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Diffstat (limited to 'src/3rdparty/assimp/code/glTF2Asset.h')
| -rw-r--r-- | src/3rdparty/assimp/code/glTF2Asset.h | 1131 |
1 files changed, 0 insertions, 1131 deletions
diff --git a/src/3rdparty/assimp/code/glTF2Asset.h b/src/3rdparty/assimp/code/glTF2Asset.h deleted file mode 100644 index cece307d9..000000000 --- a/src/3rdparty/assimp/code/glTF2Asset.h +++ /dev/null @@ -1,1131 +0,0 @@ -/* -Open Asset Import Library (assimp) ----------------------------------------------------------------------- - -Copyright (c) 2006-2017, assimp team - -All rights reserved. - -Redistribution and use of this software in source and binary forms, -with or without modification, are permitted provided that the -following conditions are met: - -* Redistributions of source code must retain the above -copyright notice, this list of conditions and the -following disclaimer. - -* Redistributions in binary form must reproduce the above -copyright notice, this list of conditions and the -following disclaimer in the documentation and/or other -materials provided with the distribution. - -* Neither the name of the assimp team, nor the names of its -contributors may be used to endorse or promote products -derived from this software without specific prior -written permission of the assimp team. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - ----------------------------------------------------------------------- -*/ - -/** @file glTFAsset.h - * Declares a glTF class to handle gltf/glb files - * - * glTF Extensions Support: - * KHR_materials_pbrSpecularGlossiness full - */ -#ifndef GLTF2ASSET_H_INC -#define GLTF2ASSET_H_INC - -#ifndef ASSIMP_BUILD_NO_GLTF_IMPORTER - -#include <map> -#include <string> -#include <list> -#include <vector> -#include <algorithm> -#include <stdexcept> - -#define RAPIDJSON_HAS_STDSTRING 1 -#include <rapidjson/rapidjson.h> -#include <rapidjson/document.h> -#include <rapidjson/error/en.h> - -#ifdef ASSIMP_API -# include <memory> -# include <assimp/DefaultIOSystem.h> -# include "ByteSwapper.h" -#else -# include <memory> -# define AI_SWAP4(p) -# define ai_assert -#endif - - -#if _MSC_VER > 1500 || (defined __GNUC___) -# define ASSIMP_GLTF_USE_UNORDERED_MULTIMAP -# else -# define gltf_unordered_map map -#endif - -#ifdef ASSIMP_GLTF_USE_UNORDERED_MULTIMAP -# include <unordered_map> -# if _MSC_VER > 1600 -# define gltf_unordered_map unordered_map -# else -# define gltf_unordered_map tr1::unordered_map -# endif -#endif - -#include "StringUtils.h" - -namespace glTF2 -{ -#ifdef ASSIMP_API - using Assimp::IOStream; - using Assimp::IOSystem; - using std::shared_ptr; -#else - using std::shared_ptr; - - typedef std::runtime_error DeadlyImportError; - typedef std::runtime_error DeadlyExportError; - - enum aiOrigin { aiOrigin_SET = 0, aiOrigin_CUR = 1, aiOrigin_END = 2 }; - class IOSystem; - class IOStream - { - FILE* f; - public: - IOStream(FILE* file) : f(file) {} - ~IOStream() { fclose(f); f = 0; } - - size_t Read(void* b, size_t sz, size_t n) { return fread(b, sz, n, f); } - size_t Write(const void* b, size_t sz, size_t n) { return fwrite(b, sz, n, f); } - int Seek(size_t off, aiOrigin orig) { return fseek(f, off, int(orig)); } - size_t Tell() const { return ftell(f); } - - size_t FileSize() { - long p = Tell(), len = (Seek(0, aiOrigin_END), Tell()); - return size_t((Seek(p, aiOrigin_SET), len)); - } - }; -#endif - - using rapidjson::Value; - using rapidjson::Document; - - class Asset; - class AssetWriter; - - struct BufferView; // here due to cross-reference - struct Texture; - struct Skin; - - // Vec/matrix types, as raw float arrays - typedef float (vec3)[3]; - typedef float (vec4)[4]; - typedef float (mat4)[16]; - - namespace Util - { - void EncodeBase64(const uint8_t* in, size_t inLength, std::string& out); - - size_t DecodeBase64(const char* in, size_t inLength, uint8_t*& out); - - inline size_t DecodeBase64(const char* in, uint8_t*& out) - { - return DecodeBase64(in, strlen(in), out); - } - - struct DataURI - { - const char* mediaType; - const char* charset; - bool base64; - const char* data; - size_t dataLength; - }; - - //! Check if a uri is a data URI - inline bool ParseDataURI(const char* uri, size_t uriLen, DataURI& out); - } - - - //! Magic number for GLB files - #define AI_GLB_MAGIC_NUMBER "glTF" - - #define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_BASE_COLOR_FACTOR "$mat.gltf.pbrMetallicRoughness.baseColorFactor", 0, 0 - #define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLIC_FACTOR "$mat.gltf.pbrMetallicRoughness.metallicFactor", 0, 0 - #define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_ROUGHNESS_FACTOR "$mat.gltf.pbrMetallicRoughness.roughnessFactor", 0, 0 - #define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_BASE_COLOR_TEXTURE aiTextureType_DIFFUSE, 1 - #define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLICROUGHNESS_TEXTURE aiTextureType_UNKNOWN, 0 - #define AI_MATKEY_GLTF_ALPHAMODE "$mat.gltf.alphaMode", 0, 0 - #define AI_MATKEY_GLTF_ALPHACUTOFF "$mat.gltf.alphaCutoff", 0, 0 - #define AI_MATKEY_GLTF_PBRSPECULARGLOSSINESS "$mat.gltf.pbrSpecularGlossiness", 0, 0 - #define AI_MATKEY_GLTF_PBRSPECULARGLOSSINESS_GLOSSINESS_FACTOR "$mat.gltf.pbrMetallicRoughness.glossinessFactor", 0, 0 - - #define _AI_MATKEY_GLTF_TEXTURE_TEXCOORD_BASE "$tex.file.texCoord" - #define _AI_MATKEY_GLTF_MAPPINGNAME_BASE "$tex.mappingname" - #define _AI_MATKEY_GLTF_MAPPINGID_BASE "$tex.mappingid" - #define _AI_MATKEY_GLTF_MAPPINGFILTER_MAG_BASE "$tex.mappingfiltermag" - #define _AI_MATKEY_GLTF_MAPPINGFILTER_MIN_BASE "$tex.mappingfiltermin" - - #define AI_MATKEY_GLTF_TEXTURE_TEXCOORD _AI_MATKEY_GLTF_TEXTURE_TEXCOORD_BASE, type, N - #define AI_MATKEY_GLTF_MAPPINGNAME(type, N) _AI_MATKEY_GLTF_MAPPINGNAME_BASE, type, N - #define AI_MATKEY_GLTF_MAPPINGID(type, N) _AI_MATKEY_GLTF_MAPPINGID_BASE, type, N - #define AI_MATKEY_GLTF_MAPPINGFILTER_MAG(type, N) _AI_MATKEY_GLTF_MAPPINGFILTER_MAG_BASE, type, N - #define AI_MATKEY_GLTF_MAPPINGFILTER_MIN(type, N) _AI_MATKEY_GLTF_MAPPINGFILTER_MIN_BASE, type, N - - #ifdef ASSIMP_API - #include "./../include/assimp/Compiler/pushpack1.h" - #endif - - //! For binary .glb files - //! 12-byte header (+ the JSON + a "body" data section) - struct GLB_Header - { - uint8_t magic[4]; //!< Magic number: "glTF" - uint32_t version; //!< Version number (always 2 as of the last update) - uint32_t length; //!< Total length of the Binary glTF, including header, scene, and body, in bytes - } PACK_STRUCT; - - struct GLB_Chunk - { - uint32_t chunkLength; - uint32_t chunkType; - } PACK_STRUCT; - - #ifdef ASSIMP_API - #include "./../include/assimp/Compiler/poppack1.h" - #endif - - - //! Values for the GLB_Chunk::chunkType field - enum ChunkType - { - ChunkType_JSON = 0x4E4F534A, - ChunkType_BIN = 0x004E4942 - }; - - //! Values for the mesh primitive modes - enum PrimitiveMode - { - PrimitiveMode_POINTS = 0, - PrimitiveMode_LINES = 1, - PrimitiveMode_LINE_LOOP = 2, - PrimitiveMode_LINE_STRIP = 3, - PrimitiveMode_TRIANGLES = 4, - PrimitiveMode_TRIANGLE_STRIP = 5, - PrimitiveMode_TRIANGLE_FAN = 6 - }; - - //! Values for the Accessor::componentType field - enum ComponentType - { - ComponentType_BYTE = 5120, - ComponentType_UNSIGNED_BYTE = 5121, - ComponentType_SHORT = 5122, - ComponentType_UNSIGNED_SHORT = 5123, - ComponentType_UNSIGNED_INT = 5125, - ComponentType_FLOAT = 5126 - }; - - inline unsigned int ComponentTypeSize(ComponentType t) - { - switch (t) { - case ComponentType_SHORT: - case ComponentType_UNSIGNED_SHORT: - return 2; - - case ComponentType_UNSIGNED_INT: - case ComponentType_FLOAT: - return 4; - - case ComponentType_BYTE: - case ComponentType_UNSIGNED_BYTE: - return 1; - default: - throw DeadlyImportError("GLTF: Unsupported Component Type " + to_string(t)); - } - } - - //! Values for the BufferView::target field - enum BufferViewTarget - { - BufferViewTarget_ARRAY_BUFFER = 34962, - BufferViewTarget_ELEMENT_ARRAY_BUFFER = 34963 - }; - - //! Values for the Sampler::magFilter field - enum class SamplerMagFilter: unsigned int - { - UNSET = 0, - SamplerMagFilter_Nearest = 9728, - SamplerMagFilter_Linear = 9729 - }; - - //! Values for the Sampler::minFilter field - enum class SamplerMinFilter: unsigned int - { - UNSET = 0, - SamplerMinFilter_Nearest = 9728, - SamplerMinFilter_Linear = 9729, - SamplerMinFilter_Nearest_Mipmap_Nearest = 9984, - SamplerMinFilter_Linear_Mipmap_Nearest = 9985, - SamplerMinFilter_Nearest_Mipmap_Linear = 9986, - SamplerMinFilter_Linear_Mipmap_Linear = 9987 - }; - - //! Values for the Sampler::wrapS and Sampler::wrapT field - enum class SamplerWrap: unsigned int - { - UNSET = 0, - Clamp_To_Edge = 