Remove win32/qt/xanim/real binary codecs loading

Remove the win32 loader - the win32 emulation layer, as well as the
code for using DirectShow/DMO/VFW codecs. Remove loading of xanim,
QuickTime, and RealMedia codecs.

The win32 emulation layer is based on a very old version of wine.
Apparently, wine code was copied and hacked until it was somehow able
to load a limited collection of binary codecs. It poked around in the
code segment of some known binary codecs to disable unsupported win32
API calls to make them work. Example from module.c:

    for (i=0;i<5;i++)  RVA(0x19e842)[i]=0x90; // make_new_region ?
    for (i=0;i<28;i++) RVA(0x19e86d)[i]=0x90; // call__call_CreateCompatibleDC ?
    for (i=0;i<5;i++)  RVA(0x19e898)[i]=0x90; // jmp_to_call_loadbitmap ?
    for (i=0;i<9;i++)  RVA(0x19e8ac)[i]=0x90; // call__calls_OLE_shit ?
    for (i=0;i<106;i++) RVA(0x261b10)[i]=0x90; // disable threads

Just to show how utterly insane this code is. You wouldn't want even
your worst enemy to have to maintain this. In fact, it seems nobody
made major changes to this code ever since it was committed.

Most formats can be decoded by libavcodecs these days, and the loader
couldn't be used on 64 bit platforms anyway. The same is (probably)
true for the other binary codecs.

General note about how support for win32 codecs could be added back:

It's not possible to replace the win32 loader code by using wine as
library, because modern wine can not be linked with native Linux
programs for certain reasons. It would be possible to to move DirectShow
video decoding into a separate process linked with wine, like the
CoreAVC-for-Linux patches do. There is also the mplayer-ww fork, which
uses the dshownative library to use DirectShow codecs on Windows.

