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| author | Marek Olšák <marek.olsak@amd.com> | 2015-10-22 23:32:16 +0200 |
|---|---|---|
| committer | Marek Olšák <marek.olsak@amd.com> | 2015-10-24 00:01:20 +0200 |
| commit | e1c098f2381de53bd0a3260d330b057c8bfb3156 (patch) | |
| tree | f5ab1821583791291145f1e892d2b28646c21467 /src/gallium/auxiliary/util/u_format.c | |
| parent | 06083046a4a6e8321cc0230f84208c8e10947105 (diff) | |
util/format: add helper util_format_is_snorm8
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Diffstat (limited to 'src/gallium/auxiliary/util/u_format.c')
| -rw-r--r-- | src/gallium/auxiliary/util/u_format.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_format.c b/src/gallium/auxiliary/util/u_format.c index c1ce408119f..79630bf6dc3 100644 --- a/src/gallium/auxiliary/util/u_format.c +++ b/src/gallium/auxiliary/util/u_format.c @@ -170,6 +170,25 @@ util_format_is_snorm(enum pipe_format format) } boolean +util_format_is_snorm8(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_SIGNED && + !desc->channel[i].pure_integer && + desc->channel[i].normalized && + desc->channel[i].size == 8; +} + +boolean util_format_is_luminance_alpha(enum pipe_format format) { const struct util_format_description *desc = |