r300/compiler: emulate SIN/COS/SCS in r3xx-r4xx vertex shaders

Despite the docs, the corresponding hardware instructions are r5xx-only.

1 files changed, 7 insertions, 1 deletions

diff --git a/src/mesa/drivers/dri/r300/compiler/r3xx_vertprog.c b/src/mesa/drivers/dri/r300/compiler/r3xx_vertprog.c
index bd8d63246a2..276f4cb6b67 100644
--- a/src/mesa/drivers/dri/r300/compiler/r3xx_vertprog.c
+++ b/src/mesa/drivers/dri/r300/compiler/r3xx_vertprog.c
@@ -619,12 +619,18 @@ void r3xx_compile_vertex_program(struct r300_vertex_program_compiler* compiler)
 
 	debug_program_log(compiler, "after emulate branches");
 
-	{
+	if (compiler->Base.is_r500) {
 		struct radeon_program_transformation transformations[] = {
 			{ &r300_transform_vertex_alu, 0 },
 			{ &r300_transform_trig_scale_vertex, 0 }
 		};
 		radeonLocalTransform(&compiler->Base, 2, transformations);
+	} else {
+		struct radeon_program_transformation transformations[] = {
+			{ &r300_transform_vertex_alu, 0 },
+			{ &radeonTransformTrigSimple, 0 }
+		};
+		radeonLocalTransform(&compiler->Base, 2, transformations);
 	}
 
 	debug_program_log(compiler, "after native rewrite");