| #include "precompiled.h" |
| // |
| // Copyright (c) 2002-2012 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. |
| // |
| |
| // VertexBuffer9.cpp: Defines the D3D9 VertexBuffer implementation. |
| |
| #include "libGLESv2/renderer/VertexBuffer9.h" |
| #include "libGLESv2/renderer/vertexconversion.h" |
| #include "libGLESv2/renderer/BufferStorage.h" |
| #include "libGLESv2/Context.h" |
| #include "libGLESv2/renderer/Renderer9.h" |
| |
| #include "libGLESv2/Buffer.h" |
| |
| namespace rx |
| { |
| |
| bool VertexBuffer9::mTranslationsInitialized = false; |
| VertexBuffer9::FormatConverter VertexBuffer9::mFormatConverters[NUM_GL_VERTEX_ATTRIB_TYPES][2][4]; |
| |
| VertexBuffer9::VertexBuffer9(rx::Renderer9 *const renderer) : mRenderer(renderer) |
| { |
| mVertexBuffer = NULL; |
| mBufferSize = 0; |
| mDynamicUsage = false; |
| |
| if (!mTranslationsInitialized) |
| { |
| initializeTranslations(renderer->getCapsDeclTypes()); |
| mTranslationsInitialized = true; |
| } |
| } |
| |
| VertexBuffer9::~VertexBuffer9() |
| { |
| if (mVertexBuffer) |
| { |
| mVertexBuffer->Release(); |
| mVertexBuffer = NULL; |
| } |
| } |
| |
| bool VertexBuffer9::initialize(unsigned int size, bool dynamicUsage) |
| { |
| if (mVertexBuffer) |
| { |
| mVertexBuffer->Release(); |
| mVertexBuffer = NULL; |
| } |
| |
| updateSerial(); |
| |
| if (size > 0) |
| { |
| DWORD flags = D3DUSAGE_WRITEONLY; |
| if (dynamicUsage) |
| { |
| flags |= D3DUSAGE_DYNAMIC; |
| } |
| |
| HRESULT result = mRenderer->createVertexBuffer(size, flags, &mVertexBuffer); |
| |
| if (FAILED(result)) |
| { |
| ERR("Out of memory allocating a vertex buffer of size %lu.", size); |
| return false; |
| } |
| } |
| |
| mBufferSize = size; |
| mDynamicUsage = dynamicUsage; |
| return true; |
| } |
| |
| VertexBuffer9 *VertexBuffer9::makeVertexBuffer9(VertexBuffer *vertexBuffer) |
| { |
| ASSERT(HAS_DYNAMIC_TYPE(VertexBuffer9*, vertexBuffer)); |
| return static_cast<VertexBuffer9*>(vertexBuffer); |
| } |
| |
| bool VertexBuffer9::storeVertexAttributes(const gl::VertexAttribute &attrib, GLint start, GLsizei count, |
| GLsizei instances, unsigned int offset) |
| { |
| if (mVertexBuffer) |
| { |
| gl::Buffer *buffer = attrib.mBoundBuffer.get(); |
| |
| int inputStride = attrib.stride(); |
| int elementSize = attrib.typeSize(); |
| const FormatConverter &converter = formatConverter(attrib); |
| |
| DWORD lockFlags = mDynamicUsage ? D3DLOCK_NOOVERWRITE : 0; |
| |
| void *mapPtr = NULL; |
| HRESULT result = mVertexBuffer->Lock(offset, spaceRequired(attrib, count, instances), &mapPtr, lockFlags); |
| |
| if (FAILED(result)) |
| { |
| ERR("Lock failed with error 0x%08x", result); |
| return false; |
| } |
| |
| const char *input = NULL; |
| if (buffer) |
| { |
| BufferStorage *storage = buffer->getStorage(); |
| input = static_cast<const char*>(storage->getData()) + static_cast<int>(attrib.mOffset); |
| } |
| else |
| { |
| input = static_cast<const char*>(attrib.mPointer); |
| } |
| |
| if (instances == 0 || attrib.mDivisor == 0) |
| { |
| input += inputStride * start; |
| } |
| |
| if (converter.identity && inputStride == elementSize) |
| { |
| memcpy(mapPtr, input, count * inputStride); |
| } |
| else |
| { |
| converter.convertArray(input, inputStride, count, mapPtr); |
| } |
| |
| mVertexBuffer->Unlock(); |
| |
| return true; |
| } |
| else |
| { |
| ERR("Vertex buffer not initialized."); |
| return false; |
| } |
| } |
| |
| bool VertexBuffer9::storeRawData(const void* data, unsigned int size, unsigned int offset) |
| { |
| if (mVertexBuffer) |
| { |
| DWORD lockFlags = mDynamicUsage ? D3DLOCK_NOOVERWRITE : 0; |
