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* remove roompoly * git subrepo pull --force tools/ZAPD subrepo: subdir: "tools/ZAPD" merged: "fd4d53a26" upstream: origin: "https://github.com/zeldaret/ZAPD.git" branch: "master" commit: "fd4d53a26" git-subrepo: version: "0.4.3" origin: "https://github.com/ingydotnet/git-subrepo.git" commit: "2f68596"
7584 lines
225 KiB
C++
7584 lines
225 KiB
C++
//
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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 - 2020 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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// - v2.4.2 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 comparsion 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 <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<const 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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double 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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/// Agregate 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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|
}
|
|
return -1;
|
|
}
|
|
|
|
/// Return the index of a texture coordinate set if this Parameter is a
|
|
/// texture map. Returned value is only valid if the parameter represent a
|
|
/// texture from a material
|
|
int TextureTexCoord() const {
|
|
const auto it = json_double_value.find("texCoord");
|
|
if (it != std::end(json_double_value)) {
|
|
return int(it->second);
|
|
}
|
|
// As per the spec, if texCoord is ommited, this parameter is 0
|
|
return 0;
|
|
}
|
|
|
|
/// Return the scale of a texture if this Parameter is a normal texture map.
|
|
/// Returned value is only valid if the parameter represent a normal texture
|
|
/// from a material
|
|
double TextureScale() const {
|
|
const auto it = json_double_value.find("scale");
|
|
if (it != std::end(json_double_value)) {
|
|
return it->second;
|
|
}
|
|
// As per the spec, if scale is ommited, this paramter is 1
|
|
return 1;
|
|
}
|
|
|
|
/// Return the strength of a texture if this Parameter is a an occlusion map.
|
|
/// Returned value is only valid if the parameter represent an occlusion map
|
|
/// from a material
|
|
double TextureStrength() const {
|
|
const auto it = json_double_value.find("strength");
|
|
if (it != std::end(json_double_value)) {
|
|
return it->second;
|
|
}
|
|
// As per the spec, if strenghth is ommited, this parameter is 1
|
|
return 1;
|
|
}
|
|
|
|
/// Material factor, like the roughness or metalness of a material
|
|
/// Returned value is only valid if the parameter represent a texture from a
|
|
/// material
|
|
double Factor() const { return number_value; }
|
|
|
|
/// Return the color of a material
|
|
/// Returned value is only valid if the parameter represent a texture from a
|
|
/// material
|
|
ColorValue ColorFactor() const {
|
|
return {
|
|
{// this agregate intialize the std::array object, and uses C++11 RVO.
|
|
number_array[0], number_array[1], number_array[2],
|
|
(number_array.size() > 3 ? number_array[3] : 1.0)}};
|
|
}
|
|
|
|
Parameter() = default;
|
|
DEFAULT_METHODS(Parameter)
|
|
bool operator==(const Parameter &) const;
|
|
};
|
|
|
|
#ifdef __clang__
|
|
#pragma clang diagnostic pop
|
|
#endif
|
|
|
|
#ifdef __clang__
|
|
#pragma clang diagnostic push
|
|
#pragma clang diagnostic ignored "-Wpadded"
|
|
#endif
|
|
|
|
typedef std::map<std::string, Parameter> ParameterMap;
|
|
typedef std::map<std::string, Value> ExtensionMap;
