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winex11: Simplify the DIB byte width computation.

This commit is contained in:
Alexandre Julliard 2011-08-29 12:03:21 +02:00
parent 6fd40e3cae
commit 8cf6424057
1 changed files with 1 additions and 17 deletions
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18
dlls/winex11.drv/dib.c
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@ -154,23 +154,7 @@ static inline int X11DRV_DIB_GetXImageWidthBytes( int width, int depth )
*/
static int X11DRV_DIB_GetDIBWidthBytes( int width, int depth )
{
int words;
switch(depth)
{
case 1: words = (width + 31) / 32; break;
case 4: words = (width + 7) / 8; break;
case 8: words = (width + 3) / 4; break;
case 15:
case 16: words = (width + 1) / 2; break;
case 24: words = (width * 3 + 3) / 4; break;
default:
WARN("(%d): Unsupported depth\n", depth );
/* fall through */
case 32:
words = width;
}
return 4 * words;
return ((width * depth + 31) / 8) & ~3;
}