1 files changed, 67 insertions, 0 deletions
diff --git a/gfx/skia/skia/src/core/SkPicturePlayback.h b/gfx/skia/skia/src/core/SkPicturePlayback.h
new file mode 100644
index 0000000000..fdad38e92d
--- /dev/null
+++ b/gfx/skia/skia/src/core/SkPicturePlayback.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkPicturePlayback_DEFINED
+#define SkPicturePlayback_DEFINED
+
+#include "include/core/SkM44.h"
+#include "include/core/SkPicture.h"
+#include "include/private/base/SkNoncopyable.h"
+#include "src/core/SkPictureFlat.h"
+
+#include <cstddef>
+#include <cstdint>
+
+class SkCanvas;
+class SkPictureData;
+class SkReadBuffer;
+
+// The basic picture playback class replays the provided picture into a canvas.
+class SkPicturePlayback final : SkNoncopyable {
+public:
+    SkPicturePlayback(const SkPictureData* data)
+        : fPictureData(data)
+        , fCurOffset(0) {
+    }
+
+    void draw(SkCanvas* canvas, SkPicture::AbortCallback*, SkReadBuffer* buffer);
+
+    // TODO: remove the curOp calls after cleaning up GrGatherDevice
+    // Return the ID of the operation currently being executed when playing
+    // back. 0 indicates no call is active.
+    size_t curOpID() const { return fCurOffset; }
+    void resetOpID() { fCurOffset = 0; }
+
+private:
+    const SkPictureData* fPictureData;
+
+    // The offset of the current operation when within the draw method
+    size_t fCurOffset;
+
+    void handleOp(SkReadBuffer* reader,
+                  DrawType op,
+                  uint32_t size,
+                  SkCanvas* canvas,
+                  const SkM44& initialMatrix);
+
+    class AutoResetOpID {
+    public:
+        AutoResetOpID(SkPicturePlayback* playback) : fPlayback(playback) { }
+        ~AutoResetOpID() {
+            if (fPlayback) {
+                fPlayback->resetOpID();
+            }
+        }
+
+    private:
+        SkPicturePlayback* fPlayback;
+    };
+
+    using INHERITED = SkNoncopyable;
+};
+
+#endif