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The Android Open Source Projectedbf3b62009-03-03 19:31:44 -08001/*
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#ifndef ANDROID_LAYER_H
18#define ANDROID_LAYER_H
19
The Android Open Source Projectedbf3b62009-03-03 19:31:44 -080020#include <sys/types.h>
21
Mathias Agopian13127d82013-03-05 17:47:11 -080022#include <utils/RefBase.h>
23#include <utils/String8.h>
24#include <utils/Timers.h>
25
Dan Stoza80d61162017-12-20 15:57:52 -080026#include <ui/FloatRect.h>
Svetoslavd85084b2014-03-20 10:28:31 -070027#include <ui/FrameStats.h>
Mathias Agopian13127d82013-03-05 17:47:11 -080028#include <ui/GraphicBuffer.h>
29#include <ui/PixelFormat.h>
30#include <ui/Region.h>
31
32#include <gui/ISurfaceComposerClient.h>
Robert Carr4cdc58f2017-08-23 14:22:20 -070033#include <gui/LayerState.h>
David Sodman0cc69182017-11-17 12:12:07 -080034#include <gui/BufferQueue.h>
Mathias Agopian13127d82013-03-05 17:47:11 -080035
Dan Stoza7dde5992015-05-22 09:51:44 -070036#include <list>
Robert Carrcdf83202018-03-07 12:48:34 -080037#include <cstdint>
Dan Stoza7dde5992015-05-22 09:51:44 -070038
Mathias Agopian13127d82013-03-05 17:47:11 -080039#include "Client.h"
David Sodman41fdfc92017-11-06 16:09:56 -080040#include "FrameTracker.h"
Robert Carr1f0a16a2016-10-24 16:27:39 -070041#include "LayerVector.h"
Dan Stozab9b08832014-03-13 11:55:57 -070042#include "MonitoredProducer.h"
Mathias Agopian13127d82013-03-05 17:47:11 -080043#include "SurfaceFlinger.h"
The Android Open Source Projectedbf3b62009-03-03 19:31:44 -080044#include "Transform.h"
45
David Sodman41fdfc92017-11-06 16:09:56 -080046#include <layerproto/LayerProtoHeader.h>
Mathias Agopian13127d82013-03-05 17:47:11 -080047#include "DisplayHardware/HWComposer.h"
Chia-I Wuaaff73f2017-02-13 12:28:24 -080048#include "DisplayHardware/HWComposerBufferCache.h"
David Sodman41fdfc92017-11-06 16:09:56 -080049#include "RenderArea.h"
Mathias Agopian3f844832013-08-07 21:24:32 -070050#include "RenderEngine/Mesh.h"
Mathias Agopian49457ac2013-08-14 18:20:17 -070051#include "RenderEngine/Texture.h"
Mathias Agopian13127d82013-03-05 17:47:11 -080052
chaviw13fdc492017-06-27 12:40:18 -070053#include <math/vec4.h>
chaviw4b129c22018-04-09 16:19:43 -070054#include <vector>
chaviw13fdc492017-06-27 12:40:18 -070055
chaviw1d044282017-09-27 12:19:28 -070056using namespace android::surfaceflinger;
57
The Android Open Source Projectedbf3b62009-03-03 19:31:44 -080058namespace android {
59
60// ---------------------------------------------------------------------------
61
Mathias Agopian1f7bec62010-06-25 18:02:21 -070062class Client;
Mathias Agopian3e25fd82013-04-22 17:52:16 +020063class Colorizer;
Mathias Agopian13127d82013-03-05 17:47:11 -080064class DisplayDevice;
65class GraphicBuffer;
66class SurfaceFlinger;
Kalle Raitaa099a242017-01-11 11:17:29 -080067class LayerDebugInfo;
David Sodman9eeae692017-11-02 10:53:32 -070068class LayerBE;
The Android Open Source Projectedbf3b62009-03-03 19:31:44 -080069
Lloyd Pique4d234852018-01-22 17:21:36 -080070namespace impl {
71class SurfaceInterceptor;
72}
73
The Android Open Source Projectedbf3b62009-03-03 19:31:44 -080074// ---------------------------------------------------------------------------
75
David Sodman0cc69182017-11-17 12:12:07 -080076struct CompositionInfo {
77 HWC2::Composition compositionType;
78 sp<GraphicBuffer> mBuffer = nullptr;
79 int mBufferSlot = BufferQueue::INVALID_BUFFER_SLOT;
80 struct {
81 HWComposer* hwc;
82 sp<Fence> fence;
83 HWC2::BlendMode blendMode;
84 Rect displayFrame;
85 float alpha;
86 FloatRect sourceCrop;
87 HWC2::Transform transform;
88 int z;
89 int type;
90 int appId;
91 Region visibleRegion;
92 Region surfaceDamage;
93 sp<NativeHandle> sidebandStream;
94 android_dataspace dataspace;
95 hwc_color_t color;
96 } hwc;
97 struct {
Lloyd Pique144e1162017-12-20 16:44:52 -080098 RE::RenderEngine* renderEngine;
David Sodman0cc69182017-11-17 12:12:07 -080099 Mesh* mesh;
100 } renderEngine;
101};
102
David Sodman9eeae692017-11-02 10:53:32 -0700103class LayerBE {
104public:
105 LayerBE();
106
107 // The mesh used to draw the layer in GLES composition mode
108 Mesh mMesh;
109
David Sodman6f65f3e2017-11-03 14:28:09 -0700110 // HWC items, accessed from the main thread
111 struct HWCInfo {
112 HWCInfo()
113 : hwc(nullptr),
114 layer(nullptr),
115 forceClientComposition(false),
116 compositionType(HWC2::Composition::Invalid),
Yiwei Zhang068e31b2018-02-21 13:02:45 -0800117 clearClientTarget(false),
118 transform(HWC2::Transform::None) {}
David Sodman6f65f3e2017-11-03 14:28:09 -0700119
120 HWComposer* hwc;
121 HWC2::Layer* layer;
122 bool forceClientComposition;
123 HWC2::Composition compositionType;
124 bool clearClientTarget;
125 Rect displayFrame;
126 FloatRect sourceCrop;
127 HWComposerBufferCache bufferCache;
Yiwei Zhang068e31b2018-02-21 13:02:45 -0800128 HWC2::Transform transform;
David Sodman6f65f3e2017-11-03 14:28:09 -0700129 };
130
131 // A layer can be attached to multiple displays when operating in mirror mode
132 // (a.k.a: when several displays are attached with equal layerStack). In this
133 // case we need to keep track. In non-mirror mode, a layer will have only one
134 // HWCInfo. This map key is a display layerStack.
