ash/touch/touch_transformer_controller_unittest.cc - chromium/src - Git at Google

 // 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 "ash/touch/touch_transformer_controller.h"

 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "ui/aura/window_tree_host.h"
 #include "ui/events/devices/device_data_manager.h"
 #include "ui/events/test/events_test_utils_x11.h"
 #include "ui/gfx/display.h"

 namespace ash {

 namespace {

 DisplayInfo CreateDisplayInfo(int64 id,
                               unsigned int touch_device_id,
                               const gfx::Rect& bounds) {
   DisplayInfo info(id, std::string(), false);
   info.SetBounds(bounds);
   info.set_touch_device_id(touch_device_id);

   // Create a default mode.
   std::vector<DisplayMode> default_modes(
       1, DisplayMode(bounds.size(), 60, false, true));
   info.SetDisplayModes(default_modes);

   return info;
 }

 ui::TouchscreenDevice CreateTouchscreenDevice(unsigned int id,
                                               const gfx::Size& size) {
   return ui::TouchscreenDevice(id, ui::InputDeviceType::INPUT_DEVICE_EXTERNAL,
                                size, 0);
 }

 }  //  namespace

 typedef test::AshTestBase TouchTransformerControllerTest;

 TEST_F(TouchTransformerControllerTest, MirrorModeLetterboxing) {
   // The internal display has native resolution of 2560x1700, and in
   // mirror mode it is configured as 1920x1200. This is in letterboxing
   // mode.
   DisplayInfo internal_display_info =
       CreateDisplayInfo(1, 10u, gfx::Rect(0, 0, 1920, 1200));
   internal_display_info.set_is_aspect_preserving_scaling(true);
   std::vector<DisplayMode> internal_modes;
   internal_modes.push_back(
       DisplayMode(gfx::Size(2560, 1700), 60, false, true));
   internal_modes.push_back(
       DisplayMode(gfx::Size(1920, 1200), 60, false, false));
   internal_display_info.SetDisplayModes(internal_modes);

   DisplayInfo external_display_info =
       CreateDisplayInfo(2, 11u, gfx::Rect(0, 0, 1920, 1200));

   gfx::Size fb_size(1920, 1200);

   // Create the touchscreens with the same size as the framebuffer so we can
   // share the tests between Ozone & X11.
   ui::TouchscreenDevice internal_touchscreen =
       CreateTouchscreenDevice(10, fb_size);
   ui::TouchscreenDevice external_touchscreen =
       CreateTouchscreenDevice(11, fb_size);

   TouchTransformerController* tt_controller =
       Shell::GetInstance()->touch_transformer_controller();
   ui::DeviceDataManager* device_manager = ui::DeviceDataManager::GetInstance();

   device_manager->UpdateTouchInfoForDisplay(
       internal_display_info.id(), internal_display_info.touch_device_id(),
       tt_controller->GetTouchTransform(internal_display_info,
                                        internal_display_info,
                                        internal_touchscreen, fb_size));

   device_manager->UpdateTouchInfoForDisplay(
       external_display_info.id(), external_display_info.touch_device_id(),
       tt_controller->GetTouchTransform(external_display_info,
                                        external_display_info,
                                        external_touchscreen, fb_size));

   EXPECT_EQ(1, device_manager->GetDisplayForTouchDevice(10));
   EXPECT_EQ(2, device_manager->GetDisplayForTouchDevice(11));

   // External touch display has the default TouchTransformer.
   float x = 100.0;
   float y = 100.0;
   device_manager->ApplyTouchTransformer(11, &x, &y);
   EXPECT_EQ(100, x);
   EXPECT_EQ(100, y);

