diff options
Diffstat (limited to 'Game/Code/lib/JEDI-SDLv1.0/SDL/Pas/sdlticks.pas')
| -rw-r--r-- | Game/Code/lib/JEDI-SDLv1.0/SDL/Pas/sdlticks.pas | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/Game/Code/lib/JEDI-SDLv1.0/SDL/Pas/sdlticks.pas b/Game/Code/lib/JEDI-SDLv1.0/SDL/Pas/sdlticks.pas deleted file mode 100644 index 4e91ecb8..00000000 --- a/Game/Code/lib/JEDI-SDLv1.0/SDL/Pas/sdlticks.pas +++ /dev/null @@ -1,196 +0,0 @@ -unit sdlticks;
-{
- $Id: sdlticks.pas,v 1.1 2004/09/30 22:35:47 savage Exp $
-
-}
-{******************************************************************************}
-{ }
-{ JEDI-SDL : Pascal units for SDL - Simple DirectMedia Layer }
-{ SDL GetTicks Class Wrapper }
-{ }
-{ }
-{ The initial developer of this Pascal code was : }
-{ Dominique Louis <Dominique@SavageSoftware.com.au> }
-{ }
-{ Portions created by Dominique Louis are }
-{ Copyright (C) 2004 - 2100 Dominique Louis. }
-{ }
-{ }
-{ Contributor(s) }
-{ -------------- }
-{ Dominique Louis <Dominique@SavageSoftware.com.au> }
-{ }
-{ Obtained through: }
-{ Joint Endeavour of Delphi Innovators ( Project JEDI ) }
-{ }
-{ You may retrieve the latest version of this file at the Project }
-{ JEDI home page, located at http://delphi-jedi.org }
-{ }
-{ The contents of this file are used with permission, subject to }
-{ the Mozilla Public License Version 1.1 (the "License"); you may }
-{ not use this file except in compliance with the License. You may }
-{ obtain a copy of the License at }
-{ http://www.mozilla.org/MPL/MPL-1.1.html }
-{ }
-{ Software distributed under the License is distributed on an }
-{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or }
-{ implied. See the License for the specific language governing }
-{ rights and limitations under the License. }
-{ }
-{ Description }
-{ ----------- }
-{ SDL Window Wrapper }
-{ }
-{ }
-{ Requires }
-{ -------- }
-{ SDL.dll on Windows platforms }
-{ libSDL-1.1.so.0 on Linux platform }
-{ }
-{ Programming Notes }
-{ ----------------- }
-{ }
-{ }
-{ }
-{ }
-{ Revision History }
-{ ---------------- }
-{ }
-{ September 23 2004 - DL : Initial Creation }
-{
- $Log: sdlticks.pas,v $
- Revision 1.1 2004/09/30 22:35:47 savage
- Changes, enhancements and additions as required to get SoAoS working.
-
-
-}
-{******************************************************************************}
-
-interface
-
-uses
- sdl;
-
-
-type
- TSDLTicks = class
- private
- m_startTime : Int64;
- m_ticksPerSecond : Int64;
- s_lastTime : Int64;
-
- public
- constructor Create;
- destructor Destroy; override; // destructor
-
- {*****************************************************************************
- Init
-
- If the hi-res timer is present, the tick rate is stored and the function
- returns true. Otherwise, the function returns false, and the timer should
- not be used.
- *****************************************************************************}
- function Init : boolean;
-
- function GetElapsedSeconds( elapsedFrames : Cardinal = 1 ) : single;
-
- {***************************************************************************
- GetFPS
-
- Returns the average frames per second over elapsedFrames, which defaults to
- one. If this is not called every frame, the client should track the number
- of frames itself, and reset the value after this is called.
- ***************************************************************************}
- function GetFPS( elapsedFrames : Cardinal = 1 ) : single;
-
- {***************************************************************************
- LockFPS
-
- Used to lock the frame rate to a set amount. This will block until enough
- time has passed to ensure that the fps won't go over the requested amount.
- Note that this can only keep the fps from going above the specified level;
- it can still drop below it. It is assumed that if used, this function will
- be called every frame. The value returned is the instantaneous fps, which
- will be <= targetFPS.
- ***************************************************************************}
- function LockFPS( targetFPS : Byte ) : single;
- end;
-
-implementation
-
-{ TSDLTicks }
-constructor TSDLTicks.Create;
-begin
-
-end;
-
-destructor TSDLTicks.Destroy;
-begin
-
- inherited;
-end;
-
-function TSDLTicks.GetElapsedSeconds( elapsedFrames: Cardinal ): single;
-var
- currentTime : Int64;
-begin
- // s_lastTime := m_startTime;
-
- currentTime := SDL_GetTicks;
- //QueryPerformanceCounter( currentTime );
-
- result := (currentTime - s_lastTime) / m_ticksPerSecond;
-
- // reset the timer
- s_lastTime := currentTime;
-end;
-
-function TSDLTicks.GetFPS( elapsedFrames: Cardinal ): single;
-var
- currentTime : integer;
- fps : single;
-begin
- // s_lastTime := m_startTime;
-
- currentTime := SDL_GetTicks;
-
- fps := elapsedFrames * m_ticksPerSecond / ( currentTime - s_lastTime);
-
- // reset the timer
- s_lastTime := currentTime;
-
- result := fps;
-end;
-
-function TSDLTicks.Init: boolean;
-begin
- m_startTime := SDL_GetTicks;
- s_lastTime := m_startTime;
- m_ticksPerSecond := 1000;
- result := true;
-end;
-
-function TSDLTicks.LockFPS(targetFPS: Byte): single;
-var
- currentTime : integer;
- fps : single;
-begin
- if (targetFPS = 0) then
- targetFPS := 1;
-
- s_lastTime := m_startTime;
-
- // delay to maintain a constant frame rate
- repeat
- currentTime := SDL_GetTicks;
- fps := m_ticksPerSecond / (currentTime - s_lastTime);
- until (fps > targetFPS);
-
- // reset the timer
- s_lastTime := m_startTime;
-
- result := fps;
-end;
-
-end.
-
\ No newline at end of file |