| #include "precompiled.h" |
| // |
| // Copyright (c) 2013 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. |
| // |
| |
| // VertexBuffer11.cpp: Defines the D3D11 VertexBuffer implementation. |
| |
| #include "libGLESv2/renderer/d3d11/VertexBuffer11.h" |
| #include "libGLESv2/renderer/BufferStorage.h" |
| |
| #include "libGLESv2/Buffer.h" |
| #include "libGLESv2/renderer/d3d11/Renderer11.h" |
| #include "libGLESv2/VertexAttribute.h" |
| #include "libGLESv2/renderer/d3d11/formatutils11.h" |
| |
| namespace rx |
| { |
| |
| VertexBuffer11::VertexBuffer11(rx::Renderer11 *const renderer) : mRenderer(renderer) |
| { |
| mBuffer = NULL; |
| mBufferSize = 0; |
| mDynamicUsage = false; |
| } |
| |
| VertexBuffer11::~VertexBuffer11() |
| { |
| SafeRelease(mBuffer); |
| } |
| |
| bool VertexBuffer11::initialize(unsigned int size, bool dynamicUsage) |
| { |
| SafeRelease(mBuffer); |
| |
| updateSerial(); |
| |
| if (size > 0) |
| { |
| ID3D11Device* dxDevice = mRenderer->getDevice(); |
| |
| D3D11_BUFFER_DESC bufferDesc; |
| bufferDesc.ByteWidth = size; |
| bufferDesc.Usage = D3D11_USAGE_DYNAMIC; |
| bufferDesc.BindFlags = D3D11_BIND_VERTEX_BUFFER; |
| bufferDesc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE; |
| bufferDesc.MiscFlags = 0; |
| bufferDesc.StructureByteStride = 0; |
| |
| HRESULT result = dxDevice->CreateBuffer(&bufferDesc, NULL, &mBuffer); |
| if (FAILED(result)) |
| { |
| return false; |
| } |
| } |
| |
| mBufferSize = size; |
| mDynamicUsage = dynamicUsage; |
| return true; |
| } |
| |
| VertexBuffer11 *VertexBuffer11::makeVertexBuffer11(VertexBuffer *vetexBuffer) |
| { |
| ASSERT(HAS_DYNAMIC_TYPE(VertexBuffer11*, vetexBuffer)); |
| return static_cast<VertexBuffer11*>(vetexBuffer); |
| } |
| |
| bool VertexBuffer11::storeVertexAttributes(const gl::VertexAttribute &attrib, const gl::VertexAttribCurrentValueData ¤tValue, |
| GLint start, GLsizei count, GLsizei instances, unsigned int offset) |
| { |
| if (mBuffer) |
| { |
| gl::Buffer *buffer = attrib.mBoundBuffer.get(); |
| int inputStride = attrib.stride(); |
| ID3D11DeviceContext *dxContext = mRenderer->getDeviceContext(); |
| |
| D3D11_MAPPED_SUBRESOURCE mappedResource; |
| HRESULT result = dxContext->Map(mBuffer, 0, D3D11_MAP_WRITE_NO_OVERWRITE, 0, &mappedResource); |
| if (FAILED(result)) |
| { |
| ERR("Vertex buffer map failed with error 0x%08x", result); |
| return false; |
| } |
| |
| char* output = reinterpret_cast<char*>(mappedResource.pData) + offset; |
| |
| const char *input = NULL; |
| if (attrib.mArrayEnabled) |
| { |
| 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); |
| } |
| } |
| else |
| { |
| input = reinterpret_cast<const char*>(currentValue.FloatValues); |
| } |
| |
| if (instances == 0 || attrib.mDivisor == 0) |
| { |
| input += inputStride * start; |
| } |
| |
| gl::VertexFormat vertexFormat(attrib, currentValue.Type); |
| VertexCopyFunction conversionFunc = gl_d3d11::GetVertexCopyFunction(vertexFormat); |
| ASSERT(conversionFunc != NULL); |
| conversionFunc(input, inputStride, count, output); |
| |
| dxContext->Unmap(mBuffer, 0); |
| |
| return true; |
| } |
| else |
| { |
| ERR("Vertex buffer not initialized."); |
| return false; |
| } |
| } |
| |
| bool VertexBuffer11::getSpaceRequired(const gl::VertexAttribute &attrib, GLsizei count, |
| GLsizei instances, unsigned int *outSpaceRequired) const |
| { |
| unsigned int elementCount = 0; |
| if (attrib.mArrayEnabled) |
| { |
| if (instances == 0 || attrib.mDivisor == 0) |
| { |
| elementCount = count; |
| } |
| else |
| { |
| if (static_cast<unsigned int>(instances) < std::numeric_limits<unsigned int>::max() - (attrib.mDivisor - 1)) |
| { |
| // Round up |
| elementCount = rx::roundUp(static_cast<unsigned int>(instances), attrib.mDivisor); |
| } |
| else |
| { |
| elementCount = instances / attrib.mDivisor; |
| } |
| } |
| |
| gl::VertexFormat vertexFormat(attrib); |
| unsigned int elementSize = static_cast<unsigned int>(gl_d3d11::GetVertexElementSize(vertexFormat)); |
| 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; |
| } |
| } |
| |
| unsigned int VertexBuffer11::getBufferSize() const |
| { |
| return mBufferSize; |
| } |
| |
| bool VertexBuffer11::setBufferSize(unsigned int size) |
| { |
| if (size > mBufferSize) |
| { |
| return initialize(size, mDynamicUsage); |
| } |
| else |
| { |
| return true; |
| } |
| } |
| |
| bool VertexBuffer11::discard() |
| { |
| if (mBuffer) |
| { |
| ID3D11DeviceContext *dxContext = mRenderer->getDeviceContext(); |
| |
| D3D11_MAPPED_SUBRESOURCE mappedResource; |
| HRESULT result = dxContext->Map(mBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource); |
| if (FAILED(result)) |
| { |
| ERR("Vertex buffer map failed with error 0x%08x", result); |
| return false; |
| } |
| |
| dxContext->Unmap(mBuffer, 0); |
| |
| return true; |
| } |
| else |
| { |
| ERR("Vertex buffer not initialized."); |
| return false; |
| } |
| } |
| |
| ID3D11Buffer *VertexBuffer11::getBuffer() const |
| { |
| return mBuffer; |
| } |
| |
| } |