   // In letterboxing, there is (1-2560*(1200/1920)/1700)/2 = 2.95% of the
   // height on both the top & bottom region of the screen is blank.
   // When touch events coming at Y range [0, 1200), the mapping should be
   // [0, ~35] ---> < 0
   // [~35, ~1165] ---> [0, 1200)
   // [~1165, 1200] ---> >= 1200
   x = 100.0;
   y = 35.0;
   device_manager->ApplyTouchTransformer(10, &x, &y);
   EXPECT_NEAR(100, x, 0.5);
   EXPECT_NEAR(0, y, 0.5);

   x = 100.0;
   y = 1165.0;
   device_manager->ApplyTouchTransformer(10, &x, &y);
   EXPECT_NEAR(100, x, 0.5);
   EXPECT_NEAR(1200, y, 0.5);
 }

 TEST_F(TouchTransformerControllerTest, MirrorModePillarboxing) {
   // The internal display has native resolution of 1366x768, and in
   // mirror mode it is configured as 1024x768. This is in pillarboxing
   // mode.
   DisplayInfo internal_display_info =
       CreateDisplayInfo(1, 10, gfx::Rect(0, 0, 1024, 768));
   internal_display_info.set_is_aspect_preserving_scaling(true);
   std::vector<DisplayMode> internal_modes;
   internal_modes.push_back(
       DisplayMode(gfx::Size(1366, 768), 60, false, true));
   internal_modes.push_back(
       DisplayMode(gfx::Size(1024, 768), 60, false, false));
   internal_display_info.SetDisplayModes(internal_modes);

   DisplayInfo external_display_info =
       CreateDisplayInfo(2, 11, gfx::Rect(0, 0, 1024, 768));

   gfx::Size fb_size(1024, 768);

   // Create the touchscreens with the same size as the framebuffer so we can
   // share the tests between Ozone & X11.
   ui::TouchscreenDevice internal_touchscreen =
       CreateTouchscreenDevice(10, fb_size);
   ui::TouchscreenDevice external_touchscreen =
       CreateTouchscreenDevice(11, fb_size);

   TouchTransformerController* tt_controller =
       Shell::GetInstance()->touch_transformer_controller();
   ui::DeviceDataManager* device_manager = ui::DeviceDataManager::GetInstance();

   device_manager->UpdateTouchInfoForDisplay(
       internal_display_info.id(), internal_display_info.touch_device_id(),
       tt_controller->GetTouchTransform(internal_display_info,
                                        internal_display_info,
                                        internal_touchscreen, fb_size));

   device_manager->UpdateTouchInfoForDisplay(
       external_display_info.id(), external_display_info.touch_device_id(),
       tt_controller->GetTouchTransform(external_display_info,
                                        external_display_info,
                                        external_touchscreen, fb_size));

   EXPECT_EQ(1, device_manager->GetDisplayForTouchDevice(10));
   EXPECT_EQ(2, device_manager->GetDisplayForTouchDevice(11));

   // External touch display has the default TouchTransformer.
   float x = 100.0;
   float y = 100.0;
   device_manager->ApplyTouchTransformer(11, &x, &y);
   EXPECT_EQ(100, x);
   EXPECT_EQ(100, y);

   // In pillarboxing, there is (1-768*(1024/768)/1366)/2 = 12.5% of the
   // width on both the left & rigth region of the screen is blank.
   // When touch events coming at X range [0, 1024), the mapping should be
   // [0, ~128] ---> < 0
   // [~128, ~896] ---> [0, 1024)
   // [~896, 1024] ---> >= 1024
   x = 128.0;
   y = 100.0;
   device_manager->ApplyTouchTransformer(10, &x, &y);
   EXPECT_NEAR(0, x, 0.5);
   EXPECT_NEAR(100, y, 0.5);

   x = 896.0;
   y = 100.0;
   device_manager->ApplyTouchTransformer(10, &x, &y);
   EXPECT_NEAR(1024, x, 0.5);
   EXPECT_NEAR(100, y, 0.5);
 }

