Move Format checks to HardwareDisplayPlane

ui/ozone/platform/drm/gpu/hardware_display_plane_manager_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 <drm_fourcc.h>
+
 #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}};
+const uint32_t kDummyFormat = 0;
 
 class FakeScanoutBuffer : public ui::ScanoutBuffer {
  public:
-  FakeScanoutBuffer() {}
+  FakeScanoutBuffer(uint32_t format) : format_(format) {}
 
   // 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); }
-  uint32_t GetFormat() const override { return 0; }
+  void SetFramebufferPixelFormat(uint32_t format) { format_ = format; }
+  uint32_t GetFramebufferPixelFormat() const override { return format_; }
 
  protected:
   ~FakeScanoutBuffer() override {}
+  uint32_t format_;
 };
 
 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(
+      scoped_ptr<ui::HardwareDisplayPlane> plane(new ui::HardwareDisplayPlane(
           planes[i].id, planes[i].allowed_crtc_mask));
+      // Add support to test more formats.
+      plane->Initialize(drm_, std::vector<uint32_t>(1, DRM_FORMAT_XRGB8888),
+                        false, true);
+      planes_.push_back(plane.Pass());
     }
     // 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,
@@ skipping 33 matching lines @@
   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();
+  fake_buffer_ = new FakeScanoutBuffer(DRM_FORMAT_XRGB8888);
   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_);
@@ skipping 104 matching lines @@
                               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_F(HardwareDisplayPlaneManagerTest, CheckFramebufferFormatMatch) {
+  ui::OverlayPlaneList assigns;
+  scoped_refptr<FakeScanoutBuffer> buffer = new FakeScanoutBuffer(kDummyFormat);
+  assigns.push_back(ui::OverlayPlane(buffer));
+  plane_manager_->InitForTest(kOnePlanePerCrtc, arraysize(kOnePlanePerCrtc),
+                              default_crtcs_);
+  plane_manager_->BeginFrame(&state_);
+  // This should return false as plane manager creates planes which support
+  // DRM_FORMAT_XRGB8888 while buffer returns kDummyFormat as its pixelFormat.
+  EXPECT_FALSE(plane_manager_->AssignOverlayPlanes(&state_, assigns,
+                                                   default_crtcs_[0], nullptr));
+  buffer->SetFramebufferPixelFormat(DRM_FORMAT_XRGB8888);
+  plane_manager_->BeginFrame(&state_);
+  EXPECT_TRUE(plane_manager_->AssignOverlayPlanes(&state_, assigns,
+                                                  default_crtcs_[0], nullptr));
+  buffer->SetFramebufferPixelFormat(DRM_FORMAT_ARGB8888);
+  plane_manager_->BeginFrame(&state_);
+  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();
+  scoped_refptr<FakeScanoutBuffer> fake_buffer =
+      new FakeScanoutBuffer(DRM_FORMAT_XRGB8888);
   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