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touch_transformer_controller_unittest.cc
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// 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/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.AddInputDevice(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,
std::string(), 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_touchscreen.id,
tt_controller->GetTouchTransform(internal_display_info,
internal_display_info,
internal_touchscreen, fb_size));
device_manager->UpdateTouchInfoForDisplay(
internal_display_info.id(), external_touchscreen.id,
tt_controller->GetTouchTransform(external_display_info,
external_display_info,
external_touchscreen, fb_size));
EXPECT_EQ(1, device_manager->GetTargetDisplayForTouchDevice(10));
EXPECT_EQ(1, device_manager->GetTargetDisplayForTouchDevice(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_touchscreen.id,
tt_controller->GetTouchTransform(internal_display_info,
internal_display_info,
internal_touchscreen, fb_size));
device_manager->UpdateTouchInfoForDisplay(
internal_display_info.id(), external_touchscreen.id,
tt_controller->GetTouchTransform(external_display_info,
external_display_info,
external_touchscreen, fb_size));
EXPECT_EQ(1, device_manager->GetTargetDisplayForTouchDevice(10));
EXPECT_EQ(1, device_manager->GetTargetDisplayForTouchDevice(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_touchscreen.id,
tt_controller->GetTouchTransform(display1_info, display1_info,
display1_touchscreen, fb_size));
device_manager->UpdateTouchInfoForDisplay(
display1_info.id(), display2_touchscreen.id,
tt_controller->GetTouchTransform(display1_info, display2_info,
display2_touchscreen, fb_size));
EXPECT_EQ(1, device_manager->GetTargetDisplayForTouchDevice(10));
EXPECT_EQ(1, device_manager->GetTargetDisplayForTouchDevice(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(), touchscreen1.id,
tt_controller->GetTouchTransform(display1, display1, touchscreen1,
fb_size));
device_manager->UpdateTouchInfoForDisplay(
display2.id(), touchscreen2.id,
tt_controller->GetTouchTransform(display2, display2, touchscreen2,
fb_size));
EXPECT_EQ(1, device_manager->GetTargetDisplayForTouchDevice(5));
EXPECT_EQ(2, device_manager->GetTargetDisplayForTouchDevice(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