Initial commit.

code/win32/win_file_xbox.cpp

@@ -0,0 +1,171 @@
+
+/*
+ * UNPUBLISHED -- Rights  reserved  under  the  copyright  laws  of the 
+ * United States.  Use  of a copyright notice is precautionary only and 
+ * does not imply publication or disclosure.                            
+ *                                                                      
+ * THIS DOCUMENTATION CONTAINS CONFIDENTIAL AND PROPRIETARY INFORMATION 
+ * OF    VICARIOUS   VISIONS,  INC.    ANY  DUPLICATION,  MODIFICATION, 
+ * DISTRIBUTION, OR DISCLOSURE IS STRICTLY PROHIBITED WITHOUT THE PRIOR 
+ * EXPRESS WRITTEN PERMISSION OF VICARIOUS VISIONS, INC.
+ */
+
+#include "../game/q_shared.h"
+#include "win_file.h"
+#include "../qcommon/qcommon.h"
+
+#ifdef _XBOX
+#include <Xtl.h>
+#endif
+
+#ifdef _WINDOWS
+#include <windows.h>
+#endif
+
+
+struct FileTable
+{
+	bool m_bUsed;
+	bool m_bErrorsFatal;
+	HANDLE m_Handle;
+};
+
+FileTable* s_FileTable = NULL;
+const int WF_MAX_OPEN_FILES = 8;
+
+void WF_Init(void)
+{
+	assert(!s_FileTable);
+
+	s_FileTable = new FileTable[WF_MAX_OPEN_FILES];
+
+	for (wfhandle_t i = 0; i < WF_MAX_OPEN_FILES; ++i)
+	{
+		s_FileTable[i].m_bUsed = false;
+	}
+}
+
+void WF_Shutdown(void)
+{
+	assert(s_FileTable);
+	
+	for (wfhandle_t i = 0; i < WF_MAX_OPEN_FILES; ++i)
+	{
+		if (s_FileTable[i].m_bUsed)
+		{
+			WF_Close(i);
+		}
+	}
+
+	delete [] s_FileTable;
+	s_FileTable = NULL;
+}
+
+static wfhandle_t WF_GetFreeHandle(void)
+{
+	for (int i = 0; i < WF_MAX_OPEN_FILES; ++i)
+	{
+		if (!s_FileTable[i].m_bUsed)
+		{
+			return i;
+		}
+	}
+
+	return -1;
+}
+
+int WF_Open(const char* name, bool read, bool aligned)
+{
+	wfhandle_t handle = WF_GetFreeHandle();
+	if (handle == -1) return -1;
+	
+	s_FileTable[handle].m_Handle = 
+		CreateFile(name, read ? GENERIC_READ : GENERIC_READ | GENERIC_WRITE, 
+		FILE_SHARE_READ, 0, 
+		read ? OPEN_EXISTING : OPEN_ALWAYS, 
+		FILE_ATTRIBUTE_NORMAL |(aligned ? FILE_FLAG_NO_BUFFERING : 0) , 0);
+
+	if (s_FileTable[handle].m_Handle != INVALID_HANDLE_VALUE)
+	{
+		s_FileTable[handle].m_bUsed = true;
+		
+		// errors are fatal on game partition
+		s_FileTable[handle].m_bErrorsFatal = (name[0] == 'D' || name[0] == 'd');
+		
+		return handle;
+	}
+	
+	return -1;
+}
+
+void WF_Close(wfhandle_t handle)
+{
+	assert(handle >= 0 && handle < WF_MAX_OPEN_FILES && 
+		s_FileTable[handle].m_bUsed);
+
+	CloseHandle(s_FileTable[handle].m_Handle);
+	s_FileTable[handle].m_bUsed = false;
+}
+
+int WF_Read(void* buffer, int len, wfhandle_t handle)
+{
+	assert(handle >= 0 && handle < WF_MAX_OPEN_FILES && 
+		s_FileTable[handle].m_bUsed);
+
+	DWORD bytes;
+	if (!ReadFile(s_FileTable[handle].m_Handle, buffer, len, &bytes, 0) &&
+		s_FileTable[handle].m_bErrorsFatal)
+	{
+#if defined(FINAL_BUILD)
+		extern void ERR_DiscFail(bool);
+		ERR_DiscFail(false);
+#else
+		assert(0);
+#endif
+	}
+
+	return bytes;
+}
+
+int WF_Write(const void* buffer, int len, wfhandle_t handle)
+{
+	assert(handle >= 0 && handle < WF_MAX_OPEN_FILES && 
+		s_FileTable[handle].m_bUsed);
+
+	DWORD bytes;
+	WriteFile(s_FileTable[handle].m_Handle, buffer, len, &bytes, 0);
+	return bytes;
+}
+
+int WF_Seek(int offset, int origin, wfhandle_t handle)
+{
+	assert(handle >= 0 && handle < WF_MAX_OPEN_FILES && 
+		s_FileTable[handle].m_bUsed);
+
+	switch (origin)
+	{
+	case SEEK_CUR: origin = FILE_CURRENT; break;
+	case SEEK_END: origin = FILE_END; break;
+	case SEEK_SET: origin = FILE_BEGIN; break;
+	default: assert(false);
+	}
+
+	return SetFilePointer(s_FileTable[handle].m_Handle, offset, 0, origin) < 0;
+}
+
+int WF_Tell(wfhandle_t handle)
+{
+	assert(handle >= 0 && handle < WF_MAX_OPEN_FILES && 
+		s_FileTable[handle].m_bUsed);
+
+	return SetFilePointer(s_FileTable[handle].m_Handle, 0, 0, FILE_CURRENT);
+}
+
+int WF_Resize(int size, wfhandle_t handle)
+{
+	assert(handle >= 0 && handle < WF_MAX_OPEN_FILES && 
+		s_FileTable[handle].m_bUsed);
+
+	SetFilePointer(s_FileTable[handle].m_Handle, size, NULL, FILE_BEGIN);
+	return SetEndOfFile(s_FileTable[handle].m_Handle);
+}