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i965: Don't clip everything if FRONT_AND_BACK culling while culling disabled.

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Fixes everything-black with meta_clear_tris on quake4-mpdemo and doom3-demo.

Bug #18844, 22077.
This commit is contained in:
Eric Anholt 2009-07-20 17:58:12 -07:00
parent 6617fa6fab
commit 81d5550684
1 changed files with 2 additions and 1 deletions
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3
src/mesa/drivers/dri/i965/brw_clip.c
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@ -166,7 +166,8 @@ 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;