33071, - Mirrored_Repeat = 33648, - Repeat = 10497 - }; - - //! Values for the Texture::format and Texture::internalFormat fields - enum TextureFormat - { - TextureFormat_ALPHA = 6406, - TextureFormat_RGB = 6407, - TextureFormat_RGBA = 6408, - TextureFormat_LUMINANCE = 6409, - TextureFormat_LUMINANCE_ALPHA = 6410 - }; - - //! Values for the Texture::target field - enum TextureTarget - { - TextureTarget_TEXTURE_2D = 3553 - }; - - //! Values for the Texture::type field - enum TextureType - { - TextureType_UNSIGNED_BYTE = 5121, - TextureType_UNSIGNED_SHORT_5_6_5 = 33635, - TextureType_UNSIGNED_SHORT_4_4_4_4 = 32819, - TextureType_UNSIGNED_SHORT_5_5_5_1 = 32820 - }; - - - //! Values for the Accessor::type field (helper class) - class AttribType - { - public: - enum Value - { SCALAR, VEC2, VEC3, VEC4, MAT2, MAT3, MAT4 }; - - private: - static const size_t NUM_VALUES = static_cast<size_t>(MAT4)+1; - - struct Info - { const char* name; unsigned int numComponents; }; - - template<int N> struct data - { static const Info infos[NUM_VALUES]; }; - - public: - inline static Value FromString(const char* str) - { - for (size_t i = 0; i < NUM_VALUES; ++i) { - if (strcmp(data<0>::infos[i].name, str) == 0) { - return static_cast<Value>(i); - } - } - return SCALAR; - } - - inline static const char* ToString(Value type) - { - return data<0>::infos[static_cast<size_t>(type)].name; - } - - inline static unsigned int GetNumComponents(Value type) - { - return data<0>::infos[static_cast<size_t>(type)].numComponents; - } - }; - - // must match the order of the AttribTypeTraits::Value enum! - template<int N> const AttribType::Info - AttribType::data<N>::infos[AttribType::NUM_VALUES] = { - { "SCALAR", 1 }, { "VEC2", 2 }, { "VEC3", 3 }, { "VEC4", 4 }, { "MAT2", 4 }, { "MAT3", 9 }, { "MAT4", 16 } - }; - - - - //! A reference to one top-level object, which is valid - //! until the Asset instance is destroyed - template<class T> - class Ref - { - std::vector<T*>* vector; - unsigned int index; - - public: - Ref() : vector(0), index(0) {} - Ref(std::vector<T*>& vec, unsigned int idx) : vector(&vec), index(idx) {} - - inline unsigned int GetIndex() const - { return index; } - - operator bool() const - { return vector != 0; } - - T* operator->() - { return (*vector)[index]; } - - T& operator*() - { return *((*vector)[index]); } - }; - - //! Helper struct to represent values that might not be present - template<class T> - struct Nullable - { - T value; - bool isPresent; - - Nullable() : isPresent(false) {} - Nullable(T& val) : value(val), isPresent(true) {} - }; - - - //! Base classe for all glTF top-level objects - struct Object - { - int index; //!< The index of this object within its property container - int oIndex; //!< The original index of this object defined in the JSON - std::string id; //!< The globally unique ID used to reference this object - std::string name; //!< The user-defined name of this object - - //! Objects marked as special are not exported (used to emulate the binary body buffer) - virtual bool IsSpecial() const - { return false; } - - virtual ~Object() {} - - //! Maps special IDs to another ID, where needed. Subclasses may override it (statically) - static const char* TranslateId(Asset& /*r*/, const char* id) - { return id; } - }; - - // - // Classes for each glTF top-level object type - // - - //! A typed view into a BufferView. A BufferView contains raw binary data. - //! An accessor provides a typed view into a BufferView or a subset of a BufferView - //! similar to how WebGL's vertexAttribPointer() defines an attribute in a buffer. - struct Accessor : public Object - { - Ref<BufferView> bufferView; //!< The ID of the bufferView. (required) - unsigned int byteOffset; //!< The offset relative to the start of the bufferView in bytes. (required) - ComponentType componentType; //!< The datatype of components in the attribute. (required) - unsigned int count; //!< The number of attributes referenced by this accessor. (required) - AttribType::Value type; //!< Specifies if the attribute is a scalar, vector, or matrix. (required) - std::vector<float> max; //!< Maximum value of each component in this attribute. - std::vector<float> min; //!