module.c

/*
 * Modules
 *
 * Copyright 1995 Alexandre Julliard
 *
 * Modified for use with MPlayer, detailed CVS changelog at
 * http://www.mplayerhq.hu/cgi-bin/cvsweb.cgi/main/
 * $Id: module.c 11593 2005-06-28 18:02:01Z courmisch $
 *
 */

// define for quicktime calls debugging and/or MacOS-level emulation:
#define EMU_QTX_API

// define for quicktime debugging (verbose logging):
//#define DEBUG_QTX_API

#include "config.h"

#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/mman.h>
#include <inttypes.h>

#include "wine/windef.h"
#include "wine/winerror.h"
#include "wine/heap.h"
#include "wine/module.h"
#include "wine/pe_image.h"
#include "wine/debugtools.h"

#undef HAVE_LIBDL

#ifdef HAVE_LIBDL
#include <dlfcn.h>
#include "wine/elfdll.h"
#endif
#include "win32.h"
#include "driver.h"

#ifdef EMU_QTX_API
#include "wrapper.h"
static int report_func(void *stack_base, int stack_size, reg386_t *reg, uint32_t *flags);
static int report_func_ret(void *stack_base, int stack_size, reg386_t *reg, uint32_t *flags);
#endif

//#undef TRACE
//#define TRACE printf

//WINE_MODREF *local_wm=NULL;
modref_list* local_wm=NULL;

HANDLE SegptrHeap;

WINE_MODREF* MODULE_FindModule(LPCSTR m)
{
    modref_list* list=local_wm;
    TRACE("FindModule: Module %s request\n", m);
    if(list==NULL)
        return NULL;
//    while(strcmp(m, list->wm->filename))
    while(!strstr(list->wm->filename, m))
    {
        TRACE("%s: %x\n", list->wm->filename, list->wm->module);
        list=list->prev;
        if(list==NULL)
            return NULL;
    }
    TRACE("Resolved to %s\n", list->wm->filename);
    return list->wm;
}

static void MODULE_RemoveFromList(WINE_MODREF *mod)
{
    modref_list* list=local_wm;
    if(list==0)
        return;
    if(mod==0)
        return;
    if((list->prev==NULL)&&(list->next==NULL))
    {
        free(list);
        local_wm=NULL;
//      uninstall_fs();
        return;
    }
    for(;list;list=list->prev)
    {
        if(list->wm==mod)
        {
            if(list->prev)
                list->prev->next=list->next;
            if(list->next)
                list->next->prev=list->prev;
            if(list==local_wm)
                local_wm=list->prev;
            free(list);
            return;
        }
    }

}

WINE_MODREF *MODULE32_LookupHMODULE(HMODULE m)
{
    modref_list* list=local_wm;
    TRACE("LookupHMODULE: Module %X request\n", m);
    if(list==NULL)
    {
        TRACE("LookupHMODULE failed\n");
        return NULL;
    }
    while(m!=list->wm->module)
    {
//      printf("Checking list %X wm %X module %X\n",
//      list, list->wm, list->wm->module);
        list=list->prev;
        if(list==NULL)
        {
            TRACE("LookupHMODULE failed\n");
            return NULL;
        }
    }
    TRACE("LookupHMODULE hit %p\n", list->wm);
    return list->wm;
}

/*************************************************************************
 *              MODULE_InitDll
 */
static WIN_BOOL MODULE_InitDll( WINE_MODREF *wm, DWORD type, LPVOID lpReserved )
{
    WIN_BOOL retv = TRUE;

    static LPCSTR typeName[] = { "PROCESS_DETACH", "PROCESS_ATTACH",
                                 "THREAD_ATTACH", "THREAD_DETACH" };
    assert( wm );


    /* Skip calls for modules loaded with special load flags */

    if (    ( wm->flags & WINE_MODREF_DONT_RESOLVE_REFS )
         || ( wm->flags & WINE_MODREF_LOAD_AS_DATAFILE ) )
        return TRUE;


    TRACE("(%s,%s,%p) - CALL\n", wm->modname, typeName[type], lpReserved );

    /* Call the initialization routine */
    switch ( wm->type )
    {
    case MODULE32_PE:
        retv = PE_InitDLL( wm, type, lpReserved );
        break;

    case MODULE32_ELF:
        /* no need to do that, dlopen() already does */
        break;

    default:
        ERR("wine_modref type %d not handled.\n", wm->type );
        retv = FALSE;
        break;
    }