 TEST_F(TouchTransformerControllerTest, SoftwareMirrorMode) {
   // External display 1 has size 1280x850. External display 2 has size
   // 1920x1080. When using software mirroring to mirror display 1 onto
   // display 2, the displays are in extended mode and we map touches from both
   // displays to display 1.
   // The total frame buffer is 1920x1990,
   // where 1990 = 850 + 60 (hidden gap) + 1080 and the second monitor is
   // translated to point (0, 950) in the framebuffer.
   DisplayInfo display1_info =
       CreateDisplayInfo(1, 10u, gfx::Rect(0, 0, 1280, 850));
   std::vector<DisplayMode> display1_modes;
   display1_modes.push_back(DisplayMode(gfx::Size(1280, 850), 60, false, true));
   display1_info.SetDisplayModes(display1_modes);

   DisplayInfo display2_info =
       CreateDisplayInfo(2, 11u, gfx::Rect(0, 950, 1920, 1080));
   std::vector<DisplayMode> display2_modes;
   display2_modes.push_back(DisplayMode(gfx::Size(1920, 1080), 60, false, true));
   display2_info.SetDisplayModes(display2_modes);

   gfx::Size fb_size(1920, 1990);

   // Create the touchscreens with the same size as the framebuffer so we can
   // share the tests between Ozone & X11.
   ui::TouchscreenDevice display1_touchscreen =
       CreateTouchscreenDevice(10, fb_size);
   ui::TouchscreenDevice display2_touchscreen =
       CreateTouchscreenDevice(11, fb_size);

   TouchTransformerController* tt_controller =
       Shell::GetInstance()->touch_transformer_controller();
   ui::DeviceDataManager* device_manager = ui::DeviceDataManager::GetInstance();

   device_manager->UpdateTouchInfoForDisplay(
       display1_info.id(), display1_info.touch_device_id(),
       tt_controller->GetTouchTransform(display1_info, display1_info,
                                        display1_touchscreen, fb_size));

   device_manager->UpdateTouchInfoForDisplay(
       display2_info.id(), display2_info.touch_device_id(),
       tt_controller->GetTouchTransform(display1_info, display2_info,
                                        display2_touchscreen, fb_size));

   EXPECT_EQ(1, device_manager->GetDisplayForTouchDevice(10));
   EXPECT_EQ(2, device_manager->GetDisplayForTouchDevice(11));

   // Mapping for touch events from display 1's touchscreen:
   // [0, 1920) x [0, 1990) -> [0, 1280) x [0, 850)
   float x = 0.0;
   float y = 0.0;
   device_manager->ApplyTouchTransformer(10, &x, &y);
   EXPECT_NEAR(0, x, 0.5);
   EXPECT_NEAR(0, y, 0.5);

   x = 1920.0;
   y = 1990.0;
   device_manager->ApplyTouchTransformer(10, &x, &y);
   EXPECT_NEAR(1280, x, 0.5);
   EXPECT_NEAR(850, y, 0.5);

   // In pillarboxing, there is (1-1280*(1080/850)/1920)/2 = 7.65% of the
   // width on both the left & right region of the screen is blank.
   // Events come in the range [0, 1920) x [0, 1990).
   //
   // X mapping:
   // [0, ~147] ---> < 0
   // [~147, ~1773] ---> [0, 1280)
   // [~1773, 1920] ---> >= 1280
   // Y mapping:
   // [0, 1990) -> [0, 1080)
   x = 147.0;
   y = 0.0;
   device_manager->ApplyTouchTransformer(11, &x, &y);
   EXPECT_NEAR(0, x, 0.5);
   EXPECT_NEAR(0, y, 0.5);

   x = 1773.0;
   y = 1990.0;
   device_manager->ApplyTouchTransformer(11, &x, &y);
   EXPECT_NEAR(1280, x, 0.5);
   EXPECT_NEAR(850, y, 0.5);
 }

