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authorEric Anholt <eric@anholt.net>2009-07-20 17:58:12 -0700
committerEric Anholt <eric@anholt.net>2009-07-20 19:10:20 -0700
commit1b445f96737cf5a1a28e81ff94a2e07b2cac3a96 (patch)
treebade0c14cac528ee67d3a415f4cc41d92da7ffac /src/mesa/drivers/dri
parent5ed440400573631f540701f3efd479d8c1592007 (diff)
i965: Don't clip everything if FRONT_AND_BACK culling while culling disabled.
Fixes everything-black with meta_clear_tris on quake4-mpdemo and doom3-demo. Bug #18844, 22077. (cherry picked from commit 81d555068408d4343d7627c8bedda5675f09bd21)
Diffstat (limited to 'src/mesa/drivers/dri')
-rw-r--r--src/mesa/drivers/dri/i965/brw_clip.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_clip.c b/src/mesa/drivers/dri/i965/brw_clip.c
index 5cffcebde4..8fc9f89cb7 100644
--- a/src/mesa/drivers/dri/i965/brw_clip.c
+++ b/src/mesa/drivers/dri/i965/brw_clip.c
@@ -152,7 +152,8 @@ static void upload_clip_prog(struct brw_context *brw)
/* _NEW_POLYGON */
if (key.primitive == GL_TRIANGLES) {
- if (ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)
+ if (ctx->Polygon.CullFlag &&
+ ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)
key.clip_mode = BRW_CLIPMODE_REJECT_ALL;
else {
GLuint fill_front = CLIP_CULL;