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