radeonsi: add support for PIPE_CAP_TGSI_TEXCOORD

Graphics / Mesa 3D Graphics Library / Mesa - Marek Olšák [amd.com] - 26 May 2015 05:42 UTC

Without it, texcoords are mapped to GENERIC[0..7], PointCoord is mapped to GENERIC[8], and user-defined varyings start from GENERIC[9]. Since texcoords can only be used between VS and PS, and PointCoord is PS-only, it's silly to always start from GENERIC[9] in all other shaders (such as LS, HS, ES, GS).

This adds support for TEXCOORD and PCOORD semantics. As a result, st/mesa will use GENERIC[0] as a base for user-defined varyings, which should make linking ES and GS as well as tessellation shaders at runtime easier.

e4339bc radeonsi: add support for PIPE_CAP_TGSI_TEXCOORD
src/gallium/drivers/radeonsi/si_pipe.c | 2 +-
src/gallium/drivers/radeonsi/si_shader.c | 1 +
src/gallium/drivers/radeonsi/si_state.c | 20 ++++++++------------
src/gallium/drivers/radeonsi/si_state_shaders.c | 5 +++--
4 files changed, 13 insertions(+), 15 deletions(-)

Upstream: cgit.freedesktop.org

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