[Mesa-dev] [PATCH 0/8] gl_FragCoord and gl_FrontFacing as system values

[Marek Olšák]

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.

Marek