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/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _LIBINPUT_DISPLAY_VIEWPORT_H
#define _LIBINPUT_DISPLAY_VIEWPORT_H
#include <cinttypes>
#include <optional>
#include <android-base/stringprintf.h>
#include <input/Input.h>
using android::base::StringPrintf;
namespace android {
enum {
DISPLAY_ORIENTATION_0 = 0,
DISPLAY_ORIENTATION_90 = 1,
DISPLAY_ORIENTATION_180 = 2,
DISPLAY_ORIENTATION_270 = 3
};
/**
* Describes the different type of viewports supported by input flinger.
* Keep in sync with values in InputManagerService.java.
*/
enum class ViewportType : int32_t {
VIEWPORT_INTERNAL = 1,
VIEWPORT_EXTERNAL = 2,
VIEWPORT_VIRTUAL = 3,
};
static const char* viewportTypeToString(ViewportType type) {
switch(type) {
case ViewportType::VIEWPORT_INTERNAL:
return "INTERNAL";
case ViewportType::VIEWPORT_EXTERNAL:
return "EXTERNAL";
case ViewportType::VIEWPORT_VIRTUAL:
return "VIRTUAL";
default:
return "UNKNOWN";
}
}
/*
* Describes how coordinates are mapped on a physical display.
* See com.android.server.display.DisplayViewport.
*/
struct DisplayViewport {
int32_t displayId; // -1 if invalid
int32_t orientation;
int32_t logicalLeft;
int32_t logicalTop;
int32_t logicalRight;
int32_t logicalBottom;
int32_t physicalLeft;
int32_t physicalTop;
int32_t physicalRight;
int32_t physicalBottom;
int32_t deviceWidth;
int32_t deviceHeight;
bool isActive;
std::string uniqueId;
// The actual (hardware) port that the associated display is connected to.
// Not all viewports will have this specified.
std::optional<uint8_t> physicalPort;
ViewportType type;
DisplayViewport()
: displayId(ADISPLAY_ID_NONE),
orientation(DISPLAY_ORIENTATION_0),
logicalLeft(0),
logicalTop(0),
logicalRight(0),
logicalBottom(0),
physicalLeft(0),
physicalTop(0),
physicalRight(0),
physicalBottom(0),
deviceWidth(0),
deviceHeight(0),
isActive(false),
uniqueId(),
physicalPort(std::nullopt),
type(ViewportType::VIEWPORT_INTERNAL) {}
bool operator==(const DisplayViewport& other) const {
return displayId == other.displayId && orientation == other.orientation &&
logicalLeft == other.logicalLeft && logicalTop == other.logicalTop &&
logicalRight == other.logicalRight && logicalBottom == other.logicalBottom &&
physicalLeft == other.physicalLeft && physicalTop == other.physicalTop &&
physicalRight == other.physicalRight && physicalBottom == other.physicalBottom &&
deviceWidth == other.deviceWidth && deviceHeight == other.deviceHeight &&
isActive == other.isActive && uniqueId == other.uniqueId &&
physicalPort == other.physicalPort && type == other.type;
}
bool operator!=(const DisplayViewport& other) const {
return !(*this == other);
}
inline bool isValid() const {
return displayId >= 0;
}
void setNonDisplayViewport(int32_t width, int32_t height) {
displayId = ADISPLAY_ID_NONE;
orientation = DISPLAY_ORIENTATION_0;
logicalLeft = 0;
logicalTop = 0;
logicalRight = width;
logicalBottom = height;
physicalLeft = 0;
physicalTop = 0;
physicalRight = width;
physicalBottom = height;
deviceWidth = width;
deviceHeight = height;
isActive = false;
uniqueId.clear();
physicalPort = std::nullopt;
type = ViewportType::VIEWPORT_INTERNAL;
}
std::string toString() const {
return StringPrintf("Viewport %s: displayId=%d, uniqueId=%s, port=%s, orientation=%d, "
"logicalFrame=[%d, %d, %d, %d], "
"physicalFrame=[%d, %d, %d, %d], "
"deviceSize=[%d, %d], "
"isActive=[%d]",
viewportTypeToString(type), displayId, uniqueId.c_str(),
physicalPort ? StringPrintf("%" PRIu8, *physicalPort).c_str()
: "<none>",
orientation, logicalLeft, logicalTop, logicalRight, logicalBottom,
physicalLeft, physicalTop, physicalRight, physicalBottom, deviceWidth,
deviceHeight, isActive);
}
};
} // namespace android
#endif // _LIBINPUT_DISPLAY_VIEWPORT_H
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