8b0e8ac5f5
Eliminates SkFlattenable{Read,Write}Buffer, promoting SkOrdered{Read,Write}Buffer
a step each in the hierarchy.
What used to be this:
SkFlattenableWriteBuffer -> SkOrderedWriteBuffer
SkFlattenableReadBuffer -> SkOrderedReadBuffer
SkFlattenableReadBuffer -> SkValidatingReadBuffer
is now
SkWriteBuffer
SkReadBuffer -> SkValidatingReadBuffer
Benefits:
- code is simpler, names are less wordy
- the generic SkFlattenableFooBuffer code in SkPaint was incorrect; removed
- write buffers are completely devirtualized, important for record speed
This refactoring was mostly mechanical. You aren't going to find anything
interesting in files with less than 10 lines changed.
BUG=skia:
R=reed@google.com, scroggo@google.com, djsollen@google.com, mtklein@google.com
Author: mtklein@chromium.org
Review URL: https://codereview.chromium.org/134163010
git-svn-id: http://skia.googlecode.com/svn/trunk@13245 2bbb7eff-a529-9590-31e7-b0007b416f81
66 lines
2.2 KiB
C++
66 lines
2.2 KiB
C++
/*
|
|
* 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 SkAvoidXfermode_DEFINED
|
|
#define SkAvoidXfermode_DEFINED
|
|
|
|
#include "SkXfermode.h"
|
|
|
|
/** \class SkAvoidXfermode
|
|
|
|
This xfermode will draw the src everywhere except on top of the specified
|
|
color.
|
|
*/
|
|
class SK_API SkAvoidXfermode : public SkXfermode {
|
|
public:
|
|
enum Mode {
|
|
kAvoidColor_Mode, //!< draw everywhere except on the opColor
|
|
kTargetColor_Mode //!< draw only on top of the opColor
|
|
};
|
|
|
|
/** This xfermode draws, or doesn't draw, based on the destination's
|
|
distance from an op-color.
|
|
|
|
There are two modes, and each mode interprets a tolerance value.
|
|
|
|
Avoid: In this mode, drawing is allowed only on destination pixels that
|
|
are different from the op-color.
|
|
Tolerance near 0: avoid any colors even remotely similar to the op-color
|
|
Tolerance near 255: avoid only colors nearly identical to the op-color
|
|
|
|
Target: In this mode, drawing only occurs on destination pixels that
|
|
are similar to the op-color
|
|
Tolerance near 0: draw only on colors that are nearly identical to the op-color
|
|
Tolerance near 255: draw on any colors even remotely similar to the op-color
|
|
*/
|
|
SkAvoidXfermode(SkColor opColor, U8CPU tolerance, Mode mode);
|
|
|
|
// overrides from SkXfermode
|
|
virtual void xfer32(SkPMColor dst[], const SkPMColor src[], int count,
|
|
const SkAlpha aa[]) const SK_OVERRIDE;
|
|
virtual void xfer16(uint16_t dst[], const SkPMColor src[], int count,
|
|
const SkAlpha aa[]) const SK_OVERRIDE;
|
|
virtual void xferA8(SkAlpha dst[], const SkPMColor src[], int count,
|
|
const SkAlpha aa[]) const SK_OVERRIDE;
|
|
|
|
SK_DEVELOPER_TO_STRING()
|
|
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkAvoidXfermode)
|
|
|
|
protected:
|
|
SkAvoidXfermode(SkReadBuffer&);
|
|
virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
|
|
|
|
private:
|
|
SkColor fOpColor;
|
|
uint32_t fDistMul; // x.14
|
|
Mode fMode;
|
|
|
|
typedef SkXfermode INHERITED;
|
|
};
|
|
|
|
#endif
|