[libav.git] / libavcodec / i386 / mpegvideo_mmx_template.c

/*
 * MPEG video MMX templates
 *
 * Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#undef MMREG_WIDTH
#undef MM
#undef MOVQ
#undef SPREADW
#undef PMAXW
#undef PMAX
#undef SAVE_SIGN
#undef RESTORE_SIGN

#if defined(HAVE_SSE2)
#define MMREG_WIDTH "16"
#define MM "%%xmm"
#define MOVQ "movdqa"
#define SPREADW(a) \
            "pshuflw $0, "a", "a"       \n\t"\
            "punpcklwd "a", "a"         \n\t"
#define PMAXW(a,b) "pmaxsw "a", "b"     \n\t"
#define PMAX(a,b) \
            "movhlps "a", "b"           \n\t"\
            PMAXW(b, a)\
            "pshuflw $0x0E, "a", "b"    \n\t"\
            PMAXW(b, a)\
            "pshuflw $0x01, "a", "b"    \n\t"\
            PMAXW(b, a)
#else
#define MMREG_WIDTH "8"
#define MM "%%mm"
#define MOVQ "movq"
#if defined(HAVE_MMX2)
#define SPREADW(a) "pshufw $0, "a", "a" \n\t"
#define PMAXW(a,b) "pmaxsw "a", "b"     \n\t"
#define PMAX(a,b) \
            "pshufw $0x0E, "a", "b"     \n\t"\
            PMAXW(b, a)\
            "pshufw $0x01, "a", "b"     \n\t"\
            PMAXW(b, a)
#else
#define SPREADW(a) \
            "punpcklwd "a", "a"         \n\t"\
            "punpcklwd "a", "a"         \n\t"
#define PMAXW(a,b) \
            "psubusw "a", "b"           \n\t"\
            "paddw "a", "b"             \n\t"
#define PMAX(a,b)  \
            "movq "a", "b"              \n\t"\
            "psrlq $32, "a"             \n\t"\
            PMAXW(b, a)\
            "movq "a", "b"              \n\t"\
            "psrlq $16, "a"             \n\t"\
            PMAXW(b, a)

#endif
#endif

#ifdef HAVE_SSSE3
#define SAVE_SIGN(a,b) \
            "movdqa "b", "a"            \n\t"\
            "pabsw  "b", "b"            \n\t"
#define RESTORE_SIGN(a,b) \
            "psignw "a", "b"            \n\t"
#else
#define SAVE_SIGN(a,b) \
            "pxor "a", "a"              \n\t"\
            "pcmpgtw "b", "a"           \n\t" /* block[i] <= 0 ? 0xFF : 0x00 */\
            "pxor "a", "b"              \n\t"\
            "psubw "a", "b"             \n\t" /* ABS(block[i]) */
#define RESTORE_SIGN(a,b) \
            "pxor "a", "b"              \n\t"\
            "psubw "a", "b"             \n\t" // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
#endif

static int RENAME(dct_quantize)(MpegEncContext *s,
                            DCTELEM *block, int n,
                            int qscale, int *overflow)
{
    long last_non_zero_p1;
    int level=0, q; //=0 is because gcc says uninitialized ...
    const uint16_t *qmat, *bias;
    DECLARE_ALIGNED_16(int16_t, temp_block[64]);

    assert((7&(int)(&temp_block[0])) == 0); //did gcc align it correctly?

    //s->fdct (block);
    RENAMEl(ff_fdct) (block); //cannot be anything else ...

    if(s->dct_error_sum)
        s->denoise_dct(s, block);

    if (s->mb_intra) {
        int dummy;
        if (n < 4)
            q = s->y_dc_scale;
        else
            q = s->c_dc_scale;
        /* note: block[0] is assumed to be positive */
        if (!s->h263_aic) {
#if 1
        asm volatile (
                "mul %%ecx                \n\t"
                : "=d" (level), "=a"(dummy)
                : "a" ((block[0]>>2) + q), "c" (ff_inverse[q<<1])
        );
#else
        asm volatile (
                "xorl %%edx, %%edx        \n\t"
                "divw %%cx                \n\t"
                "movzwl %%ax, %%eax       \n\t"
                : "=a" (level)
                : "a" ((block[0]>>2) + q), "c" (q<<1)
                : "%edx"
        );
#endif
        } else
            /* For AIC we skip quant/dequant of INTRADC */
            level = (block[0] + 4)>>3;

        block[0]=0; //avoid fake overflow
//        temp_block[0] = (block[0] + (q >> 1)) / q;
        last_non_zero_p1 = 1;
        bias = s->q_intra_matrix16[qscale][1];
        qmat = s->q_intra_matrix16[qscale][0];
    } else {
        last_non_zero_p1 = 0;
        bias = s->q_inter_matrix16[qscale][1];
        qmat = s->q_inter_matrix16[qscale][0];
    }

    if((s->out_format == FMT_H263 || s->out_format == FMT_H261) && s->mpeg_quant==0){

