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469 lines
21 KiB
469 lines
21 KiB
/* |
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* Optimized for ia32 CPUs by Nick Kurshev <nickols_k@mail.ru> |
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* H.263, MPEG-1, MPEG-2 dequantizer & draw_edges by 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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#include "libavutil/attributes.h" |
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#include "libavutil/cpu.h" |
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#include "libavutil/x86/asm.h" |
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#include "libavutil/x86/cpu.h" |
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#include "libavcodec/avcodec.h" |
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#include "libavcodec/mpegvideo.h" |
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#include "libavcodec/mpegvideodata.h" |
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#if HAVE_MMX_INLINE |
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static void dct_unquantize_h263_intra_mmx(MpegEncContext *s, |
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int16_t *block, int n, int qscale) |
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{ |
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x86_reg level, qmul, qadd, nCoeffs; |
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|
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qmul = qscale << 1; |
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|
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av_assert2(s->block_last_index[n]>=0 || s->h263_aic); |
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|
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if (!s->h263_aic) { |
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if (n < 4) |
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level = block[0] * s->y_dc_scale; |
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else |
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level = block[0] * s->c_dc_scale; |
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qadd = (qscale - 1) | 1; |
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}else{ |
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qadd = 0; |
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level= block[0]; |
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} |
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if(s->ac_pred) |
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nCoeffs=63; |
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else |
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nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]; |
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__asm__ volatile( |
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"movd %1, %%mm6 \n\t" //qmul |
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"packssdw %%mm6, %%mm6 \n\t" |
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"packssdw %%mm6, %%mm6 \n\t" |
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"movd %2, %%mm5 \n\t" //qadd |
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"pxor %%mm7, %%mm7 \n\t" |
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"packssdw %%mm5, %%mm5 \n\t" |
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"packssdw %%mm5, %%mm5 \n\t" |
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"psubw %%mm5, %%mm7 \n\t" |
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"pxor %%mm4, %%mm4 \n\t" |
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".p2align 4 \n\t" |
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"1: \n\t" |
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"movq (%0, %3), %%mm0 \n\t" |
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"movq 8(%0, %3), %%mm1 \n\t" |
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|
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"pmullw %%mm6, %%mm0 \n\t" |
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"pmullw %%mm6, %%mm1 \n\t" |
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|
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"movq (%0, %3), %%mm2 \n\t" |
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"movq 8(%0, %3), %%mm3 \n\t" |
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|
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"pcmpgtw %%mm4, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 |
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"pcmpgtw %%mm4, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 |
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|
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"pxor %%mm2, %%mm0 \n\t" |
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"pxor %%mm3, %%mm1 \n\t" |
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|
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"paddw %%mm7, %%mm0 \n\t" |
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"paddw %%mm7, %%mm1 \n\t" |
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|
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"pxor %%mm0, %%mm2 \n\t" |
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"pxor %%mm1, %%mm3 \n\t" |
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|
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"pcmpeqw %%mm7, %%mm0 \n\t" // block[i] == 0 ? -1 : 0 |
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"pcmpeqw %%mm7, %%mm1 \n\t" // block[i] == 0 ? -1 : 0 |
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|
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"pandn %%mm2, %%mm0 \n\t" |
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"pandn %%mm3, %%mm1 \n\t" |
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|
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"movq %%mm0, (%0, %3) \n\t" |
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"movq %%mm1, 8(%0, %3) \n\t" |
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"add $16, %3 \n\t" |
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"jng 1b \n\t" |
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::"r" (block+nCoeffs), "rm"(qmul), "rm" (qadd), "r" (2*(-nCoeffs)) |
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: "memory" |
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); |
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block[0]= level; |
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} |
