[692] | 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) 2000-2005 The OGRE Team
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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 | */
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| 25 | #include "OgreCgProgram.h"
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| 26 | #include "OgreGpuProgramManager.h"
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| 27 | #include "OgreStringConverter.h"
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| 28 | #include "OgreRoot.h"
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| 29 | #include "OgreRenderSystem.h"
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| 30 | #include "OgreRenderSystemCapabilities.h"
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| 31 | #include "OgreLogManager.h"
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| 32 |
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| 33 | namespace Ogre {
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| 34 | //-----------------------------------------------------------------------
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| 35 | CgProgram::CmdEntryPoint CgProgram::msCmdEntryPoint;
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| 36 | CgProgram::CmdProfiles CgProgram::msCmdProfiles;
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| 37 | CgProgram::CmdArgs CgProgram::msCmdArgs;
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| 38 | //-----------------------------------------------------------------------
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| 39 | void CgProgram::selectProfile(void)
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| 40 | {
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| 41 | mSelectedProfile = "";
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| 42 | mSelectedCgProfile = CG_PROFILE_UNKNOWN;
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| 43 |
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| 44 | StringVector::iterator i, iend;
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| 45 | iend = mProfiles.end();
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| 46 | GpuProgramManager& gpuMgr = GpuProgramManager::getSingleton();
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| 47 | for (i = mProfiles.begin(); i != iend; ++i)
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| 48 | {
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| 49 | if (gpuMgr.isSyntaxSupported(*i))
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| 50 | {
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| 51 | mSelectedProfile = *i;
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| 52 | mSelectedCgProfile = cgGetProfile(mSelectedProfile.c_str());
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| 53 | // Check for errors
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| 54 | checkForCgError("CgProgram::selectProfile",
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| 55 | "Unable to find CG profile enum for program " + mName + ": ", mCgContext);
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| 56 | break;
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| 57 | }
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| 58 | }
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| 59 | }
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| 60 | //-----------------------------------------------------------------------
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| 61 | void CgProgram::buildArgs(void)
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| 62 | {
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| 63 | StringVector args;
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| 64 | if (!mCompileArgs.empty())
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| 65 | args = StringUtil::split(mCompileArgs);
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| 66 |
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| 67 | StringVector::const_iterator i;
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| 68 | if (mSelectedCgProfile == CG_PROFILE_VS_1_1)
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| 69 | {
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| 70 | // Need the 'dcls' argument whenever we use this profile
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| 71 | // otherwise compilation of the assembler will fail
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| 72 | bool dclsFound = false;
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| 73 | for (i = args.begin(); i != args.end(); ++i)
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| 74 | {
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| 75 | if (*i == "dcls")
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| 76 | {
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| 77 | dclsFound = true;
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| 78 | break;
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| 79 | }
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| 80 | }
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| 81 | if (!dclsFound)
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| 82 | {
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| 83 | args.push_back("-profileopts");
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| 84 | args.push_back("dcls");
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| 85 | }
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| 86 | }
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| 87 | // Now split args into that god-awful char** that Cg insists on
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| 88 | freeCgArgs();
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| 89 | mCgArguments = new char*[args.size() + 1];
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| 90 | int index = 0;
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| 91 | for (i = args.begin(); i != args.end(); ++i, ++index)
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| 92 | {
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| 93 | mCgArguments[index] = new char[i->length() + 1];
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| 94 | strcpy(mCgArguments[index], i->c_str());
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| 95 | }
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| 96 | // Null terminate list
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| 97 | mCgArguments[index] = 0;
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| 98 |
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| 99 |
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| 100 | }
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| 101 | //-----------------------------------------------------------------------
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| 102 | void CgProgram::freeCgArgs(void)
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| 103 | {
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| 104 | if (mCgArguments)
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| 105 | {
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| 106 | size_t index = 0;
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| 107 | char* current = mCgArguments[index];
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| 108 | while (current)
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| 109 | {
