[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 "OgreQuake3ShaderManager.h"
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| 26 | #include "OgreQuake3Shader.h"
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| 27 | #include "OgreStringVector.h"
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| 28 | #include "OgreException.h"
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| 29 |
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| 30 | namespace Ogre {
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| 31 |
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| 32 | //-----------------------------------------------------------------------
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| 33 | template<> Quake3ShaderManager *Singleton<Quake3ShaderManager>::ms_Singleton = 0;
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| 34 | Quake3ShaderManager* Quake3ShaderManager::getSingletonPtr(void)
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| 35 | {
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| 36 | return ms_Singleton;
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| 37 | }
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| 38 | Quake3ShaderManager& Quake3ShaderManager::getSingleton(void)
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| 39 | {
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| 40 | assert( ms_Singleton ); return ( *ms_Singleton );
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| 41 | }
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| 42 | //-----------------------------------------------------------------------
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| 43 |
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| 44 | //-----------------------------------------------------------------------
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| 45 | Quake3ShaderManager::Quake3ShaderManager()
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| 46 | {
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| 47 | mScriptPatterns.push_back("*.shader");
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| 48 | ResourceGroupManager::getSingleton()._registerScriptLoader(this);
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| 49 | }
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| 50 | //-----------------------------------------------------------------------
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| 51 | Quake3ShaderManager::~Quake3ShaderManager()
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| 52 | {
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| 53 | // delete all shaders
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| 54 | clear();
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| 55 | ResourceGroupManager::getSingleton()._unregisterScriptLoader(this);
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| 56 | }
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| 57 | //-----------------------------------------------------------------------
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| 58 | const StringVector& Quake3ShaderManager::getScriptPatterns(void) const
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| 59 | {
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| 60 | return mScriptPatterns;
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| 61 | }
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| 62 | //-----------------------------------------------------------------------
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| 63 | Real Quake3ShaderManager::getLoadingOrder(void) const
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| 64 | {
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| 65 | return 110.0f;
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| 66 | }
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| 67 | //-----------------------------------------------------------------------
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| 68 | void Quake3ShaderManager::clear(void)
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| 69 | {
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| 70 | for (Quake3ShaderMap::iterator i = mShaderMap.begin();
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| 71 | i != mShaderMap.end(); ++i)
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| 72 | {
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| 73 | delete i->second;
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| 74 | }
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| 75 | mShaderMap.clear();
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| 76 | }
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| 77 | //-----------------------------------------------------------------------
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| 78 | Quake3Shader* Quake3ShaderManager::getByName(const String& name)
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| 79 | {
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| 80 | Quake3ShaderMap::iterator i = mShaderMap.find(name);
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| 81 | if (i == mShaderMap.end())
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| 82 | {
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| 83 | return 0;
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| 84 | }
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| 85 | return i->second;
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| 86 | }
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| 87 | //-----------------------------------------------------------------------
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| 88 | void Quake3ShaderManager::parseScript(DataStreamPtr& stream, const String& group)
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| 89 | {
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| 90 | String line;
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| 91 | Quake3Shader* pShader;
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| 92 | char tempBuf[512];
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| 93 |
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| 94 | pShader = 0;
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| 95 | bool dummy = false;
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| 96 |
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| 97 | while(!stream->eof())
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| 98 | {
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| 99 | line = stream->getLine();
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| 100 | // Ignore comments & blanks
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| 101 | if (!(line.length() == 0 || line.substr(0,2) == "//"))
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| 102 | {
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| 103 | if (pShader == 0)
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| 104 | {
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| 105 | // No current shader
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| 106 | if (getByName(line) == 0)
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| 107 | {
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| 108 | dummy = false;
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| 109 | }
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| 110 | else
