Test program swap interval toggling work.

tests/accuracy.c

@@ -37,6 +37,21 @@
 
 static int cursor_x = 0, cursor_y = 0;
 static int window_width = 640, window_height = 480;
+static int swap_interval = 1;
+
+static void set_swap_interval(GLFWwindow window, int interval)
+{
+    char title[256];
+
+    swap_interval = interval;
+    glfwSwapInterval(swap_interval);
+
+    snprintf(title, sizeof(title),
+             "Cursor Inaccuracy Detector (interval %i)",
+             swap_interval);
+
+    glfwSetWindowTitle(window, title);
+}
 
 static void window_size_callback(GLFWwindow window, int width, int height)
 {
@@ -56,6 +71,12 @@ static void cursor_position_callback(GLFWwindow window, int x, int y)
     cursor_y = y;
 }
 
+static void key_callback(GLFWwindow window, int key, int action)
+{
+    if (key == GLFW_KEY_SPACE && action == GLFW_PRESS)
+        set_swap_interval(window, 1 - swap_interval);
+}
+
 int main(void)
 {
     GLFWwindow window;
@@ -66,7 +87,7 @@ int main(void)
         exit(EXIT_FAILURE);
     }
 
-    window = glfwOpenWindow(window_width, window_height, GLFW_WINDOWED, "Cursor Inaccuracy Detector", NULL);
+    window = glfwOpenWindow(window_width, window_height, GLFW_WINDOWED, "", NULL);
     if (!window)
     {
         glfwTerminate();
@@ -75,9 +96,11 @@ int main(void)
         exit(EXIT_FAILURE);
     }
 
+    set_swap_interval(window, swap_interval);
+
     glfwSetCursorPosCallback(cursor_position_callback);
     glfwSetWindowSizeCallback(window_size_callback);
-    glfwSwapInterval(1);
+    glfwSetKeyCallback(key_callback);
 
     while (glfwGetCurrentContext())
     {

tests/tearing.c

@@ -36,15 +36,18 @@
 
 static int swap_interval;
 
-static void set_swap_interval(int value)
+static void set_swap_interval(GLFWwindow window, int interval)
 {
     char title[256];
 
-    swap_interval = value;
+    swap_interval = interval;
     glfwSwapInterval(swap_interval);
 
-    sprintf(title, "Tearing detector (interval %i)", swap_interval);
-    glfwSetWindowTitle(glfwGetCurrentContext(), title);
+    snprintf(title, sizeof(title),
+             "Tearing detector (interval %i)",
+             swap_interval);
+
+    glfwSetWindowTitle(window, title);
 }
 
 static void window_size_callback(GLFWwindow window, int width, int height)
@@ -55,7 +58,7 @@ static void window_size_callback(GLFWwindow window, int width, int height)
 static void key_callback(GLFWwindow window, int key, int action)
 {
     if (key == GLFW_KEY_SPACE && action == GLFW_PRESS)
-        set_swap_interval(!swap_interval);
+        set_swap_interval(window, 1 - swap_interval);
 }
 
 int main(void)
@@ -78,7 +81,7 @@ int main(void)
         exit(EXIT_FAILURE);
     }
 
-    set_swap_interval(1);
+    set_swap_interval(window, swap_interval);
 
     glfwSetWindowSizeCallback(window_size_callback);
     glfwSetKeyCallback(key_callback);