1 files changed, 0 insertions, 593 deletions

diff --git a/loader/ext.c b/loader/ext.c
deleted file mode 100644
index feab985167..0000000000
--- a/loader/ext.c
+++ /dev/null
@@ -1,593 +0,0 @@
-/********************************************************
- *
- *
- *      Stub functions for Wine module
- *
- *
- ********************************************************/
-
-/*
- * Modified for use with MPlayer, detailed changelog at
- * http://svn.mplayerhq.hu/mplayer/trunk/
- */
-
-#include "config.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#ifdef HAVE_SYS_MMAN_H
-#include <sys/mman.h>
-#else
-#include "osdep/mmap.h"
-#endif
-#include <errno.h>
-#include <fcntl.h>
-#include <string.h>
-#include <stdarg.h>
-#include <ctype.h>
-
-#include "osdep/mmap_anon.h"
-#include "wine/windef.h"
-#include "wine/winbase.h"
-#include "wine/debugtools.h"
-#include "wine/heap.h"
-#include "ext.h"
-
-#if 0
-//REMOVE SIMPLIFY
-static void* mymalloc(unsigned int size)
-{
-    printf("malloc %d\n", size);
-    return malloc(size);
-}
-
-#undef malloc
-#define malloc mymalloc
-#endif
-
-int dbg_header_err( const char *dbg_channel, const char *func )
-{
-    return 0;
-}
-int dbg_header_warn( const char *dbg_channel, const char *func )
-{
-    return 0;
-}
-int dbg_header_fixme( const char *dbg_channel, const char *func )
-{
-    return 0;
-}
-int dbg_header_trace( const char *dbg_channel, const char *func )
-{
-    return 0;
-}
-int dbg_vprintf( const char *format, va_list args )
-{
-    return 0;
-}
-int __vprintf( const char *format, ... )
-{
-#ifdef DETAILED_OUT
-    va_list va;
-    va_start(va, format);
-    vprintf(format, va);
-    va_end(va);
-#endif
-    return 0;
-}
-
-HANDLE WINAPI GetProcessHeap(void)
-{
-    return 1;
-}
-
-LPVOID WINAPI HeapAlloc(HANDLE heap, DWORD flags, DWORD size)
-{
-    //static int i = 5;
-    void* m = (flags & 0x8) ? calloc(size, 1) : malloc(size);
-    //printf("HeapAlloc %p  %d  (%d)\n", m, size, flags);
-    //if (--i == 0)
-    //    abort();
-    return m;
-}
-
-WIN_BOOL WINAPI HeapFree(HANDLE heap, DWORD flags, LPVOID mem)
-{
-    free(mem);
-    //printf("HeapFree  %p\n", mem);
-    //if (!mem)
-    //    abort();
-    return 1;
-}
-
-static int last_error;
-
-DWORD WINAPI GetLastError(void)
-{
-    return last_error;
-}
-
-VOID WINAPI SetLastError(DWORD error)
-{
-    last_error=error;
-}
-
-WIN_BOOL WINAPI ReadFile(HANDLE handle, LPVOID mem, DWORD size, LPDWORD result, LPOVERLAPPED flags)
-{
-    *result=read(handle, mem, size);
-    return *result;
-}
-INT WINAPI lstrcmpiA(LPCSTR c1, LPCSTR c2)
-{
-    return strcasecmp(c1,c2);
-}
-LPSTR WINAPI lstrcpynA(LPSTR dest, LPCSTR src, INT num)
-{
-    return strncpy(dest,src,num);
-}
-INT WINAPI lstrlenA(LPCSTR s)
-{
-    return strlen(s);
-}
-INT WINAPI lstrlenW(LPCWSTR s)
-{
-    int l;
-    if(!s)
-	return 0;
-    l=0;
-    while(s[l])
-	l++;
-     return l;
-}
-LPSTR WINAPI lstrcpynWtoA(LPSTR dest, LPCWSTR src, INT count)
-{
-    LPSTR result = dest;
-    int moved=0;
-    if((dest==0) || (src==0))
-	return 0;
-    while(moved<count)
-    {
-        *dest=*src;
-	moved++;
-	if(*src==0)
-	    break;
-	src++;
-	dest++;
-    }
-    return result;
-}
-/* i stands here for ignore case! */
-int wcsnicmp(const unsigned short* s1, const unsigned short* s2, int n)
-{
-    /*
-    if(s1==0)
-	return;
-    if(s2==0)
-        return;
-    */
-    while(n>0)
-    {
-	if (((*s1 | *s2) & 0xff00) || toupper((char)*s1) != toupper((char)*s2))
-	{
-
-	    if(*s1<*s2)
-		return -1;
-	    else
-		if(*s1>*s2)
-		    return 1;
-		else
-		    if(*s1==0)
