Java程序
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2691行
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91.72 KB
/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.view;
import static android.graphics.Matrix.MSCALE_X;
import static android.graphics.Matrix.MSCALE_Y;
import static android.graphics.Matrix.MSKEW_X;
import static android.graphics.Matrix.MSKEW_Y;
import static android.graphics.Matrix.MTRANS_X;
import static android.graphics.Matrix.MTRANS_Y;
import static android.view.Surface.ROTATION_270;
import static android.view.Surface.ROTATION_90;
import static android.view.SurfaceControlProto.HASH_CODE;
import static android.view.SurfaceControlProto.NAME;
import android.annotation.FloatRange;
import android.annotation.IntRange;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.annotation.Size;
import android.annotation.UnsupportedAppUsage;
import android.graphics.Bitmap;
import android.graphics.ColorSpace;
import android.graphics.GraphicBuffer;
import android.graphics.Matrix;
import android.graphics.PixelFormat;
import android.graphics.Point;
import android.graphics.Rect;
import android.graphics.Region;
import android.hardware.display.DisplayedContentSample;
import android.hardware.display.DisplayedContentSamplingAttributes;
import android.os.Build;
import android.os.IBinder;
import android.os.Parcel;
import android.os.Parcelable;
import android.util.ArrayMap;
import android.util.Log;
import android.util.SparseIntArray;
import android.util.proto.ProtoOutputStream;
import android.view.Surface.OutOfResourcesException;
import com.android.internal.annotations.GuardedBy;
import dalvik.system.CloseGuard;
import libcore.util.NativeAllocationRegistry;
import java.io.Closeable;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.util.Objects;
/**
* Handle to an on-screen Surface managed by the system compositor. The SurfaceControl is
* a combination of a buffer source, and metadata about how to display the buffers.
* By constructing a {@link Surface} from this SurfaceControl you can submit buffers to be
* composited. Using {@link SurfaceControl.Transaction} you can manipulate various
* properties of how the buffer will be displayed on-screen. SurfaceControl's are
* arranged into a scene-graph like hierarchy, and as such any SurfaceControl may have
* a parent. Geometric properties like transform, crop, and Z-ordering will be inherited
* from the parent, as if the child were content in the parents buffer stream.
*/
public final class SurfaceControl implements Parcelable {
private static final String TAG = "SurfaceControl";
private static native long nativeCreate(SurfaceSession session, String name,
int w, int h, int format, int flags, long parentObject, Parcel metadata)
throws OutOfResourcesException;
private static native long nativeReadFromParcel(Parcel in);
private static native long nativeCopyFromSurfaceControl(long nativeObject);
private static native void nativeWriteToParcel(long nativeObject, Parcel out);
private static native void nativeRelease(long nativeObject);
private static native void nativeDestroy(long nativeObject);
private static native void nativeDisconnect(long nativeObject);
private static native ScreenshotGraphicBuffer nativeScreenshot(IBinder displayToken,
Rect sourceCrop, int width, int height, boolean useIdentityTransform, int rotation,
boolean captureSecureLayers);
private static native ScreenshotGraphicBuffer nativeCaptureLayers(IBinder displayToken,
IBinder layerHandleToken, Rect sourceCrop, float frameScale, IBinder[] excludeLayers);
private static native long nativeCreateTransaction();
private static native long nativeGetNativeTransactionFinalizer();
private static native void nativeApplyTransaction(long transactionObj, boolean sync);
private static native void nativeMergeTransaction(long transactionObj,
long otherTransactionObj);
private static native void nativeSetAnimationTransaction(long transactionObj);
private static native void nativeSetEarlyWakeup(long transactionObj);
private static native void nativeSetLayer(long transactionObj, long nativeObject, int zorder);
private static native void nativeSetRelativeLayer(long transactionObj, long nativeObject,
IBinder relativeTo, int zorder);
private static native void nativeSetPosition(long transactionObj, long nativeObject,
float x, float y);
private static native void nativeSetGeometryAppliesWithResize(long transactionObj,
long nativeObject);
private static native void nativeSetSize(long transactionObj, long nativeObject, int w, int h);
private static native void nativeSetTransparentRegionHint(long transactionObj,
long nativeObject, Region region);
private static native void nativeSetAlpha(long transactionObj, long nativeObject, float alpha);
private static native void nativeSetMatrix(long transactionObj, long nativeObject,
float dsdx, float dtdx,
float dtdy, float dsdy);
private static native void nativeSetColorTransform(long transactionObj, long nativeObject,
float[] matrix, float[] translation);
private static native void nativeSetColorSpaceAgnostic(long transactionObj, long nativeObject,
boolean agnostic);
private static native void nativeSetGeometry(long transactionObj, long nativeObject,
Rect sourceCrop, Rect dest, long orientation);
private static native void nativeSetColor(long transactionObj, long nativeObject, float[] color);
private static native void nativeSetFlags(long transactionObj, long nativeObject,
int flags, int mask);
private static native void nativeSetWindowCrop(long transactionObj, long nativeObject,
int l, int t, int r, int b);
private static native void nativeSetCornerRadius(long transactionObj, long nativeObject,
float cornerRadius);
private static native void nativeSetLayerStack(long transactionObj, long nativeObject,
int layerStack);
private static native boolean nativeClearContentFrameStats(long nativeObject);
private static native boolean nativeGetContentFrameStats(long nativeObject, WindowContentFrameStats outStats);
private static native boolean nativeClearAnimationFrameStats();
private static native boolean nativeGetAnimationFrameStats(WindowAnimationFrameStats outStats);
private static native long[] nativeGetPhysicalDisplayIds();
private static native IBinder nativeGetPhysicalDisplayToken(long physicalDisplayId);
private static native IBinder nativeCreateDisplay(String name, boolean secure);
private static native void nativeDestroyDisplay(IBinder displayToken);
private static native void nativeSetDisplaySurface(long transactionObj,
IBinder displayToken, long nativeSurfaceObject);
private static native void nativeSetDisplayLayerStack(long transactionObj,
IBinder displayToken, int layerStack);
private static native void nativeSetDisplayProjection(long transactionObj,
IBinder displayToken, int orientation,
int l, int t, int r, int b,
int L, int T, int R, int B);
private static native void nativeSetDisplaySize(long transactionObj, IBinder displayToken,
int width, int height);
private static native SurfaceControl.PhysicalDisplayInfo[] nativeGetDisplayConfigs(
IBinder displayToken);
private static native DisplayedContentSamplingAttributes
nativeGetDisplayedContentSamplingAttributes(IBinder displayToken);
private static native boolean nativeSetDisplayedContentSamplingEnabled(IBinder displayToken,
boolean enable, int componentMask, int maxFrames);
private static native DisplayedContentSample nativeGetDisplayedContentSample(
IBinder displayToken, long numFrames, long timestamp);
private static native int nativeGetActiveConfig(IBinder displayToken);
private static native boolean nativeSetActiveConfig(IBinder displayToken, int id);
private static native boolean nativeSetAllowedDisplayConfigs(IBinder displayToken,
int[] allowedConfigs);
private static native int[] nativeGetAllowedDisplayConfigs(IBinder displayToken);
private static native int[] nativeGetDisplayColorModes(IBinder displayToken);
private static native SurfaceControl.DisplayPrimaries nativeGetDisplayNativePrimaries(
IBinder displayToken);
private static native int[] nativeGetCompositionDataspaces();
private static native int nativeGetActiveColorMode(IBinder displayToken);
private static native boolean nativeSetActiveColorMode(IBinder displayToken,
int colorMode);
private static native void nativeSetDisplayPowerMode(
IBinder displayToken, int mode);
private static native void nativeDeferTransactionUntil(long transactionObj, long nativeObject,
IBinder handle, long frame);
private static native void nativeDeferTransactionUntilSurface(long transactionObj,
long nativeObject,
long surfaceObject, long frame);
private static native void nativeReparentChildren(long transactionObj, long nativeObject,
IBinder handle);
private static native void nativeReparent(long transactionObj, long nativeObject,
long newParentNativeObject);
private static native void nativeSeverChildren(long transactionObj, long nativeObject);
private static native void nativeSetOverrideScalingMode(long transactionObj, long nativeObject,
int scalingMode);
private static native IBinder nativeGetHandle(long nativeObject);
private static native boolean nativeGetTransformToDisplayInverse(long nativeObject);
private static native Display.HdrCapabilities nativeGetHdrCapabilities(IBinder displayToken);
private static native void nativeSetInputWindowInfo(long transactionObj, long nativeObject,
InputWindowHandle handle);
private static native void nativeTransferTouchFocus(long transactionObj, IBinder fromToken,
IBinder toToken);
private static native boolean nativeGetProtectedContentSupport();
private static native void nativeSetMetadata(long transactionObj, long nativeObject, int key,
Parcel data);
private static native void nativeSyncInputWindows(long transactionObj);
private static native boolean nativeGetDisplayBrightnessSupport(IBinder displayToken);
private static native boolean nativeSetDisplayBrightness(IBinder displayToken,
float brightness);
private final CloseGuard mCloseGuard = CloseGuard.get();
private String mName;
long mNativeObject; // package visibility only for Surface.java access
// TODO: Move this to native.
private final Object mSizeLock = new Object();
@GuardedBy("mSizeLock")
private int mWidth;
@GuardedBy("mSizeLock")
private int mHeight;
static Transaction sGlobalTransaction;
static long sTransactionNestCount = 0;
/* flags used in constructor (keep in sync with ISurfaceComposerClient.h) */
/**
* Surface creation flag: Surface is created hidden
* @hide
*/
@UnsupportedAppUsage
public static final int HIDDEN = 0x00000004;
/**
* Surface creation flag: The surface contains secure content, special
* measures will be taken to disallow the surface's content to be copied
* from another process. In particular, screenshots and VNC servers will
* be disabled, but other measures can take place, for instance the
* surface might not be hardware accelerated.
