| /* |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg 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 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg 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 FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #ifndef AVUTIL_FLOAT_DSP_H |
| #define AVUTIL_FLOAT_DSP_H |
| |
| typedef struct AVFloatDSPContext { |
| /** |
| * Calculate the product of two vectors of floats and store the result in |
| * a vector of floats. |
| * |
| * @param dst output vector |
| * constraints: 32-byte aligned |
| * @param src0 first input vector |
| * constraints: 32-byte aligned |
| * @param src1 second input vector |
| * constraints: 32-byte aligned |
| * @param len number of elements in the input |
| * constraints: multiple of 16 |
| */ |
| void (*vector_fmul)(float *dst, const float *src0, const float *src1, |
| int len); |
| |
| /** |
| * Multiply a vector of floats by a scalar float and add to |
| * destination vector. Source and destination vectors must |
| * overlap exactly or not at all. |
| * |
| * @param dst result vector |
| * constraints: 32-byte aligned |
| * @param src input vector |
| * constraints: 32-byte aligned |
| * @param mul scalar value |
| * @param len length of vector |
| * constraints: multiple of 16 |
| */ |
| void (*vector_fmac_scalar)(float *dst, const float *src, float mul, |
| int len); |
| } AVFloatDSPContext; |
| |
| /** |
| * Initialize a float DSP context. |
| * |
| * @param fdsp float DSP context |
| * @param strict setting to non-zero avoids using functions which may not be IEEE-754 compliant |
| */ |
| void avpriv_float_dsp_init(AVFloatDSPContext *fdsp, int strict); |
| |
| |
| void ff_float_dsp_init_arm(AVFloatDSPContext *fdsp); |
| void ff_float_dsp_init_ppc(AVFloatDSPContext *fdsp, int strict); |
| void ff_float_dsp_init_x86(AVFloatDSPContext *fdsp); |
| |
| #endif /* AVUTIL_FLOAT_DSP_H */ |