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- Remove individual superseded licensing terms.
- Remove patches, outdated readmes & incomplete patch summaries.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, 181 deletions

diff --git a/gfx/cairo/win32-ddb-dib.patch b/gfx/cairo/win32-ddb-dib.patch
deleted file mode 100644
index a520d6e10..000000000
--- a/gfx/cairo/win32-ddb-dib.patch
+++ /dev/null
@@ -1,181 +0,0 @@
-b=455513; add optional flag to allow converting a DDB to a DIB internally, if the surface is every used as a source; r=jmuizelaar
-
-If a DDB is used as a source for an operation that can't be handled
-natively by GDI, we end up needing to take a really slow path (creating a
-temporary surface for acquire_source) for each operation.  If we convert
-the DDB to a DIB, we then end up having a real image buffer and can hand
-things off to pixman directly.
-
-This isn't the default mode because I'm not sure if there are cases where a
-DDB is explicitly needed (e.g. for printing), and it would change
-current cairo behaviour.  It might become the default at some point in the
-future.
-
-diff --git a/gfx/cairo/cairo/src/cairo-win32-private.h b/gfx/cairo/cairo/src/cairo-win32-private.h
---- a/gfx/cairo/cairo/src/cairo-win32-private.h
-+++ b/gfx/cairo/cairo/src/cairo-win32-private.h
-@@ -117,6 +117,9 @@
- 
-     /* Whether we can use the CHECKJPEGFORMAT escape function */
-     CAIRO_WIN32_SURFACE_CAN_CHECK_PNG = (1<<8),
-+
-+    /* if this DDB surface can be converted to a DIB if necessary */
-+    CAIRO_WIN32_SURFACE_CAN_CONVERT_TO_DIB = (1<<9),
- };
- 
- cairo_status_t
-diff --git a/gfx/cairo/cairo/src/cairo-win32-surface.c b/gfx/cairo/cairo/src/cairo-win32-surface.c
---- a/gfx/cairo/cairo/src/cairo-win32-surface.c
-+++ b/gfx/cairo/cairo/src/cairo-win32-surface.c
-@@ -560,6 +560,56 @@
-     return CAIRO_STATUS_SUCCESS;
- }
- 
-+static void
-+_cairo_win32_convert_ddb_to_dib (cairo_win32_surface_t *surface)
-+{
-+    cairo_win32_surface_t *new_surface;
-+    int width = surface->extents.width;
-+    int height = surface->extents.height;
-+
-+    BOOL ok;
-+    HBITMAP oldbitmap;
-+
-+    new_surface = (cairo_win32_surface_t*)
-+	_cairo_win32_surface_create_for_dc (surface->dc,
-+					    surface->format,
-+					    width,
-+					    height);
-+
-+    if (new_surface->base.status)
-+	return;
-+
-+    /* DDB can't be 32bpp, so BitBlt is safe */
-+    ok = BitBlt (new_surface->dc,
-+		 0, 0, width, height,
-+		 surface->dc,
-+		 0, 0, SRCCOPY);
-+
-+    if (!ok)
-+	goto out;
-+
-+    /* Now swap around new_surface and surface's internal bitmap
-+     * pointers. */
-+    DeleteDC (new_surface->dc);
-+    new_surface->dc = NULL;
-+
-+    oldbitmap = SelectObject (surface->dc, new_surface->bitmap);
-+    DeleteObject (oldbitmap);
-+
-+    surface->image = new_surface->image;
-+    surface->is_dib = new_surface->is_dib;
-+    surface->bitmap = new_surface->bitmap;
-+
-+    new_surface->bitmap = NULL;
-+    new_surface->image = NULL;
-+
-+    /* Finally update flags */
-+    surface->flags = _cairo_win32_flags_for_dc (surface->dc);
-+
-+  out:
-+    cairo_surface_destroy ((cairo_surface_t*)new_surface);
-+}
-+
- static cairo_status_t
- _cairo_win32_surface_acquire_source_image (void                    *abstract_surface,
- 					   cairo_image_surface_t  **image_out,
-@@ -568,6 +618,17 @@
-     cairo_win32_surface_t *surface = abstract_surface;
-     cairo_win32_surface_t *local = NULL;
-     cairo_status_t status;
-+
-+    if (!surface->image && !surface->is_dib && surface->bitmap &&
-+	(surface->flags & CAIRO_WIN32_SURFACE_CAN_CONVERT_TO_DIB) != 0)
-+    {
-+	/* This is a DDB, and we're being asked to use it as a source for
-+	 * something that we couldn't support natively.  So turn it into
-+	 * a DIB, so that we have an equivalent image surface, as long
-+	 * as we're allowed to via flags.
