diff options
Diffstat (limited to 'src/3rdparty/angle/src/libGLESv2/renderer/VertexBuffer9.cpp')
| -rw-r--r-- | src/3rdparty/angle/src/libGLESv2/renderer/VertexBuffer9.cpp | 486 |
1 files changed, 486 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libGLESv2/renderer/VertexBuffer9.cpp b/src/3rdparty/angle/src/libGLESv2/renderer/VertexBuffer9.cpp new file mode 100644 index 0000000000..76dc73e391 --- /dev/null +++ b/src/3rdparty/angle/src/libGLESv2/renderer/VertexBuffer9.cpp @@ -0,0 +1,486 @@ +#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); + } +} + +} |