* @hide
*/
public static final int SECURE = 0x00000080;
/**
* Surface creation flag: Creates a surface where color components are interpreted
* as "non pre-multiplied" by their alpha channel. Of course this flag is
* meaningless for surfaces without an alpha channel. By default
* surfaces are pre-multiplied, which means that each color component is
* already multiplied by its alpha value. In this case the blending
* equation used is:
* <p>
* <code>DEST = SRC + DEST * (1-SRC_ALPHA)</code>
* <p>
* By contrast, non pre-multiplied surfaces use the following equation:
* <p>
* <code>DEST = SRC * SRC_ALPHA * DEST * (1-SRC_ALPHA)</code>
* <p>
* pre-multiplied surfaces must always be used if transparent pixels are
* composited on top of each-other into the surface. A pre-multiplied
* surface can never lower the value of the alpha component of a given
* pixel.
* <p>
* In some rare situations, a non pre-multiplied surface is preferable.
* @hide
*/
public static final int NON_PREMULTIPLIED = 0x00000100;
/**
* Surface creation flag: Indicates that the surface must be considered opaque,
* even if its pixel format contains an alpha channel. This can be useful if an
* application needs full RGBA 8888 support for instance but will
* still draw every pixel opaque.
* <p>
* This flag is ignored if setAlpha() is used to make the surface non-opaque.
* Combined effects are (assuming a buffer format with an alpha channel):
* <ul>
* <li>OPAQUE + alpha(1.0) == opaque composition
* <li>OPAQUE + alpha(0.x) == blended composition
* <li>!OPAQUE + alpha(1.0) == blended composition
* <li>!OPAQUE + alpha(0.x) == blended composition
* </ul>
* If the underlying buffer lacks an alpha channel, the OPAQUE flag is effectively
* set automatically.
* @hide
*/
public static final int OPAQUE = 0x00000400;
/**
* Surface creation flag: Application requires a hardware-protected path to an
* external display sink. If a hardware-protected path is not available,
* then this surface will not be displayed on the external sink.
*
* @hide
*/
public static final int PROTECTED_APP = 0x00000800;
// 0x1000 is reserved for an independent DRM protected flag in framework
/**
* Surface creation flag: Window represents a cursor glyph.
* @hide
*/
public static final int CURSOR_WINDOW = 0x00002000;
/**
* Surface creation flag: Creates a normal surface.
* This is the default.
*
* @hide
*/
public static final int FX_SURFACE_NORMAL = 0x00000000;
/**
* Surface creation flag: Creates a Dim surface.
* Everything behind this surface is dimmed by the amount specified
* in {@link #setAlpha}. It is an error to lock a Dim surface, since it
* doesn't have a backing store.
*
* @hide
*/
public static final int FX_SURFACE_DIM = 0x00020000;
/**
* Surface creation flag: Creates a container surface.
* This surface will have no buffers and will only be used
* as a container for other surfaces, or for its InputInfo.
* @hide
*/
public static final int FX_SURFACE_CONTAINER = 0x00080000;
/**
* Mask used for FX values above.
*
* @hide
*/
public static final int FX_SURFACE_MASK = 0x000F0000;
/* flags used with setFlags() (keep in sync with ISurfaceComposer.h) */
/**
* Surface flag: Hide the surface.
* Equivalent to calling hide().
* Updates the value set during Surface creation (see {@link #HIDDEN}).
*/
private static final int SURFACE_HIDDEN = 0x01;
/**
* Surface flag: composite without blending when possible.
* Updates the value set during Surface creation (see {@link #OPAQUE}).
*/
private static final int SURFACE_OPAQUE = 0x02;
// Display power modes.
/**
* Display power mode off: used while blanking the screen.
* Use only with {@link SurfaceControl#setDisplayPowerMode}.
* @hide
*/
public static final int POWER_MODE_OFF = 0;
/**
* Display power mode doze: used while putting the screen into low power mode.
* Use only with {@link SurfaceControl#setDisplayPowerMode}.
* @hide
*/
public static final int POWER_MODE_DOZE = 1;
/**
* Display power mode normal: used while unblanking the screen.
* Use only with {@link SurfaceControl#setDisplayPowerMode}.
* @hide
*/
public static final int POWER_MODE_NORMAL = 2;
/**
* Display power mode doze: used while putting the screen into a suspended
* low power mode. Use only with {@link SurfaceControl#setDisplayPowerMode}.
* @hide
*/
public static final int POWER_MODE_DOZE_SUSPEND = 3;
/**
* Display power mode on: used while putting the screen into a suspended
* full power mode. Use only with {@link SurfaceControl#setDisplayPowerMode}.
* @hide
*/
public static final int POWER_MODE_ON_SUSPEND = 4;
/**
* A value for windowType used to indicate that the window should be omitted from screenshots
* and display mirroring. A temporary workaround until we express such things with
* the hierarchy.
* TODO: b/64227542
* @hide
*/
public static final int WINDOW_TYPE_DONT_SCREENSHOT = 441731;
/**
* internal representation of how to interpret pixel value, used only to convert to ColorSpace.
*/
private static final int INTERNAL_DATASPACE_SRGB = 142671872;
private static final int INTERNAL_DATASPACE_DISPLAY_P3 = 143261696;
private static final int INTERNAL_DATASPACE_SCRGB = 411107328;
private void assignNativeObject(long nativeObject) {
if (mNativeObject != 0) {
release();
}
mNativeObject = nativeObject;
}
/**
* @hide
*/
public void copyFrom(SurfaceControl other) {
mName = other.mName;
mWidth = other.mWidth;
mHeight = other.mHeight;
assignNativeObject(nativeCopyFromSurfaceControl(other.mNativeObject));
}
/**
* owner UID.
* @hide
*/
public static final int METADATA_OWNER_UID = 1;
/**
* Window type as per {@link WindowManager.LayoutParams}.
* @hide
*/
public static final int METADATA_WINDOW_TYPE = 2;
/**
* Task id to allow association between surfaces and task.
* @hide
*/
public static final int METADATA_TASK_ID = 3;
/**
* A wrapper around GraphicBuffer that contains extra information about how to
* interpret the screenshot GraphicBuffer.
* @hide
*/
public static class ScreenshotGraphicBuffer {
private final GraphicBuffer mGraphicBuffer;
private final ColorSpace mColorSpace;
private final boolean mContainsSecureLayers;
public ScreenshotGraphicBuffer(GraphicBuffer graphicBuffer, ColorSpace colorSpace,
boolean containsSecureLayers) {
mGraphicBuffer = graphicBuffer;
mColorSpace = colorSpace;
mContainsSecureLayers = containsSecureLayers;
}
/**
* Create ScreenshotGraphicBuffer from existing native GraphicBuffer object.
* @param width The width in pixels of the buffer
* @param height The height in pixels of the buffer
* @param format The format of each pixel as specified in {@link PixelFormat}
* @param usage Hint indicating how the buffer will be used
* @param unwrappedNativeObject The native object of GraphicBuffer
* @param namedColorSpace Integer value of a named color space {@link ColorSpace.Named}
* @param containsSecureLayer Indicates whether this graphic buffer contains captured contents
* of secure layers, in which case the screenshot should not be persisted.
*/
private static ScreenshotGraphicBuffer createFromNative(int width, int height, int format,
int usage, long unwrappedNativeObject, int namedColorSpace,
boolean containsSecureLayers) {
GraphicBuffer graphicBuffer = GraphicBuffer.createFromExisting(width, height, format,
usage, unwrappedNativeObject);
ColorSpace colorSpace = ColorSpace.get(ColorSpace.Named.values()[namedColorSpace]);
return new ScreenshotGraphicBuffer(graphicBuffer, colorSpace, containsSecureLayers);
}
public ColorSpace getColorSpace() {
return mColorSpace;
}
public GraphicBuffer getGraphicBuffer() {
return mGraphicBuffer;
}
public boolean containsSecureLayers() {
return mContainsSecureLayers;
}
}
/**
* Builder class for {@link SurfaceControl} objects.
*
* By default the surface will be hidden, and have "unset" bounds, meaning it can
* be as large as the bounds of its parent if a buffer or child so requires.
*
* It is necessary to set at least a name via {@link Builder#setName}
*/
public static class Builder {
private SurfaceSession mSession;
private int mFlags = HIDDEN;
private int mWidth;
private int mHeight;
private int mFormat = PixelFormat.OPAQUE;
private String mName;
private SurfaceControl mParent;
private SparseIntArray mMetadata;
/**
* Begin building a SurfaceControl with a given {@link SurfaceSession}.
*
* @param session The {@link SurfaceSession} with which to eventually construct the surface.
* @hide
*/
public Builder(SurfaceSession session) {
mSession = session;
}
/**
* Begin building a SurfaceControl.
*/
public Builder() {
}
/**
* Construct a new {@link SurfaceControl} with the set parameters. The builder
* remains valid.
*/
@NonNull
public SurfaceControl build() {
if (mWidth < 0 || mHeight < 0) {
throw new IllegalStateException(
"width and height must be positive or unset");
}
if ((mWidth > 0 || mHeight > 0) && (isColorLayerSet() || isContainerLayerSet())) {
throw new IllegalStateException(
"Only buffer layers can set a valid buffer size.");
}
return new SurfaceControl(
mSession, mName, mWidth, mHeight, mFormat, mFlags, mParent, mMetadata);
}
/**
* Set a debugging-name for the SurfaceControl.
*
* @param name A name to identify the Surface in debugging.
