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Enhance VGA pass-through handling in vid_voodoo.c

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Added logic to handle VGA pass-through state changes and mark lines dirty for refresh.
This commit is contained in:
AITUS95
2026-01-09 13:00:11 +01:00
committed by GitHub
parent b6a6161943
commit 43c419ecdb
1 changed files with 5 additions and 0 deletions
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5
src/video/vid_voodoo.c
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@@ -516,6 +516,7 @@ voodoo_writel(uint32_t addr, uint32_t val, void *priv)
break;
case SST_fbiInit0:
if (voodoo->initEnable & 0x01) {
int old_vga_pass = voodoo->fbiInit0 & FBIINIT0_VGA_PASS;
voodoo->fbiInit0 = val;
thread_wait_mutex(voodoo->force_blit_mutex);
voodoo->can_blit = (voodoo->fbiInit0 & FBIINIT0_VGA_PASS) ? 1 : 0;
@@ -523,6 +524,10 @@ voodoo_writel(uint32_t addr, uint32_t val, void *priv)
voodoo->force_blit_count = 0;
thread_release_mutex(voodoo->force_blit_mutex);
/* When VGA pass-through becomes active, mark all lines dirty to force full refresh */
if (!old_vga_pass && (val & FBIINIT0_VGA_PASS))
memset(voodoo->dirty_line, 1, sizeof(voodoo->dirty_line));
if (voodoo->set->nr_cards == 2)
svga_set_override(voodoo->svga, (voodoo->set->voodoos[0]->fbiInit0 | voodoo->set->voodoos[1]->fbiInit0) & 1);
else