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56 lines
1.8 KiB
C++
56 lines
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_image_AnimationParams_h
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#define mozilla_image_AnimationParams_h
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#include <stdint.h>
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#include "mozilla/gfx/Rect.h"
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#include "FrameTimeout.h"
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namespace mozilla {
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namespace image {
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enum class BlendMethod : int8_t {
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// All color components of the frame, including alpha, overwrite the current
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// contents of the frame's output buffer region.
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SOURCE,
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// The frame should be composited onto the output buffer based on its alpha,
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// using a simple OVER operation.
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OVER
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};
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enum class DisposalMethod : int8_t {
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CLEAR_ALL = -1, // Clear the whole image, revealing what's underneath.
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NOT_SPECIFIED, // Leave the frame and let the new frame draw on top.
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KEEP, // Leave the frame and let the new frame draw on top.
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CLEAR, // Clear the frame's area, revealing what's underneath.
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RESTORE_PREVIOUS // Restore the previous (composited) frame.
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};
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struct AnimationParams {
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AnimationParams(const gfx::IntRect& aBlendRect, const FrameTimeout& aTimeout,
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uint32_t aFrameNum, BlendMethod aBlendMethod,
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DisposalMethod aDisposalMethod)
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: mBlendRect(aBlendRect),
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mTimeout(aTimeout),
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mFrameNum(aFrameNum),
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mBlendMethod(aBlendMethod),
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mDisposalMethod(aDisposalMethod) {}
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gfx::IntRect mBlendRect;
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FrameTimeout mTimeout;
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uint32_t mFrameNum;
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BlendMethod mBlendMethod;
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DisposalMethod mDisposalMethod;
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};
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} // namespace image
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} // namespace mozilla
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#endif // mozilla_image_AnimationParams_h
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