-+	 */
-+	_cairo_win32_convert_ddb_to_dib (surface);
-+    }
- 
-     if (surface->image) {
- 	*image_out = (cairo_image_surface_t *)surface->image;
-@@ -2133,3 +2194,61 @@
-     free(rd);
-     fflush (stderr);
- }
-+
-+/**
-+ * cairo_win32_surface_set_can_convert_to_dib
-+ * @surface: a #cairo_surface_t
-+ * @can_convert: a #cairo_bool_t indicating whether this surface can
-+ *               be coverted to a DIB if necessary
-+ *
-+ * A DDB surface with this flag set can be converted to a DIB if it's
-+ * used as a source in a way that GDI can't natively handle; for
-+ * example, drawing a RGB24 DDB onto an ARGB32 DIB.  Doing this
-+ * conversion results in a significant speed optimization, because we
-+ * can call on pixman to perform the operation natively, instead of
-+ * reading the data from the DC each time.
-+ *
-+ * Return value: %CAIRO_STATUS_SUCCESS if the flag was successfully
-+ * changed, or an error otherwise.
-+ * 
-+ */
-+cairo_status_t
-+cairo_win32_surface_set_can_convert_to_dib (cairo_surface_t *asurface, cairo_bool_t can_convert)
-+{
-+    cairo_win32_surface_t *surface = (cairo_win32_surface_t*) asurface;
-+    if (surface->base.type != CAIRO_SURFACE_TYPE_WIN32)
-+	return CAIRO_STATUS_SURFACE_TYPE_MISMATCH;
-+
-+    if (surface->bitmap) {
-+	if (can_convert)
-+	    surface->flags |= CAIRO_WIN32_SURFACE_CAN_CONVERT_TO_DIB;
-+	else
-+	    surface->flags &= ~CAIRO_WIN32_SURFACE_CAN_CONVERT_TO_DIB;
-+    }
-+
-+    return CAIRO_STATUS_SUCCESS;
-+}
-+
-+/**
-+ * cairo_win32_surface_get_can_convert_to_dib
-+ * @surface: a #cairo_surface_t
-+ * @can_convert: a #cairo_bool_t* that receives the return value
-+ *
-+ * Returns the value of the flag indicating whether the surface can be
-+ * converted to a DIB if necessary, as set by
-+ * cairo_win32_surface_set_can_convert_to_dib.
-+ *
-+ * Return value: %CAIRO_STATUS_SUCCESS if the flag was successfully
-+ * retreived, or an error otherwise.
-+ * 
-+ */
-+cairo_status_t
-+cairo_win32_surface_get_can_convert_to_dib (cairo_surface_t *asurface, cairo_bool_t *can_convert)
-+{
-+    cairo_win32_surface_t *surface = (cairo_win32_surface_t*) asurface;
-+    if (surface->base.type != CAIRO_SURFACE_TYPE_WIN32)
-+	return CAIRO_STATUS_SURFACE_TYPE_MISMATCH;
-+
-+    *can_convert = ((surface->flags & CAIRO_WIN32_SURFACE_CAN_CONVERT_TO_DIB) != 0);
-+    return CAIRO_STATUS_SUCCESS;
-+}
-diff --git a/gfx/cairo/cairo/src/cairo-win32.h b/gfx/cairo/cairo/src/cairo-win32.h
---- a/gfx/cairo/cairo/src/cairo-win32.h
-+++ b/gfx/cairo/cairo/src/cairo-win32.h
-@@ -68,6 +68,12 @@ cairo_win32_surface_get_dc (cairo_surface_t *surface);
- cairo_public cairo_surface_t *
- cairo_win32_surface_get_image (cairo_surface_t *surface);
- 
-+cairo_public cairo_status_t
-+cairo_win32_surface_set_can_convert_to_dib (cairo_surface_t *surface, cairo_bool_t can_convert);
-+
-+cairo_public cairo_status_t
-+cairo_win32_surface_get_can_convert_to_dib (cairo_surface_t *surface, cairo_bool_t *can_convert);
-+
- #if CAIRO_HAS_WIN32_FONT
-