progs/egl/openvg/lion.c

   1 #include <VG/openvg.h>
   2 #include <EGL/egl.h>
   3
   4 #include "lion-render.h"
   5 #include "eglut.h"
   6
   7 static VGint width, height;
   8 struct lion *lion = 0;
   9 VGfloat angle = 0;
  10
  11 static void
  12 draw(void)
  13 {
  14    vgClear(0, 0, width, height);
  15
  16    vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE);
  17    vgLoadIdentity();
  18    vgTranslate(width/2, height/2);
  19    vgRotate(angle);
  20    vgTranslate(-width/2, -height/2);
  21
  22    lion_render(lion);
  23
  24    ++angle;
  25    eglutPostRedisplay();
  26 }
  27
  28
  29 /* new window size or exposure */
  30 static void
  31 reshape(int w, int h)
  32 {
  33    width  = w;
  34    height = h;
  35 }
  36
  37
  38 static void
  39 init(void)
  40 {
  41    float clear_color[4] = {1.0, 1.0, 1.0, 1.0};
  42    vgSetfv(VG_CLEAR_COLOR, 4, clear_color);
  43
  44    lion = lion_create();
  45 }
  46
  47
  48 int
  49 main(int argc, char *argv[])
  50 {
  51    eglutInitWindowSize(350, 450);
  52    eglutInitAPIMask(EGLUT_OPENVG_BIT);
  53    eglutInit(argc, argv);
  54
  55    eglutCreateWindow("Lion Example");
  56
  57    eglutReshapeFunc(reshape);
  58    eglutDisplayFunc(draw);
  59
  60    init();
  61
  62    eglutMainLoop();
  63
  64    return 0;
  65 }