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// VertexDataManager.h: Defines the VertexDataManager, a class that 16d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens// runs the Buffer translation process. 17d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 18d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens#ifndef LIBGL_VERTEXDATAMANAGER_H_ 19d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens#define LIBGL_VERTEXDATAMANAGER_H_ 20d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 21d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens#include "Context.h" 22d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens#include "Device.hpp" 23d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 24d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens#define _GDI32_ 25d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens#include <windows.h> 26d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens#include <GL/GL.h> 27d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens#include <GL/glext.h> 28d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 29d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capensnamespace gl 30d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens{ 31d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 32d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capensstruct TranslatedAttribute 33d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens{ 34d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens sw::StreamType type; 35d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens int count; 36d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens bool normalized; 37d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 38d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens unsigned int offset; 39d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens unsigned int stride; // 0 means not to advance the read pointer at all 40d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 41d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens sw::Resource *vertexBuffer; 42d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens}; 43d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 44d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capensclass VertexBuffer 45d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens{ 46d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capenspublic: 47d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens VertexBuffer(unsigned int size); 48d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens virtual ~VertexBuffer(); 49d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 50d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens void unmap(); 51d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 52d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens sw::Resource *getResource() const; 53d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 54d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capensprotected: 55d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens sw::Resource *mVertexBuffer; 56d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens}; 57d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 58d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capensclass ConstantVertexBuffer : public VertexBuffer 59d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens{ 60d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capenspublic: 61d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens ConstantVertexBuffer(float x, float y, float z, float w); 62d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens ~ConstantVertexBuffer(); 63d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens}; 64d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 65d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capensclass StreamingVertexBuffer : public VertexBuffer 66d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens{ 67d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capenspublic: 68d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens StreamingVertexBuffer(unsigned int size); 69d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens ~StreamingVertexBuffer(); 70d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 71d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens void *map(const VertexAttribute &attribute, unsigned int requiredSpace, unsigned int *streamOffset); 72d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens void reserveRequiredSpace(); 73d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens void addRequiredSpace(unsigned int requiredSpace); 74d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 75d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capensprotected: 76d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens unsigned int mBufferSize; 77d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens unsigned int mWritePosition; 78d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens unsigned int mRequiredSpace; 79d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens}; 80d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 81d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capensclass VertexDataManager 82d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens{ 83d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capenspublic: 84d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens VertexDataManager(Context *context); 85d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens virtual ~VertexDataManager(); 86d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 87d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens void dirtyCurrentValue(int index) { mDirtyCurrentValue[index] = true; } 88d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 89d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens GLenum prepareVertexData(GLint start, GLsizei count, TranslatedAttribute *outAttribs); 90d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 91d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capensprivate: 92d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens unsigned int writeAttributeData(StreamingVertexBuffer *vertexBuffer, GLint start, GLsizei count, const VertexAttribute &attribute); 93d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 94d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens Context *const mContext; 95d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 96d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens StreamingVertexBuffer *mStreamingBuffer; 97d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 98d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens bool mDirtyCurrentValue[MAX_VERTEX_ATTRIBS]; 99d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens ConstantVertexBuffer *mCurrentValueBuffer[MAX_VERTEX_ATTRIBS]; 100d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens}; 101d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 102d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens} 103d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens 104d999309b36cb3dceadd38217b322f0e96a06b202Nicolas Capens#endif // LIBGL_VERTEXDATAMANAGER_H_ 105