1 /*
2 * Copyright (C) 2007 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 // TODO(b/129481165): remove the #pragma below and fix conversion issues
18 #pragma clang diagnostic push
19 #pragma clang diagnostic ignored "-Wconversion"
20
21 // #define LOG_NDEBUG 0
22 #undef LOG_TAG
23 #define LOG_TAG "EffectLayer"
24
25 #include "EffectLayer.h"
26
27 #include <stdint.h>
28 #include <stdlib.h>
29 #include <sys/types.h>
30
31 #include <compositionengine/CompositionEngine.h>
32 #include <compositionengine/LayerFECompositionState.h>
33 #include <renderengine/RenderEngine.h>
34 #include <ui/GraphicBuffer.h>
35 #include <utils/Errors.h>
36 #include <utils/Log.h>
37
38 #include "DisplayDevice.h"
39 #include "SurfaceFlinger.h"
40
41 namespace android {
42 // ---------------------------------------------------------------------------
43
EffectLayer(const LayerCreationArgs & args)44 EffectLayer::EffectLayer(const LayerCreationArgs& args)
45 : Layer(args),
46 mCompositionState{mFlinger->getCompositionEngine().createLayerFECompositionState()} {}
47
48 EffectLayer::~EffectLayer() = default;
49
prepareClientCompositionList(compositionengine::LayerFE::ClientCompositionTargetSettings & targetSettings)50 std::vector<compositionengine::LayerFE::LayerSettings> EffectLayer::prepareClientCompositionList(
51 compositionengine::LayerFE::ClientCompositionTargetSettings& targetSettings) {
52 std::vector<compositionengine::LayerFE::LayerSettings> results;
53 std::optional<compositionengine::LayerFE::LayerSettings> layerSettings =
54 prepareClientComposition(targetSettings);
55 // Nothing to render.
56 if (!layerSettings) {
57 return {};
58 }
59
60 std::optional<compositionengine::LayerFE::LayerSettings> shadowSettings =
61 prepareShadowClientComposition(*layerSettings, targetSettings.viewport,
62 targetSettings.dataspace);
63 if (shadowSettings) {
64 results.push_back(*shadowSettings);
65 }
66
67 // If fill bounds are occluded or the fill color is invalid skip the fill settings.
68 if (targetSettings.realContentIsVisible && fillsColor()) {
69 // Set color for color fill settings.
70 layerSettings->source.solidColor = getColor().rgb;
71 results.push_back(*layerSettings);
72 } else if (hasBlur()) {
73 results.push_back(*layerSettings);
74 }
75
76 return results;
77 }
78
isVisible() const79 bool EffectLayer::isVisible() const {
80 return !isHiddenByPolicy() && getAlpha() > 0.0_hf && hasSomethingToDraw();
81 }
82
setColor(const half3 & color)83 bool EffectLayer::setColor(const half3& color) {
84 if (mCurrentState.color.r == color.r && mCurrentState.color.g == color.g &&
85 mCurrentState.color.b == color.b) {
86 return false;
87 }
88
89 mCurrentState.sequence++;
90 mCurrentState.color.r = color.r;
91 mCurrentState.color.g = color.g;
92 mCurrentState.color.b = color.b;
93 mCurrentState.modified = true;
94 setTransactionFlags(eTransactionNeeded);
95 return true;
96 }
97
setDataspace(ui::Dataspace dataspace)98 bool EffectLayer::setDataspace(ui::Dataspace dataspace) {
99 if (mCurrentState.dataspace == dataspace) {
100 return false;
101 }
102
103 mCurrentState.sequence++;
104 mCurrentState.dataspace = dataspace;
105 mCurrentState.modified = true;
106 setTransactionFlags(eTransactionNeeded);
107 return true;
108 }
109
preparePerFrameCompositionState()110 void EffectLayer::preparePerFrameCompositionState() {
111 Layer::preparePerFrameCompositionState();
112
113 auto* compositionState = editCompositionState();
114 compositionState->color = getColor();
115 compositionState->compositionType = Hwc2::IComposerClient::Composition::SOLID_COLOR;
116 }
117
getCompositionEngineLayerFE() const118 sp<compositionengine::LayerFE> EffectLayer::getCompositionEngineLayerFE() const {
119 return asLayerFE();
120 }
121
editCompositionState()122 compositionengine::LayerFECompositionState* EffectLayer::editCompositionState() {
123 return mCompositionState.get();
124 }
125
getCompositionState() const126 const compositionengine::LayerFECompositionState* EffectLayer::getCompositionState() const {
127 return mCompositionState.get();
128 }
129
isOpaque(const Layer::State & s) const130 bool EffectLayer::isOpaque(const Layer::State& s) const {
131 // Consider the layer to be opaque if its opaque flag is set or its effective
132 // alpha (considering the alpha of its parents as well) is 1.0;
133 return (s.flags & layer_state_t::eLayerOpaque) != 0 || getAlpha() == 1.0_hf;
134 }
135
getDataSpace() const136 ui::Dataspace EffectLayer::getDataSpace() const {
137 return mDrawingState.dataspace;
138 }
139
createClone()140 sp<Layer> EffectLayer::createClone() {
141 sp<EffectLayer> layer = mFlinger->getFactory().createEffectLayer(
142 LayerCreationArgs(mFlinger.get(), nullptr, mName + " (Mirror)", 0, 0, 0,
143 LayerMetadata()));
144 layer->setInitialValuesForClone(this);
145 return layer;
146 }
147
fillsColor() const148 bool EffectLayer::fillsColor() const {
149 return mDrawingState.color.r >= 0.0_hf && mDrawingState.color.g >= 0.0_hf &&
150 mDrawingState.color.b >= 0.0_hf;
151 }
152
hasBlur() const153 bool EffectLayer::hasBlur() const {
154 return getBackgroundBlurRadius() > 0;
155 }
156
157 } // namespace android
158
159 // TODO(b/129481165): remove the #pragma below and fix conversion issues
160 #pragma clang diagnostic pop // ignored "-Wconversion"
161