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rcore.c
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/**********************************************************************************************
*
* rcore - Basic functions to manage windows, OpenGL context and input on multiple platforms
*
* PLATFORMS SUPPORTED:
* - PLATFORM_DESKTOP: Windows (Win32, Win64)
* - PLATFORM_DESKTOP: Linux (X11 desktop mode)
* - PLATFORM_DESKTOP: FreeBSD, OpenBSD, NetBSD, DragonFly (X11 desktop)
* - PLATFORM_DESKTOP: OSX/macOS
* - PLATFORM_ANDROID: Android (ARM, ARM64)
* - PLATFORM_RPI: Raspberry Pi 0,1,2,3 (Raspbian, native mode)
* - PLATFORM_DRM: Linux native mode, including Raspberry Pi 4 with V3D fkms driver
* - PLATFORM_WEB: HTML5 with WebAssembly
*
* CONFIGURATION:
*
* #define PLATFORM_DESKTOP
* Windowing and input system configured for desktop platforms: Windows, Linux, OSX, FreeBSD, OpenBSD, NetBSD, DragonFly
* NOTE: Oculus Rift CV1 requires PLATFORM_DESKTOP for mirror rendering - View [rlgl] module to enable it
*
* #define PLATFORM_ANDROID
* Windowing and input system configured for Android device, app activity managed internally in this module.
* NOTE: OpenGL ES 2.0 is required and graphic device is managed by EGL
*
* #define PLATFORM_RPI (deprecated - RPI OS Buster only)
* Windowing and input system configured for Raspberry Pi in native mode (no XWindow required),
* graphic device is managed by EGL and inputs are processed is raw mode, reading from /dev/input/
* WARNING: This platform is deprecated, since RPI OS Bullseye, the old Dispmanx libraries are not
* supported and you must be using PLATFORM_DRM
*
* #define PLATFORM_DRM
* Windowing and input system configured for DRM native mode (RPI4 and other devices)
* graphic device is managed by EGL and inputs are processed is raw mode, reading from /dev/input/
*
* #define PLATFORM_WEB
* Windowing and input system configured for HTML5 (run on browser), code converted from C to asm.js
* using emscripten compiler. OpenGL ES 2.0 required for direct translation to WebGL equivalent code.
*
* #define SUPPORT_DEFAULT_FONT (default)
* Default font is loaded on window initialization to be available for the user to render simple text.
* NOTE: If enabled, uses external module functions to load default raylib font (module: text)
*
* #define SUPPORT_CAMERA_SYSTEM
* Camera module is included (rcamera.h) and multiple predefined cameras are available: free, 1st/3rd person, orbital
*
* #define SUPPORT_GESTURES_SYSTEM
* Gestures module is included (rgestures.h) to support gestures detection: tap, hold, swipe, drag
*
* #define SUPPORT_MOUSE_GESTURES
* Mouse gestures are directly mapped like touches and processed by gestures system.
*
* #define SUPPORT_TOUCH_AS_MOUSE
* Touch input and mouse input are shared. Mouse functions also return touch information.
*
* #define SUPPORT_SSH_KEYBOARD_RPI (Raspberry Pi only)
* Reconfigure standard input to receive key inputs, works with SSH connection.
* WARNING: Reconfiguring standard input could lead to undesired effects, like breaking other running processes or
* blocking the device if not restored properly. Use with care.
*
* #define SUPPORT_BUSY_WAIT_LOOP
* Use busy wait loop for timing sync, if not defined, a high-resolution timer is setup and used
*
* #define SUPPORT_PARTIALBUSY_WAIT_LOOP
* Use a partial-busy wait loop, in this case frame sleeps for most of the time and runs a busy-wait-loop at the end
*
* #define SUPPORT_EVENTS_WAITING
* Wait for events passively (sleeping while no events) instead of polling them actively every frame
*
* #define SUPPORT_SCREEN_CAPTURE
* Allow automatic screen capture of current screen pressing F12, defined in KeyCallback()
*
* #define SUPPORT_GIF_RECORDING
* Allow automatic gif recording of current screen pressing CTRL+F12, defined in KeyCallback()
*
* #define SUPPORT_COMPRESSION_API
* Support CompressData() and DecompressData() functions, those functions use zlib implementation
* provided by stb_image and stb_image_write libraries, so, those libraries must be enabled on textures module
* for linkage
*
* #define SUPPORT_EVENTS_AUTOMATION
* Support automatic generated events, loading and recording of those events when required
*
* DEPENDENCIES:
* rglfw - Manage graphic device, OpenGL context and inputs on PLATFORM_DESKTOP (Windows, Linux, OSX. FreeBSD, OpenBSD, NetBSD, DragonFly)
* raymath - 3D math functionality (Vector2, Vector3, Matrix, Quaternion)
* camera - Multiple 3D camera modes (free, orbital, 1st person, 3rd person)
* gestures - Gestures system for touch-ready devices (or simulated from mouse inputs)
*
*
* LICENSE: zlib/libpng
*
* Copyright (c) 2013-2022 Ramon Santamaria (@raysan5)
*
* This software is provided "as-is", without any express or implied warranty. In no event
* will the authors be held liable for any damages arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose, including commercial
* applications, and to alter it and redistribute it freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not claim that you
* wrote the original software. If you use this software in a product, an acknowledgment
* in the product documentation would be appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be misrepresented
* as being the original software.
*
* 3. This notice may not be removed or altered from any source distribution.
