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- Remove individual superseded licensing terms.
- Remove patches, outdated readmes & incomplete patch summaries.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, 528 deletions

diff --git a/gfx/cairo/expose-snapshot.patch b/gfx/cairo/expose-snapshot.patch
deleted file mode 100644
index 879b1fc90..000000000
--- a/gfx/cairo/expose-snapshot.patch
+++ /dev/null
@@ -1,528 +0,0 @@
-diff --git a/gfx/cairo/cairo/src/cairo-analysis-surface-private.h b/gfx/cairo/cairo/src/cairo-analysis-surface-private.h
---- a/gfx/cairo/cairo/src/cairo-analysis-surface-private.h
-+++ b/gfx/cairo/cairo/src/cairo-analysis-surface-private.h
-@@ -65,14 +65,11 @@ _cairo_analysis_surface_has_unsupported 
- cairo_private void
- _cairo_analysis_surface_get_bounding_box (cairo_surface_t *surface,
- 					  cairo_box_t     *bbox);
- 
- cairo_private cairo_int_status_t
- _cairo_analysis_surface_merge_status (cairo_int_status_t status_a,
- 				      cairo_int_status_t status_b);
- 
--cairo_private cairo_surface_t *
--_cairo_null_surface_create (cairo_content_t content);
--
- CAIRO_END_DECLS
- 
- #endif /* CAIRO_ANALYSIS_SURFACE_H */
-diff --git a/gfx/cairo/cairo/src/cairo-analysis-surface.c b/gfx/cairo/cairo/src/cairo-analysis-surface.c
---- a/gfx/cairo/cairo/src/cairo-analysis-surface.c
-+++ b/gfx/cairo/cairo/src/cairo-analysis-surface.c
-@@ -902,17 +902,17 @@ static const cairo_surface_backend_t cai
-     NULL, /* fill_stroke */
-     NULL, /* create_solid_pattern_surface */
-     NULL, /* can_repaint_solid_pattern_surface */
-     NULL, /* has_show_text_glyphs */
-     NULL  /* show_text_glyphs */
- };
- 
- cairo_surface_t *
--_cairo_null_surface_create (cairo_content_t content)
-+cairo_null_surface_create (cairo_content_t content)
- {
-     cairo_surface_t *surface;
- 
-     surface = malloc (sizeof (cairo_surface_t));
-     if (unlikely (surface == NULL)) {
- 	return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
-     }
- 
-diff --git a/gfx/cairo/cairo/src/cairo-d2d-surface.cpp b/gfx/cairo/cairo/src/cairo-d2d-surface.cpp
---- a/gfx/cairo/cairo/src/cairo-d2d-surface.cpp
-+++ b/gfx/cairo/cairo/src/cairo-d2d-surface.cpp
-@@ -1951,24 +1951,24 @@ _cairo_d2d_create_brush_for_pattern(cair
- 			rect = D2D1::RectU(1, 1, srcSurf->width + 1, srcSurf->height + 1);
- 		    } else {
- 			rect = D2D1::RectU(0, 0, srcSurf->width, srcSurf->height);
- 		    }
- 		    sourceBitmap->CopyFromMemory(&rect,
- 						 srcSurf->data,
- 						 srcSurf->stride);
- 		    cairo_surface_t *nullSurf =
--			_cairo_null_surface_create(CAIRO_CONTENT_COLOR_ALPHA);
-+			cairo_null_surface_create(CAIRO_CONTENT_COLOR_ALPHA);
- 		    cachebitmap->refs++;
- 		    cachebitmap->dirty = false;
- 		    cairo_surface_set_user_data(nullSurf,
- 						&bitmap_key_snapshot,
- 						cachebitmap,
- 						NULL);
--		    _cairo_surface_attach_snapshot(surfacePattern->surface,
-+		    cairo_surface_attach_snapshot(surfacePattern->surface,
- 						   nullSurf,
- 						   _d2d_snapshot_detached);
- 		}
- 	    } else {
- 		if (pattern->extend != CAIRO_EXTEND_NONE) {
- 		    d2dsurf->rt->CreateBitmap(D2D1::SizeU(width, height),
- 							  data + yoffset * stride + xoffset * Bpp,
- 							  stride,
-@@ -2015,22 +2015,22 @@ _cairo_d2d_create_brush_for_pattern(cair
- 		     * and one more in the user data structure.