 TEST_F(TouchTransformerControllerTest, ExtendedMode) {
   // The internal display has size 1366 x 768. The external display has
   // size 2560x1600. The total frame buffer is 2560x2428,
   // where 2428 = 768 + 60 (hidden gap) + 1600
   // and the second monitor is translated to Point (0, 828) in the
   // framebuffer.
   DisplayInfo display1 = CreateDisplayInfo(1, 5u, gfx::Rect(0, 0, 1366, 768));
   DisplayInfo display2 =
       CreateDisplayInfo(2, 6u, gfx::Rect(0, 828, 2560, 1600));
   gfx::Size fb_size(2560, 2428);

   // Create the touchscreens with the same size as the framebuffer so we can
   // share the tests between Ozone & X11.
   ui::TouchscreenDevice touchscreen1 = CreateTouchscreenDevice(5, fb_size);
   ui::TouchscreenDevice touchscreen2 = CreateTouchscreenDevice(6, fb_size);

   TouchTransformerController* tt_controller =
       Shell::GetInstance()->touch_transformer_controller();
   ui::DeviceDataManager* device_manager = ui::DeviceDataManager::GetInstance();

   device_manager->UpdateTouchInfoForDisplay(
       display1.id(), display1.touch_device_id(),
       tt_controller->GetTouchTransform(display1, display1, touchscreen1,
                                        fb_size));

   device_manager->UpdateTouchInfoForDisplay(
       display2.id(), display2.touch_device_id(),
       tt_controller->GetTouchTransform(display2, display2, touchscreen2,
                                        fb_size));

   EXPECT_EQ(1, device_manager->GetDisplayForTouchDevice(5));
   EXPECT_EQ(2, device_manager->GetDisplayForTouchDevice(6));

   // Mapping for touch events from internal touch display:
   // [0, 2560) x [0, 2428) -> [0, 1366) x [0, 768)
   float x = 0.0;
   float y = 0.0;
   device_manager->ApplyTouchTransformer(5, &x, &y);
   EXPECT_NEAR(0, x, 0.5);
   EXPECT_NEAR(0, y, 0.5);

   x = 2559.0;
   y = 2427.0;
   device_manager->ApplyTouchTransformer(5, &x, &y);
   EXPECT_NEAR(1365, x, 0.5);
   EXPECT_NEAR(768, y, 0.5);

   // Mapping for touch events from external touch display:
   // [0, 2560) x [0, 2428) -> [0, 2560) x [0, 1600)
   x = 0.0;
   y = 0.0;
   device_manager->ApplyTouchTransformer(6, &x, &y);
 #if defined(USE_OZONE)
   // On ozone we expect screen coordinates so add display origin.
   EXPECT_NEAR(0 + 0, x, 0.5);
   EXPECT_NEAR(0 + 828, y, 0.5);
 #else
   EXPECT_NEAR(0, x, 0.5);
   EXPECT_NEAR(0, y, 0.5);
 #endif

   x = 2559.0;
   y = 2427.0;
   device_manager->ApplyTouchTransformer(6, &x, &y);
 #if defined(USE_OZONE)
   // On ozone we expect screen coordinates so add display origin.
   EXPECT_NEAR(2559 + 0, x, 0.5);
   EXPECT_NEAR(1599 + 828, y, 0.5);
 #else
   EXPECT_NEAR(2559, x, 0.5);
   EXPECT_NEAR(1599, y, 0.5);
 #endif
 }

 TEST_F(TouchTransformerControllerTest, TouchRadiusScale) {
   DisplayInfo display = CreateDisplayInfo(1, 5u, gfx::Rect(0, 0, 2560, 1600));
   ui::TouchscreenDevice touch_device =
       CreateTouchscreenDevice(5, gfx::Size(1001, 1001));

   TouchTransformerController* tt_controller =
       Shell::GetInstance()->touch_transformer_controller();
   // Default touchscreen position range is 1001x1001;
   EXPECT_EQ(sqrt((2560.0 * 1600.0) / (1001.0 * 1001.0)),
             tt_controller->GetTouchResolutionScale(display, touch_device));
 }

