62 lines
2.6 KiB
C
62 lines
2.6 KiB
C
/*
|
|
* Copyright © 1998 Keith Packard
|
|
*
|
|
* Permission to use, copy, modify, distribute, and sell this software and its
|
|
* documentation for any purpose is hereby granted without fee, provided that
|
|
* the above copyright notice appear in all copies and that both that
|
|
* copyright notice and this permission notice appear in supporting
|
|
* documentation, and that the name of Keith Packard not be used in
|
|
* advertising or publicity pertaining to distribution of the software without
|
|
* specific, written prior permission. Keith Packard makes no
|
|
* representations about the suitability of this software for any purpose. It
|
|
* is provided "as is" without express or implied warranty.
|
|
*
|
|
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
|
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
|
* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
|
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
|
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
|
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
|
* PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include <dix-config.h>
|
|
|
|
#include "fb.h"
|
|
|
|
FbBits
|
|
fbReplicatePixel(Pixel p, int bpp)
|
|
{
|
|
FbBits b = p;
|
|
|
|
b &= FbFullMask(bpp);
|
|
while (bpp < FB_UNIT) {
|
|
b |= b << bpp;
|
|
bpp <<= 1;
|
|
}
|
|
return b;
|
|
}
|
|
|
|
#define O 0
|
|
#define I FB_ALLONES
|
|
|
|
const FbMergeRopRec FbMergeRopBits[16] = {
|
|
{O, O, O, O}, /* clear 0x0 0 */
|
|
{I, O, O, O}, /* and 0x1 src AND dst */
|
|
{I, O, I, O}, /* andReverse 0x2 src AND NOT dst */
|
|
{O, O, I, O}, /* copy 0x3 src */
|
|
{I, I, O, O}, /* andInverted 0x4 NOT src AND dst */
|
|
{O, I, O, O}, /* noop 0x5 dst */
|
|
{O, I, I, O}, /* xor 0x6 src XOR dst */
|
|
{I, I, I, O}, /* or 0x7 src OR dst */
|
|
{I, I, I, I}, /* nor 0x8 NOT src AND NOT dst */
|
|
{O, I, I, I}, /* equiv 0x9 NOT src XOR dst */
|
|
{O, I, O, I}, /* invert 0xa NOT dst */
|
|
{I, I, O, I}, /* orReverse 0xb src OR NOT dst */
|
|
{O, O, I, I}, /* copyInverted 0xc NOT src */
|
|
{I, O, I, I}, /* orInverted 0xd NOT src OR dst */
|
|
{I, O, O, I}, /* nand 0xe NOT src OR NOT dst */
|
|
{O, O, O, I}, /* set 0xf 1 */
|
|
};
|
|
|