diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /gfx/skia/skia/include/effects/SkTableMaskFilter.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/skia/skia/include/effects/SkTableMaskFilter.h')
-rw-r--r-- | gfx/skia/skia/include/effects/SkTableMaskFilter.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/gfx/skia/skia/include/effects/SkTableMaskFilter.h b/gfx/skia/skia/include/effects/SkTableMaskFilter.h new file mode 100644 index 0000000000..412f138353 --- /dev/null +++ b/gfx/skia/skia/include/effects/SkTableMaskFilter.h @@ -0,0 +1,41 @@ +/* + * Copyright 2006 The Android Open Source Project + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#ifndef SkTableMaskFilter_DEFINED +#define SkTableMaskFilter_DEFINED + +#include "include/core/SkScalar.h" +#include "include/core/SkTypes.h" + +#include <cstdint> + +class SkMaskFilter; + +/** \class SkTableMaskFilter + + Applies a table lookup on each of the alpha values in the mask. + Helper methods create some common tables (e.g. gamma, clipping) + */ +class SK_API SkTableMaskFilter { +public: + /** Utility that sets the gamma table + */ + static void MakeGammaTable(uint8_t table[256], SkScalar gamma); + + /** Utility that creates a clipping table: clamps values below min to 0 + and above max to 255, and rescales the remaining into 0..255 + */ + static void MakeClipTable(uint8_t table[256], uint8_t min, uint8_t max); + + static SkMaskFilter* Create(const uint8_t table[256]); + static SkMaskFilter* CreateGamma(SkScalar gamma); + static SkMaskFilter* CreateClip(uint8_t min, uint8_t max); + + SkTableMaskFilter() = delete; +}; + +#endif |