feat: platform iOS implementation
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553
src/platforms/rcore_ios.c
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553
src/platforms/rcore_ios.c
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/**********************************************************************************************
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*
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* rcore_ios - Functions to manage window, graphics device and inputs
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*
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* PLATFORM: IOS
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* - iOS (arm64)
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* - iOS Simulator
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*
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* LIMITATIONS:
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* - No keyboard input support
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* - No gamepad input support
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*
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* DEPENDENCIES:
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* - UIKit/QuartzCore/OpenGLES (provided by iOS SDK)
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* - raylib_ios_main.m provides the native window and GL bridge
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*
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* LICENSE: zlib/libpng
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*
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* Copyright (c) 2013-2026 Ramon Santamaria (@raysan5) and contributors
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*
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**********************************************************************************************/
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#if defined(__APPLE__)
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#include <unistd.h>
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#endif
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// UIKit/OpenGL bridge functions implemented in rcore_ios_main.m
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RLAPI bool ios_initialize_window(int requestedWidth, int requestedHeight, int *screenWidth, int *screenHeight, int *renderWidth, int *renderHeight, float *scaleX, float *scaleY);
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RLAPI void ios_make_current_context(void);
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RLAPI void ios_shutdown_window(void);
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RLAPI void ios_present_frame(void);
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RLAPI void *ios_get_window_handle(void);
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RLAPI void ios_get_window_metrics(int *screenWidth, int *screenHeight, int *renderWidth, int *renderHeight, float *scaleX, float *scaleY);
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RLAPI void *ios_get_proc_address(const char *name);
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RLAPI void ios_open_url(const char *url);
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//----------------------------------------------------------------------------------
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// Types and Structures Definition
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//----------------------------------------------------------------------------------
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typedef struct {
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bool initialized;
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} PlatformData;
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typedef struct {
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int32_t pointCount; // Number of active touch points
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int32_t pointId[MAX_TOUCH_POINTS]; // Touch point ids
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Vector2 position[MAX_TOUCH_POINTS]; // Touch point positions
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int32_t hoverPoints[MAX_TOUCH_POINTS]; // Hover point slots
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} TouchRaw;
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//----------------------------------------------------------------------------------
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// Global Variables Definition
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//----------------------------------------------------------------------------------
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extern CoreData CORE; // Global CORE state context
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static PlatformData platform = { 0 }; // Platform specific data
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static TouchRaw touchRaw = { 0 }; // Raw touch state
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//----------------------------------------------------------------------------------
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// Module Internal Functions Declaration
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//----------------------------------------------------------------------------------
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int InitPlatform(void); // Initialize platform (graphics, inputs and more)
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bool InitGraphicsDevice(void); // Initialize graphics device
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static int FindTouchSlot(intptr_t touchId, bool allowAllocate);
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static void UpdateMouseFromTouches(void);
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//----------------------------------------------------------------------------------
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// Module Functions Definition: Window and Graphics Device
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//----------------------------------------------------------------------------------
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// Check if application should close
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bool WindowShouldClose(void)
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{
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if (CORE.Window.ready) return CORE.Window.shouldClose;
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else return true;
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}
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// Toggle fullscreen mode
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void ToggleFullscreen(void)
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{
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TRACELOG(LOG_WARNING, "ToggleFullscreen() not available on target platform");
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}
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// Toggle borderless windowed mode
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void ToggleBorderlessWindowed(void)
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{
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TRACELOG(LOG_WARNING, "ToggleBorderlessWindowed() not available on target platform");
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}
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// Set window state: maximized, if resizable
