+++ /dev/null
-/*
- * MPEG video MMX templates
- *
- * Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
- *
- * This library 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 of the License, or (at your option) any later version.
- *
- * This library 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 this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-#undef SPREADW
-#undef PMAXW
-#ifdef HAVE_MMX2
-#define SPREADW(a) "pshufw $0, " #a ", " #a " \n\t"
-#define PMAXW(a,b) "pmaxsw " #a ", " #b " \n\t"
-
-#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"
-#endif
-
-static int RENAME(dct_quantize)(MpegEncContext *s,
- DCTELEM *block, int n,
- int qscale, int *overflow)
-{
- int level=0, last_non_zero_p1, q; //=0 is cuz gcc says uninitalized ...
- const uint16_t *qmat, *bias;
- __align8 int16_t temp_block[64];
-
- assert((7&(int)(&temp_block[0])) == 0); //did gcc align it correctly?
-
- //s->fdct (block);
- ff_fdct_mmx (block); //cant be anything else ...
-
- 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 (
- "imul %%ecx \n\t"
- : "=d" (level), "=a"(dummy)
- : "a" ((block[0]>>2) + q), "c" (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_bias[qscale];
- qmat = s->q_intra_matrix16[qscale];
- } else {
- last_non_zero_p1 = 0;
- bias = s->q_inter_matrix16_bias[qscale];
- qmat = s->q_inter_matrix16[qscale];
- }
-
- if(s->out_format == FMT_H263 && s->mpeg_quant==0){
-
- asm volatile(
- "movd %%eax, %%mm3 \n\t" // last_non_zero_p1
- SPREADW(%%mm3)
- "pxor %%mm7, %%mm7 \n\t" // 0
- "pxor %%mm4, %%mm4 \n\t" // 0
- "movq (%2), %%mm5 \n\t" // qmat[0]
- "pxor %%mm6, %%mm6 \n\t"
- "psubw (%3), %%mm6 \n\t" // -bias[0]
- "movl $-128, %%eax \n\t"
- ".balign 16 \n\t"
- "1: \n\t"
- "pxor %%mm1, %%mm1 \n\t" // 0
- "movq (%1, %%eax), %%mm0 \n\t" // block[i]
- "pcmpgtw %%mm0, %%mm1 \n\t" // block[i] <= 0 ? 0xFF : 0x00
- "pxor %%mm1, %%mm0 \n\t"
- "psubw %%mm1, %%mm0 \n\t" // ABS(block[i])
- "psubusw %%mm6, %%mm0 \n\t" // ABS(block[i]) + bias[0]
- "pmulhw %%mm5, %%mm0 \n\t" // (ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16
- "por %%mm0, %%mm4 \n\t"
- "pxor %%mm1, %%mm0 \n\t"
- "psubw %%mm1, %%mm0 \n\t" // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
- "movq %%mm0, (%5, %%eax) \n\t"
- "pcmpeqw %%mm7, %%mm0 \n\t" // out==0 ? 0xFF : 0x00
- "movq (%4, %%eax), %%mm1 \n\t"
- "movq %%mm7, (%1, %%eax) \n\t" // 0
- "pandn %%mm1, %%mm0 \n\t"
- PMAXW(%%mm0, %%mm3)
- "addl $8, %%eax \n\t"
- " js 1b \n\t"
- "movq %%mm3, %%mm0 \n\t"
- "psrlq $32, %%mm3 \n\t"
- PMAXW(%%mm0, %%mm3)
- "movq %%mm3, %%mm0 \n\t"
- "psrlq $16, %%mm3 \n\t"
- PMAXW(%%mm0, %%mm3)
- "movd %%mm3, %%eax \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)
- );
- // note the asm is split cuz gcc doesnt like that many operands ...
- asm volatile(
- "movd %1, %%mm1 \n\t" // max_qcoeff
- SPREADW(%%mm1)
- "psubusw %%mm1, %%mm4 \n\t"
- "packuswb %%mm4, %%mm4 \n\t"
- "movd %%mm4, %0 \n\t" // *overflow
- : "=g" (*overflow)
- : "g" (s->max_qcoeff)
- );
- }else{ // FMT_H263
- asm volatile(
- "movd %%eax, %%mm3 \n\t" // last_non_zero_p1
- SPREADW(%%mm3)
- "pxor %%mm7, %%mm7 \n\t" // 0
- "pxor %%mm4, %%mm4 \n\t" // 0
- "movl $-128, %%eax \n\t"
- ".balign 16 \n\t"
- "1: \n\t"
- "pxor %%mm1, %%mm1 \n\t" // 0
- "movq (%1, %%eax), %%mm0 \n\t" // block[i]
- "pcmpgtw %%mm0, %%mm1 \n\t" // block[i] <= 0 ? 0xFF : 0x00
- "pxor %%mm1, %%mm0 \n\t"
- "psubw %%mm1, %%mm0 \n\t" // ABS(block[i])
- "movq (%3, %%eax), %%mm6 \n\t" // bias[0]
- "paddusw %%mm6, %%mm0 \n\t" // ABS(block[i]) + bias[0]
- "movq (%2, %%eax), %%mm5 \n\t" // qmat[i]
- "pmulhw %%mm5, %%mm0 \n\t" // (ABS(block[i])*qmat[0] + bias[0]*qmat[0])>>16
- "por %%mm0, %%mm4 \n\t"
- "pxor %%mm1, %%mm0 \n\t"
- "psubw %%mm1, %%mm0 \n\t" // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
- "movq %%mm0, (%5, %%eax) \n\t"
- "pcmpeqw %%mm7, %%mm0 \n\t" // out==0 ? 0xFF : 0x00
- "movq (%4, %%eax), %%mm1 \n\t"
- "movq %%mm7, (%1, %%eax) \n\t" // 0
- "pandn %%mm1, %%mm0 \n\t"
- PMAXW(%%mm0, %%mm3)
- "addl $8, %%eax \n\t"
- " js 1b \n\t"
- "movq %%mm3, %%mm0 \n\t"
- "psrlq $32, %%mm3 \n\t"
- PMAXW(%%mm0, %%mm3)
- "movq %%mm3, %%mm0 \n\t"
- "psrlq $16, %%mm3 \n\t"
- PMAXW(%%mm0, %%mm3)
- "movd %%mm3, %%eax \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)
- );
- // note the asm is split cuz gcc doesnt like that many operands ...
- asm volatile(
- "movd %1, %%mm1 \n\t" // max_qcoeff
- SPREADW(%%mm1)
- "psubusw %%mm1, %%mm4 \n\t"
- "packuswb %%mm4, %%mm4 \n\t"
- "movd %%mm4, %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;
-}
projects / synfig.git / blobdiff