS callback not set" << std::endl; |
|
if (err) { |
|
(*err) = ss.str(); |
|
} |
|
return false; |
|
} |
|
|
|
std::vector<unsigned char> data; |
|
std::string fileerr; |
|
bool fileread = fs.ReadWholeFile(&data, &fileerr, filename, fs.user_data); |
|
if (!fileread) { |
|
ss << "Failed to read file: " << filename << ": " << fileerr << std::endl; |
|
if (err) { |
|
(*err) = ss.str(); |
|
} |
|
return false; |
|
} |
|
|
|
std::string basedir = GetBaseDir(filename); |
|
|
|
bool ret = LoadBinaryFromMemory(model, err, warn, &data.at(0), |
|
static_cast<unsigned int>(data.size()), |
|
basedir, check_sections); |
|
|
|
return ret; |
|
} |
|
|
|
/////////////////////// |
|
// GLTF Serialization |
|
/////////////////////// |
|
namespace { |
|
json JsonFromString(const char *s) { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
return json(s, GetAllocator()); |
|
#else |
|
return json(s); |
|
#endif |
|
} |
|
|
|
void JsonAssign(json &dest, const json &src) { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
dest.CopyFrom(src, GetAllocator()); |
|
#else |
|
dest = src; |
|
#endif |
|
} |
|
|
|
void JsonAddMember(json &o, const char *key, json &&value) { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
if (!o.IsObject()) { |
|
o.SetObject(); |
|
} |
|
o.AddMember(json(key, GetAllocator()), std::move(value), GetAllocator()); |
|
#else |
|
o[key] = std::move(value); |
|
#endif |
|
} |
|
|
|
void JsonPushBack(json &o, json &&value) { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
o.PushBack(std::move(value), GetAllocator()); |
|
#else |
|
o.push_back(std::move(value)); |
|
#endif |
|
} |
|
|
|
bool JsonIsNull(const json &o) { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
return o.IsNull(); |
|
#else |
|
return o.is_null(); |
|
#endif |
|
} |
|
|
|
void JsonSetObject(json &o) { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
o.SetObject(); |
|
#else |
|
o = o.object({}); |
|
#endif |
|
} |
|
|
|
void JsonReserveArray(json &o, size_t s) { |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
o.SetArray(); |
|
o.Reserve(static_cast<rapidjson::SizeType>(s), GetAllocator()); |
|
#endif |
|
(void)(o); |
|
(void)(s); |
|
} |
|
} // namespace |
|
|
|
// typedef std::pair<std::string, json> json_object_pair; |
|
|
|
template <typename T> |
|
static void SerializeNumberProperty(const std::string &key, T number, |
|
json &obj) { |
|
// obj.insert( |
|
// json_object_pair(key, json(static_cast<double>(number)))); |
|
// obj[key] = static_cast<double>(number); |
|
JsonAddMember(obj, key.c_str(), json(number)); |
|
} |
|
|
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
template <> |
|
void SerializeNumberProperty(const std::string &key, size_t number, json &obj) { |
|
JsonAddMember(obj, key.c_str(), json(static_cast<uint64_t>(number))); |
|
} |
|
#endif |
|
|
|
template <typename T> |
|
static void SerializeNumberArrayProperty(const std::string &key, |
|
const std::vector<T> &value, |
|
json &obj) { |
|
if (value.empty()) return; |
|
|
|
json ary; |
|
JsonReserveArray(ary, value.size()); |
|
for (const auto &s : value) { |
|
JsonPushBack(ary, json(s)); |
|
} |
|
JsonAddMember(obj, key.c_str(), std::move(ary)); |
|
} |
|
|
|
static void SerializeStringProperty(const std::string &key, |
|
const std::string &value, json &obj) { |
|
JsonAddMember(obj, key.c_str(), JsonFromString(value.c_str())); |
|
} |
|
|
|
static void SerializeStringArrayProperty(const std::string &key, |
|
const std::vector<std::string> &value, |
|
json &obj) { |
|
json ary; |
|
JsonReserveArray(ary, value.size()); |
|
for (auto &s : value) { |
|
JsonPushBack(ary, JsonFromString(s.c_str())); |
|
} |
|
JsonAddMember(obj, key.c_str(), std::move(ary)); |
|
} |
|
|
|
static bool ValueToJson(const Value &value, json *ret) { |
|
json obj; |
|
#ifdef TINYGLTF_USE_RAPIDJSON |
|
switch (value.Type()) { |
|
case REAL_TYPE: |
|
obj.SetDouble(value.Get<double>()); |
|
break; |
|
case INT_TYPE: |
|
obj.SetInt(value.Get<int>()); |
|
break; |
|
case BOOL_TYPE: |
|
obj.SetBool(value.Get<bool>()); |
|
break; |
|
case STRING_TYPE: |
|
obj.SetString(value.Get<std::string>().c_str(), GetAllocator()); |
|
break; |
|
case ARRAY_TYPE: { |
|
obj.SetArray(); |
|
obj.Reserve(static_cast<rapidjson::SizeType>(value.ArrayLen()), |
|
GetAllocator()); |
|
for (unsigned int i = 0; i < value.ArrayLen(); ++i) { |
|
Value elementValue = value.Get(int(i)); |
|
json elementJson; |
|
if (ValueToJson(value.Get(int(i)), &elementJson)) |
|
obj.PushBack(std::move(elementJson), GetAllocator()); |
|
} |
|
break; |
|
} |
|
case BINARY_TYPE: |
|
// TODO |
|
// obj = json(value.Get<std::vector<unsigned char>>()); |
|
return false; |
|
break; |
|
case OBJECT_TYPE: { |
|
obj.SetObject(); |
|
Value::Object objMap = value.Get<Value::Object>(); |
|
for (auto &it : objMap) { |
|
json elementJson; |
|
if (ValueToJson(it.second, &elementJson)) { |
|
obj.AddMember(json(it.first.c_str(), GetAllocator()), |
|
std::move(elementJson), GetAllocator()); |
|
} |
|
} |
|
break; |
|
} |
|
case NULL_TYPE: |
|
default: |
|
return false; |
|
} |
|
#else |
|
switch (value.Type()) { |
|
case REAL_TYPE: |
|
obj = json(value.Get<double>()); |
|
break; |
|
case INT_TYPE: |
|
obj = json(value.Get<int>()); |
|
break; |
|
case BOOL_TYPE: |
|
obj = json(value.Get<bool>()); |
|
break; |
|
case STRING_TYPE: |
|
obj = json(value.Get<std::string>()); |
|
break; |
|
case ARRAY_TYPE: { |
|
for (unsigned int i = 0; i < value.ArrayLen(); ++i) { |
|
Value elementValue = value.Get(int(i)); |
|
json elementJson; |
|
if (ValueToJson(value.Get(int(i)), &elementJson)) |
|
obj.push_back(elementJson); |
|
} |
|
break; |
|
} |
|
case BINARY_TYPE: |
|
// TODO |
|
// obj = json(value.Get<std::vector<unsigned char>>()); |
|
return false; |
|
break; |
|
case OBJECT_TYPE: { |
|
Value::Object objMap = value.Get<Value::Object>(); |
|
for (auto &it : objMap) { |
|
json elementJson; |
|
