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CDVD: Clean up CHD initialization 

Now with 100% less `delete`s
This commit is contained in:
TellowKrinkle 2021-03-25 00:30:07 -05:00 committed by lightningterror
parent 286e32c012
commit f3ac8ee464
1 changed files with 47 additions and 56 deletions
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103
pcsx2/CDVD/ChdFileReader.cpp
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@ -20,7 +20,6 @@
#include <wx/dir.h>
bool ChdFileReader::CanHandle(const wxString& fileName)
{
if (!wxFileName::FileExists(fileName) || !fileName.Lower().EndsWith(L".chd"))
@ -32,100 +31,92 @@ bool ChdFileReader::CanHandle(const wxString& fileName)
bool ChdFileReader::Open2(const wxString& fileName)
{
Close2();
m_filename = fileName;
chd_file* child = NULL;
chd_file* parent = NULL;
chd_header* header = new chd_header;
chd_header* parent_header = new chd_header;
chd_header header;
chd_header parent_header;
wxString chds[8];
chds[0] = fileName;
int chd_depth = 0;
chd_error error;
do
// TODO: Unicode correctness on Windows
while (CHDERR_REQUIRES_PARENT == (error = chd_open(chds[chd_depth].c_str(), CHD_OPEN_READ, NULL, &child)))
{
// Console.Error(L"chd_open checking: %s", static_cast<const char*>(chds[chd_depth]));
error = chd_open(static_cast<const char*>(chds[chd_depth]), CHD_OPEN_READ, NULL, &child);
if (error == CHDERR_REQUIRES_PARENT)
if (chd_depth >= static_cast<int>(ArraySize(chds) - 1))
{
if (chd_read_header(static_cast<const char*>(chds[chd_depth]), header) != CHDERR_NONE)
Console.Error(L"CDVD: chd_open hit recursion limit searching for parents");
return false;
}
if (chd_read_header(chds[chd_depth].c_str(), &header) != CHDERR_NONE)
{
Console.Error(L"CDVD: chd_open chd_read_header error: %s: %s", chd_error_string(error), WX_STR(chds[chd_depth]));
return false;
}
bool found_parent = false;
wxFileName wxfilename(chds[chd_depth]);
wxString dir_path = wxfilename.GetPath();
wxDir dir(dir_path);
if (dir.IsOpened())
{
wxString parent_fileName;
bool cont = dir.GetFirst(&parent_fileName, wxString("*.", wxfilename.GetExt()), wxDIR_FILES | wxDIR_HIDDEN);
for (; cont; cont = dir.GetNext(&parent_fileName))
{
Console.Error(L"chd_open chd_read_header error: %s: %s", chd_error_string(error), static_cast<const char*>(chds[chd_depth]));
delete header;
delete parent_header;
return false;
}
bool found_parent = false;
wxFileName wxfilename(chds[chd_depth]);
wxString dir_path = wxfilename.GetPath();
wxDir dir(dir_path);
if (dir.IsOpened())
{
wxString parent_fileName;
bool cont = dir.GetFirst(&parent_fileName, wxString("*.", wxfilename.GetExt()), wxDIR_FILES | wxDIR_HIDDEN);
while (cont)
parent_fileName = wxFileName(dir_path, parent_fileName).GetFullPath();
if (chd_read_header(parent_fileName.c_str(), &parent_header) == CHDERR_NONE &&
memcmp(parent_header.sha1, header.parentsha1, sizeof(parent_header.sha1)) == 0)
{
parent_fileName = wxFileName(dir_path, parent_fileName).GetFullPath();
if (chd_read_header(static_cast<const char*>(parent_fileName), parent_header) == CHDERR_NONE &&
memcmp(parent_header->sha1, header->parentsha1, sizeof(parent_header->sha1)) == 0)
{
found_parent = true;
chds[++chd_depth] = wxString(parent_fileName);
break;
}
cont = dir.GetNext(&parent_fileName);
found_parent = true;
chds[++chd_depth] = wxString(parent_fileName);
break;
}
}
if (!found_parent)
{
Console.Error(L"chd_open no parent for: %s", static_cast<const char*>(chds[chd_depth]));
break;
}
}
} while (error == CHDERR_REQUIRES_PARENT);
delete parent_header;
if (!found_parent)
{
Console.Error(L"CDVD: chd_open no parent for: %s", WX_STR(chds[chd_depth]));
break;
}
}
if (error != CHDERR_NONE)
{
Console.Error(L"chd_open return error: %s", chd_error_string(error));
delete header;
Console.Error(L"CDVD: chd_open return error: %s", chd_error_string(error));
return false;
}
// Console.Error(L"chd_opened parent: %d %s", chd_depth, static_cast<const char*>(chds[chd_depth]));
for (int d = chd_depth - 1; d >= 0; d--)
{
// parent = child;
// child = (chd_file**)malloc(sizeof(chd_file*));
parent = child;
child = NULL;
// Console.Error(L"chd_open opening chd: %d %s", d, static_cast<const char*>(chds[d]));
error = chd_open(static_cast<const char*>(chds[d]), CHD_OPEN_READ, parent, &child);
error = chd_open(chds[d].c_str(), CHD_OPEN_READ, parent, &child);
if (error != CHDERR_NONE)
{
Console.Error(L"chd_open return error: %s", chd_error_string(error));
delete header;
Console.Error(L"CDVD: chd_open return error: %s", chd_error_string(error));
if (parent)
chd_close(parent);
return false;
}
}
ChdFile = child;
if (chd_read_header(static_cast<const char*>(chds[0]), header) != CHDERR_NONE)
if (chd_read_header(chds[0].c_str(), &header) != CHDERR_NONE)
{
Console.Error(L"chd_open chd_read_header error: %s: %s", chd_error_string(error), static_cast<const char*>(chds[0]));
delete header;
Console.Error(L"CDVD: chd_open chd_read_header error: %s: %s", chd_error_string(error), WX_STR(chds[0]));
return false;
}
// const chd_header *header = chd_get_header(ChdFile);
file_size = static_cast<u64>(header->unitbytes) * header->unitcount;
hunk_size = header->hunkbytes;
file_size = static_cast<u64>(header.unitbytes) * header.unitcount;
hunk_size = header.hunkbytes;
// CHD likes to use full 2448 byte blocks, but keeps the +24 offset of source ISOs
// The rest of PCSX2 likes to use 2448 byte buffers, which can't fit that so trim blocks instead
m_internalBlockSize = header->unitbytes;
m_internalBlockSize = header.unitbytes;
delete header;
return true;
}
@ -153,7 +144,7 @@ int ChdFileReader::ReadChunk(void *dst, s64 chunkID)
chd_error error = chd_read(ChdFile, chunkID, dst);
if (error != CHDERR_NONE)
{
Console.Error(L"chd_read returned error: %s", chd_error_string(error));
Console.Error(L"CDVD: chd_read returned error: %s", chd_error_string(error));
return 0;
}