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@ -38,31 +38,16 @@ distribution.
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#include <string>
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#include <map>
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typedef struct interpose_s
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{
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void *new_func;
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void *orig_func;
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} interpose_t;
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#include "DFHack.h"
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#include "Core.h"
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#include "Hooks.h"
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#include <iostream>
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static const interpose_t interposers[] __attribute__ ((section("__DATA, __interpose"))) =
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{
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{ (void *)DFH_SDL_Init, (void *)SDL_Init },
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{ (void *)DFH_SDL_PollEvent, (void *)SDL_PollEvent },
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{ (void *)DFH_SDL_Quit, (void *)SDL_Quit },
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{ (void *)DFH_SDL_NumJoysticks, (void *)SDL_NumJoysticks },
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};
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/*******************************************************************************
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* SDL part starts here *
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*******************************************************************************/
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// hook - called for each game tick (or more often)
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DFhackCExport int DFH_SDL_NumJoysticks(void)
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DFhackCExport int SDL_NumJoysticks(void)
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{
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DFHack::Core & c = DFHack::Core::getInstance();
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return c.Update();
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@ -70,24 +55,23 @@ DFhackCExport int DFH_SDL_NumJoysticks(void)
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// hook - called at program exit
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static void (*_SDL_Quit)(void) = 0;
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DFhackCExport void DFH_SDL_Quit(void)
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DFhackCExport void SDL_Quit(void)
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{
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DFHack::Core & c = DFHack::Core::getInstance();
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c.Shutdown();
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/*if(_SDL_Quit)
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if(_SDL_Quit)
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{
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_SDL_Quit();
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}*/
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SDL_Quit();
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}
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}
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// called by DF to check input events
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static int (*_SDL_PollEvent)(SDL_Event* event) = 0;
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DFhackCExport int DFH_SDL_PollEvent(SDL_Event* event)
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static int (*_SDL_PollEvent)(SDL::Event* event) = 0;
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DFhackCExport int SDL_PollEvent(SDL::Event* event)
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{
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pollevent_again:
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// if SDL returns 0 here, it means there are no more events. return 0
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int orig_return = SDL_PollEvent(event);
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int orig_return = _SDL_PollEvent(event);
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if(!orig_return)
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return 0;
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// otherwise we have an event to filter
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@ -95,7 +79,7 @@ DFhackCExport int DFH_SDL_PollEvent(SDL_Event* event)
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{
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DFHack::Core & c = DFHack::Core::getInstance();
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// if we consume the event, ask SDL for more.
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if(!c.DFH_SDL_Event(event))
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if(!c.SDL_Event(event))
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goto pollevent_again;
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}
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return orig_return;
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@ -127,21 +111,20 @@ DFhackCExport int wgetch(WINDOW *win)
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// hook - called at program start, initialize some stuffs we'll use later
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static int (*_SDL_Init)(uint32_t flags) = 0;
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DFhackCExport int DFH_SDL_Init(uint32_t flags)
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DFhackCExport int SDL_Init(uint32_t flags)
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{
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// reroute stderr
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fprintf(stderr,"dfhack: attempting to hook in\n");
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freopen("stderr.log", "w", stderr);
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// we don't reroute stdout until we figure out if this should be done at all
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// See: Console-linux.cpp
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// find real functions -- unnecessary in Mac OS X
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// _SDL_Init = (int (*)( uint32_t )) dlsym(RTLD_NEXT, "SDL_Init");
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// _SDL_Quit = (void (*)( void )) dlsym(RTLD_NEXT, "SDL_Quit");
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// _SDL_PollEvent = (int (*)(SDL::Event*))dlsym(RTLD_NEXT,"SDL_PollEvent");
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// find real functions
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_SDL_Init = (int (*)( uint32_t )) dlsym(RTLD_NEXT, "SDL_Init");
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_SDL_Quit = (void (*)( void )) dlsym(RTLD_NEXT, "SDL_Quit");
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_SDL_PollEvent = (int (*)(SDL::Event*))dlsym(RTLD_NEXT,"SDL_PollEvent");
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// check if we got them
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/* if(_SDL_Init && _SDL_Quit && _SDL_PollEvent)
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if(_SDL_Init && _SDL_Quit && _SDL_PollEvent)
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{
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fprintf(stderr,"dfhack: hooking successful\n");
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}
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@ -150,11 +133,11 @@ DFhackCExport int DFH_SDL_Init(uint32_t flags)
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// bail, this would be a disaster otherwise
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fprintf(stderr,"dfhack: something went horribly wrong\n");
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exit(1);
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}*/
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}
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/*
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DFHack::Core & c = DFHack::Core::getInstance();
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c.Init();
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*/
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int ret = SDL_Init(flags);
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int ret = _SDL_Init(flags);
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return ret;
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}
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}
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Timothy Collett