mirror of
https://github.com/libretro/RetroArch.git
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113 lines
2.8 KiB
C
113 lines
2.8 KiB
C
/* 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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*
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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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#ifndef __VIDEO_STATE_TRACKER_H
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#define __VIDEO_STATE_TRACKER_H
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#include <stdint.h>
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#include <boolean.h>
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#include <retro_common_api.h>
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RETRO_BEGIN_DECLS
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enum state_tracker_type
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{
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RARCH_STATE_CAPTURE = 0,
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RARCH_STATE_CAPTURE_PREV,
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RARCH_STATE_TRANSITION,
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RARCH_STATE_TRANSITION_COUNT,
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RARCH_STATE_TRANSITION_PREV,
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RARCH_STATE_PYTHON
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};
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enum state_ram_type
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{
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RARCH_STATE_NONE,
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RARCH_STATE_WRAM,
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RARCH_STATE_INPUT_SLOT1,
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RARCH_STATE_INPUT_SLOT2
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};
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struct state_tracker_uniform_info
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{
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char id[64];
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uint32_t addr;
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enum state_tracker_type type;
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enum state_ram_type ram_type;
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uint16_t mask;
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uint16_t equal;
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};
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struct state_tracker_info
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{
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const uint8_t *wram;
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const struct state_tracker_uniform_info *info;
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unsigned info_elem;
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const char *script;
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const char *script_class;
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bool script_is_file;
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};
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struct state_tracker_uniform
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{
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const char *id;
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float value;
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};
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typedef struct state_tracker state_tracker_t;
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/**
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* state_tracker_init:
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* @info : State tracker info handle.
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*
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* Creates and initializes graphics state tracker.
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*
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* Returns: new state tracker handle if successful, otherwise NULL.
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**/
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state_tracker_t* state_tracker_init(const struct state_tracker_info *info);
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/**
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* state_tracker_free:
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* @tracker : State tracker handle.
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*
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* Frees a state tracker handle.
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**/
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void state_tracker_free(state_tracker_t *tracker);
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/**
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* state_tracker_get_uniform:
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* @tracker : State tracker handle.
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* @uniforms : State tracker uniforms.
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* @elem : Amount of uniform elements.
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* @frame_count : Frame count.
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*
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* Calls update_input(), and updates each uniform
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* element accordingly.
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*
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* Returns: Amount of state elements (either equal to @elem
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* or equal to @tracker->info_eleme).
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**/
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unsigned state_tracker_get_uniform(state_tracker_t *tracker,
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struct state_tracker_uniform *uniforms,
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unsigned elem, unsigned frame_count);
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RETRO_END_DECLS
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#endif
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