Ozone integration.

ui/ozone/platform/drm/gpu/hardware_display_plane_manager_unittest.cc

Index: ui/ozone/platform/drm/gpu/hardware_display_plane_manager_unittest.cc
diff --git a/ui/ozone/platform/drm/gpu/hardware_display_plane_manager_unittest.cc b/ui/ozone/platform/drm/gpu/hardware_display_plane_manager_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..f74497fbb4605e72f488ab3b9ad883a843ebf0b0
--- /dev/null
+++ b/ui/ozone/platform/drm/gpu/hardware_display_plane_manager_unittest.cc
@@ -0,0 +1,258 @@
+// 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 <vector>
+
+#include "base/memory/scoped_ptr.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/ozone/platform/drm/gpu/crtc_controller.h"
+#include "ui/ozone/platform/drm/gpu/hardware_display_controller.h"
+#include "ui/ozone/platform/drm/gpu/hardware_display_plane.h"
+#include "ui/ozone/platform/drm/gpu/hardware_display_plane_manager.h"
+#include "ui/ozone/platform/drm/gpu/hardware_display_plane_manager_legacy.h"
+#include "ui/ozone/platform/drm/gpu/overlay_plane.h"
+#include "ui/ozone/platform/drm/gpu/scanout_buffer.h"
+#include "ui/ozone/platform/drm/test/mock_drm_device.h"
+
+namespace {
+
+struct FakePlaneInfo {
+  uint32_t id;
+  uint32_t allowed_crtc_mask;
+};
+
+const FakePlaneInfo kOnePlanePerCrtc[] = {{10, 1}, {20, 2}};
+const FakePlaneInfo kTwoPlanesPerCrtc[] = {{10, 1}, {11, 1}, {20, 2}, {21, 2}};
+const FakePlaneInfo kOnePlanePerCrtcWithShared[] = {{10, 1}, {20, 2}, {50, 3}};
+
+class FakeScanoutBuffer : public ui::ScanoutBuffer {
+ public:
+  FakeScanoutBuffer() {}
+
+  // ui::ScanoutBuffer:
+  uint32_t GetFramebufferId() const override { return 1; }
+  uint32_t GetHandle() const override { return 0; }
+  gfx::Size GetSize() const override { return gfx::Size(1, 1); }
+
+ protected:
+  ~FakeScanoutBuffer() override {}
+};
+
+class FakePlaneManager : public ui::HardwareDisplayPlaneManager {
+ public:
+  FakePlaneManager() : plane_count_(0) {}
+  ~FakePlaneManager() override {}
+
+  // Normally we'd use DRM to figure out the controller configuration. But we
+  // can't use DRM in unit tests, so we just create a fake configuration.
+  void InitForTest(const FakePlaneInfo* planes,
+                   size_t count,
+                   const std::vector<uint32_t>& crtcs) {
+    crtcs_ = crtcs;
+    for (size_t i = 0; i < count; i++) {
+      planes_.push_back(new ui::HardwareDisplayPlane(
+          planes[i].id, planes[i].allowed_crtc_mask));
+    }
+    // The real HDPM uses sorted planes, so sort them for consistency.
+    std::sort(planes_.begin(), planes_.end(),
+              [](ui::HardwareDisplayPlane* l, ui::HardwareDisplayPlane* r) {
+                return l->plane_id() < r->plane_id();
+              });
+  }
+
+  bool Commit(ui::HardwareDisplayPlaneList* plane_list,
+              bool is_sync,
+              bool test_only) override {
+    return false;
+  }
+
+  bool SetPlaneData(ui::HardwareDisplayPlaneList* plane_list,
+                    ui::HardwareDisplayPlane* hw_plane,
+                    const ui::OverlayPlane& overlay,
+                    uint32_t crtc_id,
+                    const gfx::Rect& src_rect,
+                    ui::CrtcController* crtc) override {
+    // Check that the chosen plane is a legal choice for the crtc.