< Minimum value of each component in this attribute. - - unsigned int GetNumComponents(); - unsigned int GetBytesPerComponent(); - unsigned int GetElementSize(); - - inline uint8_t* GetPointer(); - - template<class T> - bool ExtractData(T*& outData); - - void WriteData(size_t count, const void* src_buffer, size_t src_stride); - - //! Helper class to iterate the data - class Indexer - { - friend struct Accessor; - - Accessor& accessor; - uint8_t* data; - size_t elemSize, stride; - - Indexer(Accessor& acc); - - public: - - //! Accesses the i-th value as defined by the accessor - template<class T> - T GetValue(int i); - - //! Accesses the i-th value as defined by the accessor - inline unsigned int GetUInt(int i) - { - return GetValue<unsigned int>(i); - } - - inline bool IsValid() const - { - return data != 0; - } - }; - - inline Indexer GetIndexer() - { - return Indexer(*this); - } - - Accessor() {} - void Read(Value& obj, Asset& r); - }; - - //! A buffer points to binary geometry, animation, or skins. - struct Buffer : public Object - { - /********************* Types *********************/ - public: - - enum Type - { - Type_arraybuffer, - Type_text - }; - - /// \struct SEncodedRegion - /// Descriptor of encoded region in "bufferView". - struct SEncodedRegion - { - const size_t Offset;///< Offset from begin of "bufferView" to encoded region, in bytes. - const size_t EncodedData_Length;///< Size of encoded region, in bytes. - uint8_t* const DecodedData;///< Cached encoded data. - const size_t DecodedData_Length;///< Size of decoded region, in bytes. - const std::string ID;///< ID of the region. - - /// \fn SEncodedRegion(const size_t pOffset, const size_t pEncodedData_Length, uint8_t* pDecodedData, const size_t pDecodedData_Length, const std::string pID) - /// Constructor. - /// \param [in] pOffset - offset from begin of "bufferView" to encoded region, in bytes. - /// \param [in] pEncodedData_Length - size of encoded region, in bytes. - /// \param [in] pDecodedData - pointer to decoded data array. - /// \param [in] pDecodedData_Length - size of encoded region, in bytes. - /// \param [in] pID - ID of the region. - SEncodedRegion(const size_t pOffset, const size_t pEncodedData_Length, uint8_t* pDecodedData, const size_t pDecodedData_Length, const std::string pID) - : Offset(pOffset), EncodedData_Length(pEncodedData_Length), DecodedData(pDecodedData), DecodedData_Length(pDecodedData_Length), ID(pID) - {} - - /// \fn ~SEncodedRegion() - /// Destructor. - ~SEncodedRegion() { delete[] DecodedData; } - }; - - /******************* Variables *******************/ - - //std::string uri; //!< The uri of the buffer. Can be a filepath, a data uri, etc. (required) - size_t byteLength; //!< The length of the buffer in bytes. (default: 0) - //std::string type; //!< XMLHttpRequest responseType (default: "arraybuffer") - - Type type; - - /// \var EncodedRegion_Current - /// Pointer to currently active encoded region. - /// Why not decoding all regions at once and not to set one buffer with decoded data? - /// Yes, why not? Even "accessor" point to decoded data. I mean that fields "byteOffset", "byteStride" and "count" has values which describes decoded - /// data array. But only in range of mesh while is active parameters from "compressedData". For another mesh accessors point to decoded data too. But - /// offset is counted for another regions is encoded. - /// Example. You have two meshes. For every of it you have 4 bytes of data. That data compressed to 2 bytes. So, you have buffer with encoded data: - /// M1_E0, M1_E1, M2_E0, M2_E1. - /// After decoding you'll get: - /// M1_D0, M1_D1, M1_D2, M1_D3, M2_D0, M2_D1, M2_D2, M2_D3. - /// "accessors" must to use values that point to decoded data - obviously. So, you'll expect "accessors" like - /// "accessor_0" : { byteOffset: 0, byteLength: 4}, "accessor_1" : { byteOffset: 4, byteLength: 4} - /// but in real life you'll get: - /// "accessor_0" : { byteOffset: 0, byteLength: 4}, "accessor_1" : { byteOffset: 2, byteLength: 4} - /// Yes, accessor of next mesh has offset and length which mean: current mesh data is decoded, all other data is encoded. - /// And when before you start to read data of current mesh (with encoded data ofcourse) you must decode region of "bufferView", after read finished - /// delete encoding mark. And after that you can repeat process: decode data of mesh, read, delete decoded data. - /// - /// Remark. Encoding all data at once is good in world with computers which do not has RAM limitation. So, you must use step by step encoding in - /// exporter and importer. And, thanks to such way, there is no need to load whole file into memory. - SEncodedRegion* EncodedRegion_Current; - - private: - - shared_ptr<uint8_t> mData; //!