|
|
|
|
struct AnimationChannel {
|
|
int sampler; // required
|
|
int target_node; // required (index of the node to target)
|
|
std::string target_path; // required in ["translation", "rotation", "scale",
|
|
// "weights"]
|
|
Value extras;
|
|
ExtensionMap extensions;
|
|
ExtensionMap target_extensions;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
std::string target_extensions_json_string;
|
|
|
|
AnimationChannel() : sampler(-1), target_node(-1) {}
|
|
DEFAULT_METHODS(AnimationChannel)
|
|
bool operator==(const AnimationChannel &) const;
|
|
};
|
|
|
|
struct AnimationSampler {
|
|
int input; // required
|
|
int output; // required
|
|
std::string interpolation; // "LINEAR", "STEP","CUBICSPLINE" or user defined
|
|
// string. default "LINEAR"
|
|
Value extras;
|
|
ExtensionMap extensions;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
|
|
AnimationSampler() : input(-1), output(-1), interpolation("LINEAR") {}
|
|
DEFAULT_METHODS(AnimationSampler)
|
|
bool operator==(const AnimationSampler &) const;
|
|
};
|
|
|
|
struct Animation {
|
|
std::string name;
|
|
std::vector<AnimationChannel> channels;
|
|
std::vector<AnimationSampler> samplers;
|
|
Value extras;
|
|
ExtensionMap extensions;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
|
|
Animation() = default;
|
|
DEFAULT_METHODS(Animation)
|
|
bool operator==(const Animation &) const;
|
|
};
|
|
|
|
struct Skin {
|
|
std::string name;
|
|
int inverseBindMatrices; // required here but not in the spec
|
|
int skeleton; // The index of the node used as a skeleton root
|
|
std::vector<int> joints; // Indices of skeleton nodes
|
|
|
|
Value extras;
|
|
ExtensionMap extensions;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
|
|
Skin() {
|
|
inverseBindMatrices = -1;
|
|
skeleton = -1;
|
|
}
|
|
DEFAULT_METHODS(Skin)
|
|
bool operator==(const Skin &) const;
|
|
};
|
|
|
|
struct Sampler {
|
|
std::string name;
|
|
// glTF 2.0 spec does not define default value for `minFilter` and
|
|
// `magFilter`. Set -1 in TinyGLTF(issue #186)
|
|
int minFilter =
|
|
-1; // optional. -1 = no filter defined. ["NEAREST", "LINEAR",
|
|
// "NEAREST_MIPMAP_LINEAR", "LINEAR_MIPMAP_NEAREST",
|
|
// "NEAREST_MIPMAP_LINEAR", "LINEAR_MIPMAP_LINEAR"]
|
|
int magFilter =
|
|
-1; // optional. -1 = no filter defined. ["NEAREST", "LINEAR"]
|
|
int wrapS =
|
|
TINYGLTF_TEXTURE_WRAP_REPEAT; // ["CLAMP_TO_EDGE", "MIRRORED_REPEAT",
|
|
// "REPEAT"], default "REPEAT"
|
|
int wrapT =
|
|
TINYGLTF_TEXTURE_WRAP_REPEAT; // ["CLAMP_TO_EDGE", "MIRRORED_REPEAT",
|
|
// "REPEAT"], default "REPEAT"
|
|
int wrapR = TINYGLTF_TEXTURE_WRAP_REPEAT; // TinyGLTF extension
|
|
|
|
Value extras;
|
|
ExtensionMap extensions;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
|
|
Sampler()
|
|
: minFilter(-1),
|
|
magFilter(-1),
|
|
wrapS(TINYGLTF_TEXTURE_WRAP_REPEAT),
|
|
wrapT(TINYGLTF_TEXTURE_WRAP_REPEAT),
|
|
wrapR(TINYGLTF_TEXTURE_WRAP_REPEAT) {}
|
|
DEFAULT_METHODS(Sampler)
|
|
bool operator==(const Sampler &) const;
|
|
};
|
|
|
|
struct Image {
|
|
std::string name;
|
|
int width;
|
|
int height;
|
|
int component;
|
|
int bits; // bit depth per channel. 8(byte), 16 or 32.
|
|
int pixel_type; // pixel type(TINYGLTF_COMPONENT_TYPE_***). usually
|
|
// UBYTE(bits = 8) or USHORT(bits = 16)
|
|
std::vector<unsigned char> image;
|
|
int bufferView; // (required if no uri)
|
|
std::string mimeType; // (required if no uri) ["image/jpeg", "image/png",
|
|
// "image/bmp", "image/gif"]
|
|
std::string uri; // (required if no mimeType) uri is not decoded(e.g.
