| #include "precompiled.h" |
| // |
| // Copyright (c) 2013-2014 The ANGLE Project Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| // |
| |
| // formatutils9.cpp: Queries for GL image formats and their translations to D3D9 |
| // formats. |
| |
| #include "libGLESv2/renderer/d3d/d3d9/formatutils9.h" |
| #include "libGLESv2/renderer/d3d/d3d9/Renderer9.h" |
| #include "libGLESv2/renderer/generatemip.h" |
| #include "libGLESv2/renderer/loadimage.h" |
| #include "libGLESv2/renderer/copyimage.h" |
| #include "libGLESv2/renderer/vertexconversion.h" |
| |
| namespace rx |
| { |
| |
| namespace d3d9 |
| { |
| |
| const D3DFORMAT D3DFMT_INTZ = ((D3DFORMAT)(MAKEFOURCC('I', 'N', 'T', 'Z'))); |
| const D3DFORMAT D3DFMT_NULL = ((D3DFORMAT)(MAKEFOURCC('N', 'U', 'L', 'L'))); |
| |
| struct D3D9FastCopyFormat |
| { |
| GLenum destFormat; |
| GLenum destType; |
| ColorCopyFunction copyFunction; |
| |
| D3D9FastCopyFormat(GLenum destFormat, GLenum destType, ColorCopyFunction copyFunction) |
| : destFormat(destFormat), destType(destType), copyFunction(copyFunction) |
| { } |
| |
| bool operator<(const D3D9FastCopyFormat& other) const |
| { |
| return memcmp(this, &other, sizeof(D3D9FastCopyFormat)) < 0; |
| } |
| }; |
| |
| typedef std::multimap<D3DFORMAT, D3D9FastCopyFormat> D3D9FastCopyMap; |
| |
| static D3D9FastCopyMap BuildFastCopyMap() |
| { |
| D3D9FastCopyMap map; |
| |
| map.insert(std::make_pair(D3DFMT_A8R8G8B8, D3D9FastCopyFormat(GL_RGBA, GL_UNSIGNED_BYTE, CopyBGRAUByteToRGBAUByte))); |
| |
| return map; |
| } |
| |
| // A map to determine the pixel size and mip generation function of a given D3D format |
| typedef std::map<D3DFORMAT, D3DFormat> D3D9FormatInfoMap; |
| |
| D3DFormat::D3DFormat() |
| : pixelBytes(0), |
| blockWidth(0), |
| blockHeight(0), |
| internalFormat(GL_NONE), |
| mipGenerationFunction(NULL), |
| colorReadFunction(NULL), |
| fastCopyFunctions() |
| { |
| } |
| |
| ColorCopyFunction D3DFormat::getFastCopyFunction(GLenum format, GLenum type) const |
| { |
| FastCopyFunctionMap::const_iterator iter = fastCopyFunctions.find(std::make_pair(format, type)); |
| return (iter != fastCopyFunctions.end()) ? iter->second : NULL; |
| } |
| |
| static inline void InsertD3DFormatInfo(D3D9FormatInfoMap *map, D3DFORMAT format, GLuint bits, GLuint blockWidth, |
| GLuint blockHeight, GLenum internalFormat, MipGenerationFunction mipFunc, |
| ColorReadFunction colorReadFunc) |
| { |
| D3DFormat info; |
| info.pixelBytes = bits / 8; |
| info.blockWidth = blockWidth; |
| info.blockHeight = blockHeight; |
| info.internalFormat = internalFormat; |
| info.mipGenerationFunction = mipFunc; |
| info.colorReadFunction = colorReadFunc; |
| |
| static const D3D9FastCopyMap fastCopyMap = BuildFastCopyMap(); |
| std::pair<D3D9FastCopyMap::const_iterator, D3D9FastCopyMap::const_iterator> fastCopyIter = fastCopyMap.equal_range(format); |
| for (D3D9FastCopyMap::const_iterator i = fastCopyIter.first; i != fastCopyIter.second; i++) |
| { |
| info.fastCopyFunctions.insert(std::make_pair(std::make_pair(i->second.destFormat, i->second.destType), i->second.copyFunction)); |
| } |
| |
| map->insert(std::make_pair(format, info)); |
| } |
| |
| static D3D9FormatInfoMap BuildD3D9FormatInfoMap() |
| { |
| D3D9FormatInfoMap map; |
| |
| // | D3DFORMAT | S |W |H | Internal format | Mip generation function | Color read function | |
| InsertD3DFormatInfo(&map, D3DFMT_NULL, 0, 0, 0, GL_NONE, NULL, NULL ); |
| InsertD3DFormatInfo(&map, D3DFMT_UNKNOWN, 0, 0, 0, GL_NONE, NULL, NULL ); |
| |
| InsertD3DFormatInfo(&map, D3DFMT_L8, 8, 1, 1, GL_LUMINANCE8_EXT, GenerateMip<L8>, ReadColor<L8, GLfloat> ); |
| InsertD3DFormatInfo(&map, D3DFMT_A8, 8, 1, 1, GL_ALPHA8_EXT, GenerateMip<A8>, ReadColor<A8, GLfloat> ); |
