📄 snowdsp_mmx.c
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"movq 8(%1), %%mm4 \n\t"
"movq 2(%1), %%mm1 \n\t"
"movq 10(%1), %%mm5 \n\t"
"paddw %%mm6, %%mm0 \n\t"
"paddw %%mm6, %%mm4 \n\t"
"paddw %%mm7, %%mm1 \n\t"
"paddw %%mm7, %%mm5 \n\t"
"pavgw %%mm1, %%mm0 \n\t"
"pavgw %%mm5, %%mm4 \n\t"
"psubw %%mm7, %%mm0 \n\t"
"psubw %%mm7, %%mm4 \n\t"
"psraw $1, %%mm0 \n\t"
"psraw $1, %%mm4 \n\t"
"movq (%0), %%mm1 \n\t"
"movq 8(%0), %%mm5 \n\t"
"paddw %%mm1, %%mm0 \n\t"
"paddw %%mm5, %%mm4 \n\t"
"psraw $2, %%mm0 \n\t"
"psraw $2, %%mm4 \n\t"
"paddw %%mm1, %%mm0 \n\t"
"paddw %%mm5, %%mm4 \n\t"
"movq %%mm0, (%0) \n\t"
"movq %%mm4, 8(%0) \n\t"
:: "r"(&b[i]), "r"(&ref[i])
: "memory"
);
}
snow_horizontal_compose_liftS_lead_out(i, b, b, ref, width, w_l);
}
{ // Lift 3
IDWTELEM * const src = b+w2;
i = 0;
for(; i<w_r-7; i+=8){
asm volatile(
"movq 2(%1), %%mm2 \n\t"
"movq 10(%1), %%mm6 \n\t"
"paddw (%1), %%mm2 \n\t"
"paddw 8(%1), %%mm6 \n\t"
"movq (%0), %%mm0 \n\t"
"movq 8(%0), %%mm4 \n\t"
"paddw %%mm2, %%mm0 \n\t"
"paddw %%mm6, %%mm4 \n\t"
"psraw $1, %%mm2 \n\t"
"psraw $1, %%mm6 \n\t"
"paddw %%mm0, %%mm2 \n\t"
"paddw %%mm4, %%mm6 \n\t"
"movq %%mm2, (%2) \n\t"
"movq %%mm6, 8(%2) \n\t"
:: "r"(&src[i]), "r"(&b[i]), "r"(&temp[i])
: "memory"
);
}
snow_horizontal_compose_lift_lead_out(i, temp, src, b, width, w_r, 1, -W_AM, W_AO+1, W_AS);
}
{
snow_interleave_line_header(&i, width, b, temp);
for (; (i & 0x1E) != 0x1E; i-=2){
b[i+1] = temp[i>>1];
b[i] = b[i>>1];
}
for (i-=30; i>=0; i-=32){
asm volatile(
"movq (%1), %%mm0 \n\t"
"movq 8(%1), %%mm2 \n\t"
"movq 16(%1), %%mm4 \n\t"
"movq 24(%1), %%mm6 \n\t"
"movq (%1), %%mm1 \n\t"
"movq 8(%1), %%mm3 \n\t"
"movq 16(%1), %%mm5 \n\t"
"movq 24(%1), %%mm7 \n\t"
"punpcklwd (%2), %%mm0 \n\t"
"punpcklwd 8(%2), %%mm2 \n\t"
"punpcklwd 16(%2), %%mm4 \n\t"
"punpcklwd 24(%2), %%mm6 \n\t"
"movq %%mm0, (%0) \n\t"
"movq %%mm2, 16(%0) \n\t"
"movq %%mm4, 32(%0) \n\t"
"movq %%mm6, 48(%0) \n\t"
"punpckhwd (%2), %%mm1 \n\t"
"punpckhwd 8(%2), %%mm3 \n\t"
"punpckhwd 16(%2), %%mm5 \n\t"
"punpckhwd 24(%2), %%mm7 \n\t"
"movq %%mm1, 8(%0) \n\t"
"movq %%mm3, 24(%0) \n\t"
"movq %%mm5, 40(%0) \n\t"
"movq %%mm7, 56(%0) \n\t"
:: "r"(&b[i]), "r"(&b[i>>1]), "r"(&temp[i>>1])
: "memory"
);
}
}
}
#ifdef HAVE_7REGS
#define snow_vertical_compose_sse2_load_add(op,r,t0,t1,t2,t3)\
""op" ("r",%%"REG_d"), %%"t0" \n\t"\
""op" 16("r",%%"REG_d"), %%"t1" \n\t"\
""op" 32("r",%%"REG_d"), %%"t2" \n\t"\
""op" 48("r",%%"REG_d"), %%"t3" \n\t"
#define snow_vertical_compose_sse2_load(r,t0,t1,t2,t3)\
snow_vertical_compose_sse2_load_add("movdqa",r,t0,t1,t2,t3)
#define snow_vertical_compose_sse2_add(r,t0,t1,t2,t3)\
snow_vertical_compose_sse2_load_add("paddw",r,t0,t1,t2,t3)
#define snow_vertical_compose_r2r_sub(s0,s1,s2,s3,t0,t1,t2,t3)\
"psubw %%"s0", %%"t0" \n\t"\
"psubw %%"s1", %%"t1" \n\t"\
"psubw %%"s2", %%"t2" \n\t"\
"psubw %%"s3", %%"t3" \n\t"
#define snow_vertical_compose_sse2_store(w,s0,s1,s2,s3)\
"movdqa %%"s0", ("w",%%"REG_d") \n\t"\
"movdqa %%"s1", 16("w",%%"REG_d") \n\t"\
"movdqa %%"s2", 32("w",%%"REG_d") \n\t"\
