| 1 | /* |
| 2 | * MPEG video MMX templates |
| 3 | * |
| 4 | * Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at> |
| 5 | * |
| 6 | * This file is part of FFmpeg. |
| 7 | * |
| 8 | * FFmpeg is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU Lesser General Public |
| 10 | * License as published by the Free Software Foundation; either |
| 11 | * version 2.1 of the License, or (at your option) any later version. |
| 12 | * |
| 13 | * FFmpeg is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * Lesser General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU Lesser General Public |
| 19 | * License along with FFmpeg; if not, write to the Free Software |
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 21 | */ |
| 22 | |
| 23 | #include <stdint.h> |
| 24 | |
| 25 | #include "libavutil/internal.h" |
| 26 | #include "libavutil/x86/asm.h" |
| 27 | #include "libavcodec/mpegvideo.h" |
| 28 | #include "fdct.h" |
| 29 | |
| 30 | #undef MMREG_WIDTH |
| 31 | #undef MM |
| 32 | #undef MOVQ |
| 33 | #undef SPREADW |
| 34 | #undef PMAXW |
| 35 | #undef PMAX |
| 36 | #undef SAVE_SIGN |
| 37 | #undef RESTORE_SIGN |
| 38 | |
| 39 | #if COMPILE_TEMPLATE_SSE2 |
| 40 | #define MMREG_WIDTH "16" |
| 41 | #define MM "%%xmm" |
| 42 | #define MOVQ "movdqa" |
| 43 | #define SPREADW(a) \ |
| 44 | "pshuflw $0, "a", "a" \n\t"\ |
| 45 | "punpcklwd "a", "a" \n\t" |
| 46 | #define PMAXW(a,b) "pmaxsw "a", "b" \n\t" |
| 47 | #define PMAX(a,b) \ |
| 48 | "movhlps "a", "b" \n\t"\ |
| 49 | PMAXW(b, a)\ |
| 50 | "pshuflw $0x0E, "a", "b" \n\t"\ |
| 51 | PMAXW(b, a)\ |
| 52 | "pshuflw $0x01, "a", "b" \n\t"\ |
| 53 | PMAXW(b, a) |
| 54 | #else |
| 55 | #define MMREG_WIDTH "8" |
| 56 | #define MM "%%mm" |
| 57 | #define MOVQ "movq" |
| 58 | #if COMPILE_TEMPLATE_MMXEXT |
| 59 | #define SPREADW(a) "pshufw $0, "a", "a" \n\t" |
| 60 | #define PMAXW(a,b) "pmaxsw "a", "b" \n\t" |
| 61 | #define PMAX(a,b) \ |
| 62 | "pshufw $0x0E, "a", "b" \n\t"\ |
| 63 | PMAXW(b, a)\ |
| 64 | "pshufw $0x01, "a", "b" \n\t"\ |
| 65 | PMAXW(b, a) |
| 66 | #else |
| 67 | #define SPREADW(a) \ |
| 68 | "punpcklwd "a", "a" \n\t"\ |
| 69 | "punpcklwd "a", "a" \n\t" |
| 70 | #define PMAXW(a,b) \ |
| 71 | "psubusw "a", "b" \n\t"\ |
| 72 | "paddw "a", "b" \n\t" |
| 73 | #define PMAX(a,b) \ |
| 74 | "movq "a", "b" \n\t"\ |
| 75 | "psrlq $32, "a" \n\t"\ |
| 76 | PMAXW(b, a)\ |
| 77 | "movq "a", "b" \n\t"\ |
| 78 | "psrlq $16, "a" \n\t"\ |
| 79 | PMAXW(b, a) |
| 80 | |
| 81 | #endif |
| 82 | #endif |
| 83 | |
| 84 | #if COMPILE_TEMPLATE_SSSE3 |
| 85 | #define SAVE_SIGN(a,b) \ |
| 86 | "movdqa "b", "a" \n\t"\ |
| 87 | "pabsw "b", "b" \n\t" |
| 88 | #define RESTORE_SIGN(a,b) \ |
| 89 | "psignw "a", "b" \n\t" |
| 90 | #else |
| 91 | #define SAVE_SIGN(a,b) \ |
| 92 | "pxor "a", "a" \n\t"\ |
| 93 | "pcmpgtw "b", "a" \n\t" /* block[i] <= 0 ? 0xFF : 0x00 */\ |
