mirror of
https://github.com/CTCaer/RetroArch.git
synced 2024-12-23 11:18:25 +00:00
294 lines
7.9 KiB
C
294 lines
7.9 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "filter.h"
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#include "../dynamic.h"
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#include "../general.h"
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#include "../performance.h"
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#include <stdlib.h>
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#ifdef HAVE_CONFIG_H
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#include "../config.h"
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#endif
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#ifdef HAVE_THREADS
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#include "../thread.h"
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struct filter_thread_data
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{
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sthread_t *thread;
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const struct softfilter_work_packet *packet;
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scond_t *cond;
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slock_t *lock;
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void *userdata;
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bool die;
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bool done;
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};
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static void filter_thread_loop(void *data)
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{
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struct filter_thread_data *thr = (struct filter_thread_data*)data;
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for (;;)
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{
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slock_lock(thr->lock);
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while (thr->done && !thr->die)
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scond_wait(thr->cond, thr->lock);
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bool die = thr->die;
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slock_unlock(thr->lock);
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if (die)
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break;
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thr->packet->work(thr->userdata, thr->packet->thread_data);
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slock_lock(thr->lock);
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thr->done = true;
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scond_signal(thr->cond);
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slock_unlock(thr->lock);
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}
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}
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#endif
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struct rarch_softfilter
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{
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dylib_t lib;
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const struct softfilter_implementation *impl;
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void *impl_data;
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unsigned max_width, max_height;
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enum retro_pixel_format pix_fmt, out_pix_fmt;
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struct softfilter_work_packet *packets;
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unsigned threads;
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#ifdef HAVE_THREADS
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struct filter_thread_data *thread_data;
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#endif
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};
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rarch_softfilter_t *rarch_softfilter_new(const char *filter_path,
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unsigned threads,
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enum retro_pixel_format in_pixel_format,
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unsigned max_width, unsigned max_height)
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{
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unsigned i;
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unsigned cpu_features, output_fmts, input_fmts, input_fmt;
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softfilter_get_implementation_t cb;
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rarch_softfilter_t *filt = (rarch_softfilter_t*)calloc(1, sizeof(*filt));
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if (!filt)
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return NULL;
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filt->lib = dylib_load(filter_path);
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if (!filt->lib)
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goto error;
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cb = (softfilter_get_implementation_t)dylib_proc(filt->lib, "softfilter_get_implementation");
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if (!cb)
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{
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RARCH_ERR("Couldn't find softfilter symbol.\n");
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goto error;
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}
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cpu_features = rarch_get_cpu_features();
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filt->impl = cb(cpu_features);
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if (!filt->impl)
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goto error;
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RARCH_LOG("Loaded softfilter \"%s\".\n", filt->impl->ident);
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if (filt->impl->api_version != SOFTFILTER_API_VERSION)
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{
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RARCH_ERR("Softfilter ABI mismatch.\n");
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goto error;
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}
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// Simple assumptions.
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filt->pix_fmt = in_pixel_format;
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input_fmts = filt->impl->query_input_formats();
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switch (in_pixel_format)
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{
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case RETRO_PIXEL_FORMAT_XRGB8888:
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input_fmt = SOFTFILTER_FMT_XRGB8888;
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break;
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case RETRO_PIXEL_FORMAT_RGB565:
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input_fmt = SOFTFILTER_FMT_RGB565;
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break;
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default:
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goto error;
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}
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if (!(input_fmt & input_fmts))
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{
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RARCH_ERR("Softfilter does not support input format.\n");
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goto error;
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}
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output_fmts = filt->impl->query_output_formats(input_fmt);
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if (output_fmts & input_fmt) // If we have a match of input/output formats, use that.
