Merge libjpeg-turbo 2.0.5

* tag '2.0.5': TurboJPEG: Make global error handling thread-safe ChangeLog.md: Add missing sub-header for 2.0.5 ChangeLog.md: List CVE ID fixed by previous commit rdppm.c: Fix buf overrun caused by bad binary PPM Build: Add missing jpegtran-icc test dependency rdswitch.c: Eliminate spaces before semicolons TJCompressor.compress(int): Fix YUV-to-JPEG error Bump version to 2.0.5; Document previous commit MIPS DSPr2: Work around various 'make test' errors MIPS DSPr2: Fix compiler warning with -mdspr2 MIPS SIMD: Always honor JSIMD_FORCE* env vars Test: Honor CMAKE_CROSSCOMPILING_EMULATOR variable
2020-08-15 18:11:20 +01:00
parent 6d95c51adf ae87a95861
commit b3e739028a
11 changed files with 174 additions and 73 deletions
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,7 +5,7 @@ if(CMAKE_EXECUTABLE_SUFFIX)
 endif()

 project(mozjpeg C)
-set(VERSION 4.0.0)
+set(VERSION 4.0.1)
 string(REPLACE "." ";" VERSION_TRIPLET ${VERSION})
 list(GET VERSION_TRIPLET 0 VERSION_MAJOR)
 list(GET VERSION_TRIPLET 1 VERSION_MINOR)
@@ -453,6 +453,21 @@ if(NOT INLINE_WORKS)
 endif()
 message(STATUS "INLINE = ${INLINE} (FORCE_INLINE = ${FORCE_INLINE})")

+if(WITH_TURBOJPEG)
+  if(MSVC)
+    set(THREAD_LOCAL "__declspec(thread)")
+  else()
+    set(THREAD_LOCAL "__thread")
+  endif()
+  check_c_source_compiles("${THREAD_LOCAL} int i;  int main(void) { i = 0;  return i; }" HAVE_THREAD_LOCAL)
+  if(HAVE_THREAD_LOCAL)
+    message(STATUS "THREAD_LOCAL = ${THREAD_LOCAL}")
+  else()
+    message(WARNING "Thread-local storage is not available.  The TurboJPEG API library's global error handler will not be thread-safe.")
+    unset(THREAD_LOCAL)
+  endif()
+endif()
+
 if(UNIX AND NOT APPLE)
  file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/conftest.map "VERS_1 { global: *; };")
  set(CMAKE_REQUIRED_FLAGS
@@ -923,12 +938,18 @@ foreach(libtype ${TEST_LIBTYPES})
    set(suffix -static)
  endif()
  if(WITH_TURBOJPEG)
-    add_test(tjunittest-${libtype} tjunittest${suffix})
-    add_test(tjunittest-${libtype}-alloc tjunittest${suffix} -alloc)
-    add_test(tjunittest-${libtype}-yuv tjunittest${suffix} -yuv)
-    add_test(tjunittest-${libtype}-yuv-alloc tjunittest${suffix} -yuv -alloc)
-    add_test(tjunittest-${libtype}-yuv-nopad tjunittest${suffix} -yuv -noyuvpad)
-    add_test(tjunittest-${libtype}-bmp tjunittest${suffix} -bmp)
+    add_test(tjunittest-${libtype}
+      ${CMAKE_CROSSCOMPILING_EMULATOR} tjunittest${suffix})
+    add_test(tjunittest-${libtype}-alloc
+      ${CMAKE_CROSSCOMPILING_EMULATOR} tjunittest${suffix} -alloc)
+    add_test(tjunittest-${libtype}-yuv
+      ${CMAKE_CROSSCOMPILING_EMULATOR} tjunittest${suffix} -yuv)
+    add_test(tjunittest-${libtype}-yuv-alloc
+      ${CMAKE_CROSSCOMPILING_EMULATOR} tjunittest${suffix} -yuv -alloc)
+    add_test(tjunittest-${libtype}-yuv-nopad
+      ${CMAKE_CROSSCOMPILING_EMULATOR} tjunittest${suffix} -yuv -noyuvpad)
+    add_test(tjunittest-${libtype}-bmp
+      ${CMAKE_CROSSCOMPILING_EMULATOR} tjunittest${suffix} -bmp)