135 std::unordered_map<int32_t, HWCInfo> mHwcLayers;
David Sodman0cc69182017-11-17 12:12:07 -0800136
137 CompositionInfo compositionInfo;
David Sodman9eeae692017-11-02 10:53:32 -0700138};
139
David Sodman41fdfc92017-11-06 16:09:56 -0800140class Layer : public virtual RefBase {
Mathias Agopian13127d82013-03-05 17:47:11 -0800141 static int32_t sSequence;
142
Mathias Agopiand606de62010-05-10 20:06:11 -0700143public:
David Sodman9eeae692017-11-02 10:53:32 -0700144 LayerBE& getBE() { return mBE; }
145 LayerBE& getBE() const { return mBE; }
Mathias Agopian13127d82013-03-05 17:47:11 -0800146 mutable bool contentDirty;
147 // regions below are in window-manager space
148 Region visibleRegion;
149 Region coveredRegion;
150 Region visibleNonTransparentRegion;
Dan Stozaee44edd2015-03-23 15:50:23 -0700151 Region surfaceDamageRegion;
Andy McFadden4df87bd2014-04-21 18:08:54 -0700152
153 // Layer serial number. This gives layers an explicit ordering, so we
154 // have a stable sort order when their layer stack and Z-order are
155 // the same.
Mathias Agopian13127d82013-03-05 17:47:11 -0800156 int32_t sequence;
157
158 enum { // flags for doTransaction()
159 eDontUpdateGeometryState = 0x00000001,
160 eVisibleRegion = 0x00000002,
161 };
162
163 struct Geometry {
164 uint32_t w;
165 uint32_t h;
Robert Carr3dcabfa2016-03-01 18:36:58 -0800166 Transform transform;
167
David Sodman41fdfc92017-11-06 16:09:56 -0800168 inline bool operator==(const Geometry& rhs) const {
169 return (w == rhs.w && h == rhs.h) && (transform.tx() == rhs.transform.tx()) &&
Robert Carr99e27f02016-06-16 15:18:02 -0700170 (transform.ty() == rhs.transform.ty());
Mathias Agopian13127d82013-03-05 17:47:11 -0800171 }
David Sodman41fdfc92017-11-06 16:09:56 -0800172 inline bool operator!=(const Geometry& rhs) const { return !operator==(rhs); }
Mathias Agopian13127d82013-03-05 17:47:11 -0800173 };
174
175 struct State {
176 Geometry active;
177 Geometry requested;
Robert Carrae060832016-11-28 10:51:00 -0800178 int32_t z;
Fabien Sanglardf0c53d62017-03-03 18:58:50 -0800179
180 // The identifier of the layer stack this layer belongs to. A layer can
181 // only be associated to a single layer stack. A layer stack is a
182 // z-ordered group of layers which can be associated to one or more
183 // displays. Using the same layer stack on different displays is a way
184 // to achieve mirroring.
Mathias Agopian13127d82013-03-05 17:47:11 -0800185 uint32_t layerStack;
Fabien Sanglardf0c53d62017-03-03 18:58:50 -0800186
Mathias Agopian13127d82013-03-05 17:47:11 -0800187 uint8_t flags;
Dan Stoza7dde5992015-05-22 09:51:44 -0700188 uint8_t mask;
Mathias Agopian13127d82013-03-05 17:47:11 -0800189 uint8_t reserved[2];
190 int32_t sequence; // changes when visible regions can change
Dan Stoza7dde5992015-05-22 09:51:44 -0700191 bool modified;
192
Fabien Sanglard4ed383c2016-12-13 14:02:41 -0800193 // Crop is expressed in layer space coordinate.
Robert Carrb5d3d262016-03-25 15:08:13 -0700194 Rect crop;
Robert Carr99e27f02016-06-16 15:18:02 -0700195 Rect requestedCrop;
196
Fabien Sanglard4ed383c2016-12-13 14:02:41 -0800197 // finalCrop is expressed in display space coordinate.
Robert Carrb5d3d262016-03-25 15:08:13 -0700198 Rect finalCrop;
Robert Carr8d5227b2017-03-16 15:41:03 -0700199 Rect requestedFinalCrop;
Robert Carrb5d3d262016-03-25 15:08:13 -0700200
Robert Carr0d480722017-01-10 16:42:54 -0800201 // If set, defers this state update until the identified Layer
Dan Stoza7dde5992015-05-22 09:51:44 -0700202 // receives a frame with the given frameNumber
Robert Carr0d480722017-01-10 16:42:54 -0800203 wp<Layer> barrierLayer;
Dan Stoza7dde5992015-05-22 09:51:44 -0700204 uint64_t frameNumber;
205
Mathias Agopian2ca79392013-04-02 18:30:32 -0700206 // the transparentRegion hint is a bit special, it's latched only
207 // when we receive a buffer -- this is because it's "content"
208 // dependent.
209 Region activeTransparentRegion;
210 Region requestedTransparentRegion;
Peiyong Lin34beb7a2018-03-28 11:57:12 -0700211 ui::Dataspace dataSpace;
Daniel Nicoara2f5f8a52016-12-20 16:11:58 -0500212
rongliuccd34842018-03-14 12:26:23 -0700213 int32_t appId;
214 int32_t type;
Robert Carrdb66e622017-04-10 16:55:57 -0700215
216 // If non-null, a Surface this Surface's Z-order is interpreted relative to.
217 wp<Layer> zOrderRelativeOf;
218
219 // A list of surfaces whose Z-order is interpreted relative to ours.
220 SortedVector<wp<Layer>> zOrderRelatives;
chaviw13fdc492017-06-27 12:40:18 -0700221
222 half4 color;
Mathias Agopian13127d82013-03-05 17:47:11 -0800223 };
224
David Sodman41fdfc92017-11-06 16:09:56 -0800225 Layer(SurfaceFlinger* flinger, const sp<Client>& client, const String8& name, uint32_t w,
226 uint32_t h, uint32_t flags);
Mathias Agopianb7e930d2010-06-01 15:12:58 -0700227 virtual ~Layer();
The Android Open Source Projectedbf3b62009-03-03 19:31:44 -0800228
Chia-I Wuab0c3192017-08-01 11:29:00 -0700229 void setPrimaryDisplayOnly() { mPrimaryDisplayOnly = true; }
230
Robert Carr7bf247e2017-05-18 14:02:49 -0700231 // ------------------------------------------------------------------------
232 // Geometry setting functions.
233 //
234 // The following group of functions are used to specify the layers
235 // bounds, and the mapping of the texture on to those bounds. According
236 // to various settings changes to them may apply immediately, or be delayed until
237 // a pending resize is completed by the producer submitting a buffer. For example
238 // if we were to change the buffer size, and update the matrix ahead of the
239 // new buffer arriving, then we would be stretching the buffer to a different
240 // aspect before and after the buffer arriving, which probably isn't what we wanted.
241 //
242 // The first set of geometry functions are controlled by the scaling mode, described
243 // in window.h. The scaling mode may be set by the client, as it submits buffers.
