michael@0: //
michael@0: // Copyright (c) 2002-2013 The ANGLE Project Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: //
michael@0: 
michael@0: // Buffer.h: Defines the gl::Buffer class, representing storage of vertex and/or
michael@0: // index data. Implements GL buffer objects and related functionality.
michael@0: // [OpenGL ES 2.0.24] section 2.9 page 21.
michael@0: 
michael@0: #ifndef LIBGLESV2_BUFFER_H_
michael@0: #define LIBGLESV2_BUFFER_H_
michael@0: 
michael@0: #include "common/angleutils.h"
michael@0: #include "common/RefCountObject.h"
michael@0: #include "libGLESv2/renderer/IndexRangeCache.h"
michael@0: 
michael@0: namespace rx
michael@0: {
michael@0: class Renderer;
michael@0: class BufferStorage;
michael@0: class StaticIndexBufferInterface;
michael@0: class StaticVertexBufferInterface;
michael@0: };
michael@0: 
michael@0: namespace gl
michael@0: {
michael@0: 
michael@0: class Buffer : public RefCountObject
michael@0: {
michael@0:   public:
michael@0:     Buffer(rx::Renderer *renderer, GLuint id);
michael@0: 
michael@0:     virtual ~Buffer();
michael@0: 
michael@0:     void bufferData(const void *data, GLsizeiptr size, GLenum usage);
michael@0:     void bufferSubData(const void *data, GLsizeiptr size, GLintptr offset);
michael@0: 
michael@0:     GLenum usage() const;
michael@0: 
michael@0:     rx::BufferStorage *getStorage() const;
michael@0:     unsigned int size();
michael@0: 
michael@0:     rx::StaticVertexBufferInterface *getStaticVertexBuffer();
michael@0:     rx::StaticIndexBufferInterface *getStaticIndexBuffer();
michael@0:     void invalidateStaticData();
michael@0:     void promoteStaticUsage(int dataSize);
michael@0: 
michael@0:     rx::IndexRangeCache *getIndexRangeCache();
michael@0: 
michael@0:   private:
michael@0:     DISALLOW_COPY_AND_ASSIGN(Buffer);
michael@0: 
michael@0:     rx::Renderer *mRenderer;
michael@0:     GLenum mUsage;
michael@0: 
michael@0:     rx::BufferStorage *mBufferStorage;
michael@0: 
michael@0:     rx::IndexRangeCache mIndexRangeCache;
michael@0: 
michael@0:     rx::StaticVertexBufferInterface *mStaticVertexBuffer;
michael@0:     rx::StaticIndexBufferInterface *mStaticIndexBuffer;
michael@0:     unsigned int mUnmodifiedDataUse;
michael@0: };
michael@0: 
michael@0: }
michael@0: 
michael@0: #endif   // LIBGLESV2_BUFFER_H_