We sometimes convert GL_QUAD_STRIP prims into GL_TRIANGLE_STRIP, but
that changes the results of the u_trim_pipe_prim() call. We need to
pass the original primitive type to the trim function.
Note that OpenGL's GL_x prim type values match Gallium's PIPE_PRIM_x values.
Fixes a failure in the new piglit degenerate-prims test.
Note: This is a candidate for the stable branches.
---
src/mesa/state_tracker/st_draw.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/src/mesa/state_tracker/st_draw.c b/src/mesa/state_tracker/st_draw.c
index de62264..bff8d9b 100644
--- a/src/mesa/state_tracker/st_draw.c
+++ b/src/mesa/state_tracker/st_draw.c
@@ -283,7 +283,7 @@ st_draw_vbo(struct gl_context *ctx,
/* don't trim, restarts might be inside index list */
cso_draw_vbo(st->cso_context, &info);
}
- else if (u_trim_pipe_prim(info.mode, &info.count))
+ else if (u_trim_pipe_prim(prims[i].mode, &info.count))
cso_draw_vbo(st->cso_context, &info);
}
--
1.7.3.4
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