static int32_t init_colors (void)
{
if (gfxvidinfo.pixbytes > 1) {
int32_t red_bits = bitsInMask(Rmask);
int32_t green_bits = bitsInMask(Gmask);
int32_t blue_bits = bitsInMask(Bmask);
int32_t red_shift = maskShift(Rmask);
int32_t green_shift = maskShift(Gmask);
int32_t blue_shift = maskShift(Bmask);
if (Amask == 0) {
alloc_colors64k (red_bits, green_bits, blue_bits,
red_shift, green_shift, blue_shift,
0, 0, 0, 0);
} else {
int32_t alpha_shift = maskShift(Amask);
int32_t alpha_bits = bitsInMask(Amask);
alloc_colors64k (red_bits, green_bits, blue_bits,
red_shift, green_shift, blue_shift,
alpha_bits, alpha_shift, /* alpha = */ 0xffffffff, 0);
}
} else {
DEBUG_LOG ("init_colors: only 256 colors\n");
return 0;
}
return 1;
}
static int init_colors (void)
{
if (visualInfo.VI_CLASS == TrueColor) {
red_bits = bitsInMask (visualInfo.red_mask);
green_bits = bitsInMask (visualInfo.green_mask);
blue_bits = bitsInMask (visualInfo.blue_mask);
red_shift = maskShift (visualInfo.red_mask);
green_shift = maskShift (visualInfo.green_mask);
blue_shift = maskShift (visualInfo.blue_mask);
}
if (need_dither) {
if (bitdepth == 1)
setup_greydither (1, get_color);
else
setup_dither (bitdepth, get_color);
} else {
if (bitdepth != 8 && bitdepth != 12 && bitdepth != 15
&& bitdepth != 16 && bitdepth != 24) {
write_log ("Unsupported bit depth (%d)\n", bitdepth);
return 0;
}
switch (visualInfo.VI_CLASS) {
case TrueColor:
alloc_colors64k (red_bits, green_bits, blue_bits, red_shift,
green_shift, blue_shift, 0, 0, 0,
inverse_byte_order);
XParseColor (display, cmap, "#000000", &black);
if (! XAllocColor (display, cmap, &black))
write_log ("Whoops??\n");
XParseColor (display, cmap, "#ffffff", &white);
if (! XAllocColor (display, cmap, &white))
write_log ("Whoops??\n");
break;
case GrayScale:
case PseudoColor:
alloc_colors256 (get_color);
break;
default:
write_log ("Unsupported visual class (%d)\n", visualInfo.VI_CLASS);
return 0;
}
}
return 1;
}
/*
* Find the colour depth of the display
*/
static int get_display_depth (void)
{
const SDL_VideoInfo *vid_info;
int depth = 0;
if ((vid_info = SDL_GetVideoInfo())) {
depth = vid_info->vfmt->BitsPerPixel;
/* Don't trust the answer if it's 16 bits; the display
* could actually be 15 bits deep. We'll count the bits
* ourselves */
if (depth == 16)
depth = bitsInMask (vid_info->vfmt->Rmask) + bitsInMask (vid_info->vfmt->Gmask) + bitsInMask (vid_info->vfmt->Bmask);
}
return depth;
}
static int init_colors (void)
{
int i;
int red_bits, green_bits, blue_bits;
int red_shift, green_shift, blue_shift;
/* Truecolor: */
red_bits = bitsInMask(prSDLScreen->format->Rmask);
green_bits = bitsInMask(prSDLScreen->format->Gmask);
blue_bits = bitsInMask(prSDLScreen->format->Bmask);
red_shift = maskShift(prSDLScreen->format->Rmask);
green_shift = maskShift(prSDLScreen->format->Gmask);
blue_shift = maskShift(prSDLScreen->format->Bmask);
alloc_colors64k (red_bits, green_bits, blue_bits, red_shift, green_shift, blue_shift, 0);
notice_new_xcolors();
for (i = 0; i < 4096; i++)
xcolors[i] = xcolors[i] * 0x00010001;
return 1;
}
static int init_colors (void)
{
int i;
#ifdef DEBUG_GFX
dbg("Function: init_colors");
#endif
/* Truecolor: */
red_bits = bitsInMask(prSDLScreen->format->Rmask);
green_bits = bitsInMask(prSDLScreen->format->Gmask);
blue_bits = bitsInMask(prSDLScreen->format->Bmask);
red_shift = maskShift(prSDLScreen->format->Rmask);
green_shift = maskShift(prSDLScreen->format->Gmask);
blue_shift = maskShift(prSDLScreen->format->Bmask);
alloc_colors64k (red_bits, green_bits, blue_bits, red_shift, green_shift, blue_shift);
for (i = 0; i < 4096; i++)
xcolors[i] = xcolors[i] * 0x00010001;
return 1;
}