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author | Diego Biurrun <diego@biurrun.de> | 2008-02-13 01:18:12 +0000 |
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committer | Diego Biurrun <diego@biurrun.de> | 2008-02-13 01:18:12 +0000 |
commit | 5edac5dc9489cc41e7c8a07bd030d6e38032cc19 (patch) | |
tree | 6c73b958b829cf0c5d47a7242e6fcd5cbce71b43 /libavcodec | |
parent | 6c6007d6a342f7797be9b1137cf2384b21ea9f52 (diff) | |
download | ffmpeg-5edac5dc9489cc41e7c8a07bd030d6e38032cc19.tar.gz |
cosmetics: Replace // by /* */ comments.
sync with upstream libmpeg2 0.4.1
Originally committed as revision 11915 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec')
-rw-r--r-- | libavcodec/i386/idct_mmx.c | 404 |
1 files changed, 202 insertions, 202 deletions
diff --git a/libavcodec/i386/idct_mmx.c b/libavcodec/i386/idct_mmx.c index 6750951300..005a42dedb 100644 --- a/libavcodec/i386/idct_mmx.c +++ b/libavcodec/i386/idct_mmx.c @@ -85,102 +85,102 @@ static inline void idct_row (int16_t * row, int offset, static inline void mmxext_row_head (int16_t * row, int offset, const int16_t * table) { - movq_m2r (*(row+offset), mm2); // mm2 = x6 x4 x2 x0 + movq_m2r (*(row+offset), mm2); /* mm2 = x6 x4 x2 x0 */ - movq_m2r (*(row+offset+4), mm5); // mm5 = x7 x5 x3 x1 - movq_r2r (mm2, mm0); // mm0 = x6 x4 x2 x0 + movq_m2r (*(row+offset+4), mm5); /* mm5 = x7 x5 x3 x1 */ + movq_r2r (mm2, mm0); /* mm0 = x6 x4 x2 x0 */ - movq_m2r (*table, mm3); // mm3 = -C2 -C4 C2 C4 - movq_r2r (mm5, mm6); // mm6 = x7 x5 x3 x1 + movq_m2r (*table, mm3); /* mm3 = -C2 -C4 C2 C4 */ + movq_r2r (mm5, mm6); /* mm6 = x7 x5 x3 x1 */ - movq_m2r (*(table+4), mm4); // mm4 = C6 C4 C6 C4 - pmaddwd_r2r (mm0, mm3); // mm3 = -C4*x4-C2*x6 C4*x0+C2*x2 + movq_m2r (*(table+4), mm4); /* mm4 = C6 C4 C6 C4 */ + pmaddwd_r2r (mm0, mm3); /* mm3 = -C4*x4-C2*x6 C4*x0+C2*x2 */ - pshufw_r2r (mm2, mm2, 0x4e); // mm2 = x2 x0 x6 x4 + pshufw_r2r (mm2, mm2, 0x4e); /* mm2 = x2 x0 x6 x4 */ } static inline void mmxext_row (const int16_t * table, const int32_t * rounder) { - movq_m2r (*(table+8), mm1); // mm1 = -C5 -C1 C3 C1 - pmaddwd_r2r (mm2, mm4); // mm4 = C4*x0+C6*x2 C4*x4+C6*x6 + movq_m2r (*(table+8), mm1); /* mm1 = -C5 -C1 C3 C1 */ + pmaddwd_r2r (mm2, mm4); /* mm4 = C4*x0+C6*x2 