Support removal of DRI platform

ui/gfx/ozone/impl/dri_surface_unittest.cc

-// Copyright 2013 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 "testing/gtest/include/gtest/gtest.h"
-#include "third_party/skia/include/core/SkCanvas.h"
-#include "third_party/skia/include/core/SkColor.h"
-#include "third_party/skia/include/core/SkDevice.h"
-#include "ui/gfx/ozone/impl/dri_skbitmap.h"
-#include "ui/gfx/ozone/impl/dri_surface.h"
-#include "ui/gfx/ozone/impl/hardware_display_controller.h"
-
-namespace {
-
-// Create a basic mode for a 6x4 screen.
-const drmModeModeInfo kDefaultMode =
-    {0, 6, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, {'\0'}};
-
-// Mock file descriptor ID.
-const int kFd = 3;
-
-// Mock connector ID.
-const uint32_t kConnectorId = 1;
-
-// Mock CRTC ID.
-const uint32_t kCrtcId = 1;
-
-// Mock DPMS property ID.
-const uint32_t kDPMSPropertyId = 1;
-
-class MockDriWrapper : public gfx::DriWrapper {
- public:
-  MockDriWrapper() : DriWrapper(""), id_(1) { fd_ = kFd; }
-  virtual ~MockDriWrapper() { fd_ = -1; }
-
-  virtual drmModeCrtc* GetCrtc(uint32_t crtc_id) OVERRIDE { return NULL; }
-  virtual void FreeCrtc(drmModeCrtc* crtc) OVERRIDE {}
-  virtual bool SetCrtc(uint32_t crtc_id,
-                       uint32_t framebuffer,
-                       uint32_t* connectors,
-                       drmModeModeInfo* mode) OVERRIDE { return true; }
-  virtual bool SetCrtc(drmModeCrtc* crtc, uint32_t* connectors) OVERRIDE {
-    return true;
-  }
-  virtual bool AddFramebuffer(const drmModeModeInfo& mode,
-                              uint8_t depth,
-                              uint8_t bpp,
-                              uint32_t stride,
-                              uint32_t handle,
-                              uint32_t* framebuffer) OVERRIDE {
-    *framebuffer = id_++;
-    return true;
-  }
-  virtual bool RemoveFramebuffer(uint32_t framebuffer) OVERRIDE { return true; }
-  virtual bool PageFlip(uint32_t crtc_id,
-                        uint32_t framebuffer,
-                        void* data) OVERRIDE {
-    return true;
-  }
-  virtual bool ConnectorSetProperty(uint32_t connector_id,
-                                    uint32_t property_id,
-                                    uint64_t value) OVERRIDE { return true; }
-
- private:
-  int id_;
-  DISALLOW_COPY_AND_ASSIGN(MockDriWrapper);
-};
-
-class MockDriSkBitmap : public gfx::DriSkBitmap {
- public:
-  MockDriSkBitmap(int fd,
-                       bool initialize_expectation)
-      : DriSkBitmap(fd),
-        initialize_expectation_(initialize_expectation) {}
-  virtual ~MockDriSkBitmap() {}
-
-  virtual bool Initialize() OVERRIDE {
-    if (!initialize_expectation_)
-      return false;
-
-    allocPixels();
-    // Clear the bitmap to black.
