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&(int)(&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(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: return last_non_zero_p1 - 1; }