Mesa (master): r300/compiler: enable branch emulation for R500 fragment programs

[Marek Olšák]

Module: Mesa
Branch: master
Commit: 340e5e65dc1a7b82c8f910971c185bb4627204ea
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=340e5e65dc1a7b82c8f910971c185bb4627204ea

Author: Marek Olšák <maraeo at gmail.com>
Date:   Sun Oct 11 14:18:11 2009 +0200

r300/compiler: enable branch emulation for R500 fragment programs

---

 src/mesa/drivers/dri/r300/compiler/r3xx_fragprog.c |   17 +++++++++++++----
 1 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/src/mesa/drivers/dri/r300/compiler/r3xx_fragprog.c b/src/mesa/drivers/dri/r300/compiler/r3xx_fragprog.c
index 1e10534..25bf373 100644
--- a/src/mesa/drivers/dri/r300/compiler/r3xx_fragprog.c
+++ b/src/mesa/drivers/dri/r300/compiler/r3xx_fragprog.c
@@ -98,6 +98,15 @@ void r3xx_compile_fragment_program(struct r300_fragment_program_compiler* c)
 {
 	rewrite_depth_out(c);
 
+	debug_program_log(c, "before compilation");
+
+	/* XXX Ideally this should be done only for r3xx, but since
+	 * we don't have branching support for r5xx, we use the emulation
+	 * on all chipsets. */
+	rc_emulate_branches(&c->Base);
+
+	debug_program_log(c, "after emulate branches");
+
 	if (c->is_r500) {
 		struct radeon_program_transformation transformations[] = {
 			{ &r500_transform_IF, 0 },
@@ -107,6 +116,8 @@ void r3xx_compile_fragment_program(struct r300_fragment_program_compiler* c)
 		};
 		radeonLocalTransform(&c->Base, 4, transformations);
 
+		debug_program_log(c, "after native rewrite part 1");
+
 		c->Base.SwizzleCaps = &r500_swizzle_caps;
 	} else {
 		struct radeon_program_transformation transformations[] = {
@@ -115,9 +126,7 @@ void r3xx_compile_fragment_program(struct r300_fragment_program_compiler* c)
 		};
 		radeonLocalTransform(&c->Base, 2, transformations);
 
-		debug_program_log(c, "before emulate branches");
-
-		rc_emulate_branches(&c->Base);
+		debug_program_log(c, "after native rewrite part 1");
 
 		c->Base.SwizzleCaps = &r300_swizzle_caps;
 	}
@@ -135,7 +144,7 @@ void r3xx_compile_fragment_program(struct r300_fragment_program_compiler* c)
 	if (c->Base.Error)
 		return;
 
-	debug_program_log(c, "after native rewrite");
+	debug_program_log(c, "after native rewrite part 2");
 
 	rc_dataflow_deadcode(&c->Base, &dataflow_outputs_mark_use, c);
 	if (c->Base.Error)