|
|
// whitespace may be represented as %20)
|
|
Value extras;
|
|
ExtensionMap extensions;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
|
|
// When this flag is true, data is stored to `image` in as-is format(e.g. jpeg
|
|
// compressed for "image/jpeg" mime) This feature is good if you use custom
|
|
// image loader function. (e.g. delayed decoding of images for faster glTF
|
|
// parsing) Default parser for Image does not provide as-is loading feature at
|
|
// the moment. (You can manipulate this by providing your own LoadImageData
|
|
// function)
|
|
bool as_is;
|
|
|
|
Image() : as_is(false) {
|
|
bufferView = -1;
|
|
width = -1;
|
|
height = -1;
|
|
component = -1;
|
|
}
|
|
DEFAULT_METHODS(Image)
|
|
|
|
bool operator==(const Image &) const;
|
|
};
|
|
|
|
struct Texture {
|
|
std::string name;
|
|
|
|
int sampler;
|
|
int source;
|
|
Value extras;
|
|
ExtensionMap extensions;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
|
|
Texture() : sampler(-1), source(-1) {}
|
|
DEFAULT_METHODS(Texture)
|
|
|
|
bool operator==(const Texture &) const;
|
|
};
|
|
|
|
struct TextureInfo {
|
|
int index = -1; // required.
|
|
int texCoord; // The set index of texture's TEXCOORD attribute used for
|
|
// texture coordinate mapping.
|
|
|
|
Value extras;
|
|
ExtensionMap extensions;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
|
|
TextureInfo() : index(-1), texCoord(0) {}
|
|
DEFAULT_METHODS(TextureInfo)
|
|
bool operator==(const TextureInfo &) const;
|
|
};
|
|
|
|
struct NormalTextureInfo {
|
|
int index = -1; // required
|
|
int texCoord; // The set index of texture's TEXCOORD attribute used for
|
|
// texture coordinate mapping.
|
|
double scale; // scaledNormal = normalize((<sampled normal texture value>
|
|
// * 2.0 - 1.0) * vec3(<normal scale>, <normal scale>, 1.0))
|
|
|
|
Value extras;
|
|
ExtensionMap extensions;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
|
|
NormalTextureInfo() : index(-1), texCoord(0), scale(1.0) {}
|
|
DEFAULT_METHODS(NormalTextureInfo)
|
|
bool operator==(const NormalTextureInfo &) const;
|
|
};
|
|
|
|
struct OcclusionTextureInfo {
|
|
int index = -1; // required
|
|
int texCoord; // The set index of texture's TEXCOORD attribute used for
|
|
// texture coordinate mapping.
|
|
double strength; // occludedColor = lerp(color, color * <sampled occlusion
|
|
// texture value>, <occlusion strength>)
|
|
|
|
Value extras;
|
|
ExtensionMap extensions;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
|
|
OcclusionTextureInfo() : index(-1), texCoord(0), strength(1.0) {}
|
|
DEFAULT_METHODS(OcclusionTextureInfo)
|
|
bool operator==(const OcclusionTextureInfo &) const;
|
|
};
|
|
|
|
// pbrMetallicRoughness class defined in glTF 2.0 spec.
|
|
struct PbrMetallicRoughness {
|
|
std::vector<double> baseColorFactor; // len = 4. default [1,1,1,1]
|
|
TextureInfo baseColorTexture;
|
|
double metallicFactor; // default 1
|
|
double roughnessFactor; // default 1
|
|
TextureInfo metallicRoughnessTexture;
|
|
|
|
Value extras;
|
|
ExtensionMap extensions;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
|
|
PbrMetallicRoughness()
|
|
: baseColorFactor(std::vector<double>{1.0, 1.0, 1.0, 1.0}),
|
|
metallicFactor(1.0),
|
|
roughnessFactor(1.0) {}
|
|
DEFAULT_METHODS(PbrMetallicRoughness)
|
|
bool operator==(const PbrMetallicRoughness &) const;
|
|
};
|
|
|
|
// Each extension should be stored in a ParameterMap.