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void MaximizeWindow(void)
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{
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TRACELOG(LOG_WARNING, "MaximizeWindow() not available on target platform");
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}
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// Set window state: minimized
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void MinimizeWindow(void)
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{
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TRACELOG(LOG_WARNING, "MinimizeWindow() not available on target platform");
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}
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// Restore window from being minimized/maximized
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void RestoreWindow(void)
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{
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TRACELOG(LOG_WARNING, "RestoreWindow() not available on target platform");
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}
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// Set window configuration state using flags
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void SetWindowState(unsigned int flags)
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{
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TRACELOG(LOG_WARNING, "SetWindowState() not available on target platform");
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}
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// Clear window configuration state flags
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void ClearWindowState(unsigned int flags)
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{
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TRACELOG(LOG_WARNING, "ClearWindowState() not available on target platform");
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}
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// Set icon for window
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void SetWindowIcon(Image image)
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{
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TRACELOG(LOG_WARNING, "SetWindowIcon() not available on target platform");
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}
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// Set icons for window
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void SetWindowIcons(Image *images, int count)
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{
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TRACELOG(LOG_WARNING, "SetWindowIcons() not available on target platform");
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}
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// Set title for window
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void SetWindowTitle(const char *title)
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{
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CORE.Window.title = title;
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}
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// Set window position on screen (windowed mode)
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void SetWindowPosition(int x, int y)
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{
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TRACELOG(LOG_WARNING, "SetWindowPosition() not available on target platform");
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}
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// Set monitor for the current window
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void SetWindowMonitor(int monitor)
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{
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TRACELOG(LOG_WARNING, "SetWindowMonitor() not available on target platform");
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}
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// Set window minimum dimensions (FLAG_WINDOW_RESIZABLE)
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void SetWindowMinSize(int width, int height)
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{
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CORE.Window.screenMin.width = width;
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CORE.Window.screenMin.height = height;
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}
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// Set window maximum dimensions (FLAG_WINDOW_RESIZABLE)
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void SetWindowMaxSize(int width, int height)
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{
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CORE.Window.screenMax.width = width;
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CORE.Window.screenMax.height = height;
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}
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// Set window dimensions
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void SetWindowSize(int width, int height)
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{
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TRACELOG(LOG_WARNING, "SetWindowSize() not available on target platform");
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}
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// Set window opacity [0.0f..1.0f]
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void SetWindowOpacity(float opacity)
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{
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TRACELOG(LOG_WARNING, "SetWindowOpacity() not available on target platform");
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}
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// Set window focused
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void SetWindowFocused(void)
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{
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TRACELOG(LOG_WARNING, "SetWindowFocused() not available on target platform");
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}
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// Get native window handle
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void *GetWindowHandle(void)
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{
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return ios_get_window_handle();
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}
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// Get number of monitors
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int GetMonitorCount(void) { return 1; }
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// Get current monitor where window is placed
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int GetCurrentMonitor(void) { return 0; }
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// Get selected monitor position
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Vector2 GetMonitorPosition(int monitor) { return (Vector2){ 0, 0 }; }
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// Get selected monitor width (currently used by monitor)
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int GetMonitorWidth(int monitor) { return CORE.Window.screen.width; }
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// Get selected monitor height (currently used by monitor)
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int GetMonitorHeight(int monitor) { return CORE.Window.screen.height; }
