2020-10-10 17:14:10 +00:00
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/* Copyright (C) 2010-2018 The RetroArch team
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2017-04-20 19:03:52 +00:00
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*
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* ---------------------------------------------------------------------------------------
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* The following license statement only applies to this libretro API header (libretro.h).
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* ---------------------------------------------------------------------------------------
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*
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* Permission is hereby granted, free of charge,
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* to any person obtaining a copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef LIBRETRO_H__
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#define LIBRETRO_H__
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#include <stdint.h>
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#include <stddef.h>
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#include <limits.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef __cplusplus
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#if defined(_MSC_VER) && _MSC_VER < 1800 && !defined(SN_TARGET_PS3)
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2017-04-20 19:03:52 +00:00
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/* Hack applied for MSVC when compiling in C89 mode
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* as it isn't C99-compliant. */
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#define bool unsigned char
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#define true 1
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#define false 0
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#else
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#include <stdbool.h>
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#endif
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#endif
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#ifndef RETRO_CALLCONV
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# if defined(__GNUC__) && defined(__i386__) && !defined(__x86_64__)
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# define RETRO_CALLCONV __attribute__((cdecl))
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# elif defined(_MSC_VER) && defined(_M_X86) && !defined(_M_X64)
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# define RETRO_CALLCONV __cdecl
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# else
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# define RETRO_CALLCONV /* all other platforms only have one calling convention each */
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# endif
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#endif
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#ifndef RETRO_API
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# if defined(_WIN32) || defined(__CYGWIN__) || defined(__MINGW32__)
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# ifdef RETRO_IMPORT_SYMBOLS
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# ifdef __GNUC__
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# define RETRO_API RETRO_CALLCONV __attribute__((__dllimport__))
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# else
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# define RETRO_API RETRO_CALLCONV __declspec(dllimport)
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# endif
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# else
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# ifdef __GNUC__
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# define RETRO_API RETRO_CALLCONV __attribute__((__dllexport__))
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# else
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# define RETRO_API RETRO_CALLCONV __declspec(dllexport)
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# endif
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# endif
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# else
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# if defined(__GNUC__) && __GNUC__ >= 4 && !defined(__CELLOS_LV2__)
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# define RETRO_API RETRO_CALLCONV __attribute__((__visibility__("default")))
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# else
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# define RETRO_API RETRO_CALLCONV
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# endif
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# endif
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#endif
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2020-10-10 17:14:10 +00:00
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/* Used for checking API/ABI mismatches that can break libretro
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* implementations.
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* It is not incremented for compatible changes to the API.
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*/
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#define RETRO_API_VERSION 1
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/*
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* Libretro's fundamental device abstractions.
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*
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* Libretro's input system consists of some standardized device types,
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2020-10-10 17:14:10 +00:00
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* such as a joypad (with/without analog), mouse, keyboard, lightgun
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* and a pointer.
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*
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* The functionality of these devices are fixed, and individual cores
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* map their own concept of a controller to libretro's abstractions.
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2020-10-10 17:14:10 +00:00
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* This makes it possible for frontends to map the abstract types to a
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* real input device, and not having to worry about binding input
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* correctly to arbitrary controller layouts.
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*/
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#define RETRO_DEVICE_TYPE_SHIFT 8
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#define RETRO_DEVICE_MASK ((1 << RETRO_DEVICE_TYPE_SHIFT) - 1)
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#define RETRO_DEVICE_SUBCLASS(base, id) (((id + 1) << RETRO_DEVICE_TYPE_SHIFT) | base)
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/* Input disabled. */
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#define RETRO_DEVICE_NONE 0
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2020-10-10 17:14:10 +00:00
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/* The JOYPAD is called RetroPad. It is essentially a Super Nintendo
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* controller, but with additional L2/R2/L3/R3 buttons, similar to a
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* PS1 DualShock. */
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#define RETRO_DEVICE_JOYPAD 1
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/* The mouse is a simple mouse, similar to Super Nintendo's mouse.
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* X and Y coordinates are reported relatively to last poll (poll callback).
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* It is up to the libretro implementation to keep track of where the mouse
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* pointer is supposed to be on the screen.
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* The frontend must make sure not to interfere with its own hardware
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* mouse pointer.
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*/
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#define RETRO_DEVICE_MOUSE 2
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/* KEYBOARD device lets one poll for raw key pressed.
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* It is poll based, so input callback will return with the current
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* pressed state.
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* For event/text based keyboard input, see
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* RETRO_ENVIRONMENT_SET_KEYBOARD_CALLBACK.
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*/
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#define RETRO_DEVICE_KEYBOARD 3
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2020-10-10 17:14:10 +00:00
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/* LIGHTGUN device is similar to Guncon-2 for PlayStation 2.
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* It reports X/Y coordinates in screen space (similar to the pointer)
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* in the range [-0x8000, 0x7fff] in both axes, with zero being center and
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* -0x8000 being out of bounds.
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* As well as reporting on/off screen state. It features a trigger,
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* start/select buttons, auxiliary action buttons and a
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* directional pad. A forced off-screen shot can be requested for
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* auto-reloading function in some games.
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*/
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#define RETRO_DEVICE_LIGHTGUN 4
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/* The ANALOG device is an extension to JOYPAD (RetroPad).
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* Similar to DualShock2 it adds two analog sticks and all buttons can
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* be analog. This is treated as a separate device type as it returns
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* axis values in the full analog range of [-0x7fff, 0x7fff],
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* although some devices may return -0x8000.
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* Positive X axis is right. Positive Y axis is down.
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* Buttons are returned in the range [0, 0x7fff].
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* Only use ANALOG type when polling for analog values.
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*/
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#define RETRO_DEVICE_ANALOG 5
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/* Abstracts the concept of a pointing mechanism, e.g. touch.
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* This allows libretro to query in absolute coordinates where on the
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* screen a mouse (or something similar) is being placed.
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* For a touch centric device, coordinates reported are the coordinates
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* of the press.
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*
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* Coordinates in X and Y are reported as:
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* [-0x7fff, 0x7fff]: -0x7fff corresponds to the far left/top of the screen,
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* and 0x7fff corresponds to the far right/bottom of the screen.
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* The "screen" is here defined as area that is passed to the frontend and
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* later displayed on the monitor.
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*
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* The frontend is free to scale/resize this screen as it sees fit, however,
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* (X, Y) = (-0x7fff, -0x7fff) will correspond to the top-left pixel of the
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* game image, etc.
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*
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* To check if the pointer coordinates are valid (e.g. a touch display
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* actually being touched), PRESSED returns 1 or 0.
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*
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* If using a mouse on a desktop, PRESSED will usually correspond to the
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* left mouse button, but this is a frontend decision.
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* PRESSED will only return 1 if the pointer is inside the game screen.
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*
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* For multi-touch, the index variable can be used to successively query
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* more presses.
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* If index = 0 returns true for _PRESSED, coordinates can be extracted
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* with _X, _Y for index = 0. One can then query _PRESSED, _X, _Y with
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* index = 1, and so on.
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* Eventually _PRESSED will return false for an index. No further presses
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* are registered at this point. */
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#define RETRO_DEVICE_POINTER 6
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/* Buttons for the RetroPad (JOYPAD).
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* The placement of these is equivalent to placements on the
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* Super Nintendo controller.
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* L2/R2/L3/R3 buttons correspond to the PS1 DualShock.
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* Also used as id values for RETRO_DEVICE_INDEX_ANALOG_BUTTON */
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#define RETRO_DEVICE_ID_JOYPAD_B 0
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#define RETRO_DEVICE_ID_JOYPAD_Y 1
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#define RETRO_DEVICE_ID_JOYPAD_SELECT 2
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#define RETRO_DEVICE_ID_JOYPAD_START 3
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#define RETRO_DEVICE_ID_JOYPAD_UP 4
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#define RETRO_DEVICE_ID_JOYPAD_DOWN 5
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#define RETRO_DEVICE_ID_JOYPAD_LEFT 6
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#define RETRO_DEVICE_ID_JOYPAD_RIGHT 7
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#define RETRO_DEVICE_ID_JOYPAD_A 8
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#define RETRO_DEVICE_ID_JOYPAD_X 9
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#define RETRO_DEVICE_ID_JOYPAD_L 10
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#define RETRO_DEVICE_ID_JOYPAD_R 11
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#define RETRO_DEVICE_ID_JOYPAD_L2 12
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#define RETRO_DEVICE_ID_JOYPAD_R2 13
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#define RETRO_DEVICE_ID_JOYPAD_L3 14
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#define RETRO_DEVICE_ID_JOYPAD_R3 15
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#define RETRO_DEVICE_ID_JOYPAD_MASK 256
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/* Index / Id values for ANALOG device. */
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#define RETRO_DEVICE_INDEX_ANALOG_LEFT 0
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#define RETRO_DEVICE_INDEX_ANALOG_RIGHT 1
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#define RETRO_DEVICE_INDEX_ANALOG_BUTTON 2
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#define RETRO_DEVICE_ID_ANALOG_X 0
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#define RETRO_DEVICE_ID_ANALOG_Y 1
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/* Id values for MOUSE. */
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#define RETRO_DEVICE_ID_MOUSE_X 0
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#define RETRO_DEVICE_ID_MOUSE_Y 1
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#define RETRO_DEVICE_ID_MOUSE_LEFT 2
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#define RETRO_DEVICE_ID_MOUSE_RIGHT 3
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#define RETRO_DEVICE_ID_MOUSE_WHEELUP 4
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#define RETRO_DEVICE_ID_MOUSE_WHEELDOWN 5
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#define RETRO_DEVICE_ID_MOUSE_MIDDLE 6
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#define RETRO_DEVICE_ID_MOUSE_HORIZ_WHEELUP 7
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#define RETRO_DEVICE_ID_MOUSE_HORIZ_WHEELDOWN 8
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#define RETRO_DEVICE_ID_MOUSE_BUTTON_4 9
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#define RETRO_DEVICE_ID_MOUSE_BUTTON_5 10
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/* Id values for LIGHTGUN. */
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#define RETRO_DEVICE_ID_LIGHTGUN_SCREEN_X 13 /*Absolute Position*/
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#define RETRO_DEVICE_ID_LIGHTGUN_SCREEN_Y 14 /*Absolute*/
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#define RETRO_DEVICE_ID_LIGHTGUN_IS_OFFSCREEN 15 /*Status Check*/
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#define RETRO_DEVICE_ID_LIGHTGUN_TRIGGER 2
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#define RETRO_DEVICE_ID_LIGHTGUN_RELOAD 16 /*Forced off-screen shot*/
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#define RETRO_DEVICE_ID_LIGHTGUN_AUX_A 3
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#define RETRO_DEVICE_ID_LIGHTGUN_AUX_B 4
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#define RETRO_DEVICE_ID_LIGHTGUN_START 6
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#define RETRO_DEVICE_ID_LIGHTGUN_SELECT 7
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#define RETRO_DEVICE_ID_LIGHTGUN_AUX_C 8
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#define RETRO_DEVICE_ID_LIGHTGUN_DPAD_UP 9
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#define RETRO_DEVICE_ID_LIGHTGUN_DPAD_DOWN 10
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#define RETRO_DEVICE_ID_LIGHTGUN_DPAD_LEFT 11
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#define RETRO_DEVICE_ID_LIGHTGUN_DPAD_RIGHT 12
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/* deprecated */
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#define RETRO_DEVICE_ID_LIGHTGUN_X 0 /*Relative Position*/
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#define RETRO_DEVICE_ID_LIGHTGUN_Y 1 /*Relative*/
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#define RETRO_DEVICE_ID_LIGHTGUN_CURSOR 3 /*Use Aux:A*/
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#define RETRO_DEVICE_ID_LIGHTGUN_TURBO 4 /*Use Aux:B*/
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#define RETRO_DEVICE_ID_LIGHTGUN_PAUSE 5 /*Use Start*/
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/* Id values for POINTER. */
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#define RETRO_DEVICE_ID_POINTER_X 0
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#define RETRO_DEVICE_ID_POINTER_Y 1
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#define RETRO_DEVICE_ID_POINTER_PRESSED 2
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#define RETRO_DEVICE_ID_POINTER_COUNT 3
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/* Returned from retro_get_region(). */
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#define RETRO_REGION_NTSC 0
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#define RETRO_REGION_PAL 1
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/* Id values for LANGUAGE */
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enum retro_language
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{
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RETRO_LANGUAGE_ENGLISH = 0,
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RETRO_LANGUAGE_JAPANESE = 1,
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RETRO_LANGUAGE_FRENCH = 2,
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RETRO_LANGUAGE_SPANISH = 3,
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RETRO_LANGUAGE_GERMAN = 4,
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|
RETRO_LANGUAGE_ITALIAN = 5,
|
|
|
|
|
RETRO_LANGUAGE_DUTCH = 6,
|
|
|
|
|
RETRO_LANGUAGE_PORTUGUESE_BRAZIL = 7,
|
|
|
|
|
RETRO_LANGUAGE_PORTUGUESE_PORTUGAL = 8,
|
|
|
|
|
RETRO_LANGUAGE_RUSSIAN = 9,
|
|
|
|
|
RETRO_LANGUAGE_KOREAN = 10,
|
|
|
|
|
RETRO_LANGUAGE_CHINESE_TRADITIONAL = 11,
|
|
|
|
|
RETRO_LANGUAGE_CHINESE_SIMPLIFIED = 12,
|
|
|
|
|
RETRO_LANGUAGE_ESPERANTO = 13,
|
|
|
|
|
RETRO_LANGUAGE_POLISH = 14,
|
|
|
|
|
RETRO_LANGUAGE_VIETNAMESE = 15,
|
|
|
|
|
RETRO_LANGUAGE_ARABIC = 16,
|
|
|
|
|
RETRO_LANGUAGE_GREEK = 17,
|
|
|
|
|
RETRO_LANGUAGE_TURKISH = 18,
|
2017-04-20 19:03:52 +00:00
|
|
|
RETRO_LANGUAGE_LAST,
|
|
|
|
|
|
|
|
|
|
/* Ensure sizeof(enum) == sizeof(int) */
|
2020-10-10 17:14:10 +00:00
|
|
|
RETRO_LANGUAGE_DUMMY = INT_MAX
|
2017-04-20 19:03:52 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Passed to retro_get_memory_data/size().
|
2020-10-10 17:14:10 +00:00
|
|
|
* If the memory type doesn't apply to the
|
2017-04-20 19:03:52 +00:00
|
|
|
* 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 SAVE_DIRECTORY (preferably) or 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
|
|
|
|
|
|
|
|
|
|
/* 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,
|
2020-10-10 17:14:10 +00:00
|
|
|
RETROK_LEFTBRACE = 123,
|
|
|
|
|
RETROK_BAR = 124,
|
|
|
|
|
RETROK_RIGHTBRACE = 125,
|
|
|
|
|
RETROK_TILDE = 126,
|
2017-04-20 19:03:52 +00:00
|
|
|
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,
|
2020-10-10 17:14:10 +00:00
|
|
|
RETROK_OEM_102 = 323,
|
2017-04-20 19:03:52 +00:00
|
|
|
|
|
|
|
|
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) */
|
|
|
|
|
};
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* If set, this call is not part of the public libretro API yet. It can
|
2017-04-20 19:03:52 +00:00
|
|
|
* change or be removed at any time. */
|
|
|
|
|
#define RETRO_ENVIRONMENT_EXPERIMENTAL 0x10000
|
|
|
|
|
/* Environment callback to be used internally in frontend. */
|
|
|
|
|
#define RETRO_ENVIRONMENT_PRIVATE 0x20000
|
|
|
|
|
|
|
|
|
|
/* Environment commands. */
|
|
|
|
|
#define RETRO_ENVIRONMENT_SET_ROTATION 1 /* const unsigned * --
|
|
|
|
|
* Sets screen rotation of graphics.
|
2020-10-10 17:14:10 +00:00
|
|
|
* Valid values are 0, 1, 2, 3, which rotates screen by 0, 90, 180,
|
2017-04-20 19:03:52 +00:00
|
|
|
* 270 degrees counter-clockwise respectively.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_OVERSCAN 2 /* bool * --
|
2020-10-10 17:14:10 +00:00
|
|
|
* NOTE: As of 2019 this callback is considered deprecated in favor of
|
|
|
|
|
* using core options to manage overscan in a more nuanced, core-specific way.
|
|
|
|
|
*
|
|
|
|
|
* Boolean value whether or not the implementation should use overscan,
|
2017-04-20 19:03:52 +00:00
|
|
|
* 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.
|
|
|
|
|
*/
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Environ 4, 5 are no longer supported (GET_VARIABLE / SET_VARIABLES),
|
2017-04-20 19:03:52 +00:00
|
|
|
* and reserved to avoid possible ABI clash.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#define RETRO_ENVIRONMENT_SET_MESSAGE 6 /* const struct retro_message * --
|
2020-10-10 17:14:10 +00:00
|
|
|
* Sets a message to be displayed in implementation-specific manner
|
2017-04-20 19:03:52 +00:00
|
|
|
* for a certain amount of 'frames'.
|
2020-10-10 17:14:10 +00:00
|
|
|
* Should not be used for trivial messages, which should simply be
|
|
|
|
|
* logged via RETRO_ENVIRONMENT_GET_LOG_INTERFACE (or as a
|
2017-04-20 19:03:52 +00:00
|
|
|
* fallback, 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".
|
|
|
|
|
*
|
|
|
|
|
* This function can be called on a per-game basis,
|
|
|
|
|
* as certain games an implementation can play might be
|
|
|
|
|
* particularly 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.
|
2020-10-10 17:14:10 +00:00
|
|
|
* This directory can be used to store system specific
|
2017-04-20 19:03:52 +00:00
|
|
|
* content 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.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* NOTE: Some cores used this folder also for "save" data such as
|
2017-04-20 19:03:52 +00:00
|
|
|
* memory cards, etc, for lack of a better place to put it.
|
2020-10-10 17:14:10 +00:00
|
|
|
* This is now discouraged, and if possible, cores should try to
|
2017-04-20 19:03:52 +00:00
|
|
|
* use the new GET_SAVE_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).
|
2020-10-10 17:14:10 +00:00
|
|
|
* If the call returns false, the frontend does not support this pixel
|
2017-04-20 19:03:52 +00:00
|
|
|
* format.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* This function should be called inside retro_load_game() or
|
2017-04-20 19:03:52 +00:00
|
|
|
* 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.
|
2020-10-10 17:14:10 +00:00
|
|
|
* The array is terminated by retro_input_descriptor::description
|
2017-04-20 19:03:52 +00:00
|
|
|
* being set to NULL.
|
2020-10-10 17:14:10 +00:00
|
|
|
* This function can be called at any time, but it is recommended
|
2017-04-20 19:03:52 +00:00
|
|
|
* 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 * --
|
2020-10-10 17:14:10 +00:00
|
|
|
* Sets an interface which frontend can use to eject and insert
|
2017-04-20 19:03:52 +00:00
|
|
|
* disk images.
|
2020-10-10 17:14:10 +00:00
|
|
|
* This is used for games which consist of multiple images and
|
2017-04-20 19:03:52 +00:00
|
|
|
* must be manually swapped out by the user (e.g. PSX).
