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authorChris Forbes <[email protected]>2014-12-05 19:43:13 +1300
committerChris Forbes <[email protected]>2014-12-07 11:46:42 +1300
commited56c16820aea0e115768d77861fe266380f2595 (patch)
treef5240441c2013780a4d1f97a88b5e6e7697e9b8e /src/mesa/drivers/dri
parent092c73a7c32b240a26ffeab2ee475f6d590540b2 (diff)
i965/Gen6-7: Fix point sprites with PolygonMode(GL_POINT)
This was an oversight in the original patch. When PolygonMode is used, then front faces, back faces, or both may be rendered as points and are affected by point sprite state. Note that SNB/IVB can't actually be fully conformant here, for a legacy context -- we don't have separate sets of pointsprite enables for front and back faces. Haswell ignores pointsprite state correctly in hardware for non-point rasterization, so can do this correctly, but it doesn't seem worth it. Signed-off-by: Chris Forbes <[email protected]> Cc: "10.4" <[email protected]> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=86764 Reviewed-by: Matt Turner <[email protected]>
Diffstat (limited to 'src/mesa/drivers/dri')
-rw-r--r--src/mesa/drivers/dri/i965/gen6_sf_state.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/gen6_sf_state.c b/src/mesa/drivers/dri/i965/gen6_sf_state.c
index ccb6b302474..fc73c572da7 100644
--- a/src/mesa/drivers/dri/i965/gen6_sf_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_sf_state.c
@@ -133,6 +133,12 @@ static bool
is_drawing_points(const struct brw_context *brw)
{
/* Determine if the primitives *reaching the SF* are points */
+ /* _NEW_POLYGON */
+ if (brw->ctx.Polygon.FrontMode == GL_POINT ||
+ brw->ctx.Polygon.BackMode == GL_POINT) {
+ return true;
+ }
+
if (brw->geometry_program) {
/* BRW_NEW_GEOMETRY_PROGRAM */
return brw->geometry_program->OutputType == GL_POINTS;