static inline void fill_rectangle(void *p, int w, int h, int stride, uint32_t val, int size){
static inline void fill_rectangle(void *vp, int w, int h, int stride, uint32_t val, int size){ uint8_t *p= (uint8_t*)vp;
static inline void fill_rectangle(void *p, int w, int h, int stride, uint32_t val, int size){ //FIXME ensure this IS inlined    assert(size==1 || size==4);        w      *= size;    stride *= size;    //FIXME check what gcc generates for 64 bit on x86 and possible write a 32 bit ver of it    if(w==2 && h==2){        *(uint16_t*)(p + 0)=        *(uint16_t*)(p + stride)= size==4 ? val : val*0x0101;    }else if(w==2 && h==4){        *(uint16_t*)(p + 0*stride)=        *(uint16_t*)(p + 1*stride)=        *(uint16_t*)(p + 2*stride)=        *(uint16_t*)(p + 3*stride)= size==4 ? val : val*0x0101;    }else if(w==4 && h==2){        *(uint32_t*)(p + 0*stride)=        *(uint32_t*)(p + 1*stride)= size==4 ? val : val*0x01010101;    }else if(w==4 && h==4){        *(uint32_t*)(p + 0*stride)=        *(uint32_t*)(p + 1*stride)=        *(uint32_t*)(p + 2*stride)=        *(uint32_t*)(p + 3*stride)= size==4 ? val : val*0x01010101;    }else if(w==8 && h==1){        *(uint32_t*)(p + 0)=        *(uint32_t*)(p + 4)= size==4 ? val : val*0x01010101;    }else if(w==8 && h==2){        *(uint32_t*)(p + 0 + 0*stride)=        *(uint32_t*)(p + 4 + 0*stride)=        *(uint32_t*)(p + 0 + 1*stride)=        *(uint32_t*)(p + 4 + 1*stride)=  size==4 ? val : val*0x01010101;    }else if(w==8 && h==4){        *(uint64_t*)(p + 0*stride)=        *(uint64_t*)(p + 1*stride)=        *(uint64_t*)(p + 2*stride)=        *(uint64_t*)(p + 3*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL;    }else if(w==16 && h==2){        *(uint64_t*)(p + 0+0*stride)=        *(uint64_t*)(p + 8+0*stride)=        *(uint64_t*)(p + 0+1*stride)=        *(uint64_t*)(p + 8+1*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL;    }else if(w==16 && h==4){        *(uint64_t*)(p + 0+0*stride)=        *(uint64_t*)(p + 8+0*stride)=        *(uint64_t*)(p + 0+1*stride)=        *(uint64_t*)(p + 8+1*stride)=        *(uint64_t*)(p + 0+2*stride)=        *(uint64_t*)(p + 8+2*stride)=        *(uint64_t*)(p + 0+3*stride)=        *(uint64_t*)(p + 8+3*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL;    }else        assert(0);}