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Video changes of the day (July 8th, 2024)

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IBM 8514/A set:
Fixed a one off video bug that was causing the VGA video to not be restored after quitting a 8514/A GUI session (namely on Win2.x' 8514/A's driver).
ATI Mach32:
Fixed another vertical display issue when activated (in 1280x1024 mode, when 1024 was 1022).
All involved:
Apply RG's changedvram fix to 8514/A, Mach8/32 and XGA's changedvram pointers.
This commit is contained in:
TC1995
2024-07-08 21:21:06 +02:00
parent 45f198af44
commit 1b6fd190fb
4 changed files with 15 additions and 11 deletions
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10
src/video/vid_8514a.c
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@@ -1004,9 +1004,9 @@ ibm8514_accel_out(uint16_t port, uint32_t val, svga_t *svga, int len)
case 0x4ae8:
case 0x4ae9:
WRITE8(port, dev->accel.advfunc_cntl, val);
dev->on[port & 1] = dev->accel.advfunc_cntl & 0x01;
vga_on = !dev->on[port & 1];
dev->vendor_mode[port & 1] = 0;
dev->on[0] = dev->accel.advfunc_cntl & 0x01;
vga_on = !dev->on[0];
dev->vendor_mode[0] = 0;
ibm8514_log("[%04X:%08X]: IBM 8514/A: (0x%04x): ON=%d, shadow crt=%x, hdisp=%d, vdisp=%d.\n", CS, cpu_state.pc, port, dev->on[port & 1], dev->accel.advfunc_cntl & 0x04, dev->hdisp, dev->vdisp);
ibm8514_log("IBM mode set %s resolution.\n", (dev->accel.advfunc_cntl & 0x04) ? "2: 1024x768" : "1: 640x480");
svga_recalctimings(svga);
@@ -4311,7 +4311,7 @@ ibm8514_recalctimings(svga_t *svga)
} else
#endif
{
if (dev->on[0] || dev->on[1]) {
if (dev->on[0]) {
dev->h_total = dev->htotal + 1;
dev->rowcount = !!(dev->disp_cntl & 0x08);
@@ -4416,7 +4416,7 @@ ibm8514_init(const device_t *info)
dev->vram_size = 1024 << 10;
dev->vram = calloc(dev->vram_size, 1);
dev->changedvram = calloc(dev->vram_size >> 12, 1);
dev->changedvram = calloc((dev->vram_size >> 12) + 1, 1);
dev->vram_mask = dev->vram_size - 1;
dev->map8 = dev->pallook;
dev->local = 0;