vc4: Add support for alpha test

Graphics / Mesa 3D Graphics Library / Mesa - Eric Anholt [anholt.net] - 24 September 2014 17:56 UTC

Fixes most of piglit fbo-alphatest-formats (but not RGB565/332).

8cd1650 vc4: Add support for alpha test.
src/gallium/drivers/vc4/vc4_program.c | 68 +++++++++++++++++++++++++++++++++
src/gallium/drivers/vc4/vc4_qir.h | 2 +
2 files changed, 70 insertions(+)

Upstream: cgit.freedesktop.org

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