*/
@NonNull
public Builder setName(@NonNull String name) {
mName = name;
return this;
}
/**
* Set the initial size of the controlled surface's buffers in pixels.
*
* @param width The buffer width in pixels.
* @param height The buffer height in pixels.
*/
@NonNull
public Builder setBufferSize(@IntRange(from = 0) int width,
@IntRange(from = 0) int height) {
if (width < 0 || height < 0) {
throw new IllegalArgumentException(
"width and height must be positive");
}
mWidth = width;
mHeight = height;
// set this as a buffer layer since we are specifying a buffer size.
return setFlags(FX_SURFACE_NORMAL, FX_SURFACE_MASK);
}
/**
* Set the initial size of the controlled surface's buffers in pixels.
*/
private void unsetBufferSize() {
mWidth = 0;
mHeight = 0;
}
/**
* Set the pixel format of the controlled surface's buffers, using constants from
* {@link android.graphics.PixelFormat}.
*/
@NonNull
public Builder setFormat(@PixelFormat.Format int format) {
mFormat = format;
return this;
}
/**
* Specify if the app requires a hardware-protected path to
* an external display sync. If protected content is enabled, but
* such a path is not available, then the controlled Surface will
* not be displayed.
*
* @param protectedContent Whether to require a protected sink.
* @hide
*/
@NonNull
public Builder setProtected(boolean protectedContent) {
if (protectedContent) {
mFlags |= PROTECTED_APP;
} else {
mFlags &= ~PROTECTED_APP;
}
return this;
}
/**
* Specify whether the Surface contains secure content. If true, the system
* will prevent the surfaces content from being copied by another process. In
* particular screenshots and VNC servers will be disabled. This is however
* not a complete prevention of readback as {@link #setProtected}.
* @hide
*/
@NonNull
public Builder setSecure(boolean secure) {
if (secure) {
mFlags |= SECURE;
} else {
mFlags &= ~SECURE;
}
return this;
}
/**
* Indicates whether the surface must be considered opaque,
* even if its pixel format is set to translucent. This can be useful if an
* application needs full RGBA 8888 support for instance but will
* still draw every pixel opaque.
* <p>
* This flag only determines whether opacity will be sampled from the alpha channel.
* Plane-alpha from calls to setAlpha() can still result in blended composition
* regardless of the opaque setting.
*
* Combined effects are (assuming a buffer format with an alpha channel):
* <ul>
* <li>OPAQUE + alpha(1.0) == opaque composition
* <li>OPAQUE + alpha(0.x) == blended composition
* <li>OPAQUE + alpha(0.0) == no composition
* <li>!OPAQUE + alpha(1.0) == blended composition
* <li>!OPAQUE + alpha(0.x) == blended composition
* <li>!OPAQUE + alpha(0.0) == no composition
* </ul>
* If the underlying buffer lacks an alpha channel, it is as if setOpaque(true)
* were set automatically.
* @param opaque Whether the Surface is OPAQUE.
*/
@NonNull
public Builder setOpaque(boolean opaque) {
if (opaque) {
mFlags |= OPAQUE;
} else {
mFlags &= ~OPAQUE;
}
return this;
}
/**
* Set a parent surface for our new SurfaceControl.
*
* Child surfaces are constrained to the onscreen region of their parent.
* Furthermore they stack relatively in Z order, and inherit the transformation
* of the parent.
*
* @param parent The parent control.
*/
@NonNull
public Builder setParent(@Nullable SurfaceControl parent) {
mParent = parent;
return this;
}
/**
* Sets a metadata int.
*
* @param key metadata key
* @param data associated data
* @hide
*/
public Builder setMetadata(int key, int data) {
if (mMetadata == null) {
mMetadata = new SparseIntArray();
}
mMetadata.put(key, data);
return this;
}
/**
* Indicate whether a 'ColorLayer' is to be constructed.
*
* Color layers will not have an associated BufferQueue and will instead always render a
* solid color (that is, solid before plane alpha). Currently that color is black.
*
* @hide
*/
public Builder setColorLayer() {
unsetBufferSize();
return setFlags(FX_SURFACE_DIM, FX_SURFACE_MASK);
}
private boolean isColorLayerSet() {
return (mFlags & FX_SURFACE_DIM) == FX_SURFACE_DIM;
}
/**
* Indicates whether a 'ContainerLayer' is to be constructed.
*
* Container layers will not be rendered in any fashion and instead are used
* as a parent of renderable layers.
*
* @hide
*/
public Builder setContainerLayer() {
unsetBufferSize();
return setFlags(FX_SURFACE_CONTAINER, FX_SURFACE_MASK);
}
private boolean isContainerLayerSet() {
return (mFlags & FX_SURFACE_CONTAINER) == FX_SURFACE_CONTAINER;
}
/**
* Set 'Surface creation flags' such as {@link #HIDDEN}, {@link #SECURE}.
*
* TODO: Finish conversion to individual builder methods?
* @param flags The combined flags
* @hide
*/
public Builder setFlags(int flags) {
mFlags = flags;
return this;
}
private Builder setFlags(int flags, int mask) {
mFlags = (mFlags & ~mask) | flags;
return this;
}
}
/**
* Create a surface with a name.
* <p>
* The surface creation flags specify what kind of surface to create and
* certain options such as whether the surface can be assumed to be opaque
* and whether it should be initially hidden. Surfaces should always be
* created with the {@link #HIDDEN} flag set to ensure that they are not
* made visible prematurely before all of the surface's properties have been
* configured.
* <p>
* Good practice is to first create the surface with the {@link #HIDDEN} flag
* specified, open a transaction, set the surface layer, layer stack, alpha,
* and position, call {@link #show} if appropriate, and close the transaction.
* <p>
* Bounds of the surface is determined by its crop and its buffer size. If the
* surface has no buffer or crop, the surface is boundless and only constrained
* by the size of its parent bounds.
*
* @param session The surface session, must not be null.
* @param name The surface name, must not be null.
* @param w The surface initial width.
* @param h The surface initial height.
* @param flags The surface creation flags. Should always include {@link #HIDDEN}
* in the creation flags.
* @param metadata Initial metadata.
*
* @throws throws OutOfResourcesException If the SurfaceControl cannot be created.
*/
private SurfaceControl(SurfaceSession session, String name, int w, int h, int format, int flags,
SurfaceControl parent, SparseIntArray metadata)
throws OutOfResourcesException, IllegalArgumentException {
if (name == null) {
throw new IllegalArgumentException("name must not be null");
}
if ((flags & SurfaceControl.HIDDEN) == 0) {
Log.w(TAG, "Surfaces should always be created with the HIDDEN flag set "
+ "to ensure that they are not made visible prematurely before "
+ "all of the surface's properties have been configured. "
+ "Set the other properties and make the surface visible within "
+ "a transaction. New surface name: " + name,
new Throwable());
}
mName = name;
mWidth = w;
mHeight = h;
Parcel metaParcel = Parcel.obtain();
try {
if (metadata != null && metadata.size() > 0) {
metaParcel.writeInt(metadata.size());
for (int i = 0; i < metadata.size(); ++i) {
metaParcel.writeInt(metadata.keyAt(i));
metaParcel.writeByteArray(
ByteBuffer.allocate(4).order(ByteOrder.nativeOrder())
.putInt(metadata.valueAt(i)).array());
}
metaParcel.setDataPosition(0);
}
mNativeObject = nativeCreate(session, name, w, h, format, flags,
parent != null ? parent.mNativeObject : 0, metaParcel);
} finally {
metaParcel.recycle();
}
if (mNativeObject == 0) {
throw new OutOfResourcesException(
"Couldn't allocate SurfaceControl native object");
}
mCloseGuard.open("release");
}
/** This is a transfer constructor, useful for transferring a live SurfaceControl native
* object to another Java wrapper which could have some different behavior, e.g.
* event logging.
* @hide
*/
public SurfaceControl(SurfaceControl other) {
mName = other.mName;
mWidth = other.mWidth;
mHeight = other.mHeight;
mNativeObject = other.mNativeObject;
other.mCloseGuard.close();
other.mNativeObject = 0;
mCloseGuard.open("release");
}
private SurfaceControl(Parcel in) {
readFromParcel(in);
mCloseGuard.open("release");
}
/**
* @hide
*/
public SurfaceControl() {
mCloseGuard.open("release");
}
public void readFromParcel(Parcel in) {
if (in == null) {
throw new IllegalArgumentException("source must not be null");
}
mName = in.readString();
mWidth = in.readInt();
mHeight = in.readInt();
long object = 0;
if (in.readInt() != 0) {
object = nativeReadFromParcel(in);
}
assignNativeObject(object);
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeString(mName);
dest.writeInt(mWidth);
dest.writeInt(mHeight);
if (mNativeObject == 0) {
dest.writeInt(0);
} else {
dest.writeInt(1);
}
nativeWriteToParcel(mNativeObject, dest);
if ((flags & Parcelable.PARCELABLE_WRITE_RETURN_VALUE) != 0) {
release();
}
}
/**
* Write to a protocol buffer output stream. Protocol buffer message definition is at {@link
* android.view.SurfaceControlProto}.
*
* @param proto Stream to write the SurfaceControl object to.
* @param fieldId Field Id of the SurfaceControl as defined in the parent message.
