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Fix X11DRV_DIB_SetImageBits_RLE(4|8) when an non-zero x-offset 

(argument left) is specified.
This commit is contained in:
Rein Klazes 2005-04-11 14:25:26 +00:00 committed by Alexandre Julliard
parent e4a3c2e4ee
commit bf559d544b
1 changed files with 19 additions and 9 deletions
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28
dlls/x11drv/dib.c
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@ -1368,11 +1368,13 @@ static void X11DRV_DIB_SetImageBits_RLE4( int lines, const BYTE *bits,
if (length) { /* encoded */
c = *bits++;
while (length--) {
if (x >= width) break;
XPutPixel(bmpImage, x++, y, colors[c >> 4]);
if (x >= (left + width)) break;
if( x >= left) XPutPixel(bmpImage, x, y, colors[c >> 4]);
x++;
if (!length--) break;
if (x >= width) break;
XPutPixel(bmpImage, x++, y, colors[c & 0xf]);
if (x >= (left + width)) break;
if( x >= left) XPutPixel(bmpImage, x, y, colors[c & 0xf]);
x++;
}
} else {
length = *bits++;
@ -1394,9 +1396,13 @@ static void X11DRV_DIB_SetImageBits_RLE4( int lines, const BYTE *bits,
default: /* absolute */
while (length--) {
c = *bits++;
if (x < width) XPutPixel(bmpImage, x++, y, colors[c >> 4]);
if (x >= left && x < (left + width))
XPutPixel(bmpImage, x, y, colors[c >> 4]);
x++;
if (!length--) break;
if (x < width) XPutPixel(bmpImage, x++, y, colors[c & 0xf]);
if (x >= left && x < (left + width))
XPutPixel(bmpImage, x, y, colors[c & 0xf]);
x++;
}
if ((bits - begin) & 1)
bits++;
@ -1828,7 +1834,10 @@ static void X11DRV_DIB_SetImageBits_RLE8( int lines, const BYTE *bits,
* [Run-Length] Encoded mode
*/
int color = colors[*pIn++];
while (length-- && x < dstwidth) XPutPixel(bmpImage, x++, y, color);
while (length-- && x < (left + dstwidth)) {
if( x >= left) XPutPixel(bmpImage, x, y, color);
x++;
}
}
else
{
@ -1861,12 +1870,13 @@ static void X11DRV_DIB_SetImageBits_RLE8( int lines, const BYTE *bits,
while (length--)
{
int color = colors[*pIn++];
if (x >= dstwidth)
if (x >= (left + dstwidth))
{
pIn += length;
break;
}
XPutPixel(bmpImage, x++, y, color);
if( x >= left) XPutPixel(bmpImage, x, y, color);
x++;
}
/*
* If you think for a moment you'll realise that the