static void draw_filled_lasso(wmWindow *win, wmGesture *gt)
{
	const short *lasso = (short *)gt->customdata;
	const int tot = gt->points;
	int (*moves)[2] = MEM_mallocN(sizeof(*moves) * (tot + 1), __func__);
	int i;
	rcti rect;
	rcti rect_win;

	for (i = 0; i < tot; i++, lasso += 2) {
		moves[i][0] = lasso[0];
		moves[i][1] = lasso[1];
	}

	BLI_lasso_boundbox(&rect, (const int (*)[2])moves, tot);

	wm_subwindow_rect_get(win, gt->swinid, &rect_win);
	BLI_rcti_translate(&rect, rect_win.xmin, rect_win.ymin);
	BLI_rcti_isect(&rect_win, &rect, &rect);
	BLI_rcti_translate(&rect, -rect_win.xmin, -rect_win.ymin);

	/* highly unlikely this will fail, but could crash if (tot == 0) */
	if (BLI_rcti_is_empty(&rect) == false) {
		const int w = BLI_rcti_size_x(&rect);
		const int h = BLI_rcti_size_y(&rect);
		unsigned int *pixel_buf = MEM_callocN(sizeof(*pixel_buf) * w * h, __func__);
		struct LassoFillData lasso_fill_data = {pixel_buf, w};

		fill_poly_v2i_n(
		       rect.xmin, rect.ymin, rect.xmax, rect.ymax,
		       (const int (*)[2])moves, tot,
		       draw_filled_lasso_px_cb, &lasso_fill_data);

		glEnable(GL_BLEND);
		// glColor4f(1.0, 1.0, 1.0, 0.05);

		glRasterPos2f(rect.xmin, rect.ymin);

		glDrawPixels(w, h, GL_RGBA, GL_UNSIGNED_BYTE, pixel_buf);

		glDisable(GL_BLEND);
		MEM_freeN(pixel_buf);
	}

	MEM_freeN(moves);
}
float MemoryBuffer::getMaximumValue(rcti *rect)
{
	rcti rect_clamp;

	/* first clamp the rect by the bounds or we get un-initialized values */
	BLI_rcti_isect(rect, &this->m_rect, &rect_clamp);

	if (!BLI_rcti_is_empty(&rect_clamp)) {
		MemoryBuffer *temp = new MemoryBuffer(NULL, &rect_clamp);
		temp->copyContentFrom(this);
		float result = temp->getMaximumValue();
		delete temp;
		return result;
	}
	else {
		BLI_assert(0);
		return 0.0f;
	}
}