        asm volatile(
            "movd %%"REG_a", "MM"3              \n\t" // last_non_zero_p1
            SPREADW(MM"3")
            "pxor "MM"7, "MM"7                  \n\t" // 0
            "pxor "MM"4, "MM"4                  \n\t" // 0
            MOVQ" (%2), "MM"5                   \n\t" // qmat[0]
            "pxor "MM"6, "MM"6                  \n\t"
            "psubw (%3), "MM"6                  \n\t" // -bias[0]
            "mov $-128, %%"REG_a"               \n\t"
            ASMALIGN(4)
            "1:                                 \n\t"
            MOVQ" (%1, %%"REG_a"), "MM"0        \n\t" // block[i]
            SAVE_SIGN(MM"1", MM"0")                   // ABS(block[i])
            "psubusw "MM"6, "MM"0               \n\t" // ABS(block[i]) + bias[0]
            "pmulhw "MM"5, "MM"0                \n\t" // (ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16
            "por "MM"0, "MM"4                   \n\t"
            RESTORE_SIGN(MM"1", MM"0")                // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
            MOVQ" "MM"0, (%5, %%"REG_a")        \n\t"
            "pcmpeqw "MM"7, "MM"0               \n\t" // out==0 ? 0xFF : 0x00
            MOVQ" (%4, %%"REG_a"), "MM"1        \n\t"
            MOVQ" "MM"7, (%1, %%"REG_a")        \n\t" // 0
            "pandn "MM"1, "MM"0                 \n\t"
            PMAXW(MM"0", MM"3")
            "add $"MMREG_WIDTH", %%"REG_a"      \n\t"
            " js 1b                             \n\t"
            PMAX(MM"3", MM"0")
            "movd "MM"3, %%"REG_a"              \n\t"
            "movzb %%al, %%"REG_a"              \n\t" // last_non_zero_p1
            : "+a" (last_non_zero_p1)
            : "r" (block+64), "r" (qmat), "r" (bias),
              "r" (inv_zigzag_direct16+64), "r" (temp_block+64)
        );
    }else{ // FMT_H263
        asm volatile(
            "movd %%"REG_a", "MM"3              \n\t" // last_non_zero_p1
            SPREADW(MM"3")
            "pxor "MM"7, "MM"7                  \n\t" // 0
            "pxor "MM"4, "MM"4                  \n\t" // 0
            "mov $-128, %%"REG_a"               \n\t"
            ASMALIGN(4)
            "1:                                 \n\t"
            MOVQ" (%1, %%"REG_a"), "MM"0        \n\t" // block[i]
            SAVE_SIGN(MM"1", MM"0")                   // ABS(block[i])
            MOVQ" (%3, %%"REG_a"), "MM"6        \n\t" // bias[0]
            "paddusw "MM"6, "MM"0               \n\t" // ABS(block[i]) + bias[0]
            MOVQ" (%2, %%"REG_a"), "MM"5        \n\t" // qmat[i]
            "pmulhw "MM"5, "MM"0                \n\t" // (ABS(block[i])*qmat[0] + bias[0]*qmat[0])>>16
            "por "MM"0, "MM"4                   \n\t"
            RESTORE_SIGN(MM"1", MM"0")                // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
            MOVQ" "MM"0, (%5, %%"REG_a")        \n\t"
            "pcmpeqw "MM"7, "MM"0               \n\t" // out==0 ? 0xFF : 0x00
            MOVQ" (%4, %%"REG_a"), "MM"1        \n\t"
            MOVQ" "MM"7, (%1, %%"REG_a")        \n\t" // 0
            "pandn "MM"1, "MM"0                 \n\t"
            PMAXW(MM"0", MM"3")
            "add $"MMREG_WIDTH", %%"REG_a"      \n\t"
            " js 1b                             \n\t"
            PMAX(MM"3", MM"0")
            "movd "MM"3, %%"REG_a"              \n\t"
            "movzb %%al, %%"REG_a"              \n\t" // last_non_zero_p1
            : "+a" (last_non_zero_p1)
            : "r" (block+64), "r" (qmat+64), "r" (bias+64),
              "r" (inv_zigzag_direct16+64), "r" (temp_block+64)
        );
    }
    asm volatile(
        "movd %1, "MM"1                     \n\t" // max_qcoeff
        SPREADW(MM"1")
        "psubusw "MM"1, "MM"4               \n\t"
        "packuswb "MM"4, "MM"4              \n\t"
#ifdef HAVE_SSE2
        "packuswb "MM"4, "MM"4              \n\t"
#endif
        "movd "MM"4, %0                     \n\t" // *overflow
        : "=g" (*overflow)
        : "g" (s->max_qcoeff)
    );

    if(s->mb_intra) block[0]= level;
    else            block[0]= temp_block[0];

