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//
// Copyright (c) 2002-2013 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.
//
// Buffer.h: Defines the gl::Buffer class, representing storage of vertex and/or
// index data. Implements GL buffer objects and related functionality.
// [OpenGL ES 2.0.24] section 2.9 page 21.
#ifndef LIBGLESV2_BUFFER_H_
#define LIBGLESV2_BUFFER_H_
#include "common/angleutils.h"
#include "common/RefCountObject.h"
#include "libGLESv2/renderer/IndexRangeCache.h"
namespace rx
{
class Renderer;
class BufferStorage;
class StaticIndexBufferInterface;
class StaticVertexBufferInterface;
};
namespace gl
{
class Buffer : public RefCountObject
{
public:
Buffer(rx::Renderer *renderer, GLuint id);
virtual ~Buffer();
void bufferData(const void *data, GLsizeiptr size, GLenum usage, GLenum target);
void bufferSubData(const void *data, GLsizeiptr size, GLintptr offset, GLenum target);
GLenum usage() const;
rx::BufferStorage *getStorage() const;
unsigned int size() const;
rx::StaticVertexBufferInterface *getStaticVertexBuffer();
rx::StaticIndexBufferInterface *getStaticIndexBuffer();
void invalidateStaticData();
void promoteStaticUsage(int dataSize);
rx::IndexRangeCache *getIndexRangeCache();
private:
DISALLOW_COPY_AND_ASSIGN(Buffer);
rx::Renderer *mRenderer;
GLenum mUsage;
rx::BufferStorage *mBufferStorage;
rx::IndexRangeCache mIndexRangeCache;
rx::StaticVertexBufferInterface *mStaticVertexBuffer;
rx::StaticIndexBufferInterface *mStaticIndexBuffer;
unsigned int mUnmodifiedDataUse;
};
}
#endif // LIBGLESV2_BUFFER_H_
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