+++ /dev/null
-#ifndef LIBRETRO_H__
-#define LIBRETRO_H__
-
-#include <stdint.h>
-#include <stddef.h>
-#include <limits.h>
-
-// Hack applied for MSVC when compiling in C89 mode as it isn't C99 compliant.
-#ifdef __cplusplus
-extern "C" {
-#else
-#if defined(_MSC_VER) && !defined(SN_TARGET_PS3) && !defined(__cplusplus)
-#define bool unsigned char
-#define true 1
-#define false 0
-#else
-#include <stdbool.h>
-#endif
-#endif
-
-// Used for checking API/ABI mismatches that can break libretro implementations.
-// It is not incremented for compatible changes to the API.
-#define RETRO_API_VERSION 1
-
-// Libretro's fundamental device abstractions.
-#define RETRO_DEVICE_MASK 0xff
-#define RETRO_DEVICE_NONE 0
-
-// The JOYPAD is called RetroPad. It is essentially a Super Nintendo controller,
-// but with additional L2/R2/L3/R3 buttons, similar to a PS1 DualShock.
-#define RETRO_DEVICE_JOYPAD 1
-
-// The mouse is a simple mouse, similar to Super Nintendo's mouse.
-// X and Y coordinates are reported relatively to last poll (poll callback).
-// It is up to the libretro implementation to keep track of where the mouse pointer is supposed to be on the screen.
-// The frontend must make sure not to interfere with its own hardware mouse pointer.
-#define RETRO_DEVICE_MOUSE 2
-
-// KEYBOARD device lets one poll for raw key pressed.
-// It is poll based, so input callback will return with the current pressed state.
-#define RETRO_DEVICE_KEYBOARD 3
-
-// Lightgun X/Y coordinates are reported relatively to last poll, similar to mouse.
-#define RETRO_DEVICE_LIGHTGUN 4
-
-// The ANALOG device is an extension to JOYPAD (RetroPad).
-// Similar to DualShock it adds two analog sticks.
-// This is treated as a separate device type as it returns values in the full analog range
-// of [-0x8000, 0x7fff]. Positive X axis is right. Positive Y axis is down.
-// Only use ANALOG type when polling for analog values of the axes.
-#define RETRO_DEVICE_ANALOG 5
-
-// Abstracts the concept of a pointing mechanism, e.g. touch.
-// This allows libretro to query in absolute coordinates where on the screen a mouse (or something similar) is being placed.
-// For a touch centric device, coordinates reported are the coordinates of the press.
-//
-// Coordinates in X and Y are reported as:
-// [-0x7fff, 0x7fff]: -0x7fff corresponds to the far left/top of the screen,
-// and 0x7fff corresponds to the far right/bottom of the screen.
-// The "screen" is here defined as area that is passed to the frontend and later displayed on the monitor.
-// The frontend is free to scale/resize this screen as it sees fit, however,
-// (X, Y) = (-0x7fff, -0x7fff) will correspond to the top-left pixel of the game image, etc.
-//
-// To check if the pointer coordinates are valid (e.g. a touch display actually being touched),
-// PRESSED returns 1 or 0.
-// If using a mouse, PRESSED will usually correspond to the left mouse button.
-// PRESSED will only return 1 if the pointer is inside the game screen.
-//
-// For multi-touch, the index variable can be used to successively query more presses.
-// If index = 0 returns true for _PRESSED, coordinates can be extracted
-// with _X, _Y for index = 0. One can then query _PRESSED, _X, _Y with index = 1, and so on.
-// Eventually _PRESSED will return false for an index. No further presses are registered at this point.
-#define RETRO_DEVICE_POINTER 6
-
-// These device types are specializations of the base types above.
-// They should only be used in retro_set_controller_type() to inform libretro implementations
-// about use of a very specific device type.
-//
-// In input state callback, however, only the base type should be used in the 'device' field.