 }  // namespace ash
	// 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 "ash/touch/touch_transformer_controller.h"

	#include "ash/shell.h"
	#include "ash/test/ash_test_base.h"
	#include "ui/aura/window_tree_host.h"
	#include "ui/events/devices/device_data_manager.h"
	#include "ui/events/test/events_test_utils_x11.h"
	#include "ui/gfx/display.h"

	namespace ash {

	namespace {

	DisplayInfo CreateDisplayInfo(int64 id,
	unsigned int touch_device_id,
	const gfx::Rect& bounds) {
	DisplayInfo info(id, std::string(), false);
	info.SetBounds(bounds);
	info.set_touch_device_id(touch_device_id);

	// Create a default mode.
	std::vector<DisplayMode> default_modes(
	1, DisplayMode(bounds.size(), 60, false, true));
	info.SetDisplayModes(default_modes);

	return info;
	}

	ui::TouchscreenDevice CreateTouchscreenDevice(unsigned int id,
	const gfx::Size& size) {
	return ui::TouchscreenDevice(id, ui::InputDeviceType::INPUT_DEVICE_EXTERNAL,
	size, 0);
	}

	} // namespace

	typedef test::AshTestBase TouchTransformerControllerTest;

	TEST_F(TouchTransformerControllerTest, MirrorModeLetterboxing) {
	// The internal display has native resolution of 2560x1700, and in
	// mirror mode it is configured as 1920x1200. This is in letterboxing
	// mode.
	DisplayInfo internal_display_info =
	CreateDisplayInfo(1, 10u, gfx::Rect(0, 0, 1920, 1200));
	internal_display_info.set_is_aspect_preserving_scaling(true);
	std::vector<DisplayMode> internal_modes;
	internal_modes.push_back(
	DisplayMode(gfx::Size(2560, 1700), 60, false, true));
	internal_modes.push_back(
	DisplayMode(gfx::Size(1920, 1200), 60, false, false));
	internal_display_info.SetDisplayModes(internal_modes);

	DisplayInfo external_display_info =
	CreateDisplayInfo(2, 11u, gfx::Rect(0, 0, 1920, 1200));

	gfx::Size fb_size(1920, 1200);

	// Create the touchscreens with the same size as the framebuffer so we can
	// share the tests between Ozone & X11.
	ui::TouchscreenDevice internal_touchscreen =
	CreateTouchscreenDevice(10, fb_size);
	ui::TouchscreenDevice external_touchscreen =
	CreateTouchscreenDevice(11, fb_size);

	TouchTransformerController* tt_controller =
	Shell::GetInstance()->touch_transformer_controller();
	ui::DeviceDataManager* device_manager = ui::DeviceDataManager::GetInstance();

	device_manager->UpdateTouchInfoForDisplay(
	internal_display_info.id(), internal_display_info.touch_device_id(),
	tt_controller->GetTouchTransform(internal_display_info,
	internal_display_info,
	internal_touchscreen, fb_size));

	device_manager->UpdateTouchInfoForDisplay(
	external_display_info.id(), external_display_info.touch_device_id(),
	tt_controller->GetTouchTransform(external_display_info,
	external_display_info,
	external_touchscreen, fb_size));

	EXPECT_EQ(1, device_manager->GetDisplayForTouchDevice(10));
	EXPECT_EQ(2, device_manager->GetDisplayForTouchDevice(11));

	// External touch display has the default TouchTransformer.
	float x = 100.0;
	float y = 100.0;
	device_manager->ApplyTouchTransformer(11, &x, &y);
	EXPECT_EQ(100, x);
	EXPECT_EQ(100, y);

