Store mipmap levels in deferred texture image

When creating the deferred texture image, detect if using medium / high
quality. If so, generate and store mipmaps in the deferred texture
image.

When creating a texture from that be sure to read it back out.

BUG=578304
R=bsalomon@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2034933003

Review-Url: https://codereview.chromium.org/2034933003

1 files changed, 4 insertions, 2 deletions

diff --git a/include/core/SkImage.h b/include/core/SkImage.h
index c9c5668460..b373e30fa7 100644
--- a/include/core/SkImage.h
+++ b/include/core/SkImage.h
@@ -384,7 +384,9 @@ public:
     size_t getDeferredTextureImageData(const GrContextThreadSafeProxy&,
                                        const DeferredTextureImageUsageParams[],
                                        int paramCnt,
-                                       void* buffer) const;
+                                       void* buffer,
+                                       SkSourceGammaTreatment treatment =
+                                       SkSourceGammaTreatment::kIgnore) const;
 
     /**
      * Returns a texture-backed image from data produced in SkImage::getDeferredTextureImageData.
@@ -459,7 +461,7 @@ protected:
 private:
     static sk_sp<SkImage> MakeTextureFromMipMap(GrContext*, const SkImageInfo&,
                                                 const GrMipLevel* texels, int mipLevelCount,
-                                                SkBudgeted);
+                                                SkBudgeted, SkSourceGammaTreatment);
 
     const int       fWidth;
     const int       fHeight;