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Diffstat (limited to 'progs/openvg/trivial/ellipse.c')
-rw-r--r--progs/openvg/trivial/ellipse.c84
1 files changed, 84 insertions, 0 deletions
diff --git a/progs/openvg/trivial/ellipse.c b/progs/openvg/trivial/ellipse.c
new file mode 100644
index 0000000000..4c7d4904f8
--- /dev/null
+++ b/progs/openvg/trivial/ellipse.c
@@ -0,0 +1,84 @@
+#include "eglcommon.h"
+
+#include <VG/openvg.h>
+
+#include <math.h>
+#include <stdlib.h>
+
+const VGfloat white_color[4] = {1.0, 1.0, 1.0, 1.0};
+const VGfloat color[4] = {0.0, 0.0, 0.0, 1.0};
+
+VGPath path;
+VGPaint paint;
+
+static void
+init(void)
+{
+ VGfloat clearColor[] = {1.0f, 1.0f, 1.0f, 1.0f};/* white color */
+ VGfloat fillColor[] = {1.0f, 0.0f, 0.0f, 1.0f};/* red color */
+ static const VGubyte segments[4] = {VG_MOVE_TO_ABS,
+ VG_SCCWARC_TO_ABS,
+ VG_SCCWARC_TO_ABS,
+ VG_CLOSE_PATH};
+ VGfloat data[12];
+ const VGfloat cx = 0, cy=29, width=80, height=40;
+ const VGfloat hw = width * 0.5f;
+ const VGfloat hh = height * 0.5f;
+
+ data[0] = cx + hw;
+ data[1] = cy;
+ data[2] = hw;
+ data[3] = hh;
+ data[4] = 0;
+ data[5] = cx - hw;
+ data[6] = cy;
+ data[7] = hw;
+ data[8] = hh;
+ data[9] = 0;
+ data[10] = data[0];
+ data[11] = cy;
+
+ vgSetfv(VG_CLEAR_COLOR, 4, clearColor);
+ vgSeti(VG_RENDERING_QUALITY, VG_RENDERING_QUALITY_NONANTIALIASED);
+
+
+ path = vgCreatePath(VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F,
+ 1.0f, 0.0f, 0, 0, VG_PATH_CAPABILITY_ALL);
+ if (path == VG_INVALID_HANDLE) {
+ return;
+ }
+ paint = vgCreatePaint();
+ if (paint == VG_INVALID_HANDLE) {
+ vgDestroyPath(path);
+ return;
+ }
+
+ vgAppendPathData(path, 4, segments, data);
+ vgSetParameterfv(paint, VG_PAINT_COLOR, 4, fillColor);
+ vgSetParameteri( paint, VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR);
+ vgSetPaint(paint, VG_FILL_PATH);
+}
+
+/* new window size or exposure */
+static void
+reshape(int w, int h)
+{
+}
+
+static void
+draw(void)
+{
+ vgClear(0, 0, window_width(), window_height());
+ vgLoadIdentity();
+ vgTranslate(50, 21);
+ vgDrawPath(path, VG_FILL_PATH);
+ vgFlush();
+}
+
+
+int main(int argc, char **argv)
+{
+ set_window_size(100, 100);
+ return run(argc, argv, init, reshape,
+ draw, 0);
+}