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| 111 | {
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| 112 | // Defined before, parse but ignore
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| 113 | // Q3A has duplicates in shaders, doh
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| 114 | dummy = true;
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| 115 | }
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| 116 |
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| 117 | // So first valid data should be a shader name
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| 118 | pShader = create(line);
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| 119 | // Skip to and over next {
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| 120 | stream->readLine(tempBuf, 511, "{");
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| 121 | }
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| 122 | else
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| 123 | {
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| 124 | // Already in a shader
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| 125 | if (line == "}")
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| 126 | {
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| 127 | // Finished shader
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| 128 | if (dummy && pShader)
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| 129 | {
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| 130 | delete pShader;
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| 131 | }
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| 132 | pShader = 0;
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| 133 | }
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| 134 | else if (line == "{")
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| 135 | {
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| 136 | // new pass
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| 137 | parseNewShaderPass(stream, pShader);
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| 138 |
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| 139 | }
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| 140 | else
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| 141 | {
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| 142 | // Attribute
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| 143 | StringUtil::toLowerCase(line);
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| 144 | parseShaderAttrib(line, pShader);
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| 145 | }
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| 146 |
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| 147 | }
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| 148 |
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| 149 | }
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| 150 |
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| 151 |
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| 152 | }
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| 153 |
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| 154 | }
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| 155 | //-----------------------------------------------------------------------
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| 156 | Quake3Shader* Quake3ShaderManager::create( const String& name)
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| 157 | {
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| 158 | // Gah, Q3A shader scripts include some duplicates - grr
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| 159 | Quake3Shader* s = new Quake3Shader(name);
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| 160 | if (mShaderMap.find(name) == mShaderMap.end())
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| 161 | {
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| 162 | mShaderMap[name] = s;
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| 163 | }
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| 164 | else
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| 165 | {
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| 166 | // deliberately ignore, will get parsed again but will not be used
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| 167 | }
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| 168 | return s;
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| 169 | }
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| 170 | //-----------------------------------------------------------------------
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| 171 | void Quake3ShaderManager::parseNewShaderPass(DataStreamPtr& stream, Quake3Shader* pShader)
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| 172 | {
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| 173 | String line;
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| 174 | int passIdx;
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| 175 |
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| 176 | passIdx = pShader->numPasses;
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| 177 | pShader->numPasses++;
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| 178 | pShader->pass.resize(pShader->numPasses);
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| 179 |
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| 180 | // Default pass details
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| 181 | pShader->pass[passIdx].animNumFrames = 0;
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| 182 | pShader->pass[passIdx].blend = LBO_REPLACE;
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| 183 | pShader->pass[passIdx].blendDest = SBF_ZERO;
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| 184 | pShader->pass[passIdx].blendSrc = SBF_ONE;
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| 185 | pShader->pass[passIdx].depthFunc = CMPF_LESS_EQUAL;
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| 186 | pShader->pass[passIdx].flags = 0;
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| 187 | pShader->pass[passIdx].rgbGenFunc = SHADER_GEN_IDENTITY;
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| 188 | pShader->pass[passIdx].tcModRotate = 0;
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| 189 | pShader->pass[passIdx].tcModScale[0] = pShader->pass[passIdx].tcModScale[1] = 1.0;
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| 190 | pShader->pass[passIdx].tcModScroll[0] = pShader->pass[passIdx].tcModScroll[1] = 0;
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| 191 | pShader->pass[passIdx].tcModStretchWave = SHADER_FUNC_NONE;
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| 192 | pShader->pass[passIdx].tcModTransform[0] = pShader->pass[passIdx].tcModTransform[1] = 0;
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| 193 | pShader->pass[passIdx].tcModTurbOn = false;
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| 194 | pShader->pass[passIdx].tcModTurb[0] = pShader->pass[passIdx].tcModTurb[1] =
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| 195 | pShader->pass[passIdx].tcModTurb[2] = pShader->pass[passIdx].tcModTurb[3] = 0;
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| 196 | pShader->pass[passIdx].texGen = TEXGEN_BASE;
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| 197 | pShader->pass[passIdx].addressMode = TextureUnitState::TAM_WRAP;