| 94 | "pxor "a", "b" \n\t"\ |
| 95 | "psubw "a", "b" \n\t" /* ABS(block[i]) */ |
| 96 | #define RESTORE_SIGN(a,b) \ |
| 97 | "pxor "a", "b" \n\t"\ |
| 98 | "psubw "a", "b" \n\t" // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i]) |
| 99 | #endif |
| 100 | |
| 101 | static int RENAME(dct_quantize)(MpegEncContext *s, |
| 102 | int16_t *block, int n, |
| 103 | int qscale, int *overflow) |
| 104 | { |
| 105 | x86_reg last_non_zero_p1; |
| 106 | int level=0, q; //=0 is because gcc says uninitialized ... |
| 107 | const uint16_t *qmat, *bias; |
| 108 | LOCAL_ALIGNED_16(int16_t, temp_block, [64]); |
| 109 | |
| 110 | av_assert2((7&(int)(&temp_block[0])) == 0); //did gcc align it correctly? |
| 111 | |
| 112 | //s->fdct (block); |
| 113 | RENAME_FDCT(ff_fdct)(block); // cannot be anything else ... |
| 114 | |
| 115 | if(s->dct_error_sum) |
| 116 | s->denoise_dct(s, block); |
| 117 | |
| 118 | if (s->mb_intra) { |
| 119 | int dummy; |
| 120 | if (n < 4){ |
| 121 | q = s->y_dc_scale; |
| 122 | bias = s->q_intra_matrix16[qscale][1]; |
| 123 | qmat = s->q_intra_matrix16[qscale][0]; |
| 124 | }else{ |
| 125 | q = s->c_dc_scale; |
| 126 | bias = s->q_chroma_intra_matrix16[qscale][1]; |
| 127 | qmat = s->q_chroma_intra_matrix16[qscale][0]; |
| 128 | } |
| 129 | /* note: block[0] is assumed to be positive */ |
| 130 | if (!s->h263_aic) { |
| 131 | __asm__ volatile ( |
| 132 | "mul %%ecx \n\t" |
| 133 | : "=d" (level), "=a"(dummy) |
| 134 | : "a" ((block[0]>>2) + q), "c" (ff_inverse[q<<1]) |
| 135 | ); |
| 136 | } else |
| 137 | /* For AIC we skip quant/dequant of INTRADC */ |
| 138 | level = (block[0] + 4)>>3; |
| 139 | |
| 140 | block[0]=0; //avoid fake overflow |
| 141 | // temp_block[0] = (block[0] + (q >> 1)) / q; |
| 142 | last_non_zero_p1 = 1; |
| 143 | } else { |
| 144 | last_non_zero_p1 = 0; |
| 145 | bias = s->q_inter_matrix16[qscale][1]; |
| 146 | qmat = s->q_inter_matrix16[qscale][0]; |
| 147 | } |
| 148 | |
| 149 | if((s->out_format == FMT_H263 || s->out_format == FMT_H261) && s->mpeg_quant==0){ |
| 150 | |
| 151 | __asm__ volatile( |
| 152 | "movd %%"REG_a", "MM"3 \n\t" // last_non_zero_p1 |
| 153 | SPREADW(MM"3") |
| 154 | "pxor "MM"7, "MM"7 \n\t" // 0 |
| 155 | "pxor "MM"4, "MM"4 \n\t" // 0 |
| 156 | MOVQ" (%2), "MM"5 \n\t" // qmat[0] |
| 157 | "pxor "MM"6, "MM"6 \n\t" |
| 158 | "psubw (%3), "MM"6 \n\t" // -bias[0] |
| 159 | "mov $-128, %%"REG_a" \n\t" |
| 160 | ".p2align 4 \n\t" |
| 161 | "1: \n\t" |
| 162 | MOVQ" (%1, %%"REG_a"), "MM"0 \n\t" // block[i] |
| 163 | SAVE_SIGN(MM"1", MM"0") // ABS(block[i]) |
| 164 | "psubusw "MM"6, "MM"0 \n\t" // ABS(block[i]) + bias[0] |
| 165 | "pmulhw "MM"5, "MM"0 \n\t" // (ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16 |
| 166 | "por "MM"0, "MM"4 \n\t" |
| 167 | RESTORE_SIGN(MM"1", MM"0") // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i]) |
