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88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
/* SSNES - A Super Ninteno Entertainment System (SNES) Emulator frontend for libsnes.
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* Copyright (C) 2010 - Hans-Kristian Arntzen
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*
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* Some code herein may be based on code found in BSNES.
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*
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* SSNES 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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* SSNES 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 SSNES.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __DRIVER__H
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#define __DRIVER__H
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#include <stdbool.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <unistd.h>
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#define SNES_FAST_FORWARD_KEY 0x666 // Hurr, durr
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void set_fast_forward_button(bool state);
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struct snes_keybind
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{
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int id;
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int key;
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int joykey;
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int joyaxis;
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};
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typedef struct video_info
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{
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int width;
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int height;
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bool fullscreen;
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bool vsync;
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bool force_aspect;
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bool smooth;
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int input_scale; // HQ2X => 2, HQ4X => 4, None => 1
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} video_info_t;
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typedef struct audio_driver
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{
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void* (*init)(const char* device, int rate, int latency);
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ssize_t (*write)(void* data, const void* buf, size_t size);
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bool (*stop)(void* data);
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bool (*start)(void* data);
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void (*set_nonblock_state)(void* data, bool toggle); // Should we care about blocking in audio thread? Fast forwarding.
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void (*free)(void* data);
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} audio_driver_t;
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typedef struct input_driver
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{
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void* (*init)(void);
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void (*poll)(void* data);
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int16_t (*input_state)(void* data, const struct snes_keybind **snes_keybinds, bool port, unsigned device, unsigned index, unsigned id);
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void (*free)(void* data);
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} input_driver_t;
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typedef struct video_driver
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{
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void* (*init)(video_info_t *video, const input_driver_t **input);
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// Should the video driver act as an input driver as well? :)
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bool (*frame)(void* data, const uint16_t* frame, int width, int height, int pitch);
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void (*set_nonblock_state)(void* data, bool toggle); // Should we care about syncing to vblank? Fast forwarding.
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void (*free)(void* data);
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} video_driver_t;
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typedef struct driver
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{
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const audio_driver_t *audio;
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const video_driver_t *video;
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const input_driver_t *input;
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void *audio_data;
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void *video_data;
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void *input_data;
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} driver_t;
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#endif
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