Big Cleanup: SkBitmapFactory, SkLazyPixelRef, SkImageCache

src/lazy/SkBitmapFactory.cpp

-/*
- * Copyright 2012 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "SkBitmapFactory.h"
-
-#include "SkBitmap.h"
-#include "SkData.h"
-#include "SkImageCache.h"
-#include "SkImagePriv.h"
-#include "SkLazyPixelRef.h"
-
-SK_DEFINE_INST_COUNT(SkBitmapFactory::CacheSelector)
-
-SkBitmapFactory::SkBitmapFactory(SkBitmapFactory::DecodeProc proc)
-    : fDecodeProc(proc)
-    , fImageCache(NULL)
-    , fCacheSelector(NULL) {
-    SkASSERT(fDecodeProc != NULL);
-}
-
-SkBitmapFactory::~SkBitmapFactory() {
-    SkSafeUnref(fImageCache);
-    SkSafeUnref(fCacheSelector);
-}
-
-void SkBitmapFactory::setImageCache(SkImageCache *cache) {
-    SkRefCnt_SafeAssign(fImageCache, cache);
-    if (cache != NULL) {
-        SkSafeUnref(fCacheSelector);
-        fCacheSelector = NULL;
-    }
-}
-
-void SkBitmapFactory::setCacheSelector(CacheSelector* selector) {
-    SkRefCnt_SafeAssign(fCacheSelector, selector);
-    if (selector != NULL) {
-        SkSafeUnref(fImageCache);
-        fImageCache = NULL;
-    }
-}
-
-bool SkBitmapFactory::installPixelRef(SkData* data, SkBitmap* dst) {
-    if (NULL == data || 0 == data->size() || dst == NULL) {
-        return false;
-    }
-
-    SkImageInfo info;
-    if (!fDecodeProc(data->data(), data->size(), &info, NULL)) {
-        return false;
-    }
-
-    SkBitmap::Config config = SkImageInfoToBitmapConfig(info);
-
-    Target target;
-    // FIMXE: There will be a problem if this rowbytes is calculated differently from
-    // in SkLazyPixelRef.
-    target.fRowBytes = SkImageMinRowBytes(info);
-    dst->setConfig(config, info.fWidth, info.fHeight, target.fRowBytes, info.fAlphaType);
-
-    // fImageCache and fCacheSelector are mutually exclusive.
-    SkASSERT(NULL == fImageCache || NULL == fCacheSelector);
-
-    SkImageCache* cache = NULL == fCacheSelector ? fImageCache : fCacheSelector->selectCache(info);
-
-    if (cache != NULL) {
-        // Now set a new LazyPixelRef on dst.
-        SkAutoTUnref<SkLazyPixelRef> lazyRef(SkNEW_ARGS(SkLazyPixelRef,
-                                                        (data, fDecodeProc, cache)));
-        dst->setPixelRef(lazyRef);
-        return true;
-    } else {
-        dst->allocPixels();
-        target.fAddr = dst->getPixels();
-        return fDecodeProc(data->data(), data->size(), &info, &target);
-    }
-}