OpenAssetTools/src/ZoneWriting/Game/IW4/ZoneWriterFactoryIW4.cpp

113 lines
4.0 KiB
C++

#include "ZoneWriterFactoryIW4.h"
#include <cstring>
#include "ContentWriterIW4.h"
#include "Game/IW4/IW4.h"
#include "Game/IW4/GameIW4.h"
#include "Game/IW4/ZoneConstantsIW4.h"
#include "Writing/Processor/OutputProcessorDeflate.h"
#include "Writing/Steps/StepAddOutputProcessor.h"
#include "Writing/Steps/StepWriteTimestamp.h"
#include "Writing/Steps/StepWriteXBlockSizes.h"
#include "Writing/Steps/StepWriteZero.h"
#include "Writing/Steps/StepWriteZoneContentToFile.h"
#include "Writing/Steps/StepWriteZoneContentToMemory.h"
#include "Writing/Steps/StepWriteZoneHeader.h"
#include "Writing/Steps/StepWriteZoneSizes.h"
using namespace IW4;
class ZoneWriterFactory::Impl
{
Zone* m_zone;
std::unique_ptr<ZoneWriter> m_writer;
public:
explicit Impl(Zone* zone)
: m_zone(zone),
m_writer(std::make_unique<ZoneWriter>())
{
}
void SetupBlocks() const
{
#define XBLOCK_DEF(name, type) std::make_unique<XBlock>(STR(name), name, type)
m_writer->AddXBlock(XBLOCK_DEF(XFILE_BLOCK_TEMP, XBlock::Type::BLOCK_TYPE_TEMP));
m_writer->AddXBlock(XBLOCK_DEF(XFILE_BLOCK_PHYSICAL, XBlock::Type::BLOCK_TYPE_NORMAL));
m_writer->AddXBlock(XBLOCK_DEF(XFILE_BLOCK_RUNTIME, XBlock::Type::BLOCK_TYPE_RUNTIME));
m_writer->AddXBlock(XBLOCK_DEF(XFILE_BLOCK_VIRTUAL, XBlock::Type::BLOCK_TYPE_NORMAL));
m_writer->AddXBlock(XBLOCK_DEF(XFILE_BLOCK_LARGE, XBlock::Type::BLOCK_TYPE_NORMAL));
m_writer->AddXBlock(XBLOCK_DEF(XFILE_BLOCK_CALLBACK, XBlock::Type::BLOCK_TYPE_NORMAL));
m_writer->AddXBlock(XBLOCK_DEF(XFILE_BLOCK_VERTEX, XBlock::Type::BLOCK_TYPE_NORMAL));
m_writer->AddXBlock(XBLOCK_DEF(XFILE_BLOCK_INDEX, XBlock::Type::BLOCK_TYPE_NORMAL));
#undef XBLOCK_DEF
}
static ZoneHeader CreateHeaderForParams(const bool isSecure, const bool isOfficial)
{
ZoneHeader header{};
header.m_version = ZoneConstants::ZONE_VERSION;
if (isSecure)
{
if (isOfficial)
memcpy(header.m_magic, ZoneConstants::MAGIC_SIGNED_INFINITY_WARD, sizeof(ZoneHeader::m_magic));
else
memcpy(header.m_magic, ZoneConstants::MAGIC_SIGNED_OAT, sizeof(ZoneHeader::m_magic));
}
else
{
memcpy(header.m_magic, ZoneConstants::MAGIC_UNSIGNED, sizeof(ZoneHeader::m_magic));
}
return header;
}
std::unique_ptr<ZoneWriter> CreateWriter()
{
// TODO Support signed fastfiles
bool isSecure = false;
SetupBlocks();
auto contentInMemory = std::make_unique<StepWriteZoneContentToMemory>(std::make_unique<ContentWriter>(), m_zone, ZoneConstants::OFFSET_BLOCK_BIT_COUNT, ZoneConstants::INSERT_BLOCK);
auto* contentInMemoryPtr = contentInMemory.get();
m_writer->AddWritingStep(std::move(contentInMemory));
// Write zone header
m_writer->AddWritingStep(std::make_unique<StepWriteZoneHeader>(CreateHeaderForParams(isSecure, false)));
// Write dummy byte that the game ignores as well. No clue what it means.
m_writer->AddWritingStep(std::make_unique<StepWriteZero>(1));
// Write timestamp
m_writer->AddWritingStep(std::make_unique<StepWriteTimestamp>());
m_writer->AddWritingStep(std::make_unique<StepAddOutputProcessor>(std::make_unique<OutputProcessorDeflate>()));
// Start of the XFile struct
m_writer->AddWritingStep(std::make_unique<StepWriteZoneSizes>(contentInMemoryPtr));
m_writer->AddWritingStep(std::make_unique<StepWriteXBlockSizes>(m_zone));
// Start of the zone content
m_writer->AddWritingStep(std::make_unique<StepWriteZoneContentToFile>(contentInMemoryPtr));
// Return the fully setup zoneloader
return std::move(m_writer);
}
};
bool ZoneWriterFactory::SupportsZone(Zone* zone) const
{
return zone->m_game == &g_GameIW4;
}
std::unique_ptr<ZoneWriter> ZoneWriterFactory::CreateWriter(Zone* zone) const
{
Impl impl(zone);
return impl.CreateWriter();
}