| InsertD3DFormatInfo(&map, D3DFMT_A8L8, 16, 1, 1, GL_LUMINANCE8_ALPHA8_EXT, GenerateMip<A8L8>, ReadColor<A8L8, GLfloat> ); |
| InsertD3DFormatInfo(&map, D3DFMT_A4R4G4B4, 16, 1, 1, GL_BGRA4_ANGLEX, GenerateMip<B4G4R4A4>, ReadColor<B4G4R4A4, GLfloat> ); |
| InsertD3DFormatInfo(&map, D3DFMT_A1R5G5B5, 16, 1, 1, GL_BGR5_A1_ANGLEX, GenerateMip<B5G5R5A1>, ReadColor<B5G5R5A1, GLfloat> ); |
| InsertD3DFormatInfo(&map, D3DFMT_R5G6B5, 16, 1, 1, GL_RGB565, GenerateMip<R5G6B5>, ReadColor<R5G6B5, GLfloat> ); |
| InsertD3DFormatInfo(&map, D3DFMT_X8R8G8B8, 32, 1, 1, GL_BGRA8_EXT, GenerateMip<B8G8R8X8>, ReadColor<B8G8R8X8, GLfloat> ); |
| InsertD3DFormatInfo(&map, D3DFMT_A8R8G8B8, 32, 1, 1, GL_BGRA8_EXT, GenerateMip<B8G8R8A8>, ReadColor<B8G8R8A8, GLfloat> ); |
| InsertD3DFormatInfo(&map, D3DFMT_R16F, 16, 1, 1, GL_R16F_EXT, GenerateMip<R16F>, ReadColor<R16F, GLfloat> ); |
| InsertD3DFormatInfo(&map, D3DFMT_G16R16F, 32, 1, 1, GL_RG16F_EXT, GenerateMip<R16G16F>, ReadColor<R16G16F, GLfloat> ); |
| InsertD3DFormatInfo(&map, D3DFMT_A16B16G16R16F, 64, 1, 1, GL_RGBA16F_EXT, GenerateMip<R16G16B16A16F>, ReadColor<R16G16B16A16F, GLfloat>); |
| InsertD3DFormatInfo(&map, D3DFMT_R32F, 32, 1, 1, GL_R32F_EXT, GenerateMip<R32F>, ReadColor<R32F, GLfloat> ); |
| InsertD3DFormatInfo(&map, D3DFMT_G32R32F, 64, 1, 1, GL_RG32F_EXT, GenerateMip<R32G32F>, ReadColor<R32G32F, GLfloat> ); |
| InsertD3DFormatInfo(&map, D3DFMT_A32B32G32R32F, 128, 1, 1, GL_RGBA32F_EXT, GenerateMip<R32G32B32A32F>, ReadColor<R32G32B32A32F, GLfloat>); |
| |
| InsertD3DFormatInfo(&map, D3DFMT_D16, 16, 1, 1, GL_DEPTH_COMPONENT16, NULL, NULL ); |
| InsertD3DFormatInfo(&map, D3DFMT_D24S8, 32, 1, 1, GL_DEPTH24_STENCIL8_OES, NULL, NULL ); |
| InsertD3DFormatInfo(&map, D3DFMT_D24X8, 32, 1, 1, GL_DEPTH_COMPONENT16, NULL, NULL ); |
| InsertD3DFormatInfo(&map, D3DFMT_D32, 32, 1, 1, GL_DEPTH_COMPONENT32_OES, NULL, NULL ); |
| |
| InsertD3DFormatInfo(&map, D3DFMT_INTZ, 32, 1, 1, GL_DEPTH24_STENCIL8_OES, NULL, NULL ); |
| |
| InsertD3DFormatInfo(&map, D3DFMT_DXT1, 64, 4, 4, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, NULL, NULL ); |
| InsertD3DFormatInfo(&map, D3DFMT_DXT3, 128, 4, 4, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, NULL, NULL ); |
| InsertD3DFormatInfo(&map, D3DFMT_DXT5, 128, 4, 4, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, NULL, NULL ); |
| |
| return map; |
| } |
| |
| const D3DFormat &GetD3DFormatInfo(D3DFORMAT format) |
| { |
| static const D3D9FormatInfoMap infoMap = BuildD3D9FormatInfoMap(); |
| D3D9FormatInfoMap::const_iterator iter = infoMap.find(format); |
| if (iter != infoMap.end()) |
| { |
| return iter->second; |
| } |
| else |
| { |
| static const D3DFormat defaultInfo; |
| return defaultInfo; |
| } |
| } |
| |
| |
| |
| typedef std::pair<GLint, InitializeTextureDataFunction> InternalFormatInitialzerPair; |
| typedef std::map<GLint, InitializeTextureDataFunction> InternalFormatInitialzerMap; |
| |
| static InternalFormatInitialzerMap BuildInternalFormatInitialzerMap() |
| { |
| InternalFormatInitialzerMap map; |
| |
| map.insert(InternalFormatInitialzerPair(GL_RGB16F, Initialize4ComponentData<GLhalf, 0x0000, 0x0000, 0x0000, gl::Float16One>)); |
| map.insert(InternalFormatInitialzerPair(GL_RGB32F, Initialize4ComponentData<GLfloat, 0x00000000, 0x00000000, 0x00000000, gl::Float32One>)); |
| |
| return map; |
| } |
| |
| // Each GL internal format corresponds to one D3D format and data loading function. |
| // Due to not all formats being available all the time, some of the function/format types are wrapped |
| // in templates that perform format support queries on a Renderer9 object which is supplied |
| // when requesting the function or format. |