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// Get selected monitor physical width in millimetres
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int GetMonitorPhysicalWidth(int monitor) { return 0; }
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// Get selected monitor physical height in millimetres
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int GetMonitorPhysicalHeight(int monitor) { return 0; }
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// Get selected monitor refresh rate
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int GetMonitorRefreshRate(int monitor) { return 0; }
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// Get the human-readable, UTF-8 encoded name of the selected monitor
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const char *GetMonitorName(int monitor) { return ""; }
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// Get window position XY on monitor
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Vector2 GetWindowPosition(void) { return (Vector2){ 0, 0 }; }
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// Get window scale DPI factor for current monitor
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Vector2 GetWindowScaleDPI(void)
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{
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int screenWidth = 0, screenHeight = 0;
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int renderWidth = 0, renderHeight = 0;
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float scaleX = 1.0f, scaleY = 1.0f;
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ios_get_window_metrics(&screenWidth, &screenHeight, &renderWidth, &renderHeight, &scaleX, &scaleY);
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(void)screenWidth; (void)screenHeight;
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(void)renderWidth; (void)renderHeight;
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return (Vector2){ scaleX, scaleY };
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}
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// Set clipboard text content
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void SetClipboardText(const char *text)
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{
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TRACELOG(LOG_WARNING, "SetClipboardText() not implemented on target platform");
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}
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// Get clipboard text content
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const char *GetClipboardText(void)
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{
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TRACELOG(LOG_WARNING, "GetClipboardText() not implemented on target platform");
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return NULL;
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}
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// Get clipboard image
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Image GetClipboardImage(void)
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{
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Image image = { 0 };
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TRACELOG(LOG_WARNING, "GetClipboardImage() not implemented on target platform");
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return image;
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}
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// Show mouse cursor
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void ShowCursor(void) { CORE.Input.Mouse.cursorHidden = false; }
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// Hide mouse cursor
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void HideCursor(void) { CORE.Input.Mouse.cursorHidden = true; }
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// Enable cursor (unlock cursor)
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void EnableCursor(void)
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{
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SetMousePosition(CORE.Window.screen.width/2, CORE.Window.screen.height/2);
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CORE.Input.Mouse.cursorHidden = false;
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}
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// Disable cursor (lock cursor)
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void DisableCursor(void)
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{
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SetMousePosition(CORE.Window.screen.width/2, CORE.Window.screen.height/2);
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CORE.Input.Mouse.cursorHidden = true;
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}
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// Swap back buffer with front buffer (screen drawing)
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void SwapScreenBuffer(void)
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{
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ios_present_frame();
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}
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//----------------------------------------------------------------------------------
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// Module Functions Definition: Misc
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//----------------------------------------------------------------------------------
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// Get elapsed time measure in seconds since InitTimer()
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double GetTime(void)
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{
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struct timespec ts = { 0 };
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clock_gettime(CLOCK_MONOTONIC, &ts);
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unsigned long long int nanoSeconds = (unsigned long long int)ts.tv_sec*1000000000LLU + (unsigned long long int)ts.tv_nsec;
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return (double)(nanoSeconds - CORE.Time.base)*1e-9; // Elapsed time since InitTimer()
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}
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// Open URL with default system browser (if available)
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// NOTE: This function is only safe to use if you control the URL given.
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// A user could craft a malicious string performing another action.
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// Only call this function yourself not with user input or make sure to check
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// the string yourself. Ref: https://github.com/raysan5/raylib/issues/686
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void OpenURL(const char *url)
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{
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// Security check to (partially) avoid malicious code
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if (strchr(url, '\'') != NULL) TRACELOG(LOG_WARNING, "SYSTEM: Provided URL could be potentially malicious, avoid [\'] character");
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else ios_open_url(url);
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}
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//----------------------------------------------------------------------------------
