1 /* 2 ----------------------------------------------------------------------------- 3 This source file is part of OGRE 4 (Object-oriented Graphics Rendering Engine) 5 For the latest info, see http://www.ogre3d.org/ 6 7 Copyright (c) 2000-2013 Torus Knot Software Ltd 8 9 Permission is hereby granted, free of charge, to any person obtaining a copy 10 of this software and associated documentation files (the "Software"), to deal 11 in the Software without restriction, including without limitation the rights 12 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 13 copies of the Software, and to permit persons to whom the Software is 14 furnished to do so, subject to the following conditions: 15 16 The above copyright notice and this permission notice shall be included in 17 all copies or substantial portions of the Software. 18 19 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 20 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 21 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 22 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 23 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 24 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 25 THE SOFTWARE. 26 ----------------------------------------------------------------------------- 27 */ 28 29 #include "OgreGLSLProgramPipelineManager.h" 30 #include "OgreGLSLGpuProgram.h" 31 #include "OgreGLSLProgram.h" 32 33 namespace Ogre 34 { 35 //----------------------------------------------------------------------- 36 template<> GLSLProgramPipelineManager* Singleton<GLSLProgramPipelineManager>::msSingleton = 0; 37 38 //----------------------------------------------------------------------- getSingletonPtr(void)39 GLSLProgramPipelineManager* GLSLProgramPipelineManager::getSingletonPtr(void) 40 { 41 return msSingleton; 42 } 43 44 //----------------------------------------------------------------------- getSingleton(void)45 GLSLProgramPipelineManager& GLSLProgramPipelineManager::getSingleton(void) 46 { 47 assert( msSingleton ); return ( *msSingleton ); 48 } 49 GLSLProgramPipelineManager(void)50 GLSLProgramPipelineManager::GLSLProgramPipelineManager(void) : 51 GLSLProgramManagerCommon(), mActiveProgramPipeline(NULL) { } 52 ~GLSLProgramPipelineManager(void)53 GLSLProgramPipelineManager::~GLSLProgramPipelineManager(void) 54 { 55 // Iterate through map container and delete program pipelines 56 for (ProgramPipelineIterator currentProgram = mProgramPipelines.begin(); 57 currentProgram != mProgramPipelines.end(); ++currentProgram) 58 { 59 delete currentProgram->second; 60 } 61 } 62 63 //----------------------------------------------------------------------- setActiveFragmentLinkProgram(GLSLGpuProgram * fragmentGpuProgram)64 void GLSLProgramPipelineManager::setActiveFragmentLinkProgram(GLSLGpuProgram* fragmentGpuProgram) 65 { 66 if (fragmentGpuProgram != mActiveFragmentGpuProgram) 67 { 68 mActiveFragmentGpuProgram = fragmentGpuProgram; 69 // ActiveProgramPipeline is no longer valid 70 mActiveProgramPipeline = NULL; 71 } 72 } 73 74 //----------------------------------------------------------------------- setActiveVertexLinkProgram(GLSLGpuProgram * vertexGpuProgram)75 void GLSLProgramPipelineManager::setActiveVertexLinkProgram(GLSLGpuProgram* vertexGpuProgram) 76 { 77 if (vertexGpuProgram != mActiveVertexGpuProgram) 78 { 79 mActiveVertexGpuProgram = vertexGpuProgram; 80 // ActiveProgramPipeline is no longer valid 81 mActiveProgramPipeline = NULL; 82 } 83 } 84 setActiveGeometryLinkProgram(GLSLGpuProgram * geometryGpuProgram)85 void GLSLProgramPipelineManager::setActiveGeometryLinkProgram(GLSLGpuProgram* geometryGpuProgram) 86 { 87 if (geometryGpuProgram != mActiveGeometryGpuProgram) 88 { 89 