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85850a955a
raylib/src/core.c
raysan5 85850a955a Removed additional code 
GLFW has been updated to latest version, probably this code is not
required any more due to already been integrated into library... but it
needs to be tested...
2018-03-03 16:01:24 +01:00

3779 lines
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/**********************************************************************************************
*
* raylib.core - 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 (X11 desktop)
* - PLATFORM_DESKTOP: OSX/macOS
* - PLATFORM_ANDROID: Android 4.0 (ARM, ARM64)
* - PLATFORM_RPI: Raspberry Pi 0,1,2,3 (Raspbian)
* - PLATFORM_WEB: HTML5 with asm.js (Chrome, Firefox)
* - PLATFORM_UWP: Windows 10 App, Windows Phone, Xbox One
*
* CONFIGURATION:
*
* #define PLATFORM_DESKTOP
* Windowing and input system configured for desktop platforms: Windows, Linux, OSX, FreeBSD
* 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
* Windowing and input system configured for Raspberry Pi i native mode (no X.org required, tested on Raspbian),
* 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 PLATFORM_UWP
* Universal Windows Platform support, using OpenGL ES 2.0 through ANGLE on multiple Windows platforms,
* including Windows 10 App, Windows Phone and Xbox One platforms.
*
* #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 (camera.h) and multiple predefined cameras are available: free, 1st/3rd person, orbital
*
* #define SUPPORT_GESTURES_SYSTEM
* Gestures module is included (gestures.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_BUSY_WAIT_LOOP
* Use busy wait loop for timming sync, if not defined, a high-resolution timer is setup and used
*
* #define SUPPORT_GIF_RECORDING
* Allow automatic gif recording of current screen pressing CTRL+F12, defined in KeyCallback()
*
* DEPENDENCIES:
* rglfw - Manage graphic device, OpenGL context and inputs on PLATFORM_DESKTOP (Windows, Linux, OSX. FreeBSD)
* 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) 2014-2018 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.
*
**********************************************************************************************/
// Default configuration flags (supported features)
//-------------------------------------------------
#define SUPPORT_DEFAULT_FONT
#define SUPPORT_MOUSE_GESTURES
#define SUPPORT_CAMERA_SYSTEM
#define SUPPORT_GESTURES_SYSTEM
#define SUPPORT_BUSY_WAIT_LOOP
#define SUPPORT_GIF_RECORDING
//-------------------------------------------------
#include "raylib.h"
#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
#include "rlgl.h" // raylib OpenGL abstraction layer to OpenGL 1.1, 3.3+ or ES2
#include "utils.h" // Required for: fopen() Android mapping
#define RAYMATH_IMPLEMENTATION // Use raymath as a header-only library (includes implementation)
#define RAYMATH_EXTERN_INLINE // Compile raymath functions as static inline (remember, it's a compiler hint)
#include "raymath.h" // Required for: Vector3 and Matrix functions
#if defined(SUPPORT_GESTURES_SYSTEM)
#define GESTURES_IMPLEMENTATION
#include "gestures.h" // Gestures detection functionality
#endif
#if defined(SUPPORT_CAMERA_SYSTEM) && !defined(PLATFORM_ANDROID)
#define CAMERA_IMPLEMENTATION
#include "camera.h" // Camera system functionality
#endif
#if defined(SUPPORT_GIF_RECORDING)
#define RGIF_IMPLEMENTATION
#include "external/rgif.h" // Support GIF recording
#endif
#include <stdio.h> // Standard input / output lib
#include <stdlib.h> // Required for: malloc(), free(), rand(), atexit()
#include <stdint.h> // Required for: typedef unsigned long long int uint64_t, used by hi-res timer
#include <time.h> // Required for: time() - Android/RPI hi-res timer (NOTE: Linux only!)
#include <math.h> // Required for: tan() [Used in Begin3dMode() to set perspective]
#include <string.h> // Required for: strrchr(), strcmp()
//#include <errno.h> // Macros for reporting and retrieving error conditions through error codes
#if defined(_WIN32)
#include <direct.h> // Required for: _getch(), _chdir()
#define GETCWD _getcwd // NOTE: MSDN recommends not to use getcwd(), chdir()
#define CHDIR _chdir
#else
#include "unistd.h" // Required for: getch(), chdir() (POSIX)
#define GETCWD getcwd
#define CHDIR chdir
#endif
#if defined(__linux__) || defined(PLATFORM_WEB)
#include <sys/time.h> // Required for: timespec, nanosleep(), select() - POSIX
#elif defined(__APPLE__)
#include <unistd.h> // Required for: usleep()
#endif
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
//#define GLFW_INCLUDE_NONE // Disable the standard OpenGL header inclusion on GLFW3
#include <GLFW/glfw3.h> // GLFW3 library: Windows, OpenGL context and Input management
#if defined(__linux__)
#define GLFW_EXPOSE_NATIVE_X11 // Linux specific definitions for getting
#define GLFW_EXPOSE_NATIVE_GLX // native functions like glfwGetX11Window
#include <GLFW/glfw3native.h> // which are required for hiding mouse
#endif
//#include <GL/gl.h> // OpenGL functions (GLFW3 already includes gl.h)
#if !defined(SUPPORT_BUSY_WAIT_LOOP) && defined(_WIN32)
// 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(PLATFORM_ANDROID)
//#include <android/sensor.h> // Android sensors functions (accelerometer, gyroscope, light...)
#include <android/window.h> // Defines AWINDOW_FLAG_FULLSCREEN and others
#include <android_native_app_glue.h> // Defines basic app state struct and manages activity
#include <EGL/egl.h> // Khronos EGL library - Native platform display device control functions
#include <GLES2/gl2.h> // Khronos OpenGL ES 2.0 library
#endif
#if defined(PLATFORM_RPI)
#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 (mouse input)
#include <sys/ioctl.h> // UNIX System call for device-specific input/output operations - ioctl()
#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
#include "bcm_host.h" // Raspberry Pi VideoCore IV access functions
#include "EGL/egl.h" // Khronos EGL library - Native platform display device control functions
#include "EGL/eglext.h" // Khronos EGL library - Extensions
#include "GLES2/gl2.h" // Khronos OpenGL ES 2.0 library
#endif
#if defined(PLATFORM_UWP)
#include "EGL/egl.h" // Khronos EGL library - Native platform display device control functions
#include "EGL/eglext.h" // Khronos EGL library - Extensions
#include "GLES2/gl2.h" // Khronos OpenGL ES 2.0 library
#endif
#if defined(PLATFORM_WEB)
#include <emscripten/emscripten.h>
#include <emscripten/html5.h>
#endif
//----------------------------------------------------------------------------------
// Defines and Macros
//----------------------------------------------------------------------------------
#if defined(PLATFORM_RPI)
// Old device inputs system
#define DEFAULT_KEYBOARD_DEV STDIN_FILENO // Standard input
#define DEFAULT_MOUSE_DEV "/dev/input/mouse0" // Mouse input
#define DEFAULT_TOUCH_DEV "/dev/input/event4" // Touch input virtual device (created by ts_uinput)
#define DEFAULT_GAMEPAD_DEV "/dev/input/js" // Gamepad input (base dev for all gamepads: js0, js1, ...)
// New device input events (evdev) (must be detected)
//#define DEFAULT_KEYBOARD_DEV "/dev/input/eventN"
//#define DEFAULT_MOUSE_DEV "/dev/input/eventN"
//#define DEFAULT_GAMEPAD_DEV "/dev/input/eventN"
#define MOUSE_SENSITIVITY 0.8f
#endif
#define MAX_GAMEPADS 4 // Max number of gamepads supported
#define MAX_GAMEPAD_BUTTONS 32 // Max bumber of buttons supported (per gamepad)
#define MAX_GAMEPAD_AXIS 8 // Max number of axis supported (per gamepad)
#define STORAGE_FILENAME "storage.data"
//----------------------------------------------------------------------------------
// Types and Structures Definition
//----------------------------------------------------------------------------------
// ...
//----------------------------------------------------------------------------------
// Global Variables Definition
//----------------------------------------------------------------------------------
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
static GLFWwindow *window; // Native window (graphic device)
#endif
static bool windowReady = false; // Check if window has been initialized successfully
static bool windowMinimized = false; // Check if window has been minimized
#if defined(PLATFORM_ANDROID)
static struct android_app *app; // Android activity
static struct android_poll_source *source; // Android events polling source
static int ident, events; // Android ALooper_pollAll() variables
static const char *internalDataPath; // Android internal data path to write data (/data/data/<package>/files)
static bool appEnabled = true; // Used to detec if app is active
static bool contextRebindRequired = false; // Used to know context rebind required
#endif
#if defined(PLATFORM_RPI)
static EGL_DISPMANX_WINDOW_T nativeWindow; // Native window (graphic device)
// Keyboard input variables
// NOTE: For keyboard we will use the standard input (but reconfigured...)
static struct termios defaultKeyboardSettings; // Used to store default keyboard settings
static int defaultKeyboardMode; // Used to store default keyboard mode
// Mouse input variables
static int mouseStream = -1; // Mouse device file descriptor
static bool mouseReady = false; // Flag to know if mouse is ready
static pthread_t mouseThreadId; // Mouse reading thread id
// Touch input variables
static int touchStream = -1; // Touch device file descriptor
static bool touchReady = false; // Flag to know if touch interface is ready
static pthread_t touchThreadId; // Touch reading thread id
// Gamepad input variables
static int gamepadStream[MAX_GAMEPADS] = { -1 };// Gamepad device file descriptor
static pthread_t gamepadThreadId; // Gamepad reading thread id
static char gamepadName[64]; // Gamepad name holder
#endif
#if defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI) || defined(PLATFORM_UWP)
static EGLDisplay display; // Native display device (physical screen connection)
static EGLSurface surface; // Surface to draw on, framebuffers (connected to context)
static EGLContext context; // Graphic context, mode in which drawing can be done
static EGLConfig config; // Graphic config
static uint64_t baseTime; // Base time measure for hi-res timer
static bool windowShouldClose = false; // Flag to set window for closing
#endif
#if defined(PLATFORM_UWP)
static EGLNativeWindowType uwpWindow;
#endif
// Display size-related data
static unsigned int displayWidth, displayHeight; // Display width and height (monitor, device-screen, LCD, ...)
static int screenWidth, screenHeight; // Screen width and height (used render area)
static int renderWidth, renderHeight; // Framebuffer width and height (render area, including black bars if required)
static int renderOffsetX = 0; // Offset X from render area (must be divided by 2)
static int renderOffsetY = 0; // Offset Y from render area (must be divided by 2)
static bool fullscreen = false; // Fullscreen mode (useful only for PLATFORM_DESKTOP)
static Matrix downscaleView; // Matrix to downscale view (in case screen size bigger than display size)
static bool cursorHidden = false; // Track if cursor is hidden
static bool cursorOnScreen = false; // Tracks if cursor is inside client area
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_RPI) || defined(PLATFORM_WEB) || defined(PLATFORM_UWP)
static const char *windowTitle = NULL; // Window text title...
static int screenshotCounter = 0; // Screenshots counter
// Register mouse states
static char previousMouseState[3] = { 0 }; // Registers previous mouse button state
static char currentMouseState[3] = { 0 }; // Registers current mouse button state
static int previousMouseWheelY = 0; // Registers previous mouse wheel variation
static int currentMouseWheelY = 0; // Registers current mouse wheel variation
// Register gamepads states
static bool gamepadReady[MAX_GAMEPADS] = { false }; // Flag to know if gamepad is ready
static float gamepadAxisState[MAX_GAMEPADS][MAX_GAMEPAD_AXIS]; // Gamepad axis state
static char previousGamepadState[MAX_GAMEPADS][MAX_GAMEPAD_BUTTONS]; // Previous gamepad buttons state
static char currentGamepadState[MAX_GAMEPADS][MAX_GAMEPAD_BUTTONS]; // Current gamepad buttons state
// Keyboard configuration
static int exitKey = KEY_ESCAPE; // Default exit key (ESC)
#endif
// Register keyboard states
static char previousKeyState[512] = { 0 }; // Registers previous frame key state
static char currentKeyState[512] = { 0 }; // Registers current frame key state
static int lastKeyPressed = -1; // Register last key pressed
static int lastGamepadButtonPressed = -1; // Register last gamepad button pressed
static int gamepadAxisCount = 0; // Register number of available gamepad axis
static Vector2 mousePosition; // Mouse position on screen
#if defined(PLATFORM_WEB)
static bool toggleCursorLock = false; // Ask for cursor pointer lock on next click
#endif
static Vector2 touchPosition[MAX_TOUCH_POINTS]; // Touch position on screen
#if defined(PLATFORM_DESKTOP)
static char **dropFilesPath; // Store dropped files paths as strings
static int dropFilesCount = 0; // Count stored strings
#endif
static double currentTime, previousTime; // Used to track timmings
static double updateTime, drawTime; // Time measures for update and draw
static double frameTime = 0.0; // Time measure for one frame
static double targetTime = 0.0; // Desired time for one frame, if 0 not applied
static unsigned char configFlags = 0; // Configuration flags (bit based)
static bool showLogo = false; // Track if showing logo at init is enabled
#if defined(SUPPORT_GIF_RECORDING)
static int gifFramesCounter = 0;
static bool gifRecording = false;
#endif
//----------------------------------------------------------------------------------
// Other Modules Functions Declaration (required by core)
//----------------------------------------------------------------------------------
#if defined(SUPPORT_DEFAULT_FONT)
extern void LoadDefaultFont(void); // [Module: text] Loads default font on InitWindow()
extern void UnloadDefaultFont(void); // [Module: text] Unloads default font from GPU memory
#endif
//----------------------------------------------------------------------------------
// Module specific Functions Declaration
//----------------------------------------------------------------------------------
static bool InitGraphicsDevice(int width, int height); // Initialize graphics device
static void SetupFramebufferSize(int displayWidth, int displayHeight);
static void InitTimer(void); // Initialize timer
static void Wait(float ms); // Wait for some milliseconds (stop program execution)
static bool GetKeyStatus(int key); // Returns if a key has been pressed
static bool GetMouseButtonStatus(int button); // Returns if a mouse button has been pressed
static void PollInputEvents(void); // Register user events
static void SwapBuffers(void); // Copy back buffer to front buffers
static void LogoAnimation(void); // Plays raylib logo appearing animation
static void SetupViewport(void); // Set viewport parameters
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
static void ErrorCallback(int error, const char *description); // GLFW3 Error Callback, runs on GLFW3 error
static void KeyCallback(GLFWwindow *window, int key, int scancode, int action, int mods); // GLFW3 Keyboard Callback, runs on key pressed
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 CharCallback(GLFWwindow *window, unsigned int key); // GLFW3 Char Key Callback, runs on key pressed (get char value)
static void ScrollCallback(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
static void WindowSizeCallback(GLFWwindow *window, int width, int height); // GLFW3 WindowSize Callback, runs when window is resized
static void WindowIconifyCallback(GLFWwindow *window, int iconified); // GLFW3 WindowIconify Callback, runs when window is minimized/restored
#endif
#if defined(PLATFORM_DESKTOP)
static void WindowDropCallback(GLFWwindow *window, int count, const char **paths); // GLFW3 Window Drop Callback, runs when drop files into window
#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 *e, void *userData);
static EM_BOOL EmscriptenKeyboardCallback(int eventType, const EmscriptenKeyboardEvent *keyEvent, 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)
static void InitKeyboard(void); // Init raw keyboard system (standard input reading)
static void ProcessKeyboard(void); // Process keyboard events
static void RestoreKeyboard(void); // Restore keyboard system
static void InitMouse(void); // Mouse initialization (including mouse thread)
static void *MouseThread(void *arg); // Mouse reading thread
static void InitTouch(void); // Touch device initialization (including touch thread)
static void *TouchThread(void *arg); // Touch device reading thread
static void InitGamepad(void); // Init raw gamepad input
static void *GamepadThread(void *arg); // Mouse reading thread
#endif
#if defined(PLATFORM_UWP)
// Define functions required to manage inputs
#endif
#if defined(_WIN32)
// NOTE: We include Sleep() function signature here to avoid windows.h inclusion
void __stdcall Sleep(unsigned long msTimeout); // Required for Wait()
#endif
//----------------------------------------------------------------------------------
// Module Functions Definition - Window and OpenGL Context Functions
//----------------------------------------------------------------------------------
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_RPI) || defined(PLATFORM_WEB) || defined(PLATFORM_UWP)
// 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, void *data)
{
TraceLog(LOG_INFO, "Initializing raylib (v1.9.4-dev)");
#if defined(PLATFORM_DESKTOP)
windowTitle = (char *)data;
#endif
#if defined(PLATFORM_UWP)
uwpWindow = (EGLNativeWindowType)data;
#endif
// Init hi-res timer
InitTimer();
// Init graphics device (display device and OpenGL context)
// NOTE: returns true if window and graphic device has been initialized successfully
windowReady = InitGraphicsDevice(width, height);
if (!windowReady) return;
#if defined(SUPPORT_DEFAULT_FONT)
// Load default font
// NOTE: External function (defined in module: text)
LoadDefaultFont();
#endif
#if defined(PLATFORM_RPI)
// Init raw input system
InitMouse(); // Mouse init
InitTouch(); // Touch init
InitKeyboard(); // Keyboard init
InitGamepad(); // Gamepad init
#endif
#if defined(PLATFORM_WEB)
emscripten_set_fullscreenchange_callback(0, 0, 1, EmscriptenFullscreenChangeCallback);
// Support keyboard events
emscripten_set_keypress_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);
//emscripten_set_touchstart_callback(0, NULL, 1, Emscripten_HandleTouch);
//emscripten_set_touchend_callback("#canvas", data, 0, Emscripten_HandleTouch);
// Support gamepad events (not provided by GLFW3 on emscripten)
emscripten_set_gamepadconnected_callback(NULL, 1, EmscriptenGamepadCallback);
emscripten_set_gamepaddisconnected_callback(NULL, 1, EmscriptenGamepadCallback);
#endif
mousePosition.x = (float)screenWidth/2.0f;
mousePosition.y = (float)screenHeight/2.0f;
// raylib logo appearing animation (if enabled)
if (showLogo)
{
SetTargetFPS(60);
LogoAnimation();
}
}
#endif
#if defined(PLATFORM_ANDROID)
// Initialize window and OpenGL context (and Android activity)
// NOTE: data parameter could be used to pass any kind of required data to the initialization
void InitWindow(int width, int height, void *data)
{
TraceLog(LOG_INFO, "Initializing raylib (v1.9.4-dev)");
screenWidth = width;
screenHeight = height;
// Input data is android app pointer
app = (struct android_app *)data;
internalDataPath = app->activity->internalDataPath;
// Set desired windows flags before initializing anything
ANativeActivity_setWindowFlags(app->activity, AWINDOW_FLAG_FULLSCREEN, 0); //AWINDOW_FLAG_SCALED, AWINDOW_FLAG_DITHER
//ANativeActivity_setWindowFlags(app->activity, AWINDOW_FLAG_FORCE_NOT_FULLSCREEN, AWINDOW_FLAG_FULLSCREEN);
int orientation = AConfiguration_getOrientation(app->config);
if (orientation == ACONFIGURATION_ORIENTATION_PORT) TraceLog(LOG_INFO, "PORTRAIT window orientation");
else if (orientation == ACONFIGURATION_ORIENTATION_LAND) TraceLog(LOG_INFO, "LANDSCAPE window orientation");
// TODO: Automatic orientation doesn't seem to work
if (width <= height)
{
AConfiguration_setOrientation(app->config, ACONFIGURATION_ORIENTATION_PORT);
TraceLog(LOG_WARNING, "Window set to portraid mode");
}
else
{
AConfiguration_setOrientation(app->config, ACONFIGURATION_ORIENTATION_LAND);
TraceLog(LOG_WARNING, "Window set to landscape mode");
}
//AConfiguration_getDensity(app->config);
//AConfiguration_getKeyboard(app->config);
//AConfiguration_getScreenSize(app->config);
//AConfiguration_getScreenLong(app->config);
app->onAppCmd = AndroidCommandCallback;
app->onInputEvent = AndroidInputCallback;
InitAssetManager(app->activity->assetManager);
TraceLog(LOG_INFO, "Android app initialized successfully");
// Wait for window to be initialized (display and context)
while (!windowReady)
{
// Process events loop
while ((ident = ALooper_pollAll(0, NULL, &events,(void**)&source)) >= 0)
{
// Process this event
if (source != NULL) source->process(app, source);
// NOTE: Never close window, native activity is controlled by the system!
