--- /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