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Diffstat (limited to 'android/view/SurfaceControl.java')
| -rw-r--r-- | android/view/SurfaceControl.java | 938 |
1 files changed, 938 insertions, 0 deletions
diff --git a/android/view/SurfaceControl.java b/android/view/SurfaceControl.java new file mode 100644 index 00000000..91932dd4 --- /dev/null +++ b/android/view/SurfaceControl.java @@ -0,0 +1,938 @@ +/* + * 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.view.WindowManager.LayoutParams.INVALID_WINDOW_TYPE; + +import android.graphics.Bitmap; +import android.graphics.GraphicBuffer; +import android.graphics.Rect; +import android.graphics.Region; +import android.os.Binder; +import android.os.IBinder; +import android.util.Log; +import android.view.Surface.OutOfResourcesException; + +import dalvik.system.CloseGuard; + +/** + * SurfaceControl + * @hide + */ +public class SurfaceControl { + 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, int windowType, int ownerUid) + throws OutOfResourcesException; + private static native void nativeRelease(long nativeObject); + private static native void nativeDestroy(long nativeObject); + private static native void nativeDisconnect(long nativeObject); + + private static native Bitmap nativeScreenshot(IBinder displayToken, + Rect sourceCrop, int width, int height, int minLayer, int maxLayer, + boolean allLayers, boolean useIdentityTransform, int rotation); + private static native GraphicBuffer nativeScreenshotToBuffer(IBinder displayToken, + Rect sourceCrop, int width, int height, int minLayer, int maxLayer, + boolean allLayers, boolean useIdentityTransform, int rotation); + private static native void nativeScreenshot(IBinder displayToken, Surface consumer, + Rect sourceCrop, int width, int height, int minLayer, int maxLayer, + boolean allLayers, boolean useIdentityTransform); + + private static native void nativeOpenTransaction(); + private static native void nativeCloseTransaction(boolean sync); + private static native void nativeSetAnimationTransaction(); + + private static native void nativeSetLayer(long nativeObject, int zorder); + private static native void nativeSetRelativeLayer(long nativeObject, IBinder relativeTo, + int zorder); + private static native void nativeSetPosition(long nativeObject, float x, float y); + private static native void nativeSetGeometryAppliesWithResize(long nativeObject); + private static native void nativeSetSize(long nativeObject, int w, int h); + private static native void nativeSetTransparentRegionHint(long nativeObject, Region region); + private static native void nativeSetAlpha(long nativeObject, float alpha); + private static native void nativeSetMatrix(long nativeObject, float dsdx, float dtdx, + float dtdy, float dsdy); + private static native void nativeSetFlags(long nativeObject, int flags, int mask); + private static native void nativeSetWindowCrop(long nativeObject, int l, int t, int r, int b); + private static native void nativeSetFinalCrop(long nativeObject, int l, int t, int r, int b); + private static native void nativeSetLayerStack(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 IBinder nativeGetBuiltInDisplay(int physicalDisplayId); + private static native IBinder nativeCreateDisplay(String name, boolean secure); + private static native void nativeDestroyDisplay(IBinder displayToken); + private static native void nativeSetDisplaySurface( + IBinder displayToken, long nativeSurfaceObject); + private static native void nativeSetDisplayLayerStack( + IBinder displayToken, int layerStack); + private static native void nativeSetDisplayProjection( + 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(IBinder displayToken, int width, int height); + private static native SurfaceControl.PhysicalDisplayInfo[] nativeGetDisplayConfigs( + IBinder displayToken); + private static native int nativeGetActiveConfig(IBinder displayToken); + private static native boolean nativeSetActiveConfig(IBinder displayToken, int id); + private static native int[] nativeGetDisplayColorModes(IBinder displayToken); + 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 nativeObject, + IBinder handle, long frame); + private static native void nativeDeferTransactionUntilSurface(long nativeObject, + long surfaceObject, long frame); + private static native void nativeReparentChildren(long nativeObject, + IBinder handle); + private static native void nativeReparentChild(long nativeObject, + IBinder parentHandle, IBinder childHandle); + private static native void nativeSeverChildren(long nativeObject); + private static native void nativeSetOverrideScalingMode(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 final CloseGuard mCloseGuard = CloseGuard.get(); + private final String mName; + long mNativeObject; // package visibility only for Surface.java access + + /* flags used in constructor (keep in sync with