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| 110 | delete [] current;
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| 111 | current = mCgArguments[++index];
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| 112 | }
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| 113 | delete [] mCgArguments;
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| 114 | mCgArguments = 0;
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| 115 | }
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| 116 | }
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| 117 | //-----------------------------------------------------------------------
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| 118 | void CgProgram::loadFromSource(void)
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| 119 | {
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| 120 | // Create Cg Program
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| 121 | selectProfile();
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| 122 | if (mSelectedCgProfile == CG_PROFILE_UNKNOWN)
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| 123 | {
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| 124 | LogManager::getSingleton().logMessage(
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| 125 | "Attempted to load Cg program '" + mName + "', but no suported "
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| 126 | "profile was found. ");
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| 127 | return;
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| 128 | }
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| 129 | buildArgs();
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| 130 | mCgProgram = cgCreateProgram(mCgContext, CG_SOURCE, mSource.c_str(),
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| 131 | mSelectedCgProfile, mEntryPoint.c_str(), const_cast<const char**>(mCgArguments));
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| 132 |
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| 133 | // Test
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| 134 | //LogManager::getSingleton().logMessage(cgGetProgramString(mCgProgram, CG_COMPILED_PROGRAM));
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| 135 |
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| 136 | // Check for errors
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| 137 | checkForCgError("CgProgram::loadFromSource",
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| 138 | "Unable to compile Cg program " + mName + ": ", mCgContext);
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| 139 |
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| 140 | }
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| 141 | //-----------------------------------------------------------------------
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| 142 | void CgProgram::createLowLevelImpl(void)
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| 143 | {
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| 144 | // ignore any previous error
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| 145 | if (mSelectedCgProfile != CG_PROFILE_UNKNOWN)
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| 146 | {
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| 147 |
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| 148 | // Create a low-level program, give it the same name as us
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| 149 | mAssemblerProgram =
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| 150 | GpuProgramManager::getSingleton().createProgramFromString(
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| 151 | mName,
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| 152 | mGroup,
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| 153 | cgGetProgramString(mCgProgram, CG_COMPILED_PROGRAM),
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| 154 | mType,
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| 155 | mSelectedProfile);
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| 156 | }
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| 157 | }
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| 158 | //-----------------------------------------------------------------------
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| 159 | void CgProgram::unloadHighLevelImpl(void)
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| 160 | {
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| 161 | // Unload Cg Program
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| 162 | // Lowlevel program will get unloaded elsewhere
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| 163 | if (mCgProgram)
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| 164 | {
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| 165 | cgDestroyProgram(mCgProgram);
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| 166 | checkForCgError("CgProgram::unloadImpl",
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| 167 | "Error while unloading Cg program " + mName + ": ",
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| 168 | mCgContext);
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| 169 | mCgProgram = 0;
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| 170 | }
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| 171 | }
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| 172 | //-----------------------------------------------------------------------
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| 173 | void CgProgram::populateParameterNames(GpuProgramParametersSharedPtr params)
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| 174 | {
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| 175 | // Derive parameter names from Cg
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| 176 | assert(mCgProgram && "Cg program not loaded!");
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| 177 | // Note use of 'leaf' format so we only get bottom-level params, not structs
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| 178 | CGparameter parameter = cgGetFirstLeafParameter(mCgProgram, CG_PROGRAM);
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| 179 | while (parameter != 0)
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| 180 | {
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| 181 | // Look for uniform (non-sampler) parameters only
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| 182 | // Don't bother enumerating unused parameters, especially since they will
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| 183 | // be optimised out and therefore not in the indexed versions
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| 184 | CGtype paramType = cgGetParameterType(parameter);
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| 185 |
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| 186 | // *** test
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| 187 | //String tempName = cgGetParameterName(parameter);
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| 188 | //size_t tempindex = cgGetParameterResourceIndex(parameter);
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| 189 | //LogManager::getSingleton().logMessage(
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| 190 | // tempName + " -> " + StringConverter::toString(tempindex));
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| 191 |