-#define RETRO_DEVICE_JOYPAD_MULTITAP ((1 << 8) | RETRO_DEVICE_JOYPAD)
-#define RETRO_DEVICE_LIGHTGUN_SUPER_SCOPE ((1 << 8) | RETRO_DEVICE_LIGHTGUN)
-#define RETRO_DEVICE_LIGHTGUN_JUSTIFIER ((2 << 8) | RETRO_DEVICE_LIGHTGUN)
-#define RETRO_DEVICE_LIGHTGUN_JUSTIFIERS ((3 << 8) | RETRO_DEVICE_LIGHTGUN)
-
-// Buttons for the RetroPad (JOYPAD).
-// The placement of these is equivalent to placements on the Super Nintendo controller.
-// L2/R2/L3/R3 buttons correspond to the PS1 DualShock.
-#define RETRO_DEVICE_ID_JOYPAD_B 0
-#define RETRO_DEVICE_ID_JOYPAD_Y 1
-#define RETRO_DEVICE_ID_JOYPAD_SELECT 2
-#define RETRO_DEVICE_ID_JOYPAD_START 3
-#define RETRO_DEVICE_ID_JOYPAD_UP 4
-#define RETRO_DEVICE_ID_JOYPAD_DOWN 5
-#define RETRO_DEVICE_ID_JOYPAD_LEFT 6
-#define RETRO_DEVICE_ID_JOYPAD_RIGHT 7
-#define RETRO_DEVICE_ID_JOYPAD_A 8
-#define RETRO_DEVICE_ID_JOYPAD_X 9
-#define RETRO_DEVICE_ID_JOYPAD_L 10
-#define RETRO_DEVICE_ID_JOYPAD_R 11
-#define RETRO_DEVICE_ID_JOYPAD_L2 12
-#define RETRO_DEVICE_ID_JOYPAD_R2 13
-#define RETRO_DEVICE_ID_JOYPAD_L3 14
-#define RETRO_DEVICE_ID_JOYPAD_R3 15
-
-// Index / Id values for ANALOG device.
-#define RETRO_DEVICE_INDEX_ANALOG_LEFT 0
-#define RETRO_DEVICE_INDEX_ANALOG_RIGHT 1
-#define RETRO_DEVICE_ID_ANALOG_X 0
-#define RETRO_DEVICE_ID_ANALOG_Y 1
-
-// Id values for MOUSE.
-#define RETRO_DEVICE_ID_MOUSE_X 0
-#define RETRO_DEVICE_ID_MOUSE_Y 1
-#define RETRO_DEVICE_ID_MOUSE_LEFT 2
-#define RETRO_DEVICE_ID_MOUSE_RIGHT 3
-
-// Id values for LIGHTGUN types.
-#define RETRO_DEVICE_ID_LIGHTGUN_X 0
-#define RETRO_DEVICE_ID_LIGHTGUN_Y 1
-#define RETRO_DEVICE_ID_LIGHTGUN_TRIGGER 2
-#define RETRO_DEVICE_ID_LIGHTGUN_CURSOR 3
-#define RETRO_DEVICE_ID_LIGHTGUN_TURBO 4
-#define RETRO_DEVICE_ID_LIGHTGUN_PAUSE 5
-#define RETRO_DEVICE_ID_LIGHTGUN_START 6
-
-// Id values for POINTER.
-#define RETRO_DEVICE_ID_POINTER_X 0
-#define RETRO_DEVICE_ID_POINTER_Y 1
-#define RETRO_DEVICE_ID_POINTER_PRESSED 2
-
-// Returned from retro_get_region().
-#define RETRO_REGION_NTSC 0
-#define RETRO_REGION_PAL 1
-
-// Passed to retro_get_memory_data/size().
-// If the memory type doesn't apply to the implementation NULL/0 can be returned.
-#define RETRO_MEMORY_MASK 0xff
-
-// Regular save ram. This ram is usually found on a game cartridge, backed up by a battery.
-// If save game data is too complex for a single memory buffer,
-// the SYSTEM_DIRECTORY environment callback can be used.
-#define RETRO_MEMORY_SAVE_RAM 0
-
-// Some games have a built-in clock to keep track of time.
