Initial Source Code commit
Initial commit of original Tiberian Dawn and Red Alert source code converted to build as DLLs, and compatible with the release version of Command & Conquer Remastered.
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REDALERT/WIN32LIB/PROFILE.H
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REDALERT/WIN32LIB/PROFILE.H
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//
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// Copyright 2020 Electronic Arts Inc.
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//
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is free
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// software: you can redistribute it and/or modify it under the terms of
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// the GNU General Public License as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is distributed
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// in the hope that it will be useful, but with permitted additional restrictions
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// under Section 7 of the GPL. See the GNU General Public License in LICENSE.TXT
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// distributed with this program. You should have received a copy of the
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// GNU General Public License along with permitted additional restrictions
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// with this program. If not, see https://github.com/electronicarts/CnC_Remastered_Collection
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/***********************************************************************************************
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*** C O N F I D E N T I A L --- W E S T W O O D S T U D I O S ***
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***********************************************************************************************
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* *
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* Project Name : Library profiler *
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* *
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* File Name : PROFILE.H *
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* *
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* Programmer : Steve Tall *
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* *
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* Start Date : 11/17/95 *
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* *
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* Last Update : November 20th 1995 [ST] *
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* *
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*---------------------------------------------------------------------------------------------*
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* Overview: *
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* *
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* New System *
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* ~~~~~~~~~~~ *
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* *
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* The new profiler system creates a seperate thread and then starts a timer off there. The *
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* timer in the second thread uses GetThreadContext to sample the IP address of each user *
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* thread. This system has the advantage of being able to sample what is happening in all the *
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* threads we own not just the main thread. Another advantage is that it doesnt require a *
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* major recompilation. *
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* The disadvantage is that we dont really know what is going on when the IP is outside the *
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* scope of our threads - We could be in direct draw, direct sound or even something like the *
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* VMM and there is no way to tell. *
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* *
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* *
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* *
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* Old System *
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* ~~~~~~~~~~~ *
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* *
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* The profiler works by using the function prologue and epilogue hooks available in Watcom *
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* to register the current functions address in a global variable and then sampling the *
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* contents of the variable using a windows timer which runs at up to 1000 samples per second.*
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* *
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* Compile the code to be sampled with the -ep and -ee flags to enable the prologue (__PRO) *
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* and epilogue (__EPI) calls to be generated. *
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* At the beginning of the section to be profiled (just before main loop normally) call the *
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* Start_Profiler function to start sampling. At the end of the section, call Stop_Profiler *
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* which will stop the timer and write the profile data to disk in the PROFILE.BIN file. *
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* *
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* Use PROFILE.EXE to view the results of the session. *
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* *
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* The addition of prologue and epilogue code will slow down the product and the profiler *
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* allocates a huge buffer for data so it should not be linked in unless it is going to be *
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* used. *
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* *
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* The advantage of the prologue/epilogue approach is that all samples represent valid *
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* addresses within our code so we get valid results we can use even when the IP is in system *
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* code. *
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* *
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* *
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*---------------------------------------------------------------------------------------------*
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* *
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* Functions: *
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* *
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* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#define MAX_PROFILE_TIME 60*1 //1 minute(s) @ 14.4 Mb per hour
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#define PROFILE_RATE 1000 //samples per sec (max 1000)
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/*
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* Defines for choosing between the old and new profiler system
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*
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*/
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#define OLD_PROFILE_SYSTEM 1
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#define NEW_PROFILE_SYSTEM 2
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//#define PROFILE_SYSTEM OLD_PROFILE_SYSTEM
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#define PROFILE_SYSTEM NEW_PROFILE_SYSTEM
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extern "C"{
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void __cdecl Profile_Init(void);
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void __cdecl Profile_End(void);
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void __cdecl Start_Profiler(void);
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void __cdecl Stop_Profiler(void);
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}
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