snowdsp_mmx.c.svn-base

ffmpeg是一个大项目

                "psubd   %%mm0, %%mm1        \n\t"
                "psubd   %%mm4, %%mm5        \n\t"
                "movq     (%0), %%mm0        \n\t"
                "movq    8(%0), %%mm4        \n\t"
                "pslld      $2, %%mm0        \n\t"
                "pslld      $2, %%mm4        \n\t"
                "psubd   %%mm0, %%mm1        \n\t"
                "psubd   %%mm4, %%mm5        \n\t"
                "psrad      $4, %%mm1        \n\t"
                "psrad      $4, %%mm5        \n\t"
                "movq     (%0), %%mm0        \n\t"
                "movq    8(%0), %%mm4        \n\t"
                "psubd   %%mm1, %%mm0        \n\t"
                "psubd   %%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
        DWTELEM * const src = b+w2;
        i = 0;

        for(; i<w_r-3; i+=4){
            asm volatile(
                "movq    4(%1), %%mm2        \n\t"
                "movq   12(%1), %%mm6        \n\t"
                "paddd    (%1), %%mm2        \n\t"
                "paddd   8(%1), %%mm6        \n\t"
                "movq    %%mm2, %%mm0        \n\t"
                "movq    %%mm6, %%mm4        \n\t"
                "pslld      $2, %%mm2        \n\t"
                "pslld      $2, %%mm6        \n\t"
                "psubd   %%mm2, %%mm0        \n\t"
                "psubd   %%mm6, %%mm4        \n\t"
                "psrad      $1, %%mm0        \n\t"
                "psrad      $1, %%mm4        \n\t"
                "movq     (%0), %%mm2        \n\t"
                "movq    8(%0), %%mm6        \n\t"
                "psubd   %%mm0, %%mm2        \n\t"
                "psubd   %%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, W_AS);
    }

    {
        snow_interleave_line_header(&i, width, b, temp);

        for (; (i & 0xE) != 0xE; i-=2){
            b[i+1] = temp[i>>1];
            b[i] = b[i>>1];
        }
        for (i-=14; i>=0; i-=16){
            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"
                "punpckldq   (%2), %%mm0       \n\t"
                "punpckldq  8(%2), %%mm2       \n\t"
                "punpckldq 16(%2), %%mm4       \n\t"
                "punpckldq 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"
                "punpckhdq   (%2), %%mm1       \n\t"
                "punpckhdq  8(%2), %%mm3       \n\t"
                "punpckhdq 16(%2), %%mm5       \n\t"
                "punpckhdq 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"
               );
        }
    }
}

#define snow_vertical_compose_sse2_load_add(op,r,t0,t1,t2,t3)\
        ""op" (%%"r",%%"REG_d",4), %%"t0"      \n\t"\
        ""op" 16(%%"r",%%"REG_d",4), %%"t1"    \n\t"\
        ""op" 32(%%"r",%%"REG_d",4), %%"t2"    \n\t"\
        ""op" 48(%%"r",%%"REG_d",4), %%"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("paddd",r,t0,t1,t2,t3)

#define snow_vertical_compose_sse2_sub(s0,s1,s2,s3,t0,t1,t2,t3)\
        "psubd %%"s0", %%"t0" \n\t"\
        "psubd %%"s1", %%"t1" \n\t"\
        "psubd %%"s2", %%"t2" \n\t"\
        "psubd %%"s3", %%"t3" \n\t"

#define snow_vertical_compose_sse2_store(w,s0,s1,s2,s3)\
        "movdqa %%"s0", (%%"w",%%"REG_d",4)      \n\t"\
        "movdqa %%"s1", 16(%%"w",%%"REG_d",4)    \n\t"\
        "movdqa %%"s2", 32(%%"w",%%"REG_d",4)    \n\t"\
        "movdqa %%"s3", 48(%%"w",%%"REG_d",4)    \n\t"

#define snow_vertical_compose_sse2_sra(n,t0,t1,t2,t3)\
        "psrad $"n", %%"t0" \n\t"\
        "psrad $"n", %%"t1" \n\t"\
        "psrad $"n", %%"t2" \n\t"\
        "psrad $"n", %%"t3" \n\t"

#define snow_vertical_compose_sse2_r2r_add(s0,s1,s2,s3,t0,t1,t2,t3)\
        "paddd %%"s0", %%"t0" \n\t"\
        "paddd %%"s1", %%"t1" \n\t"\
        "paddd %%"s2", %%"t2" \n\t"\
        "paddd %%"s3", %%"t3" \n\t"

