diff options
Diffstat (limited to 'indra/llrender/llglslshader.cpp')
| -rw-r--r-- | indra/llrender/llglslshader.cpp | 55 |
1 files changed, 47 insertions, 8 deletions
diff --git a/indra/llrender/llglslshader.cpp b/indra/llrender/llglslshader.cpp index 257bcd9380..ad2c662dfc 100644 --- a/indra/llrender/llglslshader.cpp +++ b/indra/llrender/llglslshader.cpp @@ -48,6 +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; @@ -56,7 +58,7 @@ BOOL shouldChange(const LLVector4& v1, const LLVector4& v2) LLShaderFeatures::LLShaderFeatures() : calculatesLighting(false), isShiny(false), isFullbright(false), hasWaterFog(false), hasTransport(false), hasSkinning(false), hasObjectSkinning(false), hasAtmospherics(false), isSpecular(false), -hasGamma(false), hasLighting(false), calculatesAtmospherics(false) +hasGamma(false), hasLighting(false), calculatesAtmospherics(false), mIndexedTextureChannels(0), disableTextureIndex(false) { } @@ -107,16 +109,16 @@ 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 (shaderhandle > 0) { @@ -128,6 +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) { @@ -149,6 +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; } @@ -293,7 +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; @@ -342,7 +379,7 @@ void LLGLSLShader::bind() if (gGLManager.mHasShaderObjects) { glUseProgramObjectARB(mProgramObject); - + sCurBoundShader = mProgramObject; if (mUniformsDirty) { LLShaderMgr::instance()->updateShaderUniforms(this); @@ -365,6 +402,7 @@ void LLGLSLShader::unbind() } } glUseProgramObjectARB(0); + sCurBoundShader = 0; stop_glerror(); } } @@ -372,6 +410,7 @@ void LLGLSLShader::unbind() void LLGLSLShader::bindNoShader(void) { glUseProgramObjectARB(0); + sCurBoundShader = 0; } S32 LLGLSLShader::enableTexture(S32 uniform, LLTexUnit::eTextureType mode) |