AltiVec SIMD implementation of fast integer inverse DCT

git-svn-id: svn://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1445 632fc199-4ca6-4c93-a231-07263d6284db
2014-12-18 10:12:29 +00:00
parent 7475e59637
commit c7dadd2d0b
3 changed files with 231 additions and 0 deletions
--- a/simd/jsimd.h
+++ b/simd/jsimd.h
@@ -667,6 +667,10 @@ EXTERN(void) jsimd_idct_ifast_rows_mips_dspr2
        (DCTELEM * wsptr, JSAMPARRAY output_buf, JDIMENSION output_col,
         const int * idct_coefs);

+EXTERN(void) jsimd_idct_ifast_altivec
+        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,
+         JDIMENSION output_col);
+
 /* Floating Point Inverse DCT */
 EXTERN(void) jsimd_idct_float_3dnow
        (void * dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf,