MeshState.h revision 96a5c4c7bab6718524de7253da8309143ab48bef
196a5c4c7bab6718524de7253da8309143ab48befChris Craik/* 296a5c4c7bab6718524de7253da8309143ab48befChris Craik * Copyright (C) 2015 The Android Open Source Project 396a5c4c7bab6718524de7253da8309143ab48befChris Craik * 496a5c4c7bab6718524de7253da8309143ab48befChris Craik * Licensed under the Apache License, Version 2.0 (the "License"); 596a5c4c7bab6718524de7253da8309143ab48befChris Craik * you may not use this file except in compliance with the License. 696a5c4c7bab6718524de7253da8309143ab48befChris Craik * You may obtain a copy of the License at 796a5c4c7bab6718524de7253da8309143ab48befChris Craik * 896a5c4c7bab6718524de7253da8309143ab48befChris Craik * http://www.apache.org/licenses/LICENSE-2.0 996a5c4c7bab6718524de7253da8309143ab48befChris Craik * 1096a5c4c7bab6718524de7253da8309143ab48befChris Craik * Unless required by applicable law or agreed to in writing, software 1196a5c4c7bab6718524de7253da8309143ab48befChris Craik * distributed under the License is distributed on an "AS IS" BASIS, 1296a5c4c7bab6718524de7253da8309143ab48befChris Craik * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1396a5c4c7bab6718524de7253da8309143ab48befChris Craik * See the License for the specific language governing permissions and 1496a5c4c7bab6718524de7253da8309143ab48befChris Craik * limitations under the License. 1596a5c4c7bab6718524de7253da8309143ab48befChris Craik */ 1696a5c4c7bab6718524de7253da8309143ab48befChris Craik#ifndef RENDERSTATE_MESHSTATE_H 1796a5c4c7bab6718524de7253da8309143ab48befChris Craik#define RENDERSTATE_MESHSTATE_H 1896a5c4c7bab6718524de7253da8309143ab48befChris Craik 1996a5c4c7bab6718524de7253da8309143ab48befChris Craik#include "Vertex.h" 2096a5c4c7bab6718524de7253da8309143ab48befChris Craik 2196a5c4c7bab6718524de7253da8309143ab48befChris Craik#include <GLES2/gl2.h> 2296a5c4c7bab6718524de7253da8309143ab48befChris Craik#include <GLES2/gl2ext.h> 2396a5c4c7bab6718524de7253da8309143ab48befChris Craik#include <memory> 2496a5c4c7bab6718524de7253da8309143ab48befChris Craik 2596a5c4c7bab6718524de7253da8309143ab48befChris Craiknamespace android { 2696a5c4c7bab6718524de7253da8309143ab48befChris Craiknamespace uirenderer { 2796a5c4c7bab6718524de7253da8309143ab48befChris Craik 2896a5c4c7bab6718524de7253da8309143ab48befChris Craikclass Program; 2996a5c4c7bab6718524de7253da8309143ab48befChris Craik 3096a5c4c7bab6718524de7253da8309143ab48befChris Craik// Maximum number of quads that pre-allocated meshes can draw 3196a5c4c7bab6718524de7253da8309143ab48befChris Craikconst uint32_t kMaxNumberOfQuads = 2048; 3296a5c4c7bab6718524de7253da8309143ab48befChris Craik 3396a5c4c7bab6718524de7253da8309143ab48befChris Craik// This array is never used directly but used as a memcpy source in the 3496a5c4c7bab6718524de7253da8309143ab48befChris Craik// OpenGLRenderer constructor 3596a5c4c7bab6718524de7253da8309143ab48befChris Craikconst TextureVertex kMeshVertices[] = { 3696a5c4c7bab6718524de7253da8309143ab48befChris Craik { 0, 0, 0, 0 }, 3796a5c4c7bab6718524de7253da8309143ab48befChris Craik { 1, 0, 1, 0 }, 3896a5c4c7bab6718524de7253da8309143ab48befChris Craik { 0, 1, 0, 1 }, 3996a5c4c7bab6718524de7253da8309143ab48befChris Craik { 1, 1, 1, 1 }, 4096a5c4c7bab6718524de7253da8309143ab48befChris Craik}; 4196a5c4c7bab6718524de7253da8309143ab48befChris Craik 4296a5c4c7bab6718524de7253da8309143ab48befChris Craikconst GLsizei kVertexStride = sizeof(Vertex); 4396a5c4c7bab6718524de7253da8309143ab48befChris Craikconst GLsizei kAlphaVertexStride = sizeof(AlphaVertex); 4496a5c4c7bab6718524de7253da8309143ab48befChris Craikconst GLsizei kTextureVertexStride = sizeof(TextureVertex); 4596a5c4c7bab6718524de7253da8309143ab48befChris Craik 4696a5c4c7bab6718524de7253da8309143ab48befChris Craikconst GLsizei