add Make variations to return SkImage by sk_sp

src/image/SkImage_Raster.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 "SkImage_Base.h"
 #include "SkBitmap.h"
 #include "SkCanvas.h"
@@ skipping 45 matching lines @@
         if (0 == size) {
             return false;
         }
 
         if (minSize) {
             *minSize = size;
         }
         return true;
     }
 
-    SkImage_Raster(const SkImageInfo&, SkData*, size_t rb, SkColorTable*);
+    SkImage_Raster(const SkImageInfo&, sk_sp<SkData>, size_t rb, SkColorTable*);
     virtual ~SkImage_Raster();
 
     bool onReadPixels(const SkImageInfo&, void*, size_t, int srcX, int srcY, CachingHint) const override;
     bool onPeekPixels(SkPixmap*) const override;
     SkData* onRefEncoded(GrContext*) const override;
     bool getROPixels(SkBitmap*, CachingHint) const override;
     GrTexture* asTextureRef(GrContext*, const GrTextureParams&) const override;
-    SkImage* onNewSubset(const SkIRect&) const override;
+    sk_sp<SkImage> onMakeSubset(const SkIRect&) const override;
 
     // exposed for SkSurface_Raster via SkNewImageFromPixelRef
     SkImage_Raster(const SkImageInfo&, SkPixelRef*, const SkIPoint& origin, size_t rowBytes);
 
     SkPixelRef* getPixelRef() const { return fBitmap.pixelRef(); }
 
     bool isOpaque() const override;
     bool onAsLegacyBitmap(SkBitmap*, LegacyBitmapMode) const override;
 
     SkImage_Raster(const SkBitmap& bm)
@@ skipping 18 matching lines @@
     typedef SkImage_Base INHERITED;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
 static void release_data(void* addr, void* context) {
     SkData* data = static_cast<SkData*>(context);
     data->unref();
 }
 
-SkImage_Raster::SkImage_Raster(const Info& info, SkData* data, size_t rowBytes,
+SkImage_Raster::SkImage_Raster(const Info& info, sk_sp<SkData> data, size_t rowBytes,
                                SkColorTable* ctable)
     : INHERITED(info.width(), info.height(), kNeedNewImageUniqueID)
 {
-    data->ref();
     void* addr = const_cast<void*>(data->data());
 
-    fBitmap.installPixels(info, addr, rowBytes, ctable, release_data, data);
+    fBitmap.installPixels(info, addr, rowBytes, ctable, release_data, data.release());
     fBitmap.setImmutable();
     fBitmap.lockPixels();
 }
 
 SkImage_Raster::SkImage_Raster(const Info& info, SkPixelRef* pr, const SkIPoint& pixelRefOrigin,
                                size_t rowBytes)
     : INHERITED(info.width(), info.height(), pr->getGenerationID())
 {
     fBitmap.setInfo(info, rowBytes);
     fBitmap.setPixelRef(pr, pixelRefOrigin);
@@ skipping 35 matching lines @@
     if (!ctx) {
         return nullptr;
     }
 
     return GrRefCachedBitmapTexture(ctx, fBitmap, params);
 #endif
     
     return nullptr;
 }
 
-SkImage* SkImage_Raster::onNewSubset(const SkIRect& subset) const {
+sk_sp<SkImage> SkImage_Raster::onMakeSubset(const SkIRect& subset) const {
     // TODO : could consider heurist of sharing pixels, if subset is pretty close to complete
 
     SkImageInfo info = SkImageInfo::MakeN32(subset.width(), subset.height(), fBitmap.alphaType());
     SkAutoTUnref<SkSurface> surface(SkSurface::NewRaster(info));
     if (!surface) {
         return nullptr;
     }
     surface->getCanvas()->clear(0);
     surface->getCanvas()->drawImage(this, SkIntToScalar(-subset.x()), SkIntToScalar(-subset.y()),
                                     nullptr);
-    return surface->newImageSnapshot();
+    return sk_sp<SkImage>(surface->newImageSnapshot());
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
-SkImage* SkImage::NewRasterCopy(const SkImageInfo& info, const void* pixels, size_t rowBytes,
-                                SkColorTable* ctable) {
+sk_sp<SkImage> SkImage::MakeRasterCopy(const SkPixmap& pmap) {
     size_t size;
-    if (!SkImage_Raster::ValidArgs(info, rowBytes, ctable != nullptr, &size) || !pixels) {
+    if (!SkImage_Raster::ValidArgs(pmap.info(), pmap.rowBytes(),
+                                   pmap.ctable() != nullptr, &size) || !pmap.addr()) {
         return nullptr;
     }
 
     // Here we actually make a copy of the caller's pixel data
-    SkAutoDataUnref data(SkData::NewWithCopy(pixels, size));
-    return new SkImage_Raster(info, data, rowBytes, ctable);
+    sk_sp<SkData> data(SkData::NewWithCopy(pmap.addr(), size));
+    return sk_make_sp<SkImage_Raster>(pmap.info(), std::move(data), pmap.rowBytes(), pmap.ctable());
 }
 
