1 files changed, 244 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/VertexBuffer11.cpp b/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/VertexBuffer11.cpp
new file mode 100644
index 0000000000..adc64cef5e
--- /dev/null
+++ b/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/VertexBuffer11.cpp
@@ -0,0 +1,244 @@
+//
+// 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 "libANGLE/renderer/d3d/d3d11/VertexBuffer11.h"
+#include "libANGLE/renderer/d3d/d3d11/Buffer11.h"
+#include "libANGLE/renderer/d3d/d3d11/Renderer11.h"
+#include "libANGLE/renderer/d3d/d3d11/formatutils11.h"
+#include "libANGLE/Buffer.h"
+#include "libANGLE/VertexAttribute.h"
+
+namespace rx
+{
+
+VertexBuffer11::VertexBuffer11(Renderer11 *const renderer) : mRenderer(renderer)
+{
+    mBuffer = NULL;
+    mBufferSize = 0;
+    mDynamicUsage = false;
+    mMappedResourceData = NULL;
+}
+
+VertexBuffer11::~VertexBuffer11()
+{
+    ASSERT(mMappedResourceData == NULL);
+    SafeRelease(mBuffer);
+}
+
+gl::Error 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 gl::Error(GL_OUT_OF_MEMORY, "Failed to allocate internal vertex buffer of size, %lu.", size);
+        }
+    }
+
+    mBufferSize = size;
+    mDynamicUsage = dynamicUsage;
+
+    return gl::Error(GL_NO_ERROR);
+}
+
+VertexBuffer11 *VertexBuffer11::makeVertexBuffer11(VertexBuffer *vetexBuffer)
+{
+    ASSERT(HAS_DYNAMIC_TYPE(VertexBuffer11*, vetexBuffer));
+    return static_cast<VertexBuffer11*>(vetexBuffer);
+}
+
+gl::Error VertexBuffer11::mapResource()
+{
+    if (mMappedResourceData == NULL)
+    {
+        ID3D11DeviceContext *dxContext = mRenderer->getDeviceContext();
+
+        D3D11_MAPPED_SUBRESOURCE mappedResource;
+
+        HRESULT result = dxContext->Map(mBuffer, 0, D3D11_MAP_WRITE_NO_OVERWRITE, 0, &mappedResource);
+        if (FAILED(result))
+        {
+            return gl::Error(GL_OUT_OF_MEMORY, "Failed to map internal vertex buffer, HRESULT: 0x%08x.", result);
+        }
+
+        mMappedResourceData = reinterpret_cast<uint8_t*>(mappedResource.pData);
+    }
+
+    return gl::Error(GL_NO_ERROR);
+}
+
+void VertexBuffer11::hintUnmapResource()
+{
+    if (mMappedResourceData != NULL)
+    {
+        ID3D11DeviceContext *dxContext = mRenderer->getDeviceContext();
+        dxContext->Unmap(mBuffer, 0);
+
+        mMappedResourceData = NULL;
+    }
+}
+
+gl::Error VertexBuffer11::storeVertexAttributes(const gl::VertexAttribute &attrib, const gl::VertexAttribCurrentValueData &currentValue,
+                                                GLint start, GLsizei count, GLsizei instances, unsigned int offset)
+{
+    if (!mBuffer)
+    {
+        return gl::Error(GL_OUT_OF_MEMORY, "Internal vertex buffer is not initialized.");
+    }
+
+    gl::Buffer *buffer = attrib.buffer.get();
+    int inputStride = ComputeVertexAttributeStride(attrib);
+
+    // This will map the resource if it isn't already mapped.