*
**********************************************************************************************/
#include "raylib.h" // Declares module functions
// Check if config flags have been externally provided on compilation line
#if !defined(EXTERNAL_CONFIG_FLAGS)
#include "config.h" // Defines module configuration flags
#endif
#include "utils.h" // Required for: TRACELOG() macros
#define RLGL_IMPLEMENTATION
#include "rlgl.h" // OpenGL abstraction layer to OpenGL 1.1, 3.3+ or ES2
#define RAYMATH_IMPLEMENTATION // Define external out-of-line implementation
#include "raymath.h" // Vector3, Quaternion and Matrix functionality
#if defined(SUPPORT_GESTURES_SYSTEM)
#define GESTURES_IMPLEMENTATION
#include "rgestures.h" // Gestures detection functionality
#endif
#if defined(SUPPORT_CAMERA_SYSTEM)
#define CAMERA_IMPLEMENTATION
#include "rcamera.h" // Camera system functionality
#endif
#if defined(SUPPORT_GIF_RECORDING)
#define MSF_GIF_MALLOC(contextPointer, newSize) RL_MALLOC(newSize)
#define MSF_GIF_REALLOC(contextPointer, oldMemory, oldSize, newSize) RL_REALLOC(oldMemory, newSize)
#define MSF_GIF_FREE(contextPointer, oldMemory, oldSize) RL_FREE(oldMemory)
#define MSF_GIF_IMPL
#include "external/msf_gif.h" // GIF recording functionality
#endif
#if defined(SUPPORT_COMPRESSION_API)
#define SINFL_IMPLEMENTATION
#define SINFL_NO_SIMD
#include "external/sinfl.h" // Deflate (RFC 1951) decompressor
#define SDEFL_IMPLEMENTATION
#include "external/sdefl.h" // Deflate (RFC 1951) compressor
#endif
#if (defined(__linux__) || defined(PLATFORM_WEB)) && _POSIX_C_SOURCE < 199309L
#undef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 199309L // Required for: CLOCK_MONOTONIC if compiled with c99 without gnu ext.
#endif
// Platform specific defines to handle GetApplicationDirectory()
#if defined (PLATFORM_DESKTOP)
#if defined(_WIN32)
#ifndef MAX_PATH
#define MAX_PATH 1025
#endif
__declspec(dllimport) unsigned long __stdcall GetModuleFileNameA(void *hModule, void *lpFilename, unsigned long nSize);
__declspec(dllimport) unsigned long __stdcall GetModuleFileNameW(void *hModule, void *lpFilename, unsigned long nSize);
__declspec(dllimport) int __stdcall WideCharToMultiByte(unsigned int cp, unsigned long flags, void *widestr, int cchwide, void *str, int cbmb, void *defchar, int *used_default);
#elif defined(__linux__)
#include <unistd.h>
#elif defined(__APPLE__)
#include <sys/syslimits.h>
#include <mach-o/dyld.h>
#endif // OSs
#endif // PLATFORM_DESKTOP
#include <stdlib.h> // Required for: srand(), rand(), atexit()
#include <stdio.h> // Required for: sprintf() [Used in OpenURL()]
#include <string.h> // Required for: strrchr(), strcmp(), strlen(), memset()
#include <time.h> // Required for: time() [Used in InitTimer()]
#include <math.h> // Required for: tan() [Used in BeginMode3D()], atan2f() [Used in LoadVrStereoConfig()]
#define _CRT_INTERNAL_NONSTDC_NAMES 1
#include <sys/stat.h> // Required for: stat(), S_ISREG [Used in GetFileModTime(), IsFilePath()]
#if !defined(S_ISREG) && defined(S_IFMT) && defined(S_IFREG)
#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
#endif
#if defined(PLATFORM_DESKTOP) && defined(_WIN32) && (defined(_MSC_VER) || defined(__TINYC__))
#define DIRENT_MALLOC RL_MALLOC
#define DIRENT_FREE RL_FREE
#include "external/dirent.h" // Required for: DIR, opendir(), closedir() [Used in LoadDirectoryFiles()]
#else
#include <dirent.h> // Required for: DIR, opendir(), closedir() [Used in LoadDirectoryFiles()]
#endif
#if defined(_WIN32)
#include <direct.h> // Required for: _getch(), _chdir()
#define GETCWD _getcwd // NOTE: MSDN recommends not to use getcwd(), chdir()
#define CHDIR _chdir
#include <io.h> // Required for: _access() [Used in FileExists()]
#else
#include <unistd.h> // Required for: getch(), chdir() (POSIX), access()
#define GETCWD getcwd
#define CHDIR chdir
#endif
#if defined(PLATFORM_DESKTOP)
#define GLFW_INCLUDE_NONE // Disable the standard OpenGL header inclusion on GLFW3
// NOTE: Already provided by rlgl implementation (on glad.h)
#include "GLFW/glfw3.h" // GLFW3 library: Windows, OpenGL context and Input management
// NOTE: GLFW3 already includes gl.h (OpenGL) headers
// Support retrieving native window handlers
#if defined(_WIN32)
typedef void *PVOID;
typedef PVOID HANDLE;
typedef HANDLE HWND;
#define GLFW_EXPOSE_NATIVE_WIN32
#define GLFW_NATIVE_INCLUDE_NONE // To avoid some symbols re-definition in windows.h
#include "GLFW/glfw3native.h"
#if defined(SUPPORT_WINMM_HIGHRES_TIMER) && !defined(SUPPORT_BUSY_WAIT_LOOP)
// NOTE: Those functions require linking with winmm library
unsigned int __stdcall timeBeginPeriod(unsigned int uPeriod);
unsigned int __stdcall timeEndPeriod(unsigned int uPeriod);
#endif
#endif
#if defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__)
#include <sys/time.h> // Required for: timespec, nanosleep(), select() - POSIX
//#define GLFW_EXPOSE_NATIVE_X11 // WARNING: Exposing Xlib.h > X.h results in dup symbols for Font type
//#define GLFW_EXPOSE_NATIVE_WAYLAND
//#define GLFW_EXPOSE_NATIVE_MIR
#include "GLFW/glfw3native.h" // Required for: glfwGetX11Window()
#endif
#if defined(__APPLE__)
#include <unistd.h> // Required for: usleep()
//#define GLFW_EXPOSE_NATIVE_COCOA // WARNING: Fails due to type redefinition
#include "GLFW/glfw3native.h" // Required for: glfwGetCocoaWindow()
#endif
// TODO: HACK: Added flag if not provided by GLFW when using external library
// Latest GLFW release (GLFW 3.3.8) does not implement this flag, it was added for 3.4.0-dev
#if !defined(GLFW_MOUSE_PASSTHROUGH)
#define GLFW_MOUSE_PASSTHROUGH 0x0002000D
#endif
#endif
#if defined(PLATFORM_ANDROID)
//#include <android/sensor.h> // Required for: Android sensors functions (accelerometer, gyroscope, light...)
