mirror of
https://github.com/mpv-player/mpv
synced 2024-11-14 22:48:35 +01:00
d71e31d0f7
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@129 b3059339-0415-0410-9bf9-f77b7e298cf2
565 lines
12 KiB
C
565 lines
12 KiB
C
/********************************************************
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*
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*
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* Stub functions for Wine module
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*
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*
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********************************************************/
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#include <config.h>
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#ifdef HAVE_MALLOC_H
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#include <malloc.h>
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#else
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#include <stdlib.h>
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#endif
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#include <unistd.h>
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#include <sys/mman.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <string.h>
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#include <stdarg.h>
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#include <wine/windef.h>
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//#include <wine/winbase.h>
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int dbg_header_err( const char *dbg_channel, const char *func )
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{
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return 0;
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}
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int dbg_header_warn( const char *dbg_channel, const char *func )
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{
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return 0;
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}
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int dbg_header_fixme( const char *dbg_channel, const char *func )
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{
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return 0;
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}
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int dbg_header_trace( const char *dbg_channel, const char *func )
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{
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return 0;
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}
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int dbg_vprintf( const char *format, ... )
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{
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return 0;
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}
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int __vprintf( const char *format, ... )
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{
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#ifdef DETAILED_OUT
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va_list va;
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va_start(va, format);
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vprintf(format, va);
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va_end(va);
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#endif
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return 0;
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}
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int GetProcessHeap()
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{
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return 1;
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}
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void* HeapAlloc(int heap, int flags, int size)
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{
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if(flags & 0x8)
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return calloc(size, 1);
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else
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return malloc(size);
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}
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int HeapFree(int heap, int flags, void* mem)
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{
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if (mem) free(mem);
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return 1;
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}
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static int last_error;
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int GetLastError()
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{
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return last_error;
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}
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int SetLastError(int error)
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{
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return last_error=error;
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}
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int ReadFile(int handle, void* mem, unsigned long size, long* result, long flags)
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{
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*result=read(handle, mem, size);
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return *result;
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}
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int lstrcmpiA(const char* c1, const char* c2)
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{
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return strcasecmp(c1,c2);
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}
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int lstrcpynA(char* dest, const char* src, int num)
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{
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return strncmp(dest,src,num);
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}
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int lstrlenA(const char* s)
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{
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return strlen(s);
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}
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int lstrlenW(const short* s)
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{
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int l;
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if(!s)
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return 0;
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l=0;
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while(s[l])
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l++;
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return l;
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}
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int lstrcpynWtoA(char* dest, const char* src, int count)
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{
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int moved=0;
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if((dest==0) || (src==0))
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return 0;
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while(moved<count)
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{
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*dest=*src;
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moved++;
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if(*src==0)
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return moved;
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src++;
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dest++;
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}
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}
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int wcsnicmp(const unsigned short* s1, const unsigned short* s2, int n)
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{
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if(s1==0)
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return;
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if(s2==0)
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return;
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while(n>0)
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{
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if(*s1<*s2)
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return -1;
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else
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if(*s1>*s2)
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return 1;
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else
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if(*s1==0)
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return 0;
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s1++;
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s2++;
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n--;
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}
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return 0;
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}
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int IsBadReadPtr(void* data, int size)
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{
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if(size==0)
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return 0;
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if(data==NULL)
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return 1;
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return 0;
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}
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char* HEAP_strdupA(const char* string)
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{
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// return strdup(string);
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char* answ=malloc(strlen(string)+1);
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strcpy(answ, string);
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return answ;
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}
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short* HEAP_strdupAtoW(void* heap, void* hz, const char* string)
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{
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int size, i;
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short* answer;
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if(string==0)
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return 0;
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size=strlen(string);
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answer=malloc(size+size+2);
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for(i=0; i<=size; i++)
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answer[i]=(short)string[i];
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return answer;
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}
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char* HEAP_strdupWtoA(void* heap, void* hz, const short* string)
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{
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int size, i;
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char* answer;
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if(string==0)
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return 0;
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size=0;
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while(string[size])
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size++;
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answer=malloc(size+2);
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for(i=0; i<=size; i++)
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answer[i]=(char)string[i];
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return answer;
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}
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/***********************************************************************
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* FILE_dommap
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*/
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//#define MAP_PRIVATE
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//#define MAP_SHARED