| 168 | MOVQ" "MM"0, (%5, %%"REG_a") \n\t" |
| 169 | "pcmpeqw "MM"7, "MM"0 \n\t" // out==0 ? 0xFF : 0x00 |
| 170 | MOVQ" (%4, %%"REG_a"), "MM"1 \n\t" |
| 171 | MOVQ" "MM"7, (%1, %%"REG_a") \n\t" // 0 |
| 172 | "pandn "MM"1, "MM"0 \n\t" |
| 173 | PMAXW(MM"0", MM"3") |
| 174 | "add $"MMREG_WIDTH", %%"REG_a" \n\t" |
| 175 | " js 1b \n\t" |
| 176 | PMAX(MM"3", MM"0") |
| 177 | "movd "MM"3, %%"REG_a" \n\t" |
| 178 | "movzbl %%al, %%eax \n\t" // last_non_zero_p1 |
| 179 | : "+a" (last_non_zero_p1) |
| 180 | : "r" (block+64), "r" (qmat), "r" (bias), |
| 181 | "r" (inv_zigzag_direct16 + 64), "r" (temp_block + 64) |
| 182 | XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3", |
| 183 | "%xmm4", "%xmm5", "%xmm6", "%xmm7") |
| 184 | ); |
| 185 | }else{ // FMT_H263 |
| 186 | __asm__ volatile( |
| 187 | "movd %%"REG_a", "MM"3 \n\t" // last_non_zero_p1 |
| 188 | SPREADW(MM"3") |
| 189 | "pxor "MM"7, "MM"7 \n\t" // 0 |
| 190 | "pxor "MM"4, "MM"4 \n\t" // 0 |
| 191 | "mov $-128, %%"REG_a" \n\t" |
| 192 | ".p2align 4 \n\t" |
| 193 | "1: \n\t" |
| 194 | MOVQ" (%1, %%"REG_a"), "MM"0 \n\t" // block[i] |
| 195 | SAVE_SIGN(MM"1", MM"0") // ABS(block[i]) |
| 196 | MOVQ" (%3, %%"REG_a"), "MM"6 \n\t" // bias[0] |
| 197 | "paddusw "MM"6, "MM"0 \n\t" // ABS(block[i]) + bias[0] |
| 198 | MOVQ" (%2, %%"REG_a"), "MM"5 \n\t" // qmat[i] |
| 199 | "pmulhw "MM"5, "MM"0 \n\t" // (ABS(block[i])*qmat[0] + bias[0]*qmat[0])>>16 |
| 200 | "por "MM"0, "MM"4 \n\t" |
| 201 | RESTORE_SIGN(MM"1", MM"0") // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i]) |
| 202 | MOVQ" "MM"0, (%5, %%"REG_a") \n\t" |
| 203 | "pcmpeqw "MM"7, "MM"0 \n\t" // out==0 ? 0xFF : 0x00 |
| 204 | MOVQ" (%4, %%"REG_a"), "MM"1 \n\t" |
| 205 | MOVQ" "MM"7, (%1, %%"REG_a") \n\t" // 0 |
| 206 | "pandn "MM"1, "MM"0 \n\t" |
| 207 | PMAXW(MM"0", MM"3") |
| 208 | "add $"MMREG_WIDTH", %%"REG_a" \n\t" |
| 209 | " js 1b \n\t" |
| 210 | PMAX(MM"3", MM"0") |
| 211 | "movd "MM"3, %%"REG_a" \n\t" |
| 212 | "movzbl %%al, %%eax \n\t" // last_non_zero_p1 |
| 213 | : "+a" (last_non_zero_p1) |
| 214 | : "r" (block+64), "r" (qmat+64), "r" (bias+64), |
| 215 | "r" (inv_zigzag_direct16 + 64), "r" (temp_block + 64) |
| 216 | XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3", |
| 217 | "%xmm4", "%xmm5", "%xmm6", "%xmm7") |
| 218 | ); |
| 219 | } |
| 220 | __asm__ volatile( |
| 221 | "movd %1, "MM"1 \n\t" // max_qcoeff |
| 222 | SPREADW(MM"1") |
| 223 | "psubusw "MM"1, "MM"4 \n\t" |
| 224 | "packuswb "MM"4, "MM"4 \n\t" |
| 225 | #if COMPILE_TEMPLATE_SSE2 |
| 226 | "packsswb "MM"4, "MM"4 \n\t" |
| 227 | #endif |
| 228 | "movd "MM"4, %0 \n\t" // *overflow |
| 229 | : "=g" (*overflow) |
| 230 | : "g" (s->max_qcoeff) |
| 231 | ); |
| 232 | |
| 233 | if(s->mb_intra) block[0]= level; |
| 234 | else block[0]= temp_block[0]; |
| 235 | |
| 236 | if (s->idsp.perm_type == FF_IDCT_PERM_SIMPLE) { |
| 237 | if(last_non_zero_p1 <= 1) goto end; |