+    gl::Error error = mapResource();
+    if (error.isError())
+    {
+        return error;
+    }
+
+    uint8_t *output = mMappedResourceData + offset;
+
+    const uint8_t *input = NULL;
+    if (attrib.enabled)
+    {
+        if (buffer)
+        {
+            BufferD3D *storage = GetImplAs<BufferD3D>(buffer);
+            error = storage->getData(&input);
+            if (error.isError())
+            {
+                return error;
+            }
+            input += static_cast<int>(attrib.offset);
+        }
+        else
+        {
+            input = static_cast<const uint8_t*>(attrib.pointer);
+        }
+    }
+    else
+    {
+        input = reinterpret_cast<const uint8_t*>(currentValue.FloatValues);
+    }
+
+    if (instances == 0 || attrib.divisor == 0)
+    {
+        input += inputStride * start;
+    }
+
+    gl::VertexFormat vertexFormat(attrib, currentValue.Type);
+    const d3d11::VertexFormat &vertexFormatInfo = d3d11::GetVertexFormatInfo(vertexFormat, mRenderer->getFeatureLevel());
+    ASSERT(vertexFormatInfo.copyFunction != NULL);
+    vertexFormatInfo.copyFunction(input, inputStride, count, output);
+
+    return gl::Error(GL_NO_ERROR);
+}
+
+gl::Error VertexBuffer11::getSpaceRequired(const gl::VertexAttribute &attrib, GLsizei count,
+                                           GLsizei instances, unsigned int *outSpaceRequired) const
+{
+    unsigned int elementCount = 0;
+    if (attrib.enabled)
+    {
+        if (instances == 0 || attrib.divisor == 0)
+        {
+            elementCount = count;
+        }
+        else
+        {
+            // Round up to divisor, if possible
+            elementCount = UnsignedCeilDivide(static_cast<unsigned int>(instances), attrib.divisor);
+        }
+
+        gl::VertexFormat vertexFormat(attrib);
+        const d3d11::VertexFormat &vertexFormatInfo = d3d11::GetVertexFormatInfo(vertexFormat, mRenderer->getFeatureLevel());
+        const d3d11::DXGIFormat &dxgiFormatInfo = d3d11::GetDXGIFormatInfo(vertexFormatInfo.nativeFormat);
+        unsigned int elementSize = dxgiFormatInfo.pixelBytes;
+        if (elementSize <= std::numeric_limits<unsigned int>::max() / elementCount)
+        {
+            if (outSpaceRequired)
+            {
+                *outSpaceRequired = elementSize * elementCount;
+            }
+            return gl::Error(GL_NO_ERROR);
+        }
+        else
+        {
+            return gl::Error(GL_OUT_OF_MEMORY, "New vertex buffer size would result in an overflow.");
+        }
+    }
+    else
+    {
+        const unsigned int elementSize = 4;
+        if (outSpaceRequired)
+        {
+            *outSpaceRequired = elementSize * 4;
+        }
+        return gl::Error(GL_NO_ERROR);
+    }
+}
+
+unsigned int VertexBuffer11::getBufferSize() const
+{
+    return mBufferSize;
+}
+
+gl::Error VertexBuffer11::setBufferSize(unsigned int size)
+{
+    if (size > mBufferSize)
+    {
+        return initialize(size, mDynamicUsage);
+    }
+    else
+    {
+        return gl::Error(GL_NO_ERROR);
+    }
+}
+
+gl::Error VertexBuffer11::discard()
+{
+    if (!mBuffer)
+    {
+        return gl::Error(GL_OUT_OF_MEMORY, "Internal vertex buffer is not initialized.");
+    }
+
+    ID3D11DeviceContext *dxContext = mRenderer->getDeviceContext();
+
+    D3D11_MAPPED_SUBRESOURCE mappedResource;
+    HRESULT result = dxContext->Map(mBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource);
+    if (FAILED(result))
+    {
+        return gl::Error(GL_OUT_OF_MEMORY, "Failed to map internal buffer for discarding, HRESULT: 0x%08x", result);
+    }
+
+    dxContext->Unmap(mBuffer, 0);
+
+    return gl::Error(GL_NO_ERROR);
+}
+
+ID3D11Buffer *VertexBuffer11::getBuffer() const
+{
+    return mBuffer;
+}
+
+}