244 // This value may be overriden through SurfaceControl, with setOverrideScalingMode.
245 //
246 // Put simply, if our scaling mode is SCALING_MODE_FREEZE, then
247 // matrix updates will not be applied while a resize is pending
248 // and the size and transform will remain in their previous state
249 // until a new buffer is submitted. If the scaling mode is another value
250 // then the old-buffer will immediately be scaled to the pending size
251 // and the new matrix will be immediately applied following this scaling
252 // transformation.
Robert Carr8d5227b2017-03-16 15:41:03 -0700253
Robert Carr7bf247e2017-05-18 14:02:49 -0700254 // Set the default buffer size for the assosciated Producer, in pixels. This is
255 // also the rendered size of the layer prior to any transformations. Parent
256 // or local matrix transformations will not affect the size of the buffer,
257 // but may affect it's on-screen size or clipping.
258 bool setSize(uint32_t w, uint32_t h);
259 // Set a 2x2 transformation matrix on the layer. This transform
260 // will be applied after parent transforms, but before any final
261 // producer specified transform.
262 bool setMatrix(const layer_state_t::matrix22_t& matrix);
263
264 // This second set of geometry attributes are controlled by
265 // setGeometryAppliesWithResize, and their default mode is to be
266 // immediate. If setGeometryAppliesWithResize is specified
267 // while a resize is pending, then update of these attributes will
268 // be delayed until the resize completes.
269
270 // setPosition operates in parent buffer space (pre parent-transform) or display
271 // space for top-level layers.
Robert Carr82364e32016-05-15 11:27:47 -0700272 bool setPosition(float x, float y, bool immediate);
Robert Carr7bf247e2017-05-18 14:02:49 -0700273 // Buffer space
Robert Carr8d5227b2017-03-16 15:41:03 -0700274 bool setCrop(const Rect& crop, bool immediate);
Robert Carr7bf247e2017-05-18 14:02:49 -0700275 // Parent buffer space/display space
Robert Carr8d5227b2017-03-16 15:41:03 -0700276 bool setFinalCrop(const Rect& crop, bool immediate);
277
Robert Carr7bf247e2017-05-18 14:02:49 -0700278 // TODO(b/38182121): Could we eliminate the various latching modes by
279 // using the layer hierarchy?
280 // -----------------------------------------------------------------------
Robert Carrae060832016-11-28 10:51:00 -0800281 bool setLayer(int32_t z);
Robert Carrdb66e622017-04-10 16:55:57 -0700282 bool setRelativeLayer(const sp<IBinder>& relativeToHandle, int32_t relativeZ);
283
Dan Stoza9e56aa02015-11-02 13:00:03 -0800284 bool setAlpha(float alpha);
chaviw13fdc492017-06-27 12:40:18 -0700285 bool setColor(const half3& color);
Mathias Agopian13127d82013-03-05 17:47:11 -0800286 bool setTransparentRegionHint(const Region& transparent);
287 bool setFlags(uint8_t flags, uint8_t mask);
Mathias Agopian13127d82013-03-05 17:47:11 -0800288 bool setLayerStack(uint32_t layerStack);
Peiyong Lin34beb7a2018-03-28 11:57:12 -0700289 bool setDataSpace(ui::Dataspace dataSpace);
290 ui::Dataspace getDataSpace() const;
Robert Carr1f0a16a2016-10-24 16:27:39 -0700291 uint32_t getLayerStack() const;
Robert Carr0d480722017-01-10 16:42:54 -0800292 void deferTransactionUntil(const sp<IBinder>& barrierHandle, uint64_t frameNumber);
293 void deferTransactionUntil(const sp<Layer>& barrierLayer, uint64_t frameNumber);
Robert Carrc3574f72016-03-24 12:19:32 -0700294 bool setOverrideScalingMode(int32_t overrideScalingMode);
rongliuccd34842018-03-14 12:26:23 -0700295 void setInfo(int32_t type, int32_t appId);
Robert Carr1db73f62016-12-21 12:58:51 -0800296 bool reparentChildren(const sp<IBinder>& layer);
Robert Carr15eae092018-03-23 13:43:53 -0700297 void setChildrenDrawingParent(const sp<Layer>& layer);
chaviwf1961f72017-09-18 16:41:07 -0700298 bool reparent(const sp<IBinder>& newParentHandle);
Robert Carr9524cb32017-02-13 11:32:32 -0800299 bool detachChildren();
Mathias Agopian13127d82013-03-05 17:47:11 -0800300
Peiyong Lindd9b2ae2018-03-01 16:22:45 -0800301 // Before color management is introduced, contents on Android have to be
302 // desaturated in order to match what they appears like visually.
303 // With color management, these contents will appear desaturated, thus
304 // needed to be saturated so that they match what they are designed for
305 // visually. When returns true, legacy SRGB data space is passed to HWC.
306 bool isLegacySrgbDataSpace() const;
307
Dan Stozaee44edd2015-03-23 15:50:23 -0700308 // If we have received a new buffer this frame, we will pass its surface
309 // damage down to hardware composer. Otherwise, we must send a region with
310 // one empty rect.
Robert Carr105e64b2018-03-07 12:47:50 -0800311 virtual void useSurfaceDamage() {}
312 virtual void useEmptyDamage() {}
Dan Stozaee44edd2015-03-23 15:50:23 -0700313
Mathias Agopian13127d82013-03-05 17:47:11 -0800314 uint32_t getTransactionFlags(uint32_t flags);
315 uint32_t setTransactionFlags(uint32_t flags);
316
Chia-I Wuab0c3192017-08-01 11:29:00 -0700317 bool belongsToDisplay(uint32_t layerStack, bool isPrimaryDisplay) const {
318 return getLayerStack() == layerStack && (!mPrimaryDisplayOnly || isPrimaryDisplay);
319 }
320
chaviwa76b2712017-09-20 12:02:26 -0700321 void computeGeometry(const RenderArea& renderArea, Mesh& mesh, bool useIdentityTransform) const;
Dan Stoza80d61162017-12-20 15:57:52 -0800322 FloatRect computeBounds(const Region& activeTransparentRegion) const;
323 FloatRect computeBounds() const;
Mathias Agopian13127d82013-03-05 17:47:11 -0800324
Pablo Ceballos40845df2016-01-25 17:41:15 -0800325 int32_t getSequence() const { return sequence; }
326
Mathias Agopian13127d82013-03-05 17:47:11 -0800327 // -----------------------------------------------------------------------
Mathias Agopian1eae0ee2013-06-05 16:59:15 -0700328 // Virtuals
David Sodman0c69cad2017-08-21 12:12:51 -0700329 virtual const char* getTypeId() const = 0;
Mathias Agopian13127d82013-03-05 17:47:11 -0800330
Mathias Agopian13127d82013-03-05 17:47:11 -0800331 /*
332 * isOpaque - true if this surface is opaque
Andy McFadden4125a4f2014-01-29 17:17:11 -0800333 *
334 * This takes into account the buffer format (i.e. whether or not the
335 * pixel format includes an alpha channel) and the "opaque" flag set
336 * on the layer. It does not examine the current plane alpha value.
