[5] | 1 | /* |
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| 2 | ----------------------------------------------------------------------------- |
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| 3 | This source file is part of OGRE |
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| 4 | (Object-oriented Graphics Rendering Engine) |
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| 5 | For the latest info, see http://www.ogre3d.org/ |
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| 6 | |
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| 7 | Copyright (c) 2000-2006 Torus Knot Software Ltd |
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| 8 | Also see acknowledgements in Readme.html |
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| 9 | |
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| 10 | This program is free software; you can redistribute it and/or modify it under |
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| 11 | the terms of the GNU Lesser General Public License as published by the Free Software |
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| 12 | Foundation; either version 2 of the License, or (at your option) any later |
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| 13 | version. |
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| 14 | |
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| 15 | This program is distributed in the hope that it will be useful, but WITHOUT |
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| 16 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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| 17 | FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. |
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| 18 | |
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| 19 | You should have received a copy of the GNU Lesser General Public License along with |
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| 20 | this program; if not, write to the Free Software Foundation, Inc., 59 Temple |
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| 21 | Place - Suite 330, Boston, MA 02111-1307, USA, or go to |
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| 22 | http://www.gnu.org/copyleft/lesser.txt. |
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| 23 | |
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| 24 | You may alternatively use this source under the terms of a specific version of |
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| 25 | the OGRE Unrestricted License provided you have obtained such a license from |
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| 26 | Torus Knot Software Ltd. |
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| 27 | ----------------------------------------------------------------------------- |
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| 28 | */ |
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| 29 | |
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| 30 | #include "OgreGLSLLinkProgramManager.h" |
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| 31 | #include "OgreGLSLGpuProgram.h" |
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| 32 | #include "OgreGLSLProgram.h" |
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| 33 | #include "OgreStringConverter.h" |
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| 34 | #include "OgreLogManager.h" |
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| 35 | |
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| 36 | namespace Ogre { |
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| 37 | |
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| 38 | //----------------------------------------------------------------------- |
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| 39 | template<> GLSLLinkProgramManager* Singleton<GLSLLinkProgramManager>::ms_Singleton = 0; |
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| 40 | |
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| 41 | //----------------------------------------------------------------------- |
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| 42 | GLSLLinkProgramManager* GLSLLinkProgramManager::getSingletonPtr(void) |
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| 43 | { |
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| 44 | return ms_Singleton; |
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| 45 | } |
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| 46 | |
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| 47 | //----------------------------------------------------------------------- |
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| 48 | GLSLLinkProgramManager& GLSLLinkProgramManager::getSingleton(void) |
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| 49 | { |
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| 50 | assert( ms_Singleton ); return ( *ms_Singleton ); |
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| 51 | } |
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| 52 | |
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| 53 | //----------------------------------------------------------------------- |
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| 54 | GLSLLinkProgramManager::GLSLLinkProgramManager(void) : mActiveVertexGpuProgram(NULL), |
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| 55 | mActiveFragmentGpuProgram(NULL), mActiveLinkProgram(NULL) |
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| 56 | { |
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| 57 | // Fill in the relationship between type names and enums |
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| 58 | mTypeEnumMap.insert(StringToEnumMap::value_type("float", GL_FLOAT)); |
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| 59 | mTypeEnumMap.insert(StringToEnumMap::value_type("vec2", GL_FLOAT_VEC2)); |
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| 60 | mTypeEnumMap.insert(StringToEnumMap::value_type("vec3", GL_FLOAT_VEC3)); |
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| 61 | mTypeEnumMap.insert(StringToEnumMap::value_type("vec4", GL_FLOAT_VEC4)); |
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| 62 | mTypeEnumMap.insert(StringToEnumMap::value_type("sampler1D", GL_SAMPLER_1D)); |
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| 63 | mTypeEnumMap.insert(StringToEnumMap::value_type("sampler2D", GL_SAMPLER_2D)); |
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| 64 | mTypeEnumMap.insert(StringToEnumMap::value_type("sampler3D", GL_SAMPLER_3D)); |
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| 65 | mTypeEnumMap.insert(StringToEnumMap::value_type("samplerCube", GL_SAMPLER_CUBE)); |
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| 66 | mTypeEnumMap.insert(StringToEnumMap::value_type("sampler1DShadow", GL_SAMPLER_1D_SHADOW)); |