-// This memory is usually just a couple of bytes to keep track of time.
-#define RETRO_MEMORY_RTC 1
-
-// System ram lets a frontend peek into a game systems main RAM.
-#define RETRO_MEMORY_SYSTEM_RAM 2
-
-// Video ram lets a frontend peek into a game systems video RAM (VRAM).
-#define RETRO_MEMORY_VIDEO_RAM 3
-
-// Special memory types.
-#define RETRO_MEMORY_SNES_BSX_RAM ((1 << 8) | RETRO_MEMORY_SAVE_RAM)
-#define RETRO_MEMORY_SNES_BSX_PRAM ((2 << 8) | RETRO_MEMORY_SAVE_RAM)
-#define RETRO_MEMORY_SNES_SUFAMI_TURBO_A_RAM ((3 << 8) | RETRO_MEMORY_SAVE_RAM)
-#define RETRO_MEMORY_SNES_SUFAMI_TURBO_B_RAM ((4 << 8) | RETRO_MEMORY_SAVE_RAM)
-#define RETRO_MEMORY_SNES_GAME_BOY_RAM ((5 << 8) | RETRO_MEMORY_SAVE_RAM)
-#define RETRO_MEMORY_SNES_GAME_BOY_RTC ((6 << 8) | RETRO_MEMORY_RTC)
-
-// Special game types passed into retro_load_game_special().
-// Only used when multiple ROMs are required.
-#define RETRO_GAME_TYPE_BSX 0x101
-#define RETRO_GAME_TYPE_BSX_SLOTTED 0x102
-#define RETRO_GAME_TYPE_SUFAMI_TURBO 0x103
-#define RETRO_GAME_TYPE_SUPER_GAME_BOY 0x104
-
-// Keysyms used for ID in input state callback when polling RETRO_KEYBOARD.
-enum retro_key
-{
- RETROK_UNKNOWN = 0,
- RETROK_FIRST = 0,
- RETROK_BACKSPACE = 8,
- RETROK_TAB = 9,
- RETROK_CLEAR = 12,
- RETROK_RETURN = 13,
- RETROK_PAUSE = 19,
- RETROK_ESCAPE = 27,
- RETROK_SPACE = 32,
- RETROK_EXCLAIM = 33,
- RETROK_QUOTEDBL = 34,
- RETROK_HASH = 35,
- RETROK_DOLLAR = 36,
- RETROK_AMPERSAND = 38,
- RETROK_QUOTE = 39,
- RETROK_LEFTPAREN = 40,
- RETROK_RIGHTPAREN = 41,
- RETROK_ASTERISK = 42,
- RETROK_PLUS = 43,
- RETROK_COMMA = 44,
- RETROK_MINUS = 45,
- RETROK_PERIOD = 46,
- RETROK_SLASH = 47,
- RETROK_0 = 48,
- RETROK_1 = 49,
- RETROK_2 = 50,
- RETROK_3 = 51,
- RETROK_4 = 52,
- RETROK_5 = 53,
- RETROK_6 = 54,
- RETROK_7 = 55,
- RETROK_8 = 56,
- RETROK_9 = 57,
- RETROK_COLON = 58,
- RETROK_SEMICOLON = 59,
- RETROK_LESS = 60,
- RETROK_EQUALS = 61,
- RETROK_GREATER = 62,
- RETROK_QUESTION = 63,
- RETROK_AT = 64,
- RETROK_LEFTBRACKET = 91,
- RETROK_BACKSLASH = 92,
- RETROK_RIGHTBRACKET = 93,
- RETROK_CARET = 94,
- RETROK_UNDERSCORE = 95,
- RETROK_BACKQUOTE = 96,
- RETROK_a = 97,
- RETROK_b = 98,
- RETROK_c = 99,
- RETROK_d = 100,
- RETROK_e = 101,
- RETROK_f = 102,
- RETROK_g = 103,
- RETROK_h = 104,
- RETROK_i = 105,