//if (app->destroyRequested != 0) windowShouldClose = true;
}
}
}
#endif
// Close window and unload OpenGL context
void CloseWindow(void)
{
#if defined(SUPPORT_GIF_RECORDING)
if (gifRecording)
{
GifEnd();
gifRecording = false;
}
#endif
#if defined(SUPPORT_DEFAULT_FONT)
UnloadDefaultFont();
#endif
rlglClose(); // De-init rlgl
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
glfwDestroyWindow(window);
glfwTerminate();
#endif
#if !defined(SUPPORT_BUSY_WAIT_LOOP) && defined(_WIN32)
timeEndPeriod(1); // Restore time period
#endif
#if defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI) || defined(PLATFORM_UWP)
// Close surface, context and display
if (display != EGL_NO_DISPLAY)
{
eglMakeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
if (surface != EGL_NO_SURFACE)
{
eglDestroySurface(display, surface);
surface = EGL_NO_SURFACE;
}
if (context != EGL_NO_CONTEXT)
{
eglDestroyContext(display, context);
context = EGL_NO_CONTEXT;
}
eglTerminate(display);
display = EGL_NO_DISPLAY;
}
#endif
#if defined(PLATFORM_RPI)
// Wait for mouse and gamepad threads to finish before closing
// NOTE: Those threads should already have finished at this point
// because they are controlled by windowShouldClose variable
windowShouldClose = true; // Added to force threads to exit when the close window is called
pthread_join(mouseThreadId, NULL);
pthread_join(touchThreadId, NULL);
pthread_join(gamepadThreadId, NULL);
#endif
TraceLog(LOG_INFO, "Window closed successfully");
}
// Check if window has been initialized successfully
bool IsWindowReady(void)
{
return windowReady;
}
// Check if KEY_ESCAPE pressed or Close icon pressed
bool WindowShouldClose(void)
{
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
if (windowReady)
{
// While window minimized, stop loop execution
while (windowMinimized) glfwWaitEvents();
return (glfwWindowShouldClose(window));
}
else return true;
#endif
#if defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI) || defined(PLATFORM_UWP)
if (windowReady) return windowShouldClose;
else return true;
#endif
}
// Check if window has been minimized (or lost focus)
bool IsWindowMinimized(void)
{
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB) || defined(PLATFORM_UWP)
return windowMinimized;
#else
return false;
#endif
}
// Toggle fullscreen mode (only PLATFORM_DESKTOP)
void ToggleFullscreen(void)
{
#if defined(PLATFORM_DESKTOP)
fullscreen = !fullscreen; // Toggle fullscreen flag
// NOTE: glfwSetWindowMonitor() doesn't work properly (bugs)
if (fullscreen) glfwSetWindowMonitor(window, glfwGetPrimaryMonitor(), 0, 0, screenWidth, screenHeight, GLFW_DONT_CARE);
else glfwSetWindowMonitor(window, NULL, 0, 0, screenWidth, screenHeight, GLFW_DONT_CARE);
#endif
#if defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI)
TraceLog(LOG_WARNING, "Could not toggle to windowed mode");
#endif
}
// Set icon for window (only PLATFORM_DESKTOP)
void SetWindowIcon(Image image)
{
#if defined(PLATFORM_DESKTOP)
ImageFormat(&image, UNCOMPRESSED_R8G8B8A8);
GLFWimage icon[1];
icon[0].width = image.width;
icon[0].height = image.height;
icon[0].pixels = (unsigned char *)image.data;
// NOTE: We only support one image icon
glfwSetWindowIcon(window, 1, icon);
// TODO: Support multi-image icons --> image.mipmaps
#endif
}
// Set title for window (only PLATFORM_DESKTOP)
void SetWindowTitle(const char *title)
{
#if defined(PLATFORM_DESKTOP)
glfwSetWindowTitle(window, title);
#endif
}
// Set window position on screen (windowed mode)
void SetWindowPosition(int x, int y)
{
#if defined(PLATFORM_DESKTOP)
glfwSetWindowPos(window, x, y);
#endif
}
// Set monitor for the current window (fullscreen mode)
void SetWindowMonitor(int monitor)
{
#if defined(PLATFORM_DESKTOP)
int monitorCount;
GLFWmonitor** monitors = glfwGetMonitors(&monitorCount);
if ((monitor >= 0) && (monitor < monitorCount))
{
//glfwSetWindowMonitor(window, monitors[monitor], 0, 0, screenWidth, screenHeight, GLFW_DONT_CARE);
TraceLog(LOG_INFO, "Selected fullscreen monitor: [%i] %s", monitor, glfwGetMonitorName(monitors[monitor]));
}
else TraceLog(LOG_WARNING, "Selected monitor not found");
#endif
}
// Set window minimum dimensions (FLAG_WINDOW_RESIZABLE)
void SetWindowMinSize(int width, int height)
{
#if defined(PLATFORM_DESKTOP)
const GLFWvidmode *mode = glfwGetVideoMode(glfwGetPrimaryMonitor());
glfwSetWindowSizeLimits(window, width, height, mode->width, mode->height);
#endif
}
// Get current screen width
int GetScreenWidth(void)
{
return screenWidth;
}
// Get current screen height
int GetScreenHeight(void)
{
return screenHeight;
}
// Show mouse cursor
void ShowCursor()
{
#if defined(PLATFORM_DESKTOP)
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
#endif
cursorHidden = false;
}
// Hides mouse cursor
void HideCursor()
{
#if defined(PLATFORM_DESKTOP)
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
#endif
cursorHidden = true;
}
// Check if cursor is not visible
bool IsCursorHidden()
{
return cursorHidden;
}
// Enables cursor (unlock cursor)
void EnableCursor()
{
#if defined(PLATFORM_DESKTOP)
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
#endif
#if defined(PLATFORM_WEB)
toggleCursorLock = true;
#endif
cursorHidden = false;
}
// Disables cursor (lock cursor)
void DisableCursor()
{
#if defined(PLATFORM_DESKTOP)
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
#endif
#if defined(PLATFORM_WEB)
toggleCursorLock = true;
#endif
cursorHidden = true;
}
// Set background color (framebuffer clear color)
void ClearBackground(Color color)
{
rlClearColor(color.r, color.g, color.b, color.a); // Set clear color
rlClearScreenBuffers(); // Clear current framebuffers
}
// Setup canvas (framebuffer) to start drawing
void BeginDrawing(void)
{
currentTime = GetTime(); // Number of elapsed seconds since InitTimer()
updateTime = currentTime - previousTime;
previousTime = currentTime;
rlLoadIdentity(); // Reset current matrix (MODELVIEW)
rlMultMatrixf(MatrixToFloat(downscaleView)); // If downscale required, apply it here
//rlTranslatef(0.375, 0.375, 0); // HACK to have 2D pixel-perfect drawing on OpenGL 1.1
// NOTE: Not required with OpenGL 3.3+
}
// End canvas drawing and swap buffers (double buffering)
void EndDrawing(void)
{
rlglDraw(); // Draw Buffers (Only OpenGL 3+ and ES2)
#if defined(SUPPORT_GIF_RECORDING)
#define GIF_RECORD_FRAMERATE 10
if (gifRecording)
{
gifFramesCounter++;
// NOTE: We record one gif frame every 10 game frames
if ((gifFramesCounter%GIF_RECORD_FRAMERATE) == 0)
{
// Get image data for the current frame (from backbuffer)
// NOTE: This process is very slow... :(
unsigned char *screenData = rlReadScreenPixels(screenWidth, screenHeight);
GifWriteFrame(screenData, screenWidth, screenHeight, 10, 8, false);
free(screenData); // Free image data
}
if (((gifFramesCounter/15)%2) == 1)
{
DrawCircle(30, screenHeight - 20, 10, RED);
DrawText("RECORDING", 50, screenHeight - 25, 10, MAROON);
}
rlglDraw(); // Draw RECORDING message
}
#endif
SwapBuffers(); // Copy back buffer to front buffer
PollInputEvents(); // Poll user events
// Frame time control system
currentTime = GetTime();
drawTime = currentTime - previousTime;
previousTime = currentTime;
frameTime = updateTime + drawTime;
// Wait for some milliseconds...
if (frameTime < targetTime)
{
Wait((targetTime - frameTime)*1000.0f);
currentTime = GetTime();
double extraTime = currentTime - previousTime;
previousTime = currentTime;
frameTime += extraTime;
}
}
// Initialize 2D mode with custom camera (2D)
void Begin2dMode(Camera2D camera)
{
rlglDraw(); // Draw Buffers (Only OpenGL 3+ and ES2)
rlLoadIdentity(); // Reset current matrix (MODELVIEW)
// Camera rotation and scaling is always relative to target
Matrix matOrigin = MatrixTranslate(-camera.target.x, -camera.target.y, 0.0f);
Matrix matRotation = MatrixRotate((Vector3){ 0.0f, 0.0f, 1.0f }, camera.rotation*DEG2RAD);
Matrix matScale = MatrixScale(camera.zoom, camera.zoom, 1.0f);
Matrix matTranslation = MatrixTranslate(camera.offset.x + camera.target.x, camera.offset.y + camera.target.y, 0.0f);
Matrix matTransform = MatrixMultiply(MatrixMultiply(matOrigin, MatrixMultiply(matScale, matRotation)), matTranslation);
rlMultMatrixf(MatrixToFloat(matTransform));
}
// Ends 2D mode with custom camera
void End2dMode(void)
{
rlglDraw(); // Draw Buffers (Only OpenGL 3+ and ES2)
rlLoadIdentity(); // Reset current matrix (MODELVIEW)
}
// Initializes 3D mode with custom camera (3D)
void Begin3dMode(Camera camera)
{
rlglDraw(); // Draw Buffers (Only OpenGL 3+ and ES2)
rlMatrixMode(RL_PROJECTION); // Switch to projection matrix
rlPushMatrix(); // Save previous matrix, which contains the settings for the 2d ortho projection
rlLoadIdentity(); // Reset current matrix (PROJECTION)
// Setup perspective projection
float aspect = (float)screenWidth/(float)screenHeight;
double top = 0.01*tan(camera.fovy*0.5*DEG2RAD);
double right = top*aspect;
// NOTE: zNear and zFar values are important when computing depth buffer values
rlFrustum(-right, right, -top, top, 0.01, 1000.0);
rlMatrixMode(RL_MODELVIEW); // Switch back to modelview matrix
rlLoadIdentity(); // Reset current matrix (MODELVIEW)
// Setup Camera view
Matrix matView = MatrixLookAt(camera.position, camera.target, camera.up);
rlMultMatrixf(MatrixToFloat(matView)); // Multiply MODELVIEW matrix by view matrix (camera)
rlEnableDepthTest(); // Enable DEPTH_TEST for 3D
}
// Ends 3D mode and returns to default 2D orthographic mode
void End3dMode(void)
{
rlglDraw(); // Process internal buffers (update + draw)
rlMatrixMode(RL_PROJECTION); // Switch to projection matrix
rlPopMatrix(); // Restore previous matrix (PROJECTION) from matrix stack
rlMatrixMode(RL_MODELVIEW); // Get back to modelview matrix
rlLoadIdentity(); // Reset current matrix (MODELVIEW)
rlDisableDepthTest(); // Disable DEPTH_TEST for 2D
}
// Initializes render texture for drawing
void BeginTextureMode(RenderTexture2D target)
{
rlglDraw(); // Draw Buffers (Only OpenGL 3+ and ES2)
rlEnableRenderTexture(target.id); // Enable render target
rlClearScreenBuffers(); // Clear render texture buffers
// Set viewport to framebuffer size
rlViewport(0, 0, target.texture.width, target.texture.height);
rlMatrixMode(RL_PROJECTION); // Switch to PROJECTION matrix
rlLoadIdentity(); // Reset current matrix (PROJECTION)
// Set orthographic projection to current framebuffer size
// NOTE: Configured top-left corner as (0, 0)
rlOrtho(0, target.texture.width, target.texture.height, 0, 0.0f, 1.0f);
rlMatrixMode(RL_MODELVIEW); // Switch back to MODELVIEW matrix
rlLoadIdentity(); // Reset current matrix (MODELVIEW)
//rlScalef(0.0f, -1.0f, 0.0f); // Flip Y-drawing (?)
