Creating functions for uploading a mipmapped texture.

include/gpu/GrTexture.h

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrTexture_DEFINED
 #define GrTexture_DEFINED
@@ skipping 28 matching lines @@
         this->validateDesc();
     }
 #endif
 
     /** Access methods that are only to be used within Skia code. */
     inline GrTexturePriv texturePriv();
     inline const GrTexturePriv texturePriv() const;
 
 protected:
     GrTexture(GrGpu*, LifeCycle, const GrSurfaceDesc&);
+    GrTexture(GrGpu*, LifeCycle, const GrSurfaceDesc&, bool wasMipMapDataProvided);
 
     void validateDesc() const;
 
 private:
     size_t onGpuMemorySize() const override;
     void dirtyMipMaps(bool mipMapsDirty);
 
     enum MipMapsStatus {
         kNotAllocated_MipMapsStatus,
         kAllocated_MipMapsStatus,
         kValid_MipMapsStatus
     };
 
     MipMapsStatus   fMipMapsStatus;
-    // These two shift a fixed-point value into normalized coordinates  
+    bool            fIsMaxMipMapLevelSpecified;
+    int             fMaxMipMapLevel;

[bsalomon, 2016/01/14 13:57:23]

Could this be combined with the Desc's boolean? Maybe store a count on Desc and
know that 1 means "not mipmapped"?

[Chris Blume, 2016/01/20 06:15:08]

Done.

+    // These two shift a fixed-point value into normalized coordinates
     // for this texture if the texture is power of two sized.
     int             fShiftFixedX;
     int             fShiftFixedY;
 
     friend class GrTexturePriv;
 
     typedef GrSurface INHERITED;
 };
 
 #endif