| |
| typedef bool(*FallbackPredicateFunction)(); |
| |
| template <FallbackPredicateFunction pred, LoadImageFunction prefered, LoadImageFunction fallback> |
| static void FallbackLoad(size_t width, size_t height, size_t depth, |
| const uint8_t *input, size_t inputRowPitch, size_t inputDepthPitch, |
| uint8_t *output, size_t outputRowPitch, size_t outputDepthPitch) |
| { |
| if (pred()) |
| { |
| prefered(width, height, depth, input, inputRowPitch, inputDepthPitch, output, outputRowPitch, outputDepthPitch); |
| } |
| else |
| { |
| fallback(width, height, depth, input, inputRowPitch, inputDepthPitch, output, outputRowPitch, outputDepthPitch); |
| } |
| } |
| |
| static void UnreachableLoad(size_t width, size_t height, size_t depth, |
| const uint8_t *input, size_t inputRowPitch, size_t inputDepthPitch, |
| uint8_t *output, size_t outputRowPitch, size_t outputDepthPitch) |
| { |
| UNREACHABLE(); |
| } |
| |
| typedef std::pair<GLenum, TextureFormat> D3D9FormatPair; |
| typedef std::map<GLenum, TextureFormat> D3D9FormatMap; |
| |
| TextureFormat::TextureFormat() |
| : texFormat(D3DFMT_NULL), |
| renderFormat(D3DFMT_NULL), |
| dataInitializerFunction(NULL), |
| loadFunction(UnreachableLoad) |
| { |
| } |
| |
| static inline void InsertD3D9FormatInfo(D3D9FormatMap *map, GLenum internalFormat, D3DFORMAT texFormat, |
| D3DFORMAT renderFormat, LoadImageFunction loadFunction) |
| { |
| TextureFormat info; |
| info.texFormat = texFormat; |
| info.renderFormat = renderFormat; |
| |
| static const InternalFormatInitialzerMap dataInitializationMap = BuildInternalFormatInitialzerMap(); |
| InternalFormatInitialzerMap::const_iterator dataInitIter = dataInitializationMap.find(internalFormat); |
| info.dataInitializerFunction = (dataInitIter != dataInitializationMap.end()) ? dataInitIter->second : NULL; |
| |
| info.loadFunction = loadFunction; |
| |
| map->insert(std::make_pair(internalFormat, info)); |
| } |
| |
| static D3D9FormatMap BuildD3D9FormatMap() |
| { |
| D3D9FormatMap map; |
| |
| // | Internal format | Texture format | Render format | Load function | |
| InsertD3D9FormatInfo(&map, GL_NONE, D3DFMT_NULL, D3DFMT_NULL, UnreachableLoad ); |
| |
| // We choose to downsample the GL_DEPTH_COMPONENT32_OES format to a 24-bit format because D3DFMT_D32 is not widely |
| // supported. We're allowed to do this because: |
| // - The ES spec 2.0.25 sec 3.7.1 states that we're allowed to store texture formats with internal format |
| // resolutions of our own choosing. |
| // - OES_depth_texture states that downsampling of the depth formats is allowed. |
| // - ANGLE_depth_texture does not state minimum required resolutions of the depth texture formats it |
| // introduces. |
| // In ES3 however, there are minimum resolutions for the texture formats and this would not be allowed. |
| |
| InsertD3D9FormatInfo(&map, GL_DEPTH_COMPONENT16, D3DFMT_INTZ, D3DFMT_D24S8, UnreachableLoad ); |
| InsertD3D9FormatInfo(&map, GL_DEPTH_COMPONENT32_OES, D3DFMT_INTZ, D3DFMT_D24X8, UnreachableLoad ); |
| InsertD3D9FormatInfo(&map, GL_DEPTH24_STENCIL8_OES, D3DFMT_INTZ, D3DFMT_D24S8, UnreachableLoad ); |
| InsertD3D9FormatInfo(&map, GL_STENCIL_INDEX8, D3DFMT_UNKNOWN, D3DFMT_D24S8, UnreachableLoad ); // TODO: What's the texture format? |
| |
| InsertD3D9FormatInfo(&map, GL_RGBA32F_EXT, D3DFMT_A32B32G32R32F, D3DFMT_A32B32G32R32F, LoadToNative<GLfloat, 4> ); |
| InsertD3D9FormatInfo(&map, GL_RGB32F_EXT, D3DFMT_A32B32G32R32F, D3DFMT_A32B32G32R32F, LoadToNative3To4<GLfloat, gl::Float32One>); |
| InsertD3D9FormatInfo(&map, GL_RG32F_EXT, D3DFMT_G32R32F, D3DFMT_G32R32F, LoadToNative<GLfloat, 2> ); |
| InsertD3D9FormatInfo(&map, GL_R32F_EXT, D3DFMT_R32F, D3DFMT_R32F, LoadToNative<GLfloat, 1> ); |
