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Don't throw an exception on 0 width/height canvas, addresses #669

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UnknownShadow200 2020-06-06 15:20:48 +10:00
parent de833c3124
commit d1766b252d
1 changed files with 8 additions and 2 deletions
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10
src/Window.c
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@ -3009,8 +3009,14 @@ static void RescaleXY(int srcX, int srcY, int* dstX, int* dstY) {
double css_width, css_height;
emscripten_get_element_css_size("#canvas", &css_width, &css_height);
*dstX = (int)(srcX * WindowInfo.Width / css_width);
*dstY = (int)(srcY * WindowInfo.Height / css_height);
if (css_width && css_height) {
*dstX = (int)(srcX * WindowInfo.Width / css_width );
*dstY = (int)(srcY * WindowInfo.Height / css_height);
} else {
/* If css width or height is 0, something is bogus */
/* It's still better to avoid divsision by 0 anyways */
*dstX = srcX; *dstY = srcY;
}
}
static EM_BOOL OnMouseMove(int type, const EmscriptenMouseEvent* ev, void* data) {