kMeshTextureOffset = 2 * sizeof(float); 4796a5c4c7bab6718524de7253da8309143ab48befChris Craikconst GLsizei kVertexAlphaOffset = 2 * sizeof(float); 4896a5c4c7bab6718524de7253da8309143ab48befChris Craikconst GLsizei kVertexAAWidthOffset = 2 * sizeof(float); 4996a5c4c7bab6718524de7253da8309143ab48befChris Craikconst GLsizei kVertexAALengthOffset = 3 * sizeof(float); 5096a5c4c7bab6718524de7253da8309143ab48befChris Craikconst GLsizei kMeshCount = 4; 5196a5c4c7bab6718524de7253da8309143ab48befChris Craik 5296a5c4c7bab6718524de7253da8309143ab48befChris Craikclass MeshState { 5396a5c4c7bab6718524de7253da8309143ab48befChris Craikprivate: 5496a5c4c7bab6718524de7253da8309143ab48befChris Craik friend class RenderState; 5596a5c4c7bab6718524de7253da8309143ab48befChris Craik 5696a5c4c7bab6718524de7253da8309143ab48befChris Craikpublic: 5796a5c4c7bab6718524de7253da8309143ab48befChris Craik ~MeshState(); 5896a5c4c7bab6718524de7253da8309143ab48befChris Craik /////////////////////////////////////////////////////////////////////////////// 5996a5c4c7bab6718524de7253da8309143ab48befChris Craik // Buffer objects 6096a5c4c7bab6718524de7253da8309143ab48befChris Craik /////////////////////////////////////////////////////////////////////////////// 6196a5c4c7bab6718524de7253da8309143ab48befChris Craik /** 6296a5c4c7bab6718524de7253da8309143ab48befChris Craik * Binds the VBO used to render simple textured quads. 6396a5c4c7bab6718524de7253da8309143ab48befChris Craik */ 6496a5c4c7bab6718524de7253da8309143ab48befChris Craik bool bindMeshBuffer(); 6596a5c4c7bab6718524de7253da8309143ab48befChris Craik 6696a5c4c7bab6718524de7253da8309143ab48befChris Craik /** 6796a5c4c7bab6718524de7253da8309143ab48befChris Craik * Binds the specified VBO if needed. If buffer == 0, binds default simple textured quad. 6896a5c4c7bab6718524de7253da8309143ab48befChris Craik */ 6996a5c4c7bab6718524de7253da8309143ab48befChris Craik bool bindMeshBuffer(GLuint buffer); 7096a5c4c7bab6718524de7253da8309143ab48befChris Craik 7196a5c4c7bab6718524de7253da8309143ab48befChris Craik /** 7296a5c4c7bab6718524de7253da8309143ab48befChris Craik * Unbinds the VBO used to render simple textured quads. 7396a5c4c7bab6718524de7253da8309143ab48befChris Craik */ 7496a5c4c7bab6718524de7253da8309143ab48befChris Craik bool unbindMeshBuffer(); 7596a5c4c7bab6718524de7253da8309143ab48befChris Craik 7696a5c4c7bab6718524de7253da8309143ab48befChris Craik /////////////////////////////////////////////////////////////////////////////// 7796a5c4c7bab6718524de7253da8309143ab48befChris Craik // Vertices 7896a5c4c7bab6718524de7253da8309143ab48befChris Craik /////////////////////////////////////////////////////////////////////////////// 7996a5c4c7bab6718524de7253da8309143ab48befChris Craik /** 8096a5c4c7bab6718524de7253da8309143ab48befChris Craik * Binds an attrib to the specified float vertex pointer. 8196a5c4c7bab6718524de7253da8309143ab48befChris Craik * Assumes a stride of gTextureVertexStride and a size of 2. 8296a5c4c7bab6718524de7253da8309143ab48befChris Craik */ 8396a5c4c7bab6718524de7253da8309143ab48befChris Craik void bindPositionVertexPointer(const Program* currentProgram, bool force, 8496a5c4c7bab6718524de7253da8309143ab48befChris Craik const GLvoid* vertices, GLsizei stride = kTextureVertexStride); 8596a5c4c7bab6718524de7253da8309143ab48befChris Craik 8696a5c4c7bab6718524de7253da8309143ab48befChris Craik /** 8796a5c4c7bab6718524de7253da8309143ab48befChris Craik * Binds an attrib to the specified float vertex pointer. 8896a5c4c7bab6718524de7253da8309143ab48befChris Craik * Assumes a stride of gTextureVertexStride and a size of 2. 