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#undef MAP_ANON
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LPVOID FILE_dommap( int unix_handle, LPVOID start,
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DWORD size_high, DWORD size_low,
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DWORD offset_high, DWORD offset_low,
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int prot, int flags )
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{
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int fd = -1;
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int pos;
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LPVOID ret;
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if (size_high || offset_high)
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printf("offsets larger than 4Gb not supported\n");
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if (unix_handle == -1)
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{
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#ifdef MAP_ANON
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// printf("Anonymous\n");
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flags |= MAP_ANON;
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#else
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static int fdzero = -1;
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if (fdzero == -1)
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{
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if ((fdzero = open( "/dev/zero", O_RDONLY )) == -1)
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{
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perror( "/dev/zero: open" );
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exit(1);
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}
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}
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fd = fdzero;
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#endif /* MAP_ANON */
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/* Linux EINVAL's on us if we don't pass MAP_PRIVATE to an anon mmap */
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#ifdef MAP_SHARED
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flags &= ~MAP_SHARED;
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#endif
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#ifdef MAP_PRIVATE
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flags |= MAP_PRIVATE;
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#endif
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}
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else fd = unix_handle;
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// printf("fd %x, start %x, size %x, pos %x, prot %x\n",fd,start,size_low, offset_low, prot);
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// if ((ret = mmap( start, size_low, prot,
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// flags, fd, offset_low )) != (LPVOID)-1)
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if ((ret = mmap( start, size_low, prot,
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MAP_PRIVATE | MAP_FIXED, fd, offset_low )) != (LPVOID)-1)
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{
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// printf("address %08x\n", *(int*)ret);
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// printf("%x\n", ret);
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return ret;
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}
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// printf("mmap %d\n", errno);
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/* mmap() failed; if this is because the file offset is not */
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/* page-aligned (EINVAL), or because the underlying filesystem */
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/* does not support mmap() (ENOEXEC), we do it by hand. */
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if (unix_handle == -1) return ret;
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if ((errno != ENOEXEC) && (errno != EINVAL)) return ret;
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if (prot & PROT_WRITE)
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{
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/* We cannot fake shared write mappings */
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#ifdef MAP_SHARED
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if (flags & MAP_SHARED) return ret;
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#endif
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#ifdef MAP_PRIVATE
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if (!(flags & MAP_PRIVATE)) return ret;
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#endif
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}
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/* printf( "FILE_mmap: mmap failed (%d), faking it\n", errno );*/
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/* Reserve the memory with an anonymous mmap */
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ret = FILE_dommap( -1, start, size_high, size_low, 0, 0,
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PROT_READ | PROT_WRITE, flags );
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if (ret == (LPVOID)-1)
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// {
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// perror(
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return ret;
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/* Now read in the file */
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if ((pos = lseek( fd, offset_low, SEEK_SET )) == -1)
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{
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FILE_munmap( ret, size_high, size_low );
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// printf("lseek\n");
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return (LPVOID)-1;
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}
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read( fd, ret, size_low );
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lseek( fd, pos, SEEK_SET ); /* Restore the file pointer */
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mprotect( ret, size_low, prot ); /* Set the right protection */
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// printf("address %08x\n", *(int*)ret);
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return ret;
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}
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/***********************************************************************
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* FILE_munmap
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*/
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int FILE_munmap( LPVOID start, DWORD size_high, DWORD size_low )
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{
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if (size_high)
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printf("offsets larger than 4Gb not supported\n");
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return munmap( start, size_low );
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}
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static int mapping_size=0;
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struct file_mapping_s;
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typedef struct file_mapping_s
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{
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int mapping_size;
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char* name;
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HANDLE handle;
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struct file_mapping_s* next;
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struct file_mapping_s* prev;
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}file_mapping;
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static file_mapping* fm=0;
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#define PAGE_NOACCESS 0x01
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#define PAGE_READONLY 0x02
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#define PAGE_READWRITE 0x04
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#define PAGE_WRITECOPY 0x08
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#define PAGE_EXECUTE 0x10
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#define PAGE_EXECUTE_READ 0x20
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#define PAGE_EXECUTE_READWRITE 0x40
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#define PAGE_EXECUTE_WRITECOPY 0x80
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#define PAGE_GUARD 0x100
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#define PAGE_NOCACHE 0x200
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HANDLE CreateFileMappingA(int hFile, void* lpAttr,
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DWORD flProtect, DWORD dwMaxHigh, DWORD dwMaxLow, const char* name)
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{
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unsigned int len;
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HANDLE answer;
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int anon=0;
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int mmap_access=0;
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if(hFile<0)
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{
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anon=1;
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hFile=open("/dev/zero", O_RDWR);
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if(hFile<0)
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return 0;
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}
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if(!anon)
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{
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len=lseek(hFile, 0, SEEK_END);
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lseek(hFile, 0, SEEK_SET);
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}
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else len=dwMaxLow;
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if(flProtect & PAGE_READONLY)
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mmap_access |=PROT_READ;
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else
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mmap_access |=PROT_READ|PROT_WRITE;
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answer=(HANDLE)mmap(NULL, len, mmap_access, MAP_PRIVATE, hFile, 0);
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if(anon)
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close(hFile);
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if(answer!=(HANDLE)-1)
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{
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if(fm==0)
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{
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fm=malloc(sizeof(file_mapping));
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fm->prev=NULL;
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}
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else
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{
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fm->next=malloc(sizeof(file_mapping));
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fm->next->prev=fm;
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fm=fm->next;
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}
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fm->next=NULL;
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fm->handle=answer;
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if(name)
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{
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fm->name=malloc(strlen(name)+1);
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strcpy(fm->name, name);
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}
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else
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fm->name=NULL;
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fm->mapping_size=len;
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if(anon)
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close(hFile);
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return answer;
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}
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return (HANDLE)0;
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}
