Update to libjpeg_turbo 1.4.90

transupp.h

 /*
  * transupp.h
  *
+ * This file was part of the Independent JPEG Group's software:
  * Copyright (C) 1997-2011, Thomas G. Lane, Guido Vollbeding.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
+ * It was modified by The libjpeg-turbo Project to include only code relevant
+ * to libjpeg-turbo.
+ * For conditions of distribution and use, see the accompanying README.ijg
+ * file.
  *
  * This file contains declarations for image transformation routines and
  * other utility code used by the jpegtran sample application.  These are
  * NOT part of the core JPEG library.  But we keep these routines separate
  * from jpegtran.c to ease the task of maintaining jpegtran-like programs
  * that have other user interfaces.
  *
  * NOTE: all the routines declared here have very specific requirements
  * about when they are to be executed during the reading and writing of the
  * source and destination files.  See the comments in transupp.c, or see
  * jpegtran.c for an example of correct usage.
  */
 
 /* If you happen not to want the image transform support, disable it here */
 #ifndef TRANSFORMS_SUPPORTED
-#define TRANSFORMS_SUPPORTED 1          /* 0 disables transform code */
+#define TRANSFORMS_SUPPORTED 1          /* 0 disables transform code */
 #endif
 
 /*
  * Although rotating and flipping data expressed as DCT coefficients is not
  * hard, there is an asymmetry in the JPEG format specification for images
  * whose dimensions aren't multiples of the iMCU size.  The right and bottom
  * image edges are padded out to the next iMCU boundary with junk data; but
  * no padding is possible at the top and left edges.  If we were to flip
  * the whole image including the pad data, then pad garbage would become
  * visible at the top and/or left, and real pixels would disappear into the
@@ skipping 37 matching lines @@
  *
  * We also offer a "force to grayscale" option, which simply discards the
  * chrominance channels of a YCbCr image.  This is lossless in the sense that
  * the luminance channel is preserved exactly.  It's not the same kind of
  * thing as the rotate/flip transformations, but it's convenient to handle it
  * as part of this package, mainly because the transformation routines have to
  * be aware of the option to know how many components to work on.
  */
 
 
-/* Short forms of external names for systems with brain-damaged linkers. */
-
-#ifdef NEED_SHORT_EXTERNAL_NAMES
-#define jtransform_parse_crop_spec      jTrParCrop
-#define jtransform_request_workspace    jTrRequest
-#define jtransform_adjust_parameters    jTrAdjust
-#define jtransform_execute_transform    jTrExec
-#define jtransform_perfect_transform    jTrPerfect
-#define jcopy_markers_setup             jCMrkSetup
-#define jcopy_markers_execute           jCMrkExec
-#endif /* NEED_SHORT_EXTERNAL_NAMES */
-
-
 /*
  * Codes for supported types of image transformations.
  */
 
 typedef enum {
-        JXFORM_NONE,            /* no transformation */
-        JXFORM_FLIP_H,          /* horizontal flip */
-        JXFORM_FLIP_V,          /* vertical flip */
-        JXFORM_TRANSPOSE,       /* transpose across UL-to-LR axis */
-        JXFORM_TRANSVERSE,      /* transpose across UR-to-LL axis */
-        JXFORM_ROT_90,          /* 90-degree clockwise rotation */
-        JXFORM_ROT_180,         /* 180-degree rotation */
-        JXFORM_ROT_270          /* 270-degree clockwise (or 90 ccw) */
+  JXFORM_NONE,            /* no transformation */
+  JXFORM_FLIP_H,          /* horizontal flip */
+  JXFORM_FLIP_V,          /* vertical flip */
+  JXFORM_TRANSPOSE,       /* transpose across UL-to-LR axis */
+  JXFORM_TRANSVERSE,      /* transpose across UR-to-LL axis */
+  JXFORM_ROT_90,          /* 90-degree clockwise rotation */
+  JXFORM_ROT_180,         /* 180-degree rotation */
+  JXFORM_ROT_270          /* 270-degree clockwise (or 90 ccw) */
 } JXFORM_CODE;
 