mActiveGeometryGpuProgram = geometryGpuProgram; 90 // ActiveProgramPipeline is no longer valid 91 mActiveProgramPipeline = NULL; 92 } 93 } 94 setActiveTessDomainLinkProgram(GLSLGpuProgram * domainGpuProgram)95 void GLSLProgramPipelineManager::setActiveTessDomainLinkProgram(GLSLGpuProgram* domainGpuProgram) 96 { 97 if (domainGpuProgram != mActiveDomainGpuProgram) 98 { 99 mActiveDomainGpuProgram = domainGpuProgram; 100 // ActiveProgramPipeline is no longer valid 101 mActiveProgramPipeline = NULL; 102 } 103 } 104 setActiveTessHullLinkProgram(GLSLGpuProgram * hullGpuProgram)105 void GLSLProgramPipelineManager::setActiveTessHullLinkProgram(GLSLGpuProgram* hullGpuProgram) 106 { 107 if (hullGpuProgram != mActiveHullGpuProgram) 108 { 109 mActiveHullGpuProgram = hullGpuProgram; 110 // ActiveProgramPipeline is no longer valid 111 mActiveProgramPipeline = NULL; 112 } 113 } 114 setActiveComputeLinkProgram(GLSLGpuProgram * computeGpuProgram)115 void GLSLProgramPipelineManager::setActiveComputeLinkProgram(GLSLGpuProgram* computeGpuProgram) 116 { 117 if (computeGpuProgram != mActiveComputeGpuProgram) 118 { 119 mActiveComputeGpuProgram = computeGpuProgram; 120 // ActiveProgramPipeline is no longer valid 121 mActiveProgramPipeline = NULL; 122 } 123 } 124 125 //----------------------------------------------------------------------- getActiveProgramPipeline(void)126 GLSLProgramPipeline* GLSLProgramPipelineManager::getActiveProgramPipeline(void) 127 { 128 // If there is an active link program then return it 129 if (mActiveProgramPipeline) 130 return mActiveProgramPipeline; 131 132 // No active link program so find one or make a new one 133 // Is there an active key? 134 uint32 activeKey = 0; 135 GLuint progID = 0; 136 if (mActiveVertexGpuProgram) 137 { 138 progID = mActiveVertexGpuProgram->getProgramID(); 139 activeKey = FastHash((const char *)(&progID), sizeof(GLuint), activeKey); 140 } 141 if (mActiveFragmentGpuProgram) 142 { 143 progID = mActiveFragmentGpuProgram->getProgramID(); 144 activeKey = FastHash((const char *)(&progID), sizeof(GLuint), activeKey); 145 } 146 if (mActiveGeometryGpuProgram) 147 { 148 progID = mActiveGeometryGpuProgram->getProgramID(); 149 activeKey = FastHash((const char *)(&progID), sizeof(GLuint), activeKey); 150 } 151 if (mActiveDomainGpuProgram) 152 { 153 progID = mActiveDomainGpuProgram->getProgramID(); 154 activeKey = FastHash((const char *)(&progID), sizeof(GLuint), activeKey); 155 } 156 if (mActiveHullGpuProgram) 157 { 158 progID = mActiveHullGpuProgram->getProgramID(); 159 activeKey = FastHash((const char *)(&progID), sizeof(GLuint), activeKey); 160 } 161 if (mActiveComputeGpuProgram) 162 { 163 progID = mActiveComputeGpuProgram->getProgramID(); 164 activeKey = FastHash((const char *)(&progID), sizeof(GLuint), activeKey); 165 } 166 167 // Only return a program pipeline object if a vertex or fragment stage exist 168 if (activeKey > 0) 169 { 170 // Find the key in the hash map 171 ProgramPipelineIterator programFound = mProgramPipelines.find(activeKey); 172 // Program object not found for key so need to create it 173 if (programFound == mProgramPipelines.end()) 174 { 175 mActiveProgramPipeline = new GLSLProgramPipeline(mActiveVertexGpuProgram, mActiveGeometryGpuProgram, 176 mActiveFragmentGpuProgram, mActiveHullGpuProgram, 177 mActiveDomainGpuProgram, mActiveComputeGpuProgram); 178 mProgramPipelines[activeKey] = mActiveProgramPipeline; 179 } 180 else 181 { 182 // Found a link program in map container so make it active 183 mActiveProgramPipeline = programFound->second; 184 } 185 } 186 // Make the program object active 187 if (mActiveProgramPipeline) 188 mActiveProgramPipeline->activate(); 189 190 return mActiveProgramPipeline; 191 } 192 193 } 194