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EGA now renders at the correct size.

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This commit is contained in:
OBattler
2017-07-20 20:55:12 +02:00
parent fa0f77735c
commit 76222651ba
2 changed files with 14 additions and 5 deletions
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17
src/VIDEO/vid_ega.c
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@@ -454,7 +454,7 @@ void ega_recalctimings(ega_t *ega)
if (ega->crtc[7] & 1) ega->vtotal |= 0x100;
if (ega->crtc[7] & 32) ega->vtotal |= 0x200;
ega->vtotal++;
ega->vtotal += 2;
if (ega->crtc[7] & 2) ega->dispend |= 0x100;
if (ega->crtc[7] & 64) ega->dispend |= 0x200;
@@ -466,7 +466,7 @@ void ega_recalctimings(ega_t *ega)
if (ega->crtc[7] & 0x10) ega->split |= 0x100;
if (ega->crtc[9] & 0x40) ega->split |= 0x200;
ega->split+=2;
ega->split++;
ega->hdisp = ega->crtc[1];
ega->hdisp++;
@@ -572,6 +572,8 @@ void ega_poll(void *p)
}
ega->displine++;
if (ega->interlace)
ega->displine++;
if ((ega->stat & 8) && ((ega->displine & 15) == (ega->crtc[0x11] & 15)) && ega->vslines)
ega->stat &= ~8;
ega->vslines++;
@@ -595,6 +597,8 @@ void ega_poll(void *p)
ega->con = 0;
ega->maback += (ega->rowoffset << 3);
if (ega->interlace)
ega->maback += (ega->rowoffset << 3);
ega->maback &= ega->vrammask;
ega->ma = ega->maback;
}
@@ -631,10 +635,14 @@ void ega_poll(void *p)
ega->stat |= 8;
if (ega->seqregs[1] & 8) x = ega->hdisp * ((ega->seqregs[1] & 1) ? 8 : 9) * 2;
else x = ega->hdisp * ((ega->seqregs[1] & 1) ? 8 : 9);
if (ega->interlace && !ega->oddeven) ega->lastline++;
if (ega->interlace && ega->oddeven) ega->firstline--;
if ((x != xsize || (ega->lastline - ega->firstline) != ysize) || update_overscan)
{
xsize = x;
ysize = ega->lastline - ega->firstline;
ysize = ega->lastline - ega->firstline + 1;
if (xsize < 64) xsize = 640;
if (ysize < 32) ysize = 200;
y_add = enable_overscan ? 14 : 0;
@@ -714,7 +722,7 @@ void ega_poll(void *p)
}
}
video_blit_memtoscreen(32, 0, ega->firstline, ega->lastline + y_add_ex, xsize + x_add_ex, ega->lastline - ega->firstline + y_add_ex);
video_blit_memtoscreen(32, 0, ega->firstline, ega->lastline + 1 + y_add_ex, xsize + x_add_ex, ega->lastline - ega->firstline + 1 + y_add_ex);
frames++;
@@ -754,6 +762,7 @@ void ega_poll(void *p)
ega->vc = 0;
ega->sc = 0;
ega->dispon = 1;
ega->displine = (ega->interlace && ega->oddeven) ? 1 : 0;
ega->displine = 0;
ega->scrollcache = ega->attrregs[0x13] & 7;
}

2
src/VIDEO/vid_svga.c
View File

@@ -1610,7 +1610,7 @@ void svga_doblit(int y1, int y2, int wx, int wy, svga_t *svga)
return;
}
if ((wx!=xsize || wy!=ysize) && !vid_resize)
if (((wx!=xsize) || ((wy + 1)!=ysize)) && !vid_resize)
{
xsize=wx;
ysize=wy+1;