    set(MD5_PPM_GRAY_TILE 89d3ca21213d9d864b50b4e4e7de4ca6)
    set(MD5_PPM_420_8x8_TILE 847fceab15c5b7b911cb986cf0f71de3)
@@ -953,22 +974,23 @@ foreach(libtype ${TEST_LIBTYPES})
      ${CMAKE_COMMAND} -E copy_if_different ${TESTIMAGES}/testorig.ppm
        testout_tile.ppm)
    add_test(tjbench-${libtype}-tile
-      tjbench${suffix} testout_tile.ppm 95 -rgb -quiet -tile -benchtime 0.01
-        -warmup 0)
+      ${CMAKE_CROSSCOMPILING_EMULATOR} tjbench${suffix} testout_tile.ppm 95
+        -rgb -quiet -tile -benchtime 0.01 -warmup 0)
    set_tests_properties(tjbench-${libtype}-tile
      PROPERTIES DEPENDS tjbench-${libtype}-tile-cp)

    foreach(tile 8 16 32 64 128)
      add_test(tjbench-${libtype}-tile-gray-${tile}x${tile}-cmp
-        ${MD5CMP} ${MD5_PPM_GRAY_TILE}
+        ${CMAKE_CROSSCOMPILING_EMULATOR} ${MD5CMP} ${MD5_PPM_GRAY_TILE}
          testout_tile_GRAY_Q95_${tile}x${tile}.ppm)
      foreach(subsamp 420 422)
        add_test(tjbench-${libtype}-tile-${subsamp}-${tile}x${tile}-cmp
-          ${MD5CMP} ${MD5_PPM_${subsamp}_${tile}x${tile}_TILE}
+          ${CMAKE_CROSSCOMPILING_EMULATOR} ${MD5CMP}
+            ${MD5_PPM_${subsamp}_${tile}x${tile}_TILE}
            testout_tile_${subsamp}_Q95_${tile}x${tile}.ppm)
      endforeach()
      add_test(tjbench-${libtype}-tile-444-${tile}x${tile}-cmp
-        ${MD5CMP} ${MD5_PPM_444_TILE}
+        ${CMAKE_CROSSCOMPILING_EMULATOR} ${MD5CMP} ${MD5_PPM_444_TILE}
          testout_tile_444_Q95_${tile}x${tile}.ppm)
      foreach(subsamp gray 420 422 444)
        set_tests_properties(tjbench-${libtype}-tile-${subsamp}-${tile}x${tile}-cmp
@@ -980,19 +1002,22 @@ foreach(libtype ${TEST_LIBTYPES})
      ${CMAKE_COMMAND} -E copy_if_different ${TESTIMAGES}/testorig.ppm
        testout_tilem.ppm)
    add_test(tjbench-${libtype}-tilem
-      tjbench${suffix} testout_tilem.ppm 95 -rgb -fastupsample -quiet -tile
-        -benchtime 0.01 -warmup 0)
+      ${CMAKE_CROSSCOMPILING_EMULATOR} tjbench${suffix} testout_tilem.ppm 95
+        -rgb -fastupsample -quiet -tile -benchtime 0.01 -warmup 0)
    set_tests_properties(tjbench-${libtype}-tilem
      PROPERTIES DEPENDS tjbench-${libtype}-tilem-cp)

    add_test(tjbench-${libtype}-tile-420m-8x8-cmp
-      ${MD5CMP} ${MD5_PPM_420M_8x8_TILE} testout_tilem_420_Q95_8x8.ppm)
+      ${CMAKE_CROSSCOMPILING_EMULATOR} ${MD5CMP} ${MD5_PPM_420M_8x8_TILE}
+        testout_tilem_420_Q95_8x8.ppm)
    add_test(tjbench-${libtype}-tile-422m-8x8-cmp
-      ${MD5CMP} ${MD5_PPM_422M_8x8_TILE} testout_tilem_422_Q95_8x8.ppm)
+      ${CMAKE_CROSSCOMPILING_EMULATOR} ${MD5CMP} ${MD5_PPM_422M_8x8_TILE}
+        testout_tilem_422_Q95_8x8.ppm)
    foreach(tile 16 32 64 128)
      foreach(subsamp 420 422)
        add_test(tjbench-${libtype}-tile-${subsamp}m-${tile}x${tile}-cmp
-          ${MD5CMP} ${MD5_PPM_${subsamp}M_TILE}
+          ${CMAKE_CROSSCOMPILING_EMULATOR} ${MD5CMP}
+            ${MD5_PPM_${subsamp}M_TILE}
            testout_tilem_${subsamp}_Q95_${tile}x${tile}.ppm)
      endforeach()
    endforeach()
@@ -1010,9 +1035,10 @@ foreach(libtype ${TEST_LIBTYPES})

