Plumbing mipmaps to the point of creation.

When creating a DeferredTextureImage we may create mipmaps.
Those mipmaps need to then be passed along for when the texture is
actually created.

R=bsalomon@google.com
BUG=578304
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2031273002

Review-Url: https://codereview.chromium.org/2031273002

1 files changed, 5 insertions, 1 deletions

diff --git a/include/core/SkImage.h b/include/core/SkImage.h
index c9579b610c..50a9f57612 100644
--- a/include/core/SkImage.h
+++ b/include/core/SkImage.h
@@ -396,7 +396,7 @@ public:
      *  to empty.
      */
     bool asLegacyBitmap(SkBitmap*, LegacyBitmapMode) const;
-    
+
     /**
      *  Returns true if the image is backed by an image-generator or other src that creates
      *  (and caches) its pixels / texture on-demand.
@@ -443,6 +443,10 @@ protected:
     SkImage(int width, int height, uint32_t uniqueID);
 
 private:
+    static sk_sp<SkImage> MakeTextureFromMipMap(GrContext*, const SkImageInfo&,
+                                                const GrMipLevel* texels, int mipLevelCount,
+                                                SkBudgeted);
+
     const int       fWidth;
     const int       fHeight;
     const uint32_t  fUniqueID;