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| author | dkf <donal.k.fellows@manchester.ac.uk> | 2012-07-31 14:39:04 (GMT) |
|---|---|---|
| committer | dkf <donal.k.fellows@manchester.ac.uk> | 2012-07-31 14:39:04 (GMT) |
| commit | 57697b5b22a5851bca41ba3ec058f1de355ba5dc (patch) | |
| tree | 6faf126294b1235b3307dcc394cab895489ceef6 /generic/tkImgPhInstance.c | |
| parent | d4a4017589dd52fa8e9667df9d754fd62abd6bed (diff) | |
| download | tk-57697b5b22a5851bca41ba3ec058f1de355ba5dc.zip tk-57697b5b22a5851bca41ba3ec058f1de355ba5dc.tar.gz tk-57697b5b22a5851bca41ba3ec058f1de355ba5dc.tar.bz2 | |
minor improvements to flag handling
Diffstat (limited to 'generic/tkImgPhInstance.c')
| -rw-r--r-- | generic/tkImgPhInstance.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/generic/tkImgPhInstance.c b/generic/tkImgPhInstance.c index 5429ee3..3097489 100644 --- a/generic/tkImgPhInstance.c +++ b/generic/tkImgPhInstance.c @@ -1068,8 +1068,7 @@ GetColorTable( * Allocate colors for this color table if necessary. */ - if ((colorPtr->numColors == 0) - && ((colorPtr->flags & BLACK_AND_WHITE) == 0)) { + if ((colorPtr->numColors == 0) && !(colorPtr->flags & BLACK_AND_WHITE)) { AllocateColors(colorPtr); } } @@ -1104,12 +1103,12 @@ FreeColorTable( } if (force) { - if ((colorPtr->flags & DISPOSE_PENDING) != 0) { + if (colorPtr->flags & DISPOSE_PENDING) { Tcl_CancelIdleCall(DisposeColorTable, colorPtr); colorPtr->flags &= ~DISPOSE_PENDING; } DisposeColorTable(colorPtr); - } else if ((colorPtr->flags & DISPOSE_PENDING) == 0) { + } else if (!(colorPtr->flags & DISPOSE_PENDING)) { Tcl_DoWhenIdle(DisposeColorTable, colorPtr); colorPtr->flags |= DISPOSE_PENDING; } @@ -1813,11 +1812,11 @@ TkImgDitherInstance( } c = ((c + 2056) >> 4) - 128; - if ((masterPtr->flags & COLOR_IMAGE) == 0) { - c += srcPtr[0]; - } else { + if (masterPtr->flags & COLOR_IMAGE) { c += (unsigned) (srcPtr[0] * 11 + srcPtr[1] * 16 + srcPtr[2] * 5 + 16) >> 5; + } else { + c += srcPtr[0]; } srcPtr += 4; @@ -1886,11 +1885,11 @@ TkImgDitherInstance( } c = ((c + 2056) >> 4) - 128; - if ((masterPtr->flags & COLOR_IMAGE) == 0) { - c += srcPtr[0]; - } else { + if (masterPtr->flags & COLOR_IMAGE) { c += (unsigned)(srcPtr[0] * 11 + srcPtr[1] * 16 + srcPtr[2] * 5 + 16) >> 5; + } else { + c += srcPtr[0]; } srcPtr += 4; |