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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