ISurfaceComposerClient.h) */ + + /** + * Surface creation flag: Surface is created hidden + */ + 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. + * + */ + 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. + * + */ + public static final int NON_PREMULTIPLIED = 0x00000100; + + /** + * Surface creation flag: Indicates that 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 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. + */ + 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. + * + */ + 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. + */ + public static final int CURSOR_WINDOW = 0x00002000; + + /** + * Surface creation flag: Creates a normal surface. + * This is the default. + * + */ + 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. + * + */ + public static final int FX_SURFACE_DIM = 0x00020000; + + /** + * Mask used for FX values above. + * + */ + 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; + + + /* built-in physical display ids (keep in sync with ISurfaceComposer.h) + * these are different from the logical display ids used elsewhere in the framework */ + + /** + * Built-in physical display id: Main display. + * Use only with {@link SurfaceControl#getBuiltInDisplay(int)}. + */ + public static final int BUILT_IN_DISPLAY_ID_MAIN = 0; + + /** + * Built-in physical display id: Attached HDMI display. + * Use only with {@link SurfaceControl#getBuiltInDisplay(int)}. + */ + public static final int BUILT_IN_DISPLAY_ID_HDMI = 1; + + /* Display power modes * / + + /** + * Display power mode off: used while blanking the screen. + * Use only with {@link SurfaceControl#setDisplayPowerMode}. + */ + 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}. + */ + public static final int POWER_MODE_DOZE = 1; + + /** + * Display power mode normal: used while unblanking the screen. + * Use only with {@link SurfaceControl#setDisplayPowerMode}. + */ + 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}. + */ + public static final int POWER_MODE_DOZE_SUSPEND = 3; + + /** + * 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; + + /** + * 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. + * + * @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 windowType The type of the window as specified in WindowManager.java. + * @param ownerUid A unique per-app ID. + * + * @throws throws OutOfResourcesException If the SurfaceControl cannot be created. + */ + public SurfaceControl(SurfaceSession session, + String name, int w, int h, int format, int flags, int windowType, int ownerUid) + throws OutOfResourcesException { + this(session, name, w, h, format, flags, null, windowType, ownerUid); + } + + public SurfaceControl(SurfaceSession session, + String name, int w, int h, int format, int flags) + throws OutOfResourcesException { + this(session, name, w, h, format, flags, null, INVALID_WINDOW_TYPE, Binder.getCallingUid()); + } + + public SurfaceControl(SurfaceSession session, String name, int w, int h, int format, int flags, + SurfaceControl parent, int windowType, int ownerUid) + throws OutOfResourcesException { + if (session == null) { + throw new IllegalArgumentException("session must not be null"); + } + 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; + mNativeObject = nativeCreate(session, name, w, h, format, flags, + parent != null ? parent.mNativeObject : 0, windowType, ownerUid); + 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. + public SurfaceControl(SurfaceControl other) { + mName = other.mName; + mNativeObject = other.mNativeObject; + other.mCloseGuard.close(); + other.mNativeObject = 0; + mCloseGuard.open("release"); + } + + @Override + protected void finalize() throws Throwable { + try { + if (mCloseGuard != null) { + mCloseGuard.warnIfOpen(); + } + if (mNativeObject != 0) { + nativeRelease(mNativeObject); + } + } finally { + super.finalize(); + } + } + + @Override + public String toString() { + return "Surface(name=" + mName + ")"; + } + + /** + * Release the local reference to the server-side surface. + * Always call release() when you're done with a Surface. + * This will make the surface invalid. + */ + public void release() { + if (mNativeObject != 0) { + nativeRelease(mNativeObject); + mNativeObject = 0; + } + mCloseGuard.close(); + } + + /** + * Free all server-side state associated with this surface and + * release this object's reference. This method can only be + * called from the process that created the service. + */ + public void destroy() { + if (mNativeObject != 0) { + nativeDestroy(mNativeObject); + mNativeObject = 0; + } + mCloseGuard.close(); + } + + /** + * Disconnect any client still connected to the surface. + */ + 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?"); + } + + /* + * set surface parameters. + * needs to be inside open/closeTransaction block + */ + + /** start a transaction */ + public static void