Mathias Agopian13127d82013-03-05 17:47:11 -0800337 */
Robert Carr105e64b2018-03-07 12:47:50 -0800338 virtual bool isOpaque(const Layer::State&) const { return false; }
Mathias Agopian13127d82013-03-05 17:47:11 -0800339
340 /*
341 * isSecure - true if this surface is secure, that is if it prevents
342 * screenshots or VNC servers.
343 */
David Sodman0c69cad2017-08-21 12:12:51 -0700344 bool isSecure() const;
Mathias Agopian13127d82013-03-05 17:47:11 -0800345
346 /*
347 * isVisible - true if this layer is visible, false otherwise
348 */
David Sodman0c69cad2017-08-21 12:12:51 -0700349 virtual bool isVisible() const = 0;
The Android Open Source Projectedbf3b62009-03-03 19:31:44 -0800350
Mathias Agopian13127d82013-03-05 17:47:11 -0800351 /*
Robert Carr1f0a16a2016-10-24 16:27:39 -0700352 * isHiddenByPolicy - true if this layer has been forced invisible.
353 * just because this is false, doesn't mean isVisible() is true.
354 * For example if this layer has no active buffer, it may not be hidden by
355 * policy, but it still can not be visible.
356 */
David Sodman0c69cad2017-08-21 12:12:51 -0700357 bool isHiddenByPolicy() const;
Robert Carr1f0a16a2016-10-24 16:27:39 -0700358
359 /*
Mathias Agopian13127d82013-03-05 17:47:11 -0800360 * isFixedSize - true if content has a fixed size
361 */
Robert Carr105e64b2018-03-07 12:47:50 -0800362 virtual bool isFixedSize() const { return true; }
363
Jamie Gennis582270d2011-08-17 18:19:00 -0700364
chaviw8b3871a2017-11-01 17:41:01 -0700365 bool isPendingRemoval() const { return mPendingRemoval; }
366
David Sodman41fdfc92017-11-06 16:09:56 -0800367 void writeToProto(LayerProto* layerInfo,
368 LayerVector::StateSet stateSet = LayerVector::StateSet::Drawing);
chaviw1d044282017-09-27 12:19:28 -0700369
Yiwei Zhang068e31b2018-02-21 13:02:45 -0800370 void writeToProto(LayerProto* layerInfo, int32_t hwcId);
371
Mathias Agopian1eae0ee2013-06-05 16:59:15 -0700372protected:
373 /*
374 * onDraw - draws the surface.
375 */
chaviwa76b2712017-09-20 12:02:26 -0700376 virtual void onDraw(const RenderArea& renderArea, const Region& clip,
David Sodman0c69cad2017-08-21 12:12:51 -0700377 bool useIdentityTransform) const = 0;
Mathias Agopian1eae0ee2013-06-05 16:59:15 -0700378
379public:
Robert Carr105e64b2018-03-07 12:47:50 -0800380 virtual void setDefaultBufferSize(uint32_t /*w*/, uint32_t /*h*/) {}
David Sodmaneb085e02017-10-05 18:49:04 -0700381
Robert Carrae060832016-11-28 10:51:00 -0800382 void setGeometry(const sp<const DisplayDevice>& displayDevice, uint32_t z);
Dan Stoza9e56aa02015-11-02 13:00:03 -0800383 void forceClientComposition(int32_t hwcId);
chaviwc9232ed2017-11-14 15:31:15 -0800384 bool getForceClientComposition(int32_t hwcId);
David Sodmaneb085e02017-10-05 18:49:04 -0700385 virtual void setPerFrameData(const sp<const DisplayDevice>& displayDevice) = 0;
Dan Stoza9e56aa02015-11-02 13:00:03 -0800386
387 // callIntoHwc exists so we can update our local state and call
388 // acceptDisplayChanges without unnecessarily updating the device's state
David Sodman0c69cad2017-08-21 12:12:51 -0700389 void setCompositionType(int32_t hwcId, HWC2::Composition type, bool callIntoHwc = true);
Dan Stoza9e56aa02015-11-02 13:00:03 -0800390 HWC2::Composition getCompositionType(int32_t hwcId) const;
Dan Stoza9e56aa02015-11-02 13:00:03 -0800391 void setClearClientTarget(int32_t hwcId, bool clear);
392 bool getClearClientTarget(int32_t hwcId) const;
Dan Stoza9e56aa02015-11-02 13:00:03 -0800393 void updateCursorPosition(const sp<const DisplayDevice>& hw);
Riley Andrews03414a12014-07-01 14:22:59 -0700394
Mathias Agopian1eae0ee2013-06-05 16:59:15 -0700395 /*
396 * called after page-flip
397 */
David Sodmaneb085e02017-10-05 18:49:04 -0700398 virtual void onLayerDisplayed(const sp<Fence>& releaseFence);
Mathias Agopian1eae0ee2013-06-05 16:59:15 -0700399
Robert Carr105e64b2018-03-07 12:47:50 -0800400 virtual void abandon() {}
David Sodmaneb085e02017-10-05 18:49:04 -0700401
Robert Carr105e64b2018-03-07 12:47:50 -0800402 virtual bool shouldPresentNow(const DispSync& /*dispSync*/) const { return false; }
403 virtual void setTransformHint(uint32_t /*orientation*/) const { }
Dan Stoza6b9454d2014-11-07 16:00:59 -0800404
Mathias Agopian1eae0ee2013-06-05 16:59:15 -0700405 /*
406 * called before composition.
407 * returns true if the layer has pending updates.
408 */
Robert Carr105e64b2018-03-07 12:47:50 -0800409 virtual bool onPreComposition(nsecs_t /*refreshStartTime*/) { return true; }
Mathias Agopian1eae0ee2013-06-05 16:59:15 -0700410
411 /*
Dan Stozae77c7662016-05-13 11:37:28 -0700412 * called after composition.
413 * returns true if the layer latched a new buffer this frame.
Mathias Agopian1eae0ee2013-06-05 16:59:15 -0700414 */
Robert Carr105e64b2018-03-07 12:47:50 -0800415 virtual bool onPostComposition(const std::shared_ptr<FenceTime>& /*glDoneFence*/,
416 const std::shared_ptr<FenceTime>& /*presentFence*/,
417 const CompositorTiming& /*compositorTiming*/) {
418 return false;
419 }
Mathias Agopian1eae0ee2013-06-05 16:59:15 -0700420
Dan Stoza9e56aa02015-11-02 13:00:03 -0800421 // If a buffer was replaced this frame, release the former buffer
Robert Carr105e64b2018-03-07 12:47:50 -0800422 virtual void releasePendingBuffer(nsecs_t /*dequeueReadyTime*/) { }
423
Dan Stoza9e56aa02015-11-02 13:00:03 -0800424
Mathias Agopian1eae0ee2013-06-05 16:59:15 -0700425 /*
426 * draw - performs some global clipping optimizations
427 * and calls onDraw().