#include <android/window.h> // Required for: AWINDOW_FLAG_FULLSCREEN definition and others
#include <android_native_app_glue.h> // Required for: android_app struct and activity management
#include <jni.h> // Required for: JNIEnv and JavaVM [Used in OpenURL()]
#include <EGL/egl.h> // Native platform windowing system interface
//#include <GLES2/gl2.h> // OpenGL ES 2.0 library (not required in this module, only in rlgl)
#endif
#if defined(PLATFORM_RPI) || defined(PLATFORM_DRM)
#include <fcntl.h> // POSIX file control definitions - open(), creat(), fcntl()
#include <unistd.h> // POSIX standard function definitions - read(), close(), STDIN_FILENO
#include <termios.h> // POSIX terminal control definitions - tcgetattr(), tcsetattr()
#include <pthread.h> // POSIX threads management (inputs reading)
#include <dirent.h> // POSIX directory browsing
#include <sys/ioctl.h> // Required for: ioctl() - UNIX System call for device-specific input/output operations
#include <linux/kd.h> // Linux: KDSKBMODE, K_MEDIUMRAM constants definition
#include <linux/input.h> // Linux: Keycodes constants definition (KEY_A, ...)
#include <linux/joystick.h> // Linux: Joystick support library
#if defined(PLATFORM_RPI)
#include "bcm_host.h" // Raspberry Pi VideoCore IV access functions
#endif
#if defined(PLATFORM_DRM)
#include <gbm.h> // Generic Buffer Management (native platform for EGL on DRM)
#include <xf86drm.h> // Direct Rendering Manager user-level library interface
#include <xf86drmMode.h> // Direct Rendering Manager mode setting (KMS) interface
#endif
#include "EGL/egl.h" // Native platform windowing system interface
#include "EGL/eglext.h" // EGL extensions
//#include "GLES2/gl2.h" // OpenGL ES 2.0 library (not required in this module, only in rlgl)
#endif
#if defined(PLATFORM_WEB)
#define GLFW_INCLUDE_ES2 // GLFW3: Enable OpenGL ES 2.0 (translated to WebGL)
#include "GLFW/glfw3.h" // GLFW3: Windows, OpenGL context and Input management
#include <sys/time.h> // Required for: timespec, nanosleep(), select() - POSIX
#include <emscripten/emscripten.h> // Emscripten functionality for C
#include <emscripten/html5.h> // Emscripten HTML5 library
#endif
//----------------------------------------------------------------------------------
// Defines and Macros
//----------------------------------------------------------------------------------
#if defined(PLATFORM_RPI) || defined(PLATFORM_DRM)
#define USE_LAST_TOUCH_DEVICE // When multiple touchscreens are connected, only use the one with the highest event<N> number
#define DEFAULT_GAMEPAD_DEV "/dev/input/js" // Gamepad input (base dev for all gamepads: js0, js1, ...)
#define DEFAULT_EVDEV_PATH "/dev/input/" // Path to the linux input events
#endif
#ifndef MAX_FILEPATH_CAPACITY
#define MAX_FILEPATH_CAPACITY 8192 // Maximum capacity for filepath
#endif
#ifndef MAX_FILEPATH_LENGTH
#define MAX_FILEPATH_LENGTH 4096 // Maximum length for filepaths (Linux PATH_MAX default value)
#endif
#ifndef MAX_KEYBOARD_KEYS
#define MAX_KEYBOARD_KEYS 512 // Maximum number of keyboard keys supported
#endif
#ifndef MAX_MOUSE_BUTTONS
#define MAX_MOUSE_BUTTONS 8 // Maximum number of mouse buttons supported
#endif
#ifndef MAX_GAMEPADS
#define MAX_GAMEPADS 4 // Maximum number of gamepads supported
#endif
#ifndef MAX_GAMEPAD_AXIS
#define MAX_GAMEPAD_AXIS 8 // Maximum number of axis supported (per gamepad)
#endif
#ifndef MAX_GAMEPAD_BUTTONS
#define MAX_GAMEPAD_BUTTONS 32 // Maximum number of buttons supported (per gamepad)
#endif
#ifndef MAX_TOUCH_POINTS
#define MAX_TOUCH_POINTS 8 // Maximum number of touch points supported
#endif
#ifndef MAX_KEY_PRESSED_QUEUE
#define MAX_KEY_PRESSED_QUEUE 16 // Maximum number of keys in the key input queue
#endif
#ifndef MAX_CHAR_PRESSED_QUEUE
#define MAX_CHAR_PRESSED_QUEUE 16 // Maximum number of characters in the char input queue
#endif
#ifndef MAX_DECOMPRESSION_SIZE
#define MAX_DECOMPRESSION_SIZE 64 // Maximum size allocated for decompression in MB
#endif
// Flags operation macros
#define FLAG_SET(n, f) ((n) |= (f))
#define FLAG_CLEAR(n, f) ((n) &= ~(f))
#define FLAG_TOGGLE(n, f) ((n) ^= (f))
#define FLAG_CHECK(n, f) ((n) & (f))
//----------------------------------------------------------------------------------
// Types and Structures Definition
//----------------------------------------------------------------------------------
#if defined(PLATFORM_RPI) || defined(PLATFORM_DRM)
typedef struct {
pthread_t threadId; // Event reading thread id
int fd; // File descriptor to the device it is assigned to
int eventNum; // Number of 'event<N>' device
Rectangle absRange; // Range of values for absolute pointing devices (touchscreens)
int touchSlot; // Hold the touch slot number of the currently being sent multitouch block
bool isMouse; // True if device supports relative X Y movements
bool isTouch; // True if device supports absolute X Y movements and has BTN_TOUCH
bool isMultitouch; // True if device supports multiple absolute movevents and has BTN_TOUCH
bool isKeyboard; // True if device has letter keycodes
bool isGamepad; // True if device has gamepad buttons
} InputEventWorker;
#endif
typedef struct { int x; int y; } Point;
typedef struct { unsigned int width; unsigned int height; } Size;
// Core global state context data
typedef struct CoreData {
struct {
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
GLFWwindow *handle; // GLFW window handle (graphic device)
#endif
#if defined(PLATFORM_RPI)
EGL_DISPMANX_WINDOW_T handle; // Native window handle (graphic device)
#endif
#if defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI) || defined(PLATFORM_DRM)
#if defined(PLATFORM_DRM)
int fd; // File descriptor for /dev/dri/...