-			return 0;
-	}
-	s1++;
-	s2++;
-	n--;
-    }
-    return 0;
-}
-
-WIN_BOOL WINAPI IsBadReadPtr(LPCVOID data, UINT size)
-{
-    if(size==0)
-	return 0;
-    if(data==NULL)
-        return 1;
-    return 0;
-}
-LPSTR HEAP_strdupA(HANDLE heap, DWORD flags, LPCSTR string)
-{
-//    return strdup(string);
-    char* answ = malloc(strlen(string) + 1);
-    strcpy(answ, string);
-    return answ;
-}
-LPWSTR HEAP_strdupAtoW(HANDLE heap, DWORD flags, LPCSTR string)
-{
-    int size, i;
-    WCHAR* answer;
-    if(string==0)
-	return 0;
-    size=strlen(string);
-    answer = malloc(sizeof(WCHAR) * (size + 1));
-    for(i=0; i<=size; i++)
-	answer[i]=(short)string[i];
-    return answer;
-}
-LPSTR HEAP_strdupWtoA(HANDLE heap, DWORD flags, LPCWSTR string)
-{
-    int size, i;
-    char* answer;
-    if(string==0)
-	return 0;
-    size=0;
-    while(string[size])
-       size++;
-    answer = malloc(size + 2);
-    for(i=0; i<=size; i++)
-	answer[i]=(char)string[i];
-    return answer;
-}
-
-/***********************************************************************
- *           FILE_dommap
- */
-
-//#define MAP_PRIVATE
-//#define MAP_SHARED
-LPVOID FILE_dommap( int unix_handle, LPVOID start,
-                    DWORD size_high, DWORD size_low,
-                    DWORD offset_high, DWORD offset_low,
-                    int prot, int flags )
-{
-    int fd = -1;
-    int pos;
-    LPVOID ret;
-
-    if (size_high || offset_high)
-        printf("offsets larger than 4Gb not supported\n");
-
-    if (unix_handle == -1)
-    {
-        ret = mmap_anon( start, size_low, prot, flags, offset_low );
-    }
-    else
-    {
-        fd = unix_handle;
-        ret = mmap( start, size_low, prot, flags, fd, offset_low );
-    }
-
-    if (ret != (LPVOID)-1)
-    {
-//	    printf("address %08x\n", *(int*)ret);
-//	printf("%x\n", ret);
-	    return ret;
-    }
-
-//    printf("mmap %d\n", errno);
-
-    /* mmap() failed; if this is because the file offset is not    */
-    /* page-aligned (EINVAL), or because the underlying filesystem */
-    /* does not support mmap() (ENOEXEC), we do it by hand.        */
-
-    if (unix_handle == -1) return ret;
-    if ((errno != ENOEXEC) && (errno != EINVAL)) return ret;
-    if (prot & PROT_WRITE)
-    {
-        /* We cannot fake shared write mappings */
-#ifdef MAP_SHARED
-	if (flags & MAP_SHARED) return ret;
-#endif
-#ifdef MAP_PRIVATE
-	if (!(flags & MAP_PRIVATE)) return ret;
-#endif
-    }
-/*    printf( "FILE_mmap: mmap failed (%d), faking it\n", errno );*/
-    /* Reserve the memory with an anonymous mmap */
-    ret = FILE_dommap( -1, start, size_high, size_low, 0, 0,
-                       PROT_READ | PROT_WRITE, flags );
-    if (ret == (LPVOID)-1)
-//    {
-//	perror(
-	 return ret;
-    /* Now read in the file */
-    if ((pos = lseek( fd, offset_low, SEEK_SET )) == -1)
-    {
-        FILE_munmap( ret, size_high, size_low );
-//	printf("lseek\n");
-        return (LPVOID)-1;
-    }
-    read( fd, ret, size_low );
-    lseek( fd, pos, SEEK_SET );  /* Restore the file pointer */
-    mprotect( ret, size_low, prot );  /* Set the right protection */
-//    printf("address %08x\n", *(int*)ret);
-    return ret;
-}
-
-
-/***********************************************************************
- *           FILE_munmap
- */
-int FILE_munmap( LPVOID start, DWORD size_high, DWORD size_low )
-{
-    if (size_high)
-      printf("offsets larger than 4Gb not supported\n");
-    return munmap( start, size_low );
-}
-
-struct file_mapping_s;
-typedef struct file_mapping_s
-{
