int picasso_palette (void)
{
int i, changed;
changed = 0;
for (i = 0; i < 256; i++) {
int r = picasso96_state.CLUT[i].Red;
int g = picasso96_state.CLUT[i].Green;
int b = picasso96_state.CLUT[i].Blue;
uae_u32 v = (doMask256 (r, g_red_bits, g_red_shift)
| doMask256 (g, g_green_bits, g_green_shift)
| doMask256 (b, g_blue_bits, g_blue_shift))
| doMask256 (0xff, g_alpha_bits, g_alpha_shift);
if (v != picasso_vidinfo.clut[i]) {
//write_log (_T("%d:%08x\n"), i, v);
picasso_vidinfo.clut[i] = v;
changed = 1;
}
}
return changed;
}
static void DX_SetPalette_real (int start, int count)
{
if (! screen_is_picasso || picasso96_state.RGBFormat != RGBFB_CHUNKY)
return;
if (picasso_vidinfo.pixbytes != 1) {
/* This is the case when we're emulating a 256 color display. */
while (count-- > 0) {
int r = picasso96_state.CLUT[start].Red;
int g = picasso96_state.CLUT[start].Green;
int b = picasso96_state.CLUT[start].Blue;
picasso_vidinfo.clut[start++] = (doMask256 (r, red_bits, red_shift)
| doMask256 (g, green_bits, green_shift)
| doMask256 (b, blue_bits, blue_shift));
}
return;
}
while (count-- > 0) {
XColor col = parsed_xcolors[start];
col.red = picasso96_state.CLUT[start].Red * 0x0101;
col.green = picasso96_state.CLUT[start].Green * 0x0101;
col.blue = picasso96_state.CLUT[start].Blue * 0x0101;
XStoreColor (display, cmap, &col);
XStoreColor (display, cmap2, &col);
start++;
}
#ifdef USE_DGA_EXTENSION
if (dgamode) {
dga_colormap_installed ^= 1;
if (dga_colormap_installed == 1)
XF86DGAInstallColormap (display, screen, cmap2);
else
XF86DGAInstallColormap (display, screen, cmap);
}
#endif
}
void DX_SetPalette(int start, int count)
{
if (!screen_is_picasso || picasso96_state.RGBFormat != RGBFB_CHUNKY)
return;
if (picasso_vidinfo.pixbytes != 1) {
/* This is the case when we're emulating a 256 color display. */
while (count-- > 0) {
int r = picasso96_state.CLUT[start].Red;
int g = picasso96_state.CLUT[start].Green;
int b = picasso96_state.CLUT[start].Blue;
picasso_vidinfo.clut[start++] = (doMask256 (r, 4, 12)
| doMask256 (g, 4, 8)
| doMask256 (b, 4, 0));
/* picasso_vidinfo.clut[start++] = (doMask256 (r, red_bits, red_shift) */
/* | doMask256 (g, green_bits, green_shift) */
/* | doMask256 (b, blue_bits, blue_shift)); */
}
}
else {
// TODO: Add chunky emulation pixel shaders in libglgfx to handle this
abort();
}
}
