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| 1 /* | 1 /* |
| 2 * VC-1 and WMV3 decoder - DSP functions AltiVec-optimized | 2 * VC-1 and WMV3 decoder - DSP functions AltiVec-optimized |
| 3 * Copyright (c) 2006 Konstantin Shishkov | 3 * Copyright (c) 2006 Konstantin Shishkov |
| 4 * | 4 * |
| 5 * This file is part of FFmpeg. | 5 * This file is part of FFmpeg. |
| 6 * | 6 * |
| 7 * FFmpeg is free software; you can redistribute it and/or | 7 * FFmpeg is free software; you can redistribute it and/or |
| 8 * modify it under the terms of the GNU Lesser General Public | 8 * modify it under the terms of the GNU Lesser General Public |
| 9 * License as published by the Free Software Foundation; either | 9 * License as published by the Free Software Foundation; either |
| 10 * version 2.1 of the License, or (at your option) any later version. | 10 * version 2.1 of the License, or (at your option) any later version. |
| 11 * | 11 * |
| 12 * FFmpeg is distributed in the hope that it will be useful, | 12 * FFmpeg is distributed in the hope that it will be useful, |
| 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 * Lesser General Public License for more details. | 15 * Lesser General Public License for more details. |
| 16 * | 16 * |
| 17 * You should have received a copy of the GNU Lesser General Public | 17 * You should have received a copy of the GNU Lesser General Public |
| 18 * License along with FFmpeg; if not, write to the Free Software | 18 * License along with FFmpeg; if not, write to the Free Software |
| 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 20 */ | 20 */ |
| 21 | 21 |
| 22 #include "libavcodec/dsputil.h" | 22 #include "libavcodec/dsputil.h" |
| 23 | 23 |
| 24 #include "util_altivec.h" | 24 #include "util_altivec.h" |
| 25 #include "dsputil_altivec.h" |
| 25 | 26 |
| 26 // main steps of 8x8 transform | 27 // main steps of 8x8 transform |
| 27 #define STEP8(s0, s1, s2, s3, s4, s5, s6, s7, vec_rnd) \ | 28 #define STEP8(s0, s1, s2, s3, s4, s5, s6, s7, vec_rnd) \ |
| 28 do { \ | 29 do { \ |
| 29 t0 = vec_sl(vec_add(s0, s4), vec_2); \ | 30 t0 = vec_sl(vec_add(s0, s4), vec_2); \ |
| 30 t0 = vec_add(vec_sl(t0, vec_1), t0); \ | 31 t0 = vec_add(vec_sl(t0, vec_1), t0); \ |
| 31 t0 = vec_add(t0, vec_rnd); \ | 32 t0 = vec_add(t0, vec_rnd); \ |
| 32 t1 = vec_sl(vec_sub(s0, s4), vec_2); \ | 33 t1 = vec_sl(vec_sub(s0, s4), vec_2); \ |
| 33 t1 = vec_add(vec_sl(t1, vec_1), t1); \ | 34 t1 = vec_add(vec_sl(t1, vec_1), t1); \ |
| 34 t1 = vec_add(t1, vec_rnd); \ | 35 t1 = vec_add(t1, vec_rnd); \ |
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| 319 ADD (dest, src1, perm1) dest += stride; | 320 ADD (dest, src1, perm1) dest += stride; |
| 320 ADD (dest, src2, perm0) dest += stride; | 321 ADD (dest, src2, perm0) dest += stride; |
| 321 ADD (dest, src3, perm1) | 322 ADD (dest, src3, perm1) |
| 322 } | 323 } |
| 323 | 324 |
| 324 | 325 |
| 325 void vc1dsp_init_altivec(DSPContext* dsp, AVCodecContext *avctx) { | 326 void vc1dsp_init_altivec(DSPContext* dsp, AVCodecContext *avctx) { |
| 326 dsp->vc1_inv_trans_8x8 = vc1_inv_trans_8x8_altivec; | 327 dsp->vc1_inv_trans_8x8 = vc1_inv_trans_8x8_altivec; |
| 327 dsp->vc1_inv_trans_8x4 = vc1_inv_trans_8x4_altivec; | 328 dsp->vc1_inv_trans_8x4 = vc1_inv_trans_8x4_altivec; |
| 328 } | 329 } |
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