-    eraseColor(SK_ColorBLACK);
-
-    return true;
-  }
- private:
-  bool initialize_expectation_;
-
-  DISALLOW_COPY_AND_ASSIGN(MockDriSkBitmap);
-};
-
-class MockDriSurface : public gfx::DriSurface {
- public:
-  MockDriSurface(gfx::HardwareDisplayController* controller)
-      : DriSurface(controller),
-        initialize_expectation_(true) {}
-  virtual ~MockDriSurface() {}
-
-  void set_initialize_expectation(bool state) {
-    initialize_expectation_ = state;
-  }
-
- private:
-  virtual gfx::DriSkBitmap* CreateBuffer() OVERRIDE {
-    return new MockDriSkBitmap(kFd, initialize_expectation_);
-  }
-
-  bool initialize_expectation_;
-
-  DISALLOW_COPY_AND_ASSIGN(MockDriSurface);
-};
-
-}  // namespace
-
-class DriSurfaceTest : public testing::Test {
- public:
-  DriSurfaceTest() {}
-
-  virtual void SetUp() OVERRIDE;
-  virtual void TearDown() OVERRIDE;
-
- protected:
-  scoped_ptr<MockDriWrapper> drm_;
-  scoped_ptr<gfx::HardwareDisplayController> controller_;
-  scoped_ptr<MockDriSurface> surface_;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(DriSurfaceTest);
-};
-
-void DriSurfaceTest::SetUp() {
-  drm_.reset(new MockDriWrapper());
-  controller_.reset(new gfx::HardwareDisplayController());
-  controller_->SetControllerInfo(
-      drm_.get(), kConnectorId, kCrtcId, kDPMSPropertyId, kDefaultMode);
-
-  surface_.reset(new MockDriSurface(controller_.get()));
-}
-
-void DriSurfaceTest::TearDown() {
-  surface_.reset();
-  controller_.reset();
-  drm_.reset();
-}
-
-TEST_F(DriSurfaceTest, FailInitialization) {
-  surface_->set_initialize_expectation(false);
-  EXPECT_FALSE(surface_->Initialize());
-}
-
-TEST_F(DriSurfaceTest, SuccessfulInitialization) {
-  EXPECT_TRUE(surface_->Initialize());
-}
-
-TEST_F(DriSurfaceTest, CheckFBIDOnSwap) {
-  EXPECT_TRUE(surface_->Initialize());
-  controller_->BindSurfaceToController(
-      surface_.PassAs<gfx::DriSurface>());
-
-  // Check that the framebuffer ID is correct.
-  EXPECT_EQ(2u, controller_->get_surface()->GetFramebufferId());
-
-  controller_->get_surface()->SwapBuffers();
-
-  EXPECT_EQ(1u, controller_->get_surface()->GetFramebufferId());
-}
-
-TEST_F(DriSurfaceTest, CheckPixelPointerOnSwap) {
-  EXPECT_TRUE(surface_->Initialize());
-
-  void* bitmap_pixels1 = surface_->GetDrawableForWidget()->getDevice()
-      ->accessBitmap(false).getPixels();
-
-  surface_->SwapBuffers();
-
-  void* bitmap_pixels2 = surface_->GetDrawableForWidget()->getDevice()
-      ->accessBitmap(false).getPixels();
-
-  // Check that once the buffers have been swapped the drawable's underlying
-  // pixels have been changed.
-  EXPECT_NE(bitmap_pixels1, bitmap_pixels2);
-}
-
-TEST_F(DriSurfaceTest, CheckCorrectBufferSync) {
-  EXPECT_TRUE(surface_->Initialize());
-
-  SkCanvas* canvas = surface_->GetDrawableForWidget();
-  SkRect clip;
-  // Modify part of the canvas.
-  clip.set(0, 0,
-           canvas->getDeviceSize().width() / 2,
-           canvas->getDeviceSize().height() / 2);
-  canvas->clipRect(clip, SkRegion::kReplace_Op);
-
-  canvas->drawColor(SK_ColorWHITE);
-
-  surface_->SwapBuffers();
-
-  // Verify that the modified contents have been copied over on swap (make sure
-  // the 2 buffers have the same content).
-  for (int i = 0; i < canvas->getDeviceSize().height(); ++i) {
-    for (int j = 0; j < canvas->getDeviceSize().width(); ++j) {
-      if (i < clip.height() && j < clip.width())
-        EXPECT_EQ(SK_ColorWHITE,
-                  canvas->getDevice()->accessBitmap(false).getColor(j, i));
-      else
-        EXPECT_EQ(SK_ColorBLACK,
-                  canvas->getDevice()->accessBitmap(false).getColor(j, i));
-    }
-  }
-}