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pcx2hgr: allow creating images with black1 backgrounds

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This commit is contained in:
Vince Weaver 2017-01-09 23:47:39 -05:00
parent deb11f91f1
commit 2d805754d2
1 changed files with 22 additions and 1 deletions
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23
hgr-utils/pcx2hgr.c
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@ -11,6 +11,16 @@
#define PCX_8BIT 1
#define PCX_24BIT 2
/* If you want default black a different color try the below */
/* Useful if you are trying to xdraw to get red/blue */
#if 0
/* Default is BLACK0 */
#define DEFAULT_BLACK -1
#else
/* DEFAULT is BLACK1 */
#define DEFAULT_BLACK 1
#endif
static int debug=0;
static int vmwGetPCXInfo(char *filename, int *xsize, int *ysize, int *type) {
@ -288,9 +298,20 @@ static int make_color_image(unsigned char *in_framebuffer,
fourteen_bits|= ((colors[(*pcx)&0x7]&0x3)<<(i*2));
/* choose which palette */
pal[i/4]+= (colors[*pcx]&0x80) - (colors[*pcx]&0x40);
/* can't have colors 1/2 in same run as 4/5 */
/* If our graphic does, we vote for which to */
/* Use based on which occurs more */
/* if black or white, no change */
/* if low, 1-0 = add 1 */
/* if high, 0-1 = minus 1 */
pal[i/4]+= (colors[*pcx]&0x80) -
(colors[*pcx]&0x40);
pcx++;
}
if (pal[0]==0) pal[0]=DEFAULT_BLACK;
if (pal[1]==0) pal[1]=DEFAULT_BLACK;
byte1=(fourteen_bits&0x7f)|((pal[0]>0)<<7);
byte2=((fourteen_bits>>7)&0x7f)|((pal[1]>0)<<7);