    if(s->dsp.idct_permutation_type == FF_SIMPLE_IDCT_PERM){
        if(last_non_zero_p1 <= 1) goto end;
        block[0x08] = temp_block[0x01]; block[0x10] = temp_block[0x08];
        block[0x20] = temp_block[0x10];
        if(last_non_zero_p1 <= 4) goto end;
        block[0x18] = temp_block[0x09]; block[0x04] = temp_block[0x02];
        block[0x09] = temp_block[0x03];
        if(last_non_zero_p1 <= 7) goto end;
        block[0x14] = temp_block[0x0A]; block[0x28] = temp_block[0x11];
        block[0x12] = temp_block[0x18]; block[0x02] = temp_block[0x20];
        if(last_non_zero_p1 <= 11) goto end;
        block[0x1A] = temp_block[0x19]; block[0x24] = temp_block[0x12];
        block[0x19] = temp_block[0x0B]; block[0x01] = temp_block[0x04];
        block[0x0C] = temp_block[0x05];
        if(last_non_zero_p1 <= 16) goto end;
        block[0x11] = temp_block[0x0C]; block[0x29] = temp_block[0x13];
        block[0x16] = temp_block[0x1A]; block[0x0A] = temp_block[0x21];
        block[0x30] = temp_block[0x28]; block[0x22] = temp_block[0x30];
        block[0x38] = temp_block[0x29]; block[0x06] = temp_block[0x22];
        if(last_non_zero_p1 <= 24) goto end;
        block[0x1B] = temp_block[0x1B]; block[0x21] = temp_block[0x14];
        block[0x1C] = temp_block[0x0D]; block[0x05] = temp_block[0x06];
        block[0x0D] = temp_block[0x07]; block[0x15] = temp_block[0x0E];
        block[0x2C] = temp_block[0x15]; block[0x13] = temp_block[0x1C];
        if(last_non_zero_p1 <= 32) goto end;
        block[0x0B] = temp_block[0x23]; block[0x34] = temp_block[0x2A];
        block[0x2A] = temp_block[0x31]; block[0x32] = temp_block[0x38];
        block[0x3A] = temp_block[0x39]; block[0x26] = temp_block[0x32];
        block[0x39] = temp_block[0x2B]; block[0x03] = temp_block[0x24];
        if(last_non_zero_p1 <= 40) goto end;
        block[0x1E] = temp_block[0x1D]; block[0x25] = temp_block[0x16];
        block[0x1D] = temp_block[0x0F]; block[0x2D] = temp_block[0x17];
        block[0x17] = temp_block[0x1E]; block[0x0E] = temp_block[0x25];
        block[0x31] = temp_block[0x2C]; block[0x2B] = temp_block[0x33];
        if(last_non_zero_p1 <= 48) goto end;
        block[0x36] = temp_block[0x3A]; block[0x3B] = temp_block[0x3B];
        block[0x23] = temp_block[0x34]; block[0x3C] = temp_block[0x2D];
        block[0x07] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];
        block[0x0F] = temp_block[0x27]; block[0x35] = temp_block[0x2E];
        if(last_non_zero_p1 <= 56) goto end;
        block[0x2E] = temp_block[0x35]; block[0x33] = temp_block[0x3C];
        block[0x3E] = temp_block[0x3D]; block[0x27] = temp_block[0x36];
        block[0x3D] = temp_block[0x2F]; block[0x2F] = temp_block[0x37];
        block[0x37] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
    }else if(s->dsp.idct_permutation_type == FF_LIBMPEG2_IDCT_PERM){
        if(last_non_zero_p1 <= 1) goto end;
        block[0x04] = temp_block[0x01];
        block[0x08] = temp_block[0x08]; block[0x10] = temp_block[0x10];
        if(last_non_zero_p1 <= 4) goto end;
        block[0x0C] = temp_block[0x09]; block[0x01] = temp_block[0x02];
        block[0x05] = temp_block[0x03];
        if(last_non_zero_p1 <= 7) goto end;
        block[0x09] = temp_block[0x0A]; block[0x14] = temp_block[0x11];
        block[0x18] = temp_block[0x18]; block[0x20] = temp_block[0x20];
        if(last_non_zero_p1 <= 11) goto end;
        block[0x1C] = temp_block[0x19];
        block[0x11] = temp_block[0x12]; block[0x0D] = temp_block[0x0B];
        block[0x02] = temp_block[0x04]; block[0x06] = temp_block[0x05];
        if(last_non_zero_p1 <= 16) goto end;
        block[0x0A] = temp_block[0x0C]; block[0x15] = temp_block[0x13];
        block[0x19] = temp_block[0x1A]; block[0x24] = temp_block[0x21];
        block[0x28] = temp_block[0x28]; block[0x30] = temp_block[0x30];
        block[0x2C] = temp_block[0x29]; block[0x21] = temp_block[0x22];
        if(last_non_zero_p1 <= 24) goto end;
        block[0x1D] = temp_block[0x1B]; block[0x12] = temp_block[0x14];
        block[0x0E] = temp_block[0x0D]; block[0x03] = temp_block[0x06];
        block[0x07] = temp_block[0x07]; block[0x0B] = temp_block[0x0E];
        block[0x16] = temp_block[0x15]; block[0x1A] = temp_block[0x1C];