* @hide
*/
public void writeToProto(ProtoOutputStream proto, long fieldId) {
final long token = proto.start(fieldId);
proto.write(HASH_CODE, System.identityHashCode(this));
proto.write(NAME, mName);
proto.end(token);
}
public static final @android.annotation.NonNull Creator<SurfaceControl> CREATOR
= new Creator<SurfaceControl>() {
public SurfaceControl createFromParcel(Parcel in) {
return new SurfaceControl(in);
}
public SurfaceControl[] newArray(int size) {
return new SurfaceControl[size];
}
};
/**
* @hide
*/
@Override
protected void finalize() throws Throwable {
try {
if (mCloseGuard != null) {
mCloseGuard.warnIfOpen();
}
if (mNativeObject != 0) {
nativeRelease(mNativeObject);
}
} finally {
super.finalize();
}
}
/**
* Release the local reference to the server-side surface. The surface
* may continue to exist on-screen as long as its parent continues
* to exist. To explicitly remove a surface from the screen use
* {@link Transaction#reparent} with a null-parent. After release,
* {@link #isValid} will return false and other methods will throw
* an exception.
*
* Always call release() when you're done with a SurfaceControl.
*/
public void release() {
if (mNativeObject != 0) {
nativeRelease(mNativeObject);
mNativeObject = 0;
}
mCloseGuard.close();
}
/**
* Release the local resources like {@link #release} but also
* remove the Surface from the screen.
* @hide
*/
public void remove() {
if (mNativeObject != 0) {
nativeDestroy(mNativeObject);
mNativeObject = 0;
}
mCloseGuard.close();
}
/**
* Disconnect any client still connected to the surface.
* @hide
*/
public void disconnect() {
if (mNativeObject != 0) {
nativeDisconnect(mNativeObject);
}
}
private void checkNotReleased() {
if (mNativeObject == 0) throw new NullPointerException(
"mNativeObject is null. Have you called release() already?");
}
/**
* Check whether this instance points to a valid layer with the system-compositor. For
* example this may be false if construction failed, or the layer was released
* ({@link #release}).
*
* @return Whether this SurfaceControl is valid.
*/
public boolean isValid() {
return mNativeObject != 0;
}
/*
* set surface parameters.
* needs to be inside open/closeTransaction block
*/
/** start a transaction
* @hide
*/
@UnsupportedAppUsage
public static void openTransaction() {
synchronized (SurfaceControl.class) {
if (sGlobalTransaction == null) {
sGlobalTransaction = new Transaction();
}
synchronized(SurfaceControl.class) {
sTransactionNestCount++;
}
}
}
/**
* Merge the supplied transaction in to the deprecated "global" transaction.
* This clears the supplied transaction in an identical fashion to {@link Transaction#merge}.
* <p>
* This is a utility for interop with legacy-code and will go away with the Global Transaction.
* @hide
*/
@Deprecated
public static void mergeToGlobalTransaction(Transaction t) {
synchronized(SurfaceControl.class) {
sGlobalTransaction.merge(t);
}
}
/** end a transaction
* @hide
*/
@UnsupportedAppUsage
public static void closeTransaction() {
synchronized(SurfaceControl.class) {
if (sTransactionNestCount == 0) {
Log.e(TAG,
"Call to SurfaceControl.closeTransaction without matching openTransaction");
} else if (--sTransactionNestCount > 0) {
return;
}
sGlobalTransaction.apply();
}
}
/**
* @hide
*/
public void deferTransactionUntil(IBinder handle, long frame) {
synchronized(SurfaceControl.class) {
sGlobalTransaction.deferTransactionUntil(this, handle, frame);
}
}
/**
* @hide
*/
public void deferTransactionUntil(Surface barrier, long frame) {
synchronized(SurfaceControl.class) {
sGlobalTransaction.deferTransactionUntilSurface(this, barrier, frame);
}
}
/**
* @hide
*/
public void reparentChildren(IBinder newParentHandle) {
synchronized(SurfaceControl.class) {
sGlobalTransaction.reparentChildren(this, newParentHandle);
}
}
/**
* @hide
*/
public void reparent(SurfaceControl newParent) {
synchronized(SurfaceControl.class) {
sGlobalTransaction.reparent(this, newParent);
}
}
/**
* @hide
*/
public void detachChildren() {
synchronized(SurfaceControl.class) {
sGlobalTransaction.detachChildren(this);
}
}
/**
* @hide
*/
public void setOverrideScalingMode(int scalingMode) {
checkNotReleased();
synchronized(SurfaceControl.class) {
sGlobalTransaction.setOverrideScalingMode(this, scalingMode);
}
}
/**
* @hide
*/
public IBinder getHandle() {
return nativeGetHandle(mNativeObject);
}
/**
* @hide
*/
public static void setAnimationTransaction() {
synchronized (SurfaceControl.class) {
sGlobalTransaction.setAnimationTransaction();
}
}
/**
* @hide
*/
@UnsupportedAppUsage
public void setLayer(int zorder) {
checkNotReleased();
synchronized(SurfaceControl.class) {
sGlobalTransaction.setLayer(this, zorder);
}
}
/**
* @hide
*/
public void setRelativeLayer(SurfaceControl relativeTo, int zorder) {
checkNotReleased();
synchronized(SurfaceControl.class) {
sGlobalTransaction.setRelativeLayer(this, relativeTo, zorder);
}
}
/**
* @hide
*/
@UnsupportedAppUsage
public void setPosition(float x, float y) {
checkNotReleased();
synchronized(SurfaceControl.class) {
sGlobalTransaction.setPosition(this, x, y);
}
}
/**
* @hide
*/
public void setGeometryAppliesWithResize() {
checkNotReleased();
synchronized(SurfaceControl.class) {
sGlobalTransaction.setGeometryAppliesWithResize(this);
}
}
/**
* @hide
*/
public void setBufferSize(int w, int h) {
checkNotReleased();
synchronized(SurfaceControl.class) {
sGlobalTransaction.setBufferSize(this, w, h);
}
}
/**
* @hide
*/
@UnsupportedAppUsage
public void hide() {
checkNotReleased();
synchronized(SurfaceControl.class) {
sGlobalTransaction.hide(this);
}
}
/**
* @hide
*/
@UnsupportedAppUsage
public void show() {
checkNotReleased();
synchronized(SurfaceControl.class) {
sGlobalTransaction.show(this);
}
}
/**
* @hide
*/
public void setTransparentRegionHint(Region region) {
checkNotReleased();
synchronized(SurfaceControl.class) {
sGlobalTransaction.setTransparentRegionHint(this, region);
}
}
/**
* @hide
*/
public boolean clearContentFrameStats() {
checkNotReleased();
return nativeClearContentFrameStats(mNativeObject);
}
/**
* @hide
*/
public boolean getContentFrameStats(WindowContentFrameStats outStats) {
checkNotReleased();
return nativeGetContentFrameStats(mNativeObject, outStats);
}
/**
* @hide
*/
public static boolean clearAnimationFrameStats() {
return nativeClearAnimationFrameStats();
}
/**
* @hide
*/
public static boolean getAnimationFrameStats(WindowAnimationFrameStats outStats) {
return nativeGetAnimationFrameStats(outStats);
}
/**
* @hide
*/
public void setAlpha(float alpha) {
checkNotReleased();
synchronized(SurfaceControl.class) {
sGlobalTransaction.setAlpha(this, alpha);
}
}
/**
* @hide
*/
public void setColor(@Size(3) float[] color) {
checkNotReleased();
synchronized (SurfaceControl.class) {
sGlobalTransaction.setColor(this, color);
}
}
/**
* @hide
*/
public void setMatrix(float dsdx, float dtdx, float dtdy, float dsdy) {
checkNotReleased();
synchronized(SurfaceControl.class) {
sGlobalTransaction.setMatrix(this, dsdx, dtdx, dtdy, dsdy);
}
}
/**
* Sets the transform and position of a {@link SurfaceControl} from a 3x3 transformation matrix.
*
* @param matrix The matrix to apply.
* @param float9 An array of 9 floats to be used to extract the values from the matrix.
* @hide
*/
public void setMatrix(Matrix matrix, float[] float9) {
checkNotReleased();
matrix.getValues(float9);
synchronized (SurfaceControl.class) {
sGlobalTransaction.setMatrix(this, float9[MSCALE_X], float9[MSKEW_Y],
float9[MSKEW_X], float9[MSCALE_Y]);
sGlobalTransaction.setPosition(this, float9[MTRANS_X], float9[MTRANS_Y]);
}
}
/**
* Sets the color transform for the Surface.
* @param matrix A float array with 9 values represents a 3x3 transform matrix
* @param translation A float array with 3 values represents a translation vector
* @hide
*/
public void setColorTransform(@Size(9) float[] matrix, @Size(3) float[] translation) {
checkNotReleased();
synchronized (SurfaceControl.class) {
sGlobalTransaction.setColorTransform(this, matrix, translation);
}
}
/**
* Sets the Surface to be color space agnostic. If a surface is color space agnostic,
* the color can be interpreted in any color space.
* @param agnostic A boolean to indicate whether the surface is color space agnostic
* @hide
*/
public void setColorSpaceAgnostic(boolean agnostic) {
checkNotReleased();
synchronized (SurfaceControl.class) {
sGlobalTransaction.setColorSpaceAgnostic(this, agnostic);
}
}
/**
* Bounds the surface and its children to the bounds specified. Size of the surface will be
* ignored and only the crop and buffer size will be used to determine the bounds of the
* surface. If no crop is specified and the surface has no buffer, the surface bounds is only
* constrained by the size of its parent bounds.
*
* @param crop Bounds of the crop to apply.
* @hide
*/
public void setWindowCrop(Rect crop) {
checkNotReleased();
synchronized (SurfaceControl.class) {
sGlobalTransaction.setWindowCrop(this, crop);
}
}
/**
* Same as {@link SurfaceControl#setWindowCrop(Rect)} but sets the crop rect top left at 0, 0.
*
* @param width width of crop rect
* @param height height of crop rect
* @hide
*/
public void setWindowCrop(int width, int height) {
checkNotReleased();
synchronized (SurfaceControl.class) {
sGlobalTransaction.setWindowCrop(this, width, height);
}
}
/**
* Sets the corner radius of a {@link SurfaceControl}.