- 		     */
- 		    cachebitmap->refs = 2;
- 		    cairo_surface_set_user_data(surfacePattern->surface,
- 						key,
- 						cachebitmap,
- 						_d2d_release_bitmap);
- 		    cairo_surface_t *nullSurf =
--			_cairo_null_surface_create(CAIRO_CONTENT_COLOR_ALPHA);
-+			cairo_null_surface_create(CAIRO_CONTENT_COLOR_ALPHA);
- 		    cairo_surface_set_user_data(nullSurf,
- 						&bitmap_key_snapshot,
- 						cachebitmap,
- 						NULL);
--		    _cairo_surface_attach_snapshot(surfacePattern->surface,
-+		    cairo_surface_attach_snapshot(surfacePattern->surface,
- 						   nullSurf,
- 						   _d2d_snapshot_detached);
- 		    cache_usage += _d2d_compute_bitmap_mem_size(sourceBitmap);
- 		}
- 		if (pix_image) {
- 		    pixman_image_unref(pix_image);
-   		}
- 	    }
-diff --git a/gfx/cairo/cairo/src/cairo-recording-surface.c b/gfx/cairo/cairo/src/cairo-recording-surface.c
---- a/gfx/cairo/cairo/src/cairo-recording-surface.c
-+++ b/gfx/cairo/cairo/src/cairo-recording-surface.c
-@@ -276,17 +276,17 @@ _cairo_recording_surface_acquire_source_
- 				     -surface->extents.y);
- 
-     status = _cairo_recording_surface_replay (&surface->base, image);
-     if (unlikely (status)) {
- 	cairo_surface_destroy (image);
- 	return status;
-     }
- 
--    _cairo_surface_attach_snapshot (&surface->base, image, NULL);
-+    cairo_surface_attach_snapshot (&surface->base, image, NULL);
- 
-     *image_out = (cairo_image_surface_t *) image;
-     *image_extra = NULL;
-     return CAIRO_STATUS_SUCCESS;
- }
- 
- static void
- _cairo_recording_surface_release_source_image (void			*abstract_surface,
-@@ -1046,17 +1046,17 @@ static cairo_status_t
- _recording_surface_get_ink_bbox (cairo_recording_surface_t *surface,
- 				 cairo_box_t *bbox,
- 				 const cairo_matrix_t *transform)
- {
-     cairo_surface_t *null_surface;
-     cairo_surface_t *analysis_surface;
-     cairo_status_t status;
- 
--    null_surface = _cairo_null_surface_create (surface->content);
-+    null_surface = cairo_null_surface_create (surface->content);
-     analysis_surface = _cairo_analysis_surface_create (null_surface);
-     cairo_surface_destroy (null_surface);
- 
-     status = analysis_surface->status;
-     if (unlikely (status))
- 	return status;
- 
-     if (transform != NULL)
-diff --git a/gfx/cairo/cairo/src/cairo-surface-private.h b/gfx/cairo/cairo/src/cairo-surface-private.h
---- a/gfx/cairo/cairo/src/cairo-surface-private.h
-+++ b/gfx/cairo/cairo/src/cairo-surface-private.h
-@@ -40,18 +40,16 @@
- 
- #include "cairo.h"
- 
- #include "cairo-types-private.h"
- #include "cairo-list-private.h"
- #include "cairo-reference-count-private.h"
- #include "cairo-clip-private.h"
- 
--typedef void (*cairo_surface_func_t) (cairo_surface_t *);
--
- struct _cairo_surface {
-     const cairo_surface_backend_t *backend;
-     cairo_device_t *device;
- 
-     /* We allow surfaces to override the backend->type by shoving something
-      * else into surface->type. This is for "wrapper" surfaces that want to
-      * hide their internal type from the user-level API. */
-     cairo_surface_type_t type;