| InsertD3D9FormatInfo(&map, GL_ALPHA32F_EXT, D3DFMT_A32B32G32R32F, D3DFMT_UNKNOWN, LoadA32FToRGBA32F ); |
| InsertD3D9FormatInfo(&map, GL_LUMINANCE32F_EXT, D3DFMT_A32B32G32R32F, D3DFMT_UNKNOWN, LoadL32FToRGBA32F ); |
| InsertD3D9FormatInfo(&map, GL_LUMINANCE_ALPHA32F_EXT, D3DFMT_A32B32G32R32F, D3DFMT_UNKNOWN, LoadLA32FToRGBA32F ); |
| |
| InsertD3D9FormatInfo(&map, GL_RGBA16F_EXT, D3DFMT_A16B16G16R16F, D3DFMT_A16B16G16R16F, LoadToNative<GLhalf, 4> ); |
| InsertD3D9FormatInfo(&map, GL_RGB16F_EXT, D3DFMT_A16B16G16R16F, D3DFMT_A16B16G16R16F, LoadToNative3To4<GLhalf, gl::Float16One> ); |
| InsertD3D9FormatInfo(&map, GL_RG16F_EXT, D3DFMT_G16R16F, D3DFMT_G16R16F, LoadToNative<GLhalf, 2> ); |
| InsertD3D9FormatInfo(&map, GL_R16F_EXT, D3DFMT_R16F, D3DFMT_R16F, LoadToNative<GLhalf, 1> ); |
| InsertD3D9FormatInfo(&map, GL_ALPHA16F_EXT, D3DFMT_A16B16G16R16F, D3DFMT_UNKNOWN, LoadA16FToRGBA16F ); |
| InsertD3D9FormatInfo(&map, GL_LUMINANCE16F_EXT, D3DFMT_A16B16G16R16F, D3DFMT_UNKNOWN, LoadL16FToRGBA16F ); |
| InsertD3D9FormatInfo(&map, GL_LUMINANCE_ALPHA16F_EXT, D3DFMT_A16B16G16R16F, D3DFMT_UNKNOWN, LoadLA16FToRGBA16F ); |
| |
| InsertD3D9FormatInfo(&map, GL_ALPHA8_EXT, D3DFMT_A8R8G8B8, D3DFMT_A8R8G8B8, FallbackLoad<gl::supportsSSE2, LoadA8ToBGRA8_SSE2, LoadA8ToBGRA8>); |
| |
| InsertD3D9FormatInfo(&map, GL_RGB8_OES, D3DFMT_X8R8G8B8, D3DFMT_X8R8G8B8, LoadRGB8ToBGRX8 ); |
| InsertD3D9FormatInfo(&map, GL_RGB565, D3DFMT_X8R8G8B8, D3DFMT_X8R8G8B8, LoadR5G6B5ToBGRA8 ); |
| InsertD3D9FormatInfo(&map, GL_RGBA8_OES, D3DFMT_A8R8G8B8, D3DFMT_A8R8G8B8, FallbackLoad<gl::supportsSSE2, LoadRGBA8ToBGRA8_SSE2, LoadRGBA8ToBGRA8>); |
| InsertD3D9FormatInfo(&map, GL_RGBA4, D3DFMT_A8R8G8B8, D3DFMT_A8R8G8B8, LoadRGBA4ToBGRA8 ); |
| InsertD3D9FormatInfo(&map, GL_RGB5_A1, D3DFMT_A8R8G8B8, D3DFMT_A8R8G8B8, LoadRGB5A1ToBGRA8 ); |
| InsertD3D9FormatInfo(&map, GL_R8_EXT, D3DFMT_X8R8G8B8, D3DFMT_X8R8G8B8, LoadR8ToBGRX8 ); |
| InsertD3D9FormatInfo(&map, GL_RG8_EXT, D3DFMT_X8R8G8B8, D3DFMT_X8R8G8B8, LoadRG8ToBGRX8 ); |
| |
| InsertD3D9FormatInfo(&map, GL_BGRA8_EXT, D3DFMT_A8R8G8B8, D3DFMT_A8R8G8B8, LoadToNative<GLubyte, 4> ); |
| InsertD3D9FormatInfo(&map, GL_BGRA4_ANGLEX, D3DFMT_A8R8G8B8, D3DFMT_A8R8G8B8, LoadBGRA4ToBGRA8 ); |
| InsertD3D9FormatInfo(&map, GL_BGR5_A1_ANGLEX, D3DFMT_A8R8G8B8, D3DFMT_A8R8G8B8, LoadBGR5A1ToBGRA8 ); |
| |
| InsertD3D9FormatInfo(&map, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, D3DFMT_DXT1, D3DFMT_UNKNOWN, LoadCompressedToNative<4, 4, 8> ); |
| InsertD3D9FormatInfo(&map, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, D3DFMT_DXT1, D3DFMT_UNKNOWN, LoadCompressedToNative<4, 4, 8> ); |
| InsertD3D9FormatInfo(&map, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, D3DFMT_DXT3, D3DFMT_UNKNOWN, LoadCompressedToNative<4, 4, 16> ); |
| InsertD3D9FormatInfo(&map, GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE, D3DFMT_DXT5, D3DFMT_UNKNOWN, LoadCompressedToNative<4, 4, 16> ); |
| |
| // These formats require checking if the renderer supports D3DFMT_L8 or D3DFMT_A8L8 and |
| // then changing the format and loading function appropriately. |
| InsertD3D9FormatInfo(&map, GL_LUMINANCE8_EXT, D3DFMT_L8, D3DFMT_UNKNOWN, LoadToNative<GLubyte, 1> ); |
| InsertD3D9FormatInfo(&map, GL_LUMINANCE8_ALPHA8_EXT, D3DFMT_A8L8, D3DFMT_UNKNOWN, LoadToNative<GLubyte, 2> ); |
| |
| return map; |
| } |
| |
| const TextureFormat &GetTextureFormatInfo(GLenum internalFormat) |
| { |
| static const D3D9FormatMap formatMap = BuildD3D9FormatMap(); |
| D3D9FormatMap::const_iterator iter = formatMap.find(internalFormat); |
| if (iter != formatMap.end()) |
| { |
| return iter->second; |
| } |
| else |
| { |
| static const TextureFormat defaultInfo; |