  macro(add_bittest PROG NAME ARGS OUTFILE INFILE MD5SUM)
    add_test(${PROG}-${libtype}-${NAME}
-      ${PROG}${suffix} ${ARGS} -outfile ${OUTFILE} ${INFILE})
+      ${CMAKE_CROSSCOMPILING_EMULATOR} ${PROG}${suffix} ${ARGS}
+        -outfile ${OUTFILE} ${INFILE})
    add_test(${PROG}-${libtype}-${NAME}-cmp
-      ${MD5CMP} ${MD5SUM} ${OUTFILE})
+      ${CMAKE_CROSSCOMPILING_EMULATOR} ${MD5CMP} ${MD5SUM} ${OUTFILE})
    set_tests_properties(${PROG}-${libtype}-${NAME}-cmp PROPERTIES
      DEPENDS ${PROG}-${libtype}-${NAME})
    if(${ARGC} GREATER 6)
@@ -1033,12 +1059,14 @@ foreach(libtype ${TEST_LIBTYPES})
    ${MD5_PPM_RGB_ISLOW} cjpeg-${libtype}-rgb-islow)

  add_test(djpeg-${libtype}-rgb-islow-icc-cmp
-    ${MD5CMP} b06a39d730129122e85c1363ed1bbc9e testout_rgb_islow.icc)
+    ${CMAKE_CROSSCOMPILING_EMULATOR} ${MD5CMP}
+      b06a39d730129122e85c1363ed1bbc9e testout_rgb_islow.icc)
  set_tests_properties(djpeg-${libtype}-rgb-islow-icc-cmp PROPERTIES
    DEPENDS djpeg-${libtype}-rgb-islow)

  add_bittest(jpegtran icc "-copy;all;-icc;${TESTIMAGES}/test2.icc"
-    testout_rgb_islow2.jpg testout_rgb_islow.jpg ${MD5_JPEG_RGB_ISLOW2})
+    testout_rgb_islow2.jpg testout_rgb_islow.jpg
+    ${MD5_JPEG_RGB_ISLOW2} cjpeg-${libtype}-rgb-islow)

  if(NOT WITH_12BIT)
    # CC: RGB->RGB565  SAMP: fullsize  IDCT: islow  ENT: huff
@@ -1251,7 +1279,7 @@ foreach(libtype ${TEST_LIBTYPES})

  # Context rows: Yes  Intra-iMCU row: No   iMCU row prefetch: No   ENT: prog huff
  add_test(cjpeg-${libtype}-420-islow-prog
-    cjpeg${suffix} -dct int -prog
+    ${CMAKE_CROSSCOMPILING_EMULATOR} cjpeg${suffix} -dct int -prog
      -outfile testout_420_islow_prog.jpg ${TESTIMAGES}/testorig.ppm)
  add_bittest(djpeg 420-islow-prog-crop62x62_71_71
    "-dct;int;-crop;62x62+71+71;-ppm"
@@ -1268,7 +1296,7 @@ foreach(libtype ${TEST_LIBTYPES})

  # Context rows: No   Intra-iMCU row: Yes  ENT: huff
  add_test(cjpeg-${libtype}-444-islow
-    cjpeg${suffix} -dct int -sample 1x1
+    ${CMAKE_CROSSCOMPILING_EMULATOR} cjpeg${suffix} -dct int -sample 1x1
      -outfile testout_444_islow.jpg ${TESTIMAGES}/testorig.ppm)
  add_bittest(djpeg 444-islow-skip1_6 "-dct;int;-skip;1,6;-ppm"
    testout_444_islow_skip1,6.ppm testout_444_islow.jpg
@@ -1276,7 +1304,7 @@ foreach(libtype ${TEST_LIBTYPES})

