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Wrapped fopen/close/read/write functions inside a simple "IOFile" class. Reading, writing, and error checking became simpler in most cases. It should be near impossible to forget to close a file now that the destructor takes care of it. (I hope this fixes Issue 3635) I have tested the functionality of most things, but it is possible I broke something. :p

Browse Source 
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7328 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Jordan Woyak
2011-03-11 10:21:46 +00:00
parent 4f69672b2b
commit 59fd1008ca
68 changed files with 1112 additions and 1154 deletions
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72
Source/Core/DiscIO/Src/CompressedBlob.cpp
View File

@ -36,17 +36,17 @@ namespace DiscIO
CompressedBlobReader::CompressedBlobReader(const char *filename)
{
file_name = filename;
file = fopen(filename, "rb");
m_file.Open(filename, "rb");
file_size = File::GetSize(filename);
fread(&header, sizeof(CompressedBlobHeader), 1, file);
m_file.ReadArray(&header, 1);
SetSectorSize(header.block_size);
// cache block pointers and hashes
block_pointers = new u64[header.num_blocks];
fread(block_pointers, sizeof(u64), header.num_blocks, file);
m_file.ReadArray(block_pointers, header.num_blocks);
hashes = new u32[header.num_blocks];
fread(hashes, sizeof(u32), header.num_blocks, file);
m_file.ReadArray(hashes, header.num_blocks);
data_offset = (sizeof(CompressedBlobHeader))
+ (sizeof(u64)) * header.num_blocks // skip block pointers
@ -72,8 +72,6 @@ CompressedBlobReader::~CompressedBlobReader()
delete [] zlib_buffer;
delete [] block_pointers;
delete [] hashes;
fclose(file);
file = 0;
}
// IMPORTANT: Calling this function invalidates all earlier pointers gotten from this function.
@ -106,8 +104,8 @@ void CompressedBlobReader::GetBlock(u64 block_num, u8 *out_ptr)
// clear unused part of zlib buffer. maybe this can be deleted when it works fully.
memset(zlib_buffer + comp_block_size, 0, zlib_buffer_size - comp_block_size);
fseeko(file, offset, SEEK_SET);
fread(zlib_buffer, 1, comp_block_size, file);
m_file.Seek(offset, SEEK_SET);
m_file.ReadBytes(zlib_buffer, comp_block_size);
u8* source = zlib_buffer;
u8* dest = out_ptr;
@ -173,16 +171,11 @@ bool CompressFileToBlob(const char* infile, const char* outfile, u32 sub_type,
scrubbing = true;
}
FILE* inf = fopen(infile, "rb");
if (!inf)
return false;
File::IOFile inf(infile, "rb");
File::IOFile f(outfile, "wb");
FILE* f = fopen(outfile, "wb");
if (!f)
{
fclose(inf);
if (!f || !inf)
return false;
}
callback("Files opened, ready to compress.", 0, arg);
@ -201,9 +194,9 @@ bool CompressFileToBlob(const char* infile, const char* outfile, u32 sub_type,
u8* in_buf = new u8[block_size];
// seek past the header (we will write it at the end)
fseeko(f, sizeof(CompressedBlobHeader), SEEK_CUR);
f.Seek(sizeof(CompressedBlobHeader), SEEK_CUR);
// seek past the offset and hash tables (we will write them at the end)
fseeko(f, (sizeof(u64) + sizeof(u32)) * header.num_blocks, SEEK_CUR);
f.Seek((sizeof(u64) + sizeof(u32)) * header.num_blocks, SEEK_CUR);
// Now we are ready to write compressed data!
