1 files changed, 207 insertions, 0 deletions
diff --git a/progs/egl/openvg/trivial/stroke2.c b/progs/egl/openvg/trivial/stroke2.c
new file mode 100644
index 0000000..ce950c1
--- /dev/null
+++ b/progs/egl/openvg/trivial/stroke2.c
@@ -0,0 +1,207 @@
+#include "eglcommon.h"
+
+#include <VG/openvg.h>
+#include <X11/keysym.h>
+#include <stdio.h>
+
+VGPaint stroke;
+VGPath target;
+VGPath lines;
+
+VGfloat xform[9];
+VGfloat color1[4];
+VGfloat color2[4];
+VGfloat bgCol[4];
+
+static void
+init(void)
+{
+    VGubyte lineCmds[6];
+    VGfloat lineCoords[8];
+    VGfloat arcCoords[5];
+    VGubyte sccCmd[1];
+    VGubyte scCmd[1];
+    VGubyte lccCmd[1];
+    VGubyte lcCmd[1];
+    VGubyte moveCmd[1];
+    VGfloat moveCoords[2];
+    VGint i;
+
+    bgCol[0] = 1.0f;
+    bgCol[1] = 1.0f;
+    bgCol[2] = 1.0f;
+    bgCol[3] = 1.0f;
+
+    vgSetfv(VG_CLEAR_COLOR, 4, bgCol);
+    vgSeti(VG_RENDERING_QUALITY, VG_RENDERING_QUALITY_NONANTIALIASED);
+
+    stroke = vgCreatePaint();
+    /* Red */
+    color1[0] = 1.0f;
+    color1[1] = 0.0f;
+    color1[2] = 0.0f;
+    color1[3] = 1.0f;
+
+    /* Orange */
+    color2[0] = 1.0000f;
+    color2[1] = 1.0f;
+    color2[2] = 0.0f;
+    color2[3] = 1.0f;
+    vgSetPaint(stroke, VG_STROKE_PATH);
+
+    vgSeti(VG_STROKE_CAP_STYLE, VG_CAP_SQUARE);
+
+    {
+        VGfloat temp[9] = {0, 0, 0, 0, 0, 0, 0, 0, 0};
+        for (i = 0; i < 9; i++)
+        {
+            xform[i] = temp[i];
+        }
+    }
+    vgGetMatrix(xform);
+
+    target = vgCreatePath(VG_PATH_FORMAT_STANDARD,
+                          VG_PATH_DATATYPE_F, 1, 0, 0, 0, VG_PATH_CAPABILITY_TRANSFORM_TO);
+
+#if 0
+    /* Line path */
+    {
+        VGubyte temp[6] = {VG_MOVE_TO_ABS, VG_VLINE_TO_REL,
+                           VG_MOVE_TO_ABS, VG_VLINE_TO_REL,
+                           VG_HLINE_TO_REL, VG_VLINE_TO_REL};
+        for (i = 0; i < 6; i++)
+        {
+            lineCmds[i] = temp[i];
+        }
+    }
+    {
+        VGfloat temp[8] = {0.5f, 0.8f, -0.6f, 0.28f, 0.6f, -0.4f, 0.44f, 0.4f};
+        for (i = 0; i < 8; i++)
+        {
+            lineCoords[i] = temp[i] * window_width();
+        }
+    }
+#else
+    {
+        VGfloat temp[5] = {0.35f, 0.15f, 29, 0.3f, 0.4f};
+        for (i = 0; i < 5; i++)
+        {
+            arcCoords[i] = temp[i] * window_width();
+        }
+        arcCoords[2] = 29;
+    }
+
+    {
+        VGubyte temp[1] = {VG_SCCWARC_TO_ABS};
+        for (i = 0; i < 1; i++)
+        {
+            sccCmd[i] = temp[i];
+        }
+    }
+    {
+        VGubyte temp[1] = {VG_SCWARC_TO_ABS};
+        for (i = 0; i < 1; i++)
+        {
+            scCmd[i] = temp[i];
+        }
+    }
+    {
+        VGubyte temp[1] = {VG_LCCWARC_TO_ABS};
+        for (i = 0; i < 1; i++)
+        {
+            lccCmd[i] = temp[i];
+        }
+    }
+    {
+        VGubyte temp[1] = {VG_LCWARC_TO_ABS};
+        for (i = 0; i < 1; i++)
+        {
+            lcCmd[i] = temp[i];
+        }
+    }
+
+    {
+        VGubyte temp[1] = {VG_MOVE_TO_ABS};
+        for (i = 0; i < 1; i++)
+        {
+            moveCmd[i] = temp[i];
+        }
+    }
+    {
+        VGfloat temp[2] = {0.7f, 0.6f};
+        for (i = 0; i < 2; i++)
+        {
+            moveCoords[i] = temp[i] * window_width();
+        }
+    }
+#endif
+
+    lines = vgCreatePath(VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F, 1,
+                         0, 0, 0,
+                         VG_PATH_CAPABILITY_APPEND_TO|
+                         VG_PATH_CAPABILITY_TRANSFORM_FROM);
+#if 0
+    vgAppendPathData(lines, 6, lineCmds, lineCoords);
+#else
+    vgAppendPathData(lines, 1, moveCmd, moveCoords);
+    vgAppendPathData(lines, 1, sccCmd, arcCoords);
+    vgAppendPathData(lines, 1, moveCmd, moveCoords);
+    vgAppendPathData(lines, 1, scCmd, arcCoords);
+    vgAppendPathData(lines, 1, moveCmd, moveCoords);
+    vgAppendPathData(lines, 1, lccCmd, arcCoords);
+    vgAppendPathData(lines, 1, moveCmd, moveCoords);
+    vgAppendPathData(lines, 1, lcCmd, arcCoords);
+#endif
+
+    vgLoadIdentity();
+    vgTranslate(0.25f * window_width(), 0.25f * window_height());
+    vgRotate(30);
+    vgTranslate(-0.25f * window_width(), -0.25f * window_height());
+    vgTransformPath(target, lines);}
+
+/* new window size or exposure */
+static void
+reshape(int w, int h)
+{
+}
+
+static void
+draw(void)
+{
+    vgClear(0, 0, window_width(), window_height());
+    vgLoadMatrix(xform);
+    vgLoadIdentity();
+    vgTranslate(0.25f * window_width(), 0.25f * window_height());
+    vgRotate(30);
+    vgTranslate(-0.25f * window_width(), -0.25f * window_height());
+    vgSetf(VG_STROKE_LINE_WIDTH, 7);
+    vgSetParameterfv(stroke, VG_PAINT_COLOR, 4, color1);
+    vgDrawPath(lines, VG_STROKE_PATH);
+
+    vgLoadMatrix(xform);
+    vgSetParameterfv(stroke, VG_PAINT_COLOR, 4, color2);
+    vgSetf(VG_STROKE_LINE_WIDTH, 3);
+    vgDrawPath(target, VG_STROKE_PATH);
+}
+
+static int  key_press(unsigned key)
+{
+    switch(key) {
+    case XK_c:
+    case XK_C:
+        break;
+    case XK_j:
+    case XK_J:
+        break;
+    default:
+        break;
+    }
+
+    return VG_TRUE;
+}
+
+int main(int argc, char **argv)
+{
+   return run(argc, argv, init, reshape,
+              draw, key_press);
+}