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| 192 | // *** end test
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| 193 |
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| 194 | if (cgGetParameterVariability(parameter) == CG_UNIFORM &&
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| 195 | paramType != CG_SAMPLER1D &&
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| 196 | paramType != CG_SAMPLER2D &&
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| 197 | paramType != CG_SAMPLER3D &&
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| 198 | paramType != CG_SAMPLERCUBE &&
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| 199 | paramType != CG_SAMPLERRECT &&
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| 200 | cgGetParameterDirection(parameter) != CG_OUT &&
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| 201 | cgIsParameterReferenced(parameter))
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| 202 | {
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| 203 | String paramName = cgGetParameterName(parameter);
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| 204 | size_t index = cgGetParameterResourceIndex(parameter);
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| 205 |
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| 206 | // Get the parameter resource, so we know what type we're dealing with
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| 207 | CGresource res = cgGetParameterResource(parameter);
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| 208 | switch (res)
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| 209 | {
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| 210 | case CG_COMBINER_STAGE_CONST0:
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| 211 | // register combiner, const 0
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| 212 | // the index relates to the texture stage; store this as (stage * 2) + 0
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| 213 | index = index * 2;
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| 214 | break;
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| 215 | case CG_COMBINER_STAGE_CONST1:
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| 216 | // register combiner, const 1
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| 217 | // the index relates to the texture stage; store this as (stage * 2) + 1
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| 218 | index = (index * 2) + 1;
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| 219 | break;
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| 220 | default:
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| 221 | // do nothing, normal constant
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| 222 | break;
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| 223 | };
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| 224 | params->_mapParameterNameToIndex(paramName, index);
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| 225 | // setup constant definition
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| 226 | // is it float or int
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| 227 | GpuProgramParameters::ElementType elementType = GpuProgramParameters::ET_INT;
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| 228 | // NOTE: all float enums are grouped together and occur before CG_INT which is the first of the int enums
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| 229 | // CG_FIXED1 is the last float type
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| 230 | if (paramType <= CG_FIXED1)
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| 231 | elementType = GpuProgramParameters::ET_REAL;
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| 232 | params->addConstantDefinition(paramName, index, 0, elementType);
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| 233 | }
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| 234 | // Get next
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| 235 | parameter = cgGetNextLeafParameter(parameter);
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| 236 | }
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| 237 |
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| 238 |
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| 239 | }
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| 240 | //-----------------------------------------------------------------------
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| 241 | CgProgram::CgProgram(ResourceManager* creator, const String& name,
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| 242 | ResourceHandle handle, const String& group, bool isManual,
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| 243 | ManualResourceLoader* loader, CGcontext context)
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| 244 | : HighLevelGpuProgram(creator, name, handle, group, isManual, loader),
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| 245 | mCgContext(context), mCgProgram(0),
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| 246 | mSelectedCgProfile(CG_PROFILE_UNKNOWN), mCgArguments(0)
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| 247 | {
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| 248 | if (createParamDictionary("CgProgram"))
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| 249 | {
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| 250 | setupBaseParamDictionary();
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| 251 |
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| 252 | ParamDictionary* dict = getParamDictionary();
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| 253 |
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| 254 | dict->addParameter(ParameterDef("entry_point",
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| 255 | "The entry point for the Cg program.",
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| 256 | PT_STRING),&msCmdEntryPoint);
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| 257 | dict->addParameter(ParameterDef("profiles",
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| 258 | "Space-separated list of Cg profiles supported by this profile.",
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| 259 | PT_STRING),&msCmdProfiles);
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| 260 | dict->addParameter(ParameterDef("compile_arguments",
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| 261 | "A string of compilation arguments to pass to the Cg compiler.",
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| 262 | PT_STRING),&msCmdArgs);
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| 263 | }
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| 264 |
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| 265 | }
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| 266 | //-----------------------------------------------------------------------
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| 267 | CgProgram::~CgProgram()
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| 268 | {
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| 269 | freeCgArgs();
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| 270 | // have to call this here reather than in Resource destructor
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| 271 | // since calling virtual methods in base destructors causes crash