*
* @param cornerRadius Corner radius in pixels.
* @hide
*/
public void setCornerRadius(float cornerRadius) {
checkNotReleased();
synchronized (SurfaceControl.class) {
sGlobalTransaction.setCornerRadius(this, cornerRadius);
}
}
/**
* @hide
*/
public void setLayerStack(int layerStack) {
checkNotReleased();
synchronized(SurfaceControl.class) {
sGlobalTransaction.setLayerStack(this, layerStack);
}
}
/**
* @hide
*/
public void setOpaque(boolean isOpaque) {
checkNotReleased();
synchronized (SurfaceControl.class) {
sGlobalTransaction.setOpaque(this, isOpaque);
}
}
/**
* @hide
*/
public void setSecure(boolean isSecure) {
checkNotReleased();
synchronized (SurfaceControl.class) {
sGlobalTransaction.setSecure(this, isSecure);
}
}
/**
* @hide
*/
public int getWidth() {
synchronized (mSizeLock) {
return mWidth;
}
}
/**
* @hide
*/
public int getHeight() {
synchronized (mSizeLock) {
return mHeight;
}
}
@Override
public String toString() {
return "Surface(name=" + mName + ")/@0x" +
Integer.toHexString(System.identityHashCode(this));
}
/*
* set display parameters.
* needs to be inside open/closeTransaction block
*/
/**
* Describes the properties of a physical display known to surface flinger.
* @hide
*/
public static final class PhysicalDisplayInfo {
/**
* @hide
*/
@UnsupportedAppUsage
public int width;
/**
* @hide
*/
@UnsupportedAppUsage
public int height;
/**
* @hide
*/
@UnsupportedAppUsage
public float refreshRate;
/**
* @hide
*/
@UnsupportedAppUsage
public float density;
/**
* @hide
*/
@UnsupportedAppUsage
public float xDpi;
/**
* @hide
*/
@UnsupportedAppUsage
public float yDpi;
/**
* @hide
*/
@UnsupportedAppUsage
public boolean secure;
/**
* @hide
*/
@UnsupportedAppUsage
public long appVsyncOffsetNanos;
/**
* @hide
*/
@UnsupportedAppUsage
public long presentationDeadlineNanos;
/**
* @hide
*/
@UnsupportedAppUsage
public PhysicalDisplayInfo() {
}
/**
* @hide
*/
public PhysicalDisplayInfo(PhysicalDisplayInfo other) {
copyFrom(other);
}
/**
* @hide
*/
@Override
public boolean equals(Object o) {
return o instanceof PhysicalDisplayInfo && equals((PhysicalDisplayInfo)o);
}
/**
* @hide
*/
public boolean equals(PhysicalDisplayInfo other) {
return other != null
&& width == other.width
&& height == other.height
&& refreshRate == other.refreshRate
&& density == other.density
&& xDpi == other.xDpi
&& yDpi == other.yDpi
&& secure == other.secure
&& appVsyncOffsetNanos == other.appVsyncOffsetNanos
&& presentationDeadlineNanos == other.presentationDeadlineNanos;
}
/**
* @hide
*/
@Override
public int hashCode() {
return 0; // don't care
}
/**
* @hide
*/
public void copyFrom(PhysicalDisplayInfo other) {
width = other.width;
height = other.height;
refreshRate = other.refreshRate;
density = other.density;
xDpi = other.xDpi;
yDpi = other.yDpi;
secure = other.secure;
appVsyncOffsetNanos = other.appVsyncOffsetNanos;
presentationDeadlineNanos = other.presentationDeadlineNanos;
}
/**
* @hide
*/
@Override
public String toString() {
return "PhysicalDisplayInfo{" + width + " x " + height + ", " + refreshRate + " fps, "
+ "density " + density + ", " + xDpi + " x " + yDpi + " dpi, secure " + secure
+ ", appVsyncOffset " + appVsyncOffsetNanos
+ ", bufferDeadline " + presentationDeadlineNanos + "}";
}
}
/**
* @hide
*/
public static void setDisplayPowerMode(IBinder displayToken, int mode) {
if (displayToken == null) {
throw new IllegalArgumentException("displayToken must not be null");
}
nativeSetDisplayPowerMode(displayToken, mode);
}
/**
* @hide
*/
@UnsupportedAppUsage
public static SurfaceControl.PhysicalDisplayInfo[] getDisplayConfigs(IBinder displayToken) {
if (displayToken == null) {
throw new IllegalArgumentException("displayToken must not be null");
}
return nativeGetDisplayConfigs(displayToken);
}
/**
* @hide
*/
public static int getActiveConfig(IBinder displayToken) {
if (displayToken == null) {
throw new IllegalArgumentException("displayToken must not be null");
}
return nativeGetActiveConfig(displayToken);
}
/**
* @hide
*/
public static DisplayedContentSamplingAttributes getDisplayedContentSamplingAttributes(
IBinder displayToken) {
if (displayToken == null) {
throw new IllegalArgumentException("displayToken must not be null");
}
return nativeGetDisplayedContentSamplingAttributes(displayToken);
}
/**
* @hide
*/
public static boolean setDisplayedContentSamplingEnabled(
IBinder displayToken, boolean enable, int componentMask, int maxFrames) {
if (displayToken == null) {
throw new IllegalArgumentException("displayToken must not be null");
}
final int maxColorComponents = 4;
if ((componentMask >> maxColorComponents) != 0) {
throw new IllegalArgumentException("invalid componentMask when enabling sampling");
}
return nativeSetDisplayedContentSamplingEnabled(
displayToken, enable, componentMask, maxFrames);
}
/**
* @hide
*/
public static DisplayedContentSample getDisplayedContentSample(
IBinder displayToken, long maxFrames, long timestamp) {
if (displayToken == null) {
throw new IllegalArgumentException("displayToken must not be null");
}
return nativeGetDisplayedContentSample(displayToken, maxFrames, timestamp);
}
/**
* @hide
*/
public static boolean setActiveConfig(IBinder displayToken, int id) {
if (displayToken == null) {
throw new IllegalArgumentException("displayToken must not be null");
}
return nativeSetActiveConfig(displayToken, id);
}
/**
* @hide
*/
public static boolean setAllowedDisplayConfigs(IBinder displayToken, int[] allowedConfigs) {
if (displayToken == null) {
throw new IllegalArgumentException("displayToken must not be null");
}
if (allowedConfigs == null) {
throw new IllegalArgumentException("allowedConfigs must not be null");
}
return nativeSetAllowedDisplayConfigs(displayToken, allowedConfigs);
}
/**
* @hide
*/
public static int[] getAllowedDisplayConfigs(IBinder displayToken) {
if (displayToken == null) {
throw new IllegalArgumentException("displayToken must not be null");
}
return nativeGetAllowedDisplayConfigs(displayToken);
}
/**
* @hide
*/
public static int[] getDisplayColorModes(IBinder displayToken) {
if (displayToken == null) {
throw new IllegalArgumentException("displayToken must not be null");
}
return nativeGetDisplayColorModes(displayToken);
}
/**
* Color coordinates in CIE1931 XYZ color space
*
* @hide
*/
public static final class CieXyz {
/**
* @hide
*/
public float X;
/**
* @hide
*/
public float Y;
/**
* @hide
*/
public float Z;
}
/**
* Contains a display's color primaries
*
* @hide
*/
public static final class DisplayPrimaries {
/**
* @hide
*/
public CieXyz red;
/**
* @hide
*/
public CieXyz green;
/**
* @hide
*/
public CieXyz blue;
/**
* @hide
*/
public CieXyz white;
/**
* @hide
*/
public DisplayPrimaries() {
}
}
/**
* @hide
*/
public static SurfaceControl.DisplayPrimaries getDisplayNativePrimaries(
IBinder displayToken) {
if (displayToken == null) {
throw new IllegalArgumentException("displayToken must not be null");
}
return nativeGetDisplayNativePrimaries(displayToken);
}
/**
* @hide
*/
public static int getActiveColorMode(IBinder displayToken) {
if (displayToken == null) {
throw new IllegalArgumentException("displayToken must not be null");
}
return nativeGetActiveColorMode(displayToken);
}
/**
* @hide
*/
public static boolean setActiveColorMode(IBinder displayToken, int colorMode) {
if (displayToken == null) {
throw new IllegalArgumentException("displayToken must not be null");
}
return nativeSetActiveColorMode(displayToken, colorMode);
}
/**
* Returns an array of color spaces with 2 elements. The first color space is the
* default color space and second one is wide color gamut color space.
