From ebefcc885f74461cd0e3f19b5ae3622dc6cf6dbc Mon Sep 17 00:00:00 2001
From: Brad Davis <bdavis@saintandreas.org>
Date: Thu, 27 Jun 2013 11:25:32 -0800
Subject: SDK 0.2.2

---
 LibOVR/Src/Kernel/OVR_Log.cpp | 173 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 173 insertions(+)
 create mode 100644 LibOVR/Src/Kernel/OVR_Log.cpp

(limited to 'LibOVR/Src/Kernel/OVR_Log.cpp')

diff --git a/LibOVR/Src/Kernel/OVR_Log.cpp b/LibOVR/Src/Kernel/OVR_Log.cpp
new file mode 100644
index 0000000..baede98
--- /dev/null
+++ b/LibOVR/Src/Kernel/OVR_Log.cpp
@@ -0,0 +1,173 @@
+/************************************************************************************
+
+Filename    :   OVR_Log.cpp
+Content     :   Logging support
+Created     :   September 19, 2012
+Notes       : 
+
+Copyright   :   Copyright 2012 Oculus VR, Inc. All Rights reserved.
+
+Use of this software is subject to the terms of the Oculus license
+agreement provided at the time of installation or download, or which
+otherwise accompanies this software in either electronic or hard copy form.
+
+************************************************************************************/
+
+#include "OVR_Log.h"
+#include "OVR_Std.h"
+#include <stdarg.h>
+#include <stdio.h>
+
+#if defined(OVR_OS_WIN32)
+#include <windows.h>
+#elif defined(OVR_OS_ANDROID)
+#include <android/log.h>
+#endif
+
+namespace OVR {
+
+// Global Log pointer.
+Log* volatile OVR_GlobalLog = 0;
+
+//-----------------------------------------------------------------------------------
+// ***** Log Implementation
+
+Log::~Log()
+{
+    // Clear out global log
+    if (this == OVR_GlobalLog)
+    {
+        // TBD: perhaps we should ASSERT if this happens before system shutdown?
+        OVR_GlobalLog = 0;
+    }
+}
+
+void Log::LogMessageVarg(LogMessageType messageType, const char* fmt, va_list argList)
+{
+    if ((messageType & LoggingMask) == 0)
+        return;
+#ifndef OVR_BUILD_DEBUG
+    if (IsDebugMessage(messageType))
+        return;
+#endif
+
+    char buffer[MaxLogBufferMessageSize];
+    FormatLog(buffer, MaxLogBufferMessageSize, messageType, fmt, argList);
+    DefaultLogOutput(buffer, IsDebugMessage(messageType));
+}
+
+void OVR::Log::LogMessage(LogMessageType messageType, const char* pfmt, ...)
+{
+    va_list argList;
+    va_start(argList, pfmt);
+    LogMessageVarg(messageType, pfmt, argList);
+    va_end(argList);
+}
+
+
+void Log::FormatLog(char* buffer, unsigned bufferSize, LogMessageType messageType,
+                    const char* fmt, va_list argList)
+{    
+    bool addNewline = true;
+
+    switch(messageType)
+    {
+    case Log_Error:         OVR_strcpy(buffer, bufferSize, "Error: ");     break;
+    case Log_Debug:         OVR_strcpy(buffer, bufferSize, "Debug: ");     break;
+    case Log_Assert:        OVR_strcpy(buffer, bufferSize, "Assert: ");    break;
+    case Log_Text:       buffer[0] = 0; addNewline = false; break;
+    case Log_DebugText:  buffer[0] = 0; addNewline = false; break;
+    default:        
+        buffer[0] = 0;
+        addNewline = false;
+        break;
+    }
+
+    UPInt prefixLength = OVR_strlen(buffer);
+    char *buffer2      = buffer + prefixLength;
+    OVR_vsprintf(buffer2, bufferSize - prefixLength, fmt, argList);
+
+    if (addNewline)
+        OVR_strcat(buffer, bufferSize, "\n");
+}
+
+
+void Log::DefaultLogOutput(const char* formattedText, bool debug)
+{
+
+#if defined(OVR_OS_WIN32)
+    // Under Win32, output regular messages to console if it exists; debug window otherwise.
+    static DWORD dummyMode;
+    static bool  hasConsole = (GetStdHandle(STD_OUTPUT_HANDLE) != INVALID_HANDLE_VALUE) &&
+                              (GetConsoleMode(GetStdHandle(STD_OUTPUT_HANDLE), &dummyMode));
+
+    if (!hasConsole || debug)
+    {
+        ::OutputDebugStringA(formattedText);
+    }
+    else
+    {
+         fputs(formattedText, stdout);
+    }    
+
+#elif defined(OVR_OS_ANDROID)
+    __android_log_write(ANDROID_LOG_INFO, "OVR", formattedText);
+
+#else
+    fputs(formattedText, stdout);
+
+#endif
+
+    // Just in case.
+    OVR_UNUSED2(formattedText, debug);
+}
+
+
+//static
+void Log::SetGlobalLog(Log *log)
+{
+    OVR_GlobalLog = log;
+}
+//static
+Log* Log::GetGlobalLog()
+{
+// No global log by default?
+//    if (!OVR_GlobalLog)
+//        OVR_GlobalLog = GetDefaultLog();
+    return OVR_GlobalLog;
+}
+
+//static
+Log* Log::GetDefaultLog()
+{
+    // Create default log pointer statically so that it can be used
+    // even during startup.
+    static Log defaultLog;
+    return &defaultLog;
+}
+
+
+//-----------------------------------------------------------------------------------
+// ***** Global Logging functions
+
+#define OVR_LOG_FUNCTION_IMPL(Name)  \
+    void Log##Name(const char* fmt, ...) \
+    {                                                                    \
+        if (OVR_GlobalLog)                                               \
+        {                                                                \
+            va_list argList; va_start(argList, fmt);                     \
+            OVR_GlobalLog->LogMessageVarg(Log_##Name, fmt, argList);  \
+            va_end(argList);                                             \
+        }                                                                \
+    }
+
+OVR_LOG_FUNCTION_IMPL(Text)
+OVR_LOG_FUNCTION_IMPL(Error)
+
+#ifdef OVR_BUILD_DEBUG
+OVR_LOG_FUNCTION_IMPL(DebugText)
+OVR_LOG_FUNCTION_IMPL(Debug)
+OVR_LOG_FUNCTION_IMPL(Assert)
+#endif
+
+} // OVR
-- 
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