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Re-organisation of video emulation.

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This commit is contained in:
TomW 2013-06-24 20:42:35 +01:00
commit 58085bcc87
86 changed files with 8087 additions and 7229 deletions
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39
src/vid_unk_ramdac.c
View file

@ -6,61 +6,58 @@
#include "vid_svga.h"
#include "vid_unk_ramdac.h"
static int unk_state=0;
static uint8_t unk_ctrl;
void unk_ramdac_out(uint16_t addr, uint8_t val, void *priv)
void unk_ramdac_out(uint16_t addr, uint8_t val, unk_ramdac_t *ramdac, svga_t *svga)
{
//pclog("OUT RAMDAC %04X %02X\n",addr,val);
switch (addr)
{
case 0x3C6:
if (unk_state == 4)
if (ramdac->state == 4)
{
unk_state = 0;
unk_ctrl = val;
ramdac->state = 0;
ramdac->ctrl = val;
switch ((val&1)|((val&0xE0)>>4))
{
case 0: case 1: case 2: case 3:
bpp = 8;
svga->bpp = 8;
break;
case 6: case 7:
bpp = 24;
svga->bpp = 24;
break;
case 8: case 9: case 0xA: case 0xB:
bpp = 15;
svga->bpp = 15;
break;
case 0xC: case 0xD: case 0xE: case 0xF:
bpp = 16;
svga->bpp = 16;
break;
}
return;
}
unk_state = 0;
ramdac->state = 0;
break;
case 0x3C7: case 0x3C8: case 0x3C9:
unk_state = 0;
ramdac->state = 0;
break;
}
svga_out(addr, val, NULL);
svga_out(addr, val, svga);
}
uint8_t unk_ramdac_in(uint16_t addr, void *priv)
uint8_t unk_ramdac_in(uint16_t addr, unk_ramdac_t *ramdac, svga_t *svga)
{
//pclog("IN RAMDAC %04X\n",addr);
switch (addr)
{
case 0x3C6:
if (unk_state == 4)
if (ramdac->state == 4)
{
unk_state = 0;
return unk_ctrl;
ramdac->state = 0;
return ramdac->ctrl;
}
unk_state++;
ramdac->state++;
break;
case 0x3C7: case 0x3C8: case 0x3C9:
unk_state = 0;
ramdac->state = 0;
break;
}
return svga_in(addr, NULL);
return svga_in(addr, svga);
}