if (ValueToJson(it.second, &elementJson)) obj[it.first] = elementJson; |
|
} |
|
break; |
|
} |
|
case NULL_TYPE: |
|
default: |
|
return false; |
|
} |
|
#endif |
|
if (ret) *ret = std::move(obj); |
|
return true; |
|
} |
|
|
|
static void SerializeValue(const std::string &key, const Value &value, |
|
json &obj) { |
|
json ret; |
|
if (ValueToJson(value, &ret)) { |
|
JsonAddMember(obj, key.c_str(), std::move(ret)); |
|
} |
|
} |
|
|
|
static void SerializeGltfBufferData(const std::vector<unsigned char> &data, |
|
json &o) { |
|
std::string header = "data:application/octet-stream;base64,"; |
|
if (data.size() > 0) { |
|
std::string encodedData = |
|
base64_encode(&data[0], static_cast<unsigned int>(data.size())); |
|
SerializeStringProperty("uri", header + encodedData, o); |
|
} else { |
|
// Issue #229 |
|
// size 0 is allowed. Just emit mime header. |
|
SerializeStringProperty("uri", header, o); |
|
} |
|
} |
|
|
|
static bool SerializeGltfBufferData(const std::vector<unsigned char> &data, |
|
const std::string &binFilename) { |
|
#ifdef _WIN32 |
|
#if defined(__GLIBCXX__) // mingw |
|
int file_descriptor = _wopen(UTF8ToWchar(binFilename).c_str(), |
|
_O_CREAT | _O_WRONLY | _O_TRUNC | _O_BINARY); |
|
__gnu_cxx::stdio_filebuf<char> wfile_buf( |
|
file_descriptor, std::ios_base::out | std::ios_base::binary); |
|
std::ostream output(&wfile_buf); |
|
if (!wfile_buf.is_open()) return false; |
|
#elif defined(_MSC_VER) |
|
std::ofstream output(UTF8ToWchar(binFilename).c_str(), std::ofstream::binary); |
|
if (!output.is_open()) return false; |
|
#else |
|
std::ofstream output(binFilename.c_str(), std::ofstream::binary); |
|
if (!output.is_open()) return false; |
|
#endif |
|
#else |
|
std::ofstream output(binFilename.c_str(), std::ofstream::binary); |
|
if (!output.is_open()) return false; |
|
#endif |
|
if (data.size() > 0) { |
|
output.write(reinterpret_cast<const char *>(&data[0]), |
|
std::streamsize(data.size())); |
|
} else { |
|
// Issue #229 |
|
// size 0 will be still valid buffer data. |
|
// write empty file. |
|
} |
|
return true; |
|
} |
|
|
|
#if 0 // FIXME(syoyo): not used. will be removed in the future release. |
|
static void SerializeParameterMap(ParameterMap ¶m, json &o) { |
|
for (ParameterMap::iterator paramIt = param.begin(); paramIt != param.end(); |
|
++paramIt) { |
|
if (paramIt->second.number_array.size()) { |
|
SerializeNumberArrayProperty<double>(paramIt->first, |
|
paramIt->second.number_array, o); |
|
} else if (paramIt->second.json_double_value.size()) { |
|
json json_double_value; |
|
for (std::map<std::string, double>::iterator it = |
|
paramIt->second.json_double_value.begin(); |
|
it != paramIt->second.json_double_value.end(); ++it) { |
|
if (it->first == "index") { |
|
json_double_value[it->first] = paramIt->second.TextureIndex(); |
|
} else { |
|
json_double_value[it->first] = it->second; |
|
} |
|
} |
|
|
|
o[paramIt->first] = json_double_value; |
|
} else if (!paramIt->second.string_value.empty()) { |
|
SerializeStringProperty(paramIt->first, paramIt->second.string_value, o); |
|
} else if (paramIt->second.has_number_value) { |
|
o[paramIt->first] = paramIt->second.number_value; |
|
} else { |
|
o[paramIt->first] = paramIt->second.bool_value; |
|
} |
|
} |
|
} |
|
#endif |
|
|
|
static void SerializeExtensionMap(const ExtensionMap &extensions, json &o) { |
|
if (!extensions.size()) return; |
|
|
|
json extMap; |
|
for (ExtensionMap::const_iterator extIt = extensions.begin(); |
|
extIt != extensions.end(); ++extIt) { |
|
// Allow an empty object for extension(#97) |
|
json ret; |
|
bool isNull = true; |
|
if (ValueToJson(extIt->second, &ret)) { |
|
isNull = JsonIsNull(ret); |
|
JsonAddMember(extMap, extIt->first.c_str(), std::move(ret)); |
|
} |
|
if (isNull) { |
|
if (!(extIt->first.empty())) { // name should not be empty, but for sure |
|
// create empty object so that an extension name is still included in |
|
// json. |
|
json empty; |
|
JsonSetObject(empty); |
|
JsonAddMember(extMap, extIt->first.c_str(), std::move(empty)); |
|
} |
|
} |
|
} |
|
JsonAddMember(o, "extensions", std::move(extMap)); |
|
} |
|
|
|
static void SerializeGltfAccessor(Accessor &accessor, json &o) { |
|
if (accessor.bufferView >= 0) |
|
SerializeNumberProperty<int>("bufferView", accessor.bufferView, o); |
|
|
|
if (accessor.byteOffset != 0) |
|
SerializeNumberProperty<int>("byteOffset", int(accessor.byteOffset), o); |
|
|
|
SerializeNumberProperty<int>("componentType", accessor.componentType, o); |
|
SerializeNumberProperty<size_t>("count", accessor.count, o); |
|
|
|
if ((accessor.componentType == TINYGLTF_COMPONENT_TYPE_FLOAT) || |
|
(accessor.componentType == TINYGLTF_COMPONENT_TYPE_DOUBLE)) { |
|
SerializeNumberArrayProperty<double>("min", accessor.minValues, o); |
|
SerializeNumberArrayProperty<double>("max", accessor.maxValues, o); |
|
} else { |
|
// Issue #301. Serialize as integer. |
|
// Assume int value is within [-2**31-1, 2**31-1] |
|
{ |
|
std::vector<int> values; |
|
std::transform(accessor.minValues.begin(), accessor.minValues.end(), |
|
std::back_inserter(values), |
|
[](double v) { return static_cast<int>(v); }); |
|
|
|
SerializeNumberArrayProperty<int>("min", values, o); |
|
} |
|
|
|
{ |
|
std::vector<int> values; |
|
std::transform(accessor.maxValues.begin(), accessor.maxValues.end(), |
|
std::back_inserter(values), |
|
[](double v) { return static_cast<int>(v); }); |
|
|
|
SerializeNumberArrayProperty<int>("max", values, o); |
|
} |
|
} |
|
|
|
if (accessor.normalized) |
|
SerializeValue("normalized", Value(accessor.normalized), o); |
|
std::string type; |
|
switch (accessor.type) { |
|
case TINYGLTF_TYPE_SCALAR: |
|
type = "SCALAR"; |
|
break; |
|
case TINYGLTF_TYPE_VEC2: |
|
type = "VEC2"; |
|
break; |
|
case TINYGLTF_TYPE_VEC3: |
|
type = "VEC3"; |
|
break; |
|
case TINYGLTF_TYPE_VEC4: |
|
type = "VEC4"; |
|
break; |
|
case TINYGLTF_TYPE_MAT2: |