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_SET_HW_RENDER 14
|
|
|
|
|
/* struct retro_hw_render_callback * --
|
2020-10-10 17:14:10 +00:00
|
|
|
* Sets an interface to let a libretro core render with
|
2017-04-20 19:03:52 +00:00
|
|
|
* hardware acceleration.
|
|
|
|
|
* Should be called in retro_load_game().
|
2020-10-10 17:14:10 +00:00
|
|
|
* If successful, libretro cores will be able to render to a
|
2017-04-20 19:03:52 +00:00
|
|
|
* frontend-provided framebuffer.
|
2020-10-10 17:14:10 +00:00
|
|
|
* The size of this framebuffer will be at least as large as
|
2017-04-20 19:03:52 +00:00
|
|
|
* max_width/max_height provided in get_av_info().
|
2020-10-10 17:14:10 +00:00
|
|
|
* If HW rendering is used, pass only RETRO_HW_FRAME_BUFFER_VALID or
|
2017-04-20 19:03:52 +00:00
|
|
|
* NULL to retro_video_refresh_t.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_VARIABLE 15
|
|
|
|
|
/* struct retro_variable * --
|
|
|
|
|
* Interface to acquire user-defined information from environment
|
|
|
|
|
* that cannot feasibly be supported in a multi-system way.
|
2020-10-10 17:14:10 +00:00
|
|
|
* 'key' should be set to a key which has already been set by
|
2017-04-20 19:03:52 +00:00
|
|
|
* SET_VARIABLES.
|
|
|
|
|
* 'data' will be set to a value or NULL.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_SET_VARIABLES 16
|
|
|
|
|
/* const struct retro_variable * --
|
|
|
|
|
* Allows an implementation to signal the environment
|
2020-10-10 17:14:10 +00:00
|
|
|
* which variables it might want to check for later using
|
2017-04-20 19:03:52 +00:00
|
|
|
* GET_VARIABLE.
|
2020-10-10 17:14:10 +00:00
|
|
|
* This allows the frontend to present these variables to
|
2017-04-20 19:03:52 +00:00
|
|
|
* a user dynamically.
|
2020-10-10 17:14:10 +00:00
|
|
|
* This should be called the first time as early as
|
|
|
|
|
* possible (ideally in retro_set_environment).
|
|
|
|
|
* Afterward it may be called again for the core to communicate
|
|
|
|
|
* updated options to the frontend, but the number of core
|
|
|
|
|
* options must not change from the number in the initial call.
|
2017-04-20 19:03:52 +00:00
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* 'data' points to an array of retro_variable structs
|
2017-04-20 19:03:52 +00:00
|
|
|
* terminated by a { NULL, NULL } element.
|
2020-10-10 17:14:10 +00:00
|
|
|
* retro_variable::key should be namespaced to not collide
|
|
|
|
|
* with other implementations' keys. E.g. A core called
|
2017-04-20 19:03:52 +00:00
|
|
|
* 'foo' should use keys named as 'foo_option'.
|
2020-10-10 17:14:10 +00:00
|
|
|
* retro_variable::value should contain a human readable
|
|
|
|
|
* description of the key as well as a '|' delimited list
|
2017-04-20 19:03:52 +00:00
|
|
|
* of expected values.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* The number of possible options should be very limited,
|
|
|
|
|
* i.e. it should be feasible to cycle through options
|
2017-04-20 19:03:52 +00:00
|
|
|
* without a keyboard.
|
|
|
|
|
*
|
|
|
|
|
* First entry should be treated as a default.
|
|
|
|
|
*
|
|
|
|
|
* Example entry:
|
|
|
|
|
* { "foo_option", "Speed hack coprocessor X; false|true" }
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* Text before first ';' is description. This ';' must be
|
|
|
|
|
* followed by a space, and followed by a list of possible
|
2017-04-20 19:03:52 +00:00
|
|
|
* values split up with '|'.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* Only strings are operated on. The possible values will
|
2017-04-20 19:03:52 +00:00
|
|
|
* generally be displayed and stored as-is by the frontend.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE 17
|
|
|
|
|
/* bool * --
|
|
|
|
|
* Result is set to true if some variables are updated by
|
|
|
|
|
* frontend since last call to RETRO_ENVIRONMENT_GET_VARIABLE.
|
|
|
|
|
* Variables should be queried with GET_VARIABLE.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_SET_SUPPORT_NO_GAME 18
|
|
|
|
|
/* const bool * --
|
2020-10-10 17:14:10 +00:00
|
|
|
* If true, the libretro implementation supports calls to
|
2017-04-20 19:03:52 +00:00
|
|
|
* retro_load_game() with NULL as argument.
|
|
|
|
|
* Used by cores which can run without particular game data.
|
|
|
|
|
* This should be called within retro_set_environment() only.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_LIBRETRO_PATH 19
|
|
|
|
|
/* const char ** --
|
2020-10-10 17:14:10 +00:00
|
|
|
* Retrieves the absolute path from where this libretro
|
2017-04-20 19:03:52 +00:00
|
|
|
* implementation was loaded.
|
2020-10-10 17:14:10 +00:00
|
|
|
* NULL is returned if the libretro was loaded statically
|
|
|
|
|
* (i.e. linked statically to frontend), or if the path cannot be
|
2017-04-20 19:03:52 +00:00
|
|
|
* determined.
|
2020-10-10 17:14:10 +00:00
|
|
|
* Mostly useful in cooperation with SET_SUPPORT_NO_GAME as assets can
|
2017-04-20 19:03:52 +00:00
|
|
|
* be loaded without ugly hacks.
|
|
|
|
|
*/
|
2020-10-10 17:14:10 +00:00
|
|
|
|
|
|
|
|
/* Environment 20 was an obsolete version of SET_AUDIO_CALLBACK.
|
2017-04-20 19:03:52 +00:00
|
|
|
* It was not used by any known core at the time,
|
|
|
|
|
* and was removed from the API. */
|
2020-10-10 17:14:10 +00:00
|
|
|
#define RETRO_ENVIRONMENT_SET_FRAME_TIME_CALLBACK 21
|
|
|
|
|
/* const struct retro_frame_time_callback * --
|
|
|
|
|
* Lets the core know how much time has passed since last
|
|
|
|
|
* invocation of retro_run().
|
|
|
|
|
* The frontend can tamper with the timing to fake fast-forward,
|
|
|
|
|
* slow-motion, frame stepping, etc.
|
|
|
|
|
* In this case the delta time will use the reference value
|
|
|
|
|
* in frame_time_callback..
|
|
|
|
|
*/
|
2017-04-20 19:03:52 +00:00
|
|
|
#define RETRO_ENVIRONMENT_SET_AUDIO_CALLBACK 22
|
|
|
|
|
/* const struct retro_audio_callback * --
|
2020-10-10 17:14:10 +00:00
|
|
|
* Sets an interface which is used to notify a libretro core about audio
|
2017-04-20 19:03:52 +00:00
|
|
|
* being available for writing.
|
2020-10-10 17:14:10 +00:00
|
|
|
* The callback can be called from any thread, so a core using this must
|
2017-04-20 19:03:52 +00:00
|
|
|
* have a thread safe audio implementation.
|
2020-10-10 17:14:10 +00:00
|
|
|
* It is intended for games where audio and video are completely
|
2017-04-20 19:03:52 +00:00
|
|
|
* asynchronous and audio can be generated on the fly.
|
2020-10-10 17:14:10 +00:00
|
|
|
* This interface is not recommended for use with emulators which have
|
2017-04-20 19:03:52 +00:00
|
|
|
* highly synchronous audio.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* The callback only notifies about writability; the libretro core still
|
2017-04-20 19:03:52 +00:00
|
|
|
* has to call the normal audio callbacks
|
2020-10-10 17:14:10 +00:00
|
|
|
* to write audio. The audio callbacks must be called from within the
|
2017-04-20 19:03:52 +00:00
|
|
|
* notification callback.
|
|
|
|
|
* The amount of audio data to write is up to the implementation.
|
|
|
|
|
* Generally, the audio callback will be called continously in a loop.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* Due to thread safety guarantees and lack of sync between audio and
|
|
|
|
|
* video, a frontend can selectively disallow this interface based on
|
|
|
|
|
* internal configuration. A core using this interface must also
|
2017-04-20 19:03:52 +00:00
|
|
|
* implement the "normal" audio interface.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* A libretro core using SET_AUDIO_CALLBACK should also make use of
|
2017-04-20 19:03:52 +00:00
|
|
|
* SET_FRAME_TIME_CALLBACK.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_RUMBLE_INTERFACE 23
|
|
|
|
|
/* struct retro_rumble_interface * --
|
2020-10-10 17:14:10 +00:00
|
|
|
* Gets an interface which is used by a libretro core to set
|
2017-04-20 19:03:52 +00:00
|
|
|
* state of rumble motors in controllers.
|
2020-10-10 17:14:10 +00:00
|
|
|
* A strong and weak motor is supported, and they can be
|
2017-04-20 19:03:52 +00:00
|
|
|
* controlled indepedently.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_INPUT_DEVICE_CAPABILITIES 24
|
|
|
|
|
/* uint64_t * --
|
2020-10-10 17:14:10 +00:00
|
|
|
* Gets a bitmask telling which device type are expected to be
|
2017-04-20 19:03:52 +00:00
|
|
|
* handled properly in a call to retro_input_state_t.
|
2020-10-10 17:14:10 +00:00
|
|
|
* Devices which are not handled or recognized always return
|
2017-04-20 19:03:52 +00:00
|
|
|
* 0 in retro_input_state_t.
|
|
|
|
|
* Example bitmask: caps = (1 << RETRO_DEVICE_JOYPAD) | (1 << RETRO_DEVICE_ANALOG).
|
|
|
|
|
* Should only be called in retro_run().
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_SENSOR_INTERFACE (25 | RETRO_ENVIRONMENT_EXPERIMENTAL)
|
|
|
|
|
/* struct retro_sensor_interface * --
|
|
|
|
|
* Gets access to the sensor interface.
|
|
|
|
|
* The purpose of this interface is to allow
|
2020-10-10 17:14:10 +00:00
|
|
|
* setting state related to sensors such as polling rate,
|
2017-04-20 19:03:52 +00:00
|
|
|
* enabling/disable it entirely, etc.
|
2020-10-10 17:14:10 +00:00
|
|
|
* Reading sensor state is done via the normal
|
2017-04-20 19:03:52 +00:00
|
|
|
* input_state_callback API.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_CAMERA_INTERFACE (26 | RETRO_ENVIRONMENT_EXPERIMENTAL)
|
|
|
|
|
/* struct retro_camera_callback * --
|
|
|
|
|
* Gets an interface to a video camera driver.
|
2020-10-10 17:14:10 +00:00
|
|
|
* A libretro core can use this interface to get access to a
|
2017-04-20 19:03:52 +00:00
|
|
|
* video camera.
|
2020-10-10 17:14:10 +00:00
|
|
|
* New video frames are delivered in a callback in same
|
2017-04-20 19:03:52 +00:00
|
|
|
* thread as retro_run().
|
|
|
|
|
*
|
|
|
|
|
* GET_CAMERA_INTERFACE should be called in retro_load_game().
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* Depending on the camera implementation used, camera frames
|
2017-04-20 19:03:52 +00:00
|
|
|
* will be delivered as a raw framebuffer,
|
|
|
|
|
* or as an OpenGL texture directly.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* The core has to tell the frontend here which types of
|
2017-04-20 19:03:52 +00:00
|
|
|
* buffers can be handled properly.
|
2020-10-10 17:14:10 +00:00
|
|
|
* An OpenGL texture can only be handled when using a
|
2017-04-20 19:03:52 +00:00
|
|
|
* libretro GL core (SET_HW_RENDER).
|
2020-10-10 17:14:10 +00:00
|
|
|
* It is recommended to use a libretro GL core when
|
2017-04-20 19:03:52 +00:00
|
|
|
* using camera interface.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* The camera is not started automatically. The retrieved start/stop
|
2017-04-20 19:03:52 +00:00
|
|
|
* functions must be used to explicitly
|
|
|
|
|
* start and stop the camera driver.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_LOG_INTERFACE 27
|
|
|
|
|
/* struct retro_log_callback * --
|
2020-10-10 17:14:10 +00:00
|
|
|
* Gets an interface for logging. This is useful for
|
2017-04-20 19:03:52 +00:00
|
|
|
* logging in a cross-platform way
|
2020-10-10 17:14:10 +00:00
|
|
|
* as certain platforms cannot use stderr for logging.
|
2017-04-20 19:03:52 +00:00
|
|
|
* It also allows the frontend to
|
|
|
|
|
* show logging information in a more suitable way.
|
2020-10-10 17:14:10 +00:00
|
|
|
* If this interface is not used, libretro cores should
|
2017-04-20 19:03:52 +00:00
|
|
|
* log to stderr as desired.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_PERF_INTERFACE 28
|
|
|
|
|
/* struct retro_perf_callback * --
|
2020-10-10 17:14:10 +00:00
|
|
|
* Gets an interface for performance counters. This is useful
|
|
|
|
|
* for performance logging in a cross-platform way and for detecting
|
2017-04-20 19:03:52 +00:00
|
|
|
* architecture-specific features, such as SIMD support.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_LOCATION_INTERFACE 29
|
|
|
|
|
/* struct retro_location_callback * --
|
|
|
|
|
* Gets access to the location interface.
|
2020-10-10 17:14:10 +00:00
|
|
|
* The purpose of this interface is to be able to retrieve
|
2017-04-20 19:03:52 +00:00
|
|
|
* location-based information from the host device,
|
|
|
|
|
* such as current latitude / longitude.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_CONTENT_DIRECTORY 30 /* Old name, kept for compatibility. */
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_CORE_ASSETS_DIRECTORY 30
|
|
|
|
|
/* const char ** --
|
|
|
|
|
* Returns the "core assets" directory of the frontend.
|
2020-10-10 17:14:10 +00:00
|
|
|
* This directory can be used to store specific assets that the
|
2017-04-20 19:03:52 +00:00
|
|
|
* core relies upon, such as art assets,
|
|
|
|
|
* input data, etc 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_GET_SAVE_DIRECTORY 31
|
|
|
|
|
/* const char ** --
|
2020-10-10 17:14:10 +00:00
|
|
|
* Returns the "save" directory of the frontend, unless there is no
|
|
|
|
|
* save directory available. The save directory should be used to
|
|
|
|
|
* store SRAM, memory cards, high scores, etc, if the libretro core
|
2017-04-20 19:03:52 +00:00
|
|
|
* cannot use the regular memory interface (retro_get_memory_data()).
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* If the frontend cannot designate a save directory, it will return
|
|
|
|
|
* NULL to indicate that the core should attempt to operate without a
|
|
|
|
|
* save directory set.
|
|
|
|
|
*
|
|
|
|
|
* NOTE: early libretro cores used the system directory for save
|
|
|
|
|
* files. Cores that need to be backwards-compatible can still check
|
|
|
|
|
* GET_SYSTEM_DIRECTORY.
|
2017-04-20 19:03:52 +00:00
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_SET_SYSTEM_AV_INFO 32
|
|
|
|
|
/* const struct retro_system_av_info * --
|
2020-10-10 17:14:10 +00:00
|
|
|
* Sets a new av_info structure. This can only be called from
|
2017-04-20 19:03:52 +00:00
|
|
|
* within retro_run().
|
2020-10-10 17:14:10 +00:00
|
|
|
* This should *only* be used if the core is completely altering the
|
2017-04-20 19:03:52 +00:00
|
|
|
* internal resolutions, aspect ratios, timings, sampling rate, etc.
|
2020-10-10 17:14:10 +00:00
|
|
|
* Calling this can require a full reinitialization of video/audio
|
2017-04-20 19:03:52 +00:00
|
|
|
* drivers in the frontend,
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* so it is important to call it very sparingly, and usually only with
|
2017-04-20 19:03:52 +00:00
|
|
|
* the users explicit consent.
|
2020-10-10 17:14:10 +00:00
|
|
|
* An eventual driver reinitialize will happen so that video and
|
2017-04-20 19:03:52 +00:00
|
|
|
* audio callbacks
|
2020-10-10 17:14:10 +00:00
|
|
|
* happening after this call within the same retro_run() call will
|
2017-04-20 19:03:52 +00:00
|
|
|
* target the newly initialized driver.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* This callback makes it possible to support configurable resolutions
|
2017-04-20 19:03:52 +00:00
|
|
|
* in games, which can be useful to
|
|
|
|
|
* avoid setting the "worst case" in max_width/max_height.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* ***HIGHLY RECOMMENDED*** Do not call this callback every time
|
2017-04-20 19:03:52 +00:00
|
|
|
* resolution changes in an emulator core if it's
|
2020-10-10 17:14:10 +00:00
|
|
|
* expected to be a temporary change, for the reasons of possible
|
2017-04-20 19:03:52 +00:00
|
|
|
* driver reinitialization.
|
2020-10-10 17:14:10 +00:00
|
|
|
* This call is not a free pass for not trying to provide
|
|
|
|
|
* correct values in retro_get_system_av_info(). If you need to change
|
|
|
|
|
* things like aspect ratio or nominal width/height,
|
|
|
|
|
* use RETRO_ENVIRONMENT_SET_GEOMETRY, which is a softer variant
|
2017-04-20 19:03:52 +00:00
|
|
|
* of SET_SYSTEM_AV_INFO.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* If this returns false, the frontend does not acknowledge a
|
2017-04-20 19:03:52 +00:00
|
|
|
* changed av_info struct.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_SET_PROC_ADDRESS_CALLBACK 33
|
|
|
|
|
/* const struct retro_get_proc_address_interface * --
|
2020-10-10 17:14:10 +00:00
|
|
|
* Allows a libretro core to announce support for the
|
2017-04-20 19:03:52 +00:00
|
|
|
* get_proc_address() interface.
|
2020-10-10 17:14:10 +00:00
|
|
|
* This interface allows for a standard way to extend libretro where
|
2017-04-20 19:03:52 +00:00
|
|
|
* use of environment calls are too indirect,
|
|
|
|
|
* e.g. for cases where the frontend wants to call directly into the core.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* If a core wants to expose this interface, SET_PROC_ADDRESS_CALLBACK
|
2017-04-20 19:03:52 +00:00
|
|
|
* **MUST** be called from within retro_set_environment().
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_SET_SUBSYSTEM_INFO 34
|
|
|
|
|
/* const struct retro_subsystem_info * --
|
|
|
|
|
* This environment call introduces the concept of libretro "subsystems".
|
2020-10-10 17:14:10 +00:00
|
|
|
* A subsystem is a variant of a libretro core which supports
|
2017-04-20 19:03:52 +00:00
|
|
|
* different kinds of games.
|
2020-10-10 17:14:10 +00:00
|
|
|
* The purpose of this is to support e.g. emulators which might
|
2017-04-20 19:03:52 +00:00
|
|
|
* have special needs, e.g. Super Nintendo's Super GameBoy, Sufami Turbo.
|
2020-10-10 17:14:10 +00:00
|
|
|
* It can also be used to pick among subsystems in an explicit way
|
2017-04-20 19:03:52 +00:00
|
|
|
* if the libretro implementation is a multi-system emulator itself.
|
|
|
|
|
*
|
|
|
|
|
* Loading a game via a subsystem is done with retro_load_game_special(),
|
2020-10-10 17:14:10 +00:00
|
|
|
* and this environment call allows a libretro core to expose which
|
2017-04-20 19:03:52 +00:00
|
|
|
* subsystems are supported for use with retro_load_game_special().
|
2020-10-10 17:14:10 +00:00
|
|
|
* A core passes an array of retro_game_special_info which is terminated
|
2017-04-20 19:03:52 +00:00
|
|
|
* with a zeroed out retro_game_special_info struct.
|
|
|
|
|
*
|
|
|
|
|
* If a core wants to use this functionality, SET_SUBSYSTEM_INFO
|
|
|
|
|
* **MUST** be called from within retro_set_environment().
