add cairo

1 files changed, 323 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/src/cairo-debug.c b/libs/cairo-1.16.0/src/cairo-debug.c
new file mode 100644
index 0000000..6005060
--- /dev/null
+++ b/libs/cairo-1.16.0/src/cairo-debug.c
@@ -0,0 +1,323 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2005 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ */
+
+#include "cairoint.h"
+#include "cairo-image-surface-private.h"
+
+/**
+ * cairo_debug_reset_static_data:
+ *
+ * Resets all static data within cairo to its original state,
+ * (ie. identical to the state at the time of program invocation). For
+ * example, all caches within cairo will be flushed empty.
+ *
+ * This function is intended to be useful when using memory-checking
+ * tools such as valgrind. When valgrind's memcheck analyzes a
+ * cairo-using program without a call to cairo_debug_reset_static_data(),
+ * it will report all data reachable via cairo's static objects as
+ * "still reachable". Calling cairo_debug_reset_static_data() just prior
+ * to program termination will make it easier to get squeaky clean
+ * reports from valgrind.
+ *
+ * WARNING: It is only safe to call this function when there are no
+ * active cairo objects remaining, (ie. the appropriate destroy
+ * functions have been called as necessary). If there are active cairo
+ * objects, this call is likely to cause a crash, (eg. an assertion
+ * failure due to a hash table being destroyed when non-empty).
+ *
+ * Since: 1.0
+ **/
+void
+cairo_debug_reset_static_data (void)
+{
+    CAIRO_MUTEX_INITIALIZE ();
+
+    _cairo_scaled_font_map_destroy ();
+
+    _cairo_toy_font_face_reset_static_data ();
+
+#if CAIRO_HAS_FT_FONT
+    _cairo_ft_font_reset_static_data ();
+#endif
+
+#if CAIRO_HAS_WIN32_FONT
+    _cairo_win32_font_reset_static_data ();
+#endif
+
+    _cairo_intern_string_reset_static_data ();
+
+    _cairo_scaled_font_reset_static_data ();
+
+    _cairo_pattern_reset_static_data ();
+
+    _cairo_clip_reset_static_data ();
+
+    _cairo_image_reset_static_data ();
+
+    _cairo_image_compositor_reset_static_data ();
+
+#if CAIRO_HAS_DRM_SURFACE
+    _cairo_drm_device_reset_static_data ();
+#endif
+
+    _cairo_default_context_reset_static_data ();
+
+#if CAIRO_HAS_COGL_SURFACE
+    _cairo_cogl_context_reset_static_data ();
+#endif
+
+    CAIRO_MUTEX_FINALIZE ();
+}
+
+#if HAVE_VALGRIND
+void
+_cairo_debug_check_image_surface_is_defined (const cairo_surface_t *surface)
+{
+    const cairo_image_surface_t *image = (cairo_image_surface_t *) surface;
+    const uint8_t *bits;
+    int row, width;
+
+    if (surface == NULL)
+	return;
+
+    if (! RUNNING_ON_VALGRIND)
+	return;
+
+    bits = image->data;
+    switch (image->format) {
+    case CAIRO_FORMAT_A1:
+	width = (image->width + 7)/8;
+	break;
+    case CAIRO_FORMAT_A8:
+	width = image->width;
+	break;
+    case CAIRO_FORMAT_RGB16_565:
+	width = image->width*2;
+	break;
+    case CAIRO_FORMAT_RGB24:
+    case CAIRO_FORMAT_RGB30:
+    case CAIRO_FORMAT_ARGB32:
+	width = image->width*4;
+	break;
+    case CAIRO_FORMAT_INVALID:
+    default:
+	/* XXX compute width from pixman bpp */
+	return;
+    }
+
+    for (row = 0; row < image->height; row++) {
+	VALGRIND_CHECK_MEM_IS_DEFINED (bits, width);
+	/* and then silence any future valgrind warnings */
+	VALGRIND_MAKE_MEM_DEFINED (bits, width);
+	bits += image->stride;
+    }
+}
+#endif
+
+
+#if 0
+void
+_cairo_image_surface_write_to_ppm (cairo_image_surface_t *isurf, const char *fn)
+{
+    char *fmt;
+    if (isurf->format == CAIRO_FORMAT_ARGB32 || isurf->format == CAIRO_FORMAT_RGB24)
+        fmt = "P6";
+    else if (isurf->format == CAIRO_FORMAT_A8)
+        fmt = "P5";
+    else
+        return;
+
+    FILE *fp = fopen(fn, "wb");
+    if (!fp)
+        return;
+
+    fprintf (fp, "%s %d %d 255\n", fmt,isurf->width, isurf->height);
+    for (int j = 0; j < isurf->height; j++) {
+        unsigned char *row = isurf->data + isurf->stride * j;
+        for (int i = 0; i < isurf->width; i++) {