| 238 | block[0x08] = temp_block[0x01]; block[0x10] = temp_block[0x08]; |
| 239 | block[0x20] = temp_block[0x10]; |
| 240 | if(last_non_zero_p1 <= 4) goto end; |
| 241 | block[0x18] = temp_block[0x09]; block[0x04] = temp_block[0x02]; |
| 242 | block[0x09] = temp_block[0x03]; |
| 243 | if(last_non_zero_p1 <= 7) goto end; |
| 244 | block[0x14] = temp_block[0x0A]; block[0x28] = temp_block[0x11]; |
| 245 | block[0x12] = temp_block[0x18]; block[0x02] = temp_block[0x20]; |
| 246 | if(last_non_zero_p1 <= 11) goto end; |
| 247 | block[0x1A] = temp_block[0x19]; block[0x24] = temp_block[0x12]; |
| 248 | block[0x19] = temp_block[0x0B]; block[0x01] = temp_block[0x04]; |
| 249 | block[0x0C] = temp_block[0x05]; |
| 250 | if(last_non_zero_p1 <= 16) goto end; |
| 251 | block[0x11] = temp_block[0x0C]; block[0x29] = temp_block[0x13]; |
| 252 | block[0x16] = temp_block[0x1A]; block[0x0A] = temp_block[0x21]; |
| 253 | block[0x30] = temp_block[0x28]; block[0x22] = temp_block[0x30]; |
| 254 | block[0x38] = temp_block[0x29]; block[0x06] = temp_block[0x22]; |
| 255 | if(last_non_zero_p1 <= 24) goto end; |
| 256 | block[0x1B] = temp_block[0x1B]; block[0x21] = temp_block[0x14]; |
| 257 | block[0x1C] = temp_block[0x0D]; block[0x05] = temp_block[0x06]; |
| 258 | block[0x0D] = temp_block[0x07]; block[0x15] = temp_block[0x0E]; |
| 259 | block[0x2C] = temp_block[0x15]; block[0x13] = temp_block[0x1C]; |
| 260 | if(last_non_zero_p1 <= 32) goto end; |
| 261 | block[0x0B] = temp_block[0x23]; block[0x34] = temp_block[0x2A]; |
| 262 | block[0x2A] = temp_block[0x31]; block[0x32] = temp_block[0x38]; |
| 263 | block[0x3A] = temp_block[0x39]; block[0x26] = temp_block[0x32]; |
| 264 | block[0x39] = temp_block[0x2B]; block[0x03] = temp_block[0x24]; |
| 265 | if(last_non_zero_p1 <= 40) goto end; |
| 266 | block[0x1E] = temp_block[0x1D]; block[0x25] = temp_block[0x16]; |
| 267 | block[0x1D] = temp_block[0x0F]; block[0x2D] = temp_block[0x17]; |
| 268 | block[0x17] = temp_block[0x1E]; block[0x0E] = temp_block[0x25]; |
| 269 | block[0x31] = temp_block[0x2C]; block[0x2B] = temp_block[0x33]; |
| 270 | if(last_non_zero_p1 <= 48) goto end; |
| 271 | block[0x36] = temp_block[0x3A]; block[0x3B] = temp_block[0x3B]; |
| 272 | block[0x23] = temp_block[0x34]; block[0x3C] = temp_block[0x2D]; |
| 273 | block[0x07] = temp_block[0x26]; block[0x1F] = temp_block[0x1F]; |
| 274 | block[0x0F] = temp_block[0x27]; block[0x35] = temp_block[0x2E]; |
| 275 | if(last_non_zero_p1 <= 56) goto end; |
| 276 | block[0x2E] = temp_block[0x35]; block[0x33] = temp_block[0x3C]; |
| 277 | block[0x3E] = temp_block[0x3D]; block[0x27] = temp_block[0x36]; |
| 278 | block[0x3D] = temp_block[0x2F]; block[0x2F] = temp_block[0x37]; |
| 279 | block[0x37] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F]; |
| 280 | }else if(s->idsp.perm_type == FF_IDCT_PERM_LIBMPEG2){ |
