SetNeedsRedraw directly when updating a visible tile.

cc/trees/layer_tree_host_unittest.cc

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/trees/layer_tree_host.h"
 
 #include <algorithm>
 
 #include "base/auto_reset.h"
 #include "base/synchronization/lock.h"
 #include "cc/animation/timing_function.h"
 #include "cc/base/swap_promise.h"
 #include "cc/debug/frame_rate_counter.h"
 #include "cc/layers/content_layer.h"
 #include "cc/layers/content_layer_client.h"
 #include "cc/layers/io_surface_layer.h"
 #include "cc/layers/layer_impl.h"
 #include "cc/layers/painted_scrollbar_layer.h"
 #include "cc/layers/picture_layer.h"
 #include "cc/layers/solid_color_layer.h"
 #include "cc/layers/video_layer.h"
 #include "cc/output/begin_frame_args.h"
 #include "cc/output/compositor_frame_ack.h"
 #include "cc/output/copy_output_request.h"
 #include "cc/output/copy_output_result.h"
 #include "cc/output/output_surface.h"
 #include "cc/quads/draw_quad.h"
 #include "cc/quads/io_surface_draw_quad.h"
+#include "cc/quads/tile_draw_quad.h"
 #include "cc/resources/prioritized_resource.h"
 #include "cc/resources/prioritized_resource_manager.h"
 #include "cc/resources/resource_update_queue.h"
 #include "cc/test/fake_content_layer.h"
 #include "cc/test/fake_content_layer_client.h"
 #include "cc/test/fake_content_layer_impl.h"
 #include "cc/test/fake_layer_tree_host_client.h"
 #include "cc/test/fake_output_surface.h"
 #include "cc/test/fake_painted_scrollbar_layer.h"
 #include "cc/test/fake_picture_layer.h"
@@ skipping 4146 matching lines @@
   void InitializeSettings(LayerTreeSettings* settings) override {
     settings->impl_side_painting = true;
     settings->use_zero_copy = false;
     settings->use_one_copy = false;
   }
 
   scoped_ptr<FakeOutputSurface> CreateFakeOutputSurface(
       bool fallback) override {
     scoped_refptr<TestContextProvider> context_provider =
         TestContextProvider::Create();
-    context_provider->SetMaxTransferBufferUsageBytes(1024 * 1024);
+    context_provider->SetMaxTransferBufferUsageBytes(512 * 512);
     if (delegating_renderer())
       return FakeOutputSurface::CreateDelegating3d(context_provider);
     else
       return FakeOutputSurface::Create3d(context_provider);
   }
 
   void SetupTree() override {
     client_.set_fill_with_nonsolid_color(true);
     scoped_refptr<FakePictureLayer> root_layer =
         FakePictureLayer::Create(&client_);
-    root_layer->SetBounds(gfx::Size(6000, 6000));
+    root_layer->SetBounds(gfx::Size(1024, 1024));
     root_layer->SetIsDrawable(true);
 
     layer_tree_host()->SetRootLayer(root_layer);
     LayerTreeHostTest::SetupTree();
   }
 
   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
 
   void DidActivateTreeOnThread(LayerTreeHostImpl* impl) override {
     TestWebGraphicsContext3D* context = TestContext();
 
     // Expect that the transfer buffer memory used is equal to the
     // MaxTransferBufferUsageBytes value set in CreateOutputSurface.
-    EXPECT_EQ(1024 * 1024u, context->max_used_transfer_buffer_usage_bytes());
+    EXPECT_EQ(512 * 512u, context->max_used_transfer_buffer_usage_bytes());
     EndTest();
   }
 
   void AfterTest() override {}
 
  private:
   FakeContentLayerClient client_;
 };
 
 // Impl-side painting is a multi-threaded compositor feature.
@@ skipping 967 matching lines @@
 
   void AfterTest() override {
     EXPECT_TRUE(deltas_sent_to_client_);
   }
 
   ScrollAndScaleSet info_;
   bool deltas_sent_to_client_;
 };
 
