Creating functions for uploading a mipmapped texture.

include/gpu/GrTextureProvider.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrTextureProvider_DEFINED
 #define GrTextureProvider_DEFINED
 
 #include "GrTexture.h"
+#include "SkMipMapLevel.h"
+#include "SkTArray.h"
 
 class SK_API GrTextureProvider {
 public:
     ///////////////////////////////////////////////////////////////////////////
     // Textures
 
     /**
      * Creates a new texture in the resource cache and returns it. The caller owns a
      * ref on the returned texture which must be balanced by a call to unref.
      *
      * @param desc      Description of the texture properties.
      * @param budgeted  Does the texture count against the resource cache budget?
      * @param srcData   Pointer to the pixel values (optional).
      * @param rowBytes  The number of bytes between rows of the texture. Zero
      *                  implies tightly packed rows. For compressed pixel configs, this
      *                  field is ignored.
      */
     GrTexture* createTexture(const GrSurfaceDesc& desc, bool budgeted, const void* srcData,
                              size_t rowBytes);
 
     /** Shortcut for creating a texture with no initial data to upload. */
     GrTexture* createTexture(const GrSurfaceDesc& desc, bool budgeted) {
         return this->createTexture(desc, budgeted, NULL, 0);
     }
 
+    /**
+     * Creates a new texture in the resource cache and returns it. The caller owns a
+     * ref on the returned texture which must be balanced by a call to unref.
+     *
+     * @param desc     Description of the texture properties.
+     * @param budgeted Does the texture count against the resource cache budget?
+     * @param texels   An array of mipmap levels
+     */
+    GrTexture* createTexture(const GrSurfaceDesc& desc, bool budgeted,
+                             SkTArray<SkMipMapLevel>& texels);
+
     /** Assigns a unique key to the texture. The texture will be findable via this key using
         findTextureByUniqueKey(). If an existing texture has this key, it's key will be removed. */
     void assignUniqueKeyToTexture(const GrUniqueKey& key, GrTexture* texture) {
         this->assignUniqueKeyToResource(key, texture);
     }
 
     /** Finds a texture by unique key. If the texture is found it is ref'ed and returned. */
     GrTexture* findAndRefTextureByUniqueKey(const GrUniqueKey& key) {
         GrGpuResource* resource = this->findAndRefResourceByUniqueKey(key);
         if (resource) {
@@ skipping 115 matching lines @@
         SkASSERT(SkToBool(fGpu) == SkToBool(fCache));
         return !SkToBool(fCache);
     }
 
 private:
     GrResourceCache* fCache;
     GrGpu* fGpu;
 };
 
 #endif