-diff --git a/gfx/cairo/cairo/src/cairo-surface-snapshot.c b/gfx/cairo/cairo/src/cairo-surface-snapshot.c
---- a/gfx/cairo/cairo/src/cairo-surface-snapshot.c
-+++ b/gfx/cairo/cairo/src/cairo-surface-snapshot.c
-@@ -209,17 +209,17 @@ _cairo_surface_snapshot (cairo_surface_t
- 	    if (unlikely (status)) {
- 		cairo_surface_destroy (snap);
- 		return _cairo_surface_create_in_error (status);
- 	    }
- 
- 	    snap->device_transform = surface->device_transform;
- 	    snap->device_transform_inverse = surface->device_transform_inverse;
- 
--	    _cairo_surface_attach_snapshot (surface, snap, NULL);
-+	    cairo_surface_attach_snapshot (surface, snap, NULL);
- 
- 	    return snap;
- 	}
-     }
- 
-     snapshot = (cairo_surface_snapshot_t *)
- 	_cairo_surface_has_snapshot (surface, &_cairo_surface_snapshot_backend);
-     if (snapshot != NULL)
-@@ -242,14 +242,14 @@ _cairo_surface_snapshot (cairo_surface_t
-     if (unlikely (status)) {
- 	cairo_surface_destroy (&snapshot->base);
- 	return _cairo_surface_create_in_error (status);
-     }
- 
-     snapshot->base.device_transform = surface->device_transform;
-     snapshot->base.device_transform_inverse = surface->device_transform_inverse;
- 
--    _cairo_surface_attach_snapshot (surface,
-+    cairo_surface_attach_snapshot (surface,
- 				    &snapshot->base,
- 				    _cairo_surface_snapshot_copy_on_write);
- 
-     return &snapshot->base;
- }
-diff --git a/gfx/cairo/cairo/src/cairo-surface-subsurface.c b/gfx/cairo/cairo/src/cairo-surface-subsurface.c
---- a/gfx/cairo/cairo/src/cairo-surface-subsurface.c
-+++ b/gfx/cairo/cairo/src/cairo-surface-subsurface.c
-@@ -326,17 +326,17 @@ _cairo_surface_subsurface_acquire_source
- 		_cairo_image_surface_create_with_content (meta->content,
- 							  surface->extents.width,
- 							  surface->extents.height);
- 	    if (unlikely (image->base.status))
- 		return image->base.status;
- 
-             cairo_surface_paint_to_target (&image->base, surface);
- 
--	    _cairo_surface_attach_snapshot (&surface->base, &image->base, NULL);
-+	    cairo_surface_attach_snapshot (&surface->base, &image->base, NULL);
- 
- 	    *image_out = image;
- 	    *extra_out = NULL;
- 	    return CAIRO_STATUS_SUCCESS;
- 	}
-     }
- 
-     extra = malloc (sizeof (struct extra));
-diff --git a/gfx/cairo/cairo/src/cairo-surface.c b/gfx/cairo/cairo/src/cairo-surface.c
---- a/gfx/cairo/cairo/src/cairo-surface.c
-+++ b/gfx/cairo/cairo/src/cairo-surface.c
-@@ -305,51 +305,51 @@ _cairo_surface_detach_mime_data (cairo_s
-     if (! _cairo_surface_has_mime_data (surface))
- 	return;
- 
-     _cairo_user_data_array_fini (&surface->mime_data);
-     _cairo_user_data_array_init (&surface->mime_data);
- }
- 
- static void
--_cairo_surface_detach_snapshots (cairo_surface_t *surface)
-+cairo_surface_detach_snapshots (cairo_surface_t *surface)
- {
-     while (_cairo_surface_has_snapshots (surface)) {
--	_cairo_surface_detach_snapshot (cairo_list_first_entry (&surface->snapshots,
-+	cairo_surface_detach_snapshot (cairo_list_first_entry (&surface->snapshots,
- 								cairo_surface_t,
- 								snapshot));
-     }
- }
- 
- void
