From 4b9ce55ebe2fce02841a2d5d283b5f02f9a534eb Mon Sep 17 00:00:00 2001
From: Drew DeVault <sir@cmpwn.com>
Date: Thu, 9 Dec 2021 16:16:33 +0100
Subject: Add timer.h functions

---
 sdl2/timer.ha | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 sdl2/timer.ha

(limited to 'sdl2/timer.ha')

diff --git a/sdl2/timer.ha b/sdl2/timer.ha
new file mode 100644
index 0000000..da958b6
--- /dev/null
+++ b/sdl2/timer.ha
@@ -0,0 +1,32 @@
+// Get the number of milliseconds since SDL library initialization.
+//
+// This value wraps if the program runs for more than ~49 days.
+//
+// Returns an unsigned 32-bit value representing the number of milliseconds
+// since the SDL library initialized.
+export @symbol("SDL_GetTicks") fn getticks() u32;
+
+// Get the current value of the high resolution counter.
+//
+// This function is typically used for profiling.
+//
+// The counter values are only meaningful relative to each other. Differences
+// between values can be converted to times by using
+// [[getperformancefrequency]].
+//
+// Returns the current counter value.
+export @symbol("SDL_GetPerformanceCounter") fn getperformancecounter() u64;
+
+// Get the count per second of the high resolution counter.
+//
+// Returns a platform-specific count per second.
+export @symbol("SDL_GetPerformanceFrequency") fn getperformancefrequency() u64;
+
+// Wait a specified number of milliseconds before returning.
+//
+// This function waits a specified number of milliseconds before returning. It
+// waits at least the specified time, but possibly longer due to OS
+// scheduling.
+export @symbol("SDL_Delay") fn delay(ms: u32) void;
+
+// TODO: Timers
-- 
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