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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /gfx/2d/ConvolutionFilter.h | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/2d/ConvolutionFilter.h')
-rw-r--r-- | gfx/2d/ConvolutionFilter.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/gfx/2d/ConvolutionFilter.h b/gfx/2d/ConvolutionFilter.h new file mode 100644 index 0000000000..282222b8d6 --- /dev/null +++ b/gfx/2d/ConvolutionFilter.h @@ -0,0 +1,54 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef MOZILLA_GFX_CONVOLUTION_FILTER_H_ +#define MOZILLA_GFX_CONVOLUTION_FILTER_H_ + +#include "mozilla/UniquePtr.h" + +namespace skia { +class SkConvolutionFilter1D; +} + +namespace mozilla { +namespace gfx { + +class ConvolutionFilter final { + public: + ConvolutionFilter(); + ~ConvolutionFilter(); + + int32_t MaxFilter() const; + int32_t NumValues() const; + + bool GetFilterOffsetAndLength(int32_t aRowIndex, int32_t* aResultOffset, + int32_t* aResultLength); + + void ConvolveHorizontally(const uint8_t* aSrc, uint8_t* aDst, bool aHasAlpha); + void ConvolveVertically(uint8_t* const* aSrc, uint8_t* aDst, + int32_t aRowIndex, int32_t aRowSize, bool aHasAlpha); + + enum class ResizeMethod { BOX, LANCZOS3 }; + + bool ComputeResizeFilter(ResizeMethod aResizeMethod, int32_t aSrcSize, + int32_t aDstSize); + + static inline size_t PadBytesForSIMD(size_t aBytes) { + return (aBytes + 31) & ~31; + } + + const skia::SkConvolutionFilter1D& GetSkiaFilter() const { + return *mFilter.get(); + } + + private: + UniquePtr<skia::SkConvolutionFilter1D> mFilter; +}; + +} // namespace gfx +} // namespace mozilla + +#endif /* MOZILLA_GFX_CONVOLUTION_FILTER_H_ */ |