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authorEric Anholt <[email protected]>2010-11-23 15:55:59 -0800
committerEric Anholt <[email protected]>2011-03-11 12:55:14 -0800
commit29e013e58be93aa6ed760393cf77ef34ca1d57c0 (patch)
treebe7b3c332d7c02954267862966e8fc0e6ae14b8a
parent20f7a6f11aef492d5ca13e8ba9525eb2961d483c (diff)
mesa: Add gl_MESAFogParamsOptimized for our special pre-computed fog params.
It would be nice if we handled optimized uniform math like this in some generic way, since people often end up doing uniform expressions in shaders, but for now keep this hard-coded like it was in the texenvprogram code.
-rw-r--r--src/glsl/builtin_variables.h1
-rw-r--r--src/mesa/main/uniforms.c5
2 files changed, 6 insertions, 0 deletions
diff --git a/src/glsl/builtin_variables.h b/src/glsl/builtin_variables.h
index dfc93f39db9..9b4f5d9e3ec 100644
--- a/src/glsl/builtin_variables.h
+++ b/src/glsl/builtin_variables.h
@@ -105,5 +105,6 @@ static const builtin_variable builtin_110_deprecated_uniforms[] = {
/* Mesa-internal ATI_envmap_bumpmap state. */
{ ir_var_uniform, -1, "vec2", "gl_MESABumpRotMatrix0"},
{ ir_var_uniform, -1, "vec2", "gl_MESABumpRotMatrix1"},
+ { ir_var_uniform, -1, "vec4", "gl_MESAFogParamsOptimized"},
};
diff --git a/src/mesa/main/uniforms.c b/src/mesa/main/uniforms.c
index c31c07517f0..1d74efafdf7 100644
--- a/src/mesa/main/uniforms.c
+++ b/src/mesa/main/uniforms.c
@@ -217,6 +217,10 @@ static struct gl_builtin_uniform_element gl_MESABumpRotMatrix1_elements[] = {
{NULL, {STATE_INTERNAL, STATE_ROT_MATRIX_1}, SWIZZLE_XYZW},
};
+static struct gl_builtin_uniform_element gl_MESAFogParamsOptimized_elements[] = {
+ {NULL, {STATE_INTERNAL, STATE_FOG_PARAMS_OPTIMIZED}, SWIZZLE_XYZW},
+};
+
#define MATRIX(name, statevar, modifier) \
static struct gl_builtin_uniform_element name ## _elements[] = { \
{ NULL, { statevar, 0, 0, 0, modifier}, SWIZZLE_XYZW }, \
@@ -322,6 +326,7 @@ const struct gl_builtin_uniform_desc _mesa_builtin_uniform_desc[] = {
STATEVAR(gl_MESABumpRotMatrix0),
STATEVAR(gl_MESABumpRotMatrix1),
+ STATEVAR(gl_MESAFogParamsOptimized),
{NULL, NULL, 0}
};