src/client/window.c

   1 #include <stdio.h>
   2 #include <GL/glew.h>
   3 #include <GL/gl.h>
   4 #include "client/client_config.h"
   5 #include "client/debug_menu.h"
   6 #include "client/game.h"
   7 #include "client/gl_debug.h"
   8 #include "client/gui.h"
   9 #include "client/input.h"
  10 #include "client/window.h"
  11
  12 struct Window window;
  13
  14 static int small_x, small_y, small_width, small_height;
  15
  16 static void update_projection()
  17 {
  18         mat4x4_perspective(window.projection,
  19                 window.fov / 180.0f * M_PI,
  20                 (float) window.width / (float) window.height,
  21                 0.01f, client_config.view_distance + 28.0f);
  22 }
  23
  24 static void framebuffer_size_callback(__attribute__((unused)) GLFWwindow *handle, int width, int height)
  25 {
  26         glViewport(0, 0, width, height); GL_DEBUG
  27         window.width = width;
  28         window.height = height;
  29
  30         if (!window.fullscreen) {
  31                 small_width = width;
  32                 small_height = height;
  33         }
  34
  35         update_projection();
  36         gui_update_projection();
  37 }
  38
  39 static void cursor_pos_callback(__attribute__((unused)) GLFWwindow *handle, double x, double y)
  40 {
  41         input_cursor(x, y);
  42 }
  43
  44 static void window_pos_callback(__attribute__((unused)) GLFWwindow *handle, int x, int y)
  45 {
  46         if (!window.fullscreen) {
  47                 small_x = x;
  48                 small_y = y;
  49         }
  50 }
  51
  52 void window_enter_fullscreen()
  53 {
  54         window.fullscreen = true;
  55         GLFWmonitor *monitor = glfwGetPrimaryMonitor();
  56         const GLFWvidmode *vidmode = glfwGetVideoMode(monitor);
  57         glfwSetWindowMonitor(window.handle, monitor, 0, 0, vidmode->width, vidmode->height, 0);
  58
  59         debug_menu_changed(ENTRY_FULLSCREEN);
  60 }
  61
  62 void window_exit_fullscreen()
  63 {
  64         window.fullscreen = false;
  65         glfwSetWindowMonitor(window.handle, NULL, small_x, small_y, small_width, small_height, 0);
  66
  67         debug_menu_changed(ENTRY_FULLSCREEN);
  68 }
  69
  70 bool window_init()
  71 {
  72         if(!glfwInit()) {
  73                 fprintf(stderr, "[error] failed to initialize GLFW\n");
  74                 return false;
  75         }
  76
  77         glfwWindowHint(GLFW_SAMPLES, client_config.antialiasing);
  78         glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
  79         glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
  80         glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
  81
  82         window.width = 1250;
  83         window.height = 750;
  84         window.handle = glfwCreateWindow(window.width, window.height, "Dragonblocks", NULL, NULL);
  85         window.fullscreen = false;
  86         window.fov = 86.1f;
  87         update_projection();
  88
  89         small_width = window.width;
  90         small_height = window.height;
  91
  92         if (!window.handle) {
  93                 fprintf(stderr, "[error] failed to create window\n");
  94                 glfwTerminate();
  95                 return false;
  96         }
  97
  98         glfwMakeContextCurrent(window.handle);
  99
 100         if (!client_config.vsync)
 101                 glfwSwapInterval(0);
 102
 103         if (glewInit() != GLEW_OK) {
 104                 fprintf(stderr, "[error] failed to initialize GLEW\n");
 105                 return false;
 106         }
 107
 108         glfwSetFramebufferSizeCallback(window.handle, &framebuffer_size_callback);
 109         glfwSetCursorPosCallback(window.handle, &cursor_pos_callback);
 110         glfwSetWindowPosCallback(window.handle, &window_pos_callback);
 111
 112         return true;
 113 }