-    int mapping_size;
-    char* name;
-    LPVOID handle;
-    struct file_mapping_s* next;
-    struct file_mapping_s* prev;
-}file_mapping;
-static file_mapping* fm=0;
-
-
-
-#define	PAGE_NOACCESS		0x01
-#define	PAGE_READONLY		0x02
-#define	PAGE_READWRITE		0x04
-#define	PAGE_WRITECOPY		0x08
-#define	PAGE_EXECUTE		0x10
-#define	PAGE_EXECUTE_READ	0x20
-#define	PAGE_EXECUTE_READWRITE	0x40
-#define	PAGE_EXECUTE_WRITECOPY	0x80
-#define	PAGE_GUARD		0x100
-#define	PAGE_NOCACHE		0x200
-
-HANDLE WINAPI CreateFileMappingA(HANDLE handle, LPSECURITY_ATTRIBUTES lpAttr,
-				 DWORD flProtect,
-				 DWORD dwMaxHigh, DWORD dwMaxLow,
-				 LPCSTR name)
-{
-    int hFile = (int)handle;
-    unsigned int len;
-    LPVOID answer;
-    int anon=0;
-    int mmap_access=0;
-    if(hFile<0)
-        anon=1;
-
-    if(!anon)
-    {
-        len=lseek(hFile, 0, SEEK_END);
-	lseek(hFile, 0, SEEK_SET);
-    }
-    else len=dwMaxLow;
-
-    if(flProtect & PAGE_READONLY)
-	mmap_access |=PROT_READ;
-    else
-	mmap_access |=PROT_READ|PROT_WRITE;
-
-    if(anon)
-        answer=mmap_anon(NULL, len, mmap_access, MAP_PRIVATE, 0);
-    else
-        answer=mmap(NULL, len, mmap_access, MAP_PRIVATE, hFile, 0);
-
-    if(answer!=(LPVOID)-1)
-    {
-	if(fm==0)
-	{
-	    fm = malloc(sizeof(file_mapping));
-	    fm->prev=NULL;
-	}
-	else
-	{
-	    fm->next = malloc(sizeof(file_mapping));
-	    fm->next->prev=fm;
-	    fm=fm->next;
-	}
-	fm->next=NULL;
-	fm->handle=answer;
-	if(name)
-	{
-	    fm->name = malloc(strlen(name)+1);
-	    strcpy(fm->name, name);
-	}
-	else
-	    fm->name=NULL;
-	fm->mapping_size=len;
-
-	return (HANDLE)answer;
-    }
-    return (HANDLE)0;
-}
-WIN_BOOL WINAPI UnmapViewOfFile(LPVOID handle)
-{
-    file_mapping* p;
-    int result;
-    if(fm==0)
-	return 0;
-    for(p=fm; p; p=p->next)
-    {
-	if(p->handle==handle)
-	{
-	    result=munmap((void*)handle, p->mapping_size);
-	    if(p->next)p->next->prev=p->prev;
-	    if(p->prev)p->prev->next=p->next;
-	    free(p->name);
-	    if(p==fm)
-		fm=p->prev;
-	    free(p);
-	    return result;
-	}
-    }
-    return 0;
-}
-//static int va_size=0;
-struct virt_alloc_s;
-typedef struct virt_alloc_s
-{
-    int mapping_size;
-    char* address;
-    struct virt_alloc_s* next;
-    struct virt_alloc_s* prev;
-    int state;
-}virt_alloc;
-static virt_alloc* vm=0;
-#define MEM_COMMIT              0x00001000
-#define MEM_RESERVE             0x00002000
-
-LPVOID WINAPI VirtualAlloc(LPVOID address, DWORD size, DWORD type,  DWORD protection)
-{
-    void* answer;
-    long pgsz;
-
-    //printf("VirtualAlloc(0x%08X, %u, 0x%08X, 0x%08X)\n", (unsigned)address, size, type, protection);
-
-    if ((type&(MEM_RESERVE|MEM_COMMIT)) == 0) return NULL;
-
-    if (type&MEM_RESERVE && (unsigned)address&0xffff) {
-	size += (unsigned)address&0xffff;
-	address = (void*)((unsigned)address&~0xffff);
-    }
-    pgsz = sysconf(_SC_PAGESIZE);
-    if (type&MEM_COMMIT && (unsigned)address%pgsz) {
-	size += (unsigned)address%pgsz;
-	address = (void*)((unsigned)address - (unsigned)address%pgsz);
-    }
-
-    if (type&MEM_RESERVE && size<0x10000) size = 0x10000;
-    if (size%pgsz) size += pgsz - size%pgsz;
-
-    if(address!=0)
-    {
-    //check whether we can allow to allocate this
-        virt_alloc* str=vm;
-        while(str)
-        {
-	    if((unsigned)address>=(unsigned)str->address+str->mapping_size)
-	    {
-		str=str->prev;
-		continue;
-	    }
-	    if((unsigned)address+size<=(unsigned)str->address)
-	    {
-		str=str->prev;
-		continue;
-	    }
-	    if(str->state==0)
-	    {
