Module: Mesa Branch: 7.10 Commit: 8847205976c73f724d7383577d4f31007ba3aefe URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=8847205976c73f724d7383577d4f31007ba3aefe
Author: Zhenyu Wang <[email protected]> Date: Tue Jan 4 15:25:43 2011 +0800 i965: Use last vertex convention for quad provoking vertex on sandybridge Until we know how hw converts quads to polygon in beginning of 3D pipeline, for now unconditionally use last vertex convention. Fix glean/clipFlat case. (cherry picked from commit bea6539abff17f39c822ac9c1c94f8249c396b18) --- src/mesa/drivers/dri/i965/brw_context.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c index 28549f2..8fc322f 100644 --- a/src/mesa/drivers/dri/i965/brw_context.c +++ b/src/mesa/drivers/dri/i965/brw_context.c @@ -151,6 +151,13 @@ GLboolean brwCreateContext( int api, MIN2(ctx->Const.FragmentProgram.MaxNativeParameters, ctx->Const.FragmentProgram.MaxEnvParams); + /* Gen6 converts quads to polygon in beginning of 3D pipeline, + but we're not sure how it's actually done for vertex order, + that affect provoking vertex decision. Always use last vertex + convention for quad primitive which works as expected for now. */ + if (intel->gen == 6) + ctx->Const.QuadsFollowProvokingVertexConvention = GL_FALSE; + if (intel->is_g4x || intel->gen >= 5) { brw->CMD_VF_STATISTICS = CMD_VF_STATISTICS_GM45; brw->CMD_PIPELINE_SELECT = CMD_PIPELINE_SELECT_GM45; _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