|
|
// members not in the values could be included in the ParameterMap
|
|
// to keep a single material model
|
|
struct Material {
|
|
std::string name;
|
|
|
|
std::vector<double> emissiveFactor; // length 3. default [0, 0, 0]
|
|
std::string alphaMode; // default "OPAQUE"
|
|
double alphaCutoff; // default 0.5
|
|
bool doubleSided; // default false;
|
|
|
|
PbrMetallicRoughness pbrMetallicRoughness;
|
|
|
|
NormalTextureInfo normalTexture;
|
|
OcclusionTextureInfo occlusionTexture;
|
|
TextureInfo emissiveTexture;
|
|
|
|
// For backward compatibility
|
|
// TODO(syoyo): Remove `values` and `additionalValues` in the next release.
|
|
ParameterMap values;
|
|
ParameterMap additionalValues;
|
|
|
|
ExtensionMap extensions;
|
|
Value extras;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
|
|
Material() : alphaMode("OPAQUE"), alphaCutoff(0.5), doubleSided(false) {}
|
|
DEFAULT_METHODS(Material)
|
|
|
|
bool operator==(const Material &) const;
|
|
};
|
|
|
|
struct BufferView {
|
|
std::string name;
|
|
int buffer{-1}; // Required
|
|
size_t byteOffset{0}; // minimum 0, default 0
|
|
size_t byteLength{0}; // required, minimum 1. 0 = invalid
|
|
size_t byteStride{0}; // minimum 4, maximum 252 (multiple of 4), default 0 =
|
|
// understood to be tightly packed
|
|
int target{0}; // ["ARRAY_BUFFER", "ELEMENT_ARRAY_BUFFER"] for vertex indices
|
|
// or atttribs. Could be 0 for other data
|
|
Value extras;
|
|
ExtensionMap extensions;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
|
|
bool dracoDecoded{false}; // Flag indicating this has been draco decoded
|
|
|
|
BufferView()
|
|
: buffer(-1),
|
|
byteOffset(0),
|
|
byteLength(0),
|
|
byteStride(0),
|
|
target(0),
|
|
dracoDecoded(false) {}
|
|
DEFAULT_METHODS(BufferView)
|
|
bool operator==(const BufferView &) const;
|
|
};
|
|
|
|
struct Accessor {
|
|
int bufferView; // optional in spec but required here since sparse accessor
|
|
// are not supported
|
|
std::string name;
|
|
size_t byteOffset;
|
|
bool normalized; // optional.
|
|
int componentType; // (required) One of TINYGLTF_COMPONENT_TYPE_***
|
|
size_t count; // required
|
|
int type; // (required) One of TINYGLTF_TYPE_*** ..
|
|
Value extras;
|
|
ExtensionMap extensions;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
|
|
std::vector<double> minValues; // optional
|
|
std::vector<double> maxValues; // optional
|
|
|
|
struct {
|
|
int count;
|
|
bool isSparse;
|
|
struct {
|
|
int byteOffset;
|
|
int bufferView;
|
|
int componentType; // a TINYGLTF_COMPONENT_TYPE_ value
|
|
} indices;
|
|
struct {
|
|
int bufferView;
|
|
int byteOffset;
|
|
} values;
|
|
} sparse;
|
|
|
|
///
|
|
/// Utility function to compute byteStride for a given bufferView object.
|
|
/// Returns -1 upon invalid glTF value or parameter configuration.
|
|
///
|
|
int ByteStride(const BufferView &bufferViewObject) const {
|
|
if (bufferViewObject.byteStride == 0) {
|
|
// Assume data is tightly packed.
