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FFmpeg/libavcodec/x86/mpegvideoenc_template.c
Andreas Rheinhardt 7284ab789d avcodec/x86/mpegvideoenc: Remove obsolete MMX(EXT) functions 
x64 always has MMX, MMXEXT, SSE and SSE2 and this means
that some functions for MMX, MMXEXT and 3dnow are always
overridden by other functions (unless one e.g. explicitly
disables SSE2) for x64. So given that the only systems that
benefit from these functions are truely ancient 32bit x86s
they are removed.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-06-22 13:30:43 +02:00

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/*
* 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
*/
#include <stdint.h>
#include "libavutil/internal.h"
#include "libavutil/mem_internal.h"
#include "libavutil/x86/asm.h"
#include "libavcodec/mpegutils.h"
#include "libavcodec/mpegvideo.h"
#include "fdct.h"
#undef MMREG_WIDTH
#undef MM
#undef MOVQ
#undef SPREADW
#undef PMAXW
#undef PMAX
#undef SAVE_SIGN
#undef RESTORE_SIGN
#if COMPILE_TEMPLATE_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"
#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
#if COMPILE_TEMPLATE_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,
int16_t *block, int n,
int qscale, int *overflow)
{
x86_reg last_non_zero_p1;
int level=0, q; //=0 is because gcc says uninitialized ...
const uint16_t *qmat, *bias;
LOCAL_ALIGNED_16(int16_t, temp_block, [64]);
av_assert2((7&(uintptr_t)(&temp_block[0])) == 0); //did gcc align it correctly?
//s->fdct (block);
RENAME_FDCT(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;
bias = s->q_intra_matrix16[qscale][1];
qmat = s->q_intra_matrix16[qscale][0];
}else{
q = s->c_dc_scale;
bias = s->q_chroma_intra_matrix16[qscale][1];
qmat = s->q_chroma_intra_matrix16[qscale][0];
}
/* note: block[0] is assumed to be positive */
if (!s->h263_aic) {
__asm__ volatile (
"mul %%ecx \n\t"
: "=d" (level), "=a"(dummy)
: "a" ((block[0]>>2) + q), "c" (ff_inverse[q<<1])
);
} 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;
} 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 %%"FF_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, %%"FF_REG_a" \n\t"
".p2align 4 \n\t"
"1: \n\t"
MOVQ" (%1, %%"FF_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, %%"FF_REG_a") \n\t"
"pcmpeqw "MM"7, "MM"0 \n\t" // out==0 ? 0xFF : 0x00
MOVQ" (%4, %%"FF_REG_a"), "MM"1 \n\t"
MOVQ" "MM"7, (%1, %%"FF_REG_a") \n\t" // 0
"pandn "MM"1, "MM"0 \n\t"
PMAXW(MM"0", MM"3")
"add $"MMREG_WIDTH", %%"FF_REG_a" \n\t"
" js 1b \n\t"
PMAX(MM"3", MM"0")
"movd "MM"3, %%"FF_REG_a" \n\t"
"movzbl %%al, %%eax \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)
XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
"%xmm4", "%xmm5", "%xmm6", "%xmm7")
);
}else{ // FMT_H263
__asm__ volatile(
"movd %%"FF_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, %%"FF_REG_a" \n\t"
".p2align 4 \n\t"
"1: \n\t"
MOVQ" (%1, %%"FF_REG_a"), "MM"0 \n\t" // block[i]
SAVE_SIGN(MM"1", MM"0") // ABS(block[i])
MOVQ" (%3, %%"FF_REG_a"), "MM"6 \n\t" // bias[0]
"paddusw "MM"6, "MM"0 \n\t" // ABS(block[i]) + bias[0]
MOVQ" (%2, %%"FF_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, %%"FF_REG_a") \n\t"
"pcmpeqw "MM"7, "MM"0 \n\t" // out==0 ? 0xFF : 0x00
MOVQ" (%4, %%"FF_REG_a"), "MM"1 \n\t"
MOVQ" "MM"7, (%1, %%"FF_REG_a") \n\t" // 0
"pandn "MM"1, "MM"0 \n\t"
PMAXW(MM"0", MM"3")
"add $"MMREG_WIDTH", %%"FF_REG_a" \n\t"
" js 1b \n\t"
PMAX(MM"3", MM"0")
