r300g: make setting up fragment depth output less hackish

1 files changed, 10 insertions, 0 deletions

diff --git a/src/gallium/drivers/r300/r300_fs.c b/src/gallium/drivers/r300/r300_fs.c
index f75d282205..8da0796e70 100644
--- a/src/gallium/drivers/r300/r300_fs.c
+++ b/src/gallium/drivers/r300/r300_fs.c
@@ -31,6 +31,7 @@
 #include "r300_context.h"
 #include "r300_screen.h"
 #include "r300_fs.h"
+#include "r300_reg.h"
 #include "r300_tgsi_to_rc.h"
 
 #include "radeon_code.h"
@@ -298,6 +299,15 @@ static void r300_translate_fragment_shader(
         }
     }
 
+    /* Setup shader depth output. */
+    if (shader->code.writes_depth) {
+        shader->fg_depth_src = R300_FG_DEPTH_SRC_SHADER;
+        shader->us_out_w = R300_W_FMT_W24 | R300_W_SRC_US;
+    } else {
+        shader->fg_depth_src = R300_FG_DEPTH_SRC_SCAN;
+        shader->us_out_w = R300_W_FMT_W0 | R300_W_SRC_US;
+    }
+
     /* And, finally... */
     rc_destroy(&compiler.Base);
 }