+    EXPECT_NE(-1, LookupCrtcIndex(crtc_id));
+    EXPECT_TRUE(hw_plane->CanUseForCrtc(LookupCrtcIndex(crtc_id)));
+    EXPECT_FALSE(hw_plane->in_use());
+    plane_count_++;
+    return true;
+  }
+
+  int plane_count() const { return plane_count_; }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(FakePlaneManager);
+
+  int plane_count_;
+};
+
+class HardwareDisplayPlaneManagerTest : public testing::Test {
+ public:
+  HardwareDisplayPlaneManagerTest() {}
+
+  void SetUp() override;
+
+ protected:
+  scoped_ptr<FakePlaneManager> plane_manager_;
+  ui::HardwareDisplayPlaneList state_;
+  std::vector<uint32_t> default_crtcs_;
+  scoped_refptr<ui::ScanoutBuffer> fake_buffer_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(HardwareDisplayPlaneManagerTest);
+};
+
+void HardwareDisplayPlaneManagerTest::SetUp() {
+  fake_buffer_ = new FakeScanoutBuffer();
+  plane_manager_.reset(new FakePlaneManager());
+  default_crtcs_.push_back(100);
+  default_crtcs_.push_back(200);
+}
+
+TEST_F(HardwareDisplayPlaneManagerTest, SinglePlaneAssignment) {
+  ui::OverlayPlaneList assigns;
+  assigns.push_back(ui::OverlayPlane(fake_buffer_));
+  plane_manager_->InitForTest(kOnePlanePerCrtc, arraysize(kOnePlanePerCrtc),
+                              default_crtcs_);
+  EXPECT_TRUE(plane_manager_->AssignOverlayPlanes(&state_, assigns,
+                                                  default_crtcs_[0], nullptr));
+  EXPECT_EQ(1, plane_manager_->plane_count());
+}
+
+TEST_F(HardwareDisplayPlaneManagerTest, BadCrtc) {
+  ui::OverlayPlaneList assigns;
+  assigns.push_back(ui::OverlayPlane(fake_buffer_));
+  plane_manager_->InitForTest(kOnePlanePerCrtc, arraysize(kOnePlanePerCrtc),
+                              default_crtcs_);
+  EXPECT_FALSE(
+      plane_manager_->AssignOverlayPlanes(&state_, assigns, 1, nullptr));
+}
+
+TEST_F(HardwareDisplayPlaneManagerTest, MultiplePlaneAssignment) {
+  ui::OverlayPlaneList assigns;
+  assigns.push_back(ui::OverlayPlane(fake_buffer_));
+  assigns.push_back(ui::OverlayPlane(fake_buffer_));
+  plane_manager_->InitForTest(kTwoPlanesPerCrtc, arraysize(kTwoPlanesPerCrtc),
+                              default_crtcs_);
+  EXPECT_TRUE(plane_manager_->AssignOverlayPlanes(&state_, assigns,
+                                                  default_crtcs_[0], nullptr));
+  EXPECT_EQ(2, plane_manager_->plane_count());
+}
+
+TEST_F(HardwareDisplayPlaneManagerTest, NotEnoughPlanes) {
+  ui::OverlayPlaneList assigns;
+  assigns.push_back(ui::OverlayPlane(fake_buffer_));
+  assigns.push_back(ui::OverlayPlane(fake_buffer_));
+  plane_manager_->InitForTest(kOnePlanePerCrtc, arraysize(kOnePlanePerCrtc),
+                              default_crtcs_);
+
+  EXPECT_FALSE(plane_manager_->AssignOverlayPlanes(&state_, assigns,
+                                                   default_crtcs_[0], nullptr));
+}
+
+TEST_F(HardwareDisplayPlaneManagerTest, MultipleCrtcs) {
+  ui::OverlayPlaneList assigns;
+  assigns.push_back(ui::OverlayPlane(fake_buffer_));
+  plane_manager_->InitForTest(kOnePlanePerCrtc, arraysize(kOnePlanePerCrtc),
+                              default_crtcs_);
+
+  EXPECT_TRUE(plane_manager_->AssignOverlayPlanes(&state_, assigns,
+                                                  default_crtcs_[0], nullptr));
+  EXPECT_TRUE(plane_manager_->AssignOverlayPlanes(&state_, assigns,
+                                                  default_crtcs_[1], nullptr));
+  EXPECT_EQ(2, plane_manager_->plane_count());
+}
+
+TEST_F(HardwareDisplayPlaneManagerTest, MultiplePlanesAndCrtcs) {
+  ui::OverlayPlaneList assigns;
+  assigns.push_back(ui::OverlayPlane(fake_buffer_));
+  assigns.push_back(ui::OverlayPlane(fake_buffer_));
+  plane_manager_->InitForTest(kTwoPlanesPerCrtc, arraysize(kTwoPlanesPerCrtc),
+                              default_crtcs_);
+  EXPECT_TRUE(plane_manager_->AssignOverlayPlanes(&state_, assigns,
+                                                  default_crtcs_[0], nullptr));
+  EXPECT_TRUE(plane_manager_->AssignOverlayPlanes(&state_, assigns,
+                                                  default_crtcs_[1], nullptr));
+  EXPECT_EQ(4, plane_manager_->plane_count());
+}
+
+TEST_F(HardwareDisplayPlaneManagerTest, MultipleFrames) {
+  ui::OverlayPlaneList assigns;
+  assigns.push_back(ui::OverlayPlane(fake_buffer_));
+  plane_manager_->InitForTest(kTwoPlanesPerCrtc, arraysize(kTwoPlanesPerCrtc),
+                              default_crtcs_);
+
+  EXPECT_TRUE(plane_manager_->AssignOverlayPlanes(&state_, assigns,
+                                                  default_crtcs_[0], nullptr));
+  EXPECT_EQ(1, plane_manager_->plane_count());
+  // Pretend we committed the frame.