        if(last_non_zero_p1 <= 32) goto end;
        block[0x25] = temp_block[0x23]; block[0x29] = temp_block[0x2A];
        block[0x34] = temp_block[0x31]; block[0x38] = temp_block[0x38];
        block[0x3C] = temp_block[0x39]; block[0x31] = temp_block[0x32];
        block[0x2D] = temp_block[0x2B]; block[0x22] = temp_block[0x24];
        if(last_non_zero_p1 <= 40) goto end;
        block[0x1E] = temp_block[0x1D]; block[0x13] = temp_block[0x16];
        block[0x0F] = temp_block[0x0F]; block[0x17] = temp_block[0x17];
        block[0x1B] = temp_block[0x1E]; block[0x26] = temp_block[0x25];
        block[0x2A] = temp_block[0x2C]; block[0x35] = temp_block[0x33];
        if(last_non_zero_p1 <= 48) goto end;
        block[0x39] = temp_block[0x3A]; block[0x3D] = temp_block[0x3B];
        block[0x32] = temp_block[0x34]; block[0x2E] = temp_block[0x2D];
            block[0x23] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];
        block[0x27] = temp_block[0x27]; block[0x2B] = temp_block[0x2E];
        if(last_non_zero_p1 <= 56) goto end;
        block[0x36] = temp_block[0x35]; block[0x3A] = temp_block[0x3C];
        block[0x3E] = temp_block[0x3D]; block[0x33] = temp_block[0x36];
        block[0x2F] = temp_block[0x2F]; block[0x37] = temp_block[0x37];
        block[0x3B] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
    }else{
        if(last_non_zero_p1 <= 1) goto end;
        block[0x01] = temp_block[0x01];
        block[0x08] = temp_block[0x08]; block[0x10] = temp_block[0x10];
        if(last_non_zero_p1 <= 4) goto end;
        block[0x09] = temp_block[0x09]; block[0x02] = temp_block[0x02];
        block[0x03] = temp_block[0x03];
        if(last_non_zero_p1 <= 7) goto end;
        block[0x0A] = temp_block[0x0A]; block[0x11] = temp_block[0x11];
        block[0x18] = temp_block[0x18]; block[0x20] = temp_block[0x20];
        if(last_non_zero_p1 <= 11) goto end;
        block[0x19] = temp_block[0x19];
        block[0x12] = temp_block[0x12]; block[0x0B] = temp_block[0x0B];
        block[0x04] = temp_block[0x04]; block[0x05] = temp_block[0x05];
        if(last_non_zero_p1 <= 16) goto end;
        block[0x0C] = temp_block[0x0C]; block[0x13] = temp_block[0x13];
        block[0x1A] = temp_block[0x1A]; block[0x21] = temp_block[0x21];
        block[0x28] = temp_block[0x28]; block[0x30] = temp_block[0x30];
        block[0x29] = temp_block[0x29]; block[0x22] = temp_block[0x22];
        if(last_non_zero_p1 <= 24) goto end;
        block[0x1B] = temp_block[0x1B]; block[0x14] = temp_block[0x14];
        block[0x0D] = temp_block[0x0D]; block[0x06] = temp_block[0x06];
        block[0x07] = temp_block[0x07]; block[0x0E] = temp_block[0x0E];
        block[0x15] = temp_block[0x15]; block[0x1C] = temp_block[0x1C];
        if(last_non_zero_p1 <= 32) goto end;
        block[0x23] = temp_block[0x23]; block[0x2A] = temp_block[0x2A];
        block[0x31] = temp_block[0x31]; block[0x38] = temp_block[0x38];
        block[0x39] = temp_block[0x39]; block[0x32] = temp_block[0x32];
        block[0x2B] = temp_block[0x2B]; block[0x24] = temp_block[0x24];
        if(last_non_zero_p1 <= 40) goto end;
        block[0x1D] = temp_block[0x1D]; block[0x16] = temp_block[0x16];
        block[0x0F] = temp_block[0x0F]; block[0x17] = temp_block[0x17];
        block[0x1E] = temp_block[0x1E]; block[0x25] = temp_block[0x25];
        block[0x2C] = temp_block[0x2C]; block[0x33] = temp_block[0x33];
        if(last_non_zero_p1 <= 48) goto end;
        block[0x3A] = temp_block[0x3A]; block[0x3B] = temp_block[0x3B];
        block[0x34] = temp_block[0x34]; block[0x2D] = temp_block[0x2D];
        block[0x26] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];
        block[0x27] = temp_block[0x27]; block[0x2E] = temp_block[0x2E];
        if(last_non_zero_p1 <= 56) goto end;
        block[0x35] = temp_block[0x35]; block[0x3C] = temp_block[0x3C];
        block[0x3D] = temp_block[0x3D]; block[0x36] = temp_block[0x36];
        block[0x2F] = temp_block[0x2F]; block[0x37] = temp_block[0x37];
        block[0x3E] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
    }
    end:
/*
    for(i=0; i<last_non_zero_p1; i++)
    {
       int j= zigzag_direct_noperm[i];
       block[block_permute_op(j)]= temp_block[j];
    }
*/