* @hide
*/
public static ColorSpace[] getCompositionColorSpaces() {
int[] dataspaces = nativeGetCompositionDataspaces();
ColorSpace srgb = ColorSpace.get(ColorSpace.Named.SRGB);
ColorSpace[] colorSpaces = { srgb, srgb };
if (dataspaces.length == 2) {
for (int i = 0; i < 2; ++i) {
switch(dataspaces[i]) {
case INTERNAL_DATASPACE_DISPLAY_P3:
colorSpaces[i] = ColorSpace.get(ColorSpace.Named.DISPLAY_P3);
break;
case INTERNAL_DATASPACE_SCRGB:
colorSpaces[i] = ColorSpace.get(ColorSpace.Named.EXTENDED_SRGB);
break;
case INTERNAL_DATASPACE_SRGB:
// Other dataspace is not recognized, use SRGB color space instead,
// the default value of the array is already SRGB, thus do nothing.
default:
break;
}
}
}
return colorSpaces;
}
/**
* @hide
*/
@UnsupportedAppUsage
public static void setDisplayProjection(IBinder displayToken,
int orientation, Rect layerStackRect, Rect displayRect) {
synchronized (SurfaceControl.class) {
sGlobalTransaction.setDisplayProjection(displayToken, orientation,
layerStackRect, displayRect);
}
}
/**
* @hide
*/
@UnsupportedAppUsage
public static void setDisplayLayerStack(IBinder displayToken, int layerStack) {
synchronized (SurfaceControl.class) {
sGlobalTransaction.setDisplayLayerStack(displayToken, layerStack);
}
}
/**
* @hide
*/
@UnsupportedAppUsage
public static void setDisplaySurface(IBinder displayToken, Surface surface) {
synchronized (SurfaceControl.class) {
sGlobalTransaction.setDisplaySurface(displayToken, surface);
}
}
/**
* @hide
*/
public static void setDisplaySize(IBinder displayToken, int width, int height) {
synchronized (SurfaceControl.class) {
sGlobalTransaction.setDisplaySize(displayToken, width, height);
}
}
/**
* @hide
*/
public static Display.HdrCapabilities getHdrCapabilities(IBinder displayToken) {
if (displayToken == null) {
throw new IllegalArgumentException("displayToken must not be null");
}
return nativeGetHdrCapabilities(displayToken);
}
/**
* @hide
*/
@UnsupportedAppUsage
public static IBinder createDisplay(String name, boolean secure) {
if (name == null) {
throw new IllegalArgumentException("name must not be null");
}
return nativeCreateDisplay(name, secure);
}
/**
* @hide
*/
@UnsupportedAppUsage
public static void destroyDisplay(IBinder displayToken) {
if (displayToken == null) {
throw new IllegalArgumentException("displayToken must not be null");
}
nativeDestroyDisplay(displayToken);
}
/**
* @hide
*/
public static long[] getPhysicalDisplayIds() {
return nativeGetPhysicalDisplayIds();
}
/**
* @hide
*/
public static IBinder getPhysicalDisplayToken(long physicalDisplayId) {
return nativeGetPhysicalDisplayToken(physicalDisplayId);
}
/**
* TODO(116025192): Remove this stopgap once framework is display-agnostic.
*
* @hide
*/
public static IBinder getInternalDisplayToken() {
final long[] physicalDisplayIds = getPhysicalDisplayIds();
if (physicalDisplayIds.length == 0) {
return null;
}
return getPhysicalDisplayToken(physicalDisplayIds[0]);
}
/**
* @see SurfaceControl#screenshot(IBinder, Surface, Rect, int, int, boolean, int)
* @hide
*/
public static void screenshot(IBinder display, Surface consumer) {
screenshot(display, consumer, new Rect(), 0, 0, false, 0);
}
/**
* Copy the current screen contents into the provided {@link Surface}
*
* @param consumer The {@link Surface} to take the screenshot into.
* @see SurfaceControl#screenshotToBuffer(IBinder, Rect, int, int, boolean, int)
* @hide
*/
public static void screenshot(IBinder display, Surface consumer, Rect sourceCrop, int width,
int height, boolean useIdentityTransform, int rotation) {
if (consumer == null) {
throw new IllegalArgumentException("consumer must not be null");
}
final ScreenshotGraphicBuffer buffer = screenshotToBuffer(display, sourceCrop, width,
height, useIdentityTransform, rotation);
try {
consumer.attachAndQueueBuffer(buffer.getGraphicBuffer());
} catch (RuntimeException e) {
Log.w(TAG, "Failed to take screenshot - " + e.getMessage());
}
}
/**
* @see SurfaceControl#screenshot(Rect, int, int, boolean, int)}
* @hide
*/
@UnsupportedAppUsage
public static Bitmap screenshot(Rect sourceCrop, int width, int height, int rotation) {
return screenshot(sourceCrop, width, height, false, rotation);
}
/**
* Copy the current screen contents into a hardware bitmap and return it.
* Note: If you want to modify the Bitmap in software, you will need to copy the Bitmap into
* a software Bitmap using {@link Bitmap#copy(Bitmap.Config, boolean)}
*
* CAVEAT: Versions of screenshot that return a {@link Bitmap} can be extremely slow; avoid use
* unless absolutely necessary; prefer the versions that use a {@link Surface} such as
* {@link SurfaceControl#screenshot(IBinder, Surface)} or {@link GraphicBuffer} such as
* {@link SurfaceControl#screenshotToBuffer(IBinder, Rect, int, int, boolean, int)}.
*
* @see SurfaceControl#screenshotToBuffer(IBinder, Rect, int, int, boolean, int)}
* @hide
*/
@UnsupportedAppUsage
public static Bitmap screenshot(Rect sourceCrop, int width, int height,
boolean useIdentityTransform, int rotation) {
// TODO: should take the display as a parameter
final IBinder displayToken = SurfaceControl.getInternalDisplayToken();
if (displayToken == null) {
Log.w(TAG, "Failed to take screenshot because internal display is disconnected");
return null;
}
if (rotation == ROTATION_90 || rotation == ROTATION_270) {
rotation = (rotation == ROTATION_90) ? ROTATION_270 : ROTATION_90;
}
SurfaceControl.rotateCropForSF(sourceCrop, rotation);
final ScreenshotGraphicBuffer buffer = screenshotToBuffer(displayToken, sourceCrop, width,
height, useIdentityTransform, rotation);
if (buffer == null) {
Log.w(TAG, "Failed to take screenshot");
return null;
}
return Bitmap.wrapHardwareBuffer(buffer.getGraphicBuffer(), buffer.getColorSpace());
}
/**
* Captures all the surfaces in a display and returns a {@link GraphicBuffer} with the content.
*
* @param display The display to take the screenshot of.
* @param sourceCrop The portion of the screen to capture into the Bitmap; caller may
* pass in 'new Rect()' if no cropping is desired.
* @param width The desired width of the returned bitmap; the raw screen will be
* scaled down to this size; caller may pass in 0 if no scaling is
* desired.
* @param height The desired height of the returned bitmap; the raw screen will
* be scaled down to this size; caller may pass in 0 if no scaling
* is desired.
* @param useIdentityTransform Replace whatever transformation (rotation, scaling, translation)
* the surface layers are currently using with the identity
* transformation while taking the screenshot.
* @param rotation Apply a custom clockwise rotation to the screenshot, i.e.
* Surface.ROTATION_0,90,180,270. SurfaceFlinger will always take
* screenshots in its native portrait orientation by default, so
* this is useful for returning screenshots that are independent of
* device orientation.
* @return Returns a GraphicBuffer that contains the captured content.
* @hide
*/
public static ScreenshotGraphicBuffer screenshotToBuffer(IBinder display, Rect sourceCrop,
int width, int height, boolean useIdentityTransform, int rotation) {
if (display == null) {
throw new IllegalArgumentException("displayToken must not be null");
}
return nativeScreenshot(display, sourceCrop, width, height, useIdentityTransform, rotation,
false /* captureSecureLayers */);
}
/**
* Like screenshotToBuffer, but if the caller is AID_SYSTEM, allows
* for the capture of secure layers. This is used for the screen rotation
* animation where the system server takes screenshots but does
* not persist them or allow them to leave the server. However in other
* cases in the system server, we mostly want to omit secure layers
* like when we take a screenshot on behalf of the assistant.
*
* @hide
*/
public static ScreenshotGraphicBuffer screenshotToBufferWithSecureLayersUnsafe(IBinder display,
Rect sourceCrop, int width, int height, boolean useIdentityTransform,
int rotation) {
if (display == null) {
throw new IllegalArgumentException("displayToken must not be null");
}
return nativeScreenshot(display, sourceCrop, width, height, useIdentityTransform, rotation,
true /* captureSecureLayers */);
}
private static void rotateCropForSF(Rect crop, int rot) {
if (rot == Surface.ROTATION_90 || rot == Surface.ROTATION_270) {
int tmp = crop.top;
crop.top = crop.left;
crop.left = tmp;
tmp = crop.right;
crop.right = crop.bottom;
crop.bottom = tmp;
}
}
/**
* Captures a layer and its children and returns a {@link GraphicBuffer} with the content.
*
* @param layerHandleToken The root layer to capture.
* @param sourceCrop The portion of the root surface to capture; caller may pass in 'new
* Rect()' or null if no cropping is desired.
* @param frameScale The desired scale of the returned buffer; the raw
* screen will be scaled up/down.
*
* @return Returns a GraphicBuffer that contains the layer capture.
* @hide
*/
public static ScreenshotGraphicBuffer captureLayers(IBinder layerHandleToken, Rect sourceCrop,
float frameScale) {
final IBinder displayToken = SurfaceControl.getInternalDisplayToken();
return nativeCaptureLayers(displayToken, layerHandleToken, sourceCrop, frameScale, null);
}
/**
* Like {@link captureLayers} but with an array of layer handles to exclude.
* @hide
*/
public static ScreenshotGraphicBuffer captureLayersExcluding(IBinder layerHandleToken,
Rect sourceCrop, float frameScale, IBinder[] exclude) {
final IBinder displayToken = SurfaceControl.getInternalDisplayToken();
return nativeCaptureLayers(displayToken, layerHandleToken, sourceCrop, frameScale, exclude);
}
/**
* Returns whether protected content is supported in GPU composition.
* @hide
*/
public static boolean getProtectedContentSupport() {
return nativeGetProtectedContentSupport();
}
/**
* Returns whether brightness operations are supported on a display.
*
* @param displayToken
* The token for the display.
*
* @return Whether brightness operations are supported on the display.
*
* @hide
*/
public static boolean getDisplayBrightnessSupport(IBinder displayToken) {
return nativeGetDisplayBrightnessSupport(displayToken);
}
/**
* Sets the brightness of a display.