428 */
chaviwa76b2712017-09-20 12:02:26 -0700429 void draw(const RenderArea& renderArea, const Region& clip) const;
430 void draw(const RenderArea& renderArea, bool useIdentityTransform) const;
431 void draw(const RenderArea& renderArea) const;
Mathias Agopian1eae0ee2013-06-05 16:59:15 -0700432
433 /*
434 * doTransaction - process the transaction. This is a good place to figure
435 * out which attributes of the surface have changed.
436 */
437 uint32_t doTransaction(uint32_t transactionFlags);
438
439 /*
440 * setVisibleRegion - called to set the new visible region. This gives
441 * a chance to update the new visible region or record the fact it changed.
442 */
443 void setVisibleRegion(const Region& visibleRegion);
444
445 /*
446 * setCoveredRegion - called when the covered region changes. The covered
447 * region corresponds to any area of the surface that is covered
448 * (transparently or not) by another surface.
449 */
450 void setCoveredRegion(const Region& coveredRegion);
451
452 /*
453 * setVisibleNonTransparentRegion - called when the visible and
454 * non-transparent region changes.
455 */
David Sodman41fdfc92017-11-06 16:09:56 -0800456 void setVisibleNonTransparentRegion(const Region& visibleNonTransparentRegion);
Mathias Agopian1eae0ee2013-06-05 16:59:15 -0700457
458 /*
Robert Carre5f4f692018-01-12 13:12:28 -0800459 * Clear the visible, covered, and non-transparent regions.
460 */
461 void clearVisibilityRegions();
462
463 /*
Mathias Agopian1eae0ee2013-06-05 16:59:15 -0700464 * latchBuffer - called each time the screen is redrawn and returns whether
465 * the visible regions need to be recomputed (this is a fairly heavy
466 * operation, so this should be set only if needed). Typically this is used
467 * to figure out if the content or size of a surface has changed.
468 */
Robert Carr105e64b2018-03-07 12:47:50 -0800469 virtual Region latchBuffer(bool& /*recomputeVisibleRegions*/, nsecs_t /*latchTime*/) {
470 return {};
471 }
472
473 virtual bool isBufferLatched() const { return false; }
Mathias Agopian1eae0ee2013-06-05 16:59:15 -0700474
David Sodman0c69cad2017-08-21 12:12:51 -0700475 bool isPotentialCursor() const { return mPotentialCursor; }
Mathias Agopian13127d82013-03-05 17:47:11 -0800476 /*
Chia-I Wuc6657022017-08-15 11:18:17 -0700477 * called with the state lock from a binder thread when the layer is
478 * removed from the current list to the pending removal list
479 */
480 void onRemovedFromCurrentState();
481
482 /*
483 * called with the state lock from the main thread when the layer is
484 * removed from the pending removal list
Mathias Agopian13127d82013-03-05 17:47:11 -0800485 */
Mathias Agopian1eae0ee2013-06-05 16:59:15 -0700486 void onRemoved();
Mathias Agopian13127d82013-03-05 17:47:11 -0800487
Andy McFaddenbf974ab2012-12-04 16:51:15 -0800488 // Updates the transform hint in our SurfaceFlingerConsumer to match
Mathias Agopian84300952012-11-21 16:02:13 -0800489 // the current orientation of the display device.
Mathias Agopian1eae0ee2013-06-05 16:59:15 -0700490 void updateTransformHint(const sp<const DisplayDevice>& hw) const;
Andy McFadden69052052012-09-14 16:10:11 -0700491
Mathias Agopian13127d82013-03-05 17:47:11 -0800492 /*
493 * returns the rectangle that crops the content of the layer and scales it
494 * to the layer's size.
495 */
Mathias Agopian1eae0ee2013-06-05 16:59:15 -0700496 Rect getContentCrop() const;
Mathias Agopian13127d82013-03-05 17:47:11 -0800497
Eric Penner51c59cd2014-07-28 19:51:58 -0700498 /*
499 * Returns if a frame is queued.
500 */
David Sodman41fdfc92017-11-06 16:09:56 -0800501 bool hasQueuedFrame() const {
502 return mQueuedFrames > 0 || mSidebandStreamChanged || mAutoRefresh;
503 }
Eric Penner51c59cd2014-07-28 19:51:58 -0700504
Kalle Raitaa099a242017-01-11 11:17:29 -0800505 int32_t getQueuedFrameCount() const { return mQueuedFrames; }
506
Dan Stoza9e56aa02015-11-02 13:00:03 -0800507 // -----------------------------------------------------------------------
508
Steven Thomasb02664d2017-07-26 18:48:28 -0700509 bool createHwcLayer(HWComposer* hwc, int32_t hwcId);
Chia-I Wu83806892017-11-16 10:50:20 -0800510 bool destroyHwcLayer(int32_t hwcId);
Steven Thomasb02664d2017-07-26 18:48:28 -0700511 void destroyAllHwcLayers();
512
David Sodman6f65f3e2017-11-03 14:28:09 -0700513 bool hasHwcLayer(int32_t hwcId) {
514 return getBE().mHwcLayers.count(hwcId) > 0;
515 }
Dan Stoza9e56aa02015-11-02 13:00:03 -0800516
Steven Thomasb02664d2017-07-26 18:48:28 -0700517 HWC2::Layer* getHwcLayer(int32_t hwcId) {
David Sodman6f65f3e2017-11-03 14:28:09 -0700518 if (getBE().mHwcLayers.count(hwcId) == 0) {
Dan Stoza9e56aa02015-11-02 13:00:03 -0800519 return nullptr;
520 }
David Sodman6f65f3e2017-11-03 14:28:09 -0700521 return getBE().mHwcLayers[hwcId].layer;
Dan Stoza9e56aa02015-11-02 13:00:03 -0800522 }
523
Mathias Agopian13127d82013-03-05 17:47:11 -0800524 // -----------------------------------------------------------------------
525
chaviwa76b2712017-09-20 12:02:26 -0700526 void clearWithOpenGL(const RenderArea& renderArea) const;
Mathias Agopian13127d82013-03-05 17:47:11 -0800527 void setFiltering(bool filtering);
528 bool getFiltering() const;
529
Mathias Agopian13127d82013-03-05 17:47:11 -0800530
David Sodman41fdfc92017-11-06 16:09:56 -0800531 inline const State& getDrawingState() const { return mDrawingState; }
532 inline const State& getCurrentState() const { return mCurrentState; }
533 inline State& getCurrentState() { return mCurrentState; }
Mathias Agopian13127d82013-03-05 17:47:11 -0800534
