Add onDrawBitmapLattice(), avoid unnecessary bitmap->image copy

src/core/SkCanvas.cpp

 /*
  * Copyright 2008 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmapDevice.h"
 #include "SkCanvas.h"
 #include "SkCanvasPriv.h"
@@ skipping 2039 matching lines @@
     if (dst.isEmpty()) {
         return;
     }
     if (SkLatticeIter::Valid(image->width(), image->height(), center)) {
         this->onDrawImageNine(image, center, dst, paint);
     } else {
         this->drawImageRect(image, dst, paint);
     }
 }
 
+void SkCanvas::drawImageLattice(const SkImage* image, const Lattice& lattice, const SkRect& dst,
+                                const SkPaint* paint) {
+    RETURN_ON_NULL(image);
+    if (dst.isEmpty()) {
+        return;
+    }
+    if (SkLatticeIter::Valid(image->width(), image->height(), lattice)) {
+        this->onDrawImageLattice(image, lattice, dst, paint);
+    } else {
+        this->drawImageRect(image, dst, paint);
+    }
+}
+
 void SkCanvas::drawBitmap(const SkBitmap& bitmap, SkScalar dx, SkScalar dy, const SkPaint* paint) {
     if (bitmap.drawsNothing()) {
         return;
     }
     this->onDrawBitmap(bitmap, dx, dy, paint);
 }
 
 void SkCanvas::drawBitmapRect(const SkBitmap& bitmap, const SkRect& src, const SkRect& dst,
                               const SkPaint* paint, SrcRectConstraint constraint) {
     if (bitmap.drawsNothing() || dst.isEmpty() || src.isEmpty()) {
@@ skipping 16 matching lines @@
 void SkCanvas::drawBitmapNine(const SkBitmap& bitmap, const SkIRect& center, const SkRect& dst,
                               const SkPaint* paint) {
     if (bitmap.drawsNothing() || dst.isEmpty()) {
         return;
     }
     if (SkLatticeIter::Valid(bitmap.width(), bitmap.height(), center)) {
         this->onDrawBitmapNine(bitmap, center, dst, paint);
     } else {
         this->drawBitmapRect(bitmap, dst, paint);
     }
-
 }
 
 void SkCanvas::drawBitmapLattice(const SkBitmap& bitmap, const Lattice& lattice, const SkRect& dst,
                                  const SkPaint* paint) {
-    sk_sp<SkImage> image = SkImage::MakeFromBitmap(bitmap);
-    this->drawImageLattice(image.get(), lattice, dst, paint);
-}
-
-void SkCanvas::drawImageLattice(const SkImage* image, const Lattice& lattice, const SkRect& dst,
-                                const SkPaint* paint) {
-    RETURN_ON_NULL(image);
-    if (dst.isEmpty()) {
+    if (bitmap.drawsNothing() || dst.isEmpty()) {
         return;
     }
-    if (SkLatticeIter::Valid(image->width(), image->height(), lattice)) {
-        this->onDrawImageLattice(image, lattice, dst, paint);
+    if (SkLatticeIter::Valid(bitmap.width(), bitmap.height(), lattice)) {
+        this->onDrawBitmapLattice(bitmap, lattice, dst, paint);
     } else {
-        this->drawImageRect(image, dst, paint);
+        this->drawBitmapRect(bitmap, dst, paint);
     }
 }
 
 void SkCanvas::drawAtlas(const SkImage* atlas, const SkRSXform xform[], const SkRect tex[],
                          const SkColor colors[], int count, SkXfermode::Mode mode,
                          const SkRect* cull, const SkPaint* paint) {
     RETURN_ON_NULL(atlas);
     if (count <= 0) {
         return;
     }
@@ skipping 287 matching lines @@
                                       SkScalarRoundToInt(pt.fX),
                                       SkScalarRoundToInt(pt.fY), pnt);
         } else {
             iter.fDevice->drawImage(iter, image, x, y, pnt);
         }
     }
 
