| 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 | #include "OgreCgProgram.h" |
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| 30 | #include "OgreGpuProgramManager.h" |
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| 31 | #include "OgreStringConverter.h" |
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| 32 | #include "OgreLogManager.h" |
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| 33 | |
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| 34 | namespace Ogre { |
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| 35 | //----------------------------------------------------------------------- |
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| 36 | CgProgram::CmdEntryPoint CgProgram::msCmdEntryPoint; |
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| 37 | CgProgram::CmdProfiles CgProgram::msCmdProfiles; |
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| 38 | CgProgram::CmdArgs CgProgram::msCmdArgs; |
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| 39 | //----------------------------------------------------------------------- |
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| 40 | void CgProgram::selectProfile(void) |
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| 41 | { |
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| 42 | mSelectedProfile.clear(); |
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| 43 | mSelectedCgProfile = CG_PROFILE_UNKNOWN; |
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| 44 | |
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| 45 | StringVector::iterator i, iend; |
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| 46 | iend = mProfiles.end(); |
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| 47 | GpuProgramManager& gpuMgr = GpuProgramManager::getSingleton(); |
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| 48 | for (i = mProfiles.begin(); i != iend; ++i) |
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| 49 | { |
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| 50 | if (gpuMgr.isSyntaxSupported(*i)) |
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| 51 | { |
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| 52 | mSelectedProfile = *i; |
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| 53 | mSelectedCgProfile = cgGetProfile(mSelectedProfile.c_str()); |
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| 54 | // Check for errors |
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| 55 | checkForCgError("CgProgram::selectProfile", |
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| 56 | "Unable to find CG profile enum for program " + mName + ": ", mCgContext); |
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| 57 | break; |
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| 58 | } |
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| 59 | } |
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| 60 | } |
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| 61 | //----------------------------------------------------------------------- |
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| 62 | void CgProgram::buildArgs(void) |
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| 63 | { |
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| 64 | StringVector args; |
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| 65 | if (!mCompileArgs.empty()) |
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| 66 | args = StringUtil::split(mCompileArgs); |
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| 67 | |
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| 68 | StringVector::const_iterator i; |
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| 69 | if (mSelectedCgProfile == CG_PROFILE_VS_1_1) |
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| 70 | { |
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| 71 | // Need the 'dcls' argument whenever we use this profile |
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| 72 | // otherwise compilation of the assembler will fail |
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| 73 | bool dclsFound = false; |
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| 74 | for (i = args.begin(); i != args.end(); ++i) |
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| 75 | { |
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| 76 | if (*i == "dcls") |
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| 77 | { |
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| 78 | dclsFound = true; |
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| 79 | break; |
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| 80 | } |
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| 81 | } |
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| 82 | if (!dclsFound) |
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| 83 | { |
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| 84 | args.push_back("-profileopts"); |
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| 85 | args.push_back("dcls"); |
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| 86 | } |
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| 87 | } |
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| 88 | // Now split args into that god-awful char** that Cg insists on |
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| 89 | freeCgArgs(); |
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| 90 | mCgArguments = new char*[args.size() + 1]; |
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| 91 | int index = 0; |
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| 92 | for (i = args.begin(); i != args.end(); ++i, ++index) |
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| 93 | { |
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| 94 | mCgArguments[index] = new char[i->length() + 1]; |
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| 95 | strcpy(mCgArguments[index], i->c_str()); |
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| 96 | } |
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| 97 | // Null terminate list |
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| 98 | mCgArguments[index] = 0; |
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| 99 | |
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| 100 | |
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| 101 | } |
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| 102 | //----------------------------------------------------------------------- |
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| 103 | void CgProgram::freeCgArgs(void) |
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| 104 | { |
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| 105 | if (mCgArguments) |
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| 106 | { |
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| 107 | size_t index = 0; |
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| 108 | char* current = mCgArguments[index]; |
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| 109 | while (current) |
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| 110 | { |
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| 111 | delete [] current; |
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| 112 | current = mCgArguments[++index]; |
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| 113 | } |
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| 114 | delete [] mCgArguments; |