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| 67 | mTypeEnumMap.insert(StringToEnumMap::value_type("sampler2DShadow", GL_SAMPLER_2D_SHADOW)); |
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| 68 | mTypeEnumMap.insert(StringToEnumMap::value_type("int", GL_INT)); |
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| 69 | mTypeEnumMap.insert(StringToEnumMap::value_type("ivec2", GL_INT_VEC2)); |
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| 70 | mTypeEnumMap.insert(StringToEnumMap::value_type("ivec3", GL_INT_VEC3)); |
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| 71 | mTypeEnumMap.insert(StringToEnumMap::value_type("ivec4", GL_INT_VEC4)); |
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| 72 | mTypeEnumMap.insert(StringToEnumMap::value_type("mat2", GL_FLOAT_MAT2)); |
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| 73 | mTypeEnumMap.insert(StringToEnumMap::value_type("mat3", GL_FLOAT_MAT3)); |
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| 74 | mTypeEnumMap.insert(StringToEnumMap::value_type("mat4", GL_FLOAT_MAT4)); |
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| 75 | // GL 2.1 |
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| 76 | mTypeEnumMap.insert(StringToEnumMap::value_type("mat2x2", GL_FLOAT_MAT2)); |
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| 77 | mTypeEnumMap.insert(StringToEnumMap::value_type("mat3x3", GL_FLOAT_MAT3)); |
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| 78 | mTypeEnumMap.insert(StringToEnumMap::value_type("mat4x4", GL_FLOAT_MAT4)); |
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| 79 | mTypeEnumMap.insert(StringToEnumMap::value_type("mat2x3", GL_FLOAT_MAT2x3)); |
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| 80 | mTypeEnumMap.insert(StringToEnumMap::value_type("mat3x2", GL_FLOAT_MAT3x2)); |
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| 81 | mTypeEnumMap.insert(StringToEnumMap::value_type("mat3x4", GL_FLOAT_MAT3x4)); |
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| 82 | mTypeEnumMap.insert(StringToEnumMap::value_type("mat4x3", GL_FLOAT_MAT4x3)); |
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| 83 | mTypeEnumMap.insert(StringToEnumMap::value_type("mat2x4", GL_FLOAT_MAT2x4)); |
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| 84 | mTypeEnumMap.insert(StringToEnumMap::value_type("mat4x2", GL_FLOAT_MAT4x2)); |
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| 85 | |
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| 86 | } |
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| 87 | |
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| 88 | //----------------------------------------------------------------------- |
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| 89 | GLSLLinkProgramManager::~GLSLLinkProgramManager(void) |
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| 90 | { |
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| 91 | // iterate through map container and delete link programs |
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| 92 | for (LinkProgramIterator currentProgram = LinkPrograms.begin(); |
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| 93 | currentProgram != LinkPrograms.end(); ++currentProgram) |
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| 94 | { |
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| 95 | delete currentProgram->second; |
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| 96 | } |
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| 97 | |
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| 98 | } |
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| 99 | |
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| 100 | //----------------------------------------------------------------------- |
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| 101 | GLSLLinkProgram* GLSLLinkProgramManager::getActiveLinkProgram(void) |
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| 102 | { |
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| 103 | // if there is an active link program then return it |
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| 104 | if (mActiveLinkProgram) |
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| 105 | return mActiveLinkProgram; |
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| 106 | |
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| 107 | // no active link program so find one or make a new one |
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| 108 | // is there an active key? |
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| 109 | GLuint activeKey = 0; |
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| 110 | |
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| 111 | if (mActiveVertexGpuProgram) |
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| 112 | { |
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| 113 | activeKey = mActiveVertexGpuProgram->getProgramID() << 16; |
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| 114 | } |
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| 115 | |
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| 116 | if (mActiveFragmentGpuProgram) |
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| 117 | { |
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| 118 | activeKey += mActiveFragmentGpuProgram->getProgramID(); |
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| 119 | } |
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| 120 | |
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| 121 | // only return a link program object if a vertex or fragment program exist |
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| 122 | if (activeKey > 0) |
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| 123 | { |
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| 124 | // find the key in the hash map |
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| 125 | LinkProgramIterator programFound = LinkPrograms.find(activeKey); |
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| 126 | // program object not found for key so need to create it |
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| 127 | if (programFound == LinkPrograms.end()) |
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| 128 | { |
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| 129 | mActiveLinkProgram = new GLSLLinkProgram(mActiveVertexGpuProgram, mActiveFragmentGpuProgram); |
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| 130 | LinkPrograms[activeKey] = mActiveLinkProgram; |
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| 131 | } |
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| 132 | else |
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| 133 | { |