 /*
  * Codes for crop parameters, which can individually be unspecified,
  * positive or negative for xoffset or yoffset,
  * positive or forced for width or height.
  */
 
 typedef enum {
-        JCROP_UNSET,
-        JCROP_POS,
-        JCROP_NEG,
-        JCROP_FORCE
+  JCROP_UNSET,
+  JCROP_POS,
+  JCROP_NEG,
+  JCROP_FORCE
 } JCROP_CODE;
 
 /*
  * Transform parameters struct.
  * NB: application must not change any elements of this struct after
  * calling jtransform_request_workspace.
  */
 
 typedef struct {
   /* Options: set by caller */
-  JXFORM_CODE transform;        /* image transform operator */
-  boolean perfect;              /* if TRUE, fail if partial MCUs are requested */
-  boolean trim;                 /* if TRUE, trim partial MCUs as needed */
-  boolean force_grayscale;      /* if TRUE, convert color image to grayscale */
-  boolean crop;                 /* if TRUE, crop source image */
+  JXFORM_CODE transform;        /* image transform operator */
+  boolean perfect;              /* if TRUE, fail if partial MCUs are requested */
+  boolean trim;                 /* if TRUE, trim partial MCUs as needed */
+  boolean force_grayscale;      /* if TRUE, convert color image to grayscale */
+  boolean crop;                 /* if TRUE, crop source image */
   boolean slow_hflip;  /* For best performance, the JXFORM_FLIP_H transform
                           normally modifies the source coefficients in place.
                           Setting this to TRUE will instead use a slower,
                           double-buffered algorithm, which leaves the source
                           coefficients in tact (necessary if other transformed
                           images must be generated from the same set of
                           coefficients. */
 
   /* Crop parameters: application need not set these unless crop is TRUE.
    * These can be filled in by jtransform_parse_crop_spec().
    */
-  JDIMENSION crop_width;        /* Width of selected region */
-  JCROP_CODE crop_width_set;    /* (forced disables adjustment) */
-  JDIMENSION crop_height;       /* Height of selected region */
-  JCROP_CODE crop_height_set;   /* (forced disables adjustment) */
-  JDIMENSION crop_xoffset;      /* X offset of selected region */
-  JCROP_CODE crop_xoffset_set;  /* (negative measures from right edge) */
-  JDIMENSION crop_yoffset;      /* Y offset of selected region */
-  JCROP_CODE crop_yoffset_set;  /* (negative measures from bottom edge) */
+  JDIMENSION crop_width;        /* Width of selected region */
+  JCROP_CODE crop_width_set;    /* (forced disables adjustment) */
+  JDIMENSION crop_height;       /* Height of selected region */
+  JCROP_CODE crop_height_set;   /* (forced disables adjustment) */
+  JDIMENSION crop_xoffset;      /* X offset of selected region */
+  JCROP_CODE crop_xoffset_set;  /* (negative measures from right edge) */
+  JDIMENSION crop_yoffset;      /* Y offset of selected region */
+  JCROP_CODE crop_yoffset_set;  /* (negative measures from bottom edge) */
 
   /* Internal workspace: caller should not touch these */
-  int num_components;           /* # of components in workspace */
-  jvirt_barray_ptr * workspace_coef_arrays; /* workspace for transformations */
-  JDIMENSION output_width;      /* cropped destination dimensions */
+  int num_components;           /* # of components in workspace */
+  jvirt_barray_ptr *workspace_coef_arrays; /* workspace for transformations */
+  JDIMENSION output_width;      /* cropped destination dimensions */
   JDIMENSION output_height;
-  JDIMENSION x_crop_offset;     /* destination crop offsets measured in iMCUs */
+  JDIMENSION x_crop_offset;     /* destination crop offsets measured in iMCUs */
   JDIMENSION y_crop_offset;
-  int iMCU_sample_width;        /* destination iMCU size */
+  int iMCU_sample_width;        /* destination iMCU size */
   int iMCU_sample_height;
 } jpeg_transform_info;
 
