diff options
Diffstat (limited to 'src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d9/formatutils9.cpp')
| -rw-r--r-- | src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d9/formatutils9.cpp | 602 |
1 files changed, 602 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d9/formatutils9.cpp b/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d9/formatutils9.cpp new file mode 100644 index 0000000000..9bad5503d9 --- /dev/null +++ b/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d9/formatutils9.cpp @@ -0,0 +1,602 @@ +// +// 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 "libANGLE/renderer/d3d/copyimage.h" +#include "libANGLE/renderer/d3d/d3d9/formatutils9.h" +#include "libANGLE/renderer/d3d/d3d9/Renderer9.h" +#include "libANGLE/renderer/d3d/d3d9/vertexconversion.h" +#include "libANGLE/renderer/d3d/generatemip.h" +#include "libANGLE/renderer/d3d/loadimage.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, CopyBGRA8ToRGBA8))); + + 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), + redBits(0), + greenBits(0), + blueBits(0), + alphaBits(0), + luminanceBits(0), + depthBits(0), + stencilBits(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, GLuint redBits, GLuint greenBits, GLuint blueBits, + GLuint alphaBits, GLuint lumBits, GLuint depthBits, GLuint stencilBits, + GLenum internalFormat, MipGenerationFunction mipFunc, + ColorReadFunction colorReadFunc) +{ + D3DFormat info; + info.pixelBytes = bits / 8; + info.blockWidth = blockWidth; + info.blockHeight = blockHeight; + info.redBits = redBits; + info.greenBits = greenBits; + info.blueBits = blueBits; + info.alphaBits = alphaBits; + info.luminanceBits = lumBits; + info.depthBits = depthBits; + info.stencilBits = stencilBits; + 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 | R | G | B | A | L | D | S | Internal format | Mip generation function | Color read function | + InsertD3DFormatInfo(&map, D3DFMT_NULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, GL_NONE, NULL, NULL ); + InsertD3DFormatInfo(&map, D3DFMT_UNKNOWN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, GL_NONE, NULL, NULL ); + + InsertD3DFormatInfo(&map, D3DFMT_L8, 8, 1, 1, 0, 0, 0, 0, 8, 0, 0, GL_LUMINANCE8_EXT, GenerateMip<L8>, ReadColor<L8, GLfloat> ); + InsertD3DFormatInfo(&map, D3DFMT_A8, 8, 1, 1, 0, 0, 0, 8, 0, 0, 0, GL_ALPHA8_EXT, GenerateMip<A8>, ReadColor<A8, GLfloat> ); + InsertD3DFormatInfo(&map, D3DFMT_A8L8, 16, 1, 1, 0, 0, 0, 8, 8, 0, 0, GL_LUMINANCE8_ALPHA8_EXT, GenerateMip<A8L8>, ReadColor<A8L8, GLfloat> ); + InsertD3DFormatInfo(&map, D3DFMT_A4R4G4B4, 16, 1, 1, 4, 4, 4, 4, 0, 0, 0, GL_BGRA4_ANGLEX, GenerateMip<B4G4R4A4>, ReadColor<B4G4R4A4, GLfloat> ); + InsertD3DFormatInfo(&map, D3DFMT_A1R5G5B5, 16, 1, 1, 5, 5, 5, 1, 0, 0, 