diff options
| -rw-r--r-- | src/gallium/auxiliary/util/u_format.c | 21 | ||||
| -rw-r--r-- | src/gallium/auxiliary/util/u_format.h | 3 |
2 files changed, 24 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_format.c b/src/gallium/auxiliary/util/u_format.c index e43a619313e..231e89017b4 100644 --- a/src/gallium/auxiliary/util/u_format.c +++ b/src/gallium/auxiliary/util/u_format.c @@ -169,6 +169,27 @@ util_format_is_snorm(enum pipe_format format) desc->channel[i].normalized; } +/** + * Returns true if all non-void channels are normalized unsigned. + */ +boolean +util_format_is_unorm(enum pipe_format format) +{ + const struct util_format_description *desc = util_format_description(format); + int i; + + if (desc->is_mixed) + return FALSE; + + i = util_format_get_first_non_void_channel(format); + if (i == -1) + return FALSE; + + return desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED && + !desc->channel[i].pure_integer && + desc->channel[i].normalized; +} + boolean util_format_is_snorm8(enum pipe_format format) { diff --git a/src/gallium/auxiliary/util/u_format.h b/src/gallium/auxiliary/util/u_format.h index 5bcfc1f1154..8dcc438a4a1 100644 --- a/src/gallium/auxiliary/util/u_format.h +++ b/src/gallium/auxiliary/util/u_format.h @@ -727,6 +727,9 @@ boolean util_format_is_snorm(enum pipe_format format); boolean +util_format_is_unorm(enum pipe_format format); + +boolean util_format_is_snorm8(enum pipe_format format); /** |