|
type = "MAT2"; |
|
break; |
|
case TINYGLTF_TYPE_MAT3: |
|
type = "MAT3"; |
|
break; |
|
case TINYGLTF_TYPE_MAT4: |
|
type = "MAT4"; |
|
break; |
|
} |
|
|
|
SerializeStringProperty("type", type, o); |
|
if (!accessor.name.empty()) SerializeStringProperty("name", accessor.name, o); |
|
|
|
if (accessor.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", accessor.extras, o); |
|
} |
|
} |
|
|
|
static void SerializeGltfAnimationChannel(AnimationChannel &channel, json &o) { |
|
SerializeNumberProperty("sampler", channel.sampler, o); |
|
{ |
|
json target; |
|
SerializeNumberProperty("node", channel.target_node, target); |
|
SerializeStringProperty("path", channel.target_path, target); |
|
|
|
SerializeExtensionMap(channel.target_extensions, target); |
|
|
|
JsonAddMember(o, "target", std::move(target)); |
|
} |
|
|
|
if (channel.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", channel.extras, o); |
|
} |
|
|
|
SerializeExtensionMap(channel.extensions, o); |
|
} |
|
|
|
static void SerializeGltfAnimationSampler(AnimationSampler &sampler, json &o) { |
|
SerializeNumberProperty("input", sampler.input, o); |
|
SerializeNumberProperty("output", sampler.output, o); |
|
SerializeStringProperty("interpolation", sampler.interpolation, o); |
|
|
|
if (sampler.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", sampler.extras, o); |
|
} |
|
} |
|
|
|
static void SerializeGltfAnimation(Animation &animation, json &o) { |
|
if (!animation.name.empty()) |
|
SerializeStringProperty("name", animation.name, o); |
|
|
|
{ |
|
json channels; |
|
JsonReserveArray(channels, animation.channels.size()); |
|
for (unsigned int i = 0; i < animation.channels.size(); ++i) { |
|
json channel; |
|
AnimationChannel gltfChannel = animation.channels[i]; |
|
SerializeGltfAnimationChannel(gltfChannel, channel); |
|
JsonPushBack(channels, std::move(channel)); |
|
} |
|
|
|
JsonAddMember(o, "channels", std::move(channels)); |
|
} |
|
|
|
{ |
|
json samplers; |
|
JsonReserveArray(samplers, animation.samplers.size()); |
|
for (unsigned int i = 0; i < animation.samplers.size(); ++i) { |
|
json sampler; |
|
AnimationSampler gltfSampler = animation.samplers[i]; |
|
SerializeGltfAnimationSampler(gltfSampler, sampler); |
|
JsonPushBack(samplers, std::move(sampler)); |
|
} |
|
JsonAddMember(o, "samplers", std::move(samplers)); |
|
} |
|
|
|
if (animation.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", animation.extras, o); |
|
} |
|
|
|
SerializeExtensionMap(animation.extensions, o); |
|
} |
|
|
|
static void SerializeGltfAsset(Asset &asset, json &o) { |
|
if (!asset.generator.empty()) { |
|
SerializeStringProperty("generator", asset.generator, o); |
|
} |
|
|
|
if (!asset.copyright.empty()) { |
|
SerializeStringProperty("copyright", asset.copyright, o); |
|
} |
|
|
|
if (asset.version.empty()) { |
|
// Just in case |
|
// `version` must be defined |
|
asset.version = "2.0"; |
|
} |
|
|
|
// TODO(syoyo): Do we need to check if `version` is greater or equal to 2.0? |
|
SerializeStringProperty("version", asset.version, o); |
|
|
|
if (asset.extras.Keys().size()) { |
|
SerializeValue("extras", asset.extras, o); |
|
} |
|
|
|
SerializeExtensionMap(asset.extensions, o); |
|
} |
|
|
|
static void SerializeGltfBufferBin(Buffer &buffer, json &o, |
|
std::vector<unsigned char> &binBuffer) { |
|
SerializeNumberProperty("byteLength", buffer.data.size(), o); |
|
binBuffer = buffer.data; |
|
|
|
if (buffer.name.size()) SerializeStringProperty("name", buffer.name, o); |
|
|
|
if (buffer.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", buffer.extras, o); |
|
} |
|
} |
|
|
|
static void SerializeGltfBuffer(Buffer &buffer, json &o) { |
|
SerializeNumberProperty("byteLength", buffer.data.size(), o); |
|
SerializeGltfBufferData(buffer.data, o); |
|
|
|
if (buffer.name.size()) SerializeStringProperty("name", buffer.name, o); |
|
|
|
if (buffer.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", buffer.extras, o); |
|
} |
|
} |
|
|
|
static bool SerializeGltfBuffer(Buffer &buffer, json &o, |
|
const std::string &binFilename, |
|
const std::string &binBaseFilename) { |
|
if (!SerializeGltfBufferData(buffer.data, binFilename)) return false; |
|
SerializeNumberProperty("byteLength", buffer.data.size(), o); |
|
SerializeStringProperty("uri", binBaseFilename, o); |
|
|
|
if (buffer.name.size()) SerializeStringProperty("name", buffer.name, o); |
|
|
|
if (buffer.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", buffer.extras, o); |
|
} |
|
return true; |
|
} |
|
|
|
static void SerializeGltfBufferView(BufferView &bufferView, json &o) { |
|
SerializeNumberProperty("buffer", bufferView.buffer, o); |
|
SerializeNumberProperty<size_t>("byteLength", bufferView.byteLength, o); |
|
|
|
// byteStride is optional, minimum allowed is 4 |
|
if (bufferView.byteStride >= 4) { |
|
SerializeNumberProperty<size_t>("byteStride", bufferView.byteStride, o); |
|
} |
|
// byteOffset is optional, default is 0 |
|
if (bufferView.byteOffset > 0) { |
|
SerializeNumberProperty<size_t>("byteOffset", bufferView.byteOffset, o); |
|
} |
|
// Target is optional, check if it contains a valid value |
|
if (bufferView.target == TINYGLTF_TARGET_ARRAY_BUFFER || |
|
bufferView.target == TINYGLTF_TARGET_ELEMENT_ARRAY_BUFFER) { |
|
SerializeNumberProperty("target", bufferView.target, o); |
|
} |
|
if (bufferView.name.size()) { |
|
SerializeStringProperty("name", bufferView.name, o); |
|
} |
|
|
|
if (bufferView.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", bufferView.extras, o); |
|
} |
|
} |
|
|
|
static void SerializeGltfImage(Image &image, json &o) { |
|
// if uri empty, the mimeType and bufferview should be set |
|
if (image.uri.empty()) { |
|
SerializeStringProperty("mimeType", image.mimeType, o); |
|
SerializeNumberProperty<int>("bufferView", image.bufferView, o); |
|
} else { |
|
// TODO(syoyo): dlib::urilencode? |
|
