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.
*/ enumclass 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,
};
/** * How to blend the current frame.
*/ enumclass Blend { /** * Blend with the prior frame as if using SkBlendMode::kSrcOver.
*/
kSrcOver,
/** * Blend with the prior frame as if using SkBlendMode::kSrc. * * This frame's pixels replace the destination pixels.
*/
kSrc,
};
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