< Pointer to the data - bool mIsSpecial; //!< Set to true for special cases (e.g. the body buffer) - - /// \var EncodedRegion_List - /// List of encoded regions. - std::list<SEncodedRegion*> EncodedRegion_List; - - /******************* Functions *******************/ - - public: - - Buffer(); - ~Buffer(); - - void Read(Value& obj, Asset& r); - - bool LoadFromStream(IOStream& stream, size_t length = 0, size_t baseOffset = 0); - - /// \fn void EncodedRegion_Mark(const size_t pOffset, const size_t pEncodedData_Length, uint8_t* pDecodedData, const size_t pDecodedData_Length, const std::string& pID) - /// Mark region of "bufferView" as encoded. When data is request from such region then "bufferView" use decoded data. - /// \param [in] pOffset - offset from begin of "bufferView" to encoded region, in bytes. - /// \param [in] pEncodedData_Length - size of encoded region, in bytes. - /// \param [in] pDecodedData - pointer to decoded data array. - /// \param [in] pDecodedData_Length - size of encoded region, in bytes. - /// \param [in] pID - ID of the region. - void EncodedRegion_Mark(const size_t pOffset, const size_t pEncodedData_Length, uint8_t* pDecodedData, const size_t pDecodedData_Length, const std::string& pID); - - /// \fn void EncodedRegion_SetCurrent(const std::string& pID) - /// Select current encoded region by ID. \sa EncodedRegion_Current. - /// \param [in] pID - ID of the region. - void EncodedRegion_SetCurrent(const std::string& pID); - - /// \fn bool ReplaceData(const size_t pBufferData_Offset, const size_t pBufferData_Count, const uint8_t* pReplace_Data, const size_t pReplace_Count) - /// Replace part of buffer data. Pay attention that function work with original array of data (\ref mData) not with encoded regions. - /// \param [in] pBufferData_Offset - index of first element in buffer from which new data will be placed. - /// \param [in] pBufferData_Count - count of bytes in buffer which will be replaced. - /// \param [in] pReplace_Data - pointer to array with new data for buffer. - /// \param [in] pReplace_Count - count of bytes in new data. - /// \return true - if successfully replaced, false if input arguments is out of range. - bool ReplaceData(const size_t pBufferData_Offset, const size_t pBufferData_Count, const uint8_t* pReplace_Data, const size_t pReplace_Count); - - size_t AppendData(uint8_t* data, size_t length); - void Grow(size_t amount); - - uint8_t* GetPointer() - { return mData.get(); } - - void MarkAsSpecial() - { mIsSpecial = true; } - - bool IsSpecial() const - { return mIsSpecial; } - - std::string GetURI() - { return std::string(this->id) + ".bin"; } - - static const char* TranslateId(Asset& r, const char* id); - }; - - //! A view into a buffer generally representing a subset of the buffer. - struct BufferView : public Object - { - Ref<Buffer> buffer; //! The ID of the buffer. (required) - size_t byteOffset; //! The offset into the buffer in bytes. (required) - size_t byteLength; //! The length of the bufferView in bytes. (default: 0) - unsigned int byteStride; //!< The stride, in bytes, between attributes referenced by this accessor. (default: 0) - - BufferViewTarget target; //! The target that the WebGL buffer should be bound to. - - void Read(Value& obj, Asset& r); - }; - - struct Camera : public Object - { - enum Type - { - Perspective, - Orthographic - }; - - Type type; - - union - { - struct { - float aspectRatio; //!<The floating - point aspect ratio of the field of view. (0 = undefined = use the canvas one) - float yfov; //!<The floating - point vertical field of view in radians. (required) - float zfar; //!<The floating - point distance to the far clipping plane. (required) - float znear; //!