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-rw-r--r--core/java/android/view/ThreadedRenderer.java6
-rw-r--r--core/jni/android_view_ThreadedRenderer.cpp10
-rw-r--r--graphics/java/android/graphics/PixelCopy.java104
-rw-r--r--libs/hwui/Android.mk1
-rw-r--r--libs/hwui/Readback.cpp159
-rw-r--r--libs/hwui/Readback.h34
-rw-r--r--libs/hwui/renderthread/RenderProxy.cpp15
-rw-r--r--libs/hwui/renderthread/RenderProxy.h2
-rw-r--r--tests/HwAccelerationTest/AndroidManifest.xml9
-rw-r--r--tests/HwAccelerationTest/src/com/android/test/hwui/GetBitmapSurfaceViewActivity.java111
-rw-r--r--tests/HwAccelerationTest/src/com/android/test/hwui/HardwareCanvasSurfaceViewActivity.java57
11 files changed, 503 insertions, 5 deletions
diff --git a/core/java/android/view/ThreadedRenderer.java b/core/java/android/view/ThreadedRenderer.java
index f44d4c1ac9df..206ba1664407 100644
--- a/core/java/android/view/ThreadedRenderer.java
+++ b/core/java/android/view/ThreadedRenderer.java
@@ -903,6 +903,10 @@ public final class ThreadedRenderer {
nSerializeDisplayListTree(mNativeProxy);
}
+ public static boolean copySurfaceInto(Surface surface, Bitmap bitmap) {
+ return nCopySurfaceInto(surface, bitmap);
+ }
+
@Override
protected void finalize() throws Throwable {
try {
@@ -1040,4 +1044,6 @@ public final class ThreadedRenderer {
private static native long nAddFrameMetricsObserver(long nativeProxy, FrameMetricsObserver observer);
private static native void nRemoveFrameMetricsObserver(long nativeProxy, long nativeObserver);
+
+ private static native boolean nCopySurfaceInto(Surface surface, Bitmap bitmap);
}
diff --git a/core/jni/android_view_ThreadedRenderer.cpp b/core/jni/android_view_ThreadedRenderer.cpp
index ef45c87277ae..68c818e92e5c 100644
--- a/core/jni/android_view_ThreadedRenderer.cpp
+++ b/core/jni/android_view_ThreadedRenderer.cpp
@@ -669,6 +669,14 @@ static void android_view_ThreadedRenderer_setContentDrawBounds(JNIEnv* env,
proxy->setContentDrawBounds(left, top, right, bottom);
}
+static jboolean android_view_ThreadedRenderer_copySurfaceInto(JNIEnv* env,
+ jobject clazz, jobject jsurface, jobject jbitmap) {
+ SkBitmap bitmap;
+ GraphicsJNI::getSkBitmap(env, jbitmap, &bitmap);
+ sp<Surface> surface = android_view_Surface_getSurface(env, jsurface);
+ return RenderProxy::copySurfaceInto(surface, &bitmap);
+}
+
// ----------------------------------------------------------------------------
// FrameMetricsObserver
// ----------------------------------------------------------------------------
@@ -775,6 +783,8 @@ static const JNINativeMethod gMethods[] = {
{ "nRemoveFrameMetricsObserver",
"(JJ)V",
(void*)android_view_ThreadedRenderer_removeFrameMetricsObserver },
+ { "nCopySurfaceInto", "(Landroid/view/Surface;Landroid/graphics/Bitmap;)Z",
+ (void*)android_view_ThreadedRenderer_copySurfaceInto },
};
int register_android_view_ThreadedRenderer(JNIEnv* env) {
diff --git a/graphics/java/android/graphics/PixelCopy.java b/graphics/java/android/graphics/PixelCopy.java
new file mode 100644
index 000000000000..c5991264e555
--- /dev/null
+++ b/graphics/java/android/graphics/PixelCopy.java
@@ -0,0 +1,104 @@
+package android.graphics;
+
+import android.annotation.NonNull;
+import android.os.Handler;
+import android.view.Surface;
+import android.view.SurfaceView;
+import android.view.ThreadedRenderer;
+
+/**
+ * Provides a mechanisms to issue pixel copy requests to allow for copy
+ * operations from {@link Surface} to {@link Bitmap}
+ *
+ * @hide
+ */
+public final class PixelCopy {
+ /**
+ * Contains the result of a pixel copy request
+ */
+ public static final class Response {
+ /**
+ * Indicates whether or not the copy request completed successfully.
