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Add dirty updating for Voodoo Banshee/3 overlay.

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This commit is contained in:
SarahW 2020-11-13 08:30:34 +00:00
commit 86a5b13f46
1 changed files with 13 additions and 0 deletions
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13
src/vid_voodoo_banshee.c
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@ -1896,6 +1896,17 @@ static void banshee_overlay_draw(svga_t *svga, int displine)
unsigned int y_coeff = (voodoo->overlay.src_y & 0xfffff) >> 4;
int skip_filtering;
if (svga->render == svga_render_null && !svga->changedvram[src_addr >> 12] && !svga->changedvram[src_addr2 >> 12] &&
!svga->fullchange && !voodoo->dirty_line[voodoo->overlay.src_y >> 20])
{
if (banshee->vidProcCfg & VIDPROCCFG_V_SCALE_ENABLE)
voodoo->overlay.src_y += voodoo->overlay.vidOverlayDvdy;
else
voodoo->overlay.src_y += (1 << 20);
return;
}
voodoo->dirty_line[voodoo->overlay.src_y >> 20] = 0;
// pclog("displine=%i addr=%08x %08x %08x %08x\n", displine, svga->overlay_latch.addr, src_addr, voodoo->overlay.vidOverlayDvdy, *(uint32_t *)src);
// if (src_addr >= 0x800000)
// fatal("overlay out of range!\n");
@ -2169,9 +2180,11 @@ static void banshee_overlay_draw(svga_t *svga, int displine)
void banshee_set_overlay_addr(void *p, uint32_t addr)
{
banshee_t *banshee = (banshee_t *)p;
voodoo_t *voodoo = banshee->voodoo;
banshee->svga.overlay.addr = banshee->voodoo->leftOverlayBuf & 0xfffffff;
banshee->svga.overlay_latch.addr = banshee->voodoo->leftOverlayBuf & 0xfffffff;
memset(voodoo->dirty_line, 1, 1024);
}
static void banshee_vsync_callback(svga_t *svga)