 
 #if TRANSFORMS_SUPPORTED
 
 /* Parse a crop specification (written in X11 geometry style) */
 EXTERN(boolean) jtransform_parse_crop_spec
-        JPP((jpeg_transform_info *info, const char *spec));
+        (jpeg_transform_info *info, const char *spec);
 /* Request any required workspace */
 EXTERN(boolean) jtransform_request_workspace
-        JPP((j_decompress_ptr srcinfo, jpeg_transform_info *info));
+        (j_decompress_ptr srcinfo, jpeg_transform_info *info);
 /* Adjust output image parameters */
 EXTERN(jvirt_barray_ptr *) jtransform_adjust_parameters
-        JPP((j_decompress_ptr srcinfo, j_compress_ptr dstinfo,
-             jvirt_barray_ptr *src_coef_arrays,
-             jpeg_transform_info *info));
+        (j_decompress_ptr srcinfo, j_compress_ptr dstinfo,
+         jvirt_barray_ptr *src_coef_arrays, jpeg_transform_info *info);
 /* Execute the actual transformation, if any */
 EXTERN(void) jtransform_execute_transform
-        JPP((j_decompress_ptr srcinfo, j_compress_ptr dstinfo,
-             jvirt_barray_ptr *src_coef_arrays,
-             jpeg_transform_info *info));
+        (j_decompress_ptr srcinfo, j_compress_ptr dstinfo,
+         jvirt_barray_ptr *src_coef_arrays, jpeg_transform_info *info);
 /* Determine whether lossless transformation is perfectly
  * possible for a specified image and transformation.
  */
 EXTERN(boolean) jtransform_perfect_transform
-        JPP((JDIMENSION image_width, JDIMENSION image_height,
-             int MCU_width, int MCU_height,
-             JXFORM_CODE transform));
+        (JDIMENSION image_width, JDIMENSION image_height, int MCU_width,
+         int MCU_height, JXFORM_CODE transform);
 
 /* jtransform_execute_transform used to be called
  * jtransform_execute_transformation, but some compilers complain about
  * routine names that long.  This macro is here to avoid breaking any
  * old source code that uses the original name...
  */
-#define jtransform_execute_transformation       jtransform_execute_transform
+#define jtransform_execute_transformation       jtransform_execute_transform
 
 #endif /* TRANSFORMS_SUPPORTED */
 
 
 /*
  * Support for copying optional markers from source to destination file.
  */
 
 typedef enum {
-        JCOPYOPT_NONE,          /* copy no optional markers */
-        JCOPYOPT_COMMENTS,      /* copy only comment (COM) markers */
-        JCOPYOPT_ALL            /* copy all optional markers */
+  JCOPYOPT_NONE,          /* copy no optional markers */
+  JCOPYOPT_COMMENTS,      /* copy only comment (COM) markers */
+  JCOPYOPT_ALL            /* copy all optional markers */
 } JCOPY_OPTION;
 
-#define JCOPYOPT_DEFAULT  JCOPYOPT_COMMENTS     /* recommended default */
+#define JCOPYOPT_DEFAULT  JCOPYOPT_COMMENTS     /* recommended default */
 
 /* Setup decompression object to save desired markers in memory */
 EXTERN(void) jcopy_markers_setup
-        JPP((j_decompress_ptr srcinfo, JCOPY_OPTION option));
+        (j_decompress_ptr srcinfo, JCOPY_OPTION option);
 /* Copy markers saved in the given source object to the destination object */
 EXTERN(void) jcopy_markers_execute
-        JPP((j_decompress_ptr srcinfo, j_compress_ptr dstinfo,
-             JCOPY_OPTION option));
+        (j_decompress_ptr srcinfo, j_compress_ptr dstinfo,
+         JCOPY_OPTION option);