*
* @param displayToken
* The token for the display whose brightness is set.
* @param brightness
* A number between 0.0f (minimum brightness) and 1.0f (maximum brightness), or -1.0f to
* turn the backlight off.
*
* @return Whether the method succeeded or not.
*
* @throws IllegalArgumentException if:
* - displayToken is null;
* - brightness is NaN or greater than 1.0f.
*
* @hide
*/
public static boolean setDisplayBrightness(IBinder displayToken, float brightness) {
Objects.requireNonNull(displayToken);
if (Float.isNaN(brightness) || brightness > 1.0f
|| (brightness < 0.0f && brightness != -1.0f)) {
throw new IllegalArgumentException("brightness must be a number between 0.0f and 1.0f,"
+ " or -1 to turn the backlight off.");
}
return nativeSetDisplayBrightness(displayToken, brightness);
}
/**
* An atomic set of changes to a set of SurfaceControl.
*/
public static class Transaction implements Closeable {
/**
* @hide
*/
public static final NativeAllocationRegistry sRegistry = new NativeAllocationRegistry(
Transaction.class.getClassLoader(),
nativeGetNativeTransactionFinalizer(), 512);
private long mNativeObject;
private final ArrayMap<SurfaceControl, Point> mResizedSurfaces = new ArrayMap<>();
Runnable mFreeNativeResources;
/**
* Open a new transaction object. The transaction may be filed with commands to
* manipulate {@link SurfaceControl} instances, and then applied atomically with
* {@link #apply}. Eventually the user should invoke {@link #close}, when the object
* is no longer required. Note however that re-using a transaction after a call to apply
* is allowed as a convenience.
*/
public Transaction() {
mNativeObject = nativeCreateTransaction();
mFreeNativeResources
= sRegistry.registerNativeAllocation(this, mNativeObject);
}
/**
* Apply the transaction, clearing it's state, and making it usable
* as a new transaction.
*/
public void apply() {
apply(false);
}
/**
* Release the native transaction object, without applying it.
*/
@Override
public void close() {
mFreeNativeResources.run();
mNativeObject = 0;
}
/**
* Jankier version of apply. Avoid use (b/28068298).
* @hide
*/
public void apply(boolean sync) {
applyResizedSurfaces();
nativeApplyTransaction(mNativeObject, sync);
}
private void applyResizedSurfaces() {
for (int i = mResizedSurfaces.size() - 1; i >= 0; i--) {
final Point size = mResizedSurfaces.valueAt(i);
final SurfaceControl surfaceControl = mResizedSurfaces.keyAt(i);
synchronized (surfaceControl.mSizeLock) {
surfaceControl.mWidth = size.x;
surfaceControl.mHeight = size.y;
}
}
mResizedSurfaces.clear();
}
/**
* Toggle the visibility of a given Layer and it's sub-tree.
*
* @param sc The SurfaceControl for which to set the visibility
* @param visible The new visibility
* @return This transaction object.
*/
@NonNull
public Transaction setVisibility(@NonNull SurfaceControl sc, boolean visible) {
sc.checkNotReleased();
if (visible) {
return show(sc);
} else {
return hide(sc);
}
}
/**
* Request that a given surface and it's sub-tree be shown.
*
* @param sc The surface to show.
* @return This transaction.
* @hide
*/
@UnsupportedAppUsage
public Transaction show(SurfaceControl sc) {
sc.checkNotReleased();
nativeSetFlags(mNativeObject, sc.mNativeObject, 0, SURFACE_HIDDEN);
return this;
}
/**
* Request that a given surface and it's sub-tree be hidden.
*
* @param sc The surface to hidden.
* @return This transaction.
* @hide
*/
@UnsupportedAppUsage
public Transaction hide(SurfaceControl sc) {
sc.checkNotReleased();
nativeSetFlags(mNativeObject, sc.mNativeObject, SURFACE_HIDDEN, SURFACE_HIDDEN);
return this;
}
/**
* @hide
*/
@UnsupportedAppUsage
public Transaction setPosition(SurfaceControl sc, float x, float y) {
sc.checkNotReleased();
nativeSetPosition(mNativeObject, sc.mNativeObject, x, y);
return this;
}
/**
* Set the default buffer size for the SurfaceControl, if there is a
* {@link Surface} associated with the control, then
* this will be the default size for buffers dequeued from it.
* @param sc The surface to set the buffer size for.
* @param w The default width
* @param h The default height
* @return This Transaction
*/
@NonNull
public Transaction setBufferSize(@NonNull SurfaceControl sc,
@IntRange(from = 0) int w, @IntRange(from = 0) int h) {
sc.checkNotReleased();
mResizedSurfaces.put(sc, new Point(w, h));
nativeSetSize(mNativeObject, sc.mNativeObject, w, h);
return this;
}
/**
* Set the Z-order for a given SurfaceControl, relative to it's siblings.
* If two siblings share the same Z order the ordering is undefined. Surfaces
* with a negative Z will be placed below the parent surface.
*
* @param sc The SurfaceControl to set the Z order on
* @param z The Z-order
* @return This Transaction.
*/
@NonNull
public Transaction setLayer(@NonNull SurfaceControl sc,
@IntRange(from = Integer.MIN_VALUE, to = Integer.MAX_VALUE) int z) {
sc.checkNotReleased();
nativeSetLayer(mNativeObject, sc.mNativeObject, z);
return this;
}
/**
* @hide
*/
public Transaction setRelativeLayer(SurfaceControl sc, SurfaceControl relativeTo, int z) {
sc.checkNotReleased();
nativeSetRelativeLayer(mNativeObject, sc.mNativeObject,
relativeTo.getHandle(), z);
return this;
}
/**
* @hide
*/
public Transaction setTransparentRegionHint(SurfaceControl sc, Region transparentRegion) {
sc.checkNotReleased();
nativeSetTransparentRegionHint(mNativeObject,
sc.mNativeObject, transparentRegion);
return this;
}
/**
* Set the alpha for a given surface. If the alpha is non-zero the SurfaceControl
* will be blended with the Surfaces under it according to the specified ratio.
*
* @param sc The given SurfaceControl.
* @param alpha The alpha to set.
*/
@NonNull
public Transaction setAlpha(@NonNull SurfaceControl sc,
@FloatRange(from = 0.0, to = 1.0) float alpha) {
sc.checkNotReleased();
nativeSetAlpha(mNativeObject, sc.mNativeObject, alpha);
return this;
}
/**
* @hide
*/
public Transaction setInputWindowInfo(SurfaceControl sc, InputWindowHandle handle) {
sc.checkNotReleased();
nativeSetInputWindowInfo(mNativeObject, sc.mNativeObject, handle);
return this;
}
/**
* Transfers touch focus from one window to another. It is possible for multiple windows to
* have touch focus if they support split touch dispatch
* {@link android.view.WindowManager.LayoutParams#FLAG_SPLIT_TOUCH} but this
* method only transfers touch focus of the specified window without affecting
* other windows that may also have touch focus at the same time.
* @param fromToken The token of a window that currently has touch focus.
* @param toToken The token of the window that should receive touch focus in
* place of the first.
* @hide
*/
public Transaction transferTouchFocus(IBinder fromToken, IBinder toToken) {
nativeTransferTouchFocus(mNativeObject, fromToken, toToken);
return this;
}
/**
* Waits until any changes to input windows have been sent from SurfaceFlinger to
* InputFlinger before returning.
*
* @hide
*/
public Transaction syncInputWindows() {
nativeSyncInputWindows(mNativeObject);
return this;
}
/**
* Specify how the buffer assosciated with this Surface is mapped in to the
* parent coordinate space. The source frame will be scaled to fit the destination
* frame, after being rotated according to the orientation parameter.
*
* @param sc The SurfaceControl to specify the geometry of
* @param sourceCrop The source rectangle in buffer space. Or null for the entire buffer.
* @param destFrame The destination rectangle in parent space. Or null for the source frame.
* @param orientation The buffer rotation
* @return This transaction object.
*/
@NonNull
public Transaction setGeometry(@NonNull SurfaceControl sc, @Nullable Rect sourceCrop,
@Nullable Rect destFrame, @Surface.Rotation int orientation) {
sc.checkNotReleased();
nativeSetGeometry(mNativeObject, sc.mNativeObject, sourceCrop, destFrame, orientation);
return this;
}
/**
* @hide
*/
@UnsupportedAppUsage
public Transaction setMatrix(SurfaceControl sc,
float dsdx, float dtdx, float dtdy, float dsdy) {
sc.checkNotReleased();
nativeSetMatrix(mNativeObject, sc.mNativeObject,
dsdx, dtdx, dtdy, dsdy);
return this;
}
/**
* @hide
*/
@UnsupportedAppUsage
public Transaction setMatrix(SurfaceControl sc, Matrix matrix, float[] float9) {
matrix.getValues(float9);
setMatrix(sc, float9[MSCALE_X], float9[MSKEW_Y],
float9[MSKEW_X], float9[MSCALE_Y]);
setPosition(sc, float9[MTRANS_X], float9[MTRANS_Y]);
return this;
}
/**
* Sets the color transform for the Surface.
* @param matrix A float array with 9 values represents a 3x3 transform matrix
* @param translation A float array with 3 values represents a translation vector
* @hide
*/
public Transaction setColorTransform(SurfaceControl sc, @Size(9) float[] matrix,
@Size(3) float[] translation) {
sc.checkNotReleased();
nativeSetColorTransform(mNativeObject, sc.mNativeObject, matrix, translation);
return this;
}
/**
* Sets the Surface to be color space agnostic. If a surface is color space agnostic,
* the color can be interpreted in any color space.
