[patch] libjpeg-turbo patch

freeimage-3.15.4-libjpeg-turbo.patch (text/plain), 20.20 KB, created by Mark Wright on 2013-09-08 03:13:11 UTC

--- /dev/null	2013-09-04 18:06:09.961000800 +1000
+++ Source/LibJPEG/jpegcomp.h	2013-09-08 12:00:09.770737557 +1000
@@ -0,0 +1,26 @@
+/*
+ * jpegcomp.h
+ *
+ * Copyright (C) 2010, D. R. Commander
+ * For conditions of distribution and use, see the accompanying README file.
+ *
+ * JPEG compatibility macros
+ * These declarations are considered internal to the JPEG library; most
+ * applications using the library shouldn't need to include this file.
+ */
+
+#if JPEG_LIB_VERSION >= 70
+#define _DCT_scaled_size DCT_h_scaled_size
+#define _min_DCT_scaled_size min_DCT_h_scaled_size
+#define _min_DCT_h_scaled_size min_DCT_h_scaled_size
+#define _min_DCT_v_scaled_size min_DCT_v_scaled_size
+#define _jpeg_width jpeg_width
+#define _jpeg_height jpeg_height
+#else
+#define _DCT_scaled_size DCT_scaled_size
+#define _min_DCT_scaled_size min_DCT_scaled_size
+#define _min_DCT_h_scaled_size min_DCT_scaled_size
+#define _min_DCT_v_scaled_size min_DCT_scaled_size
+#define _jpeg_width image_width
+#define _jpeg_height image_height
+#endif
--- Source-orig/LibJPEG/jpegint.h	2012-02-19 18:33:18.000000000 +1100
+++ Source/LibJPEG/jpegint.h	2013-09-08 12:00:09.770737557 +1000
@@ -2,7 +2,7 @@
  * jpegint.h
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
- * Modified 1997-2011 by Guido Vollbeding.
+ * Modified 1997-2009 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.
  *
@@ -100,16 +100,14 @@
 };
 
 /* Forward DCT (also controls coefficient quantization) */
-typedef JMETHOD(void, forward_DCT_ptr,
-		(j_compress_ptr cinfo, jpeg_component_info * compptr,
-		 JSAMPARRAY sample_data, JBLOCKROW coef_blocks,
-		 JDIMENSION start_row, JDIMENSION start_col,
-		 JDIMENSION num_blocks));
-
 struct jpeg_forward_dct {
   JMETHOD(void, start_pass, (j_compress_ptr cinfo));
-  /* It is useful to allow each component to have a separate FDCT method. */
-  forward_DCT_ptr forward_DCT[MAX_COMPONENTS];
+  /* perhaps this should be an array??? */
+  JMETHOD(void, forward_DCT, (j_compress_ptr cinfo,
+			      jpeg_component_info * compptr,
+			      JSAMPARRAY sample_data, JBLOCKROW coef_blocks,
+			      JDIMENSION start_row, JDIMENSION start_col,
+			      JDIMENSION num_blocks));
 };
 
 /* Entropy encoding */
@@ -213,6 +211,10 @@
   JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
   JMETHOD(boolean, decode_mcu, (j_decompress_ptr cinfo,
 				JBLOCKROW *MCU_data));
+
+  /* This is here to share code between baseline and progressive decoders; */
+  /* other modules probably should not use it */
+  boolean insufficient_data;	/* set TRUE after emitting warning */
 };
 
