/* RetroArch - A frontend for libretro. * Copyright (C) 2010-2014 - Hans-Kristian Arntzen * Copyright (C) 2011-2014 - 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 . */ #ifndef __DRIVER__H #define __DRIVER__H #include #include #include "libretro_private.h" #include #include #include #include "gfx/scaler/scaler.h" #include "gfx/image/image.h" #include "gfx/filters/softfilter.h" #include "gfx/shader/shader_parse.h" #include "audio/dsp_filter.h" #include "input/overlay.h" #include "frontend/frontend_context.h" #include #include "frontend/menu/menu_driver.h" #include "frontend/menu/backend/menu_backend.h" #include "frontend/menu/disp/menu_display.h" #include "audio/resamplers/resampler.h" #include "record/ffemu.h" #include "retro.h" #ifdef HAVE_CONFIG_H #include "config.h" #endif #ifdef HAVE_COMMAND #include "command.h" #endif #ifdef __cplusplus extern "C" { #endif #define AUDIO_CHUNK_SIZE_BLOCKING 512 /* So we don't get complete line-noise when fast-forwarding audio. */ #define AUDIO_CHUNK_SIZE_NONBLOCKING 2048 #define AUDIO_MAX_RATIO 16 /* Specialized _POINTER that targets the full screen regardless of viewport. * Should not be used by a libretro implementation as coordinates returned * make no sense. * * It is only used internally for overlays. */ #define RARCH_DEVICE_POINTER_SCREEN (RETRO_DEVICE_POINTER | 0x10000) /* libretro has 16 buttons from 0-15 (libretro.h) * Analog binds use RETRO_DEVICE_ANALOG, but we follow the same scheme * internally in RetroArch for simplicity, so they are mapped into [16, 23]. */ #define RARCH_FIRST_CUSTOM_BIND 16 #define RARCH_FIRST_META_KEY RARCH_CUSTOM_BIND_LIST_END /* RetroArch specific bind IDs. */ enum { /* Custom binds that extend the scope of RETRO_DEVICE_JOYPAD for * RetroArch specifically. * Analogs (RETRO_DEVICE_ANALOG) */ RARCH_ANALOG_LEFT_X_PLUS = RARCH_FIRST_CUSTOM_BIND, RARCH_ANALOG_LEFT_X_MINUS, RARCH_ANALOG_LEFT_Y_PLUS, RARCH_ANALOG_LEFT_Y_MINUS, RARCH_ANALOG_RIGHT_X_PLUS, RARCH_ANALOG_RIGHT_X_MINUS, RARCH_ANALOG_RIGHT_Y_PLUS, RARCH_ANALOG_RIGHT_Y_MINUS, /* Turbo */ RARCH_TURBO_ENABLE, RARCH_CUSTOM_BIND_LIST_END, /* Command binds. Not related to game input, * only usable for port 0. */ RARCH_FAST_FORWARD_KEY = RARCH_FIRST_META_KEY, RARCH_FAST_FORWARD_HOLD_KEY, RARCH_LOAD_STATE_KEY, RARCH_SAVE_STATE_KEY, RARCH_FULLSCREEN_TOGGLE_KEY, RARCH_QUIT_KEY, RARCH_STATE_SLOT_PLUS, RARCH_STATE_SLOT_MINUS, RARCH_REWIND, RARCH_MOVIE_RECORD_TOGGLE, RARCH_PAUSE_TOGGLE, RARCH_FRAMEADVANCE, RARCH_RESET, RARCH_SHADER_NEXT, RARCH_SHADER_PREV, RARCH_CHEAT_INDEX_PLUS, RARCH_CHEAT_INDEX_MINUS, RARCH_CHEAT_TOGGLE, RARCH_SCREENSHOT, RARCH_MUTE, RARCH_NETPLAY_FLIP, RARCH_SLOWMOTION, RARCH_ENABLE_HOTKEY, RARCH_VOLUME_UP, RARCH_VOLUME_DOWN, RARCH_OVERLAY_NEXT, RARCH_DISK_EJECT_TOGGLE, RARCH_DISK_NEXT, RARCH_DISK_PREV, RARCH_GRAB_MOUSE_TOGGLE, RARCH_MENU_TOGGLE, RARCH_BIND_LIST_END, RARCH_BIND_LIST_END_NULL }; struct retro_keybind { bool valid; unsigned id; const char *desc; enum retro_key key; /* PC only uses lower 16-bits. * Full 64-bit can be used for port-specific purposes, * like simplifying multiple binds, etc. */ uint64_t joykey; /* Default key binding value - for resetting bind to default */ uint64_t def_joykey; uint32_t joyaxis; uint32_t def_joyaxis; /* Used by input_{push,pop}_analog_dpad(). */ uint32_t orig_joyaxis; }; struct platform_bind { uint64_t joykey; char desc[64]; }; typedef struct video_info { unsigned