-		// FIXME
-		if(   ((unsigned)address >= (unsigned)str->address)
-		   && ((unsigned)address+size<=(unsigned)str->address+str->mapping_size)
-		   && (type & MEM_COMMIT))
-		{
-		    return address; //returning previously reserved memory
-		}
-		//printf(" VirtualAlloc(...) does not commit or not entirely within reserved, and\n");
-	    }
-	    /*printf(" VirtualAlloc(...) (0x%08X, %u) overlaps with (0x%08X, %u, state=%d)\n",
-	           (unsigned)address, size, (unsigned)str->address, str->mapping_size, str->state);*/
-	    return NULL;
-	}
-    }
-
-    answer=mmap_anon(address, size, PROT_READ | PROT_WRITE | PROT_EXEC,
-            MAP_PRIVATE, 0);
-//    answer=FILE_dommap(-1, address, 0, size, 0, 0,
-//	PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE);
-
-    if (answer != (void *)-1 && address && answer != address) {
-	/* It is dangerous to try mmap() with MAP_FIXED since it does not
-	   always detect conflicts or non-allocation and chaos ensues after
-	   a successful call but an overlapping or non-allocated region.  */
-	munmap(answer, size);
-	answer = (void *) -1;
-	errno = EINVAL;
-	//printf(" VirtualAlloc(...) cannot satisfy requested address but address=NULL would work.\n");
-    }
-    if(answer==(void*)-1)
-    {
-	/*printf(" VirtualAlloc(...) mmap(0x%08X, %u, ...) failed with errno=%d (\"%s\")\n",
-	       (unsigned)address, size, errno, strerror(errno));*/
-	return NULL;
-    }
-    else
-    {
-	virt_alloc *new_vm = malloc(sizeof(virt_alloc));
-	new_vm->mapping_size=size;
-	new_vm->address=(char*)answer;
-        new_vm->prev=vm;
-	if(type == MEM_RESERVE)
-	    new_vm->state=0;
-	else
-	    new_vm->state=1;
-	if(vm)
-	    vm->next=new_vm;
-    	vm=new_vm;
-	vm->next=0;
-	//if(va_size!=0)
-	//    printf("Multiple VirtualAlloc!\n");
-	//printf(" VirtualAlloc(...) provides (0x%08X, %u)\n", (unsigned)answer, size);
-        return answer;
-    }
-}
-
-WIN_BOOL WINAPI VirtualFree(LPVOID  address, SIZE_T dwSize, DWORD dwFreeType)//not sure
-{
-    virt_alloc* str=vm;
-
-    //printf("VirtualFree(0x%08X, %d, 0x%08X)\n", (unsigned)address, dwSize, dwFreeType);
-    while(str)
-    {
-	if(address!=str->address)
-	{
-	    str=str->prev;
-	    continue;
-	}
-	//printf(" VirtualFree(...) munmap(0x%08X, %d)\n", (unsigned)str->address, str->mapping_size);
-	munmap(str->address, str->mapping_size);
-	if(str->next)str->next->prev=str->prev;
-	if(str->prev)str->prev->next=str->next;
-	if(vm==str)vm=str->prev;
-	free(str);
-	return 0;
-    }
-    return -1;
-}
-
-INT WINAPI WideCharToMultiByte(UINT codepage, DWORD flags, LPCWSTR src,
-     INT srclen,LPSTR dest, INT destlen, LPCSTR defch, WIN_BOOL* used_defch)
-{
-    int i;
-    if(srclen==-1){srclen=0; while(src[srclen++]);}
-    if(destlen==0)
-	return srclen;
-    if(used_defch)
-	*used_defch=0;
-    for(i=0; i<min(srclen, destlen); i++)
-	*dest++=(char)*src++;
-    return min(srclen, destlen);
-}
-INT WINAPI MultiByteToWideChar(UINT codepage,DWORD flags, LPCSTR src, INT srclen,
-    LPWSTR dest, INT destlen)
-{
-    int i;
-    if(srclen==-1){srclen=0; while(src[srclen++]);}
-    if(destlen==0)
-	return srclen;
-    for(i=0; i<min(srclen, destlen); i++)
-	*dest++=(WCHAR)*src++;
-    return min(srclen, destlen);
-}
-HANDLE WINAPI OpenFileMappingA(DWORD access, WIN_BOOL prot, LPCSTR name)
-{
-    file_mapping* p;
-    if(fm==0)
-	return (HANDLE)0;
-    if(name==0)
-	return (HANDLE)0;
-    for(p=fm; p; p=p->prev)
-    {
-	if(p->name==0)
-	    continue;
-	if(strcmp(p->name, name)==0)
-	    return (HANDLE)p->handle;
-    }
-    return 0;
-}