| return defaultInfo; |
| } |
| } |
| |
| static GLenum GetDeclTypeComponentType(D3DDECLTYPE declType) |
| { |
| switch (declType) |
| { |
| case D3DDECLTYPE_FLOAT1: return GL_FLOAT; |
| case D3DDECLTYPE_FLOAT2: return GL_FLOAT; |
| case D3DDECLTYPE_FLOAT3: return GL_FLOAT; |
| case D3DDECLTYPE_FLOAT4: return GL_FLOAT; |
| case D3DDECLTYPE_UBYTE4: return GL_UNSIGNED_INT; |
| case D3DDECLTYPE_SHORT2: return GL_INT; |
| case D3DDECLTYPE_SHORT4: return GL_INT; |
| case D3DDECLTYPE_UBYTE4N: return GL_UNSIGNED_NORMALIZED; |
| case D3DDECLTYPE_SHORT4N: return GL_SIGNED_NORMALIZED; |
| case D3DDECLTYPE_USHORT4N: return GL_UNSIGNED_NORMALIZED; |
| case D3DDECLTYPE_SHORT2N: return GL_SIGNED_NORMALIZED; |
| case D3DDECLTYPE_USHORT2N: return GL_UNSIGNED_NORMALIZED; |
| default: UNREACHABLE(); return GL_NONE; |
| } |
| } |
| |
| // Attribute format conversion |
| enum { NUM_GL_VERTEX_ATTRIB_TYPES = 6 }; |
| |
| struct TranslationDescription |
| { |
| DWORD capsFlag; |
| VertexFormat preferredConversion; |
| VertexFormat fallbackConversion; |
| }; |
| |
| // Mapping from OpenGL-ES vertex attrib type to D3D decl type: |
| // |
| // BYTE SHORT (Cast) |
| // BYTE-norm FLOAT (Normalize) (can't be exactly represented as SHORT-norm) |
| // UNSIGNED_BYTE UBYTE4 (Identity) or SHORT (Cast) |
| // UNSIGNED_BYTE-norm UBYTE4N (Identity) or FLOAT (Normalize) |
| // SHORT SHORT (Identity) |
| // SHORT-norm SHORT-norm (Identity) or FLOAT (Normalize) |
| // UNSIGNED_SHORT FLOAT (Cast) |
| // UNSIGNED_SHORT-norm USHORT-norm (Identity) or FLOAT (Normalize) |
| // FIXED (not in WebGL) FLOAT (FixedToFloat) |
| // FLOAT FLOAT (Identity) |
| |
| // GLToCType maps from GL type (as GLenum) to the C typedef. |
| template <GLenum GLType> struct GLToCType { }; |
| |
| template <> struct GLToCType<GL_BYTE> { typedef GLbyte type; }; |
| template <> struct GLToCType<GL_UNSIGNED_BYTE> { typedef GLubyte type; }; |
| template <> struct GLToCType<GL_SHORT> { typedef GLshort type; }; |
| template <> struct GLToCType<GL_UNSIGNED_SHORT> { typedef GLushort type; }; |
| template <> struct GLToCType<GL_FIXED> { typedef GLuint type; }; |
| template <> struct GLToCType<GL_FLOAT> { typedef GLfloat type; }; |
| |
| // This differs from D3DDECLTYPE in that it is unsized. (Size expansion is applied last.) |
| enum D3DVertexType |
| { |
| D3DVT_FLOAT, |
| D3DVT_SHORT, |
| D3DVT_SHORT_NORM, |
| D3DVT_UBYTE, |
| D3DVT_UBYTE_NORM, |
| D3DVT_USHORT_NORM |
| }; |
| |
| // D3DToCType maps from D3D vertex type (as enum D3DVertexType) to the corresponding C type. |
| template <unsigned int D3DType> struct D3DToCType { }; |
| |
| template <> struct D3DToCType<D3DVT_FLOAT> { typedef float type; }; |
| template <> struct D3DToCType<D3DVT_SHORT> { typedef short type; }; |
| template <> struct D3DToCType<D3DVT_SHORT_NORM> { typedef short type; }; |
| template <> struct D3DToCType<D3DVT_UBYTE> { typedef unsigned char type; }; |
| template <> struct D3DToCType<D3DVT_UBYTE_NORM> { typedef unsigned char type; }; |
| template <> struct D3DToCType<D3DVT_USHORT_NORM> { typedef unsigned short type; }; |
| |
| // Encode the type/size combinations that D3D permits. For each type/size it expands to a widener that will provide the appropriate final size. |
| template <unsigned int type, int size> struct WidenRule { }; |
| |
| template <int size> struct WidenRule<D3DVT_FLOAT, size> : NoWiden<size> { }; |
| template <int size> struct WidenRule<D3DVT_SHORT, size> : WidenToEven<size> { }; |
| template <int size> struct WidenRule<D3DVT_SHORT_NORM, size> : WidenToEven<size> { }; |
| template <int size> struct WidenRule<D3DVT_UBYTE, size> : WidenToFour<size> { }; |
| template <int size> struct WidenRule<D3DVT_UBYTE_NORM, size> : WidenToFour<size> { }; |
