1 /**
2 * Copyright (C) 2022 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 "OverlayProperties"
18 // #define LOG_NDEBUG 0
19
20 #include <android/gui/OverlayProperties.h>
21 #include <binder/Parcel.h>
22 #include <gui/SurfaceComposerClient.h>
23 #include <nativehelper/JNIHelp.h>
24
25 #include "android_os_Parcel.h"
26 #include "core_jni_helpers.h"
27 #include "jni.h"
28
29 using namespace android;
30
31 // ----------------------------------------------------------------------------
32 // Types
33 // ----------------------------------------------------------------------------
34 static struct {
35 jclass clazz;
36 jmethodID ctor;
37 } gOverlayPropertiesClassInfo;
38 // ----------------------------------------------------------------------------
39 // OverlayProperties lifecycle
40 // ----------------------------------------------------------------------------
41
destroyOverlayProperties(gui::OverlayProperties * overlayProperties)42 static void destroyOverlayProperties(gui::OverlayProperties* overlayProperties) {
43 delete overlayProperties;
44 }
45
android_hardware_OverlayProperties_getDestructor(JNIEnv *,jclass)46 static jlong android_hardware_OverlayProperties_getDestructor(JNIEnv*, jclass) {
47 return static_cast<jlong>(reinterpret_cast<uintptr_t>(&destroyOverlayProperties));
48 }
49
50 //----------------------------------------------------------------------------
51 // Accessors
52 // ----------------------------------------------------------------------------
53
android_hardware_OverlayProperties_isCombinationSupported(JNIEnv * env,jobject thiz,jlong nativeObject,jint dataspace,jint format)54 static jboolean android_hardware_OverlayProperties_isCombinationSupported(JNIEnv* env, jobject thiz,
55 jlong nativeObject,
56 jint dataspace,
57 jint format) {
58 gui::OverlayProperties* properties = reinterpret_cast<gui::OverlayProperties*>(nativeObject);
59 if (properties != nullptr) {
60 for (const auto& i : properties->combinations) {
61 if (std::find(i.pixelFormats.begin(), i.pixelFormats.end(), format) !=
62 i.pixelFormats.end() &&
63 std::find(i.standards.begin(), i.standards.end(),
64 dataspace & HAL_DATASPACE_STANDARD_MASK) != i.standards.end() &&
65 std::find(i.transfers.begin(), i.transfers.end(),
66 dataspace & HAL_DATASPACE_TRANSFER_MASK) != i.transfers.end() &&
67 std::find(i.ranges.begin(), i.ranges.end(), dataspace & HAL_DATASPACE_RANGE_MASK) !=
68 i.ranges.end()) {
69 return true;
70 }
71 }
72 }
73 return false;
74 }
75
android_hardware_OverlayProperties_supportMixedColorSpaces(JNIEnv * env,jobject thiz,jlong nativeObject)76 static jboolean android_hardware_OverlayProperties_supportMixedColorSpaces(JNIEnv* env,
77 jobject thiz,
78 jlong nativeObject) {
79 gui::OverlayProperties* properties = reinterpret_cast<gui::OverlayProperties*>(nativeObject);
80 if (properties != nullptr && properties->supportMixedColorSpaces) {
81 return true;
82 }
83 return false;
84 }
85
android_hardware_OverlayProperties_createDefault(JNIEnv * env,jobject thiz)86 static jlong android_hardware_OverlayProperties_createDefault(JNIEnv* env, jobject thiz) {
87 gui::OverlayProperties* overlayProperties = new gui::OverlayProperties;
88 gui::OverlayProperties::SupportedBufferCombinations combination;
89 combination.pixelFormats = {HAL_PIXEL_FORMAT_RGBA_8888};
90 combination.standards = {HAL_DATASPACE_STANDARD_BT709};
91 combination.transfers = {HAL_DATASPACE_TRANSFER_SRGB};
92 combination.ranges = {HAL_DATASPACE_RANGE_FULL};
93 overlayProperties->combinations.emplace_back(combination);
94 overlayProperties->supportMixedColorSpaces = true;
