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Fix ActiveFunc calling convention

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This commit is contained in:
Brandon Dyck 2022-01-09 11:51:45 -07:00
parent 293b8729c0
commit 452be0a0b8
2 changed files with 13 additions and 12 deletions
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23
lib/minifb/src/minifb.zig
View File

@ -1,4 +1,5 @@
const std = @import("std");
const assert = std.debug.assert;
const c = @cImport({
@cInclude("MiniFB.h");
@cInclude("MiniFB_enums.h");
@ -48,7 +49,9 @@ pub fn Window(comptime TUserData: type) type {
const cTitle = @as([*c]const u8, title);
const cwin: ?*c.mfb_window = c.mfb_open_ex(cTitle, width, height, intFlags);
if (cwin) |value| {
return Window(TUserData){ .cwin = value };
const win = Window(TUserData){ .cwin = value };
assert(@bitCast(usize, win) == @ptrToInt(win.cwin));
return win;
} else {
return error.ItBroke;
}
@ -75,12 +78,10 @@ pub fn Window(comptime TUserData: type) type {
pub fn getUserData(self: Window(TUserData)) ?*TUserData {
var cData = c.mfb_get_user_data(self.cwin);
std.log.info("@alignOf cwin={d}, addr={x}", .{ @alignOf(@TypeOf(self.cwin)), @ptrToInt(self.cwin) });
std.log.info("@alignOf cdata={d}, addr={x}", .{ @alignOf(@TypeOf(cData)), @ptrToInt(cData) });
return @ptrCast(?*TUserData, @alignCast(@alignOf(?*TUserData), cData));
}
pub const ActiveFunc = fn (win: Window(TUserData), isActive: bool) void;
pub const ActiveFunc = fn (win: Window(TUserData), isActive: bool) callconv(.C) void;
pub fn setActiveCallback(self: Window(TUserData), callback: ActiveFunc) void {
c.mfb_set_active_callback(self.cwin, @ptrCast(c.mfb_active_func, callback));
}
@ -93,13 +94,13 @@ test "user data is null if never set" {
try testing.expectEqual(@as(?*u64, null), data);
}
// test "user data is not null if previously set" {
// const win = try Window(u64).open("abc", 100, 100, .{});
// var data: u64 = 42;
// win.setUserData(&data);
// const expected: u64 = 42;
// try testing.expectEqual(expected, win.getUserData().?.*);
// }
test "user data is not null if previously set" {
const win = try Window(u64).open("abc", 100, 100, .{});
var data: u64 = 42;
win.setUserData(&data);
const expected: u64 = 42;
try testing.expectEqual(expected, win.getUserData().?.*);
}
pub fn getTargetFPS() u32 {
return c.mfb_get_target_fps();

2
src/main.zig
View File

@ -98,7 +98,7 @@ const Buffer = struct {
}
};
fn handleActive(win: mfb.Window(State), isActive: bool) void {
fn handleActive(win: mfb.Window(State), isActive: bool) callconv(.C) void {
// win.getUserData().?.*.active = isActive;
var data = win.getUserData();
std.log.info("got data", .{});