mesa: Rewrite the way uniforms are tracked and handled

Switch all of the code in ir_to_mesa, st_glsl_to_tgsi, glUniform*,
glGetUniform, glGetUniformLocation, and glGetActiveUniforms to use the
gl_uniform_storage structures in the gl_shader_program.

A couple of notes:

 * Like most rewrite-the-world patches, this should be reviewed by
   applying the patch and examining the modified functions.

 * This leaves a lot of dead code around in linker.cpp and
   uniform_query.cpp.  This will be deleted in the next patches.

v2: Update the comment block (previously a FINISHME) in _mesa_uniform
about generating GL_INVALID_VALUE when an out-of-range sampler index
is specified.

Signed-off-by: Ian Romanick <[email protected]>
Tested-by: Tom Stellard <[email protected]>

1 files changed, 5 insertions, 7 deletions

diff --git a/src/mesa/program/sampler.cpp b/src/mesa/program/sampler.cpp
index 3b459d59cf8..e3641aaa958 100644
--- a/src/mesa/program/sampler.cpp
+++ b/src/mesa/program/sampler.cpp
@@ -27,6 +27,8 @@
 #include "glsl_types.h"
 #include "ir_visitor.h"
 #include "../glsl/program.h"
+#include "program/hash_table.h"
+#include "ir_uniform.h"
 
 extern "C" {
 #include "main/compiler.h"
@@ -110,17 +112,13 @@ _mesa_get_sampler_uniform_value(class ir_dereference *sampler,
 
    sampler->accept(&getname);
 
-   GLint index = _mesa_lookup_parameter_index(prog->Parameters, -1,
-					      getname.name);
-
-   if (index < 0) {
+   unsigned location;
+   if (!shader_program->UniformHash->get(location, getname.name)) {
       linker_error(shader_program,
 		   "failed to find sampler named %s.\n", getname.name);
       return 0;
    }
 
-   index += getname.offset;
-
-   return prog->Parameters->ParameterValues[index][0].f;
+   return shader_program->UniformStorage[location].sampler + getname.offset;
 }
 }