Kalle Raitaa099a242017-01-11 11:17:29 -0800535 LayerDebugInfo getLayerDebugInfo() const;
Mathias Agopian13127d82013-03-05 17:47:11 -0800536
537 /* always call base class first */
Dan Stozae22aec72016-08-01 13:20:59 -0700538 static void miniDumpHeader(String8& result);
539 void miniDump(String8& result, int32_t hwcId) const;
Svetoslavd85084b2014-03-20 10:28:31 -0700540 void dumpFrameStats(String8& result) const;
Brian Andersond6927fb2016-07-23 23:37:30 -0700541 void dumpFrameEvents(String8& result);
Svetoslavd85084b2014-03-20 10:28:31 -0700542 void clearFrameStats();
Jamie Gennis6547ff42013-07-16 20:12:42 -0700543 void logFrameStats();
Svetoslavd85084b2014-03-20 10:28:31 -0700544 void getFrameStats(FrameStats* outStats) const;
Mathias Agopian1b5e1022010-04-20 17:55:49 -0700545
Robert Carr105e64b2018-03-07 12:47:50 -0800546 virtual std::vector<OccupancyTracker::Segment> getOccupancyHistory(bool /*forceFlush*/) {
547 return {};
548 }
Dan Stozae77c7662016-05-13 11:37:28 -0700549
Brian Anderson5ea5e592016-12-01 16:54:33 -0800550 void onDisconnect();
Brian Anderson3890c392016-07-25 12:48:08 -0700551 void addAndGetFrameTimestamps(const NewFrameEventsEntry* newEntry,
David Sodman41fdfc92017-11-06 16:09:56 -0800552 FrameEventHistoryDelta* outDelta);
Pablo Ceballosce796e72016-02-04 19:10:51 -0800553
Robert Carr105e64b2018-03-07 12:47:50 -0800554 virtual bool getTransformToDisplayInverse() const { return false; }
Robert Carr367c5682016-06-20 11:55:28 -0700555
Robert Carr1f0a16a2016-10-24 16:27:39 -0700556 Transform getTransform() const;
557
Robert Carr6452f122017-03-21 10:41:29 -0700558 // Returns the Alpha of the Surface, accounting for the Alpha
559 // of parent Surfaces in the hierarchy (alpha's will be multiplied
560 // down the hierarchy).
chaviw13fdc492017-06-27 12:40:18 -0700561 half getAlpha() const;
562 half4 getColor() const;
Robert Carr6452f122017-03-21 10:41:29 -0700563
Dan Stoza412903f2017-04-27 13:42:17 -0700564 void traverseInReverseZOrder(LayerVector::StateSet stateSet,
565 const LayerVector::Visitor& visitor);
566 void traverseInZOrder(LayerVector::StateSet stateSet, const LayerVector::Visitor& visitor);
Robert Carr1f0a16a2016-10-24 16:27:39 -0700567
chaviw4b129c22018-04-09 16:19:43 -0700568 /**
569 * Traverse only children in z order, ignoring relative layers that are not children of the
570 * parent.
571 */
chaviwa76b2712017-09-20 12:02:26 -0700572 void traverseChildrenInZOrder(LayerVector::StateSet stateSet,
573 const LayerVector::Visitor& visitor);
574
Chia-I Wu98f1c102017-05-30 14:54:08 -0700575 size_t getChildrenCount() const;
Robert Carr1f0a16a2016-10-24 16:27:39 -0700576 void addChild(const sp<Layer>& layer);
577 // Returns index if removed, or negative value otherwise
578 // for symmetry with Vector::remove
579 ssize_t removeChild(const sp<Layer>& layer);
Chia-I Wue41dbe62017-06-13 14:10:56 -0700580 sp<Layer> getParent() const { return mCurrentParent.promote(); }
Robert Carr1f0a16a2016-10-24 16:27:39 -0700581 bool hasParent() const { return getParent() != nullptr; }
Robert Carr1f0a16a2016-10-24 16:27:39 -0700582 Rect computeScreenBounds(bool reduceTransparentRegion = true) const;
583 bool setChildLayer(const sp<Layer>& childLayer, int32_t z);
Robert Carr503c7042017-09-27 15:06:08 -0700584 bool setChildRelativeLayer(const sp<Layer>& childLayer,
585 const sp<IBinder>& relativeToHandle, int32_t relativeZ);
Robert Carr1f0a16a2016-10-24 16:27:39 -0700586
587 // Copy the current list of children to the drawing state. Called by
588 // SurfaceFlinger to complete a transaction.
589 void commitChildList();
Robert Carr1f0a16a2016-10-24 16:27:39 -0700590 int32_t getZ() const;
David Sodman41fdfc92017-11-06 16:09:56 -0800591
Mathias Agopian13127d82013-03-05 17:47:11 -0800592protected:
593 // constant
594 sp<SurfaceFlinger> mFlinger;
Mathias Agopian13127d82013-03-05 17:47:11 -0800595 /*
596 * Trivial class, used to ensure that mFlinger->onLayerDestroyed(mLayer)
597 * is called.
598 */
599 class LayerCleaner {
600 sp<SurfaceFlinger> mFlinger;
601 wp<Layer> mLayer;
David Sodman41fdfc92017-11-06 16:09:56 -0800602
Mathias Agopian13127d82013-03-05 17:47:11 -0800603 protected:
Irvel468051e2016-06-13 16:44:44 -0700604 ~LayerCleaner() {
605 // destroy client resources
606 mFlinger->onLayerDestroyed(mLayer);
607 }
David Sodman41fdfc92017-11-06 16:09:56 -0800608
Mathias Agopian13127d82013-03-05 17:47:11 -0800609 public:
David Sodman41fdfc92017-11-06 16:09:56 -0800610 LayerCleaner(const sp<SurfaceFlinger>& flinger, const sp<Layer>& layer)
611 : mFlinger(flinger), mLayer(layer) {}
Mathias Agopian13127d82013-03-05 17:47:11 -0800612 };
613
Irvel468051e2016-06-13 16:44:44 -0700614 virtual void onFirstRef();
615
Lloyd Pique4d234852018-01-22 17:21:36 -0800616 friend class impl::SurfaceInterceptor;
David Sodmaneb085e02017-10-05 18:49:04 -0700617
Pablo Ceballos05289c22016-04-14 15:49:55 -0700618 void commitTransaction(const State& stateToCommit);
Mathias Agopian1eae0ee2013-06-05 16:59:15 -0700619
Mathias Agopian3330b202009-10-05 17:07:12 -0700620 uint32_t getEffectiveUsage(uint32_t usage) const;
Robert Carr1f0a16a2016-10-24 16:27:39 -0700621
Dan Stoza5a423ea2017-02-16 14:10:39 -0800622 FloatRect computeCrop(const sp<const DisplayDevice>& hw) const;
David Sodman0c69cad2017-08-21 12:12:51 -0700623 // Compute the initial crop as specified by parent layers and the
624 // SurfaceControl for this layer. Does not include buffer crop from the
625 // IGraphicBufferProducer client, as that should not affect child clipping.