    /* The state of the module list may have changed due to the call
       to PE_InitDLL. We cannot assume that this module has not been
       deleted.  */
    TRACE("(%p,%s,%p) - RETURN %d\n", wm, typeName[type], lpReserved, retv );

    return retv;
}

/*************************************************************************
 *              MODULE_DllProcessAttach
 *
 * Send the process attach notification to all DLLs the given module
 * depends on (recursively). This is somewhat complicated due to the fact that
 *
 * - we have to respect the module dependencies, i.e. modules implicitly
 *   referenced by another module have to be initialized before the module
 *   itself can be initialized
 *
 * - the initialization routine of a DLL can itself call LoadLibrary,
 *   thereby introducing a whole new set of dependencies (even involving
 *   the 'old' modules) at any time during the whole process
 *
 * (Note that this routine can be recursively entered not only directly
 *  from itself, but also via LoadLibrary from one of the called initialization
 *  routines.)
 *
 * Furthermore, we need to rearrange the main WINE_MODREF list to allow
 * the process *detach* notifications to be sent in the correct order.
 * This must not only take into account module dependencies, but also
 * 'hidden' dependencies created by modules calling LoadLibrary in their
 * attach notification routine.
 *
 * The strategy is rather simple: we move a WINE_MODREF to the head of the
 * list after the attach notification has returned.  This implies that the
 * detach notifications are called in the reverse of the sequence the attach
 * notifications *returned*.
 *
 * NOTE: Assumes that the process critical section is held!
 *
 */
static WIN_BOOL MODULE_DllProcessAttach( WINE_MODREF *wm, LPVOID lpReserved )
{
    WIN_BOOL retv = TRUE;
    int i;
    assert( wm );

    /* prevent infinite recursion in case of cyclical dependencies */
    if (    ( wm->flags & WINE_MODREF_MARKER )
         || ( wm->flags & WINE_MODREF_PROCESS_ATTACHED ) )
        return retv;

    TRACE("(%s,%p) - START\n", wm->modname, lpReserved );

    /* Tag current MODREF to prevent recursive loop */
    wm->flags |= WINE_MODREF_MARKER;

    /* Recursively attach all DLLs this one depends on */
/*    for ( i = 0; retv && i < wm->nDeps; i++ )
        if ( wm->deps[i] )
            retv = MODULE_DllProcessAttach( wm->deps[i], lpReserved );
*/
    /* Call DLL entry point */

    //local_wm=wm;
    if(local_wm)
    {
        local_wm->next = (modref_list*) malloc(sizeof(modref_list));
        local_wm->next->prev=local_wm;
        local_wm->next->next=NULL;
        local_wm->next->wm=wm;
        local_wm=local_wm->next;
    }
    else
    {
        local_wm = (modref_list*)malloc(sizeof(modref_list));
        local_wm->next=local_wm->prev=NULL;
        local_wm->wm=wm;
    }
    /* Remove recursion flag */
    wm->flags &= ~WINE_MODREF_MARKER;

    if ( retv )
    {
        retv = MODULE_InitDll( wm, DLL_PROCESS_ATTACH, lpReserved );
        if ( retv )
            wm->flags |= WINE_MODREF_PROCESS_ATTACHED;
    }


    TRACE("(%s,%p) - END\n", wm->modname, lpReserved );

    return retv;
}

/*************************************************************************
 *              MODULE_DllProcessDetach
 *
 * Send DLL process detach notifications.  See the comment about calling
 * sequence at MODULE_DllProcessAttach.  Unless the bForceDetach flag
 * is set, only DLLs with zero refcount are notified.
 */
static void MODULE_DllProcessDetach( WINE_MODREF* wm, WIN_BOOL bForceDetach, LPVOID lpReserved )
{
    //    WINE_MODREF *wm=local_wm;
    modref_list* l = local_wm;
    wm->flags &= ~WINE_MODREF_PROCESS_ATTACHED;
    MODULE_InitDll( wm, DLL_PROCESS_DETACH, lpReserved );
/*    while (l)
    {
        modref_list* f = l;
        l = l->next;
        free(f);
    }
    local_wm = 0;*/
}

/***********************************************************************
 *      MODULE_LoadLibraryExA   (internal)
 *
 * Load a PE style module according to the load order.
 *
 * The HFILE parameter is not used and marked reserved in the SDK. I can
 * only guess that it should force a file to be mapped, but I rather
 * ignore the parameter because it would be extremely difficult to
 * integrate this with different types of module represenations.
 *
 */
static WINE_MODREF *MODULE_LoadLibraryExA( LPCSTR libname, HFILE hfile, DWORD flags )
{
        DWORD err = GetLastError();
        WINE_MODREF *pwm;
        int i;
//      module_loadorder_t *plo;

        SetLastError( ERROR_FILE_NOT_FOUND );
        TRACE("Trying native dll '%s'\n", libname);
        pwm = PE_LoadLibraryExA(libname, flags);
#ifdef HAVE_LIBDL
        if(!pwm)
        {
            TRACE("Trying ELF dll '%s'\n", libname);
            pwm=(WINE_MODREF*)ELFDLL_LoadLibraryExA(libname, flags);
        }
#endif
//              printf("0x%08x\n", pwm);
//              break;
        if(pwm)
        {
                /* Initialize DLL just loaded */
                TRACE("Loaded module '%s' at 0x%08x, \n", libname, pwm->module);
                /* Set the refCount here so that an attach failure will */
                /* decrement the dependencies through the MODULE_FreeLibrary call. */
                pwm->refCount++;

