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fuchsia / third_party / libjpeg-turbo / 219470d6acffbad6fc121adb5486d1c43d25defb
commit219470d6acffbad6fc121adb5486d1c43d25defb[log] [tgz]
authorDRC <information@libjpeg-turbo.org>Sun Feb 07 20:36:02 2016 -0600
committerDRC <information@libjpeg-turbo.org>Sun Feb 07 21:51:11 2016 -0600
tree3fb918900c9b3dd2e72a30ab211ee78f5e863379
parent15aaa7f7e21af6066e22ab18fbd02576078351ff [diff]
ARM64 NEON SIMD implementation of Huffman encoding

Full-color compression speedups relative to previous commits:
Cortex-A53 (Nexus 5X), Android, 64-bit: 1.1-13% (avg. 6.0%)
Cortex-A57 (Nexus 5X), Android, 64-bit: 0.0-22% (avg. 6.3%)

Refer to #47 and #50 for discussion

Closes #50

Note that this commit introduces a similar /proc/cpuinfo parser to that
of the ARM32 implementation.  It is used to specifically check whether
the code is running on Cavium ThunderX and, if so, disable the ARM64
SIMD Huffman routines (which slow performance by an average of 8% on
that CPU.)

Based on:
https://github.com/mayeut/libjpeg-turbo/commit/a8c282e5e5ac10a715d6d6a9ab22121982b485f6
2 files changed
tree: 3fb918900c9b3dd2e72a30ab211ee78f5e863379
  1. cmakescripts/
  2. doc/
  3. java/
  4. md5/
  5. release/
  6. sharedlib/
  7. simd/
  8. testimages/
  9. win/
  10. .gitignore
  11. acinclude.m4
  12. bmp.c
  13. bmp.h
  14. BUILDING.md
  15. cderror.h
  16. cdjpeg.c
  17. cdjpeg.h
  18. change.log
  19. ChangeLog.txt
  20. cjpeg.1
  21. cjpeg.c
  22. CMakeLists.txt
  23. coderules.txt
  24. configure.ac
  25. djpeg.1
  26. djpeg.c
  27. doxygen-extra.css
  28. doxygen.config
  29. example.c
  30. jaricom.c
  31. jcapimin.c
  32. jcapistd.c
  33. jcarith.c
  34. jccoefct.c
  35. jccolext.c
  36. jccolor.c
  37. jcdctmgr.c
  38. jchuff.c
  39. jchuff.h
  40. jcinit.c
  41. jcmainct.c
  42. jcmarker.c
  43. jcmaster.c
  44. jcomapi.c
  45. jconfig.h.in
  46. jconfig.txt
  47. jconfigint.h.in
  48. jcparam.c
  49. jcphuff.c
  50. jcprepct.c
  51. jcsample.c
  52. jcstest.c
  53. jctrans.c
  54. jdapimin.c
  55. jdapistd.c
  56. jdarith.c
  57. jdatadst-tj.c
  58. jdatadst.c
  59. jdatasrc-tj.c
  60. jdatasrc.c
  61. jdcoefct.c
  62. jdcoefct.h
  63. jdcol565.c
  64. jdcolext.c
  65. jdcolor.c
  66. jdct.h
  67. jddctmgr.c
  68. jdhuff.c
  69. jdhuff.h
  70. jdinput.c
  71. jdmainct.c
  72. jdmainct.h
  73. jdmarker.c
  74. jdmaster.c
  75. jdmerge.c
  76. jdmrg565.c
  77. jdmrgext.c
  78. jdphuff.c
  79. jdpostct.c
  80. jdsample.c
  81. jdsample.h
  82. jdtrans.c
  83. jerror.c
  84. jerror.h
  85. jfdctflt.c
  86. jfdctfst.c
  87. jfdctint.c
  88. jidctflt.c
  89. jidctfst.c
  90. jidctint.c
  91. jidctred.c
  92. jinclude.h
  93. jmemmgr.c
  94. jmemnobs.c
  95. jmemsys.h
  96. jmorecfg.h
  97. jpeg_nbits_table.h
  98. jpegcomp.h
  99. jpegint.h
  100. jpeglib.h
  101. jpegtran.1
  102. jpegtran.c
  103. jquant1.c
  104. jquant2.c
  105. jsimd.h
  106. jsimd_none.c
  107. jsimddct.h
  108. jstdhuff.c
  109. jutils.c
  110. jversion.h
  111. libjpeg.map.in
  112. libjpeg.txt
  113. LICENSE.md
  114. Makefile.am
  115. rdbmp.c
  116. rdcolmap.c
  117. rdgif.c
  118. rdjpgcom.1
  119. rdjpgcom.c
  120. rdppm.c
  121. rdrle.c
  122. rdswitch.c
  123. rdtarga.c
  124. README.ijg
  125. README.md
  126. structure.txt
  127. tjbench.c
  128. tjbenchtest.in
  129. tjbenchtest.java.in
  130. tjexampletest.in
  131. tjunittest.c
  132. tjutil.c
  133. tjutil.h
  134. transupp.c
  135. transupp.h
  136. turbojpeg-jni.c
  137. turbojpeg-mapfile
  138. turbojpeg-mapfile.jni
  139. turbojpeg.c
  140. turbojpeg.h
  141. usage.txt
  142. wizard.txt
  143. wrbmp.c
  144. wrgif.c
  145. wrjpgcom.1
  146. wrjpgcom.c
  147. wrppm.c
  148. wrrle.c
  149. wrtarga.c