  # Context rows: No   Intra-iMCU row: No   ENT: prog huff
  add_test(cjpeg-${libtype}-444-islow-prog
-    cjpeg${suffix} -dct int -prog -sample 1x1
+    ${CMAKE_CROSSCOMPILING_EMULATOR} cjpeg${suffix} -dct int -prog -sample 1x1
      -outfile testout_444_islow_prog.jpg ${TESTIMAGES}/testorig.ppm)
  add_bittest(djpeg 444-islow-prog-crop98x98_13_13
    "-dct;int;-crop;98x98+13+13;-ppm"
@@ -1286,8 +1314,9 @@ foreach(libtype ${TEST_LIBTYPES})
  # Context rows: No   Intra-iMCU row: No   ENT: arith
  if(WITH_ARITH_ENC)
    add_test(cjpeg-${libtype}-444-islow-ari
-      cjpeg${suffix} -dct int -arithmetic -sample 1x1
-        -outfile testout_444_islow_ari.jpg ${TESTIMAGES}/testorig.ppm)
+      ${CMAKE_CROSSCOMPILING_EMULATOR} cjpeg${suffix} -dct int -arithmetic
+        -sample 1x1 -outfile testout_444_islow_ari.jpg
+        ${TESTIMAGES}/testorig.ppm)
    if(WITH_ARITH_DEC)
      add_bittest(djpeg 444-islow-ari-crop37x37_0_0
        "-dct;int;-crop;37x37+0+0;-ppm"
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,33 @@
+2.0.5
+=====
+
+### Significant changes relative to 2.0.4:
+
+1. Worked around issues in the MIPS DSPr2 SIMD extensions that caused failures
+in the libjpeg-turbo regression tests.  Specifically, the
+`jsimd_h2v1_downsample_dspr2()` and `jsimd_h2v2_downsample_dspr2()` functions
+in the MIPS DSPr2 SIMD extensions are now disabled until/unless they can be
+fixed, and other functions that are incompatible with big endian MIPS CPUs are
+disabled when building libjpeg-turbo for such CPUs.
+
+2. Fixed an oversight in the `TJCompressor.compress(int)` method in the
+TurboJPEG Java API that caused an error ("java.lang.IllegalStateException: No
+source image is associated with this instance") when attempting to use that
+method to compress a YUV image.
+
+3. Fixed an issue (CVE-2020-13790) in the PPM reader that caused a buffer
+overrun in cjpeg, TJBench, or the `tjLoadImage()` function if one of the values
+in a binary PPM/PGM input file exceeded the maximum value defined in the file's
+header and that maximum value was less than 255.  libjpeg-turbo 1.5.0 already
+included a similar fix for binary PPM/PGM files with maximum values greater
+than 255.
+
+4. The TurboJPEG API library's global error handler, which is used in functions
+such as `tjBufSize()` and `tjLoadImage()` that do not require a TurboJPEG
+instance handle, is now thread-safe on platforms that support thread-local
+storage.
+
+
 2.0.4
 =====

@@ -562,10 +592,10 @@ application was linked against.

 3. Fixed a couple of issues in the PPM reader that would cause buffer overruns
 in cjpeg if one of the values in a binary PPM/PGM input file exceeded the
-maximum value defined in the file's header.  libjpeg-turbo 1.4.2 already
-included a similar fix for ASCII PPM/PGM files.  Note that these issues were
-not security bugs, since they were confined to the cjpeg program and did not
-affect any of the libjpeg-turbo libraries.
+maximum value defined in the file's header and that maximum value was greater
+than 255.  libjpeg-turbo 1.4.2 already included a similar fix for ASCII PPM/PGM
+files.  Note that these issues were not security bugs, since they were confined
+to the cjpeg program and did not affect any of the libjpeg-turbo libraries.