 MULTI_THREAD_TEST_F(LayerTreeHostAcceptsDeltasFromImplWithoutRootLayer);
+
+class LayerTreeHostTestCrispUpAfterPinchEnds : public LayerTreeHostTest {
+ protected:
+  void InitializeSettings(LayerTreeSettings* settings) override {
+    settings->impl_side_painting = true;
+  }
+
+  void SetupTree() override {
+    frame_ = 1;
+    posted_ = false;
+    client_.set_fill_with_nonsolid_color(true);
+
+    scoped_refptr<Layer> root = Layer::Create();
+    root->SetBounds(gfx::Size(500, 500));
+
+    scoped_refptr<Layer> pinch = Layer::Create();
+    pinch->SetBounds(gfx::Size(500, 500));
+    pinch->SetScrollClipLayerId(root->id());
+    pinch->SetIsContainerForFixedPositionLayers(true);
+    root->AddChild(pinch);
+
+    scoped_refptr<FakePictureLayer> layer = FakePictureLayer::Create(&client_);
+    layer->SetBounds(gfx::Size(500, 500));
+    layer->SetContentsOpaque(true);
+    pinch->AddChild(layer);
+
+    layer_tree_host()->RegisterViewportLayers(root, pinch, pinch);
+    layer_tree_host()->SetPageScaleFactorAndLimits(1.f, 1.f, 4.f);
+    layer_tree_host()->SetRootLayer(root);
+    LayerTreeHostTest::SetupTree();
+  }
+
+  // Returns the delta scale of all quads in the frame's root pass from their
+  // ideal, or 0 if they are not all the same.
+  float FrameQuadScaleDeltaFromIdeal(LayerTreeHostImpl::FrameData* frame_data) {
+    if (frame_data->has_no_damage)
+      return 0.f;
+    float frame_scale = 0.f;
+    RenderPass* root_pass = frame_data->render_passes.back();
+    for (const auto& draw_quad : root_pass->quad_list) {
+      const TileDrawQuad* quad = TileDrawQuad::MaterialCast(&draw_quad);
+      float quad_scale =
+          quad->tex_coord_rect.width() / static_cast<float>(quad->rect.width());
+      float transform_scale =
+          SkMScalarToFloat(quad->quadTransform().matrix().get(0, 0));
+      float scale = quad_scale / transform_scale;
+      if (frame_scale != 0.f && frame_scale != scale) {
+        return 0.f;
+      }
+      frame_scale = scale;
+    }
+    return frame_scale;
+  }
+
+  void BeginTest() override { PostSetNeedsCommitToMainThread(); }
+
+  DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
+                                   LayerTreeHostImpl::FrameData* frame_data,
+                                   DrawResult draw_result) override {
+    float quad_scale_delta = FrameQuadScaleDeltaFromIdeal(frame_data);
+    switch (frame_) {
+      case 1:
+        // Drew at scale 1 before any pinching.
+        EXPECT_EQ(1.f, host_impl->active_tree()->total_page_scale_factor());
+        EXPECT_EQ(1.f, quad_scale_delta);
+        PostNextAfterDraw(host_impl);
+        break;
+      case 2:
+        if (quad_scale_delta != 1.f)
+          break;
+        // Drew at scale 2.2 after pinching in.
+        EXPECT_EQ(2.2f, host_impl->active_tree()->total_page_scale_factor());
+        EXPECT_EQ(1.f, quad_scale_delta);
+        PostNextAfterDraw(host_impl);
+        break;
+      case 3:
+        if (quad_scale_delta != 1.1f)
+          break;
+        // Drew at scale 1 with the 1.1 tiling while pinching out.
+        EXPECT_EQ(1.f, host_impl->active_tree()->total_page_scale_factor());
+        EXPECT_EQ(1.1f, quad_scale_delta);
+        PostNextAfterDraw(host_impl);
+        break;
+      case 4:
+        // Drew at scale 1 with the 1.1 tiling after pinching out completed
+        // while waiting for texture uploads to complete.
+        EXPECT_EQ(1.f, host_impl->active_tree()->total_page_scale_factor());
+        // This frame may not have any damage, since it's actually the same as
+        // the last frame, and should contain incomplete tiles. We just want to
+        // make sure we drew here at least once after the pinch ended to be sure
