mirror of
https://github.com/libretro/RetroArch.git
synced 2024-12-12 02:44:00 +00:00
175 lines
5.6 KiB
C
175 lines
5.6 KiB
C
/* SSNES - A Super Nintendo Entertainment System (SNES) Emulator frontend for libsnes.
|
|
* Copyright (C) 2010-2011 - Hans-Kristian Arntzen
|
|
*
|
|
* Some code herein may be based on code found in BSNES.
|
|
*
|
|
* SSNES 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.
|
|
*
|
|
* SSNES 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 SSNES.
|
|
* If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
|
|
#ifndef __DRIVER__H
|
|
#define __DRIVER__H
|
|
|
|
#include <sys/types.h>
|
|
#include <stdbool.h>
|
|
#include <stdlib.h>
|
|
#include <stdint.h>
|
|
#include <unistd.h>
|
|
#include "input/keysym.h"
|
|
|
|
enum
|
|
{
|
|
SSNES_FAST_FORWARD_KEY = 12, // SNES has 12 buttons from 0-11 (libsnes.hpp)
|
|
SSNES_FAST_FORWARD_HOLD_KEY,
|
|
SSNES_LOAD_STATE_KEY,
|
|
SSNES_SAVE_STATE_KEY,
|
|
SSNES_FULLSCREEN_TOGGLE_KEY,
|
|
SSNES_QUIT_KEY,
|
|
SSNES_STATE_SLOT_PLUS,
|
|
SSNES_STATE_SLOT_MINUS,
|
|
SSNES_AUDIO_INPUT_RATE_PLUS,
|
|
SSNES_AUDIO_INPUT_RATE_MINUS,
|
|
SSNES_REWIND,
|
|
SSNES_MOVIE_RECORD_TOGGLE,
|
|
SSNES_PAUSE_TOGGLE,
|
|
SSNES_RESET,
|
|
SSNES_SHADER_NEXT,
|
|
SSNES_SHADER_PREV,
|
|
SSNES_CHEAT_INDEX_PLUS,
|
|
SSNES_CHEAT_INDEX_MINUS,
|
|
SSNES_CHEAT_TOGGLE,
|
|
SSNES_SCREENSHOT,
|
|
SSNES_DSP_CONFIG,
|
|
|
|
SSNES_BIND_LIST_END
|
|
};
|
|
|
|
|
|
struct snes_keybind
|
|
{
|
|
int id;
|
|
enum ssnes_key key;
|
|
uint16_t joykey;
|
|
uint32_t joyaxis;
|
|
};
|
|
|
|
typedef struct video_info
|
|
{
|
|
unsigned width;
|
|
unsigned height;
|
|
bool fullscreen;
|
|
bool vsync;
|
|
bool force_aspect;
|
|
bool smooth;
|
|
int input_scale; // HQ2X => 2, HQ4X => 4, None => 1
|
|
bool rgb32; // Use 32-bit RGBA rather than native XBGR1555.
|
|
} video_info_t;
|
|
|
|
typedef struct audio_driver
|
|
{
|
|
void* (*init)(const char* device, unsigned rate, unsigned latency);
|
|
ssize_t (*write)(void* data, const void* buf, size_t size);
|
|
bool (*stop)(void* data);
|
|
bool (*start)(void* data);
|
|
void (*set_nonblock_state)(void* data, bool toggle); // Should we care about blocking in audio thread? Fast forwarding.
|
|
void (*free)(void* data);
|
|
bool (*use_float)(void *data); // Defines if driver will take standard floating point samples, or int16_t samples.
