Revert "Only store width and height on SkPixelRef"

This reverts commit 2cbb6662e329981840f90ef4edd62f70f69e6030.

Reason for revert: Likely cause of Chromium DEPS roll failure; speculative revert.

Original change's description:
> Only store width and height on SkPixelRef
>
> Bug: skia:6535
> Change-Id: Id91e8d1e82f593be7d4b23ca5abde752f2666a77
> Reviewed-on: https://skia-review.googlesource.com/14105
> Commit-Queue: Matt Sarett <msarett@google.com>
> Reviewed-by: Mike Reed <reed@google.com>
>

TBR=djsollen@google.com,msarett@google.com,reed@google.com,stani@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: I12a024a71833f33432d5ea8cffdfc642b8b4240a
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/14644
Reviewed-by: Ben Wagner <benjaminwagner@google.com>
Commit-Queue: Ben Wagner <benjaminwagner@google.com>
diff --git a/src/core/SkBitmap.cpp b/src/core/SkBitmap.cpp
index 8bd2684..1ba2968 100644
--- a/src/core/SkBitmap.cpp
+++ b/src/core/SkBitmap.cpp
@@ -171,6 +171,9 @@
     }
     if (fInfo.alphaType() != newAlphaType) {
         fInfo = fInfo.makeAlphaType(newAlphaType);
+        if (fPixelRef) {
+            fPixelRef->changeAlphaType(newAlphaType);
+        }
     }
     SkDEBUGCODE(this->validate();)
     return true;
@@ -195,15 +198,32 @@
 #ifdef SK_DEBUG
     if (pr) {
         if (kUnknown_SkColorType != fInfo.colorType()) {
-            SkASSERT(fInfo.width() <= pr->width());
-            SkASSERT(fInfo.height() <= pr->height());
+            const SkImageInfo& prInfo = pr->info();
+            SkASSERT(fInfo.width() <= prInfo.width());
+            SkASSERT(fInfo.height() <= prInfo.height());
+            SkASSERT(fInfo.colorType() == prInfo.colorType());
+            switch (prInfo.alphaType()) {
+                case kUnknown_SkAlphaType:
+                    SkASSERT(fInfo.alphaType() == kUnknown_SkAlphaType);
+                    break;
+                case kOpaque_SkAlphaType:
+                case kPremul_SkAlphaType:
+                    SkASSERT(fInfo.alphaType() == kOpaque_SkAlphaType ||
+                             fInfo.alphaType() == kPremul_SkAlphaType);
+                    break;
+                case kUnpremul_SkAlphaType:
+                    SkASSERT(fInfo.alphaType() == kOpaque_SkAlphaType ||
+                             fInfo.alphaType() == kUnpremul_SkAlphaType);
+                    break;
+            }
         }
     }
 #endif
 
     fPixelRef = std::move(pr);
     if (fPixelRef) {
-        fPixelRefOrigin.set(SkTPin(dx, 0, fPixelRef->width()), SkTPin(dy, 0, fPixelRef->height()));
+        const SkImageInfo& info = fPixelRef->info();
+        fPixelRefOrigin.set(SkTPin(dx, 0, info.width()), SkTPin(dy, 0, info.height()));
         this->updatePixelsFromRef();
     } else {
         // ignore dx,dy if there is no pixelref
@@ -823,7 +843,7 @@
     if (!pr) {
         return false;
     }
-    bitmap->setInfo(info);
+    bitmap->setInfo(pr->info());
     bitmap->setPixelRef(std::move(pr), 0, 0);
     return true;
 }
@@ -863,8 +883,8 @@
         SkASSERT(fPixelRef->rowBytes() == fRowBytes);
         SkASSERT(fPixelRefOrigin.fX >= 0);
         SkASSERT(fPixelRefOrigin.fY >= 0);
-        SkASSERT(fPixelRef->width() >= (int)this->width() + fPixelRefOrigin.fX);
-        SkASSERT(fPixelRef->height() >= (int)this->height() + fPixelRefOrigin.fY);
+        SkASSERT(fPixelRef->info().width() >= (int)this->width() + fPixelRefOrigin.fX);
+        SkASSERT(fPixelRef->info().height() >= (int)this->height() + fPixelRefOrigin.fY);
         SkASSERT(fPixelRef->rowBytes() >= fInfo.minRowBytes());
     }
 }
diff --git a/src/core/SkMallocPixelRef.cpp b/src/core/SkMallocPixelRef.cpp
index cf4fac7..cdc555b 100644
--- a/src/core/SkMallocPixelRef.cpp
+++ b/src/core/SkMallocPixelRef.cpp
@@ -156,7 +156,7 @@
                                    size_t rowBytes, sk_sp<SkColorTable> ctable,
                                    SkMallocPixelRef::ReleaseProc proc,
                                    void* context)
-    : INHERITED(info.width(), info.height(), storage, rowBytes, sanitize(info, std::move(ctable)))
+    : INHERITED(info, storage, rowBytes, sanitize(info, std::move(ctable)))
     , fReleaseProc(proc)
     , fReleaseProcContext(context)
 {}
@@ -167,3 +167,7 @@
         fReleaseProc(this->pixels(), fReleaseProcContext);
     }
 }
+
+size_t SkMallocPixelRef::getAllocatedSizeInBytes() const {
+    return this->info().getSafeSize(this->rowBytes());
+}
diff --git a/src/core/SkPixelRef.cpp b/src/core/SkPixelRef.cpp
index 487779c..c6d59ea 100644
--- a/src/core/SkPixelRef.cpp
+++ b/src/core/SkPixelRef.cpp
@@ -26,12 +26,6 @@
 