    return last_non_zero_p1 - 1;
}
Commit	Line	Data
2f349de2	1	/*
ff4ec49e FB	2	* MPEG video MMX templates
	3	*
	4	* Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
	5	*
b78e7197 DB	6	* This file is part of FFmpeg.
	7	*
	8	* FFmpeg is free software; you can redistribute it and/or
ff4ec49e FB	9	* modify it under the terms of the GNU Lesser General Public
ff4ec49e FB	10	* License as published by the Free Software Foundation; either
b78e7197	11	* version 2.1 of the License, or (at your option) any later version.
ff4ec49e	12	*
b78e7197	13	* FFmpeg is distributed in the hope that it will be useful,
ff4ec49e FB	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	16	* Lesser General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU Lesser General Public
b78e7197	19	* License along with FFmpeg; if not, write to the Free Software
5509bffa	20	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
ff4ec49e	21	*/
ff506a90 LM	22
	23	#undef MMREG_WIDTH
	24	#undef MM
	25	#undef MOVQ
2f349de2 MN	26	#undef SPREADW
2f349de2 MN	27	#undef PMAXW
8fb0d073	28	#undef PMAX
ff506a90 LM	29	#undef SAVE_SIGN
	30	#undef RESTORE_SIGN
	31
	32	#if defined(HAVE_SSE2)
	33	#define MMREG_WIDTH "16"
	34	#define MM "%%xmm"
	35	#define MOVQ "movdqa"
	36	#define SPREADW(a) \
	37	"pshuflw $0, "a", "a" \n\t"\
	38	"punpcklwd "a", "a" \n\t"
	39	#define PMAXW(a,b) "pmaxsw "a", "b" \n\t"
12e96681	40	#define PMAX(a,b) \
ff506a90	41	"movhlps "a", "b" \n\t"\
bb270c08	42	PMAXW(b, a)\
ff506a90 LM	43	"pshuflw $0x0E, "a", "b" \n\t"\
	44	PMAXW(b, a)\
	45	"pshuflw $0x01, "a", "b" \n\t"\
	46	PMAXW(b, a)
	47	#else
	48	#define MMREG_WIDTH "8"
	49	#define MM "%%mm"
	50	#define MOVQ "movq"
	51	#if defined(HAVE_MMX2)
	52	#define SPREADW(a) "pshufw $0, "a", "a" \n\t"
	53	#define PMAXW(a,b) "pmaxsw "a", "b" \n\t"
	54	#define PMAX(a,b) \
	55	"pshufw $0x0E, "a", "b" \n\t"\
	56	PMAXW(b, a)\
	57	"pshufw $0x01, "a", "b" \n\t"\
bb270c08	58	PMAXW(b, a)
2f349de2 MN	59	#else
2f349de2 MN	60	#define SPREADW(a) \
ff506a90 LM	61	"punpcklwd "a", "a" \n\t"\
ff506a90 LM	62	"punpcklwd "a", "a" \n\t"
2f349de2	63	#define PMAXW(a,b) \
ff506a90 LM	64	"psubusw "a", "b" \n\t"\
ff506a90 LM	65	"paddw "a", "b" \n\t"
12e96681	66	#define PMAX(a,b) \
ff506a90 LM	67	"movq "a", "b" \n\t"\
ff506a90 LM	68	"psrlq $32, "a" \n\t"\
bb270c08	69	PMAXW(b, a)\
ff506a90 LM	70	"movq "a", "b" \n\t"\
ff506a90 LM	71	"psrlq $16, "a" \n\t"\
bb270c08	72	PMAXW(b, a)
12e96681	73
2f349de2	74	#endif
ff506a90 LM	75	#endif
	76
	77	#ifdef HAVE_SSSE3
	78	#define SAVE_SIGN(a,b) \
	79	"movdqa "b", "a" \n\t"\
	80	"pabsw "b", "b" \n\t"
	81	#define RESTORE_SIGN(a,b) \
	82	"psignw "a", "b" \n\t"
	83	#else
	84	#define SAVE_SIGN(a,b) \
	85	"pxor "a", "a" \n\t"\
	86	"pcmpgtw "b", "a" \n\t" /* block[i] <= 0 ? 0xFF : 0x00 */\
	87	"pxor "a", "b" \n\t"\
	88	"psubw "a", "b" \n\t" /* ABS(block[i]) */
	89	#define RESTORE_SIGN(a,b) \
	90	"pxor "a", "b" \n\t"\
	91	"psubw "a", "b" \n\t" // out=((ABS(block[i])qmat[0] - bias[0]qmat[0])>>16)*sign(block[i])
	92	#endif
2f349de2 MN	93
	94	static int RENAME(dct_quantize)(MpegEncContext *s,
	95	DCTELEM *block, int n,
d7e9533a	96	int qscale, int *overflow)
2f349de2	97	{
053dea12	98	long last_non_zero_p1;
04932b0d	99	int level=0, q; //=0 is because gcc says uninitialized ...
0c1a9eda	100	const uint16_t qmat, bias;
ff506a90	101	DECLARE_ALIGNED_16(int16_t, temp_block[64]);
115329f1	102
f8188626	103	assert((7&(int)(&temp_block[0])) == 0); //did gcc align it correctly?
2f349de2	104
28db7fce	105	//s->fdct (block);
755bfeab	106	RENAMEl(ff_fdct) (block); //cannot be anything else ...
d7e9533a	107
821cb11f	108	if(s->dct_error_sum)
783df5f3	109	s->denoise_dct(s, block);
821cb11f	110
2f349de2 MN	111	if (s->mb_intra) {
	112	int dummy;
	113	if (n < 4)
1a684b3d	114	q = s->y_dc_scale;
2f349de2	115	else
1a684b3d	116	q = s->c_dc_scale;
2f349de2	117	/* note: block[0] is assumed to be positive */
ef5b1b5a	118	if (!s->h263_aic) {
2f349de2	119	#if 1
d7e9533a	120	asm volatile (
bb270c08 DB	121	"mul %%ecx \n\t"
bb270c08 DB	122	: "=d" (level), "=a"(dummy)
36cd3069	123	: "a" ((block[0]>>2) + q), "c" (ff_inverse[q<<1])
d7e9533a	124	);
2f349de2	125	#else
d7e9533a	126	asm volatile (
bb270c08 DB	127	"xorl %%edx, %%edx \n\t"
	128	"divw %%cx \n\t"
	129	"movzwl %%ax, %%eax \n\t"
	130	: "=a" (level)
	131	: "a" ((block[0]>>2) + q), "c" (q<<1)