                SetLastError( err );  /* restore last error */
                return pwm;
        }


        WARN("Failed to load module '%s'; error=0x%08lx, \n", libname, GetLastError());
        return NULL;
}

/***********************************************************************
 *           MODULE_FreeLibrary
 *
 * NOTE: Assumes that the process critical section is held!
 */
static WIN_BOOL MODULE_FreeLibrary( WINE_MODREF *wm )
{
    TRACE("(%s) - START\n", wm->modname );

    /* Recursively decrement reference counts */
    //MODULE_DecRefCount( wm );

    /* Call process detach notifications */
    MODULE_DllProcessDetach( wm, FALSE, NULL );

    PE_UnloadLibrary(wm);

    TRACE("END\n");

    return TRUE;
}

/***********************************************************************
 *           LoadLibraryExA   (KERNEL32)
 */
HMODULE WINAPI LoadLibraryExA(LPCSTR libname, HANDLE hfile, DWORD flags)
{
        WINE_MODREF *wm = 0;
        char* listpath[] = { "", "", "/usr/lib/win32", "/usr/local/lib/win32", 0 };
        extern char* def_path;
        char path[512];
        char checked[2000];
        int i = -1;

        checked[0] = 0;
        if(!libname)
        {
                SetLastError(ERROR_INVALID_PARAMETER);
                return 0;
        }

        wm=MODULE_FindModule(libname);
        if(wm) return wm->module;

//      if(fs_installed==0)
//          install_fs();

        while (wm == 0 && listpath[++i])
        {
            if (i < 2)
            {
                if (i == 0)
                    /* check just original file name */
                    strncpy(path, libname, 511);
                else
                    /* check default user path */
                    strncpy(path, def_path, 300);
            }
            else if (strcmp(def_path, listpath[i]))
                /* path from the list */
                strncpy(path, listpath[i], 300);
            else
                continue;

            if (i > 0)
            {
                strcat(path, "/");
                strncat(path, libname, 100);
            }
            path[511] = 0;
            wm = MODULE_LoadLibraryExA( path, hfile, flags );

            if (!wm)
            {
                if (checked[0])
                    strcat(checked, ", ");
                strcat(checked, path);
                checked[1500] = 0;

            }
        }
        if ( wm )
        {
                if ( !MODULE_DllProcessAttach( wm, NULL ) )
                {
                        WARN_(module)("Attach failed for module '%s', \n", libname);
                        MODULE_FreeLibrary(wm);
                        SetLastError(ERROR_DLL_INIT_FAILED);
                        MODULE_RemoveFromList(wm);
                        wm = NULL;
                }
        }

        if (!wm)
            printf("Win32 LoadLibrary failed to load: %s\n", checked);

        if (strstr(libname,"vp31vfw.dll") && wm)
        {
            int i;

          // sse hack moved from patch dll into runtime patching
          if (PE_FindExportedFunction(wm, "DriverProc", TRUE)==(void*)0x10001000) {
            fprintf(stderr, "VP3 DLL found\n");
            for (i=0;i<18;i++) ((char*)0x10004bd6)[i]=0x90;
          }
        }

        // remove a few divs in the VP codecs that make trouble
        if (strstr(libname,"vp5vfw.dll") && wm)
        {
          int i;
          if (PE_FindExportedFunction(wm, "DriverProc", TRUE)==(void*)0x10003930) {
            for (i=0;i<3;i++) ((char*)0x10004e86)[i]=0x90;
            for (i=0;i<3;i++) ((char*)0x10005a23)[i]=0x90;
            for (i=0;i<3;i++) ((char*)0x10005bff)[i]=0x90;
          } else {
            fprintf(stderr, "Unsupported VP5 version\n");
            return 0;
          }
        }

        if (strstr(libname,"vp6vfw.dll") && wm)
        {
          int i;
          if (PE_FindExportedFunction(wm, "DriverProc", TRUE)==(void*)0x10003ef0) {
            // looks like VP 6.1.0.2
            for (i=0;i<6;i++) ((char*)0x10007268)[i]=0x90;
            for (i=0;i<6;i++) ((char*)0x10007e83)[i]=0x90;
            for (i=0;i<6;i++) ((char*)0x1000806a)[i]=0x90;
          } else if (PE_FindExportedFunction(wm, "DriverProc", TRUE)==(void*)0x10004120) {
            // looks like VP 6.2.0.10
            for (i=0;i<6;i++) ((char*)0x10007688)[i]=0x90;
            for (i=0;i<6;i++) ((char*)0x100082c3)[i]=0x90;
            for (i=0;i<6;i++) ((char*)0x100084aa)[i]=0x90;
          } else if (PE_FindExportedFunction(wm, "DriverProc", TRUE)==(void*)0x10003e70) {
            // looks like VP 6.0.7.3
            for (i=0;i<6;i++) ((char*)0x10007559)[i]=0x90;
            for (i=0;i<6;i++) ((char*)0x100081c3)[i]=0x90;
            for (i=0;i<6;i++) ((char*)0x1000839e)[i]=0x90;
          } else {
            fprintf(stderr, "Unsupported VP6 version\n");
            return 0;
          }
        }

