Method DecompressNextBlock

pcsx2/GS/GSLzma.cpp:395–441

	}

	bool GSDumpLzma::DecompressNextBlock()
	{
		if (m_block_index == m_blocks.size())
			return false;

		const Block& block = m_blocks[m_block_index];

		if (block.compressed_size > m_block_read_buffer.size())
			m_block_read_buffer.resize(Common::AlignUpPow2(block.compressed_size, _128kb));

		if (FileSystem::FSeek64(m_fp.get(), static_cast<s64>(block.file_offset), SEEK_SET) != 0 ||
			std::fread(m_block_read_buffer.data(), block.compressed_size, 1, m_fp.get()) != 1)
		{
			Console.ErrorFmt("Failed to read {} bytes from offset {}", block.file_offset, block.compressed_size);
			return false;
		}

		if (block.uncompressed_size > m_block_buffer.size())
			m_block_buffer.resize(Common::AlignUpPow2(block.uncompressed_size, _128kb));

		XzUnpacker_Init(&m_unpacker);
		m_unpacker.streamFlags = block.stream_flags;
		XzUnpacker_PrepareToRandomBlockDecoding(&m_unpacker);
		XzUnpacker_SetOutBuf(&m_unpacker, m_block_buffer.data(), block.uncompressed_size);
		SizeT out_uncompressed_size = block.uncompressed_size;
		SizeT out_compressed_size = block.compressed_size;

		ECoderStatus status;
		const SRes res = XzUnpacker_Code(&m_unpacker, nullptr, &out_uncompressed_size,
			m_block_read_buffer.data(), &out_compressed_size, true, CODER_FINISH_END, &status);
		if (res != SZ_OK || status != CODER_STATUS_FINISHED_WITH_MARK) [[unlikely]]
		{
			Console.ErrorFmt("XzUnpacker_Code() failed: {} (status {})", res, static_cast<unsigned>(status));
			return false;
		}

		if (out_compressed_size != block.compressed_size || out_uncompressed_size != block.uncompressed_size)
		{
			Console.WarningFmt("Decompress size mismatch: {}/{} vs {}/{}", out_compressed_size, out_uncompressed_size,
				block.compressed_size, block.uncompressed_size);
		}

		m_block_size = out_uncompressed_size;
		m_block_pos = 0;
		m_block_index++;
		return true;
	}

	bool GSDumpLzma::IsEof()
	{