Initial commit

common/logger/ILogger.h

@@ -0,0 +1,32 @@
+#pragma once
+#include <stdarg.h>
+
+enum class LogLevel
+{
+    Off,
+
+    Fatal,
+    Error,
+    Warning,
+    Info,
+    Debug,
+    Trace,
+
+    All
+};
+
+class ILogger
+{
+public:
+    virtual ~ILogger() { }
+
+    void Log(LogLevel level, const char* fmt, ...)
+    {
+        va_list vlist;
+        va_start(vlist, fmt);
+        LogV(level, fmt, vlist);
+        va_end(vlist);
+    }
+
+    virtual void LogV(LogLevel level, const char* fmt, va_list vlist) = 0;
+};

common/logger/IOutputStream.h

@@ -0,0 +1,10 @@
+#pragma once
+
+class IOutputStream
+{
+public:
+    virtual ~IOutputStream() { }
+
+    virtual void Write(const char* str) = 0;
+    virtual void Flush() = 0;
+};

common/logger/NullLogger.h

@@ -0,0 +1,8 @@
+#pragma once
+#include "ILogger.h"
+
+class NullLogger : public ILogger
+{
+public:
+    void LogV(LogLevel level, const char* fmt, va_list vlist) override { }
+};

common/logger/NullOutputStream.h

@@ -0,0 +1,9 @@
+#pragma once
+#include "IOutputStream.h"
+
+class NullOutputStream : public IOutputStream
+{
+public:
+    void Write(const char* str) { }
+    void Flush() { }
+};

common/logger/PicoAgbAdapterOutputStream.cpp

@@ -0,0 +1,26 @@
+#include <nds.h>
+#include "picoAgbAdapter.h"
+#include "PicoAgbAdapterOutputStream.h"
+
+void PicoAgbAdapterOutputStream::Write(const char* str)
+{
+    char c;
+    vu16* ring = PICO_AGB_PRINT_ARM9_RING;
+    u32 writePtr = PICO_AGB_PRINT_ARM9_WRITE_PTR;
+    u32 readPtr = PICO_AGB_PRINT_ARM9_READ_PTR;
+    while ((c = *str++) != 0)
+    {
+        u32 newWritePtr = (writePtr + 1) & (PICO_AGB_PRINT_RING_LENGTH - 1);
+        while (newWritePtr == readPtr)
+        {
+            PICO_AGB_PRINT_ARM9_WRITE_PTR = writePtr;
+            readPtr = PICO_AGB_PRINT_ARM9_READ_PTR;
+        }
+        if (writePtr & 1)
+            ring[writePtr >> 1] = (ring[writePtr >> 1] & 0xFF) | (c << 8);
+        else
+            ring[writePtr >> 1] = (ring[writePtr >> 1] & 0xFF00) | c;
+        writePtr = newWritePtr;
+    }
+    PICO_AGB_PRINT_ARM9_WRITE_PTR = writePtr;
+}

common/logger/PicoAgbAdapterOutputStream.h

@@ -0,0 +1,11 @@
+#pragma once
+#include "IOutputStream.h"
+
+class PicoAgbAdapterOutputStream : public IOutputStream
+{
+public:
+    PicoAgbAdapterOutputStream() { }
+
+    void Write(const char* str) override;    
+    void Flush() override { }
+};