kitty/glfw/cocoa_platform.h

//========================================================================
// GLFW 3.3 macOS - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2009-2016 Camilla Löwy <elmindreda@glfw.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
//    claim that you wrote the original software. If you use this software
//    in a product, an acknowledgment in the product documentation would
//    be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
//    be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
//    distribution.
//
//========================================================================

#include <stdint.h>
#include <dlfcn.h>

#include <Carbon/Carbon.h>
#if defined(__OBJC__)
#import <Cocoa/Cocoa.h>
#import <CoreVideo/CoreVideo.h>
#else
typedef void* id;
typedef void* CVDisplayLinkRef;
#endif

typedef enum {
    EMPTY_EVENT_TYPE,
    RENDER_FRAME_REQUEST_EVENT_TYPE,
} EventTypes;


typedef VkFlags VkMacOSSurfaceCreateFlagsMVK;
typedef int (* GLFWcocoatextinputfilterfun)(int,int,unsigned int, unsigned long);
typedef int (* GLFWapplicationshouldhandlereopenfun)(int);
typedef int (* GLFWcocoatogglefullscreenfun)(GLFWwindow*);
typedef void (* GLFWcocoarenderframefun)(GLFWwindow*);

typedef struct VkMacOSSurfaceCreateInfoMVK
{
    VkStructureType                 sType;
    const void*                     pNext;
    VkMacOSSurfaceCreateFlagsMVK    flags;
    const void*                     pView;
} VkMacOSSurfaceCreateInfoMVK;

typedef VkResult (APIENTRY *PFN_vkCreateMacOSSurfaceMVK)(VkInstance,const VkMacOSSurfaceCreateInfoMVK*,const VkAllocationCallbacks*,VkSurfaceKHR*);

#include "posix_thread.h"
#include "cocoa_joystick.h"
#include "nsgl_context.h"
#include "egl_context.h"
#include "osmesa_context.h"

#define _glfw_dlopen(name) dlopen(name, RTLD_LAZY | RTLD_LOCAL)
#define _glfw_dlclose(handle) dlclose(handle)
#define _glfw_dlsym(handle, name) dlsym(handle, name)

#define _GLFW_EGL_NATIVE_WINDOW  ((EGLNativeWindowType) window->ns.view)
#define _GLFW_EGL_NATIVE_DISPLAY EGL_DEFAULT_DISPLAY

#define _GLFW_PLATFORM_WINDOW_STATE         _GLFWwindowNS  ns
#define _GLFW_PLATFORM_LIBRARY_WINDOW_STATE _GLFWlibraryNS ns
#define _GLFW_PLATFORM_LIBRARY_TIMER_STATE  _GLFWtimerNS   ns
#define _GLFW_PLATFORM_MONITOR_STATE        _GLFWmonitorNS ns
#define _GLFW_PLATFORM_CURSOR_STATE         _GLFWcursorNS  ns

// HIToolbox.framework pointer typedefs
#define kTISPropertyUnicodeKeyLayoutData _glfw.ns.tis.kPropertyUnicodeKeyLayoutData
typedef TISInputSourceRef (*PFN_TISCopyCurrentKeyboardLayoutInputSource)(void);
#define TISCopyCurrentKeyboardLayoutInputSource _glfw.ns.tis.CopyCurrentKeyboardLayoutInputSource
typedef void* (*PFN_TISGetInputSourceProperty)(TISInputSourceRef,CFStringRef);
#define TISGetInputSourceProperty _glfw.ns.tis.GetInputSourceProperty
typedef UInt8 (*PFN_LMGetKbdType)(void);
#define LMGetKbdType _glfw.ns.tis.GetKbdType


// Cocoa-specific per-window data
//
typedef struct _GLFWwindowNS
{
    id              object;
    id              delegate;
    id              view;
    id              layer;

    GLFWbool        maximized;

    // Cached window properties to filter out duplicate events
    int             width, height;
    int             fbWidth, fbHeight;
    float           xscale, yscale;

    // The total sum of the distances the cursor has been warped
    // since the last cursor motion event was processed
    // This is kept to counteract Cocoa doing the same internally
    double          cursorWarpDeltaX, cursorWarpDeltaY;

    // The text input filter callback
    GLFWcocoatextinputfilterfun textInputFilterCallback;
    // The toggle fullscreen intercept callback
    GLFWcocoatogglefullscreenfun toggleFullscreenCallback;
    // Dead key state
    UInt32 deadKeyState;
    // Whether a render frame has been requested for this window
    GLFWbool renderFrameRequested;
    GLFWcocoarenderframefun renderFrameCallback;
} _GLFWwindowNS;

typedef struct _GLFWDisplayLinkNS
{
    CVDisplayLinkRef displayLink;
    CGDirectDisplayID displayID;
    GLFWbool displayLinkStarted;
    GLFWbool renderFrameRequested;
} _GLFWDisplayLinkNS;

// Cocoa-specific global data
//
typedef struct _GLFWlibraryNS
{
    CGEventSourceRef    eventSource;
    id                  delegate;
    GLFWbool            cursorHidden;
    TISInputSourceRef   inputSource;
    IOHIDManagerRef     hidManager;
    id                  unicodeData;
    id                  helper;
    id                  keyUpMonitor;
    id                  keyDownMonitor;

    char                keyName[64];
    char                text[256];
    short int           keycodes[256];
    short int           scancodes[GLFW_KEY_LAST + 1];
    char*               clipboardString;
    CGPoint             cascadePoint;
    // Where to place the cursor when re-enabled
    double              restoreCursorPosX, restoreCursorPosY;
    // The window whose disabled cursor mode is active
    _GLFWwindow*        disabledCursorWindow;

    struct {
        CFBundleRef     bundle;
        PFN_TISCopyCurrentKeyboardLayoutInputSource CopyCurrentKeyboardLayoutInputSource;
        PFN_TISGetInputSourceProperty GetInputSourceProperty;
        PFN_LMGetKbdType GetKbdType;
        CFStringRef     kPropertyUnicodeKeyLayoutData;
    } tis;

    struct {
        _GLFWDisplayLinkNS entries[256];
        size_t count;
        id lock;
    } displayLinks;

} _GLFWlibraryNS;

// Cocoa-specific per-monitor data
//
typedef struct _GLFWmonitorNS
{
    CGDirectDisplayID   displayID;
    CGDisplayModeRef    previousMode;
    uint32_t            unitNumber;
    id                  screen;

} _GLFWmonitorNS;

// Cocoa-specific per-cursor data
//
typedef struct _GLFWcursorNS
{
    id              object;

} _GLFWcursorNS;

// Cocoa-specific global timer data
//
typedef struct _GLFWtimerNS
{
    uint64_t        frequency;

} _GLFWtimerNS;


void _glfwInitTimerNS(void);

void _glfwPollMonitorsNS(void);
void _glfwSetVideoModeNS(_GLFWmonitor* monitor, const GLFWvidmode* desired);
void _glfwRestoreVideoModeNS(_GLFWmonitor* monitor);
float _glfwTransformYNS(float y);
void _glfwClearDisplayLinks();
void _glfwCocoaPostEmptyEvent(short subtype, long data1, bool at_start);
void _glfwDispatchTickCallback();