| 281 | if(last_non_zero_p1 <= 1) goto end; |
| 282 | block[0x04] = temp_block[0x01]; |
| 283 | block[0x08] = temp_block[0x08]; block[0x10] = temp_block[0x10]; |
| 284 | if(last_non_zero_p1 <= 4) goto end; |
| 285 | block[0x0C] = temp_block[0x09]; block[0x01] = temp_block[0x02]; |
| 286 | block[0x05] = temp_block[0x03]; |
| 287 | if(last_non_zero_p1 <= 7) goto end; |
| 288 | block[0x09] = temp_block[0x0A]; block[0x14] = temp_block[0x11]; |
| 289 | block[0x18] = temp_block[0x18]; block[0x20] = temp_block[0x20]; |
| 290 | if(last_non_zero_p1 <= 11) goto end; |
| 291 | block[0x1C] = temp_block[0x19]; |
| 292 | block[0x11] = temp_block[0x12]; block[0x0D] = temp_block[0x0B]; |
| 293 | block[0x02] = temp_block[0x04]; block[0x06] = temp_block[0x05]; |
| 294 | if(last_non_zero_p1 <= 16) goto end; |
| 295 | block[0x0A] = temp_block[0x0C]; block[0x15] = temp_block[0x13]; |
| 296 | block[0x19] = temp_block[0x1A]; block[0x24] = temp_block[0x21]; |
| 297 | block[0x28] = temp_block[0x28]; block[0x30] = temp_block[0x30]; |
| 298 | block[0x2C] = temp_block[0x29]; block[0x21] = temp_block[0x22]; |
| 299 | if(last_non_zero_p1 <= 24) goto end; |
| 300 | block[0x1D] = temp_block[0x1B]; block[0x12] = temp_block[0x14]; |
| 301 | block[0x0E] = temp_block[0x0D]; block[0x03] = temp_block[0x06]; |
| 302 | block[0x07] = temp_block[0x07]; block[0x0B] = temp_block[0x0E]; |
| 303 | block[0x16] = temp_block[0x15]; block[0x1A] = temp_block[0x1C]; |
| 304 | if(last_non_zero_p1 <= 32) goto end; |
| 305 | block[0x25] = temp_block[0x23]; block[0x29] = temp_block[0x2A]; |
| 306 | block[0x34] = temp_block[0x31]; block[0x38] = temp_block[0x38]; |
| 307 | block[0x3C] = temp_block[0x39]; block[0x31] = temp_block[0x32]; |
| 308 | block[0x2D] = temp_block[0x2B]; block[0x22] = temp_block[0x24]; |
| 309 | if(last_non_zero_p1 <= 40) goto end; |
| 310 | block[0x1E] = temp_block[0x1D]; block[0x13] = temp_block[0x16]; |
| 311 | block[0x0F] = temp_block[0x0F]; block[0x17] = temp_block[0x17]; |
| 312 | block[0x1B] = temp_block[0x1E]; block[0x26] = temp_block[0x25]; |
| 313 | block[0x2A] = temp_block[0x2C]; block[0x35] = temp_block[0x33]; |
| 314 | if(last_non_zero_p1 <= 48) goto end; |
| 315 | block[0x39] = temp_block[0x3A]; block[0x3D] = temp_block[0x3B]; |
| 316 | block[0x32] = temp_block[0x34]; block[0x2E] = temp_block[0x2D]; |
| 317 | block[0x23] = temp_block[0x26]; block[0x1F] = temp_block[0x1F]; |
| 318 | block[0x27] = temp_block[0x27]; block[0x2B] = temp_block[0x2E]; |
| 319 | if(last_non_zero_p1 <= 56) goto end; |
| 320 | block[0x36] = temp_block[0x35]; block[0x3A] = temp_block[0x3C]; |
| 321 | block[0x3E] = temp_block[0x3D]; block[0x33] = temp_block[0x36]; |
| 322 | block[0x2F] = temp_block[0x2F]; block[0x37] = temp_block[0x37]; |
| 323 | block[0x3B] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F]; |
| 324 | }else{ |
| 325 | if(last_non_zero_p1 <= 1) goto end; |
