Module: Mesa Branch: master Commit: ad26999d336ed5dd1f9c891d5a31fc59beb87273 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=ad26999d336ed5dd1f9c891d5a31fc59beb87273
Author: Brian Paul <[email protected]> Date: Sun Dec 24 15:37:09 2017 -0700 tgsi: improve comment on tgsi_util_get_shadow_ref_src_index() Reviewed-by: Marek Olšák <[email protected]> Reviewed-by: Neha Bhende <[email protected]> Reviewed-by: Charmaine Lee <[email protected]> --- src/gallium/auxiliary/tgsi/tgsi_util.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/src/gallium/auxiliary/tgsi/tgsi_util.c b/src/gallium/auxiliary/tgsi/tgsi_util.c index 78a5413b9d..a78172a848 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_util.c +++ b/src/gallium/auxiliary/tgsi/tgsi_util.c @@ -506,8 +506,12 @@ tgsi_util_get_texture_coord_dim(enum tgsi_texture_type tgsi_tex) /** - * Given a TGSI_TEXTURE_x target, return the src register index for the - * shadow reference coordinate. + * Given a TGSI_TEXTURE_x target, return register component where the + * shadow reference/distance coordinate is found. Typically, components + * 0 and 1 are the (s,t) texcoords and component 2 or 3 hold the shadow + * reference value. But if we return 4, it means the reference value is + * found in the 0th component of the second coordinate argument to the + * TEX2 instruction. */ int tgsi_util_get_shadow_ref_src_index(enum tgsi_texture_type tgsi_tex) _______________________________________________ mesa-commit mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/mesa-commit