 4. Fixed an issue whereby attempting to decompress a JPEG file with a corrupt
 header using the `tjDecompressToYUV2()` function would cause the function to
--- a/doc/html/group___turbo_j_p_e_g.html
+++ b/doc/html/group___turbo_j_p_e_g.html
@@ -2129,7 +2129,7 @@ If you choose option 1, <code>*jpegSize</code> should be set to the size of your
 <p>Returns a descriptive error message explaining why the last command failed. </p>
 <dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
-    <tr><td class="paramname">handle</td><td>a handle to a TurboJPEG compressor, decompressor, or transformer instance, or NULL if the error was generated by a global function (but note that retrieving the error message for a global function is not thread-safe.)</td></tr>
+    <tr><td class="paramname">handle</td><td>a handle to a TurboJPEG compressor, decompressor, or transformer instance, or NULL if the error was generated by a global function (but note that retrieving the error message for a global function is thread-safe only on platforms that support thread-local storage.)</td></tr>
  </table>
  </dd>
 </dl>
--- a/java/org/libjpegturbo/turbojpeg/TJCompressor.java
+++ b/java/org/libjpegturbo/turbojpeg/TJCompressor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C)2011-2015, 2018 D. R. Commander.  All Rights Reserved.
+ * Copyright (C)2011-2015, 2018, 2020 D. R. Commander.  All Rights Reserved.
 * Copyright (C)2015 Viktor Szathmáry.  All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
@@ -377,8 +377,15 @@ public class TJCompressor implements Closeable {
   * #getCompressedSize} to obtain the size of the JPEG image.
   */
  public byte[] compress(int flags) throws TJException {
+    byte[] buf;
+    if (srcYUVImage != null) {
+      buf = new byte[TJ.bufSize(srcYUVImage.getWidth(),
+                                srcYUVImage.getHeight(),
+                                srcYUVImage.getSubsamp())];
+    } else {
      checkSourceImage();
-    byte[] buf = new byte[TJ.bufSize(srcWidth, srcHeight, subsamp)];
+      buf = new byte[TJ.bufSize(srcWidth, srcHeight, subsamp)];
+    }
    compress(buf, flags);
    return buf;
  }
--- a/jconfigint.h.in
+++ b/jconfigint.h.in
@@ -7,6 +7,9 @@
 /* How to obtain function inlining. */
 #define INLINE  @INLINE@

+/* How to obtain thread-local storage */
+#define THREAD_LOCAL  @THREAD_LOCAL@
+
 /* Define to the full name of this package. */
 #define PACKAGE_NAME  "@CMAKE_PROJECT_NAME@"

--- a/jpegtran.c
+++ b/jpegtran.c
@@ -690,7 +690,6 @@ main (int argc, char **argv)
  free(inbuffer);
  free(outbuffer);

-  if (icc_profile != NULL)
  free(icc_profile);

  /* All done. */
--- a/rdppm.c
+++ b/rdppm.c
@@ -5,7 +5,7 @@
 * Copyright (C) 1991-1997, Thomas G. Lane.
 * Modified 2009 by Bill Allombert, Guido Vollbeding.
 * libjpeg-turbo Modifications:
- * Copyright (C) 2015-2017, D. R. Commander.
+ * Copyright (C) 2015-2017, 2020, D. R. Commander.
 * For conditions of distribution and use, see the accompanying README.ijg
 * file.
 *
@@ -720,7 +720,7 @@ start_input_ppm(j_compress_ptr cinfo, cjpeg_source_ptr sinfo)
    /* On 16-bit-int machines we have to be careful of maxval = 65535 */
    source->rescale = (JSAMPLE *)
      (*cinfo->mem->alloc_small) ((j_common_ptr)cinfo, JPOOL_IMAGE,
-                                  (size_t)(((long)maxval + 1L) *
+                                  (size_t)(((long)MAX(maxval, 255) + 1L) *
                                           sizeof(JSAMPLE)));
    half_maxval = maxval / 2;
    for (val = 0; val <= (long)maxval; val++) {
--- a/rdswitch.c
+++ b/rdswitch.c
@@ -541,8 +541,8 @@ set_quality_ratings (j_compress_ptr cinfo, char *arg, boolean force_baseline)
 #else
      q_scale_factor[tblno] = jpeg_float_quality_scaling(val);
 #endif
-      while (*arg && *arg++ != ',') /* advance to next segment of arg string */
-        ;
+      while (*arg && *arg++ != ','); /* advance to next segment of arg
+                                        string */
    } else {
      /* reached end of parameter, set remaining factors to last value */
 #if JPEG_LIB_VERSION >= 70
@@ -592,8 +592,8 @@ set_quant_slots (j_compress_ptr cinfo, char *arg)
        return FALSE;
      }
      cinfo->comp_info[ci].quant_tbl_no = val;
-      while (*arg && *arg++ != ',') /* advance to next segment of arg string */
-        ;
+      while (*arg && *arg++ != ','); /* advance to next segment of arg
+                                        string */
    } else {
      /* reached end of parameter, set remaining components to last table */
      cinfo->comp_info[ci].quant_tbl_no = val;
@@ -626,8 +626,8 @@ set_sample_factors (j_compress_ptr cinfo, char *arg)
      }
      cinfo->comp_info[ci].h_samp_factor = val1;
      cinfo->comp_info[ci].v_samp_factor = val2;
-      while (*arg && *arg++ != ',') /* advance to next segment of arg string */
-        ;
+      while (*arg && *arg++ != ',');  /* advance to next segment of arg
+                                         string */
    } else {
      /* reached end of parameter, set remaining components to 1x1 sampling */
      cinfo->comp_info[ci].h_samp_factor = 1;
--- a/simd/mips/jsimd.c
+++ b/simd/mips/jsimd.c
@@ -2,7 +2,7 @@
 * jsimd_mips.c
 *
 * Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
- * Copyright (C) 2009-2011, 2014, 2016, 2018, D. R. Commander.
+ * Copyright (C) 2009-2011, 2014, 2016, 2018, 2020, D. R. Commander.
 * Copyright (C) 2013-2014, MIPS Technologies, Inc., California.
 * Copyright (C) 2015-2016, 2018, Matthieu Darbois.
 *
@@ -29,9 +29,9 @@