"movd "MM"3, %%"FF_REG_a" \n\t"
"movzbl %%al, %%eax \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)
XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
"%xmm4", "%xmm5", "%xmm6", "%xmm7")
);
}
__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"
#if COMPILE_TEMPLATE_SSE2
"packsswb "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->idsp.perm_type == FF_IDCT_PERM_SIMPLE) {
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->idsp.perm_type == FF_IDCT_PERM_LIBMPEG2){
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 (s->idsp.perm_type == FF_IDCT_PERM_NONE) {
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];
} else if (s->idsp.perm_type == FF_IDCT_PERM_TRANSPOSE) {
if(last_non_zero_p1 <= 1) goto end;
block[0x08] = temp_block[0x01];
block[0x01] = temp_block[0x08]; block[0x02] = temp_block[0x10];
if(last_non_zero_p1 <= 4) goto end;
block[0x09] = temp_block[0x09]; block[0x10] = temp_block[0x02];
block[0x18] = temp_block[0x03];
if(last_non_zero_p1 <= 7) goto end;
block[0x11] = temp_block[0x0A]; block[0x0A] = temp_block[0x11];
block[0x03] = temp_block[0x18]; block[0x04] = temp_block[0x20];
if(last_non_zero_p1 <= 11) goto end;
block[0x0B] = temp_block[0x19];
block[0x12] = temp_block[0x12]; block[0x19] = temp_block[0x0B];
block[0x20] = temp_block[0x04]; block[0x28] = temp_block[0x05];
if(last_non_zero_p1 <= 16) goto end;
block[0x21] = temp_block[0x0C]; block[0x1A] = temp_block[0x13];
block[0x13] = temp_block[0x1A]; block[0x0C] = temp_block[0x21];
block[0x05] = temp_block[0x28]; block[0x06] = temp_block[0x30];
block[0x0D] = temp_block[0x29]; block[0x14] = temp_block[0x22];
if(last_non_zero_p1 <= 24) goto end;
block[0x1B] = temp_block[0x1B]; block[0x22] = temp_block[0x14];
block[0x29] = temp_block[0x0D]; block[0x30] = temp_block[0x06];
block[0x38] = temp_block[0x07]; block[0x31] = temp_block[0x0E];
block[0x2A] = temp_block[0x15]; block[0x23] = temp_block[0x1C];
if(last_non_zero_p1 <= 32) goto end;
block[0x1C] = temp_block[0x23]; block[0x15] = temp_block[0x2A];
block[0x0E] = temp_block[0x31]; block[0x07] = temp_block[0x38];
block[0x0F] = temp_block[0x39]; block[0x16] = temp_block[0x32];
block[0x1D] = temp_block[0x2B]; block[0x24] = temp_block[0x24];
if(last_non_zero_p1 <= 40) goto end;
block[0x2B] = temp_block[0x1D]; block[0x32] = temp_block[0x16];
block[0x39] = temp_block[0x0F]; block[0x3A] = temp_block[0x17];
block[0x33] = temp_block[0x1E]; block[0x2C] = temp_block[0x25];
block[0x25] = temp_block[0x2C]; block[0x1E] = temp_block[0x33];
if(last_non_zero_p1 <= 48) goto end;
block[0x17] = temp_block[0x3A]; block[0x1F] = temp_block[0x3B];
block[0x26] = temp_block[0x34]; block[0x2D] = temp_block[0x2D];
block[0x34] = temp_block[0x26]; block[0x3B] = temp_block[0x1F];
block[0x3C] = temp_block[0x27]; block[0x35] = temp_block[0x2E];
if(last_non_zero_p1 <= 56) goto end;
block[0x2E] = temp_block[0x35]; block[0x27] = temp_block[0x3C];
block[0x2F] = temp_block[0x3D]; block[0x36] = temp_block[0x36];
block[0x3D] = temp_block[0x2F]; block[0x3E] = temp_block[0x37];
block[0x37] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F];
} else {
av_log(s, AV_LOG_DEBUG, "s->idsp.perm_type: %d\n",
(int)s->idsp.perm_type);
av_assert0(s->idsp.perm_type == FF_IDCT_PERM_NONE ||
s->idsp.perm_type == FF_IDCT_PERM_LIBMPEG2 ||
s->idsp.perm_type == FF_IDCT_PERM_SIMPLE ||
s->idsp.perm_type == FF_IDCT_PERM_TRANSPOSE);
}
end:
return last_non_zero_p1 - 1;
}
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