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| author | marha <marha@users.sourceforge.net> | 2014-10-01 20:12:35 +0200 |
|---|---|---|
| committer | marha <marha@users.sourceforge.net> | 2014-10-01 20:12:35 +0200 |
| commit | 19b4b68b35a047a83bd291ee8debac1adb0e946c (patch) | |
| tree | d4d4520622ecf73fa0d076dc0bf517a1189b7d9f /mesalib/src/gallium/auxiliary/util/u_format.c | |
| parent | 4e080e0165d18887e2a0fccd7f30cf20fd04b178 (diff) | |
| parent | 438af0c7d4bf60b408b259c88205ff2193195466 (diff) | |
| download | vcxsrv-19b4b68b35a047a83bd291ee8debac1adb0e946c.tar.gz vcxsrv-19b4b68b35a047a83bd291ee8debac1adb0e946c.tar.bz2 vcxsrv-19b4b68b35a047a83bd291ee8debac1adb0e946c.zip | |
Merge remote-tracking branch 'origin/released'
Conflicts:
mesalib/src/mesa/main/macros.h
xorg-server/dix/registry.c
xorg-server/hw/kdrive/ephyr/ephyrinit.c
xorg-server/hw/xwin/Makefile.am
xorg-server/hw/xwin/glx/.gitignore
xorg-server/hw/xwin/glx/gen_gl_wrappers.py
xorg-server/hw/xwin/glx/indirect.c
xorg-server/hw/xwin/glx/winpriv.c
xorg-server/hw/xwin/winclipboardthread.c
xorg-server/hw/xwin/windisplay.c
xorg-server/hw/xwin/winmultiwindowwm.c
xorg-server/hw/xwin/winprefs.c
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_format.c')
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_format.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_format.c b/mesalib/src/gallium/auxiliary/util/u_format.c index d53dd7884..c1ce40811 100644 --- a/mesalib/src/gallium/auxiliary/util/u_format.c +++ b/mesalib/src/gallium/auxiliary/util/u_format.c @@ -92,6 +92,23 @@ util_format_is_luminance(enum pipe_format format) } boolean +util_format_is_alpha(enum pipe_format format) +{ + const struct util_format_description *desc = + util_format_description(format); + + if ((desc->colorspace == UTIL_FORMAT_COLORSPACE_RGB || + desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB) && + desc->swizzle[0] == UTIL_FORMAT_SWIZZLE_0 && + desc->swizzle[1] == UTIL_FORMAT_SWIZZLE_0 && + desc->swizzle[2] == UTIL_FORMAT_SWIZZLE_0 && + desc->swizzle[3] == UTIL_FORMAT_SWIZZLE_X) { + return TRUE; + } + return FALSE; +} + +boolean util_format_is_pure_integer(enum pipe_format format) { const struct util_format_description *desc = util_format_description(format); |