mirror of
https://github.com/libretro/RetroArch.git
synced 2024-12-05 06:57:19 +00:00
c146206d30
Don't require core to be loaded if it's found in g_settings.libretro.
186 lines
4.3 KiB
C
186 lines
4.3 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2013 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2013 - Daniel De Matteis
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* Copyright (C) 2012-2013 - Michael Lelli
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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 "libretro.h"
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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static uint16_t *frame_buf;
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void libretro_dummy_retro_init(void)
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{
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frame_buf = (uint16_t*)calloc(320 * 240, sizeof(uint16_t));
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}
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void libretro_dummy_retro_deinit(void)
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{
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free(frame_buf);
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frame_buf = NULL;
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}
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unsigned libretro_dummy_retro_api_version(void)
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{
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return RETRO_API_VERSION;
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}
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void libretro_dummy_retro_set_controller_port_device(unsigned port, unsigned device)
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{
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(void)port;
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(void)device;
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}
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void libretro_dummy_retro_get_system_info(struct retro_system_info *info)
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{
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memset(info, 0, sizeof(*info));
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info->library_name = "No Core";
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info->library_version = "";
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info->need_fullpath = false;
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info->valid_extensions = ""; // Nothing.
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}
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// Doesn't really matter, but need something sane.
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void libretro_dummy_retro_get_system_av_info(struct retro_system_av_info *info)
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{
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info->timing.fps = 60.0;
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info->timing.sample_rate = 30000.0;
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info->geometry.base_width = 320;
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info->geometry.base_height = 240;
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info->geometry.max_width = 320;
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info->geometry.max_height = 240;
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info->geometry.aspect_ratio = 4.0 / 3.0;
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}
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static retro_video_refresh_t dummy_video_cb;
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static retro_audio_sample_t dummy_audio_cb;
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static retro_audio_sample_batch_t dummy_audio_batch_cb;
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static retro_environment_t dummy_environ_cb;
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static retro_input_poll_t dummy_input_poll_cb;
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static retro_input_state_t dummy_input_state_cb;
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void libretro_dummy_retro_set_environment(retro_environment_t cb)
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{
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dummy_environ_cb = cb;
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// We know it's supported, it's internal to RetroArch.
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enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565;
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dummy_environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt);
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}
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void libretro_dummy_retro_set_audio_sample(retro_audio_sample_t cb)
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{
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dummy_audio_cb = cb;
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}
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void libretro_dummy_retro_set_audio_sample_batch(retro_audio_sample_batch_t cb)
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{
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dummy_audio_batch_cb = cb;
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}
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void libretro_dummy_retro_set_input_poll(retro_input_poll_t cb)
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{
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dummy_input_poll_cb = cb;
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}
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void libretro_dummy_retro_set_input_state(retro_input_state_t cb)
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{
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dummy_input_state_cb = cb;
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}
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void libretro_dummy_retro_set_video_refresh(retro_video_refresh_t cb)
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{
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dummy_video_cb = cb;
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}
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void libretro_dummy_retro_reset(void)
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{}
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void libretro_dummy_retro_run(void)
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{
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dummy_input_poll_cb();
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for (unsigned i = 0; i < 320 * 240; i++)
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frame_buf[i] = 4 << 5;
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dummy_video_cb(frame_buf, 320, 240, 640);
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}
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// This should never be called, it's only used as a placeholder.
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bool libretro_dummy_retro_load_game(const struct retro_game_info *info)
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{
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(void)info;
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return false;
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}
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void libretro_dummy_retro_unload_game(void)
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{}
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unsigned libretro_dummy_retro_get_region(void)
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{
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return RETRO_REGION_NTSC;
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}
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bool libretro_dummy_retro_load_game_special(unsigned type, const struct retro_game_info *info, size_t num)
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{
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(void)type;
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(void)info;
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(void)num;
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return false;
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}
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size_t libretro_dummy_retro_serialize_size(void)
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{
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return 0;
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}
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bool libretro_dummy_retro_serialize(void *data, size_t size)
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{
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(void)data;
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(void)size;
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return false;
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}
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bool libretro_dummy_retro_unserialize(const void *data, size_t size)
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{
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(void)data;
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(void)size;
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return false;
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}
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void *libretro_dummy_retro_get_memory_data(unsigned id)
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{
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(void)id;
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return NULL;
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}
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size_t libretro_dummy_retro_get_memory_size(unsigned id)
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{
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(void)id;
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return 0;
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}
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void libretro_dummy_retro_cheat_reset(void)
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{}
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void libretro_dummy_retro_cheat_set(unsigned index, bool enabled, const char *code)
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{
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(void)index;
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(void)enabled;
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(void)code;
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}
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