}
// Ends drawing to render texture
void EndTextureMode(void)
{
rlglDraw(); // Draw Buffers (Only OpenGL 3+ and ES2)
rlDisableRenderTexture(); // Disable render target
// Set viewport to default framebuffer size (screen size)
SetupViewport();
rlMatrixMode(RL_PROJECTION); // Switch to PROJECTION matrix
rlLoadIdentity(); // Reset current matrix (PROJECTION)
// Set orthographic projection to current framebuffer size
// NOTE: Configured top-left corner as (0, 0)
rlOrtho(0, GetScreenWidth(), GetScreenHeight(), 0, 0.0f, 1.0f);
rlMatrixMode(RL_MODELVIEW); // Switch back to MODELVIEW matrix
rlLoadIdentity(); // Reset current matrix (MODELVIEW)
}
// Returns a ray trace from mouse position
Ray GetMouseRay(Vector2 mousePosition, Camera camera)
{
Ray ray;
// Calculate normalized device coordinates
// NOTE: y value is negative
float x = (2.0f*mousePosition.x)/(float)GetScreenWidth() - 1.0f;
float y = 1.0f - (2.0f*mousePosition.y)/(float)GetScreenHeight();
float z = 1.0f;
// Store values in a vector
Vector3 deviceCoords = { x, y, z };
TraceLog(LOG_DEBUG, "Device coordinates: (%f, %f, %f)", deviceCoords.x, deviceCoords.y, deviceCoords.z);
// Calculate projection matrix from perspective
Matrix matProj = MatrixPerspective(camera.fovy*DEG2RAD, ((double)GetScreenWidth()/(double)GetScreenHeight()), 0.01, 1000.0);
// Calculate view matrix from camera look at
Matrix matView = MatrixLookAt(camera.position, camera.target, camera.up);
// Unproject far/near points
Vector3 nearPoint = rlUnproject((Vector3){ deviceCoords.x, deviceCoords.y, 0.0f }, matProj, matView);
Vector3 farPoint = rlUnproject((Vector3){ deviceCoords.x, deviceCoords.y, 1.0f }, matProj, matView);
// Calculate normalized direction vector
Vector3 direction = Vector3Subtract(farPoint, nearPoint);
Vector3Normalize(&direction);
// Apply calculated vectors to ray
ray.position = camera.position;
ray.direction = direction;
return ray;
}
// Returns the screen space position from a 3d world space position
Vector2 GetWorldToScreen(Vector3 position, Camera camera)
{
// Calculate projection matrix (from perspective instead of frustum
Matrix matProj = MatrixPerspective(camera.fovy*DEG2RAD, (double)GetScreenWidth()/(double)GetScreenHeight(), 0.01, 1000.0);
// Calculate view matrix from camera look at (and transpose it)
Matrix matView = MatrixLookAt(camera.position, camera.target, camera.up);
// Convert world position vector to quaternion
Quaternion worldPos = { position.x, position.y, position.z, 1.0f };
// Transform world position to view
QuaternionTransform(&worldPos, matView);
// Transform result to projection (clip space position)
QuaternionTransform(&worldPos, matProj);
// Calculate normalized device coordinates (inverted y)
Vector3 ndcPos = { worldPos.x/worldPos.w, -worldPos.y/worldPos.w, worldPos.z/worldPos.w };
// Calculate 2d screen position vector
Vector2 screenPosition = { (ndcPos.x + 1.0f)/2.0f*(float)GetScreenWidth(), (ndcPos.y + 1.0f)/2.0f*(float)GetScreenHeight() };
return screenPosition;
}
// Get transform matrix for camera
Matrix GetCameraMatrix(Camera camera)
{
return MatrixLookAt(camera.position, camera.target, camera.up);
}
// Set target FPS (maximum)
void SetTargetFPS(int fps)
{
if (fps < 1) targetTime = 0.0;
else targetTime = 1.0/(double)fps;
TraceLog(LOG_INFO, "Target time per frame: %02.03f milliseconds", (float)targetTime*1000);
}
// Returns current FPS
int GetFPS(void)
{
return (int)(1.0f/GetFrameTime());
}
// Returns time in seconds for last frame drawn
float GetFrameTime(void)
{
// NOTE: We round value to milliseconds
return (float)frameTime;
}
// Get elapsed time measure in seconds since InitTimer()
// NOTE: On PLATFORM_DESKTOP InitTimer() is called on InitWindow()
// NOTE: On PLATFORM_DESKTOP, timer is initialized on glfwInit()
double GetTime(void)
{
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
return glfwGetTime(); // Elapsed time since glfwInit()
#endif
#if defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI)
struct timespec ts;
clock_gettime(CLOCK_MONOTONIC, &ts);
uint64_t time = (uint64_t)ts.tv_sec*1000000000LLU + (uint64_t)ts.tv_nsec;
return (double)(time - baseTime)*1e-9; // Elapsed time since InitTimer()
#endif
}
// Returns normalized float array for a Color
float *ColorToFloat(Color color)
{
static float buffer[4];
buffer[0] = (float)color.r/255;
buffer[1] = (float)color.g/255;
buffer[2] = (float)color.b/255;
buffer[3] = (float)color.a/255;
return buffer;
}
// Returns hexadecimal value for a Color
int ColorToInt(Color color)
{
return (((int)color.r << 24) | ((int)color.g << 16) | ((int)color.b << 8) | (int)color.a);
}
// Returns HSV values for a Color
// NOTE: Hue is returned as degrees [0..360]
Vector3 ColorToHSV(Color color)
{
Vector3 rgb = { (float)color.r/255.0f, (float)color.g/255.0f, (float)color.b/255.0f };
Vector3 hsv = { 0.0f, 0.0f, 0.0f };
float min, max, delta;
min = rgb.x < rgb.y ? rgb.x : rgb.y;
min = min < rgb.z ? min : rgb.z;
max = rgb.x > rgb.y ? rgb.x : rgb.y;
max = max > rgb.z ? max : rgb.z;
hsv.z = max; // Value
delta = max - min;
if (delta < 0.00001f)
{
hsv.y = 0.0f;
hsv.x = 0.0f; // Undefined, maybe NAN?
return hsv;
}
if (max > 0.0f)
{
// NOTE: If max is 0, this divide would cause a crash
hsv.y = (delta/max); // Saturation
}
else
{
// NOTE: If max is 0, then r = g = b = 0, s = 0, h is undefined
hsv.y = 0.0f;
hsv.x = NAN; // Undefined
return hsv;
}
// NOTE: Comparing float values could not work properly
if (rgb.x >= max) hsv.x = (rgb.y - rgb.z)/delta; // Between yellow & magenta
else
{
if (rgb.y >= max) hsv.x = 2.0f + (rgb.z - rgb.x)/delta; // Between cyan & yellow
else hsv.x = 4.0f + (rgb.x - rgb.y)/delta; // Between magenta & cyan
}
hsv.x *= 60.0f; // Convert to degrees
if (hsv.x < 0.0f) hsv.x += 360.0f;
return hsv;
}
// Returns a Color struct from hexadecimal value
Color GetColor(int hexValue)
{
Color color;
color.r = (unsigned char)(hexValue >> 24) & 0xFF;
color.g = (unsigned char)(hexValue >> 16) & 0xFF;
color.b = (unsigned char)(hexValue >> 8) & 0xFF;
color.a = (unsigned char)hexValue & 0xFF;
return color;
}
// Returns a random value between min and max (both included)
int GetRandomValue(int min, int max)
{
if (min > max)
{
int tmp = max;
max = min;
min = tmp;
}
return (rand()%(abs(max-min)+1) + min);
}
// Color fade-in or fade-out, alpha goes from 0.0f to 1.0f
Color Fade(Color color, float alpha)
{
if (alpha < 0.0f) alpha = 0.0f;
else if (alpha > 1.0f) alpha = 1.0f;
return (Color){color.r, color.g, color.b, (unsigned char)(255.0f*alpha)};
}
// Activate raylib logo at startup (can be done with flags)
void ShowLogo(void)
{
showLogo = true;
}
// Setup window configuration flags (view FLAGS)
void SetConfigFlags(unsigned char flags)
{
configFlags = flags;
if (configFlags & FLAG_SHOW_LOGO) showLogo = true;
if (configFlags & FLAG_FULLSCREEN_MODE) fullscreen = true;
}
// NOTE TraceLog() function is located in [utils.h]
// Takes a screenshot of current screen (saved a .png)
void TakeScreenshot(const char *fileName)
{
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_RPI)
unsigned char *imgData = rlReadScreenPixels(renderWidth, renderHeight);
SavePNG(fileName, imgData, renderWidth, renderHeight, 4); // Save image as PNG
free(imgData);
TraceLog(LOG_INFO, "Screenshot taken: %s", fileName);
#endif
}
// Check file extension
bool IsFileExtension(const char *fileName, const char *ext)
{
bool result = false;
const char *fileExt;
if ((fileExt = strrchr(fileName, '.')) != NULL)
{
if (strcmp(fileExt, ext) == 0) result = true;
}
return result;
}
// Get pointer to extension for a filename string
const char *GetExtension(const char *fileName)
{
const char *dot = strrchr(fileName, '.');
if (!dot || dot == fileName) return "";
return (dot + 1);
}
// Get pointer to filename for a path string
const char *GetFileName(const char *filePath)
{
const char *fileName = strrchr(filePath, '\\');
if (!fileName || fileName == filePath) return filePath;
return fileName + 1;
}
// Get directory for a given fileName (with path)
const char *GetDirectoryPath(const char *fileName)
{
char *lastSlash = NULL;
static char filePath[256]; // MAX_DIRECTORY_PATH_SIZE = 256
memset(filePath, 0, 256);
lastSlash = strrchr(fileName, '\\');
strncpy(filePath, fileName, strlen(fileName) - (strlen(lastSlash) - 1));
filePath[strlen(fileName) - strlen(lastSlash)] = '\0';
return filePath;
}
// Get current working directory
const char *GetWorkingDirectory(void)
{
static char currentDir[256]; // MAX_DIRECTORY_PATH_SIZE = 256
memset(currentDir, 0, 256);
GETCWD(currentDir, 256 - 1);
return currentDir;
}
// Change working directory, returns true if success
bool ChangeDirectory(const char *dir)
{
return (CHDIR(dir) == 0);
}
#if defined(PLATFORM_DESKTOP)
// Check if a file has been dropped into window
bool IsFileDropped(void)
{
if (dropFilesCount > 0) return true;
else return false;
}
// Get dropped files names
char **GetDroppedFiles(int *count)
{
*count = dropFilesCount;
return dropFilesPath;
}
// Clear dropped files paths buffer
void ClearDroppedFiles(void)
{
if (dropFilesCount > 0)
{
for (int i = 0; i < dropFilesCount; i++) free(dropFilesPath[i]);
free(dropFilesPath);
dropFilesCount = 0;
}
}
#endif
// Save integer value to storage file (to defined position)
// NOTE: Storage positions is directly related to file memory layout (4 bytes each integer)
void StorageSaveValue(int position, int value)
{
FILE *storageFile = NULL;
char path[128];
#if defined(PLATFORM_ANDROID)
strcpy(path, internalDataPath);
strcat(path, "/");
strcat(path, STORAGE_FILENAME);
#else
strcpy(path, STORAGE_FILENAME);
#endif
// Try open existing file to append data
storageFile = fopen(path, "rb+");
// If file doesn't exist, create a new storage data file
if (!storageFile) storageFile = fopen(path, "wb");
if (!storageFile) TraceLog(LOG_WARNING, "Storage data file could not be created");
else
{
// Get file size
fseek(storageFile, 0, SEEK_END);
int fileSize = ftell(storageFile); // Size in bytes
fseek(storageFile, 0, SEEK_SET);
if (fileSize < (position*4)) TraceLog(LOG_WARNING, "Storage position could not be found");
else
{
fseek(storageFile, (position*4), SEEK_SET);
fwrite(&value, 1, 4, storageFile);
}
fclose(storageFile);
}
}
// Load integer value from storage file (from defined position)
// NOTE: If requested position could not be found, value 0 is returned
int StorageLoadValue(int position)
{
int value = 0;
char path[128];
#if defined(PLATFORM_ANDROID)
strcpy(path, internalDataPath);
strcat(path, "/");
strcat(path, STORAGE_FILENAME);
#else
strcpy(path, STORAGE_FILENAME);
#endif
// Try open existing file to append data
FILE *storageFile = fopen(path, "rb");
if (!storageFile) TraceLog(LOG_WARNING, "Storage data file could not be found");
else
{
// Get file size
fseek(storageFile, 0, SEEK_END);
int fileSize = ftell(storageFile); // Size in bytes
rewind(storageFile);
if (fileSize < (position*4)) TraceLog(LOG_WARNING, "Storage position could not be found");
else
{
fseek(storageFile, (position*4), SEEK_SET);
fread(&value, 4, 1, storageFile); // Read 1 element of 4 bytes size
}
fclose(storageFile);
}
return value;
}
//----------------------------------------------------------------------------------
// Module Functions Definition - Input (Keyboard, Mouse, Gamepad) Functions
//----------------------------------------------------------------------------------
// Detect if a key has been pressed once
bool IsKeyPressed(int key)
{
bool pressed = false;
if ((currentKeyState[key] != previousKeyState[key]) && (currentKeyState[key] == 1)) pressed = true;
else pressed = false;
return pressed;
}
// Detect if a key is being pressed (key held down)
bool IsKeyDown(int key)
{
if (GetKeyStatus(key) == 1) return true;
else return false;
}
// Detect if a key has been released once
bool IsKeyReleased(int key)
{
bool released = false;
if ((currentKeyState[key] != previousKeyState[key]) && (currentKeyState[key] == 0)) released = true;
else released = false;
return released;
}
// Detect if a key is NOT being pressed (key not held down)
bool IsKeyUp(int key)
{
if (GetKeyStatus(key) == 0) return true;
else return false;
}
// Get the last key pressed
int GetKeyPressed(void)
{
return lastKeyPressed;
}
// Set a custom key to exit program
// NOTE: default exitKey is ESCAPE
void SetExitKey(int key)
{
#if !defined(PLATFORM_ANDROID)
exitKey = key;
#endif
}
// NOTE: Gamepad support not implemented in emscripten GLFW3 (PLATFORM_WEB)
// Detect if a gamepad is available
bool IsGamepadAvailable(int gamepad)
{
bool result = false;
#if !defined(PLATFORM_ANDROID)
if ((gamepad < MAX_GAMEPADS) && gamepadReady[gamepad]) result = true;
#endif
return result;
}
// Check gamepad name (if available)
bool IsGamepadName(int gamepad, const char *name)
{
bool result = false;
#if !defined(PLATFORM_ANDROID)
const char *gamepadName = NULL;
if (gamepadReady[gamepad]) gamepadName = GetGamepadName(gamepad);
if ((name != NULL) && (gamepadName != NULL)) result = (strcmp(name, gamepadName) == 0);
#endif
return result;
}
// Return gamepad internal name id
const char *GetGamepadName(int gamepad)
{
#if defined(PLATFORM_DESKTOP)
if (gamepadReady[gamepad]) return glfwGetJoystickName(gamepad);
else return NULL;
#elif defined(PLATFORM_RPI)
if (gamepadReady[gamepad]) ioctl(gamepadStream[gamepad], JSIOCGNAME(64), &gamepadName);
return gamepadName;
#else
return NULL;
#endif
}
// Return gamepad axis count
int GetGamepadAxisCount(int gamepad)
{
#if defined(PLATFORM_RPI)
int axisCount = 0;
if (gamepadReady[gamepad]) ioctl(gamepadStream[gamepad], JSIOCGAXES, &axisCount);
gamepadAxisCount = axisCount;
#endif
return gamepadAxisCount;
}
// Return axis movement vector for a gamepad
float GetGamepadAxisMovement(int gamepad, int axis)
{
float value = 0;
#if !defined(PLATFORM_ANDROID)
if ((gamepad < MAX_GAMEPADS) && gamepadReady[gamepad] && (axis < MAX_GAMEPAD_AXIS)) value = gamepadAxisState[gamepad][axis];
#endif
return value;
}
// Detect if a gamepad button has been pressed once
bool IsGamepadButtonPressed(int gamepad, int button)
{
bool pressed = false;
#if !defined(PLATFORM_ANDROID)
if ((gamepad < MAX_GAMEPADS) && gamepadReady[gamepad] && (button < MAX_GAMEPAD_BUTTONS) &&
(currentGamepadState[gamepad][button] != previousGamepadState[gamepad][button]) &&
(currentGamepadState[gamepad][button] == 1)) pressed = true;
#endif
return pressed;
}
// Detect if a gamepad button is being pressed
bool IsGamepadButtonDown(int gamepad, int button)
{
bool result = false;
#if !defined(PLATFORM_ANDROID)
if ((gamepad < MAX_GAMEPADS) && gamepadReady[gamepad] && (button < MAX_GAMEPAD_BUTTONS) &&
(currentGamepadState[gamepad][button] == 1)) result = true;
#endif
return result;
}
// Detect if a gamepad button has NOT been pressed once
bool IsGamepadButtonReleased(int gamepad, int button)
{
bool released = false;
#if !defined(PLATFORM_ANDROID)
if ((gamepad < MAX_GAMEPADS) && gamepadReady[gamepad] && (button < MAX_GAMEPAD_BUTTONS) &&
(currentGamepadState[gamepad][button] != previousGamepadState[gamepad][button]) &&
(currentGamepadState[gamepad][button] == 0)) released = true;
#endif
return released;
}
// Detect if a mouse button is NOT being pressed
bool IsGamepadButtonUp(int gamepad, int button)
{
bool result = false;
#if !defined(PLATFORM_ANDROID)
if ((gamepad < MAX_GAMEPADS) && gamepadReady[gamepad] && (button < MAX_GAMEPAD_BUTTONS) &&
(currentGamepadState[gamepad][button] == 0)) result = true;
#endif
return result;
}
// Get the last gamepad button pressed
int GetGamepadButtonPressed(void)
{
return lastGamepadButtonPressed;
}
// Detect if a mouse button has been pressed once
bool IsMouseButtonPressed(int button)
{
bool pressed = false;
// TODO: Review, gestures could be not supported despite being on Android platform!
