1 files changed, 73 insertions, 0 deletions
diff --git a/gfx/skia/skia/include/core/SkSerialProcs.h b/gfx/skia/skia/include/core/SkSerialProcs.h
new file mode 100644
index 0000000000..87e10d847c
--- /dev/null
+++ b/gfx/skia/skia/include/core/SkSerialProcs.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkSerialProcs_DEFINED
+#define SkSerialProcs_DEFINED
+
+#include "include/core/SkImage.h"
+#include "include/core/SkPicture.h"
+#include "include/core/SkTypeface.h"
+
+/**
+ *  A serial-proc is asked to serialize the specified object (e.g. picture or image).
+ *  If a data object is returned, it will be used (even if it is zero-length).
+ *  If null is returned, then Skia will take its default action.
+ *
+ *  The default action for pictures is to use Skia's internal format.
+ *  The default action for images is to encode either in its native format or PNG.
+ *  The default action for typefaces is to use Skia's internal format.
+ */
+
+typedef sk_sp<SkData> (*SkSerialPictureProc)(SkPicture*, void* ctx);
+typedef sk_sp<SkData> (*SkSerialImageProc)(SkImage*, void* ctx);
+typedef sk_sp<SkData> (*SkSerialTypefaceProc)(SkTypeface*, void* ctx);
+
+/**
+ *  Called with the encoded form of a picture (previously written with a custom
+ *  SkSerialPictureProc proc). Return a picture object, or nullptr indicating failure.
+ */
+typedef sk_sp<SkPicture> (*SkDeserialPictureProc)(const void* data, size_t length, void* ctx);
+
+/**
+ *  Called with the encoded from of an image. The proc can return an image object, or if it
+ *  returns nullptr, then Skia will take its default action to try to create an image from the data.
+ *
+ *  Note that unlike SkDeserialPictureProc and SkDeserialTypefaceProc, return nullptr from this
+ *  does not indicate failure, but is a signal for Skia to take its default action.
+ */
+typedef sk_sp<SkImage> (*SkDeserialImageProc)(const void* data, size_t length, void* ctx);
+
+/**
+ *  Called with the encoded form of a typeface (previously written with a custom
+ *  SkSerialTypefaceProc proc). Return a typeface object, or nullptr indicating failure.
+ */
+typedef sk_sp<SkTypeface> (*SkDeserialTypefaceProc)(const void* data, size_t length, void* ctx);
+
+struct SK_API SkSerialProcs {
+    SkSerialPictureProc fPictureProc = nullptr;
+    void*               fPictureCtx = nullptr;
+
+    SkSerialImageProc   fImageProc = nullptr;
+    void*               fImageCtx = nullptr;
+
+    SkSerialTypefaceProc fTypefaceProc = nullptr;
+    void*                fTypefaceCtx = nullptr;
+};
+
+struct SK_API SkDeserialProcs {
+    SkDeserialPictureProc   fPictureProc = nullptr;
+    void*                   fPictureCtx = nullptr;
+
+    SkDeserialImageProc     fImageProc = nullptr;
+    void*                   fImageCtx = nullptr;
+
+    SkDeserialTypefaceProc  fTypefaceProc = nullptr;
+    void*                   fTypefaceCtx = nullptr;
+};
+
+#endif
+