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diimage: Added load_software_region() function that loads a software list region into a shared_ptr. [Curt Coder]

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Curt Coder 2013-12-20 16:03:02 +00:00
parent 79471e5725
commit 7afab9bda2
3 changed files with 23 additions and 0 deletions
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1
src/emu/devfind.h
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@ -258,6 +258,7 @@ public:
// getter for explicit fetching
UINT32 bytes() const { return m_bytes; }
UINT32 mask() const { return m_bytes - 1; }
// setter for setting the object
void set_target(_PointerType *target, size_t bytes) { this->m_target = target; m_bytes = bytes; }

19
src/emu/diimage.c
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@ -434,6 +434,25 @@ const char *device_image_interface::get_feature(const char *feature_name)
return NULL;
}
//-------------------------------------------------
// load_software_region -
//-------------------------------------------------
bool device_image_interface::load_software_region(const char *tag, optional_shared_ptr<UINT8> &ptr)
{
size_t size = get_software_region_length(tag);
if (size)
{
ptr.allocate(size);
memcpy(ptr, get_software_region(tag), size);
}
return size > 0;
}
/****************************************************************************
Hash info loading

3
src/emu/diimage.h
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@ -176,6 +176,8 @@ public:
bool has_been_created() { return m_created; }
void make_readonly() { m_readonly = true; }
UINT32 fread(void *buffer, UINT32 length) { check_for_file(); return core_fread(m_file, buffer, length); }
UINT32 fread(optional_shared_ptr<UINT8> &ptr, UINT32 length) { ptr.allocate(length); return fread(ptr, length); }
UINT32 fread(optional_shared_ptr<UINT8> &ptr, UINT32 length, offs_t offset) { ptr.allocate(length); return fread(ptr + offset, length - offset); }
UINT32 fwrite(const void *buffer, UINT32 length) { check_for_file(); return core_fwrite(m_file, buffer, length); }
int fseek(INT64 offset, int whence) { check_for_file(); return core_fseek(m_file, offset, whence); }
UINT64 ftell() { check_for_file(); return core_ftell(m_file); }
@ -201,6 +203,7 @@ public:
UINT8 *get_software_region(const char *tag);
UINT32 get_software_region_length(const char *tag);
const char *get_feature(const char *feature_name);
bool load_software_region(const char *tag, optional_shared_ptr<UINT8> &ptr);
UINT32 crc();
hash_collection& hash() { return m_hash; }