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_SET_CONTROLLER_INFO 35
|
|
|
|
|
/* const struct retro_controller_info * --
|
2020-10-10 17:14:10 +00:00
|
|
|
* This environment call lets a libretro core tell the frontend
|
|
|
|
|
* which controller subclasses are recognized in calls to
|
2017-04-20 19:03:52 +00:00
|
|
|
* retro_set_controller_port_device().
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* Some emulators such as Super Nintendo support multiple lightgun
|
|
|
|
|
* types which must be specifically selected from. It is therefore
|
|
|
|
|
* sometimes necessary for a frontend to be able to tell the core
|
|
|
|
|
* about a special kind of input device which is not specifcally
|
|
|
|
|
* provided by the Libretro API.
|
|
|
|
|
*
|
|
|
|
|
* In order for a frontend to understand the workings of those devices,
|
|
|
|
|
* they must be defined as a specialized subclass of the generic device
|
|
|
|
|
* types already defined in the libretro API.
|
|
|
|
|
*
|
|
|
|
|
* The core must pass an array of const struct retro_controller_info which
|
|
|
|
|
* is terminated with a blanked out struct. Each element of the
|
|
|
|
|
* retro_controller_info struct corresponds to the ascending port index
|
|
|
|
|
* that is passed to retro_set_controller_port_device() when that function
|
|
|
|
|
* is called to indicate to the core that the frontend has changed the
|
|
|
|
|
* active device subclass. SEE ALSO: retro_set_controller_port_device()
|
|
|
|
|
*
|
|
|
|
|
* The ascending input port indexes provided by the core in the struct
|
|
|
|
|
* are generally presented by frontends as ascending User # or Player #,
|
|
|
|
|
* such as Player 1, Player 2, Player 3, etc. Which device subclasses are
|
|
|
|
|
* supported can vary per input port.
|
|
|
|
|
*
|
|
|
|
|
* The first inner element of each entry in the retro_controller_info array
|
|
|
|
|
* is a retro_controller_description struct that specifies the names and
|
|
|
|
|
* codes of all device subclasses that are available for the corresponding
|
|
|
|
|
* User or Player, beginning with the generic Libretro device that the
|
|
|
|
|
* subclasses are derived from. The second inner element of each entry is the
|
|
|
|
|
* total number of subclasses that are listed in the retro_controller_description.
|
|
|
|
|
*
|
|
|
|
|
* NOTE: Even if special device types are set in the libretro core,
|
2017-04-20 19:03:52 +00:00
|
|
|
* libretro should only poll input based on the base input device types.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_SET_MEMORY_MAPS (36 | RETRO_ENVIRONMENT_EXPERIMENTAL)
|
|
|
|
|
/* const struct retro_memory_map * --
|
2020-10-10 17:14:10 +00:00
|
|
|
* This environment call lets a libretro core tell the frontend
|
2017-04-20 19:03:52 +00:00
|
|
|
* about the memory maps this core emulates.
|
|
|
|
|
* This can be used to implement, for example, cheats in a core-agnostic way.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* Should only be used by emulators; it doesn't make much sense for
|
2017-04-20 19:03:52 +00:00
|
|
|
* anything else.
|
2020-10-10 17:14:10 +00:00
|
|
|
* It is recommended to expose all relevant pointers through
|
2017-04-20 19:03:52 +00:00
|
|
|
* retro_get_memory_* as well.
|
|
|
|
|
*
|
|
|
|
|
* Can be called from retro_init and retro_load_game.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_SET_GEOMETRY 37
|
|
|
|
|
/* const struct retro_game_geometry * --
|
2020-10-10 17:14:10 +00:00
|
|
|
* This environment call is similar to SET_SYSTEM_AV_INFO for changing
|
|
|
|
|
* video parameters, but provides a guarantee that drivers will not be
|
2017-04-20 19:03:52 +00:00
|
|
|
* reinitialized.
|
|
|
|
|
* This can only be called from within retro_run().
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* The purpose of this call is to allow a core to alter nominal
|
|
|
|
|
* width/heights as well as aspect ratios on-the-fly, which can be
|
2017-04-20 19:03:52 +00:00
|
|
|
* useful for some emulators to change in run-time.
|
|
|
|
|
*
|
|
|
|
|
* max_width/max_height arguments are ignored and cannot be changed
|
2020-10-10 17:14:10 +00:00
|
|
|
* with this call as this could potentially require a reinitialization or a
|
2017-04-20 19:03:52 +00:00
|
|
|
* non-constant time operation.
|
|
|
|
|
* If max_width/max_height are to be changed, SET_SYSTEM_AV_INFO is required.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* A frontend must guarantee that this environment call completes in
|
2017-04-20 19:03:52 +00:00
|
|
|
* constant time.
|
|
|
|
|
*/
|
2020-10-10 17:14:10 +00:00
|
|
|
#define RETRO_ENVIRONMENT_GET_USERNAME 38
|
2017-04-20 19:03:52 +00:00
|
|
|
/* const char **
|
|
|
|
|
* Returns the specified username of the frontend, if specified by the user.
|
2020-10-10 17:14:10 +00:00
|
|
|
* This username can be used as a nickname for a core that has online facilities
|
2017-04-20 19:03:52 +00:00
|
|
|
* or any other mode where personalization of the user is desirable.
|
|
|
|
|
* The returned value can be NULL.
|
2020-10-10 17:14:10 +00:00
|
|
|
* If this environ callback is used by a core that requires a valid username,
|
2017-04-20 19:03:52 +00:00
|
|
|
* a default username should be specified by the core.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_LANGUAGE 39
|
|
|
|
|
/* unsigned * --
|
|
|
|
|
* Returns the specified language of the frontend, if specified by the user.
|
|
|
|
|
* It can be used by the core for localization purposes.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_CURRENT_SOFTWARE_FRAMEBUFFER (40 | RETRO_ENVIRONMENT_EXPERIMENTAL)
|
|
|
|
|
/* struct retro_framebuffer * --
|
|
|
|
|
* Returns a preallocated framebuffer which the core can use for rendering
|
|
|
|
|
* the frame into when not using SET_HW_RENDER.
|
|
|
|
|
* The framebuffer returned from this call must not be used
|
|
|
|
|
* after the current call to retro_run() returns.
|
|
|
|
|
*
|
|
|
|
|
* The goal of this call is to allow zero-copy behavior where a core
|
|
|
|
|
* can render directly into video memory, avoiding extra bandwidth cost by copying
|
|
|
|
|
* memory from core to video memory.
|
|
|
|
|
*
|
|
|
|
|
* If this call succeeds and the core renders into it,
|
|
|
|
|
* the framebuffer pointer and pitch can be passed to retro_video_refresh_t.
|
|
|
|
|
* If the buffer from GET_CURRENT_SOFTWARE_FRAMEBUFFER is to be used,
|
|
|
|
|
* the core must pass the exact
|
|
|
|
|
* same pointer as returned by GET_CURRENT_SOFTWARE_FRAMEBUFFER;
|
|
|
|
|
* i.e. passing a pointer which is offset from the
|
|
|
|
|
* buffer is undefined. The width, height and pitch parameters
|
|
|
|
|
* must also match exactly to the values obtained from GET_CURRENT_SOFTWARE_FRAMEBUFFER.
|
|
|
|
|
*
|
|
|
|
|
* It is possible for a frontend to return a different pixel format
|
|
|
|
|
* than the one used in SET_PIXEL_FORMAT. This can happen if the frontend
|
|
|
|
|
* needs to perform conversion.
|
|
|
|
|
*
|
|
|
|
|
* It is still valid for a core to render to a different buffer
|
|
|
|
|
* even if GET_CURRENT_SOFTWARE_FRAMEBUFFER succeeds.
|
|
|
|
|
*
|
|
|
|
|
* A frontend must make sure that the pointer obtained from this function is
|
|
|
|
|
* writeable (and readable).
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_HW_RENDER_INTERFACE (41 | RETRO_ENVIRONMENT_EXPERIMENTAL)
|
|
|
|
|
/* const struct retro_hw_render_interface ** --
|
|
|
|
|
* Returns an API specific rendering interface for accessing API specific data.
|
|
|
|
|
* Not all HW rendering APIs support or need this.
|
|
|
|
|
* The contents of the returned pointer is specific to the rendering API
|
|
|
|
|
* being used. See the various headers like libretro_vulkan.h, etc.
|
|
|
|
|
*
|
|
|
|
|
* GET_HW_RENDER_INTERFACE cannot be called before context_reset has been called.
|
|
|
|
|
* Similarly, after context_destroyed callback returns,
|
|
|
|
|
* the contents of the HW_RENDER_INTERFACE are invalidated.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_SET_SUPPORT_ACHIEVEMENTS (42 | RETRO_ENVIRONMENT_EXPERIMENTAL)
|
|
|
|
|
/* const bool * --
|
|
|
|
|
* If true, the libretro implementation supports achievements
|
|
|
|
|
* either via memory descriptors set with RETRO_ENVIRONMENT_SET_MEMORY_MAPS
|
|
|
|
|
* or via retro_get_memory_data/retro_get_memory_size.
|
|
|
|
|
*
|
|
|
|
|
* This must be called before the first call to retro_run.
|
|
|
|
|
*/
|
2020-10-10 17:14:10 +00:00
|
|
|
#define RETRO_ENVIRONMENT_SET_HW_RENDER_CONTEXT_NEGOTIATION_INTERFACE (43 | RETRO_ENVIRONMENT_EXPERIMENTAL)
|
|
|
|
|
/* const struct retro_hw_render_context_negotiation_interface * --
|
|
|
|
|
* Sets an interface which lets the libretro core negotiate with frontend how a context is created.
|
|
|
|
|
* The semantics of this interface depends on which API is used in SET_HW_RENDER earlier.
|
|
|
|
|
* This interface will be used when the frontend is trying to create a HW rendering context,
|
|
|
|
|
* so it will be used after SET_HW_RENDER, but before the context_reset callback.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_SET_SERIALIZATION_QUIRKS 44
|
|
|
|
|
/* uint64_t * --
|
|
|
|
|
* Sets quirk flags associated with serialization. The frontend will zero any flags it doesn't
|
|
|
|
|
* recognize or support. Should be set in either retro_init or retro_load_game, but not both.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_SET_HW_SHARED_CONTEXT (44 | RETRO_ENVIRONMENT_EXPERIMENTAL)
|
|
|
|
|
/* N/A (null) * --
|
|
|
|
|
* The frontend will try to use a 'shared' hardware context (mostly applicable
|
|
|
|
|
* to OpenGL) when a hardware context is being set up.
|
|
|
|
|
*
|
|
|
|
|
* Returns true if the frontend supports shared hardware contexts and false
|
|
|
|
|
* if the frontend does not support shared hardware contexts.
|
|
|
|
|
*
|
|
|
|
|
* This will do nothing on its own until SET_HW_RENDER env callbacks are
|
|
|
|
|
* being used.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_VFS_INTERFACE (45 | RETRO_ENVIRONMENT_EXPERIMENTAL)
|
|
|
|
|
/* struct retro_vfs_interface_info * --
|
|
|
|
|
* Gets access to the VFS interface.
|
|
|
|
|
* VFS presence needs to be queried prior to load_game or any
|
|
|
|
|
* get_system/save/other_directory being called to let front end know
|
|
|
|
|
* core supports VFS before it starts handing out paths.
|
|
|
|
|
* It is recomended to do so in retro_set_environment
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_LED_INTERFACE (46 | RETRO_ENVIRONMENT_EXPERIMENTAL)
|
|
|
|
|
/* struct retro_led_interface * --
|
|
|
|
|
* Gets an interface which is used by a libretro core to set
|
|
|
|
|
* state of LEDs.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_AUDIO_VIDEO_ENABLE (47 | RETRO_ENVIRONMENT_EXPERIMENTAL)
|
|
|
|
|
/* int * --
|
|
|
|
|
* Tells the core if the frontend wants audio or video.
|
|
|
|
|
* If disabled, the frontend will discard the audio or video,
|
|
|
|
|
* so the core may decide to skip generating a frame or generating audio.
|
|
|
|
|
* This is mainly used for increasing performance.
|
|
|
|
|
* Bit 0 (value 1): Enable Video
|
|
|
|
|
* Bit 1 (value 2): Enable Audio
|
|
|
|
|
* Bit 2 (value 4): Use Fast Savestates.
|
|
|
|
|
* Bit 3 (value 8): Hard Disable Audio
|
|
|
|
|
* Other bits are reserved for future use and will default to zero.
|
|
|
|
|
* If video is disabled:
|
|
|
|
|
* * The frontend wants the core to not generate any video,
|
|
|
|
|
* including presenting frames via hardware acceleration.
|
|
|
|
|
* * The frontend's video frame callback will do nothing.
|
|
|
|
|
* * After running the frame, the video output of the next frame should be
|
|
|
|
|
* no different than if video was enabled, and saving and loading state
|
|
|
|
|
* should have no issues.
|
|
|
|
|
* If audio is disabled:
|
|
|
|
|
* * The frontend wants the core to not generate any audio.
|
|
|
|
|
* * The frontend's audio callbacks will do nothing.
|
|
|
|
|
* * After running the frame, the audio output of the next frame should be
|
|
|
|
|
* no different than if audio was enabled, and saving and loading state
|
|
|
|
|
* should have no issues.
|
|
|
|
|
* Fast Savestates:
|
|
|
|
|
* * Guaranteed to be created by the same binary that will load them.
|
|
|
|
|
* * Will not be written to or read from the disk.
|
|
|
|
|
* * Suggest that the core assumes loading state will succeed.
|
|
|
|
|
* * Suggest that the core updates its memory buffers in-place if possible.
|
|
|
|
|
* * Suggest that the core skips clearing memory.
|
|
|
|
|
* * Suggest that the core skips resetting the system.
|
|
|
|
|
* * Suggest that the core may skip validation steps.
|
|
|
|
|
* Hard Disable Audio:
|
|
|
|
|
* * Used for a secondary core when running ahead.
|
|
|
|
|
* * Indicates that the frontend will never need audio from the core.
|
|
|
|
|
* * Suggests that the core may stop synthesizing audio, but this should not
|
|
|
|
|
* compromise emulation accuracy.
|
|
|
|
|
* * Audio output for the next frame does not matter, and the frontend will
|
|
|
|
|
* never need an accurate audio state in the future.
|
|
|
|
|
* * State will never be saved when using Hard Disable Audio.
|
|
|
|
|
*/
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_MIDI_INTERFACE (48 | RETRO_ENVIRONMENT_EXPERIMENTAL)
|
|
|
|
|
/* struct retro_midi_interface ** --
|
|
|
|
|
* Returns a MIDI interface that can be used for raw data I/O.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_FASTFORWARDING (49 | RETRO_ENVIRONMENT_EXPERIMENTAL)
|
|
|
|
|
/* bool * --
|
|
|
|
|
* Boolean value that indicates whether or not the frontend is in
|
|
|
|
|
* fastforwarding mode.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_TARGET_REFRESH_RATE (50 | RETRO_ENVIRONMENT_EXPERIMENTAL)
|
|
|
|
|
/* float * --
|
|
|
|
|
* Float value that lets us know what target refresh rate
|
|
|
|
|
* is curently in use by the frontend.
|
|
|
|
|
*
|
|
|
|
|
* The core can use the returned value to set an ideal
|
|
|
|
|
* refresh rate/framerate.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_INPUT_BITMASKS (51 | RETRO_ENVIRONMENT_EXPERIMENTAL)
|
|
|
|
|
/* bool * --
|
|
|
|
|
* Boolean value that indicates whether or not the frontend supports
|
|
|
|
|
* input bitmasks being returned by retro_input_state_t. The advantage
|
|
|
|
|
* of this is that retro_input_state_t has to be only called once to
|
|
|
|
|
* grab all button states instead of multiple times.
|
|
|
|
|
*
|
|
|
|
|
* If it returns true, you can pass RETRO_DEVICE_ID_JOYPAD_MASK as 'id'
|
|
|
|
|
* to retro_input_state_t (make sure 'device' is set to RETRO_DEVICE_JOYPAD).
|
|
|
|
|
* It will return a bitmask of all the digital buttons.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#define RETRO_ENVIRONMENT_GET_CORE_OPTIONS_VERSION 52
|
|
|
|
|
/* unsigned * --
|
|
|
|
|
* Unsigned value is the API version number of the core options
|
|
|
|
|
* interface supported by the frontend. If callback return false,
|
|
|
|
|
* API version is assumed to be 0.
|
|
|
|
|
*
|
|
|
|
|
* In legacy code, core options are set by passing an array of
|
|
|
|
|
* retro_variable structs to RETRO_ENVIRONMENT_SET_VARIABLES.
|
|
|
|
|
* This may be still be done regardless of the core options
|
|
|
|
|
* interface version.
|
|
|
|
|
*
|
|
|
|
|
* If version is 1 however, core options may instead be set by
|
|
|
|
|
* passing an array of retro_core_option_definition structs to
|
|
|
|
|
* RETRO_ENVIRONMENT_SET_CORE_OPTIONS, or a 2D array of
|
|
|
|
|
* retro_core_option_definition structs to RETRO_ENVIRONMENT_SET_CORE_OPTIONS_INTL.
|
|
|
|
|
* This allows the core to additionally set option sublabel information
|
|
|
|
|
* and/or provide localisation support.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#define RETRO_ENVIRONMENT_SET_CORE_OPTIONS 53
|
|
|
|
|
/* const struct retro_core_option_definition ** --
|
|
|
|
|
* Allows an implementation to signal the environment
|
|
|
|
|
* which variables it might want to check for later using
|
|
|
|
|
* GET_VARIABLE.
|
|
|
|
|
* This allows the frontend to present these variables to
|
|
|
|
|
* a user dynamically.
|
|
|
|
|
* This should only be called if RETRO_ENVIRONMENT_GET_ENHANCED_CORE_OPTIONS
|
|
|
|
|
* returns an API version of 1.
|
|
|
|
|
* This should be called instead of RETRO_ENVIRONMENT_SET_VARIABLES.
|
|
|
|
|
* This should be called the first time as early as
|
|
|
|
|
* possible (ideally in retro_set_environment).
|
|
|
|
|
* Afterwards it may be called again for the core to communicate
|
|
|
|
|
* updated options to the frontend, but the number of core
|
|
|
|
|
* options must not change from the number in the initial call.