|
|
int componentSizeInBytes =
|
|
GetComponentSizeInBytes(static_cast<uint32_t>(componentType));
|
|
if (componentSizeInBytes <= 0) {
|
|
return -1;
|
|
}
|
|
|
|
int numComponents = GetNumComponentsInType(static_cast<uint32_t>(type));
|
|
if (numComponents <= 0) {
|
|
return -1;
|
|
}
|
|
|
|
return componentSizeInBytes * numComponents;
|
|
} else {
|
|
// Check if byteStride is a mulple of the size of the accessor's component
|
|
// type.
|
|
int componentSizeInBytes =
|
|
GetComponentSizeInBytes(static_cast<uint32_t>(componentType));
|
|
if (componentSizeInBytes <= 0) {
|
|
return -1;
|
|
}
|
|
|
|
if ((bufferViewObject.byteStride % uint32_t(componentSizeInBytes)) != 0) {
|
|
return -1;
|
|
}
|
|
return static_cast<int>(bufferViewObject.byteStride);
|
|
}
|
|
|
|
// unreachable return 0;
|
|
}
|
|
|
|
Accessor()
|
|
: bufferView(-1),
|
|
byteOffset(0),
|
|
normalized(false),
|
|
componentType(-1),
|
|
count(0),
|
|
type(-1) {
|
|
sparse.isSparse = false;
|
|
}
|
|
DEFAULT_METHODS(Accessor)
|
|
bool operator==(const tinygltf::Accessor &) const;
|
|
};
|
|
|
|
struct PerspectiveCamera {
|
|
double aspectRatio; // min > 0
|
|
double yfov; // required. min > 0
|
|
double zfar; // min > 0
|
|
double znear; // required. min > 0
|
|
|
|
PerspectiveCamera()
|
|
: aspectRatio(0.0),
|
|
yfov(0.0),
|
|
zfar(0.0) // 0 = use infinite projecton matrix
|
|
,
|
|
znear(0.0) {}
|
|
DEFAULT_METHODS(PerspectiveCamera)
|
|
bool operator==(const PerspectiveCamera &) const;
|
|
|
|
ExtensionMap extensions;
|
|
Value extras;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
};
|
|
|
|
struct OrthographicCamera {
|
|
double xmag; // required. must not be zero.
|
|
double ymag; // required. must not be zero.
|
|
double zfar; // required. `zfar` must be greater than `znear`.
|
|
double znear; // required
|
|
|
|
OrthographicCamera() : xmag(0.0), ymag(0.0), zfar(0.0), znear(0.0) {}
|
|
DEFAULT_METHODS(OrthographicCamera)
|
|
bool operator==(const OrthographicCamera &) const;
|
|
|
|
ExtensionMap extensions;
|
|
Value extras;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
};
|
|
|
|
struct Camera {
|
|
std::string type; // required. "perspective" or "orthographic"
|
|
std::string name;
|
|
|
|
PerspectiveCamera perspective;
|
|
OrthographicCamera orthographic;
|
|
|
|
Camera() {}
|
|
DEFAULT_METHODS(Camera)
|
|
bool operator==(const Camera &) const;
|
|
|
|
ExtensionMap extensions;
|
|
Value extras;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
};
|
|
|
|
struct Primitive {
|
|
std::map<std::string, int> attributes; // (required) A dictionary object of
|
|
// integer, where each integer
|
|
// is the index of the accessor
|
|
// containing an attribute.
|
|
int material; // The index of the material to apply to this primitive
|
|
// when rendering.
|
|
int indices; // The index of the accessor that contains the indices.