95 return reinterpret_cast<jlong>(overlayProperties);
96 }
97
98 // ----------------------------------------------------------------------------
99 // Serialization
100 // ----------------------------------------------------------------------------
101
android_hardware_OverlayProperties_write(JNIEnv * env,jclass,jlong nativeObject,jobject dest)102 static void android_hardware_OverlayProperties_write(JNIEnv* env, jclass, jlong nativeObject,
103 jobject dest) {
104 Parcel* parcel = parcelForJavaObject(env, dest);
105 if (parcel == nullptr) {
106 jniThrowNullPointerException(env, nullptr);
107 return;
108 }
109 gui::OverlayProperties* overlayProperties =
110 reinterpret_cast<gui::OverlayProperties*>(nativeObject);
111 if (overlayProperties != nullptr) {
112 overlayProperties->writeToParcel(parcel);
113 }
114 }
115
android_hardware_OverlayProperties_read(JNIEnv * env,jclass,jobject in)116 static long android_hardware_OverlayProperties_read(JNIEnv* env, jclass, jobject in) {
117 Parcel* parcel = parcelForJavaObject(env, in);
118 if (parcel == nullptr) {
119 jniThrowNullPointerException(env, nullptr);
120 return 0;
121 }
122 gui::OverlayProperties* overlayProperties = new gui::OverlayProperties;
123 if (overlayProperties->readFromParcel(parcel) != NO_ERROR) {
124 delete overlayProperties;
125 return 0;
126 }
127 return reinterpret_cast<jlong>(overlayProperties);
128 }
129
130 // ----------------------------------------------------------------------------
131 // Public functions
132 // ----------------------------------------------------------------------------
133
134 namespace android {
135
android_hardware_OverlayProperties_convertToJavaObject(JNIEnv * env,gui::OverlayProperties * overlayProperties)136 jobject android_hardware_OverlayProperties_convertToJavaObject(
137 JNIEnv* env, gui::OverlayProperties* overlayProperties) {
138 jobject overlayPropertiesObj =
139 env->NewObject(gOverlayPropertiesClassInfo.clazz, gOverlayPropertiesClassInfo.ctor,
140 reinterpret_cast<jlong>(overlayProperties));
141 return overlayPropertiesObj;
142 }
143
144 }; // namespace android
145
146 // ----------------------------------------------------------------------------
147 // JNI Glue
148 // ----------------------------------------------------------------------------
149
150 const char* const kClassPathName = "android/hardware/OverlayProperties";
151
152 // clang-format off
153 static const JNINativeMethod gMethods[] = {
154 { "nGetDestructor", "()J", (void*) android_hardware_OverlayProperties_getDestructor },
155 { "nIsCombinationSupported", "(JII)Z",
156 (void*) android_hardware_OverlayProperties_isCombinationSupported },
157 { "nSupportMixedColorSpaces", "(J)Z",
158 (void*) android_hardware_OverlayProperties_supportMixedColorSpaces },
159 { "nWriteOverlayPropertiesToParcel", "(JLandroid/os/Parcel;)V",
160 (void*) android_hardware_OverlayProperties_write },
161 { "nReadOverlayPropertiesFromParcel", "(Landroid/os/Parcel;)J",
162 (void*) android_hardware_OverlayProperties_read },
163 {"nCreateDefault", "()J", (void*) android_hardware_OverlayProperties_createDefault },
164 };
165 // clang-format on
166
register_android_hardware_OverlayProperties(JNIEnv * env)167 int register_android_hardware_OverlayProperties(JNIEnv* env) {
168 int err = RegisterMethodsOrDie(env, kClassPathName, gMethods, NELEM(gMethods));
169
170 jclass clazz = FindClassOrDie(env, "android/hardware/OverlayProperties");
171 gOverlayPropertiesClassInfo.clazz = MakeGlobalRefOrDie(env, clazz);
172 gOverlayPropertiesClassInfo.ctor =
173 GetMethodIDOrDie(env, gOverlayPropertiesClassInfo.clazz, "<init>", "(J)V");
174 return err;
175 }
176