test Floyd-Steinberg dither for alpha masks

pull/1/head
dscho 18 years ago
parent 6273f2065a
commit 6fb3752bf2
  1. 9
      test/cursortest.c

@ -236,6 +236,7 @@ void SetAlphaCursor(rfbScreenInfoPtr screen,int mode)
{
int i,j;
rfbCursorPtr c = screen->cursor;
int maskStride=(c->width+7)/8;
if(!c)
return;
@ -252,10 +253,14 @@ void SetAlphaCursor(rfbScreenInfoPtr screen,int mode)
for(j=0;j<c->height;j++)
for(i=0;i<c->width;i++) {
unsigned char value=0x100*j/c->height;
rfbBool masked=(c->mask[(i/8)+(c->width+7)/8*j]<<(i&7))&0x80;
unsigned char value=0x100*i/c->width;
rfbBool masked=(c->mask[(i/8)+maskStride*j]<<(i&7))&0x80;
c->alphaSource[i+c->width*j]=(masked?(mode==1?value:0xff-value):0);
}
if(c->cleanupMask)
free(c->mask);
c->mask=rfbMakeMaskFromAlphaSource(c->width,c->height,c->alphaSource);
c->cleanupMask=TRUE;
}
/* Here the pointer events are handled */

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