"movdqa %%"s3", 48("w",%%"REG_d") \n\t"
#define snow_vertical_compose_sra(n,t0,t1,t2,t3)\
"psraw $"n", %%"t0" \n\t"\
"psraw $"n", %%"t1" \n\t"\
"psraw $"n", %%"t2" \n\t"\
"psraw $"n", %%"t3" \n\t"
#define snow_vertical_compose_r2r_add(s0,s1,s2,s3,t0,t1,t2,t3)\
"paddw %%"s0", %%"t0" \n\t"\
"paddw %%"s1", %%"t1" \n\t"\
"paddw %%"s2", %%"t2" \n\t"\
"paddw %%"s3", %%"t3" \n\t"
#define snow_vertical_compose_r2r_pmulhw(s0,s1,s2,s3,t0,t1,t2,t3)\
"pmulhw %%"s0", %%"t0" \n\t"\
"pmulhw %%"s1", %%"t1" \n\t"\
"pmulhw %%"s2", %%"t2" \n\t"\
"pmulhw %%"s3", %%"t3" \n\t"
#define snow_vertical_compose_sse2_move(s0,s1,s2,s3,t0,t1,t2,t3)\
"movdqa %%"s0", %%"t0" \n\t"\
"movdqa %%"s1", %%"t1" \n\t"\
"movdqa %%"s2", %%"t2" \n\t"\
"movdqa %%"s3", %%"t3" \n\t"
void ff_snow_vertical_compose97i_sse2(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width){
long i = width;
while(i & 0x1F)
{
i--;
b4[i] -= (W_DM*(b3[i] + b5[i])+W_DO)>>W_DS;
b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS;
b2[i] += (W_BM*(b1[i] + b3[i])+4*b2[i]+W_BO)>>W_BS;
b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
}
i+=i;
asm volatile (
"jmp 2f \n\t"
"1: \n\t"
snow_vertical_compose_sse2_load("%4","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_add("%6","xmm0","xmm2","xmm4","xmm6")
"pcmpeqw %%xmm0, %%xmm0 \n\t"
"pcmpeqw %%xmm2, %%xmm2 \n\t"
"paddw %%xmm2, %%xmm2 \n\t"
"paddw %%xmm0, %%xmm2 \n\t"
"psllw $13, %%xmm2 \n\t"
snow_vertical_compose_r2r_add("xmm0","xmm0","xmm0","xmm0","xmm1","xmm3","xmm5","xmm7")
snow_vertical_compose_r2r_pmulhw("xmm2","xmm2","xmm2","xmm2","xmm1","xmm3","xmm5","xmm7")
snow_vertical_compose_sse2_add("%5","xmm1","xmm3","xmm5","xmm7")
snow_vertical_compose_sse2_store("%5","xmm1","xmm3","xmm5","xmm7")
snow_vertical_compose_sse2_load("%4","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_add("%3","xmm1","xmm3","xmm5","xmm7")
snow_vertical_compose_r2r_sub("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_store("%4","xmm0","xmm2","xmm4","xmm6")
"pcmpeqw %%xmm7, %%xmm7 \n\t"
"pcmpeqw %%xmm5, %%xmm5 \n\t"
"psllw $15, %%xmm7 \n\t"
"psrlw $13, %%xmm5 \n\t"
"paddw %%xmm7, %%xmm5 \n\t"
snow_vertical_compose_r2r_add("xmm5","xmm5","xmm5","xmm5","xmm0","xmm2","xmm4","xmm6")
"movq (%2,%%"REG_d"), %%xmm1 \n\t"
"movq 8(%2,%%"REG_d"), %%xmm3 \n\t"
"paddw %%xmm7, %%xmm1 \n\t"
"paddw %%xmm7, %%xmm3 \n\t"
"pavgw %%xmm1, %%xmm0 \n\t"
"pavgw %%xmm3, %%xmm2 \n\t"
"movq 16(%2,%%"REG_d"), %%xmm1 \n\t"
"movq 24(%2,%%"REG_d"), %%xmm3 \n\t"
"paddw %%xmm7, %%xmm1 \n\t"
"paddw %%xmm7, %%xmm3 \n\t"
"pavgw %%xmm1, %%xmm4 \n\t"
"pavgw %%xmm3, %%xmm6 \n\t"
snow_vertical_compose_r2r_sub("xmm7","xmm7","xmm7","xmm7","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sra("1","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_add("%3","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sra("2","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_add("%3","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_store("%3","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_add("%1","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_move("xmm0","xmm2","xmm4","xmm6","xmm1","xmm3","xmm5","xmm7")
