diff options
Diffstat (limited to 'indra/llrender/llglslshader.cpp')
| -rw-r--r-- | indra/llrender/llglslshader.cpp | 132 |
1 files changed, 98 insertions, 34 deletions
diff --git a/indra/llrender/llglslshader.cpp b/indra/llrender/llglslshader.cpp index ca92cb6580..ad2c662dfc 100644 --- a/indra/llrender/llglslshader.cpp +++ b/indra/llrender/llglslshader.cpp @@ -2,31 +2,25 @@ * @file llglslshader.cpp * @brief GLSL helper functions and state. * - * $LicenseInfo:firstyear=2005&license=viewergpl$ - * - * 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 * $/LicenseInfo$ */ @@ -54,6 +48,8 @@ using std::pair; using std::make_pair; using std::string; +GLhandleARB LLGLSLShader::sCurBoundShader = 0; + BOOL shouldChange(const LLVector4& v1, const LLVector4& v2) { return v1 != v2; @@ -61,8 +57,8 @@ BOOL shouldChange(const LLVector4& v1, const LLVector4& v2) LLShaderFeatures::LLShaderFeatures() : calculatesLighting(false), isShiny(false), isFullbright(false), hasWaterFog(false), -hasTransport(false), hasSkinning(false), hasAtmospherics(false), isSpecular(false), -hasGamma(false), hasLighting(false), calculatesAtmospherics(false) +hasTransport(false), hasSkinning(false), hasObjectSkinning(false), hasAtmospherics(false), isSpecular(false), +hasGamma(false), hasLighting(false), calculatesAtmospherics(false), mIndexedTextureChannels(0), disableTextureIndex(false) { } @@ -113,18 +109,18 @@ BOOL LLGLSLShader::createShader(vector<string> * attributes, // Create program mProgramObject = glCreateProgramObjectARB(); - // Attach existing objects - if (!LLShaderMgr::instance()->attachShaderFeatures(this)) - { - return FALSE; + if (gGLManager.mGLVersion < 3.1f) + { //force indexed texture channels to 1 if GL version is old (performance improvement for drivers with poor branching shader model support) + mFeatures.mIndexedTextureChannels = llmin(mFeatures.mIndexedTextureChannels, 1); } + //compile new source vector< pair<string,GLenum> >::iterator fileIter = mShaderFiles.begin(); for ( ; fileIter != mShaderFiles.end(); fileIter++ ) { - GLhandleARB shaderhandle = LLShaderMgr::instance()->loadShaderFile((*fileIter).first, mShaderLevel, (*fileIter).second); + GLhandleARB shaderhandle = LLShaderMgr::instance()->loadShaderFile((*fileIter).first, mShaderLevel, (*fileIter).second, mFeatures.mIndexedTextureChannels); LL_DEBUGS("ShaderLoading") << "SHADER FILE: " << (*fileIter).first << " mShaderLevel=" << mShaderLevel << LL_ENDL; - if (mShaderLevel > 0) + if (shaderhandle > 0) { attachObject(shaderhandle); } @@ -134,6 +130,17 @@ BOOL LLGLSLShader::createShader(vector<string> * attributes, } } + // Attach existing objects + if (!LLShaderMgr::instance()->attachShaderFeatures(this)) + { + return FALSE; + } + + if (gGLManager.mGLVersion < 3.1f) + { //attachShaderFeatures may have set the number of indexed texture channels, so set to 1 again + mFeatures.mIndexedTextureChannels = llmin(mFeatures.mIndexedTextureChannels, 1); + } + // Map attributes and uniforms if (success) { @@ -155,6 +162,29 @@ BOOL LLGLSLShader::createShader(vector<string> * attributes, return createShader(attributes,uniforms); } } + else if (mFeatures.mIndexedTextureChannels > 0) + { //override texture channels for indexed texture rendering + bind(); + S32 channel_count = mFeatures.mIndexedTextureChannels; + + for (S32 i = 0; i < channel_count; i++) + { + uniform1i(llformat("tex%d", i), i); + } + + S32 cur_tex = channel_count; //adjust any texture channels that might have been overwritten + for (U32 i = 0; i < mTexture.size(); i++) + { + if (mTexture[i] > -1 && mTexture[i] < channel_count) + { + llassert(cur_tex < gGLManager.mNumTextureImageUnits); + uniform1i(i, cur_tex); + mTexture[i] = cur_tex++; + } + } + unbind(); + } + return success; } @@ -299,7 +329,8 @@ void LLGLSLShader::mapUniform(GLint index, const vector<string> * uniforms) GLint LLGLSLShader::mapUniformTextureChannel(GLint location, GLenum type) { - if (type >= GL_SAMPLER_1D_ARB && type <= GL_SAMPLER_2D_RECT_SHADOW_ARB) + if (type >= GL_SAMPLER_1D_ARB && type <= GL_SAMPLER_2D_RECT_SHADOW_ARB || + type == GL_SAMPLER_2D_MULTISAMPLE) { //this here is a texture glUniform1iARB(location, mActiveTextureChannels); LL_DEBUGS("ShaderLoading") << "Assigned to texture channel " << mActiveTextureChannels << LL_ENDL; @@ -348,7 +379,7 @@ void LLGLSLShader::bind() if (gGLManager.mHasShaderObjects) { glUseProgramObjectARB(mProgramObject); - + sCurBoundShader = mProgramObject; if (mUniformsDirty) { LLShaderMgr::instance()->updateShaderUniforms(this); @@ -371,6 +402,7 @@ void LLGLSLShader::unbind() } } glUseProgramObjectARB(0); + sCurBoundShader = 0; stop_glerror(); } } @@ -378,6 +410,7 @@ void LLGLSLShader::unbind() void LLGLSLShader::bindNoShader(void) { glUseProgramObjectARB(0); + sCurBoundShader = 0; } S32 LLGLSLShader::enableTexture(S32 uniform, LLTexUnit::eTextureType mode) @@ -704,17 +737,46 @@ void LLGLSLShader::uniformMatrix4fv(U32 index, U32 count, GLboolean transpose, c GLint LLGLSLShader::getUniformLocation(const string& uniform) { + GLint ret = -1; if (mProgramObject > 0) { std::map<string, GLint>::iterator iter = mUniformMap.find(uniform); if (iter != mUniformMap.end()) { - llassert(iter->second == glGetUniformLocationARB(mProgramObject, uniform.c_str())); - return iter->second; + if (gDebugGL) + { + stop_glerror(); + if (iter->second != glGetUniformLocationARB(mProgramObject, uniform.c_str())) + { + llerrs << "Uniform does not match." << llendl; + } + stop_glerror(); + } + ret = iter->second; } } - return -1; + /*if (gDebugGL) + { + if (ret == -1 && ret != glGetUniformLocationARB(mProgramObject, uniform.c_str())) + { + llerrs << "Uniform map invalid." << llendl; + } + }*/ + + return ret; +} + +GLint LLGLSLShader::getAttribLocation(U32 attrib) +{ + if (attrib < mAttribute.size()) + { + return mAttribute[attrib]; + } + else + { + return -1; + } } void LLGLSLShader::uniform1i(const string& uniform, GLint v) @@ -888,7 +950,9 @@ void LLGLSLShader::uniformMatrix4fv(const string& uniform, U32 count, GLboolean if (location >= 0) { + stop_glerror(); glUniformMatrix4fvARB(location, count, transpose, v); + stop_glerror(); } } |