mesa: track initialization status of uniform variables. Plus, asst clean-ups.

(cherry picked from commit 2d76a0d77af7be9539f89cba37ce84338c1cdda4)

2 files changed, 13 insertions, 9 deletions

diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c
index a76b6da32b..f9199a917f 100644
--- a/src/mesa/shader/slang/slang_codegen.c
+++ b/src/mesa/shader/slang/slang_codegen.c
@@ -3712,7 +3712,7 @@ _slang_codegen_global_variable(slang_assemble_ctx *A, slang_variable *var,
                /* temporary work-around */
                GLenum datatype = GL_FLOAT;
                GLint uniformLoc = _mesa_add_uniform(prog->Parameters, varName,
-                                                    totalSize, datatype);
+                                                    totalSize, datatype, NULL);
                store = _slang_new_ir_storage_swz(PROGRAM_UNIFORM, uniformLoc,
                                                  totalSize, swizzle);
 
@@ -3744,18 +3744,14 @@ _slang_codegen_global_variable(slang_assemble_ctx *A, slang_variable *var,
             }
          }
          else {
-            GLint uniformLoc = _mesa_add_uniform(prog->Parameters, varName,
-                                                 totalSize, datatype);
-            store = _slang_new_ir_storage_swz(PROGRAM_UNIFORM, uniformLoc,
-                                              totalSize, swizzle);
+            GLint uniformLoc;
+            const GLfloat *initialValues = NULL;
             if (var->initializer) {
                _slang_simplify(var->initializer, &A->space, A->atoms);
                if (var->initializer->type == SLANG_OPER_LITERAL_FLOAT ||
                    var->initializer->type == SLANG_OPER_LITERAL_INT) {
                   /* simple float/vector initializer */
-                  GLfloat *uniformValue =
-                     prog->Parameters->ParameterValues[uniformLoc];
-                  COPY_4V(uniformValue, var->initializer->literal);
+                  initialValues = var->initializer->literal;
                }
                else {
                   /* complex initializer */
@@ -3764,6 +3760,11 @@ _slang_codegen_global_variable(slang_assemble_ctx *A, slang_variable *var,
                   return GL_FALSE;
                }
             }
+
+            uniformLoc = _mesa_add_uniform(prog->Parameters, varName,
+                                           totalSize, datatype, initialValues);
+            store = _slang_new_ir_storage_swz(PROGRAM_UNIFORM, uniformLoc,
+                                              totalSize, swizzle);
          }
       }
       else {
diff --git a/src/mesa/shader/slang/slang_link.c b/src/mesa/shader/slang/slang_link.c
index 4361efc56e..79fd9a064f 100644
--- a/src/mesa/shader/slang/slang_link.c
+++ b/src/mesa/shader/slang/slang_link.c
@@ -193,7 +193,10 @@ link_uniform_vars(struct gl_shader_program *shProg,
 
       if ((p->Type == PROGRAM_UNIFORM && p->Used) ||
           p->Type == PROGRAM_SAMPLER) {
-         _mesa_append_uniform(shProg->Uniforms, p->Name, prog->Target, i);
+         struct gl_uniform *uniform =
+            _mesa_append_uniform(shProg->Uniforms, p->Name, prog->Target, i);
+         if (uniform)
+            uniform->Initialized = p->Initialized;
       }
 
       if (p->Type == PROGRAM_SAMPLER) {