- RETROK_j = 106,
- RETROK_k = 107,
- RETROK_l = 108,
- RETROK_m = 109,
- RETROK_n = 110,
- RETROK_o = 111,
- RETROK_p = 112,
- RETROK_q = 113,
- RETROK_r = 114,
- RETROK_s = 115,
- RETROK_t = 116,
- RETROK_u = 117,
- RETROK_v = 118,
- RETROK_w = 119,
- RETROK_x = 120,
- RETROK_y = 121,
- RETROK_z = 122,
- RETROK_DELETE = 127,
-
- RETROK_KP0 = 256,
- RETROK_KP1 = 257,
- RETROK_KP2 = 258,
- RETROK_KP3 = 259,
- RETROK_KP4 = 260,
- RETROK_KP5 = 261,
- RETROK_KP6 = 262,
- RETROK_KP7 = 263,
- RETROK_KP8 = 264,
- RETROK_KP9 = 265,
- RETROK_KP_PERIOD = 266,
- RETROK_KP_DIVIDE = 267,
- RETROK_KP_MULTIPLY = 268,
- RETROK_KP_MINUS = 269,
- RETROK_KP_PLUS = 270,
- RETROK_KP_ENTER = 271,
- RETROK_KP_EQUALS = 272,
-
- RETROK_UP = 273,
- RETROK_DOWN = 274,
- RETROK_RIGHT = 275,
- RETROK_LEFT = 276,
- RETROK_INSERT = 277,
- RETROK_HOME = 278,
- RETROK_END = 279,
- RETROK_PAGEUP = 280,
- RETROK_PAGEDOWN = 281,
-
- RETROK_F1 = 282,
- RETROK_F2 = 283,
- RETROK_F3 = 284,
- RETROK_F4 = 285,
- RETROK_F5 = 286,
- RETROK_F6 = 287,
- RETROK_F7 = 288,
- RETROK_F8 = 289,
- RETROK_F9 = 290,
- RETROK_F10 = 291,
- RETROK_F11 = 292,
- RETROK_F12 = 293,
- RETROK_F13 = 294,
- RETROK_F14 = 295,
- RETROK_F15 = 296,
-
- RETROK_NUMLOCK = 300,
- RETROK_CAPSLOCK = 301,
- RETROK_SCROLLOCK = 302,
- RETROK_RSHIFT = 303,
- RETROK_LSHIFT = 304,
- RETROK_RCTRL = 305,
- RETROK_LCTRL = 306,
- RETROK_RALT = 307,
- RETROK_LALT = 308,
- RETROK_RMETA = 309,
- RETROK_LMETA = 310,
- RETROK_LSUPER = 311,
- RETROK_RSUPER = 312,
- RETROK_MODE = 313,
- RETROK_COMPOSE = 314,
-
- RETROK_HELP = 315,
- RETROK_PRINT = 316,
- RETROK_SYSREQ = 317,
- RETROK_BREAK = 318,
- RETROK_MENU = 319,
- RETROK_POWER = 320,
- RETROK_EURO = 321,
- RETROK_UNDO = 322,
-
- RETROK_LAST,
-
- RETROK_DUMMY = INT_MAX // Ensure sizeof(enum) == sizeof(int)
-};
-
-enum retro_mod
-{
- RETROKMOD_NONE = 0x0000,
-
- RETROKMOD_SHIFT = 0x01,
- RETROKMOD_CTRL = 0x02,
- RETROKMOD_ALT = 0x04,
- RETROKMOD_META = 0x08,
-
- RETROKMOD_NUMLOCK = 0x10,
- RETROKMOD_CAPSLOCK = 0x20,
- RETROKMOD_SCROLLOCK = 0x40,
-
- RETROKMOD_DUMMY = INT_MAX // Ensure sizeof(enum) == sizeof(int)
-};
-
-
-// Environment commands.
-#define RETRO_ENVIRONMENT_SET_ROTATION 1 // const unsigned * --
- // Sets screen rotation of graphics.
- // Is only implemented if rotation can be accelerated by hardware.