SerializeStringProperty("uri", image.uri, o); |
|
} |
|
|
|
if (image.name.size()) { |
|
SerializeStringProperty("name", image.name, o); |
|
} |
|
|
|
if (image.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", image.extras, o); |
|
} |
|
|
|
SerializeExtensionMap(image.extensions, o); |
|
} |
|
|
|
static void SerializeGltfTextureInfo(TextureInfo &texinfo, json &o) { |
|
SerializeNumberProperty("index", texinfo.index, o); |
|
|
|
if (texinfo.texCoord != 0) { |
|
SerializeNumberProperty("texCoord", texinfo.texCoord, o); |
|
} |
|
|
|
if (texinfo.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", texinfo.extras, o); |
|
} |
|
|
|
SerializeExtensionMap(texinfo.extensions, o); |
|
} |
|
|
|
static void SerializeGltfNormalTextureInfo(NormalTextureInfo &texinfo, |
|
json &o) { |
|
SerializeNumberProperty("index", texinfo.index, o); |
|
|
|
if (texinfo.texCoord != 0) { |
|
SerializeNumberProperty("texCoord", texinfo.texCoord, o); |
|
} |
|
|
|
if (!TINYGLTF_DOUBLE_EQUAL(texinfo.scale, 1.0)) { |
|
SerializeNumberProperty("scale", texinfo.scale, o); |
|
} |
|
|
|
if (texinfo.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", texinfo.extras, o); |
|
} |
|
|
|
SerializeExtensionMap(texinfo.extensions, o); |
|
} |
|
|
|
static void SerializeGltfOcclusionTextureInfo(OcclusionTextureInfo &texinfo, |
|
json &o) { |
|
SerializeNumberProperty("index", texinfo.index, o); |
|
|
|
if (texinfo.texCoord != 0) { |
|
SerializeNumberProperty("texCoord", texinfo.texCoord, o); |
|
} |
|
|
|
if (!TINYGLTF_DOUBLE_EQUAL(texinfo.strength, 1.0)) { |
|
SerializeNumberProperty("strength", texinfo.strength, o); |
|
} |
|
|
|
if (texinfo.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", texinfo.extras, o); |
|
} |
|
|
|
SerializeExtensionMap(texinfo.extensions, o); |
|
} |
|
|
|
static void SerializeGltfPbrMetallicRoughness(PbrMetallicRoughness &pbr, |
|
json &o) { |
|
std::vector<double> default_baseColorFactor = {1.0, 1.0, 1.0, 1.0}; |
|
if (!Equals(pbr.baseColorFactor, default_baseColorFactor)) { |
|
SerializeNumberArrayProperty<double>("baseColorFactor", pbr.baseColorFactor, |
|
o); |
|
} |
|
|
|
if (!TINYGLTF_DOUBLE_EQUAL(pbr.metallicFactor, 1.0)) { |
|
SerializeNumberProperty("metallicFactor", pbr.metallicFactor, o); |
|
} |
|
|
|
if (!TINYGLTF_DOUBLE_EQUAL(pbr.roughnessFactor, 1.0)) { |
|
SerializeNumberProperty("roughnessFactor", pbr.roughnessFactor, o); |
|
} |
|
|
|
if (pbr.baseColorTexture.index > -1) { |
|
json texinfo; |
|
SerializeGltfTextureInfo(pbr.baseColorTexture, texinfo); |
|
JsonAddMember(o, "baseColorTexture", std::move(texinfo)); |
|
} |
|
|
|
if (pbr.metallicRoughnessTexture.index > -1) { |
|
json texinfo; |
|
SerializeGltfTextureInfo(pbr.metallicRoughnessTexture, texinfo); |
|
JsonAddMember(o, "metallicRoughnessTexture", std::move(texinfo)); |
|
} |
|
|
|
SerializeExtensionMap(pbr.extensions, o); |
|
|
|
if (pbr.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", pbr.extras, o); |
|
} |
|
} |
|
|
|
static void SerializeGltfMaterial(Material &material, json &o) { |
|
if (material.name.size()) { |
|
SerializeStringProperty("name", material.name, o); |
|
} |
|
|
|
// QUESTION(syoyo): Write material parameters regardless of its default value? |
|
|
|
if (!TINYGLTF_DOUBLE_EQUAL(material.alphaCutoff, 0.5)) { |
|
SerializeNumberProperty("alphaCutoff", material.alphaCutoff, o); |
|
} |
|
|
|
if (material.alphaMode.compare("OPAQUE") != 0) { |
|
SerializeStringProperty("alphaMode", material.alphaMode, o); |
|
} |
|
|
|
if (material.doubleSided != false) |
|
JsonAddMember(o, "doubleSided", json(material.doubleSided)); |
|
|
|
if (material.normalTexture.index > -1) { |
|
json texinfo; |
|
SerializeGltfNormalTextureInfo(material.normalTexture, texinfo); |
|
JsonAddMember(o, "normalTexture", std::move(texinfo)); |
|
} |
|
|
|
if (material.occlusionTexture.index > -1) { |
|
json texinfo; |
|
SerializeGltfOcclusionTextureInfo(material.occlusionTexture, texinfo); |
|
JsonAddMember(o, "occlusionTexture", std::move(texinfo)); |
|
} |
|
|
|
if (material.emissiveTexture.index > -1) { |
|
json texinfo; |
|
SerializeGltfTextureInfo(material.emissiveTexture, texinfo); |
|
JsonAddMember(o, "emissiveTexture", std::move(texinfo)); |
|
} |
|
|
|
std::vector<double> default_emissiveFactor = {0.0, 0.0, 0.0}; |
|
if (!Equals(material.emissiveFactor, default_emissiveFactor)) { |
|
SerializeNumberArrayProperty<double>("emissiveFactor", |
|
material.emissiveFactor, o); |
|
} |
|
|
|
{ |
|
json pbrMetallicRoughness; |
|
SerializeGltfPbrMetallicRoughness(material.pbrMetallicRoughness, |
|
pbrMetallicRoughness); |
|
// Issue 204 |
|
// Do not serialize `pbrMetallicRoughness` if pbrMetallicRoughness has all |
|
// default values(json is null). Otherwise it will serialize to |
|
// `pbrMetallicRoughness : null`, which cannot be read by other glTF |
|
// importers(and validators). |
|
// |
|
if (!JsonIsNull(pbrMetallicRoughness)) { |
|
JsonAddMember(o, "pbrMetallicRoughness", std::move(pbrMetallicRoughness)); |
|
} |
|
} |
|
|
|
#if 0 // legacy way. just for the record. |
|
if (material.values.size()) { |
|
json pbrMetallicRoughness; |
|
SerializeParameterMap(material.values, pbrMetallicRoughness); |
|
JsonAddMember(o, "pbrMetallicRoughness", std::move(pbrMetallicRoughness)); |
|
} |
|
|
|
SerializeParameterMap(material.additionalValues, o); |
|
#else |
|
|
|
#endif |
|
|
|
SerializeExtensionMap(material.extensions, o); |
|
|
|
if (material.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", material.extras, o); |
|
} |
|
} |
|
|
|
static void SerializeGltfMesh(Mesh &mesh, json &o) { |
|
json primitives; |
|
JsonReserveArray(primitives, mesh.primitives.size()); |
|
for (unsigned int i = 0; i < mesh.primitives.size(); ++i) { |
|
json primitive; |
|
const Primitive &gltfPrimitive = mesh.primitives[i]; // don't make a copy |
|
{ |
|
json attributes; |
|
for (auto attrIt = gltfPrimitive.attributes.begin(); |