< The floating - point distance to the near clipping plane. (required) - } perspective; - - struct { - float xmag; //! The floating-point horizontal magnification of the view. (required) - float ymag; //! The floating-point vertical magnification of the view. (required) - float zfar; //! The floating-point distance to the far clipping plane. (required) - float znear; //! The floating-point distance to the near clipping plane. (required) - } ortographic; - } cameraProperties; - - Camera() {} - void Read(Value& obj, Asset& r); - }; - - - //! Image data used to create a texture. - struct Image : public Object - { - std::string uri; //! The uri of the image, that can be a file path, a data URI, etc.. (required) - - Ref<BufferView> bufferView; - - std::string mimeType; - - int width, height; - - private: - uint8_t* mData; - size_t mDataLength; - - public: - - Image(); - void Read(Value& obj, Asset& r); - - inline bool HasData() const - { return mDataLength > 0; } - - inline size_t GetDataLength() const - { return mDataLength; } - - inline const uint8_t* GetData() const - { return mData; } - - inline uint8_t* StealData(); - - inline void SetData(uint8_t* data, size_t length, Asset& r); - }; - - const vec4 defaultBaseColor = {1, 1, 1, 1}; - const vec3 defaultEmissiveFactor = {0, 0, 0}; - const vec4 defaultDiffuseFactor = {1, 1, 1, 1}; - const vec3 defaultSpecularFactor = {1, 1, 1}; - - struct TextureInfo - { - Ref<Texture> texture; - unsigned int index; - unsigned int texCoord = 0; - }; - - struct NormalTextureInfo : TextureInfo - { - float scale = 1; - }; - - struct OcclusionTextureInfo : TextureInfo - { - float strength = 1; - }; - - struct PbrMetallicRoughness - { - vec4 baseColorFactor; - TextureInfo baseColorTexture; - TextureInfo metallicRoughnessTexture; - float metallicFactor; - float roughnessFactor; - }; - - struct PbrSpecularGlossiness - { - vec4 diffuseFactor; - vec3 specularFactor; - float glossinessFactor; - TextureInfo diffuseTexture; - TextureInfo specularGlossinessTexture; - - PbrSpecularGlossiness() { SetDefaults(); } - void SetDefaults(); - }; - - //! The material appearance of a primitive. - struct Material : public Object - { - //PBR metallic roughness properties - PbrMetallicRoughness pbrMetallicRoughness; - - //other basic material properties - NormalTextureInfo normalTexture; - OcclusionTextureInfo occlusionTexture; - TextureInfo emissiveTexture; - vec3 emissiveFactor; - std::string alphaMode; - float alphaCutoff; - bool doubleSided; - - //extension: KHR_materials_pbrSpecularGlossiness - Nullable<PbrSpecularGlossiness> pbrSpecularGlossiness; - - Material() { SetDefaults(); } - void Read(Value& obj, Asset& r); - void SetDefaults(); - }; - - //! A set of primitives to be rendered. A node can contain one or more meshes. A node's transform places the mesh in the scene. - struct Mesh : public Object - { - typedef std::vector< Ref<Accessor> > AccessorList; - - struct Primitive - { - PrimitiveMode mode; - - struct Attributes { - AccessorList position, normal, tangent, texcoord, color, joint, jointmatrix, weight; - } attributes; - - Ref<Accessor> indices; - - Ref<Material> material; - }; - - std::vector<Primitive> primitives; - - Mesh() {} - - /// \fn void Read(Value& pJSON_Object, Asset& pAsset_Root) - /// Get mesh data from JSON-object and place them to root asset. - /// \param [in] pJSON_Object - reference to pJSON-object from which data are read. - /// \param [out] pAsset_Root - reference to root assed where data will be stored. - void Read(Value& pJSON_Object, Asset& pAsset_Root); - }; - - struct Node : public Object - { - std::vector< Ref<Node> > children; - std::vector< Ref<Mesh> > meshes; - - Nullable<mat4> matrix; - Nullable<vec3> translation; - Nullable<vec4> rotation; - Nullable<vec3> scale; - - Ref<Camera> camera; - - std::vector< Ref<Node> > skeletons; //!< The ID of skeleton nodes. Each of which is the root of a node hierarchy. - Ref<Skin> skin; //!< The ID of the skin referenced by this node. - std::string jointName; //!< Name used when this node is a joint in a skin. - - Ref<Node> parent; //!< This is not part of the glTF specification. Used as a helper. - - Node() {} - void Read(Value& obj, Asset& r); - }; - - struct Program : public Object - { - Program() {} - void Read(Value& obj, Asset& r); - }; - - - struct Sampler : public Object - { - SamplerMagFilter magFilter; //!< The texture magnification filter. - SamplerMinFilter minFilter; //!< The texture minification filter. - SamplerWrap wrapS; //!< The texture wrapping in the S direction. - SamplerWrap wrapT; //!