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authorBrian Paul <[email protected]>2016-09-15 15:13:07 -0600
committerBrian Paul <[email protected]>2016-09-16 08:44:12 -0600
commita01872f80880c1b928817d84834b7259d073b367 (patch)
treeed9974ecf87e3c439a6f82db49568110ef0ec552 /src/mesa/state_tracker/st_vdpau.c
parente1ea36ae719619e69dadaf7efa7c7a40f891be91 (diff)
st/mesa: only enable MSAA coverage options when we have a MSAA buffer
Regardless of whether GL_MULTISAMPLE is enabled (it's enabled by default) we should not set the alpha_to_coverage or alpha_to_one flags if the current drawing buffer does not do MSAA. This fixes the new piglit gl-1.3-alpha_to_coverage_nop test. ETQW is a game that enables GL_SAMPLE_ALPHA_TO_COVERAGE without MSAA. Shrubs along the side of roads were invisible because fragments with alpha < 0.5 were being discarded (zero coverage). v2: remove ctx->DrawBuffer != NULL check. Reviewed-by: Roland Scheidegger <[email protected]> Reviewed-by: Marek Olšák <[email protected]>
Diffstat (limited to 'src/mesa/state_tracker/st_vdpau.c')
0 files changed, 0 insertions, 0 deletions