openTransaction() { + nativeOpenTransaction(); + } + + /** end a transaction */ + public static void closeTransaction() { + nativeCloseTransaction(false); + } + + public static void closeTransactionSync() { + nativeCloseTransaction(true); + } + + public void deferTransactionUntil(IBinder handle, long frame) { + if (frame > 0) { + nativeDeferTransactionUntil(mNativeObject, handle, frame); + } + } + + public void deferTransactionUntil(Surface barrier, long frame) { + if (frame > 0) { + nativeDeferTransactionUntilSurface(mNativeObject, barrier.mNativeObject, frame); + } + } + + public void reparentChildren(IBinder newParentHandle) { + nativeReparentChildren(mNativeObject, newParentHandle); + } + + /** Re-parents a specific child layer to a new parent */ + public void reparentChild(IBinder newParentHandle, IBinder childHandle) { + nativeReparentChild(mNativeObject, newParentHandle, childHandle); + } + + public void detachChildren() { + nativeSeverChildren(mNativeObject); + } + + public void setOverrideScalingMode(int scalingMode) { + checkNotReleased(); + nativeSetOverrideScalingMode(mNativeObject, scalingMode); + } + + public IBinder getHandle() { + return nativeGetHandle(mNativeObject); + } + + /** flag the transaction as an animation */ + public static void setAnimationTransaction() { + nativeSetAnimationTransaction(); + } + + public void setLayer(int zorder) { + checkNotReleased(); + nativeSetLayer(mNativeObject, zorder); + } + + public void setRelativeLayer(IBinder relativeTo, int zorder) { + checkNotReleased(); + nativeSetRelativeLayer(mNativeObject, relativeTo, zorder); + } + + public void setPosition(float x, float y) { + checkNotReleased(); + nativeSetPosition(mNativeObject, x, y); + } + + /** + * 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) + */ + public void setGeometryAppliesWithResize() { + checkNotReleased(); + nativeSetGeometryAppliesWithResize(mNativeObject); + } + + public void setSize(int w, int h) { + checkNotReleased(); + nativeSetSize(mNativeObject, w, h); + } + + public void hide() { + checkNotReleased(); + nativeSetFlags(mNativeObject, SURFACE_HIDDEN, SURFACE_HIDDEN); + } + + public void show() { + checkNotReleased(); + nativeSetFlags(mNativeObject, 0, SURFACE_HIDDEN); + } + + public void setTransparentRegionHint(Region region) { + checkNotReleased(); + nativeSetTransparentRegionHint(mNativeObject, region); + } + + public boolean clearContentFrameStats() { + checkNotReleased(); + return nativeClearContentFrameStats(mNativeObject); + } + + public boolean getContentFrameStats(WindowContentFrameStats outStats) { + checkNotReleased(); + return nativeGetContentFrameStats(mNativeObject, outStats); + } + + public static boolean clearAnimationFrameStats() { + return nativeClearAnimationFrameStats(); + } + + public static boolean getAnimationFrameStats(WindowAnimationFrameStats outStats) { + return nativeGetAnimationFrameStats(outStats); + } + + /** + * Sets an alpha value for the entire Surface. This value is combined with the + * per-pixel alpha. It may be used with opaque Surfaces. + */ + public void setAlpha(float alpha) { + checkNotReleased(); + nativeSetAlpha(mNativeObject, alpha); + } + + public void setMatrix(float dsdx, float dtdx, float dtdy, float dsdy) { + checkNotReleased(); + nativeSetMatrix(mNativeObject, dsdx, dtdx, dtdy, dsdy); + } + + public void setWindowCrop(Rect crop) { + checkNotReleased(); + if (crop != null) { + nativeSetWindowCrop(mNativeObject, + crop.left, crop.top, crop.right, crop.bottom); + } else { + nativeSetWindowCrop(mNativeObject, 0, 0, 0, 0); + } + } + + public void setFinalCrop(Rect crop) { + checkNotReleased(); + if (crop != null) { + nativeSetFinalCrop(mNativeObject, + crop.left, crop.top, crop.right, crop.bottom); + } else { + nativeSetFinalCrop(mNativeObject, 0, 0, 0, 0); + } + } + + public void setLayerStack(int layerStack) { + checkNotReleased(); + nativeSetLayerStack(mNativeObject, layerStack); + } + + /** + * Sets the opacity of the surface. Setting the flag is equivalent to creating the + * Surface with the {@link #OPAQUE} flag. + */ + public void setOpaque(boolean isOpaque) { + checkNotReleased(); + if (isOpaque) { + nativeSetFlags(mNativeObject, SURFACE_OPAQUE, SURFACE_OPAQUE); + } else { + nativeSetFlags(mNativeObject, 0, SURFACE_OPAQUE); + } + } + + /** + * Sets the security of the surface. Setting the flag is equivalent to creating the + * Surface with the {@link #SECURE} flag. + */ + public void setSecure(boolean isSecure) { + checkNotReleased(); + if (isSecure) { + nativeSetFlags(mNativeObject, SECURE, SECURE); + } else { + nativeSetFlags(mNativeObject, 0, SECURE); + } + } + + /* + * set display parameters. + * needs to be inside open/closeTransaction block + */ + + /** + * Describes the properties of a physical display known to surface flinger. + */ + public static final class PhysicalDisplayInfo { + public int