* @param agnostic A boolean to indicate whether the surface is color space agnostic
* @hide
*/
public Transaction setColorSpaceAgnostic(SurfaceControl sc, boolean agnostic) {
sc.checkNotReleased();
nativeSetColorSpaceAgnostic(mNativeObject, sc.mNativeObject, agnostic);
return this;
}
/**
* @hide
*/
@UnsupportedAppUsage
public Transaction setWindowCrop(SurfaceControl sc, Rect crop) {
sc.checkNotReleased();
if (crop != null) {
nativeSetWindowCrop(mNativeObject, sc.mNativeObject,
crop.left, crop.top, crop.right, crop.bottom);
} else {
nativeSetWindowCrop(mNativeObject, sc.mNativeObject, 0, 0, 0, 0);
}
return this;
}
/**
* @hide
*/
public Transaction setWindowCrop(SurfaceControl sc, int width, int height) {
sc.checkNotReleased();
nativeSetWindowCrop(mNativeObject, sc.mNativeObject, 0, 0, width, height);
return this;
}
/**
* Sets the corner radius of a {@link SurfaceControl}.
* @param sc SurfaceControl
* @param cornerRadius Corner radius in pixels.
* @return Itself.
* @hide
*/
@UnsupportedAppUsage
public Transaction setCornerRadius(SurfaceControl sc, float cornerRadius) {
sc.checkNotReleased();
nativeSetCornerRadius(mNativeObject, sc.mNativeObject, cornerRadius);
return this;
}
/**
* @hide
*/
@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.O)
public Transaction setLayerStack(SurfaceControl sc, int layerStack) {
sc.checkNotReleased();
nativeSetLayerStack(mNativeObject, sc.mNativeObject, layerStack);
return this;
}
/**
* @hide
*/
@UnsupportedAppUsage
public Transaction deferTransactionUntil(SurfaceControl sc, IBinder handle,
long frameNumber) {
if (frameNumber < 0) {
return this;
}
sc.checkNotReleased();
nativeDeferTransactionUntil(mNativeObject, sc.mNativeObject, handle, frameNumber);
return this;
}
/**
* @hide
*/
@UnsupportedAppUsage
public Transaction deferTransactionUntilSurface(SurfaceControl sc, Surface barrierSurface,
long frameNumber) {
if (frameNumber < 0) {
return this;
}
sc.checkNotReleased();
nativeDeferTransactionUntilSurface(mNativeObject, sc.mNativeObject,
barrierSurface.mNativeObject, frameNumber);
return this;
}
/**
* @hide
*/
public Transaction reparentChildren(SurfaceControl sc, IBinder newParentHandle) {
sc.checkNotReleased();
nativeReparentChildren(mNativeObject, sc.mNativeObject, newParentHandle);
return this;
}
/**
* Re-parents a given layer to a new parent. Children inherit transform (position, scaling)
* crop, visibility, and Z-ordering from their parents, as if the children were pixels within the
* parent Surface.
*
* @param sc The SurfaceControl to reparent
* @param newParent The new parent for the given control.
* @return This Transaction
*/
@NonNull
public Transaction reparent(@NonNull SurfaceControl sc,
@Nullable SurfaceControl newParent) {
sc.checkNotReleased();
long otherObject = 0;
if (newParent != null) {
newParent.checkNotReleased();
otherObject = newParent.mNativeObject;
}
nativeReparent(mNativeObject, sc.mNativeObject, otherObject);
return this;
}
/**
* @hide
*/
public Transaction detachChildren(SurfaceControl sc) {
sc.checkNotReleased();
nativeSeverChildren(mNativeObject, sc.mNativeObject);
return this;
}
/**
* @hide
*/
public Transaction setOverrideScalingMode(SurfaceControl sc, int overrideScalingMode) {
sc.checkNotReleased();
nativeSetOverrideScalingMode(mNativeObject, sc.mNativeObject,
overrideScalingMode);
return this;
}
/**
* Sets a color for the Surface.
* @param color A float array with three values to represent r, g, b in range [0..1]
* @hide
*/
@UnsupportedAppUsage
public Transaction setColor(SurfaceControl sc, @Size(3) float[] color) {
sc.checkNotReleased();
nativeSetColor(mNativeObject, sc.mNativeObject, color);
return this;
}
/**
* If the buffer size changes in this transaction, position and crop updates specified
* in this transaction will not complete until a buffer of the new size
* arrives. As transform matrix and size are already frozen in this fashion,
* this enables totally freezing the surface until the resize has completed
* (at which point the geometry influencing aspects of this transaction will then occur)
* @hide
*/
public Transaction setGeometryAppliesWithResize(SurfaceControl sc) {
sc.checkNotReleased();
nativeSetGeometryAppliesWithResize(mNativeObject, sc.mNativeObject);
return this;
}
/**
* Sets the security of the surface. Setting the flag is equivalent to creating the
* Surface with the {@link #SECURE} flag.
* @hide
*/
public Transaction setSecure(SurfaceControl sc, boolean isSecure) {
sc.checkNotReleased();
if (isSecure) {
nativeSetFlags(mNativeObject, sc.mNativeObject, SECURE, SECURE);
} else {
nativeSetFlags(mNativeObject, sc.mNativeObject, 0, SECURE);
}
return this;
}
/**
* Sets the opacity of the surface. Setting the flag is equivalent to creating the
* Surface with the {@link #OPAQUE} flag.
* @hide
*/
public Transaction setOpaque(SurfaceControl sc, boolean isOpaque) {
sc.checkNotReleased();
if (isOpaque) {
nativeSetFlags(mNativeObject, sc.mNativeObject, SURFACE_OPAQUE, SURFACE_OPAQUE);
} else {
nativeSetFlags(mNativeObject, sc.mNativeObject, 0, SURFACE_OPAQUE);
}
return this;
}
/**
* @hide
*/
public Transaction setDisplaySurface(IBinder displayToken, Surface surface) {
if (displayToken == null) {
throw new IllegalArgumentException("displayToken must not be null");
}
if (surface != null) {
synchronized (surface.mLock) {
nativeSetDisplaySurface(mNativeObject, displayToken, surface.mNativeObject);
}
} else {
nativeSetDisplaySurface(mNativeObject, displayToken, 0);
}
return this;
}
/**
* @hide
*/
public Transaction setDisplayLayerStack(IBinder displayToken, int layerStack) {
if (displayToken == null) {
throw new IllegalArgumentException("displayToken must not be null");
}
nativeSetDisplayLayerStack(mNativeObject, displayToken, layerStack);
return this;
}
/**
* @hide
*/
public Transaction setDisplayProjection(IBinder displayToken,
int orientation, Rect layerStackRect, Rect displayRect) {
if (displayToken == null) {
throw new IllegalArgumentException("displayToken must not be null");
}
if (layerStackRect == null) {
throw new IllegalArgumentException("layerStackRect must not be null");
}
if (displayRect == null) {
throw new IllegalArgumentException("displayRect must not be null");
}
nativeSetDisplayProjection(mNativeObject, displayToken, orientation,
layerStackRect.left, layerStackRect.top, layerStackRect.right, layerStackRect.bottom,
displayRect.left, displayRect.top, displayRect.right, displayRect.bottom);
return this;
}
/**
* @hide
*/
public Transaction setDisplaySize(IBinder displayToken, int width, int height) {
if (displayToken == null) {
throw new IllegalArgumentException("displayToken must not be null");
}
if (width <= 0 || height <= 0) {
throw new IllegalArgumentException("width and height must be positive");
}
nativeSetDisplaySize(mNativeObject, displayToken, width, height);
return this;
}
/** flag the transaction as an animation
* @hide
*/
public Transaction setAnimationTransaction() {
nativeSetAnimationTransaction(mNativeObject);
return this;
}
/**
* Indicate that SurfaceFlinger should wake up earlier than usual as a result of this
* transaction. This should be used when the caller thinks that the scene is complex enough
* that it's likely to hit GL composition, and thus, SurfaceFlinger needs to more time in
* order not to miss frame deadlines.
* <p>
* Corresponds to setting ISurfaceComposer::eEarlyWakeup
* @hide
*/
public Transaction setEarlyWakeup() {
nativeSetEarlyWakeup(mNativeObject);
return this;
}
/**
* Sets an arbitrary piece of metadata on the surface. This is a helper for int data.
* @hide
*/
public Transaction setMetadata(SurfaceControl sc, int key, int data) {
Parcel parcel = Parcel.obtain();
parcel.writeInt(data);
try {
setMetadata(sc, key, parcel);
} finally {
parcel.recycle();
}
return this;
}
/**
* Sets an arbitrary piece of metadata on the surface.
* @hide
*/
public Transaction setMetadata(SurfaceControl sc, int key, Parcel data) {
nativeSetMetadata(mNativeObject, sc.mNativeObject, key, data);
return this;
}
/**
* Merge the other transaction into this transaction, clearing the
* other transaction as if it had been applied.
*
* @param other The transaction to merge in to this one.
* @return This transaction.
*/
@NonNull
public Transaction merge(@NonNull Transaction other) {
if (this == other) {
return this;
}
mResizedSurfaces.putAll(other.mResizedSurfaces);
other.mResizedSurfaces.clear();
nativeMergeTransaction(mNativeObject, other.mNativeObject);
return this;
}
/**
* Equivalent to reparent with a null parent, in that it removes
* the SurfaceControl from the scene, but it also releases
* the local resources (by calling {@link SurfaceControl#release})
* after this method returns, {@link SurfaceControl#isValid} will return
* false for the argument.
*
* @param sc The surface to remove and release.
* @return This transaction
* @hide
*/
@NonNull
public Transaction remove(@NonNull SurfaceControl sc) {
reparent(sc, null);
sc.release();
return this;
}
}
}