+ * If this is true, then {@link #bitmap} contains the result of the copy.
+ * If this is false, {@link #bitmap} is unmodified from the originally
+ * passed destination.
+ *
+ * For example a request might fail if the source is protected content
+ * so copies are not allowed. Similarly if the source has nothing to
+ * copy from, because either no frames have been produced yet or because
+ * it has already been destroyed, then this will be false.
+ */
+ public boolean success;
+
+ /**
+ * The output bitmap. This is always the same object that was passed
+ * to request() as the 'dest' bitmap. If {@link #success} is true this
+ * contains a copy of the pixels of the source object. If {@link #success}
+ * is false then this is unmodified.
+ */
+ @NonNull
+ public Bitmap bitmap;
+ }
+
+ public interface OnPixelCopyFinished {
+ /**
+ * Callback for when a pixel copy request has completed. This will be called
+ * regardless of whether the copy succeeded or failed.
+ *
+ * @param response Contains the result of the copy request which includes
+ * whether or not the copy was successful.
+ */
+ void onPixelCopyFinished(PixelCopy.Response response);
+ }
+
+ /**
+ * Requests for the display content of a {@link SurfaceView} to be copied
+ * into a provided {@link Bitmap}.
+ *
+ * The contents of the source will be scaled to fit exactly inside the bitmap.
+ * The pixel format of the source buffer will be converted, as part of the copy,
+ * to fit the the bitmap's {@link Bitmap.Config}. The most recently queued buffer
+ * in the SurfaceView's Surface will be used as the source of the copy.
+ *
+ * @param source The source from which to copy
+ * @param dest The destination of the copy. The source will be scaled to
+ * match the width, height, and format of this bitmap.
+ * @param listener Callback for when the pixel copy request completes
+ * @param listenerThread The callback will be invoked on this Handler when
+ * the copy is finished.
+ */
+ public static void request(@NonNull SurfaceView source, @NonNull Bitmap dest,
+ @NonNull OnPixelCopyFinished listener, @NonNull Handler listenerThread) {
+ request(source.getHolder().getSurface(), dest, listener, listenerThread);
+ }
+
+ /**
+ * Requests a copy of the pixels from a {@link Surface} to be copied into
+ * a provided {@link Bitmap}.
+ *
+ * The contents of the source will be scaled to fit exactly inside the bitmap.
+ * The pixel format of the source buffer will be converted, as part of the copy,
+ * to fit the the bitmap's {@link Bitmap.Config}. The most recently queued buffer
+ * in the Surface will be used as the source of the copy.
+ *
+ * @param source The source from which to copy
+ * @param dest The destination of the copy. The source will be scaled to
+ * match the width, height, and format of this bitmap.
+ * @param listener Callback for when the pixel copy request completes
+ * @param listenerThread The callback will be invoked on this Handler when
+ * the copy is finished.
