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| author | marha <marha@users.sourceforge.net> | 2013-07-01 11:33:28 +0200 |
|---|---|---|
| committer | marha <marha@users.sourceforge.net> | 2013-07-01 11:55:53 +0200 |
| commit | 28d1f604563d9c738a4c5630364d0e6b4e9b13ff (patch) | |
| tree | 1fbc6bd5cc5a1c950c6dfdf64c348f81604e9e9e /mesalib/src/gallium/auxiliary/util/u_format.c | |
| parent | ced1a6b8f5a750fcd3b8d3d0d9bbdee830064e6c (diff) | |
| download | vcxsrv-28d1f604563d9c738a4c5630364d0e6b4e9b13ff.tar.gz vcxsrv-28d1f604563d9c738a4c5630364d0e6b4e9b13ff.tar.bz2 vcxsrv-28d1f604563d9c738a4c5630364d0e6b4e9b13ff.zip | |
mesa git update 1 Jul 2013
mesa commit bf95ca7de0c02a00a75d1d5e2693a33b68ff784d
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_format.c')
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_format.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_format.c b/mesalib/src/gallium/auxiliary/util/u_format.c index 9bdc2eabf..686ca8a89 100644 --- a/mesalib/src/gallium/auxiliary/util/u_format.c +++ b/mesalib/src/gallium/auxiliary/util/u_format.c @@ -131,6 +131,26 @@ util_format_is_pure_uint(enum pipe_format format) return (desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED && desc->channel[i].pure_integer) ? TRUE : FALSE; } +/** + * Returns true if all non-void channels are normalized signed. + */ +boolean +util_format_is_snorm(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; +} boolean util_format_is_luminance_alpha(enum pipe_format format) |