forked from KolibriOS/kolibrios
365 lines
17 KiB
C
365 lines
17 KiB
C
/*
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* MPEG video MMX templates
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*
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* Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#undef MMREG_WIDTH
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#undef MM
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#undef MOVQ
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#undef SPREADW
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#undef PMAXW
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#undef PMAX
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#undef SAVE_SIGN
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#undef RESTORE_SIGN
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#if COMPILE_TEMPLATE_SSE2
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#define MMREG_WIDTH "16"
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#define MM "%%xmm"
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#define MOVQ "movdqa"
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#define SPREADW(a) \
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"pshuflw $0, "a", "a" \n\t"\
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"punpcklwd "a", "a" \n\t"
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#define PMAXW(a,b) "pmaxsw "a", "b" \n\t"
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#define PMAX(a,b) \
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"movhlps "a", "b" \n\t"\
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PMAXW(b, a)\
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"pshuflw $0x0E, "a", "b" \n\t"\
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PMAXW(b, a)\
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"pshuflw $0x01, "a", "b" \n\t"\
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PMAXW(b, a)
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#else
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#define MMREG_WIDTH "8"
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#define MM "%%mm"
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#define MOVQ "movq"
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#if COMPILE_TEMPLATE_MMXEXT
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#define SPREADW(a) "pshufw $0, "a", "a" \n\t"
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#define PMAXW(a,b) "pmaxsw "a", "b" \n\t"
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#define PMAX(a,b) \
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"pshufw $0x0E, "a", "b" \n\t"\
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PMAXW(b, a)\
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"pshufw $0x01, "a", "b" \n\t"\
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PMAXW(b, a)
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#else
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#define SPREADW(a) \
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"punpcklwd "a", "a" \n\t"\
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"punpcklwd "a", "a" \n\t"
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#define PMAXW(a,b) \
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"psubusw "a", "b" \n\t"\
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"paddw "a", "b" \n\t"
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#define PMAX(a,b) \
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"movq "a", "b" \n\t"\
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"psrlq $32, "a" \n\t"\
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PMAXW(b, a)\
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"movq "a", "b" \n\t"\
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"psrlq $16, "a" \n\t"\
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PMAXW(b, a)
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#endif
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#endif
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#if COMPILE_TEMPLATE_SSSE3
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#define SAVE_SIGN(a,b) \
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"movdqa "b", "a" \n\t"\
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"pabsw "b", "b" \n\t"
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#define RESTORE_SIGN(a,b) \
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"psignw "a", "b" \n\t"
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#else
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#define SAVE_SIGN(a,b) \
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"pxor "a", "a" \n\t"\
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"pcmpgtw "b", "a" \n\t" /* block[i] <= 0 ? 0xFF : 0x00 */\
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"pxor "a", "b" \n\t"\
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"psubw "a", "b" \n\t" /* ABS(block[i]) */
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#define RESTORE_SIGN(a,b) \
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"pxor "a", "b" \n\t"\
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"psubw "a", "b" \n\t" // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
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#endif
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static int RENAME(dct_quantize)(MpegEncContext *s,
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int16_t *block, int n,
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int qscale, int *overflow)
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{
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x86_reg last_non_zero_p1;
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int level=0, q; //=0 is because gcc says uninitialized ...
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const uint16_t *qmat, *bias;
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LOCAL_ALIGNED_16(int16_t, temp_block, [64]);
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av_assert2((7&(int)(&temp_block[0])) == 0); //did gcc align it correctly?
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//s->fdct (block);
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RENAMEl(ff_fdct) (block); //cannot be anything else ...