+            if (isurf->format == CAIRO_FORMAT_ARGB32 || isurf->format == CAIRO_FORMAT_RGB24) {
+                unsigned char r = *row++;
+                unsigned char g = *row++;
+                unsigned char b = *row++;
+                *row++;
+                putc(r, fp);
+                putc(g, fp);
+                putc(b, fp);
+            } else {
+                unsigned char a = *row++;
+                putc(a, fp);
+            }
+        }
+    }
+
+    fclose (fp);
+
+    fprintf (stderr, "Wrote %s\n", fn);
+}
+#endif
+
+static cairo_status_t
+_print_move_to (void *closure,
+		const cairo_point_t *point)
+{
+    fprintf (closure,
+	     " %f %f m",
+	     _cairo_fixed_to_double (point->x),
+	     _cairo_fixed_to_double (point->y));
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_print_line_to (void *closure,
+		const cairo_point_t *point)
+{
+    fprintf (closure,
+	     " %f %f l",
+	     _cairo_fixed_to_double (point->x),
+	     _cairo_fixed_to_double (point->y));
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_print_curve_to (void *closure,
+		 const cairo_point_t *p1,
+		 const cairo_point_t *p2,
+		 const cairo_point_t *p3)
+{
+    fprintf (closure,
+	     " %f %f %f %f %f %f c",
+	     _cairo_fixed_to_double (p1->x),
+	     _cairo_fixed_to_double (p1->y),
+	     _cairo_fixed_to_double (p2->x),
+	     _cairo_fixed_to_double (p2->y),
+	     _cairo_fixed_to_double (p3->x),
+	     _cairo_fixed_to_double (p3->y));
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_print_close (void *closure)
+{
+    fprintf (closure, " h");
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+void
+_cairo_debug_print_path (FILE *stream, const cairo_path_fixed_t *path)
+{
+    cairo_status_t status;
+    cairo_box_t box;
+
+    fprintf (stream,
+	     "path: extents=(%f, %f), (%f, %f)\n",
+	    _cairo_fixed_to_double (path->extents.p1.x),
+	    _cairo_fixed_to_double (path->extents.p1.y),
+	    _cairo_fixed_to_double (path->extents.p2.x),
+	    _cairo_fixed_to_double (path->extents.p2.y));
+
+    status = _cairo_path_fixed_interpret (path,
+					  _print_move_to,
+					  _print_line_to,
+					  _print_curve_to,
+					  _print_close,
+					  stream);
+    assert (status == CAIRO_STATUS_SUCCESS);
+
+    if (_cairo_path_fixed_is_box (path, &box)) {
+	fprintf (stream, "[box (%d, %d), (%d, %d)]",
+		 box.p1.x, box.p1.y, box.p2.x, box.p2.y);
+    }
+
+    fprintf (stream, "\n");
+}
+
+void
+_cairo_debug_print_polygon (FILE *stream, cairo_polygon_t *polygon)
+{
+    int n;
+
+    fprintf (stream,
+	     "polygon: extents=(%f, %f), (%f, %f)\n",
+	    _cairo_fixed_to_double (polygon->extents.p1.x),
+	    _cairo_fixed_to_double (polygon->extents.p1.y),
+	    _cairo_fixed_to_double (polygon->extents.p2.x),
+	    _cairo_fixed_to_double (polygon->extents.p2.y));
+    if (polygon->num_limits) {
+	fprintf (stream,
+		 "       : limit=(%f, %f), (%f, %f) x %d\n",
+		 _cairo_fixed_to_double (polygon->limit.p1.x),
+		 _cairo_fixed_to_double (polygon->limit.p1.y),
+		 _cairo_fixed_to_double (polygon->limit.p2.x),
+		 _cairo_fixed_to_double (polygon->limit.p2.y),
+		 polygon->num_limits);
+    }
+
+    for (n = 0; n < polygon->num_edges; n++) {
+	cairo_edge_t *edge = &polygon->edges[n];
+
+	fprintf (stream,
+		 "  [%d] = [(%f, %f), (%f, %f)], top=%f, bottom=%f, dir=%d\n",
+		 n,
+		 _cairo_fixed_to_double (edge->line.p1.x),
+		 _cairo_fixed_to_double (edge->line.p1.y),
+		 _cairo_fixed_to_double (edge->line.p2.x),
+		 _cairo_fixed_to_double (edge->line.p2.y),
+		 _cairo_fixed_to_double (edge->top),
+		 _cairo_fixed_to_double (edge->bottom),
+		 edge->dir);
+
+    }
+}
+
+void
+_cairo_debug_print_matrix (FILE *file, const cairo_matrix_t *matrix)
+{
+    fprintf (file, "[%g %g %g %g %g %g]\n",
+	     matrix->xx, matrix->yx,
+	     matrix->xy, matrix->yy,
+	     matrix->x0, matrix->y0);
+}
+
+void
+_cairo_debug_print_rect (FILE *file, const cairo_rectangle_int_t *rect)
+{
+    fprintf (file, "x: %d y: %d width: %d height: %d\n",
+	     rect->x, rect->y,
+	     rect->width, rect->height);
+}