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| 115 | mCgArguments = 0; |
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| 116 | } |
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| 117 | } |
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| 118 | //----------------------------------------------------------------------- |
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| 119 | void CgProgram::loadFromSource(void) |
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| 120 | { |
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| 121 | // Create Cg Program |
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| 122 | selectProfile(); |
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| 123 | if (mSelectedCgProfile == CG_PROFILE_UNKNOWN) |
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| 124 | { |
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| 125 | LogManager::getSingleton().logMessage( |
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| 126 | "Attempted to load Cg program '" + mName + "', but no suported " |
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| 127 | "profile was found. "); |
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| 128 | return; |
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| 129 | } |
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| 130 | buildArgs(); |
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| 131 | mCgProgram = cgCreateProgram(mCgContext, CG_SOURCE, mSource.c_str(), |
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| 132 | mSelectedCgProfile, mEntryPoint.c_str(), const_cast<const char**>(mCgArguments)); |
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| 133 | |
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| 134 | // Test |
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| 135 | //LogManager::getSingleton().logMessage(cgGetProgramString(mCgProgram, CG_COMPILED_PROGRAM)); |
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| 136 | |
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| 137 | // Check for errors |
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| 138 | checkForCgError("CgProgram::loadFromSource", |
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| 139 | "Unable to compile Cg program " + mName + ": ", mCgContext); |
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| 140 | |
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| 141 | } |
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| 142 | //----------------------------------------------------------------------- |
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| 143 | void CgProgram::createLowLevelImpl(void) |
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| 144 | { |
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| 145 | // ignore any previous error |
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| 146 | if (mSelectedCgProfile != CG_PROFILE_UNKNOWN) |
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| 147 | { |
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| 148 | |
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| 149 | // Create a low-level program, give it the same name as us |
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| 150 | mAssemblerProgram = |
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| 151 | GpuProgramManager::getSingleton().createProgramFromString( |
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| 152 | mName, |
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| 153 | mGroup, |
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| 154 | cgGetProgramString(mCgProgram, CG_COMPILED_PROGRAM), |
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| 155 | mType, |
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| 156 | mSelectedProfile); |
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| 157 | } |
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| 158 | } |
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| 159 | //----------------------------------------------------------------------- |
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| 160 | void CgProgram::unloadHighLevelImpl(void) |
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| 161 | { |
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| 162 | // Unload Cg Program |
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| 163 | // Lowlevel program will get unloaded elsewhere |
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| 164 | if (mCgProgram) |
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| 165 | { |
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| 166 | cgDestroyProgram(mCgProgram); |
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| 167 | checkForCgError("CgProgram::unloadImpl", |
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| 168 | "Error while unloading Cg program " + mName + ": ", |
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| 169 | mCgContext); |
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| 170 | mCgProgram = 0; |
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| 171 | } |
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| 172 | } |
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| 173 | //----------------------------------------------------------------------- |
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| 174 | void CgProgram::buildConstantDefinitions() const |
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| 175 | { |
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| 176 | // Derive parameter names from Cg |
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| 177 | |
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| 178 | mFloatLogicalToPhysical.bufferSize = 0; |
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| 179 | mIntLogicalToPhysical.bufferSize = 0; |
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| 180 | mConstantDefs.floatBufferSize = 0; |
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| 181 | mConstantDefs.intBufferSize = 0; |
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| 182 | |
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| 183 | if (!mCgProgram) |
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| 184 | return; |
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| 185 | |
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| 186 | recurseParams(cgGetFirstParameter(mCgProgram, CG_PROGRAM)); |
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| 187 | recurseParams(cgGetFirstParameter(mCgProgram, CG_GLOBAL)); |
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| 188 | } |
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| 189 | //--------------------------------------------------------------------- |
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| 190 | void CgProgram::recurseParams(CGparameter parameter, size_t contextArraySize) const |
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| 191 | { |
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| 192 | while (parameter != 0) |
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| 193 | { |
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| 194 | // Look for uniform (non-sampler) parameters only |
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| 195 | // Don't bother enumerating unused parameters, especially since they will |
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| 196 | // be optimised out and therefore not in the indexed versions |
