static bool blit_is_unsafe(struct CirrusVGAState *s, bool dst_only) { /* should be the case, see cirrus_bitblt_start */ assert(s->cirrus_blt_width > 0); assert(s->cirrus_blt_height > 0); if (s->cirrus_blt_width > CIRRUS_BLTBUFSIZE) { return true; } if (blit_region_is_unsafe(s, s->cirrus_blt_dstpitch, s->cirrus_blt_dstaddr & s->cirrus_addr_mask)) { return true; } if (dst_only) { return false; } if (blit_region_is_unsafe(s, s->cirrus_blt_srcpitch, s->cirrus_blt_srcaddr & s->cirrus_addr_mask)) { return true; } return false; }