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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "testing/gtest/include/gtest/gtest.h"
      6 #include "third_party/skia/include/core/SkCanvas.h"
      7 #include "third_party/skia/include/core/SkColor.h"
      8 #include "third_party/skia/include/core/SkDevice.h"
      9 #include "ui/ozone/platform/dri/dri_buffer.h"
     10 #include "ui/ozone/platform/dri/dri_surface.h"
     11 #include "ui/ozone/platform/dri/hardware_display_controller.h"
     12 #include "ui/ozone/platform/dri/test/mock_dri_surface.h"
     13 #include "ui/ozone/platform/dri/test/mock_dri_wrapper.h"
     14 
     15 namespace {
     16 
     17 // Create a basic mode for a 6x4 screen.
     18 const drmModeModeInfo kDefaultMode =
     19     {0, 6, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, {'\0'}};
     20 
     21 }  // namespace
     22 
     23 class DriSurfaceTest : public testing::Test {
     24  public:
     25   DriSurfaceTest() {}
     26 
     27   virtual void SetUp() OVERRIDE;
     28   virtual void TearDown() OVERRIDE;
     29 
     30  protected:
     31   scoped_ptr<ui::MockDriWrapper> drm_;
     32   scoped_ptr<ui::HardwareDisplayController> controller_;
     33   scoped_ptr<ui::MockDriSurface> surface_;
     34 
     35  private:
     36   DISALLOW_COPY_AND_ASSIGN(DriSurfaceTest);
     37 };
     38 
     39 void DriSurfaceTest::SetUp() {
     40   drm_.reset(new ui::MockDriWrapper(3));
     41   controller_.reset(new ui::HardwareDisplayController(drm_.get(), 1, 1));
     42 
     43   surface_.reset(new ui::MockDriSurface(
     44       drm_.get(), gfx::Size(kDefaultMode.hdisplay, kDefaultMode.vdisplay)));
     45 }
     46 
     47 void DriSurfaceTest::TearDown() {
     48   surface_.reset();
     49   controller_.reset();
     50   drm_.reset();
     51 }
     52 
     53 TEST_F(DriSurfaceTest, FailInitialization) {
     54   surface_->set_initialize_expectation(false);
     55   EXPECT_FALSE(surface_->Initialize());
     56 }
     57 
     58 TEST_F(DriSurfaceTest, SuccessfulInitialization) {
     59   EXPECT_TRUE(surface_->Initialize());
     60 }
     61 
     62 TEST_F(DriSurfaceTest, CheckFBIDOnSwap) {
     63   EXPECT_TRUE(surface_->Initialize());
     64   controller_->BindSurfaceToController(surface_.PassAs<ui::ScanoutSurface>(),
     65                                        kDefaultMode);
     66 
     67   // Check that the framebuffer ID is correct.
     68   EXPECT_EQ(2u, controller_->surface()->GetFramebufferId());
     69 
     70   controller_->surface()->SwapBuffers();
     71 
     72   EXPECT_EQ(1u, controller_->surface()->GetFramebufferId());
     73 }
     74 
     75 TEST_F(DriSurfaceTest, CheckPixelPointerOnSwap) {
     76   EXPECT_TRUE(surface_->Initialize());
     77 
     78   void* bitmap_pixels1 = surface_->GetDrawableForWidget()->getDevice()
     79       ->accessBitmap(false).getPixels();
     80 
     81   surface_->SwapBuffers();
     82 
     83   void* bitmap_pixels2 = surface_->GetDrawableForWidget()->getDevice()
     84       ->accessBitmap(false).getPixels();
     85 
     86   // Check that once the buffers have been swapped the drawable's underlying
     87   // pixels have been changed.
     88   EXPECT_NE(bitmap_pixels1, bitmap_pixels2);
     89 }
     90 
     91 TEST_F(DriSurfaceTest, CheckCorrectBufferSync) {
     92   EXPECT_TRUE(surface_->Initialize());
     93 
     94   SkCanvas* canvas = surface_->GetDrawableForWidget();
     95   SkRect clip;
     96   // Modify part of the canvas.
     97   clip.set(0, 0,
     98            canvas->getDeviceSize().width() / 2,
     99            canvas->getDeviceSize().height() / 2);
    100   canvas->clipRect(clip, SkRegion::kReplace_Op);
    101 
    102   canvas->drawColor(SK_ColorWHITE);
    103 
    104   surface_->SwapBuffers();
    105 
    106   // Verify that the modified contents have been copied over on swap (make sure
    107   // the 2 buffers have the same content).
    108   for (int i = 0; i < canvas->getDeviceSize().height(); ++i) {
    109     for (int j = 0; j < canvas->getDeviceSize().width(); ++j) {
    110       if (i < clip.height() && j < clip.width())
    111         EXPECT_EQ(SK_ColorWHITE,
    112                   canvas->getDevice()->accessBitmap(false).getColor(j, i));
    113       else
    114         EXPECT_EQ(SK_ColorBLACK,
    115                   canvas->getDevice()->accessBitmap(false).getColor(j, i));
    116     }
    117   }
    118 }
    119