| template <int size> struct WidenRule<D3DVT_USHORT_NORM, size> : WidenToEven<size> { }; |
| |
| // VertexTypeFlags encodes the D3DCAPS9::DeclType flag and vertex declaration flag for each D3D vertex type & size combination. |
| template <unsigned int d3dtype, int size> struct VertexTypeFlags { }; |
| |
| template <unsigned int _capflag, unsigned int _declflag> |
| struct VertexTypeFlagsHelper |
| { |
| enum { capflag = _capflag }; |
| enum { declflag = _declflag }; |
| }; |
| |
| template <> struct VertexTypeFlags<D3DVT_FLOAT, 1> : VertexTypeFlagsHelper<0, D3DDECLTYPE_FLOAT1> { }; |
| template <> struct VertexTypeFlags<D3DVT_FLOAT, 2> : VertexTypeFlagsHelper<0, D3DDECLTYPE_FLOAT2> { }; |
| template <> struct VertexTypeFlags<D3DVT_FLOAT, 3> : VertexTypeFlagsHelper<0, D3DDECLTYPE_FLOAT3> { }; |
| template <> struct VertexTypeFlags<D3DVT_FLOAT, 4> : VertexTypeFlagsHelper<0, D3DDECLTYPE_FLOAT4> { }; |
| template <> struct VertexTypeFlags<D3DVT_SHORT, 2> : VertexTypeFlagsHelper<0, D3DDECLTYPE_SHORT2> { }; |
| template <> struct VertexTypeFlags<D3DVT_SHORT, 4> : VertexTypeFlagsHelper<0, D3DDECLTYPE_SHORT4> { }; |
| template <> struct VertexTypeFlags<D3DVT_SHORT_NORM, 2> : VertexTypeFlagsHelper<D3DDTCAPS_SHORT2N, D3DDECLTYPE_SHORT2N> { }; |
| template <> struct VertexTypeFlags<D3DVT_SHORT_NORM, 4> : VertexTypeFlagsHelper<D3DDTCAPS_SHORT4N, D3DDECLTYPE_SHORT4N> { }; |
| template <> struct VertexTypeFlags<D3DVT_UBYTE, 4> : VertexTypeFlagsHelper<D3DDTCAPS_UBYTE4, D3DDECLTYPE_UBYTE4> { }; |
| template <> struct VertexTypeFlags<D3DVT_UBYTE_NORM, 4> : VertexTypeFlagsHelper<D3DDTCAPS_UBYTE4N, D3DDECLTYPE_UBYTE4N> { }; |
| template <> struct VertexTypeFlags<D3DVT_USHORT_NORM, 2> : VertexTypeFlagsHelper<D3DDTCAPS_USHORT2N, D3DDECLTYPE_USHORT2N> { }; |
| template <> struct VertexTypeFlags<D3DVT_USHORT_NORM, 4> : VertexTypeFlagsHelper<D3DDTCAPS_USHORT4N, D3DDECLTYPE_USHORT4N> { }; |
| |
| |
| // VertexTypeMapping maps GL type & normalized flag to preferred and fallback D3D vertex types (as D3DVertexType enums). |
| template <GLenum GLtype, bool normalized> struct VertexTypeMapping { }; |
| |
| template <D3DVertexType Preferred, D3DVertexType Fallback = Preferred> |
| struct VertexTypeMappingBase |
| { |
| enum { preferred = Preferred }; |
| enum { fallback = Fallback }; |
| }; |
| |
| template <> struct VertexTypeMapping<GL_BYTE, false> : VertexTypeMappingBase<D3DVT_SHORT> { }; // Cast |
| template <> struct VertexTypeMapping<GL_BYTE, true> : VertexTypeMappingBase<D3DVT_FLOAT> { }; // Normalize |
| template <> struct VertexTypeMapping<GL_UNSIGNED_BYTE, false> : VertexTypeMappingBase<D3DVT_UBYTE, D3DVT_FLOAT> { }; // Identity, Cast |
| template <> struct VertexTypeMapping<GL_UNSIGNED_BYTE, true> : VertexTypeMappingBase<D3DVT_UBYTE_NORM, D3DVT_FLOAT> { }; // Identity, Normalize |
| template <> struct VertexTypeMapping<GL_SHORT, false> : VertexTypeMappingBase<D3DVT_SHORT> { }; // Identity |
| template <> struct VertexTypeMapping<GL_SHORT, true> : VertexTypeMappingBase<D3DVT_SHORT_NORM, D3DVT_FLOAT> { }; // Cast, Normalize |
| template <> struct VertexTypeMapping<GL_UNSIGNED_SHORT, false> : VertexTypeMappingBase<D3DVT_FLOAT> { }; // Cast |
| template <> struct VertexTypeMapping<GL_UNSIGNED_SHORT, true> : VertexTypeMappingBase<D3DVT_USHORT_NORM, D3DVT_FLOAT> { }; // Cast, Normalize |
| template <bool normalized> struct VertexTypeMapping<GL_FIXED, normalized> : VertexTypeMappingBase<D3DVT_FLOAT> { }; // FixedToFloat |
| template <bool normalized> struct VertexTypeMapping<GL_FLOAT, normalized> : VertexTypeMappingBase<D3DVT_FLOAT> { }; // Identity |
| |
| |
| // Given a GL type & norm flag and a D3D type, ConversionRule provides the type conversion rule (Cast, Normalize, Identity, FixedToFloat). |
