diff options
Diffstat (limited to 'indra/llrender/llshadermgr.cpp')
| -rw-r--r-- | indra/llrender/llshadermgr.cpp | 191 |
1 files changed, 173 insertions, 18 deletions
diff --git a/indra/llrender/llshadermgr.cpp b/indra/llrender/llshadermgr.cpp index 98a0a93084..e51ef8cfe7 100644 --- a/indra/llrender/llshadermgr.cpp +++ b/indra/llrender/llshadermgr.cpp @@ -209,17 +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; } } } @@ -230,32 +252,76 @@ BOOL LLShaderMgr::attachShaderFeatures(LLGLSLShader * shader) if (features->isShiny && features->hasWaterFog) { - if (!shader->attachObject("lighting/lightFullbrightShinyWaterF.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 (!shader->attachObject("lighting/lightFullbrightWaterF.glsl")) + if (features->disableTextureIndex) { - return FALSE; + 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; } } } @@ -266,17 +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; } } } @@ -320,7 +408,7 @@ void LLShaderMgr::dumpObjectLog(GLhandleARB ret, BOOL warns) } } -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) @@ -374,6 +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) ) @@ -457,7 +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; } |