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if(s->dct_error_sum)
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s->denoise_dct(s, block);
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if (s->mb_intra) {
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int dummy;
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if (n < 4){
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q = s->y_dc_scale;
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bias = s->q_intra_matrix16[qscale][1];
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qmat = s->q_intra_matrix16[qscale][0];
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}else{
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q = s->c_dc_scale;
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bias = s->q_chroma_intra_matrix16[qscale][1];
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qmat = s->q_chroma_intra_matrix16[qscale][0];
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}
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/* note: block[0] is assumed to be positive */
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if (!s->h263_aic) {
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__asm__ volatile (
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"mul %%ecx \n\t"
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: "=d" (level), "=a"(dummy)
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: "a" ((block[0]>>2) + q), "c" (ff_inverse[q<<1])
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);
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} else
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/* For AIC we skip quant/dequant of INTRADC */
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level = (block[0] + 4)>>3;
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block[0]=0; //avoid fake overflow
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// temp_block[0] = (block[0] + (q >> 1)) / q;
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last_non_zero_p1 = 1;
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} else {
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last_non_zero_p1 = 0;
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bias = s->q_inter_matrix16[qscale][1];
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qmat = s->q_inter_matrix16[qscale][0];
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}
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if((s->out_format == FMT_H263 || s->out_format == FMT_H261) && s->mpeg_quant==0){
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__asm__ volatile(
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"movd %%"REG_a", "MM"3 \n\t" // last_non_zero_p1
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SPREADW(MM"3")
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"pxor "MM"7, "MM"7 \n\t" // 0
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"pxor "MM"4, "MM"4 \n\t" // 0
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MOVQ" (%2), "MM"5 \n\t" // qmat[0]
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"pxor "MM"6, "MM"6 \n\t"
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"psubw (%3), "MM"6 \n\t" // -bias[0]
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"mov $-128, %%"REG_a" \n\t"
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".p2align 4 \n\t"
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"1: \n\t"
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MOVQ" (%1, %%"REG_a"), "MM"0 \n\t" // block[i]
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SAVE_SIGN(MM"1", MM"0") // ABS(block[i])
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"psubusw "MM"6, "MM"0 \n\t" // ABS(block[i]) + bias[0]
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"pmulhw "MM"5, "MM"0 \n\t" // (ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16
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"por "MM"0, "MM"4 \n\t"
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RESTORE_SIGN(MM"1", MM"0") // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
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MOVQ" "MM"0, (%5, %%"REG_a") \n\t"
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"pcmpeqw "MM"7, "MM"0 \n\t" // out==0 ? 0xFF : 0x00
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MOVQ" (%4, %%"REG_a"), "MM"1 \n\t"
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MOVQ" "MM"7, (%1, %%"REG_a") \n\t" // 0
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"pandn "MM"1, "MM"0 \n\t"
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PMAXW(MM"0", MM"3")
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"add $"MMREG_WIDTH", %%"REG_a" \n\t"
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" js 1b \n\t"
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PMAX(MM"3", MM"0")
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"movd "MM"3, %%"REG_a" \n\t"
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"movzb %%al, %%"REG_a" \n\t" // last_non_zero_p1
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: "+a" (last_non_zero_p1)
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: "r" (block+64), "r" (qmat), "r" (bias),
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"r" (ff_inv_zigzag_direct16+64), "r" (temp_block+64)
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XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
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"%xmm4", "%xmm5", "%xmm6", "%xmm7")
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);
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}else{ // FMT_H263
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__asm__ volatile(
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"movd %%"REG_a", "MM"3 \n\t" // last_non_zero_p1
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SPREADW(MM"3")
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"pxor "MM"7, "MM"7 \n\t" // 0
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"pxor "MM"4, "MM"4 \n\t" // 0
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"mov $-128, %%"REG_a" \n\t"
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".p2align 4 \n\t"
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"1: \n\t"
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MOVQ" (%1, %%"REG_a"), "MM"0 \n\t" // block[i]
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SAVE_SIGN(MM"1", MM"0") // ABS(block[i])
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MOVQ" (%3, %%"REG_a"), "MM"6 \n\t" // bias[0]
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"paddusw "MM"6, "MM"0 \n\t" // ABS(block[i]) + bias[0]