+ */
+ public static void request(@NonNull Surface source, @NonNull Bitmap dest,
+ @NonNull OnPixelCopyFinished listener, @NonNull Handler listenerThread) {
+ // TODO: Make this actually async and fast and cool and stuff
+ final PixelCopy.Response response = new PixelCopy.Response();
+ response.success = ThreadedRenderer.copySurfaceInto(source, dest);
+ response.bitmap = dest;
+ listenerThread.post(new Runnable() {
+ @Override
+ public void run() {
+ listener.onPixelCopyFinished(response);
+ }
+ });
+ }
+}
diff --git a/libs/hwui/Android.mk b/libs/hwui/Android.mk
index 0606b0b1a158..717a1e6eacc4 100644
--- a/libs/hwui/Android.mk
+++ b/libs/hwui/Android.mk
@@ -84,6 +84,7 @@ hwui_src_files := \
Properties.cpp \
PropertyValuesHolder.cpp \
PropertyValuesAnimatorSet.cpp \
+ Readback.cpp \
RenderBufferCache.cpp \
RenderNode.cpp \
RenderProperties.cpp \
diff --git a/libs/hwui/Readback.cpp b/libs/hwui/Readback.cpp
new file mode 100644
index 000000000000..d7df77c2f3ed
--- /dev/null
+++ b/libs/hwui/Readback.cpp
@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+#include "Readback.h"
+
+#include "Caches.h"
+#include "Image.h"
+#include "GlopBuilder.h"
+#include "renderstate/RenderState.h"
+#include "renderthread/EglManager.h"
+#include "utils/GLUtils.h"
+
+#include <GLES2/gl2.h>
+#include <ui/Fence.h>
+#include <ui/GraphicBuffer.h>
+
+namespace android {
+namespace uirenderer {
+
+bool Readback::copySurfaceInto(renderthread::RenderThread& renderThread,
+ Surface& surface, SkBitmap* bitmap) {
+ // TODO: Clean this up and unify it with LayerRenderer::copyLayer,
+ // of which most of this is copied from.
+ renderThread.eglManager().initialize();
+
+ Caches& caches = Caches::getInstance();
+ RenderState& renderState = renderThread.renderState();
+ int destWidth = bitmap->width();
+ int destHeight = bitmap->height();
+ if (destWidth > caches.maxTextureSize
+ || destHeight > caches.maxTextureSize) {
+ ALOGW("Can't copy surface into bitmap, %dx%d exceeds max texture size %d",
+ destWidth, destHeight, caches.maxTextureSize);
+ return false;
+ }
+ GLuint fbo = renderState.createFramebuffer();
+ if (!fbo) {
+ ALOGW("Could not obtain an FBO");
+ return false;
+ }
+
+ SkAutoLockPixels alp(*bitmap);
+
+ GLuint texture;
+
+ GLenum format;
+ GLenum type;
+
+ switch (bitmap->colorType()) {
+ case kAlpha_8_SkColorType:
+ format = GL_ALPHA;
+ type = GL_UNSIGNED_BYTE;
+ break;
+ case kRGB_565_SkColorType:
+ format = GL_RGB;
+ type = GL_UNSIGNED_SHORT_5_6_5;
+ break;
+ case kARGB_4444_SkColorType:
+ format = GL_RGBA;
+ type = GL_UNSIGNED_SHORT_4_4_4_4;
+ break;
+ case kN32_SkColorType:
+ default:
+ format = GL_RGBA;
+ type = GL_UNSIGNED_BYTE;
+ break;
+ }
+
+ renderState.bindFramebuffer(fbo);
+
+ // TODO: Use layerPool or something to get this maybe? But since we
+ // need explicit format control we can't currently.
+
+ // Setup the rendertarget
+ glGenTextures(1, &texture);
+ caches.textureState().activateTexture(0);
+ caches.textureState().bindTexture(texture);
+ glPixelStorei(GL_PACK_ALIGNMENT, bitmap->bytesPerPixel());
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+ glTexImage2D(GL_TEXTURE_2D, 0, format, destWidth, destHeight,
+ 0, format, type, nullptr);
+ glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
+ GL_TEXTURE_2D, texture, 0);
+
+ // Setup the source
+ sp<GraphicBuffer> sourceBuffer;
+ sp<Fence> sourceFence;
+ // FIXME: Waiting on an API from libgui for this
+ // surface.getLastQueuedBuffer(&sourceBuffer, &sourceFence);
+ if (!sourceBuffer.get()) {
+ ALOGW("Surface doesn't have any previously queued frames, nothing to readback from");