	// In letterboxing, there is (1-2560*(1200/1920)/1700)/2 = 2.95% of the
	// height on both the top & bottom region of the screen is blank.
	// When touch events coming at Y range [0, 1200), the mapping should be
	// [0, ~35] ---> < 0
	// [~35, ~1165] ---> [0, 1200)
	// [~1165, 1200] ---> >= 1200
	x = 100.0;
	y = 35.0;
	device_manager->ApplyTouchTransformer(10, &x, &y);
	EXPECT_NEAR(100, x, 0.5);
	EXPECT_NEAR(0, y, 0.5);

	x = 100.0;
	y = 1165.0;
	device_manager->ApplyTouchTransformer(10, &x, &y);
	EXPECT_NEAR(100, x, 0.5);
	EXPECT_NEAR(1200, y, 0.5);
	}

	TEST_F(TouchTransformerControllerTest, MirrorModePillarboxing) {
	// The internal display has native resolution of 1366x768, and in
	// mirror mode it is configured as 1024x768. This is in pillarboxing
	// mode.
	DisplayInfo internal_display_info =
	CreateDisplayInfo(1, 10, gfx::Rect(0, 0, 1024, 768));
	internal_display_info.set_is_aspect_preserving_scaling(true);
	std::vector<DisplayMode> internal_modes;
	internal_modes.push_back(
	DisplayMode(gfx::Size(1366, 768), 60, false, true));
	internal_modes.push_back(
	DisplayMode(gfx::Size(1024, 768), 60, false, false));
	internal_display_info.SetDisplayModes(internal_modes);

	DisplayInfo external_display_info =
	CreateDisplayInfo(2, 11, gfx::Rect(0, 0, 1024, 768));

	gfx::Size fb_size(1024, 768);

	// Create the touchscreens with the same size as the framebuffer so we can
	// share the tests between Ozone & X11.
	ui::TouchscreenDevice internal_touchscreen =
	CreateTouchscreenDevice(10, fb_size);
	ui::TouchscreenDevice external_touchscreen =
	CreateTouchscreenDevice(11, fb_size);

	TouchTransformerController* tt_controller =
	Shell::GetInstance()->touch_transformer_controller();
	ui::DeviceDataManager* device_manager = ui::DeviceDataManager::GetInstance();

	device_manager->UpdateTouchInfoForDisplay(
	internal_display_info.id(), internal_display_info.touch_device_id(),
	tt_controller->GetTouchTransform(internal_display_info,
	internal_display_info,
	internal_touchscreen, fb_size));

	device_manager->UpdateTouchInfoForDisplay(
	external_display_info.id(), external_display_info.touch_device_id(),
	tt_controller->GetTouchTransform(external_display_info,
	external_display_info,
	external_touchscreen, fb_size));

	EXPECT_EQ(1, device_manager->GetDisplayForTouchDevice(10));
	EXPECT_EQ(2, device_manager->GetDisplayForTouchDevice(11));

	// External touch display has the default TouchTransformer.
	float x = 100.0;
	float y = 100.0;
	device_manager->ApplyTouchTransformer(11, &x, &y);
	EXPECT_EQ(100, x);
	EXPECT_EQ(100, y);

	// In pillarboxing, there is (1-768*(1024/768)/1366)/2 = 12.5% of the
	// width on both the left & rigth region of the screen is blank.
	// When touch events coming at X range [0, 1024), the mapping should be
	// [0, ~128] ---> < 0
	// [~128, ~896] ---> [0, 1024)
	// [~896, 1024] ---> >= 1024
	x = 128.0;
	y = 100.0;
	device_manager->ApplyTouchTransformer(10, &x, &y);
	EXPECT_NEAR(0, x, 0.5);
	EXPECT_NEAR(100, y, 0.5);

	x = 896.0;
	y = 100.0;
	device_manager->ApplyTouchTransformer(10, &x, &y);
	EXPECT_NEAR(1024, x, 0.5);
	EXPECT_NEAR(100, y, 0.5);
	}