 
-SkImage* SkImage::NewRasterData(const SkImageInfo& info, SkData* data, size_t rowBytes) {
+sk_sp<SkImage> SkImage::MakeRasterData(const SkImageInfo& info, sk_sp<SkData> data,
+                                       size_t rowBytes) {
     size_t size;
     if (!SkImage_Raster::ValidArgs(info, rowBytes, false, &size) || !data) {
         return nullptr;
     }
 
     // did they give us enough data?
     if (data->size() < size) {
         return nullptr;
     }
 
     SkColorTable* ctable = nullptr;
-    return new SkImage_Raster(info, data, rowBytes, ctable);
+    return sk_make_sp<SkImage_Raster>(info, std::move(data), rowBytes, ctable);
 }
 
-SkImage* SkImage::NewFromRaster(const SkImageInfo& info, const void* pixels, size_t rowBytes,
-                                RasterReleaseProc proc, ReleaseContext ctx) {
+sk_sp<SkImage> SkImage::MakeFromRaster(const SkPixmap& pmap, RasterReleaseProc proc,
+                                       ReleaseContext ctx) {
     size_t size;
-    if (!SkImage_Raster::ValidArgs(info, rowBytes, false, &size) || !pixels) {
+    if (!SkImage_Raster::ValidArgs(pmap.info(), pmap.rowBytes(), false, &size) || !pmap.addr()) {
         return nullptr;
     }
 
-    SkColorTable* ctable = nullptr;
-    SkAutoDataUnref data(SkData::NewWithProc(pixels, size, proc, ctx));
-    return new SkImage_Raster(info, data, rowBytes, ctable);
+    sk_sp<SkData> data(SkData::NewWithProc(pmap.addr(), size, proc, ctx));
+    return sk_make_sp<SkImage_Raster>(pmap.info(), std::move(data), pmap.rowBytes(), pmap.ctable());
 }
 
-SkImage* SkNewImageFromPixelRef(const SkImageInfo& info, SkPixelRef* pr,
-                                const SkIPoint& pixelRefOrigin, size_t rowBytes) {
+sk_sp<SkImage> SkMakeImageFromPixelRef(const SkImageInfo& info, SkPixelRef* pr,
+                                       const SkIPoint& pixelRefOrigin, size_t rowBytes) {
     if (!SkImage_Raster::ValidArgs(info, rowBytes, false, nullptr)) {
         return nullptr;
     }
-    return new SkImage_Raster(info, pr, pixelRefOrigin, rowBytes);
+    return sk_make_sp<SkImage_Raster>(info, pr, pixelRefOrigin, rowBytes);
 }
 
-SkImage* SkNewImageFromRasterBitmap(const SkBitmap& bm, ForceCopyMode forceCopy) {
+sk_sp<SkImage> SkMakeImageFromRasterBitmap(const SkBitmap& bm, ForceCopyMode forceCopy) {
     SkASSERT(nullptr == bm.getTexture());
 
     bool hasColorTable = false;
     if (kIndex_8_SkColorType == bm.colorType()) {
         SkAutoLockPixels autoLockPixels(bm);
         hasColorTable = bm.getColorTable() != nullptr;
     }
 
     if (!SkImage_Raster::ValidArgs(bm.info(), bm.rowBytes(), hasColorTable, nullptr)) {
         return nullptr;
     }
 
-    SkImage* image = nullptr;
+    sk_sp<SkImage> image;
     if (kYes_ForceCopyMode == forceCopy || !bm.isImmutable()) {
         SkBitmap tmp(bm);
         tmp.lockPixels();
-        if (tmp.getPixels()) {
-            image = SkImage::NewRasterCopy(tmp.info(), tmp.getPixels(), tmp.rowBytes(),
-                                           tmp.getColorTable());
+        SkPixmap pmap;
+        if (tmp.getPixels() && tmp.peekPixels(&pmap)) {
+            image = SkImage::MakeRasterCopy(pmap);
         }
     } else {
-        image = new SkImage_Raster(bm);
+        image = sk_make_sp<SkImage_Raster>(bm);
     }
     return image;
 }
 
 const SkPixelRef* SkBitmapImageGetPixelRef(const SkImage* image) {
     return ((const SkImage_Raster*)image)->getPixelRef();
 }
 
 bool SkImage_Raster::isOpaque() const {
     return fBitmap.isOpaque();
 }
 
 bool SkImage_Raster::onAsLegacyBitmap(SkBitmap* bitmap, LegacyBitmapMode mode) const {
     if (kRO_LegacyBitmapMode == mode) {
         // When we're a snapshot from a surface, our bitmap may not be marked immutable
         // even though logically always we are, but in that case we can't physically share our
         // pixelref since the caller might call setImmutable() themselves
         // (thus changing our state).
         if (fBitmap.isImmutable()) {
             bitmap->setInfo(fBitmap.info(), fBitmap.rowBytes());
             bitmap->setPixelRef(fBitmap.pixelRef(), fBitmap.pixelRefOrigin());
             return true;
         }
     }
     return this->INHERITED::onAsLegacyBitmap(bitmap, mode);
 }