width; unsigned height; bool fullscreen; bool vsync; bool force_aspect; #ifdef GEKKO /* TODO - we can't really have driver system-specific * variables in here. There should be some * kind of publicly accessible driver implementation * video struct for specific things like this. */ unsigned viwidth; #endif bool vfilter; bool smooth; /* Maximum input size: RARCH_SCALE_BASE * input_scale */ unsigned input_scale; /* Use 32bit RGBA rather than native XBGR1555. */ bool rgb32; } 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); /* Is the audio driver currently running? */ bool (*alive)(void *data); /* Should we care about blocking in audio thread? Fast forwarding. */ void (*set_nonblock_state)(void *data, bool toggle); void (*free)(void *data); /* Defines if driver will take standard floating point samples, * or int16_t samples. */ bool (*use_float)(void *data); const char *ident; /* Optional. */ size_t (*write_avail)(void *data); size_t (*buffer_size)(void *data); } audio_driver_t; #define AXIS_NEG(x) (((uint32_t)(x) << 16) | UINT16_C(0xFFFF)) #define AXIS_POS(x) ((uint32_t)(x) | UINT32_C(0xFFFF0000)) #define AXIS_NONE UINT32_C(0xFFFFFFFF) #define AXIS_DIR_NONE UINT16_C(0xFFFF) #define AXIS_NEG_GET(x) (((uint32_t)(x) >> 16) & UINT16_C(0xFFFF)) #define AXIS_POS_GET(x) ((uint32_t)(x) & UINT16_C(0xFFFF)) #define NO_BTN UINT16_C(0xFFFF) #define HAT_UP_SHIFT 15 #define HAT_DOWN_SHIFT 14 #define HAT_LEFT_SHIFT 13 #define HAT_RIGHT_SHIFT 12 #define HAT_UP_MASK (1 << HAT_UP_SHIFT) #define HAT_DOWN_MASK (1 << HAT_DOWN_SHIFT) #define HAT_LEFT_MASK (1 << HAT_LEFT_SHIFT) #define HAT_RIGHT_MASK (1 << HAT_RIGHT_SHIFT) #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)) enum analog_dpad_mode { ANALOG_DPAD_NONE = 0, ANALOG_DPAD_LSTICK, ANALOG_DPAD_RSTICK, ANALOG_DPAD_LAST }; typedef struct rarch_joypad_driver rarch_joypad_driver_t; typedef struct input_driver { void *(*init)(void); void (*poll)(void *data); int16_t (*input_state)(void *data, const struct retro_keybind **retro_keybinds, unsigned port, unsigned device, unsigned index, unsigned id); bool (*key_pressed)(void *data, int key); void (*free)(void *data); bool (*set_sensor_state)(void *data, unsigned port, enum retro_sensor_action action, unsigned rate); float (*get_sensor_input)(void *data, unsigned port, unsigned id); uint64_t (*get_capabilities)(void *data); const char *ident; void (*grab_mouse)(void *data, bool state); bool (*set_rumble)(void *data, unsigned port, enum retro_rumble_effect effect, uint16_t state); const rarch_joypad_driver_t *(*get_joypad_driver)(void *data); } input_driver_t; typedef struct input_osk_driver { void *(*init)(size_t size); void (*free)(void *data); bool (*enable_key_layout)(void *data); void (*oskutil_create_activation_parameters)(void *data); void (*write_msg)(void *data, const void *msg); void (*write_initial_msg)(void *data, const void *msg); bool (*start)(void *data); void (*lifecycle)(void *data, uint64_t status); void *(*get_text_buf)(void *data); const char *ident; } input_osk_driver_t; typedef struct camera_driver { /* FIXME: params for initialization - queries for resolution, * framerate, color format which might or might not be honored. */ void *(*init)(const char *device, uint64_t buffer_types, unsigned width, unsigned height); void (*free)(void *data); bool (*start)(void *data); void (*stop)(void *data); /* Polls the camera driver. * Will call