|
|
int mode; // one of TINYGLTF_MODE_***
|
|
std::vector<std::map<std::string, int> > targets; // array of morph targets,
|
|
// where each target is a dict with attribues in ["POSITION, "NORMAL",
|
|
// "TANGENT"] pointing
|
|
// to their corresponding accessors
|
|
ExtensionMap extensions;
|
|
Value extras;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
|
|
Primitive() {
|
|
material = -1;
|
|
indices = -1;
|
|
}
|
|
DEFAULT_METHODS(Primitive)
|
|
bool operator==(const Primitive &) const;
|
|
};
|
|
|
|
struct Mesh {
|
|
std::string name;
|
|
std::vector<Primitive> primitives;
|
|
std::vector<double> weights; // weights to be applied to the Morph Targets
|
|
ExtensionMap extensions;
|
|
Value extras;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
|
|
Mesh() = default;
|
|
DEFAULT_METHODS(Mesh)
|
|
bool operator==(const Mesh &) const;
|
|
};
|
|
|
|
class Node {
|
|
public:
|
|
Node() : camera(-1), skin(-1), mesh(-1) {}
|
|
|
|
DEFAULT_METHODS(Node)
|
|
|
|
bool operator==(const Node &) const;
|
|
|
|
int camera; // the index of the camera referenced by this node
|
|
|
|
std::string name;
|
|
int skin;
|
|
int mesh;
|
|
std::vector<int> children;
|
|
std::vector<double> rotation; // length must be 0 or 4
|
|
std::vector<double> scale; // length must be 0 or 3
|
|
std::vector<double> translation; // length must be 0 or 3
|
|
std::vector<double> matrix; // length must be 0 or 16
|
|
std::vector<double> weights; // The weights of the instantiated Morph Target
|
|
|
|
ExtensionMap extensions;
|
|
Value extras;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
};
|
|
|
|
struct Buffer {
|
|
std::string name;
|
|
std::vector<unsigned char> data;
|
|
std::string
|
|
uri; // considered as required here but not in the spec (need to clarify)
|
|
// uri is not decoded(e.g. whitespace may be represented as %20)
|
|
Value extras;
|
|
ExtensionMap extensions;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
|
|
Buffer() = default;
|
|
DEFAULT_METHODS(Buffer)
|
|
bool operator==(const Buffer &) const;
|
|
};
|
|
|
|
struct Asset {
|
|
std::string version; // required
|
|
std::string generator;
|
|
std::string minVersion;
|
|
std::string copyright;
|
|
ExtensionMap extensions;
|
|
Value extras;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
|
|
Asset() = default;
|
|
DEFAULT_METHODS(Asset)
|
|
bool operator==(const Asset &) const;
|
|
};
|
|
|
|
struct Scene {
|
|
std::string name;
|
|
std::vector<int> nodes;
|
|
|
|
ExtensionMap extensions;
|
|
Value extras;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
|
|
Scene() = default;
|
|
DEFAULT_METHODS(Scene)
|
|
bool operator==(const Scene &) const;
|
|
};
|
|
|
|
struct SpotLight {
|
|
double innerConeAngle;
|
|
double outerConeAngle;
|
|
|
|
SpotLight() : innerConeAngle(0.0), outerConeAngle(0.7853981634) {}
|
|
DEFAULT_METHODS(SpotLight)
|
|
bool operator==(const SpotLight &) const;
|
|
|
|
ExtensionMap extensions;
|
|
Value extras;
|
|
|
|
// Filled when SetStoreOriginalJSONForExtrasAndExtensions is enabled.