|
|
|
|
|
*
|
|
|
|
|
* 'data' points to an array of retro_core_option_definition structs
|
|
|
|
|
* terminated by a { NULL, NULL, NULL, {{0}}, NULL } element.
|
|
|
|
|
* retro_core_option_definition::key should be namespaced to not collide
|
|
|
|
|
* with other implementations' keys. e.g. A core called
|
|
|
|
|
* 'foo' should use keys named as 'foo_option'.
|
|
|
|
|
* retro_core_option_definition::desc should contain a human readable
|
|
|
|
|
* description of the key.
|
|
|
|
|
* retro_core_option_definition::info should contain any additional human
|
|
|
|
|
* readable information text that a typical user may need to
|
|
|
|
|
* understand the functionality of the option.
|
|
|
|
|
* retro_core_option_definition::values is an array of retro_core_option_value
|
|
|
|
|
* structs terminated by a { NULL, NULL } element.
|
|
|
|
|
* > retro_core_option_definition::values[index].value is an expected option
|
|
|
|
|
* value.
|
|
|
|
|
* > retro_core_option_definition::values[index].label is a human readable
|
|
|
|
|
* label used when displaying the value on screen. If NULL,
|
|
|
|
|
* the value itself is used.
|
|
|
|
|
* retro_core_option_definition::default_value is the default core option
|
|
|
|
|
* setting. It must match one of the expected option values in the
|
|
|
|
|
* retro_core_option_definition::values array. If it does not, or the
|
|
|
|
|
* default value is NULL, the first entry in the
|
|
|
|
|
* retro_core_option_definition::values array is treated as the default.
|
|
|
|
|
*
|
|
|
|
|
* The number of possible options should be very limited,
|
|
|
|
|
* and must be less than RETRO_NUM_CORE_OPTION_VALUES_MAX.
|
|
|
|
|
* i.e. it should be feasible to cycle through options
|
|
|
|
|
* without a keyboard.
|
|
|
|
|
*
|
|
|
|
|
* First entry should be treated as a default.
|
|
|
|
|
*
|
|
|
|
|
* Example entry:
|
|
|
|
|
* {
|
|
|
|
|
* "foo_option",
|
|
|
|
|
* "Speed hack coprocessor X",
|
|
|
|
|
* "Provides increased performance at the expense of reduced accuracy",
|
|
|
|
|
* {
|
|
|
|
|
* { "false", NULL },
|
|
|
|
|
* { "true", NULL },
|
|
|
|
|
* { "unstable", "Turbo (Unstable)" },
|
|
|
|
|
* { NULL, NULL },
|
|
|
|
|
* },
|
|
|
|
|
* "false"
|
|
|
|
|
* }
|
|
|
|
|
*
|
|
|
|
|
* Only strings are operated on. The possible values will
|
|
|
|
|
* generally be displayed and stored as-is by the frontend.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#define RETRO_ENVIRONMENT_SET_CORE_OPTIONS_INTL 54
|
|
|
|
|
/* const struct retro_core_options_intl * --
|
|
|
|
|
* Allows an implementation to signal the environment
|
|
|
|
|
* which variables it might want to check for later using
|
|
|
|
|
* GET_VARIABLE.
|
|
|
|
|
* This allows the frontend to present these variables to
|
|
|
|
|
* a user dynamically.
|
|
|
|
|
* This should only be called if RETRO_ENVIRONMENT_GET_ENHANCED_CORE_OPTIONS
|
|
|
|
|
* returns an API version of 1.
|
|
|
|
|
* This should be called instead of RETRO_ENVIRONMENT_SET_VARIABLES.
|
|
|
|
|
* This should be called the first time as early as
|
|
|
|
|
* possible (ideally in retro_set_environment).
|
|
|
|
|
* Afterwards it may be called again for the core to communicate
|
|
|
|
|
* updated options to the frontend, but the number of core
|
|
|
|
|
* options must not change from the number in the initial call.
|
|
|
|
|
*
|
|
|
|
|
* This is fundamentally the same as RETRO_ENVIRONMENT_SET_CORE_OPTIONS,
|
|
|
|
|
* with the addition of localisation support. The description of the
|
|
|
|
|
* RETRO_ENVIRONMENT_SET_CORE_OPTIONS callback should be consulted
|
|
|
|
|
* for further details.
|
|
|
|
|
*
|
|
|
|
|
* 'data' points to a retro_core_options_intl struct.
|
|
|
|
|
*
|
|
|
|
|
* retro_core_options_intl::us is a pointer to an array of
|
|
|
|
|
* retro_core_option_definition structs defining the US English
|
|
|
|
|
* core options implementation. It must point to a valid array.
|
|
|
|
|
*
|
|
|
|
|
* retro_core_options_intl::local is a pointer to an array of
|
|
|
|
|
* retro_core_option_definition structs defining core options for
|
|
|
|
|
* the current frontend language. It may be NULL (in which case
|
|
|
|
|
* retro_core_options_intl::us is used by the frontend). Any items
|
|
|
|
|
* missing from this array will be read from retro_core_options_intl::us
|
|
|
|
|
* instead.
|
|
|
|
|
*
|
|
|
|
|
* NOTE: Default core option values are always taken from the
|
|
|
|
|
* retro_core_options_intl::us array. Any default values in
|
|
|
|
|
* retro_core_options_intl::local array will be ignored.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#define RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY 55
|
|
|
|
|
/* struct retro_core_option_display * --
|
|
|
|
|
*
|
|
|
|
|
* Allows an implementation to signal the environment to show
|
|
|
|
|
* or hide a variable when displaying core options. This is
|
|
|
|
|
* considered a *suggestion*. The frontend is free to ignore
|
|
|
|
|
* this callback, and its implementation not considered mandatory.
|
|
|
|
|
*
|
|
|
|
|
* 'data' points to a retro_core_option_display struct
|
|
|
|
|
*
|
|
|
|
|
* retro_core_option_display::key is a variable identifier
|
|
|
|
|
* which has already been set by SET_VARIABLES/SET_CORE_OPTIONS.
|
|
|
|
|
*
|
|
|
|
|
* retro_core_option_display::visible is a boolean, specifying
|
|
|
|
|
* whether variable should be displayed
|
|
|
|
|
*
|
|
|
|
|
* Note that all core option variables will be set visible by
|
|
|
|
|
* default when calling SET_VARIABLES/SET_CORE_OPTIONS.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
/* VFS functionality */
|
|
|
|
|
|
|
|
|
|
/* File paths:
|
|
|
|
|
* File paths passed as parameters when using this API shall be well formed UNIX-style,
|
|
|
|
|
* using "/" (unquoted forward slash) as directory separator regardless of the platform's native separator.
|
|
|
|
|
* Paths shall also include at least one forward slash ("game.bin" is an invalid path, use "./game.bin" instead).
|
|
|
|
|
* Other than the directory separator, cores shall not make assumptions about path format:
|
|
|
|
|
* "C:/path/game.bin", "http://example.com/game.bin", "#game/game.bin", "./game.bin" (without quotes) are all valid paths.
|
|
|
|
|
* Cores may replace the basename or remove path components from the end, and/or add new components;
|
|
|
|
|
* however, cores shall not append "./", "../" or multiple consecutive forward slashes ("//") to paths they request to front end.
|
|
|
|
|
* The frontend is encouraged to make such paths work as well as it can, but is allowed to give up if the core alters paths too much.
|
|
|
|
|
* Frontends are encouraged, but not required, to support native file system paths (modulo replacing the directory separator, if applicable).
|
|
|
|
|
* Cores are allowed to try using them, but must remain functional if the front rejects such requests.
|
|
|
|
|
* Cores are encouraged to use the libretro-common filestream functions for file I/O,
|
|
|
|
|
* as they seamlessly integrate with VFS, deal with directory separator replacement as appropriate
|
|
|
|
|
* and provide platform-specific fallbacks in cases where front ends do not support VFS. */
|
|
|
|
|
|
|
|
|
|
/* Opaque file handle
|
|
|
|
|
* Introduced in VFS API v1 */
|
|
|
|
|
struct retro_vfs_file_handle;
|
|
|
|
|
|
|
|
|
|
/* Opaque directory handle
|
|
|
|
|
* Introduced in VFS API v3 */
|
|
|
|
|
struct retro_vfs_dir_handle;
|
|
|
|
|
|
|
|
|
|
/* File open flags
|
|
|
|
|
* Introduced in VFS API v1 */
|
|
|
|
|
#define RETRO_VFS_FILE_ACCESS_READ (1 << 0) /* Read only mode */
|
|
|
|
|
#define RETRO_VFS_FILE_ACCESS_WRITE (1 << 1) /* Write only mode, discard contents and overwrites existing file unless RETRO_VFS_FILE_ACCESS_UPDATE is also specified */
|
|
|
|
|
#define RETRO_VFS_FILE_ACCESS_READ_WRITE (RETRO_VFS_FILE_ACCESS_READ | RETRO_VFS_FILE_ACCESS_WRITE) /* Read-write mode, discard contents and overwrites existing file unless RETRO_VFS_FILE_ACCESS_UPDATE is also specified*/
|
|
|
|
|
#define RETRO_VFS_FILE_ACCESS_UPDATE_EXISTING (1 << 2) /* Prevents discarding content of existing files opened for writing */
|
|
|
|
|
|
|
|
|
|
/* These are only hints. The frontend may choose to ignore them. Other than RAM/CPU/etc use,
|
|
|
|
|
and how they react to unlikely external interference (for example someone else writing to that file,
|
|
|
|
|
or the file's server going down), behavior will not change. */
|
|
|
|
|
#define RETRO_VFS_FILE_ACCESS_HINT_NONE (0)
|
|
|
|
|
/* Indicate that the file will be accessed many times. The frontend should aggressively cache everything. */
|
|
|
|
|
#define RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS (1 << 0)
|
|
|
|
|
|
|
|
|
|
/* Seek positions */
|
|
|
|
|
#define RETRO_VFS_SEEK_POSITION_START 0
|
|
|
|
|
#define RETRO_VFS_SEEK_POSITION_CURRENT 1
|
|
|
|
|
#define RETRO_VFS_SEEK_POSITION_END 2
|
|
|
|
|
|
|
|
|
|
/* stat() result flags
|
|
|
|
|
* Introduced in VFS API v3 */
|
|
|
|
|
#define RETRO_VFS_STAT_IS_VALID (1 << 0)
|
|
|
|
|
#define RETRO_VFS_STAT_IS_DIRECTORY (1 << 1)
|
|
|
|
|
#define RETRO_VFS_STAT_IS_CHARACTER_SPECIAL (1 << 2)
|
|
|
|
|
|
|
|
|
|
/* Get path from opaque handle. Returns the exact same path passed to file_open when getting the handle
|
|
|
|
|
* Introduced in VFS API v1 */
|
|
|
|
|
typedef const char *(RETRO_CALLCONV *retro_vfs_get_path_t)(struct retro_vfs_file_handle *stream);
|
|
|
|
|
|
|
|
|
|
/* Open a file for reading or writing. If path points to a directory, this will
|
|
|
|
|
* fail. Returns the opaque file handle, or NULL for error.
|
|
|
|
|
* Introduced in VFS API v1 */
|
|
|
|
|
typedef struct retro_vfs_file_handle *(RETRO_CALLCONV *retro_vfs_open_t)(const char *path, unsigned mode, unsigned hints);
|
|
|
|
|
|
|
|
|
|
/* Close the file and release its resources. Must be called if open_file returns non-NULL. Returns 0 on success, -1 on failure.
|
|
|
|
|
* Whether the call succeeds ot not, the handle passed as parameter becomes invalid and should no longer be used.
|
|
|
|
|
* Introduced in VFS API v1 */
|
|
|
|
|
typedef int (RETRO_CALLCONV *retro_vfs_close_t)(struct retro_vfs_file_handle *stream);
|
|
|
|
|
|
|
|
|
|
/* Return the size of the file in bytes, or -1 for error.
|
|
|
|
|
* Introduced in VFS API v1 */
|
|
|
|
|
typedef int64_t (RETRO_CALLCONV *retro_vfs_size_t)(struct retro_vfs_file_handle *stream);
|
|
|
|
|
|
|
|
|
|
/* Truncate file to specified size. Returns 0 on success or -1 on error
|
|
|
|
|
* Introduced in VFS API v2 */
|
|
|
|
|
typedef int64_t (RETRO_CALLCONV *retro_vfs_truncate_t)(struct retro_vfs_file_handle *stream, int64_t length);
|
|
|
|
|
|
|
|
|
|
/* Get the current read / write position for the file. Returns -1 for error.
|
|
|
|
|
* Introduced in VFS API v1 */
|
|
|
|
|
typedef int64_t (RETRO_CALLCONV *retro_vfs_tell_t)(struct retro_vfs_file_handle *stream);
|
|
|
|
|
|
|
|
|
|
/* Set the current read/write position for the file. Returns the new position, -1 for error.
|
|
|
|
|
* Introduced in VFS API v1 */
|
|
|
|
|
typedef int64_t (RETRO_CALLCONV *retro_vfs_seek_t)(struct retro_vfs_file_handle *stream, int64_t offset, int seek_position);
|
|
|
|
|
|
|
|
|
|
/* Read data from a file. Returns the number of bytes read, or -1 for error.
|
|
|
|
|
* Introduced in VFS API v1 */
|
|
|
|
|
typedef int64_t (RETRO_CALLCONV *retro_vfs_read_t)(struct retro_vfs_file_handle *stream, void *s, uint64_t len);
|
|
|
|
|
|
|
|
|
|
/* Write data to a file. Returns the number of bytes written, or -1 for error.
|
|
|
|
|
* Introduced in VFS API v1 */
|
|
|
|
|
typedef int64_t (RETRO_CALLCONV *retro_vfs_write_t)(struct retro_vfs_file_handle *stream, const void *s, uint64_t len);
|
|
|
|
|
|
|
|
|
|
/* Flush pending writes to file, if using buffered IO. Returns 0 on sucess, or -1 on failure.
|
|
|
|
|
* Introduced in VFS API v1 */
|
|
|
|
|
typedef int (RETRO_CALLCONV *retro_vfs_flush_t)(struct retro_vfs_file_handle *stream);
|
|
|
|
|
|
|
|
|
|
/* Delete the specified file. Returns 0 on success, -1 on failure
|
|
|
|
|
* Introduced in VFS API v1 */
|
|
|
|
|
typedef int (RETRO_CALLCONV *retro_vfs_remove_t)(const char *path);
|
|
|
|
|
|
|
|
|
|
/* Rename the specified file. Returns 0 on success, -1 on failure
|
|
|
|
|
* Introduced in VFS API v1 */
|
|
|
|
|
typedef int (RETRO_CALLCONV *retro_vfs_rename_t)(const char *old_path, const char *new_path);
|
|
|
|
|
|
|
|
|
|
/* Stat the specified file. Retruns a bitmask of RETRO_VFS_STAT_* flags, none are set if path was not valid.
|
|
|
|
|
* Additionally stores file size in given variable, unless NULL is given.
|
|
|
|
|
* Introduced in VFS API v3 */
|
|
|
|
|
typedef int (RETRO_CALLCONV *retro_vfs_stat_t)(const char *path, int32_t *size);
|
|
|
|
|
|
|
|
|
|
/* Create the specified directory. Returns 0 on success, -1 on unknown failure, -2 if already exists.
|
|
|
|
|
* Introduced in VFS API v3 */
|
|
|
|
|
typedef int (RETRO_CALLCONV *retro_vfs_mkdir_t)(const char *dir);
|
|
|
|
|
|
|
|
|
|
/* Open the specified directory for listing. Returns the opaque dir handle, or NULL for error.
|
|
|
|
|
* Support for the include_hidden argument may vary depending on the platform.
|
|
|
|
|
* Introduced in VFS API v3 */
|
|
|
|
|
typedef struct retro_vfs_dir_handle *(RETRO_CALLCONV *retro_vfs_opendir_t)(const char *dir, bool include_hidden);
|
|
|
|
|
|
|
|
|
|
/* Read the directory entry at the current position, and move the read pointer to the next position.
|
|
|
|
|
* Returns true on success, false if already on the last entry.
|
|
|
|
|
* Introduced in VFS API v3 */
|
|
|
|
|
typedef bool (RETRO_CALLCONV *retro_vfs_readdir_t)(struct retro_vfs_dir_handle *dirstream);
|
|
|
|
|
|
|
|
|
|
/* Get the name of the last entry read. Returns a string on success, or NULL for error.
|
|
|
|
|
* The returned string pointer is valid until the next call to readdir or closedir.
|
|
|
|
|
* Introduced in VFS API v3 */
|
|
|
|
|
typedef const char *(RETRO_CALLCONV *retro_vfs_dirent_get_name_t)(struct retro_vfs_dir_handle *dirstream);
|
|
|
|
|
|
|
|
|
|
/* Check if the last entry read was a directory. Returns true if it was, false otherwise (or on error).
|
|
|
|
|
* Introduced in VFS API v3 */
|
|
|
|
|
typedef bool (RETRO_CALLCONV *retro_vfs_dirent_is_dir_t)(struct retro_vfs_dir_handle *dirstream);
|
|
|
|
|
|
|
|
|
|
/* Close the directory and release its resources. Must be called if opendir returns non-NULL. Returns 0 on success, -1 on failure.
|
|
|
|
|
* Whether the call succeeds ot not, the handle passed as parameter becomes invalid and should no longer be used.
|
|
|
|
|
* Introduced in VFS API v3 */
|
|
|
|
|
typedef int (RETRO_CALLCONV *retro_vfs_closedir_t)(struct retro_vfs_dir_handle *dirstream);
|
|
|
|
|
|
|
|
|
|
struct retro_vfs_interface
|
|
|
|
|
{
|
|
|
|
|
/* VFS API v1 */
|
|
|
|
|
retro_vfs_get_path_t get_path;
|
|
|
|
|
retro_vfs_open_t open;
|
|
|
|
|
retro_vfs_close_t close;
|
|
|
|
|
retro_vfs_size_t size;
|
|
|
|
|
retro_vfs_tell_t tell;
|
|
|
|
|
retro_vfs_seek_t seek;
|
|
|
|
|
retro_vfs_read_t read;
|
|
|
|
|
retro_vfs_write_t write;
|
|
|
|
|
retro_vfs_flush_t flush;
|
|
|
|
|
retro_vfs_remove_t remove;
|
|
|
|
|
retro_vfs_rename_t rename;
|
|
|
|
|
/* VFS API v2 */
|
|
|
|
|
retro_vfs_truncate_t truncate;
|
|
|
|
|
/* VFS API v3 */
|
|
|
|
|
retro_vfs_stat_t stat;
|
|
|
|
|
retro_vfs_mkdir_t mkdir;
|
|
|
|
|
retro_vfs_opendir_t opendir;
|
|
|
|
|
retro_vfs_readdir_t readdir;
|
|
|
|
|
retro_vfs_dirent_get_name_t dirent_get_name;
|
|
|
|
|
retro_vfs_dirent_is_dir_t dirent_is_dir;
|
|
|
|
|
retro_vfs_closedir_t closedir;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
struct retro_vfs_interface_info
|
|
|
|
|
{
|
|
|
|
|
/* Set by core: should this be higher than the version the front end supports,
|
|
|
|
|
* front end will return false in the RETRO_ENVIRONMENT_GET_VFS_INTERFACE call
|
|
|
|
|
* Introduced in VFS API v1 */
|
|
|
|
|
uint32_t required_interface_version;
|
|
|
|
|
|
|
|
|
|
/* Frontend writes interface pointer here. The frontend also sets the actual
|
|
|
|
|
* version, must be at least required_interface_version.
