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- Remove individual superseded licensing terms.
- Remove patches, outdated readmes & incomplete patch summaries.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, 75 deletions

diff --git a/gfx/cairo/add-a-stash-of-cairo_t-s.patch b/gfx/cairo/add-a-stash-of-cairo_t-s.patch
deleted file mode 100644
index c6fcdd9d8..000000000
--- a/gfx/cairo/add-a-stash-of-cairo_t-s.patch
+++ /dev/null
@@ -1,75 +0,0 @@
-commit dfec2c249915560cedd2b49326c6629ad8a0b0f2
-Author: Jeff Muizelaar <jmuizelaar@mozilla.com>
-Date:   Tue Mar 2 16:01:41 2010 -0500
-
-    add a stash of cairo_t's
-
-diff --git a/src/cairo.c b/src/cairo.c
-index 3c9d892..4b27b83 100644
---- a/src/cairo.c
-+++ b/src/cairo.c
-@@ -119,7 +119,63 @@ _cairo_set_error (cairo_t *cr, cairo_status_t status)
-     _cairo_status_set_error (&cr->status, _cairo_error (status));
- }
- 
--#if HAS_ATOMIC_OPS
-+#if defined(_MSC_VER)
-+#pragma intrinsic(_BitScanForward)
-+static __forceinline int
-+ffs(int x)
-+{
-+    unsigned long i;
-+
-+    if (_BitScanForward(&i, x) != 0)
-+	return i + 1;
-+
-+    return 0;
-+}
-+#endif
-+
-+
-+#if CAIRO_NO_MUTEX
-+/* We keep a small stash of contexts to reduce malloc pressure */
-+#define CAIRO_STASH_SIZE 4
-+static struct {
-+    cairo_t pool[CAIRO_STASH_SIZE];
-+    int occupied;
-+} _context_stash;
-+
-+static cairo_t *
-+_context_get (void)
-+{
-+    int avail, old, new;
-+
-+    old = _context_stash.occupied;
-+    avail = ffs (~old) - 1;
-+    if (avail >= CAIRO_STASH_SIZE)
-+	return malloc (sizeof (cairo_t));
-+
-+    new = old | (1 << avail);
-+    _context_stash.occupied = new;
-+
-+    return &_context_stash.pool[avail];
-+}
-+
-+static void
-+_context_put (cairo_t *cr)
-+{
-+    int old, new, avail;
-+
-+    if (cr < &_context_stash.pool[0] ||
-+	cr >= &_context_stash.pool[CAIRO_STASH_SIZE])
-+    {
-+	free (cr);
-+	return;
-+    }
-+
-+    avail = ~(1 << (cr - &_context_stash.pool[0]));
-+    old = _context_stash.occupied;
-+    new = old & avail;
-+    _context_stash.occupied = new;
-+}
-+#elif HAS_ATOMIC_OPS
- /* We keep a small stash of contexts to reduce malloc pressure */
- #define CAIRO_STASH_SIZE 4
- static struct {