1 /*
2 * Copyright (C) 2017 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 "DisplayViewport-JNI"
18
19 #include <nativehelper/JNIHelp.h>
20 #include "core_jni_helpers.h"
21
22 #include <android_hardware_display_DisplayViewport.h>
23 #include <android_runtime/AndroidRuntime.h>
24 #include <android_runtime/Log.h>
25 #include <utils/Log.h>
26
27 #include <nativehelper/ScopedUtfChars.h>
28
29 namespace android {
30
31 // ----------------------------------------------------------------------------
32
33 static struct {
34 jclass clazz;
35
36 jfieldID displayId;
37 jfieldID isActive;
38 jfieldID orientation;
39 jfieldID logicalFrame;
40 jfieldID physicalFrame;
41 jfieldID deviceWidth;
42 jfieldID deviceHeight;
43 jfieldID uniqueId;
44 jfieldID physicalPort;
45 jfieldID type;
46 } gDisplayViewportClassInfo;
47
48 static struct {
49 jfieldID left;
50 jfieldID top;
51 jfieldID right;
52 jfieldID bottom;
53 } gRectClassInfo;
54
55 // ----------------------------------------------------------------------------
56
android_hardware_display_DisplayViewport_toNative(JNIEnv * env,jobject viewportObj,DisplayViewport * viewport)57 status_t android_hardware_display_DisplayViewport_toNative(JNIEnv* env, jobject viewportObj,
58 DisplayViewport* viewport) {
59 static const jclass byteClass = FindClassOrDie(env, "java/lang/Byte");
60 static const jmethodID byteValue = env->GetMethodID(byteClass, "byteValue", "()B");
61
62 viewport->displayId = env->GetIntField(viewportObj, gDisplayViewportClassInfo.displayId);
63 viewport->isActive = env->GetBooleanField(viewportObj, gDisplayViewportClassInfo.isActive);
64 viewport->orientation = env->GetIntField(viewportObj, gDisplayViewportClassInfo.orientation);
65 viewport->deviceWidth = env->GetIntField(viewportObj, gDisplayViewportClassInfo.deviceWidth);
66 viewport->deviceHeight = env->GetIntField(viewportObj, gDisplayViewportClassInfo.deviceHeight);
67
68 jstring uniqueId =
69 jstring(env->GetObjectField(viewportObj, gDisplayViewportClassInfo.uniqueId));
70 if (uniqueId != nullptr) {
71 viewport->uniqueId = ScopedUtfChars(env, uniqueId).c_str();
72 }
73
74 viewport->physicalPort = std::nullopt;
75 jobject physicalPort = env->GetObjectField(viewportObj, gDisplayViewportClassInfo.physicalPort);
76 if (physicalPort != nullptr) {
77 viewport->physicalPort = std::make_optional(env->CallByteMethod(physicalPort, byteValue));
78 }
79
80 viewport->type = static_cast<ViewportType>(env->GetIntField(viewportObj,
81 gDisplayViewportClassInfo.type));
82
83 jobject logicalFrameObj =
84 env->GetObjectField(viewportObj, gDisplayViewportClassInfo.logicalFrame);
85 viewport->logicalLeft = env->GetIntField(logicalFrameObj, gRectClassInfo.left);
86 viewport->logicalTop = env->GetIntField(logicalFrameObj, gRectClassInfo.top);
87 viewport->logicalRight = env->GetIntField(logicalFrameObj, gRectClassInfo.right);
88 viewport->logicalBottom = env->GetIntField(logicalFrameObj, gRectClassInfo.bottom);
89
90 jobject physicalFrameObj =
91 env->GetObjectField(viewportObj, gDisplayViewportClassInfo.physicalFrame);
92 viewport->physicalLeft = env->GetIntField(physicalFrameObj, gRectClassInfo.left);
93 viewport->physicalTop = env->GetIntField(physicalFrameObj, gRectClassInfo.top);
94 viewport->physicalRight = env->GetIntField(physicalFrameObj, gRectClassInfo.right);
95 viewport->physicalBottom = env->GetIntField(physicalFrameObj, gRectClassInfo.bottom);
96
97 return OK;
98 }
99
100 // ----------------------------------------------------------------------------
101
register_android_hardware_display_DisplayViewport(JNIEnv * env)102 int register_android_hardware_display_DisplayViewport(JNIEnv* env) {
103 jclass clazz = FindClassOrDie(env, "android/hardware/display/DisplayViewport");
104 gDisplayViewportClassInfo.clazz = MakeGlobalRefOrDie(env, clazz);
105
106 gDisplayViewportClassInfo.displayId = GetFieldIDOrDie(env,
107 gDisplayViewportClassInfo.clazz, "displayId", "I");
108
109 gDisplayViewportClassInfo.isActive =
110 GetFieldIDOrDie(env, gDisplayViewportClassInfo.clazz, "isActive", "Z");
111
112 gDisplayViewportClassInfo.orientation = GetFieldIDOrDie(env,
113 gDisplayViewportClassInfo.clazz, "orientation", "I");
114
115 gDisplayViewportClassInfo.deviceWidth = GetFieldIDOrDie(env,
116 gDisplayViewportClassInfo.clazz, "deviceWidth", "I");
117
118 gDisplayViewportClassInfo.deviceHeight = GetFieldIDOrDie(env,
119 gDisplayViewportClassInfo.clazz, "deviceHeight", "I");
120
121 gDisplayViewportClassInfo.logicalFrame = GetFieldIDOrDie(env,
122 gDisplayViewportClassInfo.clazz, "logicalFrame", "Landroid/graphics/Rect;");
123
124 gDisplayViewportClassInfo.physicalFrame = GetFieldIDOrDie(env,
125 gDisplayViewportClassInfo.clazz, "physicalFrame", "Landroid/graphics/Rect;");
126
127 gDisplayViewportClassInfo.uniqueId = GetFieldIDOrDie(env,
128 gDisplayViewportClassInfo.clazz, "uniqueId", "Ljava/lang/String;");
129
130 gDisplayViewportClassInfo.physicalPort = GetFieldIDOrDie(env,
131 gDisplayViewportClassInfo.clazz, "physicalPort", "Ljava/lang/Byte;");
132
133 gDisplayViewportClassInfo.type = GetFieldIDOrDie(env,
134 gDisplayViewportClassInfo.clazz, "type", "I");
135
136 clazz = FindClassOrDie(env, "android/graphics/Rect");
137 gRectClassInfo.left = GetFieldIDOrDie(env, clazz, "left", "I");
138 gRectClassInfo.top = GetFieldIDOrDie(env, clazz, "top", "I");
139 gRectClassInfo.right = GetFieldIDOrDie(env, clazz, "right", "I");
140 gRectClassInfo.bottom = GetFieldIDOrDie(env, clazz, "bottom", "I");
141
142 return 0;
143 }
144
145 } // namespace android
146