| |
| void *mapPtr = NULL; |
| HRESULT result = mVertexBuffer->Lock(offset, size, &mapPtr, lockFlags); |
| |
| if (FAILED(result)) |
| { |
| ERR("Lock failed with error 0x%08x", result); |
| return false; |
| } |
| |
| memcpy(mapPtr, data, size); |
| |
| mVertexBuffer->Unlock(); |
| |
| return true; |
| } |
| else |
| { |
| ERR("Vertex buffer not initialized."); |
| return false; |
| } |
| } |
| |
| unsigned int VertexBuffer9::getSpaceRequired(const gl::VertexAttribute &attrib, GLsizei count, GLsizei instances) const |
| { |
| return spaceRequired(attrib, count, instances); |
| } |
| |
| bool VertexBuffer9::requiresConversion(const gl::VertexAttribute &attrib) const |
| { |
| return formatConverter(attrib).identity; |
| } |
| |
| unsigned int VertexBuffer9::getVertexSize(const gl::VertexAttribute &attrib) const |
| { |
| return spaceRequired(attrib, 1, 0); |
| } |
| |
| D3DDECLTYPE VertexBuffer9::getDeclType(const gl::VertexAttribute &attrib) const |
| { |
| return formatConverter(attrib).d3dDeclType; |
| } |
| |
| unsigned int VertexBuffer9::getBufferSize() const |
| { |
| return mBufferSize; |
| } |
| |
| bool VertexBuffer9::setBufferSize(unsigned int size) |
| { |
| if (size > mBufferSize) |
| { |
| return initialize(size, mDynamicUsage); |
| } |
| else |
| { |
| return true; |
| } |
| } |
| |
| bool VertexBuffer9::discard() |
| { |
| if (mVertexBuffer) |
| { |
| void *dummy; |
| HRESULT result; |
| |
| result = mVertexBuffer->Lock(0, 1, &dummy, D3DLOCK_DISCARD); |
| if (FAILED(result)) |
| { |
| ERR("Discard lock failed with error 0x%08x", result); |
| return false; |
| } |
| |
| result = mVertexBuffer->Unlock(); |
| if (FAILED(result)) |
| { |
| ERR("Discard unlock failed with error 0x%08x", result); |
| return false; |
| } |
| |
| return true; |
| } |
| else |
| { |
| ERR("Vertex buffer not initialized."); |
| return false; |
| } |
| } |
| |
| IDirect3DVertexBuffer9 * VertexBuffer9::getBuffer() const |
| { |
| return mVertexBuffer; |
| } |
| |
| // 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 }; |
| }; |
| |
| // Initialize a TranslationInfo |
| #define TRANSLATION(type, norm, size, preferred) \ |
| { \ |
| 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) }, \ |
| } |
| |
| const VertexBuffer9::TranslationDescription VertexBuffer9::mPossibleTranslations[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) |
| }; |
| |
| void VertexBuffer9::initializeTranslations(DWORD declTypes) |
| { |
| 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 (mPossibleTranslations[i][j][k].capsFlag == 0 || (declTypes & mPossibleTranslations[i][j][k].capsFlag) != 0) |
| { |
| mFormatConverters[i][j][k] = mPossibleTranslations[i][j][k].preferredConversion; |
| } |
| else |
| { |
| mFormatConverters[i][j][k] = mPossibleTranslations[i][j][k].fallbackConversion; |
| } |
| } |
| } |
| } |
| } |
| |
| unsigned int VertexBuffer9::typeIndex(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 VertexBuffer9::FormatConverter &VertexBuffer9::formatConverter(const gl::VertexAttribute &attribute) |
| { |
| return mFormatConverters[typeIndex(attribute.mType)][attribute.mNormalized][attribute.mSize - 1]; |
| } |
| |
| unsigned int VertexBuffer9::spaceRequired(const gl::VertexAttribute &attrib, std::size_t count, GLsizei instances) |
| { |
| unsigned int elementSize = formatConverter(attrib).outputElementSize; |
| |
| if (instances == 0 || attrib.mDivisor == 0) |
| { |
| return elementSize * count; |
| } |
| else |
| { |
| return elementSize * ((instances + attrib.mDivisor - 1) / attrib.mDivisor); |
| } |
| } |
| |
| } |