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| 272 | if (mIsLoaded)
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| 273 | {
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| 274 | unload();
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| 275 | }
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| 276 | else
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| 277 | {
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| 278 | unloadHighLevel();
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| 279 | }
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| 280 | }
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| 281 | //-----------------------------------------------------------------------
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| 282 | bool CgProgram::isSupported(void) const
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| 283 | {
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| 284 | // If skeletal animation is being done, we need support for UBYTE4
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| 285 | if (isSkeletalAnimationIncluded() &&
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| 286 | !Root::getSingleton().getRenderSystem()->getCapabilities()
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| 287 | ->hasCapability(RSC_VERTEX_FORMAT_UBYTE4))
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| 288 | {
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| 289 | return false;
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| 290 | }
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| 291 |
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| 292 | StringVector::const_iterator i, iend;
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| 293 | iend = mProfiles.end();
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| 294 | // Check to see if any of the profiles are supported
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| 295 | for (i = mProfiles.begin(); i != iend; ++i)
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| 296 | {
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| 297 | if (GpuProgramManager::getSingleton().isSyntaxSupported(*i))
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| 298 | {
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| 299 | return true;
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| 300 | }
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| 301 | }
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| 302 | return false;
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| 303 |
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| 304 | }
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| 305 | //-----------------------------------------------------------------------
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| 306 | void CgProgram::setProfiles(const StringVector& profiles)
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| 307 | {
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| 308 | mProfiles.clear();
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| 309 | StringVector::const_iterator i, iend;
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| 310 | iend = profiles.end();
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| 311 | for (i = profiles.begin(); i != iend; ++i)
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| 312 | {
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| 313 | mProfiles.push_back(*i);
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| 314 | }
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| 315 | }
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| 316 |
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| 317 | //-----------------------------------------------------------------------
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| 318 | const String& CgProgram::getLanguage(void) const
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| 319 | {
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| 320 | static const String language = "cg";
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| 321 |
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| 322 | return language;
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| 323 | }
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| 324 |
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| 325 |
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| 326 | //-----------------------------------------------------------------------
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| 327 | //-----------------------------------------------------------------------
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| 328 | String CgProgram::CmdEntryPoint::doGet(const void *target) const
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| 329 | {
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| 330 | return static_cast<const CgProgram*>(target)->getEntryPoint();
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| 331 | }
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| 332 | void CgProgram::CmdEntryPoint::doSet(void *target, const String& val)
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| 333 | {
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| 334 | static_cast<CgProgram*>(target)->setEntryPoint(val);
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| 335 | }
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| 336 | //-----------------------------------------------------------------------
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| 337 | String CgProgram::CmdProfiles::doGet(const void *target) const
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| 338 | {
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| 339 | return StringConverter::toString(
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| 340 | static_cast<const CgProgram*>(target)->getProfiles() );
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| 341 | }
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| 342 | void CgProgram::CmdProfiles::doSet(void *target, const String& val)
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| 343 | {
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| 344 | static_cast<CgProgram*>(target)->setProfiles(StringUtil::split(val));
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| 345 | }
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| 346 | //-----------------------------------------------------------------------
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| 347 | String CgProgram::CmdArgs::doGet(const void *target) const
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| 348 | {
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| 349 | return static_cast<const CgProgram*>(target)->getCompileArguments();
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| 350 | }
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| 351 | void CgProgram::CmdArgs::doSet(void *target, const String& val)
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| 352 | {
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| 353 | static_cast<CgProgram*>(target)->setCompileArguments(val);
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| 354 | }
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| 355 |
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| 356 | }
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