const void * ResCache::Load(const Resource & r)
{
// Note: Change Post-printing
//
// Graphic resources are loaded differently, since the tool that created them (Ipac)
// added some data to grab any sequence of frames - not just the whole thing.
//
// Added an optional<int> &len in case we wanted to return the
// length of the resource in bytes.
int size = m_file->VGetResourceSize(r);
char *buffer = Allocate(size);
if (buffer==NULL)
{
return NULL; // ResCache is out of memory!
}
memset(buffer,0,sizeof(buffer));
// Create a new resource and add it to the lru list and map
ResHandle *handle = SAFE_NEW ResHandle(r, buffer);
m_lru.push_front(handle);
m_resources[r.m_name] = handle;
m_file->VGetResource(r, buffer);
return buffer;
}
//************************************
// Method: VCreateHandle
// FullName: Resource::VCreateHandle
// Access: virtual public
// Returns: ResHandle *
// Qualifier:
// Parameter: const char * buffer
// Parameter: unsigned int size
// Parameter: ResCache * pResCache
//************************************
ResHandle *Resource::VCreateHandle(const char *buffer, unsigned int size, ResCache *pResCache)
{
return DEBUG_CLIENTBLOCK ResHandle(*this, (char*)buffer, size, pResCache);
}
ResHandle* ResCache::Load(Resource* resource, IResourceFile *file)
{
// Create a new resource and add it to the lru list and map
IResourceLoader* loader;
ResHandle* handle;
for (ResourceLoaders::iterator it = m_resourceLoaders.begin(); it != m_resourceLoaders.end(); ++it)
{
IResourceLoader* testLoader = *it;
if (WildcardMatch(testLoader->VGetPattern().c_str(), resource->m_name.c_str()))
{
loader = testLoader;
break;
}
}
if (!loader)
{
//GCC_ASSERT(loader && _T("Default resource loader not found!"));
return handle; // Resource not loaded!
}
int rawSize = m_file->GetRawResourceSize(*resource);
if (rawSize < 0)
{
//GCC_ASSERT(rawSize > 0 && "Resource size returned -1 - Resource not found");
return nullptr;
}
int allocSize = rawSize + ((loader->VAddNullZero()) ? (1) : (0));
char* rawBuffer;
if (loader->VUseRawFile())
{
rawBuffer = Allocate(allocSize);
}
else
{
rawBuffer = NEW char[allocSize];
}
memset(rawBuffer, 0, allocSize);
if (rawBuffer == NULL || m_file->GetRawResource(*resource, rawBuffer) == 0)
{
// resource cache out of memory
return nullptr;
}
char* buffer = NULL;
unsigned int size = 0;
if (loader->VUseRawFile())
{
buffer = rawBuffer;
handle = NEW ResHandle(*resource, buffer, rawSize, this);
}
else
{
size = loader->VGetLoadedResourceSize(rawBuffer, rawSize);
buffer = Allocate(size);
if (rawBuffer == NULL || buffer == NULL)
{
// resource cache out of memory
return nullptr;
}
handle = NEW ResHandle(*resource, buffer, size, this);
bool success = loader->VLoadResource(rawBuffer, rawSize, handle);
if (loader->VDiscardRawBufferAfterLoad())
{
SAFE_DELETE_ARRAY(rawBuffer);
}
if (!success)
{
// resource cache out of memory
return nullptr;
}
}
if (handle)
{
m_lruResources.push_front(handle);
m_resources[resource->m_name] = handle;
}
//JB_ASSERT(loader && _T("Default resource loader not found!"));
return handle; // ResCache is out of memory!
}
//
// ResCache::Load - Chapter 8, page 228-230
//
shared_ptr<ResHandle> ResCache::Load(Resource *r)
{
// Create a new resource and add it to the lru list and map
shared_ptr<IResourceLoader> loader;
shared_ptr<ResHandle> handle;
for (ResourceLoaders::iterator it = m_resourceLoaders.begin(); it != m_resourceLoaders.end(); ++it)
{
shared_ptr<IResourceLoader> testLoader = *it;
if (WildcardMatch(testLoader->VGetPattern().c_str(), r->m_name.c_str()))
{
loader = testLoader;
break;
}
}
if (!loader)
{
GCC_ASSERT(loader && _T("Default resource loader not found!"));
return handle; // Resource not loaded!
}
int rawSize = m_file->VGetRawResourceSize(*r);
if (rawSize < 0)
{
GCC_ASSERT(rawSize > 0 && "Resource size returned -1 - Resource not found");
return shared_ptr<ResHandle>();
}
int allocSize = rawSize + ((loader->VAddNullZero()) ? (1) : (0));
char *rawBuffer = loader->VUseRawFile() ? Allocate(allocSize) : GCC_NEW char[allocSize];
memset(rawBuffer, 0, allocSize);
if (rawBuffer==NULL || m_file->VGetRawResource(*r, rawBuffer)==0)
{
// resource cache out of memory
return shared_ptr<ResHandle>();
}
char *buffer = NULL;
unsigned int size = 0;
if (loader->VUseRawFile())
{
buffer = rawBuffer;
handle = shared_ptr<ResHandle>(GCC_NEW ResHandle(*r, buffer, rawSize, this));
}
else
{
size = loader->VGetLoadedResourceSize(rawBuffer, rawSize);
buffer = Allocate(size);
if (rawBuffer==NULL || buffer==NULL)
{
// resource cache out of memory
return shared_ptr<ResHandle>();
}
handle = shared_ptr<ResHandle>(GCC_NEW ResHandle(*r, buffer, size, this));
bool success = loader->VLoadResource(rawBuffer, rawSize, handle);
// [mrmike] - This was added after the chapter went to copy edit. It is used for those
// resoruces that are converted to a useable format upon load, such as a compressed
// file. If the raw buffer from the resource file isn't needed, it shouldn't take up
// any additional memory, so we release it.
//
if (loader->VDiscardRawBufferAfterLoad())
{
SAFE_DELETE_ARRAY(rawBuffer);
}
if (!success)
{
// resource cache out of memory
return shared_ptr<ResHandle>();
}
}
if (handle)
{
m_lru.push_front(handle);
m_resources[r->m_name] = handle;
}
GCC_ASSERT(loader && _T("Default resource loader not found!"));
return handle; // ResCache is out of memory!
}