| // The conversion rules themselves are defined in vertexconversion.h. |
| |
| // Almost all cases are covered by Cast (including those that are actually Identity since Cast<T,T> knows it's an identity mapping). |
| template <GLenum fromType, bool normalized, unsigned int toType> |
| struct ConversionRule : Cast<typename GLToCType<fromType>::type, typename D3DToCType<toType>::type> { }; |
| |
| // All conversions from normalized types to float use the Normalize operator. |
| template <GLenum fromType> struct ConversionRule<fromType, true, D3DVT_FLOAT> : Normalize<typename GLToCType<fromType>::type> { }; |
| |
| // Use a full specialization for this so that it preferentially matches ahead of the generic normalize-to-float rules. |
| template <> struct ConversionRule<GL_FIXED, true, D3DVT_FLOAT> : FixedToFloat<GLint, 16> { }; |
| template <> struct ConversionRule<GL_FIXED, false, D3DVT_FLOAT> : FixedToFloat<GLint, 16> { }; |
| |
| // A 2-stage construction is used for DefaultVertexValues because float must use SimpleDefaultValues (i.e. 0/1) |
| // whether it is normalized or not. |
| template <class T, bool normalized> struct DefaultVertexValuesStage2 { }; |
| |
| template <class T> struct DefaultVertexValuesStage2<T, true> : NormalizedDefaultValues<T> { }; |
| template <class T> struct DefaultVertexValuesStage2<T, false> : SimpleDefaultValues<T> { }; |
| |
| // Work out the default value rule for a D3D type (expressed as the C type) and |
| template <class T, bool normalized> struct DefaultVertexValues : DefaultVertexValuesStage2<T, normalized> { }; |
| template <bool normalized> struct DefaultVertexValues<float, normalized> : SimpleDefaultValues<float> { }; |
| |
| // Policy rules for use with Converter, to choose whether to use the preferred or fallback conversion. |
| // The fallback conversion produces an output that all D3D9 devices must support. |
| template <class T> struct UsePreferred { enum { type = T::preferred }; }; |
| template <class T> struct UseFallback { enum { type = T::fallback }; }; |
| |
| // Converter ties it all together. Given an OpenGL type/norm/size and choice of preferred/fallback conversion, |
| // it provides all the members of the appropriate VertexDataConverter, the D3DCAPS9::DeclTypes flag in cap flag |
| // and the D3DDECLTYPE member needed for the vertex declaration in declflag. |
| template <GLenum fromType, bool normalized, int size, template <class T> class PreferenceRule> |
| struct Converter |
| : VertexDataConverter<typename GLToCType<fromType>::type, |
| WidenRule<PreferenceRule< VertexTypeMapping<fromType, normalized> >::type, size>, |
| ConversionRule<fromType, |
| normalized, |
| PreferenceRule< VertexTypeMapping<fromType, normalized> >::type>, |
| DefaultVertexValues<typename D3DToCType<PreferenceRule< VertexTypeMapping<fromType, normalized> >::type>::type, normalized > > |
| { |
| private: |
| enum { d3dtype = PreferenceRule< VertexTypeMapping<fromType, normalized> >::type }; |
| enum { d3dsize = WidenRule<d3dtype, size>::finalWidth }; |
| |
| public: |
| enum { capflag = VertexTypeFlags<d3dtype, d3dsize>::capflag }; |
| enum { declflag = VertexTypeFlags<d3dtype, d3dsize>::declflag }; |
| }; |
| |
| VertexFormat::VertexFormat() |
| : conversionType(VERTEX_CONVERT_NONE), |
| outputElementSize(0), |
| copyFunction(NULL), |
| nativeFormat(D3DDECLTYPE_UNUSED), |
| componentType(GL_NONE) |
| { |
| } |
| |
| // Initialize a TranslationInfo |
| VertexFormat CreateVertexFormatInfo(bool identity, size_t elementSize, VertexCopyFunction copyFunc, D3DDECLTYPE nativeFormat) |
| { |
| VertexFormat formatInfo; |
