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Unified Diff: java/org/libjpegturbo/turbojpeg/TJCustomFilter.java

Issue 1934113002: Update libjpeg_turbo to 1.4.90 from https://github.com/libjpeg-turbo/ (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/libjpeg_turbo.git@master
Patch Set: Created 4 years, 8 months ago
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Index: java/org/libjpegturbo/turbojpeg/TJCustomFilter.java
diff --git a/java/org/libjpegturbo/turbojpeg/TJCustomFilter.java b/java/org/libjpegturbo/turbojpeg/TJCustomFilter.java
new file mode 100644
index 0000000000000000000000000000000000000000..9a34587a182a61a73d9311a57c87ded3530a00c1
--- /dev/null
+++ b/java/org/libjpegturbo/turbojpeg/TJCustomFilter.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C)2011, 2013 D. R. Commander. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * - Neither the name of the libjpeg-turbo Project nor the names of its
+ * contributors may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS",
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package org.libjpegturbo.turbojpeg;
+
+import java.awt.*;
+import java.nio.*;
+
+/**
+ * Custom filter callback interface
+ */
+public interface TJCustomFilter {
+
+ /**
+ * A callback function that can be used to modify the DCT coefficients after
+ * they are losslessly transformed but before they are transcoded to a new
+ * JPEG image. This allows for custom filters or other transformations to be
+ * applied in the frequency domain.
+ *
+ * @param coeffBuffer a buffer containing transformed DCT coefficients.
+ * (NOTE: this buffer is not guaranteed to be valid once the callback
+ * returns, so applications wishing to hand off the DCT coefficients to
+ * another function or library should make a copy of them within the body of
+ * the callback.)
+ *
+ * @param bufferRegion rectangle containing the width and height of
+ * <code>coeffBuffer</code> as well as its offset relative to the component
+ * plane. TurboJPEG implementations may choose to split each component plane
+ * into multiple DCT coefficient buffers and call the callback function once
+ * for each buffer.
+ *
+ * @param planeRegion rectangle containing the width and height of the
+ * component plane to which <code>coeffBuffer</code> belongs
+ *
+ * @param componentID ID number of the component plane to which
+ * <code>coeffBuffer</code> belongs (Y, Cb, and Cr have, respectively, ID's
+ * of 0, 1, and 2 in typical JPEG images.)
+ *
+ * @param transformID ID number of the transformed image to which
+ * <code>coeffBuffer</code> belongs. This is the same as the index of the
+ * transform in the <code>transforms</code> array that was passed to {@link
+ * TJTransformer#transform TJTransformer.transform()}.
+ *
+ * @param transform a {@link TJTransform} instance that specifies the
+ * parameters and/or cropping region for this transform
+ */
+ void customFilter(ShortBuffer coeffBuffer, Rectangle bufferRegion,
+ Rectangle planeRegion, int componentID, int transformID,
+ TJTransform transform)
+ throws TJException;
+}

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