snow_vertical_compose_sra("1","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_r2r_add("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_add("%2","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_store("%2","xmm0","xmm2","xmm4","xmm6")
"2: \n\t"
"sub $64, %%"REG_d" \n\t"
"jge 1b \n\t"
:"+d"(i)
:"r"(b0),"r"(b1),"r"(b2),"r"(b3),"r"(b4),"r"(b5));
}
#define snow_vertical_compose_mmx_load_add(op,r,t0,t1,t2,t3)\
""op" ("r",%%"REG_d"), %%"t0" \n\t"\
""op" 8("r",%%"REG_d"), %%"t1" \n\t"\
""op" 16("r",%%"REG_d"), %%"t2" \n\t"\
""op" 24("r",%%"REG_d"), %%"t3" \n\t"
#define snow_vertical_compose_mmx_load(r,t0,t1,t2,t3)\
snow_vertical_compose_mmx_load_add("movq",r,t0,t1,t2,t3)
#define snow_vertical_compose_mmx_add(r,t0,t1,t2,t3)\
snow_vertical_compose_mmx_load_add("paddw",r,t0,t1,t2,t3)
#define snow_vertical_compose_mmx_store(w,s0,s1,s2,s3)\
"movq %%"s0", ("w",%%"REG_d") \n\t"\
"movq %%"s1", 8("w",%%"REG_d") \n\t"\
"movq %%"s2", 16("w",%%"REG_d") \n\t"\
"movq %%"s3", 24("w",%%"REG_d") \n\t"
#define snow_vertical_compose_mmx_move(s0,s1,s2,s3,t0,t1,t2,t3)\
"movq %%"s0", %%"t0" \n\t"\
"movq %%"s1", %%"t1" \n\t"\
"movq %%"s2", %%"t2" \n\t"\
"movq %%"s3", %%"t3" \n\t"
void ff_snow_vertical_compose97i_mmx(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width){
long i = width;
while(i & 15)
{
i--;
b4[i] -= (W_DM*(b3[i] + b5[i])+W_DO)>>W_DS;
b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS;
b2[i] += (W_BM*(b1[i] + b3[i])+4*b2[i]+W_BO)>>W_BS;
b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
}
i+=i;
asm volatile(
"jmp 2f \n\t"
"1: \n\t"
snow_vertical_compose_mmx_load("%4","mm1","mm3","mm5","mm7")
snow_vertical_compose_mmx_add("%6","mm1","mm3","mm5","mm7")
"pcmpeqw %%mm0, %%mm0 \n\t"
"pcmpeqw %%mm2, %%mm2 \n\t"
"paddw %%mm2, %%mm2 \n\t"
"paddw %%mm0, %%mm2 \n\t"
"psllw $13, %%mm2 \n\t"
snow_vertical_compose_r2r_add("mm0","mm0","mm0","mm0","mm1","mm3","mm5","mm7")
snow_vertical_compose_r2r_pmulhw("mm2","mm2","mm2","mm2","mm1","mm3","mm5","mm7")
snow_vertical_compose_mmx_add("%5","mm1","mm3","mm5","mm7")
snow_vertical_compose_mmx_store("%5","mm1","mm3","mm5","mm7")
snow_vertical_compose_mmx_load("%4","mm0","mm2","mm4","mm6")
snow_vertical_compose_mmx_add("%3","mm1","mm3","mm5","mm7")
snow_vertical_compose_r2r_sub("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6")
snow_vertical_compose_mmx_store("%4","mm0","mm2","mm4","mm6")
"pcmpeqw %%mm7, %%mm7 \n\t"
"pcmpeqw %%mm5, %%mm5 \n\t"
"psllw $15, %%mm7 \n\t"
"psrlw $13, %%mm5 \n\t"
"paddw %%mm7, %%mm5 \n\t"
snow_vertical_compose_r2r_add("mm5","mm5","mm5","mm5","mm0","mm2","mm4","mm6")
"movq (%2,%%"REG_d"), %%mm1 \n\t"
"movq 8(%2,%%"REG_d"), %%mm3 \n\t"
"paddw %%mm7, %%mm1 \n\t"
"paddw %%mm7, %%mm3 \n\t"
"pavgw %%mm1, %%mm0 \n\t"
"pavgw %%mm3, %%mm2 \n\t"
"movq 16(%2,%%"REG_d"), %%mm1 \n\t"
"movq 24(%2,%%"REG_d"), %%mm3 \n\t"
"paddw %%mm7, %%mm1 \n\t"
"paddw %%mm7, %%mm3 \n\t"
"pavgw %%mm1, %%mm4 \n\t"
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