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| 198 | pShader->pass[passIdx].customBlend = false;
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| 199 | pShader->pass[passIdx].alphaVal = 0;
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| 200 | pShader->pass[passIdx].alphaFunc = CMPF_ALWAYS_PASS;
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| 201 |
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| 202 | while (!stream->eof())
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| 203 | {
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| 204 | line = stream->getLine();
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| 205 | // Ignore comments & blanks
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| 206 | if (line.length() != 0 && line.substr(0,2) != "//")
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| 207 | {
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| 208 | if (line == "}")
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| 209 | {
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| 210 | // end of shader
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| 211 | return;
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| 212 | }
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| 213 | else
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| 214 | {
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| 215 | parseShaderPassAttrib(line, pShader, &pShader->pass[passIdx]);
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| 216 | }
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| 217 | }
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| 218 |
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| 219 |
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| 220 | }
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| 221 | }
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| 222 | //-----------------------------------------------------------------------
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| 223 | void Quake3ShaderManager::parseShaderAttrib( const String& line, Quake3Shader* pShader)
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| 224 | {
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| 225 | StringVector vecparams;
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| 226 |
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| 227 | vecparams = StringUtil::split(line, " \t");
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| 228 | StringVector::iterator params = vecparams.begin();
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| 229 |
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| 230 | if (params[0] == "skyparms")
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| 231 | {
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| 232 | if (params[1] != "-")
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| 233 | {
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| 234 | pShader->farbox = true;
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| 235 | pShader->farboxName = params[1];
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| 236 | }
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| 237 | if (params[2] != "-")
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| 238 | {
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| 239 | pShader->skyDome = true;
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| 240 | pShader->cloudHeight = atof(params[2].c_str());
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| 241 | }
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| 242 | // nearbox not supported
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| 243 | }
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| 244 | else if (params[0] == "cull")
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| 245 | {
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| 246 | if (params[1] == "disable" || params[1] == "none")
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| 247 | {
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| 248 | pShader->cullMode = MANUAL_CULL_NONE;
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| 249 | }
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| 250 | else if (params[1] == "front")
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| 251 | {
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| 252 | pShader->cullMode = MANUAL_CULL_FRONT;
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| 253 | }
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| 254 | else if (params[1] == "back")
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| 255 | {
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| 256 | pShader->cullMode = MANUAL_CULL_BACK;
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| 257 | }
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| 258 | }
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| 259 | else if (params[0] == "deformvertexes")
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| 260 | {
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| 261 | // TODO
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| 262 | }
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| 263 | else if (params[0] == "fogparms")
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| 264 | {
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| 265 | Real r,g,b;
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| 266 | r = atof(params[1].c_str());
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| 267 | g = atof(params[2].c_str());
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| 268 | b = atof(params[3].c_str());
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| 269 | pShader->fog = true;
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| 270 | pShader->fogColour = ColourValue(r,g,b);
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| 271 | pShader->fogDistance = atof(params[4].c_str());
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| 272 |
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| 273 | }
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| 274 | }
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| 275 | //-----------------------------------------------------------------------
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| 276 | void Quake3ShaderManager::parseShaderPassAttrib( const String& line, Quake3Shader* pShader, Quake3Shader::Pass* pPass)
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| 277 | {
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| 278 | StringVector vecparams;
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| 279 |
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| 280 | vecparams = StringUtil::split(line, " \t");
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| 281 | StringVector::iterator params = vecparams.begin();
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| 282 |
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| 283 | StringUtil::toLowerCase(params[0]);
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| 284 | if (params[0] != "map" && params[0] != "clampmap" && params[0] != "animmap")
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| 285 | {
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| 286 | // lower case all except textures