drmModeConnector *connector; // Direct Rendering Manager (DRM) mode connector
drmModeCrtc *crtc; // CRT Controller
int modeIndex; // Index of the used mode of connector->modes
struct gbm_device *gbmDevice; // GBM device
struct gbm_surface *gbmSurface; // GBM surface
struct gbm_bo *prevBO; // Previous GBM buffer object (during frame swapping)
uint32_t prevFB; // Previous GBM framebufer (during frame swapping)
#endif // PLATFORM_DRM
EGLDisplay device; // Native display device (physical screen connection)
EGLSurface surface; // Surface to draw on, framebuffers (connected to context)
EGLContext context; // Graphic context, mode in which drawing can be done
EGLConfig config; // Graphic config
#endif
const char *title; // Window text title const pointer
unsigned int flags; // Configuration flags (bit based), keeps window state
bool ready; // Check if window has been initialized successfully
bool fullscreen; // Check if fullscreen mode is enabled
bool shouldClose; // Check if window set for closing
bool resizedLastFrame; // Check if window has been resized last frame
bool eventWaiting; // Wait for events before ending frame
Point position; // Window position on screen (required on fullscreen toggle)
Size display; // Display width and height (monitor, device-screen, LCD, ...)
Size screen; // Screen width and height (used render area)
Size currentFbo; // Current render width and height (depends on active fbo)
Size render; // Framebuffer width and height (render area, including black bars if required)
Point renderOffset; // Offset from render area (must be divided by 2)
Matrix screenScale; // Matrix to scale screen (framebuffer rendering)
char **dropFilepaths; // Store dropped files paths pointers (provided by GLFW)
unsigned int dropFileCount; // Count dropped files strings
} Window;
#if defined(PLATFORM_ANDROID)
struct {
bool appEnabled; // Flag to detect if app is active ** = true
struct android_app *app; // Android activity
struct android_poll_source *source; // Android events polling source
bool contextRebindRequired; // Used to know context rebind required
} Android;
#endif
struct {
const char *basePath; // Base path for data storage
} Storage;
struct {
#if defined(PLATFORM_RPI) || defined(PLATFORM_DRM)
InputEventWorker eventWorker[10]; // List of worker threads for every monitored "/dev/input/event<N>"
#endif
struct {
int exitKey; // Default exit key
char currentKeyState[MAX_KEYBOARD_KEYS]; // Registers current frame key state
char previousKeyState[MAX_KEYBOARD_KEYS]; // Registers previous frame key state
int keyPressedQueue[MAX_KEY_PRESSED_QUEUE]; // Input keys queue
int keyPressedQueueCount; // Input keys queue count
int charPressedQueue[MAX_CHAR_PRESSED_QUEUE]; // Input characters queue (unicode)
int charPressedQueueCount; // Input characters queue count
#if defined(PLATFORM_RPI) || defined(PLATFORM_DRM)
int defaultMode; // Default keyboard mode
#if defined(SUPPORT_SSH_KEYBOARD_RPI)
bool evtMode; // Keyboard in event mode
#endif
int defaultFileFlags; // Default IO file flags
struct termios defaultSettings; // Default keyboard settings
int fd; // File descriptor for the evdev keyboard
#endif
} Keyboard;
struct {
Vector2 offset; // Mouse offset
Vector2 scale; // Mouse scaling
Vector2 currentPosition; // Mouse position on screen
Vector2 previousPosition; // Previous mouse position
int cursor; // Tracks current mouse cursor
bool cursorHidden; // Track if cursor is hidden
bool cursorOnScreen; // Tracks if cursor is inside client area
char currentButtonState[MAX_MOUSE_BUTTONS]; // Registers current mouse button state
char previousButtonState[MAX_MOUSE_BUTTONS]; // Registers previous mouse button state
Vector2 currentWheelMove; // Registers current mouse wheel variation
Vector2 previousWheelMove; // Registers previous mouse wheel variation
#if defined(PLATFORM_RPI) || defined(PLATFORM_DRM)
// NOTE: currentButtonState[] can't be written directly due to multithreading, app could miss the update
char currentButtonStateEvdev[MAX_MOUSE_BUTTONS]; // Holds the new mouse state for the next polling event to grab
#endif
} Mouse;
struct {
int pointCount; // Number of touch points active
int pointId[MAX_TOUCH_POINTS]; // Point identifiers
Vector2 position[MAX_TOUCH_POINTS]; // Touch position on screen
char currentTouchState[MAX_TOUCH_POINTS]; // Registers current touch state
char previousTouchState[MAX_TOUCH_POINTS]; // Registers previous touch state
} Touch;
struct {
int lastButtonPressed; // Register last gamepad button pressed
int axisCount; // Register number of available gamepad axis
bool ready[MAX_GAMEPADS]; // Flag to know if gamepad is ready
char name[MAX_GAMEPADS][64]; // Gamepad name holder
char currentButtonState[MAX_GAMEPADS][MAX_GAMEPAD_BUTTONS]; // Current gamepad buttons state
char previousButtonState[MAX_GAMEPADS][MAX_GAMEPAD_BUTTONS]; // Previous gamepad buttons state
float axisState[MAX_GAMEPADS][MAX_GAMEPAD_AXIS]; // Gamepad axis state
#if defined(PLATFORM_RPI) || defined(PLATFORM_DRM)