        // Windows Media Video 9 Advanced
        if (strstr(libname,"wmvadvd.dll") && wm)
        {
          // The codec calls IsRectEmpty with coords 0,0,0,0 => result is 0
          // but it really wants the rectangle to be not empty
          if (PE_FindExportedFunction(wm, "CreateInstance", TRUE)==(void*)0x08c4b812) {
            // Dll version is 10.0.0.3645
            *((char*)0x08c48b0f)=0xeb; // Jump always, ignoring IsRectEmpty result
          } else {
            fprintf(stderr, "Unsupported WMVA version\n");
            return 0;
          }
        }

        if (strstr(libname,"QuickTime.qts") && wm)
        {
            void** ptr;
            void *dispatch_addr;
            int i;

//          dispatch_addr = GetProcAddress(wm->module, "theQuickTimeDispatcher", TRUE);
            dispatch_addr = PE_FindExportedFunction(wm, "theQuickTimeDispatcher", TRUE);
            if (dispatch_addr == (void *)0x62924c30)
            {
                fprintf(stderr, "QuickTime5 DLLs found\n");
                ptr = (void **)0x62b75ca4; // dispatch_ptr
                for (i=0;i<5;i++)  ((char*)0x6299e842)[i]=0x90; // make_new_region ?
                for (i=0;i<28;i++) ((char*)0x6299e86d)[i]=0x90; // call__call_CreateCompatibleDC ?
                for (i=0;i<5;i++)  ((char*)0x6299e898)[i]=0x90; // jmp_to_call_loadbitmap ?
                for (i=0;i<9;i++)  ((char*)0x6299e8ac)[i]=0x90; // call__calls_OLE_shit ?
                for (i=0;i<106;i++) ((char*)0x62a61b10)[i]=0x90; // disable threads
#if 0
                /* CreateThread callers */
                for (i=0;i<5;i++) ((char*)0x629487c5)[i]=0x90;
                for (i=0;i<5;i++) ((char*)0x6294b275)[i]=0x90;
                for (i=0;i<5;i++) ((char*)0x629a24b1)[i]=0x90;
                for (i=0;i<5;i++) ((char*)0x629afc5a)[i]=0x90;
                for (i=0;i<5;i++) ((char*)0x62af799c)[i]=0x90;
                for (i=0;i<5;i++) ((char*)0x62af7efe)[i]=0x90;
                for (i=0;i<5;i++) ((char*)0x62afa33e)[i]=0x90;
#endif

#if 0
                /* TerminateQTML fix */
                for (i=0;i<47;i++) ((char*)0x62afa3b8)[i]=0x90; // terminate thread
                for (i=0;i<47;i++) ((char*)0x62af7f78)[i]=0x90; // terminate thread
                for (i=0;i<77;i++) ((char*)0x629a13d5)[i]=0x90;
                ((char *)0x6288e0ae)[0] = 0xc3; // font/dc remover
                for (i=0;i<24;i++) ((char*)0x6287a1ad)[i]=0x90; // destroy window
#endif
            } else if (dispatch_addr == (void *)0x6693b330)
            {
                fprintf(stderr, "QuickTime6 DLLs found\n");
                ptr = (void **)0x66bb9524; // dispatcher_ptr
                for (i=0;i<5;i++)  ((char *)0x66a730cc)[i]=0x90; // make_new_region
                for (i=0;i<28;i++) ((char *)0x66a730f7)[i]=0x90; // call__call_CreateCompatibleDC
                for (i=0;i<5;i++)  ((char *)0x66a73122)[i]=0x90; // jmp_to_call_loadbitmap
                for (i=0;i<9;i++)  ((char *)0x66a73131)[i]=0x90; // call__calls_OLE_shit
                for (i=0;i<96;i++) ((char *)0x66aac852)[i]=0x90; // disable threads
            } else if (dispatch_addr == (void *)0x6693c3e0)
            {
                fprintf(stderr, "QuickTime6.3 DLLs found\n");
                ptr = (void **)0x66bca01c; // dispatcher_ptr
                for (i=0;i<5;i++)  ((char *)0x66a68f6c)[i]=0x90; // make_new_region
                for (i=0;i<28;i++) ((char *)0x66a68f97)[i]=0x90; // call__call_CreateCompatibleDC
                for (i=0;i<5;i++)  ((char *)0x66a68fc2)[i]=0x90; // jmp_to_call_loadbitmap
                for (i=0;i<9;i++)  ((char *)0x66a68fd1)[i]=0x90; // call__calls_OLE_shit
                for (i=0;i<96;i++) ((char *)0x66ab4722)[i]=0x90; // disable threads
            } else
            {
                fprintf(stderr, "Unsupported QuickTime version (%p)\n",
                    dispatch_addr);
                return 0;
            }

            fprintf(stderr,"QuickTime.qts patched!!! old entry=%p\n",ptr[0]);