C4*x4+C6*x6 */ - pmaddwd_m2r (*(table+16), mm0); // mm0 = C4*x4-C6*x6 C4*x0-C6*x2 - pshufw_r2r (mm6, mm6, 0x4e); // mm6 = x3 x1 x7 x5 + pmaddwd_m2r (*(table+16), mm0); /* mm0 = C4*x4-C6*x6 C4*x0-C6*x2 */ + pshufw_r2r (mm6, mm6, 0x4e); /* mm6 = x3 x1 x7 x5 */ - movq_m2r (*(table+12), mm7); // mm7 = -C7 C3 C7 C5 - pmaddwd_r2r (mm5, mm1); // mm1 = -C1*x5-C5*x7 C1*x1+C3*x3 + movq_m2r (*(table+12), mm7); /* mm7 = -C7 C3 C7 C5 */ + pmaddwd_r2r (mm5, mm1); /* mm1 = -C1*x5-C5*x7 C1*x1+C3*x3 */ - paddd_m2r (*rounder, mm3); // mm3 += rounder - pmaddwd_r2r (mm6, mm7); // mm7 = C3*x1-C7*x3 C5*x5+C7*x7 + paddd_m2r (*rounder, mm3); /* mm3 += rounder */ + pmaddwd_r2r (mm6, mm7); /* mm7 = C3*x1-C7*x3 C5*x5+C7*x7 */ - pmaddwd_m2r (*(table+20), mm2); // mm2 = C4*x0-C2*x2 -C4*x4+C2*x6 - paddd_r2r (mm4, mm3); // mm3 = a1 a0 + rounder + pmaddwd_m2r (*(table+20), mm2); /* mm2 = C4*x0-C2*x2 -C4*x4+C2*x6 */ + paddd_r2r (mm4, mm3); /* mm3 = a1 a0 + rounder */ - pmaddwd_m2r (*(table+24), mm5); // mm5 = C3*x5-C1*x7 C5*x1-C1*x3 - movq_r2r (mm3, mm4); // mm4 = a1 a0 + rounder + pmaddwd_m2r (*(table+24), mm5); /* mm5 = C3*x5-C1*x7 C5*x1-C1*x3 */ + movq_r2r (mm3, mm4); /* mm4 = a1 a0 + rounder */ - pmaddwd_m2r (*(table+28), mm6); // mm6 = C7*x1-C5*x3 C7*x5+C3*x7 - paddd_r2r (mm7, mm1); // mm1 = b1 b0 + pmaddwd_m2r (*(table+28), mm6); /* mm6 = C7*x1-C5*x3 C7*x5+C3*x7 */ + paddd_r2r (mm7, mm1); /* mm1 = b1 b0 */ - paddd_m2r (*rounder, mm0); // mm0 += rounder - psubd_r2r (mm1, mm3); // mm3 = a1-b1 a0-b0 + rounder + paddd_m2r (*rounder, mm0); /* mm0 += rounder */ + psubd_r2r (mm1, mm3); /* mm3 = a1-b1 a0-b0 + rounder */ - psrad_i2r (ROW_SHIFT, mm3); // mm3 = y6 y7 - paddd_r2r (mm4, mm1); // mm1 = a1+b1 a0+b0 + rounder + psrad_i2r (ROW_SHIFT, mm3); /* mm3 = y6 y7 */ + paddd_r2r (mm4, mm1); /* mm1 = a1+b1 a0+b0 + rounder */ - paddd_r2r (mm2, mm0); // mm0 = a3 a2 + rounder - psrad_i2r (ROW_SHIFT, mm1); // mm1 = y1 y0 + paddd_r2r (mm2, mm0); /* mm0 = a3 a2 + rounder */ + psrad_i2r (ROW_SHIFT, mm1); /* mm1 = y1 y0 */ - paddd_r2r (mm6, mm5); // mm5 = b3 b2 - movq_r2r (mm0, mm4); // mm4 = a3 a2 + rounder + paddd_r2r (mm6, mm5); /* mm5 = b3 b2 */ + movq_r2r (mm0, mm4); /* mm4 = a3 a2 + rounder */ - paddd_r2r (mm5, mm0); // mm0 = a3+b3 a2+b2 + rounder - psubd_r2r (mm5, mm4); // mm4 = a3-b3 a2-b2 + rounder + paddd_r2r (mm5, mm0); /* mm0 = a3+b3 a2+b2 + rounder */ + psubd_r2r (mm5, mm4); /* mm4 = a3-b3 a2-b2 + rounder */ } static inline void mmxext_row_tail (int16_t * row, int store) { - psrad_i2r (ROW_SHIFT, mm0); // mm0 = y3 y2 + psrad_i2r (ROW_SHIFT, mm0); /* mm0 = y3 y2 */ - psrad_i2r (ROW_SHIFT, mm4); // mm4 = y4 y5 + psrad_i2r (ROW_SHIFT, mm4); /* mm4 = y4 y5 */ - packssdw_r2r (mm0, mm1); // mm1 = y3 y2 y1 y0 + packssdw_r2r (mm0, mm1); /* mm1 = y3 y2 y1 y0 */ - packssdw_r2r (mm3, mm4); // mm4 = y6 y7 y4 y5 + packssdw_r2r (mm3, mm4); /* mm4 = y6 y7 y4 y5 */ - movq_r2m (mm1, *(row+store)); // save y3 y2 y1 y0 - pshufw_r2r (mm4, mm4, 0xb1); // mm4 = y7 y6 y5 y4 + movq_r2m (mm1, *(row+store)); /* save y3 y2 y1 y0 */ + pshufw_r2r (mm4, mm4, 0xb1); /* mm4 = y7 y6 y5 y4 */ /* slot */ - movq_r2m (mm4, *(row+store+4)); // save y7 y6 y5 y4 + movq_r2m (mm4, *(row+store+4)); /* save y7 y6 y5 y4 */ } static inline void mmxext_row_mid (int16_t * row, int store, int offset, const int16_t * table) { - movq_m2r (*(row+offset), mm2); // mm2 = x6 x4 x2 x0 - psrad_i2r (ROW_SHIFT, mm0); // mm0 = y3 y2 + movq_m2r (*(row+offset), mm2); /* mm2 = x6 x4 x2 x0 */ + psrad_i2r (ROW_SHIFT, mm0); /* mm0 = y3 y2 */ - movq_m2r (*(row+offset+4), mm5); // mm5 = x7 x5 x3 x1 - psrad_i2r (ROW_SHIFT, mm4); // mm4 = y4 y5 + movq_m2r (*(row+offset+4), mm5); /* mm5 = x7 x5 x3 x1 */ + psrad_i2r (ROW_SHIFT, mm4); /* mm4 = y4 y5 */ - packssdw_r2r (mm0, mm1); // mm1 = y3 y2 y1 y0 - movq_r2r (mm5, mm6); // mm6 = x7 x5 x3 x1 + packssdw_r2r (mm0, mm1); /* mm1 = y3 y2 y1 y0 */ + movq_r2r (mm5, mm6); /* mm6 = x7 x5 x3 x1 */ - packssdw_r2r (mm3, mm4); // mm4 = y6 y7 y4 y5 - movq_r2r (mm2, mm0); // mm0 = x6 x4 x2 x0 + packssdw_r2r (mm3, mm4); /* mm4 = y6 y7 y4 y5 */ + movq_r2r (mm2, mm0); /* mm0 = x6 x4 x2 x0 */ - movq_r2m (mm1, *(row+store)); // save y3 y2 y1 y0 - pshufw_r2r (mm4, mm4, 0xb1); // mm4 = y7 y6 y5 y4 + movq_r2m (mm1, *(row+store)); /* save y3 y2 y1 y0 */ + pshufw_r2r (mm4, mm4, 0xb1); /* mm4 = y7 y6 y5 y4 */ - movq_m2r (*table, mm3); // mm3 = -C2 -C4 C2 C4 - movq_r2m (mm4, *(row+store+4)); // save y7 y6 y5 y4 + movq_m2r (*table, mm3); /* mm3 = -C2 -C4 C2 C4 */ + movq_r2m (mm4, *(row+store+4)); /* save