+ return false;
+ }
+ int err = sourceFence->wait(500 /* ms */);
+ if (err != NO_ERROR) {
+ ALOGE("Timeout (500ms) exceeded waiting for buffer fence, abandoning readback attempt");
+ return false;
+ }
+ Image sourceImage(sourceBuffer);
+ if (!sourceImage.getTexture()) {
+ ALOGW("Failed to make an EGLImage from the GraphicBuffer");
+ return false;
+ }
+ Texture sourceTexture(caches);
+ sourceTexture.wrap(sourceImage.getTexture(),
+ sourceBuffer->getWidth(), sourceBuffer->getHeight(), 0 /* total lie */);
+
+ {
+ // Draw & readback
+ renderState.setViewport(destWidth, destHeight);
+ renderState.scissor().setEnabled(false);
+ renderState.blend().syncEnabled();
+ renderState.stencil().disable();
+
+ Rect destRect(destWidth, destHeight);
+ Glop glop;
+ GlopBuilder(renderState, caches, &glop)
+ .setRoundRectClipState(nullptr)
+ .setMeshTexturedUvQuad(nullptr, Rect(0, 1, 1, 0)) // TODO: simplify with VBO
+ .setFillLayer(sourceTexture, nullptr, 1.0f, SkXfermode::kSrc_Mode,
+ Blend::ModeOrderSwap::NoSwap)
+ .setTransform(Matrix4::identity(), TransformFlags::None)
+ .setModelViewMapUnitToRect(destRect)
+ .build();
+ Matrix4 ortho;
+ ortho.loadOrtho(destWidth, destHeight);
+ renderState.render(glop, ortho);
+
+ glReadPixels(0, 0, bitmap->width(), bitmap->height(), format,
+ type, bitmap->getPixels());
+ }
+
+ // Cleanup
+ caches.textureState().deleteTexture(texture);
+ renderState.deleteFramebuffer(fbo);
+
+ GL_CHECKPOINT(MODERATE);
+
+ return true;
+}
+
+} // namespace uirenderer
+} // namespace android
diff --git a/libs/hwui/Readback.h b/libs/hwui/Readback.h
new file mode 100644
index 000000000000..ea03c829f492
--- /dev/null
+++ b/libs/hwui/Readback.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+#pragma once
+
+#include "renderthread/RenderThread.h"
+
+#include <SkBitmap.h>
+#include <gui/Surface.h>
+
+namespace android {
+namespace uirenderer {
+
+class Readback {
+public:
+ static bool copySurfaceInto(renderthread::RenderThread& renderThread,
+ Surface& surface, SkBitmap* bitmap);
+};
+
+} // namespace uirenderer
+} // namespace android
diff --git a/libs/hwui/renderthread/RenderProxy.cpp b/libs/hwui/renderthread/RenderProxy.cpp
index c5a2dc7bd8ce..5e37856ecce9 100644
--- a/libs/hwui/renderthread/RenderProxy.cpp
+++ b/libs/hwui/renderthread/RenderProxy.cpp
@@ -19,6 +19,7 @@
#include "DeferredLayerUpdater.h"
#include "DisplayList.h"
#include "LayerRenderer.h"
+#include "Readback.h"
#include "Rect.h"
#include "renderthread/CanvasContext.h"
#include "renderthread/RenderTask.h"
@@ -616,6 +617,20 @@ void RenderProxy::removeFrameMetricsObserver(FrameMetricsObserver* observer) {
post(task);
}
+CREATE_BRIDGE3(copySurfaceInto, RenderThread* thread,
+ Surface* surface, SkBitmap* bitmap) {
+ return (void*) Readback::copySurfaceInto(*args->thread,
+ *args->surface, args->bitmap);
+}
+
+bool RenderProxy::copySurfaceInto(sp<Surface>& surface, SkBitmap* bitmap) {
+ SETUP_TASK(copySurfaceInto);
+ args->bitmap = bitmap;
+ args->surface = surface.get();
+ args->thread = &RenderThread::getInstance();
+ return (bool) staticPostAndWait(task);
+}
+
void RenderProxy::post(RenderTask* task) {
mRenderThread.queue(task);
}
diff --git a/libs/hwui/renderthread/RenderProxy.h b/libs/hwui/renderthread/RenderProxy.h
index 32d3283bd814..c39319da4b39 100644
--- a/libs/hwui/renderthread/RenderProxy.h
+++ b/libs/hwui/renderthread/RenderProxy.h
@@ -127,6 +127,8 @@ public:
ANDROID_API void removeFrameMetricsObserver(FrameMetricsObserver* observer);
ANDROID_API long getDroppedFrameReportCount();