0, GL_BGR5_A1_ANGLEX, GenerateMip<B5G5R5A1>, ReadColor<B5G5R5A1, GLfloat> ); + InsertD3DFormatInfo(&map, D3DFMT_R5G6B5, 16, 1, 1, 5, 6, 5, 0, 0, 0, 0, GL_RGB565, GenerateMip<R5G6B5>, ReadColor<R5G6B5, GLfloat> ); + InsertD3DFormatInfo(&map, D3DFMT_X8R8G8B8, 32, 1, 1, 8, 8, 8, 0, 0, 0, 0, GL_BGRA8_EXT, GenerateMip<B8G8R8X8>, ReadColor<B8G8R8X8, GLfloat> ); + InsertD3DFormatInfo(&map, D3DFMT_A8R8G8B8, 32, 1, 1, 8, 8, 8, 8, 0, 0, 0, GL_BGRA8_EXT, GenerateMip<B8G8R8A8>, ReadColor<B8G8R8A8, GLfloat> ); + InsertD3DFormatInfo(&map, D3DFMT_R16F, 16, 1, 1, 16, 0, 0, 0, 0, 0, 0, GL_R16F_EXT, GenerateMip<R16F>, ReadColor<R16F, GLfloat> ); + InsertD3DFormatInfo(&map, D3DFMT_G16R16F, 32, 1, 1, 16, 16, 0, 0, 0, 0, 0, GL_RG16F_EXT, GenerateMip<R16G16F>, ReadColor<R16G16F, GLfloat> ); + InsertD3DFormatInfo(&map, D3DFMT_A16B16G16R16F, 64, 1, 1, 16, 16, 16, 16, 0, 0, 0, GL_RGBA16F_EXT, GenerateMip<R16G16B16A16F>, ReadColor<R16G16B16A16F, GLfloat>); + InsertD3DFormatInfo(&map, D3DFMT_R32F, 32, 1, 1, 32, 0, 0, 0, 0, 0, 0, GL_R32F_EXT, GenerateMip<R32F>, ReadColor<R32F, GLfloat> ); + InsertD3DFormatInfo(&map, D3DFMT_G32R32F, 64, 1, 1, 32, 32, 0, 0, 0, 0, 0, GL_RG32F_EXT, GenerateMip<R32G32F>, ReadColor<R32G32F, GLfloat> ); + InsertD3DFormatInfo(&map, D3DFMT_A32B32G32R32F, 128, 1, 1, 32, 32, 32, 32, 0, 0, 0, GL_RGBA32F_EXT, GenerateMip<R32G32B32A32F>, ReadColor<R32G32B32A32F, GLfloat>); + + InsertD3DFormatInfo(&map, D3DFMT_D16, 16, 1, 1, 0, 0, 0, 0, 0, 16, 0, GL_DEPTH_COMPONENT16, NULL, NULL ); + InsertD3DFormatInfo(&map, D3DFMT_D24S8, 32, 1, 1, 0, 0, 0, 0, 0, 24, 8, GL_DEPTH24_STENCIL8_OES, NULL, NULL ); + InsertD3DFormatInfo(&map, D3DFMT_D24X8, 32, 1, 1, 0, 0, 0, 0, 0, 24, 0, GL_DEPTH_COMPONENT16, NULL, NULL ); + InsertD3DFormatInfo(&map, D3DFMT_D32, 32, 1, 1, 0, 0, 0, 0, 0, 32, 0, GL_DEPTH_COMPONENT32_OES, NULL, NULL ); + + InsertD3DFormatInfo(&map, D3DFMT_INTZ, 32, 1, 1, 0, 0, 0, 0, 0, 24, 8, GL_DEPTH24_STENCIL8_OES, NULL, NULL ); + + InsertD3DFormatInfo(&map, D3DFMT_DXT1, 64, 4, 4, 0, 0, 0, 0, 0, 0, 0, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, NULL, NULL ); + InsertD3DFormatInfo(&map, D3DFMT_DXT3, 128, 4, 4, 0, 0, 0, 0, 0, 0, 0, GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE, NULL, NULL ); + InsertD3DFormatInfo(&map, D3DFMT_DXT5, 128, 4, 4, 0, 0, 0, 0, 0, 0, 0, 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_UNKNOWN), + renderFormat(D3DFMT_UNKNOWN), + 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 (intializedDeclTypes != supportedDeclTypes) + { + 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; + } + + // Pure integer attributes only supported in ES3.0 + ASSERT(!vertexFormat.mPureInteger); + return formatConverters[ComputeTypeIndex(vertexFormat.mType)][vertexFormat.mNormalized][vertexFormat.mComponents - 1]; +} + +} + +} |