progs/egl/openvg/trivial/roundedrect.c

   1 #include "eglcommon.h"
   2
   3 #include <VG/openvg.h>
   4
   5 const VGfloat white_color[4] = {1.0, 1.0, 1.0, 1.0};
   6 const VGfloat color[4] = {0.9, 0.1, 0.1, 0.8};
   7
   8 VGPath path;
   9 VGPaint fill;
  10
  11
  12 static void
  13 init(void)
  14 {
  15    static const VGubyte sqrCmds[10] = {VG_MOVE_TO_ABS,
  16                                        VG_LINE_TO_ABS,
  17                                        VG_CUBIC_TO_ABS,
  18                                        VG_LINE_TO_ABS,
  19                                        VG_CUBIC_TO_ABS,
  20                                        VG_LINE_TO_ABS,
  21                                        VG_CUBIC_TO_ABS,
  22                                        VG_LINE_TO_ABS,
  23                                        VG_CUBIC_TO_ABS,
  24                                        VG_CLOSE_PATH};
  25    static const VGfloat sqrCoords[]   = {
  26       45.885571, 62.857143,
  27       154.11442, 62.857143,
  28       162.1236, 62.857143, 168.57142, 70.260744, 168.57142, 79.457144,
  29       168.57142, 123.4,
  30       168.57142, 132.5964, 162.1236,  140, 154.11442, 140,
  31       45.885571, 140,
  32       37.876394, 140, 31.428572, 132.5964, 31.428572, 123.4,
  33       31.428572, 79.457144,
  34       31.428572, 70.260744, 37.876394,62.857143, 45.885571,62.857143
  35    };
  36    path = vgCreatePath(VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F, 1, 0, 0, 0,
  37                        VG_PATH_CAPABILITY_APPEND_TO);
  38    vgAppendPathData(path, 10, sqrCmds, sqrCoords);
  39
  40    fill = vgCreatePaint();
  41    vgSetParameterfv(fill, VG_PAINT_COLOR, 4, color);
  42    vgSetPaint(fill, VG_FILL_PATH);
  43
  44    vgSetfv(VG_CLEAR_COLOR, 4, white_color);
  45    vgSetf(VG_STROKE_LINE_WIDTH, 6);
  46 }
  47
  48 /* new window size or exposure */
  49 static void
  50 reshape(int w, int h)
  51 {
  52    vgLoadIdentity();
  53 }
  54
  55 static void
  56 draw(void)
  57 {
  58    vgClear(0, 0, window_width(), window_height());
  59    vgDrawPath(path, VG_STROKE_PATH);
  60 }
  61
  62
  63 int main(int argc, char **argv)
  64 {
  65    return run(argc, argv, init, reshape,
  66               draw, 0);
  67 }