f3e2b8b74c
This is done by adding platform.zig which is a file providing types like ``CoreType``, ``GpuDriverType`` and ``BackingTimerType``.
38 lines
1.1 KiB
Zig
38 lines
1.1 KiB
Zig
const std = @import("std");
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const platform = @import("platform.zig");
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const Timer = @This();
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backing_timer: platform.BackingTimerType = undefined,
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/// Initialize the timer.
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pub fn start() !Timer {
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return Timer{
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.backing_timer = try platform.BackingTimerType.start(),
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};
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}
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/// Reads the timer value since start or the last reset in nanoseconds.
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pub inline fn readPrecise(timer: *Timer) u64 {
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return timer.backing_timer.read();
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}
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/// Reads the timer value since start or the last reset in seconds.
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pub inline fn read(timer: *Timer) f32 {
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return @intToFloat(f32, timer.readPrecise()) / @intToFloat(f32, std.time.ns_per_s);
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}
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/// Resets the timer value to 0/now.
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pub inline fn reset(timer: *Timer) void {
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timer.backing_timer.reset();
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}
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/// Returns the current value of the timer in nanoseconds, then resets it.
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pub inline fn lapPrecise(timer: *Timer) u64 {
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return timer.backing_timer.lap();
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}
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/// Returns the current value of the timer in seconds, then resets it.
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pub inline fn lap(timer: *Timer) f32 {
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return @intToFloat(f32, timer.lapPrecise()) / @intToFloat(f32, std.time.ns_per_s);
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}
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