Index: src/lazy/SkLazyCachingPixelRef.cpp |
diff --git a/src/lazy/SkLazyCachingPixelRef.cpp b/src/lazy/SkLazyCachingPixelRef.cpp |
new file mode 100644 |
index 0000000000000000000000000000000000000000..5ded9f3bdedd1b984292b3e7960188c363f0f1d3 |
--- /dev/null |
+++ b/src/lazy/SkLazyCachingPixelRef.cpp |
@@ -0,0 +1,57 @@ |
+/* |
+ * 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(const SkImageInfo& info, |
scroggo
2013/12/06 14:50:33
Deleted by Hal?
|
+ SkData* data, |
+ SkBitmapFactory::DecodeProc proc) |
+ : INHERITED(info) |
+ , 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::onDecodePixels(void* pixels, size_t rowBytes) { |
+ SkASSERT(pixels); |
+ SkImageInfo info = this->info(); |
+ SkBitmapFactory::Target target = { pixels, rowBytes }; |
+ return fDecodeProc(fData->data(), fData->size(), &info, &target); |
+} |
+ |
+bool SkLazyCachingPixelRef::Install(SkBitmapFactory::DecodeProc proc, |
+ SkData* data, |
+ SkBitmap* destination) { |
+ SkImageInfo info; |
+ if (!proc(data->data(), data->size(), &info, NULL)) { |
+ return false; |
+ } |
+ |
+ SkAutoTUnref<SkLazyCachingPixelRef> ref( |
+ SkNEW_ARGS(SkLazyCachingPixelRef, (info, data, proc))); |
+ return ref->configure(destination) && destination->setPixelRef(ref); |
+} |