2006-04-24 01:14:18 +02:00
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#include "precompiled.h"
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#include "lib/posix.h"
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#include "lib/lib.h"
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#include "Atlas.h"
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//----------------------------------------------------------------------------
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// Atlas (map editor) integration
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//----------------------------------------------------------------------------
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static void* const ATLAS_SO_UNAVAILABLE = (void*)-1;
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static void* atlas_so_handle;
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// free reference to Atlas UI SO (avoids resource leak report)
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void ATLAS_Shutdown()
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{
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// (avoid dlclose warnings)
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if(atlas_so_handle != 0 && atlas_so_handle != ATLAS_SO_UNAVAILABLE)
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dlclose(atlas_so_handle);
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}
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// return true if the Atlas UI shared object is available;
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// used to disable the main menu editor button if not.
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// note: this actually loads the SO, but that isn't expected to be slow.
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// call ATLAS_Shutdown at exit to avoid leaking it.
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static bool ATLAS_IsAvailable()
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{
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// first time: try to open Atlas UI shared object
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// postcondition: atlas_so_handle valid or == ATLAS_SO_UNAVAILABLE.
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if(atlas_so_handle == 0)
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{
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// since this SO exports a C++ interface, it is critical that
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// compiler options are the same between app and SO; therefore,
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// we need to go with the debug version in debug builds.
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// note: on Windows, the extension is replaced with .dll by dlopen.
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#ifndef NDEBUG
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2006-06-03 07:08:32 +02:00
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const char* so_name = "AtlasUI_dbg.so";
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2006-04-24 01:14:18 +02:00
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#else
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const char* so_name = "AtlasUI.so";
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#endif
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// we don't really care when relocations take place, but one of
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// {RTLD_NOW, RTLD_LAZY} must be passed. go with the former because
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// it is safer and matches the Windows load behavior.
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const int flags = RTLD_LOCAL|RTLD_NOW;
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atlas_so_handle = dlopen(so_name, flags);
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// open failed (mostly likely SO not found)
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if(!atlas_so_handle)
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atlas_so_handle = ATLAS_SO_UNAVAILABLE;
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}
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return atlas_so_handle != ATLAS_SO_UNAVAILABLE;
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}
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enum AtlasRunFlags
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{
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// used by ATLAS_RunIfOnCmdLine; makes any error output go through
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// DISPLAY_ERROR rather than a GUI dialog box (because GUI init was
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// skipped to reduce load time).
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ATLAS_NO_GUI = 1
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};
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// starts the Atlas UI.
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static void ATLAS_Run(int argc, char* argv[], int flags = 0)
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{
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// first check if we can run at all
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if(!ATLAS_IsAvailable())
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{
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if(flags & ATLAS_NO_GUI)
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DISPLAY_ERROR(L"The Atlas UI was not successfully loaded and therefore cannot be started as requested.");
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else
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DISPLAY_ERROR(L"The Atlas UI was not successfully loaded and therefore cannot be started as requested.");// TODO: implement GUI error message
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return;
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}
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// TODO (make nicer)
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extern bool BeginAtlas(int argc, char* argv[], void* dll);
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if (!BeginAtlas(argc, argv, atlas_so_handle))
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{
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debug_warn("Atlas loading failed");
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return;
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}
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}
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// starts the Atlas UI if an "-editor" switch is found on the command line.
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// this is the alternative to starting the main menu and clicking on
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// the editor button; it is much faster because it's called during early
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// init and therefore skips GUI setup.
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// notes:
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// - GUI init still runs, but some GUI setup will be skipped since
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// ATLAS_IsRunning() will return true.
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// - could be merged into CFG_ParseCommandLineArgs, because that appears
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// to be called early enough. it's not really worth it because this
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// code is quite simple and we thus avoid startup order dependency.
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void ATLAS_RunIfOnCmdLine(int argc, char* argv[])
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{
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for(int i = 1; i < argc; i++) // skip program name argument
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{
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if(!strcmp(argv[i], "-editor"))
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{
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// don't bother removing this param (unnecessary)
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ATLAS_Run(argc, argv, ATLAS_NO_GUI);
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break;
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}
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}
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}
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