	TEST_F(TouchTransformerControllerTest, SoftwareMirrorMode) {
	// External display 1 has size 1280x850. External display 2 has size
	// 1920x1080. When using software mirroring to mirror display 1 onto
	// display 2, the displays are in extended mode and we map touches from both
	// displays to display 1.
	// The total frame buffer is 1920x1990,
	// where 1990 = 850 + 60 (hidden gap) + 1080 and the second monitor is
	// translated to point (0, 950) in the framebuffer.
	DisplayInfo display1_info =
	CreateDisplayInfo(1, 10u, gfx::Rect(0, 0, 1280, 850));
	std::vector<DisplayMode> display1_modes;
	display1_modes.push_back(DisplayMode(gfx::Size(1280, 850), 60, false, true));
	display1_info.SetDisplayModes(display1_modes);

	DisplayInfo display2_info =
	CreateDisplayInfo(2, 11u, gfx::Rect(0, 950, 1920, 1080));
	std::vector<DisplayMode> display2_modes;
	display2_modes.push_back(DisplayMode(gfx::Size(1920, 1080), 60, false, true));
	display2_info.SetDisplayModes(display2_modes);

	gfx::Size fb_size(1920, 1990);

	// Create the touchscreens with the same size as the framebuffer so we can
	// share the tests between Ozone & X11.
	ui::TouchscreenDevice display1_touchscreen =
	CreateTouchscreenDevice(10, fb_size);
	ui::TouchscreenDevice display2_touchscreen =
	CreateTouchscreenDevice(11, fb_size);

	TouchTransformerController* tt_controller =
	Shell::GetInstance()->touch_transformer_controller();
	ui::DeviceDataManager* device_manager = ui::DeviceDataManager::GetInstance();

	device_manager->UpdateTouchInfoForDisplay(
	display1_info.id(), display1_info.touch_device_id(),
	tt_controller->GetTouchTransform(display1_info, display1_info,
	display1_touchscreen, fb_size));

	device_manager->UpdateTouchInfoForDisplay(
	display2_info.id(), display2_info.touch_device_id(),
	tt_controller->GetTouchTransform(display1_info, display2_info,
	display2_touchscreen, fb_size));

	EXPECT_EQ(1, device_manager->GetDisplayForTouchDevice(10));
	EXPECT_EQ(2, device_manager->GetDisplayForTouchDevice(11));

	// Mapping for touch events from display 1's touchscreen:
	// [0, 1920) x [0, 1990) -> [0, 1280) x [0, 850)
	float x = 0.0;
	float y = 0.0;
	device_manager->ApplyTouchTransformer(10, &x, &y);
	EXPECT_NEAR(0, x, 0.5);
	EXPECT_NEAR(0, y, 0.5);

	x = 1920.0;
	y = 1990.0;
	device_manager->ApplyTouchTransformer(10, &x, &y);
	EXPECT_NEAR(1280, x, 0.5);
	EXPECT_NEAR(850, y, 0.5);

	// In pillarboxing, there is (1-1280*(1080/850)/1920)/2 = 7.65% of the
	// width on both the left & right region of the screen is blank.
	// Events come in the range [0, 1920) x [0, 1990).
	//
	// X mapping:
	// [0, ~147] ---> < 0
	// [~147, ~1773] ---> [0, 1280)
	// [~1773, 1920] ---> >= 1280
	// Y mapping:
	// [0, 1990) -> [0, 1080)
	x = 147.0;
	y = 0.0;
	device_manager->ApplyTouchTransformer(11, &x, &y);
	EXPECT_NEAR(0, x, 0.5);
	EXPECT_NEAR(0, y, 0.5);

	x = 1773.0;
	y = 1990.0;
	device_manager->ApplyTouchTransformer(11, &x, &y);
	EXPECT_NEAR(1280, x, 0.5);
	EXPECT_NEAR(850, y, 0.5);
	}