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| 134 | // found a link program in map container so make it active |
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| 135 | mActiveLinkProgram = programFound->second; |
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| 136 | } |
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| 137 | |
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| 138 | } |
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| 139 | // make the program object active |
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| 140 | if (mActiveLinkProgram) mActiveLinkProgram->activate(); |
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| 141 | |
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| 142 | return mActiveLinkProgram; |
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| 143 | |
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| 144 | } |
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| 145 | |
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| 146 | //----------------------------------------------------------------------- |
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| 147 | void GLSLLinkProgramManager::setActiveFragmentShader(GLSLGpuProgram* fragmentGpuProgram) |
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| 148 | { |
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| 149 | if (fragmentGpuProgram != mActiveFragmentGpuProgram) |
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| 150 | { |
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| 151 | mActiveFragmentGpuProgram = fragmentGpuProgram; |
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| 152 | // ActiveLinkProgram is no longer valid |
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| 153 | mActiveLinkProgram = NULL; |
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| 154 | // change back to fixed pipeline |
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| 155 | glUseProgramObjectARB(0); |
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| 156 | } |
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| 157 | } |
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| 158 | |
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| 159 | //----------------------------------------------------------------------- |
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| 160 | void GLSLLinkProgramManager::setActiveVertexShader(GLSLGpuProgram* vertexGpuProgram) |
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| 161 | { |
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| 162 | if (vertexGpuProgram != mActiveVertexGpuProgram) |
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| 163 | { |
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| 164 | mActiveVertexGpuProgram = vertexGpuProgram; |
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| 165 | // ActiveLinkProgram is no longer valid |
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| 166 | mActiveLinkProgram = NULL; |
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| 167 | // change back to fixed pipeline |
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| 168 | glUseProgramObjectARB(0); |
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| 169 | } |
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| 170 | } |
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| 171 | //--------------------------------------------------------------------- |
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| 172 | void GLSLLinkProgramManager::completeDefInfo(GLenum gltype, |
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| 173 | GpuConstantDefinition& defToUpdate) |
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| 174 | { |
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| 175 | // decode uniform size and type |
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| 176 | // Note GLSL never packs rows into float4's(from an API perspective anyway) |
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| 177 | // therefore all values are tight in the buffer |
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| 178 | switch (gltype) |
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| 179 | { |
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| 180 | case GL_FLOAT: |
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| 181 | defToUpdate.constType = GCT_FLOAT1; |
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| 182 | defToUpdate.elementSize = 1; |
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| 183 | break; |
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| 184 | case GL_FLOAT_VEC2: |
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| 185 | defToUpdate.constType = GCT_FLOAT2; |
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| 186 | defToUpdate.elementSize = 2; |
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| 187 | break; |
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| 188 | |
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| 189 | case GL_FLOAT_VEC3: |
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| 190 | defToUpdate.constType = GCT_FLOAT3; |
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| 191 | defToUpdate.elementSize = 3; |
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| 192 | break; |
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| 193 | |
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| 194 | case GL_FLOAT_VEC4: |
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| 195 | defToUpdate.constType = GCT_FLOAT4; |
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| 196 | defToUpdate.elementSize = 4; |
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| 197 | break; |
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| 198 | case GL_SAMPLER_1D: |
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| 199 | // need to record samplers for GLSL |
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| 200 | defToUpdate.constType = GCT_SAMPLER1D; |
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| 201 | defToUpdate.elementSize = 1; |
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| 202 | break; |
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| 203 | case GL_SAMPLER_2D: |
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| 204 | case GL_SAMPLER_2D_RECT_ARB: |
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| 205 | defToUpdate.constType = GCT_SAMPLER2D; |
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| 206 | defToUpdate.elementSize = 1; |
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| 207 | break; |
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| 208 | case GL_SAMPLER_3D: |
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| 209 | defToUpdate.constType = GCT_SAMPLER3D; |
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| 210 | defToUpdate.elementSize = 1; |