+        // that drawing after pinch doesn't leave us at the wrong scale forever.
+        if (!frame_data->has_no_damage)
+          EXPECT_EQ(1.1f, quad_scale_delta);
+        PostNextAfterDraw(host_impl);
+        break;
+      case 5:
+        if (quad_scale_delta != 1.f)
+          break;
+        // Drew at scale 1 after texture uploads are done.
+        EXPECT_EQ(1.f, host_impl->active_tree()->total_page_scale_factor());
+        EXPECT_EQ(1.f, quad_scale_delta);
+        EndTest();
+        break;
+    }
+    return draw_result;
+  }
+
+  void PostNextAfterDraw(LayerTreeHostImpl* host_impl) {
+    if (posted_)
+      return;
+    posted_ = true;
+    ImplThreadTaskRunner()->PostDelayedTask(
+        FROM_HERE,
+        base::Bind(&LayerTreeHostTestCrispUpAfterPinchEnds::Next,
+                   base::Unretained(this),
+                   host_impl),
+        // Use a delay to allow raster/upload to happen in between frames. This
+        // should cause flakiness if we fail to block raster/upload when
+        // desired.
+        base::TimeDelta::FromMilliseconds(16 * 6));
+  }
+
+  void Next(LayerTreeHostImpl* host_impl) {
+    ++frame_;
+    posted_ = false;
+    switch (frame_) {
+      case 2:
+        // Pinch zoom in.
+        host_impl->PinchGestureBegin();
+        host_impl->PinchGestureUpdate(2.2f, gfx::Point(100, 100));
+        host_impl->PinchGestureEnd();
+        break;
+      case 3:
+        // Pinch zoom back to 1.f but don't end it.
+        host_impl->PinchGestureBegin();
+        host_impl->PinchGestureUpdate(1.f / 2.2f, gfx::Point(100, 100));
+        break;
+      case 4:
+        // End the pinch, but delay texture uploads.
+        TestContext()->set_query_result_available_ext(0);
+        host_impl->PinchGestureEnd();
+        break;
+      case 5:
+        // Let texture uploads complete.
+        TestContext()->set_query_result_available_ext(1);
+        break;
+    }
+  }
+
+  void NotifyTileStateChangedOnThread(LayerTreeHostImpl* host_impl,
+                                      const Tile* tile) override {
+    // On frame_ == 4, we are preventing texture uploads from completing,
+    // so this verifies they are not completing before frame_ == 5.
+    // Flaky failures here indicate we're failing to prevent uploads from
+    // completing.
+    EXPECT_NE(4, frame_);
+  }
+
+  void AfterTest() override {}
+
+  FakeContentLayerClient client_;
+  int frame_;
+  bool posted_;
+};
+
+MULTI_THREAD_TEST_F(LayerTreeHostTestCrispUpAfterPinchEnds);
+
+class LayerTreeHostTestContinuousDrawWhenCreatingVisibleTiles
+    : public LayerTreeHostTest {
+ protected:
+  void InitializeSettings(LayerTreeSettings* settings) override {
+    settings->impl_side_painting = true;
+  }
+
+  void SetupTree() override {
+    step_ = 1;
+    continuous_draws_ = 0;
+    client_.set_fill_with_nonsolid_color(true);
+
+    scoped_refptr<Layer> root = Layer::Create();
+    root->SetBounds(gfx::Size(500, 500));
+
+    scoped_refptr<Layer> pinch = Layer::Create();
+    pinch->SetBounds(gfx::Size(500, 500));
+    pinch->SetScrollClipLayerId(root->id());
+    pinch->SetIsContainerForFixedPositionLayers(true);
+    root->AddChild(pinch);
+
+    scoped_refptr<FakePictureLayer> layer = FakePictureLayer::Create(&client_);
+    layer->SetBounds(gfx::Size(500, 500));
+    layer->SetContentsOpaque(true);
+    pinch->AddChild(layer);
+
+    layer_tree_host()->RegisterViewportLayers(root, pinch, pinch);
+    layer_tree_host()->SetPageScaleFactorAndLimits(1.f, 1.f, 4.f);
+    layer_tree_host()->SetRootLayer(root);
+    LayerTreeHostTest::SetupTree();
+  }
+
+  // Returns the delta scale of all quads in the frame's root pass from their
+  // ideal, or 0 if they are not all the same.