	132	: "%edx"
d7e9533a	133	);
2f349de2	134	#endif
ef5b1b5a J	135	} else
ef5b1b5a J	136	/* For AIC we skip quant/dequant of INTRADC */
1a684b3d	137	level = (block[0] + 4)>>3;
115329f1	138
d7e9533a	139	block[0]=0; //avoid fake overflow
2f349de2	140	// temp_block[0] = (block[0] + (q >> 1)) / q;
2f349de2	141	last_non_zero_p1 = 1;
642ccefb MN	142	bias = s->q_intra_matrix16[qscale][1];
642ccefb MN	143	qmat = s->q_intra_matrix16[qscale][0];
2f349de2	144	} else {
2f349de2	145	last_non_zero_p1 = 0;
642ccefb MN	146	bias = s->q_inter_matrix16[qscale][1];
642ccefb MN	147	qmat = s->q_inter_matrix16[qscale][0];
2f349de2 MN	148	}
2f349de2 MN	149
1c3990db	150	if((s->out_format == FMT_H263 \|\| s->out_format == FMT_H261) && s->mpeg_quant==0){
115329f1	151
d7e9533a	152	asm volatile(
ff506a90 LM	153	"movd %%"REG_a", "MM"3 \n\t" // last_non_zero_p1
	154	SPREADW(MM"3")
	155	"pxor "MM"7, "MM"7 \n\t" // 0
	156	"pxor "MM"4, "MM"4 \n\t" // 0
	157	MOVQ" (%2), "MM"5 \n\t" // qmat[0]
	158	"pxor "MM"6, "MM"6 \n\t"
	159	"psubw (%3), "MM"6 \n\t" // -bias[0]
bb270c08	160	"mov $-128, %%"REG_a" \n\t"
4454dc1b	161	ASMALIGN(4)
bb270c08	162	"1: \n\t"
ff506a90 LM	163	MOVQ" (%1, %%"REG_a"), "MM"0 \n\t" // block[i]
	164	SAVE_SIGN(MM"1", MM"0") // ABS(block[i])
	165	"psubusw "MM"6, "MM"0 \n\t" // ABS(block[i]) + bias[0]
	166	"pmulhw "MM"5, "MM"0 \n\t" // (ABS(block[i])qmat[0] - bias[0]qmat[0])>>16
	167	"por "MM"0, "MM"4 \n\t"
	168	RESTORE_SIGN(MM"1", MM"0") // out=((ABS(block[i])qmat[0] - bias[0]qmat[0])>>16)*sign(block[i])
	169	MOVQ" "MM"0, (%5, %%"REG_a") \n\t"
	170	"pcmpeqw "MM"7, "MM"0 \n\t" // out==0 ? 0xFF : 0x00
	171	MOVQ" (%4, %%"REG_a"), "MM"1 \n\t"
	172	MOVQ" "MM"7, (%1, %%"REG_a") \n\t" // 0
	173	"pandn "MM"1, "MM"0 \n\t"
	174	PMAXW(MM"0", MM"3")
	175	"add $"MMREG_WIDTH", %%"REG_a" \n\t"
bb270c08	176	" js 1b \n\t"
ff506a90 LM	177	PMAX(MM"3", MM"0")
ff506a90 LM	178	"movd "MM"3, %%"REG_a" \n\t"
bb270c08 DB	179	"movzb %%al, %%"REG_a" \n\t" // last_non_zero_p1
bb270c08 DB	180	: "+a" (last_non_zero_p1)
d04fdff1	181	: "r" (block+64), "r" (qmat), "r" (bias),
486497e0	182	"r" (inv_zigzag_direct16+64), "r" (temp_block+64)
d04fdff1	183	);
d7e9533a MN	184	}else{ // FMT_H263
d7e9533a MN	185	asm volatile(
ff506a90 LM	186	"movd %%"REG_a", "MM"3 \n\t" // last_non_zero_p1
	187	SPREADW(MM"3")
	188	"pxor "MM"7, "MM"7 \n\t" // 0
	189	"pxor "MM"4, "MM"4 \n\t" // 0
bb270c08	190	"mov $-128, %%"REG_a" \n\t"
4454dc1b	191	ASMALIGN(4)
bb270c08	192	"1: \n\t"
ff506a90 LM	193	MOVQ" (%1, %%"REG_a"), "MM"0 \n\t" // block[i]
	194	SAVE_SIGN(MM"1", MM"0") // ABS(block[i])
	195	MOVQ" (%3, %%"REG_a"), "MM"6 \n\t" // bias[0]
	196	"paddusw "MM"6, "MM"0 \n\t" // ABS(block[i]) + bias[0]
	197	MOVQ" (%2, %%"REG_a"), "MM"5 \n\t" // qmat[i]
	198	"pmulhw "MM"5, "MM"0 \n\t" // (ABS(block[i])qmat[0] + bias[0]qmat[0])>>16
	199	"por "MM"0, "MM"4 \n\t"
	200	RESTORE_SIGN(MM"1", MM"0") // out=((ABS(block[i])qmat[0] - bias[0]qmat[0])>>16)*sign(block[i])
	201	MOVQ" "MM"0, (%5, %%"REG_a") \n\t"
	202	"pcmpeqw "MM"7, "MM"0 \n\t" // out==0 ? 0xFF : 0x00
	203	MOVQ" (%4, %%"REG_a"), "MM"1 \n\t"
	204	MOVQ" "MM"7, (%1, %%"REG_a") \n\t" // 0
	205	"pandn "MM"1, "MM"0 \n\t"
	206	PMAXW(MM"0", MM"3")
	207	"add $"MMREG_WIDTH", %%"REG_a" \n\t"
bb270c08	208	" js 1b \n\t"
ff506a90 LM	209	PMAX(MM"3", MM"0")
ff506a90 LM	210	"movd "MM"3, %%"REG_a" \n\t"
bb270c08 DB	211	"movzb %%al, %%"REG_a" \n\t" // last_non_zero_p1
bb270c08 DB	212	: "+a" (last_non_zero_p1)
d04fdff1	213	: "r" (block+64), "r" (qmat+64), "r" (bias+64),
486497e0	214	"r" (inv_zigzag_direct16+64), "r" (temp_block+64)
d7e9533a	215	);
ff506a90 LM	216	}
	217	asm volatile(
	218	"movd %1, "MM"1 \n\t" // max_qcoeff
	219	SPREADW(MM"1")
	220	"psubusw "MM"1, "MM"4 \n\t"
	221	"packuswb "MM"4, "MM"4 \n\t"
	222	#ifdef HAVE_SSE2
	223	"packuswb "MM"4, "MM"4 \n\t"
	224	#endif
	225	"movd "MM"4, %0 \n\t" // *overflow
d04fdff1 ZK	226	: "=g" (*overflow)
d04fdff1 ZK	227	: "g" (s->max_qcoeff)
ff506a90	228	);
d7e9533a	229
2ad1516a MN	230	if(s->mb_intra) block[0]= level;
	231	else block[0]= temp_block[0];
	232
b0368839	233	if(s->dsp.idct_permutation_type == FF_SIMPLE_IDCT_PERM){
2ad1516a	234	if(last_non_zero_p1 <= 1) goto end;
115329f1 DB	235	block[0x08] = temp_block[0x01]; block[0x10] = temp_block[0x08];
115329f1 DB	236	block[0x20] = temp_block[0x10];
2ad1516a	237	if(last_non_zero_p1 <= 4) goto end;