|
attrIt != gltfPrimitive.attributes.end(); ++attrIt) { |
|
SerializeNumberProperty<int>(attrIt->first, attrIt->second, attributes); |
|
} |
|
|
|
JsonAddMember(primitive, "attributes", std::move(attributes)); |
|
} |
|
|
|
// Indices is optional |
|
if (gltfPrimitive.indices > -1) { |
|
SerializeNumberProperty<int>("indices", gltfPrimitive.indices, primitive); |
|
} |
|
// Material is optional |
|
if (gltfPrimitive.material > -1) { |
|
SerializeNumberProperty<int>("material", gltfPrimitive.material, |
|
primitive); |
|
} |
|
SerializeNumberProperty<int>("mode", gltfPrimitive.mode, primitive); |
|
|
|
// Morph targets |
|
if (gltfPrimitive.targets.size()) { |
|
json targets; |
|
JsonReserveArray(targets, gltfPrimitive.targets.size()); |
|
for (unsigned int k = 0; k < gltfPrimitive.targets.size(); ++k) { |
|
json targetAttributes; |
|
std::map<std::string, int> targetData = gltfPrimitive.targets[k]; |
|
for (std::map<std::string, int>::iterator attrIt = targetData.begin(); |
|
attrIt != targetData.end(); ++attrIt) { |
|
SerializeNumberProperty<int>(attrIt->first, attrIt->second, |
|
targetAttributes); |
|
} |
|
JsonPushBack(targets, std::move(targetAttributes)); |
|
} |
|
JsonAddMember(primitive, "targets", std::move(targets)); |
|
} |
|
|
|
SerializeExtensionMap(gltfPrimitive.extensions, primitive); |
|
|
|
if (gltfPrimitive.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", gltfPrimitive.extras, primitive); |
|
} |
|
|
|
JsonPushBack(primitives, std::move(primitive)); |
|
} |
|
|
|
JsonAddMember(o, "primitives", std::move(primitives)); |
|
|
|
if (mesh.weights.size()) { |
|
SerializeNumberArrayProperty<double>("weights", mesh.weights, o); |
|
} |
|
|
|
if (mesh.name.size()) { |
|
SerializeStringProperty("name", mesh.name, o); |
|
} |
|
|
|
SerializeExtensionMap(mesh.extensions, o); |
|
if (mesh.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", mesh.extras, o); |
|
} |
|
} |
|
|
|
static void SerializeSpotLight(SpotLight &spot, json &o) { |
|
SerializeNumberProperty("innerConeAngle", spot.innerConeAngle, o); |
|
SerializeNumberProperty("outerConeAngle", spot.outerConeAngle, o); |
|
SerializeExtensionMap(spot.extensions, o); |
|
if (spot.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", spot.extras, o); |
|
} |
|
} |
|
|
|
static void SerializeGltfLight(Light &light, json &o) { |
|
if (!light.name.empty()) SerializeStringProperty("name", light.name, o); |
|
SerializeNumberProperty("intensity", light.intensity, o); |
|
if (light.range > 0.0) { |
|
SerializeNumberProperty("range", light.range, o); |
|
} |
|
SerializeNumberArrayProperty("color", light.color, o); |
|
SerializeStringProperty("type", light.type, o); |
|
if (light.type == "spot") { |
|
json spot; |
|
SerializeSpotLight(light.spot, spot); |
|
JsonAddMember(o, "spot", std::move(spot)); |
|
} |
|
SerializeExtensionMap(light.extensions, o); |
|
if (light.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", light.extras, o); |
|
} |
|
} |
|
|
|
static void SerializeGltfNode(Node &node, json &o) { |
|
if (node.translation.size() > 0) { |
|
SerializeNumberArrayProperty<double>("translation", node.translation, o); |
|
} |
|
if (node.rotation.size() > 0) { |
|
SerializeNumberArrayProperty<double>("rotation", node.rotation, o); |
|
} |
|
if (node.scale.size() > 0) { |
|
SerializeNumberArrayProperty<double>("scale", node.scale, o); |
|
} |
|
if (node.matrix.size() > 0) { |
|
SerializeNumberArrayProperty<double>("matrix", node.matrix, o); |
|
} |
|
if (node.mesh != -1) { |
|
SerializeNumberProperty<int>("mesh", node.mesh, o); |
|
} |
|
|
|
if (node.skin != -1) { |
|
SerializeNumberProperty<int>("skin", node.skin, o); |
|
} |
|
|
|
if (node.camera != -1) { |
|
SerializeNumberProperty<int>("camera", node.camera, o); |
|
} |
|
|
|
if (node.weights.size() > 0) { |
|
SerializeNumberArrayProperty<double>("weights", node.weights, o); |
|
} |
|
|
|
if (node.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", node.extras, o); |
|
} |
|
|
|
SerializeExtensionMap(node.extensions, o); |
|
if (!node.name.empty()) SerializeStringProperty("name", node.name, o); |
|
SerializeNumberArrayProperty<int>("children", node.children, o); |
|
} |
|
|
|
static void SerializeGltfSampler(Sampler &sampler, json &o) { |
|
if (sampler.magFilter != -1) { |
|
SerializeNumberProperty("magFilter", sampler.magFilter, o); |
|
} |
|
if (sampler.minFilter != -1) { |
|
SerializeNumberProperty("minFilter", sampler.minFilter, o); |
|
} |
|
//SerializeNumberProperty("wrapR", sampler.wrapR, o); |
|
SerializeNumberProperty("wrapS", sampler.wrapS, o); |
|
SerializeNumberProperty("wrapT", sampler.wrapT, o); |
|
|
|
if (sampler.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", sampler.extras, o); |
|
} |
|
} |
|
|
|
static void SerializeGltfOrthographicCamera(const OrthographicCamera &camera, |
|
json &o) { |
|
SerializeNumberProperty("zfar", camera.zfar, o); |
|
SerializeNumberProperty("znear", camera.znear, o); |
|
SerializeNumberProperty("xmag", camera.xmag, o); |
|
SerializeNumberProperty("ymag", camera.ymag, o); |
|
|
|
if (camera.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", camera.extras, o); |
|
} |
|
} |
|
|
|
static void SerializeGltfPerspectiveCamera(const PerspectiveCamera &camera, |
|
json &o) { |
|
SerializeNumberProperty("zfar", camera.zfar, o); |
|
SerializeNumberProperty("znear", camera.znear, o); |
|
if (camera.aspectRatio > 0) { |
|
SerializeNumberProperty("aspectRatio", camera.aspectRatio, o); |
|
} |
|
|
|
if (camera.yfov > 0) { |
|
SerializeNumberProperty("yfov", camera.yfov, o); |
|
} |
|
|
|
if (camera.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", camera.extras, o); |
|
} |
|
} |
|
|
|
static void SerializeGltfCamera(const Camera &camera, json &o) { |
|
SerializeStringProperty("type", camera.type, o); |
|
if (!camera.name.empty()) { |
|
SerializeStringProperty("name", camera.name, o); |
|
