notaz.gp2x.de / pcsx_rearmed.git / blame
| Commit | Line | Data |
|---|---|---|
| 3719602c PC |
1 | /* Copyright (C) 2010-2020 The RetroArch team |
| 2 | * | |
| 3 | * --------------------------------------------------------------------------------------- | |
| 4 | * The following license statement only applies to this file (echo.c). | |
| 5 | * --------------------------------------------------------------------------------------- | |
| 6 | * | |
| 7 | * Permission is hereby granted, free of charge, | |
| 8 | * to any person obtaining a copy of this software and associated documentation files (the "Software"), | |
| 9 | * to deal in the Software without restriction, including without limitation the rights to | |
| 10 | * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, | |
| 11 | * and to permit persons to whom the Software is furnished to do so, subject to the following conditions: | |
| 12 | * | |
| 13 | * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. | |
| 14 | * | |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, | |
| 16 | * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | |
| 18 | * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | |
| 19 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| 20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
| 21 | */ | |
| 22 | ||
| 23 | #include <math.h> | |
| 24 | #include <stdlib.h> | |
| 25 | #include <string.h> | |
| 26 | ||
| 27 | #include <retro_miscellaneous.h> | |
| 28 | #include <libretro_dspfilter.h> | |
| 29 | ||
| 30 | struct delta_data | |
| 31 | { | |
| 32 | float intensity; | |
| 33 | float old[2]; | |
| 34 | }; | |
| 35 | ||
| 36 | static void delta_free(void *data) | |
| 37 | { | |
| 38 | free(data); | |
| 39 | } | |
| 40 | ||
| 41 | static void delta_process(void *data, struct dspfilter_output *output, | |
| 42 | const struct dspfilter_input *input) | |
| 43 | { | |
| 44 | unsigned i, c; | |
| 45 | struct delta_data *d = (struct delta_data*)data; | |
| 46 | float *out = output->samples; | |
| 47 | output->samples = input->samples; | |
| 48 | output->frames = input->frames; | |
| 49 | ||
| 50 | for (i = 0; i < input->frames; i++) | |
| 51 | { | |
| 52 | for (c = 0; c < 2; c++) | |
| 53 | { | |
| 54 | float current = *out; | |
| 55 | *out++ = current + (current - d->old[c]) * d->intensity; | |
| 56 | d->old[c] = current; | |
| 57 | } | |
| 58 | } | |
| 59 | } | |
| 60 | ||
| 61 | static void *delta_init(const struct dspfilter_info *info, | |
| 62 | const struct dspfilter_config *config, void *userdata) | |
| 63 | { | |
| 64 | struct delta_data *d = (struct delta_data*)calloc(1, sizeof(*d)); | |
| 65 | if (!d) | |
| 66 | return NULL; | |
| 67 | config->get_float(userdata, "intensity", &d->intensity, 5.0f); | |
| 68 | return d; | |
| 69 | } | |
| 70 | ||
| 71 | static const struct dspfilter_implementation delta_plug = { | |
| 72 | delta_init, | |
| 73 | delta_process, | |
| 74 | delta_free, | |
| 75 | DSPFILTER_API_VERSION, | |
| 76 | "Delta Sharpening", | |
| 77 | "crystalizer", | |
| 78 | }; | |
| 79 | ||
| 80 | #ifdef HAVE_FILTERS_BUILTIN | |
| 81 | #define dspfilter_get_implementation delta_dspfilter_get_implementation | |
| 82 | #endif | |
| 83 | ||
| 84 | const struct dspfilter_implementation *dspfilter_get_implementation(dspfilter_simd_mask_t mask) | |
| 85 | { | |
| 86 | return &delta_plug; | |
| 87 | } | |
| 88 | ||
| 89 | #undef dspfilter_get_implementation |