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authorRobert Ellison <papillo@tungstengraphics.com>2008-11-12 12:23:52 -0700
committerRobert Ellison <papillo@tungstengraphics.com>2008-11-12 12:24:22 -0700
commit44257a8e752a5f10aed7e5797b23cdb42120703c (patch)
treecb059e6d0a3e7370da4e9f2705a463567c436f5f /docs/MESA_shader_debug.spec
parentb44ec717c831bb2e3363ee79ae1faca7e0665bea (diff)
CELL: fix stencil test bugs
Fixed a boneheaded error in the generation of SPU code that calculates the results of the stencil test. Basically, all the greater than/less than calculations were exactly inverted: they were coded as though the given comparison took the stencil value as a left-hand operand and the reference value as a right-hand operand, but the actual semantics always put the reference as the left-hand operand and the stencil as the right-hand operand. With this fix, tests/dinoshade runs, as do all the other Mesa tests and samples that use stencil (and that don't use texture formats unsupported by Cell).
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