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| 211 | break; |
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| 212 | case GL_SAMPLER_CUBE: |
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| 213 | defToUpdate.constType = GCT_SAMPLERCUBE; |
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| 214 | defToUpdate.elementSize = 1; |
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| 215 | break; |
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| 216 | case GL_SAMPLER_1D_SHADOW: |
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| 217 | defToUpdate.constType = GCT_SAMPLER1DSHADOW; |
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| 218 | defToUpdate.elementSize = 1; |
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| 219 | break; |
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| 220 | case GL_SAMPLER_2D_SHADOW: |
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| 221 | case GL_SAMPLER_2D_RECT_SHADOW_ARB: |
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| 222 | defToUpdate.constType = GCT_SAMPLER2DSHADOW; |
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| 223 | defToUpdate.elementSize = 1; |
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| 224 | break; |
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| 225 | case GL_INT: |
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| 226 | defToUpdate.constType = GCT_INT1; |
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| 227 | defToUpdate.elementSize = 1; |
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| 228 | break; |
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| 229 | case GL_INT_VEC2: |
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| 230 | defToUpdate.constType = GCT_INT2; |
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| 231 | defToUpdate.elementSize = 2; |
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| 232 | break; |
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| 233 | case GL_INT_VEC3: |
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| 234 | defToUpdate.constType = GCT_INT3; |
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| 235 | defToUpdate.elementSize = 3; |
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| 236 | break; |
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| 237 | case GL_INT_VEC4: |
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| 238 | defToUpdate.constType = GCT_INT4; |
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| 239 | defToUpdate.elementSize = 4; |
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| 240 | break; |
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| 241 | case GL_FLOAT_MAT2: |
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| 242 | defToUpdate.constType = GCT_MATRIX_2X2; |
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| 243 | defToUpdate.elementSize = 4; |
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| 244 | break; |
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| 245 | case GL_FLOAT_MAT3: |
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| 246 | defToUpdate.constType = GCT_MATRIX_3X3; |
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| 247 | defToUpdate.elementSize = 9; |
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| 248 | break; |
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| 249 | case GL_FLOAT_MAT4: |
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| 250 | defToUpdate.constType = GCT_MATRIX_4X4; |
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| 251 | defToUpdate.elementSize = 16; |
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| 252 | break; |
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| 253 | case GL_FLOAT_MAT2x3: |
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| 254 | defToUpdate.constType = GCT_MATRIX_2X3; |
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| 255 | defToUpdate.elementSize = 6; |
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| 256 | break; |
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| 257 | case GL_FLOAT_MAT3x2: |
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| 258 | defToUpdate.constType = GCT_MATRIX_3X2; |
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| 259 | defToUpdate.elementSize = 6; |
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| 260 | break; |
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| 261 | case GL_FLOAT_MAT2x4: |
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| 262 | defToUpdate.constType = GCT_MATRIX_2X4; |
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| 263 | defToUpdate.elementSize = 8; |
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| 264 | break; |
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| 265 | case GL_FLOAT_MAT4x2: |
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| 266 | defToUpdate.constType = GCT_MATRIX_4X2; |
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| 267 | defToUpdate.elementSize = 8; |
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| 268 | break; |
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| 269 | case GL_FLOAT_MAT3x4: |
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| 270 | defToUpdate.constType = GCT_MATRIX_3X4; |
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| 271 | defToUpdate.elementSize = 12; |
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| 272 | break; |
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| 273 | case GL_FLOAT_MAT4x3: |
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| 274 | defToUpdate.constType = GCT_MATRIX_4X3; |
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| 275 | defToUpdate.elementSize = 12; |
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| 276 | break; |
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| 277 | default: |
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| 278 | defToUpdate.constType = GCT_UNKNOWN; |
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| 279 | break; |
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| 280 | |
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| 281 | } |
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| 282 | |
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| 283 | } |
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| 284 | //--------------------------------------------------------------------- |
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| 285 | bool GLSLLinkProgramManager::completeParamSource( |
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| 286 | const String& paramName, |
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| 287 | const GpuConstantDefinitionMap* vertexConstantDefs, |
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| 288 | const GpuConstantDefinitionMap* fragmentConstantDefs, |
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| 289 | GLUniformReference& refToUpdate) |