the appropriate callback if a new frame is ready. * Returns true if a new frame was handled. */ bool (*poll)(void *data, retro_camera_frame_raw_framebuffer_t frame_raw_cb, retro_camera_frame_opengl_texture_t frame_gl_cb); const char *ident; } camera_driver_t; typedef struct location_driver { void *(*init)(void); void (*free)(void *data); bool (*start)(void *data); void (*stop)(void *data); bool (*get_position)(void *data, double *lat, double *lon, double *horiz_accuracy, double *vert_accuracy); void (*set_interval)(void *data, unsigned interval_msecs, unsigned interval_distance); const char *ident; } location_driver_t; struct rarch_viewport; #ifdef HAVE_OVERLAY typedef struct video_overlay_interface { void (*enable)(void *data, bool state); bool (*load)(void *data, const struct texture_image *images, unsigned num_images); void (*tex_geom)(void *data, unsigned image, float x, float y, float w, float h); void (*vertex_geom)(void *data, unsigned image, float x, float y, float w, float h); void (*full_screen)(void *data, bool enable); void (*set_alpha)(void *data, unsigned image, float mod); } video_overlay_interface_t; #endif struct font_params { float x; float y; float scale; /* Drop shadow color multiplier. */ float drop_mod; /* Drop shadow offset. * If both are 0, no drop shadow will be rendered. */ int drop_x, drop_y; /* ABGR. Use the macros. */ uint32_t color; bool full_screen; }; #define FONT_COLOR_RGBA(r, g, b, a) (((r) << 0) | ((g) << 8) | ((b) << 16) | ((a) << 24)) #define FONT_COLOR_GET_RED(col) (((col) >> 0) & 0xff) #define FONT_COLOR_GET_GREEN(col) (((col) >> 8) & 0xff) #define FONT_COLOR_GET_BLUE(col) (((col) >> 16) & 0xff) #define FONT_COLOR_GET_ALPHA(col) (((col) >> 24) & 0xff) /* Optionally implemented interface to poke more * deeply into video driver. */ typedef struct video_poke_interface { void (*set_filtering)(void *data, unsigned index, bool smooth); #ifdef HAVE_FBO uintptr_t (*get_current_framebuffer)(void *data); retro_proc_address_t (*get_proc_address)(void *data, const char *sym); #endif void (*set_aspect_ratio)(void *data, unsigned aspectratio_index); void (*apply_state_changes)(void *data); #ifdef HAVE_MENU /* Update texture. */ void (*set_texture_frame)(void *data, const void *frame, bool rgb32, unsigned width, unsigned height, float alpha); /* Enable or disable rendering. */ void (*set_texture_enable)(void *data, bool enable, bool full_screen); #endif void (*set_osd_msg)(void *data, const char *msg, const struct font_params *params); void (*show_mouse)(void *data, bool state); void (*grab_mouse_toggle)(void *data); struct gfx_shader *(*get_current_shader)(void *data); } video_poke_interface_t; typedef struct video_driver { /* Should the video driver act as an input driver as well? * The video initialization might preinitialize an input driver * to override the settings in case the video driver relies on * input driver for event handling. */ void *(*init)(const video_info_t *video, const input_driver_t **input, void **input_data); /* msg is for showing a message on the screen along with the video frame. */ bool (*frame)(void *data, const void *frame, unsigned width, unsigned height, unsigned pitch, const char *msg); /* Should we care about syncing to vblank? Fast forwarding. */ void (*set_nonblock_state)(void *data, bool toggle); /* Is the window still active? */ bool (*alive)(void *data); /* Does the window have focus? */ bool (*focus)(void *data); /* Does the graphics conext support windowed mode? */ bool (*has_windowed)(void *data); /* Sets shader. Might not be implemented. Will be moved to * poke_interface later. */ bool (*set_shader)(void *data, enum rarch_shader_type type, const char *path); void (*free)(void *data); const char *ident; void (*set_rotation)(void *data, unsigned rotation); void (*viewport_info)(void *data, struct rarch_viewport *vp); /* Reads out in BGR byte order (24bpp). */ bool (*read_viewport)(void *data, uint8_t *buffer); #ifdef HAVE_OVERLAY void (*overlay_interface)(void *data, const video_overlay_interface_t **iface); #endif void (*poke_interface)(void *data, const video_poke_interface_t **iface); unsigned (*wrap_type_to_enum)(enum gfx_wrap_type type); } video_driver_t; enum rarch_display_type { /* Non-bindable types like consoles, KMS, VideoCore, etc. */ RARCH_DISPLAY_NONE = 0, /* video_display => Display*, video_window => Window */ RARCH_DISPLAY_X11, /* video_display => N/A, video_window => HWND */ RARCH_DISPLAY_WIN32, RARCH_DISPLAY_OSX }; /* Flags for init_drivers/uninit_drivers */ enum { DRIVER_AUDIO = 1 << 0, DRIVER_VIDEO = 1 << 1, DRIVER_INPUT = 1 << 2, DRIVER_OSK = 1 << 3, DRIVER_CAMERA = 1 << 4, DRIVER_LOCATION = 1 << 5, DRIVER_MENU = 1 << 6, DRIVERS_VIDEO_INPUT = 1 << 7 /* note multiple drivers */ }; /* Drivers for RARCH_CMD_DRIVERS_DEINIT and RARCH_CMD_DRIVERS_INIT */ #define DRIVERS_CMD_ALL \ ( DRIVER_AUDIO \ | DRIVER_VIDEO \ | DRIVER_INPUT \ | DRIVER_OSK \ | DRIVER_CAMERA \ | DRIVER_LOCATION \ | DRIVER_MENU \ | DRIVERS_VIDEO_INPUT ) typedef struct driver { const frontend_ctx_driver_t *frontend_ctx; const audio_driver_t *audio; const video_driver_t *video; const input_driver_t *input; const input_osk_driver_t *osk; const camera_driver_t *camera; const location_driver_t *location; const rarch_resampler_t *resampler; const ffemu_backend_t *recording; struct retro_callbacks retro_ctx; void *audio_data; void *video_data; void *video_context_data; void *input_data; void *osk_data; void *camera_data; void *location_data; void *resampler_data; void *recording_data; #ifdef HAVE_NETPLAY void *netplay_data; #endif bool audio_active; bool video_active; bool camera_active; bool location_active; bool osk_active; #ifdef HAVE_MENU menu_handle_t *menu; const menu_ctx_driver_t *menu_ctx; #endif bool threaded_video; /* If set during context deinit, the driver should keep * graphics context alive to avoid having to reset all * context state. */ bool video_cache_context; /* Set to true by driver if context caching succeeded. */ bool video_cache_context_ack; /* Set this to true if the platform in question needs to 'own' * the respective handle and therefore skip regular RetroArch * driver teardown/reiniting procedure. * * If set to true, the 'free' function will get skipped. It is * then up to the driver implementation to properly handle * 'reiniting' inside the 'init' function and make sure it * returns the existing handle instead of allocating and * returning a pointer to a new handle. * * Typically, if a driver intends to make use of this, it should * set this to true at the end of its 'init' function. */ bool video_data_own; bool audio_data_own; bool input_data_own; bool camera_data_own; bool location_data_own; bool osk_data_own; #ifdef HAVE_MENU bool menu_data_own; #endif #ifdef HAVE_COMMAND rarch_cmd_t *command; #endif bool stdin_claimed; bool