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code for getting physical DPI

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we don't need it but I want to put it in Git history
This commit is contained in:
Mitchell Hashimoto
2022-08-25 15:53:29 -07:00
parent 9601920b4d
commit a9b34b43c5
1 changed files with 17 additions and 0 deletions
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17
src/Window.zig
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@ -193,6 +193,23 @@ pub fn create(alloc: Allocator, loop: libuv.Loop, config: *const Config) !*Windo
}
}
if (builtin.mode == .Debug) {
// Get our physical DPI - debug only because we don't have a use for
// this but the logging of it may be useful
const monitor = window.getMonitor() orelse monitor: {
log.warn("window had null monitor, getting primary monitor", .{});
break :monitor glfw.Monitor.getPrimary().?;
};
const physical_size = monitor.getPhysicalSize();
const video_mode = try monitor.getVideoMode();
const physical_x_dpi = @intToFloat(f32, video_mode.getWidth()) / (@intToFloat(f32, physical_size.width_mm) / 25.4);
const physical_y_dpi = @intToFloat(f32, video_mode.getHeight()) / (@intToFloat(f32, physical_size.height_mm) / 25.4);
log.debug("physical dpi x={} y={}", .{
physical_x_dpi,
physical_y_dpi,
});
}
// Determine our DPI configurations so we can properly configure
// font points to pixels and handle other high-DPI scaling factors.
const content_scale = try window.getContentScale();