Initial commit

src/core/Directory.cpp

@@ -0,0 +1,74 @@
+#include "common.h"
+
+#include "General.h"
+#include "FileMgr.h"
+#include "Directory.h"
+
+CDirectory::CDirectory(int32 maxEntries)
+ : numEntries(0), maxEntries(maxEntries)
+{
+	entries = new DirectoryInfo[maxEntries];
+}
+
+CDirectory::~CDirectory(void)
+{
+	delete[] entries;
+}
+
+void
+CDirectory::ReadDirFile(const char *filename)
+{
+	int fd;
+	DirectoryInfo dirinfo;
+
+	fd = CFileMgr::OpenFile(filename, "rb");
+	while(CFileMgr::Read(fd, (char*)&dirinfo, sizeof(dirinfo)))
+		AddItem(dirinfo);
+	CFileMgr::CloseFile(fd);
+}
+
+bool
+CDirectory::WriteDirFile(const char *filename)
+{
+	int fd;
+	size_t n;
+	fd = CFileMgr::OpenFileForWriting(filename);
+	n = CFileMgr::Write(fd, (char*)entries, numEntries*sizeof(DirectoryInfo));
+	CFileMgr::CloseFile(fd);
+	return n == numEntries*sizeof(DirectoryInfo);
+}
+
+void
+CDirectory::AddItem(const DirectoryInfo &dirinfo)
+{
+	assert(numEntries < maxEntries);
+#ifdef FIX_BUGS
+	// don't add if already exists
+	uint32 offset, size;
+	if(FindItem(dirinfo.name, offset, size))
+		return;
+#endif
+	entries[numEntries++] = dirinfo;
+}
+
+void
+CDirectory::AddItem(const DirectoryInfo &dirinfo, int32 imgId)
+{
+	DirectoryInfo di = dirinfo;
+	di.offset |= imgId<<24;
+	AddItem(di);
+}
+
+bool
+CDirectory::FindItem(const char *name, uint32 &offset, uint32 &size)
+{
+	int i;
+
+	for(i = 0; i < numEntries; i++)
+		if(!CGeneral::faststricmp(entries[i].name, name)){
+			offset = entries[i].offset;
+			size = entries[i].size;
+			return true;
+		}
+	return false;
+}