Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-05-25 23:35:26 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

00230: On the emulated game when the waves are near the border of the screen you can see them on the other side. This is wrong.

Browse Source
This commit is contained in:
Roberto Zandona 2009-03-14 11:39:17 +00:00
parent 0095575e01
commit 9bbca338d4
1 changed files with 26 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
src/mame/video/m57.c
View File

@ -174,11 +174,34 @@ WRITE8_HANDLER( m57_flipscreen_w )
static void draw_background(running_machine *machine, bitmap_t *bitmap, const rectangle *cliprect) static void draw_background(running_machine *machine, bitmap_t *bitmap, const rectangle *cliprect)
{ {
int y; int y,x;
for (y = 0; y < 128; y++)
tilemap_set_scrollx(bg_tilemap, y, (y < 64) ? 0 : m57_scroll[64]);
for (y = 0; y < 256; y++)
tilemap_set_scrollx(bg_tilemap, y, (y < 64) ? 0 : (y < 128) ? m57_scroll[64] : m57_scroll[y]);
tilemap_draw(bitmap, cliprect, bg_tilemap, 0, 0); tilemap_draw(bitmap, cliprect, bg_tilemap, 0, 0);
for (y = 128; y <= cliprect->max_y; y++)
{
if (m57_scroll[y] < 128)
{
for (x = cliprect->min_x; x <= cliprect->max_x; x++)
{
if ((x + m57_scroll[y]) <= cliprect->max_x)
*BITMAP_ADDR16(bitmap, y, x) = *BITMAP_ADDR16(bitmap, y, x + m57_scroll[y]);
else
*BITMAP_ADDR16(bitmap, y, x) = *BITMAP_ADDR16(bitmap, y, cliprect->max_x);
}
} else {
for (x = cliprect->max_x; x >= cliprect->min_x; x--)
{
if ((x + m57_scroll[y] - 256) >= cliprect->min_x)
*BITMAP_ADDR16(bitmap, y, x) = *BITMAP_ADDR16(bitmap, y, x + m57_scroll[y] - 256);
else
*BITMAP_ADDR16(bitmap, y, x) = *BITMAP_ADDR16(bitmap, y, cliprect->min_x);
}
}
}
} }
/************************************* /*************************************