Print a better error message.

src/images/SkImageDecoder_libjpeg.cpp

 /*
  * Copyright 2007 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "SkImageDecoder.h"
 #include "SkImageEncoder.h"
@@ skipping 267 matching lines @@
             return false;
         }
     }
     return true;
 }
 #endif
 
 // This guy exists just to aid in debugging, as it allows debuggers to just
 // set a break-point in one place to see all error exists.
 static bool return_false(const jpeg_decompress_struct& cinfo,
-                         const SkBitmap& bm, const char msg[]) {
+                         const SkBitmap& bm, const char caller[]) {
 #ifdef SK_DEBUG
+    char buffer[JMSG_LENGTH_MAX];
+    cinfo.err->format_message((const j_common_ptr)&cinfo, buffer);
     SkDebugf("libjpeg error %d <%s> from %s [%d %d]\n", cinfo.err->msg_code,
-             cinfo.err->jpeg_message_table[cinfo.err->msg_code], msg,
-             bm.width(), bm.height());
+             buffer, caller, bm.width(), bm.height());
 #endif
     return false;   // must always return false
 }
 
 // Convert a scanline of CMYK samples to RGBX in place. Note that this
 // method moves the "scanline" pointer in its processing
 static void convert_CMYK_to_RGB(uint8_t* scanline, unsigned int width) {
     // At this point we've received CMYK pixels from libjpeg. We
     // perform a crude conversion to RGB (based on the formulae
     // from easyrgb.com):
@@ skipping 848 matching lines @@
 }
 
 static SkImageEncoder* sk_libjpeg_efactory(SkImageEncoder::Type t) {
     return (SkImageEncoder::kJPEG_Type == t) ? SkNEW(SkJPEGImageEncoder) : NULL;
 }
 
 
 static SkImageDecoder_DecodeReg gDReg(sk_libjpeg_dfactory);
 static SkImageDecoder_FormatReg gFormatReg(get_format_jpeg);
 static SkImageEncoder_EncodeReg gEReg(sk_libjpeg_efactory);