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| 290 | { |
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| 291 | if (vertexConstantDefs) |
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| 292 | { |
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| 293 | GpuConstantDefinitionMap::const_iterator parami = |
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| 294 | vertexConstantDefs->find(paramName); |
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| 295 | if (parami != vertexConstantDefs->end()) |
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| 296 | { |
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| 297 | refToUpdate.mSourceProgType = GPT_VERTEX_PROGRAM; |
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| 298 | refToUpdate.mConstantDef = &(parami->second); |
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| 299 | return true; |
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| 300 | } |
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| 301 | |
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| 302 | } |
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| 303 | if (fragmentConstantDefs) |
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| 304 | { |
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| 305 | GpuConstantDefinitionMap::const_iterator parami = |
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| 306 | fragmentConstantDefs->find(paramName); |
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| 307 | if (parami != fragmentConstantDefs->end()) |
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| 308 | { |
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| 309 | refToUpdate.mSourceProgType = GPT_FRAGMENT_PROGRAM; |
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| 310 | refToUpdate.mConstantDef = &(parami->second); |
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| 311 | return true; |
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| 312 | } |
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| 313 | } |
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| 314 | return false; |
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| 315 | |
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| 316 | |
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| 317 | } |
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| 318 | //--------------------------------------------------------------------- |
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| 319 | void GLSLLinkProgramManager::extractUniforms(GLhandleARB programObject, |
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| 320 | const GpuConstantDefinitionMap* vertexConstantDefs, |
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| 321 | const GpuConstantDefinitionMap* fragmentConstantDefs, |
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| 322 | GLUniformReferenceList& list) |
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| 323 | { |
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| 324 | // scan through the active uniforms and add them to the reference list |
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| 325 | GLint uniformCount; |
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| 326 | |
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| 327 | #define BUFFERSIZE 200 |
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| 328 | char uniformName[BUFFERSIZE]; |
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| 329 | //GLint location; |
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| 330 | GLUniformReference newGLUniformReference; |
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| 331 | |
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| 332 | // get the number of active uniforms |
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| 333 | glGetObjectParameterivARB(programObject, GL_OBJECT_ACTIVE_UNIFORMS_ARB, |
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| 334 | &uniformCount); |
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| 335 | |
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| 336 | // Loop over each of the active uniforms, and add them to the reference container |
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| 337 | // only do this for user defined uniforms, ignore built in gl state uniforms |
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| 338 | for (int index = 0; index < uniformCount; index++) |
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| 339 | { |
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| 340 | GLint arraySize; |
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| 341 | GLenum glType; |
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| 342 | glGetActiveUniformARB(programObject, index, BUFFERSIZE, NULL, |
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| 343 | &arraySize, &glType, uniformName); |
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| 344 | // don't add built in uniforms |
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| 345 | newGLUniformReference.mLocation = glGetUniformLocationARB(programObject, uniformName); |
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| 346 | if (newGLUniformReference.mLocation >= 0) |
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| 347 | { |
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| 348 | // user defined uniform found, add it to the reference list |
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| 349 | String paramName = String( uniformName ); |
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| 350 | |
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| 351 | // currant ATI drivers (Catalyst 7.2 and earlier) and older NVidia drivers will include all array elements as uniforms but we only want the root array name and location |
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| 352 | // Also note that ATI Catalyst 6.8 to 7.2 there is a bug with glUniform that does not allow you to update a uniform array past the first uniform array element |
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| 353 | // ie you can't start updating an array starting at element 1, must always be element 0. |
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| 354 | |
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| 355 | // if the uniform name has a "[" in it then its an array element uniform. |
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| 356 | String::size_type arrayStart = paramName.find("["); |
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| 357 | if (arrayStart != String::npos) |
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| 358 | { |
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| 359 | // if not the first array element then skip it and continue to the next uniform |