pthread_t threadId; // Gamepad reading thread id
int streamId[MAX_GAMEPADS]; // Gamepad device file descriptor
#endif
} Gamepad;
} Input;
struct {
double current; // Current time measure
double previous; // Previous time measure
double update; // Time measure for frame update
double draw; // Time measure for frame draw
double frame; // Time measure for one frame
double target; // Desired time for one frame, if 0 not applied
#if defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI) || defined(PLATFORM_DRM)
unsigned long long base; // Base time measure for hi-res timer
#endif
unsigned int frameCounter; // Frame counter
} Time;
} CoreData;
//----------------------------------------------------------------------------------
// Global Variables Definition
//----------------------------------------------------------------------------------
RLAPI const char *raylib_version = RAYLIB_VERSION; // raylib version exported symbol, required for some bindings
static CoreData CORE = { 0 }; // Global CORE state context
#if defined(SUPPORT_SCREEN_CAPTURE)
static int screenshotCounter = 0; // Screenshots counter
#endif
#if defined(SUPPORT_GIF_RECORDING)
static int gifFrameCounter = 0; // GIF frames counter
static bool gifRecording = false; // GIF recording state
static MsfGifState gifState = { 0 }; // MSGIF context state
#endif
#if defined(SUPPORT_EVENTS_AUTOMATION)
#define MAX_CODE_AUTOMATION_EVENTS 16384
typedef enum AutomationEventType {
EVENT_NONE = 0,
// Input events
INPUT_KEY_UP, // param[0]: key
INPUT_KEY_DOWN, // param[0]: key
INPUT_KEY_PRESSED, // param[0]: key
INPUT_KEY_RELEASED, // param[0]: key
INPUT_MOUSE_BUTTON_UP, // param[0]: button
INPUT_MOUSE_BUTTON_DOWN, // param[0]: button
INPUT_MOUSE_POSITION, // param[0]: x, param[1]: y
INPUT_MOUSE_WHEEL_MOTION, // param[0]: x delta, param[1]: y delta
INPUT_GAMEPAD_CONNECT, // param[0]: gamepad
INPUT_GAMEPAD_DISCONNECT, // param[0]: gamepad
INPUT_GAMEPAD_BUTTON_UP, // param[0]: button
INPUT_GAMEPAD_BUTTON_DOWN, // param[0]: button
INPUT_GAMEPAD_AXIS_MOTION, // param[0]: axis, param[1]: delta
INPUT_TOUCH_UP, // param[0]: id
INPUT_TOUCH_DOWN, // param[0]: id
INPUT_TOUCH_POSITION, // param[0]: x, param[1]: y
INPUT_GESTURE, // param[0]: gesture
// Window events
WINDOW_CLOSE, // no params
WINDOW_MAXIMIZE, // no params
WINDOW_MINIMIZE, // no params
WINDOW_RESIZE, // param[0]: width, param[1]: height
// Custom events
ACTION_TAKE_SCREENSHOT,
ACTION_SETTARGETFPS
} AutomationEventType;
// Event type
// Used to enable events flags
typedef enum {
EVENT_INPUT_KEYBOARD = 0,
EVENT_INPUT_MOUSE = 1,
EVENT_INPUT_GAMEPAD = 2,
EVENT_INPUT_TOUCH = 4,
EVENT_INPUT_GESTURE = 8,
EVENT_WINDOW = 16,
EVENT_CUSTOM = 32
} EventType;
static const char *autoEventTypeName[] = {
"EVENT_NONE",
"INPUT_KEY_UP",
"INPUT_KEY_DOWN",
"INPUT_KEY_PRESSED",
"INPUT_KEY_RELEASED",
"INPUT_MOUSE_BUTTON_UP",
"INPUT_MOUSE_BUTTON_DOWN",
"INPUT_MOUSE_POSITION",
"INPUT_MOUSE_WHEEL_MOTION",
"INPUT_GAMEPAD_CONNECT",
"INPUT_GAMEPAD_DISCONNECT",
"INPUT_GAMEPAD_BUTTON_UP",
"INPUT_GAMEPAD_BUTTON_DOWN",
"INPUT_GAMEPAD_AXIS_MOTION",
"INPUT_TOUCH_UP",
"INPUT_TOUCH_DOWN",
"INPUT_TOUCH_POSITION",
"INPUT_GESTURE",
"WINDOW_CLOSE",
"WINDOW_MAXIMIZE",
"WINDOW_MINIMIZE",
"WINDOW_RESIZE",
"ACTION_TAKE_SCREENSHOT",
"ACTION_SETTARGETFPS"
};
// Automation Event (20 bytes)
typedef struct AutomationEvent {
unsigned int frame; // Event frame
unsigned int type; // Event type (AutoEventType)
int params[3]; // Event parameters (if required)
} AutomationEvent;
static AutomationEvent *events = NULL; // Events array
static unsigned int eventCount = 0; // Events count
static bool eventsPlaying = false; // Play events
static bool eventsRecording = false; // Record events
//static short eventsEnabled = 0b0000001111111111; // Events enabled for checking
#endif
//-----------------------------------------------------------------------------------
//----------------------------------------------------------------------------------
// Other Modules Functions Declaration (required by core)
//----------------------------------------------------------------------------------
#if defined(SUPPORT_MODULE_RTEXT) && defined(SUPPORT_DEFAULT_FONT)
extern void LoadFontDefault(void); // [Module: text] Loads default font on InitWindow()
extern void UnloadFontDefault(void); // [Module: text] Unloads default font from GPU memory
#endif
//----------------------------------------------------------------------------------
// Module specific Functions Declaration
//----------------------------------------------------------------------------------
static void InitTimer(void); // Initialize timer (hi-resolution if available)
static bool InitGraphicsDevice(int width, int height); // Initialize graphics device
static void SetupFramebuffer(int width, int height); // Setup main framebuffer
static void SetupViewport(int width, int height); // Set viewport for a provided width and height