|
|
|
|
|
* Introduced in VFS API v1 */
|
|
|
|
|
struct retro_vfs_interface *iface;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
enum retro_hw_render_interface_type
|
|
|
|
|
{
|
|
|
|
|
RETRO_HW_RENDER_INTERFACE_VULKAN = 0,
|
|
|
|
|
RETRO_HW_RENDER_INTERFACE_D3D9 = 1,
|
|
|
|
|
RETRO_HW_RENDER_INTERFACE_D3D10 = 2,
|
|
|
|
|
RETRO_HW_RENDER_INTERFACE_D3D11 = 3,
|
|
|
|
|
RETRO_HW_RENDER_INTERFACE_D3D12 = 4,
|
|
|
|
|
RETRO_HW_RENDER_INTERFACE_GSKIT_PS2 = 5,
|
|
|
|
|
RETRO_HW_RENDER_INTERFACE_DUMMY = INT_MAX
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Base struct. All retro_hw_render_interface_* types
|
|
|
|
|
* contain at least these fields. */
|
|
|
|
|
struct retro_hw_render_interface
|
|
|
|
|
{
|
|
|
|
|
enum retro_hw_render_interface_type interface_type;
|
|
|
|
|
unsigned interface_version;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
typedef void (RETRO_CALLCONV *retro_set_led_state_t)(int led, int state);
|
|
|
|
|
struct retro_led_interface
|
|
|
|
|
{
|
|
|
|
|
retro_set_led_state_t set_led_state;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Retrieves the current state of the MIDI input.
|
|
|
|
|
* Returns true if it's enabled, false otherwise. */
|
|
|
|
|
typedef bool (RETRO_CALLCONV *retro_midi_input_enabled_t)(void);
|
|
|
|
|
|
|
|
|
|
/* Retrieves the current state of the MIDI output.
|
|
|
|
|
* Returns true if it's enabled, false otherwise */
|
|
|
|
|
typedef bool (RETRO_CALLCONV *retro_midi_output_enabled_t)(void);
|
|
|
|
|
|
|
|
|
|
/* Reads next byte from the input stream.
|
|
|
|
|
* Returns true if byte is read, false otherwise. */
|
|
|
|
|
typedef bool (RETRO_CALLCONV *retro_midi_read_t)(uint8_t *byte);
|
|
|
|
|
|
|
|
|
|
/* Writes byte to the output stream.
|
|
|
|
|
* 'delta_time' is in microseconds and represent time elapsed since previous write.
|
|
|
|
|
* Returns true if byte is written, false otherwise. */
|
|
|
|
|
typedef bool (RETRO_CALLCONV *retro_midi_write_t)(uint8_t byte, uint32_t delta_time);
|
|
|
|
|
|
|
|
|
|
/* Flushes previously written data.
|
|
|
|
|
* Returns true if successful, false otherwise. */
|
|
|
|
|
typedef bool (RETRO_CALLCONV *retro_midi_flush_t)(void);
|
|
|
|
|
|
|
|
|
|
struct retro_midi_interface
|
|
|
|
|
{
|
|
|
|
|
retro_midi_input_enabled_t input_enabled;
|
|
|
|
|
retro_midi_output_enabled_t output_enabled;
|
|
|
|
|
retro_midi_read_t read;
|
|
|
|
|
retro_midi_write_t write;
|
|
|
|
|
retro_midi_flush_t flush;
|
|
|
|
|
};
|
2017-04-20 19:03:52 +00:00
|
|
|
|
|
|
|
|
enum retro_hw_render_context_negotiation_interface_type
|
|
|
|
|
{
|
|
|
|
|
RETRO_HW_RENDER_CONTEXT_NEGOTIATION_INTERFACE_VULKAN = 0,
|
|
|
|
|
RETRO_HW_RENDER_CONTEXT_NEGOTIATION_INTERFACE_DUMMY = INT_MAX
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Base struct. All retro_hw_render_context_negotiation_interface_* types
|
|
|
|
|
* contain at least these fields. */
|
|
|
|
|
struct retro_hw_render_context_negotiation_interface
|
|
|
|
|
{
|
|
|
|
|
enum retro_hw_render_context_negotiation_interface_type interface_type;
|
|
|
|
|
unsigned interface_version;
|
|
|
|
|
};
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Serialized state is incomplete in some way. Set if serialization is
|
|
|
|
|
* usable in typical end-user cases but should not be relied upon to
|
|
|
|
|
* implement frame-sensitive frontend features such as netplay or
|
|
|
|
|
* rerecording. */
|
|
|
|
|
#define RETRO_SERIALIZATION_QUIRK_INCOMPLETE (1 << 0)
|
|
|
|
|
/* The core must spend some time initializing before serialization is
|
|
|
|
|
* supported. retro_serialize() will initially fail; retro_unserialize()
|
|
|
|
|
* and retro_serialize_size() may or may not work correctly either. */
|
|
|
|
|
#define RETRO_SERIALIZATION_QUIRK_MUST_INITIALIZE (1 << 1)
|
|
|
|
|
/* Serialization size may change within a session. */
|
|
|
|
|
#define RETRO_SERIALIZATION_QUIRK_CORE_VARIABLE_SIZE (1 << 2)
|
|
|
|
|
/* Set by the frontend to acknowledge that it supports variable-sized
|
|
|
|
|
* states. */
|
|
|
|
|
#define RETRO_SERIALIZATION_QUIRK_FRONT_VARIABLE_SIZE (1 << 3)
|
|
|
|
|
/* Serialized state can only be loaded during the same session. */
|
|
|
|
|
#define RETRO_SERIALIZATION_QUIRK_SINGLE_SESSION (1 << 4)
|
|
|
|
|
/* Serialized state cannot be loaded on an architecture with a different
|
|
|
|
|
* endianness from the one it was saved on. */
|
|
|
|
|
#define RETRO_SERIALIZATION_QUIRK_ENDIAN_DEPENDENT (1 << 5)
|
|
|
|
|
/* Serialized state cannot be loaded on a different platform from the one it
|
|
|
|
|
* was saved on for reasons other than endianness, such as word size
|
|
|
|
|
* dependence */
|
|
|
|
|
#define RETRO_SERIALIZATION_QUIRK_PLATFORM_DEPENDENT (1 << 6)
|
|
|
|
|
|
|
|
|
|
#define RETRO_MEMDESC_CONST (1 << 0) /* The frontend will never change this memory area once retro_load_game has returned. */
|
|
|
|
|
#define RETRO_MEMDESC_BIGENDIAN (1 << 1) /* The memory area contains big endian data. Default is little endian. */
|
|
|
|
|
#define RETRO_MEMDESC_SYSTEM_RAM (1 << 2) /* The memory area is system RAM. This is main RAM of the gaming system. */
|
|
|
|
|
#define RETRO_MEMDESC_SAVE_RAM (1 << 3) /* The memory area is save RAM. This RAM is usually found on a game cartridge, backed up by a battery. */
|
|
|
|
|
#define RETRO_MEMDESC_VIDEO_RAM (1 << 4) /* The memory area is video RAM (VRAM) */
|
|
|
|
|
#define RETRO_MEMDESC_ALIGN_2 (1 << 16) /* All memory access in this area is aligned to their own size, or 2, whichever is smaller. */
|
|
|
|
|
#define RETRO_MEMDESC_ALIGN_4 (2 << 16)
|
|
|
|
|
#define RETRO_MEMDESC_ALIGN_8 (3 << 16)
|
|
|
|
|
#define RETRO_MEMDESC_MINSIZE_2 (1 << 24) /* All memory in this region is accessed at least 2 bytes at the time. */
|
|
|
|
|
#define RETRO_MEMDESC_MINSIZE_4 (2 << 24)
|
|
|
|
|
#define RETRO_MEMDESC_MINSIZE_8 (3 << 24)
|
2017-04-20 19:03:52 +00:00
|
|
|
struct retro_memory_descriptor
|
|
|
|
|
{
|
|
|
|
|
uint64_t flags;
|
|
|
|
|
|
|
|
|
|
/* Pointer to the start of the relevant ROM or RAM chip.
|
2020-10-10 17:14:10 +00:00
|
|
|
* It's strongly recommended to use 'offset' if possible, rather than
|
2017-04-20 19:03:52 +00:00
|
|
|
* doing math on the pointer.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* If the same byte is mapped my multiple descriptors, their descriptors
|
2017-04-20 19:03:52 +00:00
|
|
|
* must have the same pointer.
|
2020-10-10 17:14:10 +00:00
|
|
|
* If 'start' does not point to the first byte in the pointer, put the
|
2017-04-20 19:03:52 +00:00
|
|
|
* difference in 'offset' instead.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* May be NULL if there's nothing usable here (e.g. hardware registers and
|
2017-04-20 19:03:52 +00:00
|
|
|
* open bus). No flags should be set if the pointer is NULL.
|
|
|
|
|
* It's recommended to minimize the number of descriptors if possible,
|
|
|
|
|
* but not mandatory. */
|
|
|
|
|
void *ptr;
|
|
|
|
|
size_t offset;
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* This is the location in the emulated address space
|
2017-04-20 19:03:52 +00:00
|
|
|
* where the mapping starts. */
|
|
|
|
|
size_t start;
|
|
|
|
|
|
|
|
|
|
/* Which bits must be same as in 'start' for this mapping to apply.
|
2020-10-10 17:14:10 +00:00
|
|
|
* The first memory descriptor to claim a certain byte is the one
|
2017-04-20 19:03:52 +00:00
|
|
|
* that applies.
|
|
|
|
|
* A bit which is set in 'start' must also be set in this.
|
2020-10-10 17:14:10 +00:00
|
|
|
* Can be zero, in which case each byte is assumed mapped exactly once.
|
2017-04-20 19:03:52 +00:00
|
|
|
* In this case, 'len' must be a power of two. */
|
|
|
|
|
size_t select;
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* If this is nonzero, the set bits are assumed not connected to the
|
2017-04-20 19:03:52 +00:00
|
|
|
* memory chip's address pins. */
|
|
|
|
|
size_t disconnect;
|
|
|
|
|
|
|
|
|
|
/* This one tells the size of the current memory area.
|
2020-10-10 17:14:10 +00:00
|
|
|
* If, after start+disconnect are applied, the address is higher than
|
2017-04-20 19:03:52 +00:00
|
|
|
* this, the highest bit of the address is cleared.
|
|
|
|
|
*
|
|
|
|
|
* If the address is still too high, the next highest bit is cleared.
|
2020-10-10 17:14:10 +00:00
|
|
|
* Can be zero, in which case it's assumed to be infinite (as limited
|
2017-04-20 19:03:52 +00:00
|
|
|
* by 'select' and 'disconnect'). */
|
|
|
|
|
size_t len;
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* To go from emulated address to physical address, the following
|
2017-04-20 19:03:52 +00:00
|
|
|
* order applies:
|
|
|
|
|
* Subtract 'start', pick off 'disconnect', apply 'len', add 'offset'. */
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* The address space name must consist of only a-zA-Z0-9_-,
|
2017-04-20 19:03:52 +00:00
|
|
|
* should be as short as feasible (maximum length is 8 plus the NUL),
|
2020-10-10 17:14:10 +00:00
|
|
|
* and may not be any other address space plus one or more 0-9A-F
|
2017-04-20 19:03:52 +00:00
|
|
|
* at the end.
|
2020-10-10 17:14:10 +00:00
|
|
|
* However, multiple memory descriptors for the same address space is
|
|
|
|
|
* allowed, and the address space name can be empty. NULL is treated
|
2017-04-20 19:03:52 +00:00
|
|
|
* as empty.
|
|
|
|
|
*
|
|
|
|
|
* Address space names are case sensitive, but avoid lowercase if possible.
|
|
|
|
|
* The same pointer may exist in multiple address spaces.
|
|
|
|
|
*
|
|
|
|
|
* Examples:
|
|
|
|
|
* blank+blank - valid (multiple things may be mapped in the same namespace)
|
|
|
|
|
* 'Sp'+'Sp' - valid (multiple things may be mapped in the same namespace)
|
|
|
|
|
* 'A'+'B' - valid (neither is a prefix of each other)
|
|
|
|
|
* 'S'+blank - valid ('S' is not in 0-9A-F)
|
|
|
|
|
* 'a'+blank - valid ('a' is not in 0-9A-F)
|
|
|
|
|
* 'a'+'A' - valid (neither is a prefix of each other)
|
|
|
|
|
* 'AR'+blank - valid ('R' is not in 0-9A-F)
|
2020-10-10 17:14:10 +00:00
|
|
|
* 'ARB'+blank - valid (the B can't be part of the address either, because
|
2017-04-20 19:03:52 +00:00
|
|
|
* there is no namespace 'AR')
|
2020-10-10 17:14:10 +00:00
|
|
|
* blank+'B' - not valid, because it's ambigous which address space B1234
|
2017-04-20 19:03:52 +00:00
|
|
|
* would refer to.
|
2020-10-10 17:14:10 +00:00
|
|
|
* The length can't be used for that purpose; the frontend may want
|
2017-04-20 19:03:52 +00:00
|
|
|
* to append arbitrary data to an address, without a separator. */
|
|
|
|
|
const char *addrspace;
|
|
|
|
|
|
|
|
|
|
/* TODO: When finalizing this one, add a description field, which should be
|
|
|
|
|
* "WRAM" or something roughly equally long. */
|
|
|
|
|
|
|
|
|
|
/* TODO: When finalizing this one, replace 'select' with 'limit', which tells
|
|
|
|
|
* which bits can vary and still refer to the same address (limit = ~select).
|
|
|
|
|
* TODO: limit? range? vary? something else? */
|
|
|
|
|
|
|
|
|
|
/* TODO: When finalizing this one, if 'len' is above what 'select' (or
|
|
|
|
|
* 'limit') allows, it's bankswitched. Bankswitched data must have both 'len'
|
|
|
|
|
* and 'select' != 0, and the mappings don't tell how the system switches the
|
|
|
|
|
* banks. */
|
|
|
|
|
|
|
|
|
|
/* TODO: When finalizing this one, fix the 'len' bit removal order.
|
|
|
|
|
* For len=0x1800, pointer 0x1C00 should go to 0x1400, not 0x0C00.
|
|
|
|
|
* Algorithm: Take bits highest to lowest, but if it goes above len, clear
|
|
|
|
|
* the most recent addition and continue on the next bit.
|
|
|
|
|
* TODO: Can the above be optimized? Is "remove the lowest bit set in both
|
|
|
|
|
* pointer and 'len'" equivalent? */
|
2020-10-10 17:14:10 +00:00
|
|
|
|
2017-04-20 19:03:52 +00:00
|
|
|
/* TODO: Some emulators (MAME?) emulate big endian systems by only accessing
|
|
|
|
|
* the emulated memory in 32-bit chunks, native endian. But that's nothing
|
|
|
|
|
* compared to Darek Mihocka <http://www.emulators.com/docs/nx07_vm101.htm>
|
|
|
|
|
* (section Emulation 103 - Nearly Free Byte Reversal) - he flips the ENTIRE
|
|
|
|
|
* RAM backwards! I'll want to represent both of those, via some flags.
|
2020-10-10 17:14:10 +00:00
|
|
|
*
|
2017-04-20 19:03:52 +00:00
|
|
|
* I suspect MAME either didn't think of that idea, or don't want the #ifdef.
|
|
|
|
|
* Not sure which, nor do I really care. */
|
2020-10-10 17:14:10 +00:00
|
|
|
|
2017-04-20 19:03:52 +00:00
|
|
|
/* TODO: Some of those flags are unused and/or don't really make sense. Clean
|
|
|
|
|
* them up. */
|
|
|
|
|
};
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* The frontend may use the largest value of 'start'+'select' in a
|
2017-04-20 19:03:52 +00:00
|
|
|
* certain namespace to infer the size of the address space.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* If the address space is larger than that, a mapping with .ptr=NULL
|
|
|
|
|
* should be at the end of the array, with .select set to all ones for
|
2017-04-20 19:03:52 +00:00
|
|
|
* as long as the address space is big.
|
|
|
|
|
*
|
|
|
|
|
* Sample descriptors (minus .ptr, and RETRO_MEMFLAG_ on the flags):
|
|
|
|
|
* SNES WRAM:
|
|
|
|
|
* .start=0x7E0000, .len=0x20000
|
2020-10-10 17:14:10 +00:00
|
|
|
* (Note that this must be mapped before the ROM in most cases; some of the
|
|
|
|
|
* ROM mappers
|
2017-04-20 19:03:52 +00:00
|
|
|
* try to claim $7E0000, or at least $7E8000.)
|
|
|
|
|
* SNES SPC700 RAM:
|
|
|
|
|
* .addrspace="S", .len=0x10000
|
|
|
|
|
* SNES WRAM mirrors:
|
|
|
|
|
* .flags=MIRROR, .start=0x000000, .select=0xC0E000, .len=0x2000
|
|
|
|
|
* .flags=MIRROR, .start=0x800000, .select=0xC0E000, .len=0x2000
|
|
|
|
|
* SNES WRAM mirrors, alternate equivalent descriptor:
|
|
|
|
|
* .flags=MIRROR, .select=0x40E000, .disconnect=~0x1FFF
|
2020-10-10 17:14:10 +00:00
|
|
|
* (Various similar constructions can be created by combining parts of
|
2017-04-20 19:03:52 +00:00
|
|
|
* the above two.)
|
|
|
|
|
* SNES LoROM (512KB, mirrored a couple of times):
|
|
|
|
|
* .flags=CONST, .start=0x008000, .select=0x408000, .disconnect=0x8000, .len=512*1024
|
|
|
|
|
* .flags=CONST, .start=0x400000, .select=0x400000, .disconnect=0x8000, .len=512*1024
|
|
|
|
|
* SNES HiROM (4MB):
|
|
|
|
|
* .flags=CONST, .start=0x400000, .select=0x400000, .len=4*1024*1024
|
|
|
|
|
* .flags=CONST, .offset=0x8000, .start=0x008000, .select=0x408000, .len=4*1024*1024
|
|
|
|
|
* SNES ExHiROM (8MB):
|
|
|
|
|
* .flags=CONST, .offset=0, .start=0xC00000, .select=0xC00000, .len=4*1024*1024
|
|
|
|
|
* .flags=CONST, .offset=4*1024*1024, .start=0x400000, .select=0xC00000, .len=4*1024*1024
|
|
|
|
|
* .flags=CONST, .offset=0x8000, .start=0x808000, .select=0xC08000, .len=4*1024*1024
|
|
|
|
|
* .flags=CONST, .offset=4*1024*1024+0x8000, .start=0x008000, .select=0xC08000, .len=4*1024*1024
|
|
|
|
|
* Clarify the size of the address space:
|
|
|
|
|
* .ptr=NULL, .select=0xFFFFFF
|
|
|
|
|
* .len can be implied by .select in many of them, but was included for clarity.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
struct retro_memory_map
|
|
|
|
|
{
|
|
|
|
|
const struct retro_memory_descriptor *descriptors;
|
|
|
|
|
unsigned num_descriptors;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
struct retro_controller_description
|
|
|
|
|
{
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Human-readable description of the controller. Even if using a generic
|
|
|
|
|
* input device type, this can be set to the particular device type the
|
2017-04-20 19:03:52 +00:00
|
|
|
* core uses. */
|
|
|
|
|
const char *desc;
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Device type passed to retro_set_controller_port_device(). If the device
|
|
|
|
|
* type is a sub-class of a generic input device type, use the
|
2017-04-20 19:03:52 +00:00
|
|
|
* RETRO_DEVICE_SUBCLASS macro to create an ID.
