Use plain upsampling if merged isn't accelerated

Currently, this only affects ARM, since it is the only platform that
accelerates YCbCr-to-RGB conversion but not merged upsampling.  Even if
"plain" upsampling isn't accelerated, the combination of accelerated
color conversion + unaccelerated plain upsampling is still faster than
the unaccelerated merged upsampling algorithms.

Closes #81
2 files changed
tree: 23ced612a0a979f273ac4f63485c8e19934dc4f1
  1. .gitignore
  2. BUILDING.md
  3. CMakeLists.txt
  4. ChangeLog.md
  5. LICENSE.md
  6. Makefile.am
  7. README.ijg
  8. README.md
  9. acinclude.m4
  10. bmp.c
  11. bmp.h
  12. cderror.h
  13. cdjpeg.c
  14. cdjpeg.h
  15. change.log
  16. cjpeg.1
  17. cjpeg.c
  18. cmakescripts/
  19. coderules.txt
  20. configure.ac
  21. djpeg.1
  22. djpeg.c
  23. doc/
  24. doxygen-extra.css
  25. doxygen.config
  26. example.c
  27. jaricom.c
  28. java/
  29. jcapimin.c
  30. jcapistd.c
  31. jcarith.c
  32. jccoefct.c
  33. jccolext.c
  34. jccolor.c
  35. jcdctmgr.c
  36. jchuff.c
  37. jchuff.h
  38. jcinit.c
  39. jcmainct.c
  40. jcmarker.c
  41. jcmaster.c
  42. jcomapi.c
  43. jconfig.h.in
  44. jconfig.txt
  45. jconfigint.h.in
  46. jcparam.c
  47. jcphuff.c
  48. jcprepct.c
  49. jcsample.c
  50. jcstest.c
  51. jctrans.c
  52. jdapimin.c
  53. jdapistd.c
  54. jdarith.c
  55. jdatadst-tj.c
  56. jdatadst.c
  57. jdatasrc-tj.c
  58. jdatasrc.c
  59. jdcoefct.c
  60. jdcoefct.h
  61. jdcol565.c
  62. jdcolext.c
  63. jdcolor.c
  64. jdct.h
  65. jddctmgr.c
  66. jdhuff.c
  67. jdhuff.h
  68. jdinput.c
  69. jdmainct.c
  70. jdmainct.h
  71. jdmarker.c
  72. jdmaster.c
  73. jdmaster.h
  74. jdmerge.c
  75. jdmrg565.c
  76. jdmrgext.c
  77. jdphuff.c
  78. jdpostct.c
  79. jdsample.c
  80. jdsample.h
  81. jdtrans.c
  82. jerror.c
  83. jerror.h
  84. jfdctflt.c
  85. jfdctfst.c
  86. jfdctint.c
  87. jidctflt.c
  88. jidctfst.c
  89. jidctint.c
  90. jidctred.c
  91. jinclude.h
  92. jmemmgr.c
  93. jmemnobs.c
  94. jmemsys.h
  95. jmorecfg.h
  96. jpeg_nbits_table.h
  97. jpegcomp.h
  98. jpegint.h
  99. jpeglib.h
  100. jpegtran.1
  101. jpegtran.c
  102. jquant1.c
  103. jquant2.c
  104. jsimd.h
  105. jsimd_none.c
  106. jsimddct.h
  107. jstdhuff.c
  108. jutils.c
  109. jversion.h
  110. libjpeg.map.in
  111. libjpeg.txt
  112. md5/
  113. rdbmp.c
  114. rdcolmap.c
  115. rdgif.c
  116. rdjpgcom.1
  117. rdjpgcom.c
  118. rdppm.c
  119. rdrle.c
  120. rdswitch.c
  121. rdtarga.c
  122. release/
  123. sharedlib/
  124. simd/
  125. structure.txt
  126. testimages/
  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. win/
  143. wizard.txt
  144. wrbmp.c
  145. wrgif.c
  146. wrjpgcom.1
  147. wrjpgcom.c
  148. wrppm.c
  149. wrppm.h
  150. wrrle.c
  151. wrtarga.c