Issue #1274 - Part 1: Adopt the cairo version as our own.

- Move header licensing from tri-license to MPL 2.0. MPL-compatible
  other licensing has been retained where originally present.
- Remove individual superseded licensing terms.
- Remove patches, outdated readmes & incomplete patch summaries.
- Remove incomplete cairo release notes (only went up to 1.6.4 anyway).
- Rewrite COPYING to indicate the current state of the library in tree.

1 files changed, 0 insertions, 70 deletions

diff --git a/gfx/cairo/on-edge.patch b/gfx/cairo/on-edge.patch
deleted file mode 100644
index 85e328ad8..000000000
--- a/gfx/cairo/on-edge.patch
+++ /dev/null
@@ -1,70 +0,0 @@
-commit a26655b3144ed273940486fc15ccdac12b0562ec
-Author: Jeff Muizelaar <jmuizelaar@mozilla.com>
-Date:   Tue Mar 17 15:08:50 2009 -0400
-
-    Jeff Muizelaar noted that the treatment of edges differed with firefox's
-    canvas definition, which considers a point on any edge as inside. The
-    current implementation has a similar definition to that of flash, for
-    which the top and right edges are outside. Arguably, firefox has the more
-    intuitive definition here...
-
-diff --git a/src/cairo-path-in-fill.c b/src/cairo-path-in-fill.c
-index 21cd0bd..e641654 100644
---- a/src/cairo-path-in-fill.c
-+++ b/src/cairo-path-in-fill.c
-@@ -41,6 +41,7 @@ typedef struct cairo_in_fill {
-     int winding;
- 
-     cairo_fixed_t x, y;
-+    cairo_bool_t on_edge;
- 
-     cairo_bool_t has_current_point;
-     cairo_point_t current_point;
-@@ -58,6 +59,7 @@ _cairo_in_fill_init (cairo_in_fill_t	*in_fill,
- 
-     in_fill->x = _cairo_fixed_from_double (x);
-     in_fill->y = _cairo_fixed_from_double (y);
-+    in_fill->on_edge = FALSE;
- 
-     in_fill->has_current_point = FALSE;
-     in_fill->current_point.x = 0;
-@@ -103,6 +105,9 @@ _cairo_in_fill_add_edge (cairo_in_fill_t *in_fill,
- {
-     int dir;
- 
-+    if (in_fill->on_edge)
-+	return;
-+
-     /* count the number of edge crossing to -∞ */
- 
-     dir = 1;
-@@ -116,6 +121,18 @@ _cairo_in_fill_add_edge (cairo_in_fill_t *in_fill,
- 	dir = -1;
-     }
- 
-+    /* First check whether the query is on an edge */
-+    if ((p1->x == in_fill->x && p1->x == in_fill->y) ||
-+	(p2->x == in_fill->x && p2->x == in_fill->y) ||
-+	(! (p2->y < in_fill->y || p1->y > in_fill->y) &&
-+	 ! (p1->x > in_fill->x && p2->x > in_fill->x) &&
-+	 ! (p1->x < in_fill->x && p2->x < in_fill->x) &&
-+	 edge_compare_for_y_against_x (p1, p2, in_fill->y, in_fill->x) == 0))
-+    {
-+	in_fill->on_edge = TRUE;
-+	return;
-+    }
-+
-     /* edge is entirely above or below, note the shortening rule */
-     if (p2->y <= in_fill->y || p1->y > in_fill->y)
- 	return;
-@@ -246,7 +263,9 @@ _cairo_path_fixed_in_fill (cairo_path_fixed_t	*path,
- 
-     _cairo_in_fill_close_path (&in_fill);
- 
--    switch (fill_rule) {
-+    if (in_fill.on_edge) {
-+	*is_inside = TRUE;
-+    } else switch (fill_rule) {
-     case CAIRO_FILL_RULE_EVEN_ODD:
- 	*is_inside = in_fill.winding & 1;
- 	break;