#if defined(PLATFORM_ANDROID)
if (IsGestureDetected(GESTURE_TAP)) pressed = true;
#else
if ((currentMouseState[button] != previousMouseState[button]) && (currentMouseState[button] == 1)) pressed = true;
#endif
return pressed;
}
// Detect if a mouse button is being pressed
bool IsMouseButtonDown(int button)
{
bool down = false;
#if defined(PLATFORM_ANDROID)
if (IsGestureDetected(GESTURE_HOLD)) down = true;
#else
if (GetMouseButtonStatus(button) == 1) down = true;
#endif
return down;
}
// Detect if a mouse button has been released once
bool IsMouseButtonReleased(int button)
{
bool released = false;
#if !defined(PLATFORM_ANDROID)
if ((currentMouseState[button] != previousMouseState[button]) && (currentMouseState[button] == 0)) released = true;
#endif
return released;
}
// Detect if a mouse button is NOT being pressed
bool IsMouseButtonUp(int button)
{
bool up = false;
#if !defined(PLATFORM_ANDROID)
if (GetMouseButtonStatus(button) == 0) up = true;
#endif
return up;
}
// Returns mouse position X
int GetMouseX(void)
{
#if defined(PLATFORM_ANDROID)
return (int)touchPosition[0].x;
#else
return (int)mousePosition.x;
#endif
}
// Returns mouse position Y
int GetMouseY(void)
{
#if defined(PLATFORM_ANDROID)
return (int)touchPosition[0].x;
#else
return (int)mousePosition.y;
#endif
}
// Returns mouse position XY
Vector2 GetMousePosition(void)
{
#if defined(PLATFORM_ANDROID)
return GetTouchPosition(0);
#else
return mousePosition;
#endif
}
// Set mouse position XY
void SetMousePosition(Vector2 position)
{
mousePosition = position;
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
// NOTE: emscripten not implemented
glfwSetCursorPos(window, position.x, position.y);
#endif
}
// Returns mouse wheel movement Y
int GetMouseWheelMove(void)
{
#if defined(PLATFORM_ANDROID)
return 0;
#elif defined(PLATFORM_WEB)
return previousMouseWheelY/100;
#else
return previousMouseWheelY;
#endif
}
// Returns touch position X for touch point 0 (relative to screen size)
int GetTouchX(void)
{
#if defined(PLATFORM_ANDROID) || defined(PLATFORM_WEB)
return (int)touchPosition[0].x;
#else // PLATFORM_DESKTOP, PLATFORM_RPI
return GetMouseX();
#endif
}
// Returns touch position Y for touch point 0 (relative to screen size)
int GetTouchY(void)
{
#if defined(PLATFORM_ANDROID) || defined(PLATFORM_WEB)
return (int)touchPosition[0].y;
#else // PLATFORM_DESKTOP, PLATFORM_RPI
return GetMouseY();
#endif
}
// Returns touch position XY for a touch point index (relative to screen size)
// TODO: Touch position should be scaled depending on display size and render size
Vector2 GetTouchPosition(int index)
{
Vector2 position = { -1.0f, -1.0f };
#if defined(PLATFORM_ANDROID) || defined(PLATFORM_WEB)
if (index < MAX_TOUCH_POINTS) position = touchPosition[index];
else TraceLog(LOG_WARNING, "Required touch point out of range (Max touch points: %i)", MAX_TOUCH_POINTS);
if ((screenWidth > displayWidth) || (screenHeight > displayHeight))
{
// TODO: Review touch position scaling for screenSize vs displaySize
position.x = position.x*((float)screenWidth/(float)(displayWidth - renderOffsetX)) - renderOffsetX/2;
position.y = position.y*((float)screenHeight/(float)(displayHeight - renderOffsetY)) - renderOffsetY/2;
}
else
{
position.x = position.x*((float)renderWidth/(float)displayWidth) - renderOffsetX/2;
position.y = position.y*((float)renderHeight/(float)displayHeight) - renderOffsetY/2;
}
#else // PLATFORM_DESKTOP, PLATFORM_RPI
if (index == 0) position = GetMousePosition();
#endif
return position;
}
//----------------------------------------------------------------------------------
// Module specific Functions Definition
//----------------------------------------------------------------------------------
// Initialize display device and framebuffer
// NOTE: width and height represent the screen (framebuffer) desired size, not actual display size
// If width or height are 0, default display size will be used for framebuffer size
// NOTE: returns false in case graphic device could not be created
static bool InitGraphicsDevice(int width, int height)
{
screenWidth = width; // User desired width
screenHeight = height; // User desired height
// NOTE: Framebuffer (render area - renderWidth, renderHeight) could include black bars...
// ...in top-down or left-right to match display aspect ratio (no weird scalings)
// Downscale matrix is required in case desired screen area is bigger than display area
downscaleView = MatrixIdentity();
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
glfwSetErrorCallback(ErrorCallback);
if (!glfwInit())
{
TraceLog(LOG_WARNING, "Failed to initialize GLFW");
return false;
}
// NOTE: Getting video modes is not implemented in emscripten GLFW3 version
#if defined(PLATFORM_DESKTOP)
// Find monitor resolution
GLFWmonitor *monitor = glfwGetPrimaryMonitor();
if (!monitor)
{
TraceLog(LOG_WARNING, "Failed to get monitor");
return false;
}
const GLFWvidmode *mode = glfwGetVideoMode(monitor);
displayWidth = mode->width;
displayHeight = mode->height;
// Screen size security check
if (screenWidth <= 0) screenWidth = displayWidth;
if (screenHeight <= 0) screenHeight = displayHeight;
#endif // defined(PLATFORM_DESKTOP)
#if defined(PLATFORM_WEB)
displayWidth = screenWidth;
displayHeight = screenHeight;
#endif // defined(PLATFORM_WEB)
glfwDefaultWindowHints(); // Set default windows hints
// Check some Window creation flags
if (configFlags & FLAG_WINDOW_RESIZABLE) glfwWindowHint(GLFW_RESIZABLE, GL_TRUE); // Resizable window
else glfwWindowHint(GLFW_RESIZABLE, GL_FALSE); // Avoid window being resizable
if (configFlags & FLAG_WINDOW_DECORATED) glfwWindowHint(GLFW_DECORATED, GL_TRUE); // Border and buttons on Window
if (configFlags & FLAG_WINDOW_TRANSPARENT)
{
// TODO: Enable transparent window (not ready yet on GLFW 3.2)
}
if (configFlags & FLAG_MSAA_4X_HINT)
{
glfwWindowHint(GLFW_SAMPLES, 4); // Enables multisampling x4 (MSAA), default is 0
TraceLog(LOG_INFO, "Trying to enable MSAA x4");
}
//glfwWindowHint(GLFW_RED_BITS, 8); // Framebuffer red color component bits
//glfwWindowHint(GLFW_DEPTH_BITS, 16); // Depthbuffer bits (24 by default)
//glfwWindowHint(GLFW_REFRESH_RATE, 0); // Refresh rate for fullscreen window
//glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_API); // Default OpenGL API to use. Alternative: GLFW_OPENGL_ES_API
//glfwWindowHint(GLFW_AUX_BUFFERS, 0); // Number of auxiliar buffers
// NOTE: When asking for an OpenGL context version, most drivers provide highest supported version
// with forward compatibility to older OpenGL versions.
// For example, if using OpenGL 1.1, driver can provide a 4.3 context forward compatible.
// Check selection OpenGL version
if (rlGetVersion() == OPENGL_21)
{
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2); // Choose OpenGL major version (just hint)
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 1); // Choose OpenGL minor version (just hint)
}
else if (rlGetVersion() == OPENGL_33)
{
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3); // Choose OpenGL major version (just hint)
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3); // Choose OpenGL minor version (just hint)
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); // Profiles Hint: Only 3.3 and above!
// Other values: GLFW_OPENGL_ANY_PROFILE, GLFW_OPENGL_COMPAT_PROFILE
#if defined(__APPLE__)
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); // OSX Requires
#else
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_FALSE); // Fordward Compatibility Hint: Only 3.3 and above!
#endif
//glfwWindowHint(GLFW_OPENGL_DEBUG_CONTEXT, GL_TRUE);
}
if (fullscreen)
{
// Obtain recommended displayWidth/displayHeight from a valid videomode for the monitor
int count;
const GLFWvidmode *modes = glfwGetVideoModes(glfwGetPrimaryMonitor(), &count);
// Get closest videomode to desired screenWidth/screenHeight
for (int i = 0; i < count; i++)
{
if (modes[i].width >= screenWidth)
{
if (modes[i].height >= screenHeight)
{
displayWidth = modes[i].width;
displayHeight = modes[i].height;
break;
}
}
}
TraceLog(LOG_WARNING, "Closest fullscreen videomode: %i x %i", displayWidth, displayHeight);
// NOTE: ISSUE: Closest videomode could not match monitor aspect-ratio, for example,
// for a desired screen size of 800x450 (16:9), closest supported videomode is 800x600 (4:3),
// framebuffer is rendered correctly but once displayed on a 16:9 monitor, it gets stretched
// by the sides to fit all monitor space...
// At this point we need to manage render size vs screen size
// NOTE: This function uses and modifies global module variables:
// screenWidth/screenHeight - renderWidth/renderHeight - downscaleView
SetupFramebufferSize(displayWidth, displayHeight);
window = glfwCreateWindow(displayWidth, displayHeight, windowTitle, glfwGetPrimaryMonitor(), NULL);
// NOTE: Full-screen change, not working properly...
//glfwSetWindowMonitor(window, glfwGetPrimaryMonitor(), 0, 0, screenWidth, screenHeight, GLFW_DONT_CARE);
}
else
{
// No-fullscreen window creation
window = glfwCreateWindow(screenWidth, screenHeight, windowTitle, NULL, NULL);
if (window)
{
#if defined(PLATFORM_DESKTOP)
// Center window on screen
int windowPosX = displayWidth/2 - screenWidth/2;
int windowPosY = displayHeight/2 - screenHeight/2;
if (windowPosX < 0) windowPosX = 0;
if (windowPosY < 0) windowPosY = 0;
glfwSetWindowPos(window, windowPosX, windowPosY);
#endif
renderWidth = screenWidth;
renderHeight = screenHeight;
}
}
if (!window)
{
glfwTerminate();
TraceLog(LOG_WARNING, "GLFW Failed to initialize Window");
return false;
}
else
{
TraceLog(LOG_INFO, "Display device initialized successfully");
#if defined(PLATFORM_DESKTOP)
TraceLog(LOG_INFO, "Display size: %i x %i", displayWidth, displayHeight);
#endif
TraceLog(LOG_INFO, "Render size: %i x %i", renderWidth, renderHeight);
TraceLog(LOG_INFO, "Screen size: %i x %i", screenWidth, screenHeight);
TraceLog(LOG_INFO, "Viewport offsets: %i, %i", renderOffsetX, renderOffsetY);
}
glfwSetWindowSizeCallback(window, WindowSizeCallback); // NOTE: Resizing not allowed by default!
glfwSetCursorEnterCallback(window, CursorEnterCallback);
glfwSetKeyCallback(window, KeyCallback);
glfwSetMouseButtonCallback(window, MouseButtonCallback);
glfwSetCursorPosCallback(window, MouseCursorPosCallback); // Track mouse position changes
glfwSetCharCallback(window, CharCallback);
glfwSetScrollCallback(window, ScrollCallback);
glfwSetWindowIconifyCallback(window, WindowIconifyCallback);
#if defined(PLATFORM_DESKTOP)
glfwSetDropCallback(window, WindowDropCallback);
#endif
glfwMakeContextCurrent(window);
// Try to disable GPU V-Sync by default, set framerate using SetTargetFPS()
// NOTE: V-Sync can be enabled by graphic driver configuration
glfwSwapInterval(0);
#if defined(PLATFORM_DESKTOP)
// Load OpenGL 3.3 extensions
// NOTE: GLFW loader function is passed as parameter
rlLoadExtensions(glfwGetProcAddress);
#endif
// Try to enable GPU V-Sync, so frames are limited to screen refresh rate (60Hz -> 60 FPS)
// NOTE: V-Sync can be enabled by graphic driver configuration
if (configFlags & FLAG_VSYNC_HINT)
{
glfwSwapInterval(1);
TraceLog(LOG_INFO, "Trying to enable VSYNC");
}
#endif // defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
#if defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI) || defined(PLATFORM_UWP)
fullscreen = true;
// Screen size security check
if (screenWidth <= 0) screenWidth = displayWidth;
if (screenHeight <= 0) screenHeight = displayHeight;
#if defined(PLATFORM_RPI)
bcm_host_init();
DISPMANX_ELEMENT_HANDLE_T dispmanElement;
DISPMANX_DISPLAY_HANDLE_T dispmanDisplay;
DISPMANX_UPDATE_HANDLE_T dispmanUpdate;
VC_RECT_T dstRect;
VC_RECT_T srcRect;
#endif
EGLint samples = 0;
EGLint sampleBuffer = 0;
if (configFlags & FLAG_MSAA_4X_HINT)
{
samples = 4;
sampleBuffer = 1;
TraceLog(LOG_INFO, "Trying to enable MSAA x4");
}
const EGLint framebufferAttribs[] =
{
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, // Type of context support -> Required on RPI?
//EGL_SURFACE_TYPE, EGL_WINDOW_BIT, // Don't use it on Android!
EGL_RED_SIZE, 8, // RED color bit depth (alternative: 5)
EGL_GREEN_SIZE, 8, // GREEN color bit depth (alternative: 6)
EGL_BLUE_SIZE, 8, // BLUE color bit depth (alternative: 5)
//EGL_ALPHA_SIZE, 8, // ALPHA bit depth (required for transparent framebuffer)
//EGL_TRANSPARENT_TYPE, EGL_NONE, // Request transparent framebuffer (EGL_TRANSPARENT_RGB does not work on RPI)
EGL_DEPTH_SIZE, 16, // Depth buffer size (Required to use Depth testing!)
//EGL_STENCIL_SIZE, 8, // Stencil buffer size
EGL_SAMPLE_BUFFERS, sampleBuffer, // Activate MSAA
EGL_SAMPLES, samples, // 4x Antialiasing if activated (Free on MALI GPUs)
EGL_NONE
};
const EGLint contextAttribs[] =
{
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
#if defined(PLATFORM_UWP)
const EGLint surfaceAttributes[] =
{
// EGL_ANGLE_SURFACE_RENDER_TO_BACK_BUFFER is part of the same optimization as EGL_ANGLE_DISPLAY_ALLOW_RENDER_TO_BACK_BUFFER (see above).
// If you have compilation issues with it then please update your Visual Studio templates.
EGL_ANGLE_SURFACE_RENDER_TO_BACK_BUFFER, EGL_TRUE,
EGL_NONE
};
const EGLint defaultDisplayAttributes[] =
{
// These are the default display attributes, used to request ANGLE's D3D11 renderer.
// eglInitialize will only succeed with these attributes if the hardware supports D3D11 Feature Level 10_0+.
EGL_PLATFORM_ANGLE_TYPE_ANGLE, EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE,
// EGL_ANGLE_DISPLAY_ALLOW_RENDER_TO_BACK_BUFFER is an optimization that can have large performance benefits on mobile devices.
// Its syntax is subject to change, though. Please update your Visual Studio templates if you experience compilation issues with it.
EGL_ANGLE_DISPLAY_ALLOW_RENDER_TO_BACK_BUFFER, EGL_TRUE,
// EGL_PLATFORM_ANGLE_ENABLE_AUTOMATIC_TRIM_ANGLE is an option that enables ANGLE to automatically call
// the IDXGIDevice3::Trim method on behalf of the application when it gets suspended.
// Calling IDXGIDevice3::Trim when an application is suspended is a Windows Store application certification requirement.
EGL_PLATFORM_ANGLE_ENABLE_AUTOMATIC_TRIM_ANGLE, EGL_TRUE,
EGL_NONE,
};
const EGLint fl9_3DisplayAttributes[] =
{
// These can be used to request ANGLE's D3D11 renderer, with D3D11 Feature Level 9_3.
// These attributes are used if the call to eglInitialize fails with the default display attributes.