 ///////////////////////////////////////////////////////////////////////////////
 
-#ifdef SK_TRACE_PIXELREF_LIFETIME
-    static int32_t gInstCounter;
-#endif
-
-#ifdef SK_SUPPORT_LEGACY_PIXELREF_API
-
 static SkImageInfo validate_info(const SkImageInfo& info) {
     SkAlphaType newAlphaType = info.alphaType();
     SkAssertResult(SkColorTypeValidateAlphaType(info.colorType(), info.alphaType(), &newAlphaType));
@@ -49,6 +43,10 @@
     }
 }
 
+#ifdef SK_TRACE_PIXELREF_LIFETIME
+    static int32_t gInstCounter;
+#endif
+
 SkPixelRef::SkPixelRef(const SkImageInfo& info, void* pixels, size_t rowBytes,
                        sk_sp<SkColorTable> ctable)
     : fInfo(validate_info(info))
@@ -70,27 +68,6 @@
     fAddedToCache.store(false);
 }
 
-#endif
-
-SkPixelRef::SkPixelRef(int width, int height, void* pixels, size_t rowBytes,
-                       sk_sp<SkColorTable> ctable)
-    : fInfo(SkImageInfo::MakeUnknown(width, height))
-    , fCTable(std::move(ctable))
-    , fPixels(pixels)
-    , fRowBytes(rowBytes)
-#ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK
-    , fStableID(SkNextID::ImageID())
-#endif
-{
-#ifdef SK_TRACE_PIXELREF_LIFETIME
-    SkDebugf(" pixelref %d\n", sk_atomic_inc(&gInstCounter));
-#endif
-
-    this->needsNewGenID();
-    fMutability = kMutable;
-    fAddedToCache.store(false);
-}
-
 SkPixelRef::~SkPixelRef() {
 #ifdef SK_TRACE_PIXELREF_LIFETIME
     SkDebugf("~pixelref %d\n", sk_atomic_dec(&gInstCounter) - 1);
@@ -99,11 +76,11 @@
 }
 
 #ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK
-
-#ifdef SK_SUPPORT_LEGACY_PIXELREF_API
 // This is undefined if there are clients in-flight trying to use us
 void SkPixelRef::android_only_reset(const SkImageInfo& info, size_t rowBytes,
                                     sk_sp<SkColorTable> ctable) {
+    validate_pixels_ctable(info, ctable.get());
+
     *const_cast<SkImageInfo*>(&fInfo) = info;
     fRowBytes = rowBytes;
     fCTable = std::move(ctable);
@@ -114,20 +91,6 @@
 }
 #endif
 
-// This is undefined if there are clients in-flight trying to use us
-void SkPixelRef::android_only_reset(int width, int height, size_t rowBytes,
-                                    sk_sp<SkColorTable> ctable) {
-    *const_cast<SkImageInfo*>(&fInfo) = fInfo.makeWH(width, height);
-    fRowBytes = rowBytes;
-    fCTable = std::move(ctable);
-    // note: we do not change fPixels
-
-    // conservative, since its possible the "new" settings are the same as the old.
-    this->notifyPixelsChanged();
-}
-
-#endif
-
 void SkPixelRef::needsNewGenID() {
     fTaggedGenID.store(0);
     SkASSERT(!this->genIDIsUnique()); // This method isn't threadsafe, so the assert should be fine.
@@ -186,11 +149,9 @@
     this->onNotifyPixelsChanged();
 }
 
-#ifdef SK_SUPPORT_LEGACY_PIXELREF_API
 void SkPixelRef::changeAlphaType(SkAlphaType at) {
     *const_cast<SkImageInfo*>(&fInfo) = fInfo.makeAlphaType(at);
 }
-#endif
 
 void SkPixelRef::setImmutable() {
     fMutability = kImmutable;
@@ -218,3 +179,7 @@
 }
 
 void SkPixelRef::onNotifyPixelsChanged() { }
+
+size_t SkPixelRef::getAllocatedSizeInBytes() const {
+    return 0;
+}
diff --git a/src/core/SkSpecialSurface.cpp b/src/core/SkSpecialSurface.cpp
index 9564a14..33ef97e 100644
--- a/src/core/SkSpecialSurface.cpp
+++ b/src/core/SkSpecialSurface.cpp
@@ -63,11 +63,12 @@
 
 class SkSpecialSurface_Raster : public SkSpecialSurface_Base {
 public:
-    SkSpecialSurface_Raster(const SkImageInfo& info,
-                            sk_sp<SkPixelRef> pr,
+    SkSpecialSurface_Raster(sk_sp<SkPixelRef> pr,
                             const SkIRect& subset,
                             const SkSurfaceProps* props)
         : INHERITED(subset, props) {
+        const SkImageInfo& info = pr->info();
+
         fBitmap.setInfo(info, info.minRowBytes());
         fBitmap.setPixelRef(std::move(pr), 0, 0);
 
