Add display monitor improvements (#29)

src/display_monitor.cc

@@ -10,11 +10,14 @@
 #include "geometry.h"
 #include "interface.h"
 #include "memory.h"
+#include "sfall_config.h"
 #include "text_font.h"
 #include "window_manager.h"
 
 #include <string.h>
 
+#include <fstream>
+
 // The maximum number of lines display monitor can hold. Once this value
 // is reached earlier messages are thrown away.
 #define DISPLAY_MONITOR_LINES_CAPACITY (100)
@@ -40,6 +43,12 @@ static void displayMonitorScrollUpOnMouseEnter(int btn, int keyCode);
 static void displayMonitorScrollDownOnMouseEnter(int btn, int keyCode);
 static void displayMonitorOnMouseExit(int btn, int keyCode);
 
+static void consoleFileInit();
+static void consoleFileReset();
+static void consoleFileExit();
+static void consoleFileAddMessage(const char* message);
+static void consoleFileFlush();
+
 // 0x51850C
 static bool gDisplayMonitorInitialized = false;
 
@@ -86,6 +95,9 @@ static int _disp_start;
 // 0x56FB58
 static unsigned int gDisplayMonitorLastBeepTimestamp;
 
+static std::ofstream gConsoleFileStream;
+static int gConsoleFilePrintCount = 0;
+
 // 0x431610
 int displayMonitorInit()
 {
@@ -176,6 +188,9 @@ int displayMonitorInit()
         _disp_curr = 0;
 
         displayMonitorRefresh();
+
+        // SFALL
+        consoleFileInit();
     }
 
     return 0;
@@ -192,6 +207,9 @@ int displayMonitorReset()
         _disp_start = 0;
         _disp_curr = 0;
         displayMonitorRefresh();
+
+        // SFALL
+        consoleFileReset();
     }
     return 0;
 }
@@ -200,6 +218,9 @@ int displayMonitorReset()
 void displayMonitorExit()
 {
     if (gDisplayMonitorInitialized) {
+        // SFALL
+        consoleFileExit();
+
         internal_free(gDisplayMonitorBackgroundFrmData);
         gDisplayMonitorInitialized = false;
     }
@@ -212,6 +233,9 @@ void displayMonitorAddMessage(char* str)
         return;
     }
 
+    // SFALL
+    consoleFileAddMessage(str);
+
     int oldFont = fontGetCurrent();
     fontSetCurrent(DISPLAY_MONITOR_FONT);
 
@@ -389,3 +413,51 @@ void displayMonitorEnable()
         gDisplayMonitorEnabled = true;
     }
 }
+
+static void consoleFileInit()
+{
+    char* consoleFilePath;
+    configGetString(&gSfallConfig, SFALL_CONFIG_MISC_KEY, SFALL_CONFIG_CONSOLE_OUTPUT_FILE_KEY, &consoleFilePath);
+    if (consoleFilePath != NULL && *consoleFilePath == '\0') {
+        consoleFilePath = NULL;
+    }
+
+    if (consoleFilePath != NULL) {
+        gConsoleFileStream.open(consoleFilePath);
+    }
+}
+
+static void consoleFileReset()
+{
+    if (gConsoleFileStream.is_open()) {
+        gConsoleFilePrintCount = 0;
+        gConsoleFileStream.flush();
+    }
+}
+
+static void consoleFileExit()
+{
+    if (gConsoleFileStream.is_open()) {
+        gConsoleFileStream.close();
+    }
+}
+
+static void consoleFileAddMessage(const char* message)
+{
+    if (gConsoleFileStream.is_open()) {
+        gConsoleFileStream << message << '\n';
+
+        gConsoleFilePrintCount++;
+        if (gConsoleFilePrintCount >= 20) {
+            consoleFileFlush();
+        }
+    }
+}
+
+static void consoleFileFlush()
+{
+    if (gConsoleFileStream.is_open()) {
+        gConsoleFilePrintCount = 0;
+        gConsoleFileStream.flush();
+    }
+}

src/sfall_config.cc

@@ -39,6 +39,7 @@ bool sfallConfigInit(int argc, char** argv)
     configSetBool(&gSfallConfig, SFALL_CONFIG_MISC_KEY, SFALL_CONFIG_REMOVE_CRITICALS_TIME_LIMITS_KEY, false);
     configSetString(&gSfallConfig, SFALL_CONFIG_MISC_KEY, SFALL_CONFIG_BOOKS_FILE_KEY, "");
     configSetString(&gSfallConfig, SFALL_CONFIG_MISC_KEY, SFALL_CONFIG_ELEVATORS_FILE_KEY, "");
+    configSetString(&gSfallConfig, SFALL_CONFIG_MISC_KEY, SFALL_CONFIG_CONSOLE_OUTPUT_FILE_KEY, "");
 
     char path[COMPAT_MAX_PATH];
     char* executable = argv[0];

src/sfall_config.h

@@ -27,6 +27,7 @@
 #define SFALL_CONFIG_REMOVE_CRITICALS_TIME_LIMITS_KEY "RemoveCriticalTimelimits"
 #define SFALL_CONFIG_BOOKS_FILE_KEY "BooksFile"
 #define SFALL_CONFIG_ELEVATORS_FILE_KEY "ElevatorsFile"
+#define SFALL_CONFIG_CONSOLE_OUTPUT_FILE_KEY "ConsoleOutputPath"
 
 extern bool gSfallConfigInitialized;
 extern Config gSfallConfig;