Initial import of libart 2.3.21

1 files changed, 67 insertions, 0 deletions

diff --git a/art_svp_render_aa.h b/art_svp_render_aa.h
new file mode 100644
index 0000000..bb3d885
--- /dev/null
+++ b/art_svp_render_aa.h
@@ -0,0 +1,67 @@
+/* Libart_LGPL - library of basic graphic primitives
+ * Copyright (C) 1998 Raph Levien
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __ART_SVP_RENDER_AA_H__
+#define __ART_SVP_RENDER_AA_H__
+
+/* The spiffy antialiased renderer for sorted vector paths. */
+
+#ifdef LIBART_COMPILATION
+#include "art_svp.h"
+#else
+#include <libart_lgpl/art_svp.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+typedef struct _ArtSVPRenderAAStep ArtSVPRenderAAStep;
+typedef struct _ArtSVPRenderAAIter ArtSVPRenderAAIter;
+
+struct _ArtSVPRenderAAStep {
+  int x;
+  int delta; /* stored with 16 fractional bits */
+};
+
+ArtSVPRenderAAIter *
+art_svp_render_aa_iter (const ArtSVP *svp,
+			int x0, int y0, int x1, int y1);
+
+void
+art_svp_render_aa_iter_step (ArtSVPRenderAAIter *iter, int *p_start,
+			     ArtSVPRenderAAStep **p_steps, int *p_n_steps);
+
+void
+art_svp_render_aa_iter_done (ArtSVPRenderAAIter *iter);
+
+void
+art_svp_render_aa (const ArtSVP *svp,
+		   int x0, int y0, int x1, int y1,
+		   void (*callback) (void *callback_data,
+				     int y,
+				     int start,
+				     ArtSVPRenderAAStep *steps, int n_steps),
+		   void *callback_data);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __ART_SVP_RENDER_AA_H__ */