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// Module Functions Definition: Inputs
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//----------------------------------------------------------------------------------
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// Set internal gamepad mappings
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int SetGamepadMappings(const char *mappings)
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{
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TRACELOG(LOG_WARNING, "SetGamepadMappings() not implemented on target platform");
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return 0;
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}
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// Set gamepad vibration
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void SetGamepadVibration(int gamepad, float leftMotor, float rightMotor, float duration)
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{
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TRACELOG(LOG_WARNING, "SetGamepadVibration() not implemented on target platform");
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}
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// Set mouse position XY
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void SetMousePosition(int x, int y)
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{
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CORE.Input.Mouse.currentPosition = (Vector2){ (float)x, (float)y };
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CORE.Input.Mouse.previousPosition = CORE.Input.Mouse.currentPosition;
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}
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// Set mouse cursor
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void SetMouseCursor(int cursor)
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{
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TRACELOG(LOG_WARNING, "SetMouseCursor() not implemented on target platform");
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}
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// Get physical key name
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const char *GetKeyName(int key)
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{
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TRACELOG(LOG_WARNING, "GetKeyName() not implemented on target platform");
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return "";
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}
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// Register all input events
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void PollInputEvents(void)
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{
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#if defined(SUPPORT_GESTURES_SYSTEM)
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// NOTE: Gestures update must be called every frame to reset gestures correctly
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// because ProcessGestureEvent() is called on an event, not every frame
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UpdateGestures();
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#endif
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// Reset keys/chars pressed registered
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CORE.Input.Keyboard.keyPressedQueueCount = 0;
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CORE.Input.Keyboard.charPressedQueueCount = 0;
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// Reset key repeats
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for (int i = 0; i < MAX_KEYBOARD_KEYS; i++) CORE.Input.Keyboard.keyRepeatInFrame[i] = 0;
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// Reset last gamepad button/axis registered state
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CORE.Input.Gamepad.lastButtonPressed = 0; // GAMEPAD_BUTTON_UNKNOWN
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// Register previous touch states
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for (int i = 0; i < MAX_TOUCH_POINTS; i++)
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CORE.Input.Touch.previousTouchState[i] = CORE.Input.Touch.currentTouchState[i];
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// Register previous keys states
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for (int i = 0; i < MAX_KEYBOARD_KEYS; i++)
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{
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CORE.Input.Keyboard.previousKeyState[i] = CORE.Input.Keyboard.currentKeyState[i];
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CORE.Input.Keyboard.keyRepeatInFrame[i] = 0;
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}
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UpdateMouseFromTouches();
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}
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//----------------------------------------------------------------------------------
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// Module Internal Functions Definition
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//----------------------------------------------------------------------------------
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// Initialize platform: graphics, inputs and more
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int InitPlatform(void)
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{
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FLAG_SET(CORE.Window.flags, FLAG_FULLSCREEN_MODE);
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if (FLAG_IS_SET(CORE.Window.flags, FLAG_MSAA_4X_HINT)) TRACELOG(LOG_INFO, "DISPLAY: Trying to enable MSAA x4");
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int screenWidth = 0, screenHeight = 0;
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int renderWidth = 0, renderHeight = 0;
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float scaleX = 1.0f, scaleY = 1.0f;
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if (!ios_initialize_window(CORE.Window.screen.width, CORE.Window.screen.height,
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&screenWidth, &screenHeight, &renderWidth, &renderHeight, &scaleX, &scaleY))
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{
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TRACELOG(LOG_FATAL, "PLATFORM: Failed to initialize iOS window and graphics context");
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return -1;
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}
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ios_make_current_context();
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CORE.Window.screen.width = screenWidth;
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CORE.Window.screen.height = screenHeight;
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CORE.Window.display.width = (int)((float)screenWidth*scaleX);
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CORE.Window.display.height = (int)((float)screenHeight*scaleY);
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CORE.Window.render.width = renderWidth;
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CORE.Window.render.height = renderHeight;
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CORE.Window.currentFbo.width = CORE.Window.render.width;
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CORE.Window.currentFbo.height = CORE.Window.render.height;
