video_state_tracker.h

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/* RetroArch - A frontend for libretro.
 * Copyright (C) 2010-2014 - Hans-Kristian Arntzen
 * Copyright (C) 2011-2017 - 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 __VIDEO_STATE_TRACKER_H
#define __VIDEO_STATE_TRACKER_H

#include <stdint.h>

#include <boolean.h>
#include <retro_common_api.h>

RETRO_BEGIN_DECLS

enum state_tracker_type
{
 RARCH_STATE_CAPTURE = 0,
 RARCH_STATE_CAPTURE_PREV,
 RARCH_STATE_TRANSITION,
 RARCH_STATE_TRANSITION_COUNT,
 RARCH_STATE_TRANSITION_PREV,
 RARCH_STATE_PYTHON
};

enum state_ram_type
{
 RARCH_STATE_NONE,
 RARCH_STATE_WRAM,
 RARCH_STATE_INPUT_SLOT1,
 RARCH_STATE_INPUT_SLOT2
};

struct state_tracker_uniform_info
{
 enum state_tracker_type type;
 enum state_ram_type ram_type;
 char id[64];
 uint16_t mask;
 uint16_t equal;
 uint32_t addr;
};

struct state_tracker_info
{
 const char *script;
 const char *script_class;
 bool script_is_file;
 const uint8_t *wram;
 unsigned info_elem;
 const struct state_tracker_uniform_info *info;
};

struct state_tracker_uniform
{
 const char *id;
 float value;
};

typedef struct state_tracker state_tracker_t;

state_tracker_t* state_tracker_init(const struct state_tracker_info *info);

void state_tracker_free(state_tracker_t *tracker);

unsigned state_tracker_get_uniform(state_tracker_t *tracker,
 struct state_tracker_uniform *uniforms,
 unsigned elem, unsigned frame_count);

void state_tracker_update_input(uint16_t *input1, uint16_t *input2);

RETRO_END_DECLS

#endif