|
|
std::string extras_json_string;
|
|
std::string extensions_json_string;
|
|
};
|
|
|
|
struct Light {
|
|
std::string name;
|
|
std::vector<double> color;
|
|
double intensity;
|
|
std::string type;
|
|
double range;
|
|
SpotLight spot;
|
|
|
|
Light() : intensity(1.0), range(0.0) {}
|
|
DEFAULT_METHODS(Light)
|
|
|
|
bool operator==(const Light &) const;
|
|
|
|
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 *);
|
|
|
|
///
|
|
/// 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 *);
|
|
|
|
std::string ExpandFilePath(const std::string &filepath, void *);
|
|
|
|
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 embeded
|
|
///
|
|
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);
|
|
|
|
///
|
|
/// 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 helpfull 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_;
|
|
}
|
|
|
|
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;
|
|
|
|
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_ = reinterpret_cast<void *>(&fs);
|
|
|
|
WriteImageDataFunction WriteImageData =
|
|
#ifndef TINYGLTF_NO_STB_IMAGE_WRITE
|
|
&tinygltf::WriteImageData;
|
|
#else
|
|
nullptr;
|
|
#endif
|
|
void *write_image_user_data_ = reinterpret_cast<void *>(&fs);
|
|
};
|
|
|
|
#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 warnigs
|
|
#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
|
|
#include "document.h"
|
|
#include "prettywriter.h"
|
|
#include "rapidjson.h"
|
|
#include "stringbuffer.h"
|
|
#include "writer.h"
|
|
#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 {
|
|
|
|
// 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->wrapR == other.wrapR && this->wrapS == other.wrapS &&
|
|
this->wrapT == other.wrapT;
|
|
}
|
|
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;
|
|
}
|
|
|
|
#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)user_data;
|
|
(void)warn;
|
|
|
|
int w = 0, h = 0, comp = 0, req_comp = 0;
|
|
|
|
unsigned char *data = nullptr;
|
|
|
|
// force 32-bit textures for common Vulkan compatibility. It appears that
|
|
// some GPU drivers do not support 24-bit images for Vulkan
|
|
req_comp = 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 accodingly. 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;
|
|
}
|
|
}
|
|
|
|
image->width = w;
|
|
image->height = h;
|
|
image->component = req_comp;
|
|
image->bits = bits;
|
|
image->pixel_type = pixel_type;
|
|
image->image.resize(static_cast<size_t>(w * h * req_comp) * size_t(bits / 8));
|
|
std::copy(data, data + w * h * req_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;
|
|
}
|
|
#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
|
|
DWORD len = ExpandEnvironmentStringsA(filepath.c_str(), NULL, 0);
|
|
char *str = new char[len];
|
|
ExpandEnvironmentStringsA(filepath.c_str(), str, len);
|
|
|
|
std::string s(str);
|
|
|
|
delete[] str;
|
|
|
|
return s;
|
|
#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?)";
|
|
}
|
|
}
|
|
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)
|
|
std::ifstream f(UTF8ToWchar(filepath).c_str(), std::ifstream::binary);
|
|
#else // clang?
|
|
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
|
|
}
|
|
|
|
const char *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 ths 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 theses 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) {
|
|
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 pBuffer = pAttribute->buffer();
|
|
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 neglible 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 alloed 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) {
|
|
model->bufferViews[size_t(model->accessors[size_t(attribute.second)].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
|
|
{
|
|
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));
|
|
}
|
|
|
|
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 allowd. 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 != 0.0)
|
|
SerializeNumberProperty<int>("byteOffset", int(accessor.byteOffset), o);
|
|
|
|
SerializeNumberProperty<int>("componentType", accessor.componentType, o);
|
|
SerializeNumberProperty<size_t>("count", accessor.count, o);
|
|
SerializeNumberArrayProperty<double>("min", accessor.minValues, o);
|
|
SerializeNumberArrayProperty<double>("max", accessor.maxValues, 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()) {
|
|
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);
|
|
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 {
|
|
// ???
|
|
}
|
|
}
|
|
|
|
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 used
|
|
if (model->extensionsUsed.size()) {
|
|
SerializeStringArrayProperty("extensionsUsed", model->extensionsUsed, o);
|
|
}
|
|
|
|
// 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);
|
|
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);
|
|
|
|
// LIGHTS as KHR_lights_cmn
|
|
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));
|
|
}
|
|
|
|
// 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
|