);
}
static void float_to_int16_sse(int16_t *dst, const float *src, long len){
- int i;
- for(i=0; i<len; i+=4) {
- asm volatile(
- "cvtps2pi %1, %%mm0 \n\t"
- "cvtps2pi %2, %%mm1 \n\t"
- "packssdw %%mm1, %%mm0 \n\t"
- "movq %%mm0, %0 \n\t"
- :"=m"(dst[i])
- :"m"(src[i]), "m"(src[i+2])
- );
- }
- asm volatile("emms");
+ asm volatile(
+ "add %0 , %0 \n\t"
+ "lea (%2,%0,2) , %2 \n\t"
+ "add %0 , %1 \n\t"
+ "neg %0 \n\t"
+ "1: \n\t"
+ "cvtps2pi (%2,%0,2) , %%mm0 \n\t"
+ "cvtps2pi 8(%2,%0,2) , %%mm1 \n\t"
+ "cvtps2pi 16(%2,%0,2) , %%mm2 \n\t"
+ "cvtps2pi 24(%2,%0,2) , %%mm3 \n\t"
+ "packssdw %%mm1 , %%mm0 \n\t"
+ "packssdw %%mm3 , %%mm2 \n\t"
+ "movq %%mm0 , (%1,%0) \n\t"
+ "movq %%mm2 , 8(%1,%0) \n\t"
+ "add $16 , %0 \n\t"
+ " js 1b \n\t"
+ "emms \n\t"
+ :"+r"(len), "+r"(dst), "+r"(src)
+ );
}
extern void ff_snow_horizontal_compose97i_sse2(IDWTELEM *b, int width);