< The texture wrapping in the T direction. - - Sampler() { SetDefaults(); } - void Read(Value& obj, Asset& r); - void SetDefaults(); - }; - - struct Scene : public Object - { - std::vector< Ref<Node> > nodes; - - Scene() {} - void Read(Value& obj, Asset& r); - }; - - struct Shader : public Object - { - Shader() {} - void Read(Value& obj, Asset& r); - }; - - struct Skin : public Object - { - Nullable<mat4> bindShapeMatrix; //!< Floating-point 4x4 transformation matrix stored in column-major order. - Ref<Accessor> inverseBindMatrices; //!< The ID of the accessor containing the floating-point 4x4 inverse-bind matrices. - std::vector<Ref<Node>> jointNames; //!< Joint names of the joints (nodes with a jointName property) in this skin. - std::string name; //!< The user-defined name of this object. - - Skin() {} - void Read(Value& obj, Asset& r); - }; - - //! A texture and its sampler. - struct Texture : public Object - { - Ref<Sampler> sampler; //!< The ID of the sampler used by this texture. (required) - Ref<Image> source; //!< The ID of the image used by this texture. (required) - - //TextureFormat format; //!< The texture's format. (default: TextureFormat_RGBA) - //TextureFormat internalFormat; //!< The texture's internal format. (default: TextureFormat_RGBA) - - //TextureTarget target; //!< The target that the WebGL texture should be bound to. (default: TextureTarget_TEXTURE_2D) - //TextureType type; //!< Texel datatype. (default: TextureType_UNSIGNED_BYTE) - - Texture() {} - void Read(Value& obj, Asset& r); - }; - - struct Animation : public Object - { - struct AnimSampler { - std::string id; //!< The ID of this sampler. - std::string input; //!< The ID of a parameter in this animation to use as key-frame input. - std::string interpolation; //!< Type of interpolation algorithm to use between key-frames. - std::string output; //!< The ID of a parameter in this animation to use as key-frame output. - }; - - struct AnimChannel { - int sampler; //!< The index of a sampler in the containing animation's samplers property. - - struct AnimTarget { - Ref<Node> node; //!< The node to animate. - std::string path; //!< The name of property of the node to animate ("translation", "rotation", or "scale"). - } target; - }; - - struct AnimParameters { - Ref<Accessor> TIME; //!< Accessor reference to a buffer storing a array of floating point scalar values. - Ref<Accessor> rotation; //!< Accessor reference to a buffer storing a array of four-component floating-point vectors. - Ref<Accessor> scale; //!< Accessor reference to a buffer storing a array of three-component floating-point vectors. - Ref<Accessor> translation; //!< Accessor reference to a buffer storing a array of three-component floating-point vectors. - }; - - // AnimChannel Channels[3]; //!< Connect the output values of the key-frame animation to a specific node in the hierarchy. - // AnimParameters Parameters; //!< The samplers that interpolate between the key-frames. - // AnimSampler Samplers[3]; //!< The parameterized inputs representing the key-frame data. - - std::vector<AnimChannel> Channels; //!< Connect the output values of the key-frame animation to a specific node in the hierarchy. - AnimParameters Parameters; //!< The samplers that interpolate between the key-frames. - std::vector<AnimSampler> Samplers; //!< The parameterized inputs representing the key-frame data. - - Animation() {} - void Read(Value& obj, Asset& r); - - //! Get accessor given an animation parameter name. - Ref<Accessor> GetAccessor(std::string name) { - if (name == "TIME") { - return Parameters.TIME; - } else if (name == "rotation") { - return Parameters.rotation; - } else if (name == "scale") { - return Parameters.scale; - } else if (name == "translation") { - return Parameters.translation; - } - return Ref<Accessor>(); - } - }; - - - //! Base class for LazyDict that acts as an interface - class LazyDictBase - { - public: - virtual ~LazyDictBase() {} - - virtual void AttachToDocument(Document& doc) = 0; - virtual void DetachFromDocument() = 0; - - virtual void WriteObjects(AssetWriter& writer) = 0; - }; - - - template<class T> - class LazyDict; - - //! (Implemented in glTFAssetWriter.h) - template<class T> - void WriteLazyDict(LazyDict<T>& d, AssetWriter& w); - - - //! Manages lazy loading of the glTF top-level objects, and keeps a reference to them by ID - //! It is the owner the loaded objects, so when it is destroyed it also deletes them - template<class T> - class