	TEST_F(TouchTransformerControllerTest, ExtendedMode) {
	// The internal display has size 1366 x 768. The external display has
	// size 2560x1600. The total frame buffer is 2560x2428,
	// where 2428 = 768 + 60 (hidden gap) + 1600
	// and the second monitor is translated to Point (0, 828) in the
	// framebuffer.
	DisplayInfo display1 = CreateDisplayInfo(1, 5u, gfx::Rect(0, 0, 1366, 768));
	DisplayInfo display2 =
	CreateDisplayInfo(2, 6u, gfx::Rect(0, 828, 2560, 1600));
	gfx::Size fb_size(2560, 2428);

	// Create the touchscreens with the same size as the framebuffer so we can
	// share the tests between Ozone & X11.
	ui::TouchscreenDevice touchscreen1 = CreateTouchscreenDevice(5, fb_size);
	ui::TouchscreenDevice touchscreen2 = CreateTouchscreenDevice(6, fb_size);

	TouchTransformerController* tt_controller =
	Shell::GetInstance()->touch_transformer_controller();
	ui::DeviceDataManager* device_manager = ui::DeviceDataManager::GetInstance();

	device_manager->UpdateTouchInfoForDisplay(
	display1.id(), display1.touch_device_id(),
	tt_controller->GetTouchTransform(display1, display1, touchscreen1,
	fb_size));

	device_manager->UpdateTouchInfoForDisplay(
	display2.id(), display2.touch_device_id(),
	tt_controller->GetTouchTransform(display2, display2, touchscreen2,
	fb_size));

	EXPECT_EQ(1, device_manager->GetDisplayForTouchDevice(5));
	EXPECT_EQ(2, device_manager->GetDisplayForTouchDevice(6));

	// Mapping for touch events from internal touch display:
	// [0, 2560) x [0, 2428) -> [0, 1366) x [0, 768)
	float x = 0.0;
	float y = 0.0;
	device_manager->ApplyTouchTransformer(5, &x, &y);
	EXPECT_NEAR(0, x, 0.5);
	EXPECT_NEAR(0, y, 0.5);

	x = 2559.0;
	y = 2427.0;
	device_manager->ApplyTouchTransformer(5, &x, &y);
	EXPECT_NEAR(1365, x, 0.5);
	EXPECT_NEAR(768, y, 0.5);

	// Mapping for touch events from external touch display:
	// [0, 2560) x [0, 2428) -> [0, 2560) x [0, 1600)
	x = 0.0;
	y = 0.0;
	device_manager->ApplyTouchTransformer(6, &x, &y);
	#if defined(USE_OZONE)
	// On ozone we expect screen coordinates so add display origin.
	EXPECT_NEAR(0 + 0, x, 0.5);
	EXPECT_NEAR(0 + 828, y, 0.5);
	#else
	EXPECT_NEAR(0, x, 0.5);
	EXPECT_NEAR(0, y, 0.5);
	#endif

	x = 2559.0;
	y = 2427.0;
	device_manager->ApplyTouchTransformer(6, &x, &y);
	#if defined(USE_OZONE)
	// On ozone we expect screen coordinates so add display origin.
	EXPECT_NEAR(2559 + 0, x, 0.5);
	EXPECT_NEAR(1599 + 828, y, 0.5);
	#else
	EXPECT_NEAR(2559, x, 0.5);
	EXPECT_NEAR(1599, y, 0.5);
	#endif
	}

	TEST_F(TouchTransformerControllerTest, TouchRadiusScale) {
	DisplayInfo display = CreateDisplayInfo(1, 5u, gfx::Rect(0, 0, 2560, 1600));
	ui::TouchscreenDevice touch_device =
	CreateTouchscreenDevice(5, gfx::Size(1001, 1001));

	TouchTransformerController* tt_controller =
	Shell::GetInstance()->touch_transformer_controller();
	// Default touchscreen position range is 1001x1001;
	EXPECT_EQ(sqrt((2560.0 * 1600.0) / (1001.0 * 1001.0)),
	tt_controller->GetTouchResolutionScale(display, touch_device));
	}

	} // namespace ash