block_hotkey; bool block_input; bool block_libretro_input; bool flushing_input; bool nonblock_state; /* Opaque handles to currently running window. * Used by e.g. input drivers which bind to a window. * Drivers are responsible for setting these if an input driver * could potentially make use of this. */ uintptr_t video_display; uintptr_t video_window; enum rarch_display_type display_type; /* Used for 15-bit -> 16-bit conversions that take place before * being passed to video driver. */ struct scaler_ctx scaler; void *scaler_out; /* Graphics driver requires RGBA byte order data (ABGR on little-endian) * for 32-bit. * This takes effect for overlay and shader cores that wants to load * data into graphics driver. Kinda hackish to place it here, it is only * used for GLES. * TODO: Refactor this better. */ bool gfx_use_rgba; #ifdef HAVE_OVERLAY input_overlay_t *overlay; input_overlay_state_t overlay_state; #endif /* Interface for "poking". */ const video_poke_interface_t *video_poke; /* Last message given to the video driver */ const char *current_msg; } driver_t; void init_drivers(int flags); void init_drivers_pre(void); void uninit_drivers(int flags); void find_prev_driver(const char *label, char *str, size_t sizeof_str); void find_next_driver(const char *label, char *str, size_t sizeof_str); void find_prev_resampler_driver(void); void find_next_resampler_driver(void); void driver_set_monitor_refresh_rate(float hz); bool driver_monitor_fps_statistics(double *refresh_rate, double *deviation, unsigned *sample_points); void driver_set_nonblock_state(bool nonblock); /* Used by RETRO_ENVIRONMENT_SET_HW_RENDER. */ uintptr_t driver_get_current_framebuffer(void); retro_proc_address_t driver_get_proc_address(const char *sym); /* Used by RETRO_ENVIRONMENT_GET_RUMBLE_INTERFACE */ bool driver_set_rumble_state(unsigned port, enum retro_rumble_effect effect, uint16_t strength); /* Used by RETRO_ENVIRONMENT_GET_SENSOR_INTERFACE */ bool driver_set_sensor_state(unsigned port, enum retro_sensor_action action, unsigned rate); float driver_sensor_get_input(unsigned port, unsigned action); /* Use this if you need the real video driver and driver data pointers */ void *driver_video_resolve(const video_driver_t **drv); /* Used by RETRO_ENVIRONMENT_GET_CAMERA_INTERFACE. */ bool driver_camera_start(void); void driver_camera_stop(void); void driver_camera_poll(void); /* Used by RETRO_ENVIRONMENT_GET_LOCATION_INTERFACE. */ bool driver_location_start(void); void driver_location_stop(void); bool driver_location_get_position(double *lat, double *lon, double *horiz_accuracy, double *vert_accuracy); void driver_location_set_interval(unsigned interval_msecs, unsigned interval_distance); /* Used by RETRO_ENVIRONMENT_SET_SYSTEM_AV_INFO. */ bool driver_update_system_av_info(const struct retro_system_av_info *info); extern driver_t driver; /* Backends */ extern audio_driver_t audio_rsound; extern audio_driver_t audio_oss; extern audio_driver_t audio_alsa; extern audio_driver_t audio_alsathread; extern audio_driver_t audio_roar; extern audio_driver_t audio_openal; extern audio_driver_t audio_opensl; extern audio_driver_t audio_jack; extern audio_driver_t audio_sdl; extern audio_driver_t audio_xa; extern audio_driver_t audio_pulse; extern audio_driver_t audio_dsound; extern audio_driver_t audio_coreaudio; extern audio_driver_t audio_xenon360; extern audio_driver_t audio_ps3; extern