Update to libjpeg_turbo 1.4.90

wrppm.c

Index: wrppm.c
diff --git a/wrppm.c b/wrppm.c
index 68e0c85c3ca16115444a775c8a19ac4b726fce40..40fbf1fc108c314220926594b9e449896d27c254 100644
--- a/wrppm.c
+++ b/wrppm.c
@@ -1,10 +1,13 @@
 /*
  * wrppm.c
  *
+ * This file was part of the Independent JPEG Group's software:
  * Copyright (C) 1991-1996, Thomas G. Lane.
  * Modified 2009 by 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 and
+ * information relevant to libjpeg-turbo.
+ * For conditions of distribution and use, see the accompanying README.ijg
+ * file.
  *
  * This file contains routines to write output images in PPM/PGM format.
  * The extended 2-byte-per-sample raw PPM/PGM formats are supported.
@@ -16,7 +19,8 @@
  * an ordinary stdio stream.
  */
 
-#include "cdjpeg.h"		/* Common decls for cjpeg/djpeg applications */
+#include "cdjpeg.h"             /* Common decls for cjpeg/djpeg applications */
+#include "wrppm.h"
 
 #ifdef PPM_SUPPORTED
 
@@ -42,11 +46,11 @@
 #define PPM_MAXVAL 255
 #else
 /* The word-per-sample format always puts the MSB first. */
-#define PUTPPMSAMPLE(ptr,v)			\
-	{ register int val_ = v;		\
-	  *ptr++ = (char) ((val_ >> 8) & 0xFF);	\
-	  *ptr++ = (char) (val_ & 0xFF);	\
-	}
+#define PUTPPMSAMPLE(ptr,v)                     \
+        { register int val_ = v;                \
+          *ptr++ = (char) ((val_ >> 8) & 0xFF); \
+          *ptr++ = (char) (val_ & 0xFF);        \
+        }
 #define BYTESPERSAMPLE 2
 #define PPM_MAXVAL ((1<<BITS_IN_JSAMPLE)-1)
 #endif
@@ -55,30 +59,10 @@
 
 /*
  * When JSAMPLE is the same size as char, we can just fwrite() the
- * decompressed data to the PPM or PGM file.  On PCs, in order to make this
- * work the output buffer must be allocated in near data space, because we are
- * assuming small-data memory model wherein fwrite() can't reach far memory.
- * If you need to process very wide images on a PC, you might have to compile
- * in large-memory model, or else replace fwrite() with a putc() loop ---
- * which will be much slower.
+ * decompressed data to the PPM or PGM file.
  */
 
 
-/* Private version of data destination object */
-
-typedef struct {
-  struct djpeg_dest_struct pub;	/* public fields */
-
-  /* Usually these two pointers point to the same place: */
-  char *iobuffer;		/* fwrite's I/O buffer */
-  JSAMPROW pixrow;		/* decompressor output buffer */
-  size_t buffer_width;		/* width of I/O buffer */
-  JDIMENSION samples_per_row;	/* JSAMPLEs per output row */
-} ppm_dest_struct;
-
-typedef ppm_dest_struct * ppm_dest_ptr;
-
-
 /*
  * Write some pixel data.
  * In this module rows_supplied will always be 1.
@@ -89,7 +73,7 @@ typedef ppm_dest_struct * ppm_dest_ptr;
 
 METHODDEF(void)
 put_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo,
-		JDIMENSION rows_supplied)
+                JDIMENSION rows_supplied)
 {
   ppm_dest_ptr dest = (ppm_dest_ptr) dinfo;
 
@@ -104,10 +88,10 @@ put_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo,
 
 METHODDEF(void)
 copy_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo,
-		 JDIMENSION rows_supplied)
+                 JDIMENSION rows_supplied)
 {
   ppm_dest_ptr dest = (ppm_dest_ptr) dinfo;
-  register char * bufferptr;
+  register char *bufferptr;
   register JSAMPROW ptr;
   register JDIMENSION col;
 