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static void dct_unquantize_h263_inter_mmx(MpegEncContext *s, |
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int16_t *block, int n, int qscale) |
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{ |
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x86_reg qmul, qadd, nCoeffs; |
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qmul = qscale << 1; |
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qadd = (qscale - 1) | 1; |
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av_assert2(s->block_last_index[n]>=0 || s->h263_aic); |
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nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ]; |
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__asm__ volatile( |
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"movd %1, %%mm6 \n\t" //qmul |
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"packssdw %%mm6, %%mm6 \n\t" |
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"packssdw %%mm6, %%mm6 \n\t" |
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"movd %2, %%mm5 \n\t" //qadd |
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"pxor %%mm7, %%mm7 \n\t" |
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"packssdw %%mm5, %%mm5 \n\t" |
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"packssdw %%mm5, %%mm5 \n\t" |
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"psubw %%mm5, %%mm7 \n\t" |
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"pxor %%mm4, %%mm4 \n\t" |
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".p2align 4 \n\t" |
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"1: \n\t" |
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"movq (%0, %3), %%mm0 \n\t" |
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"movq 8(%0, %3), %%mm1 \n\t" |
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|
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"pmullw %%mm6, %%mm0 \n\t" |
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"pmullw %%mm6, %%mm1 \n\t" |
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|
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"movq (%0, %3), %%mm2 \n\t" |
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"movq 8(%0, %3), %%mm3 \n\t" |
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|
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"pcmpgtw %%mm4, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 |
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"pcmpgtw %%mm4, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 |
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"pxor %%mm2, %%mm0 \n\t" |
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"pxor %%mm3, %%mm1 \n\t" |
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"paddw %%mm7, %%mm0 \n\t" |
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"paddw %%mm7, %%mm1 \n\t" |
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"pxor %%mm0, %%mm2 \n\t" |
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"pxor %%mm1, %%mm3 \n\t" |
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|
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"pcmpeqw %%mm7, %%mm0 \n\t" // block[i] == 0 ? -1 : 0 |
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"pcmpeqw %%mm7, %%mm1 \n\t" // block[i] == 0 ? -1 : 0 |
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"pandn %%mm2, %%mm0 \n\t" |
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"pandn %%mm3, %%mm1 \n\t" |
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|
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"movq %%mm0, (%0, %3) \n\t" |
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"movq %%mm1, 8(%0, %3) \n\t" |
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"add $16, %3 \n\t" |
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"jng 1b \n\t" |
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::"r" (block+nCoeffs), "rm"(qmul), "rm" (qadd), "r" (2*(-nCoeffs)) |
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: "memory" |
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); |
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} |
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static void dct_unquantize_mpeg1_intra_mmx(MpegEncContext *s, |
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int16_t *block, int n, int qscale) |
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{ |
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x86_reg nCoeffs; |
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const uint16_t *quant_matrix; |
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int block0; |
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av_assert2(s->block_last_index[n]>=0); |
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nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]+1; |
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if (n < 4) |
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block0 = block[0] * s->y_dc_scale; |
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else |
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block0 = block[0] * s->c_dc_scale; |
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/* XXX: only MPEG-1 */ |
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quant_matrix = s->intra_matrix; |
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__asm__ volatile( |
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"pcmpeqw %%mm7, %%mm7 \n\t" |
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"psrlw $15, %%mm7 \n\t" |
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"movd %2, %%mm6 \n\t" |
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"packssdw %%mm6, %%mm6 \n\t" |
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"packssdw %%mm6, %%mm6 \n\t" |
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"mov %3, %%"FF_REG_a" \n\t" |
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".p2align 4 \n\t" |
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"1: \n\t" |
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"movq (%0, %%"FF_REG_a"), %%mm0 \n\t" |
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"movq 8(%0, %%"FF_REG_a"), %%mm1\n\t" |
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"movq (%1, %%"FF_REG_a"), %%mm4 \n\t" |
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"movq 8(%1, %%"FF_REG_a"), %%mm5\n\t" |
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"pmullw %%mm6, %%mm4 \n\t" // q=qscale*quant_matrix[i] |
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"pmullw %%mm6, %%mm5 \n\t" // q=qscale*quant_matrix[i] |