|
|
|
|
|
*
|
|
|
|
|
* E.g. RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_JOYPAD, 1). */
|
|
|
|
|
unsigned id;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
struct retro_controller_info
|
|
|
|
|
{
|
|
|
|
|
const struct retro_controller_description *types;
|
|
|
|
|
unsigned num_types;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
struct retro_subsystem_memory_info
|
|
|
|
|
{
|
|
|
|
|
/* The extension associated with a memory type, e.g. "psram". */
|
|
|
|
|
const char *extension;
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* The memory type for retro_get_memory(). This should be at
|
|
|
|
|
* least 0x100 to avoid conflict with standardized
|
2017-04-20 19:03:52 +00:00
|
|
|
* libretro memory types. */
|
|
|
|
|
unsigned type;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
struct retro_subsystem_rom_info
|
|
|
|
|
{
|
|
|
|
|
/* Describes what the content is (SGB BIOS, GB ROM, etc). */
|
|
|
|
|
const char *desc;
|
|
|
|
|
|
|
|
|
|
/* Same definition as retro_get_system_info(). */
|
|
|
|
|
const char *valid_extensions;
|
|
|
|
|
|
|
|
|
|
/* Same definition as retro_get_system_info(). */
|
|
|
|
|
bool need_fullpath;
|
|
|
|
|
|
|
|
|
|
/* Same definition as retro_get_system_info(). */
|
|
|
|
|
bool block_extract;
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* This is set if the content is required to load a game.
|
2017-04-20 19:03:52 +00:00
|
|
|
* If this is set to false, a zeroed-out retro_game_info can be passed. */
|
|
|
|
|
bool required;
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Content can have multiple associated persistent
|
2017-04-20 19:03:52 +00:00
|
|
|
* memory types (retro_get_memory()). */
|
|
|
|
|
const struct retro_subsystem_memory_info *memory;
|
|
|
|
|
unsigned num_memory;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
struct retro_subsystem_info
|
|
|
|
|
{
|
|
|
|
|
/* Human-readable string of the subsystem type, e.g. "Super GameBoy" */
|
|
|
|
|
const char *desc;
|
|
|
|
|
|
|
|
|
|
/* A computer friendly short string identifier for the subsystem type.
|
|
|
|
|
* This name must be [a-z].
|
|
|
|
|
* E.g. if desc is "Super GameBoy", this can be "sgb".
|
|
|
|
|
* This identifier can be used for command-line interfaces, etc.
|
|
|
|
|
*/
|
|
|
|
|
const char *ident;
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Infos for each content file. The first entry is assumed to be the
|
2017-04-20 19:03:52 +00:00
|
|
|
* "most significant" content for frontend purposes.
|
2020-10-10 17:14:10 +00:00
|
|
|
* E.g. with Super GameBoy, the first content should be the GameBoy ROM,
|
2017-04-20 19:03:52 +00:00
|
|
|
* as it is the most "significant" content to a user.
|
2020-10-10 17:14:10 +00:00
|
|
|
* If a frontend creates new file paths based on the content used
|
2017-04-20 19:03:52 +00:00
|
|
|
* (e.g. savestates), it should use the path for the first ROM to do so. */
|
|
|
|
|
const struct retro_subsystem_rom_info *roms;
|
|
|
|
|
|
|
|
|
|
/* Number of content files associated with a subsystem. */
|
|
|
|
|
unsigned num_roms;
|
2020-10-10 17:14:10 +00:00
|
|
|
|
2017-04-20 19:03:52 +00:00
|
|
|
/* The type passed to retro_load_game_special(). */
|
|
|
|
|
unsigned id;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
typedef void (RETRO_CALLCONV *retro_proc_address_t)(void);
|
|
|
|
|
|
|
|
|
|
/* libretro API extension functions:
|
|
|
|
|
* (None here so far).
|
|
|
|
|
*
|
|
|
|
|
* Get a symbol from a libretro core.
|
2020-10-10 17:14:10 +00:00
|
|
|
* Cores should only return symbols which are actual
|
2017-04-20 19:03:52 +00:00
|
|
|
* extensions to the libretro API.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* Frontends should not use this to obtain symbols to standard
|
2017-04-20 19:03:52 +00:00
|
|
|
* libretro entry points (static linking or dlsym).
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* The symbol name must be equal to the function name,
|
2017-04-20 19:03:52 +00:00
|
|
|
* e.g. if void retro_foo(void); exists, the symbol must be called "retro_foo".
|
|
|
|
|
* The returned function pointer must be cast to the corresponding type.
|
|
|
|
|
*/
|
|
|
|
|
typedef retro_proc_address_t (RETRO_CALLCONV *retro_get_proc_address_t)(const char *sym);
|
|
|
|
|
|
|
|
|
|
struct retro_get_proc_address_interface
|
|
|
|
|
{
|
|
|
|
|
retro_get_proc_address_t get_proc_address;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
enum retro_log_level
|
|
|
|
|
{
|
|
|
|
|
RETRO_LOG_DEBUG = 0,
|
|
|
|
|
RETRO_LOG_INFO,
|
|
|
|
|
RETRO_LOG_WARN,
|
|
|
|
|
RETRO_LOG_ERROR,
|
|
|
|
|
|
|
|
|
|
RETRO_LOG_DUMMY = INT_MAX
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Logging function. Takes log level argument as well. */
|
|
|
|
|
typedef void (RETRO_CALLCONV *retro_log_printf_t)(enum retro_log_level level,
|
|
|
|
|
const char *fmt, ...);
|
|
|
|
|
|
|
|
|
|
struct retro_log_callback
|
|
|
|
|
{
|
|
|
|
|
retro_log_printf_t log;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Performance related functions */
|
|
|
|
|
|
|
|
|
|
/* ID values for SIMD CPU features */
|
|
|
|
|
#define RETRO_SIMD_SSE (1 << 0)
|
|
|
|
|
#define RETRO_SIMD_SSE2 (1 << 1)
|
|
|
|
|
#define RETRO_SIMD_VMX (1 << 2)
|
|
|
|
|
#define RETRO_SIMD_VMX128 (1 << 3)
|
|
|
|
|
#define RETRO_SIMD_AVX (1 << 4)
|
|
|
|
|
#define RETRO_SIMD_NEON (1 << 5)
|
|
|
|
|
#define RETRO_SIMD_SSE3 (1 << 6)
|
|
|
|
|
#define RETRO_SIMD_SSSE3 (1 << 7)
|
|
|
|
|
#define RETRO_SIMD_MMX (1 << 8)
|
|
|
|
|
#define RETRO_SIMD_MMXEXT (1 << 9)
|
|
|
|
|
#define RETRO_SIMD_SSE4 (1 << 10)
|
|
|
|
|
#define RETRO_SIMD_SSE42 (1 << 11)
|
|
|
|
|
#define RETRO_SIMD_AVX2 (1 << 12)
|
|
|
|
|
#define RETRO_SIMD_VFPU (1 << 13)
|
|
|
|
|
#define RETRO_SIMD_PS (1 << 14)
|
|
|
|
|
#define RETRO_SIMD_AES (1 << 15)
|
|
|
|
|
#define RETRO_SIMD_VFPV3 (1 << 16)
|
|
|
|
|
#define RETRO_SIMD_VFPV4 (1 << 17)
|
|
|
|
|
#define RETRO_SIMD_POPCNT (1 << 18)
|
|
|
|
|
#define RETRO_SIMD_MOVBE (1 << 19)
|
|
|
|
|
#define RETRO_SIMD_CMOV (1 << 20)
|
2020-10-10 17:14:10 +00:00
|
|
|
#define RETRO_SIMD_ASIMD (1 << 21)
|
2017-04-20 19:03:52 +00:00
|
|
|
|
|
|
|
|
typedef uint64_t retro_perf_tick_t;
|
|
|
|
|
typedef int64_t retro_time_t;
|
|
|
|
|
|
|
|
|
|
struct retro_perf_counter
|
|
|
|
|
{
|
|
|
|
|
const char *ident;
|
|
|
|
|
retro_perf_tick_t start;
|
|
|
|
|
retro_perf_tick_t total;
|
|
|
|
|
retro_perf_tick_t call_cnt;
|
|
|
|
|
|
|
|
|
|
bool registered;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Returns current time in microseconds.
|
|
|
|
|
* Tries to use the most accurate timer available.
|
|
|
|
|
*/
|
|
|
|
|
typedef retro_time_t (RETRO_CALLCONV *retro_perf_get_time_usec_t)(void);
|
|
|
|
|
|
|
|
|
|
/* A simple counter. Usually nanoseconds, but can also be CPU cycles.
|
2020-10-10 17:14:10 +00:00
|
|
|
* Can be used directly if desired (when creating a more sophisticated
|
2017-04-20 19:03:52 +00:00
|
|
|
* performance counter system).
|
|
|
|
|
* */
|
|
|
|
|
typedef retro_perf_tick_t (RETRO_CALLCONV *retro_perf_get_counter_t)(void);
|
|
|
|
|
|
|
|
|
|
/* Returns a bit-mask of detected CPU features (RETRO_SIMD_*). */
|
|
|
|
|
typedef uint64_t (RETRO_CALLCONV *retro_get_cpu_features_t)(void);
|
|
|
|
|
|
|
|
|
|
/* Asks frontend to log and/or display the state of performance counters.
|
|
|
|
|
* Performance counters can always be poked into manually as well.
|
|
|
|
|
*/
|
|
|
|
|
typedef void (RETRO_CALLCONV *retro_perf_log_t)(void);
|
|
|
|
|
|
|
|
|
|
/* Register a performance counter.
|
2020-10-10 17:14:10 +00:00
|
|
|
* ident field must be set with a discrete value and other values in
|
2017-04-20 19:03:52 +00:00
|
|
|
* retro_perf_counter must be 0.
|
2020-10-10 17:14:10 +00:00
|
|
|
* Registering can be called multiple times. To avoid calling to
|
2017-04-20 19:03:52 +00:00
|
|
|
* frontend redundantly, you can check registered field first. */
|
|
|
|
|
typedef void (RETRO_CALLCONV *retro_perf_register_t)(struct retro_perf_counter *counter);
|
|
|
|
|
|
|
|
|
|
/* Starts a registered counter. */
|
|
|
|
|
typedef void (RETRO_CALLCONV *retro_perf_start_t)(struct retro_perf_counter *counter);
|
|
|
|
|
|
|
|
|
|
/* Stops a registered counter. */
|
|
|
|
|
typedef void (RETRO_CALLCONV *retro_perf_stop_t)(struct retro_perf_counter *counter);
|
|
|
|
|
|
|
|
|
|
/* For convenience it can be useful to wrap register, start and stop in macros.
|
|
|
|
|
* E.g.:
|
|
|
|
|
* #ifdef LOG_PERFORMANCE
|
|
|
|
|
* #define RETRO_PERFORMANCE_INIT(perf_cb, name) static struct retro_perf_counter name = {#name}; if (!name.registered) perf_cb.perf_register(&(name))
|
|
|
|
|
* #define RETRO_PERFORMANCE_START(perf_cb, name) perf_cb.perf_start(&(name))
|
|
|
|
|
* #define RETRO_PERFORMANCE_STOP(perf_cb, name) perf_cb.perf_stop(&(name))
|
|
|
|
|
* #else
|
|
|
|
|
* ... Blank macros ...
|
|
|
|
|
* #endif
|
|
|
|
|
*
|
|
|
|
|
* These can then be used mid-functions around code snippets.
|
|
|
|
|
*
|
|
|
|
|
* extern struct retro_perf_callback perf_cb; * Somewhere in the core.
|
|
|
|
|
*
|
|
|
|
|
* void do_some_heavy_work(void)
|
|
|
|
|
* {
|
|
|
|
|
* RETRO_PERFORMANCE_INIT(cb, work_1;
|
|
|
|
|
* RETRO_PERFORMANCE_START(cb, work_1);
|
|
|
|
|
* heavy_work_1();
|
|
|
|
|
* RETRO_PERFORMANCE_STOP(cb, work_1);
|
|
|
|
|
*
|
|
|
|
|
* RETRO_PERFORMANCE_INIT(cb, work_2);
|
|
|
|
|
* RETRO_PERFORMANCE_START(cb, work_2);
|
|
|
|
|
* heavy_work_2();
|
|
|
|
|
* RETRO_PERFORMANCE_STOP(cb, work_2);
|
|
|
|
|
* }
|
|
|
|
|
*
|
|
|
|
|
* void retro_deinit(void)
|
|
|
|
|
* {
|
|
|
|
|
* perf_cb.perf_log(); * Log all perf counters here for example.
|
|
|
|
|
* }
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
struct retro_perf_callback
|
|
|
|
|
{
|
|
|
|
|
retro_perf_get_time_usec_t get_time_usec;
|
|
|
|
|
retro_get_cpu_features_t get_cpu_features;
|
|
|
|
|
|
|
|
|
|
retro_perf_get_counter_t get_perf_counter;
|
|
|
|
|
retro_perf_register_t perf_register;
|
|
|
|
|
retro_perf_start_t perf_start;
|
|
|
|
|
retro_perf_stop_t perf_stop;
|
|
|
|
|
retro_perf_log_t perf_log;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* FIXME: Document the sensor API and work out behavior.
|
|
|
|
|
* It will be marked as experimental until then.
|
|
|
|
|
*/
|
|
|
|
|
enum retro_sensor_action
|
|
|
|
|
{
|
|
|
|
|
RETRO_SENSOR_ACCELEROMETER_ENABLE = 0,
|
|
|
|
|
RETRO_SENSOR_ACCELEROMETER_DISABLE,
|
|
|
|
|
|
|
|
|
|
RETRO_SENSOR_DUMMY = INT_MAX
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Id values for SENSOR types. */
|
|
|
|
|
#define RETRO_SENSOR_ACCELEROMETER_X 0
|
|
|
|
|
#define RETRO_SENSOR_ACCELEROMETER_Y 1
|
|
|
|
|
#define RETRO_SENSOR_ACCELEROMETER_Z 2
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
typedef bool (RETRO_CALLCONV *retro_set_sensor_state_t)(unsigned port,
|
2017-04-20 19:03:52 +00:00
|
|
|
enum retro_sensor_action action, unsigned rate);
|
|
|
|
|
|
|
|
|
|
typedef float (RETRO_CALLCONV *retro_sensor_get_input_t)(unsigned port, unsigned id);
|
|
|
|
|
|
|
|
|
|
struct retro_sensor_interface
|
|
|
|
|
{
|
|
|
|
|
retro_set_sensor_state_t set_sensor_state;
|
|
|
|
|
retro_sensor_get_input_t get_sensor_input;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
enum retro_camera_buffer
|
|
|
|
|
{
|
|
|
|
|
RETRO_CAMERA_BUFFER_OPENGL_TEXTURE = 0,
|
|
|
|
|
RETRO_CAMERA_BUFFER_RAW_FRAMEBUFFER,
|
|
|
|
|
|
|
|
|
|
RETRO_CAMERA_BUFFER_DUMMY = INT_MAX
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Starts the camera driver. Can only be called in retro_run(). */
|
|
|
|
|
typedef bool (RETRO_CALLCONV *retro_camera_start_t)(void);
|
|
|
|
|
|
|
|
|
|
/* Stops the camera driver. Can only be called in retro_run(). */
|
|
|
|
|
typedef void (RETRO_CALLCONV *retro_camera_stop_t)(void);
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Callback which signals when the camera driver is initialized
|
2017-04-20 19:03:52 +00:00
|
|
|
* and/or deinitialized.
|
|
|
|
|
* retro_camera_start_t can be called in initialized callback.
|
|
|
|
|
*/
|
|
|
|
|
typedef void (RETRO_CALLCONV *retro_camera_lifetime_status_t)(void);
|
|
|
|
|
|
|
|
|
|
/* A callback for raw framebuffer data. buffer points to an XRGB8888 buffer.
|
|
|
|
|
* Width, height and pitch are similar to retro_video_refresh_t.
|
|
|
|
|
* First pixel is top-left origin.
|
|
|
|
|
*/
|
2020-10-10 17:14:10 +00:00
|
|
|
typedef void (RETRO_CALLCONV *retro_camera_frame_raw_framebuffer_t)(const uint32_t *buffer,
|
2017-04-20 19:03:52 +00:00
|
|
|
unsigned width, unsigned height, size_t pitch);
|
|
|
|
|
|
|
|
|
|
/* A callback for when OpenGL textures are used.
|
|
|
|
|
*
|
|
|
|
|
* texture_id is a texture owned by camera driver.
|
2020-10-10 17:14:10 +00:00
|
|
|
* Its state or content should be considered immutable, except for things like
|
2017-04-20 19:03:52 +00:00
|
|
|
* texture filtering and clamping.
|
|
|
|
|
*
|
|
|
|
|
* texture_target is the texture target for the GL texture.
|
2020-10-10 17:14:10 +00:00
|
|
|
* These can include e.g. GL_TEXTURE_2D, GL_TEXTURE_RECTANGLE, and possibly
|
2017-04-20 19:03:52 +00:00
|
|
|
* more depending on extensions.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* affine points to a packed 3x3 column-major matrix used to apply an affine
|
2017-04-20 19:03:52 +00:00
|
|
|
* transform to texture coordinates. (affine_matrix * vec3(coord_x, coord_y, 1.0))
|
2020-10-10 17:14:10 +00:00
|
|
|
* After transform, normalized texture coord (0, 0) should be bottom-left
|
2017-04-20 19:03:52 +00:00
|
|
|
* and (1, 1) should be top-right (or (width, height) for RECTANGLE).