u64 position = 0;
@ -215,7 +208,7 @@ bool CompressFileToBlob(const char* infile, const char* outfile, u32 sub_type,
{
if (i % progress_monitor == 0)
{
u64 inpos = ftello(inf);
const u64 inpos = inf.Tell();
int ratio = 0;
if (inpos != 0)
ratio = (int)(100 * position / inpos);
@ -229,9 +222,9 @@ bool CompressFileToBlob(const char* infile, const char* outfile, u32 sub_type,
// u64 size = header.block_size;
std::fill(in_buf, in_buf + header.block_size, 0);
if (scrubbing)
DiscScrubber::GetNextBlock(inf, in_buf);
DiscScrubber::GetNextBlock(inf.GetHandle(), in_buf);
else
fread(in_buf, header.block_size, 1, inf);
inf.ReadBytes(in_buf, header.block_size);
z_stream z;
memset(&z, 0, sizeof(z));
z.zalloc = Z_NULL;
@ -256,7 +249,7 @@ bool CompressFileToBlob(const char* infile, const char* outfile, u32 sub_type,
//PanicAlert("%i %i Store %i", i*block_size, position, comp_size);
// let's store uncompressed
offsets[i] |= 0x8000000000000000ULL;
fwrite(in_buf, block_size, 1, f);
f.WriteBytes(in_buf, block_size);
hashes[i] = HashAdler32(in_buf, block_size);
position += block_size;
num_stored++;
@ -265,7 +258,7 @@ bool CompressFileToBlob(const char* infile, const char* outfile, u32 sub_type,
{
// let's store compressed
//PanicAlert("Comp %i to %i", block_size, comp_size);
fwrite(out_buf, comp_size, 1, f);
f.WriteBytes(out_buf, comp_size);
hashes[i] = HashAdler32(out_buf, comp_size);
position += comp_size;
num_compressed++;
@ -277,10 +270,10 @@ bool CompressFileToBlob(const char* infile, const char* outfile, u32 sub_type,
header.compressed_data_size = position;
// Okay, go back and fill in headers
fseeko(f, 0, SEEK_SET);
fwrite(&header, sizeof(header), 1, f);
fwrite(offsets, sizeof(u64), header.num_blocks, f);
fwrite(hashes, sizeof(u32), header.num_blocks, f);
f.Seek(0, SEEK_SET);
f.WriteArray(&header, 1);
f.WriteArray(offsets, header.num_blocks);
f.WriteArray(hashes, header.num_blocks);
cleanup:
// Cleanup
@ -288,8 +281,7 @@ cleanup:
delete[] out_buf;
delete[] offsets;
delete[] hashes;
fclose(f);
fclose(inf);
DiscScrubber::Cleanup();
callback("Done compressing disc image.", 1.0f, arg);
return true;
@ -306,7 +298,7 @@ bool DecompressBlobToFile(const char* infile, const char* outfile, CompressCB ca
CompressedBlobReader* reader = CompressedBlobReader::Create(infile);
if (!reader) return false;
FILE* f = fopen(outfile, "wb");
File::IOFile f(outfile, "wb");
const CompressedBlobHeader &header = reader->GetHeader();
u8* buffer = new u8[header.block_size];
int progress_monitor = max<int>(1, header.num_blocks / 100);
@ -318,19 +310,12 @@ bool DecompressBlobToFile(const char* infile, const char* outfile, CompressCB ca
callback("Unpacking", (float)i / (float)header.num_blocks, arg);
}
reader->Read(i * header.block_size, header.block_size, buffer);
fwrite(buffer, header.block_size, 1, f);
f.WriteBytes(buffer, header.block_size);
}
delete[] buffer;
#ifdef _WIN32
// ector: _chsize sucks, not 64-bit safe
// F|RES: changed to _chsize_s. i think it is 64-bit safe
_chsize_s(_fileno(f), header.data_size);
#else
ftruncate(fileno(f), header.data_size);
#endif
fclose(f);
f.Resize(header.data_size);
delete reader;
@ -339,15 +324,10 @@ bool DecompressBlobToFile(const char* infile, const char* outfile, CompressCB ca
bool IsCompressedBlob(const char* filename)
{
FILE* f = fopen(filename, "rb");
if (!f)
return false;
File::IOFile f(filename, "rb");
CompressedBlobHeader header;
fread(&header, sizeof(header), 1, f);
fclose(f);
return header.magic_cookie == kBlobCookie;
return f.ReadArray(&header, 1) && (header.magic_cookie == kBlobCookie);
}
} // namespace