On 01/07/2016 06:29 PM, Marek Olšák wrote:
Hi,
This series adds the possibility for drivers to get gl_FragCoord and
gl_FrontFacing as system values. When FACE is a system value, it also changes
its type to integer from floating-point.
Each variable has its own Const flag / Gallium CAP, so drivers can choose
whether they want this for each variable.
This simplifies input handling in the radeonsi driver. With this, TGSI INPUT[i]
becomes fragment shader input[i] in the hardware, so the driver doesn't have to
do any translation of locations.
Please review.
Looks good overall. I probably should have made fragcoord and
frontfacing system values from day one. We could probably migrate all
the drivers to that convention over time.
Clarification about the integer front/back face values would be good.
Reviewed-by: Brian Paul <bri...@vmware.com>
-Brian
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