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* GL-specific typedefs are avoided here to avoid relying on gl.h in
|
2017-04-20 19:03:52 +00:00
|
|
|
* the API definition.
|
|
|
|
|
*/
|
2020-10-10 17:14:10 +00:00
|
|
|
typedef void (RETRO_CALLCONV *retro_camera_frame_opengl_texture_t)(unsigned texture_id,
|
2017-04-20 19:03:52 +00:00
|
|
|
unsigned texture_target, const float *affine);
|
|
|
|
|
|
|
|
|
|
struct retro_camera_callback
|
|
|
|
|
{
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Set by libretro core.
|
2017-04-20 19:03:52 +00:00
|
|
|
* Example bitmask: caps = (1 << RETRO_CAMERA_BUFFER_OPENGL_TEXTURE) | (1 << RETRO_CAMERA_BUFFER_RAW_FRAMEBUFFER).
|
|
|
|
|
*/
|
2020-10-10 17:14:10 +00:00
|
|
|
uint64_t caps;
|
2017-04-20 19:03:52 +00:00
|
|
|
|
|
|
|
|
/* Desired resolution for camera. Is only used as a hint. */
|
|
|
|
|
unsigned width;
|
|
|
|
|
unsigned height;
|
|
|
|
|
|
|
|
|
|
/* Set by frontend. */
|
|
|
|
|
retro_camera_start_t start;
|
|
|
|
|
retro_camera_stop_t stop;
|
|
|
|
|
|
|
|
|
|
/* Set by libretro core if raw framebuffer callbacks will be used. */
|
|
|
|
|
retro_camera_frame_raw_framebuffer_t frame_raw_framebuffer;
|
|
|
|
|
|
|
|
|
|
/* Set by libretro core if OpenGL texture callbacks will be used. */
|
2020-10-10 17:14:10 +00:00
|
|
|
retro_camera_frame_opengl_texture_t frame_opengl_texture;
|
2017-04-20 19:03:52 +00:00
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Set by libretro core. Called after camera driver is initialized and
|
2017-04-20 19:03:52 +00:00
|
|
|
* ready to be started.
|
|
|
|
|
* Can be NULL, in which this callback is not called.
|
|
|
|
|
*/
|
|
|
|
|
retro_camera_lifetime_status_t initialized;
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Set by libretro core. Called right before camera driver is
|
2017-04-20 19:03:52 +00:00
|
|
|
* deinitialized.
|
|
|
|
|
* Can be NULL, in which this callback is not called.
|
|
|
|
|
*/
|
|
|
|
|
retro_camera_lifetime_status_t deinitialized;
|
|
|
|
|
};
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Sets the interval of time and/or distance at which to update/poll
|
2017-04-20 19:03:52 +00:00
|
|
|
* location-based data.
|
|
|
|
|
*
|
|
|
|
|
* To ensure compatibility with all location-based implementations,
|
|
|
|
|
* values for both interval_ms and interval_distance should be provided.
|
|
|
|
|
*
|
|
|
|
|
* interval_ms is the interval expressed in milliseconds.
|
|
|
|
|
* interval_distance is the distance interval expressed in meters.
|
|
|
|
|
*/
|
|
|
|
|
typedef void (RETRO_CALLCONV *retro_location_set_interval_t)(unsigned interval_ms,
|
|
|
|
|
unsigned interval_distance);
|
|
|
|
|
|
|
|
|
|
/* Start location services. The device will start listening for changes to the
|
2020-10-10 17:14:10 +00:00
|
|
|
* current location at regular intervals (which are defined with
|
2017-04-20 19:03:52 +00:00
|
|
|
* retro_location_set_interval_t). */
|
|
|
|
|
typedef bool (RETRO_CALLCONV *retro_location_start_t)(void);
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Stop location services. The device will stop listening for changes
|
2017-04-20 19:03:52 +00:00
|
|
|
* to the current location. */
|
|
|
|
|
typedef void (RETRO_CALLCONV *retro_location_stop_t)(void);
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Get the position of the current location. Will set parameters to
|
2017-04-20 19:03:52 +00:00
|
|
|
* 0 if no new location update has happened since the last time. */
|
|
|
|
|
typedef bool (RETRO_CALLCONV *retro_location_get_position_t)(double *lat, double *lon,
|
|
|
|
|
double *horiz_accuracy, double *vert_accuracy);
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Callback which signals when the location driver is initialized
|
2017-04-20 19:03:52 +00:00
|
|
|
* and/or deinitialized.
|
|
|
|
|
* retro_location_start_t can be called in initialized callback.
|
|
|
|
|
*/
|
|
|
|
|
typedef void (RETRO_CALLCONV *retro_location_lifetime_status_t)(void);
|
|
|
|
|
|
|
|
|
|
struct retro_location_callback
|
|
|
|
|
{
|
|
|
|
|
retro_location_start_t start;
|
|
|
|
|
retro_location_stop_t stop;
|
|
|
|
|
retro_location_get_position_t get_position;
|
|
|
|
|
retro_location_set_interval_t set_interval;
|
|
|
|
|
|
|
|
|
|
retro_location_lifetime_status_t initialized;
|
|
|
|
|
retro_location_lifetime_status_t deinitialized;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
enum retro_rumble_effect
|
|
|
|
|
{
|
|
|
|
|
RETRO_RUMBLE_STRONG = 0,
|
|
|
|
|
RETRO_RUMBLE_WEAK = 1,
|
|
|
|
|
|
|
|
|
|
RETRO_RUMBLE_DUMMY = INT_MAX
|
|
|
|
|
};
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Sets rumble state for joypad plugged in port 'port'.
|
2017-04-20 19:03:52 +00:00
|
|
|
* Rumble effects are controlled independently,
|
|
|
|
|
* and setting e.g. strong rumble does not override weak rumble.
|
|
|
|
|
* Strength has a range of [0, 0xffff].
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* Returns true if rumble state request was honored.
|
2017-04-20 19:03:52 +00:00
|
|
|
* Calling this before first retro_run() is likely to return false. */
|
2020-10-10 17:14:10 +00:00
|
|
|
typedef bool (RETRO_CALLCONV *retro_set_rumble_state_t)(unsigned port,
|
2017-04-20 19:03:52 +00:00
|
|
|
enum retro_rumble_effect effect, uint16_t strength);
|
|
|
|
|
|
|
|
|
|
struct retro_rumble_interface
|
|
|
|
|
{
|
|
|
|
|
retro_set_rumble_state_t set_rumble_state;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Notifies libretro that audio data should be written. */
|
|
|
|
|
typedef void (RETRO_CALLCONV *retro_audio_callback_t)(void);
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* True: Audio driver in frontend is active, and callback is
|
2017-04-20 19:03:52 +00:00
|
|
|
* expected to be called regularily.
|
2020-10-10 17:14:10 +00:00
|
|
|
* False: Audio driver in frontend is paused or inactive.
|
|
|
|
|
* Audio callback will not be called until set_state has been
|
2017-04-20 19:03:52 +00:00
|
|
|
* called with true.
|
|
|
|
|
* Initial state is false (inactive).
|
|
|
|
|
*/
|
|
|
|
|
typedef void (RETRO_CALLCONV *retro_audio_set_state_callback_t)(bool enabled);
|
|
|
|
|
|
|
|
|
|
struct retro_audio_callback
|
|
|
|
|
{
|
|
|
|
|
retro_audio_callback_t callback;
|
|
|
|
|
retro_audio_set_state_callback_t set_state;
|
|
|
|
|
};
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Notifies a libretro core of time spent since last invocation
|
2017-04-20 19:03:52 +00:00
|
|
|
* of retro_run() in microseconds.
|
|
|
|
|
*
|
|
|
|
|
* It will be called right before retro_run() every frame.
|
2020-10-10 17:14:10 +00:00
|
|
|
* The frontend can tamper with timing to support cases like
|
2017-04-20 19:03:52 +00:00
|
|
|
* fast-forward, slow-motion and framestepping.
|
|
|
|
|
*
|
|
|
|
|
* In those scenarios the reference frame time value will be used. */
|
|
|
|
|
typedef int64_t retro_usec_t;
|
|
|
|
|
typedef void (RETRO_CALLCONV *retro_frame_time_callback_t)(retro_usec_t usec);
|
|
|
|
|
struct retro_frame_time_callback
|
|
|
|
|
{
|
|
|
|
|
retro_frame_time_callback_t callback;
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Represents the time of one frame. It is computed as
|
|
|
|
|
* 1000000 / fps, but the implementation will resolve the
|
2017-04-20 19:03:52 +00:00
|
|
|
* rounding to ensure that framestepping, etc is exact. */
|
|
|
|
|
retro_usec_t reference;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Pass this to retro_video_refresh_t if rendering to hardware.
|
|
|
|
|
* Passing NULL to retro_video_refresh_t is still a frame dupe as normal.
|
|
|
|
|
* */
|
|
|
|
|
#define RETRO_HW_FRAME_BUFFER_VALID ((void*)-1)
|
|
|
|
|
|
|
|
|
|
/* Invalidates the current HW context.
|
|
|
|
|
* Any GL state is lost, and must not be deinitialized explicitly.
|
|
|
|
|
* If explicit deinitialization is desired by the libretro core,
|
|
|
|
|
* it should implement context_destroy callback.
|
|
|
|
|
* If called, all GPU resources must be reinitialized.
|
|
|
|
|
* Usually called when frontend reinits video driver.
|
2020-10-10 17:14:10 +00:00
|
|
|
* Also called first time video driver is initialized,
|
2017-04-20 19:03:52 +00:00
|
|
|
* allowing libretro core to initialize resources.
|
|
|
|
|
*/
|
|
|
|
|
typedef void (RETRO_CALLCONV *retro_hw_context_reset_t)(void);
|
|
|
|
|
|
|
|
|
|
/* Gets current framebuffer which is to be rendered to.
|
|
|
|
|
* Could change every frame potentially.
|
|
|
|
|
*/
|
|
|
|
|
typedef uintptr_t (RETRO_CALLCONV *retro_hw_get_current_framebuffer_t)(void);
|
|
|
|
|
|
|
|
|
|
/* Get a symbol from HW context. */
|
|
|
|
|
typedef retro_proc_address_t (RETRO_CALLCONV *retro_hw_get_proc_address_t)(const char *sym);
|
|
|
|
|
|
|
|
|
|
enum retro_hw_context_type
|
|
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|
|
{
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|
|
RETRO_HW_CONTEXT_NONE = 0,
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|
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|
|
/* OpenGL 2.x. Driver can choose to use latest compatibility context. */
|
2020-10-10 17:14:10 +00:00
|
|
|
RETRO_HW_CONTEXT_OPENGL = 1,
|
2017-04-20 19:03:52 +00:00
|
|
|
/* OpenGL ES 2.0. */
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|
|
RETRO_HW_CONTEXT_OPENGLES2 = 2,
|
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|
|
/* Modern desktop core GL context. Use version_major/
|
|
|
|
|
* version_minor fields to set GL version. */
|
|
|
|
|
RETRO_HW_CONTEXT_OPENGL_CORE = 3,
|
|
|
|
|
/* OpenGL ES 3.0 */
|
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|
|
RETRO_HW_CONTEXT_OPENGLES3 = 4,
|
|
|
|
|
/* OpenGL ES 3.1+. Set version_major/version_minor. For GLES2 and GLES3,
|
|
|
|
|
* use the corresponding enums directly. */
|
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|
|
|
RETRO_HW_CONTEXT_OPENGLES_VERSION = 5,
|
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|
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|
|
/* Vulkan, see RETRO_ENVIRONMENT_GET_HW_RENDER_INTERFACE. */
|
|
|
|
|
RETRO_HW_CONTEXT_VULKAN = 6,
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Direct3D, set version_major to select the type of interface
|
|
|
|
|
* returned by RETRO_ENVIRONMENT_GET_HW_RENDER_INTERFACE */
|
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|
|
RETRO_HW_CONTEXT_DIRECT3D = 7,
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|
|
2017-04-20 19:03:52 +00:00
|
|
|
RETRO_HW_CONTEXT_DUMMY = INT_MAX
|
|
|
|
|
};
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|
|
|
|
|
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|
|
|
struct retro_hw_render_callback
|
|
|
|
|
{
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|
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|
|
/* Which API to use. Set by libretro core. */
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|
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|
|
enum retro_hw_context_type context_type;
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|
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|
|
/* Called when a context has been created or when it has been reset.
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|
|
* An OpenGL context is only valid after context_reset() has been called.
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|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* When context_reset is called, OpenGL resources in the libretro
|
2017-04-20 19:03:52 +00:00
|
|
|
* implementation are guaranteed to be invalid.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* It is possible that context_reset is called multiple times during an
|
2017-04-20 19:03:52 +00:00
|
|
|
* application lifecycle.
|
|
|
|
|
* If context_reset is called without any notification (context_destroy),
|
|
|
|
|
* the OpenGL context was lost and resources should just be recreated
|
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|
|
* without any attempt to "free" old resources.
|
|
|
|
|
*/
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|
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|
|
retro_hw_context_reset_t context_reset;
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|
|
/* Set by frontend.
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|
|
|
* TODO: This is rather obsolete. The frontend should not
|
|
|
|
|
* be providing preallocated framebuffers. */
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|
|
retro_hw_get_current_framebuffer_t get_current_framebuffer;
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|
2020-10-10 17:14:10 +00:00
|
|
|
/* Set by frontend.
|
|
|
|
|
* Can return all relevant functions, including glClear on Windows. */
|
2017-04-20 19:03:52 +00:00
|
|
|
retro_hw_get_proc_address_t get_proc_address;
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|
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|
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|
|
/* Set if render buffers should have depth component attached.
|
|
|
|
|
* TODO: Obsolete. */
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|
|
|
|
bool depth;
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|
|
|
|
|
|
|
|
|
/* Set if stencil buffers should be attached.
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|
|
|
|
* TODO: Obsolete. */
|
|
|
|
|
bool stencil;
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* If depth and stencil are true, a packed 24/8 buffer will be added.
|
2017-04-20 19:03:52 +00:00
|
|
|
* Only attaching stencil is invalid and will be ignored. */
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Use conventional bottom-left origin convention. If false,
|
2017-04-20 19:03:52 +00:00
|
|
|
* standard libretro top-left origin semantics are used.
|
|
|
|
|
* TODO: Move to GL specific interface. */
|
|
|
|
|
bool bottom_left_origin;
|
2020-10-10 17:14:10 +00:00
|
|
|
|
2017-04-20 19:03:52 +00:00
|
|
|
/* Major version number for core GL context or GLES 3.1+. */
|
|
|
|
|
unsigned version_major;
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|
|
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|
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|
|
/* Minor version number for core GL context or GLES 3.1+. */
|
|
|
|
|
unsigned version_minor;
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* If this is true, the frontend will go very far to avoid
|
2017-04-20 19:03:52 +00:00
|
|
|
* resetting context in scenarios like toggling fullscreen, etc.
|
|
|
|
|
* TODO: Obsolete? Maybe frontend should just always assume this ...
|
|
|
|
|
*/
|
|
|
|
|
bool cache_context;
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* The reset callback might still be called in extreme situations
|
2017-04-20 19:03:52 +00:00
|
|
|
* such as if the context is lost beyond recovery.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* For optimal stability, set this to false, and allow context to be
|
2017-04-20 19:03:52 +00:00
|
|
|
* reset at any time.
|
|
|
|
|
*/
|
2020-10-10 17:14:10 +00:00
|
|
|
|
|
|
|
|
/* A callback to be called before the context is destroyed in a
|
2017-04-20 19:03:52 +00:00
|
|
|
* controlled way by the frontend. */
|
|
|
|
|
retro_hw_context_reset_t context_destroy;
|
|
|
|
|
|
|
|
|
|
/* OpenGL resources can be deinitialized cleanly at this step.
|
2020-10-10 17:14:10 +00:00
|
|
|
* context_destroy can be set to NULL, in which resources will
|
2017-04-20 19:03:52 +00:00
|
|
|
* just be destroyed without any notification.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* Even when context_destroy is non-NULL, it is possible that
|
2017-04-20 19:03:52 +00:00
|
|
|
* context_reset is called without any destroy notification.
|
2020-10-10 17:14:10 +00:00
|
|
|
* This happens if context is lost by external factors (such as
|
2017-04-20 19:03:52 +00:00
|
|
|
* notified by GL_ARB_robustness).
|
|
|
|
|
*
|
|
|
|
|
* In this case, the context is assumed to be already dead,
|
2020-10-10 17:14:10 +00:00
|
|
|
* and the libretro implementation must not try to free any OpenGL
|
2017-04-20 19:03:52 +00:00
|
|
|
* resources in the subsequent context_reset.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
/* Creates a debug context. */
|
|
|
|
|
bool debug_context;
|
|
|
|
|
};
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Callback type passed in RETRO_ENVIRONMENT_SET_KEYBOARD_CALLBACK.
|
2017-04-20 19:03:52 +00:00
|
|
|
* 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.
|
|
|
|
|
*
|
|
|
|
|
* The pressed/keycode state can be indepedent of the character.
|
2020-10-10 17:14:10 +00:00
|
|
|
* It is also possible that multiple characters are generated from a
|
2017-04-20 19:03:52 +00:00
|
|
|
* single keypress.
|
|
|
|
|
* Keycode events should be treated separately from character events.
|
|
|
|
|
* However, when possible, the frontend should try to synchronize these.
|
|
|
|
|
* If only a character is posted, keycode should be RETROK_UNKNOWN.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* Similarily if only a keycode event is generated with no corresponding
|
2017-04-20 19:03:52 +00:00
|
|
|
* character, character should be 0.
|
|
|
|
|
*/
|
2020-10-10 17:14:10 +00:00
|
|
|
typedef void (RETRO_CALLCONV *retro_keyboard_event_t)(bool down, unsigned keycode,
|
2017-04-20 19:03:52 +00:00
|
|
|
uint32_t character, uint16_t key_modifiers);
|
|
|
|
|
|
|
|
|
|
struct retro_keyboard_callback
|
|
|
|
|
{
|
|
|
|
|
retro_keyboard_event_t callback;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Callbacks for RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE.
|
2020-10-10 17:14:10 +00:00
|
|
|
* Should be set for implementations which can swap out multiple disk
|
2017-04-20 19:03:52 +00:00
|
|
|
* 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.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* Overview: To swap a disk image, eject the disk image with
|
2017-04-20 19:03:52 +00:00
|
|
|
* set_eject_state(true).
|
2020-10-10 17:14:10 +00:00
|
|
|
* Set the disk index with set_image_index(index). Insert the disk again
|
2017-04-20 19:03:52 +00:00
|
|
|
* 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_CALLCONV *retro_set_eject_state_t)(bool ejected);
|
|
|
|
|
|
|
|
|
|
/* Gets current eject state. The initial state is 'not ejected'. */
|
|
|
|
|
typedef bool (RETRO_CALLCONV *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_CALLCONV *retro_get_image_index_t)(void);
|
|
|
|
|
|
|
|
|
|
/* Sets image index. Can only be called when disk is ejected.
|
2020-10-10 17:14:10 +00:00
|
|
|
* The implementation supports setting "no disk" by using an
|
2017-04-20 19:03:52 +00:00
|
|
|
* index >= get_num_images().
|
|
|
|
|
*/
|
|
|
|
|
typedef bool (RETRO_CALLCONV *retro_set_image_index_t)(unsigned index);
|
|
|
|
|
|
|
|
|
|
/* Gets total number of images which are available to use. */
|
|
|
|
|
typedef unsigned (RETRO_CALLCONV *retro_get_num_images_t)(void);
|
|
|
|
|
|
|
|
|
|
struct retro_game_info;
|
|
|
|
|
|
|
|
|
|
/* 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.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* Replacing a disk image with info = NULL will remove the disk image
|
2017-04-20 19:03:52 +00:00
|
|
|
* from the internal list.
|
|
|
|
|
* As a result, calls to get_image_index() can change.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* E.g. replace_image_index(1, NULL), and previous get_image_index()
|
2017-04-20 19:03:52 +00:00
|
|
|
* returned 4 before.
