RetroArch/dynamic.h

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/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2017 - Daniel De Matteis
*
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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-
* ation, either version 3 of the License, or (at your option) any later version.
*
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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
* PURPOSE. See the GNU General Public License for more details.
*
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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/>.
*/
#ifndef __DYNAMIC_H
#define __DYNAMIC_H
#include <boolean.h>
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#include <retro_common_api.h>
#include <libretro.h>
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#include "core_type.h"
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RETRO_BEGIN_DECLS
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/**
* libretro_get_system_info:
* @path : Path to libretro library.
* @info : System info information.
* @load_no_content : If true, core should be able to auto-start
* without any content loaded.
*
* Gets system info from an arbitrary lib.
* The struct returned must be freed as strings are allocated dynamically.
*
* Returns: true (1) if successful, otherwise false (0).
**/
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bool libretro_get_system_info(const char *path,
struct retro_system_info *info, bool *load_no_content);
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/**
* libretro_free_system_info:
* @info : Pointer to system info information.
*
* Frees system information.
**/
void libretro_free_system_info(struct retro_system_info *info);
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const struct retro_subsystem_info *libretro_find_subsystem_info(
const struct retro_subsystem_info *info,
unsigned num_info, const char *ident);
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/**
* libretro_find_controller_description:
* @info : Pointer to controller info handle.
* @id : Identifier of controller to search
* for.
*
* Search for a controller of type @id in @info.
*
* Returns: controller description of found controller on success,
* otherwise NULL.
**/
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const struct retro_controller_description *
libretro_find_controller_description(
const struct retro_controller_info *info, unsigned id);
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/**
* rarch_environment_cb:
* @cmd : Identifier of command.
* @data : Pointer to data.
*
* Environment callback function implementation.
*
* Returns: true (1) if environment callback command could
* be performed, otherwise false (0).
**/
bool rarch_environment_cb(unsigned cmd, void *data);
struct retro_core_t
{
void (*retro_init)(void);
void (*retro_deinit)(void);
unsigned (*retro_api_version)(void);
void (*retro_get_system_info)(struct retro_system_info*);
void (*retro_get_system_av_info)(struct retro_system_av_info*);
void (*retro_set_environment)(retro_environment_t);
void (*retro_set_video_refresh)(retro_video_refresh_t);
void (*retro_set_audio_sample)(retro_audio_sample_t);
void (*retro_set_audio_sample_batch)(retro_audio_sample_batch_t);
void (*retro_set_input_poll)(retro_input_poll_t);
void (*retro_set_input_state)(retro_input_state_t);
void (*retro_set_controller_port_device)(unsigned, unsigned);
void (*retro_reset)(void);
void (*retro_run)(void);
size_t (*retro_serialize_size)(void);
bool (*retro_serialize)(void*, size_t);
bool (*retro_unserialize)(const void*, size_t);
void (*retro_cheat_reset)(void);
void (*retro_cheat_set)(unsigned, bool, const char*);
bool (*retro_load_game)(const struct retro_game_info*);
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bool (*retro_load_game_special)(unsigned,
const struct retro_game_info*, size_t);
void (*retro_unload_game)(void);
unsigned (*retro_get_region)(void);
void *(*retro_get_memory_data)(unsigned);
size_t (*retro_get_memory_size)(unsigned);
unsigned poll_type;
bool inited;
bool symbols_inited;
bool game_loaded;
bool input_polled;
bool has_set_input_descriptors;
uint64_t serialization_quirks_v;
};
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bool libretro_get_shared_context(void);
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/**
* init_libretro_sym:
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* @type : Type of core to be loaded.
* If CORE_TYPE_DUMMY, will
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* load dummy symbols.
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*
* Initializes libretro symbols and
* setups environment callback functions. Returns true on success,
* or false if symbols could not be loaded.
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**/
bool init_libretro_sym(enum rarch_core_type type,
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struct retro_core_t *core);
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bool init_libretro_sym_custom(enum rarch_core_type type, struct retro_core_t *current_core, const char *lib_path, void *lib_handle_p);
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/**
* uninit_libretro_sym:
*
* Frees libretro core.
*
* Frees all core options,
* associated state, and
* unbind all libretro callback symbols.
**/
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void uninit_libretro_sym(struct retro_core_t *core);
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/* Arbitrary twenty subsystems limite */
#define SUBSYSTEM_MAX_SUBSYSTEMS 20
/* Arbitrary 10 roms for each subsystem limit */
#define SUBSYSTEM_MAX_SUBSYSTEM_ROMS 10
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extern struct retro_subsystem_info subsystem_data[SUBSYSTEM_MAX_SUBSYSTEMS];
extern struct retro_subsystem_rom_info subsystem_data_roms[SUBSYSTEM_MAX_SUBSYSTEMS][SUBSYSTEM_MAX_SUBSYSTEM_ROMS];
extern unsigned subsystem_current_count;
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RETRO_END_DECLS
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#endif