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(mednafen/file.cpp) Simplify

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This commit is contained in:
twinaphex 2015-09-23 00:57:23 +02:00
parent e0c55c4d6c
commit 7564fe7870
1 changed files with 20 additions and 31 deletions
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51
mednafen/file.cpp
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@ -109,50 +109,39 @@ bool MDFNFILE::Close(void)
uint64 MDFNFILE::fread(void *ptr, size_t element_size, size_t nmemb)
{
uint32 total = element_size * nmemb;
int64 avail = f_size - location;
if (nmemb > avail)
nmemb = avail;
if (location >= f_size)
return 0;
if ((location + total) > f_size)
{
int64 ak = f_size - location;
memcpy((uint8*)ptr, f_data + location, ak);
location = f_size;
return(ak / element_size);
}
else
{
memcpy((uint8*)ptr, f_data + location, total);
location += total;
return nmemb;
}
memcpy((uint8*)ptr, f_data + location, nmemb);
location += nmemb;
return nmemb;
}
int MDFNFILE::fseek(int64 offset, int whence)
{
size_t ptr;
switch(whence)
{
case SEEK_SET:
if (offset >= f_size)
return -1;
location = offset;
ptr = offset;
break;
case SEEK_CUR:
if ((offset + location) > f_size)
return -1;
location += offset;
ptr = location + offset;
break;
case SEEK_END:
ptr = f_size + offset;
break;
}
return 0;
if (ptr <= f_size)
{
location = ptr;
return 0;
}
return -1;
}
int MDFNFILE::read16le(uint16 *val)