@@ -127,10 +111,10 @@ copy_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo,
 
 METHODDEF(void)
 put_demapped_rgb (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo,
-		  JDIMENSION rows_supplied)
+                  JDIMENSION rows_supplied)
 {
   ppm_dest_ptr dest = (ppm_dest_ptr) dinfo;
-  register char * bufferptr;
+  register char *bufferptr;
   register int pixval;
   register JSAMPROW ptr;
   register JSAMPROW color_map0 = cinfo->colormap[0];
@@ -152,10 +136,10 @@ put_demapped_rgb (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo,
 
 METHODDEF(void)
 put_demapped_gray (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo,
-		   JDIMENSION rows_supplied)
+                   JDIMENSION rows_supplied)
 {
   ppm_dest_ptr dest = (ppm_dest_ptr) dinfo;
-  register char * bufferptr;
+  register char *bufferptr;
   register JSAMPROW ptr;
   register JSAMPROW color_map = cinfo->colormap[0];
   register JDIMENSION col;
@@ -183,14 +167,14 @@ start_output_ppm (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo)
   case JCS_GRAYSCALE:
     /* emit header for raw PGM format */
     fprintf(dest->pub.output_file, "P5\n%ld %ld\n%d\n",
-	    (long) cinfo->output_width, (long) cinfo->output_height,
-	    PPM_MAXVAL);
+            (long) cinfo->output_width, (long) cinfo->output_height,
+            PPM_MAXVAL);
     break;
   case JCS_RGB:
     /* emit header for raw PPM format */
     fprintf(dest->pub.output_file, "P6\n%ld %ld\n%d\n",
-	    (long) cinfo->output_width, (long) cinfo->output_height,
-	    PPM_MAXVAL);
+            (long) cinfo->output_width, (long) cinfo->output_height,
+            PPM_MAXVAL);
     break;
   default:
     ERREXIT(cinfo, JERR_PPM_COLORSPACE);
@@ -224,21 +208,21 @@ jinit_write_ppm (j_decompress_ptr cinfo)
   /* Create module interface object, fill in method pointers */
   dest = (ppm_dest_ptr)
       (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				  SIZEOF(ppm_dest_struct));
+                                  sizeof(ppm_dest_struct));
   dest->pub.start_output = start_output_ppm;
   dest->pub.finish_output = finish_output_ppm;
 
   /* Calculate output image dimensions so we can allocate space */
   jpeg_calc_output_dimensions(cinfo);
 
-  /* Create physical I/O buffer.  Note we make this near on a PC. */
+  /* Create physical I/O buffer */
   dest->samples_per_row = cinfo->output_width * cinfo->out_color_components;
-  dest->buffer_width = dest->samples_per_row * (BYTESPERSAMPLE * SIZEOF(char));
+  dest->buffer_width = dest->samples_per_row * (BYTESPERSAMPLE * sizeof(char));
   dest->iobuffer = (char *) (*cinfo->mem->alloc_small)
     ((j_common_ptr) cinfo, JPOOL_IMAGE, dest->buffer_width);
 
   if (cinfo->quantize_colors || BITS_IN_JSAMPLE != 8 ||
-      SIZEOF(JSAMPLE) != SIZEOF(char)) {
+      sizeof(JSAMPLE) != sizeof(char)) {
     /* When quantizing, we need an output buffer for colormap indexes
      * that's separate from the physical I/O buffer.  We also need a
      * separate buffer if pixel format translation must take place.
@@ -256,7 +240,6 @@ jinit_write_ppm (j_decompress_ptr cinfo)
   } else {
     /* We will fwrite() directly from decompressor output buffer. */
     /* Synthesize a JSAMPARRAY pointer structure */
-    /* Cast here implies near->far pointer conversion on PCs */
     dest->pixrow = (JSAMPROW) dest->iobuffer;
     dest->pub.buffer = & dest->pixrow;
     dest->pub.buffer_height = 1;