tiny.sys.apple.coregraphics

1const std = @import("std");23pub const CGFloat = f64;4pub const ColorSpace = *opaque {};5pub const DataProvider = *opaque {};6pub const Event = *opaque {};7pub const EventFlags = u64;8pub const EventType = u32;9pub const Image = *opaque {};10pub const MouseButton = u32;11pub const Point = extern struct {12    x: CGFloat,13    y: CGFloat,14};1516const image_alpha_last: u32 = 3;17const bitmap_byte_order_32_big: u32 = 4 << 12;18pub const event_left_mouse_down: EventType = 1;19pub const event_left_mouse_up: EventType = 2;20pub const event_right_mouse_down: EventType = 3;21pub const event_right_mouse_up: EventType = 4;22pub const event_other_mouse_down: EventType = 25;23pub const event_other_mouse_up: EventType = 26;24pub const event_other_mouse_dragged: EventType = 27;25const rendering_intent_default: c_int = 0;26const keyboard_event_autorepeat: u32 = 8;2728extern fn CFRelease(value: *const anyopaque) void;29extern fn CGColorSpaceCreateDeviceRGB() ?ColorSpace;30extern fn CGColorSpaceRelease(space: ColorSpace) void;31extern fn CGDataProviderCreateWithData(32    info: ?*anyopaque,33    data: *const anyopaque,34    size: usize,35    release_data: ?*const fn (?*anyopaque, *const anyopaque, usize) callconv(.c) void,36) ?DataProvider;37extern fn CGDataProviderRelease(provider: DataProvider) void;38extern fn CGImageCreate(39    width: usize,40    height: usize,41    bits_per_component: usize,42    bits_per_pixel: usize,43    bytes_per_row: usize,44    color_space: ColorSpace,45    bitmap_info: u32,46    provider: DataProvider,47    decode: ?[*]const CGFloat,48    should_interpolate: bool,49    intent: c_int,50) ?Image;51extern fn CGImageRelease(image: Image) void;52extern fn CGEventCreateKeyboardEvent(53    source: ?*const anyopaque,54    virtual_key: u16,55    key_down: bool,56) ?Event;57extern fn CGEventCreateMouseEvent(58    source: ?*const anyopaque,59    mouse_type: EventType,60    mouse_cursor_position: Point,61    mouse_button: MouseButton,62) ?Event;63extern fn CGEventSetFlags(event: ?Event, flags: EventFlags) void;64extern fn CGEventSetIntegerValueField(event: ?Event, field: u32, value: i64) void;6566pub fn createDeviceRgbColorSpace() ?ColorSpace {67    return CGColorSpaceCreateDeviceRGB();68}6970pub fn releaseColorSpace(space: ColorSpace) void {71    CGColorSpaceRelease(space);72}7374pub fn createDataProvider(data: []const u8) ?DataProvider {75    if (data.len == 0) return null;76    return CGDataProviderCreateWithData(null, data.ptr, data.len, null);77}7879pub fn releaseDataProvider(provider: DataProvider) void {80    CGDataProviderRelease(provider);81}8283pub fn createRgba8Image(84    width: u32,85    height: u32,86    bytes_per_row: usize,87    color_space: ColorSpace,88    provider: DataProvider,89) ?Image {90    return CGImageCreate(91        @as(usize, width),92        @as(usize, height),93        8,94        32,95        bytes_per_row,96        color_space,97        image_alpha_last | bitmap_byte_order_32_big,98        provider,99        null,100        false,101        rendering_intent_default,102    );103}104105pub fn releaseImage(image: Image) void {106    CGImageRelease(image);107}108109pub fn createKeyboardEvent(virtual_key: u16, key_down: bool) ?Event {110    return CGEventCreateKeyboardEvent(null, virtual_key, key_down);111}112113pub fn createMouseEvent(114    event_type: EventType,115    position: Point,116    button: MouseButton,117) ?Event {118    return CGEventCreateMouseEvent(null, event_type, position, button);119}120121pub fn setKeyboardEventFlags(event: Event, flags: EventFlags) void {122    CGEventSetFlags(event, flags);123}124125pub fn setKeyboardEventRepeated(event: Event, repeated: bool) void {126    CGEventSetIntegerValueField(event, keyboard_event_autorepeat, @intFromBool(repeated));127}128129pub fn releaseEvent(event: Event) void {130    CFRelease(event);131}132133test "CoreGraphics ABI uses 64-bit scalars and opaque pointer handles" {134    try std.testing.expectEqual(@as(usize, 8), @sizeOf(CGFloat));135    try std.testing.expectEqual(@sizeOf(usize), @sizeOf(ColorSpace));136    try std.testing.expectEqual(@sizeOf(usize), @sizeOf(DataProvider));137    try std.testing.expectEqual(@sizeOf(usize), @sizeOf(Event));138    try std.testing.expectEqual(@as(usize, 8), @sizeOf(EventFlags));139    try std.testing.expectEqual(@as(usize, 4), @sizeOf(EventType));140    try std.testing.expectEqual(@sizeOf(usize), @sizeOf(Image));141    try std.testing.expectEqual(@as(usize, 4), @sizeOf(MouseButton));142    try std.testing.expectEqual(@as(usize, 16), @sizeOf(Point));143}

1pub const coregraphics = @import("coregraphics.zig");