LazyDict : public LazyDictBase - { - friend class Asset; - friend class AssetWriter; - - typedef typename std::gltf_unordered_map< unsigned int, unsigned int > Dict; - typedef typename std::gltf_unordered_map< std::string, unsigned int > IdDict; - - std::vector<T*> mObjs; //! The read objects - Dict mObjsByOIndex; //! The read objects accessible by original index - IdDict mObjsById; //! The read objects accessible by id - const char* mDictId; //! ID of the dictionary object - const char* mExtId; //! ID of the extension defining the dictionary - Value* mDict; //! JSON dictionary object - Asset& mAsset; //! The asset instance - - void AttachToDocument(Document& doc); - void DetachFromDocument(); - - void WriteObjects(AssetWriter& writer) - { WriteLazyDict<T>(*this, writer); } - - Ref<T> Add(T* obj); - - public: - LazyDict(Asset& asset, const char* dictId, const char* extId = 0); - ~LazyDict(); - - Ref<T> Retrieve(unsigned int i); - - Ref<T> Get(unsigned int i); - Ref<T> Get(const char* id); - - Ref<T> Create(const char* id); - Ref<T> Create(const std::string& id) - { return Create(id.c_str()); } - - unsigned int Remove(const char* id); - - inline unsigned int Size() const - { return unsigned(mObjs.size()); } - - inline T& operator[](size_t i) - { return *mObjs[i]; } - - }; - - - struct AssetMetadata - { - std::string copyright; //!< A copyright message suitable for display to credit the content creator. - std::string generator; //!< Tool that generated this glTF model.Useful for debugging. - - struct { - std::string api; //!< Specifies the target rendering API (default: "WebGL") - std::string version; //!< Specifies the target rendering API (default: "1.0.3") - } profile; //!< Specifies the target rendering API and version, e.g., WebGL 1.0.3. (default: {}) - - std::string version; //!< The glTF format version - - void Read(Document& doc); - - AssetMetadata() : version("") {} - }; - - // - // glTF Asset class - // - - //! Root object for a glTF asset - class Asset - { - typedef std::gltf_unordered_map<std::string, int> IdMap; - - template<class T> - friend class LazyDict; - - friend struct Buffer; // To access OpenFile - - friend class AssetWriter; - - private: - IOSystem* mIOSystem; - - std::string mCurrentAssetDir; - - size_t mSceneLength; - size_t mBodyOffset, mBodyLength; - - std::vector<LazyDictBase*> mDicts; - - IdMap mUsedIds; - - Ref<Buffer> mBodyBuffer; - - Asset(Asset&); - Asset& operator=(const Asset&); - - public: - - //! Keeps info about the enabled extensions - struct Extensions - { - bool KHR_materials_pbrSpecularGlossiness; - - } extensionsUsed; - - AssetMetadata asset; - - - // Dictionaries for each type of object - - LazyDict<Accessor> accessors; - LazyDict<Animation> animations; - LazyDict<Buffer> buffers; - LazyDict<BufferView> bufferViews; - LazyDict<Camera> cameras; - LazyDict<Image> images; - LazyDict<Material> materials; - LazyDict<Mesh> meshes; - LazyDict<Node> nodes; - LazyDict<Sampler> samplers; - LazyDict<Scene> scenes; - LazyDict<Skin> skins; - LazyDict<Texture> textures; - - Ref<Scene> scene; - - public: - Asset(IOSystem* io = 0) - : mIOSystem(io) - , asset() - , accessors (*this, "accessors") - , animations (*this, "animations") - , buffers (*this, "buffers") - , bufferViews (*this, "bufferViews") - , cameras (*this, "cameras") - , images (*this, "images") - , materials (*this, "materials") - , meshes (*this, "meshes") - , nodes (*this, "nodes") - , samplers (*this, "samplers") - , scenes (*this, "scenes") - , skins (*this, "skins") - , textures (*this, "textures") - { - memset(&extensionsUsed, 0, sizeof(extensionsUsed)); - } - - //! Main function - void Load(const std::string& file, bool isBinary = false); - - //! Enables binary encoding on the asset - void SetAsBinary(); - - //! Search for an available name, starting from the given strings - std::string FindUniqueID(const std::string& str, const char* suffix); - - Ref<Buffer> GetBodyBuffer() - { return mBodyBuffer; } - - private: - void ReadBinaryHeader(IOStream& stream, std::vector<char>& sceneData); - - void ReadExtensionsUsed(Document& doc); - - IOStream* OpenFile(std::string path, const char* mode, bool absolute = false); - }; - -} - -// Include the implementation of the methods -#include "glTF2Asset.inl" - -#endif // ASSIMP_BUILD_NO_GLTF_IMPORTER - -#endif // GLTF2ASSET_H_INC |