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Unified Diff: include/codec/SkScaledCodec.h

Issue 1294593002: Revert of SkScaledCodec class (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Created 5 years, 4 months ago
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Index: include/codec/SkScaledCodec.h
diff --git a/include/codec/SkScaledCodec.h b/include/codec/SkScaledCodec.h
deleted file mode 100644
index 1bcdf085b213f7eaab1cb9d9eca51a491138c58f..0000000000000000000000000000000000000000
--- a/include/codec/SkScaledCodec.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Copyright 2015 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-#ifndef SkScaledCodec_DEFINED
-#define SkScaledCodec_DEFINED
-
-#include "SkCodec.h"
-#include "SkScanlineDecoder.h"
-
-class SkScanlineDecoder;
-class SkStream;
-
-/**
- * This class implements scaling, by sampling scanlines in the y direction.
- * x-wise sampling is implemented in the swizzler, when getScanlines() is called.
- */
-class SkScaledCodec : public SkCodec {
-public:
- static SkCodec* NewFromStream(SkStream*);
- static SkCodec* NewFromData(SkData*);
-
- virtual ~SkScaledCodec();
-
- /**
- * returns whether a destination's dimensions are supported for down sampling
- */
- static bool DimensionsSupportedForSampling(const SkImageInfo& srcInfo,
- const SkImageInfo& dstInfo) {
- // heights must be equal as no native y sampling is supported
- if (dstInfo.height() != srcInfo.height()) {
- return false;
- }
- // only support down sampling, dstWidth cannot be larger that srcWidth
- if(dstInfo.width() > srcInfo.width()) {
- return false;
- }
- return true;
- }
-
- static void ComputeSampleSize(const SkImageInfo& dstInfo, const SkImageInfo& srcInfo,
- int* sampleSizeX, int* sampleSizeY);
-
-protected:
- /**
- * Recommend a set of destination dimensions given a requested scale
- */
- SkISize onGetScaledDimensions(float desiredScale) const override;
-
- Result onGetPixels(const SkImageInfo&, void*, size_t, const Options&, SkPMColor*, int*)
- override;
- SkEncodedFormat onGetEncodedFormat() const override {
- return fScanlineDecoder->getEncodedFormat();
- }
-
- bool onReallyHasAlpha() const override {
- return fScanlineDecoder->reallyHasAlpha();
- }
-
-private:
-
- SkAutoTDelete<SkScanlineDecoder> fScanlineDecoder;
-
- explicit SkScaledCodec(SkScanlineDecoder*);
-
- typedef SkCodec INHERITED;
-};
-#endif // SkScaledCodec_DEFINED
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