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-rw-r--r--src/mesa/shader/slang/slang_codegen.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c
index 35e80e0452..c1664a5ccb 100644
--- a/src/mesa/shader/slang/slang_codegen.c
+++ b/src/mesa/shader/slang/slang_codegen.c
@@ -2236,7 +2236,9 @@ _slang_gen_assignment(slang_assemble_ctx * A, slang_operation *oper)
}
if (var->type.qualifier == SLANG_QUAL_CONST ||
var->type.qualifier == SLANG_QUAL_ATTRIBUTE ||
- var->type.qualifier == SLANG_QUAL_UNIFORM) {
+ var->type.qualifier == SLANG_QUAL_UNIFORM ||
+ (var->type.qualifier == SLANG_QUAL_VARYING &&
+ A->program->Target == GL_FRAGMENT_PROGRAM_ARB)) {
slang_info_log_error(A->log,
"illegal assignment to read-only variable '%s'",
(char *) oper->children[0].a_id);
@@ -2264,10 +2266,11 @@ _slang_gen_assignment(slang_assemble_ctx * A, slang_operation *oper)
lhs = _slang_gen_operation(A, &oper->children[0]);
if (lhs) {
- if (lhs->Store->File != PROGRAM_OUTPUT &&
- lhs->Store->File != PROGRAM_TEMPORARY &&
- lhs->Store->File != PROGRAM_VARYING &&
- lhs->Store->File != PROGRAM_UNDEFINED) {
+ if (!(lhs->Store->File == PROGRAM_OUTPUT ||
+ lhs->Store->File == PROGRAM_TEMPORARY ||
+ (lhs->Store->File == PROGRAM_VARYING &&
+ A->program->Target == GL_VERTEX_PROGRAM_ARB) ||
+ lhs->Store->File == PROGRAM_UNDEFINED)) {
slang_info_log_error(A->log,
"illegal assignment to read-only l-value");
return NULL;