static void ScanDirectoryFiles(const char *basePath, FilePathList *list, const char *filter); // Scan all files and directories in a base path
static void ScanDirectoryFilesRecursively(const char *basePath, FilePathList *list, const char *filter); // Scan all files and directories recursively from a base path
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
static void ErrorCallback(int error, const char *description); // GLFW3 Error Callback, runs on GLFW3 error
// Window callbacks events
static void WindowSizeCallback(GLFWwindow *window, int width, int height); // GLFW3 WindowSize Callback, runs when window is resized
#if !defined(PLATFORM_WEB)
static void WindowMaximizeCallback(GLFWwindow* window, int maximized); // GLFW3 Window Maximize Callback, runs when window is maximized
#endif
static void WindowIconifyCallback(GLFWwindow *window, int iconified); // GLFW3 WindowIconify Callback, runs when window is minimized/restored
static void WindowFocusCallback(GLFWwindow *window, int focused); // GLFW3 WindowFocus Callback, runs when window get/lose focus
static void WindowDropCallback(GLFWwindow *window, int count, const char **paths); // GLFW3 Window Drop Callback, runs when drop files into window
// Input callbacks events
static void KeyCallback(GLFWwindow *window, int key, int scancode, int action, int mods); // GLFW3 Keyboard Callback, runs on key pressed
static void CharCallback(GLFWwindow *window, unsigned int key); // GLFW3 Char Key Callback, runs on key pressed (get char value)
static void MouseButtonCallback(GLFWwindow *window, int button, int action, int mods); // GLFW3 Mouse Button Callback, runs on mouse button pressed
static void MouseCursorPosCallback(GLFWwindow *window, double x, double y); // GLFW3 Cursor Position Callback, runs on mouse move
static void MouseScrollCallback(GLFWwindow *window, double xoffset, double yoffset); // GLFW3 Srolling Callback, runs on mouse wheel
static void CursorEnterCallback(GLFWwindow *window, int enter); // GLFW3 Cursor Enter Callback, cursor enters client area
#endif
#if defined(PLATFORM_ANDROID)
static void AndroidCommandCallback(struct android_app *app, int32_t cmd); // Process Android activity lifecycle commands
static int32_t AndroidInputCallback(struct android_app *app, AInputEvent *event); // Process Android inputs
#endif
#if defined(PLATFORM_WEB)
static EM_BOOL EmscriptenFullscreenChangeCallback(int eventType, const EmscriptenFullscreenChangeEvent *event, void *userData);
static EM_BOOL EmscriptenWindowResizedCallback(int eventType, const EmscriptenUiEvent *event, void *userData);
static EM_BOOL EmscriptenResizeCallback(int eventType, const EmscriptenUiEvent *event, void *userData);
static EM_BOOL EmscriptenMouseCallback(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData);
static EM_BOOL EmscriptenTouchCallback(int eventType, const EmscriptenTouchEvent *touchEvent, void *userData);
static EM_BOOL EmscriptenGamepadCallback(int eventType, const EmscriptenGamepadEvent *gamepadEvent, void *userData);
#endif
#if defined(PLATFORM_RPI) || defined(PLATFORM_DRM)
static void InitKeyboard(void); // Initialize raw keyboard system
static void RestoreKeyboard(void); // Restore keyboard system
#if defined(SUPPORT_SSH_KEYBOARD_RPI)
static void ProcessKeyboard(void); // Process keyboard events
#endif
static void InitEvdevInput(void); // Initialize evdev inputs
static void ConfigureEvdevDevice(char *device); // Identifies a input device and configures it for use if appropriate
static void PollKeyboardEvents(void); // Process evdev keyboard events.
static void *EventThread(void *arg); // Input device events reading thread
static void InitGamepad(void); // Initialize raw gamepad input
static void *GamepadThread(void *arg); // Mouse reading thread
#if defined(PLATFORM_DRM)
static int FindMatchingConnectorMode(const drmModeConnector *connector, const drmModeModeInfo *mode); // Search matching DRM mode in connector's mode list
static int FindExactConnectorMode(const drmModeConnector *connector, uint width, uint height, uint fps, bool allowInterlaced); // Search exactly matching DRM connector mode in connector's list
static int FindNearestConnectorMode(const drmModeConnector *connector, uint width, uint height, uint fps, bool allowInterlaced); // Search the nearest matching DRM connector mode in connector's list
#endif
#endif // PLATFORM_RPI || PLATFORM_DRM
#if defined(SUPPORT_EVENTS_AUTOMATION)
static void LoadAutomationEvents(const char *fileName); // Load automation events from file
static void ExportAutomationEvents(const char *fileName); // Export recorded automation events into a file
static void RecordAutomationEvent(unsigned int frame); // Record frame events (to internal events array)
static void PlayAutomationEvent(unsigned int frame); // Play frame events (from internal events array)
#endif
#if defined(_WIN32)
// NOTE: We declare Sleep() function symbol to avoid including windows.h (kernel32.lib linkage required)
void __stdcall Sleep(unsigned long msTimeout); // Required for: WaitTime()
#endif
