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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /third_party/libwebrtc/sdk/android/api/org/webrtc/TextureBufferImpl.java | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/libwebrtc/sdk/android/api/org/webrtc/TextureBufferImpl.java')
-rw-r--r-- | third_party/libwebrtc/sdk/android/api/org/webrtc/TextureBufferImpl.java | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/third_party/libwebrtc/sdk/android/api/org/webrtc/TextureBufferImpl.java b/third_party/libwebrtc/sdk/android/api/org/webrtc/TextureBufferImpl.java new file mode 100644 index 0000000000..43470d6e39 --- /dev/null +++ b/third_party/libwebrtc/sdk/android/api/org/webrtc/TextureBufferImpl.java @@ -0,0 +1,197 @@ +/* + * Copyright 2017 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +package org.webrtc; + +import android.graphics.Matrix; +import android.os.Handler; +import androidx.annotation.Nullable; + +/** + * Android texture buffer that glues together the necessary information together with a generic + * release callback. ToI420() is implemented by providing a Handler and a YuvConverter. + */ +public class TextureBufferImpl implements VideoFrame.TextureBuffer { + interface RefCountMonitor { + void onRetain(TextureBufferImpl textureBuffer); + void onRelease(TextureBufferImpl textureBuffer); + void onDestroy(TextureBufferImpl textureBuffer); + } + + // This is the full resolution the texture has in memory after applying the transformation matrix + // that might include cropping. This resolution is useful to know when sampling the texture to + // avoid downscaling artifacts. + private final int unscaledWidth; + private final int unscaledHeight; + // This is the resolution that has been applied after cropAndScale(). + private final int width; + private final int height; + private final Type type; + private final int id; + private final Matrix transformMatrix; + private final Handler toI420Handler; + private final YuvConverter yuvConverter; + private final RefCountDelegate refCountDelegate; + private final RefCountMonitor refCountMonitor; + + public TextureBufferImpl(int width, int height, Type type, int id, Matrix transformMatrix, + Handler toI420Handler, YuvConverter yuvConverter, @Nullable Runnable releaseCallback) { + this(width, height, width, height, type, id, transformMatrix, toI420Handler, yuvConverter, + new RefCountMonitor() { + @Override + public void onRetain(TextureBufferImpl textureBuffer) {} + + @Override + public void onRelease(TextureBufferImpl textureBuffer) {} + + @Override + public void onDestroy(TextureBufferImpl textureBuffer) { + if (releaseCallback != null) { + releaseCallback.run(); + } + } + }); + } + + TextureBufferImpl(int width, int height, Type type, int id, Matrix transformMatrix, + Handler toI420Handler, YuvConverter yuvConverter, RefCountMonitor refCountMonitor) { + this(width, height, width, height, type, id, transformMatrix, toI420Handler, yuvConverter, + refCountMonitor); + } + + private TextureBufferImpl(int unscaledWidth, int unscaledHeight, int width, int height, Type type, + int id, Matrix transformMatrix, Handler toI420Handler, YuvConverter yuvConverter, + RefCountMonitor refCountMonitor) { + this.unscaledWidth = unscaledWidth; + this.unscaledHeight = unscaledHeight; + this.width = width; + this.height = height; + this.type = type; + this.id = id; + this.transformMatrix = transformMatrix; + this.toI420Handler = toI420Handler; + this.yuvConverter = yuvConverter; + this.refCountDelegate = new RefCountDelegate(() -> refCountMonitor.onDestroy(this)); + this.refCountMonitor = refCountMonitor; + } + + @Override + public VideoFrame.TextureBuffer.Type getType() { + return type; + } + + @Override + public int getTextureId() { + return id; + } + + @Override + public Matrix getTransformMatrix() { + return transformMatrix; + } + + @Override + public int getWidth() { + return width; + } + + @Override + public int getHeight() { + return height; + } + + @Override + public VideoFrame.I420Buffer toI420() { + return ThreadUtils.invokeAtFrontUninterruptibly( + toI420Handler, () -> yuvConverter.convert(this)); + } + + @Override + public void retain() { + refCountMonitor.onRetain(this); + refCountDelegate.retain(); + } + + @Override + public void release() { + refCountMonitor.onRelease(this); + refCountDelegate.release(); + } + + @Override + public VideoFrame.Buffer cropAndScale( + int cropX, int cropY, int cropWidth, int cropHeight, int scaleWidth, int scaleHeight) { + final Matrix cropAndScaleMatrix = new Matrix(); + // In WebRTC, Y=0 is the top row, while in OpenGL Y=0 is the bottom row. This means that the Y + // direction is effectively reversed. + final int cropYFromBottom = height - (cropY + cropHeight); + cropAndScaleMatrix.preTranslate(cropX / (float) width, cropYFromBottom / (float) height); + cropAndScaleMatrix.preScale(cropWidth / (float) width, cropHeight / (float) height); + + return applyTransformMatrix(cropAndScaleMatrix, + Math.round(unscaledWidth * cropWidth / (float) width), + Math.round(unscaledHeight * cropHeight / (float) height), scaleWidth, scaleHeight); + } + + @Override + public int getUnscaledWidth() { + return unscaledWidth; + } + + @Override + public int getUnscaledHeight() { + return unscaledHeight; + } + + public Handler getToI420Handler() { + return toI420Handler; + } + + public YuvConverter getYuvConverter() { + return yuvConverter; + } + + /** + * Create a new TextureBufferImpl with an applied transform matrix and a new size. The + * existing buffer is unchanged. The given transform matrix is applied first when texture + * coordinates are still in the unmodified [0, 1] range. + */ + @Override + public TextureBufferImpl applyTransformMatrix( + Matrix transformMatrix, int newWidth, int newHeight) { + return applyTransformMatrix(transformMatrix, /* unscaledWidth= */ newWidth, + /* unscaledHeight= */ newHeight, /* scaledWidth= */ newWidth, + /* scaledHeight= */ newHeight); + } + + private TextureBufferImpl applyTransformMatrix(Matrix transformMatrix, int unscaledWidth, + int unscaledHeight, int scaledWidth, int scaledHeight) { + final Matrix newMatrix = new Matrix(this.transformMatrix); + newMatrix.preConcat(transformMatrix); + retain(); + return new TextureBufferImpl(unscaledWidth, unscaledHeight, scaledWidth, scaledHeight, type, id, + newMatrix, toI420Handler, yuvConverter, new RefCountMonitor() { + @Override + public void onRetain(TextureBufferImpl textureBuffer) { + refCountMonitor.onRetain(TextureBufferImpl.this); + } + + @Override + public void onRelease(TextureBufferImpl textureBuffer) { + refCountMonitor.onRelease(TextureBufferImpl.this); + } + + @Override + public void onDestroy(TextureBufferImpl textureBuffer) { + release(); + } + }); + } +} |