IABSD.fr/xenocara/dist/libepoxy/test/wgl_common.c

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• Author : matthieu
  Date : 2018-05-25 06:24:59
  Hash : 9d6c7364
  Message : Update to libepoxy 1.5.2. ok aja@

• dist/libepoxy/test/wgl_common.c

• /*
   * Copyright © 2013 Intel Corporation
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice (including the next
   * paragraph) shall be included in all copies or substantial portions of the
   * Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
   * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
   * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
   * IN THE SOFTWARE.
   */
  
  #include <stdio.h>
  #include <epoxy/wgl.h>
  #include "wgl_common.h"
  
  static int (*test_callback)(HDC hdc);
  
  static void
  setup_pixel_format(HDC hdc)
  {
      PIXELFORMATDESCRIPTOR pfd = {
          sizeof(PIXELFORMATDESCRIPTOR),
          1,
          PFD_SUPPORT_OPENGL |
          PFD_DRAW_TO_WINDOW |
          PFD_DOUBLEBUFFER,
          PFD_TYPE_RGBA,
          32,
          0, 0, 0, 0, 0, 0,
          0,
          0,
          0,
          0, 0, 0, 0,
          16,
          0,
          0,
          PFD_MAIN_PLANE,
          0,
          0, 0, 0,
      };
      int pixel_format;
  
      pixel_format = ChoosePixelFormat(hdc, &pfd);
      if (!pixel_format) {
          fputs("ChoosePixelFormat failed.\n", stderr);
          exit(1);
      }
  
      if (SetPixelFormat(hdc, pixel_format, &pfd) != TRUE) {
          fputs("SetPixelFormat() failed.\n", stderr);
          exit(1);
      }
  }
  
  static LRESULT CALLBACK
  window_proc(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam)
  {
      HDC hdc = GetDC(hwnd);
      int ret;
  
      switch (message) {
      case WM_CREATE:
          setup_pixel_format(hdc);
          ret = test_callback(hdc);
          ReleaseDC(hwnd, hdc);
          exit(ret);
          return 0;
      default:
          return DefWindowProc(hwnd, message, wparam, lparam);
      }
  }
  
  void
  make_window_and_test(int (*callback)(HDC hdc))
  {
      const char *class_name = "epoxy";
      const char *window_name = "epoxy";
      int width = 150;
      int height = 150;
      HWND hwnd;
      HINSTANCE hcurrentinst = NULL;
      WNDCLASS window_class;
      MSG msg;
  
      test_callback = callback;
  
      memset(&window_class, 0, sizeof(window_class));
      window_class.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW;
      window_class.lpfnWndProc = window_proc;
      window_class.cbClsExtra = 0;
      window_class.cbWndExtra = 0;
      window_class.hInstance = hcurrentinst;
      window_class.hIcon = LoadIcon(NULL, IDI_APPLICATION);
      window_class.hCursor = LoadCursor(NULL, IDC_ARROW);
      window_class.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
      window_class.lpszMenuName = NULL;
      window_class.lpszClassName = class_name;
      if (!RegisterClass(&window_class)) {
          fputs("Failed to register window class\n", stderr);
          exit(1);
      }
  
      /* create window */
      hwnd = CreateWindow(class_name, window_name,
                          WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN | WS_CLIPSIBLINGS,
                          0, 0, width, height,
                          NULL, NULL, hcurrentinst, NULL);
  
      ShowWindow(hwnd, SW_SHOWDEFAULT);
      UpdateWindow(hwnd);
  
      while (GetMessage(&msg, NULL, 0, 0)) {
          TranslateMessage(&msg);
          DispatchMessage(&msg);
      }
  }