RADEON_DST_WIDTH_HEIGHT
OUTREG(ai->regs, RADEON_DST_WIDTH_HEIGHT, ((list->right - list->left + 1) << 16) | (list->bottom - list->top + 1));
OUTREG(ai->regs, RADEON_DST_WIDTH_HEIGHT, ((list->right - list->left + 1) << 16) | (list->bottom - list->top + 1));