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| 360 | if (paramName.compare(arrayStart, paramName.size() - 1, "[0]") != 0) continue; |
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| 361 | paramName = paramName.substr(0, arrayStart); |
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| 362 | } |
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| 363 | |
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| 364 | // find out which params object this comes from |
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| 365 | bool foundSource = completeParamSource(paramName, |
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| 366 | vertexConstantDefs, |
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| 367 | fragmentConstantDefs, newGLUniformReference); |
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| 368 | |
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| 369 | // only add this parameter if we found the source |
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| 370 | if (foundSource) |
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| 371 | { |
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| 372 | assert(arraySize == newGLUniformReference.mConstantDef->arraySize |
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| 373 | && "GL doesn't agree with our array size!"); |
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| 374 | list.push_back(newGLUniformReference); |
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| 375 | } |
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| 376 | |
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| 377 | // Don't bother adding individual array params, they will be |
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| 378 | // picked up in the 'parent' parameter can copied all at once |
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| 379 | // anyway, individual indexes are only needed for lookup from |
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| 380 | // user params |
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| 381 | } // end if |
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| 382 | } // end for |
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| 383 | |
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| 384 | } |
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| 385 | //--------------------------------------------------------------------- |
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| 386 | void GLSLLinkProgramManager::extractConstantDefs(const String& src, |
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| 387 | GpuNamedConstants& defs, const String& filename) |
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| 388 | { |
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| 389 | // Could have done this as a compiler but we don't want to have to |
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| 390 | // create a BNF for the whole GLSL syntax, so use a simpler method |
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| 391 | String::size_type currPos = 0; |
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| 392 | String line; |
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| 393 | currPos = src.find("uniform", currPos); |
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| 394 | while (currPos != String::npos) |
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| 395 | { |
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| 396 | GpuConstantDefinition def; |
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| 397 | String paramName; |
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| 398 | |
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| 399 | // Check that this is not in a comment block |
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| 400 | bool inComment = false; |
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| 401 | |
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| 402 | // block-comments |
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| 403 | size_t commentStart = src.rfind("/*", currPos); |
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| 404 | if (commentStart != String::npos) |
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| 405 | { |
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| 406 | size_t commentEnd = src.rfind("*/", currPos); |
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| 407 | if (commentEnd == String::npos || commentEnd < commentStart) |
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| 408 | { |
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| 409 | // no ending comment, or ending comment was from a previous batch |
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| 410 | inComment = true; |
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| 411 | } |
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| 412 | } |
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| 413 | // line-comments |
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| 414 | if (!inComment) |
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| 415 | { |
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| 416 | commentStart = src.rfind("//", currPos); |
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| 417 | if (commentStart != String::npos) |
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| 418 | { |
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| 419 | size_t lineEnd = src.rfind("\n", currPos); |
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| 420 | |
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| 421 | // On same line as comment? Either no newline or nearest is before comment start |
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| 422 | if (lineEnd == String::npos || lineEnd < commentStart) |
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| 423 | { |
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| 424 | inComment = true; |
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| 425 | } |
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| 426 | } |
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| 427 | } |
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| 428 | |
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| 429 | // Now check for using the word 'uniform' in a larger string & ignore |
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| 430 | bool inLargerString = false; |
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| 431 | if (!inComment) |
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| 432 | { |
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| 433 | if (currPos != 0) |
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| 434 | { |
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| 435 | char prev = src.at(currPos - 1); |
