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//
// Copyright 2014 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.
//
// Buffer11.h: Defines the rx::Buffer11 class which implements rx::BufferImpl via rx::BufferD3D.
#ifndef LIBGLESV2_RENDERER_BUFFER11_H_
#define LIBGLESV2_RENDERER_BUFFER11_H_
#include "libGLESv2/renderer/d3d/BufferD3D.h"
#include "libGLESv2/renderer/d3d/MemoryBuffer.h"
#include "libGLESv2/angletypes.h"
namespace rx
{
class Renderer11;
enum BufferUsage
{
BUFFER_USAGE_STAGING,
BUFFER_USAGE_VERTEX_OR_TRANSFORM_FEEDBACK,
BUFFER_USAGE_INDEX,
BUFFER_USAGE_PIXEL_UNPACK,
BUFFER_USAGE_PIXEL_PACK,
BUFFER_USAGE_UNIFORM,
};
struct PackPixelsParams
{
PackPixelsParams();
PackPixelsParams(const gl::Rectangle &area, GLenum format, GLenum type, GLuint outputPitch,
const gl::PixelPackState &pack, ptrdiff_t offset);
gl::Rectangle area;
GLenum format;
GLenum type;
GLuint outputPitch;
gl::Buffer *packBuffer;
gl::PixelPackState pack;
ptrdiff_t offset;
};
typedef size_t DataRevision;
class Buffer11 : public BufferD3D
{
public:
Buffer11(rx::Renderer11 *renderer);
virtual ~Buffer11();
static Buffer11 *makeBuffer11(BufferImpl *buffer);
ID3D11Buffer *getBuffer(BufferUsage usage);
ID3D11ShaderResourceView *getSRV(DXGI_FORMAT srvFormat);
bool isMapped() const { return mMappedStorage != NULL; }
gl::Error packPixels(ID3D11Texture2D *srcTexure, UINT srcSubresource, const PackPixelsParams ¶ms);
// BufferD3D implementation
virtual size_t getSize() const { return mSize; }
virtual bool supportsDirectBinding() const;
virtual Renderer* getRenderer();
// BufferImpl implementation
virtual gl::Error setData(const void* data, size_t size, GLenum usage);
virtual void *getData();
virtual gl::Error setSubData(const void* data, size_t size, size_t offset);
virtual gl::Error copySubData(BufferImpl* source, GLintptr sourceOffset, GLintptr destOffset, GLsizeiptr size);
virtual gl::Error map(size_t offset, size_t length, GLbitfield access, GLvoid **mapPtr);
virtual gl::Error unmap();
virtual void markTransformFeedbackUsage();
private:
DISALLOW_COPY_AND_ASSIGN(Buffer11);
class BufferStorage11;
class NativeBuffer11;
class PackStorage11;
rx::Renderer11 *mRenderer;
size_t mSize;
BufferStorage11 *mMappedStorage;
std::map<BufferUsage, BufferStorage11*> mBufferStorages;
typedef std::pair<ID3D11Buffer *, ID3D11ShaderResourceView *> BufferSRVPair;
std::map<DXGI_FORMAT, BufferSRVPair> mBufferResourceViews;
MemoryBuffer mResolvedData;
DataRevision mResolvedDataRevision;
unsigned int mReadUsageCount;
void markBufferUsage();
NativeBuffer11 *getStagingBuffer();
PackStorage11 *getPackStorage();
BufferStorage11 *getBufferStorage(BufferUsage usage);
BufferStorage11 *getLatestBufferStorage() const;
};
}
#endif // LIBGLESV2_RENDERER_BUFFER11_H_
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