+  float FrameQuadScaleDeltaFromIdeal(LayerTreeHostImpl::FrameData* frame_data) {
+    if (frame_data->has_no_damage)
+      return 0.f;
+    float frame_scale = 0.f;
+    RenderPass* root_pass = frame_data->render_passes.back();
+    for (const auto& draw_quad : root_pass->quad_list) {
+      const TileDrawQuad* quad = TileDrawQuad::MaterialCast(&draw_quad);
+      float quad_scale =
+          quad->tex_coord_rect.width() / static_cast<float>(quad->rect.width());
+      float transform_scale =
+          SkMScalarToFloat(quad->quadTransform().matrix().get(0, 0));
+      float scale = quad_scale / transform_scale;
+      if (frame_scale != 0.f && frame_scale != scale) {
+        return 0.f;
+      }
+      frame_scale = scale;
+    }
+    return frame_scale;
+  }
+
+  void BeginTest() override { PostSetNeedsCommitToMainThread(); }
+
+  DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
+                                   LayerTreeHostImpl::FrameData* frame_data,
+                                   DrawResult draw_result) override {
+    float quad_scale_delta = FrameQuadScaleDeltaFromIdeal(frame_data);
+    switch (step_) {
+      case 1:
+        // Drew at scale 1 before any pinching.
+        EXPECT_EQ(1.f, host_impl->active_tree()->total_page_scale_factor());
+        EXPECT_EQ(1.f, quad_scale_delta);
+        break;
+      case 2:
+        // Drew at scale 1 still though the ideal is 1.5.
+        EXPECT_EQ(1.5f, host_impl->active_tree()->total_page_scale_factor());
+        EXPECT_EQ(1.f / 1.5f, quad_scale_delta);
+        break;
+      case 3:
+        // Continuous draws are attempted but fail.
+        EXPECT_TRUE(frame_data->has_no_damage);
+        break;
+      case 4:
+        if (quad_scale_delta != 1.f)
+          break;
+        // Drew at scale 1.5 when all the tiles completed.
+        EXPECT_EQ(1.5f, host_impl->active_tree()->total_page_scale_factor());
+        EXPECT_EQ(1.f, quad_scale_delta);
+
+        // We should not continue to draw any more. End the test after a timeout
+        // to watch for any extraneous draws.
+        EndTestAfterDelayMs(16 * 4);
+        ++step_;
+        break;
+      case 5:
+        // No draws should happen once we have a complete frame.
+        EXPECT_TRUE(false);
+        break;
+    }
+    return draw_result;
+  }
+
+  void DrawLayersOnThread(LayerTreeHostImpl* host_impl) override {
+    switch (step_) {
+      case 1:
+        // Prevent texture uploads from completing.
+        TestContext()->set_query_result_available_ext(0);
+        // Pinch zoom in to cause new tiles to be required.
+        host_impl->PinchGestureBegin();
+        host_impl->PinchGestureUpdate(1.5f, gfx::Point(100, 100));
+        host_impl->PinchGestureEnd();
+        ++step_;
+        break;
+      case 2:
+        ++step_;
+        break;
+      case 3:
+        // We should continue to try draw while there are incomplete visible
+        // tiles.
+        if (++continuous_draws_ > 5) {
+          // Allow the tiles to complete.
+          TestContext()->set_query_result_available_ext(1);
+          ++step_;
+        }
+        break;
+    }
+  }
+
+  void NotifyTileStateChangedOnThread(LayerTreeHostImpl* host_impl,
+                                      const Tile* tile) override {
+    // On step_ == 2, we are preventing texture uploads from completing,
+    // so this verifies they are not completing before step_ == 3.
+    // Flaky failures here indicate we're failing to prevent uploads from
+    // completing.
+    EXPECT_NE(2, step_);
+  }
+
+  void AfterTest() override { EXPECT_GT(continuous_draws_, 5); }
+
+  FakeContentLayerClient client_;
+  int step_;
+  int continuous_draws_;
+};
+
+MULTI_THREAD_TEST_F(LayerTreeHostTestContinuousDrawWhenCreatingVisibleTiles);
+
 }  // namespace cc