cc: Change the restrictions on overlays for video

cc/output/overlay_unittest.cc

 // Copyright 2014 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/base/scoped_ptr_vector.h"
 #include "cc/output/gl_renderer.h"
 #include "cc/output/output_surface.h"
 #include "cc/output/output_surface_client.h"
 #include "cc/output/overlay_candidate_validator.h"
 #include "cc/output/overlay_processor.h"
 #include "cc/output/overlay_strategy_single_on_top.h"
 #include "cc/quads/checkerboard_draw_quad.h"
 #include "cc/quads/render_pass.h"
+#include "cc/quads/stream_video_draw_quad.h"
 #include "cc/quads/texture_draw_quad.h"
 #include "cc/resources/resource_provider.h"
 #include "cc/resources/texture_mailbox.h"
 #include "cc/test/fake_output_surface_client.h"
 #include "cc/test/geometry_test_utils.h"
 #include "cc/test/test_context_provider.h"
 #include "cc/test/test_shared_bitmap_manager.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using testing::_;
 using testing::Mock;
 
 namespace cc {
 namespace {
 
 const gfx::Rect kOverlayRect(0, 0, 128, 128);
 const gfx::Rect kOverlayTopLeftRect(0, 0, 64, 64);
 const gfx::Rect kOverlayBottomRightRect(64, 64, 64, 64);
 const gfx::PointF kUVTopLeft(0.1f, 0.2f);
 const gfx::PointF kUVBottomRight(1.0f, 1.0f);
+const gfx::Transform kNormalTransform =
+    gfx::Transform(0.9f, 0, 0, 0.8f, 0.1f, 0.2f);  // x,y -> x,y.
+const gfx::Transform kXMirrorTransform =
+    gfx::Transform(-0.9f, 0, 0, 0.8f, 1.0f, 0.2f);  // x,y -> 1-x,y.
+const gfx::Transform kYMirrorTransform =
+    gfx::Transform(0.9f, 0, 0, -0.8f, 0.1f, 1.0f);  // x,y -> x,1-y.
+const gfx::Transform kBothMirrorTransform =
+    gfx::Transform(-0.9f, 0, 0, -0.8f, 1.0f, 1.0f);  // x,y -> 1-x,1-y.
+const gfx::Transform kSwapTransform =
+    gfx::Transform(0, 1, 1, 0, 0, 0);  // x,y -> y,x.
 
 void MailboxReleased(unsigned sync_point,
                      bool lost_resource,
                      BlockingTaskRunner* main_thread_task_runner) {
 }
 
 class SingleOverlayValidator : public OverlayCandidateValidator {
  public:
   void CheckOverlaySupport(OverlayCandidateList* surfaces) override;
 };
@@ skipping 121 matching lines @@
                        kUVTopLeft,
                        kUVBottomRight,
                        SK_ColorTRANSPARENT,
                        vertex_opacity,
                        flipped,
                        nearest_neighbor);
 
   return overlay_quad;
 }
 
+StreamVideoDrawQuad* CreateCandidateVideoQuadAt(
+    ResourceProvider* resource_provider,
+    const SharedQuadState* shared_quad_state,
+    RenderPass* render_pass,
+    const gfx::Rect& rect,
+    const gfx::Transform& transform) {
+  ResourceProvider::ResourceId resource_id = CreateResource(resource_provider);
+
+  StreamVideoDrawQuad* overlay_quad =
+      render_pass->CreateAndAppendDrawQuad<StreamVideoDrawQuad>();
+  overlay_quad->SetNew(shared_quad_state, rect, rect, rect, resource_id,
+                       transform);
+
+  return overlay_quad;
+}
+
 TextureDrawQuad* CreateFullscreenCandidateQuad(
     ResourceProvider* resource_provider,
     const SharedQuadState* shared_quad_state,
     RenderPass* render_pass) {
   return CreateCandidateQuadAt(
       resource_provider, shared_quad_state, render_pass, kOverlayRect);
 }
 