626 // Returns in screen space.
Robert Carr1f0a16a2016-10-24 16:27:39 -0700627 Rect computeInitialCrop(const sp<const DisplayDevice>& hw) const;
Mathias Agopian0aa758d2009-04-22 15:23:34 -0700628
Mathias Agopian13127d82013-03-05 17:47:11 -0800629 // drawing
David Sodman41fdfc92017-11-06 16:09:56 -0800630 void clearWithOpenGL(const RenderArea& renderArea, float r, float g, float b,
631 float alpha) const;
Dan Stozac5da2712016-07-20 15:38:12 -0700632
Robert Carr1f0a16a2016-10-24 16:27:39 -0700633 void setParent(const sp<Layer>& layer);
634
Robert Carr29abff82017-12-04 13:51:20 -0800635 LayerVector makeTraversalList(LayerVector::StateSet stateSet, bool* outSkipRelativeZUsers);
Robert Carrdb66e622017-04-10 16:55:57 -0700636 void addZOrderRelative(const wp<Layer>& relative);
637 void removeZOrderRelative(const wp<Layer>& relative);
638
David Sodman41fdfc92017-11-06 16:09:56 -0800639 class SyncPoint {
Dan Stoza7dde5992015-05-22 09:51:44 -0700640 public:
David Sodman41fdfc92017-11-06 16:09:56 -0800641 explicit SyncPoint(uint64_t frameNumber)
642 : mFrameNumber(frameNumber), mFrameIsAvailable(false), mTransactionIsApplied(false) {}
Dan Stoza7dde5992015-05-22 09:51:44 -0700643
David Sodman41fdfc92017-11-06 16:09:56 -0800644 uint64_t getFrameNumber() const { return mFrameNumber; }
Dan Stoza7dde5992015-05-22 09:51:44 -0700645
David Sodman41fdfc92017-11-06 16:09:56 -0800646 bool frameIsAvailable() const { return mFrameIsAvailable; }
Dan Stoza7dde5992015-05-22 09:51:44 -0700647
David Sodman41fdfc92017-11-06 16:09:56 -0800648 void setFrameAvailable() { mFrameIsAvailable = true; }
Dan Stoza7dde5992015-05-22 09:51:44 -0700649
David Sodman41fdfc92017-11-06 16:09:56 -0800650 bool transactionIsApplied() const { return mTransactionIsApplied; }
Dan Stoza7dde5992015-05-22 09:51:44 -0700651
David Sodman41fdfc92017-11-06 16:09:56 -0800652 void setTransactionApplied() { mTransactionIsApplied = true; }
Dan Stoza7dde5992015-05-22 09:51:44 -0700653
654 private:
655 const uint64_t mFrameNumber;
656 std::atomic<bool> mFrameIsAvailable;
657 std::atomic<bool> mTransactionIsApplied;
658 };
659
Dan Stozacac35382016-01-27 12:21:06 -0800660 // SyncPoints which will be signaled when the correct frame is at the head
661 // of the queue and dropped after the frame has been latched. Protected by
662 // mLocalSyncPointMutex.
663 Mutex mLocalSyncPointMutex;
Dan Stoza7dde5992015-05-22 09:51:44 -0700664 std::list<std::shared_ptr<SyncPoint>> mLocalSyncPoints;
665
Dan Stozacac35382016-01-27 12:21:06 -0800666 // SyncPoints which will be signaled and then dropped when the transaction
667 // is applied
Dan Stoza7dde5992015-05-22 09:51:44 -0700668 std::list<std::shared_ptr<SyncPoint>> mRemoteSyncPoints;
669
Dan Stozacac35382016-01-27 12:21:06 -0800670 // Returns false if the relevant frame has already been latched
671 bool addSyncPoint(const std::shared_ptr<SyncPoint>& point);
Dan Stoza7dde5992015-05-22 09:51:44 -0700672
673 void pushPendingState();
Pablo Ceballos05289c22016-04-14 15:49:55 -0700674 void popPendingState(State* stateToCommit);
675 bool applyPendingStates(State* stateToCommit);
Robert Carrc3574f72016-03-24 12:19:32 -0700676
Robert Carr1f0a16a2016-10-24 16:27:39 -0700677 void clearSyncPoints();
678
Robert Carrc3574f72016-03-24 12:19:32 -0700679 // Returns mCurrentScaling mode (originating from the
680 // Client) or mOverrideScalingMode mode (originating from
681 // the Surface Controller) if set.
Robert Carr105e64b2018-03-07 12:47:50 -0800682 virtual uint32_t getEffectiveScalingMode() const { return 0; }
David Sodman41fdfc92017-11-06 16:09:56 -0800683
Dan Stoza7dde5992015-05-22 09:51:44 -0700684public:
Irvel468051e2016-06-13 16:44:44 -0700685 /*
686 * The layer handle is just a BBinder object passed to the client
687 * (remote process) -- we don't keep any reference on our side such that
688 * the dtor is called when the remote side let go of its reference.
689 *
690 * LayerCleaner ensures that mFlinger->onLayerDestroyed() is called for
691 * this layer when the handle is destroyed.