- // Valid values are 0, 1, 2, 3, which rotates screen by 0, 90, 180, 270 degrees
- // counter-clockwise respectively.
- //
-#define RETRO_ENVIRONMENT_GET_OVERSCAN 2 // bool * --
- // Boolean value whether or not the implementation should use overscan, or crop away overscan.
- //
-#define RETRO_ENVIRONMENT_GET_CAN_DUPE 3 // bool * --
- // Boolean value whether or not frontend supports frame duping,
- // passing NULL to video frame callback.
- //
-#define RETRO_ENVIRONMENT_GET_VARIABLE 4 // struct retro_variable * --
- // Interface to aquire user-defined information from environment
- // that cannot feasibly be supported in a multi-system way.
- // Mostly used for obscure,
- // specific features that the user can tap into when neseccary.
- //
-#define RETRO_ENVIRONMENT_SET_VARIABLES 5 // const struct retro_variable * --
- // Allows an implementation to signal the environment
- // which variables it might want to check for later using GET_VARIABLE.
- // 'data' points to an array of retro_variable structs terminated by a { NULL, NULL } element.
- // retro_variable::value should contain a human readable description of the key.
- //
-#define RETRO_ENVIRONMENT_SET_MESSAGE 6 // const struct retro_message * --
- // Sets a message to be displayed in implementation-specific manner for a certain amount of 'frames'.
- // Should not be used for trivial messages, which should simply be logged to stderr.
-#define RETRO_ENVIRONMENT_SHUTDOWN 7 // N/A (NULL) --
- // Requests the frontend to shutdown.
- // Should only be used if game has a specific
- // way to shutdown the game from a menu item or similar.
- //
-#define RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL 8
- // const unsigned * --
- // Gives a hint to the frontend how demanding this implementation
- // is on a system. E.g. reporting a level of 2 means
- // this implementation should run decently on all frontends
- // of level 2 and up.
- //
- // It can be used by the frontend to potentially warn
- // about too demanding implementations.
- //
- // The levels are "floating", but roughly defined as:
- // 0: Low-powered embedded devices such as Raspberry Pi
- // 1: 6th generation consoles, such as Wii/Xbox 1, and phones, tablets, etc.
- // 2: 7th generation consoles, such as PS3/360, with sub-par CPUs.
- // 3: Modern desktop/laptops with reasonably powerful CPUs.
- // 4: High-end desktops with very powerful CPUs.
- //
- // This function can be called on a per-game basis,
- // as certain games an implementation can play might be
- // particularily demanding.
- // If called, it should be called in retro_load_game().
- //
-#define RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY 9
- // const char ** --
- // Returns the "system" directory of the frontend.
- // This directory can be used to store system specific ROMs such as BIOSes, configuration data, etc.
- // The returned value can be NULL.
- // If so, no such directory is defined,
- // and it's up to the implementation to find a suitable directory.
- //
-#define RETRO_ENVIRONMENT_SET_PIXEL_FORMAT 10
- // const enum retro_pixel_format * --
- // Sets the internal pixel format used by the implementation.
- // The default pixel format is RETRO_PIXEL_FORMAT_0RGB1555.
- // This pixel format however, is deprecated (see enum retro_pixel_format).
- // If the call returns false, the frontend does not support this pixel format.
- // This function should be called inside retro_load_game() or retro_get_system_av_info().
- //
-#define RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS 11
- // const struct retro_input_descriptor * --
- // Sets an array of retro_input_descriptors.
- // It is up to the frontend to present this in a usable way.
- // The array is terminated by retro_input_descriptor::description being set to NULL.
- // This function can be called at any time, but it is recommended to call it as early as possible.
-#define RETRO_ENVIRONMENT_SET_KEYBOARD_CALLBACK 12
- // const struct retro_keyboard_callback * --
- // Sets a callback function used to notify core about keyboard events.
- //
-#define RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE 13
- // const struct retro_disk_control_callback * --
- // Sets an interface which frontend can use to eject and insert disk images.
- // This is used for games which consist of multiple images and must be manually
- // swapped out by the user (e.g. PSX).