} |
|
|
|
if (camera.type.compare("orthographic") == 0) { |
|
json orthographic; |
|
SerializeGltfOrthographicCamera(camera.orthographic, orthographic); |
|
JsonAddMember(o, "orthographic", std::move(orthographic)); |
|
} else if (camera.type.compare("perspective") == 0) { |
|
json perspective; |
|
SerializeGltfPerspectiveCamera(camera.perspective, perspective); |
|
JsonAddMember(o, "perspective", std::move(perspective)); |
|
} else { |
|
// ??? |
|
} |
|
|
|
if (camera.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", camera.extras, o); |
|
} |
|
SerializeExtensionMap(camera.extensions, o); |
|
} |
|
|
|
static void SerializeGltfScene(Scene &scene, json &o) { |
|
SerializeNumberArrayProperty<int>("nodes", scene.nodes, o); |
|
|
|
if (scene.name.size()) { |
|
SerializeStringProperty("name", scene.name, o); |
|
} |
|
if (scene.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", scene.extras, o); |
|
} |
|
SerializeExtensionMap(scene.extensions, o); |
|
} |
|
|
|
static void SerializeGltfSkin(Skin &skin, json &o) { |
|
if (skin.inverseBindMatrices != -1) |
|
SerializeNumberProperty("inverseBindMatrices", skin.inverseBindMatrices, o); |
|
|
|
SerializeNumberArrayProperty<int>("joints", skin.joints, o); |
|
SerializeNumberProperty("skeleton", skin.skeleton, o); |
|
if (skin.name.size()) { |
|
SerializeStringProperty("name", skin.name, o); |
|
} |
|
} |
|
|
|
static void SerializeGltfTexture(Texture &texture, json &o) { |
|
if (texture.sampler > -1) { |
|
SerializeNumberProperty("sampler", texture.sampler, o); |
|
} |
|
if (texture.source > -1) { |
|
SerializeNumberProperty("source", texture.source, o); |
|
} |
|
if (texture.name.size()) { |
|
SerializeStringProperty("name", texture.name, o); |
|
} |
|
if (texture.extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", texture.extras, o); |
|
} |
|
SerializeExtensionMap(texture.extensions, o); |
|
} |
|
|
|
/// |
|
/// Serialize all properties except buffers and images. |
|
/// |
|
static void SerializeGltfModel(Model *model, json &o) { |
|
// ACCESSORS |
|
if (model->accessors.size()) { |
|
json accessors; |
|
JsonReserveArray(accessors, model->accessors.size()); |
|
for (unsigned int i = 0; i < model->accessors.size(); ++i) { |
|
json accessor; |
|
SerializeGltfAccessor(model->accessors[i], accessor); |
|
JsonPushBack(accessors, std::move(accessor)); |
|
} |
|
JsonAddMember(o, "accessors", std::move(accessors)); |
|
} |
|
|
|
// ANIMATIONS |
|
if (model->animations.size()) { |
|
json animations; |
|
JsonReserveArray(animations, model->animations.size()); |
|
for (unsigned int i = 0; i < model->animations.size(); ++i) { |
|
if (model->animations[i].channels.size()) { |
|
json animation; |
|
SerializeGltfAnimation(model->animations[i], animation); |
|
JsonPushBack(animations, std::move(animation)); |
|
} |
|
} |
|
|
|
JsonAddMember(o, "animations", std::move(animations)); |
|
} |
|
|
|
// ASSET |
|
json asset; |
|
SerializeGltfAsset(model->asset, asset); |
|
JsonAddMember(o, "asset", std::move(asset)); |
|
|
|
// BUFFERVIEWS |
|
if (model->bufferViews.size()) { |
|
json bufferViews; |
|
JsonReserveArray(bufferViews, model->bufferViews.size()); |
|
for (unsigned int i = 0; i < model->bufferViews.size(); ++i) { |
|
json bufferView; |
|
SerializeGltfBufferView(model->bufferViews[i], bufferView); |
|
JsonPushBack(bufferViews, std::move(bufferView)); |
|
} |
|
JsonAddMember(o, "bufferViews", std::move(bufferViews)); |
|
} |
|
|
|
// Extensions required |
|
if (model->extensionsRequired.size()) { |
|
SerializeStringArrayProperty("extensionsRequired", |
|
model->extensionsRequired, o); |
|
} |
|
|
|
// MATERIALS |
|
if (model->materials.size()) { |
|
json materials; |
|
JsonReserveArray(materials, model->materials.size()); |
|
for (unsigned int i = 0; i < model->materials.size(); ++i) { |
|
json material; |
|
SerializeGltfMaterial(model->materials[i], material); |
|
|
|
if (JsonIsNull(material)) { |
|
// Issue 294. |
|
// `material` does not have any required parameters |
|
// so the result may be null(unmodified) when all material parameters |
|
// have default value. |
|
// |
|
// null is not allowed thus we create an empty JSON object. |
|
JsonSetObject(material); |
|
} |
|
JsonPushBack(materials, std::move(material)); |
|
} |
|
JsonAddMember(o, "materials", std::move(materials)); |
|
} |
|
|
|
// MESHES |
|
if (model->meshes.size()) { |
|
json meshes; |
|
JsonReserveArray(meshes, model->meshes.size()); |
|
for (unsigned int i = 0; i < model->meshes.size(); ++i) { |
|
json mesh; |
|
SerializeGltfMesh(model->meshes[i], mesh); |
|
JsonPushBack(meshes, std::move(mesh)); |
|
} |
|
JsonAddMember(o, "meshes", std::move(meshes)); |
|
} |
|
|
|
// NODES |
|
if (model->nodes.size()) { |
|
json nodes; |
|
JsonReserveArray(nodes, model->nodes.size()); |
|
for (unsigned int i = 0; i < model->nodes.size(); ++i) { |
|
json node; |
|
SerializeGltfNode(model->nodes[i], node); |
|
JsonPushBack(nodes, std::move(node)); |
|
} |
|
JsonAddMember(o, "nodes", std::move(nodes)); |
|
} |
|
|
|
// SCENE |
|
if (model->defaultScene > -1) { |
|
SerializeNumberProperty<int>("scene", model->defaultScene, o); |
|
} |
|
|
|
// SCENES |
|
if (model->scenes.size()) { |
|
json scenes; |
|
JsonReserveArray(scenes, model->scenes.size()); |
|
for (unsigned int i = 0; i < model->scenes.size(); ++i) { |
|
json currentScene; |
|
SerializeGltfScene(model->scenes[i], currentScene); |
|
JsonPushBack(scenes, std::move(currentScene)); |
|
} |
|
JsonAddMember(o, "scenes", std::move(scenes)); |
|
} |
|
|
|
// SKINS |
|
if (model->skins.size()) { |
|
json skins; |
|
JsonReserveArray(skins, model->skins.size()); |
|
for (unsigned int i = 0; i < model->skins.size(); ++i) { |
|
json skin; |
|
SerializeGltfSkin(model->skins[i], skin); |
|
JsonPushBack(skins, std::move(skin)); |
|
} |
|
JsonAddMember(o, "skins", std::move(skins)); |
|
} |
|
|
|
// TEXTURES |
|