 /* Inverse DCT (also performs dequantization) */
@@ -302,6 +304,7 @@
 #define jinit_downsampler	jIDownsampler
 #define jinit_forward_dct	jIFDCT
 #define jinit_huff_encoder	jIHEncoder
+#define jinit_phuff_encoder	jIPHEncoder
 #define jinit_arith_encoder	jIAEncoder
 #define jinit_marker_writer	jIMWriter
 #define jinit_master_decompress	jIDMaster
@@ -311,6 +314,7 @@
 #define jinit_input_controller	jIInCtlr
 #define jinit_marker_reader	jIMReader
 #define jinit_huff_decoder	jIHDecoder
+#define jinit_phuff_decoder	jIPHDecoder
 #define jinit_arith_decoder	jIADecoder
 #define jinit_inverse_dct	jIIDCT
 #define jinit_upsampler		jIUpsampler
@@ -321,41 +325,15 @@
 #define jinit_memory_mgr	jIMemMgr
 #define jdiv_round_up		jDivRound
 #define jround_up		jRound
-#define jzero_far		jZeroFar
 #define jcopy_sample_rows	jCopySamples
 #define jcopy_block_row		jCopyBlocks
+#define jzero_far		jZeroFar
 #define jpeg_zigzag_order	jZIGTable
 #define jpeg_natural_order	jZAGTable
-#define jpeg_natural_order7	jZAG7Table
-#define jpeg_natural_order6	jZAG6Table
-#define jpeg_natural_order5	jZAG5Table
-#define jpeg_natural_order4	jZAG4Table
-#define jpeg_natural_order3	jZAG3Table
-#define jpeg_natural_order2	jZAG2Table
 #define jpeg_aritab		jAriTab
 #endif /* NEED_SHORT_EXTERNAL_NAMES */
 
 
-/* On normal machines we can apply MEMCOPY() and MEMZERO() to sample arrays
- * and coefficient-block arrays.  This won't work on 80x86 because the arrays
- * are FAR and we're assuming a small-pointer memory model.  However, some
- * DOS compilers provide far-pointer versions of memcpy() and memset() even
- * in the small-model libraries.  These will be used if USE_FMEM is defined.
- * Otherwise, the routines in jutils.c do it the hard way.
- */
-
-#ifndef NEED_FAR_POINTERS	/* normal case, same as regular macro */
-#define FMEMZERO(target,size)	MEMZERO(target,size)
-#else				/* 80x86 case */
-#ifdef USE_FMEM
-#define FMEMZERO(target,size)	_fmemset((void FAR *)(target), 0, (size_t)(size))
-#else
-EXTERN(void) jzero_far JPP((void FAR * target, size_t bytestozero));
-#define FMEMZERO(target,size)	jzero_far(target, size)
-#endif
-#endif
-
-
 /* Compression module initialization routines */
 EXTERN(void) jinit_compress_master JPP((j_compress_ptr cinfo));
 EXTERN(void) jinit_c_master_control JPP((j_compress_ptr cinfo,
@@ -370,6 +348,7 @@
 EXTERN(void) jinit_downsampler JPP((j_compress_ptr cinfo));
 EXTERN(void) jinit_forward_dct JPP((j_compress_ptr cinfo));
 EXTERN(void) jinit_huff_encoder JPP((j_compress_ptr cinfo));
+EXTERN(void) jinit_phuff_encoder JPP((j_compress_ptr cinfo));
 EXTERN(void) jinit_arith_encoder JPP((j_compress_ptr cinfo));
 EXTERN(void) jinit_marker_writer JPP((j_compress_ptr cinfo));
 /* Decompression module initialization routines */
@@ -383,6 +362,7 @@
 EXTERN(void) jinit_input_controller JPP((j_decompress_ptr cinfo));
 EXTERN(void) jinit_marker_reader JPP((j_decompress_ptr cinfo));
 EXTERN(void) jinit_huff_decoder JPP((j_decompress_ptr cinfo));
+EXTERN(void) jinit_phuff_decoder JPP((j_decompress_ptr cinfo));
 EXTERN(void) jinit_arith_decoder JPP((j_decompress_ptr cinfo));
 EXTERN(void) jinit_inverse_dct JPP((j_decompress_ptr cinfo));
 EXTERN(void) jinit_upsampler JPP((j_decompress_ptr cinfo));
@@ -401,17 +381,12 @@
 				    int num_rows, JDIMENSION num_cols));
 EXTERN(void) jcopy_block_row JPP((JBLOCKROW input_row, JBLOCKROW output_row,
 				  JDIMENSION num_blocks));
+EXTERN(void) jzero_far JPP((void FAR * target, size_t bytestozero));
 /* Constant tables in jutils.c */
 #if 0				/* This table is not actually needed in v6a */
 extern const int jpeg_zigzag_order[]; /* natural coef order to zigzag order */
 #endif
 extern const int jpeg_natural_order[]; /* zigzag coef order to natural order */
-extern const int jpeg_natural_order7[]; /* zz to natural order for 7x7 block */
-extern const int jpeg_natural_order6[]; /* zz to natural order for 6x6 block */
-extern const int jpeg_natural_order5[]; /* zz to natural order for 5x5 block */
-extern const int jpeg_natural_order4[]; /* zz to natural order for 4x4 block */
-extern const int jpeg_natural_order3[]; /* zz to natural order for 3x3 block */
-extern const int jpeg_natural_order2[]; /* zz to natural order for 2x2 block */
 