#ifdef EMU_QTX_API
            report_entry = report_func;
            report_ret   = report_func_ret;
            wrapper_target=ptr[0];
            ptr[0]=wrapper;
#endif
        }

        return wm ? wm->module : 0;
}


/***********************************************************************
 *           LoadLibraryA         (KERNEL32)
 */
HMODULE WINAPI LoadLibraryA(LPCSTR libname) {
        return LoadLibraryExA(libname,0,0);
}

/***********************************************************************
 *           FreeLibrary
 */
WIN_BOOL WINAPI FreeLibrary(HINSTANCE hLibModule)
{
    WIN_BOOL retv = FALSE;
    WINE_MODREF *wm;

    wm=MODULE32_LookupHMODULE(hLibModule);

    if ( !wm || !hLibModule )
    {
        SetLastError( ERROR_INVALID_HANDLE );
        return 0;
    }
    else
        retv = MODULE_FreeLibrary( wm );

    MODULE_RemoveFromList(wm);

    /* garbage... */
    if (local_wm == NULL) my_garbagecollection();

    return retv;
}

/***********************************************************************
 *           MODULE_DecRefCount
 *
 * NOTE: Assumes that the process critical section is held!
 */
static void MODULE_DecRefCount( WINE_MODREF *wm )
{
    int i;

    if ( wm->flags & WINE_MODREF_MARKER )
        return;

    if ( wm->refCount <= 0 )
        return;

    --wm->refCount;
    TRACE("(%s) refCount: %d\n", wm->modname, wm->refCount );

    if ( wm->refCount == 0 )
    {
        wm->flags |= WINE_MODREF_MARKER;

        for ( i = 0; i < wm->nDeps; i++ )
            if ( wm->deps[i] )
                MODULE_DecRefCount( wm->deps[i] );

        wm->flags &= ~WINE_MODREF_MARKER;
    }
}

/***********************************************************************
 *           GetProcAddress             (KERNEL32.257)
 */
FARPROC WINAPI GetProcAddress( HMODULE hModule, LPCSTR function )
{
    return MODULE_GetProcAddress( hModule, function, TRUE );
}

#ifdef DEBUG_QTX_API

/* 
http://lists.apple.com/archives/quicktime-api/2003/Jan/msg00278.html
*/

struct ComponentParameters {
    unsigned char                   flags;                      /* call modifiers: sync/async, deferred, immed, etc */
    unsigned char                   paramSize;                  /* size in bytes of actual parameters passed to this call */
    short                           what;                       /* routine selector, negative for Component management calls */
    long                            params[1];                  /* actual parameters for the indicated routine */
};
typedef struct ComponentParameters      ComponentParameters;

static char* component_func(int what){
if (what < 0) // Range 0: Standard Component Calls
switch(what){
case -1: return "kComponentOpenSelect";
case -2: return "kComponentCloseSelect";
case -3: return "kComponentCanDoSelect";
case -4: return "kComponentVersionSelect";
case -5: return "kComponentRegisterSelect";
case -6: return "kComponentTargetSelect";
case -7: return "kComponentUnregisterSelect";
}

if (what >= 0 && what <= 0xff) // Range 1: Generic codecs
switch(what & 0xff){
case 0: return "kImageCodecGetCodecInfoSelect";
case 1: return "kImageCodecGetCompressionTimeSelect";
case 2: return "kImageCodecGetMaxCompressionSizeSelect";
case 3: return "kImageCodecPreCompressSelect";
case 4: return "kImageCodecBandCompressSelect";
case 5: return "kImageCodecPreDecompressSelect";
case 6: return "kImageCodecBandDecompressSelect";
case 7: return "kImageCodecBusySelect";
// finish this list from the above URL
case 0x10: return "kImageCodecIsImageDescriptionEquivalentSelect";
case 0x12: return "kImageCodecDisposeMemorySelect";
case 0x14: return "kImageCodecNewImageBufferMemorySelect";
case 0x28: return "kImageCodecRequestGammaLevelSelect";
}

//if (what >= 0x100 && what <= 0x1ff) // Range 2: Specific to QT Photo JPEG codecs

if (what >= 0x200 && what <= 0x2ff) // Range 3: Base Decompressor
switch(what & 0xff){
case 0: return "Preflight";
case 1: return "Initialize";
case 2: return "BeginBand";
case 3: return "DrawBand";
case 4: return "EndBand";
case 5: return "QueueStarting";
case 6: return "QueueStopping";
}

return "???";
}

static int c_level=0;

static int dump_component(char* name,int type,void* _orig, ComponentParameters *params,void** glob){
    int ( *orig)(ComponentParameters *params, void** glob) = _orig;
    int ret,i;

    fprintf(stderr,"%*sComponentCall: %s  flags=0x%X  size=%d  what=0x%X %s\n",3*c_level,"",name,params->flags, params->paramSize, params->what, component_func(params->what));

    for(i=0;i<params->paramSize/4;i++)
        fprintf(stderr,"%*s param[%d] = 0x%X\n",3*c_level,"",i,params->params[i]);

