michael@0: //
michael@0: // Copyright (c) 2002-2012 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: // IndexDataManager.h: Defines the IndexDataManager, a class that
michael@0: // runs the Buffer translation process for index buffers.
michael@0: 
michael@0: #ifndef LIBGLESV2_INDEXDATAMANAGER_H_
michael@0: #define LIBGLESV2_INDEXDATAMANAGER_H_
michael@0: 
michael@0: #include "common/angleutils.h"
michael@0: 
michael@0: namespace
michael@0: {
michael@0:     enum { INITIAL_INDEX_BUFFER_SIZE = 4096 * sizeof(GLuint) };
michael@0: }
michael@0: 
michael@0: namespace gl
michael@0: {
michael@0: class Buffer;
michael@0: }
michael@0: 
michael@0: namespace rx
michael@0: {
michael@0: class StaticIndexBufferInterface;
michael@0: class StreamingIndexBufferInterface;
michael@0: class IndexBuffer;
michael@0: class BufferStorage;
michael@0: class Renderer;
michael@0: 
michael@0: struct TranslatedIndexData
michael@0: {
michael@0:     unsigned int minIndex;
michael@0:     unsigned int maxIndex;
michael@0:     unsigned int startIndex;
michael@0:     unsigned int startOffset;   // In bytes
michael@0: 
michael@0:     IndexBuffer *indexBuffer;
michael@0:     BufferStorage *storage;
michael@0:     unsigned int serial;
michael@0: };
michael@0: 
michael@0: class IndexDataManager
michael@0: {
michael@0:   public:
michael@0:     explicit IndexDataManager(Renderer *renderer);
michael@0:     virtual ~IndexDataManager();
michael@0: 
michael@0:     GLenum prepareIndexData(GLenum type, GLsizei count, gl::Buffer *arrayElementBuffer, const GLvoid *indices, TranslatedIndexData *translated);
michael@0:     StaticIndexBufferInterface *getCountingIndices(GLsizei count);
michael@0: 
michael@0:   private:
michael@0:     DISALLOW_COPY_AND_ASSIGN(IndexDataManager);
michael@0: 
michael@0:     Renderer *const mRenderer;
michael@0: 
michael@0:     StreamingIndexBufferInterface *mStreamingBufferShort;
michael@0:     StreamingIndexBufferInterface *mStreamingBufferInt;
michael@0:     StaticIndexBufferInterface *mCountingBuffer;
michael@0: };
michael@0: 
michael@0: }
michael@0: 
michael@0: #endif   // LIBGLESV2_INDEXDATAMANAGER_H_