EGL_PLATFORM_ANGLE_TYPE_ANGLE, EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE,
EGL_PLATFORM_ANGLE_MAX_VERSION_MAJOR_ANGLE, 9,
EGL_PLATFORM_ANGLE_MAX_VERSION_MINOR_ANGLE, 3,
EGL_ANGLE_DISPLAY_ALLOW_RENDER_TO_BACK_BUFFER, EGL_TRUE,
EGL_PLATFORM_ANGLE_ENABLE_AUTOMATIC_TRIM_ANGLE, EGL_TRUE,
EGL_NONE,
};
const EGLint warpDisplayAttributes[] =
{
// These attributes can be used to request D3D11 WARP.
// They are used if eglInitialize fails with both the default display attributes and the 9_3 display attributes.
EGL_PLATFORM_ANGLE_TYPE_ANGLE, EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE,
EGL_PLATFORM_ANGLE_DEVICE_TYPE_ANGLE, EGL_PLATFORM_ANGLE_DEVICE_TYPE_WARP_ANGLE,
EGL_ANGLE_DISPLAY_ALLOW_RENDER_TO_BACK_BUFFER, EGL_TRUE,
EGL_PLATFORM_ANGLE_ENABLE_AUTOMATIC_TRIM_ANGLE, EGL_TRUE,
EGL_NONE,
};
EGLConfig config = NULL;
// eglGetPlatformDisplayEXT is an alternative to eglGetDisplay. It allows us to pass in display attributes, used to configure D3D11.
PFNEGLGETPLATFORMDISPLAYEXTPROC eglGetPlatformDisplayEXT = (PFNEGLGETPLATFORMDISPLAYEXTPROC)(eglGetProcAddress("eglGetPlatformDisplayEXT"));
if (!eglGetPlatformDisplayEXT)
{
TraceLog(LOG_WARNING, "Failed to get function eglGetPlatformDisplayEXT");
return false;
}
//
// To initialize the display, we make three sets of calls to eglGetPlatformDisplayEXT and eglInitialize, with varying
// parameters passed to eglGetPlatformDisplayEXT:
// 1) The first calls uses "defaultDisplayAttributes" as a parameter. This corresponds to D3D11 Feature Level 10_0+.
// 2) If eglInitialize fails for step 1 (e.g. because 10_0+ isn't supported by the default GPU), then we try again
// using "fl9_3DisplayAttributes". This corresponds to D3D11 Feature Level 9_3.
// 3) If eglInitialize fails for step 2 (e.g. because 9_3+ isn't supported by the default GPU), then we try again
// using "warpDisplayAttributes". This corresponds to D3D11 Feature Level 11_0 on WARP, a D3D11 software rasterizer.
//
// This tries to initialize EGL to D3D11 Feature Level 10_0+. See above comment for details.
display = eglGetPlatformDisplayEXT(EGL_PLATFORM_ANGLE_ANGLE, EGL_DEFAULT_DISPLAY, defaultDisplayAttributes);
if (display == EGL_NO_DISPLAY)
{
TraceLog(LOG_WARNING, "Failed to initialize EGL display");
return false;
}
if (eglInitialize(display, NULL, NULL) == EGL_FALSE)
{
// This tries to initialize EGL to D3D11 Feature Level 9_3, if 10_0+ is unavailable (e.g. on some mobile devices).
display = eglGetPlatformDisplayEXT(EGL_PLATFORM_ANGLE_ANGLE, EGL_DEFAULT_DISPLAY, fl9_3DisplayAttributes);
if (display == EGL_NO_DISPLAY)
{
TraceLog(LOG_WARNING, "Failed to initialize EGL display");
return false;
}
if (eglInitialize(display, NULL, NULL) == EGL_FALSE)
{
// This initializes EGL to D3D11 Feature Level 11_0 on WARP, if 9_3+ is unavailable on the default GPU.
display = eglGetPlatformDisplayEXT(EGL_PLATFORM_ANGLE_ANGLE, EGL_DEFAULT_DISPLAY, warpDisplayAttributes);
if (display == EGL_NO_DISPLAY)
{
TraceLog(LOG_WARNING, "Failed to initialize EGL display");
return false;
}
if (eglInitialize(display, NULL, NULL) == EGL_FALSE)
{
// If all of the calls to eglInitialize returned EGL_FALSE then an error has occurred.
TraceLog(LOG_WARNING, "Failed to initialize EGL");
return false;
}
}
}
//SetupFramebufferSize(displayWidth, displayHeight);
EGLint numConfigs = 0;
if ((eglChooseConfig(display, framebufferAttribs, &config, 1, &numConfigs) == EGL_FALSE) || (numConfigs == 0))
{
TraceLog(LOG_WARNING, "Failed to choose first EGLConfig");
return false;
}
// Create a PropertySet and initialize with the EGLNativeWindowType.
//PropertySet^ surfaceCreationProperties = ref new PropertySet();
//surfaceCreationProperties->Insert(ref new String(EGLNativeWindowTypeProperty), window); // CoreWindow^ window
// You can configure the surface to render at a lower resolution and be scaled up to
// the full window size. The scaling is often free on mobile hardware.
//
// One way to configure the SwapChainPanel is to specify precisely which resolution it should render at.
// Size customRenderSurfaceSize = Size(800, 600);
// surfaceCreationProperties->Insert(ref new String(EGLRenderSurfaceSizeProperty), PropertyValue::CreateSize(customRenderSurfaceSize));
//
// Another way is to tell the SwapChainPanel to render at a certain scale factor compared to its size.
// e.g. if the SwapChainPanel is 1920x1280 then setting a factor of 0.5f will make the app render at 960x640
// float customResolutionScale = 0.5f;
// surfaceCreationProperties->Insert(ref new String(EGLRenderResolutionScaleProperty), PropertyValue::CreateSingle(customResolutionScale));
// eglCreateWindowSurface() requires a EGLNativeWindowType parameter,
// In Windows platform: typedef HWND EGLNativeWindowType;
// Property: EGLNativeWindowTypeProperty
// Type: IInspectable
// Description: Set this property to specify the window type to use for creating a surface.
// If this property is missing, surface creation will fail.
//
//const wchar_t EGLNativeWindowTypeProperty[] = L"EGLNativeWindowTypeProperty";
//https://stackoverflow.com/questions/46550182/how-to-create-eglsurface-using-c-winrt-and-angle
//surface = eglCreateWindowSurface(display, config, reinterpret_cast<IInspectable*>(surfaceCreationProperties), surfaceAttributes);
surface = eglCreateWindowSurface(display, config, uwpWindow, surfaceAttributes);
if (surface == EGL_NO_SURFACE)
{
TraceLog(LOG_WARNING, "Failed to create EGL fullscreen surface");
return false;
}
context = eglCreateContext(display, config, EGL_NO_CONTEXT, contextAttribs);
if (context == EGL_NO_CONTEXT)
{
TraceLog(LOG_WARNING, "Failed to create EGL context");
return false;
}
// Get EGL display window size
eglQuerySurface(display, surface, EGL_WIDTH, &screenWidth);
eglQuerySurface(display, surface, EGL_HEIGHT, &screenHeight);
#else // PLATFORM_ANDROID, PLATFORM_RPI
EGLint numConfigs;
// Get an EGL display connection
display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
if (display == EGL_NO_DISPLAY)
{
TraceLog(LOG_WARNING, "Failed to initialize EGL display");
return false;
}
// Initialize the EGL display connection
if (eglInitialize(display, NULL, NULL) == EGL_FALSE)
{
// If all of the calls to eglInitialize returned EGL_FALSE then an error has occurred.
TraceLog(LOG_WARNING, "Failed to initialize EGL");
return false;
}
// Get an appropriate EGL framebuffer configuration
eglChooseConfig(display, framebufferAttribs, &config, 1, &numConfigs);
// Set rendering API
eglBindAPI(EGL_OPENGL_ES_API);
// Create an EGL rendering context
context = eglCreateContext(display, config, EGL_NO_CONTEXT, contextAttribs);
if (context == EGL_NO_CONTEXT)
{
TraceLog(LOG_WARNING, "Failed to create EGL context");
return false;
}
#endif
// Create an EGL window surface
//---------------------------------------------------------------------------------
#if defined(PLATFORM_ANDROID)
EGLint displayFormat;
displayWidth = ANativeWindow_getWidth(app->window);
displayHeight = ANativeWindow_getHeight(app->window);
// EGL_NATIVE_VISUAL_ID is an attribute of the EGLConfig that is guaranteed to be accepted by ANativeWindow_setBuffersGeometry()
// As soon as we picked a EGLConfig, we can safely reconfigure the ANativeWindow buffers to match, using EGL_NATIVE_VISUAL_ID
eglGetConfigAttrib(display, config, EGL_NATIVE_VISUAL_ID, &displayFormat);
// At this point we need to manage render size vs screen size
// NOTE: This function use and modify global module variables: screenWidth/screenHeight and renderWidth/renderHeight and downscaleView
SetupFramebufferSize(displayWidth, displayHeight);
ANativeWindow_setBuffersGeometry(app->window, renderWidth, renderHeight, displayFormat);
//ANativeWindow_setBuffersGeometry(app->window, 0, 0, displayFormat); // Force use of native display size
surface = eglCreateWindowSurface(display, config, app->window, NULL);
#endif // defined(PLATFORM_ANDROID)
#if defined(PLATFORM_RPI)
graphics_get_display_size(0, &displayWidth, &displayHeight);
// At this point we need to manage render size vs screen size
// NOTE: This function use and modify global module variables: screenWidth/screenHeight and renderWidth/renderHeight and downscaleView
SetupFramebufferSize(displayWidth, displayHeight);
dstRect.x = 0;
dstRect.y = 0;
dstRect.width = displayWidth;
dstRect.height = displayHeight;
srcRect.x = 0;
srcRect.y = 0;
srcRect.width = renderWidth << 16;
srcRect.height = renderHeight << 16;
// NOTE: RPI dispmanx windowing system takes care of srcRec scaling to dstRec by hardware (no cost)
// Take care that renderWidth/renderHeight fit on displayWidth/displayHeight aspect ratio
VC_DISPMANX_ALPHA_T alpha;
alpha.flags = DISPMANX_FLAGS_ALPHA_FIXED_ALL_PIXELS;
alpha.opacity = 255; // Set transparency level for framebuffer, requires EGLAttrib: EGL_TRANSPARENT_TYPE
alpha.mask = 0;
dispmanDisplay = vc_dispmanx_display_open(0); // LCD
dispmanUpdate = vc_dispmanx_update_start(0);
dispmanElement = vc_dispmanx_element_add(dispmanUpdate, dispmanDisplay, 0/*layer*/, &dstRect, 0/*src*/,
&srcRect, DISPMANX_PROTECTION_NONE, &alpha, 0/*clamp*/, DISPMANX_NO_ROTATE);
nativeWindow.element = dispmanElement;
nativeWindow.width = renderWidth;
nativeWindow.height = renderHeight;
vc_dispmanx_update_submit_sync(dispmanUpdate);
surface = eglCreateWindowSurface(display, config, &nativeWindow, NULL);
//---------------------------------------------------------------------------------
#endif // defined(PLATFORM_RPI)
// There must be at least one frame displayed before the buffers are swapped
//eglSwapInterval(display, 1);
if (eglMakeCurrent(display, surface, surface, context) == EGL_FALSE)
{
TraceLog(LOG_WARNING, "Unable to attach EGL rendering context to EGL surface");
return false;
}
else
{
// Grab the width and height of the surface
//eglQuerySurface(display, surface, EGL_WIDTH, &renderWidth);
//eglQuerySurface(display, surface, EGL_HEIGHT, &renderHeight);
TraceLog(LOG_INFO, "Display device initialized successfully");
TraceLog(LOG_INFO, "Display size: %i x %i", displayWidth, displayHeight);
TraceLog(LOG_INFO, "Render size: %i x %i", renderWidth, renderHeight);
TraceLog(LOG_INFO, "Screen size: %i x %i", screenWidth, screenHeight);
TraceLog(LOG_INFO, "Viewport offsets: %i, %i", renderOffsetX, renderOffsetY);
}
#endif // defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI)
renderWidth = screenWidth;
renderHeight = screenHeight;
// Initialize OpenGL context (states and resources)
// NOTE: screenWidth and screenHeight not used, just stored as globals
rlglInit(screenWidth, screenHeight);
// Setup default viewport
SetupViewport();
// Initialize internal projection and modelview matrices
// NOTE: Default to orthographic projection mode with top-left corner at (0,0)
rlMatrixMode(RL_PROJECTION); // Switch to PROJECTION matrix
rlLoadIdentity(); // Reset current matrix (PROJECTION)
rlOrtho(0, renderWidth - renderOffsetX, renderHeight - renderOffsetY, 0, 0.0f, 1.0f);
rlMatrixMode(RL_MODELVIEW); // Switch back to MODELVIEW matrix
rlLoadIdentity(); // Reset current matrix (MODELVIEW)
ClearBackground(RAYWHITE); // Default background color for raylib games :P
#if defined(PLATFORM_ANDROID)
windowReady = true; // IMPORTANT!
#endif
return true;
}
// Set viewport parameters
static void SetupViewport(void)
{
#if defined(__APPLE__)
// Get framebuffer size of current window
// NOTE: Required to handle HighDPI display correctly on OSX because framebuffer
// is automatically reasized to adapt to new DPI.
// When OS does that, it can be detected using GLFW3 callback: glfwSetFramebufferSizeCallback()
int fbWidth, fbHeight;
glfwGetFramebufferSize(window, &fbWidth, &fbHeight);
rlViewport(renderOffsetX/2, renderOffsetY/2, fbWidth - renderOffsetX, fbHeight - renderOffsetY);
#else
// Initialize screen viewport (area of the screen that you will actually draw to)
// NOTE: Viewport must be recalculated if screen is resized
rlViewport(renderOffsetX/2, renderOffsetY/2, renderWidth - renderOffsetX, renderHeight - renderOffsetY);
#endif
}
// Compute framebuffer size relative to screen size and display size
// NOTE: Global variables renderWidth/renderHeight and renderOffsetX/renderOffsetY can be modified
static void SetupFramebufferSize(int displayWidth, int displayHeight)
{
// Calculate renderWidth and renderHeight, we have the display size (input params) and the desired screen size (global var)
if ((screenWidth > displayWidth) || (screenHeight > displayHeight))
{
TraceLog(LOG_WARNING, "DOWNSCALING: Required screen size (%ix%i) is bigger than display size (%ix%i)", screenWidth, screenHeight, displayWidth, displayHeight);
// Downscaling to fit display with border-bars
float widthRatio = (float)displayWidth/(float)screenWidth;
float heightRatio = (float)displayHeight/(float)screenHeight;
if (widthRatio <= heightRatio)
{
renderWidth = displayWidth;
renderHeight = (int)round((float)screenHeight*widthRatio);
renderOffsetX = 0;
renderOffsetY = (displayHeight - renderHeight);
}
else
{
renderWidth = (int)round((float)screenWidth*heightRatio);
renderHeight = displayHeight;
renderOffsetX = (displayWidth - renderWidth);
renderOffsetY = 0;
}
// NOTE: downscale matrix required!
float scaleRatio = (float)renderWidth/(float)screenWidth;
downscaleView = MatrixScale(scaleRatio, scaleRatio, scaleRatio);
// NOTE: We render to full display resolution!