audio_driver_t audio_gx; extern audio_driver_t audio_psp1; extern audio_driver_t audio_rwebaudio; extern audio_driver_t audio_null; extern video_driver_t video_gl; extern video_driver_t video_psp1; extern video_driver_t video_vita; extern video_driver_t video_d3d; extern video_driver_t video_gx; extern video_driver_t video_xenon360; extern video_driver_t video_xvideo; extern video_driver_t video_xdk_d3d; extern video_driver_t video_sdl; extern video_driver_t video_sdl2; extern video_driver_t video_vg; extern video_driver_t video_omap; extern video_driver_t video_exynos; extern video_driver_t video_null; extern input_driver_t input_android; extern input_driver_t input_sdl; extern input_driver_t input_dinput; extern input_driver_t input_x; extern input_driver_t input_wayland; extern input_driver_t input_ps3; extern input_driver_t input_psp; extern input_driver_t input_xenon360; extern input_driver_t input_gx; extern input_driver_t input_xinput; extern input_driver_t input_linuxraw; extern input_driver_t input_udev; extern input_driver_t input_apple; extern input_driver_t input_qnx; extern input_driver_t input_rwebinput; extern input_driver_t input_null; extern camera_driver_t camera_v4l2; extern camera_driver_t camera_android; extern camera_driver_t camera_rwebcam; extern camera_driver_t camera_ios; extern camera_driver_t camera_null; extern location_driver_t location_apple; extern location_driver_t location_android; extern location_driver_t location_null; extern input_osk_driver_t input_ps3_osk; extern input_osk_driver_t input_null_osk; extern menu_ctx_driver_t menu_ctx_rmenu; extern menu_ctx_driver_t menu_ctx_rmenu_xui; extern menu_ctx_driver_t menu_ctx_rgui; extern menu_ctx_driver_t menu_ctx_glui; extern menu_ctx_driver_t menu_ctx_xmb; extern menu_ctx_driver_t menu_ctx_lakka; extern menu_ctx_driver_backend_t menu_ctx_backend_common; extern menu_ctx_driver_backend_t menu_ctx_backend_lakka; extern rarch_joypad_driver_t *joypad_drivers[]; #define check_overlay_func(input, old_input) rarch_check_overlay(BIT64_GET(input, RARCH_OVERLAY_NEXT), BIT64_GET(old_input, RARCH_OVERLAY_NEXT)) #define check_oneshot_func(trigger_input) (check_is_oneshot(BIT64_GET(trigger_input, RARCH_FRAMEADVANCE), BIT64_GET(trigger_input, RARCH_REWIND))) #define check_slowmotion_func(input) check_slowmotion(BIT64_GET(input, RARCH_SLOWMOTION)) #define check_shader_dir_func(trigger_input) check_shader_dir(BIT64_GET(trigger_input, RARCH_SHADER_NEXT), BIT64_GET(trigger_input, RARCH_SHADER_PREV)) #define check_enter_menu_func(input) BIT64_GET(input, RARCH_MENU_TOGGLE) #define check_mute_func(input, old_input) check_mute(BIT64_GET(input, RARCH_MUTE), BIT64_GET(old_input, RARCH_MUTE)) #define check_fast_forward_button_func(input, old_input, trigger_input) check_fast_forward_button(BIT64_GET(trigger_input, RARCH_FAST_FORWARD_KEY), BIT64_GET(input, RARCH_FAST_FORWARD_HOLD_KEY), BIT64_GET(old_input, RARCH_FAST_FORWARD_HOLD_KEY)) #define check_rewind_func(input) check_rewind(BIT64_GET(input, RARCH_REWIND)) #define check_stateslots_func(trigger_input) check_stateslots(BIT64_GET(trigger_input, RARCH_STATE_SLOT_PLUS), BIT64_GET(trigger_input, RARCH_STATE_SLOT_MINUS)) #define check_pause_func(input) check_pause(BIT64_GET(input, RARCH_PAUSE_TOGGLE), BIT64_GET(input, RARCH_FRAMEADVANCE)) #define check_quit_key_func(input) BIT64_GET(input, RARCH_QUIT_KEY) #ifdef __cplusplus } #endif #endif