-
-
-// Callback type passed in RETRO_ENVIRONMENT_SET_KEYBOARD_CALLBACK. Called by the frontend in response to keyboard events.
-// down is set if the key is being pressed, or false if it is being released.
-// keycode is the RETROK value of the char.
-// character is the text character of the pressed key. (UTF-32).
-// key_modifiers is a set of RETROKMOD values or'ed together.
-typedef void (*retro_keyboard_event_t)(bool down, unsigned keycode, uint32_t character, uint16_t key_modifiers);
-
-struct retro_keyboard_callback
-{
- retro_keyboard_event_t callback;
-};
-
-// Callbacks for RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE.
-// Should be set for implementations which can swap out multiple disk images in runtime.
-// If the implementation can do this automatically, it should strive to do so.
-// However, there are cases where the user must manually do so.
-//
-// Overview: To swap a disk image, eject the disk image with set_eject_state(true).
-// Set the disk index with set_image_index(index). Insert the disk again with set_eject_state(false).
-
-// If ejected is true, "ejects" the virtual disk tray.
-// When ejected, the disk image index can be set.
-typedef bool (*retro_set_eject_state_t)(bool ejected);
-// Gets current eject state. The initial state is 'not ejected'.
-typedef bool (*retro_get_eject_state_t)(void);
-// Gets current disk index. First disk is index 0.
-// If return value is >= get_num_images(), no disk is currently inserted.
-typedef unsigned (*retro_get_image_index_t)(void);
-// Sets image index. Can only be called when disk is ejected.
-// The implementation supports setting "no disk" by using an index >= get_num_images().
-typedef bool (*retro_set_image_index_t)(unsigned index);
-// Gets total number of images which are available to use.
-typedef unsigned (*retro_get_num_images_t)(void);
-//
-// Replaces the disk image associated with index.
-// Arguments to pass in info have same requirements as retro_load_game().
-// Virtual disk tray must be ejected when calling this.
-// Replacing a disk image with info = NULL will remove the disk image from the internal list.
-// As a result, calls to get_image_index() can change.
-//
-// E.g. replace_image_index(1, NULL), and previous get_image_index() returned 4 before.
-// Index 1 will be removed, and the new index is 3.
-struct retro_game_info;
-typedef bool (*retro_replace_image_index_t)(unsigned index, const struct retro_game_info *info);
-// Adds a new valid index (get_num_images()) to the internal disk list.
-// This will increment subsequent return values from get_num_images() by 1.
-// This image index cannot be used until a disk image has been set with replace_image_index.
-typedef bool (*retro_add_image_index_t)(void);
-
-struct retro_disk_control_callback
-{
- retro_set_eject_state_t set_eject_state;
- retro_get_eject_state_t get_eject_state;
-
- retro_get_image_index_t get_image_index;
- retro_set_image_index_t set_image_index;
- retro_get_num_images_t get_num_images;
-
- retro_replace_image_index_t replace_image_index;
- retro_add_image_index_t add_image_index;
-};
-
-enum retro_pixel_format
-{
- // 0RGB1555, native endian. 0 bit must be set to 0.
- // This pixel format is default for compatibility concerns only.
- // If a 15/16-bit pixel format is desired, consider using RGB565.
- RETRO_PIXEL_FORMAT_0RGB1555 = 0,
-
- // XRGB8888, native endian. X bits are ignored.
- RETRO_PIXEL_FORMAT_XRGB8888 = 1,
-
- // RGB565, native endian. This pixel format is the recommended format to use if a 15/16-bit format is desired
- // as it is the pixel format that is typically available on a wide range of low-power devices.
- // It is also natively supported in APIs like OpenGL ES.
- RETRO_PIXEL_FORMAT_RGB565 = 2,
-
- // Ensure sizeof() == sizeof(int).
- RETRO_PIXEL_FORMAT_UNKNOWN = INT_MAX
-};
-
-struct retro_message
-{
- const char *msg; // Message to be displayed.