// We just need to calculate above parameters for downscale matrix and offsets
renderWidth = displayWidth;
renderHeight = displayHeight;
TraceLog(LOG_WARNING, "Downscale matrix generated, content will be rendered at: %i x %i", renderWidth, renderHeight);
}
else if ((screenWidth < displayWidth) || (screenHeight < displayHeight))
{
// Required screen size is smaller than display size
TraceLog(LOG_INFO, "UPSCALING: Required screen size: %i x %i -> Display size: %i x %i", screenWidth, screenHeight, displayWidth, displayHeight);
// Upscaling to fit display with border-bars
float displayRatio = (float)displayWidth/(float)displayHeight;
float screenRatio = (float)screenWidth/(float)screenHeight;
if (displayRatio <= screenRatio)
{
renderWidth = screenWidth;
renderHeight = (int)round((float)screenWidth/displayRatio);
renderOffsetX = 0;
renderOffsetY = (renderHeight - screenHeight);
}
else
{
renderWidth = (int)round((float)screenHeight*displayRatio);
renderHeight = screenHeight;
renderOffsetX = (renderWidth - screenWidth);
renderOffsetY = 0;
}
}
else // screen == display
{
renderWidth = screenWidth;
renderHeight = screenHeight;
renderOffsetX = 0;
renderOffsetY = 0;
}
}
// Initialize hi-resolution timer
static void InitTimer(void)
{
srand(time(NULL)); // Initialize random seed
#if !defined(SUPPORT_BUSY_WAIT_LOOP) && defined(_WIN32)
timeBeginPeriod(1); // Setup high-resolution timer to 1ms (granularity of 1-2 ms)
#endif
#if defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI)
struct timespec now;
if (clock_gettime(CLOCK_MONOTONIC, &now) == 0) // Success
{
baseTime = (uint64_t)now.tv_sec*1000000000LLU + (uint64_t)now.tv_nsec;
}
else TraceLog(LOG_WARNING, "No hi-resolution timer available");
#endif
previousTime = GetTime(); // Get time as double
}
// Wait for some milliseconds (stop program execution)
// NOTE: Sleep() granularity could be around 10 ms, it means, Sleep() could
// take longer than expected... for that reason we use the busy wait loop
// http://stackoverflow.com/questions/43057578/c-programming-win32-games-sleep-taking-longer-than-expected
static void Wait(float ms)
{
#if defined(SUPPORT_BUSY_WAIT_LOOP)
double prevTime = GetTime();
double nextTime = 0.0;
// Busy wait loop
while ((nextTime - prevTime) < ms/1000.0f) nextTime = GetTime();
#else
#if defined(_WIN32)
Sleep((unsigned int)ms);
#elif defined(__linux__) || defined(PLATFORM_WEB)
struct timespec req = { 0 };
time_t sec = (int)(ms/1000.0f);
ms -= (sec*1000);
req.tv_sec = sec;
req.tv_nsec = ms*1000000L;
// NOTE: Use nanosleep() on Unix platforms... usleep() it's deprecated.
while (nanosleep(&req, &req) == -1) continue;
#elif defined(__APPLE__)
usleep(ms*1000.0f);
#endif
#endif
}
// Get one key state
static bool GetKeyStatus(int key)
{
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
return glfwGetKey(window, key);
#elif defined(PLATFORM_ANDROID)
// NOTE: Android supports up to 260 keys
if (key < 0 || key > 260) return false;
else return currentKeyState[key];
#elif defined(PLATFORM_RPI)
// NOTE: Keys states are filled in PollInputEvents()
if (key < 0 || key > 511) return false;
else return currentKeyState[key];
#endif
}
// Get one mouse button state
static bool GetMouseButtonStatus(int button)
{
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
return glfwGetMouseButton(window, button);
#elif defined(PLATFORM_ANDROID)
// TODO: Check for virtual mouse?
return false;
#elif defined(PLATFORM_RPI)
// NOTE: Mouse buttons states are filled in PollInputEvents()
return currentMouseState[button];
#endif
}
// Poll (store) all input events
static void PollInputEvents(void)
{
#if defined(SUPPORT_GESTURES_SYSTEM)
// NOTE: Gestures update must be called every frame to reset gestures correctly
// because ProcessGestureEvent() is just called on an event, not every frame
UpdateGestures();
#endif
// Reset last key pressed registered
lastKeyPressed = -1;
#if !defined(PLATFORM_RPI)
// Reset last gamepad button/axis registered state
lastGamepadButtonPressed = -1;
gamepadAxisCount = 0;
#endif
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
// Mouse input polling
double mouseX;
double mouseY;
glfwGetCursorPos(window, &mouseX, &mouseY);
mousePosition.x = (float)mouseX;
mousePosition.y = (float)mouseY;
// Keyboard input polling (automatically managed by GLFW3 through callback)
// Register previous keys states
for (int i = 0; i < 512; i++) previousKeyState[i] = currentKeyState[i];
// Register previous mouse states
for (int i = 0; i < 3; i++) previousMouseState[i] = currentMouseState[i];
previousMouseWheelY = currentMouseWheelY;
currentMouseWheelY = 0;
#endif
#if defined(PLATFORM_DESKTOP)
// Check if gamepads are ready
// NOTE: We do it here in case of disconection
for (int i = 0; i < MAX_GAMEPADS; i++)
{
if (glfwJoystickPresent(i)) gamepadReady[i] = true;
else gamepadReady[i] = false;
}
// Register gamepads buttons events
for (int i = 0; i < MAX_GAMEPADS; i++)
{
if (gamepadReady[i]) // Check if gamepad is available
{
// Register previous gamepad states
for (int k = 0; k < MAX_GAMEPAD_BUTTONS; k++) previousGamepadState[i][k] = currentGamepadState[i][k];
// Get current gamepad state
// NOTE: There is no callback available, so we get it manually
const unsigned char *buttons;
int buttonsCount;
buttons = glfwGetJoystickButtons(i, &buttonsCount);
for (int k = 0; (buttons != NULL) && (k < buttonsCount) && (buttonsCount < MAX_GAMEPAD_BUTTONS); k++)
{
if (buttons[k] == GLFW_PRESS)
{
currentGamepadState[i][k] = 1;
lastGamepadButtonPressed = k;
}
else currentGamepadState[i][k] = 0;
}
// Get current axis state
const float *axes;
int axisCount = 0;
axes = glfwGetJoystickAxes(i, &axisCount);
for (int k = 0; (axes != NULL) && (k < axisCount) && (k < MAX_GAMEPAD_AXIS); k++)
{
gamepadAxisState[i][k] = axes[k];
}
gamepadAxisCount = axisCount;
}
}
glfwPollEvents(); // Register keyboard/mouse events (callbacks)... and window events!
#endif
// Gamepad support using emscripten API
// NOTE: GLFW3 joystick functionality not available in web
#if defined(PLATFORM_WEB)
// Get number of gamepads connected
int numGamepads = emscripten_get_num_gamepads();
for (int i = 0; (i < numGamepads) && (i < MAX_GAMEPADS); i++)
{
// Register previous gamepad button states
for (int k = 0; k < MAX_GAMEPAD_BUTTONS; k++) previousGamepadState[i][k] = currentGamepadState[i][k];
EmscriptenGamepadEvent gamepadState;
int result = emscripten_get_gamepad_status(i, &gamepadState);
if (result == EMSCRIPTEN_RESULT_SUCCESS)
{
// Register buttons data for every connected gamepad
for (int j = 0; (j < gamepadState.numButtons) && (j < MAX_GAMEPAD_BUTTONS); j++)
{
if (gamepadState.digitalButton[j] == 1)
{
currentGamepadState[i][j] = 1;
lastGamepadButtonPressed = j;
}
else currentGamepadState[i][j] = 0;
//printf("Gamepad %d, button %d: Digital: %d, Analog: %g\n", gamepadState.index, j, gamepadState.digitalButton[j], gamepadState.analogButton[j]);
}
// Register axis data for every connected gamepad
for (int j = 0; (j < gamepadState.numAxes) && (j < MAX_GAMEPAD_AXIS); j++)
{
gamepadAxisState[i][j] = gamepadState.axis[j];
}
gamepadAxisCount = gamepadState.numAxes;
}
}
#endif
#if defined(PLATFORM_ANDROID)
// Register previous keys states
// NOTE: Android supports up to 260 keys
for (int i = 0; i < 260; i++) previousKeyState[i] = currentKeyState[i];
// Poll Events (registered events)
// NOTE: Activity is paused if not enabled (appEnabled)
while ((ident = ALooper_pollAll(appEnabled ? 0 : -1, NULL, &events,(void**)&source)) >= 0)
{
// Process this event
if (source != NULL) source->process(app, source);
// NOTE: Never close window, native activity is controlled by the system!
if (app->destroyRequested != 0)
{
//TraceLog(LOG_INFO, "Closing Window...");
//windowShouldClose = true;
//ANativeActivity_finish(app->activity);
}
}
#endif
#if defined(PLATFORM_RPI)
// NOTE: Mouse input events polling is done asynchonously in another pthread - MouseThread()
// NOTE: Keyboard reading could be done using input_event(s) reading or just read from stdin,
// we use method 2 (stdin) but maybe in a future we should change to method 1...
ProcessKeyboard();
// NOTE: Gamepad (Joystick) input events polling is done asynchonously in another pthread - GamepadThread()
#endif
}
// Copy back buffer to front buffers
static void SwapBuffers(void)
{
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
glfwSwapBuffers(window);
#endif
#if defined(PLATFORM_ANDROID) || defined(PLATFORM_RPI) || defined(PLATFORM_UWP)
eglSwapBuffers(display, surface);
#endif
}
#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_WEB)
// GLFW3 Error Callback, runs on GLFW3 error
static void ErrorCallback(int error, const char *description)
{
TraceLog(LOG_WARNING, "[GLFW3 Error] Code: %i Decription: %s", error, description);
}
// GLFW3 Srolling Callback, runs on mouse wheel
static void ScrollCallback(GLFWwindow *window, double xoffset, double yoffset)
{
currentMouseWheelY = (int)yoffset;
}
// GLFW3 Keyboard Callback, runs on key pressed
static void KeyCallback(GLFWwindow *window, int key, int scancode, int action, int mods)
{
if (key == exitKey && action == GLFW_PRESS)
{
glfwSetWindowShouldClose(window, GL_TRUE);
// NOTE: Before closing window, while loop must be left!
}
#if defined(PLATFORM_DESKTOP)
else if (key == GLFW_KEY_F12 && action == GLFW_PRESS)
{
#if defined(SUPPORT_GIF_RECORDING)
if (mods == GLFW_MOD_CONTROL)
{
if (gifRecording)
{
GifEnd();
gifRecording = false;
TraceLog(LOG_INFO, "End animated GIF recording");
}
else
{
gifRecording = true;
gifFramesCounter = 0;
// NOTE: delay represents the time between frames in the gif, if we capture a gif frame every
// 10 game frames and each frame trakes 16.6ms (60fps), delay between gif frames should be ~16.6*10.
GifBegin(FormatText("screenrec%03i.gif", screenshotCounter), screenWidth, screenHeight, (int)(GetFrameTime()*10.0f), 8, false);
screenshotCounter++;
TraceLog(LOG_INFO, "Begin animated GIF recording: %s", FormatText("screenrec%03i.gif", screenshotCounter));
}
}
else
#endif // SUPPORT_GIF_RECORDING
{
TakeScreenshot(FormatText("screenshot%03i.png", screenshotCounter));
screenshotCounter++;
}
}
#endif // PLATFORM_DESKTOP
else
{
currentKeyState[key] = action;
// NOTE: lastKeyPressed already registered on CharCallback()
//if (action == GLFW_PRESS) lastKeyPressed = key;
}
}
// GLFW3 Mouse Button Callback, runs on mouse button pressed
static void MouseButtonCallback(GLFWwindow *window, int button, int action, int mods)
{
currentMouseState[button] = action;
#if defined(SUPPORT_GESTURES_SYSTEM) && defined(SUPPORT_MOUSE_GESTURES)
// Process mouse events as touches to be able to use mouse-gestures
GestureEvent gestureEvent;
// Register touch actions
if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON)) gestureEvent.touchAction = TOUCH_DOWN;
else if (IsMouseButtonReleased(MOUSE_LEFT_BUTTON)) gestureEvent.touchAction = TOUCH_UP;
// NOTE: TOUCH_MOVE event is registered in MouseCursorPosCallback()
// Assign a pointer ID
gestureEvent.pointerId[0] = 0;
// Register touch points count
gestureEvent.pointCount = 1;
// Register touch points position, only one point registered
gestureEvent.position[0] = GetMousePosition();
// Normalize gestureEvent.position[0] for screenWidth and screenHeight
gestureEvent.position[0].x /= (float)GetScreenWidth();
gestureEvent.position[0].y /= (float)GetScreenHeight();
// Gesture data is sent to gestures system for processing
ProcessGestureEvent(gestureEvent);
#endif
}
// GLFW3 Cursor Position Callback, runs on mouse move
static void MouseCursorPosCallback(GLFWwindow *window, double x, double y)
{
#if defined(SUPPORT_GESTURES_SYSTEM) && defined(SUPPORT_MOUSE_GESTURES)
// Process mouse events as touches to be able to use mouse-gestures
GestureEvent gestureEvent;
gestureEvent.touchAction = TOUCH_MOVE;
// Assign a pointer ID
gestureEvent.pointerId[0] = 0;
// Register touch points count
gestureEvent.pointCount = 1;
// Register touch points position, only one point registered
gestureEvent.position[0] = (Vector2){ (float)x, (float)y };
touchPosition[0] = gestureEvent.position[0];
// Normalize gestureEvent.position[0] for screenWidth and screenHeight
gestureEvent.position[0].x /= (float)GetScreenWidth();
gestureEvent.position[0].y /= (float)GetScreenHeight();
// Gesture data is sent to gestures system for processing
ProcessGestureEvent(gestureEvent);
#endif
}
// GLFW3 Char Key Callback, runs on key down (get unicode char value)
static void CharCallback(GLFWwindow *window, unsigned int key)
{
// NOTE: Registers any key down considering OS keyboard layout but
// do not detects action events, those should be managed by user...
// https://github.com/glfw/glfw/issues/668#issuecomment-166794907
// http://www.glfw.org/docs/latest/input_guide.html#input_char
lastKeyPressed = key;
}
// GLFW3 CursorEnter Callback, when cursor enters the window
static void CursorEnterCallback(GLFWwindow *window, int enter)
{
if (enter == true) cursorOnScreen = true;
else cursorOnScreen = false;
}
// GLFW3 WindowSize Callback, runs when window is resized
// NOTE: Window resizing not allowed by default
static void WindowSizeCallback(GLFWwindow *window, int width, int height)
{
// If window is resized, viewport and projection matrix needs to be re-calculated
rlViewport(0, 0, width, height); // Set viewport width and height
rlMatrixMode(RL_PROJECTION); // Switch to PROJECTION matrix
rlLoadIdentity(); // Reset current matrix (PROJECTION)
rlOrtho(0, width, height, 0, 0.0f, 1.0f); // Orthographic projection mode with top-left corner at (0,0)
rlMatrixMode(RL_MODELVIEW); // Switch back to MODELVIEW matrix
rlLoadIdentity(); // Reset current matrix (MODELVIEW)
rlClearScreenBuffers(); // Clear screen buffers (color and depth)
// Window size must be updated to be used on 3D mode to get new aspect ratio (Begin3dMode())
// NOTE: Be careful! GLFW3 will choose the closest fullscreen resolution supported by current monitor,
// for example, if reescaling back to 800x450 (desired), it could set 720x480 (closest fullscreen supported)
screenWidth = width;
screenHeight = height;
renderWidth = width;
renderHeight = height;
// NOTE: Postprocessing texture is not scaled to new size
}
// GLFW3 WindowIconify Callback, runs when window is minimized/restored
static void WindowIconifyCallback(GLFWwindow* window, int iconified)
{
if (iconified) windowMinimized = true; // The window was iconified
else windowMinimized = false; // The window was restored
}
#endif
#if defined(PLATFORM_DESKTOP)
// GLFW3 Window Drop Callback, runs when drop files into window
// NOTE: Paths are stored in dinamic memory for further retrieval
// Everytime new files are dropped, old ones are discarded
static void WindowDropCallback(GLFWwindow *window, int count, const char **paths)
{
ClearDroppedFiles();
dropFilesPath = (char **)malloc(sizeof(char *)*count);
for (int i = 0; i < count; i++)
{
dropFilesPath[i] = (char *)malloc(sizeof(char)*256); // Max path length set to 256 char
strcpy(dropFilesPath[i], paths[i]);
}
dropFilesCount = count;
}
#endif
#if defined(PLATFORM_ANDROID)
// Android: Process activity lifecycle commands
static void AndroidCommandCallback(struct android_app *app, int32_t cmd)
{
switch (cmd)
{
case APP_CMD_START:
{
//rendering = true;
TraceLog(LOG_INFO, "APP_CMD_START");
} break;
case APP_CMD_RESUME:
{
TraceLog(LOG_INFO, "APP_CMD_RESUME");
} break;
case APP_CMD_INIT_WINDOW:
{
TraceLog(LOG_INFO, "APP_CMD_INIT_WINDOW");
if (app->window != NULL)
{
if (contextRebindRequired)
{
// Reset screen scaling to full display size
EGLint displayFormat;
eglGetConfigAttrib(display, config, EGL_NATIVE_VISUAL_ID, &displayFormat);
ANativeWindow_setBuffersGeometry(app->window, renderWidth, renderHeight, displayFormat);
// Recreate display surface and re-attach OpenGL context
surface = eglCreateWindowSurface(display, config, app->window, NULL);
eglMakeCurrent(display, surface, surface, context);
contextRebindRequired = false;
}
else
{
// Init graphics device (display device and OpenGL context)
InitGraphicsDevice(screenWidth, screenHeight);
// Init hi-res timer
InitTimer();
#if defined(SUPPORT_DEFAULT_FONT)
// Load default font
// NOTE: External function (defined in module: text)
LoadDefaultFont();
#endif
// TODO: GPU assets reload in case of lost focus (lost context)
// NOTE: This problem has been solved just unbinding and rebinding context from display
/*
if (assetsReloadRequired)
{
for (int i = 0; i < assetsCount; i++)
{
// TODO: Unload old asset if required
// Load texture again to pointed texture
(*textureAsset + i) = LoadTexture(assetPath[i]);
}
}
*/
// raylib logo appearing animation (if enabled)
if (showLogo)
{
SetTargetFPS(60); // Not required on Android
LogoAnimation();
}
}
}
} break;
case APP_CMD_GAINED_FOCUS:
{
TraceLog(LOG_INFO, "APP_CMD_GAINED_FOCUS");
appEnabled = true;
//ResumeMusicStream();
} break;
case APP_CMD_PAUSE:
{
TraceLog(LOG_INFO, "APP_CMD_PAUSE");
} break;
case APP_CMD_LOST_FOCUS:
{
//DrawFrame();
TraceLog(LOG_INFO, "APP_CMD_LOST_FOCUS");
appEnabled = false;
//PauseMusicStream();
} break;
case APP_CMD_TERM_WINDOW:
{
// Dettach OpenGL context and destroy display surface
// NOTE 1: Detaching context before destroying display surface avoids losing our resources (textures, shaders, VBOs...)
