mirror of
https://github.com/simtactics/mysimulation.git
synced 2025-03-23 01:42:24 +00:00
350 lines
12 KiB
Java
350 lines
12 KiB
Java
/*
|
|
* Copyright (C)2011 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;
|
|
|
|
/**
|
|
* TurboJPEG utility class (cannot be instantiated)
|
|
*/
|
|
final public class TJ {
|
|
|
|
|
|
/**
|
|
* The number of chrominance subsampling options
|
|
*/
|
|
final public static int NUMSAMP = 5;
|
|
/**
|
|
* 4:4:4 chrominance subsampling (no chrominance subsampling). The JPEG
|
|
* or YUV image will contain one chrominance component for every pixel in the
|
|
* source image.
|
|
*/
|
|
final public static int SAMP_444 = 0;
|
|
/**
|
|
* 4:2:2 chrominance subsampling. The JPEG or YUV image will contain one
|
|
* chrominance component for every 2x1 block of pixels in the source image.
|
|
*/
|
|
final public static int SAMP_422 = 1;
|
|
/**
|
|
* 4:2:0 chrominance subsampling. The JPEG or YUV image will contain one
|
|
* chrominance component for every 2x2 block of pixels in the source image.
|
|
*/
|
|
final public static int SAMP_420 = 2;
|
|
/**
|
|
* Grayscale. The JPEG or YUV image will contain no chrominance components.
|
|
*/
|
|
final public static int SAMP_GRAY = 3;
|
|
/**
|
|
* 4:4:0 chrominance subsampling. The JPEG or YUV image will contain one
|
|
* chrominance component for every 1x2 block of pixels in the source image.
|
|
*/
|
|
final public static int SAMP_440 = 4;
|
|
|
|
|
|
/**
|
|
* Returns the MCU block width for the given level of chrominance
|
|
* subsampling.
|
|
*
|
|
* @param subsamp the level of chrominance subsampling (one of
|
|
* <code>SAMP_*</code>)
|
|
*
|
|
* @return the MCU block width for the given level of chrominance subsampling
|
|
*/
|
|
public static int getMCUWidth(int subsamp) throws Exception {
|
|
if(subsamp < 0 || subsamp >= NUMSAMP)
|
|
throw new Exception("Invalid subsampling type");
|
|
return mcuWidth[subsamp];
|
|
}
|
|
|
|
final private static int mcuWidth[] = {
|
|
8, 16, 16, 8, 8
|
|
};
|
|
|
|
|
|
/**
|
|
* Returns the MCU block height for the given level of chrominance
|
|
* subsampling.
|
|
*
|
|
* @param subsamp the level of chrominance subsampling (one of
|
|
* <code>SAMP_*</code>)
|
|
*
|
|
* @return the MCU block height for the given level of chrominance
|
|
* subsampling
|
|
*/
|
|
public static int getMCUHeight(int subsamp) throws Exception {
|
|
if(subsamp < 0 || subsamp >= NUMSAMP)
|
|
throw new Exception("Invalid subsampling type");
|
|
return mcuHeight[subsamp];
|
|
}
|
|
|
|
final private static int mcuHeight[] = {
|
|
8, 8, 16, 8, 16
|
|
};
|
|
|
|
|
|
/**
|
|
* The number of pixel formats
|
|
*/
|
|
final public static int NUMPF = 11;
|
|
/**
|
|
* RGB pixel format. The red, green, and blue components in the image are
|
|
* stored in 3-byte pixels in the order R, G, B from lowest to highest byte
|
|
* address within each pixel.
|
|
*/
|
|
final public static int PF_RGB = 0;
|
|
/**
|
|
* BGR pixel format. The red, green, and blue components in the image are
|
|
* stored in 3-byte pixels in the order B, G, R from lowest to highest byte
|
|
* address within each pixel.
|
|
*/
|
|
final public static int PF_BGR = 1;
|
|
/**
|
|
* RGBX pixel format. The red, green, and blue components in the image are
|
|
* stored in 4-byte pixels in the order R, G, B from lowest to highest byte
|
|
* address within each pixel. The X component is ignored when compressing
|
|
* and undefined when decompressing.
|
|
*/
|
|
final public static int PF_RGBX = 2;
|
|
/**
|
|
* BGRX pixel format. The red, green, and blue components in the image are
|
|
* stored in 4-byte pixels in the order B, G, R from lowest to highest byte
|
|
* address within each pixel. The X component is ignored when compressing
|
|
* and undefined when decompressing.
