C++ (Cpp) File::readSint32BE примеры использования

Пример #1

int16 readVolCnf() {
	int i;
	Common::File fileHandle;
	short int sizeHEntry;

	volumeDataLoaded = 0;

	for (i = 0; i < 20; i++) {
		volumeData[i].ident[0] = 0;
		volumeData[i].ptr = NULL;
		volumeData[i].diskNumber = i + 1;
		volumeData[i].size = 0;
	}

	fileHandle.open("VOL.CNF");

	if (!fileHandle.isOpen()) {
		return (0);
	}

	numOfDisks = fileHandle.readSint16BE();
	sizeHEntry = fileHandle.readSint16BE();		// size of one header entry - 20 bytes

	for (i = 0; i < numOfDisks; i++) {
		//      fread(&volumeData[i],20,1,fileHandle);
		fileHandle.read(&volumeData[i].ident, 10);
		fileHandle.read(&volumeData[i].ptr, 4);
		volumeData[i].diskNumber = fileHandle.readSint16BE();
		volumeData[i].size = fileHandle.readSint32BE();

		debug(1, "Disk number: %d", volumeData[i].diskNumber);
	}

	for (i = 0; i < numOfDisks; i++) {
		dataFileName *ptr;

		volumeData[i].size = fileHandle.readSint32BE();

		ptr = (dataFileName *) mallocAndZero(volumeData[i].size);

		volumeData[i].ptr = ptr;

		if (!ptr) {
			fileHandle.close();
			return (-2);
		}

		fileHandle.read(ptr, volumeData[i].size);
	}

	fileHandle.close();

	volumeDataLoaded = 1;

//#define dumpResources
#ifdef dumpResources

	for (i = 0; i < numOfDisks; i++) {
		int j;
		char nameBuffer[256];
		fileEntry *buffer;

		sprintf(nameBuffer, "D%d.", i + 1);

		fileHandle.open(nameBuffer);

		short int numEntry;
		short int sizeEntry;

		numEntry = fileHandle.readSint16BE();
		sizeEntry = fileHandle.readSint16BE();

		buffer = (fileEntry *) mallocAndZero(numEntry * sizeEntry);

		for (j = 0; j < numEntry; j++) {
			fileHandle.seek(4 + j*0x1E);
			fileHandle.read(buffer[j].name, 14);
			buffer[j].offset = fileHandle.readSint32BE();
			buffer[j].size = fileHandle.readSint32BE();
			buffer[j].extSize = fileHandle.readSint32BE();
			buffer[j].unk3 = fileHandle.readSint32BE();

			fileHandle.seek(buffer[j].offset);

			char *bufferLocal;
			bufferLocal = (char *)mallocAndZero(buffer[j].size);

			fileHandle.read(bufferLocal, buffer[j].size);

			char nameBuffer[256];

			sprintf(nameBuffer, "%s", buffer[j].name);

			if (buffer[j].size == buffer[j].extSize) {
				Common::DumpFile fout;
				fout.open(nameBuffer);
				if (fout.isOpen())
					fout.write(bufferLocal, buffer[j].size);
			} else {
				char *uncompBuffer = (char *)mallocAndZero(buffer[j].extSize + 500);

				delphineUnpack((uint8 *) uncompBuffer, (const uint8 *) bufferLocal, buffer[j].size);

				Common::File fout;
				fout.open(nameBuffer, Common::File::kFileWriteMode);
				if (fout.isOpen())
					fout.write(uncompBuffer, buffer[j].extSize);

				//MemFree(uncompBuffer);

			}

			MemFree(bufferLocal);
		}
		fileHandle.close();
	}

#endif

	return (1);
}