1d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens// Copyright 2016 The SwiftShader Authors. All Rights Reserved. 2d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens// 3d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens// Licensed under the Apache License, Version 2.0 (the "License"); 4d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens// you may not use this file except in compliance with the License. 5d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens// You may obtain a copy of the License at 6d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens// 7d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens// http://www.apache.org/licenses/LICENSE-2.0 8d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens// 9d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens// Unless required by applicable law or agreed to in writing, software 10d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens// distributed under the License is distributed on an "AS IS" BASIS, 11d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens// See the License for the specific language governing permissions and 13d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens// limitations under the License. 14d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 15d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens// IndexDataManager.h: Defines the IndexDataManager, a class that 16d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens// runs the Buffer translation process for index buffers. 17d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 18d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens#ifndef LIBGLES_CM_INDEXDATAMANAGER_H_ 19d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens#define LIBGLES_CM_INDEXDATAMANAGER_H_ 20d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 21d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens#include "Context.h" 22d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 23d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens#include <GLES/gl.h> 24d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 25d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capensnamespace es1 26d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens{ 27d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 28d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capensstruct TranslatedIndexData 29d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens{ 30d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens unsigned int minIndex; 31d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens unsigned int maxIndex; 32d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens unsigned int indexOffset; 33d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 34d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens sw::Resource *indexBuffer; 35d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens}; 36d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 37d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capensclass StreamingIndexBuffer 38d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens{ 39d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capenspublic: 40d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens StreamingIndexBuffer(unsigned int initialSize); 41d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens virtual ~StreamingIndexBuffer(); 42d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 43d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens void *map(unsigned int requiredSpace, unsigned int *offset); 44d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens void unmap(); 45d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens void reserveSpace(unsigned int requiredSpace, GLenum type); 46d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 47d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens sw::Resource *getResource() const; 48d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 49d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capensprivate: 50d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens sw::Resource *mIndexBuffer; 51d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens unsigned int mBufferSize; 52d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens unsigned int mWritePosition; 53d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens}; 54d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 55d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capensclass IndexDataManager 56d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens{ 57d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capenspublic: 58d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens IndexDataManager(); 59d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens virtual ~IndexDataManager(); 60d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 61d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens GLenum prepareIndexData(GLenum type, GLsizei count, Buffer *arrayElementBuffer, const void *indices, TranslatedIndexData *translated); 62d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 63d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens static std::size_t typeSize(GLenum type); 64d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 65d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capensprivate: 66d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens StreamingIndexBuffer *mStreamingBuffer; 67d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens}; 68d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 69d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens} 70d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 71d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens#endif // LIBGLES_CM_INDEXDATAMANAGER_H_ 72