Function SaveState_AddToZip

pcsx2/SaveState.cpp:927–1030

-------------------------------------------------------------------------------------- CompressThread_VmState --------------------------------------------------------------------------------------

//  CompressThread_VmState
// --------------------------------------------------------------------------------------
static bool SaveState_AddToZip(zip_t* zf, ArchiveEntryList* srclist, SaveStateScreenshotData* screenshot)
{
	u32 compression = ZIP_CM_DEFAULT;
	u32 compression_level = 0;

	if (EmuConfig.Savestate.CompressionType == SavestateCompressionMethod::Zstandard)
	{
		compression = ZIP_CM_ZSTD;

		if (EmuConfig.Savestate.CompressionRatio == SavestateCompressionLevel::Low)
			compression_level = 1;
		else if (EmuConfig.Savestate.CompressionRatio == SavestateCompressionLevel::Medium)
			compression_level = 3;
		else if (EmuConfig.Savestate.CompressionRatio == SavestateCompressionLevel::High)
			compression_level = 10;
		else if (EmuConfig.Savestate.CompressionRatio == SavestateCompressionLevel::VeryHigh)
			compression_level = 22;
	}
	else if (EmuConfig.Savestate.CompressionType == SavestateCompressionMethod::Deflate)
	{
		compression = ZIP_CM_DEFLATE;
		if (EmuConfig.Savestate.CompressionRatio == SavestateCompressionLevel::Low)
			compression_level = 1;
		else if (EmuConfig.Savestate.CompressionRatio == SavestateCompressionLevel::Medium)
			compression_level = 5;
		else if (EmuConfig.Savestate.CompressionRatio == SavestateCompressionLevel::High)
			compression_level = 7;
		else if (EmuConfig.Savestate.CompressionRatio == SavestateCompressionLevel::VeryHigh)
			compression_level = 9;
	}
	else if (EmuConfig.Savestate.CompressionType == SavestateCompressionMethod::Uncompressed)
	{
		compression = ZIP_CM_STORE;
		compression_level = 0;
	}

	// version indicator
	{
		struct VersionIndicator
		{
			u32 save_version;
			char version[STATE_PCSX2_VERSION_SIZE];
		};

		VersionIndicator* vi = static_cast<VersionIndicator*>(std::malloc(sizeof(VersionIndicator)));
		vi->save_version = g_SaveVersion;
		if (BuildVersion::GitTaggedCommit)
		{
			StringUtil::Strlcpy(vi->version, BuildVersion::GitTag, std::size(vi->version));
		}
		else
		{
			StringUtil::Strlcpy(vi->version, "Unknown", std::size(vi->version));
		}

		zip_source_t* const zs = zip_source_buffer(zf, vi, sizeof(*vi), 1);
		if (!zs)
		{