|
|
|
|
|
* Index 1 will be removed, and the new index is 3.
|
|
|
|
|
*/
|
|
|
|
|
typedef bool (RETRO_CALLCONV *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.
|
2020-10-10 17:14:10 +00:00
|
|
|
* This image index cannot be used until a disk image has been set
|
2017-04-20 19:03:52 +00:00
|
|
|
* with replace_image_index. */
|
|
|
|
|
typedef bool (RETRO_CALLCONV *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
|
2020-10-10 17:14:10 +00:00
|
|
|
* format is desired as it is the pixel format that is typically
|
2017-04-20 19:03:52 +00:00
|
|
|
* 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;
|
|
|
|
|
|
|
|
|
|
/* Human readable description for parameters.
|
|
|
|
|
* The pointer must remain valid until
|
|
|
|
|
* retro_unload_game() is called. */
|
2020-10-10 17:14:10 +00:00
|
|
|
const char *description;
|
2017-04-20 19:03:52 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
struct retro_system_info
|
|
|
|
|
{
|
2020-10-10 17:14:10 +00:00
|
|
|
/* All pointers are owned by libretro implementation, and pointers must
|
2017-04-20 19:03:52 +00:00
|
|
|
* remain valid until retro_deinit() is called. */
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
const char *library_name; /* Descriptive name of library. Should not
|
2017-04-20 19:03:52 +00:00
|
|
|
* contain any version numbers, etc. */
|
|
|
|
|
const char *library_version; /* Descriptive version of core. */
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
const char *valid_extensions; /* A string listing probably content
|
|
|
|
|
* extensions the core will be able to
|
2017-04-20 19:03:52 +00:00
|
|
|
* load, separated with pipe.
|
|
|
|
|
* I.e. "bin|rom|iso".
|
2020-10-10 17:14:10 +00:00
|
|
|
* Typically used for a GUI to filter
|
2017-04-20 19:03:52 +00:00
|
|
|
* out extensions. */
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Libretro cores that need to have direct access to their content
|
|
|
|
|
* files, including cores which use the path of the content files to
|
|
|
|
|
* determine the paths of other files, should set need_fullpath to true.
|
|
|
|
|
*
|
|
|
|
|
* Cores should strive for setting need_fullpath to false,
|
|
|
|
|
* as it allows the frontend to perform patching, etc.
|
|
|
|
|
*
|
|
|
|
|
* If need_fullpath is true and retro_load_game() is called:
|
|
|
|
|
* - retro_game_info::path is guaranteed to have a valid path
|
|
|
|
|
* - retro_game_info::data and retro_game_info::size are invalid
|
2017-04-20 19:03:52 +00:00
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* If need_fullpath is false and retro_load_game() is called:
|
|
|
|
|
* - retro_game_info::path may be NULL
|
|
|
|
|
* - retro_game_info::data and retro_game_info::size are guaranteed
|
|
|
|
|
* to be valid
|
2017-04-20 19:03:52 +00:00
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* See also:
|
|
|
|
|
* - RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY
|
|
|
|
|
* - RETRO_ENVIRONMENT_GET_SAVE_DIRECTORY
|
|
|
|
|
*/
|
|
|
|
|
bool need_fullpath;
|
2017-04-20 19:03:52 +00:00
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* If true, the frontend is not allowed to extract any archives before
|
2017-04-20 19:03:52 +00:00
|
|
|
* loading the real content.
|
2020-10-10 17:14:10 +00:00
|
|
|
* Necessary for certain libretro implementations that load games
|
2017-04-20 19:03:52 +00:00
|
|
|
* from zipped archives. */
|
2020-10-10 17:14:10 +00:00
|
|
|
bool block_extract;
|
2017-04-20 19:03:52 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
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
|
|
|
|
|
{
|
|
|
|
|
/* Variable to query in RETRO_ENVIRONMENT_GET_VARIABLE.
|
2020-10-10 17:14:10 +00:00
|
|
|
* If NULL, obtains the complete environment string if more
|
2017-04-20 19:03:52 +00:00
|
|
|
* complex parsing is necessary.
|
2020-10-10 17:14:10 +00:00
|
|
|
* The environment string is formatted as key-value pairs
|
2017-04-20 19:03:52 +00:00
|
|
|
* delimited by semicolons as so:
|
|
|
|
|
* "key1=value1;key2=value2;..."
|
|
|
|
|
*/
|
|
|
|
|
const char *key;
|
2020-10-10 17:14:10 +00:00
|
|
|
|
2017-04-20 19:03:52 +00:00
|
|
|
/* Value to be obtained. If key does not exist, it is set to NULL. */
|
|
|
|
|
const char *value;
|
|
|
|
|
};
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
struct retro_core_option_display
|
|
|
|
|
{
|
|
|
|
|
/* Variable to configure in RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY */
|
|
|
|
|
const char *key;
|
|
|
|
|
|
|
|
|
|
/* Specifies whether variable should be displayed
|
|
|
|
|
* when presenting core options to the user */
|
|
|
|
|
bool visible;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Maximum number of values permitted for a core option
|
|
|
|
|
* NOTE: This may be increased on a core-by-core basis
|
|
|
|
|
* if required (doing so has no effect on the frontend) */
|
|
|
|
|
#define RETRO_NUM_CORE_OPTION_VALUES_MAX 128
|
|
|
|
|
|
|
|
|
|
struct retro_core_option_value
|
|
|
|
|
{
|
|
|
|
|
/* Expected option value */
|
|
|
|
|
const char *value;
|
|
|
|
|
|
|
|
|
|
/* Human-readable value label. If NULL, value itself
|
|
|
|
|
* will be displayed by the frontend */
|
|
|
|
|
const char *label;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
struct retro_core_option_definition
|
|
|
|
|
{
|
|
|
|
|
/* Variable to query in RETRO_ENVIRONMENT_GET_VARIABLE. */
|
|
|
|
|
const char *key;
|
|
|
|
|
|
|
|
|
|
/* Human-readable core option description (used as menu label) */
|
|
|
|
|
const char *desc;
|
|
|
|
|
|
|
|
|
|
/* Human-readable core option information (used as menu sublabel) */
|
|
|
|
|
const char *info;
|
|
|
|
|
|
|
|
|
|
/* Array of retro_core_option_value structs, terminated by NULL */
|
|
|
|
|
struct retro_core_option_value values[RETRO_NUM_CORE_OPTION_VALUES_MAX];
|
|
|
|
|
|
|
|
|
|
/* Default core option value. Must match one of the values
|
|
|
|
|
* in the retro_core_option_value array, otherwise will be
|
|
|
|
|
* ignored */
|
|
|
|
|
const char *default_value;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
struct retro_core_options_intl
|
|
|
|
|
{
|
|
|
|
|
/* Pointer to an array of retro_core_option_definition structs
|
|
|
|
|
* - US English implementation
|
|
|
|
|
* - Must point to a valid array */
|
|
|
|
|
struct retro_core_option_definition *us;
|
|
|
|
|
|
|
|
|
|
/* Pointer to an array of retro_core_option_definition structs
|
|
|
|
|
* - Implementation for current frontend language
|
|
|
|
|
* - May be NULL */
|
|
|
|
|
struct retro_core_option_definition *local;
|
|
|
|
|
};
|
|
|
|
|
|
2017-04-20 19:03:52 +00:00
|
|
|
struct retro_game_info
|
|
|
|
|
{
|
|
|
|
|
const char *path; /* Path to game, UTF-8 encoded.
|
2020-10-10 17:14:10 +00:00
|
|
|
* Sometimes used as a reference for building other paths.
|
|
|
|
|
* May be NULL if game was loaded from stdin or similar,
|
|
|
|
|
* but in this case some cores will be unable to load `data`.
|
|
|
|
|
* So, it is preferable to fabricate something here instead
|
|
|
|
|
* of passing NULL, which will help more cores to succeed.
|
|
|
|
|
* retro_system_info::need_fullpath requires
|
2017-04-20 19:03:52 +00:00
|
|
|
* that this path is valid. */
|
2020-10-10 17:14:10 +00:00
|
|
|
const void *data; /* Memory buffer of loaded game. Will be NULL
|
2017-04-20 19:03:52 +00:00
|
|
|
* if need_fullpath was set. */
|
|
|
|
|
size_t size; /* Size of memory buffer. */
|
|
|
|
|
const char *meta; /* String of implementation specific meta-data. */
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
#define RETRO_MEMORY_ACCESS_WRITE (1 << 0)
|
|
|
|
|
/* The core will write to the buffer provided by retro_framebuffer::data. */
|
|
|
|
|
#define RETRO_MEMORY_ACCESS_READ (1 << 1)
|
|
|
|
|
/* The core will read from retro_framebuffer::data. */
|
|
|
|
|
#define RETRO_MEMORY_TYPE_CACHED (1 << 0)
|
|
|
|
|
/* The memory in data is cached.
|
|
|
|
|
* If not cached, random writes and/or reading from the buffer is expected to be very slow. */
|
|
|
|
|
struct retro_framebuffer
|
|
|
|
|
{
|
|
|
|
|
void *data; /* The framebuffer which the core can render into.
|
|
|
|
|
Set by frontend in GET_CURRENT_SOFTWARE_FRAMEBUFFER.
|
|
|
|
|
The initial contents of data are unspecified. */
|
|
|
|
|
unsigned width; /* The framebuffer width used by the core. Set by core. */
|
|
|
|
|
unsigned height; /* The framebuffer height used by the core. Set by core. */
|
|
|
|
|
size_t pitch; /* The number of bytes between the beginning of a scanline,
|
|
|
|
|
and beginning of the next scanline.
|
|
|
|
|
Set by frontend in GET_CURRENT_SOFTWARE_FRAMEBUFFER. */
|
|
|
|
|
enum retro_pixel_format format; /* The pixel format the core must use to render into data.
|
|
|
|
|
This format could differ from the format used in
|
|
|
|
|
SET_PIXEL_FORMAT.
|
|
|
|
|
Set by frontend in GET_CURRENT_SOFTWARE_FRAMEBUFFER. */
|
|
|
|
|
|
|
|
|
|
unsigned access_flags; /* How the core will access the memory in the framebuffer.
|
|
|
|
|
RETRO_MEMORY_ACCESS_* flags.
|
|
|
|
|
Set by core. */
|
|
|
|
|
unsigned memory_flags; /* Flags telling core how the memory has been mapped.
|
|
|
|
|
RETRO_MEMORY_TYPE_* flags.
|
|
|
|
|
Set by frontend in GET_CURRENT_SOFTWARE_FRAMEBUFFER. */
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Callbacks */
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Environment callback. Gives implementations a way of performing
|
2017-04-20 19:03:52 +00:00
|
|
|
* uncommon tasks. Extensible. */
|
|
|
|
|
typedef bool (RETRO_CALLCONV *retro_environment_t)(unsigned cmd, void *data);
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Render a frame. Pixel format is 15-bit 0RGB1555 native endian
|
2017-04-20 19:03:52 +00:00
|
|
|
* 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.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* For performance reasons, it is highly recommended to have a frame
|
2017-04-20 19:03:52 +00:00
|
|
|
* that is packed in memory, i.e. pitch == width * byte_per_pixel.
|
2020-10-10 17:14:10 +00:00
|
|
|
* Certain graphic APIs, such as OpenGL ES, do not like textures
|
2017-04-20 19:03:52 +00:00
|
|
|
* that are not packed in memory.
|
|
|
|
|
*/
|
|
|
|
|
typedef void (RETRO_CALLCONV *retro_video_refresh_t)(const void *data, unsigned width,
|
|
|
|
|
unsigned height, size_t pitch);
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Renders a single audio frame. Should only be used if implementation
|
2017-04-20 19:03:52 +00:00
|
|
|
* generates a single sample at a time.
|
|
|
|
|
* Format is signed 16-bit native endian.
|
|
|
|
|
*/
|
|
|
|
|
typedef void (RETRO_CALLCONV *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_CALLCONV *retro_audio_sample_batch_t)(const int16_t *data,
|
|
|
|
|
size_t frames);
|
|
|
|
|
|
|
|
|
|
/* Polls input. */
|
|
|
|
|
typedef void (RETRO_CALLCONV *retro_input_poll_t)(void);
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Queries for input for player 'port'. device will be masked with
|
2017-04-20 19:03:52 +00:00
|
|
|
* RETRO_DEVICE_MASK.
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* Specialization of devices such as RETRO_DEVICE_JOYPAD_MULTITAP that
|
2017-04-20 19:03:52 +00:00
|
|
|
* have been set with retro_set_controller_port_device()
|
|
|
|
|
* will still use the higher level RETRO_DEVICE_JOYPAD to request input.
|
|
|
|
|
*/
|
2020-10-10 17:14:10 +00:00
|
|
|
typedef int16_t (RETRO_CALLCONV *retro_input_state_t)(unsigned port, unsigned device,
|
2017-04-20 19:03:52 +00:00
|
|
|
unsigned index, unsigned id);
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Sets callbacks. retro_set_environment() is guaranteed to be called
|
2017-04-20 19:03:52 +00:00
|
|
|
* before retro_init().
|
|
|
|
|
*
|
2020-10-10 17:14:10 +00:00
|
|
|
* The rest of the set_* functions are guaranteed to have been called
|
2017-04-20 19:03:52 +00:00
|
|
|
* before the first call to retro_run() is made. */
|
|
|
|
|
RETRO_API void retro_set_environment(retro_environment_t);
|
|
|
|
|
RETRO_API void retro_set_video_refresh(retro_video_refresh_t);
|
|
|
|
|
RETRO_API void retro_set_audio_sample(retro_audio_sample_t);
|
|
|
|
|
RETRO_API void retro_set_audio_sample_batch(retro_audio_sample_batch_t);
|
|
|
|
|
RETRO_API void retro_set_input_poll(retro_input_poll_t);
|
|
|
|
|
RETRO_API void retro_set_input_state(retro_input_state_t);
|
|
|
|
|
|
|
|
|
|
/* Library global initialization/deinitialization. */
|
|
|
|
|
RETRO_API void retro_init(void);
|
|
|
|
|
RETRO_API void retro_deinit(void);
|
|
|
|
|
|
|
|
|
|
/* Must return RETRO_API_VERSION. Used to validate ABI compatibility
|
|
|
|
|
* when the API is revised. */
|
|
|
|
|
RETRO_API unsigned retro_api_version(void);
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Gets statically known system info. Pointers provided in *info
|
2017-04-20 19:03:52 +00:00
|
|
|
* must be statically allocated.
|
|
|
|
|
* Can be called at any time, even before retro_init(). */
|
|
|
|
|
RETRO_API 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.
|
2020-10-10 17:14:10 +00:00
|
|
|
* NOTE: The implementation of this function might not initialize every
|
2017-04-20 19:03:52 +00:00
|
|
|
* variable if needed.
|
2020-10-10 17:14:10 +00:00
|
|
|
* E.g. geom.aspect_ratio might not be initialized if core doesn't
|
2017-04-20 19:03:52 +00:00
|
|
|
* desire a particular aspect ratio. */
|
|
|
|
|
RETRO_API void retro_get_system_av_info(struct retro_system_av_info *info);
|
|
|
|
|
|
|
|
|
|
/* Sets device to be used for player 'port'.
|
2020-10-10 17:14:10 +00:00
|
|
|
* By default, RETRO_DEVICE_JOYPAD is assumed to be plugged into all
|
2017-04-20 19:03:52 +00:00
|
|
|
* available ports.
|
2020-10-10 17:14:10 +00:00
|
|
|
* Setting a particular device type is not a guarantee that libretro cores
|
|
|
|
|
* will only poll input based on that particular device type. It is only a
|
|
|
|
|
* hint to the libretro core when a core cannot automatically detect the
|
|
|
|
|
* appropriate input device type on its own. It is also relevant when a
|
|
|
|
|
* core can change its behavior depending on device type.
|
|
|
|
|
*
|
|
|
|
|
* As part of the core's implementation of retro_set_controller_port_device,
|
|
|
|
|
* the core should call RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS to notify the
|
|
|
|
|
* frontend if the descriptions for any controls have changed as a
|
|
|
|
|
* result of changing the device type.
|
|
|
|
|
*/
|
2017-04-20 19:03:52 +00:00
|
|
|
RETRO_API void retro_set_controller_port_device(unsigned port, unsigned device);
|
|
|
|
|
|
|
|
|
|
/* Resets the current game. */
|
|
|
|
|
RETRO_API void retro_reset(void);
|
|
|
|
|
|
|
|
|
|
/* Runs the game for one video frame.
|
|
|
|
|
* During retro_run(), input_poll callback must be called at least once.
|
2020-10-10 17:14:10 +00:00
|
|
|
*
|
2017-04-20 19:03:52 +00:00
|
|
|
* If a frame is not rendered for reasons where a game "dropped" a frame,
|
2020-10-10 17:14:10 +00:00
|
|
|
* this still counts as a frame, and retro_run() should explicitly dupe
|
2017-04-20 19:03:52 +00:00
|
|
|
* a frame if GET_CAN_DUPE returns true.
|
|
|
|
|
* In this case, the video callback can take a NULL argument for data.
|
|
|
|
|
*/
|
|
|
|
|
RETRO_API void retro_run(void);
|
|
|
|
|
|
2020-10-10 17:14:10 +00:00
|
|
|
/* Returns the amount of data the implementation requires to serialize
|
2017-04-20 19:03:52 +00:00
|
|
|
* internal state (save states).
|
2020-10-10 17:14:10 +00:00
|
|
|
* Between calls to retro_load_game() and retro_unload_game(), the
|
|
|
|
|
* returned size is never allowed to be larger than a previous returned
|
2017-04-20 19:03:52 +00:00
|
|
|
* value, to ensure that the frontend can allocate a save state buffer once.
|
|
|
|
|
*/
|
|
|
|
|
RETRO_API size_t retro_serialize_size(void);
|
|
|
|
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/* Serializes internal state. If failed, or size is lower than
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* retro_serialize_size(), it should return false, true otherwise. */
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RETRO_API bool retro_serialize(void *data, size_t size);
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RETRO_API bool retro_unserialize(const void *data, size_t size);
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RETRO_API void retro_cheat_reset(void);
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RETRO_API void retro_cheat_set(unsigned index, bool enabled, const char *code);
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2020-10-10 17:14:10 +00:00
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/* Loads a game.
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* Return true to indicate successful loading and false to indicate load failure.
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*/
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2017-04-20 19:03:52 +00:00
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RETRO_API bool retro_load_game(const struct retro_game_info *game);
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/* Loads a "special" kind of game. Should not be used,
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* except in extreme cases. */
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RETRO_API bool retro_load_game_special(
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unsigned game_type,
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const struct retro_game_info *info, size_t num_info
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);
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2020-10-10 17:14:10 +00:00
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/* Unloads the currently loaded game. Called before retro_deinit(void). */
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2017-04-20 19:03:52 +00:00
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RETRO_API void retro_unload_game(void);
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/* Gets region of game. */
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RETRO_API unsigned retro_get_region(void);
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/* Gets region of memory. */
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RETRO_API void *retro_get_memory_data(unsigned id);
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RETRO_API size_t retro_get_memory_size(unsigned id);
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#ifdef __cplusplus
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}
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#endif
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#endif
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