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- Remove individual superseded licensing terms.
- Remove patches, outdated readmes & incomplete patch summaries.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, 145 deletions

diff --git a/gfx/cairo/win32-gdi-font-cache-no-HFONT.patch b/gfx/cairo/win32-gdi-font-cache-no-HFONT.patch
deleted file mode 100644
index fe93095ae..000000000
--- a/gfx/cairo/win32-gdi-font-cache-no-HFONT.patch
+++ /dev/null
@@ -1,145 +0,0 @@
-# HG changeset patch
-# User Robert O'Callahan <robert@ocallahan.org>
-# Date 1357107533 -46800
-# Node ID ed54dfdd2facb11a4d4158138b460a31de45e9f7
-# Parent ab6457cc16ec14ea07386dcfc57cad6b8a9ac55d
-Bug 717178. Part 3 alternative: don't put Win32 cairo_font_face_ts into the font-face cache if they were created with an explicit HFONT. r=jrmuizel
-
-diff --git a/gfx/cairo/cairo/src/cairo-win32-font.c b/gfx/cairo/cairo/src/cairo-win32-font.c
---- a/gfx/cairo/cairo/src/cairo-win32-font.c
-+++ b/gfx/cairo/cairo/src/cairo-win32-font.c
-@@ -1941,16 +1942,21 @@ const cairo_font_face_backend_t _cairo_w
-  * The primary purpose of this mapping is to provide unique
-  * #cairo_font_face_t values so that our cache and mapping from
-  * #cairo_font_face_t => #cairo_scaled_font_t works. Once the
-  * corresponding #cairo_font_face_t objects fall out of downstream
-  * caches, we don't need them in this hash table anymore.
-  *
-  * Modifications to this hash table are protected by
-  * _cairo_win32_font_face_mutex.
-+ *
-+ * Only #cairo_font_face_t values with null 'hfont' (no
-+ * HFONT preallocated by caller) are stored in this table. We rely
-+ * on callers to manage the lifetime of the HFONT, and they can't
-+ * do that if we share #cairo_font_face_t values with other callers.
-  */
- 
- static cairo_hash_table_t *cairo_win32_font_face_hash_table = NULL;
- 
- static int
- _cairo_win32_font_face_keys_equal (const void *key_a,
- 				   const void *key_b);
- 
-@@ -2036,22 +2042,24 @@ static int
- }
- 
- static void
- _cairo_win32_font_face_destroy (void *abstract_face)
- {
-     cairo_hash_table_t *hash_table;
-     cairo_win32_font_face_t *font_face = abstract_face;
- 
--    hash_table = _cairo_win32_font_face_hash_table_lock ();
--    if (unlikely (hash_table == NULL)) {
--        return;
-+    if (!font_face->hfont) {
-+        hash_table = _cairo_win32_font_face_hash_table_lock ();
-+        if (unlikely (hash_table == NULL)) {
-+            return;
-+        }
-+        _cairo_hash_table_remove (hash_table, &font_face->base.hash_entry);
-+        _cairo_win32_font_face_hash_table_unlock ();
-     }
--    _cairo_hash_table_remove (hash_table, &font_face->base.hash_entry);
--    _cairo_win32_font_face_hash_table_unlock ();
- }
- 
- /**
-  * cairo_win32_font_face_create_for_logfontw_hfont:
-  * @logfont: A #LOGFONTW structure specifying the font to use.
-  *   If @font is %NULL then the lfHeight, lfWidth, lfOrientation and lfEscapement
-  *   fields of this structure are ignored. Otherwise lfWidth, lfOrientation and
-  *   lfEscapement must be zero.
-@@ -2070,55 +2078,63 @@ static void
-  **/
- cairo_font_face_t *
- cairo_win32_font_face_create_for_logfontw_hfont (LOGFONTW *logfont, HFONT font)
- {
-     cairo_win32_font_face_t *font_face, key;
-     cairo_hash_table_t *hash_table;
-     cairo_status_t status;
- 
--    hash_table = _cairo_win32_font_face_hash_table_lock ();
--    if (unlikely (hash_table == NULL)) {
--        _cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
--	return (cairo_font_face_t *)&_cairo_font_face_nil;
--    }
-+    if (!font) {
-+        hash_table = _cairo_win32_font_face_hash_table_lock ();
-+        if (unlikely (hash_table == NULL)) {
-+            _cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
-+	    return (cairo_font_face_t *)&_cairo_font_face_nil;
-+        }
- 
--    _cairo_win32_font_face_init_key (&key, logfont, font);
-+        _cairo_win32_font_face_init_key (&key, logfont, font);
- 
--    /* Return existing unscaled font if it exists in the hash table. */
--    font_face = _cairo_hash_table_lookup (hash_table,
--					 &key.base.hash_entry);
--    if (font_face != NULL) {
--	cairo_font_face_reference (&font_face->base);
--	goto DONE;
-+        /* Return existing unscaled font if it exists in the hash table. */
-+        font_face = _cairo_hash_table_lookup (hash_table,
-+                                              &key.base.hash_entry);
-+        if (font_face != NULL) {
-+	    cairo_font_face_reference (&font_face->base);
-+	    goto DONE;
-+        }
-     }
- 
-     /* Otherwise create it and insert into hash table. */
-     font_face = malloc (sizeof (cairo_win32_font_face_t));
-     if (!font_face) {
-         _cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
- 	goto FAIL;
-     }
- 
-     _cairo_win32_font_face_init_key (font_face, logfont, font);
-     _cairo_font_face_init (&font_face->base, &_cairo_win32_font_face_backend);
-+    assert (font_face->base.hash_entry.hash == key.base.hash_entry.hash);
- 
--    assert (font_face->base.hash_entry.hash == key.base.hash_entry.hash);
--    status = _cairo_hash_table_insert (hash_table,
--				       &font_face->base.hash_entry);
--    if (unlikely (status))
--	goto FAIL;
-+    if (!font) {
-+        status = _cairo_hash_table_insert (hash_table,
-+                                           &font_face->base.hash_entry);
-+        if (unlikely (status))
-+	    goto FAIL;
-+    }
- 
- DONE:
--    _cairo_win32_font_face_hash_table_unlock ();
-+    if (!font) {
-+        _cairo_win32_font_face_hash_table_unlock ();
-+    }
- 
-     return &font_face->base;
- 
- FAIL:
--    _cairo_win32_font_face_hash_table_unlock ();
-+    if (!font) {
-+        _cairo_win32_font_face_hash_table_unlock ();
-+    }
- 
-     return (cairo_font_face_t *)&_cairo_font_face_nil;
- }
- 
- /**
-  * cairo_win32_font_face_create_for_logfontw:
-  * @logfont: A #LOGFONTW structure specifying the font to use.
-  *   The lfHeight, lfWidth, lfOrientation and lfEscapement