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| 287 | for (size_t i = 1; i < vecparams.size(); ++i)
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| 288 | StringUtil::toLowerCase(params[i]);
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| 289 | }
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| 290 |
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| 291 |
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| 292 | // MAP
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| 293 | if (params[0] == "map")
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| 294 | {
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| 295 | pPass->textureName = params[1];
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| 296 | StringUtil::toLowerCase(params[1]);
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| 297 | if (params[1] == "$lightmap")
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| 298 | pPass->texGen = TEXGEN_LIGHTMAP;
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| 299 | }
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| 300 | // CLAMPMAP
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| 301 | if (params[0] == "clampmap")
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| 302 | {
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| 303 | pPass->textureName = params[1];
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| 304 | StringUtil::toLowerCase(params[1]);
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| 305 | if (params[1] == "$lightmap")
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| 306 | pPass->texGen = TEXGEN_LIGHTMAP;
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| 307 | pPass->addressMode = TextureUnitState::TAM_CLAMP;
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| 308 | }
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| 309 | // ANIMMAP
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| 310 | else if (params[0] == "animmap")
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| 311 | {
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| 312 | pPass->animFps = atof(params[1].c_str());
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| 313 | pPass->animNumFrames = static_cast<unsigned int>( vecparams.size() - 2 );
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| 314 | for (unsigned int frame = 0; frame < pPass->animNumFrames; ++frame)
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| 315 | {
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| 316 | pPass->frames[frame] = params[frame+2];
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| 317 | }
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| 318 | }
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| 319 | // BLENDFUNC
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| 320 | else if (params[0] == "blendfunc")
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| 321 | {
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| 322 | if (params[1] == "add" || params[1] == "gl_add")
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| 323 | {
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| 324 | pPass->blend = LBO_ADD;
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| 325 | pPass->blendDest = SBF_ONE;
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| 326 | pPass->blendSrc = SBF_ONE;
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| 327 | }
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| 328 | else if (params[1] == "filter" || params[1] == "gl_filter")
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| 329 | {
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| 330 | pPass->blend = LBO_MODULATE;
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| 331 | pPass->blendDest = SBF_ZERO;
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| 332 | pPass->blendSrc = SBF_DEST_COLOUR;
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| 333 | }
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| 334 | else if (params[1] == "blend" || params[1] == "gl_blend")
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| 335 | {
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| 336 | pPass->blend = LBO_ALPHA_BLEND;
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| 337 | pPass->blendDest = SBF_ONE_MINUS_SOURCE_ALPHA;
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| 338 | pPass->blendSrc = SBF_SOURCE_ALPHA;
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| 339 | }
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| 340 | else
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| 341 | {
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| 342 | // Manual blend
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| 343 | pPass->blendSrc = convertBlendFunc(params[1]);
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| 344 | pPass->blendDest = convertBlendFunc(params[2]);
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| 345 | // Detect common blends
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| 346 | if (pPass->blendSrc == SBF_ONE && pPass->blendDest == SBF_ZERO)
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| 347 | pPass->blend = LBO_REPLACE;
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| 348 | else if (pPass->blendSrc == SBF_ONE && pPass->blendDest == SBF_ONE)
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| 349 | pPass->blend = LBO_ADD;
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| 350 | else if ((pPass->blendSrc == SBF_ZERO && pPass->blendDest == SBF_SOURCE_COLOUR) ||
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| 351 | (pPass->blendSrc == SBF_DEST_COLOUR && pPass->blendDest == SBF_ZERO))
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| 352 | pPass->blend = LBO_MODULATE;
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| 353 | else if (pPass->blendSrc == SBF_SOURCE_ALPHA && pPass->blendDest == SBF_ONE_MINUS_SOURCE_ALPHA)
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| 354 | pPass->blend = LBO_ALPHA_BLEND;
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| 355 | else
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| 356 | pPass->customBlend = true;
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| 357 |
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| 358 |
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| 359 | // NB other custom blends might not work due to OGRE trying to use multitexture over multipass
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| 360 | }
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| 361 | }
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| 362 | // RGBGEN
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| 363 | else if (params[0] == "rgbgen")
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| 364 | {
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| 365 | // TODO
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| 366 | }
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| 367 | // ALPHAGEN
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| 368 | else if (params[0] == "alphagen")
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| 369 | {
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| 370 | // TODO
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| 371 | }
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| 372 | // TCGEN
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| 373 | else if (params[0] == "tcgen")
