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Video changes:

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Improved the banking of the ATI 28800-5 cards (VGA Charger and VGA Wonder XL).
Improved the skew and horizontal display of some of the ET4000W32P cards as well as the cursor.
Made the Oak OTI 077 and PVGA WD90c30 cards use the Sierra 11487 (actually a clone is used in the real cards).
For the WD90c30, changed the way the hack is involved.
Reverted some changes of the S3 Vision/Trio that originally made glitches, now the glitches are gone and the accelerator renders fine.
Re-organized the Sierra 1148x RAMDAC's and added the 11486 (Mark 1).
MCA SVGA cards use the full 32-bit mapping.
This commit is contained in:
TC1995
2021-10-24 19:06:05 +02:00
parent f70963e1ba
commit 61273f5c1f
9 changed files with 551 additions and 317 deletions
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25
src/video/vid_oak_oti.c
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@@ -28,6 +28,7 @@
#include <86box/device.h>
#include <86box/video.h>
#include <86box/vid_svga.h>
#include <86box/vid_svga_render.h>
#define BIOS_037C_PATH "roms/video/oti/bios.bin"
#define BIOS_067_AMA932J_PATH "roms/machines/ama932j/oti067.bin"
@@ -85,6 +86,14 @@ oti_out(uint16_t addr, uint8_t val, void *p)
return;
} else
break;
break;
case 0x3c6: case 0x3c7: case 0x3c8: case 0x3c9:
if (oti->chip_id == OTI_077)
sc1148x_ramdac_out(addr, 0, val, svga->ramdac, svga);
else
svga_out(addr, val, svga);
return;
case 0x3D4:
if (oti->chip_id)
@@ -216,6 +225,11 @@ oti_in(uint16_t addr, void *p)
temp = oti->enable_register;
break;
case 0x3c6: case 0x3c7: case 0x3c8: case 0x3c9:
if (oti->chip_id == OTI_077)
return sc1148x_ramdac_in(addr, 0, svga->ramdac, svga);
return svga_in(addr, svga);
case 0x3CF:
return svga->gdcreg[svga->gdcaddr & 0xf];
@@ -343,6 +357,14 @@ oti_recalctimings(svga_t *svga)
if ((oti->regs[0x0d] & 0x0c) && !(oti->regs[0x0d] & 0x10)) svga->rowoffset <<= 1;
svga->interlace = oti->regs[0x14] & 0x80;
if (svga->bpp == 16) {
svga->render = svga_render_16bpp_highres;
svga->hdisp >>= 1;
} else if (svga->bpp == 15) {
svga->render = svga_render_15bpp_highres;
svga->hdisp >>= 1;
}
}
@@ -406,6 +428,9 @@ oti_init(const device_t *info)
svga_init(info, &oti->svga, oti, oti->vram_size << 10,
oti_recalctimings, oti_in, oti_out, NULL, NULL);
if (oti->chip_id == OTI_077)
oti->svga.ramdac = device_add(&sc11487_ramdac_device); /*Actually a 82c487, probably a clone.*/
io_sethandler(0x03c0, 32,
oti_in, NULL, NULL, oti_out, NULL, NULL, oti);