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| 197 | CGtype paramType = cgGetParameterType(parameter); |
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| 198 | |
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| 199 | if (cgGetParameterVariability(parameter) == CG_UNIFORM && |
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| 200 | paramType != CG_SAMPLER1D && |
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| 201 | paramType != CG_SAMPLER2D && |
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| 202 | paramType != CG_SAMPLER3D && |
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| 203 | paramType != CG_SAMPLERCUBE && |
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| 204 | paramType != CG_SAMPLERRECT && |
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| 205 | cgGetParameterDirection(parameter) != CG_OUT && |
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| 206 | cgIsParameterReferenced(parameter)) |
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| 207 | { |
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| 208 | int arraySize; |
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| 209 | |
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| 210 | switch(paramType) |
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| 211 | { |
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| 212 | case CG_STRUCT: |
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| 213 | recurseParams(cgGetFirstStructParameter(parameter)); |
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| 214 | break; |
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| 215 | case CG_ARRAY: |
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| 216 | // Support only 1-dimensional arrays |
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| 217 | arraySize = cgGetArraySize(parameter, 0); |
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| 218 | recurseParams(cgGetArrayParameter(parameter, 0), (size_t)arraySize); |
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| 219 | break; |
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| 220 | default: |
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| 221 | // Normal path (leaf) |
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| 222 | String paramName = cgGetParameterName(parameter); |
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| 223 | size_t logicalIndex = cgGetParameterResourceIndex(parameter); |
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| 224 | |
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| 225 | // Get the parameter resource, to calculate the physical index |
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| 226 | CGresource res = cgGetParameterResource(parameter); |
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| 227 | bool isRegisterCombiner = false; |
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| 228 | size_t regCombinerPhysicalIndex = 0; |
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| 229 | switch (res) |
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| 230 | { |
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| 231 | case CG_COMBINER_STAGE_CONST0: |
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| 232 | // register combiner, const 0 |
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| 233 | // the index relates to the texture stage; store this as (stage * 2) + 0 |
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| 234 | regCombinerPhysicalIndex = logicalIndex * 2; |
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| 235 | isRegisterCombiner = true; |
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| 236 | break; |
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| 237 | case CG_COMBINER_STAGE_CONST1: |
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| 238 | // register combiner, const 1 |
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| 239 | // the index relates to the texture stage; store this as (stage * 2) + 1 |
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| 240 | regCombinerPhysicalIndex = (logicalIndex * 2) + 1; |
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| 241 | isRegisterCombiner = true; |
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| 242 | break; |
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| 243 | default: |
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| 244 | // normal constant |
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| 245 | break; |
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| 246 | } |
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| 247 | |
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| 248 | // Trim the '[0]' suffix if it exists, we will add our own indexing later |
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| 249 | if (StringUtil::endsWith(paramName, "[0]", false)) |
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| 250 | { |
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| 251 | paramName.erase(paramName.size() - 3); |
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| 252 | } |
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| 253 | |
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| 254 | |
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| 255 | GpuConstantDefinition def; |
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| 256 | def.arraySize = contextArraySize; |
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| 257 | mapTypeAndElementSize(paramType, isRegisterCombiner, def); |
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| 258 | |
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| 259 | if (def.constType == GCT_UNKNOWN) |
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| 260 | { |
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| 261 | LogManager::getSingleton().logMessage( |
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| 262 | "Problem parsing the following Cg Uniform: '" |
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| 263 | + paramName + "' in file " + mName); |
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| 264 | // next uniform |
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| 265 | continue; |
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| 266 | } |
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| 267 | if (isRegisterCombiner) |
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| 268 | { |
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| 269 | def.physicalIndex = regCombinerPhysicalIndex; |
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| 270 | } |
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| 271 | else |
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| 272 | { |
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| 273 | // base position on existing buffer contents |
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| 274 | if (def.isFloat()) |
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| 275 | { |
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| 276 | def.physicalIndex = mFloatLogicalToPhysical.bufferSize; |
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| 277 | } |
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| 278 | else |
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| 279 | { |
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| 280 | def.physicalIndex = mIntLogicalToPhysical.bufferSize; |