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int UnmapViewOfFile(HANDLE handle)
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{
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file_mapping* p;
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int result;
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if(fm==0)
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return (HANDLE)0;
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for(p=fm; p; p=p->next)
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{
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if(p->handle==handle)
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{
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result=munmap((void*)handle, p->mapping_size);
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if(p->next)p->next->prev=p->prev;
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if(p->prev)p->prev->next=p->next;
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if(p->name)
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free(p->name);
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if(p==fm)
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fm=p->prev;
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free(p);
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return result;
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}
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}
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return 0;
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}
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//static int va_size=0;
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struct virt_alloc_s;
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typedef struct virt_alloc_s
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{
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int mapping_size;
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char* address;
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struct virt_alloc_s* next;
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struct virt_alloc_s* prev;
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int state;
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}virt_alloc;
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static virt_alloc* vm=0;
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#define MEM_COMMIT 0x00001000
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#define MEM_RESERVE 0x00002000
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void* VirtualAlloc(void* address, DWORD size, DWORD type, DWORD protection)
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{
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void* answer;
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int fd=open("/dev/zero", O_RDWR);
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size=(size+0xffff)&(~0xffff);
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// printf("VirtualAlloc(0x%08X, %d)\n", address
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if(address!=0)
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{
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//check whether we can allow to allocate this
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virt_alloc* str=vm;
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while(str)
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{
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if((unsigned)address>=(unsigned)str->address+str->mapping_size)
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{
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str=str->prev;
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continue;
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}
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if((unsigned)address+size<(unsigned)str->address)
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{
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str=str->prev;
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continue;
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}
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if(str->state==0)
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{
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#warning FIXME
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if(((unsigned)address+size<(unsigned)str->address+str->mapping_size) && (type & MEM_COMMIT))
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{
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close(fd);
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return address; //returning previously reserved memory
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}
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return NULL;
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}
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close(fd);
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return NULL;
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}
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answer=mmap(address, size, PROT_READ | PROT_WRITE | PROT_EXEC,
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MAP_FIXED | MAP_PRIVATE, fd, 0);
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}
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else
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answer=mmap(address, size, PROT_READ | PROT_WRITE | PROT_EXEC,
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MAP_PRIVATE, fd, 0);
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// answer=FILE_dommap(-1, address, 0, size, 0, 0,
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// PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE);
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close(fd);
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if(answer==(void*)-1)
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{
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printf("Error no %d\n", errno);
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printf("VirtualAlloc(0x%08X, %d) failed\n", address, size);
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return NULL;
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}
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else
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{
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virt_alloc *new_vm=malloc(sizeof(virt_alloc));
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new_vm->mapping_size=size;
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new_vm->address=answer;
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new_vm->prev=vm;
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if(type == MEM_RESERVE)
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new_vm->state=0;
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else
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new_vm->state=1;
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if(vm)
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vm->next=new_vm;
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vm=new_vm;
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vm->next=0;
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// if(va_size!=0)
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// printf("Multiple VirtualAlloc!\n");
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// printf("answer=0x%08x\n", answer);
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return answer;
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}
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}
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int VirtualFree(void* address, int t1, int t2)//not sure
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{
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virt_alloc* str=vm;
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int answer;
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while(str)
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{
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if(address!=str->address)
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{
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str=str->prev;
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continue;
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}
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answer=munmap(str->address, str->mapping_size);
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if(str->next)str->next->prev=str->prev;
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if(str->prev)str->prev->next=str->next;
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if(vm==str)vm=0;
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free(str);
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return 0;
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}
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return -1;
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}
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int WideCharToMultiByte(unsigned int codepage, long flags, const short* src,
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int srclen,char* dest, int destlen, const char* defch, int* used_defch)
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{
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int i;
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if(src==0)
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return 0;
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if(srclen==-1){srclen=0; while(src[srclen++]);}
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// for(i=0; i<srclen; i++)
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// printf("%c", src[i]);
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// printf("\n");
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if(dest==0)
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{
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for(i=0; i<srclen; i++)
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{
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src++;
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if(*src==0)
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return i+1;
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}
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return srclen+1;
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}
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if(used_defch)
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*used_defch=0;
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for(i=0; i<min(srclen, destlen); i++)
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{
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*dest=(char)*src;
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dest++;
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src++;
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if(*src==0)
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return i+1;
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}
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return min(srclen, destlen);
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}
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int MultiByteToWideChar(unsigned int codepage,long flags, const char* src, int srclen,
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short* dest, int destlen)
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{
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return 0;
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}
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HANDLE OpenFileMappingA(long access, long prot, char* name)
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{
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file_mapping* p;
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if(fm==0)
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return (HANDLE)0;
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if(name==0)
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return (HANDLE)0;
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for(p=fm; p; p=p->prev)
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{
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if(p->name==0)
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continue;
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if(strcmp(p->name, name)==0)
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return p->handle;
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}
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return 0;
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}
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