skia2/include/effects/SkTransparentShader.h
commit-bot@chromium.org 8b0e8ac5f5 Refactor read and write buffers.
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
2014-01-30 18:58:24 +00:00

38 lines
1.1 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 SkTransparentShader_DEFINED
#define SkTransparentShader_DEFINED
#include "SkShader.h"
class SK_API SkTransparentShader : public SkShader {
public:
SkTransparentShader() {}
virtual uint32_t getFlags() SK_OVERRIDE;
virtual bool setContext(const SkBitmap& device,
const SkPaint& paint,
const SkMatrix& matrix) SK_OVERRIDE;
virtual void shadeSpan(int x, int y, SkPMColor[], int count) SK_OVERRIDE;
virtual void shadeSpan16(int x, int y, uint16_t span[], int count) SK_OVERRIDE;
SK_DEVELOPER_TO_STRING()
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkTransparentShader)
private:
// these are a cache from the call to setContext()
const SkBitmap* fDevice;
uint8_t fAlpha;
SkTransparentShader(SkReadBuffer& buffer) : INHERITED(buffer) {}
typedef SkShader INHERITED;
};
#endif