 static unsigned int simd_support = ~0;

-#if defined(__linux__)
+#if !(defined(__mips_dsp) && (__mips_dsp_rev >= 2)) && defined(__linux__)

-LOCAL(int)
+LOCAL(void)
 parse_proc_cpuinfo(const char *search_string)
 {
  const char *file_name = "/proc/cpuinfo";
@@ -45,13 +45,12 @@ parse_proc_cpuinfo(const char *search_string)
      if (strstr(cpuinfo_line, search_string) != NULL) {
        fclose(f);
        simd_support |= JSIMD_DSPR2;
-        return 1;
+        return;
      }
    }
    fclose(f);
  }
  /* Did not find string in the proc file, or not Linux ELF. */
-  return 0;
 }

 #endif
@@ -73,14 +72,13 @@ init_simd(void)

  simd_support = 0;

-#if defined(__MIPSEL__) && defined(__mips_dsp) && (__mips_dsp_rev >= 2)
+#if defined(__mips_dsp) && (__mips_dsp_rev >= 2)
  simd_support |= JSIMD_DSPR2;
 #elif defined(__linux__)
  /* We still have a chance to use MIPS DSPR2 regardless of globally used
   * -mdspr2 options passed to gcc by performing runtime detection via
   * /proc/cpuinfo parsing on linux */
-  if (!parse_proc_cpuinfo("MIPS 74K"))
-    return;
+  parse_proc_cpuinfo("MIPS 74K");
 #endif

 #ifndef NO_GETENV
@@ -340,8 +338,13 @@ jsimd_can_h2v2_downsample(void)
  if (sizeof(JDIMENSION) != 4)
    return 0;

+  /* FIXME: jsimd_h2v2_downsample_dspr2() fails some of the TJBench tiling
+   * regression tests, probably because the DSPr2 SIMD implementation predates
+   * those tests. */
+#if 0
  if (simd_support & JSIMD_DSPR2)
    return 1;
+#endif

  return 0;
 }
@@ -376,8 +379,13 @@ jsimd_can_h2v1_downsample(void)
  if (sizeof(JDIMENSION) != 4)
    return 0;

+  /* FIXME: jsimd_h2v1_downsample_dspr2() fails some of the TJBench tiling
+   * regression tests, probably because the DSPr2 SIMD implementation predates
+   * those tests. */
+#if 0
  if (simd_support & JSIMD_DSPR2)
    return 1;
+#endif

  return 0;
 }
@@ -441,8 +449,10 @@ jsimd_can_h2v1_upsample(void)
  if (sizeof(JDIMENSION) != 4)
    return 0;

+#if defined(__MIPSEL__)
  if (simd_support & JSIMD_DSPR2)
    return 1;
+#endif

  return 0;
 }
@@ -503,8 +513,10 @@ jsimd_can_h2v2_fancy_upsample(void)
  if (sizeof(JDIMENSION) != 4)
    return 0;

+#if defined(__MIPSEL__)
  if (simd_support & JSIMD_DSPR2)
    return 1;
+#endif

  return 0;
 }
@@ -520,8 +532,10 @@ jsimd_can_h2v1_fancy_upsample(void)
  if (sizeof(JDIMENSION) != 4)
    return 0;