115329f1 DB	238	block[0x18] = temp_block[0x09]; block[0x04] = temp_block[0x02];
115329f1 DB	239	block[0x09] = temp_block[0x03];
2ad1516a	240	if(last_non_zero_p1 <= 7) goto end;
115329f1 DB	241	block[0x14] = temp_block[0x0A]; block[0x28] = temp_block[0x11];
115329f1 DB	242	block[0x12] = temp_block[0x18]; block[0x02] = temp_block[0x20];
2ad1516a	243	if(last_non_zero_p1 <= 11) goto end;
115329f1 DB	244	block[0x1A] = temp_block[0x19]; block[0x24] = temp_block[0x12];
	245	block[0x19] = temp_block[0x0B]; block[0x01] = temp_block[0x04];
	246	block[0x0C] = temp_block[0x05];
2ad1516a	247	if(last_non_zero_p1 <= 16) goto end;
115329f1 DB	248	block[0x11] = temp_block[0x0C]; block[0x29] = temp_block[0x13];
	249	block[0x16] = temp_block[0x1A]; block[0x0A] = temp_block[0x21];
	250	block[0x30] = temp_block[0x28]; block[0x22] = temp_block[0x30];
	251	block[0x38] = temp_block[0x29]; block[0x06] = temp_block[0x22];
2ad1516a	252	if(last_non_zero_p1 <= 24) goto end;
115329f1 DB	253	block[0x1B] = temp_block[0x1B]; block[0x21] = temp_block[0x14];
	254	block[0x1C] = temp_block[0x0D]; block[0x05] = temp_block[0x06];
	255	block[0x0D] = temp_block[0x07]; block[0x15] = temp_block[0x0E];
	256	block[0x2C] = temp_block[0x15]; block[0x13] = temp_block[0x1C];
2ad1516a	257	if(last_non_zero_p1 <= 32) goto end;
115329f1 DB	258	block[0x0B] = temp_block[0x23]; block[0x34] = temp_block[0x2A];
	259	block[0x2A] = temp_block[0x31]; block[0x32] = temp_block[0x38];
	260	block[0x3A] = temp_block[0x39]; block[0x26] = temp_block[0x32];
	261	block[0x39] = temp_block[0x2B]; block[0x03] = temp_block[0x24];
2ad1516a	262	if(last_non_zero_p1 <= 40) goto end;
115329f1 DB	263	block[0x1E] = temp_block[0x1D]; block[0x25] = temp_block[0x16];
	264	block[0x1D] = temp_block[0x0F]; block[0x2D] = temp_block[0x17];
	265	block[0x17] = temp_block[0x1E]; block[0x0E] = temp_block[0x25];
	266	block[0x31] = temp_block[0x2C]; block[0x2B] = temp_block[0x33];
2ad1516a	267	if(last_non_zero_p1 <= 48) goto end;
115329f1 DB	268	block[0x36] = temp_block[0x3A]; block[0x3B] = temp_block[0x3B];
	269	block[0x23] = temp_block[0x34]; block[0x3C] = temp_block[0x2D];
	270	block[0x07] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];
	271	block[0x0F] = temp_block[0x27]; block[0x35] = temp_block[0x2E];
2ad1516a	272	if(last_non_zero_p1 <= 56) goto end;
115329f1 DB	273	block[0x2E] = temp_block[0x35]; block[0x33] = temp_block[0x3C];
	274	block[0x3E] = temp_block[0x3D]; block[0x27] = temp_block[0x36];
	275	block[0x3D] = temp_block[0x2F]; block[0x2F] = temp_block[0x37];
2ad1516a	276	block[0x37] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
b0368839	277	}else if(s->dsp.idct_permutation_type == FF_LIBMPEG2_IDCT_PERM){
2ad1516a	278	if(last_non_zero_p1 <= 1) goto end;
115329f1 DB	279	block[0x04] = temp_block[0x01];
115329f1 DB	280	block[0x08] = temp_block[0x08]; block[0x10] = temp_block[0x10];
2ad1516a	281	if(last_non_zero_p1 <= 4) goto end;
115329f1 DB	282	block[0x0C] = temp_block[0x09]; block[0x01] = temp_block[0x02];
115329f1 DB	283	block[0x05] = temp_block[0x03];
2ad1516a	284	if(last_non_zero_p1 <= 7) goto end;
115329f1 DB	285	block[0x09] = temp_block[0x0A]; block[0x14] = temp_block[0x11];
115329f1 DB	286	block[0x18] = temp_block[0x18]; block[0x20] = temp_block[0x20];
2ad1516a	287	if(last_non_zero_p1 <= 11) goto end;
115329f1 DB	288	block[0x1C] = temp_block[0x19];
	289	block[0x11] = temp_block[0x12]; block[0x0D] = temp_block[0x0B];
	290	block[0x02] = temp_block[0x04]; block[0x06] = temp_block[0x05];
2ad1516a	291	if(last_non_zero_p1 <= 16) goto end;
115329f1 DB	292	block[0x0A] = temp_block[0x0C]; block[0x15] = temp_block[0x13];
	293	block[0x19] = temp_block[0x1A]; block[0x24] = temp_block[0x21];
	294	block[0x28] = temp_block[0x28]; block[0x30] = temp_block[0x30];
	295	block[0x2C] = temp_block[0x29]; block[0x21] = temp_block[0x22];
2ad1516a	296	if(last_non_zero_p1 <= 24) goto end;
115329f1 DB	297	block[0x1D] = temp_block[0x1B]; block[0x12] = temp_block[0x14];
	298	block[0x0E] = temp_block[0x0D]; block[0x03] = temp_block[0x06];
	299	block[0x07] = temp_block[0x07]; block[0x0B] = temp_block[0x0E];
	300	block[0x16] = temp_block[0x15]; block[0x1A] = temp_block[0x1C];
2ad1516a	301	if(last_non_zero_p1 <= 32) goto end;
115329f1 DB	302	block[0x25] = temp_block[0x23]; block[0x29] = temp_block[0x2A];
