| /* |
| * 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 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 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 |
| |
| #if 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) |
| { |
| x86_reg 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" |
| #if 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; |
| } |