// NOTE 2: In some cases (too many context loaded), OS could unload context automatically... :(
eglMakeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
eglDestroySurface(display, surface);
contextRebindRequired = true;
TraceLog(LOG_INFO, "APP_CMD_TERM_WINDOW");
} break;
case APP_CMD_SAVE_STATE:
{
TraceLog(LOG_INFO, "APP_CMD_SAVE_STATE");
} break;
case APP_CMD_STOP:
{
TraceLog(LOG_INFO, "APP_CMD_STOP");
} break;
case APP_CMD_DESTROY:
{
// TODO: Finish activity?
//ANativeActivity_finish(app->activity);
TraceLog(LOG_INFO, "APP_CMD_DESTROY");
} break;
case APP_CMD_CONFIG_CHANGED:
{
//AConfiguration_fromAssetManager(app->config, app->activity->assetManager);
//print_cur_config(app);
// Check screen orientation here!
TraceLog(LOG_INFO, "APP_CMD_CONFIG_CHANGED");
} break;
default: break;
}
}
// Android: Get input events
static int32_t AndroidInputCallback(struct android_app *app, AInputEvent *event)
{
//http://developer.android.com/ndk/reference/index.html
int type = AInputEvent_getType(event);
if (type == AINPUT_EVENT_TYPE_MOTION)
{
// Get first touch position
touchPosition[0].x = AMotionEvent_getX(event, 0);
touchPosition[0].y = AMotionEvent_getY(event, 0);
// Get second touch position
touchPosition[1].x = AMotionEvent_getX(event, 1);
touchPosition[1].y = AMotionEvent_getY(event, 1);
}
else if (type == AINPUT_EVENT_TYPE_KEY)
{
int32_t keycode = AKeyEvent_getKeyCode(event);
//int32_t AKeyEvent_getMetaState(event);
// Save current button and its state
// NOTE: Android key action is 0 for down and 1 for up
if (AKeyEvent_getAction(event) == 0)
{
currentKeyState[keycode] = 1; // Key down
lastKeyPressed = keycode;
}
else currentKeyState[keycode] = 0; // Key up
if (keycode == AKEYCODE_POWER)
{
// Let the OS handle input to avoid app stuck. Behaviour: CMD_PAUSE -> CMD_SAVE_STATE -> CMD_STOP -> CMD_CONFIG_CHANGED -> CMD_LOST_FOCUS
// Resuming Behaviour: CMD_START -> CMD_RESUME -> CMD_CONFIG_CHANGED -> CMD_CONFIG_CHANGED -> CMD_GAINED_FOCUS
// It seems like locking mobile, screen size (CMD_CONFIG_CHANGED) is affected.
// NOTE: AndroidManifest.xml must have <activity android:configChanges="orientation|keyboardHidden|screenSize" >
// Before that change, activity was calling CMD_TERM_WINDOW and CMD_DESTROY when locking mobile, so that was not a normal behaviour
return 0;
}
else if ((keycode == AKEYCODE_BACK) || (keycode == AKEYCODE_MENU))
{
// Eat BACK_BUTTON and AKEYCODE_MENU, just do nothing... and don't let to be handled by OS!
return 1;
}
else if ((keycode == AKEYCODE_VOLUME_UP) || (keycode == AKEYCODE_VOLUME_DOWN))
{
// Set default OS behaviour
return 0;
}
}
int32_t action = AMotionEvent_getAction(event);
unsigned int flags = action & AMOTION_EVENT_ACTION_MASK;
#if defined(SUPPORT_GESTURES_SYSTEM)
GestureEvent gestureEvent;
// Register touch actions
if (flags == AMOTION_EVENT_ACTION_DOWN) gestureEvent.touchAction = TOUCH_DOWN;
else if (flags == AMOTION_EVENT_ACTION_UP) gestureEvent.touchAction = TOUCH_UP;
else if (flags == AMOTION_EVENT_ACTION_MOVE) gestureEvent.touchAction = TOUCH_MOVE;
// Register touch points count
gestureEvent.pointCount = AMotionEvent_getPointerCount(event);
// Register touch points id
gestureEvent.pointerId[0] = AMotionEvent_getPointerId(event, 0);
gestureEvent.pointerId[1] = AMotionEvent_getPointerId(event, 1);
// Register touch points position
// NOTE: Only two points registered
gestureEvent.position[0] = (Vector2){ AMotionEvent_getX(event, 0), AMotionEvent_getY(event, 0) };
gestureEvent.position[1] = (Vector2){ AMotionEvent_getX(event, 1), AMotionEvent_getY(event, 1) };
// Normalize gestureEvent.position[x] for screenWidth and screenHeight
gestureEvent.position[0].x /= (float)GetScreenWidth();
gestureEvent.position[0].y /= (float)GetScreenHeight();
gestureEvent.position[1].x /= (float)GetScreenWidth();
gestureEvent.position[1].y /= (float)GetScreenHeight();
// Gesture data is sent to gestures system for processing
ProcessGestureEvent(gestureEvent);
#else
// Support only simple touch position
if (flags == AMOTION_EVENT_ACTION_DOWN)
{
// Get first touch position
touchPosition[0].x = AMotionEvent_getX(event, 0);
touchPosition[0].y = AMotionEvent_getY(event, 0);
touchPosition[0].x /= (float)GetScreenWidth();
touchPosition[0].y /= (float)GetScreenHeight();
}
#endif
return 0;
}
#endif
#if defined(PLATFORM_WEB)
// Register fullscreen change events
static EM_BOOL EmscriptenFullscreenChangeCallback(int eventType, const EmscriptenFullscreenChangeEvent *e, void *userData)
{
//isFullscreen: int e->isFullscreen
//fullscreenEnabled: int e->fullscreenEnabled
//fs element nodeName: (char *) e->nodeName
//fs element id: (char *) e->id
//Current element size: (int) e->elementWidth, (int) e->elementHeight
//Screen size:(int) e->screenWidth, (int) e->screenHeight
if (e->isFullscreen)
{
TraceLog(LOG_INFO, "Canvas scaled to fullscreen. ElementSize: (%ix%i), ScreenSize(%ix%i)", e->elementWidth, e->elementHeight, e->screenWidth, e->screenHeight);
}
else
{
TraceLog(LOG_INFO, "Canvas scaled to windowed. ElementSize: (%ix%i), ScreenSize(%ix%i)", e->elementWidth, e->elementHeight, e->screenWidth, e->screenHeight);
}
// TODO: Depending on scaling factor (screen vs element), calculate factor to scale mouse/touch input
return 0;
}
// Register keyboard input events
static EM_BOOL EmscriptenKeyboardCallback(int eventType, const EmscriptenKeyboardEvent *keyEvent, void *userData)
{
if ((eventType == EMSCRIPTEN_EVENT_KEYPRESS) && (strcmp(keyEvent->code, "Escape") == 0))
{
emscripten_exit_pointerlock();
}
return 0;
}
// Register mouse input events
static EM_BOOL EmscriptenMouseCallback(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData)
{
// Lock mouse pointer when click on screen
if ((eventType == EMSCRIPTEN_EVENT_CLICK) && toggleCursorLock)
{
EmscriptenPointerlockChangeEvent plce;
emscripten_get_pointerlock_status(&plce);
if (!plce.isActive) emscripten_request_pointerlock(0, 1);
else
{
emscripten_exit_pointerlock();
emscripten_get_pointerlock_status(&plce);
//if (plce.isActive) TraceLog(LOG_WARNING, "Pointer lock exit did not work!");
}
toggleCursorLock = false;
}
return 0;
}
// Register touch input events
static EM_BOOL EmscriptenTouchCallback(int eventType, const EmscriptenTouchEvent *touchEvent, void *userData)
{
/*
for (int i = 0; i < touchEvent->numTouches; i++)
{
long x, y, id;
if (!touchEvent->touches[i].isChanged) continue;
id = touchEvent->touches[i].identifier;
x = touchEvent->touches[i].canvasX;
y = touchEvent->touches[i].canvasY;
}
printf("%s, numTouches: %d %s%s%s%s\n", emscripten_event_type_to_string(eventType), event->numTouches,
event->ctrlKey ? " CTRL" : "", event->shiftKey ? " SHIFT" : "", event->altKey ? " ALT" : "", event->metaKey ? " META" : "");
for (int i = 0; i < event->numTouches; ++i)
{
const EmscriptenTouchPoint *t = &event->touches[i];
printf(" %ld: screen: (%ld,%ld), client: (%ld,%ld), page: (%ld,%ld), isChanged: %d, onTarget: %d, canvas: (%ld, %ld)\n",
t->identifier, t->screenX, t->screenY, t->clientX, t->clientY, t->pageX, t->pageY, t->isChanged, t->onTarget, t->canvasX, t->canvasY);
}
*/
GestureEvent gestureEvent;
// Register touch actions
if (eventType == EMSCRIPTEN_EVENT_TOUCHSTART) gestureEvent.touchAction = TOUCH_DOWN;
else if (eventType == EMSCRIPTEN_EVENT_TOUCHEND) gestureEvent.touchAction = TOUCH_UP;
else if (eventType == EMSCRIPTEN_EVENT_TOUCHMOVE) gestureEvent.touchAction = TOUCH_MOVE;
// Register touch points count
gestureEvent.pointCount = touchEvent->numTouches;
// Register touch points id
gestureEvent.pointerId[0] = touchEvent->touches[0].identifier;
gestureEvent.pointerId[1] = touchEvent->touches[1].identifier;
// Register touch points position
// NOTE: Only two points registered
// TODO: Touch data should be scaled accordingly!
//gestureEvent.position[0] = (Vector2){ touchEvent->touches[0].canvasX, touchEvent->touches[0].canvasY };
//gestureEvent.position[1] = (Vector2){ touchEvent->touches[1].canvasX, touchEvent->touches[1].canvasY };
gestureEvent.position[0] = (Vector2){ touchEvent->touches[0].targetX, touchEvent->touches[0].targetY };
gestureEvent.position[1] = (Vector2){ touchEvent->touches[1].targetX, touchEvent->touches[1].targetY };
touchPosition[0] = gestureEvent.position[0];
touchPosition[1] = gestureEvent.position[1];
// Normalize gestureEvent.position[x] for screenWidth and screenHeight
gestureEvent.position[0].x /= (float)GetScreenWidth();
gestureEvent.position[0].y /= (float)GetScreenHeight();
gestureEvent.position[1].x /= (float)GetScreenWidth();
gestureEvent.position[1].y /= (float)GetScreenHeight();
// Gesture data is sent to gestures system for processing
ProcessGestureEvent(gestureEvent);
return 1;
}
// Register connected/disconnected gamepads events
static EM_BOOL EmscriptenGamepadCallback(int eventType, const EmscriptenGamepadEvent *gamepadEvent, void *userData)
{
/*
printf("%s: timeStamp: %g, connected: %d, index: %ld, numAxes: %d, numButtons: %d, id: \"%s\", mapping: \"%s\"\n",
eventType != 0 ? emscripten_event_type_to_string(eventType) : "Gamepad state",
gamepadEvent->timestamp, gamepadEvent->connected, gamepadEvent->index, gamepadEvent->numAxes, gamepadEvent->numButtons, gamepadEvent->id, gamepadEvent->mapping);
for(int i = 0; i < gamepadEvent->numAxes; ++i) printf("Axis %d: %g\n", i, gamepadEvent->axis[i]);
for(int i = 0; i < gamepadEvent->numButtons; ++i) printf("Button %d: Digital: %d, Analog: %g\n", i, gamepadEvent->digitalButton[i], gamepadEvent->analogButton[i]);
*/
if ((gamepadEvent->connected) && (gamepadEvent->index < MAX_GAMEPADS)) gamepadReady[gamepadEvent->index] = true;
else gamepadReady[gamepadEvent->index] = false;
// TODO: Test gamepadEvent->index
return 0;
}
#endif
#if defined(PLATFORM_RPI)
// Initialize Keyboard system (using standard input)
static void InitKeyboard(void)
{
// NOTE: We read directly from Standard Input (stdin) - STDIN_FILENO file descriptor
// Make stdin non-blocking (not enough, need to configure to non-canonical mode)
int flags = fcntl(STDIN_FILENO, F_GETFL, 0); // F_GETFL: Get the file access mode and the file status flags
fcntl(STDIN_FILENO, F_SETFL, flags | O_NONBLOCK); // F_SETFL: Set the file status flags to the value specified
// Save terminal keyboard settings and reconfigure terminal with new settings
struct termios keyboardNewSettings;
tcgetattr(STDIN_FILENO, &defaultKeyboardSettings); // Get current keyboard settings
keyboardNewSettings = defaultKeyboardSettings;
// New terminal settings for keyboard: turn off buffering (non-canonical mode), echo and key processing
// NOTE: ISIG controls if ^C and ^Z generate break signals or not
keyboardNewSettings.c_lflag &= ~(ICANON | ECHO | ISIG);
//keyboardNewSettings.c_iflag &= ~(ISTRIP | INLCR | ICRNL | IGNCR | IXON | IXOFF);
keyboardNewSettings.c_cc[VMIN] = 1;
keyboardNewSettings.c_cc[VTIME] = 0;
// Set new keyboard settings (change occurs immediately)
tcsetattr(STDIN_FILENO, TCSANOW, &keyboardNewSettings);
// NOTE: Reading directly from stdin will give chars already key-mapped by kernel to ASCII or UNICODE, we change that! -> WHY???
// Save old keyboard mode to restore it at the end
if (ioctl(STDIN_FILENO, KDGKBMODE, &defaultKeyboardMode) < 0)
{
// NOTE: It could mean we are using a remote keyboard through ssh!
TraceLog(LOG_WARNING, "Could not change keyboard mode (SSH keyboard?)");
}
else
{
// We reconfigure keyboard mode to get:
// - scancodes (K_RAW)
// - keycodes (K_MEDIUMRAW)
// - ASCII chars (K_XLATE)
// - UNICODE chars (K_UNICODE)
ioctl(STDIN_FILENO, KDSKBMODE, K_XLATE);
}
// Register keyboard restore when program finishes
atexit(RestoreKeyboard);
}
// Process keyboard inputs
// TODO: Most probably input reading and processing should be in a separate thread
static void ProcessKeyboard(void)
{
#define MAX_KEYBUFFER_SIZE 32 // Max size in bytes to read
// Keyboard input polling (fill keys[256] array with status)
int bufferByteCount = 0; // Bytes available on the buffer
char keysBuffer[MAX_KEYBUFFER_SIZE]; // Max keys to be read at a time
// Reset pressed keys array
for (int i = 0; i < 512; i++) currentKeyState[i] = 0;
// Read availables keycodes from stdin
bufferByteCount = read(STDIN_FILENO, keysBuffer, MAX_KEYBUFFER_SIZE); // POSIX system call
// Fill all read bytes (looking for keys)
for (int i = 0; i < bufferByteCount; i++)
{
TraceLog(LOG_DEBUG, "Bytes on keysBuffer: %i", bufferByteCount);
//printf("Key(s) bytes: ");
//for (int i = 0; i < bufferByteCount; i++) printf("0x%02x ", keysBuffer[i]);
//printf("\n");
// NOTE: If (key == 0x1b), depending on next key, it could be a special keymap code!
