init

shared/HelpersGLFW.cpp

@@ -0,0 +1,55 @@
+#include "HelpersGLFW.h"
+
+GLFWwindow* initWindow(const char* windowTitle, uint32_t& outWidth, uint32_t& outHeight)
+{
+  glfwSetErrorCallback([](int error, const char* description) { printf("GLFW Error (%i): %s\n", error, description); });
+
+  if (!glfwInit()) {
+    return nullptr;
+  }
+
+  const bool wantsWholeArea = !outWidth || !outHeight;
+
+  glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
+  glfwWindowHint(GLFW_RESIZABLE, wantsWholeArea ? GLFW_FALSE : GLFW_TRUE);
+
+  // render full screen without overlapping taskbar
+  GLFWmonitor* monitor    = glfwGetPrimaryMonitor();
+  const GLFWvidmode* mode = glfwGetVideoMode(monitor);
+
+  int x = 0;
+  int y = 0;
+  int w = mode->width;
+  int h = mode->height;
+
+  if (wantsWholeArea) {
+    glfwGetMonitorWorkarea(monitor, &x, &y, &w, &h);
+  } else {
+    w = outWidth;
+    h = outHeight;
+  }
+
+  GLFWwindow* window = glfwCreateWindow(w, h, windowTitle, nullptr, nullptr);
+
+  if (!window) {
+    glfwTerminate();
+    return nullptr;
+  }
+
+  if (wantsWholeArea) {
+    glfwSetWindowPos(window, x, y);
+  }
+
+  glfwGetWindowSize(window, &w, &h);
+
+  glfwSetKeyCallback(window, [](GLFWwindow* window, int key, int, int action, int) {
+    if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS) {
+      glfwSetWindowShouldClose(window, GLFW_TRUE);
+    }
+  });
+
+  outWidth  = (uint32_t)w;
+  outHeight = (uint32_t)h;
+
+  return window;
+}