+ ANDROID_API static bool copySurfaceInto(sp<Surface>& surface, SkBitmap* bitmap);
+
private:
RenderThread& mRenderThread;
CanvasContext* mContext;
diff --git a/tests/HwAccelerationTest/AndroidManifest.xml b/tests/HwAccelerationTest/AndroidManifest.xml
index 18fd98528855..b9e9ac856185 100644
--- a/tests/HwAccelerationTest/AndroidManifest.xml
+++ b/tests/HwAccelerationTest/AndroidManifest.xml
@@ -374,6 +374,15 @@
</activity>
<activity
+ android:name="GetBitmapSurfaceViewActivity"
+ android:label="SurfaceView/GetBitmap with Camera source">
+ <intent-filter>
+ <action android:name="android.intent.action.MAIN" />
+ <category android:name="com.android.test.hwui.TEST" />
+ </intent-filter>
+ </activity>
+
+ <activity
android:name="GLTextureViewActivity"
android:label="TextureView/OpenGL">
<intent-filter>
diff --git a/tests/HwAccelerationTest/src/com/android/test/hwui/GetBitmapSurfaceViewActivity.java b/tests/HwAccelerationTest/src/com/android/test/hwui/GetBitmapSurfaceViewActivity.java
new file mode 100644
index 000000000000..d3cd7db7d46a
--- /dev/null
+++ b/tests/HwAccelerationTest/src/com/android/test/hwui/GetBitmapSurfaceViewActivity.java
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2016 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 com.android.test.hwui;
+
+import android.app.Activity;
+import android.graphics.Bitmap;
+import android.graphics.PixelCopy;
+import android.graphics.PixelCopy.OnPixelCopyFinished;
+import android.graphics.PixelCopy.Response;
+import android.hardware.Camera;
+import android.os.Bundle;
+import android.os.Environment;
+import android.view.Gravity;
+import android.view.SurfaceHolder;
+import android.view.SurfaceView;
+import android.view.View;
+import android.widget.Button;
+import android.widget.FrameLayout;
+import android.widget.Toast;
+
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+public class GetBitmapSurfaceViewActivity extends Activity implements SurfaceHolder.Callback {
+ private Camera mCamera;
+ private SurfaceView mSurfaceView;
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+
+ FrameLayout content = new FrameLayout(this);
+
+ mSurfaceView = new SurfaceView(this);
+ mSurfaceView.getHolder().addCallback(this);
+
+ Button button = new Button(this);
+ button.setText("Copy bitmap to /sdcard/surfaceview.png");
+ button.setOnClickListener((View v) -> {
+ Bitmap b = Bitmap.createBitmap(
+ mSurfaceView.getWidth(),
+ mSurfaceView.getHeight(),
+ Bitmap.Config.ARGB_8888);
+ PixelCopy.request(mSurfaceView, b,
+ mOnCopyFinished, mSurfaceView.getHandler());
+ });
+
+ content.addView(mSurfaceView, new FrameLayout.LayoutParams(500, 400, Gravity.CENTER));
+ content.addView(button, new FrameLayout.LayoutParams(
+ FrameLayout.LayoutParams.WRAP_CONTENT, FrameLayout.LayoutParams.WRAP_CONTENT,
+ Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM));
+ setContentView(content);
+ }
+
+ private final OnPixelCopyFinished mOnCopyFinished = new OnPixelCopyFinished() {
+ @Override
+ public void onPixelCopyFinished(Response response) {
+ if (!response.success) {
+ Toast.makeText(GetBitmapSurfaceViewActivity.this,
+ "Failed to copy", Toast.LENGTH_SHORT).show();
+ return;
+ }
+ try {
+ try (FileOutputStream out = new FileOutputStream(
+ Environment.getExternalStorageDirectory() + "/surfaceview.png");) {
+ response.bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
+ }
+ } catch (Exception e) {
+ // Ignore
+ }
+ }
+ };
+
+ @Override
+ public void surfaceCreated(SurfaceHolder holder) {
+ mCamera = Camera.open();
+
+ try {
+ mCamera.setPreviewSurface(holder.getSurface());
+ } catch (IOException t) {
