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: // VertexDataManager.h: Defines the VertexDataManager, a class that
michael@0: // runs the Buffer translation process.
michael@0: 
michael@0: #ifndef LIBGLESV2_RENDERER_VERTEXDATAMANAGER_H_
michael@0: #define LIBGLESV2_RENDERER_VERTEXDATAMANAGER_H_
michael@0: 
michael@0: #include "libGLESv2/Constants.h"
michael@0: #include "common/angleutils.h"
michael@0: 
michael@0: namespace gl
michael@0: {
michael@0: class VertexAttribute;
michael@0: class ProgramBinary;
michael@0: }
michael@0: 
michael@0: namespace rx
michael@0: {
michael@0: class BufferStorage;
michael@0: class StreamingVertexBufferInterface;
michael@0: class VertexBuffer;
michael@0: class Renderer;
michael@0: 
michael@0: struct TranslatedAttribute
michael@0: {
michael@0:     bool active;
michael@0: 
michael@0:     const gl::VertexAttribute *attribute;
michael@0:     unsigned int offset;
michael@0:     unsigned int stride;   // 0 means not to advance the read pointer at all
michael@0: 
michael@0:     VertexBuffer *vertexBuffer;
michael@0:     BufferStorage *storage;
michael@0:     unsigned int serial;
michael@0:     unsigned int divisor;
michael@0: };
michael@0: 
michael@0: class VertexDataManager
michael@0: {
michael@0:   public:
michael@0:     VertexDataManager(rx::Renderer *renderer);
michael@0:     virtual ~VertexDataManager();
michael@0: 
michael@0:     GLenum prepareVertexData(const gl::VertexAttribute attribs[], gl::ProgramBinary *programBinary, GLint start, GLsizei count, TranslatedAttribute *outAttribs, GLsizei instances);
michael@0: 
michael@0:   private:
michael@0:     DISALLOW_COPY_AND_ASSIGN(VertexDataManager);
michael@0: 
michael@0:     rx::Renderer *const mRenderer;
michael@0: 
michael@0:     StreamingVertexBufferInterface *mStreamingBuffer;
michael@0: 
michael@0:     float mCurrentValue[gl::MAX_VERTEX_ATTRIBS][4];
michael@0:     StreamingVertexBufferInterface *mCurrentValueBuffer[gl::MAX_VERTEX_ATTRIBS];
michael@0:     std::size_t mCurrentValueOffsets[gl::MAX_VERTEX_ATTRIBS];
michael@0: };
michael@0: 
michael@0: }
michael@0: 
michael@0: #endif   // LIBGLESV2_RENDERER_VERTEXDATAMANAGER_H_