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authorFelix Kuehling <[email protected]>2005-01-23 01:42:01 +0000
committerFelix Kuehling <[email protected]>2005-01-23 01:42:01 +0000
commit3b50f004333a922a259a4f733395c27002965ded (patch)
tree2ad70683c6932caca4218fb48f095147a52f1052 /src/mesa/drivers/dri/savage/savagetris.c
parent36a35c5614336bffdac4827c1e04bcaa8ab2fa27 (diff)
My last attempt to fix polygon offsets with the reversed viewport depth
range used by the savage driver by negating ctx->MRD broke polygon offsets with software fallbacks. This one adds a REVERSE_DEPTH parameter to t_dd_tritmp.h (defaults to 0) that allows reversing polygon offsets for hardware rendering but not for software fallbacks. For software fallbacks depth values are reversed after polygon offsets have been applied by the depth span functions.
Diffstat (limited to 'src/mesa/drivers/dri/savage/savagetris.c')
-rw-r--r--src/mesa/drivers/dri/savage/savagetris.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/savage/savagetris.c b/src/mesa/drivers/dri/savage/savagetris.c
index fdd0f12724d..f5faa3fe568 100644
--- a/src/mesa/drivers/dri/savage/savagetris.c
+++ b/src/mesa/drivers/dri/savage/savagetris.c
@@ -388,6 +388,7 @@ static struct {
#define TAB rast_tab
#define DEPTH_SCALE imesa->depth_scale
+#define REVERSE_DEPTH 1
#define UNFILLED_TRI unfilled_tri
#define UNFILLED_QUAD unfilled_quad
#define VERT_X(_v) _v->v.x