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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 | mConstantDefs.map.insert(GpuConstantDefinitionMap::value_type(paramName, def)); |
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| 286 | |
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| 287 | // Record logical / physical mapping |
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| 288 | if (def.isFloat()) |
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| 289 | { |
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| 290 | OGRE_LOCK_MUTEX(mFloatLogicalToPhysical.mutex) |
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| 291 | mFloatLogicalToPhysical.map.insert( |
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| 292 | GpuLogicalIndexUseMap::value_type(logicalIndex, |
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| 293 | GpuLogicalIndexUse(def.physicalIndex, def.arraySize * def.elementSize))); |
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| 294 | mFloatLogicalToPhysical.bufferSize += def.arraySize * def.elementSize; |
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| 295 | mConstantDefs.floatBufferSize = mFloatLogicalToPhysical.bufferSize; |
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| 296 | } |
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| 297 | else |
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| 298 | { |
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| 299 | OGRE_LOCK_MUTEX(mIntLogicalToPhysical.mutex) |
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| 300 | mIntLogicalToPhysical.map.insert( |
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| 301 | GpuLogicalIndexUseMap::value_type(logicalIndex, |
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| 302 | GpuLogicalIndexUse(def.physicalIndex, def.arraySize * def.elementSize))); |
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| 303 | mIntLogicalToPhysical.bufferSize += def.arraySize * def.elementSize; |
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| 304 | mConstantDefs.intBufferSize = mIntLogicalToPhysical.bufferSize; |
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| 305 | } |
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| 306 | |
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| 307 | // Deal with array indexing |
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| 308 | mConstantDefs.generateConstantDefinitionArrayEntries(paramName, def); |
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| 309 | |
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| 310 | break; |
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| 311 | |
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| 312 | } |
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| 313 | |
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| 314 | } |
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| 315 | // Get next |
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| 316 | parameter = cgGetNextParameter(parameter); |
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| 317 | } |
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| 318 | |
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| 319 | |
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| 320 | } |
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| 321 | //----------------------------------------------------------------------- |
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| 322 | void CgProgram::mapTypeAndElementSize(CGtype cgType, bool isRegisterCombiner, |
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| 323 | GpuConstantDefinition& def) const |
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| 324 | { |
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| 325 | if (isRegisterCombiner) |
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| 326 | { |
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| 327 | // register combiners are the only single-float entries in our buffer |
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| 328 | def.constType = GCT_FLOAT1; |
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| 329 | def.elementSize = 1; |
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| 330 | } |
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| 331 | else |
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| 332 | { |
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| 333 | switch(cgType) |
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| 334 | { |
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| 335 | case CG_FLOAT: |
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| 336 | case CG_FLOAT1: |
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| 337 | case CG_HALF: |
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| 338 | case CG_HALF1: |
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| 339 | def.constType = GCT_FLOAT1; |
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| 340 | def.elementSize = 4; // padded to 4 elements |
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| 341 | break; |
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| 342 | case CG_FLOAT2: |
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| 343 | case CG_HALF2: |
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| 344 | def.constType = GCT_FLOAT2; |
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| 345 | def.elementSize = 4; // padded to 4 elements |
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| 346 | break; |
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| 347 | case CG_FLOAT3: |
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| 348 | case CG_HALF3: |
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| 349 | def.constType = GCT_FLOAT3; |
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| 350 | def.elementSize = 4; // padded to 4 elements |
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| 351 | break; |
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| 352 | case CG_FLOAT4: |
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| 353 | case CG_HALF4: |
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| 354 | def.constType = GCT_FLOAT4; |
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| 355 | def.elementSize = 4; |
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| 356 | break; |
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| 357 | case CG_FLOAT2x2: |
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| 358 | case CG_HALF2x2: |
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| 359 | def.constType = GCT_MATRIX_2X2; |
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| 360 | def.elementSize = 8; // Cg pads this to 2 float4s |
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| 361 | break; |
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| 362 | case CG_FLOAT2x3: |
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| 363 | case CG_HALF2x3: |
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| 364 | def.constType = GCT_MATRIX_2X3; |
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| 365 | def.elementSize = 8; // Cg pads this to 2 float4s |
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| 366 | break; |
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| 367 | case CG_FLOAT2x4: |
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| 368 | case CG_HALF2x4: |
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| 369 | def.constType = GCT_MATRIX_2X4; |