@@ -92,7 +93,7 @@
 
 sk_sp<SkSpecialSurface> SkSpecialSurface::MakeFromBitmap(const SkIRect& subset, SkBitmap& bm,
                                                          const SkSurfaceProps* props) {
-    return sk_make_sp<SkSpecialSurface_Raster>(bm.info(), sk_ref_sp(bm.pixelRef()), subset, props);
+    return sk_make_sp<SkSpecialSurface_Raster>(sk_ref_sp(bm.pixelRef()), subset, props);
 }
 
 sk_sp<SkSpecialSurface> SkSpecialSurface::MakeRaster(const SkImageInfo& info,
@@ -102,9 +103,9 @@
         return nullptr;
     }
 
-    const SkIRect subset = SkIRect::MakeWH(info.width(), info.height());
+    const SkIRect subset = SkIRect::MakeWH(pr->info().width(), pr->info().height());
 
-    return sk_make_sp<SkSpecialSurface_Raster>(info, std::move(pr), subset, props);
+    return sk_make_sp<SkSpecialSurface_Raster>(std::move(pr), subset, props);
 }
 
 #if SK_SUPPORT_GPU
diff --git a/src/image/SkImage_Raster.cpp b/src/image/SkImage_Raster.cpp
index 8884755..91de4c5 100644
--- a/src/image/SkImage_Raster.cpp
+++ b/src/image/SkImage_Raster.cpp
@@ -28,7 +28,7 @@
 // fixes https://bug.skia.org/5096
 static bool is_not_subset(const SkBitmap& bm) {
     SkASSERT(bm.pixelRef());
-    SkISize dim = SkISize::Make(bm.pixelRef()->width(), bm.pixelRef()->height());
+    SkISize dim = bm.pixelRef()->info().dimensions();
     SkASSERT(dim != bm.dimensions() || bm.pixelRefOrigin().isZero());
     return dim == bm.dimensions();
 }
diff --git a/src/image/SkSurface_Raster.cpp b/src/image/SkSurface_Raster.cpp
index c4796c4..2de1ed7 100644
--- a/src/image/SkSurface_Raster.cpp
+++ b/src/image/SkSurface_Raster.cpp
@@ -20,7 +20,7 @@
     SkSurface_Raster(const SkImageInfo&, void*, size_t rb,
                      void (*releaseProc)(void* pixels, void* context), void* context,
                      const SkSurfaceProps*);
-    SkSurface_Raster(const SkImageInfo& info, sk_sp<SkPixelRef>, const SkSurfaceProps*);
+    SkSurface_Raster(sk_sp<SkPixelRef>, const SkSurfaceProps*);
 
     SkCanvas* onNewCanvas() override;
     sk_sp<SkSurface> onNewSurface(const SkImageInfo&) override;
@@ -108,10 +108,11 @@
     fWeOwnThePixels = false;    // We are "Direct"
 }
 
-SkSurface_Raster::SkSurface_Raster(const SkImageInfo& info, sk_sp<SkPixelRef> pr,
-                                   const SkSurfaceProps* props)
-    : INHERITED(pr->width(), pr->height(), props)
+SkSurface_Raster::SkSurface_Raster(sk_sp<SkPixelRef> pr, const SkSurfaceProps* props)
+    : INHERITED(pr->info().width(), pr->info().height(), props)
 {
+    const SkImageInfo& info = pr->info();
+
     fBitmap.setInfo(info, pr->rowBytes());
     fRowBytes = pr->rowBytes(); // we track this, so that subsequent re-allocs will match
     fBitmap.setPixelRef(std::move(pr), 0, 0);
@@ -214,5 +215,5 @@
     if (rowBytes) {
         SkASSERT(pr->rowBytes() == rowBytes);
     }
-    return sk_make_sp<SkSurface_Raster>(info, std::move(pr), props);
+    return sk_make_sp<SkSurface_Raster>(std::move(pr), props);
 }
diff --git a/src/pdf/SkPDFDevice.cpp b/src/pdf/SkPDFDevice.cpp
index 768277a..358ba16 100644
--- a/src/pdf/SkPDFDevice.cpp
+++ b/src/pdf/SkPDFDevice.cpp
@@ -106,9 +106,7 @@
     SkIRect subset = bitmap.getSubset();
     SkASSERT(bitmap.pixelRef());
     SkBitmap tmp;
-    SkImageInfo pixelRefInfo =
-            bitmap.info().makeWH(bitmap.pixelRef()->width(), bitmap.pixelRef()->height());
-    tmp.setInfo(pixelRefInfo, bitmap.rowBytes());
+    tmp.setInfo(bitmap.pixelRef()->info(), bitmap.rowBytes());
     tmp.setPixelRef(sk_ref_sp(bitmap.pixelRef()), 0, 0);
     auto img = SkImage::MakeFromBitmap(tmp);
     if (img) {