 /* Arithmetic coding probability estimation tables in jaricom.c */
 extern const INT32 jpeg_aritab[];
--- Source-orig/LibJPEG/transupp.h	2012-02-19 18:33:18.000000000 +1100
+++ Source/LibJPEG/transupp.h	2013-09-08 12:00:09.820737560 +1000
@@ -1,7 +1,7 @@
 /*
  * transupp.h
  *
- * Copyright (C) 1997-2011, Thomas G. Lane, Guido Vollbeding.
+ * Copyright (C) 1997-2009, 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.
  *
@@ -57,7 +57,6 @@
  * corner up and/or left to make it so, simultaneously increasing the region
  * dimensions to keep the lower right crop corner unchanged.  (Thus, the
  * output image covers at least the requested region, but may cover more.)
- * The adjustment of the region dimensions may be optionally disabled.
  *
  * We also provide a lossless-resize option, which is kind of a lossless-crop
  * operation in the DCT coefficient block domain - it discards higher-order
@@ -107,15 +106,13 @@
 
 /*
  * Codes for crop parameters, which can individually be unspecified,
- * positive or negative for xoffset or yoffset,
- * positive or forced for width or height.
+ * positive, or negative.  (Negative width or height makes no sense, though.)
  */
 
 typedef enum {
-        JCROP_UNSET,
-        JCROP_POS,
-        JCROP_NEG,
-        JCROP_FORCE
+	JCROP_UNSET,
+	JCROP_POS,
+	JCROP_NEG
 } JCROP_CODE;
 
 /*
@@ -131,14 +128,21 @@
   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) */
+  JCROP_CODE crop_width_set;
   JDIMENSION crop_height;	/* Height of selected region */
-  JCROP_CODE crop_height_set;	/* (forced disables adjustment) */
+  JCROP_CODE crop_height_set;
   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 */
--- Source-orig/LibJPEG/transupp.c	2012-02-19 18:33:18.000000000 +1100
+++ Source/LibJPEG/transupp.c	2013-09-08 12:00:09.819737560 +1000
@@ -1,7 +1,8 @@
 /*
  * transupp.c
  *
- * Copyright (C) 1997-2011, Thomas G. Lane, Guido Vollbeding.
+ * Copyright (C) 1997-2009, Thomas G. Lane, Guido Vollbeding.
+ * Copyright (C) 2010, D. R. Commander.
  * This file is part of the Independent JPEG Group's software.
  * For conditions of distribution and use, see the accompanying README file.
  *
@@ -20,9 +21,19 @@
 #include "jinclude.h"
 #include "jpeglib.h"
 #include "transupp.h"		/* My own external interface */
+#include "jpegcomp.h"
 #include <ctype.h>		/* to declare isdigit() */
 
 
+#if JPEG_LIB_VERSION >= 70
+#define dstinfo_min_DCT_h_scaled_size dstinfo->min_DCT_h_scaled_size
+#define dstinfo_min_DCT_v_scaled_size dstinfo->min_DCT_v_scaled_size
+#else
+#define dstinfo_min_DCT_h_scaled_size DCTSIZE
+#define dstinfo_min_DCT_v_scaled_size DCTSIZE
+#endif
+
+
 #if TRANSFORMS_SUPPORTED
 
