f16e2a2e92
Reason for revert: shader compilation failures error C1008: undefined variable "null" https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Ubuntu-GCC-ShuttleA-GPU-GTX660-x86_64-Debug/builds/4064/steps/dm/logs/stdio Original issue's description: > Add gpu implementation of SkAvoidXfermode > GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1658623002 > > TBR=bsalomon@google.com > > Committed: https://skia.googlesource.com/skia/+/15691a055db9b68c9b48f589e48d8a85888cf83f TBR=egdaniel@google.com,bsalomon@google.com,robertphillips@google.com # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true Review URL: https://codereview.chromium.org/1663093002
71 lines
2.3 KiB
C++
71 lines
2.3 KiB
C++
/*
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* Copyright 2006 The Android Open Source Project
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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 SkAvoidXfermode_DEFINED
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#define SkAvoidXfermode_DEFINED
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#include "SkColor.h"
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#include "SkTypes.h"
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#include "SkXfermode.h"
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/** \class AvoidXfermode
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This xfermode will draw the src everywhere except on top of the specified
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color.
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*/
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class SkAvoidXfermode : public SkXfermode {
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public:
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enum Mode {
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kAvoidColor_Mode, //!< draw everywhere except on the opColor
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kTargetColor_Mode //!< draw only on top of the opColor
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};
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/** This xfermode draws, or doesn't draw, based on the destination's
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distance from an op-color.
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There are two modes, and each mode interprets a tolerance value.
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Avoid: In this mode, drawing is allowed only on destination pixels that
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are different from the op-color.
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Tolerance near 0: avoid any colors even remotely similar to the op-color
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Tolerance near 255: avoid only colors nearly identical to the op-color
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Target: In this mode, drawing only occurs on destination pixels that
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are similar to the op-color
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Tolerance near 0: draw only on colors that are nearly identical to the op-color
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Tolerance near 255: draw on any colors even remotely similar to the op-color
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*/
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static SkAvoidXfermode* Create(SkColor opColor, U8CPU tolerance, Mode mode) {
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return new SkAvoidXfermode(opColor, tolerance, mode);
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}
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// overrides from SkXfermode
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void xfer32(SkPMColor dst[], const SkPMColor src[], int count,
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const SkAlpha aa[]) const override;
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void xfer16(uint16_t dst[], const SkPMColor src[], int count,
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const SkAlpha aa[]) const override;
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void xferA8(SkAlpha dst[], const SkPMColor src[], int count,
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const SkAlpha aa[]) const override;
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SK_TO_STRING_OVERRIDE()
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SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(AvoidXfermode)
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protected:
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SkAvoidXfermode(SkColor opColor, U8CPU tolerance, Mode mode);
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void flatten(SkWriteBuffer&) const override;
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private:
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SkColor fOpColor;
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uint32_t fDistMul; // x.14 cached from fTolerance
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uint8_t fTolerance;
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Mode fMode;
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typedef SkXfermode INHERITED;
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};
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#endif
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