8996a5c4c7bab6718524de7253da8309143ab48befChris Craik */ 9096a5c4c7bab6718524de7253da8309143ab48befChris Craik void bindTexCoordsVertexPointer(const Program* currentProgram, bool force, 9196a5c4c7bab6718524de7253da8309143ab48befChris Craik const GLvoid* vertices, GLsizei stride = kTextureVertexStride); 9296a5c4c7bab6718524de7253da8309143ab48befChris Craik 9396a5c4c7bab6718524de7253da8309143ab48befChris Craik /** 9496a5c4c7bab6718524de7253da8309143ab48befChris Craik * Resets the vertex pointers. 9596a5c4c7bab6718524de7253da8309143ab48befChris Craik */ 9696a5c4c7bab6718524de7253da8309143ab48befChris Craik void resetVertexPointers(); 9796a5c4c7bab6718524de7253da8309143ab48befChris Craik void resetTexCoordsVertexPointer(); 9896a5c4c7bab6718524de7253da8309143ab48befChris Craik 9996a5c4c7bab6718524de7253da8309143ab48befChris Craik void enableTexCoordsVertexArray(); 10096a5c4c7bab6718524de7253da8309143ab48befChris Craik void disableTexCoordsVertexArray(); 10196a5c4c7bab6718524de7253da8309143ab48befChris Craik 10296a5c4c7bab6718524de7253da8309143ab48befChris Craik /////////////////////////////////////////////////////////////////////////////// 10396a5c4c7bab6718524de7253da8309143ab48befChris Craik // Indices 10496a5c4c7bab6718524de7253da8309143ab48befChris Craik /////////////////////////////////////////////////////////////////////////////// 10596a5c4c7bab6718524de7253da8309143ab48befChris Craik /** 10696a5c4c7bab6718524de7253da8309143ab48befChris Craik * Binds a global indices buffer that can draw up to 10796a5c4c7bab6718524de7253da8309143ab48befChris Craik * gMaxNumberOfQuads quads. 10896a5c4c7bab6718524de7253da8309143ab48befChris Craik */ 10996a5c4c7bab6718524de7253da8309143ab48befChris Craik bool bindQuadIndicesBuffer(); 11096a5c4c7bab6718524de7253da8309143ab48befChris Craik bool bindShadowIndicesBuffer(); 11196a5c4c7bab6718524de7253da8309143ab48befChris Craik bool unbindIndicesBuffer(); 11296a5c4c7bab6718524de7253da8309143ab48befChris Craik 11396a5c4c7bab6718524de7253da8309143ab48befChris Craikprivate: 11496a5c4c7bab6718524de7253da8309143ab48befChris Craik MeshState(); 11596a5c4c7bab6718524de7253da8309143ab48befChris Craik bool bindIndicesBufferInternal(const GLuint buffer); 11696a5c4c7bab6718524de7253da8309143ab48befChris Craik 11796a5c4c7bab6718524de7253da8309143ab48befChris Craik // VBO to draw with 11896a5c4c7bab6718524de7253da8309143ab48befChris Craik GLuint meshBuffer; 11996a5c4c7bab6718524de7253da8309143ab48befChris Craik 12096a5c4c7bab6718524de7253da8309143ab48befChris Craik GLuint mCurrentBuffer; 12196a5c4c7bab6718524de7253da8309143ab48befChris Craik GLuint mCurrentIndicesBuffer; 12296a5c4c7bab6718524de7253da8309143ab48befChris Craik GLuint mCurrentPixelBuffer; 12396a5c4c7bab6718524de7253da8309143ab48befChris Craik 12496a5c4c7bab6718524de7253da8309143ab48befChris Craik const void* mCurrentPositionPointer; 12596a5c4c7bab6718524de7253da8309143ab48befChris Craik GLsizei mCurrentPositionStride; 12696a5c4c7bab6718524de7253da8309143ab48befChris Craik const void* mCurrentTexCoordsPointer; 12796a5c4c7bab6718524de7253da8309143ab48befChris Craik GLsizei mCurrentTexCoordsStride; 12896a5c4c7bab6718524de7253da8309143ab48befChris Craik 12996a5c4c7bab6718524de7253da8309143ab48befChris Craik bool mTexCoordsArrayEnabled; 13096a5c4c7bab6718524de7253da8309143ab48befChris Craik 13196a5c4c7bab6718524de7253da8309143ab48befChris Craik // Global index buffer 13296a5c4c7bab6718524de7253da8309143ab48befChris Craik GLuint mQuadListIndices; 13396a5c4c7bab6718524de7253da8309143ab48befChris Craik GLuint mShadowStripsIndices; 13496a5c4c7bab6718524de7253da8309143ab48befChris Craik}; 13596a5c4c7bab6718524de7253da8309143ab48befChris Craik 13696a5c4c7bab6718524de7253da8309143ab48befChris Craik} /* namespace uirenderer */ 13796a5c4c7bab6718524de7253da8309143ab48befChris Craik} /* namespace android */ 13896a5c4c7bab6718524de7253da8309143ab48befChris Craik 13996a5c4c7bab6718524de7253da8309143ab48befChris Craik#endif // RENDERSTATE_MESHSTATE_H 140