struct Screen * openscreen(void)
{
struct Screen * screen;
UWORD pens[] = { ~0 };
ULONG patterncoltab[] = {
(16L << 16) + 0, /* 16 colors, loaded at index 0 */
0xB3B3B3B3, 0xB3B3B3B3, 0xB3B3B3B3, /* Grey70 */
0x00000000, 0x00000000, 0x00000000, /* Black */
0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, /* White */
0x66666666, 0x88888888, 0xBBBBBBBB, /* AMIGA Blue */
0x00000000, 0x00000000, 0xFFFFFFFF, /* Blue */
0x00000000, 0xFFFFFFFF, 0x00000000, /* Green */
0xFFFFFFFF, 0x00000000, 0x00000000, /* Red */
0x00000000, 0xFFFFFFFF, 0xFFFFFFFF, /* Cyan */
0x33333333, 0x33333333, 0x33333333, /* Pattern Col 1 */
0xcdcdcdcd, 0x6c6c6c6c, 0xc7c7c7c7, /* Pattern Col 2 */
0x8e8e8e8e, 0x85858585, 0x93939393, /* Pattern Col 3 */
0x22222222, 0x22222222, 0x22222222, /* Pattern Col 4 */
0x77777777, 0x77777777, 0x77777777, /* Pattern Col 5 */
0x66666666, 0x66666666, 0x66666666, /* Pattern Col 6 */
0x55555555, 0x55555555, 0x55555555, /* Pattern Col 7 */
0x44444444, 0x44444444, 0x44444444, /* Pattern Col 8 */
0L /* Termination */
};
printf("Opening screen\n");
if ((screen = OpenScreenTags(NULL,
SA_Width, 640,
SA_Height, 480,
SA_Depth, 24,
SA_Title, "gfx hidd demo",
SA_Pens, pens,
TAG_END))) {
} else {
screen = OpenScreenTags(NULL,
SA_Width, 640,
SA_Height, 480,
SA_Title, "gfx hidd demo",
TAG_END);
}
if (screen)
LoadRGB32(&screen->ViewPort, patterncoltab);
/* screen->RastPort.longreserved[0] = window->RPort->longreserved[0];
Draw(&screen->RastPort, 100, 100);
*/
return screen;
}
void AMI_ILBM_setScreenPalette(const amiVideo_Palette *palette, struct Screen *screen)
{
if(AMI_ILBM_agaIsSupported())
{
amiVideo_ULong *colorSpecs = amiVideo_generateRGB32ColorSpecs(palette);
LoadRGB32(&screen->ViewPort, (ULONG*)colorSpecs);
free(colorSpecs);
}
else
{
amiVideo_UWord *colorSpecs = amiVideo_generateRGB4ColorSpecs(palette);
LoadRGB4(&screen->ViewPort, (UWORD*)colorSpecs, palette->bitplaneFormat.numOfColors);
free(colorSpecs);
}
}
// Load a 32 bit palette, even under <39
void LIBFUNC L_LoadPalette32(
REG(a0, struct ViewPort *vp),
REG(a1, unsigned long *palette))
{
// Under 39 pass to Gfx library
if( ((struct Library *)GfxBase)->lib_Version>=39)
{
LoadRGB32(vp,palette);
}
// Otherwise, convert to 4 bit
else
{
unsigned short *backup_palette;
short pen,numcols;
// Get count
numcols=*(unsigned short *)palette;
++palette;
// Allocate backup palette
if ((backup_palette=AllocVec(numcols*sizeof(unsigned short),0)))
{
// Convert to 4 bit colour
for (pen=0;pen<numcols;pen++)
{
backup_palette[pen]=((*palette++)&0xf0000000)>>20;
backup_palette[pen]|=((*palette++)&0xf0000000)>>24;
backup_palette[pen]|=((*palette++)&0xf0000000)>>28;
}
// Load palette
LoadRGB4(vp,backup_palette,numcols);
// Free backup
FreeVec(backup_palette);
}
}
}
static void SetPalette(PaletteT *palette) {
size_t j = 0;
Display->Palette->Start = palette->start;
Display->Palette->Count = 0;
while (palette) {
size_t i;
for (i = 0; i < palette->count; i++) {
Display->Palette->Colors[j++] = palette->colors[i].r << 24;
Display->Palette->Colors[j++] = palette->colors[i].g << 24;
Display->Palette->Colors[j++] = palette->colors[i].b << 24;
}
Display->Palette->Count += palette->count;
palette = palette->next;
}
Display->Palette->Colors[j] = 0;
LoadRGB32(&Display->Screen->ViewPort, (ULONG *)Display->Palette);
}
