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Diffstat (limited to 'src/include/vector_op.h')
| -rw-r--r-- | src/include/vector_op.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/include/vector_op.h b/src/include/vector_op.h new file mode 100644 index 0000000..f8ea8dd --- /dev/null +++ b/src/include/vector_op.h @@ -0,0 +1,44 @@ +/* + Apply a C arithmetical operator to two sample buffers. + Copyright 2012 David Robillard + + This is free software: you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This software 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this software. If not, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef BLOP_VECTOR_OP_H +#define BLOP_VECTOR_OP_H + +#define VECTOR_OP(op, output, input1, input1_is_cv, input2, input2_is_cv) \ + switch ((input1_is_cv << 1) + input2_is_cv) { \ + case 0: /* 00 (control * control) */ \ + output[0] = input1[0] * input2[0]; \ + break; \ + case 1: /* 01 (control * cv) */ \ + for (uint32_t s = 0; s < sample_count; ++s) { \ + output[s] = input1[0] * input2[s]; \ + } \ + break; \ + case 2: /* 10 (cv * control) */ \ + for (uint32_t s = 0; s < sample_count; ++s) { \ + output[s] = input1[s] * input2[0]; \ + } \ + break; \ + case 3: /* 11 (cv * cv) */ \ + for (uint32_t s = 0; s < sample_count; ++s) { \ + output[s] = input1[s] * input2[s]; \ + } \ + break; \ + } + +#endif /* BLOP_VECTOR_OP_H */ |