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Handle 24 bit DIBs <-> 24 bit deep/24 bits per pixel XImages.

This commit is contained in:
Jim Aston 2000-03-09 18:41:36 +00:00 committed by Alexandre Julliard
parent 457df9206c
commit d78e2e5ed0
1 changed files with 32 additions and 0 deletions
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32
graphics/x11drv/dib.c
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@ -1697,6 +1697,22 @@ static void X11DRV_DIB_SetImageBits_24( int lines, const BYTE *srcbits,
switch ( bmpImage->depth )
{
case 24:
{
if (bmpImage->bits_per_pixel == 24) {
int tocopy = linebytes;
BYTE *dstpixel;
BYTE *ptr = srcbits+left*3;
if (tocopy < 0 ) tocopy = -tocopy;
dstpixel = bmpImage->data + lines*tocopy + left*3;
for(h = lines ; h-- ; ) {
dstpixel-=tocopy;
memcpy(dstpixel,ptr,tocopy);
ptr +=linebytes;
}
break;
}
}
case 32:
{
if( bmpImage->blue_mask == 0xff && bmpImage->red_mask == 0xff0000 ) /* packed BGR to unpacked BGR */
@ -1915,6 +1931,22 @@ static void X11DRV_DIB_GetImageBits_24( int lines, BYTE *dstbits,
switch ( bmpImage->depth )
{
case 24:
{
if (bmpImage->bits_per_pixel == 24) {
int tocopy = linebytes;
BYTE *srcpixel;
BYTE *ptr = (LPBYTE)dstbits;
if (tocopy < 0 ) tocopy = -tocopy;
srcpixel = bmpImage->data + lines*tocopy;
for(h = lines ; h-- ; ) {
srcpixel-=tocopy;
memcpy(ptr,srcpixel,tocopy);
ptr = (LPBYTE)(dstbits+=linebytes);
}
break;
}
}
case 32:
{
DWORD *srcpixel, buf;