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//
// Copyright (c) 2002-2010 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 <cstddef>
#include <vector>
#define GL_APICALL
#include <GLES2/gl2.h>
#include "common/angleutils.h"
#include "common/RefCountObject.h"
namespace gl
{
class StaticVertexBuffer;
class StaticIndexBuffer;
class Buffer : public RefCountObject
{
public:
explicit Buffer(GLuint id);
virtual ~Buffer();
void bufferData(const void *data, GLsizeiptr size, GLenum usage);
void bufferSubData(const void *data, GLsizeiptr size, GLintptr offset);
void *data() { return mContents; }
size_t size() const { return mSize; }
GLenum usage() const { return mUsage; }
StaticVertexBuffer *getStaticVertexBuffer();
StaticIndexBuffer *getStaticIndexBuffer();
void invalidateStaticData();
void promoteStaticUsage(int dataSize);
private:
DISALLOW_COPY_AND_ASSIGN(Buffer);
GLubyte *mContents;
GLsizeiptr mSize;
GLenum mUsage;
StaticVertexBuffer *mStaticVertexBuffer;
StaticIndexBuffer *mStaticIndexBuffer;
GLsizeiptr mUnmodifiedDataUse;
};
}
#endif // LIBGLESV2_BUFFER_H_
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