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Actually found something that uses this, fixed (Wangan Midnight Dead Heat + Real Arrange, if you are wondering)

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This commit is contained in:
Angelo Salese 2013-02-16 03:15:08 +00:00
parent cd67733678
commit 7fe758f023
1 changed files with 9 additions and 3 deletions
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12
src/emu/video/stvvdp2.c
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@ -3355,6 +3355,7 @@ void saturn_state::draw_rgb32_bitmap(bitmap_rgb32 &bitmap, const rectangle &clip
int scrolly = stv2_current_tilemap.scrolly; int scrolly = stv2_current_tilemap.scrolly;
int r,g,b; int r,g,b;
UINT32 dot_data; UINT32 dot_data;
int xf, yf;
xsize = (stv2_current_tilemap.bitmap_size & 2) ? 1024 : 512; xsize = (stv2_current_tilemap.bitmap_size & 2) ? 1024 : 512;
ysize = (stv2_current_tilemap.bitmap_size & 1) ? 512 : 256; ysize = (stv2_current_tilemap.bitmap_size & 1) ? 512 : 256;
@ -3369,8 +3370,13 @@ void saturn_state::draw_rgb32_bitmap(bitmap_rgb32 &bitmap, const rectangle &clip
if(!stv_vdp2_window_process(xdst,ydst)) if(!stv_vdp2_window_process(xdst,ydst))
continue; continue;
xsrc = (xdst + scrollx) & (xsize_mask-1); xf = stv2_current_tilemap.incx * xdst;
ysrc = (ydst + scrolly) & (ysize_mask-1); xf>>=16;
yf = stv2_current_tilemap.incy * ydst;
yf>>=16;
xsrc = (xf + scrollx) & (xsize_mask-1);
ysrc = (yf + scrolly) & (ysize_mask-1);
src_offs = (xsrc + (ysrc*xsize)); src_offs = (xsrc + (ysrc*xsize));
src_offs *= 4; src_offs *= 4;
src_offs += map_offset; src_offs += map_offset;
@ -3440,7 +3446,7 @@ void saturn_state::stv_vdp2_draw_basic_bitmap(bitmap_rgb32 &bitmap, const rectan
// case 0: draw_4bpp_bitmap(bitmap,cliprect); return; // case 0: draw_4bpp_bitmap(bitmap,cliprect); return;
case 1: draw_8bpp_bitmap(bitmap,cliprect); return; case 1: draw_8bpp_bitmap(bitmap,cliprect); return;
case 3: draw_rgb15_bitmap(bitmap,cliprect); return; case 3: draw_rgb15_bitmap(bitmap,cliprect); return;
// case 4: draw_rgb32_bitmap(bitmap,cliprect); return; case 4: draw_rgb32_bitmap(bitmap,cliprect); return;
} }
/* intentional fall-through*/ /* intentional fall-through*/