     LOOPER_END
 }
 
-void SkCanvas::onDrawImageLattice(const SkImage* image, const Lattice& lattice, const SkRect& dst,
-                                  const SkPaint* paint) {
-    if (nullptr == paint || paint->canComputeFastBounds()) {
-        SkRect storage;
-        if (this->quickReject(paint ? paint->computeFastBounds(dst, &storage) : dst)) {
-            return;
-        }
-    }
-
-    SkLazyPaint lazy;
-    if (nullptr == paint) {
-        paint = lazy.init();
-    }
-
-    LOOPER_BEGIN(*paint, SkDrawFilter::kBitmap_Type, &dst)
-
-    while (iter.next()) {
-        iter.fDevice->drawImageLattice(iter, image, lattice, dst, looper.paint());
-    }
-
-    LOOPER_END
-}
-
 void SkCanvas::onDrawImageRect(const SkImage* image, const SkRect* src, const SkRect& dst,
                                const SkPaint* paint, SrcRectConstraint constraint) {
     TRACE_EVENT0("disabled-by-default-skia", "SkCanvas::drawImageRect()");
     if (nullptr == paint || paint->canComputeFastBounds()) {
         SkRect storage = dst;
         if (paint) {
             paint->computeFastBounds(dst, &storage);
         }
         if (this->quickReject(storage)) {
             return;
@@ skipping 150 matching lines @@
 
     LOOPER_BEGIN(*paint, SkDrawFilter::kBitmap_Type, &dst)
 
     while (iter.next()) {
         iter.fDevice->drawBitmapNine(iter, bitmap, center, dst, looper.paint());
     }
 
     LOOPER_END
 }
 
+void SkCanvas::onDrawImageLattice(const SkImage* image, const Lattice& lattice, const SkRect& dst,
+                                  const SkPaint* paint) {
+    if (nullptr == paint || paint->canComputeFastBounds()) {
+        SkRect storage;
+        if (this->quickReject(paint ? paint->computeFastBounds(dst, &storage) : dst)) {
+            return;
+        }
+    }
+
+    SkLazyPaint lazy;
+    if (nullptr == paint) {
+        paint = lazy.init();
+    }
+
+    LOOPER_BEGIN(*paint, SkDrawFilter::kBitmap_Type, &dst)
+
+    while (iter.next()) {
+        iter.fDevice->drawImageLattice(iter, image, lattice, dst, looper.paint());
+    }
+
+    LOOPER_END
+}
+
+void SkCanvas::onDrawBitmapLattice(const SkBitmap& bitmap, const Lattice& lattice,
+                                   const SkRect& dst, const SkPaint* paint) {
+    if (nullptr == paint || paint->canComputeFastBounds()) {
+        SkRect storage;
+        if (this->quickReject(paint ? paint->computeFastBounds(dst, &storage) : dst)) {
+            return;
+        }
+    }
+
+    SkLazyPaint lazy;
+    if (nullptr == paint) {
+        paint = lazy.init();
+    }
+
+    LOOPER_BEGIN(*paint, SkDrawFilter::kBitmap_Type, &dst)
+
+    while (iter.next()) {
+        iter.fDevice->drawBitmapLattice(iter, bitmap, lattice, dst, looper.paint());
+    }
+
+    LOOPER_END
+}
+
 class SkDeviceFilteredPaint {
 public:
     SkDeviceFilteredPaint(SkBaseDevice* device, const SkPaint& paint) {
         uint32_t filteredFlags = device->filterTextFlags(paint);
         if (filteredFlags != paint.getFlags()) {
             SkPaint* newPaint = fLazy.set(paint);
             newPaint->setFlags(filteredFlags);
             fPaint = newPaint;
         } else {
             fPaint = &paint;
@@ skipping 734 matching lines @@
 
 SkAutoCanvasMatrixPaint::~SkAutoCanvasMatrixPaint() {
     fCanvas->restoreToCount(fSaveCount);
 }
 
 #ifdef SK_SUPPORT_LEGACY_NEW_SURFACE_API
 SkSurface* SkCanvas::newSurface(const SkImageInfo& info, const SkSurfaceProps* props) {
     return this->makeSurface(info, props).release();
 }
 #endif