The Tor Browser: gfx/angle/src/libGLESv2/renderer/VertexBuffer11.cpp@129ffea94266 (annotated)

gfx/angle/src/libGLESv2/renderer/VertexBuffer11.cpp@129ffea94266 (annotated)

gfx/angle/src/libGLESv2/renderer/VertexBuffer11.cpp

Sat, 03 Jan 2015 20:18:00 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Sat, 03 Jan 2015 20:18:00 +0100
branch: TOR_BUG_3246
changeset 7: 129ffea94266
permissions: -rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

 #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/VertexBuffer11.h"
 #include "libGLESv2/renderer/BufferStorage.h"
 #include "libGLESv2/Buffer.h"
 #include "libGLESv2/renderer/Renderer11.h"
 #include "libGLESv2/Context.h"
 namespace rx
 {
 VertexBuffer11::VertexBuffer11(rx::Renderer11 *const renderer) : mRenderer(renderer)
 {
     mBuffer = NULL;
     mBufferSize = 0;
     mDynamicUsage = false;
 }
 VertexBuffer11::~VertexBuffer11()
 {
     if (mBuffer)
     {
         mBuffer->Release();
         mBuffer = NULL;
     }
 }
 bool VertexBuffer11::initialize(unsigned int size, bool dynamicUsage)
 {
     if (mBuffer)
     {
         mBuffer->Release();
         mBuffer = NULL;
     }
     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, GLint start, GLsizei count,
                                            GLsizei instances, unsigned int offset)
 {
     if (mBuffer)
     {
         gl::Buffer *buffer = attrib.mBoundBuffer.get();
         int inputStride = attrib.stride();
         const VertexConverter &converter = getVertexConversion(attrib);
         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 (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;
         }
         converter.conversionFunc(input, inputStride, count, output);
         dxContext->Unmap(mBuffer, 0);
         return true;
     }
     else
     {
         ERR("Vertex buffer not initialized.");
         return false;
     }
 }
 bool VertexBuffer11::storeRawData(const void* data, unsigned int size, unsigned int offset)
 {
     if (mBuffer)
     {
         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* bufferData = static_cast<char*>(mappedResource.pData);
         memcpy(bufferData + offset, data, size);
         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 elementSize = getVertexConversion(attrib).outputElementSize;
     unsigned int elementCount = 0;
     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 = (static_cast<unsigned int>(instances) + (attrib.mDivisor - 1)) / attrib.mDivisor;
         }
         else
         {
             elementCount = instances / attrib.mDivisor;
         }
     }
     if (elementSize <= std::numeric_limits<unsigned int>::max() / elementCount)
     {
         if (outSpaceRequired)
         {
             *outSpaceRequired = elementSize * elementCount;
         }
         return true;
     }
     else
     {
         return false;
     }
 }
 bool VertexBuffer11::requiresConversion(const gl::VertexAttribute &attrib) const
 {
     return !getVertexConversion(attrib).identity;
 }
 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;
     }
 }
 unsigned int VertexBuffer11::getVertexSize(const gl::VertexAttribute &attrib) const
 {
     return getVertexConversion(attrib).outputElementSize;
 }
 DXGI_FORMAT VertexBuffer11::getDXGIFormat(const gl::VertexAttribute &attrib) const
 {
     return getVertexConversion(attrib).dxgiFormat;
 }
 ID3D11Buffer *VertexBuffer11::getBuffer() const
 {
     return mBuffer;
 }
 template <typename T, unsigned int componentCount, bool widen, bool normalized>
 static void copyVertexData(const void *input, unsigned int stride, unsigned int count, void *output)
 {
     unsigned int attribSize = sizeof(T) * componentCount;
     if (attribSize == stride && !widen)
     {
         memcpy(output, input, count * attribSize);
     }
     else
     {
         unsigned int outputStride = widen ? 4 : componentCount;
         T defaultVal = normalized ? std::numeric_limits<T>::max() : T(1);
         for (unsigned int i = 0; i < count; i++)
         {
             const T *offsetInput = reinterpret_cast<const T*>(reinterpret_cast<const char*>(input) + i * stride);