| 326 | block[0x01] = temp_block[0x01]; |
| 327 | block[0x08] = temp_block[0x08]; block[0x10] = temp_block[0x10]; |
| 328 | if(last_non_zero_p1 <= 4) goto end; |
| 329 | block[0x09] = temp_block[0x09]; block[0x02] = temp_block[0x02]; |
| 330 | block[0x03] = temp_block[0x03]; |
| 331 | if(last_non_zero_p1 <= 7) goto end; |
| 332 | block[0x0A] = temp_block[0x0A]; block[0x11] = temp_block[0x11]; |
| 333 | block[0x18] = temp_block[0x18]; block[0x20] = temp_block[0x20]; |
| 334 | if(last_non_zero_p1 <= 11) goto end; |
| 335 | block[0x19] = temp_block[0x19]; |
| 336 | block[0x12] = temp_block[0x12]; block[0x0B] = temp_block[0x0B]; |
| 337 | block[0x04] = temp_block[0x04]; block[0x05] = temp_block[0x05]; |
| 338 | if(last_non_zero_p1 <= 16) goto end; |
| 339 | block[0x0C] = temp_block[0x0C]; block[0x13] = temp_block[0x13]; |
| 340 | block[0x1A] = temp_block[0x1A]; block[0x21] = temp_block[0x21]; |
| 341 | block[0x28] = temp_block[0x28]; block[0x30] = temp_block[0x30]; |
| 342 | block[0x29] = temp_block[0x29]; block[0x22] = temp_block[0x22]; |
| 343 | if(last_non_zero_p1 <= 24) goto end; |
| 344 | block[0x1B] = temp_block[0x1B]; block[0x14] = temp_block[0x14]; |
| 345 | block[0x0D] = temp_block[0x0D]; block[0x06] = temp_block[0x06]; |
| 346 | block[0x07] = temp_block[0x07]; block[0x0E] = temp_block[0x0E]; |
| 347 | block[0x15] = temp_block[0x15]; block[0x1C] = temp_block[0x1C]; |
| 348 | if(last_non_zero_p1 <= 32) goto end; |
| 349 | block[0x23] = temp_block[0x23]; block[0x2A] = temp_block[0x2A]; |
| 350 | block[0x31] = temp_block[0x31]; block[0x38] = temp_block[0x38]; |
| 351 | block[0x39] = temp_block[0x39]; block[0x32] = temp_block[0x32]; |
| 352 | block[0x2B] = temp_block[0x2B]; block[0x24] = temp_block[0x24]; |
| 353 | if(last_non_zero_p1 <= 40) goto end; |
| 354 | block[0x1D] = temp_block[0x1D]; block[0x16] = temp_block[0x16]; |
| 355 | block[0x0F] = temp_block[0x0F]; block[0x17] = temp_block[0x17]; |
| 356 | block[0x1E] = temp_block[0x1E]; block[0x25] = temp_block[0x25]; |
| 357 | block[0x2C] = temp_block[0x2C]; block[0x33] = temp_block[0x33]; |
| 358 | if(last_non_zero_p1 <= 48) goto end; |
| 359 | block[0x3A] = temp_block[0x3A]; block[0x3B] = temp_block[0x3B]; |
| 360 | block[0x34] = temp_block[0x34]; block[0x2D] = temp_block[0x2D]; |
| 361 | block[0x26] = temp_block[0x26]; block[0x1F] = temp_block[0x1F]; |
| 362 | block[0x27] = temp_block[0x27]; block[0x2E] = temp_block[0x2E]; |
| 363 | if(last_non_zero_p1 <= 56) goto end; |
| 364 | block[0x35] = temp_block[0x35]; block[0x3C] = temp_block[0x3C]; |
| 365 | block[0x3D] = temp_block[0x3D]; block[0x36] = temp_block[0x36]; |
| 366 | block[0x2F] = temp_block[0x2F]; block[0x37] = temp_block[0x37]; |
| 367 | block[0x3E] = temp_block[0x3E]; block[0x3F] = temp_block[0x3F]; |
| 368 | } |
| 369 | end: |
| 370 | return last_non_zero_p1 - 1; |
| 371 | } |