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"pxor %%mm2, %%mm2 \n\t" |
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"pxor %%mm3, %%mm3 \n\t" |
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"pcmpgtw %%mm0, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 |
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"pcmpgtw %%mm1, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 |
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"pxor %%mm2, %%mm0 \n\t" |
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"pxor %%mm3, %%mm1 \n\t" |
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"psubw %%mm2, %%mm0 \n\t" // abs(block[i]) |
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"psubw %%mm3, %%mm1 \n\t" // abs(block[i]) |
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"pmullw %%mm4, %%mm0 \n\t" // abs(block[i])*q |
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"pmullw %%mm5, %%mm1 \n\t" // abs(block[i])*q |
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"pxor %%mm4, %%mm4 \n\t" |
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"pxor %%mm5, %%mm5 \n\t" // FIXME slow |
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"pcmpeqw (%0, %%"FF_REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0 |
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"pcmpeqw 8(%0, %%"FF_REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0 |
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"psraw $3, %%mm0 \n\t" |
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"psraw $3, %%mm1 \n\t" |
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"psubw %%mm7, %%mm0 \n\t" |
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"psubw %%mm7, %%mm1 \n\t" |
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"por %%mm7, %%mm0 \n\t" |
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"por %%mm7, %%mm1 \n\t" |
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"pxor %%mm2, %%mm0 \n\t" |
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"pxor %%mm3, %%mm1 \n\t" |
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"psubw %%mm2, %%mm0 \n\t" |
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"psubw %%mm3, %%mm1 \n\t" |
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"pandn %%mm0, %%mm4 \n\t" |
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"pandn %%mm1, %%mm5 \n\t" |
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"movq %%mm4, (%0, %%"FF_REG_a") \n\t" |
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"movq %%mm5, 8(%0, %%"FF_REG_a")\n\t" |
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"add $16, %%"FF_REG_a" \n\t" |
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"js 1b \n\t" |
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::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "g" (-2*nCoeffs) |
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: "%"FF_REG_a, "memory" |
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); |
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block[0]= block0; |
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} |
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static void dct_unquantize_mpeg1_inter_mmx(MpegEncContext *s, |
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int16_t *block, int n, int qscale) |
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{ |
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x86_reg nCoeffs; |
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const uint16_t *quant_matrix; |
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av_assert2(s->block_last_index[n]>=0); |
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nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]+1; |
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quant_matrix = s->inter_matrix; |
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__asm__ volatile( |
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"pcmpeqw %%mm7, %%mm7 \n\t" |
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"psrlw $15, %%mm7 \n\t" |
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"movd %2, %%mm6 \n\t" |
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"packssdw %%mm6, %%mm6 \n\t" |
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"packssdw %%mm6, %%mm6 \n\t" |
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"mov %3, %%"FF_REG_a" \n\t" |
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".p2align 4 \n\t" |
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"1: \n\t" |
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"movq (%0, %%"FF_REG_a"), %%mm0 \n\t" |
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"movq 8(%0, %%"FF_REG_a"), %%mm1\n\t" |
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"movq (%1, %%"FF_REG_a"), %%mm4 \n\t" |
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"movq 8(%1, %%"FF_REG_a"), %%mm5\n\t" |
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"pmullw %%mm6, %%mm4 \n\t" // q=qscale*quant_matrix[i] |
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"pmullw %%mm6, %%mm5 \n\t" // q=qscale*quant_matrix[i] |
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"pxor %%mm2, %%mm2 \n\t" |
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"pxor %%mm3, %%mm3 \n\t" |
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"pcmpgtw %%mm0, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 |
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"pcmpgtw %%mm1, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 |
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"pxor %%mm2, %%mm0 \n\t" |
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"pxor %%mm3, %%mm1 \n\t" |
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"psubw %%mm2, %%mm0 \n\t" // abs(block[i]) |
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"psubw %%mm3, %%mm1 \n\t" // abs(block[i]) |
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"paddw %%mm0, %%mm0 \n\t" // abs(block[i])*2 |
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"paddw %%mm1, %%mm1 \n\t" // abs(block[i])*2 |
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"paddw %%mm7, %%mm0 \n\t" // abs(block[i])*2 + 1 |
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"paddw %%mm7, %%mm1 \n\t" // abs(block[i])*2 + 1 |
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"pmullw %%mm4, %%mm0 \n\t" // (abs(block[i])*2 + 1)*q |
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"pmullw %%mm5, %%mm1 \n\t" // (abs(block[i])*2 + 1)*q |
