fix special cases resize when parallelism is in use

examples/Makefile

@@ -38,7 +38,7 @@ all:
 	$(CC) $(SRC7) $(INCS) $(STANDARD_FLAGS) $(DEFP) $(RELEASE_FLAGS) $(LIBS2) -o $(OUT7)
 
 tiny:
-	$(CC) ../custom_backend/fbdev/fbg_fbdev.c ../src/fbgraphics.c simple_parallel_example.c $(INCS) $(STANDARD_FLAGS) $(DEFP) -fdata-sections -ffunction-sections -flto -DFBG_LIGHT -Os -lpthread -o $(OUT2) -Wl,--gc-sections,-flto
+	$(CC) ../custom_backend/fbdev/fbg_fbdev.c ../src/fbgraphics.c tiny.c $(INCS) $(STANDARD_FLAGS) -fdata-sections -ffunction-sections -flto -DWITHOUT_STB_IMAGE -DWITHOUT_JPEG -DWITHOUT_PNG -Os -o tiny -Wl,--gc-sections,-flto
 
 debug:
 	$(CC) $(SRC1) $(INCS) $(STANDARD_FLAGS) $(DEBUG_FLAGS) $(LIBS1) -o $(OUT1)

examples/tiny.c

@@ -0,0 +1,39 @@
+#include <sys/stat.h>
+#include <signal.h>
+
+#include "fbgraphics.h"
+#include "fbg_fbdev.h" // insert any backends from ../custom_backend/backend_name folder
+
+int keep_running = 1;
+
+void int_handler(int dummy) {
+    keep_running = 0;
+}
+
+int main(int argc, char* argv[]) {
+    signal(SIGINT, int_handler);
+
+    // open "/dev/fb0" by default, use fbg_fbdevSetup("/dev/fb1", 0) if you want to use another framebuffer
+    // note : fbg_fbdevInit is the linux framebuffer backend, you can use a different backend easily by including the proper header and compiling with the appropriate backend file found in ../custom_backend/backend_name
+    struct _fbg *fbg = fbg_fbdevInit();
+    if (fbg == NULL) {
+        return 0;
+    }
+
+    do {
+        fbg_clear(fbg, 0); // can also be replaced by fbg_background(fbg, 0, 0, 0);
+
+        fbg_draw(fbg);
+
+        fbg_rect(fbg, fbg->width / 2 - 8, fbg->height / 2 - 8, 16, 16, 0, 255, 0);
+
+        fbg_pixel(fbg, fbg->width / 2, fbg->height / 2, 255, 0, 0);
+
+        fbg_flip(fbg);
+
+    } while (keep_running);
+
+    fbg_close(fbg);
+
+    return 0;
+}

src/fbgraphics.c

@@ -225,6 +225,10 @@ void fbg_resize(struct _fbg *fbg, int new_width, int new_height) {
 
         fbg->size = new_size;
 
+        if (fbg->user_resize) {
+            fbg->user_resize(fbg, new_width, new_height);
+        }
+
 #ifdef FBG_PARALLEL
         if (fbg->tasks || create_fragments) {
             if (!user_fragment_start) {
@@ -242,10 +246,10 @@ void fbg_resize(struct _fbg *fbg, int new_width, int new_height) {
             fbg_createFragment(fbg, user_fragment_start, user_fragment, user_fragment_stop, parallel_tasks);
         }
 #endif
-    }
-
-    if (fbg->user_resize) {
-        fbg->user_resize(fbg, new_width, new_height);
+    } else {
+        if (fbg->user_resize) {
+            fbg->user_resize(fbg, new_width, new_height);
+        }
     }
 }