|
|
*/
|
|
final public static int PF_BGRX = 3;
|
|
/**
|
|
* XBGR pixel format. The red, green, and blue components in the image are
|
|
* stored in 4-byte pixels in the order R, G, B from highest to lowest byte
|
|
* address within each pixel. The X component is ignored when compressing
|
|
* and undefined when decompressing.
|
|
*/
|
|
final public static int PF_XBGR = 4;
|
|
/**
|
|
* XRGB pixel format. The red, green, and blue components in the image are
|
|
* stored in 4-byte pixels in the order B, G, R from highest to lowest byte
|
|
* address within each pixel. The X component is ignored when compressing
|
|
* and undefined when decompressing.
|
|
*/
|
|
final public static int PF_XRGB = 5;
|
|
/**
|
|
* Grayscale pixel format. Each 1-byte pixel represents a luminance
|
|
* (brightness) level from 0 to 255.
|
|
*/
|
|
final public static int PF_GRAY = 6;
|
|
/**
|
|
* RGBA pixel format. This is the same as {@link #PF_RGBX}, except that when
|
|
* decompressing, the X byte is guaranteed to be 0xFF, which can be
|
|
* interpreted as an opaque alpha channel.
|
|
*/
|
|
final public static int PF_RGBA = 7;
|
|
/**
|
|
* BGRA pixel format. This is the same as {@link #PF_BGRX}, except that when
|
|
* decompressing, the X byte is guaranteed to be 0xFF, which can be
|
|
* interpreted as an opaque alpha channel.
|
|
*/
|
|
final public static int PF_BGRA = 8;
|
|
/**
|
|
* ABGR pixel format. This is the same as {@link #PF_XBGR}, except that when
|
|
* decompressing, the X byte is guaranteed to be 0xFF, which can be
|
|
* interpreted as an opaque alpha channel.
|
|
*/
|
|
final public static int PF_ABGR = 9;
|
|
/**
|
|
* ARGB pixel format. This is the same as {@link #PF_XRGB}, except that when
|
|
* decompressing, the X byte is guaranteed to be 0xFF, which can be
|
|
* interpreted as an opaque alpha channel.
|
|
*/
|
|
final public static int PF_ARGB = 10;
|
|
|
|
|
|
/**
|
|
* Returns the pixel size (in bytes) of the given pixel format.
|
|
*
|
|
* @param pixelFormat the pixel format (one of <code>PF_*</code>)
|
|
*
|
|
* @return the pixel size (in bytes) of the given pixel format
|
|
*/
|
|
public static int getPixelSize(int pixelFormat) throws Exception {
|
|
if(pixelFormat < 0 || pixelFormat >= NUMPF)
|
|
throw new Exception("Invalid pixel format");
|
|
return pixelSize[pixelFormat];
|
|
}
|
|
|
|
final private static int pixelSize[] = {
|
|
3, 3, 4, 4, 4, 4, 1, 4, 4, 4, 4
|
|
};
|
|
|
|
|
|
/**
|
|
* For the given pixel format, returns the number of bytes that the red
|
|
* component is offset from the start of the pixel. For instance, if a pixel
|
|
* of format <code>TJ.PF_BGRX</code> is stored in <code>char pixel[]</code>,
|
|
* then the red component will be
|
|
* <code>pixel[TJ.getRedOffset(TJ.PF_BGRX)]</code>.
|
|
*
|
|
* @param pixelFormat the pixel format (one of <code>PF_*</code>)
|
|
*
|
|
* @return the red offset for the given pixel format
|
|
*/
|
|
public static int getRedOffset(int pixelFormat) throws Exception {
|
|
if(pixelFormat < 0 || pixelFormat >= NUMPF)
|
|
throw new Exception("Invalid pixel format");
|
|
return redOffset[pixelFormat];
|
|
}
|
|
|
|
final private static int redOffset[] = {
|
|
0, 2, 0, 2, 3, 1, 0, 0, 2, 3, 1
|
|
};
|
|
|
|
|
|
/**
|
|
* For the given pixel format, returns the number of bytes that the green
|
|
* component is offset from the start of the pixel. For instance, if a pixel
|
|
* of format <code>TJ.PF_BGRX</code> is stored in <code>char pixel[]</code>,
|
|
* then the green component will be
|
|
* <code>pixel[TJ.getGreenOffset(TJ.PF_BGRX)]</code>.
