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Fixed Hercules overscan in graphics mode, fixes #1666.

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This commit is contained in:
OBattler
2021-09-06 13:48:07 +02:00
parent b77033bc19
commit 680f0e2294
1 changed files with 15 additions and 3 deletions
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18
src/video/vid_hercules.c
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@@ -279,11 +279,17 @@ static void
hercules_render_overscan_left(hercules_t *dev)
{
int i;
uint32_t width;
if (dev->ctrl & 0x02)
width = (((uint32_t) dev->crtc[1]) << 4);
else
width = (((uint32_t) dev->crtc[1]) * 9);
if ((dev->displine + 14) < 0)
return;
if ((((uint32_t) dev->crtc[1]) * 9) == 0)
if (width == 0)
return;
for (i = 0; i < 8; i++)
@@ -295,15 +301,21 @@ static void
hercules_render_overscan_right(hercules_t *dev)
{
int i;
uint32_t width;
if (dev->ctrl & 0x02)
width = (((uint32_t) dev->crtc[1]) << 4);
else
width = (((uint32_t) dev->crtc[1]) * 9);
if ((dev->displine + 14) < 0)
return;
if ((((uint32_t) dev->crtc[1]) * 9) == 0)
if (width == 0)
return;
for (i = 0; i < 8; i++)
buffer32->line[dev->displine + 14][8 + (((uint32_t) dev->crtc[1]) * 9) + i] = 0x00000000;
buffer32->line[dev->displine + 14][8 + width + i] = 0x00000000;
}