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MOVQ" (%2, %%"REG_a"), "MM"5 \n\t" // qmat[i]
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"pmulhw "MM"5, "MM"0 \n\t" // (ABS(block[i])*qmat[0] + bias[0]*qmat[0])>>16
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"por "MM"0, "MM"4 \n\t"
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RESTORE_SIGN(MM"1", MM"0") // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
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MOVQ" "MM"0, (%5, %%"REG_a") \n\t"
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"pcmpeqw "MM"7, "MM"0 \n\t" // out==0 ? 0xFF : 0x00
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MOVQ" (%4, %%"REG_a"), "MM"1 \n\t"
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MOVQ" "MM"7, (%1, %%"REG_a") \n\t" // 0
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"pandn "MM"1, "MM"0 \n\t"
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PMAXW(MM"0", MM"3")
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"add $"MMREG_WIDTH", %%"REG_a" \n\t"
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" js 1b \n\t"
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PMAX(MM"3", MM"0")
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"movd "MM"3, %%"REG_a" \n\t"
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"movzb %%al, %%"REG_a" \n\t" // last_non_zero_p1
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: "+a" (last_non_zero_p1)
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: "r" (block+64), "r" (qmat+64), "r" (bias+64),
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"r" (ff_inv_zigzag_direct16+64), "r" (temp_block+64)
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XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
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"%xmm4", "%xmm5", "%xmm6", "%xmm7")
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);
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}
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__asm__ volatile(
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"movd %1, "MM"1 \n\t" // max_qcoeff
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SPREADW(MM"1")
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"psubusw "MM"1, "MM"4 \n\t"
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"packuswb "MM"4, "MM"4 \n\t"
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#if COMPILE_TEMPLATE_SSE2
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"packuswb "MM"4, "MM"4 \n\t"
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#endif
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"movd "MM"4, %0 \n\t" // *overflow
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: "=g" (*overflow)
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: "g" (s->max_qcoeff)
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);
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if(s->mb_intra) block[0]= level;
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else block[0]= temp_block[0];
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if(s->dsp.idct_permutation_type == FF_SIMPLE_IDCT_PERM){
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if(last_non_zero_p1 <= 1) goto end;
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block[0x08] = temp_block[0x01]; block[0x10] = temp_block[0x08];
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block[0x20] = temp_block[0x10];
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if(last_non_zero_p1 <= 4) goto end;
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block[0x18] = temp_block[0x09]; block[0x04] = temp_block[0x02];
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block[0x09] = temp_block[0x03];
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if(last_non_zero_p1 <= 7) goto end;
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block[0x14] = temp_block[0x0A]; block[0x28] = temp_block[0x11];
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block[0x12] = temp_block[0x18]; block[0x02] = temp_block[0x20];
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if(last_non_zero_p1 <= 11) goto end;
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block[0x1A] = temp_block[0x19]; block[0x24] = temp_block[0x12];
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block[0x19] = temp_block[0x0B]; block[0x01] = temp_block[0x04];
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block[0x0C] = temp_block[0x05];
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if(last_non_zero_p1 <= 16) goto end;
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block[0x11] = temp_block[0x0C]; block[0x29] = temp_block[0x13];
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block[0x16] = temp_block[0x1A]; block[0x0A] = temp_block[0x21];
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block[0x30] = temp_block[0x28]; block[0x22] = temp_block[0x30];
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block[0x38] = temp_block[0x29]; block[0x06] = temp_block[0x22];
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if(last_non_zero_p1 <= 24) goto end;
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block[0x1B] = temp_block[0x1B]; block[0x21] = temp_block[0x14];
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block[0x1C] = temp_block[0x0D]; block[0x05] = temp_block[0x06];
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block[0x0D] = temp_block[0x07]; block[0x15] = temp_block[0x0E];
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block[0x2C] = temp_block[0x15]; block[0x13] = temp_block[0x1C];
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if(last_non_zero_p1 <= 32) goto end;
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block[0x0B] = temp_block[0x23]; block[0x34] = temp_block[0x2A];
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block[0x2A] = temp_block[0x31]; block[0x32] = temp_block[0x38];
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block[0x3A] = temp_block[0x39]; block[0x26] = temp_block[0x32];
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block[0x39] = temp_block[0x2B]; block[0x03] = temp_block[0x24];
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if(last_non_zero_p1 <= 40) goto end;
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block[0x1E] = temp_block[0x1D]; block[0x25] = temp_block[0x16];
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block[0x1D] = temp_block[0x0F]; block[0x2D] = temp_block[0x17];
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block[0x17] = temp_block[0x1E]; block[0x0E] = temp_block[0x25];
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block[0x31] = temp_block[0x2C]; block[0x2B] = temp_block[0x33];