#if !defined(SUPPORT_MODULE_RTEXT)
const char *TextFormat(const char *text, ...); // Formatting of text with variables to 'embed'
#endif // !SUPPORT_MODULE_RTEXT
//----------------------------------------------------------------------------------
// Module Functions Definition - Window and OpenGL Context Functions
//----------------------------------------------------------------------------------
#if defined(PLATFORM_ANDROID)
// To allow easier porting to android, we allow the user to define a
// main function which we call from android_main, defined by ourselves
extern int main(int argc, char *argv[]);
void android_main(struct android_app *app)
{
char arg0[] = "raylib"; // NOTE: argv[] are mutable
CORE.Android.app = app;
// NOTE: Return codes != 0 are skipped
(void)main(1, (char *[]) { arg0, NULL });
}
// NOTE: Add this to header (if apps really need it)
struct android_app *GetAndroidApp(void)
{
return CORE.Android.app;
}
#endif
// Initialize window and OpenGL context
// NOTE: data parameter could be used to pass any kind of required data to the initialization
void InitWindow(int width, int height, const char *title)
{
TRACELOG(LOG_INFO, "Initializing raylib %s", RAYLIB_VERSION);
TRACELOG(LOG_INFO, "Supported raylib modules:");
TRACELOG(LOG_INFO, " > rcore:..... loaded (mandatory)");
TRACELOG(LOG_INFO, " > rlgl:...... loaded (mandatory)");
#if defined(SUPPORT_MODULE_RSHAPES)
TRACELOG(LOG_INFO, " > rshapes:... loaded (optional)");
#else
TRACELOG(LOG_INFO, " > rshapes:... not loaded (optional)");
#endif
#if defined(SUPPORT_MODULE_RTEXTURES)
TRACELOG(LOG_INFO, " > rtextures:. loaded (optional)");
#else
TRACELOG(LOG_INFO, " > rtextures:. not loaded (optional)");
#endif
#if defined(SUPPORT_MODULE_RTEXT)
TRACELOG(LOG_INFO, " > rtext:..... loaded (optional)");
#else
TRACELOG(LOG_INFO, " > rtext:..... not loaded (optional)");
#endif
#if defined(SUPPORT_MODULE_RMODELS)
TRACELOG(LOG_INFO, " > rmodels:... loaded (optional)");
#else
TRACELOG(LOG_INFO, " > rmodels:... not loaded (optional)");
#endif
#if defined(SUPPORT_MODULE_RAUDIO)
TRACELOG(LOG_INFO, " > raudio:.... loaded (optional)");
#else
TRACELOG(LOG_INFO, " > raudio:.... not loaded (optional)");
#endif
if ((title != NULL) && (title[0] != 0)) CORE.Window.title = title;
// Initialize global input state
memset(&CORE.Input, 0, sizeof(CORE.Input));
CORE.Input.Keyboard.exitKey = KEY_ESCAPE;
CORE.Input.Mouse.scale = (Vector2){ 1.0f, 1.0f };
CORE.Input.Mouse.cursor = MOUSE_CURSOR_ARROW;
CORE.Input.Gamepad.lastButtonPressed = -1;
#if defined(SUPPORT_EVENTS_WAITING)
CORE.Window.eventWaiting = true;
#endif
#if defined(PLATFORM_ANDROID)
CORE.Window.screen.width = width;
CORE.Window.screen.height = height;
CORE.Window.currentFbo.width = width;
CORE.Window.currentFbo.height = height;
// Set desired windows flags before initializing anything
ANativeActivity_setWindowFlags(CORE.Android.app->activity, AWINDOW_FLAG_FULLSCREEN, 0); //AWINDOW_FLAG_SCALED, AWINDOW_FLAG_DITHER
int orientation = AConfiguration_getOrientation(CORE.Android.app->config);
if (orientation == ACONFIGURATION_ORIENTATION_PORT) TRACELOG(LOG_INFO, "ANDROID: Window orientation set as portrait");
else if (orientation == ACONFIGURATION_ORIENTATION_LAND) TRACELOG(LOG_INFO, "ANDROID: Window orientation set as landscape");
// TODO: Automatic orientation doesn't seem to work
if (width <= height)
{
AConfiguration_setOrientation(CORE.Android.app->config, ACONFIGURATION_ORIENTATION_PORT);
TRACELOG(LOG_WARNING, "ANDROID: Window orientation changed to portrait");
}
else
{
AConfiguration_setOrientation(CORE.Android.app->config, ACONFIGURATION_ORIENTATION_LAND);
TRACELOG(LOG_WARNING, "ANDROID: Window orientation changed to landscape");
}
//AConfiguration_getDensity(CORE.Android.app->config);
//AConfiguration_getKeyboard(CORE.Android.app->config);
//AConfiguration_getScreenSize(CORE.Android.app->config);
//AConfiguration_getScreenLong(CORE.Android.app->config);
// Initialize App command system
// NOTE: On APP_CMD_INIT_WINDOW -> InitGraphicsDevice(), InitTimer(), LoadFontDefault()...
CORE.Android.app->onAppCmd = AndroidCommandCallback;
// Initialize input events system
CORE.Android.app->onInputEvent = AndroidInputCallback;
// Initialize assets manager
InitAssetManager(CORE.Android.app->activity->assetManager, CORE.Android.app->activity->internalDataPath);
// Initialize base path for storage
CORE.Storage.basePath = CORE.Android.app->activity->internalDataPath;
TRACELOG(LOG_INFO, "ANDROID: App initialized successfully");
// Android ALooper_pollAll() variables
int pollResult = 0;
int pollEvents = 0;
// Wait for window to be initialized (display and context)
while (!CORE.Window.ready)
{
// Process events loop
while ((pollResult = ALooper_pollAll(0, NULL, &pollEvents, (void**)&CORE.Android.source)) >= 0)
{
// Process this event
if (CORE.Android.source != NULL) CORE.Android.source->process(CORE.Android.app, CORE.Android.source);
// NOTE: Never close window, native activity is controlled by the system!