width; + public int height; + public float refreshRate; + public float density; + public float xDpi; + public float yDpi; + public boolean secure; + public long appVsyncOffsetNanos; + public long presentationDeadlineNanos; + + public PhysicalDisplayInfo() { + } + + public PhysicalDisplayInfo(PhysicalDisplayInfo other) { + copyFrom(other); + } + + @Override + public boolean equals(Object o) { + return o instanceof PhysicalDisplayInfo && equals((PhysicalDisplayInfo)o); + } + + 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; + } + + @Override + public int hashCode() { + return 0; // don't care + } + + 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; + } + + // For debugging purposes + @Override + public String toString() { + return "PhysicalDisplayInfo{" + width + " x " + height + ", " + refreshRate + " fps, " + + "density " + density + ", " + xDpi + " x " + yDpi + " dpi, secure " + secure + + ", appVsyncOffset " + appVsyncOffsetNanos + + ", bufferDeadline " + presentationDeadlineNanos + "}"; + } + } + + public static void setDisplayPowerMode(IBinder displayToken, int mode) { + if (displayToken == null) { + throw new IllegalArgumentException("displayToken must not be null"); + } + nativeSetDisplayPowerMode(displayToken, mode); + } + + public static SurfaceControl.PhysicalDisplayInfo[] getDisplayConfigs(IBinder displayToken) { + if (displayToken == null) { + throw new IllegalArgumentException("displayToken must not be null"); + } + return nativeGetDisplayConfigs(displayToken); + } + + public static int getActiveConfig(IBinder displayToken) { + if (displayToken == null) { + throw new IllegalArgumentException("displayToken must not be null"); + } + return nativeGetActiveConfig(displayToken); + } + + public static boolean setActiveConfig(IBinder displayToken, int id) { + if (displayToken == null) { + throw new IllegalArgumentException("displayToken must not be null"); + } + return nativeSetActiveConfig(displayToken, id); + } + + public static int[] getDisplayColorModes(IBinder displayToken) { + if (displayToken == null) { + throw new IllegalArgumentException("displayToken must not be null"); + } + return nativeGetDisplayColorModes(displayToken); + } + + public static int getActiveColorMode(IBinder displayToken) { + if (displayToken == null) { + throw new IllegalArgumentException("displayToken must not be null"); + } + return nativeGetActiveColorMode(displayToken); + } + + public static boolean setActiveColorMode(IBinder displayToken, int colorMode) { + if (displayToken == null) { + throw new IllegalArgumentException("displayToken must not be null"); + } + return nativeSetActiveColorMode(displayToken, colorMode); + } + + public static void 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(displayToken, orientation, + layerStackRect.left, layerStackRect.top, layerStackRect.right, layerStackRect.bottom, + displayRect.left, displayRect.top, displayRect.right, displayRect.bottom); + } + + public static void setDisplayLayerStack(IBinder displayToken, int layerStack) { + if (displayToken == null) { + throw new IllegalArgumentException("displayToken must not be null"); + } + nativeSetDisplayLayerStack(displayToken, layerStack); + } + + public static void setDisplaySurface(IBinder displayToken, Surface surface) { + if (displayToken == null) { + throw new IllegalArgumentException("displayToken must not be null"); + } + + if (surface != null) { + synchronized (surface.mLock) { + nativeSetDisplaySurface(displayToken, surface.mNativeObject); + } + } else { + nativeSetDisplaySurface(displayToken, 0); + } + } + + public static void 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(displayToken, width, height); + } + + public static Display.HdrCapabilities getHdrCapabilities(IBinder displayToken) { + if (displayToken == null) { + throw new IllegalArgumentException("displayToken must not be null"); + } + return nativeGetHdrCapabilities(displayToken); + } + + public static IBinder createDisplay(String name, boolean secure) { + if (name == null) { + throw new IllegalArgumentException("name must not be null"); + } + return nativeCreateDisplay(name, secure); + } + + public static void destroyDisplay(IBinder displayToken) { + if (displayToken == null) { + throw new IllegalArgumentException("displayToken must not be null"); + } + nativeDestroyDisplay(displayToken); + } + + public static IBinder getBuiltInDisplay(int builtInDisplayId) { + return nativeGetBuiltInDisplay(builtInDisplayId); + } + + /** + * Copy the current screen contents into the provided {@link Surface} + * + * @param display The display to take the screenshot of. + * @param consumer The {@link Surface} to take the screenshot into. + * @param width The desired width of the returned bitmap; the raw + * screen will be scaled down to this size. + * @param height The desired height of the returned bitmap; the raw + * screen will be scaled