    ++c_level;
    ret=orig(params,glob);
    --c_level;
    
    if(ret>=0x1000)
        fprintf(stderr,"%*s return=0x%X\n",3*c_level,"",ret);
    else
        fprintf(stderr,"%*s return=%d\n",3*c_level,"",ret);
    return ret;
}

#define DECL_COMPONENT(sname,name,type) \
    static void* real_ ## sname = NULL; \
    static int fake_ ## sname(ComponentParameters *params,void** glob){ \
        return dump_component(name,type,real_ ## sname, params, glob); \
    }

#include "qt_comp.h"

#undef DECL_COMPONENT

#include "qt_fv.h"

#endif

#ifdef EMU_QTX_API

static uint32_t ret_array[4096];
static int ret_i=0;

static int report_func(void *stack_base, int stack_size, reg386_t *reg, uint32_t *flags)
{
#ifdef DEBUG_QTX_API
  int i;
  int* dptr;
  void* pwrapper=NULL;
  void* pptr=NULL;
  char* pname=NULL;
  int plen=-1;
  // find the code:
  
  dptr=0x62b67ae0;dptr+=2*((reg->eax>>16)&255);
//  printf("FUNC: flag=%d ptr=%p\n",dptr[0],dptr[1]);
  if(dptr[0]&255){
      dptr=dptr[1];dptr+=4*(reg->eax&65535);
//      printf("FUNC: ptr2=%p  eax=%p  edx=%p\n",dptr[1],dptr[0],dptr[2]);
      pwrapper=dptr[1]; pptr=dptr[0]; plen=dptr[2]; 
  } else {
      pwrapper=0x62924910;
      switch(dptr[1]){
      case 0x629248d0:
          dptr=0x62b672c0;dptr+=2*(reg->eax&65535);
//          printf("FUNC: ptr2=%p  eax=%p  edx=%p\n",0x62924910,dptr[0],dptr[1]);
          pptr=dptr[0]; plen=dptr[1]; 
          break;
      case 0x62924e40:
          dptr=0x62b67c70;dptr+=2*(reg->eax&65535);
//          printf("FUNC: ptr2=%p  eax=%p  edx=%p\n",0x62924910,dptr[0],dptr[1]);
          pptr=dptr[0]; plen=dptr[1]; 
          break;
      case 0x62924e60:
          dptr=0x62b68108;if(reg->eax&0x8000) dptr+=2*(reg->eax|0xffff0000); else dptr+=2*(reg->eax&65535);
//          printf("FUNC: ptr2=%p  eax=%p  edx=%p\n",0x62924910,dptr[0],dptr[1]);
          pptr=dptr[0]; plen=dptr[1]; 
          break;
      case 0x62924e80:
          dptr=0x62b68108;if(reg->eax&0x8000) dptr+=2*(reg->eax|0xffff0000); else dptr+=2*(reg->eax&65535);
//          printf("FUNC: ptr2=%p  eax=%p  edx=%p\n",0x62924910,dptr[0],dptr[1]);
          pptr=dptr[0]; plen=dptr[1]; 
          break;
      default:
          printf("FUNC: unknown ptr & psize!\n");
          pwrapper=dptr[1];
      }
  }

  for(i=0;qt_fv_list[i].name;i++){
          if(qt_fv_list[i].id==reg->eax){
              pname=qt_fv_list[i].name;
              break;
          }
  }

  printf("FUNC[%X/%s]: wrapper=%p  func=%p  len=%d\n",reg->eax,
      pname?pname:"???",pwrapper,pptr,plen);

  printf("FUNC: caller=%p  ebx=%p\n",((uint32_t *)stack_base)[0],reg->ebx);

  if(pname)
      printf("%*sENTER(%d): %s(",ret_i*2,"",ret_i,pname);
  else
      printf("%*sENTER(%d): %X(",ret_i*2,"",ret_i,reg->eax);
  for (i=0;i<plen/4;i++){
    unsigned int val=((uint32_t *)stack_base)[1+i];
    unsigned char* fcc=&val;
    printf("%s0x%X", i?", ":"",val);
    if(fcc[0]>=0x20 && fcc[0]<128 &&
       fcc[1]>=0x20 && fcc[1]<128 &&
       fcc[2]>=0x20 && fcc[2]<128 &&
       fcc[3]>=0x20 && fcc[3]<128) printf("='%c%c%c%c'",fcc[3],fcc[2],fcc[1],fcc[0]);
    else if(val>=8 && val<65536) printf("=%d",val);
  }
  printf(")\n");
  fflush(stdout);

