progs/openvg/trivial/path3.c

   1 #include "eglcommon.h"
   2
   3 #include <VG/openvg.h>
   4 #include <VG/vgu.h>
   5 #include <stdio.h>
   6 #include <math.h>
   7 #include <stdlib.h>
   8
   9 static void
  10 init(void)
  11 {
  12 }
  13
  14 /* new window size or exposure */
  15 static void
  16 reshape(int w, int h)
  17 {
  18 }
  19
  20
  21 static void
  22 draw(void)
  23 {
  24     VGint WINDSIZEX = window_width();
  25     VGint WINDSIZEY = window_height();
  26     VGPath path;
  27     VGPaint paint;
  28
  29     VGfloat clearColor[] = {1.0f, 1.0f, 1.0f, 0.0f};/* white color */
  30     VGfloat fillColor[] = {1.0f, 0.0f, 0.0f, 1.0f};/* red color */
  31
  32 #if 1
  33     VGubyte commands[4] = {VG_MOVE_TO_ABS, VG_LCWARC_TO_ABS, VG_SCWARC_TO_ABS, VG_CLOSE_PATH};
  34 #else
  35     VGubyte commands[4] = {VG_MOVE_TO_ABS, VG_SCCWARC_TO_ABS, VG_LCCWARC_TO_ABS,VG_CLOSE_PATH};
  36 #endif
  37     VGfloat coords[] = {32.0f,   0.0f,
  38                         -32.0f, -32.0f, 0.0f, 64.0f, 32.0f,
  39                         -32.0f, -32.0f, 0.0f, 32.0f, 0.0f};
  40
  41
  42     vgSetfv(VG_CLEAR_COLOR, 4, clearColor);
  43     vgClear(0, 0, WINDSIZEX, WINDSIZEY);
  44     vgSeti(VG_RENDERING_QUALITY, VG_RENDERING_QUALITY_NONANTIALIASED);
  45
  46     vgSeti(VG_MATRIX_MODE, VG_MATRIX_PATH_USER_TO_SURFACE);
  47     vgLoadIdentity();
  48     //vgTranslate(32.0f, 32.0f);
  49
  50     path = vgCreatePath( VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F,
  51                          1.0f, 0.0f, 0, 0, VG_PATH_CAPABILITY_ALL );
  52     if ( path == VG_INVALID_HANDLE ) {
  53         return;
  54     }
  55     paint = vgCreatePaint();
  56     if ( paint == VG_INVALID_HANDLE ) {
  57         vgDestroyPath(path);
  58         return;
  59     }
  60
  61     vgAppendPathData(path, 4, commands, coords);
  62     vgSetParameterfv(paint, VG_PAINT_COLOR, 4, fillColor);
  63     vgSetParameteri( paint, VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR);
  64     vgSetPaint(paint, VG_FILL_PATH);
  65     vgDrawPath(path, VG_FILL_PATH);
  66
  67     vgDestroyPath(path);
  68     vgDestroyPaint(paint);
  69 }
  70
  71
  72 int main(int argc, char **argv)
  73 {
  74     set_window_size(64, 64);
  75     return run(argc, argv, init, reshape,
  76                draw, 0);
  77 }