Open source Star Ruler 2 source code!

2018-07-17 14:15:37 +02:00
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+//========================================================================
+// Window re-opener (open/close stress test)
+// Copyright (c) Camilla Berglund <elmindreda@elmindreda.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+//
+// This test came about as the result of bug #1262773
+//
+// It closes and re-opens the GLFW window every five seconds, alternating
+// between windowed and fullscreen mode
+//
+// It also times and logs opening and closing actions and attempts to separate
+// user initiated window closing from its own
+//
+//========================================================================
+
+#include <GLFW/glfw3.h>
+
+#include <time.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+static void error_callback(int error, const char* description)
+{
+    fprintf(stderr, "Error: %s\n", description);
+}
+
+static void framebuffer_size_callback(GLFWwindow* window, int width, int height)
+{
+    glViewport(0, 0, width, height);
+}
+
+static void window_close_callback(GLFWwindow* window)
+{
+    printf("Close callback triggered\n");
+}
+
+static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
+{
+    if (action != GLFW_PRESS)
+        return;
+
+    switch (key)
+    {
+        case GLFW_KEY_Q:
+        case GLFW_KEY_ESCAPE:
+            glfwSetWindowShouldClose(window, GL_TRUE);
+            break;
+    }
+}
+
+static GLFWwindow* open_window(int width, int height, GLFWmonitor* monitor)
+{
+    double base;
+    GLFWwindow* window;
+
+    base = glfwGetTime();
+
+    window = glfwCreateWindow(width, height, "Window Re-opener", monitor, NULL);
+    if (!window)
+        return NULL;
+
+    glfwMakeContextCurrent(window);
+    glfwSwapInterval(1);
+
+    glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
+    glfwSetWindowCloseCallback(window, window_close_callback);
+    glfwSetKeyCallback(window, key_callback);
+
+    if (monitor)
+    {
+        printf("Opening full screen window on monitor %s took %0.3f seconds\n",
+               glfwGetMonitorName(monitor),
+               glfwGetTime() - base);
+    }
+    else
+    {
+        printf("Opening regular window took %0.3f seconds\n",
+               glfwGetTime() - base);
+    }
+
+    return window;
+}
+
+static void close_window(GLFWwindow* window)
+{
+    double base = glfwGetTime();
+    glfwDestroyWindow(window);
+    printf("Closing window took %0.3f seconds\n", glfwGetTime() - base);
+}
+
+int main(int argc, char** argv)
+{
+    int count = 0;
+    GLFWwindow* window;
+
+    srand((unsigned int) time(NULL));
+
+    glfwSetErrorCallback(error_callback);
+
+    if (!glfwInit())
+        exit(EXIT_FAILURE);
+
+    for (;;)
+    {
+        GLFWmonitor* monitor = NULL;
+
+        if (count & 1)
+        {
+            int monitorCount;
+            GLFWmonitor** monitors = glfwGetMonitors(&monitorCount);
+            monitor = monitors[rand() % monitorCount];
+        }
+
+        window = open_window(640, 480, monitor);
+        if (!window)
+        {
+            glfwTerminate();
+            exit(EXIT_FAILURE);
+        }
+
+        glMatrixMode(GL_PROJECTION);
+        glOrtho(-1.f, 1.f, -1.f, 1.f, 1.f, -1.f);
+        glMatrixMode(GL_MODELVIEW);
+
+        glfwSetTime(0.0);
+
+        while (glfwGetTime() < 5.0)
+        {
+            glClear(GL_COLOR_BUFFER_BIT);
+
+            glPushMatrix();
+            glRotatef((GLfloat) glfwGetTime() * 100.f, 0.f, 0.f, 1.f);
+            glRectf(-0.5f, -0.5f, 1.f, 1.f);
+            glPopMatrix();
+
+            glfwSwapBuffers(window);
+            glfwPollEvents();
+
+            if (glfwWindowShouldClose(window))
+            {
+                close_window(window);
+                printf("User closed window\n");
+
+                glfwTerminate();
+                exit(EXIT_SUCCESS);
+            }
+        }
+
+        printf("Closing window\n");
+        close_window(window);
+
+        count++;
+    }
+
+    glfwTerminate();
+}
+