1 files changed, 26 insertions, 0 deletions
diff --git a/core/fxge/dib/scanlinecomposer_iface.h b/core/fxge/dib/scanlinecomposer_iface.h
new file mode 100644
index 0000000000..2a8fbbccdf
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+++ b/core/fxge/dib/scanlinecomposer_iface.h
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+// Copyright 2017 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#ifndef CORE_FXGE_DIB_SCANLINECOMPOSER_IFACE_H_
+#define CORE_FXGE_DIB_SCANLINECOMPOSER_IFACE_H_
+
+#include "core/fxge/fx_dib.h"
+
+class ScanlineComposerIface {
+ public:
+  virtual ~ScanlineComposerIface() {}
+
+  virtual void ComposeScanline(int line,
+                               const uint8_t* scanline,
+                               const uint8_t* scan_extra_alpha) = 0;
+
+  virtual bool SetInfo(int width,
+                       int height,
+                       FXDIB_Format src_format,
+                       uint32_t* pSrcPalette) = 0;
+};
+
+#endif  // CORE_FXGE_DIB_SCANLINECOMPOSER_IFACE_H_