+#if defined(__MIPSEL__)
  if (simd_support & JSIMD_DSPR2)
    return 1;
+#endif

  return 0;
 }
@@ -669,8 +683,10 @@ jsimd_can_convsamp(void)
  if (sizeof(DCTELEM) != 2)
    return 0;

+#if defined(__MIPSEL__)
  if (simd_support & JSIMD_DSPR2)
    return 1;
+#endif

  return 0;
 }
@@ -727,8 +743,10 @@ jsimd_can_fdct_islow(void)
  if (sizeof(DCTELEM) != 2)
    return 0;

+#if defined(__MIPSEL__)
  if (simd_support & JSIMD_DSPR2)
    return 1;
+#endif

  return 0;
 }
@@ -744,8 +762,10 @@ jsimd_can_fdct_ifast(void)
  if (sizeof(DCTELEM) != 2)
    return 0;

+#if defined(__MIPSEL__)
  if (simd_support & JSIMD_DSPR2)
    return 1;
+#endif

  return 0;
 }
@@ -872,8 +892,10 @@ jsimd_can_idct_4x4(void)
  if (sizeof(ISLOW_MULT_TYPE) != 2)
    return 0;

+#if defined(__MIPSEL__)
  if (simd_support & JSIMD_DSPR2)
    return 1;
+#endif

  return 0;
 }
@@ -1017,8 +1039,10 @@ jsimd_can_idct_ifast(void)
  if (IFAST_SCALE_BITS != 2)
    return 0;

+#if defined(__MIPSEL__)
  if (simd_support & JSIMD_DSPR2)
    return 1;
+#endif

  return 0;
 }
--- a/turbojpeg.c
+++ b/turbojpeg.c
@@ -1,5 +1,7 @@
 /*
- * Copyright (C)2009-2019 D. R. Commander.  All Rights Reserved.
+ * Copyright (C)2009-2020 D. R. Commander.  All Rights Reserved.
+ * mozjpeg Modifications:
+ * Copyright (C) 2014, Mozilla Corporation.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
@@ -43,6 +45,7 @@
 #include "transupp.h"
 #include "./jpegcomp.h"
 #include "./cdjpeg.h"
+#include "jconfigint.h"

 extern void jpeg_mem_dest_tj(j_compress_ptr, unsigned char **, unsigned long *,
                             boolean);
@@ -55,7 +58,7 @@ extern void jpeg_mem_src_tj(j_decompress_ptr, const unsigned char *,

 /* Error handling (based on example in example.txt) */

-static char errStr[JMSG_LENGTH_MAX] = "No error";
+static THREAD_LOCAL char errStr[JMSG_LENGTH_MAX] = "No error";

 struct my_error_mgr {
  struct jpeg_error_mgr pub;
@@ -243,6 +246,8 @@ static int setCompDefaults(struct jpeg_compress_struct *cinfo, int pixelFormat,

  cinfo->in_color_space = pf2cs[pixelFormat];
  cinfo->input_components = tjPixelSize[pixelFormat];
+	if((env=getenv("TJ_REVERT"))!=NULL && strlen(env)>0 && !strcmp(env, "1"))
+		cinfo->master->compress_profile=JCP_FASTEST;
  jpeg_set_defaults(cinfo);

 #ifndef NO_GETENV
@@ -289,6 +294,10 @@ static int setCompDefaults(struct jpeg_compress_struct *cinfo, int pixelFormat,
    jpeg_simple_progression(cinfo);
 #endif

+	/* Set scan pattern again as colorspace might have changed */
+	if(cinfo->master->compress_profile == JCP_MAX_COMPRESSION)
+		jpeg_simple_progression(cinfo);
+
  cinfo->comp_info[0].h_samp_factor = tjMCUWidth[subsamp] / 8;
  cinfo->comp_info[1].h_samp_factor = 1;
  cinfo->comp_info[2].h_samp_factor = 1;
--- a/turbojpeg.h
+++ b/turbojpeg.h
@@ -1650,7 +1650,7 @@ DLLEXPORT void tjFree(unsigned char *buffer);
 * @param handle a handle to a TurboJPEG compressor, decompressor, or
 * transformer instance, or NULL if the error was generated by a global
 * function (but note that retrieving the error message for a global function
- * is not thread-safe.)
+ * is thread-safe only on platforms that support thread-local storage.)
 *
 * @return a descriptive error message explaining why the last command failed.
 */