diff options
Diffstat (limited to 'plugins/AdvaImg/src/LibJPEG/jdapimin.c')
| -rw-r--r-- | plugins/AdvaImg/src/LibJPEG/jdapimin.c | 43 |
1 files changed, 23 insertions, 20 deletions
diff --git a/plugins/AdvaImg/src/LibJPEG/jdapimin.c b/plugins/AdvaImg/src/LibJPEG/jdapimin.c index 65f8a491bd..c1b88f75ea 100644 --- a/plugins/AdvaImg/src/LibJPEG/jdapimin.c +++ b/plugins/AdvaImg/src/LibJPEG/jdapimin.c @@ -2,7 +2,7 @@ * jdapimin.c
*
* Copyright (C) 1994-1998, Thomas G. Lane.
- * Modified 2009 by Guido Vollbeding.
+ * Modified 2009-2013 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.
*
@@ -114,8 +114,9 @@ jpeg_abort_decompress (j_decompress_ptr cinfo) LOCAL(void)
default_decompress_parms (j_decompress_ptr cinfo)
{
+ int cid0, cid1, cid2;
+
/* Guess the input colorspace, and set output colorspace accordingly. */
- /* (Wish JPEG committee had provided a real way to specify this...) */
/* Note application may override our guesses. */
switch (cinfo->num_components) {
case 1:
@@ -124,9 +125,22 @@ default_decompress_parms (j_decompress_ptr cinfo) break;
case 3:
- if (cinfo->saw_JFIF_marker) {
- cinfo->jpeg_color_space = JCS_YCbCr; /* JFIF implies YCbCr */
- } else if (cinfo->saw_Adobe_marker) {
+ cid0 = cinfo->comp_info[0].component_id;
+ cid1 = cinfo->comp_info[1].component_id;
+ cid2 = cinfo->comp_info[2].component_id;
+
+ /* First try to guess from the component IDs */
+ if (cid0 == 0x01 && cid1 == 0x02 && cid2 == 0x03)
+ cinfo->jpeg_color_space = JCS_YCbCr;
+ else if (cid0 == 0x01 && cid1 == 0x22 && cid2 == 0x23)
+ cinfo->jpeg_color_space = JCS_BG_YCC;
+ else if (cid0 == 0x52 && cid1 == 0x47 && cid2 == 0x42)
+ cinfo->jpeg_color_space = JCS_RGB; /* ASCII 'R', 'G', 'B' */
+ else if (cid0 == 0x72 && cid1 == 0x67 && cid2 == 0x62)
+ cinfo->jpeg_color_space = JCS_BG_RGB; /* ASCII 'r', 'g', 'b' */
+ else if (cinfo->saw_JFIF_marker)
+ cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */
+ else if (cinfo->saw_Adobe_marker) {
switch (cinfo->Adobe_transform) {
case 0:
cinfo->jpeg_color_space = JCS_RGB;
@@ -136,23 +150,12 @@ default_decompress_parms (j_decompress_ptr cinfo) break;
default:
WARNMS1(cinfo, JWRN_ADOBE_XFORM, cinfo->Adobe_transform);
- cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */
+ cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */
break;
}
} else {
- /* Saw no special markers, try to guess from the component IDs */
- int cid0 = cinfo->comp_info[0].component_id;
- int cid1 = cinfo->comp_info[1].component_id;
- int cid2 = cinfo->comp_info[2].component_id;
-
- if (cid0 == 1 && cid1 == 2 && cid2 == 3)
- cinfo->jpeg_color_space = JCS_YCbCr; /* assume JFIF w/out marker */
- else if (cid0 == 82 && cid1 == 71 && cid2 == 66)
- cinfo->jpeg_color_space = JCS_RGB; /* ASCII 'R', 'G', 'B' */
- else {
- TRACEMS3(cinfo, 1, JTRC_UNKNOWN_IDS, cid0, cid1, cid2);
- cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */
- }
+ TRACEMS3(cinfo, 1, JTRC_UNKNOWN_IDS, cid0, cid1, cid2);
+ cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */
}
/* Always guess RGB is proper output colorspace. */
cinfo->out_color_space = JCS_RGB;
@@ -169,7 +172,7 @@ default_decompress_parms (j_decompress_ptr cinfo) break;
default:
WARNMS1(cinfo, JWRN_ADOBE_XFORM, cinfo->Adobe_transform);
- cinfo->jpeg_color_space = JCS_YCCK; /* assume it's YCCK */
+ cinfo->jpeg_color_space = JCS_YCCK; /* assume it's YCCK */
break;
}
} else {
|