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"pxor %%mm4, %%mm4 \n\t" |
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"pxor %%mm5, %%mm5 \n\t" // FIXME slow |
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"pcmpeqw (%0, %%"FF_REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0 |
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"pcmpeqw 8(%0, %%"FF_REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0 |
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"psraw $4, %%mm0 \n\t" |
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"psraw $4, %%mm1 \n\t" |
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"psubw %%mm7, %%mm0 \n\t" |
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"psubw %%mm7, %%mm1 \n\t" |
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"por %%mm7, %%mm0 \n\t" |
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"por %%mm7, %%mm1 \n\t" |
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"pxor %%mm2, %%mm0 \n\t" |
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"pxor %%mm3, %%mm1 \n\t" |
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"psubw %%mm2, %%mm0 \n\t" |
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"psubw %%mm3, %%mm1 \n\t" |
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"pandn %%mm0, %%mm4 \n\t" |
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"pandn %%mm1, %%mm5 \n\t" |
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"movq %%mm4, (%0, %%"FF_REG_a") \n\t" |
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"movq %%mm5, 8(%0, %%"FF_REG_a")\n\t" |
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"add $16, %%"FF_REG_a" \n\t" |
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"js 1b \n\t" |
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::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "g" (-2*nCoeffs) |
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: "%"FF_REG_a, "memory" |
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); |
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} |
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static void dct_unquantize_mpeg2_intra_mmx(MpegEncContext *s, |
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int16_t *block, int n, int qscale) |
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{ |
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x86_reg nCoeffs; |
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const uint16_t *quant_matrix; |
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int block0; |
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av_assert2(s->block_last_index[n]>=0); |
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if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale]; |
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else qscale <<= 1; |
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if(s->alternate_scan) nCoeffs= 63; //FIXME |
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else nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]; |
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if (n < 4) |
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block0 = block[0] * s->y_dc_scale; |
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else |
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block0 = block[0] * s->c_dc_scale; |
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quant_matrix = s->intra_matrix; |
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__asm__ volatile( |
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"pcmpeqw %%mm7, %%mm7 \n\t" |
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"psrlw $15, %%mm7 \n\t" |
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"movd %2, %%mm6 \n\t" |
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"packssdw %%mm6, %%mm6 \n\t" |
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"packssdw %%mm6, %%mm6 \n\t" |
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"mov %3, %%"FF_REG_a" \n\t" |
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".p2align 4 \n\t" |
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"1: \n\t" |
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"movq (%0, %%"FF_REG_a"), %%mm0 \n\t" |
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"movq 8(%0, %%"FF_REG_a"), %%mm1\n\t" |
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"movq (%1, %%"FF_REG_a"), %%mm4 \n\t" |
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"movq 8(%1, %%"FF_REG_a"), %%mm5\n\t" |
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"pmullw %%mm6, %%mm4 \n\t" // q=qscale*quant_matrix[i] |
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"pmullw %%mm6, %%mm5 \n\t" // q=qscale*quant_matrix[i] |
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"pxor %%mm2, %%mm2 \n\t" |
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"pxor %%mm3, %%mm3 \n\t" |
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"pcmpgtw %%mm0, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 |
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"pcmpgtw %%mm1, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 |
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"pxor %%mm2, %%mm0 \n\t" |
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"pxor %%mm3, %%mm1 \n\t" |
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"psubw %%mm2, %%mm0 \n\t" // abs(block[i]) |
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"psubw %%mm3, %%mm1 \n\t" // abs(block[i]) |
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"pmullw %%mm4, %%mm0 \n\t" // abs(block[i])*q |
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"pmullw %%mm5, %%mm1 \n\t" // abs(block[i])*q |
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"pxor %%mm4, %%mm4 \n\t" |
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"pxor %%mm5, %%mm5 \n\t" // FIXME slow |
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"pcmpeqw (%0, %%"FF_REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0 |
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"pcmpeqw 8(%0, %%"FF_REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0 |
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"psraw $4, %%mm0 \n\t" |
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"psraw $4, %%mm1 \n\t" |
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"pxor %%mm2, %%mm0 \n\t" |
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"pxor %%mm3, %%mm1 \n\t" |
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"psubw %%mm2, %%mm0 \n\t" |
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"psubw %%mm3, %%mm1 \n\t" |