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| 374 | {
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| 375 | if (params[1] == "base")
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| 376 | {
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| 377 | pPass->texGen = TEXGEN_BASE;
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| 378 | }
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| 379 | else if (params[1] == "lightmap")
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| 380 | {
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| 381 | pPass->texGen = TEXGEN_LIGHTMAP;
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| 382 | }
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| 383 | else if (params[1] == "environment")
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| 384 | {
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| 385 | pPass->texGen = TEXGEN_ENVIRONMENT;
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| 386 | }
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| 387 | }
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| 388 | // TCMOD
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| 389 | else if (params[0] == "tcmod")
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| 390 | {
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| 391 | if (params[1] == "rotate")
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| 392 | {
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| 393 | pPass->tcModRotate = -atof(params[2].c_str()) / 360; // +ve is clockwise degrees in Q3 shader, anticlockwise complete rotations in Ogre
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| 394 | }
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| 395 | else if (params[1] == "scroll")
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| 396 | {
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| 397 | pPass->tcModScroll[0] = atof(params[2].c_str());
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| 398 | pPass->tcModScroll[1] = atof(params[3].c_str());
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| 399 | }
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| 400 | else if (params[1] == "scale")
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| 401 | {
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| 402 | pPass->tcModScale[0] = atof(params[2].c_str());
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| 403 | pPass->tcModScale[1] = atof(params[3].c_str());
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| 404 | }
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| 405 | else if (params[1] == "stretch")
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| 406 | {
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| 407 | if (params[2] == "sin")
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| 408 | pPass->tcModStretchWave = SHADER_FUNC_SIN;
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| 409 | else if (params[2] == "triangle")
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| 410 | pPass->tcModStretchWave = SHADER_FUNC_TRIANGLE;
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| 411 | else if (params[2] == "square")
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| 412 | pPass->tcModStretchWave = SHADER_FUNC_SQUARE;
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| 413 | else if (params[2] == "sawtooth")
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| 414 | pPass->tcModStretchWave = SHADER_FUNC_SAWTOOTH;
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| 415 | else if (params[2] == "inversesawtooth")
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| 416 | pPass->tcModStretchWave = SHADER_FUNC_INVERSESAWTOOTH;
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| 417 |
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| 418 | pPass->tcModStretchParams[0] = atof(params[3].c_str());
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| 419 | pPass->tcModStretchParams[1] = atof(params[4].c_str());
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| 420 | pPass->tcModStretchParams[2] = atof(params[5].c_str());
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| 421 | pPass->tcModStretchParams[3] = atof(params[6].c_str());
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| 422 |
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| 423 | }
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| 424 | }
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| 425 | // TURB
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| 426 | else if (params[0] == "turb")
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| 427 | {
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| 428 | pPass->tcModTurbOn = true;
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| 429 | pPass->tcModTurb[0] = atof(params[2].c_str());
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| 430 | pPass->tcModTurb[1] = atof(params[3].c_str());
|
---|
| 431 | pPass->tcModTurb[2] = atof(params[4].c_str());
|
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| 432 | pPass->tcModTurb[3] = atof(params[5].c_str());
|
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| 433 | }
|
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| 434 | // DEPTHFUNC
|
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| 435 | else if (params[0] == "depthfunc")
|
---|
| 436 | {
|
---|
| 437 | // TODO
|
---|
| 438 | }
|
---|
| 439 | // DEPTHWRITE
|
---|
| 440 | else if (params[0] == "depthwrite")
|
---|
| 441 | {
|
---|
| 442 | // TODO
|
---|
| 443 | }
|
---|
| 444 | // ALPHAFUNC
|
---|
| 445 | else if (params[0] == "alphafunc")
|
---|
| 446 | {
|
---|
| 447 | if (params[1] == "gt0")
|
---|
| 448 | {
|
---|
| 449 | pPass->alphaVal = 0;
|
---|
| 450 | pPass->alphaFunc = CMPF_GREATER;
|
---|
| 451 | }
|
---|
| 452 | else if (params[1] == "ge128")
|
---|
| 453 | {
|
---|
| 454 | pPass->alphaVal = 128;
|
---|
| 455 | pPass->alphaFunc = CMPF_GREATER_EQUAL;
|
---|
| 456 | }
|
---|
| 457 | else if (params[1] == "lt128")
|
---|
| 458 | {
|
---|
| 459 | pPass->alphaVal = 128;
|
---|
| 460 | pPass->alphaFunc = CMPF_LESS;
|
---|
| 461 | }
|
---|
| 462 | }
|
---|
| 463 |
|
---|
| 464 |
|
---|
| 465 |
|
---|
| 466 | }
|
---|
| 467 | //-----------------------------------------------------------------------
|
---|
| 468 | SceneBlendFactor Quake3ShaderManager::convertBlendFunc( const String& q3func)
|
---|
| 469 | {
|
---|
| 470 | if (q3func == "gl_one")
|
---|
| 471 | {
|
---|
| 472 | return SBF_ONE;
|
---|
| 473 | }
|
---|
| 474 | else if (q3func == "gl_zero")
|
---|
| 475 | {
|
---|
| 476 | return SBF_ZERO;
|
---|
| 477 | }
|
---|
| 478 | else if (q3func == "gl_dst_color")
|
---|
| 479 | {
|
---|
| 480 | return SBF_DEST_COLOUR;
|
---|
| 481 | }
|
---|
| 482 | else if (q3func == "gl_src_color")
|
---|
| 483 | {
|
---|
| 484 | return SBF_SOURCE_COLOUR;
|
---|
| 485 | }
|
---|
| 486 | else if (q3func == "gl_one_minus_dest_color")
|
---|
| 487 | {
|
---|
| 488 | return SBF_ONE_MINUS_DEST_COLOUR;
|
---|
| 489 | }
|
---|
| 490 | else if (q3func == "gl_src_alpha")
|
---|
| 491 | {
|
---|
| 492 | return SBF_SOURCE_ALPHA;
|
---|
| 493 | }
|
---|
| 494 | else if (q3func == "gl_one_minus_src_alpha")
|
---|
| 495 | {
|
---|
| 496 | return SBF_ONE_MINUS_SOURCE_ALPHA;
|
---|
| 497 | }
|
---|
| 498 |
|
---|
| 499 | // Default if unrecognised
|
---|
| 500 | return SBF_ONE;
|
---|
| 501 |
|
---|
| 502 | }
|
---|
| 503 |
|
---|
| 504 | }
|
---|