 /*
@@ -134,7 +145,7 @@
    * Partial iMCUs at the right edge are left untouched.
    */
   MCU_cols = srcinfo->output_width /
-    (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size);
+    (dstinfo->max_h_samp_factor * dstinfo_min_DCT_h_scaled_size);
 
   for (ci = 0; ci < dstinfo->num_components; ci++) {
     compptr = dstinfo->comp_info + ci;
@@ -200,7 +211,7 @@
    * this is essentially the same as the routine above.
    */
   MCU_cols = srcinfo->output_width /
-    (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size);
+    (dstinfo->max_h_samp_factor * dstinfo_min_DCT_h_scaled_size);
 
   for (ci = 0; ci < dstinfo->num_components; ci++) {
     compptr = dstinfo->comp_info + ci;
@@ -265,7 +276,7 @@
    * Partial iMCUs at the bottom edge are copied verbatim.
    */
   MCU_rows = srcinfo->output_height /
-    (dstinfo->max_v_samp_factor * dstinfo->min_DCT_v_scaled_size);
+    (dstinfo->max_v_samp_factor * dstinfo_min_DCT_v_scaled_size);
 
   for (ci = 0; ci < dstinfo->num_components; ci++) {
     compptr = dstinfo->comp_info + ci;
@@ -393,7 +404,7 @@
    * not mirrored.
    */
   MCU_cols = srcinfo->output_height /
-    (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size);
+    (dstinfo->max_h_samp_factor * dstinfo_min_DCT_h_scaled_size);
 
   for (ci = 0; ci < dstinfo->num_components; ci++) {
     compptr = dstinfo->comp_info + ci;
@@ -474,7 +485,7 @@
    * not mirrored.
    */
   MCU_rows = srcinfo->output_width /
-    (dstinfo->max_v_samp_factor * dstinfo->min_DCT_v_scaled_size);
+    (dstinfo->max_v_samp_factor * dstinfo_min_DCT_v_scaled_size);
 
   for (ci = 0; ci < dstinfo->num_components; ci++) {
     compptr = dstinfo->comp_info + ci;
@@ -542,9 +553,9 @@
   jpeg_component_info *compptr;
 
   MCU_cols = srcinfo->output_width /
-    (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size);
+    (dstinfo->max_h_samp_factor * dstinfo_min_DCT_h_scaled_size);
   MCU_rows = srcinfo->output_height /
-    (dstinfo->max_v_samp_factor * dstinfo->min_DCT_v_scaled_size);
+    (dstinfo->max_v_samp_factor * dstinfo_min_DCT_v_scaled_size);
 
   for (ci = 0; ci < dstinfo->num_components; ci++) {
     compptr = dstinfo->comp_info + ci;
@@ -653,9 +664,9 @@
   jpeg_component_info *compptr;
 
   MCU_cols = srcinfo->output_height /
-    (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size);
+    (dstinfo->max_h_samp_factor * dstinfo_min_DCT_h_scaled_size);
   MCU_rows = srcinfo->output_width /
-    (dstinfo->max_v_samp_factor * dstinfo->min_DCT_v_scaled_size);
+    (dstinfo->max_v_samp_factor * dstinfo_min_DCT_v_scaled_size);
 
   for (ci = 0; ci < dstinfo->num_components; ci++) {
     compptr = dstinfo->comp_info + ci;
@@ -771,7 +782,7 @@
  * The routine returns TRUE if the spec string is valid, FALSE if not.
  *
  * The crop spec string should have the format
- *	<width>[f]x<height>[f]{+-}<xoffset>{+-}<yoffset>
+ *	<width>x<height>{+-}<xoffset>{+-}<yoffset>
  * where width, height, xoffset, and yoffset are unsigned integers.
  * Each of the elements can be omitted to indicate a default value.
  * (A weakness of this style is that it is not possible to omit xoffset
@@ -793,22 +804,14 @@
     /* fetch width */
     if (! jt_read_integer(&spec, &info->crop_width))
       return FALSE;
-    if (*spec == 'f' || *spec == 'F') {
-      spec++;
-      info->crop_width_set = JCROP_FORCE;
-    } else
-      info->crop_width_set = JCROP_POS;
+    info->crop_width_set = JCROP_POS;
   }
-  if (*spec == 'x' || *spec == 'X') {
+  if (*spec == 'x' || *spec == 'X') {	
     /* fetch height */
     spec++;
     if (! jt_read_integer(&spec, &info->crop_height))
       return FALSE;
-    if (*spec == 'f' || *spec == 'F') {
-      spec++;
-      info->crop_height_set = JCROP_FORCE;
-    } else
-      info->crop_height_set = JCROP_POS;
+    info->crop_height_set = JCROP_POS;
   }
   if (*spec == '+' || *spec == '-') {
     /* fetch xoffset */
@@ -897,7 +900,12 @@
     info->num_components = srcinfo->num_components;
 