- unsigned frames; // Duration in frames of message.
-};
-
-// Describes how the libretro implementation maps a libretro input bind
-// to its internal input system through a human readable string.
-// This string can be used to better let a user configure input.
-struct retro_input_descriptor
-{
- // Associates given parameters with a description.
- unsigned port;
- unsigned device;
- unsigned index;
- unsigned id;
-
- const char *description; // Human readable description for parameters.
- // The pointer must remain valid until retro_unload_game() is called.
-};
-
-struct retro_system_info
-{
- // All pointers are owned by libretro implementation, and pointers must remain valid until retro_deinit() is called.
-
- const char *library_name; // Descriptive name of library. Should not contain any version numbers, etc.
- const char *library_version; // Descriptive version of core.
-
- const char *valid_extensions; // A string listing probably rom extensions the core will be able to load, separated with pipe.
- // I.e. "bin|rom|iso".
- // Typically used for a GUI to filter out extensions.
-
- bool need_fullpath; // If true, retro_load_game() is guaranteed to provide a valid pathname in retro_game_info::path.
- // ::data and ::size are both invalid.
- // If false, ::data and ::size are guaranteed to be valid, but ::path might not be valid.
- // This is typically set to true for libretro implementations that must load from file.
- // Implementations should strive for setting this to false, as it allows the frontend to perform patching, etc.
-
- bool block_extract; // If true, the frontend is not allowed to extract any archives before loading the real ROM.
- // Necessary for certain libretro implementations that load games from zipped archives.
-};
-
-struct retro_game_geometry
-{
- unsigned base_width; // Nominal video width of game.
- unsigned base_height; // Nominal video height of game.
- unsigned max_width; // Maximum possible width of game.
- unsigned max_height; // Maximum possible height of game.
-
- float aspect_ratio; // Nominal aspect ratio of game. If aspect_ratio is <= 0.0,
- // an aspect ratio of base_width / base_height is assumed.
- // A frontend could override this setting if desired.
-};
-
-struct retro_system_timing
-{
- double fps; // FPS of video content.
- double sample_rate; // Sampling rate of audio.
-};
-
-struct retro_system_av_info
-{
- struct retro_game_geometry geometry;
- struct retro_system_timing timing;
-};
-
-struct retro_variable
-{
- const char *key; // Variable to query in RETRO_ENVIRONMENT_GET_VARIABLE.
- // If NULL, obtains the complete environment string if more complex parsing is necessary.
- // The environment string is formatted as key-value pairs delimited by semicolons as so:
- // "key1=value1;key2=value2;..."
- const char *value; // Value to be obtained. If key does not exist, it is set to NULL.
-};
-
-struct retro_game_info
-{
- const char *path; // Path to game, UTF-8 encoded. Usually used as a reference.
- // May be NULL if rom was loaded from stdin or similar.
- // retro_system_info::need_fullpath guaranteed that this path is valid.
- const void *data; // Memory buffer of loaded game. Will be NULL if need_fullpath was set.
- size_t size; // Size of memory buffer.
- const char *meta; // String of implementation specific meta-data.
-};
-
-// Callbacks
-//
-// Environment callback. Gives implementations a way of performing uncommon tasks. Extensible.
-typedef bool (*retro_environment_t)(unsigned cmd, void *data);
-
-// Render a frame. Pixel format is 15-bit 0RGB1555 native endian unless changed (see RETRO_ENVIRONMENT_SET_PIXEL_FORMAT).
-// Width and height specify dimensions of buffer.
-// Pitch specifices length in bytes between two lines in buffer.
-// For performance reasons, it is highly recommended to have a frame that is packed in memory, i.e. pitch == width * byte_per_pixel.
-// Certain graphic APIs, such as OpenGL ES, do not like textures that are not packed in memory.
-typedef void (*retro_video_refresh_t)(const void *data, unsigned width, unsigned height, size_t pitch);
-
-// Renders a single audio frame. Should only be used if implementation generates a single sample at a time.
-// Format is signed 16-bit native endian.
