/opengles/redbook/cube.c

http://ftk.googlecode.com/ · C · 92 lines · 45 code · 6 blank · 41 comment · 1 complexity · 63899b7b313c3a1717ef5992b400c2b0 MD5 · raw file

  1. /*
  2. * License Applicability. Except to the extent portions of this file are
  3. * made subject to an alternative license as permitted in the SGI Free
  4. * Software License B, Version 1.1 (the "License"), the contents of this
  5. * file are subject only to the provisions of the License. You may not use
  6. * this file except in compliance with the License. You may obtain a copy
  7. * of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
  8. * Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
  9. *
  10. * http://oss.sgi.com/projects/FreeB
  11. *
  12. * Note that, as provided in the License, the Software is distributed on an
  13. * "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
  14. * DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
  15. * CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
  16. * PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
  17. *
  18. * Original Code. The Original Code is: OpenGL Sample Implementation,
  19. * Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
  20. * Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
  21. * Copyright in any portions created by third parties is as indicated
  22. * elsewhere herein. All Rights Reserved.
  23. *
  24. * Additional Notice Provisions: The application programming interfaces
  25. * established by SGI in conjunction with the Original Code are The
  26. * OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
  27. * April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
  28. * 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
  29. * Window System(R) (Version 1.3), released October 19, 1998. This software
  30. * was created using the OpenGL(R) version 1.2.1 Sample Implementation
  31. * published by SGI, but has not been independently verified as being
  32. * compliant with the OpenGL(R) version 1.2.1 Specification.
  33. *
  34. */
  35. /*
  36. * cube.c
  37. * This program demonstrates a single modeling transformation,
  38. * glScalef() and a single viewing transformation, gluLookAt().
  39. * A wireframe cube is rendered.
  40. */
  41. #include <stdlib.h>
  42. #include "ug.h"
  43. void init(void)
  44. {
  45. glClearColor (0.0, 0.0, 0.0, 0.0);
  46. glShadeModel (GL_FLAT);
  47. }
  48. void display(UGWindow uwin)
  49. {
  50. glClear (GL_COLOR_BUFFER_BIT);
  51. glColor4f (1.0, 1.0, 1.0, 1.0);
  52. glLoadIdentity (); /* clear the matrix */
  53. /* viewing transformation */
  54. ugluLookAtf(0.0, 0.0, 5.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
  55. glScalef (1.0, 2.0, 1.0); /* modeling transformation */
  56. ugWireCubef(1.0);
  57. glFlush();
  58. ugSwapBuffers(uwin);
  59. }
  60. void reshape (UGWindow uwin, int w, int h)
  61. {
  62. glViewport (0, 0, (GLsizei) w, (GLsizei) h);
  63. glMatrixMode (GL_PROJECTION);
  64. glLoadIdentity ();
  65. glFrustumf(-1.0, 1.0, -1.0, 1.0, 1.5, 20.0);
  66. glMatrixMode (GL_MODELVIEW);
  67. }
  68. void keyboard(UGWindow uwin, int key, int x, int y)
  69. {
  70. switch (key) {
  71. case 27:
  72. exit(0);
  73. break;
  74. }
  75. }
  76. int main(int argc, char** argv)
  77. {
  78. UGCtx ug = ugInit();
  79. UGWindow uwin = ugCreateWindow (ug, "", argv[0], 500, 500, 100, 100);
  80. init ();
  81. ugDisplayFunc(uwin, display);
  82. ugReshapeFunc(uwin, reshape);
  83. ugKeyboardFunc(uwin, keyboard);
  84. ugMainLoop(ug);
  85. return 0;
  86. }