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Recognize 8514/a-type cards as (S)VGA for the purposes of force 4:3 calculations, fixes blurry picture and wrong resolution.

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OBattler
2025-03-29 19:54:48 +01:00
parent 8b646ccc49
commit b6b840b67e
1 changed files with 6 additions and 4 deletions
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10
src/86box.c
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@@ -1624,6 +1624,8 @@ set_screen_size_monitor(int x, int y, int monitor_index)
{ {
int temp_overscan_x = monitors[monitor_index].mon_overscan_x; int temp_overscan_x = monitors[monitor_index].mon_overscan_x;
int temp_overscan_y = monitors[monitor_index].mon_overscan_y; int temp_overscan_y = monitors[monitor_index].mon_overscan_y;
int is_svga = (video_get_type_monitor(monitor_index) == VIDEO_FLAG_TYPE_SPECIAL) ||
(video_get_type_monitor(monitor_index) == VIDEO_FLAG_TYPE_8514);
double dx; double dx;
double dy; double dy;
double dtx; double dtx;
@@ -1657,19 +1659,19 @@ set_screen_size_monitor(int x, int y, int monitor_index)
dty = (double) temp_overscan_y; dty = (double) temp_overscan_y;
/* Account for possible overscan. */ /* Account for possible overscan. */
if (video_get_type_monitor(monitor_index) != VIDEO_FLAG_TYPE_SPECIAL && (temp_overscan_y == 16)) { if (!is_svga && (temp_overscan_y == 16)) {
/* CGA */ /* CGA */
dy = (((dx - dtx) / 4.0) * 3.0) + dty; dy = (((dx - dtx) / 4.0) * 3.0) + dty;
} else if (video_get_type_monitor(monitor_index) != VIDEO_FLAG_TYPE_SPECIAL && (temp_overscan_y < 16)) { } else if (!is_svga && (temp_overscan_y < 16)) {
/* MDA/Hercules */ /* MDA/Hercules */
dy = (x / 4.0) * 3.0; dy = (dx / 4.0) * 3.0;
} else { } else {
if (enable_overscan) { if (enable_overscan) {
/* EGA/(S)VGA with overscan */ /* EGA/(S)VGA with overscan */
dy = (((dx - dtx) / 4.0) * 3.0) + dty; dy = (((dx - dtx) / 4.0) * 3.0) + dty;
} else { } else {
/* EGA/(S)VGA without overscan */ /* EGA/(S)VGA without overscan */
dy = (x / 4.0) * 3.0; dy = (dx / 4.0) * 3.0;
} }
} }
monitors[monitor_index].mon_unscaled_size_y = (int) dy; monitors[monitor_index].mon_unscaled_size_y = (int) dy;