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filt->out_pix_fmt = in_pixel_format;
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else if (output_fmts & SOFTFILTER_FMT_XRGB8888)
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filt->out_pix_fmt = RETRO_PIXEL_FORMAT_XRGB8888;
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else if (output_fmts & SOFTFILTER_FMT_RGB565)
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filt->out_pix_fmt = RETRO_PIXEL_FORMAT_RGB565;
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else
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{
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RARCH_ERR("Did not find suitable output format for softfilter.\n");
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goto error;
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}
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filt->max_width = max_width;
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filt->max_height = max_height;
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filt->impl_data = filt->impl->create(input_fmt, input_fmt, max_width, max_height,
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threads != RARCH_SOFTFILTER_THREADS_AUTO ? threads : rarch_get_cpu_cores(), cpu_features);
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if (!filt->impl_data)
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{
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RARCH_ERR("Failed to create softfilter state.\n");
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goto error;
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}
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threads = filt->impl->query_num_threads(filt->impl_data);
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if (!threads)
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{
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RARCH_ERR("Invalid number of threads.\n");
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goto error;
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}
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RARCH_LOG("Using %u threads for softfilter.\n", threads);
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filt->packets = (struct softfilter_work_packet*)calloc(threads, sizeof(*filt->packets));
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if (!filt->packets)
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{
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RARCH_ERR("Failed to allocate softfilter packets.\n");
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goto error;
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}
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#ifdef HAVE_THREADS
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filt->thread_data = (struct filter_thread_data*)calloc(threads, sizeof(*filt->thread_data));
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if (!filt->thread_data)
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goto error;
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filt->threads = threads;
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for (i = 0; i < threads; i++)
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{
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filt->thread_data[i].userdata = filt->impl_data;
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filt->thread_data[i].done = true;
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filt->thread_data[i].lock = slock_new();
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if (!filt->thread_data[i].lock)
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goto error;
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filt->thread_data[i].cond = scond_new();
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if (!filt->thread_data[i].cond)
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goto error;
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filt->thread_data[i].thread = sthread_create(filter_thread_loop, &filt->thread_data[i]);
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if (!filt->thread_data[i].thread)
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goto error;
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}
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#endif
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return filt;
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error:
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rarch_softfilter_free(filt);
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return NULL;
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}
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void rarch_softfilter_free(rarch_softfilter_t *filt)
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{
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unsigned i;
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if (!filt)
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return;
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free(filt->packets);
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if (filt->impl && filt->impl_data)
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filt->impl->destroy(filt->impl_data);
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if (filt->lib)
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dylib_close(filt->lib);
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#ifdef HAVE_THREADS
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for (i = 0; i < filt->threads; i++)
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{
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if (!filt->thread_data[i].thread)
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continue;
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slock_lock(filt->thread_data[i].lock);
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filt->thread_data[i].die = true;
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scond_signal(filt->thread_data[i].cond);
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slock_unlock(filt->thread_data[i].lock);
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sthread_join(filt->thread_data[i].thread);
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slock_free(filt->thread_data[i].lock);
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scond_free(filt->thread_data[i].cond);
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}
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free(filt->thread_data);
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#endif
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free(filt);
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}
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void rarch_softfilter_get_max_output_size(rarch_softfilter_t *filt,
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unsigned *width, unsigned *height)
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{
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rarch_softfilter_get_output_size(filt, width, height, filt->max_width, filt->max_height);
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}
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void rarch_softfilter_get_output_size(rarch_softfilter_t *filt,
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unsigned *out_width, unsigned *out_height,
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unsigned width, unsigned height)
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{
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filt->impl->query_output_size(filt->impl_data, out_width, out_height, width, height);
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}
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enum retro_pixel_format rarch_softfilter_get_output_format(rarch_softfilter_t *filt)
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{
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return filt->out_pix_fmt;
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}
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void rarch_softfilter_process(rarch_softfilter_t *filt,
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void *output, size_t output_stride,
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const void *input, unsigned width, unsigned height, size_t input_stride)
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{
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unsigned i;
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filt->impl->get_work_packets(filt->impl_data, filt->packets,
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output, output_stride, input, width, height, input_stride);
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#ifdef HAVE_THREADS
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// Fire off workers
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for (i = 0; i < filt->threads; i++)
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{
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//RARCH_LOG("Firing off filter thread %u ...\n", i);
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filt->thread_data[i].packet = &filt->packets[i];
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slock_lock(filt->thread_data[i].lock);
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filt->thread_data[i].done = false;
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scond_signal(filt->thread_data[i].cond);
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slock_unlock(filt->thread_data[i].lock);
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}
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// Wait for workers
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for (i = 0; i < filt->threads; i++)
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{
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//RARCH_LOG("Waiting for filter thread %u ...\n", i);
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slock_lock(filt->thread_data[i].lock);
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while (!filt->thread_data[i].done)
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scond_wait(filt->thread_data[i].cond, filt->thread_data[i].lock);
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slock_unlock(filt->thread_data[i].lock);
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}
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#else
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for (i = 0; i < filt->threads; i++)
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filt->packets[i].work(filt->impl_data, filt->packets[i].thread_data);
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#endif
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}
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