Singularity-Viewer/SingularityViewer
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Catching up with Lindies part 2

Browse Source
This commit is contained in:
Siana Gearz
2012-03-25 09:38:36 +02:00
parent 196e9d6c78
commit 3f0f955a76
113 changed files with 801 additions and 516 deletions
Download Patch File Download Diff File Expand all files Collapse all files

89
indra/llrender/llshadermgr.cpp
View File

@@ -578,34 +578,45 @@ GLhandleARB LLShaderMgr::loadShaderFile(const std::string& filename, S32 & shade
GLcharARB* text[4096];
GLuint count = 0;
F32 version = gGLManager.mGLVersion;
//hack to never use GLSL > 1.20 on OSX
#if LL_DARWIN
version = llmin(version, 2.9f);
#endif
if (version < 2.1f)
S32 major_version = gGLManager.mGLSLVersionMajor;
S32 minor_version = gGLManager.mGLSLVersionMinor;
if (major_version == 1 && minor_version < 30)
{
text[count++] = strdup("#version 110\n");
text[count++] = strdup("#define ATTRIBUTE attribute\n");
text[count++] = strdup("#define VARYING varying\n");
}
else if (version < 3.3f)
{
//set version to 1.20
text[count++] = strdup("#version 120\n");
text[count++] = strdup("#define FXAA_GLSL_120 1\n");
text[count++] = strdup("#define FXAA_FAST_PIXEL_OFFSET 0\n");
text[count++] = strdup("#define ATTRIBUTE attribute\n");
text[count++] = strdup("#define VARYING varying\n");
if (minor_version < 10)
{
//should NEVER get here -- if major version is 1 and minor version is less than 10,
// viewer should never attempt to use shaders, continuing will result in undefined behavior
llerrs << "Unsupported GLSL Version." << llendl;
}
if (minor_version <= 19)
{
text[count++] = strdup("#version 110\n");
text[count++] = strdup("#define ATTRIBUTE attribute\n");
text[count++] = strdup("#define VARYING varying\n");
text[count++] = strdup("#define VARYING_FLAT varying\n");
}
else if (minor_version <= 29)
{
//set version to 1.20
text[count++] = strdup("#version 120\n");
text[count++] = strdup("#define FXAA_GLSL_120 1\n");
text[count++] = strdup("#define FXAA_FAST_PIXEL_OFFSET 0\n");
text[count++] = strdup("#define ATTRIBUTE attribute\n");
text[count++] = strdup("#define VARYING varying\n");
text[count++] = strdup("#define VARYING_FLAT varying\n");
}
}
else
{
if (version < 4.f)
if (major_version < 4)
{
//set version to 1.30
text[count++] = strdup("#version 130\n");
//some implementations of GLSL 1.30 require integer precision be explicitly declared
text[count++] = strdup("precision mediump int;\n");
}
else
{ //set version to 400
@@ -621,13 +632,17 @@ GLhandleARB LLShaderMgr::loadShaderFile(const std::string& filename, S32 & shade
{ //"varying" state is "out" in a vertex program, "in" in a fragment program
// ("varying" is deprecated after version 1.20)
text[count++] = strdup("#define VARYING out\n");
text[count++] = strdup("#define VARYING_FLAT flat out\n");
}
else
{
text[count++] = strdup("#define VARYING in\n");
text[count++] = strdup("#define VARYING_FLAT flat in\n");
}
//backwards compatibility with legacy texture lookup syntax
text[count++] = strdup("#define texture2D texture\n");
text[count++] = strdup("#define texture2DRect texture\n");
text[count++] = strdup("#define textureCube texture\n");
text[count++] = strdup("#define texture2DLod textureLod\n");
text[count++] = strdup("#define shadow2D(a,b) vec2(texture(a,b))\n"); //Shadow lookups only return a single float.
@@ -659,11 +674,11 @@ GLhandleARB LLShaderMgr::loadShaderFile(const std::string& filename, S32 & shade
.
uniform sampler2D texN;
varying float vary_texture_index;
VARYING_FLAT ivec4 vary_texture_index;
vec4 diffuseLookup(vec2 texcoord)
{
switch (int(vary_texture_index+0.25))
switch (vary_texture_index.r))
{
case 0: return texture2D(tex0, texcoord);
case 1: return texture2D(tex1, texcoord);
@@ -687,7 +702,7 @@ GLhandleARB LLShaderMgr::loadShaderFile(const std::string& filename, S32 & shade
if (texture_index_channels > 1)
{
text[count++] = strdup("VARYING float vary_texture_index;\n");
text[count++] = strdup("VARYING_FLAT ivec4 vary_texture_index;\n");
}
text[count++] = strdup("vec4 diffuseLookup(vec2 texcoord)\n");
@@ -716,28 +731,10 @@ GLhandleARB LLShaderMgr::loadShaderFile(const std::string& filename, S32 & shade
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(1,0,1,1);\n");
text[count++] = strdup("}\n");
}
{ //should never get here. Indexed texture rendering requires GLSL 1.30 or later
// (for passing integers between vertex and fragment shaders)
llerrs << "Indexed texture rendering requires GLSL 1.30 or later." << llendl;
}
}
//copy file into memory