-typedef void (*retro_audio_sample_t)(int16_t left, int16_t right);
-// Renders multiple audio frames in one go. One frame is defined as a sample of left and right channels, interleaved.
-// I.e. int16_t buf[4] = { l, r, l, r }; would be 2 frames.
-// Only one of the audio callbacks must ever be used.
-typedef size_t (*retro_audio_sample_batch_t)(const int16_t *data, size_t frames);
-
-// Polls input.
-typedef void (*retro_input_poll_t)(void);
-// Queries for input for player 'port'. device will be masked with RETRO_DEVICE_MASK.
-// Specialization of devices such as RETRO_DEVICE_JOYPAD_MULTITAP that have been set with retro_set_controller_port_device()
-// will still use the higher level RETRO_DEVICE_JOYPAD to request input.
-typedef int16_t (*retro_input_state_t)(unsigned port, unsigned device, unsigned index, unsigned id);
-
-// Sets callbacks. retro_set_environment() is guaranteed to be called before retro_init().
-// The rest of the set_* functions are guaranteed to have been called before the first call to retro_run() is made.
-void retro_set_environment(retro_environment_t);
-void retro_set_video_refresh(retro_video_refresh_t);
-void retro_set_audio_sample(retro_audio_sample_t);
-void retro_set_audio_sample_batch(retro_audio_sample_batch_t);
-void retro_set_input_poll(retro_input_poll_t);
-void retro_set_input_state(retro_input_state_t);
-
-// Library global initialization/deinitialization.
-void retro_init(void);
-void retro_deinit(void);
-
-// Must return RETRO_API_VERSION. Used to validate ABI compatibility when the API is revised.
-unsigned retro_api_version(void);
-
-// Gets statically known system info. Pointers provided in *info must be statically allocated.
-// Can be called at any time, even before retro_init().
-void retro_get_system_info(struct retro_system_info *info);
-
-// Gets information about system audio/video timings and geometry.
-// Can be called only after retro_load_game() has successfully completed.
-// NOTE: The implementation of this function might not initialize every variable if needed.
-// E.g. geom.aspect_ratio might not be initialized if core doesn't desire a particular aspect ratio.
-void retro_get_system_av_info(struct retro_system_av_info *info);
-
-// Sets device to be used for player 'port'.
-void retro_set_controller_port_device(unsigned port, unsigned device);
-
-// Resets the current game.
-void retro_reset(void);
-
-// Runs the game for one video frame.
-// During retro_run(), input_poll callback must be called at least once.
-//
-// If a frame is not rendered for reasons where a game "dropped" a frame,
-// this still counts as a frame, and retro_run() should explicitly dupe a frame if GET_CAN_DUPE returns true.
-// In this case, the video callback can take a NULL argument for data.
-void retro_run(void);
-
-// Returns the amount of data the implementation requires to serialize internal state (save states).
-// Beetween calls to retro_load_game() and retro_unload_game(), the returned size is never allowed to be larger than a previous returned value, to
-// ensure that the frontend can allocate a save state buffer once.
-size_t retro_serialize_size(void);
-
-// Serializes internal state. If failed, or size is lower than retro_serialize_size(), it should return false, true otherwise.
-bool retro_serialize(void *data, size_t size);
-bool retro_unserialize(const void *data, size_t size);
-
-void retro_cheat_reset(void);
-void retro_cheat_set(unsigned index, bool enabled, const char *code);
-
-// Loads a game.
-bool retro_load_game(const struct retro_game_info *game);
-
-// Loads a "special" kind of game. Should not be used except in extreme cases.
-bool retro_load_game_special(
- unsigned game_type,
- const struct retro_game_info *info, size_t num_info
-);
-
-// Unloads a currently loaded game.
-void retro_unload_game(void);
-
-// Gets region of game.
-unsigned retro_get_region(void);
-
-// Gets region of memory.
-void *retro_get_memory_data(unsigned id);
-size_t retro_get_memory_size(unsigned id);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
notaz.gp2x.de / pcsx_rearmed.git / blobdiff