CPUTFileSystem::CPUTandroidifstream::CPUTandroidifstream(const cString &fileName, std::ios_base::openmode mode) : iCPUTifstream(fileName, mode)
{
mpAsset = NULL;
mpAssetDir = NULL;
mbEOF = true;
// Extract the file and dir
int length = fileName.length();
int index = fileName.find_last_of("\\/");
cString file = fileName.substr(index + 1, (length - 1 - index));
cString dir = fileName.substr(0, index);
// On Android, all files are in the APK and are compressed.
// We do not have access to the standard file system, so
// all files need streaming from memory through the android asset manager
AAssetManager* assetManager = CPUTWindowAndroid::GetAppState()->activity->assetManager;
mpAssetDir = AAssetManager_openDir(assetManager, dir.c_str());
if (!mpAssetDir)
DEBUG_PRINT("Failed to load asset Dir");
const char* assetFileName = NULL;
while ((assetFileName = AAssetDir_getNextFileName(mpAssetDir)) != NULL)
{
if (strcmp(file.c_str(), assetFileName) == 0)
{
// For some reason we need to pass in the fully pathed filename here, rather than the relative filename
// that we have just been given. This feels like a bug in Android!
mpAsset = AAssetManager_open(assetManager, fileName.c_str()/*assetFileName*/, AASSET_MODE_STREAMING);
if (mpAsset)
mbEOF = false;
return;
}
}
}
// Read the entire contents of a file and return a pointer/size to it
//-----------------------------------------------------------------------------
CPUTResult CPUTFileSystem::ReadFileContents(const cString &fileName, UINT *pSizeInBytes, void **ppData, bool bAddTerminator, bool bLoadAsBinary)
{
#ifdef CPUT_OS_ANDROID
// Extract the file and dir
int length = fileName.length();
int index = fileName.find_last_of("\\/");
cString file = fileName.substr(index + 1, (length - 1 - index));
cString dir = fileName.substr(0, index);
DEBUG_PRINT("ReadFileContents(%s) : dir [%s], file [%s]", fileName.c_str(), dir.c_str(), file.c_str());
// On Android, all files are in the APK and are compressed.
// We do not have access to the standard file system, so
// all files need streaming from memory through the android asset manager
AAssetManager* assetManager = CPUTWindowAndroid::GetAppState()->activity->assetManager;
AAssetDir* assetDir = AAssetManager_openDir(assetManager, dir.c_str());
if (!assetDir)
DEBUG_PRINT("Failed to load asset Dir");
const char* assetFileName = NULL;
while ((assetFileName = AAssetDir_getNextFileName(assetDir)) != NULL)
{
if (strcmp(file.c_str(), assetFileName) == 0)
{
// For some reason we need to pass in the fully pathed filename here, rather than the relative filename
// that we have just been given. This feels like a bug in Android!
AAsset* asset = AAssetManager_open(assetManager, fileName.c_str()/*assetFileName*/, AASSET_MODE_STREAMING);
if (!asset)
{
DEBUG_PRINT("Asset failed to load for file %s", fileName.c_str());
return CPUT_ERROR;
}
*pSizeInBytes = AAsset_getLength(asset);
// allocate buffer
if (bAddTerminator)
*ppData = (void*) new char[*pSizeInBytes + 1];
else
*ppData = (void*) new char[*pSizeInBytes];
if (!*ppData)
{
DEBUG_PRINT("Out of memory loading %s", fileName.c_str());
return CPUT_ERROR;
}
// read it all in
int numBytesRead = AAsset_read(asset, *ppData, *pSizeInBytes);
if (bAddTerminator)
{
((char *)(*ppData))[numBytesRead++] = '\0';
*pSizeInBytes++;
}
ASSERT( numBytesRead == *pSizeInBytes, _L("File read byte count mismatch.") );
AAsset_close(asset);
AAssetDir_close(assetDir);
return CPUT_SUCCESS;
}
}
AAssetDir_close(assetDir);
#else
FILE *pFile = NULL;
if (bLoadAsBinary) {
#if defined (UNICODE) || defined(_UNICODE)
_wfopen_s(&pFile, fileName.c_str(), _L("r"));
#else
pFile = fopen(fileName.c_str(), "r");
#endif
} else {
#if defined (UNICODE) || defined(_UNICODE)
_wfopen_s(&pFile, fileName.c_str(), _L("r"));
#else
pFile = fopen(fileName.c_str(), "r");
#endif
}
if(pFile)
{
// get file size
fseek(pFile, 0, SEEK_END);
*pSizeInBytes = ftell(pFile);
fseek (pFile, 0, SEEK_SET);
// allocate buffer
*ppData = (void*) new char[*pSizeInBytes];
ASSERT( *ppData, _L("Out of memory") );
// read it all in
UINT numBytesRead = (UINT) fread(*ppData, sizeof(char), *pSizeInBytes, pFile);
if (bAddTerminator)
{
((char *)(*ppData))[numBytesRead++] = '\0';
*pSizeInBytes++;
}
ASSERT( numBytesRead == *pSizeInBytes, _L("File read byte count mismatch.") );
// close and return
fclose(pFile);
return CPUT_SUCCESS;
}
#endif
// some kind of file error, translate the error code and return it
return CPUT_ERROR;
// return TranslateFileError(err);
}