             T *offsetOutput = reinterpret_cast<T*>(output) + i * outputStride;
             for (unsigned int j = 0; j < componentCount; j++)
             {
                 offsetOutput[j] = offsetInput[j];
             }
             if (widen)
             {
                 offsetOutput[3] = defaultVal;
             }
         }
     }
 }
 template <unsigned int componentCount>
 static void copyFixedVertexData(const void* input, unsigned int stride, unsigned int count, void* output)
 {
     static const float divisor = 1.0f / (1 << 16);
     for (unsigned int i = 0; i < count; i++)
     {
         const GLfixed* offsetInput = reinterpret_cast<const GLfixed*>(reinterpret_cast<const char*>(input) + stride * i);
         float* offsetOutput = reinterpret_cast<float*>(output) + i * componentCount;
         for (unsigned int j = 0; j < componentCount; j++)
         {
             offsetOutput[j] = static_cast<float>(offsetInput[j]) * divisor;
         }
     }
 }
 template <typename T, unsigned int componentCount, bool normalized>
 static void copyToFloatVertexData(const void* input, unsigned int stride, unsigned int count, void* output)
 {
     typedef std::numeric_limits<T> NL;
     for (unsigned int i = 0; i < count; i++)
     {
         const T *offsetInput = reinterpret_cast<const T*>(reinterpret_cast<const char*>(input) + stride * i);
         float *offsetOutput = reinterpret_cast<float*>(output) + i * componentCount;
         for (unsigned int j = 0; j < componentCount; j++)
         {
             if (normalized)
             {
                 if (NL::is_signed)
                 {
                     const float divisor = 1.0f / (2 * static_cast<float>(NL::max()) + 1);
                     offsetOutput[j] = (2 * static_cast<float>(offsetInput[j]) + 1) * divisor;
                 }
                 else
                 {
                     offsetOutput[j] =  static_cast<float>(offsetInput[j]) / NL::max();
                 }
             }
             else
             {
                 offsetOutput[j] =  static_cast<float>(offsetInput[j]);
             }
         }
     }
 }
 const VertexBuffer11::VertexConverter VertexBuffer11::mPossibleTranslations[NUM_GL_VERTEX_ATTRIB_TYPES][2][4] =
 {
     { // GL_BYTE
         { // unnormalized
             { &copyToFloatVertexData<GLbyte, 1, false>, false, DXGI_FORMAT_R32_FLOAT, 4 },
             { &copyToFloatVertexData<GLbyte, 2, false>, false, DXGI_FORMAT_R32G32_FLOAT, 8 },
             { &copyToFloatVertexData<GLbyte, 3, false>, false, DXGI_FORMAT_R32G32B32_FLOAT, 12 },
             { &copyToFloatVertexData<GLbyte, 4, false>, false, DXGI_FORMAT_R32G32B32A32_FLOAT, 16 },
         },
         { // normalized
             { &copyVertexData<GLbyte, 1, false, true>, true, DXGI_FORMAT_R8_SNORM, 1 },
             { &copyVertexData<GLbyte, 2, false, true>, true, DXGI_FORMAT_R8G8_SNORM, 2 },
             { &copyVertexData<GLbyte, 3, true, true>, false, DXGI_FORMAT_R8G8B8A8_SNORM, 4 },
             { &copyVertexData<GLbyte, 4, false, true>, true, DXGI_FORMAT_R8G8B8A8_SNORM, 4 },
         },
     },
     { // GL_UNSIGNED_BYTE
         { // unnormalized
             { &copyToFloatVertexData<GLubyte, 1, false>, false, DXGI_FORMAT_R32_FLOAT, 4 },
             { &copyToFloatVertexData<GLubyte, 2, false>, false, DXGI_FORMAT_R32G32_FLOAT, 8 },
             { &copyToFloatVertexData<GLubyte, 3, false>, false, DXGI_FORMAT_R32G32B32_FLOAT, 12 },
             { &copyToFloatVertexData<GLubyte, 4, false>, false, DXGI_FORMAT_R32G32B32A32_FLOAT, 16 },
         },
         { // normalized
             { &copyVertexData<GLubyte, 1, false, true>, true, DXGI_FORMAT_R8_UNORM, 1 },
             { &copyVertexData<GLubyte, 2, false, true>, true, DXGI_FORMAT_R8G8_UNORM, 2 },
             { &copyVertexData<GLubyte, 3, true, true>, false, DXGI_FORMAT_R8G8B8A8_UNORM, 4 },
             { &copyVertexData<GLubyte, 4, false, true>, true, DXGI_FORMAT_R8G8B8A8_UNORM, 4 },
         },
     },
     { // GL_SHORT
         { // unnormalized
             { &copyToFloatVertexData<GLshort, 1, false>, false, DXGI_FORMAT_R32_FLOAT, 4 },