down to this size. + * @param minLayer The lowest (bottom-most Z order) surface layer to + * include in the screenshot. + * @param maxLayer The highest (top-most Z order) surface layer to + * include in the screenshot. + * @param useIdentityTransform Replace whatever transformation (rotation, + * scaling, translation) the surface layers are currently using with the + * identity transformation while taking the screenshot. + */ + public static void screenshot(IBinder display, Surface consumer, + int width, int height, int minLayer, int maxLayer, + boolean useIdentityTransform) { + screenshot(display, consumer, new Rect(), width, height, minLayer, maxLayer, + false, useIdentityTransform); + } + + /** + * Copy the current screen contents into the provided {@link Surface} + * + * @param display The display to take the screenshot of. + * @param consumer The {@link Surface} to take the screenshot into. + * @param width The desired width of the returned bitmap; the raw + * screen will be scaled down to this size. + * @param height The desired height of the returned bitmap; the raw + * screen will be scaled down to this size. + */ + public static void screenshot(IBinder display, Surface consumer, + int width, int height) { + screenshot(display, consumer, new Rect(), width, height, 0, 0, true, false); + } + + /** + * Copy the current screen contents into the provided {@link Surface} + * + * @param display The display to take the screenshot of. + * @param consumer The {@link Surface} to take the screenshot into. + */ + public static void screenshot(IBinder display, Surface consumer) { + screenshot(display, consumer, new Rect(), 0, 0, 0, 0, true, false); + } + + /** + * Copy the current screen contents into a bitmap and return it. + * + * 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} instead, such as + * {@link SurfaceControl#screenshot(IBinder, Surface)}. + * + * @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. + * @param height The desired height of the returned bitmap; the raw + * screen will be scaled down to this size. + * @param minLayer The lowest (bottom-most Z order) surface layer to + * include in the screenshot. + * @param maxLayer The highest (top-most Z order) surface layer to + * include in the screenshot. + * @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 Bitmap containing the screen contents, or null + * if an error occurs. Make sure to call Bitmap.recycle() as soon as + * possible, once its content is not needed anymore. + */ + public static Bitmap screenshot(Rect sourceCrop, int width, int height, + int minLayer, int maxLayer, boolean useIdentityTransform, + int rotation) { + // TODO: should take the display as a parameter + IBinder displayToken = SurfaceControl.getBuiltInDisplay( + SurfaceControl.BUILT_IN_DISPLAY_ID_MAIN); + return nativeScreenshot(displayToken, sourceCrop, width, height, + minLayer, maxLayer, false, useIdentityTransform, rotation); + } + + /** + * Like {@link SurfaceControl#screenshot(Rect, int, int, int, int, boolean, int)} + * but returns a GraphicBuffer. + */ + public static GraphicBuffer screenshotToBuffer(Rect sourceCrop, int width, int height, + int minLayer, int maxLayer, boolean useIdentityTransform, + int rotation) { + IBinder displayToken = SurfaceControl.getBuiltInDisplay( + SurfaceControl.BUILT_IN_DISPLAY_ID_MAIN); + return nativeScreenshotToBuffer(displayToken, sourceCrop, width, height, + minLayer, maxLayer, false, useIdentityTransform, rotation); + } + + /** + * Like {@link SurfaceControl#screenshot(int, int, int, int, boolean)} but + * includes all Surfaces in the screenshot. + * + * @param width The desired width of the returned bitmap; the raw + * screen will be scaled down to this size. + * @param height The desired height of the returned bitmap; the raw + * screen will be scaled down to this size. + * @return Returns a Bitmap containing the screen contents, or null + * if an error occurs. Make sure to call Bitmap.recycle() as soon as + * possible, once its content is not needed anymore. + */ + public static Bitmap screenshot(int width, int height) { + // TODO: should take the display as a parameter + IBinder displayToken = SurfaceControl.getBuiltInDisplay( + SurfaceControl.BUILT_IN_DISPLAY_ID_MAIN); + return nativeScreenshot(displayToken, new Rect(), width, height, 0, 0, true, + false, Surface.ROTATION_0); + } + + private static void screenshot(IBinder display, Surface consumer, Rect sourceCrop, + int width, int height, int minLayer, int maxLayer, boolean allLayers, + boolean useIdentityTransform) { + if (display == null) { + throw new IllegalArgumentException("displayToken must not be null"); + } + if (consumer == null) { + throw new IllegalArgumentException("consumer must not be null"); + } + nativeScreenshot(display, consumer, sourceCrop, width, height, + minLayer, maxLayer, allLayers, useIdentityTransform); + } +} |