#endif
  
#if 1
  // emulate some functions:
  switch(reg->eax){
  // memory management:
  case 0x150011: //NewPtrClear
  case 0x150012: //NewPtrSysClear
      reg->eax=(uint32_t)malloc(((uint32_t *)stack_base)[1]);
      memset((void *)reg->eax,0,((uint32_t *)stack_base)[1]);
#ifdef DEBUG_QTX_API
      printf("%*sLEAVE(%d): EMULATED! 0x%X\n",ret_i*2,"",ret_i, reg->eax);
#endif
      return 1;
  case 0x15000F: //NewPtr
  case 0x150010: //NewPtrSys
      reg->eax=(uint32_t)malloc(((uint32_t *)stack_base)[1]);
#ifdef DEBUG_QTX_API
      printf("%*sLEAVE(%d): EMULATED! 0x%X\n",ret_i*2,"",ret_i, reg->eax);
#endif
      return 1;
  case 0x15002f: //DisposePtr
      if(((uint32_t *)stack_base)[1]>=0x60000000)
          printf("WARNING! Invalid Ptr handle!\n");
      else
          free((void *)((uint32_t *)stack_base)[1]);
      reg->eax=0;
#ifdef DEBUG_QTX_API
      printf("%*sLEAVE(%d): EMULATED! 0x%X\n",ret_i*2,"",ret_i, reg->eax);
#endif
      return 1;
  // mutexes:
  case 0x1d0033: //QTMLCreateMutex
      reg->eax=0xdeadbabe;
#ifdef DEBUG_QTX_API
      printf("%*sLEAVE(%d): EMULATED! 0x%X\n",ret_i*2,"",ret_i, reg->eax);
#endif
      return 1;
  case 0x1d0034: //QTMLDestroyMutex
  case 0x1d0035: //QTMLGrabMutex
  case 0x1d0036: //QTMLReturnMutex
  case 0x1d003d: //QTMLTryGrabMutex
      reg->eax=0;
#ifdef DEBUG_QTX_API
      printf("%*sLEAVE(%d): EMULATED! 0x%X\n",ret_i*2,"",ret_i, reg->eax);
#endif
      return 1;
  }
#endif

#if 0
  switch(reg->eax){
//  case 0x00010000:
//      printf("FUNC: ImageCodecInitialize/ImageCodecGetCodecInfo(ci=%p,&icap=%p)\n",((uint32_t *)stack_base)[1],((uint32_t *)stack_base)[4]);
//      break;
  case 0x00010003:
      printf("FUNC: CountComponents(&desc=%p)\n",((uint32_t *)stack_base)[1]);
      break;
  case 0x00010004:
      printf("FUNC: FindNextComponent(prev=%p,&desc=%p)\n",((uint32_t *)stack_base)[1],((uint32_t *)stack_base)[2]);
      break;
  case 0x00010007:
      printf("FUNC: OpenComponent(prev=%p)\n",((uint32_t *)stack_base)[1]);
      break;
  case 0x0003008b:
      printf("FUNC: QTNewGWorldFromPtr(&pts=%p,fourcc=%.4s,&rect=%p,x1=%p,x2=%p,x3=%p,plane=%p,stride=%d)\n",
          ((uint32_t *)stack_base)[1],
          &(((uint32_t *)stack_base)[2]),
          ((uint32_t *)stack_base)[3],
          ((uint32_t *)stack_base)[4],
          ((uint32_t *)stack_base)[5],
          ((uint32_t *)stack_base)[6],
          ((uint32_t *)stack_base)[7],
          ((uint32_t *)stack_base)[8]);
      break;
  case 0x001c0018:
      printf("FUNC: GetGWorldPixMap(gworld=%p)\n",((uint32_t *)stack_base)[1]);
      break;
  case 0x00110001:
      printf("FUNC: Gestalt(fourcc=%.4s, &ret=%p)\n",&(((uint32_t *)stack_base)[1]),((uint32_t *)stack_base)[2]);
      break;
  default: {
      int i;
      for(i=0;qt_fv_list[i].name;i++){
          if(qt_fv_list[i].id==reg->eax){
              printf("FUNC: %s\n",qt_fv_list[i].name);
              break;
          }
      }
      }
  }

  // print stack/reg information 
  printf("ENTER(%d) stack = %d bytes @ %p\n"
         "eax = 0x%08x edx = 0x%08x ebx = 0x%08x ecx = 0x%08x\n"
         "esp = 0x%08x ebp = 0x%08x esi = 0x%08x edi = 0x%08x\n"
         "flags = 0x%08x\n", ret_i,
         stack_size, stack_base,
         reg->eax, reg->edx, reg->ebx, reg->ecx,
         reg->esp, reg->ebp, reg->esi, reg->edi,
         *flags);
#endif

  // save ret addr:
  ret_array[ret_i]=((uint32_t *)stack_base)[0];
  ++ret_i;

#if 0
  // print first 7 longs in the stack (return address, arg[1], arg[2] ... ) 
  printf("stack[] = { ");
  for (i=0;i<7;i++) {
    printf("%08x ", ((uint32_t *)stack_base)[i]);
  }
  printf("}\n\n");
#endif
  
//  // mess with function parameters 
//  ((uint32_t *)stack_base)[1] = 0x66554433;

