From 64868f5be99a68c567972a4edf80185c0ebb84ca Mon Sep 17 00:00:00 2001
From: cyberwarriorx <cyberwarriorx@users.sf.net>
Date: Thu, 13 Apr 2006 19:35:46 +0000
Subject: [PATCH] -Adding Yabause's logging system(since it's more functionally
 complete)

---
 desmume/src/debug.c | 160 ++++++++++++++++++++++++++++++++++++++++++++
 desmume/src/debug.h |  36 ++++++++++
 2 files changed, 196 insertions(+)
 create mode 100644 desmume/src/debug.c
 create mode 100644 desmume/src/debug.h

diff --git a/desmume/src/debug.c b/desmume/src/debug.c
new file mode 100644
index 000000000..32825c770
--- /dev/null
+++ b/desmume/src/debug.c
@@ -0,0 +1,160 @@
+/*  Copyright 2005 Guillaume Duhamel
+
+    This file is part of DeSmuME.
+
+    DeSmuME is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    DeSmuME is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with DeSmuME; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#include "debug.h"
+
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+
+//////////////////////////////////////////////////////////////////////////////
+
+Debug * DebugInit(const char * n, DebugOutType t, char * s) {
+	Debug * d;
+
+        if ((d = (Debug *) malloc(sizeof(Debug))) == NULL)
+           return NULL;
+
+	d->output_type = t;
+
+        if ((d->name = strdup(n)) == NULL)
+        {
+           free(d);
+           return NULL;
+        }
+
+	switch(t) {
+	case DEBUG_STREAM:
+                d->output.stream = fopen(s, "w");
+		break;
+	case DEBUG_STRING:
+		d->output.string = s;
+		break;
+	case DEBUG_STDOUT:
+		d->output.stream = stdout;
+		break;
+	case DEBUG_STDERR:
+		d->output.stream = stderr;
+		break;
+	}
+
+	return d;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+void DebugDeInit(Debug * d) {
+        if (d == NULL)
+           return;
+
+	switch(d->output_type) {
+	case DEBUG_STREAM:
+                if (d->output.stream)
+                   fclose(d->output.stream);
+		break;
+	case DEBUG_STRING:
+	case DEBUG_STDOUT:
+	case DEBUG_STDERR:
+		break;
+	}
+        if (d->name)
+           free(d->name);
+	free(d);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+void DebugChangeOutput(Debug * d, DebugOutType t, char * s) {
+	if (t != d->output_type) {
+		if (d->output_type == DEBUG_STREAM)
+                {
+                   if (d->output.stream)
+			fclose(d->output.stream);
+                }
+		d->output_type = t;
+	}
+	switch(t) {
+	case DEBUG_STREAM:
+		d->output.stream = fopen(s, "w");
+		break;
+	case DEBUG_STRING:
+		d->output.string = s;
+		break;
+	case DEBUG_STDOUT:
+		d->output.stream = stdout;
+		break;
+	case DEBUG_STDERR:
+		d->output.stream = stderr;
+		break;
+	}
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+void DebugPrintf(Debug * d, const char * file, u32 line, const char * format, ...) {
+	va_list l;
+
+        if (d == NULL)
+           return;
+
+	va_start(l, format);
+
+	switch(d->output_type) {
+	case DEBUG_STDOUT:
+	case DEBUG_STDERR:
+	case DEBUG_STREAM:
+                if (d->output.stream == NULL)
+                   break;
+		fprintf(d->output.stream, "%s (%s:%ld): ", d->name, file, line);
+		vfprintf(d->output.stream, format, l);
+		break;
+	case DEBUG_STRING:
+		{
+			int i;
+                        if (d->output.string == NULL)
+                           break;
+
+			i = sprintf(d->output.string, "%s (%s:%ld): ", d->name, file, line);
+			vsprintf(d->output.string + i, format, l);
+		}
+		break;
+	}
+
+	va_end(l);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+Debug * MainLog;
+
+//////////////////////////////////////////////////////////////////////////////
+
+void LogStart(void) {
+        MainLog = DebugInit("main", DEBUG_STDOUT, NULL);
+//        MainLog = DebugInit("main", DEBUG_STREAM, "stdout.txt");
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+void LogStop(void) {
+	DebugDeInit(MainLog);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
diff --git a/desmume/src/debug.h b/desmume/src/debug.h
new file mode 100644
index 000000000..ab11c00a6
--- /dev/null
+++ b/desmume/src/debug.h
@@ -0,0 +1,36 @@
+#ifndef DEBUG_H
+#define DEBUG_H
+
+#include "core.h"
+#include <stdio.h>
+
+typedef enum { DEBUG_STRING, DEBUG_STREAM , DEBUG_STDOUT, DEBUG_STDERR } DebugOutType;
+
+typedef struct {
+	DebugOutType output_type;
+	union {
+		FILE * stream;
+		char * string;
+	} output;
+	char * name;
+} Debug;
+
+Debug * DebugInit(const char *, DebugOutType, char *);
+void DebugDeInit(Debug *);
+
+void DebugChangeOutput(Debug *, DebugOutType, char *);
+
+void DebugPrintf(Debug *, const char *, u32, const char *, ...);
+
+extern Debug * MainLog;
+
+void LogStart(void);
+void LogStop(void);
+
+#ifdef DEBUG
+#define LOG(f, r...) DebugPrintf(MainLog, __FILE__, __LINE__, f, ## r)
+#else
+#define LOG(f, r...)
+#endif
+
+#endif