// Up -> 1b 5b 41 / Left -> 1b 5b 44 / Right -> 1b 5b 43 / Down -> 1b 5b 42
if (keysBuffer[i] == 0x1b)
{
// Detect ESC to stop program
if (bufferByteCount == 1) currentKeyState[256] = 1; // raylib key: KEY_ESCAPE
else
{
if (keysBuffer[i + 1] == 0x5b) // Special function key
{
if ((keysBuffer[i + 2] == 0x5b) || (keysBuffer[i + 2] == 0x31) || (keysBuffer[i + 2] == 0x32))
{
// Process special function keys (F1 - F12)
switch (keysBuffer[i + 3])
{
case 0x41: currentKeyState[290] = 1; break; // raylib KEY_F1
case 0x42: currentKeyState[291] = 1; break; // raylib KEY_F2
case 0x43: currentKeyState[292] = 1; break; // raylib KEY_F3
case 0x44: currentKeyState[293] = 1; break; // raylib KEY_F4
case 0x45: currentKeyState[294] = 1; break; // raylib KEY_F5
case 0x37: currentKeyState[295] = 1; break; // raylib KEY_F6
case 0x38: currentKeyState[296] = 1; break; // raylib KEY_F7
case 0x39: currentKeyState[297] = 1; break; // raylib KEY_F8
case 0x30: currentKeyState[298] = 1; break; // raylib KEY_F9
case 0x31: currentKeyState[299] = 1; break; // raylib KEY_F10
case 0x33: currentKeyState[300] = 1; break; // raylib KEY_F11
case 0x34: currentKeyState[301] = 1; break; // raylib KEY_F12
default: break;
}
if (keysBuffer[i + 2] == 0x5b) i += 4;
else if ((keysBuffer[i + 2] == 0x31) || (keysBuffer[i + 2] == 0x32)) i += 5;
}
else
{
switch (keysBuffer[i + 2])
{
case 0x41: currentKeyState[265] = 1; break; // raylib KEY_UP
case 0x42: currentKeyState[264] = 1; break; // raylib KEY_DOWN
case 0x43: currentKeyState[262] = 1; break; // raylib KEY_RIGHT
case 0x44: currentKeyState[263] = 1; break; // raylib KEY_LEFT
default: break;
}
i += 3; // Jump to next key
}
// NOTE: Some keys are not directly keymapped (CTRL, ALT, SHIFT)
}
}
}
else if (keysBuffer[i] == 0x0a) currentKeyState[257] = 1; // raylib KEY_ENTER (don't mix with <linux/input.h> KEY_*)
else if (keysBuffer[i] == 0x7f) currentKeyState[259] = 1; // raylib KEY_BACKSPACE
else
{
TraceLog(LOG_DEBUG, "Pressed key (ASCII): 0x%02x", keysBuffer[i]);
// Translate lowercase a-z letters to A-Z
if ((keysBuffer[i] >= 97) && (keysBuffer[i] <= 122))
{
currentKeyState[(int)keysBuffer[i] - 32] = 1;
}
else currentKeyState[(int)keysBuffer[i]] = 1;
}
}
// Check exit key (same functionality as GLFW3 KeyCallback())
if (currentKeyState[exitKey] == 1) windowShouldClose = true;
// Check screen capture key (raylib key: KEY_F12)
if (currentKeyState[301] == 1)
{
TakeScreenshot(FormatText("screenshot%03i.png", screenshotCounter));
screenshotCounter++;
}
}
// Restore default keyboard input
static void RestoreKeyboard(void)
{
// Reset to default keyboard settings
tcsetattr(STDIN_FILENO, TCSANOW, &defaultKeyboardSettings);
// Reconfigure keyboard to default mode
ioctl(STDIN_FILENO, KDSKBMODE, defaultKeyboardMode);
}
// Mouse initialization (including mouse thread)
static void InitMouse(void)
{
// NOTE: We can use /dev/input/mice to read from all available mice
if ((mouseStream = open(DEFAULT_MOUSE_DEV, O_RDONLY|O_NONBLOCK)) < 0)
{
TraceLog(LOG_WARNING, "Mouse device could not be opened, no mouse available");
}
else
{
mouseReady = true;
int error = pthread_create(&mouseThreadId, NULL, &MouseThread, NULL);
if (error != 0) TraceLog(LOG_WARNING, "Error creating mouse input event thread");
else TraceLog(LOG_INFO, "Mouse device initialized successfully");
}
}
// Mouse reading thread
// NOTE: We need a separate thread to avoid loosing mouse events,
// if too much time passes between reads, queue gets full and new events override older ones...
static void *MouseThread(void *arg)
{
const unsigned char XSIGN = (1 << 4);
const unsigned char YSIGN = (1 << 5);
typedef struct {
char buttons;
char dx, dy;
} MouseEvent;
MouseEvent mouse;
int mouseRelX = 0;
int mouseRelY = 0;
while (!windowShouldClose)
{
if (read(mouseStream, &mouse, sizeof(MouseEvent)) == (int)sizeof(MouseEvent))
{
if ((mouse.buttons & 0x08) == 0) break; // This bit should always be set
// Check Left button pressed
if ((mouse.buttons & 0x01) > 0) currentMouseState[0] = 1;
else currentMouseState[0] = 0;
// Check Right button pressed
if ((mouse.buttons & 0x02) > 0) currentMouseState[1] = 1;
else currentMouseState[1] = 0;
// Check Middle button pressed
if ((mouse.buttons & 0x04) > 0) currentMouseState[2] = 1;
else currentMouseState[2] = 0;
mouseRelX = (int)mouse.dx;
mouseRelY = (int)mouse.dy;
if ((mouse.buttons & XSIGN) > 0) mouseRelX = -1*(255 - mouseRelX);
if ((mouse.buttons & YSIGN) > 0) mouseRelY = -1*(255 - mouseRelY);
// NOTE: Mouse movement is normalized to not be screen resolution dependant
// We suppose 2*255 (max relative movement) is equivalent to screenWidth (max pixels width)
// Result after normalization is multiplied by MOUSE_SENSITIVITY factor
mousePosition.x += (float)mouseRelX*((float)screenWidth/(2*255))*MOUSE_SENSITIVITY;
mousePosition.y -= (float)mouseRelY*((float)screenHeight/(2*255))*MOUSE_SENSITIVITY;
if (mousePosition.x < 0) mousePosition.x = 0;
if (mousePosition.y < 0) mousePosition.y = 0;
if (mousePosition.x > screenWidth) mousePosition.x = screenWidth;
if (mousePosition.y > screenHeight) mousePosition.y = screenHeight;
}
//else read(mouseStream, &mouse, 1); // Try to sync up again
}
return NULL;
}
// Touch initialization (including touch thread)
static void InitTouch(void)
{
if ((touchStream = open(DEFAULT_TOUCH_DEV, O_RDONLY|O_NONBLOCK)) < 0)
{
TraceLog(LOG_WARNING, "Touch device could not be opened, no touchscreen available");
}
else
{
touchReady = true;
int error = pthread_create(&touchThreadId, NULL, &TouchThread, NULL);
if (error != 0) TraceLog(LOG_WARNING, "Error creating touch input event thread");
else TraceLog(LOG_INFO, "Touch device initialized successfully");
}
}
// Touch reading thread.
// This reads from a Virtual Input Event /dev/input/event4 which is
// created by the ts_uinput daemon. This takes, filters and scales
// raw input from the Touchscreen (which appears in /dev/input/event3)
// based on the Calibration data referenced by tslib.
static void *TouchThread(void *arg)
{
struct input_event ev;
GestureEvent gestureEvent;
while (!windowShouldClose)
{
if (read(touchStream, &ev, sizeof(ev)) == (int)sizeof(ev))
{
// if pressure > 0 then simulate left mouse button click
if (ev.type == EV_ABS && ev.code == 24 && ev.value == 0 && currentMouseState[0] == 1)
{
currentMouseState[0] = 0;
gestureEvent.touchAction = TOUCH_UP;
gestureEvent.pointCount = 1;
gestureEvent.pointerId[0] = 0;
gestureEvent.pointerId[1] = 1;
gestureEvent.position[0] = (Vector2){ mousePosition.x, mousePosition.y };
gestureEvent.position[1] = (Vector2){ mousePosition.x, mousePosition.y };
gestureEvent.position[0].x /= (float)GetScreenWidth();
gestureEvent.position[0].y /= (float)GetScreenHeight();
gestureEvent.position[1].x /= (float)GetScreenWidth();
gestureEvent.position[1].y /= (float)GetScreenHeight();
ProcessGestureEvent(gestureEvent);
}
if (ev.type == EV_ABS && ev.code == 24 && ev.value > 0 && currentMouseState[0] == 0)
{
currentMouseState[0] = 1;
gestureEvent.touchAction = TOUCH_DOWN;
gestureEvent.pointCount = 1;
gestureEvent.pointerId[0] = 0;
gestureEvent.pointerId[1] = 1;
gestureEvent.position[0] = (Vector2){ mousePosition.x, mousePosition.y };
gestureEvent.position[1] = (Vector2){ mousePosition.x, mousePosition.y };
gestureEvent.position[0].x /= (float)GetScreenWidth();
gestureEvent.position[0].y /= (float)GetScreenHeight();
gestureEvent.position[1].x /= (float)GetScreenWidth();
gestureEvent.position[1].y /= (float)GetScreenHeight();
ProcessGestureEvent(gestureEvent);
}
// x & y values supplied by event4 have been scaled & de-jittered using tslib calibration data
if (ev.type == EV_ABS && ev.code == 0)
{
mousePosition.x = ev.value;
if (mousePosition.x < 0) mousePosition.x = 0;
if (mousePosition.x > screenWidth) mousePosition.x = screenWidth;
gestureEvent.touchAction = TOUCH_MOVE;
gestureEvent.pointCount = 1;
gestureEvent.pointerId[0] = 0;
gestureEvent.pointerId[1] = 1;
gestureEvent.position[0] = (Vector2){ mousePosition.x, mousePosition.y };
gestureEvent.position[1] = (Vector2){ mousePosition.x, mousePosition.y };
gestureEvent.position[0].x /= (float)GetScreenWidth();
gestureEvent.position[0].y /= (float)GetScreenHeight();
gestureEvent.position[1].x /= (float)GetScreenWidth();
gestureEvent.position[1].y /= (float)GetScreenHeight();
ProcessGestureEvent(gestureEvent);
}
if (ev.type == EV_ABS && ev.code == 1)
{
mousePosition.y = ev.value;
if (mousePosition.y < 0) mousePosition.y = 0;
if (mousePosition.y > screenHeight) mousePosition.y = screenHeight;
gestureEvent.touchAction = TOUCH_MOVE;
gestureEvent.pointCount = 1;
gestureEvent.pointerId[0] = 0;
gestureEvent.pointerId[1] = 1;
gestureEvent.position[0] = (Vector2){ mousePosition.x, mousePosition.y };
gestureEvent.position[1] = (Vector2){ mousePosition.x, mousePosition.y };
gestureEvent.position[0].x /= (float)GetScreenWidth();
gestureEvent.position[0].y /= (float)GetScreenHeight();
gestureEvent.position[1].x /= (float)GetScreenWidth();
gestureEvent.position[1].y /= (float)GetScreenHeight();
ProcessGestureEvent(gestureEvent);
}
}
}
return NULL;
}
// Init gamepad system
static void InitGamepad(void)
{
char gamepadDev[128] = "";
for (int i = 0; i < MAX_GAMEPADS; i++)
{
sprintf(gamepadDev, "%s%i", DEFAULT_GAMEPAD_DEV, i);
if ((gamepadStream[i] = open(gamepadDev, O_RDONLY|O_NONBLOCK)) < 0)
{
// NOTE: Only show message for first gamepad
if (i == 0) TraceLog(LOG_WARNING, "Gamepad device could not be opened, no gamepad available");
}
else
{
gamepadReady[i] = true;
// NOTE: Only create one thread
if (i == 0)
{
int error = pthread_create(&gamepadThreadId, NULL, &GamepadThread, NULL);
if (error != 0) TraceLog(LOG_WARNING, "Error creating gamepad input event thread");
else TraceLog(LOG_INFO, "Gamepad device initialized successfully");
}
}
}
}
// Process Gamepad (/dev/input/js0)
static void *GamepadThread(void *arg)
{
#define JS_EVENT_BUTTON 0x01 // Button pressed/released
#define JS_EVENT_AXIS 0x02 // Joystick axis moved
#define JS_EVENT_INIT 0x80 // Initial state of device
struct js_event {
unsigned int time; // event timestamp in milliseconds
short value; // event value
unsigned char type; // event type
unsigned char number; // event axis/button number
};
// Read gamepad event
struct js_event gamepadEvent;
while (!windowShouldClose)
{
for (int i = 0; i < MAX_GAMEPADS; i++)
{
if (read(gamepadStream[i], &gamepadEvent, sizeof(struct js_event)) == (int)sizeof(struct js_event))
{
gamepadEvent.type &= ~JS_EVENT_INIT; // Ignore synthetic events
// Process gamepad events by type
if (gamepadEvent.type == JS_EVENT_BUTTON)
{
TraceLog(LOG_DEBUG, "Gamepad button: %i, value: %i", gamepadEvent.number, gamepadEvent.value);
if (gamepadEvent.number < MAX_GAMEPAD_BUTTONS)
{
// 1 - button pressed, 0 - button released
currentGamepadState[i][gamepadEvent.number] = (int)gamepadEvent.value;
if ((int)gamepadEvent.value == 1) lastGamepadButtonPressed = gamepadEvent.number;
else lastGamepadButtonPressed = -1;
}
}
else if (gamepadEvent.type == JS_EVENT_AXIS)
{
TraceLog(LOG_DEBUG, "Gamepad axis: %i, value: %i", gamepadEvent.number, gamepadEvent.value);
if (gamepadEvent.number < MAX_GAMEPAD_AXIS)
{
// NOTE: Scaling of gamepadEvent.value to get values between -1..1
gamepadAxisState[i][gamepadEvent.number] = (float)gamepadEvent.value/32768;
}
}
}
}
}
return NULL;
}
#endif // PLATFORM_RPI
// Plays raylib logo appearing animation
static void LogoAnimation(void)
{
#if !defined(PLATFORM_WEB)
int logoPositionX = screenWidth/2 - 128;
int logoPositionY = screenHeight/2 - 128;
int framesCounter = 0;
int lettersCount = 0;
int topSideRecWidth = 16;
int leftSideRecHeight = 16;
int bottomSideRecWidth = 16;
int rightSideRecHeight = 16;
int state = 0; // Tracking animation states (State Machine)
float alpha = 1.0f; // Useful for fading
while (!WindowShouldClose() && (state != 4)) // Detect window close button or ESC key
{
// Update
//----------------------------------------------------------------------------------
if (state == 0) // State 0: Small box blinking
{
framesCounter++;
if (framesCounter == 84)
{
state = 1;
framesCounter = 0; // Reset counter... will be used later...
}
}
else if (state == 1) // State 1: Top and left bars growing
{
topSideRecWidth += 4;
leftSideRecHeight += 4;
if (topSideRecWidth == 256) state = 2;
}
else if (state == 2) // State 2: Bottom and right bars growing
{
bottomSideRecWidth += 4;
rightSideRecHeight += 4;
if (bottomSideRecWidth == 256) state = 3;
}
else if (state == 3) // State 3: Letters appearing (one by one)
{
framesCounter++;
if (framesCounter/12) // Every 12 frames, one more letter!
{
lettersCount++;
framesCounter = 0;
}
if (lettersCount >= 10) // When all letters have appeared, just fade out everything
{
alpha -= 0.02f;
if (alpha <= 0.0f)
{
alpha = 0.0f;
state = 4;
}
}
}
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(RAYWHITE);
if (state == 0)
{
if ((framesCounter/12)%2) DrawRectangle(logoPositionX, logoPositionY, 16, 16, BLACK);
}
else if (state == 1)
{
DrawRectangle(logoPositionX, logoPositionY, topSideRecWidth, 16, BLACK);
DrawRectangle(logoPositionX, logoPositionY, 16, leftSideRecHeight, BLACK);
}
else if (state == 2)
{
DrawRectangle(logoPositionX, logoPositionY, topSideRecWidth, 16, BLACK);
DrawRectangle(logoPositionX, logoPositionY, 16, leftSideRecHeight, BLACK);
DrawRectangle(logoPositionX + 240, logoPositionY, 16, rightSideRecHeight, BLACK);
DrawRectangle(logoPositionX, logoPositionY + 240, bottomSideRecWidth, 16, BLACK);
}
else if (state == 3)
{
DrawRectangle(logoPositionX, logoPositionY, topSideRecWidth, 16, Fade(BLACK, alpha));
DrawRectangle(logoPositionX, logoPositionY + 16, 16, leftSideRecHeight - 32, Fade(BLACK, alpha));
DrawRectangle(logoPositionX + 240, logoPositionY + 16, 16, rightSideRecHeight - 32, Fade(BLACK, alpha));
DrawRectangle(logoPositionX, logoPositionY + 240, bottomSideRecWidth, 16, Fade(BLACK, alpha));
DrawRectangle(screenWidth/2 - 112, screenHeight/2 - 112, 224, 224, Fade(RAYWHITE, alpha));
DrawText(SubText("raylib", 0, lettersCount), screenWidth/2 - 44, screenHeight/2 + 48, 50, Fade(BLACK, alpha));
}
EndDrawing();
//----------------------------------------------------------------------------------
}
#endif
showLogo = false; // Prevent for repeating when reloading window (Android)
}
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