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Unified Diff: src/codec/SkSwizzler.h

Issue 972743003: Revert of Add SkCodec, including PNG implementation. (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Created 5 years, 10 months ago
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Index: src/codec/SkSwizzler.h
diff --git a/src/codec/SkSwizzler.h b/src/codec/SkSwizzler.h
deleted file mode 100644
index 0bf2ee306a9377c64e5691260b2e9272ea853e06..0000000000000000000000000000000000000000
--- a/src/codec/SkSwizzler.h
+++ /dev/null
@@ -1,94 +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 SkSwizzler_DEFINED
-#define SkSwizzler_DEFINED
-
-#include "SkTypes.h"
-#include "SkColor.h"
-#include "SkImageInfo.h"
-
-class SkSwizzler : public SkNoncopyable {
-public:
- /**
- * Enum describing the config of the source data.
- */
- enum SrcConfig {
- kGray, // 1 byte per pixel
- kIndex, // 1 byte per pixel
- kRGB, // 3 bytes per pixel
- kRGBX, // 4 byes per pixel (ignore 4th)
- kRGBA, // 4 bytes per pixel
- kRGB_565 // 2 bytes per pixel
- };
-
- static int BytesPerPixel(SrcConfig sc) {
- switch (sc) {
- case kGray:
- case kIndex:
- return 1;
- case kRGB:
- return 3;
- case kRGBX:
- case kRGBA:
- return 4;
- case kRGB_565:
- return 2;
- default:
- SkDebugf("invalid source config passed to BytesPerPixel\n");
- return -1;
- }
- }
-
- /**
- * Create a new SkSwizzler.
- * @param sc SrcConfig
- * @param info dimensions() describe both the src and the dst.
- * Other fields describe the dst.
- * @param dst Destination to write pixels. Must match info and dstRowBytes
- * @param dstRowBytes rowBytes for dst.
- * @param skipZeroes Whether to skip writing zeroes. Useful if dst is
- * zero-initialized. The implementation may or may not respect this.
- * @return A new SkSwizzler or NULL on failure.
- */
- static SkSwizzler* CreateSwizzler(SrcConfig sc, const SkPMColor* ctable,
- const SkImageInfo& info, void* dst,
- size_t dstRowBytes, bool skipZeroes);
- /**
- * Swizzle the next line. Call height times, once for each row of source.
- * @param src The next row of the source data.
- * @return Whether the row had non-opaque alpha.
- */
- bool next(const uint8_t* SK_RESTRICT src);
-private:
- /**
- * Method for converting raw data to Skia pixels.
- * @param dstRow Row in which to write the resulting pixels.
- * @param src Row of src data, in format specified by SrcConfig
- * @param width Width in pixels
- * @param bpp bytes per pixel of the source.
- * @param y Line of source.
- * @param ctable Colors (used for kIndex source).
- */
- typedef bool (*RowProc)(void* SK_RESTRICT dstRow,
- const uint8_t* SK_RESTRICT src,
- int width, int bpp, int y,
- const SkPMColor ctable[]);
-
- const RowProc fRowProc;
- const SkPMColor* fColorTable; // Unowned pointer
- const int fSrcPixelSize;
- const SkImageInfo fDstInfo;
- void* fDstRow;
- const size_t fDstRowBytes;
- int fCurrY;
-
- SkSwizzler(RowProc proc, const SkPMColor* ctable, int srcBpp,
- const SkImageInfo& info, void* dst, size_t rowBytes);
-
-};
-#endif // SkSwizzler_DEFINED
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