if (model->textures.size()) { |
|
json textures; |
|
JsonReserveArray(textures, model->textures.size()); |
|
for (unsigned int i = 0; i < model->textures.size(); ++i) { |
|
json texture; |
|
SerializeGltfTexture(model->textures[i], texture); |
|
JsonPushBack(textures, std::move(texture)); |
|
} |
|
JsonAddMember(o, "textures", std::move(textures)); |
|
} |
|
|
|
// SAMPLERS |
|
if (model->samplers.size()) { |
|
json samplers; |
|
JsonReserveArray(samplers, model->samplers.size()); |
|
for (unsigned int i = 0; i < model->samplers.size(); ++i) { |
|
json sampler; |
|
SerializeGltfSampler(model->samplers[i], sampler); |
|
JsonPushBack(samplers, std::move(sampler)); |
|
} |
|
JsonAddMember(o, "samplers", std::move(samplers)); |
|
} |
|
|
|
// CAMERAS |
|
if (model->cameras.size()) { |
|
json cameras; |
|
JsonReserveArray(cameras, model->cameras.size()); |
|
for (unsigned int i = 0; i < model->cameras.size(); ++i) { |
|
json camera; |
|
SerializeGltfCamera(model->cameras[i], camera); |
|
JsonPushBack(cameras, std::move(camera)); |
|
} |
|
JsonAddMember(o, "cameras", std::move(cameras)); |
|
} |
|
|
|
// EXTENSIONS |
|
SerializeExtensionMap(model->extensions, o); |
|
|
|
auto extensionsUsed = model->extensionsUsed; |
|
|
|
// LIGHTS as KHR_lights_punctual |
|
if (model->lights.size()) { |
|
json lights; |
|
JsonReserveArray(lights, model->lights.size()); |
|
for (unsigned int i = 0; i < model->lights.size(); ++i) { |
|
json light; |
|
SerializeGltfLight(model->lights[i], light); |
|
JsonPushBack(lights, std::move(light)); |
|
} |
|
json khr_lights_cmn; |
|
JsonAddMember(khr_lights_cmn, "lights", std::move(lights)); |
|
json ext_j; |
|
|
|
{ |
|
json_const_iterator it; |
|
if (FindMember(o, "extensions", it)) { |
|
JsonAssign(ext_j, GetValue(it)); |
|
} |
|
} |
|
|
|
JsonAddMember(ext_j, "KHR_lights_punctual", std::move(khr_lights_cmn)); |
|
|
|
JsonAddMember(o, "extensions", std::move(ext_j)); |
|
|
|
// Also add "KHR_lights_punctual" to `extensionsUsed` |
|
{ |
|
auto has_khr_lights_punctual = |
|
std::find_if(extensionsUsed.begin(), extensionsUsed.end(), |
|
[](const std::string &s) { |
|
return (s.compare("KHR_lights_punctual") == 0); |
|
}); |
|
|
|
if (has_khr_lights_punctual == extensionsUsed.end()) { |
|
extensionsUsed.push_back("KHR_lights_punctual"); |
|
} |
|
} |
|
} |
|
|
|
// Extensions used |
|
if (extensionsUsed.size()) { |
|
SerializeStringArrayProperty("extensionsUsed", extensionsUsed, o); |
|
} |
|
|
|
// EXTRAS |
|
if (model->extras.Type() != NULL_TYPE) { |
|
SerializeValue("extras", model->extras, o); |
|
} |
|
} |
|
|
|
static bool WriteGltfStream(std::ostream &stream, const std::string &content) { |
|
stream << content << std::endl; |
|
return true; |
|
} |
|
|
|
static bool WriteGltfFile(const std::string &output, |
|
const std::string &content) { |
|
#ifdef _WIN32 |
|
#if defined(_MSC_VER) |
|
std::ofstream gltfFile(UTF8ToWchar(output).c_str()); |
|
#elif defined(__GLIBCXX__) |
|
int file_descriptor = _wopen(UTF8ToWchar(output).c_str(), |
|
_O_CREAT | _O_WRONLY | _O_TRUNC | _O_BINARY); |
|
__gnu_cxx::stdio_filebuf<char> wfile_buf( |
|
file_descriptor, std::ios_base::out | std::ios_base::binary); |
|
std::ostream gltfFile(&wfile_buf); |
|
if (!wfile_buf.is_open()) return false; |
|
#else |
|
std::ofstream gltfFile(output.c_str()); |
|
if (!gltfFile.is_open()) return false; |
|
#endif |
|
#else |
|
std::ofstream gltfFile(output.c_str()); |
|
if (!gltfFile.is_open()) return false; |
|
#endif |
|
return WriteGltfStream(gltfFile, content); |
|
} |
|
|
|
static void WriteBinaryGltfStream(std::ostream &stream, |
|
const std::string &content, |
|
const std::vector<unsigned char> &binBuffer) { |
|
const std::string header = "glTF"; |
|
const int version = 2; |
|
|
|
// https://stackoverflow.com/questions/3407012/c-rounding-up-to-the-nearest-multiple-of-a-number |
|
auto roundUp = [](uint32_t numToRound, uint32_t multiple) { |
|
if (multiple == 0) return numToRound; |
|
|
|
uint32_t remainder = numToRound % multiple; |
|
if (remainder == 0) return numToRound; |
|
|
|
return numToRound + multiple - remainder; |
|
}; |
|
|
|
const uint32_t padding_size = |
|
roundUp(uint32_t(content.size()), 4) - uint32_t(content.size()); |
|
|
|
// 12 bytes for header, JSON content length, 8 bytes for JSON chunk info. |
|
// Chunk data must be located at 4-byte boundary. |
|
const uint32_t length = |
|
12 + 8 + roundUp(uint32_t(content.size()), 4) + |
|
(binBuffer.size() ? (8 + roundUp(uint32_t(binBuffer.size()), 4)) : 0); |
|
|
|
stream.write(header.c_str(), std::streamsize(header.size())); |
|
stream.write(reinterpret_cast<const char *>(&version), sizeof(version)); |
|
stream.write(reinterpret_cast<const char *>(&length), sizeof(length)); |
|
|
|
// JSON chunk info, then JSON data |
|
const uint32_t model_length = uint32_t(content.size()) + padding_size; |
|
const uint32_t model_format = 0x4E4F534A; |
|
stream.write(reinterpret_cast<const char *>(&model_length), |
|
sizeof(model_length)); |
|
stream.write(reinterpret_cast<const char *>(&model_format), |
|
sizeof(model_format)); |
|
stream.write(content.c_str(), std::streamsize(content.size())); |
|
|
|
// Chunk must be multiplies of 4, so pad with spaces |
|
if (padding_size > 0) { |
|
const std::string padding = std::string(size_t(padding_size), ' '); |
|
stream.write(padding.c_str(), std::streamsize(padding.size())); |
|
} |
|
if (binBuffer.size() > 0) { |
|
const uint32_t bin_padding_size = |
|
roundUp(uint32_t(binBuffer.size()), 4) - uint32_t(binBuffer.size()); |
|
// BIN chunk info, then BIN data |
|
const uint32_t bin_length = uint32_t(binBuffer.size()) + bin_padding_size; |
|
const uint32_t bin_format = 0x004e4942; |
|
stream.write(reinterpret_cast<const char *>(&bin_length), |
|
sizeof(bin_length)); |
|
stream.write(reinterpret_cast<const char *>(&bin_format), |
|
sizeof(bin_format)); |
|
stream.write(reinterpret_cast<const char *>(binBuffer.data()), |
