Open source Star Ruler 2 source code!

2018-07-17 14:15:37 +02:00
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+//========================================================================
+// Simple multi-window 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 creates four windows and clears each in a different color
+//
+//========================================================================
+
+#include <GLFW/glfw3.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+static const char* titles[] =
+{
+    "Foo",
+    "Bar",
+    "Baz",
+    "Quux"
+};
+
+static void error_callback(int error, const char* description)
+{
+    fprintf(stderr, "Error: %s\n", description);
+}
+
+int main(void)
+{
+    int i;
+    GLboolean running = GL_TRUE;
+    GLFWwindow* windows[4];
+
+    glfwSetErrorCallback(error_callback);
+
+    if (!glfwInit())
+        exit(EXIT_FAILURE);
+
+    glfwWindowHint(GLFW_VISIBLE, GL_FALSE);
+
+    for (i = 0;  i < 4;  i++)
+    {
+        windows[i] = glfwCreateWindow(200, 200, titles[i], NULL, NULL);
+        if (!windows[i])
+        {
+            glfwTerminate();
+            exit(EXIT_FAILURE);
+        }
+
+        glfwMakeContextCurrent(windows[i]);
+        glClearColor((GLclampf) (i & 1),
+                     (GLclampf) (i >> 1),
+                     i ? 0.f : 1.f,
+                     0.f);
+
+        glfwSetWindowPos(windows[i], 100 + (i & 1) * 300, 100 + (i >> 1) * 300);
+        glfwShowWindow(windows[i]);
+    }
+
+    while (running)
+    {
+        for (i = 0;  i < 4;  i++)
+        {
+            glfwMakeContextCurrent(windows[i]);
+            glClear(GL_COLOR_BUFFER_BIT);
+            glfwSwapBuffers(windows[i]);
+
+            if (glfwWindowShouldClose(windows[i]))
+                running = GL_FALSE;
+        }
+
+        glfwPollEvents();
+    }
+
+    glfwTerminate();
+    exit(EXIT_SUCCESS);
+}
+