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| 370 | def.elementSize = 8; |
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| 371 | break; |
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| 372 | case CG_FLOAT3x2: |
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| 373 | case CG_HALF3x2: |
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| 374 | def.constType = GCT_MATRIX_2X3; |
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| 375 | def.elementSize = 12; // Cg pads this to 3 float4s |
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| 376 | break; |
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| 377 | case CG_FLOAT3x3: |
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| 378 | case CG_HALF3x3: |
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| 379 | def.constType = GCT_MATRIX_3X3; |
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| 380 | def.elementSize = 12; // Cg pads this to 3 float4s |
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| 381 | break; |
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| 382 | case CG_FLOAT3x4: |
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| 383 | case CG_HALF3x4: |
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| 384 | def.constType = GCT_MATRIX_3X4; |
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| 385 | def.elementSize = 12; |
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| 386 | break; |
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| 387 | case CG_FLOAT4x2: |
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| 388 | case CG_HALF4x2: |
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| 389 | def.constType = GCT_MATRIX_4X2; |
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| 390 | def.elementSize = 16; // Cg pads this to 4 float4s |
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| 391 | break; |
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| 392 | case CG_FLOAT4x3: |
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| 393 | case CG_HALF4x3: |
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| 394 | def.constType = GCT_MATRIX_4X3; |
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| 395 | def.elementSize = 16; // Cg pads this to 4 float4s |
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| 396 | break; |
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| 397 | case CG_FLOAT4x4: |
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| 398 | case CG_HALF4x4: |
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| 399 | def.constType = GCT_MATRIX_4X4; |
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| 400 | def.elementSize = 16; // Cg pads this to 4 float4s |
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| 401 | break; |
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| 402 | case CG_INT: |
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| 403 | case CG_INT1: |
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| 404 | def.constType = GCT_INT1; |
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| 405 | def.elementSize = 4; // Cg pads this to int4 |
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| 406 | break; |
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| 407 | case CG_INT2: |
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| 408 | def.constType = GCT_INT2; |
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| 409 | def.elementSize = 4; // Cg pads this to int4 |
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| 410 | break; |
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| 411 | case CG_INT3: |
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| 412 | def.constType = GCT_INT3; |
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| 413 | def.elementSize = 4; // Cg pads this to int4 |
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| 414 | break; |
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| 415 | case CG_INT4: |
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| 416 | def.constType = GCT_INT4; |
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| 417 | def.elementSize = 4; |
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| 418 | break; |
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| 419 | default: |
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| 420 | def.constType = GCT_UNKNOWN; |
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| 421 | break; |
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| 422 | } |
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| 423 | } |
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| 424 | } |
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| 425 | //----------------------------------------------------------------------- |
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| 426 | CgProgram::CgProgram(ResourceManager* creator, const String& name, |
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| 427 | ResourceHandle handle, const String& group, bool isManual, |
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| 428 | ManualResourceLoader* loader, CGcontext context) |
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| 429 | : HighLevelGpuProgram(creator, name, handle, group, isManual, loader), |
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| 430 | mCgContext(context), mCgProgram(0), |
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| 431 | mSelectedCgProfile(CG_PROFILE_UNKNOWN), mCgArguments(0) |
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| 432 | { |
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| 433 | if (createParamDictionary("CgProgram")) |
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| 434 | { |
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| 435 | setupBaseParamDictionary(); |
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| 436 | |
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| 437 | ParamDictionary* dict = getParamDictionary(); |
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| 438 | |
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| 439 | dict->addParameter(ParameterDef("entry_point", |
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| 440 | "The entry point for the Cg program.", |
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| 441 | PT_STRING),&msCmdEntryPoint); |
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| 442 | dict->addParameter(ParameterDef("profiles", |
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| 443 | "Space-separated list of Cg profiles supported by this profile.", |
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| 444 | PT_STRING),&msCmdProfiles); |
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| 445 | dict->addParameter(ParameterDef("compile_arguments", |
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| 446 | "A string of compilation arguments to pass to the Cg compiler.", |
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| 447 | PT_STRING),&msCmdArgs); |
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| 448 | } |
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| 449 | |
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| 450 | } |
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| 451 | //----------------------------------------------------------------------- |
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| 452 | CgProgram::~CgProgram() |
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| 453 | { |
