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//
// 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.
//
// BufferStorage11.h Defines the BufferStorage11 class.
#ifndef LIBGLESV2_RENDERER_BUFFERSTORAGE11_H_
#define LIBGLESV2_RENDERER_BUFFERSTORAGE11_H_
#include "libGLESv2/renderer/BufferStorage.h"
namespace rx
{
class Renderer;
class Renderer11;
class DirectBufferStorage11;
enum BufferUsage
{
BUFFER_USAGE_VERTEX,
BUFFER_USAGE_INDEX,
};
class BufferStorage11 : public BufferStorage
{
public:
explicit BufferStorage11(Renderer11 *renderer);
virtual ~BufferStorage11();
static BufferStorage11 *makeBufferStorage11(BufferStorage *bufferStorage);
virtual void *getData();
virtual void setData(const void* data, unsigned int size, unsigned int offset);
virtual void copyData(BufferStorage* sourceStorage, unsigned int size,
unsigned int sourceOffset, unsigned int destOffset);
virtual void clear();
virtual unsigned int getSize() const;
virtual bool supportsDirectBinding() const;
ID3D11Buffer *getBuffer(BufferUsage usage);
private:
Renderer11 *mRenderer;
ID3D11Buffer *mStagingBuffer;
unsigned int mStagingBufferSize;
std::map<BufferUsage, DirectBufferStorage11*> mDirectBuffers;
unsigned int mSize;
void *mResolvedData;
unsigned int mResolvedDataSize;
bool mResolvedDataValid;
unsigned int mReadUsageCount;
unsigned int mWriteUsageCount;
void markBufferUsage();
};
// Each instance of BufferStorageD3DBuffer11 is specialized for a class of D3D binding points
// - vertex buffers
// - index buffers
class DirectBufferStorage11
{
public:
DirectBufferStorage11(Renderer11 *renderer, BufferUsage usage);
~DirectBufferStorage11();
BufferUsage getUsage() const;
bool updateFromStagingBuffer(ID3D11Buffer *stagingBuffer, size_t size, size_t offset);
ID3D11Buffer *getD3DBuffer() { return mDirectBuffer; }
bool isDirty() const { return mDirty; }
void markDirty() { mDirty = true; }
private:
Renderer11 *mRenderer;
const BufferUsage mUsage;
ID3D11Buffer *mDirectBuffer;
size_t mBufferSize;
bool mDirty;
static void fillBufferDesc(D3D11_BUFFER_DESC* bufferDesc, Renderer *renderer, BufferUsage usage, unsigned int bufferSize);
};
}
#endif // LIBGLESV2_RENDERER_BUFFERSTORAGE11_H_
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