c19b9c5886
Expose a android framework-only function to reset the saved clip geometry a device-space pixel rect (e.g. the device clip restriction). Using a regular intersect clip operation after this call should match the behavior of the legacy replace operation with a clip restriction. This is a step to removing the separate device clip restriction API and the deprecated expanding clip ops, as part of the plan described here: https://docs.google.com/document/d/1ddIk74A1rL5Kj5kGcnInOYKVAXs3J2IsSgU5BLit0Ng/edit?usp=sharing Bug: skia:10207 Bug: skia:10209 Change-Id: I57d3bcc7b5b257935eb2bf2099d472f2ef354d5b Reviewed-on: https://skia-review.googlesource.com/c/skia/+/298824 Reviewed-by: Derek Sollenberger <djsollen@google.com> Reviewed-by: Mike Reed <reed@google.com> Commit-Queue: Michael Ludwig <michaelludwig@google.com>
66 lines
2.0 KiB
C++
66 lines
2.0 KiB
C++
/*
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* Copyright 2017 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkAndroidFrameworkUtils_DEFINED
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#define SkAndroidFrameworkUtils_DEFINED
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#include "include/core/SkRefCnt.h"
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#include "include/core/SkTypes.h"
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#ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK
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class SkCanvas;
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struct SkIRect;
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struct SkRect;
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class SkSurface;
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/**
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* SkAndroidFrameworkUtils expose private APIs used only by Android framework.
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*/
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class SkAndroidFrameworkUtils {
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public:
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#if SK_SUPPORT_GPU
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/**
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* clipWithStencil draws the current clip into a stencil buffer with reference value and mask
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* set to 0x1. This function works only on a GPU canvas.
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*
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* @param canvas A GPU canvas that has a non-empty clip.
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*
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* @return true on success or false if clip is empty or not a GPU canvas.
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*/
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static bool clipWithStencil(SkCanvas* canvas);
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#endif //SK_SUPPORT_GPU
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static void SafetyNetLog(const char*);
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static sk_sp<SkSurface> getSurfaceFromCanvas(SkCanvas* canvas);
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static int SaveBehind(SkCanvas* canvas, const SkRect* subset);
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// Operating within the canvas' clip stack, this resets the geometry of the clip to be an
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// intersection with the device-space 'rect'. If 'rect' is null, this will use the rect that
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// was last set using androidFramework_setDeviceClipRestriction on the canvas. If that was never
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// set, it will restrict the clip to the canvas' dimensions.
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//
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// TODO: Eventually, make 'rect' non-optional and no longer store the restriction per canvas.
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static void ReplaceClip(SkCanvas* canvas, const SkIRect* rect = nullptr);
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/**
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* Unrolls a chain of nested SkPaintFilterCanvas to return the base wrapped canvas.
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*
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* @param canvas A SkPaintFilterCanvas or any other SkCanvas subclass.
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*
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* @return SkCanvas that was found in the innermost SkPaintFilterCanvas.
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*/
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static SkCanvas* getBaseWrappedCanvas(SkCanvas* canvas);
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};
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#endif // SK_BUILD_FOR_ANDROID_ANDROID
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#endif // SkAndroidFrameworkUtils_DEFINED
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