692 */
693 class Handle : public BBinder, public LayerCleaner {
David Sodman41fdfc92017-11-06 16:09:56 -0800694 public:
695 Handle(const sp<SurfaceFlinger>& flinger, const sp<Layer>& layer)
696 : LayerCleaner(flinger, layer), owner(layer) {}
Irvel468051e2016-06-13 16:44:44 -0700697
David Sodman41fdfc92017-11-06 16:09:56 -0800698 wp<Layer> owner;
Irvel468051e2016-06-13 16:44:44 -0700699 };
700
701 sp<IBinder> getHandle();
Irvel468051e2016-06-13 16:44:44 -0700702 const String8& getName() const;
Robert Carr105e64b2018-03-07 12:47:50 -0800703 virtual void notifyAvailableFrames() {}
704 virtual PixelFormat getPixelFormat() const { return PIXEL_FORMAT_NONE; }
chaviw13fdc492017-06-27 12:40:18 -0700705 bool getPremultipledAlpha() const;
Igor Murashkina4a31492012-10-29 13:36:11 -0700706
David Sodman41fdfc92017-11-06 16:09:56 -0800707protected:
Mathias Agopianb7e930d2010-06-01 15:12:58 -0700708 // -----------------------------------------------------------------------
Robert Carr29abff82017-12-04 13:51:20 -0800709 bool usingRelativeZ(LayerVector::StateSet stateSet);
Mathias Agopianb7e930d2010-06-01 15:12:58 -0700710
Mathias Agopian13127d82013-03-05 17:47:11 -0800711 bool mPremultipliedAlpha;
712 String8 mName;
David Sodman41fdfc92017-11-06 16:09:56 -0800713 String8 mTransactionName; // A cached version of "TX - " + mName for systraces
Mathias Agopian13127d82013-03-05 17:47:11 -0800714
Chia-I Wuab0c3192017-08-01 11:29:00 -0700715 bool mPrimaryDisplayOnly = false;
716
Mathias Agopian13127d82013-03-05 17:47:11 -0800717 // these are protected by an external lock
718 State mCurrentState;
719 State mDrawingState;
720 volatile int32_t mTransactionFlags;
Mathias Agopiand606de62010-05-10 20:06:11 -0700721
Dan Stoza7dde5992015-05-22 09:51:44 -0700722 // Accessed from main thread and binder threads
723 Mutex mPendingStateMutex;
724 Vector<State> mPendingStates;
725
Mathias Agopianb7e930d2010-06-01 15:12:58 -0700726 // thread-safe
Mathias Agopiana67932f2011-04-20 14:20:59 -0700727 volatile int32_t mQueuedFrames;
David Sodman41fdfc92017-11-06 16:09:56 -0800728 volatile int32_t mSidebandStreamChanged; // used like an atomic boolean
Brian Andersond6927fb2016-07-23 23:37:30 -0700729
730 // Timestamp history for UIAutomation. Thread safe.
Jamie Gennis4b0eba92013-02-05 13:30:24 -0800731 FrameTracker mFrameTracker;
Mathias Agopiana67932f2011-04-20 14:20:59 -0700732
Brian Andersond6927fb2016-07-23 23:37:30 -0700733 // Timestamp history for the consumer to query.
734 // Accessed by both consumer and producer on main and binder threads.
735 Mutex mFrameEventHistoryMutex;
Brian Anderson3890c392016-07-25 12:48:08 -0700736 ConsumerFrameEventHistory mFrameEventHistory;
Brian Anderson3d4039d2016-09-23 16:31:30 -0700737 FenceTimeline mAcquireTimeline;
738 FenceTimeline mReleaseTimeline;
Brian Andersond6927fb2016-07-23 23:37:30 -0700739
Mathias Agopiana67932f2011-04-20 14:20:59 -0700740 // main thread
Mathias Agopiana9347642017-02-13 16:42:28 -0800741 int mActiveBufferSlot;
Mathias Agopiana67932f2011-04-20 14:20:59 -0700742 sp<GraphicBuffer> mActiveBuffer;
Jesse Hall399184a2014-03-03 15:42:54 -0800743 sp<NativeHandle> mSidebandStream;
Mathias Agopiana67932f2011-04-20 14:20:59 -0700744 Rect mCurrentCrop;
745 uint32_t mCurrentTransform;
Robert Carrc3574f72016-03-24 12:19:32 -0700746 // We encode unset as -1.
747 int32_t mOverrideScalingMode;
Mathias Agopiana67932f2011-04-20 14:20:59 -0700748 bool mCurrentOpacity;
Dan Stozacac35382016-01-27 12:21:06 -0800749 std::atomic<uint64_t> mCurrentFrameNumber;
Jamie Gennise8696a42012-01-15 18:54:57 -0800750 bool mFrameLatencyNeeded;
Mathias Agopian13127d82013-03-05 17:47:11 -0800751 // Whether filtering is forced on or not
752 bool mFiltering;
753 // Whether filtering is needed b/c of the drawingstate
754 bool mNeedsFiltering;
David Sodman0c69cad2017-08-21 12:12:51 -0700755
chaviw8b3871a2017-11-01 17:41:01 -0700756 bool mPendingRemoval = false;
757
Mathias Agopianb7e930d2010-06-01 15:12:58 -0700758 // page-flip thread (currently main thread)
Glenn Kasten16f04532011-01-19 15:27:27 -0800759 bool mProtectedByApp; // application requires protected path to external sink
Mathias Agopian13127d82013-03-05 17:47:11 -0800760
761 // protected by mLock
762 mutable Mutex mLock;
David Sodman0c69cad2017-08-21 12:12:51 -0700763
Mathias Agopian13127d82013-03-05 17:47:11 -0800764 const wp<Client> mClientRef;
Riley Andrews03414a12014-07-01 14:22:59 -0700765
766 // This layer can be a cursor on some displays.
767 bool mPotentialCursor;
Dan Stoza6b9454d2014-11-07 16:00:59 -0800768
769 // Local copy of the queued contents of the incoming BufferQueue
770 mutable Mutex mQueueItemLock;
Dan Stozaa4650a52015-05-12 12:56:16 -0700771 Condition mQueueItemCondition;
Dan Stoza6b9454d2014-11-07 16:00:59 -0800772 Vector<BufferItem> mQueueItems;
Dan Stozacac35382016-01-27 12:21:06 -0800773 std::atomic<uint64_t> mLastFrameNumberReceived;
Pablo Ceballosff95aab2016-01-13 17:09:58 -0800774 bool mAutoRefresh;
Robert Carr7bf247e2017-05-18 14:02:49 -0700775 bool mFreezeGeometryUpdates;
Robert Carr1f0a16a2016-10-24 16:27:39 -0700776
777 // Child list about to be committed/used for editing.
778 LayerVector mCurrentChildren;
779 // Child list used for rendering.
780 LayerVector mDrawingChildren;
781
Chia-I Wue41dbe62017-06-13 14:10:56 -0700782 wp<Layer> mCurrentParent;
783 wp<Layer> mDrawingParent;
David Sodman9eeae692017-11-02 10:53:32 -0700784
785 mutable LayerBE mBE;
chaviw4b129c22018-04-09 16:19:43 -0700786
787private:
788 /**
789 * Returns an unsorted vector of all layers that are part of this tree.
790 * That includes the current layer and all its descendants.
791 */
792 std::vector<Layer*> getLayersInTree(LayerVector::StateSet stateSet);
793 /**
794 * Traverses layers that are part of this tree in the correct z order.
795 * layersInTree must be sorted before calling this method.
796 */
797 void traverseChildrenInZOrderInner(const std::vector<Layer*>& layersInTree,
798 LayerVector::StateSet stateSet,
799 const LayerVector::Visitor& visitor);
800 LayerVector makeChildrenTraversalList(LayerVector::StateSet stateSet,
801 const std::vector<Layer*>& layersInTree);
The Android Open Source Projectedbf3b62009-03-03 19:31:44 -0800802};
803
804// ---------------------------------------------------------------------------
805
806}; // namespace android
807
808#endif // ANDROID_LAYER_H