             { &copyToFloatVertexData<GLshort, 2, false>, false, DXGI_FORMAT_R32G32_FLOAT, 8 },
             { &copyToFloatVertexData<GLshort, 3, false>, false, DXGI_FORMAT_R32G32B32_FLOAT, 12 },
             { &copyToFloatVertexData<GLshort, 4, false>, false, DXGI_FORMAT_R32G32B32A32_FLOAT, 16 },
         },
         { // normalized
             { &copyVertexData<GLshort, 1, false, true>, true, DXGI_FORMAT_R16_SNORM, 2 },
             { &copyVertexData<GLshort, 2, false, true>, true, DXGI_FORMAT_R16G16_SNORM, 4 },
             { &copyVertexData<GLshort, 3, true, true>, false, DXGI_FORMAT_R16G16B16A16_SNORM, 8 },
             { &copyVertexData<GLshort, 4, false, true>, true, DXGI_FORMAT_R16G16B16A16_SNORM, 8 },
         },
     },
     { // GL_UNSIGNED_SHORT
         { // unnormalized
             { &copyToFloatVertexData<GLushort, 1, false>, false, DXGI_FORMAT_R32_FLOAT, 4 },
             { &copyToFloatVertexData<GLushort, 2, false>, false, DXGI_FORMAT_R32G32_FLOAT, 8 },
             { &copyToFloatVertexData<GLushort, 3, false>, false, DXGI_FORMAT_R32G32B32_FLOAT, 12 },
             { &copyToFloatVertexData<GLushort, 4, false>, false, DXGI_FORMAT_R32G32B32A32_FLOAT, 16 },
         },
         { // normalized
             { &copyVertexData<GLushort, 1, false, true>, true, DXGI_FORMAT_R16_UNORM, 2 },
             { &copyVertexData<GLushort, 2, false, true>, true, DXGI_FORMAT_R16G16_UNORM, 4 },
             { &copyVertexData<GLushort, 3, true, true>, false, DXGI_FORMAT_R16G16B16A16_UNORM, 8 },
             { &copyVertexData<GLushort, 4, false, true>, true, DXGI_FORMAT_R16G16B16A16_UNORM, 8 },
         },
     },
     { // GL_FIXED
         { // unnormalized
             { &copyFixedVertexData<1>, false, DXGI_FORMAT_R32_FLOAT, 4 },
             { &copyFixedVertexData<2>, false, DXGI_FORMAT_R32G32_FLOAT, 8 },
             { &copyFixedVertexData<3>, false, DXGI_FORMAT_R32G32B32_FLOAT, 12 },
             { &copyFixedVertexData<4>, false, DXGI_FORMAT_R32G32B32A32_FLOAT, 16 },
         },
         { // normalized
             { &copyFixedVertexData<1>, false, DXGI_FORMAT_R32_FLOAT, 4 },
             { &copyFixedVertexData<2>, false, DXGI_FORMAT_R32G32_FLOAT, 8 },
             { &copyFixedVertexData<3>, false, DXGI_FORMAT_R32G32B32_FLOAT, 12 },
             { &copyFixedVertexData<4>, false, DXGI_FORMAT_R32G32B32A32_FLOAT, 16 },
         },
     },
     { // GL_FLOAT
         { // unnormalized
             { &copyVertexData<GLfloat, 1, false, false>, true, DXGI_FORMAT_R32_FLOAT, 4 },
             { &copyVertexData<GLfloat, 2, false, false>, true, DXGI_FORMAT_R32G32_FLOAT, 8 },
             { &copyVertexData<GLfloat, 3, false, false>, true, DXGI_FORMAT_R32G32B32_FLOAT, 12 },
             { &copyVertexData<GLfloat, 4, false, false>, true, DXGI_FORMAT_R32G32B32A32_FLOAT, 16 },
         },
         { // normalized
             { &copyVertexData<GLfloat, 1, false, false>, true, DXGI_FORMAT_R32_FLOAT, 4 },
             { &copyVertexData<GLfloat, 2, false, false>, true, DXGI_FORMAT_R32G32_FLOAT, 8 },
             { &copyVertexData<GLfloat, 3, false, false>, true, DXGI_FORMAT_R32G32B32_FLOAT, 12 },
             { &copyVertexData<GLfloat, 4, false, false>, true, DXGI_FORMAT_R32G32B32A32_FLOAT, 16 },
         },
     },
 };
 const VertexBuffer11::VertexConverter &VertexBuffer11::getVertexConversion(const gl::VertexAttribute &attribute)
 {
     unsigned int typeIndex = 0;
     switch (attribute.mType)
     {
       case GL_BYTE:             typeIndex = 0; break;
       case GL_UNSIGNED_BYTE:    typeIndex = 1; break;
       case GL_SHORT:            typeIndex = 2; break;
       case GL_UNSIGNED_SHORT:   typeIndex = 3; break;
       case GL_FIXED:            typeIndex = 4; break;
       case GL_FLOAT:            typeIndex = 5; break;
       default:                  UNREACHABLE(); break;
     }
     return mPossibleTranslations[typeIndex][attribute.mNormalized ? 1 : 0][attribute.mSize - 1];
 }
 }

The Tor Browser / annotate

gfx/angle/src/libGLESv2/renderer/VertexBuffer11.cpp@129ffea94266 (annotated)

gfx/angle/src/libGLESv2/renderer/VertexBuffer11.cpp