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| 436 | if (prev != ' ' && prev != '\t' && prev != '\r' && prev != '\n' |
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| 437 | && prev != ';') |
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| 438 | inLargerString = true; |
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| 439 | } |
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| 440 | if (!inLargerString && currPos + 7 < src.size()) |
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| 441 | { |
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| 442 | char next = src.at(currPos + 7); |
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| 443 | if (next != ' ' && next != '\t' && next != '\r' && next != '\n') |
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| 444 | inLargerString = true; |
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| 445 | } |
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| 446 | |
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| 447 | } |
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| 448 | |
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| 449 | // skip 'uniform' |
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| 450 | currPos += 7; |
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| 451 | |
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| 452 | if (!inComment && !inLargerString) |
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| 453 | { |
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| 454 | // find terminating semicolon |
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| 455 | String::size_type endPos = src.find(";", currPos); |
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| 456 | if (endPos == String::npos) |
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| 457 | { |
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| 458 | // problem, missing semicolon, abort |
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| 459 | break; |
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| 460 | } |
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| 461 | line = src.substr(currPos, endPos - currPos); |
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| 462 | |
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| 463 | // Split into tokens |
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| 464 | StringVector parts = StringUtil::split(line, ", \t\r\n"); |
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| 465 | |
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| 466 | for (StringVector::iterator i = parts.begin(); i != parts.end(); ++i) |
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| 467 | { |
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| 468 | // Is this a type? |
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| 469 | StringToEnumMap::iterator typei = mTypeEnumMap.find(*i); |
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| 470 | if (typei != mTypeEnumMap.end()) |
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| 471 | { |
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| 472 | completeDefInfo(typei->second, def); |
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| 473 | } |
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| 474 | else |
---|
| 475 | { |
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| 476 | // if this is not a type, and not empty, it should be a name |
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| 477 | StringUtil::trim(*i); |
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| 478 | if (i->empty()) continue; |
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| 479 | |
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| 480 | String::size_type arrayStart = i->find("[", 0); |
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| 481 | if (arrayStart != String::npos) |
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| 482 | { |
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| 483 | // potential name (if butted up to array) |
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| 484 | String name = i->substr(0, arrayStart); |
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| 485 | StringUtil::trim(name); |
---|
| 486 | if (!name.empty()) |
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| 487 | paramName = name; |
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| 488 | |
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| 489 | String::size_type arrayEnd = i->find("]", arrayStart); |
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| 490 | String arrayDimTerm = i->substr(arrayStart + 1, arrayEnd - arrayStart - 1); |
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| 491 | StringUtil::trim(arrayDimTerm); |
---|
| 492 | // the array term might be a simple number or it might be |
---|
| 493 | // an expression (e.g. 24*3) or refer to a constant expression |
---|
| 494 | // we'd have to evaluate the expression which could get nasty |
---|
| 495 | // TODO |
---|
| 496 | def.arraySize = StringConverter::parseInt(arrayDimTerm); |
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| 497 | |
---|
| 498 | } |
---|
| 499 | else |
---|
| 500 | { |
---|
| 501 | paramName = *i; |
---|
| 502 | def.arraySize = 1; |
---|
| 503 | } |
---|
| 504 | |
---|
| 505 | // Name should be after the type, so complete def and add |
---|
| 506 | // We do this now so that comma-separated params will do |
---|
| 507 | // this part once for each name mentioned |
---|
| 508 | if (def.constType == GCT_UNKNOWN) |
---|
| 509 | { |
---|
| 510 | LogManager::getSingleton().logMessage( |
---|
| 511 | "Problem parsing the following GLSL Uniform: '" |
---|
| 512 | + line + "' in file " + filename); |
---|
| 513 | // next uniform |
---|
| 514 | break; |
---|
| 515 | } |
---|
| 516 | |
---|
| 517 | // Complete def and add |
---|
| 518 | // increment physical buffer location |
---|
| 519 | if (def.isFloat()) |
---|
| 520 | { |
---|
| 521 | def.physicalIndex = defs.floatBufferSize; |
---|
| 522 | defs.floatBufferSize += def.arraySize * def.elementSize; |
---|
| 523 | } |
---|
| 524 | else |
---|
| 525 | { |
---|
| 526 | def.physicalIndex = defs.intBufferSize; |
---|
| 527 | defs.intBufferSize += def.arraySize * def.elementSize; |
---|
| 528 | } |
---|
| 529 | defs.map.insert(GpuConstantDefinitionMap::value_type(paramName, def)); |
---|
| 530 | |
---|
| 531 | // Generate array accessors |
---|
| 532 | defs.generateConstantDefinitionArrayEntries(paramName, def); |
---|
| 533 | |
---|
| 534 | |
---|
| 535 | } |
---|
| 536 | |
---|
| 537 | } |
---|
| 538 | |
---|
| 539 | } // not commented or a larger symbol |
---|
| 540 | |
---|
| 541 | // Find next one |
---|
| 542 | currPos = src.find("uniform", currPos); |
---|
| 543 | |
---|
| 544 | } |
---|
| 545 | |
---|
| 546 | } |
---|
| 547 | |
---|
| 548 | } |
---|