OpenVG 1.0 State Tracker

Import of the OpenVG 1.0 state tracker for Gallium.

1 files changed, 80 insertions, 0 deletions

diff --git a/src/gallium/state_trackers/vega/arc.h b/src/gallium/state_trackers/vega/arc.h
new file mode 100644
index 00000000000..3205cd5021d
--- /dev/null
+++ b/src/gallium/state_trackers/vega/arc.h
@@ -0,0 +1,80 @@
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#ifndef ARC_H
+#define ARC_H
+
+#include "VG/openvg.h"
+
+struct polygon;
+struct matrix;
+struct stroker;
+struct path;
+
+struct arc {
+   VGPathSegment type;
+
+   VGfloat cx, cy;
+
+   VGfloat a, b;
+
+   VGfloat theta;
+   VGfloat cos_theta, sin_theta;
+
+   VGfloat eta1;
+   VGfloat eta2;
+
+   VGfloat x1, y1, x2, y2;
+
+   VGboolean is_valid;
+};
+
+void arc_init(struct arc *arc,
+              VGPathSegment type,
+              VGfloat x1, VGfloat y1,
+              VGfloat x2, VGfloat y2,
+              VGfloat rh, VGfloat rv,
+              VGfloat rot);
+
+void arc_add_to_polygon(struct arc *arc,
+                        struct polygon *poly,
+                        struct matrix *matrix);
+
+
+void arc_to_path(struct arc *arc,
+                 struct path *p,
+                 struct matrix *matrix);
+
+void arc_stroke_cb(struct arc *arc,
+                   struct stroker *stroke,
+                   struct matrix *matrix);
+
+void arc_stroker_emit(struct arc *arc,
+                      struct stroker *stroke,
+                      struct matrix *matrix);
+
+
+#endif