//  // mess with return address...
//  reg->eax = 0x11223344;
    return 0;
}

static int report_func_ret(void *stack_base, int stack_size, reg386_t *reg, uint32_t *flags)
{
  int i;
  short err;

  // restore ret addr:
  --ret_i;
  ((uint32_t *)stack_base)[0]=ret_array[ret_i];

#ifdef DEBUG_QTX_API

#if 1
  printf("%*sLEAVE(%d): 0x%X",ret_i*2,"",ret_i, reg->eax);
  err=reg->eax;
  if(err && (reg->eax>>16)==0) printf(" = %d",err);
  printf("\n");
  fflush(stdout);
#else
  // print stack/reg information 
  printf("LEAVE(%d) stack = %d bytes @ %p\n"
         "eax = 0x%08x edx = 0x%08x ebx = 0x%08x ecx = 0x%08x\n"
         "esp = 0x%08x ebp = 0x%08x esi = 0x%08x edi = 0x%08x\n"
         "flags = 0x%08x\n", ret_i,
         stack_size, stack_base,
         reg->eax, reg->edx, reg->ebx, reg->ecx,
         reg->esp, reg->ebp, reg->esi, reg->edi,
         *flags);
#endif

#if 0
  // print first 7 longs in the stack (return address, arg[1], arg[2] ... ) 
  printf("stack[] = { ");
  for (i=0;i<7;i++) {
    printf("%08x ", ((uint32_t *)stack_base)[i]);
  }
  printf("}\n\n");
#endif

#endif
  
//  // mess with function parameters 
//  ((uint32_t *)stack_base)[1] = 0x66554433;

//  // mess with return address...
//  reg->eax = 0x11223344;
    return 0;
}

#endif

/***********************************************************************
 *           MODULE_GetProcAddress              (internal)
 */
FARPROC MODULE_GetProcAddress(
        HMODULE hModule,        /* [in] current module handle */
        LPCSTR function,        /* [in] function to be looked up */
        WIN_BOOL snoop )
{
    WINE_MODREF *wm = MODULE32_LookupHMODULE( hModule );
//    WINE_MODREF *wm=local_wm;
    FARPROC     retproc;

#ifdef DEBUG_QTX_API
    if (HIWORD(function))
        fprintf(stderr,"XXX GetProcAddress(%08lx,%s)\n",(DWORD)hModule,function);
    else
        fprintf(stderr,"XXX GetProcAddress(%08lx,%p)\n",(DWORD)hModule,function);
#endif

//      TRACE_(win32)("(%08lx,%s)\n",(DWORD)hModule,function);
//    else
//      TRACE_(win32)("(%08lx,%p)\n",(DWORD)hModule,function);

    if (!wm) {
        SetLastError(ERROR_INVALID_HANDLE);
        return (FARPROC)0;
    }
    switch (wm->type)
    {
    case MODULE32_PE:
        retproc = PE_FindExportedFunction( wm, function, snoop );
        if (!retproc) SetLastError(ERROR_PROC_NOT_FOUND);
        break;
#ifdef HAVE_LIBDL
    case MODULE32_ELF:
        retproc = (FARPROC) dlsym( (void*) wm->module, function);
        if (!retproc) SetLastError(ERROR_PROC_NOT_FOUND);
        return retproc;
#endif
    default:
        ERR("wine_modref type %d not handled.\n",wm->type);
        SetLastError(ERROR_INVALID_HANDLE);
        return (FARPROC)0;
    }

#ifdef EMU_QTX_API
    if (HIWORD(function) && retproc){

#ifdef DEBUG_QTX_API
#define DECL_COMPONENT(sname,name,type) \
    if(!strcmp(function,name)){ \
        fprintf(stderr,name "dispatcher catched -> %p\n",retproc); \
        real_ ## sname = retproc; retproc = fake_ ## sname; \
    }
#include "qt_comp.h"
#undef DECL_COMPONENT
#endif

    if(!strcmp(function,"theQuickTimeDispatcher")
//      || !strcmp(function,"_CallComponentFunctionWithStorage")
//      || !strcmp(function,"_CallComponent")
      ){
        fprintf(stderr,"theQuickTimeDispatcher catched -> %p\n",retproc);
      report_entry = report_func;
      report_ret   = report_func_ret;
      wrapper_target=(void(*)(void))retproc;
      retproc=(FARPROC)wrapper;
    }

    }
#endif

    return retproc;
}

static int acounter = 0;
void CodecAlloc(void)
{
    acounter++;
    //printf("**************CODEC ALLOC %d\n", acounter);
}

void CodecRelease(void)
{
    acounter--;
    //printf("**************CODEC RELEASE %d\n", acounter);
    if (acounter == 0)
    {
        for (;;)
        {
            modref_list* list = local_wm;
            if (!local_wm)
                break;
            //printf("CODECRELEASE %p\n", list);
            MODULE_FreeLibrary(list->wm);
            MODULE_RemoveFromList(list->wm);
            if (local_wm == NULL)
                my_garbagecollection();
        }
    }
}

---