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tilemap_generic.cpp: clip clip derp pt.2: of partial updates and things

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dinkc64 2018-11-13 07:18:56 -05:00
parent 37227d8528
commit 21ceebb995
1 changed files with 4 additions and 4 deletions
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8
src/burn/tilemap_generic.cpp
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@ -982,14 +982,14 @@ void GenericTilemapDraw(INT32 which, UINT16 *Bitmap, INT32 priority)
INT32 scrollx = ((cur_map->scrollx - cur_map->xoffset) / cur_map->twidth) * cur_map->twidth; INT32 scrollx = ((cur_map->scrollx - cur_map->xoffset) / cur_map->twidth) * cur_map->twidth;
// start drawing at tile-border, and let RenderCustomTile..Clip() take care of the sub-tile clipping. // start drawing at tile-border, and let RenderCustomTile..Clip() take care of the sub-tile clipping.
miny -= (miny % cur_map->theight); INT32 starty = miny - (miny % cur_map->theight);
minx -= (minx % cur_map->twidth); INT32 startx = minx - (minx % cur_map->twidth);
for (INT32 y = miny; y < (INT32)(maxy + cur_map->theight); y += cur_map->theight) for (INT32 y = starty; y < (INT32)(maxy + cur_map->theight); y += cur_map->theight)
{ {
INT32 syy = (y + scrolly) % (cur_map->theight * cur_map->mheight); INT32 syy = (y + scrolly) % (cur_map->theight * cur_map->mheight);
for (INT32 x = minx; x < (INT32)(maxx + cur_map->twidth); x += cur_map->twidth) for (INT32 x = startx; x < (INT32)(maxx + cur_map->twidth); x += cur_map->twidth)
{ {
INT32 sxx = (x + scrollx) % (cur_map->twidth * cur_map->mwidth); INT32 sxx = (x + scrollx) % (cur_map->twidth * cur_map->mwidth);