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CORE.Window.screenScale = MatrixScale(scaleX, scaleY, 1.0f);
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rlLoadExtensions(ios_get_proc_address);
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for (int i = 0; i < MAX_TOUCH_POINTS; i++) touchRaw.hoverPoints[i] = -1;
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platform.initialized = true;
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CORE.Window.ready = true;
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InitTimer();
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CORE.Storage.basePath = GetWorkingDirectory();
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TRACELOG(LOG_INFO, "PLATFORM: IOS: Initialized successfully");
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TRACELOG(LOG_INFO, " > Screen size: %i x %i", CORE.Window.screen.width, CORE.Window.screen.height);
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TRACELOG(LOG_INFO, " > Render size: %i x %i", CORE.Window.render.width, CORE.Window.render.height);
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return 0;
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}
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// Close platform
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void ClosePlatform(void)
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{
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platform = (PlatformData){ 0 };
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touchRaw = (TouchRaw){ 0 };
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ios_shutdown_window();
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}
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// Find or allocate a touch slot for the given touchId
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static int FindTouchSlot(intptr_t touchId, bool allowAllocate)
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{
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for (int i = 0; i < touchRaw.pointCount; i++)
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{
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if (touchRaw.pointId[i] == (int32_t)touchId) return i;
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}
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if (!allowAllocate) return -1;
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if (touchRaw.pointCount < MAX_TOUCH_POINTS) return touchRaw.pointCount;
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return -1;
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}
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// Sync mouse position/state from primary touch point
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static void UpdateMouseFromTouches(void)
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{
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if (touchRaw.pointCount > 0)
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{
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CORE.Input.Mouse.previousPosition = CORE.Input.Mouse.currentPosition;
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CORE.Input.Mouse.currentPosition = touchRaw.position[0];
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CORE.Input.Mouse.currentWheelMove = (Vector2){ 0.0f, 0.0f };
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}
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}
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//----------------------------------------------------------------------------------
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// iOS Bridge Callbacks (called from rcore_ios_main.m)
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//----------------------------------------------------------------------------------
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void ios_handle_touch_began(intptr_t touchId, float x, float y)
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{
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int index = FindTouchSlot(touchId, true);
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if (index < 0) return;
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touchRaw.pointId[index] = (int32_t)touchId;
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touchRaw.position[index] = (Vector2){ x, y };
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CORE.Input.Touch.pointId[index] = (int)touchId;
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CORE.Input.Touch.position[index] = (Vector2){ x, y };
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CORE.Input.Touch.currentTouchState[index] = 1;
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CORE.Input.Touch.previousTouchState[index] = 0;
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CORE.Input.Mouse.currentButtonState[MOUSE_BUTTON_LEFT] = 1;
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CORE.Input.Mouse.previousButtonState[MOUSE_BUTTON_LEFT] = 0;
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if (touchRaw.pointCount < MAX_TOUCH_POINTS) touchRaw.pointCount++;
|
||||
CORE.Input.Touch.pointCount = touchRaw.pointCount;
|
||||
|
||||
UpdateMouseFromTouches();
|
||||
}
|
||||
|
||||
void ios_handle_touch_moved(intptr_t touchId, float x, float y)
|
||||
{
|
||||
int index = FindTouchSlot(touchId, false);
|
||||
if (index < 0) return;
|
||||
|
||||
touchRaw.position[index] = (Vector2){ x, y };
|
||||
CORE.Input.Touch.pointId[index] = (int)touchId;
|
||||
CORE.Input.Touch.position[index] = (Vector2){ x, y };
|
||||
CORE.Input.Touch.currentTouchState[index] = 1;
|
||||
CORE.Input.Mouse.currentButtonState[MOUSE_BUTTON_LEFT] = 1;
|
||||
CORE.Input.Touch.pointCount = touchRaw.pointCount;
|
||||
|
||||
UpdateMouseFromTouches();
|
||||
}
|
||||
|
||||
void ios_handle_touch_ended(intptr_t touchId, float x, float y)
|
||||
{
|
||||
int index = FindTouchSlot(touchId, false);
|
||||
if (index < 0) return;
|
||||
|
||||
touchRaw.position[index] = (Vector2){ x, y };
|
||||
CORE.Input.Touch.position[index] = (Vector2){ x, y };
|
||||
CORE.Input.Touch.currentTouchState[index] = 0;
|
||||
CORE.Input.Touch.previousTouchState[index] = 1;
|
||||
CORE.Input.Touch.pointId[index] = 0;
|
||||
|
||||
// Compact the touch arrays — shift remaining points down
|
||||
for (int i = index; i < touchRaw.pointCount - 1; i++)
|
||||
{
|
||||
touchRaw.pointId[i] = touchRaw.pointId[i + 1];
|
||||
touchRaw.position[i] = touchRaw.position[i + 1];
|
||||
|
||||
CORE.Input.Touch.pointId[i] = CORE.Input.Touch.pointId[i + 1];
|
||||
CORE.Input.Touch.position[i] = CORE.Input.Touch.position[i + 1];
|
||||
CORE.Input.Touch.currentTouchState[i] = CORE.Input.Touch.currentTouchState[i + 1];
|
||||
CORE.Input.Touch.previousTouchState[i] = CORE.Input.Touch.previousTouchState[i + 1];
|
||||
}
|
||||
|
||||
if (touchRaw.pointCount > 0) touchRaw.pointCount--;
|
||||
CORE.Input.Touch.pointCount = touchRaw.pointCount;
|
||||
|
||||
CORE.Input.Mouse.currentButtonState[MOUSE_BUTTON_LEFT] = (touchRaw.pointCount > 0)? 1 : 0;
|
||||
CORE.Input.Mouse.previousButtonState[MOUSE_BUTTON_LEFT] = 1;
|
||||
|
||||
UpdateMouseFromTouches();
|
||||
}
|
||||
|
||||
void ios_handle_touch_cancelled(intptr_t touchId, float x, float y)
|
||||
{
|
||||
ios_handle_touch_ended(touchId, x, y);
|
||||
}
|
||||
|
||||
void ios_request_close(void)
|
||||
{
|
||||
CORE.Window.shouldClose = true;
|
||||
}
|
||||
|
||||
void ios_set_window_focused(bool focused)
|
||||
{
|
||||
if (focused) FLAG_CLEAR(CORE.Window.flags, FLAG_WINDOW_UNFOCUSED);
|
||||
else FLAG_SET(CORE.Window.flags, FLAG_WINDOW_UNFOCUSED);
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user