   /* Compute output image dimensions and related values. */
+#if JPEG_LIB_VERSION >= 80
   jpeg_core_output_dimensions(srcinfo);
+#else
+  srcinfo->output_width = srcinfo->image_width;
+  srcinfo->output_height = srcinfo->image_height;
+#endif
 
   /* Return right away if -perfect is given and transformation is not perfect.
    */
@@ -905,15 +913,15 @@
     if (info->num_components == 1) {
       if (!jtransform_perfect_transform(srcinfo->output_width,
 	  srcinfo->output_height,
-	  srcinfo->min_DCT_h_scaled_size,
-	  srcinfo->min_DCT_v_scaled_size,
+	  srcinfo->_min_DCT_h_scaled_size,
+	  srcinfo->_min_DCT_v_scaled_size,
 	  info->transform))
 	return FALSE;
     } else {
       if (!jtransform_perfect_transform(srcinfo->output_width,
 	  srcinfo->output_height,
-	  srcinfo->max_h_samp_factor * srcinfo->min_DCT_h_scaled_size,
-	  srcinfo->max_v_samp_factor * srcinfo->min_DCT_v_scaled_size,
+	  srcinfo->max_h_samp_factor * srcinfo->_min_DCT_h_scaled_size,
+	  srcinfo->max_v_samp_factor * srcinfo->_min_DCT_v_scaled_size,
 	  info->transform))
 	return FALSE;
     }
@@ -932,26 +940,26 @@
     info->output_width = srcinfo->output_height;
     info->output_height = srcinfo->output_width;
     if (info->num_components == 1) {
-      info->iMCU_sample_width = srcinfo->min_DCT_v_scaled_size;
-      info->iMCU_sample_height = srcinfo->min_DCT_h_scaled_size;
+      info->iMCU_sample_width = srcinfo->_min_DCT_v_scaled_size;
+      info->iMCU_sample_height = srcinfo->_min_DCT_h_scaled_size;
     } else {
       info->iMCU_sample_width =
-	srcinfo->max_v_samp_factor * srcinfo->min_DCT_v_scaled_size;
+	srcinfo->max_v_samp_factor * srcinfo->_min_DCT_v_scaled_size;
       info->iMCU_sample_height =
-	srcinfo->max_h_samp_factor * srcinfo->min_DCT_h_scaled_size;
+	srcinfo->max_h_samp_factor * srcinfo->_min_DCT_h_scaled_size;
     }
     break;
   default:
     info->output_width = srcinfo->output_width;
     info->output_height = srcinfo->output_height;
     if (info->num_components == 1) {
-      info->iMCU_sample_width = srcinfo->min_DCT_h_scaled_size;
-      info->iMCU_sample_height = srcinfo->min_DCT_v_scaled_size;
+      info->iMCU_sample_width = srcinfo->_min_DCT_h_scaled_size;
+      info->iMCU_sample_height = srcinfo->_min_DCT_v_scaled_size;
     } else {
       info->iMCU_sample_width =
-	srcinfo->max_h_samp_factor * srcinfo->min_DCT_h_scaled_size;
+	srcinfo->max_h_samp_factor * srcinfo->_min_DCT_h_scaled_size;
       info->iMCU_sample_height =
-	srcinfo->max_v_samp_factor * srcinfo->min_DCT_v_scaled_size;
+	srcinfo->max_v_samp_factor * srcinfo->_min_DCT_v_scaled_size;
     }
     break;
   }
@@ -988,16 +996,10 @@
     else
       yoffset = info->crop_yoffset;
     /* Now adjust so that upper left corner falls at an iMCU boundary */
-    if (info->crop_width_set == JCROP_FORCE)
-      info->output_width = info->crop_width;
-    else
-      info->output_width =
-        info->crop_width + (xoffset % info->iMCU_sample_width);
-    if (info->crop_height_set == JCROP_FORCE)
-      info->output_height = info->crop_height;
-    else
-      info->output_height =
-        info->crop_height + (yoffset % info->iMCU_sample_height);
+    info->output_width =
+      info->crop_width + (xoffset % info->iMCU_sample_width);
+    info->output_height =
+      info->crop_height + (yoffset % info->iMCU_sample_height);
     /* Save x/y offsets measured in iMCUs */
     info->x_crop_offset = xoffset / info->iMCU_sample_width;
     info->y_crop_offset = yoffset / info->iMCU_sample_height;
@@ -1020,7 +1022,7 @@
   case JXFORM_FLIP_H:
     if (info->trim)
       trim_right_edge(info, srcinfo->output_width);
-    if (info->y_crop_offset != 0)
+    if (info->y_crop_offset != 0 || info->slow_hflip)
       need_workspace = TRUE;
     /* do_flip_h_no_crop doesn't need a workspace array */
     break;
@@ -1124,9 +1126,11 @@
   jtemp = dstinfo->image_width;
   dstinfo->image_width = dstinfo->image_height;
   dstinfo->image_height = jtemp;
+#if JPEG_LIB_VERSION >= 70
   itemp = dstinfo->min_DCT_h_scaled_size;
   dstinfo->min_DCT_h_scaled_size = dstinfo->min_DCT_v_scaled_size;
   dstinfo->min_DCT_v_scaled_size = itemp;
+#endif
 
