RetroArch/runahead.h

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2023 - Daniel De Matteis
*
* RetroArch 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 Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch 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 RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __RUNAHEAD_H
#define __RUNAHEAD_H
#include <stdint.h>
#include <boolean.h>
#include <retro_common_api.h>
#include "core.h"
#define MAX_RUNAHEAD_FRAMES 12
typedef void *(*constructor_t)(void);
typedef void (*destructor_t )(void*);
typedef struct my_list_t
{
void **data;
constructor_t constructor;
destructor_t destructor;
int capacity;
int size;
} my_list;
typedef struct preemptive_frames_data
{
/* Savestate buffer */
void* buffer[MAX_RUNAHEAD_FRAMES];
size_t state_size;
/* Frame count since buffer init/reset */
uint64_t frame_count;
/* Mask of analog states requested */
uint32_t analog_mask[MAX_USERS];
/* Input states. Replays triggered on changes */
int16_t joypad_state[MAX_USERS];
int16_t analog_state[MAX_USERS][20];
int16_t ptrdev_state[MAX_USERS][4];
/* Pointing device requested */
uint8_t ptr_dev[MAX_USERS];
/* Buffer indexes for replays */
uint8_t start_ptr;
uint8_t replay_ptr;
/* Number of latency frames to remove */
uint8_t frames;
} preempt_t;
RETRO_BEGIN_DECLS
typedef bool(*runahead_load_state_function)(const void*, size_t);
void runahead_run(
void *data,
int runahead_count,
bool runahead_hide_warnings,
bool use_secondary);
void runahead_clear_variables(void *data);
void runahead_remember_controller_port_device(void *data,
long port, long device);
void runahead_clear_controller_port_map(void *data);
void runahead_set_load_content_info(
void *data,
const retro_ctx_load_content_info_t *ctx);
void runahead_secondary_core_destroy(void *data);
bool preempt_init(void *data);
void preempt_deinit(void *data);
void preempt_run(preempt_t *preempt, void *data);
RETRO_END_DECLS
#endif