diff options
Diffstat (limited to 'indra/llrender/llshadermgr.cpp')
| -rw-r--r-- | indra/llrender/llshadermgr.cpp | 234 |
1 files changed, 195 insertions, 39 deletions
diff --git a/indra/llrender/llshadermgr.cpp b/indra/llrender/llshadermgr.cpp index 0f54ebeb69..e51ef8cfe7 100644 --- a/indra/llrender/llshadermgr.cpp +++ b/indra/llrender/llshadermgr.cpp @@ -2,31 +2,25 @@ * @file llshadermgr.cpp * @brief Shader manager implementation. * - * $LicenseInfo:firstyear=2005&license=viewergpl$ - * - * Copyright (c) 2005-2009, Linden Research, Inc. - * + * $LicenseInfo:firstyear=2005&license=viewerlgpl$ * Second Life Viewer Source Code - * The source code in this file ("Source Code") is provided by Linden Lab - * to you under the terms of the GNU General Public License, version 2.0 - * ("GPL"), unless you have obtained a separate licensing agreement - * ("Other License"), formally executed by you and Linden Lab. Terms of - * the GPL can be found in doc/GPL-license.txt in this distribution, or - * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2 + * Copyright (C) 2010, Linden Research, Inc. * - * There are special exceptions to the terms and conditions of the GPL as - * it is applied to this Source Code. View the full text of the exception - * in the file doc/FLOSS-exception.txt in this software distribution, or - * online at - * http://secondlifegrid.net/programs/open_source/licensing/flossexception + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. * - * By copying, modifying or distributing this software, you acknowledge - * that you have read and understood your obligations described above, - * and agree to abide by those obligations. + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. * - * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO - * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, - * COMPLETENESS OR PERFORMANCE. + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -215,17 +209,39 @@ BOOL LLShaderMgr::attachShaderFeatures(LLGLSLShader * shader) if (features->hasWaterFog) { - if (!shader->attachObject("lighting/lightWaterF.glsl")) + if (features->disableTextureIndex) { - return FALSE; + if (!shader->attachObject("lighting/lightWaterNonIndexedF.glsl")) + { + return FALSE; + } + } + else + { + if (!shader->attachObject("lighting/lightWaterF.glsl")) + { + return FALSE; + } + shader->mFeatures.mIndexedTextureChannels = gGLManager.mNumTextureImageUnits-1; } } else { - if (!shader->attachObject("lighting/lightF.glsl")) + if (features->disableTextureIndex) { - return FALSE; + if (!shader->attachObject("lighting/lightNonIndexedF.glsl")) + { + return FALSE; + } + } + else + { + if (!shader->attachObject("lighting/lightF.glsl")) + { + return FALSE; + } + shader->mFeatures.mIndexedTextureChannels = gGLManager.mNumTextureImageUnits-1; } } } @@ -234,27 +250,78 @@ BOOL LLShaderMgr::attachShaderFeatures(LLGLSLShader * shader) else if (features->isFullbright) { - if (features->hasWaterFog) + if (features->isShiny && features->hasWaterFog) { - if (!shader->attachObject("lighting/lightFullbrightWaterF.glsl")) + if (features->disableTextureIndex) { - return FALSE; + if (!shader->attachObject("lighting/lightFullbrightShinyWaterNonIndexedF.glsl")) + { + return FALSE; + } + } + else + { + if (!shader->attachObject("lighting/lightFullbrightShinyWaterF.glsl")) + { + return FALSE; + } + shader->mFeatures.mIndexedTextureChannels = gGLManager.mNumTextureImageUnits-1; + } + } + else if (features->hasWaterFog) + { + if (features->disableTextureIndex) + { + if (!shader->attachObject("lighting/lightFullbrightWaterNonIndexedF.glsl")) + { + return FALSE; + } + } + else + { + if (!shader->attachObject("lighting/lightFullbrightWaterF.glsl")) + { + return FALSE; + } + shader->mFeatures.mIndexedTextureChannels = gGLManager.mNumTextureImageUnits-1; } } else if (features->isShiny) { - if (!shader->attachObject("lighting/lightFullbrightShinyF.glsl")) + if (features->disableTextureIndex) { - return FALSE; + if (!shader->attachObject("lighting/lightFullbrightShinyNonIndexedF.glsl")) + { + return FALSE; + } + } + else + { + if (!shader->attachObject("lighting/lightFullbrightShinyF.glsl")) + { + return FALSE; + } + shader->mFeatures.mIndexedTextureChannels = gGLManager.mNumTextureImageUnits-1; } } else { - if (!shader->attachObject("lighting/lightFullbrightF.glsl")) + if (features->disableTextureIndex) { - return FALSE; + if (!shader->attachObject("lighting/lightFullbrightNonIndexedF.glsl")) + { + return FALSE; + } + } + else + { + if (!shader->attachObject("lighting/lightFullbrightF.glsl")) + { + return FALSE; + } + shader->mFeatures.mIndexedTextureChannels = gGLManager.mNumTextureImageUnits-1; } } } @@ -265,17 +332,39 @@ BOOL LLShaderMgr::attachShaderFeatures(LLGLSLShader * shader) if (features->hasWaterFog) { - if (!shader->attachObject("lighting/lightShinyWaterF.glsl")) + if (features->disableTextureIndex) { - return FALSE; + if (!shader->attachObject("lighting/lightShinyWaterNonIndexedF.glsl")) + { + return FALSE; + } + } + else + { + if (!shader->attachObject("lighting/lightShinyWaterF.glsl")) + { + return FALSE; + } + shader->mFeatures.mIndexedTextureChannels = gGLManager.mNumTextureImageUnits-1; } } else { - if (!shader->attachObject("lighting/lightShinyF.glsl")) + if (features->disableTextureIndex) { - return FALSE; + if (!shader->attachObject("lighting/lightShinyNonIndexedF.glsl")) + { + return FALSE; + } + } + else + { + if (!shader->attachObject("lighting/lightShinyF.glsl")) + { + return FALSE; + } + shader->mFeatures.mIndexedTextureChannels = gGLManager.mNumTextureImageUnits-1; } } } @@ -314,12 +403,12 @@ void LLShaderMgr::dumpObjectLog(GLhandleARB ret, BOOL warns) } else { - LL_DEBUGS("ShaderLoading") << log << LL_ENDL; + LL_INFOS("ShaderLoading") << log << LL_ENDL; } } } -GLhandleARB LLShaderMgr::loadShaderFile(const std::string& filename, S32 & shader_level, GLenum type) +GLhandleARB LLShaderMgr::loadShaderFile(const std::string& filename, S32 & shader_level, GLenum type, S32 texture_index_channels) { GLenum error = GL_NO_ERROR; if (gDebugGL) @@ -373,6 +462,73 @@ GLhandleARB LLShaderMgr::loadShaderFile(const std::string& filename, S32 & shade GLcharARB* text[1024]; GLuint count = 0; + //set version to 1.20 + text[count++] = strdup("#version 120\n"); + + //copy preprocessor definitions into buffer + for (std::map<std::string,std::string>::iterator iter = mDefinitions.begin(); iter != mDefinitions.end(); ++iter) + { + std::string define = "#define " + iter->first + " " + iter->second + "\n"; + text[count++] = (GLcharARB *) strdup(define.c_str()); + } + + if (texture_index_channels > 0 && type == GL_FRAGMENT_SHADER_ARB) + { + //use specified number of texture channels for indexed texture rendering + + /* prepend shader code that looks like this: + + uniform sampler2D tex0; + uniform sampler2D tex1; + uniform sampler2D tex2; + . + . + . + uniform sampler2D texN; + + varying float vary_texture_index; + + vec4 diffuseLookup(vec2 texcoord) + { + switch (int(vary_texture_index+0.25)) + { + case 0: return texture2D(tex0, texcoord); + case 1: return texture2D(tex1, texcoord); + case 2: return texture2D(tex2, texcoord); + . + . + . + case N: return texture2D(texN, texcoord); + } + + return vec4(0,0,0,0); + } + */ + + //uniform declartion + for (S32 i = 0; i < texture_index_channels; ++i) + { + std::string decl = llformat("uniform sampler2D tex%d;\n", i); + text[count++] = strdup(decl.c_str()); + } + + text[count++] = strdup("varying float vary_texture_index;\n"); + text[count++] = strdup("vec4 diffuseLookup(vec2 texcoord)\n"); + text[count++] = strdup("{\n"); + text[count++] = strdup("\tswitch (int(vary_texture_index+0.25))\n"); + text[count++] = strdup("\t{\n"); + + //switch body + for (S32 i = 0; i < texture_index_channels; ++i) + { + std::string case_str = llformat("\t\tcase %d: return texture2D(tex%d, texcoord);\n", i, i); + text[count++] = strdup(case_str.c_str()); + } + + text[count++] = strdup("\t}\n"); + text[count++] = strdup("\treturn vec4(0,0,0,0);\n"); + text[count++] = strdup("}\n"); + } //copy file into memory while( fgets((char *)buff, 1024, file) != NULL && count < LL_ARRAY_SIZE(buff) ) @@ -456,7 +612,7 @@ GLhandleARB LLShaderMgr::loadShaderFile(const std::string& filename, S32 & shade if (shader_level > 1) { shader_level--; - return loadShaderFile(filename,shader_level,type); + return loadShaderFile(filename,shader_level,type,texture_index_channels); } LL_WARNS("ShaderLoading") << "Failed to load " << filename << LL_ENDL; } |