Now it display a message of progress...

Makefile

@@ -4,13 +4,12 @@ CC=gcc
 # Flags!
 SDLFLAGS=$(shell sdl-config --cflags)
 
-# Comment this line and uncomment the next to get Julia fractals
+# Comment this line and uncomment the next to get debug symbols
 CFLAGS=-c -Wall -O2 $(SDLFLAGS)
-# CFLAGS=-c -Wall -O2 -DJULIA $(SDLFLAGS)
 # CFLAGS=-c -Wall -ggdb $(SDLFLAGS)
 
 # Libs!
-SDLLIBS=$(shell sdl-config --libs)
+SDLLIBS=$(shell sdl-config --libs) -lSDL_ttf
 OPENCLLIBS=-lOpenCL
 
 LIBS=-lm -lpthread $(SDLLIBS)

main.c

@@ -11,6 +11,7 @@
 #endif
 
 #include <SDL.h>
+#include <SDL_ttf.h>
 
 #define MAX_SOURCE_SIZE (0x100000)
 
@@ -23,7 +24,7 @@ int main(int argn, char **argv) {
     printf("SDL Initialized\n");
 
     // Create screen surface
-    SDL_Surface *screen;
+    SDL_Surface *screen, *message;
     int res_x = 800;
     int res_y = 600;
     int current_line = 0;
@@ -43,6 +44,29 @@ int main(int argn, char **argv) {
     if(!screen)
 	    fprintf(stderr,"Could not set video mode: %s\n",SDL_GetError());
 
+    // Set the title bar
+    SDL_WM_SetCaption("CLFract", "CLFract");
+
+    //Initialize SDL_ttf
+    if( TTF_Init() == -1 )
+    { 
+        printf("Error setting up TTF module.\n");
+        return 1; 
+    }
+
+    // Load a font
+    TTF_Font *font;
+    font = TTF_OpenFont("font.ttf", 24);
+    if (font == NULL)
+    {
+        printf("TTF_OpenFont() Failed: %s", TTF_GetError());
+        SDL_Quit();
+        return 1;
+    }
+
+    //The color of the font 
+    SDL_Color textColor = { 255, 255, 255 };
+
     // Prepare the resolution and sizes and colors...
     const int ITERATIONS = 256;
 
@@ -214,11 +238,23 @@ int main(int argn, char **argv) {
                 } 
             }
         }
+
+        // Step, iterate our zoom levels if we're doing mandelbrot or julia set
         if (julia_mode == 0)
             zoom = zoom * 0.98;
         else
             zoom -= 0.01;
 
+        // Draw message on a corner...
+        char* msg = (char *)malloc(100 * sizeof(char));
+        sprintf(msg, "Zoom level: %0.3f", zoom * 100.0);
+        message = TTF_RenderText_Solid( font, msg, textColor );
+        free(msg);
+        if (message != NULL)
+            SDL_BlitSurface(message, NULL, screen, NULL);
+
+        free(message);
+
         // Draw to the screen
         SDL_Flip(screen);
     }

mandel_classic.c

@@ -7,10 +7,10 @@
 #include <time.h>
 
 #include <SDL.h>
+#include <SDL_ttf.h>
 
 #define MAX_SOURCE_SIZE (0x100000)
 
-
 #ifdef CACHE
 int** cached_points;
 int** cached_x;
@@ -249,7 +249,6 @@ int julia_point(int res_x, int res_y, int image_x, int image_y, float zoom, int
     }
 }
 
-
 // Splits the image in pieces and calls the corresponding algorithm
 void *thread_launcher(void *arguments)
 {
@@ -302,6 +301,7 @@ void *thread_launcher(void *arguments)
     }
 }
 
+
 int get_cpus()
 {
     int number_of_cores = 0;
@@ -309,6 +309,7 @@ int get_cpus()
     return number_of_cores;
 }
 
+
 int main(int argn, char **argv) 
 {
     // Init SDL
@@ -318,7 +319,7 @@ int main(int argn, char **argv)
     printf("SDL Initialized\n");
 
     // Create screen surface
-    SDL_Surface *screen;
+    SDL_Surface *screen, *message;
     int res_x = 800;
     int res_y = 600;
     int julia_mode = 0;
@@ -373,6 +374,28 @@ int main(int argn, char **argv)
     screen = SDL_SetVideoMode(res_x, res_y, 0, SDL_DOUBLEBUF);
     if(!screen)
 	    fprintf(stderr,"Could not set video mode: %s\n",SDL_GetError());
+    // Set the title bar
+    SDL_WM_SetCaption("CLFract", "CLFract");
+
+    //Initialize SDL_ttf
+    if( TTF_Init() == -1 )
+    { 
+        printf("Error setting up TTF module.\n");
+        return 1; 
+    }
+
+    // Load a font
+    TTF_Font *font;
+    font = TTF_OpenFont("font.ttf", 24);
+    if (font == NULL)
+    {
+        printf("TTF_OpenFont() Failed: %s", TTF_GetError());
+        SDL_Quit();
+        return 1;
+    }
+
+    //The color of the font 
+    SDL_Color textColor = { 255, 255, 255 };    
 
     // Prepare the resolution and sizes and colors, threads...
     iteration_pixels = malloc(res_x * res_y * sizeof(int));
@@ -468,6 +491,16 @@ int main(int argn, char **argv)
         else
             zoom -= 0.01; 
 
+        // Draw message on a corner...
+        char* msg = (char *)malloc(100 * sizeof(char));
+        sprintf(msg, "Zoom level: %0.3f", zoom * 100.0);
+        message = TTF_RenderText_Solid( font, msg, textColor );
+        free(msg);
+        if (message != NULL)
+            SDL_BlitSurface(message, NULL, screen, NULL);
+
+        free(message);
+
         SDL_Flip(screen);
     }