diff options
Diffstat (limited to 'src/3rdparty/angle/src/libGLESv2/renderer/d3d/d3d9/VertexBuffer9.cpp')
| -rw-r--r-- | src/3rdparty/angle/src/libGLESv2/renderer/d3d/d3d9/VertexBuffer9.cpp | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libGLESv2/renderer/d3d/d3d9/VertexBuffer9.cpp b/src/3rdparty/angle/src/libGLESv2/renderer/d3d/d3d9/VertexBuffer9.cpp new file mode 100644 index 0000000000..d260640dbe --- /dev/null +++ b/src/3rdparty/angle/src/libGLESv2/renderer/d3d/d3d9/VertexBuffer9.cpp @@ -0,0 +1,252 @@ +#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/d3d/d3d9/VertexBuffer9.h" +#include "libGLESv2/renderer/vertexconversion.h" +#include "libGLESv2/renderer/BufferImpl.h" +#include "libGLESv2/VertexAttribute.h" +#include "libGLESv2/renderer/d3d/d3d9/Renderer9.h" +#include "libGLESv2/renderer/d3d/d3d9/formatutils9.h" + +#include "libGLESv2/Buffer.h" + +namespace rx +{ + +VertexBuffer9::VertexBuffer9(rx::Renderer9 *const renderer) : mRenderer(renderer) +{ + mVertexBuffer = NULL; + mBufferSize = 0; + mDynamicUsage = false; +} + +VertexBuffer9::~VertexBuffer9() +{ + SafeRelease(mVertexBuffer); +} + +bool VertexBuffer9::initialize(unsigned int size, bool dynamicUsage) +{ + SafeRelease(mVertexBuffer); + + 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, const gl::VertexAttribCurrentValueData ¤tValue, + GLint start, GLsizei count, GLsizei instances, unsigned int offset) +{ + if (mVertexBuffer) + { + gl::Buffer *buffer = attrib.buffer.get(); + + int inputStride = gl::ComputeVertexAttributeStride(attrib); + int elementSize = gl::ComputeVertexAttributeTypeSize(attrib); + + DWORD lockFlags = mDynamicUsage ? D3DLOCK_NOOVERWRITE : 0; + + void *mapPtr = NULL; + + unsigned int mapSize; + if (!spaceRequired(attrib, count, instances, &mapSize)) + { + return false; + } + + HRESULT result = mVertexBuffer->Lock(offset, mapSize, &mapPtr, lockFlags); + + if (FAILED(result)) + { + ERR("Lock failed with error 0x%08x", result); + return false; + } + + const char *input = NULL; + if (attrib.enabled) + { + if (buffer) + { + BufferImpl *storage = buffer->getImplementation(); + input = static_cast<const char*>(storage->getData()) + static_cast<int>(attrib.offset); + } + else + { + input = static_cast<const char*>(attrib.pointer); + } + } + else + { + input = reinterpret_cast<const char*>(currentValue.FloatValues); + } + + if (instances == 0 || attrib.divisor == 0) + { + input += inputStride * start; + } + + gl::VertexFormat vertexFormat(attrib, currentValue.Type); + bool needsConversion = (d3d9::GetVertexConversionType(vertexFormat) & VERTEX_CONVERT_CPU) > 0; + + if (!needsConversion && inputStride == elementSize) + { + size_t copySize = static_cast<size_t>(count) * static_cast<size_t>(inputStride); + memcpy(mapPtr, input, copySize); + } + else + { + VertexCopyFunction copyFunction = d3d9::GetVertexCopyFunction(vertexFormat); + copyFunction(input, inputStride, count, mapPtr); + } + + mVertexBuffer->Unlock(); + + return true; + } + else + { + ERR("Vertex buffer not initialized."); + return false; + } +} + +bool VertexBuffer9::getSpaceRequired(const gl::VertexAttribute &attrib, GLsizei count, GLsizei instances, + unsigned int *outSpaceRequired) const +{ + return spaceRequired(attrib, count, instances, outSpaceRequired); +} + +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; +} + +bool VertexBuffer9::spaceRequired(const gl::VertexAttribute &attrib, std::size_t count, GLsizei instances, + unsigned int *outSpaceRequired) +{ + gl::VertexFormat vertexFormat(attrib, GL_FLOAT); + unsigned int elementSize = d3d9::GetVertexElementSize(vertexFormat); + + if (attrib.enabled) + { + unsigned int elementCount = 0; + if (instances == 0 || attrib.divisor == 0) + { + elementCount = count; + } + else + { + if (static_cast<unsigned int>(instances) < std::numeric_limits<unsigned int>::max() - (attrib.divisor - 1)) + { + // Round up + elementCount = (static_cast<unsigned int>(instances) + (attrib.divisor - 1)) / attrib.divisor; + } + else + { + elementCount = static_cast<unsigned int>(instances) / attrib.divisor; + } + } + + if (elementSize <= std::numeric_limits<unsigned int>::max() / elementCount) + { + if (outSpaceRequired) + { + *outSpaceRequired = elementSize * elementCount; + } + return true; + } + else + { + return false; + } + } + else + { + const unsigned int elementSize = 4; + if (outSpaceRequired) + { + *outSpaceRequired = elementSize * 4; + } + return true; + } +} + +} |