1 /*
2 * Copyright 2019 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 ATRACE_TAG ATRACE_TAG_GRAPHICS
18 #define LOG_TAG "SamplingTest"
19
20 #include <chrono>
21 #include <thread>
22
23 #include <android/gui/BnRegionSamplingListener.h>
24 #include <binder/IPCThreadState.h>
25 #include <binder/ProcessState.h>
26 #include <gui/ISurfaceComposer.h>
27 #include <gui/SurfaceComposerClient.h>
28 #include <gui/SurfaceControl.h>
29 #include <private/gui/ComposerServiceAIDL.h>
30 #include <utils/Trace.h>
31
32 using namespace std::chrono_literals;
33
34 namespace android {
35
36 class Button : public gui::BnRegionSamplingListener {
37 public:
Button(const char * name,const Rect & samplingArea)38 Button(const char* name, const Rect& samplingArea) {
39 sp<SurfaceComposerClient> client = new SurfaceComposerClient;
40
41 mButton = client->createSurface(String8(name), 0, 0, PIXEL_FORMAT_RGBA_8888,
42 ISurfaceComposerClient::eFXSurfaceEffect);
43
44 const int32_t width = samplingArea.getWidth();
45 const int32_t height = samplingArea.getHeight();
46
47 SurfaceComposerClient::Transaction{}
48 .setLayer(mButton, 0x7fffffff)
49 .setCrop(mButton, {0, 0, width - 2 * BUTTON_PADDING, height - 2 * BUTTON_PADDING})
50 .setPosition(mButton, samplingArea.left + BUTTON_PADDING,
51 samplingArea.top + BUTTON_PADDING)
52 .setColor(mButton, half3{1, 1, 1})
53 .show(mButton)
54 .apply();
55
56 mButtonBlend = client->createSurface(String8(name) + "Blend", 0, 0, PIXEL_FORMAT_RGBA_8888,
57 ISurfaceComposerClient::eFXSurfaceEffect);
58
59 SurfaceComposerClient::Transaction{}
60 .setLayer(mButtonBlend, 0x7ffffffe)
61 .setCrop(mButtonBlend,
62 {0, 0, width - 2 * SAMPLE_AREA_PADDING, height - 2 * SAMPLE_AREA_PADDING})
63 .setPosition(mButtonBlend, samplingArea.left + SAMPLE_AREA_PADDING,
64 samplingArea.top + SAMPLE_AREA_PADDING)
65 .setColor(mButtonBlend, half3{1, 1, 1})
66 .setAlpha(mButtonBlend, 0.2)
67 .show(mButtonBlend)
68 .apply(true);
69
70 const bool HIGHLIGHT_SAMPLING_AREA = false;
71 if (HIGHLIGHT_SAMPLING_AREA) {
72 mSamplingArea =
73 client->createSurface(String8("SamplingArea"), 0, 0, PIXEL_FORMAT_RGBA_8888,
74 ISurfaceComposerClient::eFXSurfaceEffect);
75
76 SurfaceComposerClient::Transaction{}
77 .setLayer(mSamplingArea, 0x7ffffffd)
78 .setCrop(mSamplingArea, {0, 0, 100, 32})
79 .setPosition(mSamplingArea, 490, 1606)
80 .setColor(mSamplingArea, half3{0, 1, 0})
81 .setAlpha(mSamplingArea, 0.1)
82 .show(mSamplingArea)
83 .apply();
84 }
85 }
86
getStopLayerHandle()87 sp<IBinder> getStopLayerHandle() { return mButtonBlend->getHandle(); }
88
89 private:
90 static const int32_t BLEND_WIDTH = 2;
91 static const int32_t SAMPLE_AREA_PADDING = 8;
92 static const int32_t BUTTON_PADDING = BLEND_WIDTH + SAMPLE_AREA_PADDING;
93
setColor(float color)94 void setColor(float color) {
95 const float complement = std::fmod(color + 0.5f, 1.0f);
96 SurfaceComposerClient::Transaction{}
97 .setColor(mButton, half3{complement, complement, complement})
98 .setColor(mButtonBlend, half3{color, color, color})
99 .apply();
100 }
101
onSampleCollected(float medianLuma)102 binder::Status onSampleCollected(float medianLuma) override {
103 ATRACE_CALL();
104 setColor(medianLuma);
105 return binder::Status::ok();
106 }
107
108 sp<SurfaceComposerClient> mClient;
109 sp<SurfaceControl> mButton;
110 sp<SurfaceControl> mButtonBlend;
111 sp<SurfaceControl> mSamplingArea;
112 };
113
114 } // namespace android
115
116 using namespace android;
117
main(int,const char **)118 int main(int, const char**) {
119 const Rect homeButtonArea{490, 1606, 590, 1654};
120 sp<android::Button> homeButton = new android::Button("HomeButton", homeButtonArea);
121 const Rect backButtonArea{200, 1606, 248, 1654};
122 sp<android::Button> backButton = new android::Button("BackButton", backButtonArea);
123
124 gui::ARect homeButtonAreaA;
125 homeButtonAreaA.left = 490;
126 homeButtonAreaA.top = 1606;
127 homeButtonAreaA.right = 590;
128 homeButtonAreaA.bottom = 1654;
129
130 gui::ARect backButtonAreaA;
131 backButtonAreaA.left = 200;
132 backButtonAreaA.top = 1606;
133 backButtonAreaA.right = 248;
134 backButtonAreaA.bottom = 1654;
135
136 sp<gui::ISurfaceComposer> composer = ComposerServiceAIDL::getComposerService();
137 composer->addRegionSamplingListener(homeButtonAreaA, homeButton->getStopLayerHandle(),
138 homeButton);
139 composer->addRegionSamplingListener(backButtonAreaA, backButton->getStopLayerHandle(),
140 backButton);
141
142 ProcessState::self()->startThreadPool();
143 IPCThreadState::self()->joinThreadPool();
144
145 return 0;
146 }
147