1 /*
2 * Copyright (C) 2018 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #define LOG_TAG "InputReaderBase"
18
19 //#define LOG_NDEBUG 0
20
21 #include "InputReaderBase.h"
22 #include "input/DisplayViewport.h"
23 #include "input/Input.h"
24
25 #include <android-base/stringprintf.h>
26 #include <android/log.h>
27 #include <ftl/enum.h>
28
29 #define INDENT " "
30 #define INDENT2 " "
31 #define INDENT3 " "
32 #define INDENT4 " "
33 #define INDENT5 " "
34
35 using android::base::StringPrintf;
36
37 namespace android {
38
39 // --- InputReaderConfiguration ---
40
getDisplayViewportByUniqueId(const std::string & uniqueDisplayId) const41 std::optional<DisplayViewport> InputReaderConfiguration::getDisplayViewportByUniqueId(
42 const std::string& uniqueDisplayId) const {
43 if (uniqueDisplayId.empty()) {
44 ALOGE("Empty string provided to %s", __func__);
45 return std::nullopt;
46 }
47 size_t count = 0;
48 std::optional<DisplayViewport> result = std::nullopt;
49 for (const DisplayViewport& currentViewport : mDisplays) {
50 if (uniqueDisplayId == currentViewport.uniqueId) {
51 result = std::make_optional(currentViewport);
52 count++;
53 }
54 }
55 if (count > 1) {
56 ALOGE("Found %zu viewports with uniqueId %s, but expected 1 at most",
57 count, uniqueDisplayId.c_str());
58 }
59 return result;
60 }
61
getDisplayViewportByType(ViewportType type) const62 std::optional<DisplayViewport> InputReaderConfiguration::getDisplayViewportByType(ViewportType type)
63 const {
64 size_t count = 0;
65 std::optional<DisplayViewport> result = std::nullopt;
66 for (const DisplayViewport& currentViewport : mDisplays) {
67 // Return the first match, or the default display if we're looking for the internal viewport
68 if (currentViewport.type == type) {
69 if (!result ||
70 (type == ViewportType::INTERNAL &&
71 currentViewport.displayId == ui::LogicalDisplayId::DEFAULT)) {
72 result = std::make_optional(currentViewport);
73 }
74 count++;
75 }
76 }
77 if (count > 1) {
78 ALOGW("Found %zu viewports with type %s, but expected 1 at most", count,
79 ftl::enum_string(type).c_str());
80 }
81 return result;
82 }
83
getDisplayViewportByPort(uint8_t displayPort) const84 std::optional<DisplayViewport> InputReaderConfiguration::getDisplayViewportByPort(
85 uint8_t displayPort) const {
86 for (const DisplayViewport& currentViewport : mDisplays) {
87 const std::optional<uint8_t>& physicalPort = currentViewport.physicalPort;
88 if (physicalPort && (*physicalPort == displayPort)) {
89 return std::make_optional(currentViewport);
90 }
91 }
92 return std::nullopt;
93 }
94
getDisplayViewportById(ui::LogicalDisplayId displayId) const95 std::optional<DisplayViewport> InputReaderConfiguration::getDisplayViewportById(
96 ui::LogicalDisplayId displayId) const {
97 for (const DisplayViewport& currentViewport : mDisplays) {
98 if (currentViewport.displayId == displayId) {
99 return std::make_optional(currentViewport);
100 }
101 }
102 return std::nullopt;
103 }
104
setDisplayViewports(const std::vector<DisplayViewport> & viewports)105 void InputReaderConfiguration::setDisplayViewports(const std::vector<DisplayViewport>& viewports) {
106 mDisplays = viewports;
107 }
108
dump(std::string & dump) const109 void InputReaderConfiguration::dump(std::string& dump) const {
110 for (const DisplayViewport& viewport : mDisplays) {
111 dumpViewport(dump, viewport);
112 }
113 }
114
dumpViewport(std::string & dump,const DisplayViewport & viewport) const115 void InputReaderConfiguration::dumpViewport(std::string& dump, const DisplayViewport& viewport)
116 const {
117 dump += StringPrintf(INDENT4 "%s\n", viewport.toString().c_str());
118 }
119
120
121 // -- TouchAffineTransformation --
applyTo(float & x,float & y) const122 void TouchAffineTransformation::applyTo(float& x, float& y) const {
123 float newX, newY;
124 newX = x * x_scale + y * x_ymix + x_offset;
125 newY = x * y_xmix + y * y_scale + y_offset;
126
127 x = newX;
128 y = newY;
129 }
130
131 } // namespace android
132