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"pandn %%mm0, %%mm4 \n\t" |
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"pandn %%mm1, %%mm5 \n\t" |
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"movq %%mm4, (%0, %%"FF_REG_a") \n\t" |
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"movq %%mm5, 8(%0, %%"FF_REG_a")\n\t" |
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|
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"add $16, %%"FF_REG_a" \n\t" |
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"jng 1b \n\t" |
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::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "g" (-2*nCoeffs) |
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: "%"FF_REG_a, "memory" |
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); |
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block[0]= block0; |
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//Note, we do not do mismatch control for intra as errors cannot accumulate |
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} |
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|
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static void dct_unquantize_mpeg2_inter_mmx(MpegEncContext *s, |
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int16_t *block, int n, int qscale) |
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{ |
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x86_reg nCoeffs; |
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const uint16_t *quant_matrix; |
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|
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av_assert2(s->block_last_index[n]>=0); |
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if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale]; |
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else qscale <<= 1; |
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if(s->alternate_scan) nCoeffs= 63; //FIXME |
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else nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]; |
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quant_matrix = s->inter_matrix; |
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__asm__ volatile( |
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"pcmpeqw %%mm7, %%mm7 \n\t" |
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"psrlq $48, %%mm7 \n\t" |
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"movd %2, %%mm6 \n\t" |
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"packssdw %%mm6, %%mm6 \n\t" |
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"packssdw %%mm6, %%mm6 \n\t" |
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"mov %3, %%"FF_REG_a" \n\t" |
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".p2align 4 \n\t" |
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"1: \n\t" |
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"movq (%0, %%"FF_REG_a"), %%mm0 \n\t" |
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"movq 8(%0, %%"FF_REG_a"), %%mm1\n\t" |
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"movq (%1, %%"FF_REG_a"), %%mm4 \n\t" |
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"movq 8(%1, %%"FF_REG_a"), %%mm5\n\t" |
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"pmullw %%mm6, %%mm4 \n\t" // q=qscale*quant_matrix[i] |
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"pmullw %%mm6, %%mm5 \n\t" // q=qscale*quant_matrix[i] |
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"pxor %%mm2, %%mm2 \n\t" |
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"pxor %%mm3, %%mm3 \n\t" |
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"pcmpgtw %%mm0, %%mm2 \n\t" // block[i] < 0 ? -1 : 0 |
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"pcmpgtw %%mm1, %%mm3 \n\t" // block[i] < 0 ? -1 : 0 |
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"pxor %%mm2, %%mm0 \n\t" |
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"pxor %%mm3, %%mm1 \n\t" |
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"psubw %%mm2, %%mm0 \n\t" // abs(block[i]) |
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"psubw %%mm3, %%mm1 \n\t" // abs(block[i]) |
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"paddw %%mm0, %%mm0 \n\t" // abs(block[i])*2 |
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"paddw %%mm1, %%mm1 \n\t" // abs(block[i])*2 |
|
"pmullw %%mm4, %%mm0 \n\t" // abs(block[i])*2*q |
|
"pmullw %%mm5, %%mm1 \n\t" // abs(block[i])*2*q |
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"paddw %%mm4, %%mm0 \n\t" // (abs(block[i])*2 + 1)*q |
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"paddw %%mm5, %%mm1 \n\t" // (abs(block[i])*2 + 1)*q |
|
"pxor %%mm4, %%mm4 \n\t" |
|
"pxor %%mm5, %%mm5 \n\t" // FIXME slow |
|
"pcmpeqw (%0, %%"FF_REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0 |
|
"pcmpeqw 8(%0, %%"FF_REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0 |
|
"psrlw $5, %%mm0 \n\t" |
|
"psrlw $5, %%mm1 \n\t" |
|
"pxor %%mm2, %%mm0 \n\t" |
|
"pxor %%mm3, %%mm1 \n\t" |
|
"psubw %%mm2, %%mm0 \n\t" |
|
"psubw %%mm3, %%mm1 \n\t" |
|
"pandn %%mm0, %%mm4 \n\t" |
|
"pandn %%mm1, %%mm5 \n\t" |
|
"pxor %%mm4, %%mm7 \n\t" |
|
"pxor %%mm5, %%mm7 \n\t" |
|
"movq %%mm4, (%0, %%"FF_REG_a") \n\t" |
|
"movq %%mm5, 8(%0, %%"FF_REG_a")\n\t" |
|
|
|
"add $16, %%"FF_REG_a" \n\t" |
|
"jng 1b \n\t" |
|
"movd 124(%0, %3), %%mm0 \n\t" |
|
"movq %%mm7, %%mm6 \n\t" |
|
"psrlq $32, %%mm7 \n\t" |
|
"pxor %%mm6, %%mm7 \n\t" |
|
"movq %%mm7, %%mm6 \n\t" |
|
"psrlq $16, %%mm7 \n\t" |
|
"pxor %%mm6, %%mm7 \n\t" |
|
"pslld $31, %%mm7 \n\t" |
|
"psrlq $15, %%mm7 \n\t" |
|
"pxor %%mm7, %%mm0 \n\t" |
|
"movd %%mm0, 124(%0, %3) \n\t" |
|
|
|
::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "r" (-2*nCoeffs) |
|
: "%"FF_REG_a, "memory" |
|
); |
|
} |
|
|
|
#endif /* HAVE_MMX_INLINE */ |
|
|
|
av_cold void ff_mpv_common_init_x86(MpegEncContext *s) |
|
{ |
|
#if HAVE_MMX_INLINE |
|
int cpu_flags = av_get_cpu_flags(); |
|
|
|
if (INLINE_MMX(cpu_flags)) { |
|
s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_mmx; |
|
s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_mmx; |
|
s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_mmx; |
|
s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_mmx; |
|
if (!(s->avctx->flags & AV_CODEC_FLAG_BITEXACT)) |
|
s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_mmx; |
|
s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_mmx; |
|
} |
|
#endif /* HAVE_MMX_INLINE */ |
|
}
|
|
|