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| 454 | freeCgArgs(); |
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| 455 | // have to call this here reather than in Resource destructor |
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| 456 | // since calling virtual methods in base destructors causes crash |
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| 457 | if (isLoaded()) |
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| 458 | { |
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| 459 | unload(); |
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| 460 | } |
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| 461 | else |
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| 462 | { |
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| 463 | unloadHighLevel(); |
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| 464 | } |
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| 465 | } |
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| 466 | //----------------------------------------------------------------------- |
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| 467 | bool CgProgram::isSupported(void) const |
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| 468 | { |
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| 469 | if (mCompileError || !isRequiredCapabilitiesSupported()) |
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| 470 | return false; |
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| 471 | |
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| 472 | StringVector::const_iterator i, iend; |
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| 473 | iend = mProfiles.end(); |
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| 474 | // Check to see if any of the profiles are supported |
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| 475 | for (i = mProfiles.begin(); i != iend; ++i) |
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| 476 | { |
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| 477 | if (GpuProgramManager::getSingleton().isSyntaxSupported(*i)) |
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| 478 | { |
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| 479 | return true; |
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| 480 | } |
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| 481 | } |
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| 482 | return false; |
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| 483 | |
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| 484 | } |
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| 485 | //----------------------------------------------------------------------- |
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| 486 | void CgProgram::setProfiles(const StringVector& profiles) |
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| 487 | { |
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| 488 | mProfiles.clear(); |
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| 489 | StringVector::const_iterator i, iend; |
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| 490 | iend = profiles.end(); |
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| 491 | for (i = profiles.begin(); i != iend; ++i) |
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| 492 | { |
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| 493 | mProfiles.push_back(*i); |
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| 494 | } |
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| 495 | } |
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| 496 | |
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| 497 | //----------------------------------------------------------------------- |
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| 498 | const String& CgProgram::getLanguage(void) const |
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| 499 | { |
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| 500 | static const String language = "cg"; |
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| 501 | |
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| 502 | return language; |
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| 503 | } |
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| 504 | |
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| 505 | |
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| 506 | //----------------------------------------------------------------------- |
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| 507 | //----------------------------------------------------------------------- |
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| 508 | String CgProgram::CmdEntryPoint::doGet(const void *target) const |
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| 509 | { |
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| 510 | return static_cast<const CgProgram*>(target)->getEntryPoint(); |
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| 511 | } |
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| 512 | void CgProgram::CmdEntryPoint::doSet(void *target, const String& val) |
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| 513 | { |
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| 514 | static_cast<CgProgram*>(target)->setEntryPoint(val); |
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| 515 | } |
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| 516 | //----------------------------------------------------------------------- |
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| 517 | String CgProgram::CmdProfiles::doGet(const void *target) const |
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| 518 | { |
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| 519 | return StringConverter::toString( |
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| 520 | static_cast<const CgProgram*>(target)->getProfiles() ); |
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| 521 | } |
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| 522 | void CgProgram::CmdProfiles::doSet(void *target, const String& val) |
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| 523 | { |
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| 524 | static_cast<CgProgram*>(target)->setProfiles(StringUtil::split(val)); |
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| 525 | } |
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| 526 | //----------------------------------------------------------------------- |
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| 527 | String CgProgram::CmdArgs::doGet(const void *target) const |
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| 528 | { |
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| 529 | return static_cast<const CgProgram*>(target)->getCompileArguments(); |
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| 530 | } |
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| 531 | void CgProgram::CmdArgs::doSet(void *target, const String& val) |
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| 532 | { |
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| 533 | static_cast<CgProgram*>(target)->setCompileArguments(val); |
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| 534 | } |
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| 535 | |
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| 536 | } |
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