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if(last_non_zero_p1 <= 48) goto end;
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block[0x36] = temp_block[0x3A]; block[0x3B] = temp_block[0x3B];
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block[0x23] = temp_block[0x34]; block[0x3C] = temp_block[0x2D];
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block[0x07] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];
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block[0x0F] = temp_block[0x27]; block[0x35] = temp_block[0x2E];
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if(last_non_zero_p1 <= 56) goto end;
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block[0x2E] = temp_block[0x35]; block[0x33] = temp_block[0x3C];
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block[0x3E] = temp_block[0x3D]; block[0x27] = temp_block[0x36];
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block[0x3D] = temp_block[0x2F]; block[0x2F] = temp_block[0x37];
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block[0x37] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
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}else if(s->dsp.idct_permutation_type == FF_LIBMPEG2_IDCT_PERM){
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if(last_non_zero_p1 <= 1) goto end;
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block[0x04] = temp_block[0x01];
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block[0x08] = temp_block[0x08]; block[0x10] = temp_block[0x10];
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if(last_non_zero_p1 <= 4) goto end;
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block[0x0C] = temp_block[0x09]; block[0x01] = temp_block[0x02];
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block[0x05] = temp_block[0x03];
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if(last_non_zero_p1 <= 7) goto end;
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block[0x09] = temp_block[0x0A]; block[0x14] = temp_block[0x11];
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block[0x18] = temp_block[0x18]; block[0x20] = temp_block[0x20];
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if(last_non_zero_p1 <= 11) goto end;
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block[0x1C] = temp_block[0x19];
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block[0x11] = temp_block[0x12]; block[0x0D] = temp_block[0x0B];
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block[0x02] = temp_block[0x04]; block[0x06] = temp_block[0x05];
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if(last_non_zero_p1 <= 16) goto end;
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block[0x0A] = temp_block[0x0C]; block[0x15] = temp_block[0x13];
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block[0x19] = temp_block[0x1A]; block[0x24] = temp_block[0x21];
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block[0x28] = temp_block[0x28]; block[0x30] = temp_block[0x30];
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block[0x2C] = temp_block[0x29]; block[0x21] = temp_block[0x22];
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if(last_non_zero_p1 <= 24) goto end;
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block[0x1D] = temp_block[0x1B]; block[0x12] = temp_block[0x14];
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block[0x0E] = temp_block[0x0D]; block[0x03] = temp_block[0x06];
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block[0x07] = temp_block[0x07]; block[0x0B] = temp_block[0x0E];
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block[0x16] = temp_block[0x15]; block[0x1A] = temp_block[0x1C];
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if(last_non_zero_p1 <= 32) goto end;
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block[0x25] = temp_block[0x23]; block[0x29] = temp_block[0x2A];
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block[0x34] = temp_block[0x31]; block[0x38] = temp_block[0x38];
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block[0x3C] = temp_block[0x39]; block[0x31] = temp_block[0x32];
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block[0x2D] = temp_block[0x2B]; block[0x22] = temp_block[0x24];
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if(last_non_zero_p1 <= 40) goto end;
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block[0x1E] = temp_block[0x1D]; block[0x13] = temp_block[0x16];
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block[0x0F] = temp_block[0x0F]; block[0x17] = temp_block[0x17];
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block[0x1B] = temp_block[0x1E]; block[0x26] = temp_block[0x25];
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block[0x2A] = temp_block[0x2C]; block[0x35] = temp_block[0x33];
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if(last_non_zero_p1 <= 48) goto end;
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block[0x39] = temp_block[0x3A]; block[0x3D] = temp_block[0x3B];
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block[0x32] = temp_block[0x34]; block[0x2E] = temp_block[0x2D];
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block[0x23] = temp_block[0x26]; block[0x1F] = temp_block[0x1F];
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block[0x27] = temp_block[0x27]; block[0x2B] = temp_block[0x2E];
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if(last_non_zero_p1 <= 56) goto end;
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block[0x36] = temp_block[0x35]; block[0x3A] = temp_block[0x3C];
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block[0x3E] = temp_block[0x3D]; block[0x33] = temp_block[0x36];
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block[0x2F] = temp_block[0x2F]; block[0x37] = temp_block[0x37];
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block[0x3B] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
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}else{
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if(last_non_zero_p1 <= 1) goto end;
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block[0x01] = temp_block[0x01];
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block[0x08] = temp_block[0x08]; block[0x10] = temp_block[0x10];
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if(last_non_zero_p1 <= 4) goto end;
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block[0x09] = temp_block[0x09]; block[0x02] = temp_block[0x02];
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block[0x03] = temp_block[0x03];
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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:
|
|
return last_non_zero_p1 - 1;
|
|
}
|