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-rw-r--r--indra/llrender/llshadermgr.cpp258
1 files changed, 234 insertions, 24 deletions
diff --git a/indra/llrender/llshadermgr.cpp b/indra/llrender/llshadermgr.cpp
index 98a0a93084..751b250d96 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;
}
}
}
@@ -315,12 +403,12 @@ void LLShaderMgr::dumpObjectLog(GLhandleARB ret, BOOL warns)
}
else
{
- LL_INFOS("ShaderLoading") << log << LL_ENDL;
+ LL_DEBUGS("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)
@@ -374,6 +462,117 @@ GLhandleARB LLShaderMgr::loadShaderFile(const std::string& filename, S32 & shade
GLcharARB* text[1024];
GLuint count = 0;
+ if (gGLManager.mGLVersion < 2.1f)
+ {
+ text[count++] = strdup("#version 110\n");
+ }
+ else if (gGLManager.mGLVersion < 3.f)
+ {
+ //set version to 1.20
+ text[count++] = strdup("#version 120\n");
+ }
+ else
+ { //set version to 1.30
+ text[count++] = strdup("#version 130\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");
+
+
+ if (texture_index_channels == 1)
+ { //don't use flow control, that's silly
+ text[count++] = strdup("return texture2D(tex0, texcoord);\n");
+ text[count++] = strdup("}\n");
+ }
+ else if (gGLManager.mGLVersion >= 3.f)
+ {
+ 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");
+ }
+ else
+ {
+ //switches aren't supported, make block that looks like:
+ /*
+ int ti = int(vary_texture_index+0.25);
+ if (ti == 0) return texture2D(tex0, texcoord);
+ if (ti == 1) return texture2D(tex1, texcoord);
+ .
+ .
+ .
+ if (ti == N) return texture2D(texN, texcoord);
+ */
+
+ text[count++] = strdup("int ti = int(vary_texture_index+0.25);\n");
+ for (S32 i = 0; i < texture_index_channels; ++i)
+ {
+ std::string if_str = llformat("if (ti == %d) return texture2D(tex%d, texcoord);\n", i, i);
+ text[count++] = strdup(if_str.c_str());
+ }
+
+ 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) )
@@ -417,11 +616,6 @@ GLhandleARB LLShaderMgr::loadShaderFile(const std::string& filename, S32 & shade
}
}
- //free memory
- for (GLuint i = 0; i < count; i++)
- {
- free(text[i]);
- }
if (error == GL_NO_ERROR)
{
//check for errors
@@ -435,6 +629,16 @@ GLhandleARB LLShaderMgr::loadShaderFile(const std::string& filename, S32 & shade
//an error occured, print log
LL_WARNS("ShaderLoading") << "GLSL Compilation Error: (" << error << ") in " << filename << LL_ENDL;
dumpObjectLog(ret);
+
+ std::stringstream ostr;
+ //dump shader source for debugging
+ for (GLuint i = 0; i < count; i++)
+ {
+ ostr << i << ": " << text[i];
+ }
+
+ LL_WARNS("ShaderLoading") << "\n" << ostr.str() << llendl;
+
ret = 0;
}
}
@@ -445,6 +649,12 @@ GLhandleARB LLShaderMgr::loadShaderFile(const std::string& filename, S32 & shade
}
stop_glerror();
+ //free memory
+ for (GLuint i = 0; i < count; i++)
+ {
+ free(text[i]);
+ }
+
//successfully loaded, save results
if (ret)
{
@@ -457,7 +667,7 @@ 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;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-23 07:31:37 +0000