r300/compiler: refactor vertex shader compilation

First list compiler passes in an array, then run the new function rc_run_compiler.
Every backend may need a different set of passes.
This cleans up the mess in r3xx_compile_vertex_program.

1 files changed, 24 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_compiler.c b/src/mesa/drivers/dri/r300/compiler/radeon_compiler.c
index 935dc9b0a8..4aff69c868 100644
--- a/src/mesa/drivers/dri/r300/compiler/radeon_compiler.c
+++ b/src/mesa/drivers/dri/r300/compiler/radeon_compiler.c
@@ -350,3 +350,27 @@ void rc_transform_fragment_face(struct radeon_compiler *c, unsigned face)
 		}
 	}
 }
+
+/* Executes a list of compiler passes given in the parameter 'list'. */
+void rc_run_compiler(struct radeon_compiler *c, struct radeon_compiler_pass *list,
+		     const char *shader_name)
+{
+	if (c->Debug) {
+		fprintf(stderr, "%s: before compilation\n", shader_name);
+		rc_print_program(&c->Program);
+	}
+
+	for (unsigned i = 0; list[i].name; i++) {
+		if (list[i].predicate) {
+			list[i].run(c, list[i].user);
+
+			if (c->Error)
+				return;
+
+			if (c->Debug && list[i].dump) {
+				fprintf(stderr, "%s: after '%s'\n", shader_name, list[i].name);
+				rc_print_program(&c->Program);
+			}
+		}
+	}
+}