| formatInfo.conversionType = identity ? VERTEX_CONVERT_NONE : VERTEX_CONVERT_CPU; |
| formatInfo.outputElementSize = elementSize; |
| formatInfo.copyFunction = copyFunc; |
| formatInfo.nativeFormat = nativeFormat; |
| formatInfo.componentType = GetDeclTypeComponentType(nativeFormat); |
| return formatInfo; |
| } |
| |
| #define TRANSLATION(type, norm, size, preferred) \ |
| CreateVertexFormatInfo \ |
| ( \ |
| Converter<type, norm, size, preferred>::identity, \ |
| Converter<type, norm, size, preferred>::finalSize, \ |
| Converter<type, norm, size, preferred>::convertArray, \ |
| static_cast<D3DDECLTYPE>(Converter<type, norm, size, preferred>::declflag) \ |
| ) |
| |
| #define TRANSLATION_FOR_TYPE_NORM_SIZE(type, norm, size) \ |
| { \ |
| Converter<type, norm, size, UsePreferred>::capflag, \ |
| TRANSLATION(type, norm, size, UsePreferred), \ |
| TRANSLATION(type, norm, size, UseFallback) \ |
| } |
| |
| #define TRANSLATIONS_FOR_TYPE(type) \ |
| { \ |
| { TRANSLATION_FOR_TYPE_NORM_SIZE(type, false, 1), TRANSLATION_FOR_TYPE_NORM_SIZE(type, false, 2), TRANSLATION_FOR_TYPE_NORM_SIZE(type, false, 3), TRANSLATION_FOR_TYPE_NORM_SIZE(type, false, 4) }, \ |
| { TRANSLATION_FOR_TYPE_NORM_SIZE(type, true, 1), TRANSLATION_FOR_TYPE_NORM_SIZE(type, true, 2), TRANSLATION_FOR_TYPE_NORM_SIZE(type, true, 3), TRANSLATION_FOR_TYPE_NORM_SIZE(type, true, 4) }, \ |
| } |
| |
| #define TRANSLATIONS_FOR_TYPE_NO_NORM(type) \ |
| { \ |
| { TRANSLATION_FOR_TYPE_NORM_SIZE(type, false, 1), TRANSLATION_FOR_TYPE_NORM_SIZE(type, false, 2), TRANSLATION_FOR_TYPE_NORM_SIZE(type, false, 3), TRANSLATION_FOR_TYPE_NORM_SIZE(type, false, 4) }, \ |
| { TRANSLATION_FOR_TYPE_NORM_SIZE(type, false, 1), TRANSLATION_FOR_TYPE_NORM_SIZE(type, false, 2), TRANSLATION_FOR_TYPE_NORM_SIZE(type, false, 3), TRANSLATION_FOR_TYPE_NORM_SIZE(type, false, 4) }, \ |
| } |
| |
| static inline unsigned int ComputeTypeIndex(GLenum type) |
| { |
| switch (type) |
| { |
| case GL_BYTE: return 0; |
| case GL_UNSIGNED_BYTE: return 1; |
| case GL_SHORT: return 2; |
| case GL_UNSIGNED_SHORT: return 3; |
| case GL_FIXED: return 4; |
| case GL_FLOAT: return 5; |
| |
| default: UNREACHABLE(); return 5; |
| } |
| } |
| |
| const VertexFormat &GetVertexFormatInfo(DWORD supportedDeclTypes, const gl::VertexFormat &vertexFormat) |
| { |
| static bool initialized = false; |
| static DWORD intializedDeclTypes = 0; |
| static VertexFormat formatConverters[NUM_GL_VERTEX_ATTRIB_TYPES][2][4]; |
| if (!initialized) |
| { |
| const TranslationDescription translations[NUM_GL_VERTEX_ATTRIB_TYPES][2][4] = // [GL types as enumerated by typeIndex()][normalized][size-1] |
| { |
| TRANSLATIONS_FOR_TYPE(GL_BYTE), |
| TRANSLATIONS_FOR_TYPE(GL_UNSIGNED_BYTE), |
| TRANSLATIONS_FOR_TYPE(GL_SHORT), |
| TRANSLATIONS_FOR_TYPE(GL_UNSIGNED_SHORT), |
| TRANSLATIONS_FOR_TYPE_NO_NORM(GL_FIXED), |
| TRANSLATIONS_FOR_TYPE_NO_NORM(GL_FLOAT) |
| }; |
| for (unsigned int i = 0; i < NUM_GL_VERTEX_ATTRIB_TYPES; i++) |
| { |
| for (unsigned int j = 0; j < 2; j++) |
| { |
| for (unsigned int k = 0; k < 4; k++) |
| { |
| if (translations[i][j][k].capsFlag == 0 || (supportedDeclTypes & translations[i][j][k].capsFlag) != 0) |
| { |
| formatConverters[i][j][k] = translations[i][j][k].preferredConversion; |
| } |
| else |
| { |
| formatConverters[i][j][k] = translations[i][j][k].fallbackConversion; |
| } |
| } |
| } |
| } |
| initialized = true; |
| intializedDeclTypes = supportedDeclTypes; |
| } |
| |
| ASSERT(intializedDeclTypes == supportedDeclTypes); |
| |
| // Pure integer attributes only supported in ES3.0 |
| ASSERT(!vertexFormat.mPureInteger); |
| return formatConverters[ComputeTypeIndex(vertexFormat.mType)][vertexFormat.mNormalized][vertexFormat.mComponents - 1]; |
| } |
| |
| } |
| |
| } |
