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authorBrian Paul <brianp@vmware.com>2009-12-29 10:11:26 -0700
committerBrian Paul <brianp@vmware.com>2009-12-29 10:11:29 -0700
commit4f481cb87ae948852effde2fa4d997c007afd99c (patch)
treef7496df247793500a446e98afaffb3ce9bedb3b0 /src/mesa
parent639e7a140e430aa8839c652459eddc9a4b79f9c6 (diff)
glsl: added uniform initializer check
GLSL 1.10 disallows initializers for uniforms but GLSL 1.20 and later allows them. This patch uses the #version directive to allow/disallow uniform initializers. This addresses bug 25807, but piglit also needs to be fixed to specify the GLSL version in the shader.
Diffstat (limited to 'src/mesa')
-rw-r--r--src/mesa/shader/slang/slang_codegen.c8
-rw-r--r--src/mesa/shader/slang/slang_codegen.h1
-rw-r--r--src/mesa/shader/slang/slang_compile.c3
3 files changed, 12 insertions, 0 deletions
diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c
index ee5a50ca82..b62cfc36af 100644
--- a/src/mesa/shader/slang/slang_codegen.c
+++ b/src/mesa/shader/slang/slang_codegen.c
@@ -3763,6 +3763,14 @@ _slang_gen_var_decl(slang_assemble_ctx *A, slang_variable *var,
#endif
}
+ if (var->type.qualifier == SLANG_QUAL_UNIFORM &&
+ !A->allow_uniform_initializers) {
+ slang_info_log_error(A->log,
+ "initializer for uniform %s not allowed",
+ varName);
+ return NULL;
+ }
+
/* IR for the variable we're initializing */
varRef = new_var(A, var);
if (!varRef) {
diff --git a/src/mesa/shader/slang/slang_codegen.h b/src/mesa/shader/slang/slang_codegen.h
index ee3be55a45..461633fe34 100644
--- a/src/mesa/shader/slang/slang_codegen.h
+++ b/src/mesa/shader/slang/slang_codegen.h
@@ -42,6 +42,7 @@ typedef struct slang_assemble_ctx_
struct gl_sl_pragmas *pragmas;
slang_var_table *vartable;
slang_info_log *log;
+ GLboolean allow_uniform_initializers;
/* current loop stack */
const slang_operation *LoopOperStack[MAX_LOOP_DEPTH];
diff --git a/src/mesa/shader/slang/slang_compile.c b/src/mesa/shader/slang/slang_compile.c
index 499e16e2de..57e3555c22 100644
--- a/src/mesa/shader/slang/slang_compile.c
+++ b/src/mesa/shader/slang/slang_compile.c
@@ -2058,6 +2058,7 @@ parse_init_declarator(slang_parse_ctx * C, slang_output_ctx * O,
if (C->global_scope) {
slang_assemble_ctx A;
memset(&A, 0, sizeof(slang_assemble_ctx));
+ A.allow_uniform_initializers = C->version > 110;
A.atoms = C->atoms;
A.space.funcs = O->funs;
A.space.structs = O->structs;
@@ -2077,6 +2078,7 @@ parse_init_declarator(slang_parse_ctx * C, slang_output_ctx * O,
if (var->initializer != NULL) {
slang_assemble_ctx A;
memset(&A, 0, sizeof(slang_assemble_ctx));
+ A.allow_uniform_initializers = C->version > 110;
A.atoms = C->atoms;
A.space.funcs = O->funs;
A.space.structs = O->structs;
@@ -2434,6 +2436,7 @@ parse_code_unit(slang_parse_ctx * C, slang_code_unit * unit,
A.vartable = o.vartable;
A.EmitContReturn = ctx->Shader.EmitContReturn;
A.log = C->L;
+ A.allow_uniform_initializers = C->version > 110;
/* main() takes no parameters */
if (mainFunc->param_count > 0) {