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Fixed image based cheat file loading (no whatsnew)

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This commit is contained in:
Miodrag Milanovic 2010-07-28 07:21:11 +00:00
parent fd3cb21ba2
commit 45e044d3ad
2 changed files with 6 additions and 7 deletions
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11
src/emu/diimage.c
View File

@ -180,8 +180,7 @@ device_image_interface::device_image_interface(running_machine &machine, const d
m_mame_file(NULL),
m_full_software_name(NULL),
m_software_info_ptr(NULL),
m_software_part_ptr(NULL),
m_hash(NULL)
m_software_part_ptr(NULL)
{
m_mempool = pool_alloc_lib(memory_error);
}
@ -539,7 +538,7 @@ int device_image_interface::read_hash_config(const char *sysname)
goto done;
/* look up this entry in the hash file */
info = hashfile_lookup(hashfile, m_hash);
info = hashfile_lookup(hashfile, m_hash.cstr());
if (!info)
goto done;
@ -596,7 +595,7 @@ void device_image_interface::image_checkhash()
int rc;
/* only calculate CRC if it hasn't been calculated, and the open_mode is read only */
if (!m_hash && !m_writeable && !m_created)
if (m_hash.len()==0 && !m_writeable && !m_created)
{
/* do not cause a linear read of 600 megs please */
/* TODO: use SHA/MD5 in the CHD header as the hash */
@ -631,8 +630,8 @@ UINT32 device_image_interface::crc()
UINT32 crc = 0;
image_checkhash();
if (m_hash != NULL)
crc = hash_data_extract_crc32(m_hash);
if (m_hash.len()!= 0)
crc = hash_data_extract_crc32(m_hash.cstr());
return crc;
}

2
src/emu/diimage.h
View File

@ -327,7 +327,7 @@ protected:
object_pool *m_mempool;
char *m_hash;
astring m_hash;
};