#define snow_vertical_compose_sse2_sll(n,t0,t1,t2,t3)\
        "pslld $"n", %%"t0" \n\t"\
        "pslld $"n", %%"t1" \n\t"\
        "pslld $"n", %%"t2" \n\t"\
        "pslld $"n", %%"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(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTELEM *b3, DWTELEM *b4, DWTELEM *b5, int width){
    long i = width;

    while(i & 0xF)
    {
        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;
    }

         asm volatile (
        "jmp 2f                                      \n\t"
        "1:                                          \n\t"

        "mov %6, %%"REG_a"                           \n\t"
        "mov %4, %%"REG_b"                           \n\t"

        snow_vertical_compose_sse2_load(REG_b,"xmm0","xmm2","xmm4","xmm6")
        snow_vertical_compose_sse2_add(REG_a,"xmm0","xmm2","xmm4","xmm6")
        snow_vertical_compose_sse2_move("xmm0","xmm2","xmm4","xmm6","xmm1","xmm3","xmm5","xmm7")
        snow_vertical_compose_sse2_sll("1","xmm0","xmm2","xmm4","xmm6")\
        snow_vertical_compose_sse2_r2r_add("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")

        "pcmpeqd %%xmm1, %%xmm1                      \n\t"
        "pslld $31, %%xmm1                           \n\t"
        "psrld $29, %%xmm1                           \n\t"
        "mov %5, %%"REG_a"                           \n\t"

        snow_vertical_compose_sse2_r2r_add("xmm1","xmm1","xmm1","xmm1","xmm0","xmm2","xmm4","xmm6")
        snow_vertical_compose_sse2_sra("3","xmm0","xmm2","xmm4","xmm6")
        snow_vertical_compose_sse2_load(REG_a,"xmm1","xmm3","xmm5","xmm7")
        snow_vertical_compose_sse2_sub("xmm0","xmm2","xmm4","xmm6","xmm1","xmm3","xmm5","xmm7")
        snow_vertical_compose_sse2_store(REG_a,"xmm1","xmm3","xmm5","xmm7")
        "mov %3, %%"REG_c"                           \n\t"
        snow_vertical_compose_sse2_load(REG_b,"xmm0","xmm2","xmm4","xmm6")
        snow_vertical_compose_sse2_add(REG_c,"xmm1","xmm3","xmm5","xmm7")
        snow_vertical_compose_sse2_sub("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")
        snow_vertical_compose_sse2_store(REG_b,"xmm0","xmm2","xmm4","xmm6")
        "mov %2, %%"REG_a"                           \n\t"
        snow_vertical_compose_sse2_load(REG_c,"xmm1","xmm3","xmm5","xmm7")
        snow_vertical_compose_sse2_add(REG_a,"xmm0","xmm2","xmm4","xmm6")
        snow_vertical_compose_sse2_sll("2","xmm1","xmm3","xmm5","xmm7")\
        snow_vertical_compose_sse2_r2r_add("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")

        "pcmpeqd %%xmm1, %%xmm1                      \n\t"
        "pslld $31, %%xmm1                           \n\t"
        "psrld $28, %%xmm1                           \n\t"
        "mov %1, %%"REG_b"                           \n\t"

        snow_vertical_compose_sse2_r2r_add("xmm1","xmm1","xmm1","xmm1","xmm0","xmm2","xmm4","xmm6")
        snow_vertical_compose_sse2_sra("4","xmm0","xmm2","xmm4","xmm6")
        snow_vertical_compose_sse2_add(REG_c,"xmm0","xmm2","xmm4","xmm6")
        snow_vertical_compose_sse2_store(REG_c,"xmm0","xmm2","xmm4","xmm6")
        snow_vertical_compose_sse2_add(REG_b,"xmm0","xmm2","xmm4","xmm6")
        snow_vertical_compose_sse2_move("xmm0","xmm2","xmm4","xmm6","xmm1","xmm3","xmm5","xmm7")
        snow_vertical_compose_sse2_sll("1","xmm0","xmm2","xmm4","xmm6")\
        snow_vertical_compose_sse2_r2r_add("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")
        snow_vertical_compose_sse2_sra("1","xmm0","xmm2","xmm4","xmm6")
        snow_vertical_compose_sse2_add(REG_a,"xmm0","xmm2","xmm4","xmm6")
        snow_vertical_compose_sse2_store(REG_a,"xmm0","xmm2","xmm4","xmm6")

        "2:                                          \n\t"
        "sub $16, %%"REG_d"                          \n\t"
        "jge 1b                                      \n\t"
        :"+d"(i)
        :
        "m"(b0),"m"(b1),"m"(b2),"m"(b3),"m"(b4),"m"(b5):
        "%"REG_a"","%"REG_b"","%"REG_c"");
}

#define snow_vertical_compose_mmx_load_add(op,r,t0,t1,t2,t3)\
        ""op" (%%"r",%%"REG_d",4), %%"t0"   \n\t"\
        ""op" 8(%%"r",%%"REG_d",4), %%"t1"  \n\t"\
        ""op" 16(%%"r",%%"REG_d",4), %%"t2" \n\t"\
        ""op" 24(%%"r",%%"REG_d",4), %%"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("paddd",r,t0,t1,t2,t3)

