freedreno/ir3: add helper to determine point-coord inputs

This will simplify a bit the logic for setting up vinterp/vprepl in the
driver backend, and also avoid it being a flag-day when we switch the
texcoord pipe cap.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5595>
This commit is contained in:
Rob Clark 2020-06-22 08:24:55 -07:00 committed by Marge Bot
parent 64c2a10707
commit 022c363cfb
2 changed files with 18 additions and 2 deletions

View File

@ -769,8 +769,6 @@ struct ir3_shader_linkage {
static inline void
ir3_link_add(struct ir3_shader_linkage *l, uint8_t regid_, uint8_t compmask, uint8_t loc)
{
for (int j = 0; j < util_last_bit(compmask); j++) {
uint8_t comploc = loc + j;
l->varmask[comploc / 32] |= 1 << (comploc % 32);

View File

@ -49,4 +49,22 @@ void ir3_shader_state_delete(struct pipe_context *pctx, void *hwcso);
void ir3_prog_init(struct pipe_context *pctx);
/**
* A helper to determine if a fs input 'i' is point/sprite coord, given
* the specified sprite_coord_enable mask
*/
static inline bool
ir3_point_sprite(const struct ir3_shader_variant *fs, int i,
uint32_t sprite_coord_enable, bool *coord_mode)
{
gl_varying_slot slot = fs->inputs[i].slot;
(void)coord_mode; /* this will be used later */
/* since we don't enable PIPE_CAP_TGSI_TEXCOORD: */
if (slot >= VARYING_SLOT_VAR0) {
unsigned texmask = 1 << (slot - VARYING_SLOT_VAR0);
return !!(sprite_coord_enable & texmask);
}
return false;
}
#endif /* IR3_GALLIUM_H_ */