+StreamVideoDrawQuad* CreateFullscreenCandidateVideoQuad(
+    ResourceProvider* resource_provider,
+    const SharedQuadState* shared_quad_state,
+    RenderPass* render_pass,
+    const gfx::Transform& transform) {
+  return CreateCandidateVideoQuadAt(resource_provider, shared_quad_state,
+                                    render_pass, kOverlayRect, transform);
+}
+
 void CreateCheckeredQuadAt(ResourceProvider* resource_provider,
                            const SharedQuadState* shared_quad_state,
                            RenderPass* render_pass,
                            const gfx::Rect& rect) {
   CheckerboardDrawQuad* checkerboard_quad =
       render_pass->CreateAndAppendDrawQuad<CheckerboardDrawQuad>();
   checkerboard_quad->SetNew(shared_quad_state, rect, rect, SkColor());
 }
 
 void CreateFullscreenCheckeredQuad(ResourceProvider* resource_provider,
@@ skipping 283 matching lines @@
   pass->shared_quad_state_list.back()->opacity = 0.5f;
 
   RenderPassList pass_list;
   pass_list.push_back(pass.Pass());
   OverlayCandidateList candidate_list;
   overlay_processor_->ProcessForOverlays(&pass_list, &candidate_list);
   ASSERT_EQ(1U, pass_list.size());
   EXPECT_EQ(0U, candidate_list.size());
 }
 
-TEST_F(SingleOverlayOnTopTest, RejectTransform) {
+TEST_F(SingleOverlayOnTopTest, RejectNonScaleTransform) {
   scoped_ptr<RenderPass> pass = CreateRenderPass();
   CreateFullscreenCandidateQuad(resource_provider_.get(),
                                 pass->shared_quad_state_list.back(),
                                 pass.get());
-  pass->shared_quad_state_list.back()->content_to_target_transform.Scale(2.f,
-                                                                         2.f);
+  pass->shared_quad_state_list.back()
+      ->content_to_target_transform.RotateAboutXAxis(45.f);
 
   RenderPassList pass_list;
   pass_list.push_back(pass.Pass());
   OverlayCandidateList candidate_list;
   overlay_processor_->ProcessForOverlays(&pass_list, &candidate_list);
   ASSERT_EQ(1U, pass_list.size());
   EXPECT_EQ(0U, candidate_list.size());
 }
 
+TEST_F(SingleOverlayOnTopTest, RejectNegativeScaleTransform) {
+  scoped_ptr<RenderPass> pass = CreateRenderPass();
+  CreateFullscreenCandidateQuad(resource_provider_.get(),
+                                pass->shared_quad_state_list.back(),
+                                pass.get());
+  pass->shared_quad_state_list.back()->content_to_target_transform.Scale(2.0f,
+                                                                         -1.0f);
+
+  RenderPassList pass_list;
+  pass_list.push_back(pass.Pass());
+  OverlayCandidateList candidate_list;
+  overlay_processor_->ProcessForOverlays(&pass_list, &candidate_list);
+  ASSERT_EQ(1U, pass_list.size());
+  EXPECT_EQ(0U, candidate_list.size());
+}
+
+TEST_F(SingleOverlayOnTopTest, AllowPositiveScaleTransform) {
+  gfx::Rect rect = kOverlayRect;
+  rect.set_width(rect.width() / 2);
+  scoped_ptr<RenderPass> pass = CreateRenderPass();
+  CreateCandidateQuadAt(resource_provider_.get(),
+                        pass->shared_quad_state_list.back(), pass.get(), rect);
+  pass->shared_quad_state_list.back()->content_to_target_transform.Scale(2.0f,
+                                                                         1.0f);
+
+  RenderPassList pass_list;
+  pass_list.push_back(pass.Pass());
+  OverlayCandidateList candidate_list;
+  overlay_processor_->ProcessForOverlays(&pass_list, &candidate_list);
+  ASSERT_EQ(1U, pass_list.size());
+  EXPECT_EQ(2U, candidate_list.size());
+}
+
 TEST_F(SingleOverlayOnTopTest, AllowNotTopIfNotOccluded) {
   scoped_ptr<RenderPass> pass = CreateRenderPass();
   CreateCheckeredQuadAt(resource_provider_.get(),
                         pass->shared_quad_state_list.back(),
                         pass.get(),
                         kOverlayTopLeftRect);
   CreateCandidateQuadAt(resource_provider_.get(),
                         pass->shared_quad_state_list.back(),
                         pass.get(),
                         kOverlayBottomRightRect);
 
   RenderPassList pass_list;
   pass_list.push_back(pass.Pass());
 
   RenderPassList original_pass_list;
   RenderPass::CopyAll(pass_list, &original_pass_list);
 
   OverlayCandidateList candidate_list;
   overlay_processor_->ProcessForOverlays(&pass_list, &candidate_list);
   EXPECT_EQ(1U, pass_list.size());
   EXPECT_EQ(2U, candidate_list.size());
 }
 