	303	block[0x34] = temp_block[0x31]; block[0x38] = temp_block[0x38];
	304	block[0x3C] = temp_block[0x39]; block[0x31] = temp_block[0x32];
	305	block[0x2D] = temp_block[0x2B]; block[0x22] = temp_block[0x24];
2ad1516a	306	if(last_non_zero_p1 <= 40) goto end;
115329f1 DB	307	block[0x1E] = temp_block[0x1D]; block[0x13] = temp_block[0x16];
	308	block[0x0F] = temp_block[0x0F]; block[0x17] = temp_block[0x17];
	309	block[0x1B] = temp_block[0x1E]; block[0x26] = temp_block[0x25];
	310	block[0x2A] = temp_block[0x2C]; block[0x35] = temp_block[0x33];
2ad1516a	311	if(last_non_zero_p1 <= 48) goto end;
115329f1 DB	312	block[0x39] = temp_block[0x3A]; block[0x3D] = temp_block[0x3B];
	313	block[0x32] = temp_block[0x34]; block[0x2E] = temp_block[0x2D];
	314	block[0x23] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];
	315	block[0x27] = temp_block[0x27]; block[0x2B] = temp_block[0x2E];
2ad1516a	316	if(last_non_zero_p1 <= 56) goto end;
115329f1 DB	317	block[0x36] = temp_block[0x35]; block[0x3A] = temp_block[0x3C];
	318	block[0x3E] = temp_block[0x3D]; block[0x33] = temp_block[0x36];
	319	block[0x2F] = temp_block[0x2F]; block[0x37] = temp_block[0x37];
2ad1516a MN	320	block[0x3B] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
	321	}else{
	322	if(last_non_zero_p1 <= 1) goto end;
115329f1 DB	323	block[0x01] = temp_block[0x01];
115329f1 DB	324	block[0x08] = temp_block[0x08]; block[0x10] = temp_block[0x10];
2ad1516a	325	if(last_non_zero_p1 <= 4) goto end;
115329f1 DB	326	block[0x09] = temp_block[0x09]; block[0x02] = temp_block[0x02];
115329f1 DB	327	block[0x03] = temp_block[0x03];
2ad1516a	328	if(last_non_zero_p1 <= 7) goto end;
115329f1 DB	329	block[0x0A] = temp_block[0x0A]; block[0x11] = temp_block[0x11];
115329f1 DB	330	block[0x18] = temp_block[0x18]; block[0x20] = temp_block[0x20];
2ad1516a	331	if(last_non_zero_p1 <= 11) goto end;
115329f1 DB	332	block[0x19] = temp_block[0x19];
	333	block[0x12] = temp_block[0x12]; block[0x0B] = temp_block[0x0B];
	334	block[0x04] = temp_block[0x04]; block[0x05] = temp_block[0x05];
2ad1516a	335	if(last_non_zero_p1 <= 16) goto end;
115329f1 DB	336	block[0x0C] = temp_block[0x0C]; block[0x13] = temp_block[0x13];
	337	block[0x1A] = temp_block[0x1A]; block[0x21] = temp_block[0x21];
	338	block[0x28] = temp_block[0x28]; block[0x30] = temp_block[0x30];
	339	block[0x29] = temp_block[0x29]; block[0x22] = temp_block[0x22];
2ad1516a	340	if(last_non_zero_p1 <= 24) goto end;
115329f1 DB	341	block[0x1B] = temp_block[0x1B]; block[0x14] = temp_block[0x14];
	342	block[0x0D] = temp_block[0x0D]; block[0x06] = temp_block[0x06];
	343	block[0x07] = temp_block[0x07]; block[0x0E] = temp_block[0x0E];
	344	block[0x15] = temp_block[0x15]; block[0x1C] = temp_block[0x1C];
2ad1516a	345	if(last_non_zero_p1 <= 32) goto end;
115329f1 DB	346	block[0x23] = temp_block[0x23]; block[0x2A] = temp_block[0x2A];
	347	block[0x31] = temp_block[0x31]; block[0x38] = temp_block[0x38];
	348	block[0x39] = temp_block[0x39]; block[0x32] = temp_block[0x32];
	349	block[0x2B] = temp_block[0x2B]; block[0x24] = temp_block[0x24];
2ad1516a	350	if(last_non_zero_p1 <= 40) goto end;
115329f1 DB	351	block[0x1D] = temp_block[0x1D]; block[0x16] = temp_block[0x16];
	352	block[0x0F] = temp_block[0x0F]; block[0x17] = temp_block[0x17];
	353	block[0x1E] = temp_block[0x1E]; block[0x25] = temp_block[0x25];
	354	block[0x2C] = temp_block[0x2C]; block[0x33] = temp_block[0x33];
2ad1516a	355	if(last_non_zero_p1 <= 48) goto end;
115329f1 DB	356	block[0x3A] = temp_block[0x3A]; block[0x3B] = temp_block[0x3B];
	357	block[0x34] = temp_block[0x34]; block[0x2D] = temp_block[0x2D];
	358	block[0x26] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];
	359	block[0x27] = temp_block[0x27]; block[0x2E] = temp_block[0x2E];
2ad1516a	360	if(last_non_zero_p1 <= 56) goto end;
115329f1 DB	361	block[0x35] = temp_block[0x35]; block[0x3C] = temp_block[0x3C];
	362	block[0x3D] = temp_block[0x3D]; block[0x36] = temp_block[0x36];
	363	block[0x2F] = temp_block[0x2F]; block[0x37] = temp_block[0x37];
2ad1516a MN	364	block[0x3E] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
	365	}
	366	end:
2f349de2 MN	367	/*
	368	for(i=0; i<last_non_zero_p1; i++)
	369	{
	370	int j= zigzag_direct_noperm[i];
	371	block[block_permute_op(j)]= temp_block[j];
	372	}
	373	*/
d7e9533a	374
2f349de2 MN	375	return last_non_zero_p1 - 1;
2f349de2 MN	376	}