#define snow_vertical_compose_mmx_sub(s0,s1,s2,s3,t0,t1,t2,t3)\
        snow_vertical_compose_sse2_sub(s0,s1,s2,s3,t0,t1,t2,t3)

#define snow_vertical_compose_mmx_store(w,s0,s1,s2,s3)\
        "movq %%"s0", (%%"w",%%"REG_d",4)   \n\t"\
        "movq %%"s1", 8(%%"w",%%"REG_d",4)  \n\t"\
        "movq %%"s2", 16(%%"w",%%"REG_d",4) \n\t"\
        "movq %%"s3", 24(%%"w",%%"REG_d",4) \n\t"

#define snow_vertical_compose_mmx_sra(n,t0,t1,t2,t3)\
        snow_vertical_compose_sse2_sra(n,t0,t1,t2,t3)

#define snow_vertical_compose_mmx_r2r_add(s0,s1,s2,s3,t0,t1,t2,t3)\
        snow_vertical_compose_sse2_r2r_add(s0,s1,s2,s3,t0,t1,t2,t3)

#define snow_vertical_compose_mmx_sll(n,t0,t1,t2,t3)\
        snow_vertical_compose_sse2_sll(n,t0,t1,t2,t3)

#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(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTELEM *b3, DWTELEM *b4, DWTELEM *b5, int width){
    long i = width;
    while(i & 0x7)
    {
        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;
    }

    asm volatile(
        "jmp 2f                                      \n\t"
        "1:                                          \n\t"

        "mov %6, %%"REG_a"                           \n\t"
        "mov %4, %%"REG_b"                           \n\t"

        snow_vertical_compose_mmx_load(REG_b,"mm0","mm2","mm4","mm6")
        snow_vertical_compose_mmx_add(REG_a,"mm0","mm2","mm4","mm6")
        snow_vertical_compose_mmx_move("mm0","mm2","mm4","mm6","mm1","mm3","mm5","mm7")
        snow_vertical_compose_mmx_sll("1","mm0","mm2","mm4","mm6")
        snow_vertical_compose_mmx_r2r_add("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6")

        "pcmpeqd %%mm1, %%mm1                        \n\t"
        "pslld $31, %%mm1                            \n\t"
        "psrld $29, %%mm1                            \n\t"
        "mov %5, %%"REG_a"                           \n\t"

        snow_vertical_compose_mmx_r2r_add("mm1","mm1","mm1","mm1","mm0","mm2","mm4","mm6")
        snow_vertical_compose_mmx_sra("3","mm0","mm2","mm4","mm6")
        snow_vertical_compose_mmx_load(REG_a,"mm1","mm3","mm5","mm7")
        snow_vertical_compose_mmx_sub("mm0","mm2","mm4","mm6","mm1","mm3","mm5","mm7")
        snow_vertical_compose_mmx_store(REG_a,"mm1","mm3","mm5","mm7")
        "mov %3, %%"REG_c"                           \n\t"
        snow_vertical_compose_mmx_load(REG_b,"mm0","mm2","mm4","mm6")
        snow_vertical_compose_mmx_add(REG_c,"mm1","mm3","mm5","mm7")
        snow_vertical_compose_mmx_sub("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6")
        snow_vertical_compose_mmx_store(REG_b,"mm0","mm2","mm4","mm6")
        "mov %2, %%"REG_a"                           \n\t"
        snow_vertical_compose_mmx_load(REG_c,"mm1","mm3","mm5","mm7")
        snow_vertical_compose_mmx_add(REG_a,"mm0","mm2","mm4","mm6")
        snow_vertical_compose_mmx_sll("2","mm1","mm3","mm5","mm7")
        snow_vertical_compose_mmx_r2r_add("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6")

        "pcmpeqd %%mm1, %%mm1                        \n\t"
        "pslld $31, %%mm1                            \n\t"
        "psrld $28, %%mm1                            \n\t"
        "mov %1, %%"REG_b"                           \n\t"

        snow_vertical_compose_mmx_r2r_add("mm1","mm1","mm1","mm1","mm0","mm2","mm4","mm6")
        snow_vertical_compose_mmx_sra("4","mm0","mm2","mm4","mm6")
        snow_vertical_compose_mmx_add(REG_c,"mm0","mm2","mm4","mm6")
        snow_vertical_compose_mmx_store(REG_c,"mm0","mm2","mm4","mm6")
        snow_vertical_compose_mmx_add(REG_b,"mm0","mm2","mm4","mm6")
        snow_vertical_compose_mmx_move("mm0","mm2","mm4","mm6","mm1","mm3","mm5","mm7")