+TEST_F(SingleOverlayOnTopTest, RejectVideoSwapTransform) {
+  scoped_ptr<RenderPass> pass = CreateRenderPass();
+  CreateFullscreenCandidateVideoQuad(resource_provider_.get(),
+                                     pass->shared_quad_state_list.back(),
+                                     pass.get(), kSwapTransform);
+
+  RenderPassList pass_list;
+  pass_list.push_back(pass.Pass());
+  OverlayCandidateList candidate_list;
+  overlay_processor_->ProcessForOverlays(&pass_list, &candidate_list);
+  ASSERT_EQ(1U, pass_list.size());
+  EXPECT_EQ(0U, candidate_list.size());
+}
+
+TEST_F(SingleOverlayOnTopTest, AllowVideoXMirrorTransform) {
+  scoped_ptr<RenderPass> pass = CreateRenderPass();
+  CreateFullscreenCandidateVideoQuad(resource_provider_.get(),
+                                     pass->shared_quad_state_list.back(),
+                                     pass.get(), kXMirrorTransform);
+
+  RenderPassList pass_list;
+  pass_list.push_back(pass.Pass());
+  OverlayCandidateList candidate_list;
+  overlay_processor_->ProcessForOverlays(&pass_list, &candidate_list);
+  ASSERT_EQ(1U, pass_list.size());
+  EXPECT_EQ(2U, candidate_list.size());
+}
+
+TEST_F(SingleOverlayOnTopTest, AllowVideoBothMirrorTransform) {
+  scoped_ptr<RenderPass> pass = CreateRenderPass();
+  CreateFullscreenCandidateVideoQuad(resource_provider_.get(),
+                                     pass->shared_quad_state_list.back(),
+                                     pass.get(), kBothMirrorTransform);
+
+  RenderPassList pass_list;
+  pass_list.push_back(pass.Pass());
+  OverlayCandidateList candidate_list;
+  overlay_processor_->ProcessForOverlays(&pass_list, &candidate_list);
+  ASSERT_EQ(1U, pass_list.size());
+  EXPECT_EQ(2U, candidate_list.size());
+}
+
+TEST_F(SingleOverlayOnTopTest, AllowVideoNormalTransform) {
+  scoped_ptr<RenderPass> pass = CreateRenderPass();
+  CreateFullscreenCandidateVideoQuad(resource_provider_.get(),
+                                     pass->shared_quad_state_list.back(),
+                                     pass.get(), kNormalTransform);
+
+  RenderPassList pass_list;
+  pass_list.push_back(pass.Pass());
+  OverlayCandidateList candidate_list;
+  overlay_processor_->ProcessForOverlays(&pass_list, &candidate_list);
+  ASSERT_EQ(1U, pass_list.size());
+  EXPECT_EQ(2U, candidate_list.size());
+}
+
+TEST_F(SingleOverlayOnTopTest, AllowVideoYMirrorTransform) {
+  scoped_ptr<RenderPass> pass = CreateRenderPass();
+  CreateFullscreenCandidateVideoQuad(resource_provider_.get(),
+                                     pass->shared_quad_state_list.back(),
+                                     pass.get(), kYMirrorTransform);
+
+  RenderPassList pass_list;
+  pass_list.push_back(pass.Pass());
+  OverlayCandidateList candidate_list;
+  overlay_processor_->ProcessForOverlays(&pass_list, &candidate_list);
+  ASSERT_EQ(1U, pass_list.size());
+  EXPECT_EQ(2U, candidate_list.size());
+}
+
 class OverlayInfoRendererGL : public GLRenderer {
  public:
   OverlayInfoRendererGL(RendererClient* client,
                         const RendererSettings* settings,
                         OutputSurface* output_surface,
                         ResourceProvider* resource_provider)
       : GLRenderer(client,
                    settings,
                    output_surface,
                    resource_provider,
@@ skipping 271 matching lines @@
   renderer_->BeginDrawingFrame(&frame3);
   renderer_->FinishDrawingFrame(&frame3);
   EXPECT_TRUE(resource_provider_->InUseByConsumer(resource1));
   SwapBuffers();
   EXPECT_FALSE(resource_provider_->InUseByConsumer(resource1));
   Mock::VerifyAndClearExpectations(&scheduler_);
 }
 
 }  // namespace
 }  // namespace cc