--_cairo_surface_detach_snapshot (cairo_surface_t *snapshot)
-+cairo_surface_detach_snapshot (cairo_surface_t *snapshot)
- {
-     assert (snapshot->snapshot_of != NULL);
- 
-     snapshot->snapshot_of = NULL;
-     cairo_list_del (&snapshot->snapshot);
- 
-     if (snapshot->snapshot_detach != NULL)
- 	snapshot->snapshot_detach (snapshot);
- 
-     cairo_surface_destroy (snapshot);
- }
- 
- void
--_cairo_surface_attach_snapshot (cairo_surface_t *surface,
-+cairo_surface_attach_snapshot (cairo_surface_t *surface,
- 				 cairo_surface_t *snapshot,
- 				 cairo_surface_func_t detach_func)
- {
-     assert (surface != snapshot);
-     assert (snapshot->snapshot_of != surface);
- 
-     cairo_surface_reference (snapshot);
- 
-     if (snapshot->snapshot_of != NULL)
--	_cairo_surface_detach_snapshot (snapshot);
-+	cairo_surface_detach_snapshot (snapshot);
- 
-     snapshot->snapshot_of = surface;
-     snapshot->snapshot_detach = detach_func;
- 
-     cairo_list_add (&snapshot->snapshot, &surface->snapshots);
- 
-     assert (_cairo_surface_has_snapshot (surface, snapshot->backend) == snapshot);
- }
-@@ -382,17 +382,17 @@ _cairo_surface_is_writable (cairo_surfac
- 
- static void
- _cairo_surface_begin_modification (cairo_surface_t *surface)
- {
-     assert (surface->status == CAIRO_STATUS_SUCCESS);
-     assert (! surface->finished);
-     assert (surface->snapshot_of == NULL);
- 
--    _cairo_surface_detach_snapshots (surface);
-+    cairo_surface_detach_snapshots (surface);
-     _cairo_surface_detach_mime_data (surface);
- }
- 
- void
- _cairo_surface_init (cairo_surface_t			*surface,
- 		     const cairo_surface_backend_t	*backend,
- 		     cairo_device_t			*device,
- 		     cairo_content_t			 content)
-@@ -711,19 +711,19 @@ cairo_surface_finish (cairo_surface_t *s
- 
-     if (CAIRO_REFERENCE_COUNT_IS_INVALID (&surface->ref_count))
- 	return;
- 
-     if (surface->finished)
- 	return;
- 
-     /* update the snapshots *before* we declare the surface as finished */
--    _cairo_surface_detach_snapshots (surface);
-+    cairo_surface_detach_snapshots (surface);
-     if (surface->snapshot_of != NULL)
--	_cairo_surface_detach_snapshot (surface);
-+	cairo_surface_detach_snapshot (surface);
- 
-     cairo_surface_flush (surface);
-     surface->finished = TRUE;
- 
-     /* call finish even if in error mode */
-     if (surface->backend->finish) {
- 	status = surface->backend->finish (surface);
- 	if (unlikely (status))
-@@ -1106,17 +1106,17 @@ cairo_surface_flush (cairo_surface_t *su
- 
-     if (surface->status)
- 	return;
- 
-     if (surface->finished)
- 	return;
- 
-     /* update the current snapshots *before* the user updates the surface */
--    _cairo_surface_detach_snapshots (surface);
-+    cairo_surface_detach_snapshots (surface);
- 
-     if (surface->backend->flush) {
- 	status = surface->backend->flush (surface);
- 	if (unlikely (status))
- 	    status = _cairo_surface_set_error (surface, status);
-     }
- }
- slim_hidden_def (cairo_surface_flush);
-@@ -1628,17 +1628,17 @@ _cairo_recording_surface_clone_similar (
- 	    return similar->status;
- 
