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Diffstat (limited to 'include/codec/SkCodecAnimation.h')
-rw-r--r-- | include/codec/SkCodecAnimation.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/include/codec/SkCodecAnimation.h b/include/codec/SkCodecAnimation.h new file mode 100644 index 0000000000..9a4daff8ae --- /dev/null +++ b/include/codec/SkCodecAnimation.h @@ -0,0 +1,43 @@ +/* + * Copyright 2016 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#ifndef SkCodecAnimation_DEFINED +#define SkCodecAnimation_DEFINED + +namespace SkCodecAnimation { + /** + * This specifies how the next frame is based on this frame. + * + * Names are based on the GIF 89a spec. + * + * The numbers correspond to values in a GIF. + */ + enum class DisposalMethod { + /** + * The next frame should be drawn on top of this one. + * + * In a GIF, a value of 0 (not specified) is also treated as Keep. + */ + kKeep = 1, + + /** + * Similar to Keep, except the area inside this frame's rectangle + * should be cleared to the BackGround color (transparent) before + * drawing the next frame. + */ + kRestoreBGColor = 2, + + /** + * The next frame should be drawn on top of the previous frame - i.e. + * disregarding this one. + * + * In a GIF, a value of 4 is also treated as RestorePrevious. + */ + kRestorePrevious = 3, + }; +}; +#endif // SkCodecAnimation_DEFINED |