diff options
| -rw-r--r-- | src/intel/isl/isl.h | 2 | ||||
| -rw-r--r-- | src/intel/isl/isl_format.c | 15 |
2 files changed, 17 insertions, 0 deletions
diff --git a/src/intel/isl/isl.h b/src/intel/isl/isl.h index bc242dbd4a3..2a29b28da59 100644 --- a/src/intel/isl/isl.h +++ b/src/intel/isl/isl.h @@ -854,6 +854,8 @@ isl_format_has_int_channel(enum isl_format fmt) isl_format_has_sint_channel(fmt); } +unsigned isl_format_get_num_channels(enum isl_format fmt); + static inline bool isl_format_is_compressed(enum isl_format fmt) { diff --git a/src/intel/isl/isl_format.c b/src/intel/isl/isl_format.c index fd16ea19658..4d02b1dd1e6 100644 --- a/src/intel/isl/isl_format.c +++ b/src/intel/isl/isl_format.c @@ -75,6 +75,21 @@ isl_format_has_sint_channel(enum isl_format fmt) return isl_format_has_channel_type(fmt, ISL_SINT); } +unsigned +isl_format_get_num_channels(enum isl_format fmt) +{ + const struct isl_format_layout *fmtl = isl_format_get_layout(fmt); + + assert(fmtl->channels.p.bits == 0); + + return (fmtl->channels.r.bits > 0) + + (fmtl->channels.g.bits > 0) + + (fmtl->channels.b.bits > 0) + + (fmtl->channels.a.bits > 0) + + (fmtl->channels.l.bits > 0) + + (fmtl->channels.i.bits > 0); +} + enum isl_format isl_format_rgb_to_rgba(enum isl_format rgb) { |