//if (CORE.Android.app->destroyRequested != 0) CORE.Window.shouldClose = true;
}
}
#endif
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB) || defined(PLATFORM_RPI) || defined(PLATFORM_DRM)
// Initialize graphics device (display device and OpenGL context)
// NOTE: returns true if window and graphic device has been initialized successfully
CORE.Window.ready = InitGraphicsDevice(width, height);
// If graphic device is no properly initialized, we end program
if (!CORE.Window.ready)
{
TRACELOG(LOG_FATAL, "Failed to initialize Graphic Device");
return;
}
// Initialize hi-res timer
InitTimer();
// Initialize random seed
srand((unsigned int)time(NULL));
// Initialize base path for storage
CORE.Storage.basePath = GetWorkingDirectory();
#if defined(SUPPORT_MODULE_RTEXT) && defined(SUPPORT_DEFAULT_FONT)
// Load default font
// WARNING: External function: Module required: rtext
LoadFontDefault();
#if defined(SUPPORT_MODULE_RSHAPES)
Rectangle rec = GetFontDefault().recs[95];
// NOTE: We setup a 1px padding on char rectangle to avoid pixel bleeding on MSAA filtering
SetShapesTexture(GetFontDefault().texture, (Rectangle){ rec.x + 1, rec.y + 1, rec.width - 2, rec.height - 2 }); // WARNING: Module required: rshapes
#endif
#else
#if defined(SUPPORT_MODULE_RSHAPES)
// Set default texture and rectangle to be used for shapes drawing
// NOTE: rlgl default texture is a 1x1 pixel UNCOMPRESSED_R8G8B8A8
Texture2D texture = { rlGetTextureIdDefault(), 1, 1, 1, PIXELFORMAT_UNCOMPRESSED_R8G8B8A8 };
SetShapesTexture(texture, (Rectangle){ 0.0f, 0.0f, 1.0f, 1.0f }); // WARNING: Module required: rshapes
#endif
#endif
#if defined(SUPPORT_MODULE_RTEXT) && defined(SUPPORT_DEFAULT_FONT)
if ((CORE.Window.flags & FLAG_WINDOW_HIGHDPI) > 0)
{
// Set default font texture filter for HighDPI (blurry)
// RL_TEXTURE_FILTER_LINEAR - tex filter: BILINEAR, no mipmaps
rlTextureParameters(GetFontDefault().texture.id, RL_TEXTURE_MIN_FILTER, RL_TEXTURE_FILTER_LINEAR);
rlTextureParameters(GetFontDefault().texture.id, RL_TEXTURE_MAG_FILTER, RL_TEXTURE_FILTER_LINEAR);
}
#endif
#if defined(PLATFORM_RPI) || defined(PLATFORM_DRM)
// Initialize raw input system
InitEvdevInput(); // Evdev inputs initialization
InitGamepad(); // Gamepad init
InitKeyboard(); // Keyboard init (stdin)
#endif
#if defined(PLATFORM_WEB)
// Setup callback funtions for the DOM events
emscripten_set_fullscreenchange_callback("#canvas", NULL, 1, EmscriptenFullscreenChangeCallback);
// WARNING: Below resize code was breaking fullscreen mode for sample games and examples, it needs review
// Check fullscreen change events(note this is done on the window since most browsers don't support this on #canvas)
//emscripten_set_fullscreenchange_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, NULL, 1, EmscriptenResizeCallback);
// Check Resize event (note this is done on the window since most browsers don't support this on #canvas)
//emscripten_set_resize_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, NULL, 1, EmscriptenResizeCallback);
// Trigger this once to get initial window sizing
//EmscriptenResizeCallback(EMSCRIPTEN_EVENT_RESIZE, NULL, NULL);
// Support keyboard events -> Not used, GLFW.JS takes care of that
//emscripten_set_keypress_callback("#canvas", NULL, 1, EmscriptenKeyboardCallback);
//emscripten_set_keydown_callback("#canvas", NULL, 1, EmscriptenKeyboardCallback);
// Support mouse events
emscripten_set_click_callback("#canvas", NULL, 1, EmscriptenMouseCallback);
// Support touch events
emscripten_set_touchstart_callback("#canvas", NULL, 1, EmscriptenTouchCallback);
emscripten_set_touchend_callback("#canvas", NULL, 1, EmscriptenTouchCallback);
emscripten_set_touchmove_callback("#canvas", NULL, 1, EmscriptenTouchCallback);
emscripten_set_touchcancel_callback("#canvas", NULL, 1, EmscriptenTouchCallback);
// Support gamepad events (not provided by GLFW3 on emscripten)
emscripten_set_gamepadconnected_callback(NULL, 1, EmscriptenGamepadCallback);
emscripten_set_gamepaddisconnected_callback(NULL, 1, EmscriptenGamepadCallback);
#endif
CORE.Input.Mouse.currentPosition.x = (float)CORE.Window.screen.width/2.0f;
CORE.Input.Mouse.currentPosition.y = (float)CORE.Window.screen.height/2.0f;
#if defined(SUPPORT_EVENTS_AUTOMATION)
events = (AutomationEvent *)malloc(MAX_CODE_AUTOMATION_EVENTS*sizeof(AutomationEvent));
CORE.Time.frameCounter = 0;
#endif
#endif // PLATFORM_DESKTOP || PLATFORM_WEB || PLATFORM_RPI || PLATFORM_DRM
}
// Close window and unload OpenGL context
void CloseWindow(void)
{
#if defined(SUPPORT_GIF_RECORDING)
if (gifRecording)
{
MsfGifResult result = msf_gif_end(&gifState);
msf_gif_free(result);
gifRecording = false;
}
#endif
#if defined(SUPPORT_MODULE_RTEXT) && defined(SUPPORT_DEFAULT_FONT)
UnloadFontDefault(); // WARNING: Module required: rtext
#endif
rlglClose(); // De-init rlgl
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
glfwDestroyWindow(CORE.Window.handle);
glfwTerminate();
#endif
#if defined(_WIN32) && defined(SUPPORT_WINMM_HIGHRES_TIMER) && !defined(SUPPORT_BUSY_WAIT_LOOP)
timeEndPeriod(1); // Restore time period
#endif
#if defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI)
// Close surface, context and display
if (CORE.Window.device != EGL_NO_DISPLAY)
{
eglMakeCurrent(CORE.Window.device, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
if (CORE.Window.surface != EGL_NO_SURFACE)
{
eglDestroySurface(CORE.Window.device, CORE.Window.surface);
CORE.Window.surface = EGL_NO_SURFACE;
}
if (CORE.Window.context != EGL_NO_CONTEXT)
{
eglDestroyContext(CORE.Window.device, CORE.Window.context);
CORE.Window.context = EGL_NO_CONTEXT;
}
eglTerminate(CORE.Window.device);
CORE.Window.device = EGL_NO_DISPLAY;
}
#endif
#if defined(PLATFORM_DRM)
if (CORE.Window.prevFB)
{
drmModeRmFB(CORE.Window.fd, CORE.Window.prevFB);
CORE.Window.prevFB = 0;
}
if (CORE.Window.prevBO)
{
gbm_surface_release_buffer(CORE.Window.gbmSurface, CORE.Window.prevBO);
CORE.Window.prevBO = NULL;
}
if (CORE.Window.gbmSurface)
{
gbm_surface_destroy(CORE.Window.gbmSurface);
CORE.Window.gbmSurface = NULL;
}