From 2ce033f4159409db66866e28a3591256ea0dfadc Mon Sep 17 00:00:00 2001
From: viri <viridianmeow@gmail.com>
Date: Fri, 11 Jun 2021 03:19:35 -0600
Subject: [PATCH] std.os.windows: implement <timeapi.h> (#8801)

---
 lib/std/os/windows.zig       |  1 +
 lib/std/os/windows/winmm.zig | 73 ++++++++++++++++++++++++++++++++++++
 2 files changed, 74 insertions(+)
 create mode 100644 lib/std/os/windows/winmm.zig

diff --git a/lib/std/os/windows.zig b/lib/std/os/windows.zig
index b5da153e59..6cbc7d539c 100644
--- a/lib/std/os/windows.zig
+++ b/lib/std/os/windows.zig
@@ -25,6 +25,7 @@ pub const shell32 = @import("windows/shell32.zig");
 pub const user32 = @import("windows/user32.zig");
 pub const ws2_32 = @import("windows/ws2_32.zig");
 pub const gdi32 = @import("windows/gdi32.zig");
+pub const winmm = @import("windows/winmm.zig");
 
 pub usingnamespace @import("windows/bits.zig");
 
diff --git a/lib/std/os/windows/winmm.zig b/lib/std/os/windows/winmm.zig
new file mode 100644
index 0000000000..69e4cef605
--- /dev/null
+++ b/lib/std/os/windows/winmm.zig
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: MIT
+// Copyright (c) 2015-2021 Zig Contributors
+// This file is part of [zig](https://ziglang.org/), which is MIT licensed.
+// The MIT license requires this copyright notice to be included in all copies
+// and substantial portions of the software.
+usingnamespace @import("bits.zig");
+
+pub const MMRESULT = UINT;
+pub const MMSYSERR_BASE = 0;
+pub const TIMERR_BASE = 96;
+pub const MMSYSERR_ERROR = MMSYSERR_BASE + 1;
+pub const MMSYSERR_BADDEVICEID = MMSYSERR_BASE + 2;
+pub const MMSYSERR_NOTENABLED = MMSYSERR_BASE + 3;
+pub const MMSYSERR_ALLOCATED = MMSYSERR_BASE + 4;
+pub const MMSYSERR_INVALHANDLE = MMSYSERR_BASE + 5;
+pub const MMSYSERR_NODRIVER = MMSYSERR_BASE + 6;
+pub const MMSYSERR_NOMEM = MMSYSERR_BASE + 7;
+pub const MMSYSERR_NOTSUPPORTED = MMSYSERR_BASE + 8;
+pub const MMSYSERR_BADERRNUM = MMSYSERR_BASE + 9;
+pub const MMSYSERR_INVALFLAG = MMSYSERR_BASE + 10;
+pub const MMSYSERR_INVALPARAM = MMSYSERR_BASE + 11;
+pub const MMSYSERR_HANDLEBUSY = MMSYSERR_BASE + 12;
+pub const MMSYSERR_INVALIDALIAS = MMSYSERR_BASE + 13;
+pub const MMSYSERR_BADDB = MMSYSERR_BASE + 14;
+pub const MMSYSERR_KEYNOTFOUND = MMSYSERR_BASE + 15;
+pub const MMSYSERR_READERROR = MMSYSERR_BASE + 16;
+pub const MMSYSERR_WRITEERROR = MMSYSERR_BASE + 17;
+pub const MMSYSERR_DELETEERROR = MMSYSERR_BASE + 18;
+pub const MMSYSERR_VALNOTFOUND = MMSYSERR_BASE + 19;
+pub const MMSYSERR_NODRIVERCB = MMSYSERR_BASE + 20;
+pub const MMSYSERR_MOREDATA = MMSYSERR_BASE + 21;
+pub const MMSYSERR_LASTERROR = MMSYSERR_BASE + 21;
+
+pub const MMTIME = extern struct {
+    wType: UINT,
+    u: extern union {
+        ms: DWORD,
+        sample: DWORD,
+        cb: DWORD,
+        ticks: DWORD,
+        smpte: extern struct {
+            hour: BYTE,
+            min: BYTE,
+            sec: BYTE,
+            frame: BYTE,
+            fps: BYTE,
+            dummy: BYTE,
+            pad: [2]BYTE,
+        },
+        midi: extern struct {
+            songptrpos: DWORD,
+        },
+    },
+};
+pub const LPMMTIME = *MMTIME;
+pub const TIME_MS = 0x0001;
+pub const TIME_SAMPLES = 0x0002;
+pub const TIME_BYTES = 0x0004;
+pub const TIME_SMPTE = 0x0008;
+pub const TIME_MIDI = 0x0010;
+pub const TIME_TICKS = 0x0020;
+
+// timeapi.h
+pub const TIMECAPS = extern struct { wPeriodMin: UINT, wPeriodMax: UINT };
+pub const LPTIMECAPS = *TIMECAPS;
+pub const TIMERR_NOERROR = 0;
+pub const TIMERR_NOCANDO = TIMERR_BASE + 1;
+pub const TIMERR_STRUCT = TIMERR_BASE + 33;
+pub extern "winmm" fn timeBeginPeriod(uPeriod: UINT) callconv(WINAPI) MMRESULT;
+pub extern "winmm" fn timeEndPeriod(uPeriod: UINT) callconv(WINAPI) MMRESULT;
+pub extern "winmm" fn timeGetDevCaps(ptc: LPTIMECAPS, cbtc: UINT) callconv(WINAPI) MMRESULT;
+pub extern "winmm" fn timeGetSystemTime(pmmt: LPMMTIME, cbmmt: UINT) callconv(WINAPI) MMRESULT;
+pub extern "winmm" fn timeGetTime() callconv(WINAPI) DWORD;