From 46bb010ca7c5eb04551c030105f9999ca80e472f Mon Sep 17 00:00:00 2001 From: tobigun Date: Sun, 8 Jun 2008 15:33:48 +0000 Subject: - set svn:eol-style to native - removed some svn:executable properties from non-executable files git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/trunk@1144 b956fd51-792f-4845-bead-9b4dfca2ff2c --- Game/Code/lib/JEDI-SDL/SDL/Pas/sdlticks.pas | 392 ++++++++++++++-------------- 1 file changed, 196 insertions(+), 196 deletions(-) (limited to 'Game/Code/lib/JEDI-SDL/SDL/Pas/sdlticks.pas') diff --git a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlticks.pas b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlticks.pas index 8e00dd6f..a479b493 100644 --- a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlticks.pas +++ b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlticks.pas @@ -1,197 +1,197 @@ -unit sdlticks; -{ - $Id: sdlticks.pas,v 1.2 2006/11/08 08:22:48 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 } -{ } -{ Portions created by Dominique Louis are } -{ Copyright (C) 2004 - 2100 Dominique Louis. } -{ } -{ } -{ Contributor(s) } -{ -------------- } -{ Dominique Louis } -{ } -{ 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 1.2 2006/11/08 08:22:48 savage - updates tp sdlgameinterface and sdlticks functions. - - 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 - FStartTime : UInt32; - FTicksPerSecond : UInt32; - FElapsedLastTime : UInt32; - FFPSLastTime : UInt32; - FLockFPSLastTime : UInt32; - 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; - - {*************************************************************************** - GetGetElapsedSeconds - Returns the Elapsed time, since the function was last called. - ***************************************************************************} - function GetElapsedSeconds : Single; - - {*************************************************************************** - GetFPS - Returns the average frames per second. - 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 : 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 less than or equal to the targetFPS. - ***************************************************************************} - procedure LockFPS( targetFPS : Byte ); - end; - -implementation - -{ TSDLTicks } -constructor TSDLTicks.Create; -begin - inherited; - FTicksPerSecond := 1000; -end; - -destructor TSDLTicks.Destroy; -begin - inherited; -end; - -function TSDLTicks.GetElapsedSeconds : Single; -var - currentTime : Cardinal; -begin - currentTime := SDL_GetTicks; - - result := ( currentTime - FElapsedLastTime ) / FTicksPerSecond; - - // reset the timer - FElapsedLastTime := currentTime; -end; - -function TSDLTicks.GetFPS : Single; -var - currentTime, FrameTime : UInt32; - fps : single; -begin - currentTime := SDL_GetTicks; - - FrameTime := ( currentTime - FFPSLastTime ); - - if FrameTime = 0 then - FrameTime := 1; - - fps := FTicksPerSecond / FrameTime; - - // reset the timer - FFPSLastTime := currentTime; - result := fps; -end; - -function TSDLTicks.Init : boolean; -begin - FStartTime := SDL_GetTicks; - FElapsedLastTime := FStartTime; - FFPSLastTime := FStartTime; - FLockFPSLastTime := FStartTime; - result := true; -end; - -procedure TSDLTicks.LockFPS( targetFPS : Byte ); -var - currentTime : UInt32; - targetTime : single; -begin - if ( targetFPS = 0 ) then - targetFPS := 1; - - targetTime := FTicksPerSecond / targetFPS; - - // delay to maintain a constant frame rate - repeat - currentTime := SDL_GetTicks; - until ( ( currentTime - FLockFPSLastTime ) > targetTime ); - - // reset the timer - FLockFPSLastTime := currentTime; -end; - -end. - +unit sdlticks; +{ + $Id: sdlticks.pas,v 1.2 2006/11/08 08:22:48 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 } +{ } +{ Portions created by Dominique Louis are } +{ Copyright (C) 2004 - 2100 Dominique Louis. } +{ } +{ } +{ Contributor(s) } +{ -------------- } +{ Dominique Louis } +{ } +{ 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 1.2 2006/11/08 08:22:48 savage + updates tp sdlgameinterface and sdlticks functions. + + 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 + FStartTime : UInt32; + FTicksPerSecond : UInt32; + FElapsedLastTime : UInt32; + FFPSLastTime : UInt32; + FLockFPSLastTime : UInt32; + 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; + + {*************************************************************************** + GetGetElapsedSeconds + Returns the Elapsed time, since the function was last called. + ***************************************************************************} + function GetElapsedSeconds : Single; + + {*************************************************************************** + GetFPS + Returns the average frames per second. + 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 : 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 less than or equal to the targetFPS. + ***************************************************************************} + procedure LockFPS( targetFPS : Byte ); + end; + +implementation + +{ TSDLTicks } +constructor TSDLTicks.Create; +begin + inherited; + FTicksPerSecond := 1000; +end; + +destructor TSDLTicks.Destroy; +begin + inherited; +end; + +function TSDLTicks.GetElapsedSeconds : Single; +var + currentTime : Cardinal; +begin + currentTime := SDL_GetTicks; + + result := ( currentTime - FElapsedLastTime ) / FTicksPerSecond; + + // reset the timer + FElapsedLastTime := currentTime; +end; + +function TSDLTicks.GetFPS : Single; +var + currentTime, FrameTime : UInt32; + fps : single; +begin + currentTime := SDL_GetTicks; + + FrameTime := ( currentTime - FFPSLastTime ); + + if FrameTime = 0 then + FrameTime := 1; + + fps := FTicksPerSecond / FrameTime; + + // reset the timer + FFPSLastTime := currentTime; + result := fps; +end; + +function TSDLTicks.Init : boolean; +begin + FStartTime := SDL_GetTicks; + FElapsedLastTime := FStartTime; + FFPSLastTime := FStartTime; + FLockFPSLastTime := FStartTime; + result := true; +end; + +procedure TSDLTicks.LockFPS( targetFPS : Byte ); +var + currentTime : UInt32; + targetTime : single; +begin + if ( targetFPS = 0 ) then + targetFPS := 1; + + targetTime := FTicksPerSecond / targetFPS; + + // delay to maintain a constant frame rate + repeat + currentTime := SDL_GetTicks; + until ( ( currentTime - FLockFPSLastTime ) > targetTime ); + + // reset the timer + FLockFPSLastTime := currentTime; +end; + +end. + \ No newline at end of file -- cgit v1.2.3