+  state_.plane_list.swap(state_.old_plane_list);
+  plane_manager_->BeginFrame(&state_);
+  ui::HardwareDisplayPlane* old_plane = state_.old_plane_list[0];
+  // The same plane should be used.
+  EXPECT_TRUE(plane_manager_->AssignOverlayPlanes(&state_, assigns,
+                                                  default_crtcs_[0], nullptr));
+  EXPECT_EQ(2, plane_manager_->plane_count());
+  EXPECT_EQ(state_.plane_list[0], old_plane);
+}
+
+TEST_F(HardwareDisplayPlaneManagerTest, MultipleFramesDifferentPlanes) {
+  ui::OverlayPlaneList assigns;
+  assigns.push_back(ui::OverlayPlane(fake_buffer_));
+  plane_manager_->InitForTest(kTwoPlanesPerCrtc, arraysize(kTwoPlanesPerCrtc),
+                              default_crtcs_);
+
+  EXPECT_TRUE(plane_manager_->AssignOverlayPlanes(&state_, assigns,
+                                                  default_crtcs_[0], nullptr));
+  EXPECT_EQ(1, plane_manager_->plane_count());
+  // The other plane should be used.
+  EXPECT_TRUE(plane_manager_->AssignOverlayPlanes(&state_, assigns,
+                                                  default_crtcs_[0], nullptr));
+  EXPECT_EQ(2, plane_manager_->plane_count());
+  EXPECT_NE(state_.plane_list[0], state_.plane_list[1]);
+}
+
+TEST_F(HardwareDisplayPlaneManagerTest, SharedPlanes) {
+  ui::OverlayPlaneList assigns;
+  assigns.push_back(ui::OverlayPlane(fake_buffer_));
+  assigns.push_back(ui::OverlayPlane(fake_buffer_));
+  plane_manager_->InitForTest(kOnePlanePerCrtcWithShared,
+                              arraysize(kOnePlanePerCrtcWithShared),
+                              default_crtcs_);
+
+  EXPECT_TRUE(plane_manager_->AssignOverlayPlanes(&state_, assigns,
+                                                  default_crtcs_[1], nullptr));
+  EXPECT_EQ(2, plane_manager_->plane_count());
+  // The shared plane is now unavailable for use by the other CRTC.
+  EXPECT_FALSE(plane_manager_->AssignOverlayPlanes(&state_, assigns,
+                                                   default_crtcs_[0], nullptr));
+}
+
+TEST(HardwareDisplayPlaneManagerLegacyTest, UnusedPlanesAreReleased) {
+  std::vector<uint32_t> crtcs;
+  crtcs.push_back(100);
+  scoped_refptr<ui::MockDrmDevice> drm = new ui::MockDrmDevice(false, crtcs, 2);
+  ui::OverlayPlaneList assigns;
+  scoped_refptr<FakeScanoutBuffer> fake_buffer = new FakeScanoutBuffer();
+  assigns.push_back(ui::OverlayPlane(fake_buffer));
+  assigns.push_back(ui::OverlayPlane(fake_buffer));
+  ui::HardwareDisplayPlaneList hdpl;
+  ui::CrtcController crtc(drm, crtcs[0], 0);
+  drm->plane_manager()->BeginFrame(&hdpl);
+  EXPECT_TRUE(drm->plane_manager()->AssignOverlayPlanes(&hdpl, assigns,
+                                                        crtcs[0], &crtc));
+  EXPECT_TRUE(drm->plane_manager()->Commit(&hdpl, false, false));
+  assigns.clear();
+  assigns.push_back(ui::OverlayPlane(fake_buffer));
+  drm->plane_manager()->BeginFrame(&hdpl);
+  EXPECT_TRUE(drm->plane_manager()->AssignOverlayPlanes(&hdpl, assigns,
+                                                        crtcs[0], &crtc));
+  EXPECT_EQ(0, drm->get_overlay_clear_call_count());
+  EXPECT_TRUE(drm->plane_manager()->Commit(&hdpl, false, false));
+  EXPECT_EQ(1, drm->get_overlay_clear_call_count());
+}
+
+}  // namespace