- 	status = _cairo_recording_surface_replay (src, similar);
- 	if (unlikely (status)) {
- 	    cairo_surface_destroy (similar);
- 	    return status;
- 	}
- 
--	_cairo_surface_attach_snapshot (src, similar, NULL);
-+	cairo_surface_attach_snapshot (src, similar, NULL);
- 
- 	src_x = src_y = 0;
-     }
- 
-     *clone_out = similar;
-     *clone_offset_x = src_x;
-     *clone_offset_y = src_y;
-     return CAIRO_STATUS_SUCCESS;
-diff --git a/gfx/cairo/cairo/src/cairo-vg-surface.c b/gfx/cairo/cairo/src/cairo-vg-surface.c
---- a/gfx/cairo/cairo/src/cairo-vg-surface.c
-+++ b/gfx/cairo/cairo/src/cairo-vg-surface.c
-@@ -977,17 +977,17 @@ _vg_setup_surface_source (cairo_vg_conte
-     status = _cairo_cache_insert (&context->snapshot_cache,
- 				  &clone->snapshot_cache_entry);
-     if (unlikely (status)) {
- 	clone->snapshot_cache_entry.hash = 0;
- 	cairo_surface_destroy (&clone->base);
- 	return status;
-     }
- 
--    _cairo_surface_attach_snapshot (spat->surface, &clone->base,
-+    cairo_surface_attach_snapshot (spat->surface, &clone->base,
- 				    _vg_surface_remove_from_cache);
- 
- DONE:
-     cairo_surface_destroy (&context->source->base);
-     context->source = clone;
- 
-     vgSetParameteri (context->paint, VG_PAINT_TYPE, VG_PAINT_TYPE_PATTERN);
- 
-diff --git a/gfx/cairo/cairo/src/cairo-xcb-surface.c b/gfx/cairo/cairo/src/cairo-xcb-surface.c
---- a/gfx/cairo/cairo/src/cairo-xcb-surface.c
-+++ b/gfx/cairo/cairo/src/cairo-xcb-surface.c
-@@ -560,17 +560,17 @@ _cairo_xcb_surface_acquire_source_image 
- 	image = (cairo_image_surface_t *) cairo_surface_reference (&image->base);
- 	goto DONE;
-     }
- 
-     status = _get_image (surface, FALSE, &image);
-     if (unlikely (status))
- 	return status;
- 
--    _cairo_surface_attach_snapshot (&surface->base, &image->base, NULL);
-+    cairo_surface_attach_snapshot (&surface->base, &image->base, NULL);
- 
- DONE:
-     *image_out = image;
-     *image_extra = NULL;
-     return CAIRO_STATUS_SUCCESS;
- }
- 
- static void
-@@ -713,17 +713,17 @@ _cairo_xcb_surface_flush (void *abstract
- 	status = cairo_surface_status (surface->fallback);
- 
- 	if (status == CAIRO_STATUS_SUCCESS) {
- 	    status = _put_image (surface,
- 				 (cairo_image_surface_t *) surface->fallback);
- 	}
- 
- 	if (status == CAIRO_STATUS_SUCCESS) {
--	    _cairo_surface_attach_snapshot (&surface->base,
-+	    cairo_surface_attach_snapshot (&surface->base,
- 					    surface->fallback,
- 					    cairo_surface_finish);
- 	}
-     }
- 
-     cairo_surface_destroy (surface->fallback);
-     surface->fallback = NULL;
- 
-diff --git a/gfx/cairo/cairo/src/cairo.h b/gfx/cairo/cairo/src/cairo.h
---- a/gfx/cairo/cairo/src/cairo.h
-+++ b/gfx/cairo/cairo/src/cairo.h
-@@ -214,16 +214,25 @@ typedef struct _cairo_pattern cairo_patt
-  *
-  * #cairo_destroy_func_t the type of function which is called when a
-  * data element is destroyed. It is passed the pointer to the data
-  * element and should free any memory and resources allocated for it.
-  **/
- typedef void (*cairo_destroy_func_t) (void *data);
- 
- /**
-+ * cairo_surface_func_t:
-+ * @surface: The surface being referred to.