+ android.util.Log.e("TextureView", "Cannot set preview texture target!", t);
+ }
+
+ mCamera.startPreview();
+ }
+
+ @Override
+ public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
+ }
+
+ @Override
+ public void surfaceDestroyed(SurfaceHolder holder) {
+ mCamera.stopPreview();
+ mCamera.release();
+ }
+}
diff --git a/tests/HwAccelerationTest/src/com/android/test/hwui/HardwareCanvasSurfaceViewActivity.java b/tests/HwAccelerationTest/src/com/android/test/hwui/HardwareCanvasSurfaceViewActivity.java
index b1431c586631..5c30faba3d18 100644
--- a/tests/HwAccelerationTest/src/com/android/test/hwui/HardwareCanvasSurfaceViewActivity.java
+++ b/tests/HwAccelerationTest/src/com/android/test/hwui/HardwareCanvasSurfaceViewActivity.java
@@ -17,18 +17,29 @@
package com.android.test.hwui;
import android.app.Activity;
+import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
+import android.graphics.PixelCopy;
+import android.graphics.PixelCopy.OnPixelCopyFinished;
+import android.graphics.PixelCopy.Response;
import android.graphics.PorterDuff;
import android.os.Bundle;
-import android.view.Gravity;
+import android.os.Environment;
import android.view.Surface;
import android.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.SurfaceView;
+import android.view.View;
+import android.widget.Button;
import android.widget.FrameLayout;
+import android.widget.LinearLayout;
+import android.widget.Toast;
+
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
-@SuppressWarnings({"UnusedDeclaration"})
public class HardwareCanvasSurfaceViewActivity extends Activity implements Callback {
private SurfaceView mSurfaceView;
private HardwareCanvasSurfaceViewActivity.RenderingThread mThread;
@@ -42,13 +53,49 @@ public class HardwareCanvasSurfaceViewActivity extends Activity implements Callb
mSurfaceView = new SurfaceView(this);
mSurfaceView.getHolder().addCallback(this);
- content.addView(mSurfaceView, new FrameLayout.LayoutParams(
- FrameLayout.LayoutParams.MATCH_PARENT,
+ Button button = new Button(this);
+ button.setText("Copy bitmap to /sdcard/surfaceview.png");
+ button.setOnClickListener((View v) -> {
+ Bitmap b = Bitmap.createBitmap(
+ mSurfaceView.getWidth(),
+ mSurfaceView.getHeight(),
+ Bitmap.Config.ARGB_8888);
+ PixelCopy.request(mSurfaceView, b,
+ mOnCopyFinished, mSurfaceView.getHandler());
+ });
+
+ LinearLayout layout = new LinearLayout(this);
+ layout.setOrientation(LinearLayout.VERTICAL);
+ layout.addView(button, LinearLayout.LayoutParams.MATCH_PARENT,
+ LinearLayout.LayoutParams.WRAP_CONTENT);
+ layout.addView(mSurfaceView, LinearLayout.LayoutParams.MATCH_PARENT,
+ LinearLayout.LayoutParams.MATCH_PARENT);
+
+ content.addView(layout, new FrameLayout.LayoutParams(
FrameLayout.LayoutParams.MATCH_PARENT,
- Gravity.CENTER));
+ FrameLayout.LayoutParams.MATCH_PARENT));
setContentView(content);
}
+ private final OnPixelCopyFinished mOnCopyFinished = new OnPixelCopyFinished() {
+ @Override
+ public void onPixelCopyFinished(Response response) {
+ if (!response.success) {
+ Toast.makeText(HardwareCanvasSurfaceViewActivity.this,
+ "Failed to copy", Toast.LENGTH_SHORT).show();
+ return;
+ }
+ try {
+ try (FileOutputStream out = new FileOutputStream(
+ Environment.getExternalStorageDirectory() + "/surfaceview.png");) {
+ response.bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
+ }
+ } catch (Exception e) {
+ // Ignore
+ }
+ }
+ };
+
@Override
public void surfaceCreated(SurfaceHolder holder) {
mThread = new RenderingThread(holder.getSurface());
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-10-20 23:58:38 +0000