   /* Transpose sampling factors */
   for (ci = 0; ci < dstinfo->num_components; ci++) {
@@ -1362,8 +1366,10 @@
   /* Correct the destination's image dimensions as necessary
    * for rotate/flip, resize, and crop operations.
    */
+#if JPEG_LIB_VERSION >= 70
   dstinfo->jpeg_width = info->output_width;
   dstinfo->jpeg_height = info->output_height;
+#endif
 
   /* Transpose destination image parameters */
   switch (info->transform) {
@@ -1371,9 +1377,17 @@
   case JXFORM_TRANSVERSE:
   case JXFORM_ROT_90:
   case JXFORM_ROT_270:
+#if JPEG_LIB_VERSION < 70
+    dstinfo->image_width = info->output_height;
+    dstinfo->image_height = info->output_width;
+#endif
     transpose_critical_parameters(dstinfo);
     break;
   default:
+#if JPEG_LIB_VERSION < 70
+    dstinfo->image_width = info->output_width;
+    dstinfo->image_height = info->output_height;
+#endif
     break;
   }
 
@@ -1389,6 +1403,7 @@
       GETJOCTET(srcinfo->marker_list->data[5]) == 0) {
     /* Suppress output of JFIF marker */
     dstinfo->write_JFIF_header = FALSE;
+#if JPEG_LIB_VERSION >= 70
     /* Adjust Exif image parameters */
     if (dstinfo->jpeg_width != srcinfo->image_width ||
 	dstinfo->jpeg_height != srcinfo->image_height)
@@ -1396,6 +1411,7 @@
       adjust_exif_parameters(srcinfo->marker_list->data + 6,
 	srcinfo->marker_list->data_length - 6,
 	dstinfo->jpeg_width, dstinfo->jpeg_height);
+#endif
   }
 
   /* Return the appropriate output data set */
@@ -1432,7 +1448,7 @@
 	      src_coef_arrays, dst_coef_arrays);
     break;
   case JXFORM_FLIP_H:
-    if (info->y_crop_offset != 0)
+    if (info->y_crop_offset != 0 || info->slow_hflip)
       do_flip_h(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset,
 		src_coef_arrays, dst_coef_arrays);
     else