|
std::streamsize(binBuffer.size())); |
|
// Chunksize must be multiplies of 4, so pad with zeroes |
|
if (bin_padding_size > 0) { |
|
const std::vector<unsigned char> padding = |
|
std::vector<unsigned char>(size_t(bin_padding_size), 0); |
|
stream.write(reinterpret_cast<const char *>(padding.data()), |
|
std::streamsize(padding.size())); |
|
} |
|
} |
|
} |
|
|
|
static void WriteBinaryGltfFile(const std::string &output, |
|
const std::string &content, |
|
const std::vector<unsigned char> &binBuffer) { |
|
#ifdef _WIN32 |
|
#if defined(_MSC_VER) |
|
std::ofstream gltfFile(UTF8ToWchar(output).c_str(), std::ios::binary); |
|
#elif defined(__GLIBCXX__) |
|
int file_descriptor = _wopen(UTF8ToWchar(output).c_str(), |
|
_O_CREAT | _O_WRONLY | _O_TRUNC | _O_BINARY); |
|
__gnu_cxx::stdio_filebuf<char> wfile_buf( |
|
file_descriptor, std::ios_base::out | std::ios_base::binary); |
|
std::ostream gltfFile(&wfile_buf); |
|
#else |
|
std::ofstream gltfFile(output.c_str(), std::ios::binary); |
|
#endif |
|
#else |
|
std::ofstream gltfFile(output.c_str(), std::ios::binary); |
|
#endif |
|
WriteBinaryGltfStream(gltfFile, content, binBuffer); |
|
} |
|
|
|
bool TinyGLTF::WriteGltfSceneToStream(Model *model, std::ostream &stream, |
|
bool prettyPrint = true, |
|
bool writeBinary = false) { |
|
JsonDocument output; |
|
|
|
/// Serialize all properties except buffers and images. |
|
SerializeGltfModel(model, output); |
|
|
|
// BUFFERS |
|
std::vector<unsigned char> binBuffer; |
|
if (model->buffers.size()) { |
|
json buffers; |
|
JsonReserveArray(buffers, model->buffers.size()); |
|
for (unsigned int i = 0; i < model->buffers.size(); ++i) { |
|
json buffer; |
|
if (writeBinary && i == 0 && model->buffers[i].uri.empty()) { |
|
SerializeGltfBufferBin(model->buffers[i], buffer, binBuffer); |
|
} else { |
|
SerializeGltfBuffer(model->buffers[i], buffer); |
|
} |
|
JsonPushBack(buffers, std::move(buffer)); |
|
} |
|
JsonAddMember(output, "buffers", std::move(buffers)); |
|
} |
|
|
|
// IMAGES |
|
if (model->images.size()) { |
|
json images; |
|
JsonReserveArray(images, model->images.size()); |
|
for (unsigned int i = 0; i < model->images.size(); ++i) { |
|
json image; |
|
|
|
std::string dummystring = ""; |
|
// UpdateImageObject need baseDir but only uses it if embeddedImages is |
|
// enabled, since we won't write separate images when writing to a stream |
|
// we |
|
UpdateImageObject(model->images[i], dummystring, int(i), false, |
|
&this->WriteImageData, this->write_image_user_data_); |
|
SerializeGltfImage(model->images[i], image); |
|
JsonPushBack(images, std::move(image)); |
|
} |
|
JsonAddMember(output, "images", std::move(images)); |
|
} |
|
|
|
if (writeBinary) { |
|
WriteBinaryGltfStream(stream, JsonToString(output), binBuffer); |
|
} else { |
|
WriteGltfStream(stream, JsonToString(output, prettyPrint ? 2 : -1)); |
|
} |
|
|
|
return true; |
|
} |
|
|
|
bool TinyGLTF::WriteGltfSceneToFile(Model *model, const std::string &filename, |
|
bool embedImages = false, |
|
bool embedBuffers = false, |
|
bool prettyPrint = true, |
|
bool writeBinary = false) { |
|
JsonDocument output; |
|
std::string defaultBinFilename = GetBaseFilename(filename); |
|
std::string defaultBinFileExt = ".bin"; |
|
std::string::size_type pos = |
|
defaultBinFilename.rfind('.', defaultBinFilename.length()); |
|
|
|
if (pos != std::string::npos) { |
|
defaultBinFilename = defaultBinFilename.substr(0, pos); |
|
} |
|
std::string baseDir = GetBaseDir(filename); |
|
if (baseDir.empty()) { |
|
baseDir = "./"; |
|
} |
|
/// Serialize all properties except buffers and images. |
|
SerializeGltfModel(model, output); |
|
|
|
// BUFFERS |
|
std::vector<std::string> usedUris; |
|
std::vector<unsigned char> binBuffer; |
|
if (model->buffers.size()) { |
|
json buffers; |
|
JsonReserveArray(buffers, model->buffers.size()); |
|
for (unsigned int i = 0; i < model->buffers.size(); ++i) { |
|
json buffer; |
|
if (writeBinary && i == 0 && model->buffers[i].uri.empty()) { |
|
SerializeGltfBufferBin(model->buffers[i], buffer, binBuffer); |
|
} else if (embedBuffers) { |
|
SerializeGltfBuffer(model->buffers[i], buffer); |
|
} else { |
|
std::string binSavePath; |
|
std::string binUri; |
|
if (!model->buffers[i].uri.empty() && |
|
!IsDataURI(model->buffers[i].uri)) { |
|
binUri = model->buffers[i].uri; |
|
} else { |
|
binUri = defaultBinFilename + defaultBinFileExt; |
|
bool inUse = true; |
|
int numUsed = 0; |
|
while (inUse) { |
|
inUse = false; |
|
for (const std::string &usedName : usedUris) { |
|
if (binUri.compare(usedName) != 0) continue; |
|
inUse = true; |
|
binUri = defaultBinFilename + std::to_string(numUsed++) + |
|
defaultBinFileExt; |
|
break; |
|
} |
|
} |
|
} |
|
usedUris.push_back(binUri); |
|
binSavePath = JoinPath(baseDir, binUri); |
|
if (!SerializeGltfBuffer(model->buffers[i], buffer, binSavePath, |
|
binUri)) { |
|
return false; |
|
} |
|
} |
|
JsonPushBack(buffers, std::move(buffer)); |
|
} |
|
JsonAddMember(output, "buffers", std::move(buffers)); |
|
} |
|
|
|
// IMAGES |
|
if (model->images.size()) { |
|
json images; |
|
JsonReserveArray(images, model->images.size()); |
|
for (unsigned int i = 0; i < model->images.size(); ++i) { |
|
json image; |
|
|
|
UpdateImageObject(model->images[i], baseDir, int(i), embedImages, |
|
&this->WriteImageData, this->write_image_user_data_); |
|
SerializeGltfImage(model->images[i], image); |
|
JsonPushBack(images, std::move(image)); |
|
} |
|
JsonAddMember(output, "images", std::move(images)); |
|
} |
|
|
|
if (writeBinary) { |
|
WriteBinaryGltfFile(filename, JsonToString(output), binBuffer); |
|
} else { |
|
WriteGltfFile(filename, JsonToString(output, (prettyPrint ? 2 : -1))); |
|
} |
|
|
|
return true; |
|
} |
|
|
|
} // namespace tinygltf |
|
|
|
#ifdef __clang__ |
|
#pragma clang diagnostic pop |
|
#endif |
|
|
|
#endif // TINYGLTF_IMPLEMENTATION
|
|
|