SkCachingPixelRef to use SkImageGenerator

src/lazy/SkLazyCachingPixelRef.cpp

-/*
- * Copyright 2013 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "Sk64.h"
-#include "SkColorTable.h"
-#include "SkData.h"
-#include "SkImageDecoder.h"
-#include "SkImagePriv.h"
-#include "SkLazyCachingPixelRef.h"
-#include "SkPostConfig.h"
-
-SkLazyCachingPixelRef::SkLazyCachingPixelRef(SkData* data,
-                                             SkBitmapFactory::DecodeProc proc)
-    : fDecodeProc(proc) {
-    if (NULL == data) {
-        fData = SkData::NewEmpty();
-    } else {
-        fData = data;
-        fData->ref();
-    }
-    if (NULL == fDecodeProc) {  // use a reasonable default.
-        fDecodeProc = SkImageDecoder::DecodeMemoryToTarget;
-    }
-    this->setImmutable();
-}
-
-SkLazyCachingPixelRef::~SkLazyCachingPixelRef() {
-    SkASSERT(fData != NULL);
-    fData->unref();
-}
-
-bool SkLazyCachingPixelRef::onDecodeInfo(SkImageInfo* info) {
-    SkASSERT(info);
-    return fDecodeProc(fData->data(), fData->size(), info, NULL);
-}
-
-bool SkLazyCachingPixelRef::onDecodePixels(const SkImageInfo& passedInfo,
-                                           void* pixels, size_t rowBytes) {
-    SkASSERT(pixels);
-    SkImageInfo info;
-    if (!this->getInfo(&info)) {
-        return false;
-    }
-    if (passedInfo != info) {
-        return false;  // This implementation can not handle this case.
-    }
-    SkBitmapFactory::Target target = {pixels, rowBytes};
-    return fDecodeProc(fData->data(), fData->size(), &info, &target);
-}
-
-bool SkLazyCachingPixelRef::Install(SkBitmapFactory::DecodeProc proc,
-                                    SkData* data,
-                                    SkBitmap* destination) {
-    SkAutoTUnref<SkLazyCachingPixelRef> ref(
-        SkNEW_ARGS(SkLazyCachingPixelRef, (data, proc)));
-    return ref->configure(destination) && destination->setPixelRef(ref);
-}