|
|
const char *ident;
|
|
} audio_driver_t;
|
|
|
|
#define AXIS_NEG(x) (((uint32_t)(x) << 16) | 0xFFFFU)
|
|
#define AXIS_POS(x) ((uint32_t)(x) | 0xFFFF0000U)
|
|
#define AXIS_NONE (0xFFFFFFFFU)
|
|
|
|
#define AXIS_NEG_GET(x) (((uint32_t)(x) >> 16) & 0xFFFFU)
|
|
#define AXIS_POS_GET(x) ((uint32_t)(x) & 0xFFFFU)
|
|
|
|
#define NO_BTN ((uint16_t)0xFFFFU) // I hope no joypad will ever have this many buttons ... ;)
|
|
|
|
#define HAT_UP_MASK (1 << 15)
|
|
#define HAT_DOWN_MASK (1 << 14)
|
|
#define HAT_LEFT_MASK (1 << 13)
|
|
#define HAT_RIGHT_MASK (1 << 12)
|
|
#define HAT_MAP(x, hat) ((x & ((1 << 12) - 1)) | hat)
|
|
|
|
#define HAT_MASK (HAT_UP_MASK | HAT_DOWN_MASK | HAT_LEFT_MASK | HAT_RIGHT_MASK)
|
|
#define GET_HAT_DIR(x) (x & HAT_MASK)
|
|
#define GET_HAT(x) (x & (~HAT_MASK))
|
|
|
|
typedef struct input_driver
|
|
{
|
|
void* (*init)(void);
|
|
void (*poll)(void* data);
|
|
int16_t (*input_state)(void* data, const struct snes_keybind **snes_keybinds, bool port, unsigned device, unsigned index, unsigned id);
|
|
bool (*key_pressed)(void* data, int key);
|
|
void (*free)(void* data);
|
|
const char *ident;
|
|
} input_driver_t;
|
|
|
|
typedef struct video_driver
|
|
{
|
|
void* (*init)(const video_info_t *video, const input_driver_t **input, void **input_data);
|
|
// Should the video driver act as an input driver as well? :) The video init might preinitialize an input driver to override the settings in case the video driver relies on input driver for event handling, e.g.
|
|
bool (*frame)(void* data, const void* frame, unsigned width, unsigned height, unsigned pitch, const char *msg); // msg is for showing a message on the screen along with the video frame.
|
|
void (*set_nonblock_state)(void* data, bool toggle); // Should we care about syncing to vblank? Fast forwarding.
|
|
// Is the window still active?
|
|
bool (*alive)(void *data);
|
|
bool (*focus)(void *data); // Does the window have focus?
|
|
bool (*xml_shader)(void *data, const char *path); // Sets XML-shader. Might not be implemented.
|
|
void (*free)(void* data);
|
|
const char *ident;
|
|
} video_driver_t;
|
|
|
|
|
|
typedef struct driver
|
|
{
|
|
const audio_driver_t *audio;
|
|
const video_driver_t *video;
|
|
const input_driver_t *input;
|
|
void *audio_data;
|
|
void *video_data;
|
|
void *input_data;
|
|
} driver_t;
|
|
|
|
void init_drivers(void);
|
|
void uninit_drivers(void);
|
|
|
|
void init_video_input(void);
|
|
void uninit_video_input(void);
|
|
void init_audio(void);
|
|
void uninit_audio(void);
|
|
|
|
extern driver_t driver;
|
|
|
|
//////////////////////////////////////////////// Backends
|
|
extern const audio_driver_t audio_rsound;
|
|
extern const audio_driver_t audio_oss;
|
|
extern const audio_driver_t audio_alsa;
|
|
extern const audio_driver_t audio_roar;
|
|
extern const audio_driver_t audio_openal;
|
|
extern const audio_driver_t audio_jack;
|
|
extern const audio_driver_t audio_sdl;
|
|
extern const audio_driver_t audio_xa;
|
|
extern const audio_driver_t audio_pulse;
|
|
extern const audio_driver_t audio_ext;
|
|
extern const audio_driver_t audio_dsound;
|
|
extern const audio_driver_t audio_coreaudio;
|
|
extern const video_driver_t video_gl;
|
|
extern const video_driver_t video_xvideo;
|
|
extern const video_driver_t video_sdl;
|
|
extern const video_driver_t video_ext;
|
|
extern const input_driver_t input_sdl;
|
|
extern const input_driver_t input_x;
|
|
////////////////////////////////////////////////
|
|
|
|
#endif
|