mirror of
https://github.com/mangosfour/server.git
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ae3ad10bcf
+ Got rid of zip lib requirement in G3D...
Still can re-enable code by defining _HAVE_ZIP...
+ Remove silly X11 lib dependency from G3D
Code doesn't seem to do anything yet anyway, and even if, we don't want it :p
+ Fix another weird G3D build problem...
+ Remove some __asm usage in g3d, which is not available on Win64
My editor also decided to remove a ton of trailing white spaces...tss...
+ Reapply G3D fixes for 64bit VC
+ not use SSE specific header when SSE not enabled in *nix
+ Updated project files
+ New vmap_assembler VC90/VC80 Project
+ vmap assembler binaries updates
NOTE: Old vmap fikes expected work (as tests show) with new library version.
But better use new generated versions. Its different in small parts to bad or good...
(based on Lynx3d's repo commit 44798d3)
Signed-off-by: VladimirMangos <vladimir@getmangos.com>
144 lines
3.6 KiB
C++
144 lines
3.6 KiB
C++
/**
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@file Stopwatch.h
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@maintainer Morgan McGuire, http://graphics.cs.williams.edu
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@created 2005-10-05
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@edited 2009-05-10
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Copyright 2000-2009, Morgan McGuire.
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All rights reserved.
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*/
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#ifndef G3D_Stopwatch_h
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#define G3D_Stopwatch_h
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#include "G3D/platform.h"
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#include "G3D/Queue.h"
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#include "G3D/G3DGameUnits.h"
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#include "G3D/g3dmath.h"
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namespace G3D {
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/**
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\brief Accurately measure durations and framerates.
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Example 1: For profiling code in the context of a rendering loop:
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<pre>
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sw.tick();
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...timed code...
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sw.tock();
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screenPrintf("%f\n", sw.smoothFPS());
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</pre>
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Example 2: For profiling pieces of a sequence:
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<pre>
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Stopwatch sw;
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slowOperation();
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sw.after("slowOperation");
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kdTree.balance();
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sw.after("Balance tree");
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</pre>
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*/
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class Stopwatch {
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private:
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std::string myName;
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double startTime;
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std::string prevMark;
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double prevTime;
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/** True between tick and tock */
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bool inBetween;
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/** The initial cycle count. */
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uint64 cycleStart;
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/** The time at which tick was called. */
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RealTime timeStart;
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/** The time at which the previous tock was called, -1 if never. */
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RealTime lastTockTime;
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RealTime lastDuration;
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int64 lastCycleCount;
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/** Frames per second. */
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double m_fps;
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/** Weighted fps */
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double emwaFPS;
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double m_smoothFPS;
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/** Weighted duration */
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RealTime emwaDuration;
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/** The overhead for calling into the class. */
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int64 cycleOverhead;
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/** Called from the constructor. */
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void computeOverhead();
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public:
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Stopwatch(const std::string& name = "Stopwatch");
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/** Returns the number of times that tick was called per wall-clock second;
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e.g. frames-per-second. */
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double FPS() const {
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return m_fps;
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}
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/** Amount of time between the most recent tick and tock calls. 0 if tick has
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never been called. */
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RealTime elapsedTime() const {
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return lastDuration;
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}
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/** Time-smoothed value that is stable to the nearest 1%.
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This is useful if you are displaying elapsed time in real-time
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and want a stable number.*/
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RealTime smoothElapsedTime() const {
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return emwaDuration;
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}
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/** Time-smoothed value of fps that is stable to the nearest integer for fps > 10 and
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to the first decimal place for fps <= 10.
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This is useful if you
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are displaying the frame rate in real-time and want a stable (readable) number.*/
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double smoothFPS() const {
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return m_smoothFPS;
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}
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/** The elapsed cycle time between tick and tock. An attempt is made to factor out all
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tick/tock overhead, so that back-to-back calls should return zero.
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Unreliable on non-x86 platforms.*/
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uint64 elapsedCycles() const {
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return lastCycleCount;
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}
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/** Call at the beginning of the period that you want timed. */
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void tick();
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/** Call at the end of the period that you want timed. */
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void tock();
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/** Reset the start time used by after() and the emwa value.*/
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void reset();
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/** Call after an operation has completed, with the name of the operation, to
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print a debug message listing the time since the previous after() call. */
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void after(const std::string& s = "");
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};
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/** Because it is hard to remember the proper capitalization. */
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typedef Stopwatch StopWatch;
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}
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#endif
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