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Add extra check/asserts to detect/avoid a reported crash in draw_image_into_new_tilemap_cel (fix #2770)

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This commit is contained in:
David Capello 2021-06-16 09:39:42 -03:00
parent b83f2953f9
commit 5ae7076d65
1 changed files with 9 additions and 3 deletions
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12
src/app/util/cel_ops.cpp
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@ -425,9 +425,15 @@ void draw_image_into_new_tilemap_cel(
delete addTile;
}
newTilemap->putPixel(
tilePt.x-tilemapBounds.x,
tilePt.y-tilemapBounds.y, tileIndex);
// We were using newTilemap->putPixel() directly but received a
// crash report about an "access violation". So now we've added
// some checks to the operation.
{
const int u = tilePt.x-tilemapBounds.x;
const int v = tilePt.y-tilemapBounds.y;
ASSERT((u >= 0) && (v >= 0) && (u < newTilemap->width()) && (v < newTilemap->height()));
doc::put_pixel(newTilemap.get(), u, v, tileIndex);
}
}
static_cast<Doc*>(dstLayer->sprite()->document())