Add addtional resolve calls to vulkan backend

src/gpu/vk/GrVkGpuCommandBuffer.cpp

 /*
 * Copyright 2016 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
 #include "GrVkGpuCommandBuffer.h"
 
 #include "GrMesh.h"
@@ skipping 328 matching lines @@
 static void append_sampled_images(const GrProcessor& processor,
                                   GrVkGpu* gpu,
                                   SkTArray<GrVkImage*>* sampledImages) {
     if (int numTextures = processor.numTextures()) {
         GrVkImage** images = sampledImages->push_back_n(numTextures);
         int i = 0;
         do {
             const GrTextureAccess& texAccess = processor.textureAccess(i);
             GrVkTexture* vkTexture = static_cast<GrVkTexture*>(processor.texture(i));
             SkASSERT(vkTexture);
+
+            // We may need to resolve the texture first if it is also a render target
+            GrVkRenderTarget* texRT = static_cast<GrVkRenderTarget*>(vkTexture->asRenderTarget());
+            if (texRT) {
+                gpu->onResolveRenderTarget(texRT);
+            }
+
             const GrTextureParams& params = texAccess.getParams();
             // Check if we need to regenerate any mip maps
             if (GrTextureParams::kMipMap_FilterMode == params.filterMode()) {
                 if (vkTexture->texturePriv().mipMapsAreDirty()) {
                     gpu->generateMipmap(vkTexture);
                     vkTexture->texturePriv().dirtyMipMaps(false);
                 }
             }
 
             images[i] = vkTexture;
@@ skipping 71 matching lines @@
             fGpu->stats()->incNumDraws();
         } while ((nonIdxMesh = iter.next()));
     }
 
     // Technically we don't have to call this here (since there is a safety check in
     // pipelineState:setData but this will allow for quicker freeing of resources if the
     // pipelineState sits in a cache for a while.
     pipelineState->freeTempResources(fGpu);
 }