-+ *
-+ * #cairo_surface_func_t the type of function which is used for callback
-+ * when a surface needs to be apssed as a parameter.
-+ */
-+typedef void (*cairo_surface_func_t) (cairo_surface_t *surface);
-+
-+/**
-  * cairo_user_data_key_t:
-  * @unused: not used; ignore.
-  *
-  * #cairo_user_data_key_t is used for attaching user data to cairo
-  * data structures.  The actual contents of the struct is never used,
-  * and there is no need to initialize the object; only the unique
-  * address of a #cairo_data_key_t object is used.  Typically, you
-  * would just use the address of a static #cairo_data_key_t object.
-@@ -2150,16 +2159,24 @@ cairo_surface_get_user_data (cairo_surfa
- 			     const cairo_user_data_key_t *key);
- 
- cairo_public cairo_status_t
- cairo_surface_set_user_data (cairo_surface_t		 *surface,
- 			     const cairo_user_data_key_t *key,
- 			     void			 *user_data,
- 			     cairo_destroy_func_t	 destroy);
- 
-+cairo_public void
-+cairo_surface_attach_snapshot (cairo_surface_t *surface,
-+				cairo_surface_t *snapshot,
-+				cairo_surface_func_t detach_func);
-+
-+cairo_public void
-+cairo_surface_detach_snapshot (cairo_surface_t *snapshot);
-+
- #define CAIRO_MIME_TYPE_JPEG "image/jpeg"
- #define CAIRO_MIME_TYPE_PNG "image/png"
- #define CAIRO_MIME_TYPE_JP2 "image/jp2"
- #define CAIRO_MIME_TYPE_URI "text/x-uri"
- 
- cairo_public void
- cairo_surface_get_mime_data (cairo_surface_t		*surface,
-                              const char			*mime_type,
-@@ -2328,16 +2345,21 @@ cairo_recording_surface_create (cairo_co
- 
- cairo_public void
- cairo_recording_surface_ink_extents (cairo_surface_t *surface,
-                                      double *x0,
-                                      double *y0,
-                                      double *width,
-                                      double *height);
- 
-+/* Null-surface functions */
-+
-+cairo_public cairo_surface_t *
-+cairo_null_surface_create (cairo_content_t content);
-+
- /* Pattern creation functions */
- 
- cairo_public cairo_pattern_t *
- cairo_pattern_create_rgb (double red, double green, double blue);
- 
- cairo_public cairo_pattern_t *
- cairo_pattern_create_rgba (double red, double green, double blue,
- 			   double alpha);
-diff --git a/gfx/cairo/cairo/src/cairoint.h b/gfx/cairo/cairo/src/cairoint.h
---- a/gfx/cairo/cairo/src/cairoint.h
-+++ b/gfx/cairo/cairo/src/cairoint.h
-@@ -1770,27 +1770,19 @@ _cairo_surface_clone_similar (cairo_surf
- 			      int               height,
- 			      int              *clone_offset_x,
- 			      int              *clone_offset_y,
- 			      cairo_surface_t **clone_out);
- 
- cairo_private cairo_surface_t *
- _cairo_surface_snapshot (cairo_surface_t *surface);
- 
--cairo_private void
--_cairo_surface_attach_snapshot (cairo_surface_t *surface,
--				cairo_surface_t *snapshot,
--				cairo_surface_func_t detach_func);
--
- cairo_private cairo_surface_t *
- _cairo_surface_has_snapshot (cairo_surface_t *surface,
--			     const cairo_surface_backend_t *backend);
--
--cairo_private void
--_cairo_surface_detach_snapshot (cairo_surface_t *snapshot);
-+		 	     const cairo_surface_backend_t *backend);
- 
- cairo_private cairo_bool_t
- _cairo_surface_is_similar (cairo_surface_t *surface_a,
- 	                   cairo_surface_t *surface_b);
- 
- cairo_private cairo_bool_t
- _cairo_surface_get_extents (cairo_surface_t         *surface,
- 			    cairo_rectangle_int_t   *extents);