From e1a71a97cd00d70fedeb6191b6ebb10361019ee1 Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Tue, 21 Feb 2012 14:02:09 -0600
Subject: [PATCH] SH-2908 Potential fix for pink textures on some OpenGL 3.1
implementations.
---
indra/llrender/llshadermgr.cpp | 18 +++++++++++-------
1 file changed, 11 insertions(+), 7 deletions(-)
diff --git a/indra/llrender/llshadermgr.cpp b/indra/llrender/llshadermgr.cpp
index 9aeb1a99f81..e1cd8fa62d5 100644
--- a/indra/llrender/llshadermgr.cpp
+++ b/indra/llrender/llshadermgr.cpp
@@ -614,6 +614,7 @@ GLhandleARB LLShaderMgr::loadShaderFile(const std::string& filename, S32 & shade
//some implementations of GLSL 1.30 require integer precision be explicitly declared
text[count++] = strdup("precision mediump int;\n");
+ text[count++] = strdup("precision highp float;\n");
}
else
{ //set version to 400
@@ -668,20 +669,22 @@ GLhandleARB LLShaderMgr::loadShaderFile(const std::string& filename, S32 & shade
VARYING_FLAT ivec4 vary_texture_index;
+ vec4 ret = vec4(1,0,1,1);
+
vec4 diffuseLookup(vec2 texcoord)
{
switch (vary_texture_index.r))
{
- case 0: return texture2D(tex0, texcoord);
- case 1: return texture2D(tex1, texcoord);
- case 2: return texture2D(tex2, texcoord);
+ case 0: ret = texture2D(tex0, texcoord); break;
+ case 1: ret = texture2D(tex1, texcoord); break;
+ case 2: ret = texture2D(tex2, texcoord); break;
.
.
.
- case N: return texture2D(texN, texcoord);
+ case N: return texture2D(texN, texcoord); break;
}
- return vec4(0,0,0,0);
+ return ret;
}
*/
@@ -708,18 +711,19 @@ GLhandleARB LLShaderMgr::loadShaderFile(const std::string& filename, S32 & shade
}
else if (major_version > 1 || minor_version >= 30)
{ //switches are supported in GLSL 1.30 and later
+ text[count++] = strdup("\tvec4 ret = vec4(1,0,1,1);\n");
text[count++] = strdup("\tswitch (vary_texture_index.r)\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);
+ std::string case_str = llformat("\t\tcase %d: ret = texture2D(tex%d, texcoord); break;\n", i, i);
text[count++] = strdup(case_str.c_str());
}
text[count++] = strdup("\t}\n");
- text[count++] = strdup("\treturn vec4(1,0,1,1);\n");
+ text[count++] = strdup("\treturn ret;\n");
text[count++] = strdup("}\n");
}
else
--
GitLab