|
|
*
|
|
* @param pixelFormat the pixel format (one of <code>PF_*</code>)
|
|
*
|
|
* @return the green offset for the given pixel format
|
|
*/
|
|
public static int getGreenOffset(int pixelFormat) throws Exception {
|
|
if(pixelFormat < 0 || pixelFormat >= NUMPF)
|
|
throw new Exception("Invalid pixel format");
|
|
return greenOffset[pixelFormat];
|
|
}
|
|
|
|
final private static int greenOffset[] = {
|
|
1, 1, 1, 1, 2, 2, 0, 1, 1, 2, 2
|
|
};
|
|
|
|
|
|
/**
|
|
* For the given pixel format, returns the number of bytes that the blue
|
|
* component is offset from the start of the pixel. For instance, if a pixel
|
|
* of format <code>TJ.PF_BGRX</code> is stored in <code>char pixel[]</code>,
|
|
* then the blue component will be
|
|
* <code>pixel[TJ.getBlueOffset(TJ.PF_BGRX)]</code>.
|
|
*
|
|
* @param pixelFormat the pixel format (one of <code>PF_*</code>)
|
|
*
|
|
* @return the blue offset for the given pixel format
|
|
*/
|
|
public static int getBlueOffset(int pixelFormat) throws Exception {
|
|
if(pixelFormat < 0 || pixelFormat >= NUMPF)
|
|
throw new Exception("Invalid pixel format");
|
|
return blueOffset[pixelFormat];
|
|
}
|
|
|
|
final private static int blueOffset[] = {
|
|
2, 0, 2, 0, 1, 3, 0, 2, 0, 1, 3
|
|
};
|
|
|
|
|
|
/**
|
|
* The uncompressed source/destination image is stored in bottom-up (Windows,
|
|
* OpenGL) order, not top-down (X11) order.
|
|
*/
|
|
final public static int FLAG_BOTTOMUP = 2;
|
|
/**
|
|
* Turn off CPU auto-detection and force TurboJPEG to use MMX code
|
|
* (IPP and 32-bit libjpeg-turbo versions only.)
|
|
*/
|
|
final public static int FLAG_FORCEMMX = 8;
|
|
/**
|
|
* Turn off CPU auto-detection and force TurboJPEG to use SSE code
|
|
* (32-bit IPP and 32-bit libjpeg-turbo versions only.)
|
|
*/
|
|
final public static int FLAG_FORCESSE = 16;
|
|
/**
|
|
* Turn off CPU auto-detection and force TurboJPEG to use SSE2 code
|
|
* (32-bit IPP and 32-bit libjpeg-turbo versions only.)
|
|
*/
|
|
final public static int FLAG_FORCESSE2 = 32;
|
|
/**
|
|
* Turn off CPU auto-detection and force TurboJPEG to use SSE3 code
|
|
*(64-bit IPP version only.)
|
|
*/
|
|
final public static int FLAG_FORCESSE3 = 128;
|
|
/**
|
|
* Use fast, inaccurate chrominance upsampling routines in the JPEG
|
|
* decompressor (libjpeg and libjpeg-turbo versions only.)
|
|
*/
|
|
final public static int FLAG_FASTUPSAMPLE = 256;
|
|
|
|
|
|
/**
|
|
* Returns the maximum size of the buffer (in bytes) required to hold a JPEG
|
|
* 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, and level of chrominance
|
|
* subsampling
|
|
*/
|
|
public native static int bufSize(int width, int height, int jpegSubsamp)
|
|
throws Exception;
|
|
|
|
/**
|
|
* Returns the size of the buffer (in bytes) required to hold a YUV planar
|
|
* image with the given width, height, and level of chrominance subsampling.
|
|
*
|
|
* @param width the width (in pixels) of the YUV image
|
|
*
|
|
* @param height the height (in pixels) of the YUV image
|
|
*
|
|
* @param subsamp the level of chrominance subsampling used in the YUV
|
|
* 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
|
|
*/
|
|
public native static int bufSizeYUV(int width, int height,
|
|
int subsamp)
|
|
throws Exception;
|
|
|
|
/**
|
|
* Returns a list of fractional scaling factors that the JPEG decompressor in
|
|
* this implementation of TurboJPEG supports.
|
|
*
|
|
* @return a list of fractional scaling factors that the JPEG decompressor in
|
|
* this implementation of TurboJPEG supports
|
|
*/
|
|
public native static TJScalingFactor[] getScalingFactors()
|
|
throws Exception;
|
|
|
|
static {
|
|
TJLoader.load();
|
|
}
|
|
};
|