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Diffstat (limited to 'progs/egl/openvg/trivial/dash.c')
-rw-r--r--progs/egl/openvg/trivial/dash.c95
1 files changed, 95 insertions, 0 deletions
diff --git a/progs/egl/openvg/trivial/dash.c b/progs/egl/openvg/trivial/dash.c
new file mode 100644
index 00000000000..2e84ddbd4ea
--- /dev/null
+++ b/progs/egl/openvg/trivial/dash.c
@@ -0,0 +1,95 @@
+#include "eglcommon.h"
+
+#include <VG/openvg.h>
+#include <X11/keysym.h>
+#include <stdio.h>
+
+const VGfloat white_color[4] = {1.0, 1.0, 1.0, 1.0};
+const VGfloat color[4] = {0.4, 0.1, 1.0, 1.0};
+
+VGPath path;
+VGPaint fill;
+
+VGint cap_style = VG_CAP_BUTT;
+
+static void
+init(void)
+{
+ static const VGubyte cmds[] = {VG_MOVE_TO_ABS,
+ VG_LINE_TO_ABS,
+ VG_LINE_TO_ABS
+ };
+#if 1
+ static const VGfloat coords[] = {100, 100, 150, 100,
+ 150, 200
+ };
+#else
+ static const VGfloat coords[] = {100, 20, 100, 220,
+ };
+#endif
+ VGfloat dash_pattern[2] = { 20.f, 20.f };
+ path = vgCreatePath(VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F, 1, 0, 0, 0,
+ VG_PATH_CAPABILITY_APPEND_TO);
+ vgAppendPathData(path, 3, cmds, coords);
+
+ fill = vgCreatePaint();
+ vgSetParameterfv(fill, VG_PAINT_COLOR, 4, color);
+ vgSetPaint(fill, VG_FILL_PATH);
+
+ vgSetfv(VG_CLEAR_COLOR, 4, white_color);
+ vgSetf(VG_STROKE_LINE_WIDTH, 20);
+ vgSeti(VG_STROKE_CAP_STYLE, cap_style);
+ vgSeti(VG_STROKE_JOIN_STYLE, VG_JOIN_ROUND);
+ vgSetfv(VG_STROKE_DASH_PATTERN, 2, dash_pattern);
+ vgSetf(VG_STROKE_DASH_PHASE, 0.0f);
+}
+
+/* new window size or exposure */
+static void
+reshape(int w, int h)
+{
+ vgLoadIdentity();
+}
+
+static void
+draw(void)
+{
+ vgClear(0, 0, window_width(), window_height());
+ vgDrawPath(path, VG_STROKE_PATH);
+
+ vgFlush();
+}
+
+static int key_press(unsigned key)
+{
+ switch(key) {
+ case XK_c:
+ case XK_C:
+ ++cap_style;
+ if (cap_style > VG_CAP_SQUARE)
+ cap_style = VG_CAP_BUTT;
+ switch(cap_style) {
+ case VG_CAP_BUTT:
+ fprintf(stderr, "Cap style 'butt'\n");
+ break;
+ case VG_CAP_ROUND:
+ fprintf(stderr, "Cap style 'round'\n");
+ break;
+ case VG_CAP_SQUARE:
+ fprintf(stderr, "Cap style 'square'\n");
+ break;
+ }
+ vgSeti(VG_STROKE_CAP_STYLE, cap_style);
+ break;
+ default:
+ break;
+ }
+
+ return VG_TRUE;
+}
+
+int main(int argc, char **argv)
+{
+ return run(argc, argv, init, reshape,
+ draw, key_press);
+}