Fix typo in SIMD dispatch routines which was causing 4:2:0 upsampling to

be used instead of 4:2:2 when decompressing JPEG images using SSE2 code

ChangeLog.txt

@@ -5,6 +5,9 @@ Significant changes since 1.0.0
 from a corrupt JPEG image.)  Previously, these would cause libjpeg-turbo to
 crash under certain circumstances.
 
+[2] Fixed typo in SIMD dispatch routines which was causing 4:2:0 upsampling to
+be used instead of 4:2:2 when decompressing JPEG images using SSE2 code.
+
 
 Significant changes since 0.0.93
 ================================

Makefile.am

@@ -113,7 +113,7 @@ test: testclean cjpeg djpeg jpegtran jpegut
 	./djpeg -dct float -ppm -outfile testoutflt.ppm $(srcdir)/testorig.jpg
 	cmp $(srcdir)/testimgint.ppm testoutint.ppm
 	cmp $(srcdir)/testimgfst.ppm testoutfst.ppm
-	cmp $(srcdir)/testorig.ppm testoutflt.ppm
+	cmp $(srcdir)/testimgflt.ppm testoutflt.ppm
 	./djpeg -dct int -bmp -colors 256 -outfile testout.bmp  $(srcdir)/testorig.jpg
 	cmp $(srcdir)/testimg.bmp testout.bmp
 	./cjpeg -dct int -progressive -outfile testoutp.jpg $(srcdir)/testorig.ppm
@@ -125,24 +125,24 @@ else
 
 test: testclean cjpeg djpeg jpegtran jpegut
 	./jpegut
-	./cjpeg -dct int -outfile testoutint.jpg $(srcdir)/testorig-nosimd.ppm
+	./cjpeg -dct int -outfile testoutint.jpg $(srcdir)/testorig.ppm
-	./cjpeg -dct fast -opt -outfile testoutfst.jpg $(srcdir)/testorig-nosimd.ppm
+	./cjpeg -dct fast -opt -outfile testoutfst.jpg $(srcdir)/testorig.ppm
-	./cjpeg -dct float -outfile testoutflt.jpg $(srcdir)/testorig-nosimd.ppm
+	./cjpeg -dct float -outfile testoutflt.jpg $(srcdir)/testorig.ppm
-	cmp $(srcdir)/testimgint-nosimd.jpg testoutint.jpg
+	cmp $(srcdir)/testimgint.jpg testoutint.jpg
-	cmp $(srcdir)/testimgfst-nosimd.jpg testoutfst.jpg
+	cmp $(srcdir)/testimgfst.jpg testoutfst.jpg
 	cmp $(srcdir)/testimgflt-nosimd.jpg testoutflt.jpg
 	./djpeg -dct int -fast -ppm -outfile testoutint.ppm $(srcdir)/testorig.jpg
 	./djpeg -dct fast -ppm -outfile testoutfst.ppm $(srcdir)/testorig.jpg
 	./djpeg -dct float -ppm -outfile testoutflt.ppm $(srcdir)/testorig.jpg
 	cmp $(srcdir)/testimgint.ppm testoutint.ppm
-	cmp $(srcdir)/testimgfst-nosimd.ppm testoutfst.ppm
+	cmp $(srcdir)/testimgfst.ppm testoutfst.ppm
-	cmp $(srcdir)/testorig-nosimd.ppm testoutflt.ppm
+	cmp $(srcdir)/testorig.ppm testoutflt.ppm
 	./djpeg -dct int -bmp -colors 256 -outfile testout.bmp  $(srcdir)/testorig.jpg
-	cmp $(srcdir)/testimg-nosimd.bmp testout.bmp
+	cmp $(srcdir)/testimg.bmp testout.bmp
-	./cjpeg -dct int -progressive -outfile testoutp.jpg $(srcdir)/testorig-nosimd.ppm
+	./cjpeg -dct int -progressive -outfile testoutp.jpg $(srcdir)/testorig.ppm
-	cmp $(srcdir)/testimgp-nosimd.jpg testoutp.jpg
+	cmp $(srcdir)/testimgp.jpg testoutp.jpg
 	./jpegtran -outfile testoutt.jpg testoutp.jpg
-	cmp $(srcdir)/testimgint-nosimd.jpg testoutt.jpg
+	cmp $(srcdir)/testimgint.jpg testoutt.jpg
 
 endif
 

simd/jsimd_i386.c

@@ -382,7 +382,7 @@ jsimd_h2v2_fancy_upsample (j_decompress_ptr cinfo,
 {
   if ((simd_support & JSIMD_SSE2) &&
       IS_ALIGNED_SSE(jconst_fancy_upsample_sse2))
-    jsimd_h2v1_fancy_upsample_sse2(cinfo->max_v_samp_factor,
+    jsimd_h2v2_fancy_upsample_sse2(cinfo->max_v_samp_factor,
         compptr->downsampled_width, input_data, output_data_ptr);
   else if (simd_support & JSIMD_MMX)
     jsimd_h2v2_fancy_upsample_mmx(cinfo->max_v_samp_factor,

simd/jsimd_x86_64.c

@@ -260,7 +260,7 @@ jsimd_h2v2_fancy_upsample (j_decompress_ptr cinfo,
                            JSAMPARRAY input_data,
                            JSAMPARRAY * output_data_ptr)
 {
-  jsimd_h2v1_fancy_upsample_sse2(cinfo->max_v_samp_factor,
+  jsimd_h2v2_fancy_upsample_sse2(cinfo->max_v_samp_factor,
                                  compptr->downsampled_width,
                                  input_data, output_data_ptr);
 }