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Re-work TJBUFSIZE() to take into account the level of chrominance subsampling

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DRC
2011-07-12 03:17:23 +00:00
parent 2bfd5d8c7d
commit 489864aefa
41 changed files with 268 additions and 180 deletions
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13
java/org/libjpegturbo/turbojpeg/TJ.java
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@@ -271,16 +271,21 @@ final public class TJ {
/**
* Returns the maximum size of the buffer (in bytes) required to hold a JPEG
* image with the given width and height.
* image with the given width and height, and level of chrominance
* subsampling.
*
* @param width the width (in pixels) of the JPEG image
*
* @param height the height (in pixels) of the JPEG image
*
* @param jpegSubsamp the level of chrominance subsampling to be used when
* generating the JPEG image (one of {@link TJ TJ.SAMP_*})
*
* @return the maximum size of the buffer (in bytes) required to hold a JPEG
* image with the given width and height
* image with the given width and height, and level of chrominance
* subsampling
*/
public native static int bufSize(int width, int height)
public native static int bufSize(int width, int height, int jpegSubsamp)
throws Exception;
/**
@@ -292,7 +297,7 @@ final public class TJ {
* @param height the height (in pixels) of the YUV image
*
* @param subsamp the level of chrominance subsampling used in the YUV
* image
* image (one of {@link TJ TJ.SAMP_*})
*
* @return the size of the buffer (in bytes) required to hold a YUV planar
* image with the given width, height, and level of chrominance subsampling