Remove unnecessary Src/ folders

Source/Core/DiscIO/WbfsBlob.cpp

@@ -0,0 +1,196 @@
+// Copyright 2013 Dolphin Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#include "WbfsBlob.h"
+#include "FileUtil.h"
+
+namespace DiscIO
+{
+const u64 wii_sector_size = 0x8000;
+const u64 wii_sector_count = 143432 * 2;
+const u64 wii_sector_log2 = 15;
+const u64 wii_disc_header_size = 256;
+
+static inline u64 align(u64 value, u64 bounds)
+{
+	return (value + (bounds - 1)) & (~(bounds - 1));
+}
+
+WbfsFileReader::WbfsFileReader(const char* filename)
+	: m_total_files(0), m_size(0), m_wlba_table(0), m_good(true)
+{
+	if(!filename || (strlen(filename) < 4) || !OpenFiles(filename) || !ReadHeader())
+	{
+		m_good = false;
+		return;
+	}
+
+	// Grab disc info (assume slot 0, checked in ReadHeader())
+	m_wlba_table = new u16[m_blocks_per_disc];
+	m_files[0]->file.Seek(hd_sector_size + wii_disc_header_size /*+ i * m_disc_info_size*/, SEEK_SET);
+	m_files[0]->file.ReadBytes(m_wlba_table, m_blocks_per_disc * sizeof(u16));
+}
+
+WbfsFileReader::~WbfsFileReader()
+{
+	for(u32 i = 0; i != m_files.size(); ++ i)
+	{
+		delete m_files[i];
+	}
+
+	delete[] m_wlba_table;
+}
+
+bool WbfsFileReader::OpenFiles(const char* filename)
+{
+	m_total_files = 0;
+
+	while(true)
+	{
+		file_entry* new_entry = new file_entry;
+
+		// Replace last character with index (e.g. wbfs = wbf1)
+		std::string path = filename;
+		if(0 != m_total_files)
+		{
+			path[path.length() - 1] = '0' + m_total_files;
+		}
+
+		if(!new_entry->file.Open(path, "rb"))
+		{
+			delete new_entry;
+			return 0 != m_total_files;
+		}
+
+		new_entry->base_address = m_size;
+		new_entry->size = new_entry->file.GetSize();
+		m_size += new_entry->size;
+
+		m_total_files ++;
+		m_files.push_back(new_entry);
+	}
+}
+
+bool WbfsFileReader::ReadHeader()
+{
+	m_files[0]->file.Seek(4, SEEK_SET);
+
+	// Read hd size info
+	m_files[0]->file.ReadBytes(&hd_sector_count, 4);
+	hd_sector_count = Common::swap32(hd_sector_count);
+
+	m_files[0]->file.ReadBytes(&hd_sector_shift, 1);
+	hd_sector_size = 1ull << hd_sector_shift;
+
+	if(m_size != hd_sector_count * hd_sector_size)
+	{
+		//printf("File size doesn't match expected size\n");
+		return false;
+	}
+
+	// Read wbfs cluster info
+	m_files[0]->file.ReadBytes(&wbfs_sector_shift, 1);
+	wbfs_sector_size = 1ull << wbfs_sector_shift;
+	wbfs_sector_count = m_size / wbfs_sector_size;
+
+	if(wbfs_sector_size < wii_sector_size)
+	{
+		//Setting this too low would case a very large memory allocation
+		return false;
+	}
+
+	m_blocks_per_disc = (wii_sector_count * wii_sector_size) / wbfs_sector_size;
+	m_disc_info_size = align(wii_disc_header_size + m_blocks_per_disc * 2, hd_sector_size);
+
+	// Read disc table
+	m_files[0]->file.Seek(2, SEEK_CUR);
+	m_files[0]->file.ReadBytes(disc_table, 500);
+
+	if(0 == disc_table[0])
+	{
+		//printf("Game must be in 'slot 0'\n");
+		return false;
+	}
+
+	return true;
+}
+
+bool WbfsFileReader::Read(u64 offset, u64 nbytes, u8* out_ptr)
+{
+	while(nbytes)
+	{
+		u64 read_size = 0;
+		File::IOFile& data_file = SeekToCluster(offset, &read_size);
+		read_size = (read_size > nbytes) ? nbytes : read_size;
+
+		data_file.ReadBytes(out_ptr, read_size);
+
+		out_ptr += read_size;
+		nbytes -= read_size;
+		offset += read_size;
+	}
+
+	return true;
+}
+
+File::IOFile& WbfsFileReader::SeekToCluster(u64 offset, u64* available)
+{
+	u64 base_cluster = offset >> wbfs_sector_shift;
+	if(base_cluster < m_blocks_per_disc)
+	{
+		u64 cluster_address = wbfs_sector_size * Common::swap16(m_wlba_table[base_cluster]);
+		u64 cluster_offset = offset & (wbfs_sector_size - 1);
+		u64 final_address = cluster_address + cluster_offset;
+
+		for(u32 i = 0; i != m_total_files; i ++)
+		{
+			if(final_address < (m_files[i]->base_address + m_files[i]->size))
+			{
+				m_files[i]->file.Seek(final_address - m_files[i]->base_address, SEEK_SET);
+				if(available)
+				{
+					u64 till_end_of_file = m_files[i]->size - (final_address - m_files[i]->base_address);
+					u64 till_end_of_sector = wbfs_sector_size - cluster_offset;
+					*available = std::min(till_end_of_file, till_end_of_sector);
+				}
+
+				return m_files[i]->file;
+			}
+		}
+	}
+
+	PanicAlert("Read beyond end of disc");
+	m_files[0]->file.Seek(0, SEEK_SET);
+	return m_files[0]->file;
+}
+
+WbfsFileReader* WbfsFileReader::Create(const char* filename)
+{
+	WbfsFileReader* reader = new WbfsFileReader(filename);
+
+	if(reader->IsGood())
+	{
+		return reader;
+	}
+	else
+	{
+		delete reader;
+		return NULL;
+	}
+}
+
+bool IsWbfsBlob(const char* filename)
+{
+	File::IOFile f(filename, "rb");
+
+	u8 magic[4] = {0, 0, 0, 0};
+	f.ReadBytes(&magic, 4);
+
+	return	(magic[0] == 'W') &&
+			(magic[1] == 'B') &&
+			(magic[2] == 'F') &&
+			(magic[3] == 'S');
+}
+
+}  // namespace