y7 y6 y5 y4 */ - pmaddwd_r2r (mm0, mm3); // mm3 = -C4*x4-C2*x6 C4*x0+C2*x2 + pmaddwd_r2r (mm0, mm3); /* mm3 = -C4*x4-C2*x6 C4*x0+C2*x2 */ - movq_m2r (*(table+4), mm4); // mm4 = C6 C4 C6 C4 - pshufw_r2r (mm2, mm2, 0x4e); // mm2 = x2 x0 x6 x4 + movq_m2r (*(table+4), mm4); /* mm4 = C6 C4 C6 C4 */ + pshufw_r2r (mm2, mm2, 0x4e); /* mm2 = x2 x0 x6 x4 */ } @@ -197,123 +197,123 @@ static inline void mmxext_row_mid (int16_t * row, int store, static inline void mmx_row_head (int16_t * row, int offset, const int16_t * table) { - movq_m2r (*(row+offset), mm2); // mm2 = x6 x4 x2 x0 + movq_m2r (*(row+offset), mm2); /* mm2 = x6 x4 x2 x0 */ - movq_m2r (*(row+offset+4), mm5); // mm5 = x7 x5 x3 x1 - movq_r2r (mm2, mm0); // mm0 = x6 x4 x2 x0 + movq_m2r (*(row+offset+4), mm5); /* mm5 = x7 x5 x3 x1 */ + movq_r2r (mm2, mm0); /* mm0 = x6 x4 x2 x0 */ - movq_m2r (*table, mm3); // mm3 = C6 C4 C2 C4 - movq_r2r (mm5, mm6); // mm6 = x7 x5 x3 x1 + movq_m2r (*table, mm3); /* mm3 = C6 C4 C2 C4 */ + movq_r2r (mm5, mm6); /* mm6 = x7 x5 x3 x1 */ - punpckldq_r2r (mm0, mm0); // mm0 = x2 x0 x2 x0 + punpckldq_r2r (mm0, mm0); /* mm0 = x2 x0 x2 x0 */ - movq_m2r (*(table+4), mm4); // mm4 = -C2 -C4 C6 C4 - pmaddwd_r2r (mm0, mm3); // mm3 = C4*x0+C6*x2 C4*x0+C2*x2 + movq_m2r (*(table+4), mm4); /* mm4 = -C2 -C4 C6 C4 */ + pmaddwd_r2r (mm0, mm3); /* mm3 = C4*x0+C6*x2 C4*x0+C2*x2 */ - movq_m2r (*(table+8), mm1); // mm1 = -C7 C3 C3 C1 - punpckhdq_r2r (mm2, mm2); // mm2 = x6 x4 x6 x4 + movq_m2r (*(table+8), mm1); /* mm1 = -C7 C3 C3 C1 */ + punpckhdq_r2r (mm2, mm2); /* mm2 = x6 x4 x6 x4 */ } static inline void mmx_row (const int16_t * table, const int32_t * rounder) { - pmaddwd_r2r (mm2, mm4); // mm4 = -C4*x4-C2*x6 C4*x4+C6*x6 - punpckldq_r2r (mm5, mm5); // mm5 = x3 x1 x3 x1 + pmaddwd_r2r (mm2, mm4); /* mm4 = -C4*x4-C2*x6 C4*x4+C6*x6 */ + punpckldq_r2r (mm5, mm5); /* mm5 = x3 x1 x3 x1 */ - pmaddwd_m2r (*(table+16), mm0); // mm0 = C4*x0-C2*x2 C4*x0-C6*x2 - punpckhdq_r2r (mm6, mm6); // mm6 = x7 x5 x7 x5 + pmaddwd_m2r (*(table+16), mm0); /* mm0 = C4*x0-C2*x2 C4*x0-C6*x2 */ + punpckhdq_r2r (mm6, mm6); /* mm6 = x7 x5 x7 x5 */ - movq_m2r (*(table+12), mm7); // mm7 = -C5 -C1 C7 C5 - pmaddwd_r2r (mm5, mm1); // mm1 = C3*x1-C7*x3 C1*x1+C3*x3 + movq_m2r (*(table+12), mm7); /* mm7 = -C5 -C1 C7 C5 */ + pmaddwd_r2r (mm5, mm1); /* mm1 = C3*x1-C7*x3 C1*x1+C3*x3 */ - paddd_m2r (*rounder, mm3); // mm3 += rounder - pmaddwd_r2r (mm6, mm7); // mm7 = -C1*x5-C5*x7 C5*x5+C7*x7 + paddd_m2r (*rounder, mm3); /* mm3 += rounder */ + pmaddwd_r2r (mm6, mm7); /* mm7 = -C1*x5-C5*x7 C5*x5+C7*x7 */ - pmaddwd_m2r (*(table+20), mm2); // mm2 = C4*x4-C6*x6 -C4*x4+C2*x6 - paddd_r2r (mm4, mm3); // mm3 = a1 a0 + rounder + pmaddwd_m2r (*(table+20), mm2); /* mm2 = C4*x4-C6*x6 -C4*x4+C2*x6 */ + paddd_r2r (mm4, mm3); /* mm3 = a1 a0 + rounder */ - pmaddwd_m2r (*(table+24), mm5); // mm5 = C7*x1-C5*x3 C5*x1-C1*x3 - movq_r2r (mm3, mm4); // mm4 = a1 a0 + rounder + pmaddwd_m2r (*(table+24), mm5); /* mm5 = C7*x1-C5*x3 C5*x1-C1*x3 */ + movq_r2r (mm3, mm4); /* mm4 = a1 a0 + rounder */ - pmaddwd_m2r (*(table+28), mm6); // mm6 = C3*x5-C1*x7 C7*x5+C3*x7 - paddd_r2r (mm7, mm1); // mm1 = b1 b0 + pmaddwd_m2r (*(table+28), mm6); /* mm6 = C3*x5-C1*x7 C7*x5+C3*x7 */ + paddd_r2r (mm7, mm1); /* mm1 = b1 b0 */ - paddd_m2r (*rounder, mm0); // mm0 += rounder - psubd_r2r (mm1, mm3); // mm3 = a1-b1 a0-b0 + rounder + paddd_m2r (*rounder, mm0); /* mm0 += rounder */ + psubd_r2r (mm1, mm3); /* mm3 = a1-b1 a0-b0 + rounder */ - psrad_i2r (ROW_SHIFT, mm3); // mm3 = y6 y7 - paddd_r2r (mm4, mm1); // mm1 = a1+b1 a0+b0 + rounder + psrad_i2r (ROW_SHIFT, mm3); /* mm3 = y6 y7 */ + paddd_r2r (mm4, mm1); /* mm1 = a1+b1 a0+b0 + rounder */ - paddd_r2r (mm2, mm0); // mm0 = a3 a2 + rounder - psrad_i2r (ROW_SHIFT, mm1); // mm1 = y1 y0 + paddd_r2r (mm2, mm0); /* mm0 = a3 a2 + rounder */ + psrad_i2r (ROW_SHIFT, mm1); /* mm1 = y1 y0 */ - paddd_r2r (mm6, mm5); // mm5 = b3 b2 - movq_r2r (mm0, mm7); // mm7 = a3 a2 + rounder + paddd_r2r (mm6, mm5); /* mm5 = b3 b2 */ + movq_r2r (mm0, mm7); /* mm7 = a3 a2 + rounder */ - paddd_r2r (mm5, mm0); // mm0 = a3+b3 a2+b2 + rounder - psubd_r2r (mm5, mm7); // mm7 = a3-b3 a2-b2 + rounder + paddd_r2r (mm5, mm0); /* mm0 = a3+b3 a2+b2 + rounder */ + psubd_r2r (mm5, mm7); /* mm7 = a3-b3 a2-b2 + rounder */ } static inline void mmx_row_tail (int16_t * row, int store) { - psrad_i2r (ROW_SHIFT, mm0); // mm0 = y3 y2 + psrad_i2r (ROW_SHIFT, mm0); /* mm0 = y3 y2 */ - psrad_i2r (ROW_SHIFT, mm7); // mm7 = y4 y5 + psrad_i2r (ROW_SHIFT, mm7); /* mm7 = y4 y5 */ - packssdw_r2r (mm0, mm1); // mm1 = y3 y2 y1 y0 + packssdw_r2r (mm0, mm1); /* mm1 = y3 y2 y1 y0 */ - packssdw_r2r (mm3, mm7); // mm7 = y6 y7 y4 y5 + packssdw_r2r (mm3, mm7); /* mm7 = y6 y7 y4 y5 */ - movq_r2m (mm1, *(row+store)); // save y3 y2 y1 y0 - movq_r2r (mm7, mm4); // mm4 = y6 y7 y4 y5 + movq_r2m (mm1, *(row+store)); /* save y3 y2 y1 y0 */ + movq_r2r (mm7, mm4); /* mm4 = y6 y7 y4 y5 */ - pslld_i2r (16, mm7); // mm7 = y7 0 y5 0 + pslld_i2r (16, mm7); /* mm7 = y7 0 y5 0 */ - psrld_i2r (16, mm4); // mm4 = 0 y6 0 y4 + psrld_i2r (16, mm4); /* mm4 = 0 y6 0 y4 */ - por_r2r (mm4, mm7); // mm7 = y7 y6 y5 y4 + por_r2r (mm4, mm7); /* mm7 = y7 y6 y5 y4 */ /* slot */ - movq_r2m (mm7, *(row+store+4)); // save y7 y6 y5 y4 + movq_r2m (mm7, *(row+store+4)); /* save y7 y6 y5 y4 */ } static inline void mmx_row_mid (int16_t * row, int store, int offset, const int16_t * table) { - movq_m2r (*(row+offset), mm2); // mm2 = x6 x4 x2 x0 - psrad_i2r (ROW_SHIFT, mm0); // mm0 = y3 y2 + movq_m2r (*(row+offset), mm2); /* mm2 = x6 x4 x2 x0 */ + psrad_i2r (ROW_SHIFT, mm0); /* mm0 = y3 y2 */ - movq_m2r (*(row+offset+4), mm5); // mm5 = x7 x5 x3 x1 - psrad_i2r (ROW_SHIFT, mm7); // mm7 = y4 y5 + movq_m2r (*(row+offset+4), mm5); /* mm5 = x7 x5 x3 x1 */ + psrad_i2r (ROW_SHIFT, mm7); /* mm7 = y4 y5 */ - packssdw_r2r (mm0, mm1); // mm1 = y3 y2 y1 y0 - movq_r2r (mm5, mm6); // mm6 = x7 x5 x3 x1 + packssdw_r2r (mm0, mm1); /* mm1 = y3 y2 y1 y0 */ + movq_r2r (mm5, mm6); /* mm6 = x7 x5 x3 x1 */ - packssdw_r2r (mm3, mm7); // mm7 = y6 y7 y4 y5 - movq_r2r (mm2, mm0); // mm0 = x6 x4 x2 x0 + packssdw_r2r (mm3, mm7); /* mm7 = y6 y7 y4 y5 */ + movq_r2r (mm2, mm0); /* mm0 = x6 x4 x2 x0 */ - movq_r2m (mm1, *(row+store)); // save y3 y2 y1 y0 - movq_r2r (mm7, mm1); // mm1 = y6 y7 y4 y5 + movq_r2m (mm1, *(row+store)); /* save y3 y2 y1 y0 */ + movq_r2r (mm7, mm1); /* mm1 = y6 y7 y4 y5 */ - punpckldq_r2r (mm0, mm0); // mm0 = x2 x0 x2 x0 - psrld_i2r (16, mm7); // mm7 = 0 y6 0 y4 + punpckldq_r2r (mm0, mm0); /* mm0 = x2 x0 x2 x0 */ + psrld_i2r (16, mm7); /* mm7 = 0 y6 0 y4 */ - movq_m2r (*table, mm3); // mm3 = C6 C4 C2 C4 - pslld_i2r (16, mm1); // mm1 = y7 0 y5 0 + movq_m2r (*table, mm3); /* mm3 = C6 C4 C2 C4 */ + pslld_i2r (16, mm1); /* mm1 = y7 0 y5 0 */ - movq_m2r (*(table+4), mm4); // mm4 = -C2 -C4 C6 C4 - por_r2r (mm1, mm7); // mm7 = y7 y6 y5 y4 + movq_m2r (*(table+4), mm4); /* mm4 = -C2 -C4 C6 C4 */ + por_r2r (mm1, mm7); /* mm7 = y7 y6 y5 y4 */ - movq_m2r (*(table+8), mm1); // mm1 = -C7 C3 C3 C1 - punpckhdq_r2r (mm2, mm2); // mm2 = x6 x4 x6 x4 + movq_m2r (*(table+8), mm1); /* mm1 = -C7 C3 C3 C1 */ + punpckhdq_r2r (mm2, mm2); /* mm2 = x6 x4 x6 x4 */ - movq_r2m (mm7, *(row+store+4)); // save y7 y6 y5 y4 - pmaddwd_r2r (mm0, mm3); // mm3 = C4*x0+C6*x2 C4*x0+C2*x2 + movq_r2m (mm7, *(row+store+4)); /* save y7 y6 y5 y4 */ + pmaddwd_r2r (mm0, mm3); /* mm3 = C4*x0+C6*x2 C4*x0+C2*x2 */ } #if 0 -// C column IDCT - it is just here to document the MMXEXT and MMX versions +/* C column IDCT - it is just here to document the MMXEXT and MMX versions */ static inline void idct_col (int16_t * col, int offset) { /* multiplication - as implemented on mmx */ @@ -384,7 +384,7 @@ static inline void idct_col (int16_t * col, int offset) #endif -// MMX column IDCT +/* MMX column IDCT */ static inline void idct_col (int16_t * col, int offset) { #define T1 13036 @@ -400,132 +400,132 @@ static inline void idct_col (int16_t * col, int offset) /* column code adapted from Peter Gubanov */ /* http://www.elecard.com/peter/idct.shtml */ - movq_m2r (*t1_vector, mm0); // mm0 = T1 + movq_m2r (*t1_vector, mm0); /* mm0 = T1 */ - movq_m2r (*(col+offset+1*8), mm1); // mm1 = x1 - movq_r2r (mm0, mm2); // mm2 = T1 + movq_m2r (*(col+offset+1*8), mm1); /* mm1 = x1 */ + movq_r2r (mm0, mm2); /* mm2 = T1 */ - movq_m2r (*(col+offset+7*8), mm4); // mm4 = x7 - pmulhw_r2r (mm1, mm0); // mm0 = T1*x1 + movq_m2r (*(col+offset+7*8), mm4); /* mm4 = x7 */ + pmulhw_r2r (mm1, mm0); /* mm0 = T1*x1 */ - movq_m2r (*t3_vector, mm5); // mm5 = T3 - pmulhw_r2r (mm4, mm2); // mm2 = T1*x7 + movq_m2r (*t3_vector, mm5); /* mm5 = T3 */ + pmulhw_r2r (mm4, mm2); /* mm2 = T1*x7 */ - movq_m2r (*(col+offset+5*8), mm6); // mm6 = x5 - movq_r2r (mm5, mm7); // mm7 = T3-1 + movq_m2r (*(col+offset+5*8), mm6); /* mm6 = x5 */ + movq_r2r (mm5, mm7); /* mm7 = T3-1 */ - movq_m2r (*(col+offset+3*8), mm3); // mm3 = x3 - psubsw_r2r (mm4, mm0); // mm0 = v17 + movq_m2r (*(col+offset+3*8), mm3); /* mm3 = x3 */ + psubsw_r2r (mm4, mm0); /* mm0 = v17 */ - movq_m2r (*t2_vector, mm4); // mm4 = T2 - pmulhw_r2r (mm3, mm5); // mm5 = (T3-1)*x3 + movq_m2r (*t2_vector, mm4); /* mm4 = T2 */ + pmulhw_r2r (mm3, mm5); /* mm5 = (T3-1)*x3 */ - paddsw_r2r (mm2, mm1); // mm1 = u17 - pmulhw_r2r (mm6, mm7); // mm7 = (T3-1)*x5 + paddsw_r2r (mm2, mm1); /* mm1 = u17 */ + pmulhw_r2r (mm6, mm7); /* mm7 = (T3-1)*x5 */ /* slot */ - movq_r2r (mm4, mm2); // mm2 = T2 - paddsw_r2r (mm3, mm5); // mm5 = T3*x3 + movq_r2r (mm4, mm2); /* mm2 = T2 */ + paddsw_r2r (mm3, mm5); /* mm5 = T3*x3 */ - pmulhw_m2r (*(col+offset+2*8), mm4);// mm4 = T2*x2 - paddsw_r2r (mm6, mm7); // mm7 = T3*x5 + pmulhw_m2r (*(col+offset+2*8), mm4);/* mm4 = T2*x2 */ + paddsw_r2r (mm6, mm7); /* mm7 = T3*x5 */ - psubsw_r2r (mm6, mm5); // mm5 = v35 - paddsw_r2r (mm3, mm7); // mm7 = u35 + psubsw_r2r (mm6, mm5); /* mm5 = v35 */ + paddsw_r2r (mm3, mm7); /* mm7 = u35 */ - movq_m2r (*(col+offset+6*8), mm3); // mm3 = x6 - movq_r2r (mm0, mm6); // mm6 = v17 + movq_m2r (*(col+offset+6*8), mm3); /* mm3 = x6 */ + movq_r2r (mm0, mm6); /* mm6 = v17 */ - pmulhw_r2r (mm3, mm2); // mm2 = T2*x6 - psubsw_r2r (mm5, mm0); // mm0 = b3 + pmulhw_r2r (mm3, mm2); /* mm2 = T2*x6 */ + psubsw_r2r (mm5, mm0); /* mm0 = b3 */ - psubsw_r2r (mm3, mm4); // mm4 = v26 - paddsw_r2r (mm6, mm5); // mm5 = v12 + psubsw_r2r (mm3, mm4); /* mm4 = v26 */ + paddsw_r2r (mm6, mm5); /* mm5 = v12 */ - movq_r2m (mm0, *(col+offset+3*8)); // save b3 in scratch0 - movq_r2r (mm1, mm6); // mm6 = u17 + movq_r2m (mm0, *(col+offset+3*8)); /* save b3 in scratch0 */ + movq_r2r (mm1, mm6); /* mm6 = u17 */ - paddsw_m2r (*(col+offset+2*8), mm2);// mm2 = u26 - paddsw_r2r (mm7, mm6); // mm6 = b0 + paddsw_m2r (*(col+offset+2*8), mm2);/* mm2 = u26 */ + paddsw_r2r (mm7, mm6); /* mm6 = b0 */ - psubsw_r2r (mm7, mm1); // mm1 = u12 - movq_r2r (mm1, mm7); // mm7 = u12 + psubsw_r2r (mm7, mm1); /* mm1 = u12 */ + movq_r2r (mm1, mm7); /* mm7 = u12 */ - movq_m2r (*(col+offset+0*8), mm3); // mm3 = x0 - paddsw_r2r (mm5, mm1); // mm1 = u12+v12 + movq_m2r (*(col+offset+0*8), mm3); /* mm3 = x0 */ + paddsw_r2r (mm5, mm1); /* mm1 = u12+v12 */ - movq_m2r (*c4_vector, mm0); // mm0 = C4/2 - psubsw_r2r (mm5, mm7); // mm7 = u12-v12 + movq_m2r (*c4_vector, mm0); /* mm0 = C4/2 */ + psubsw_r2r (mm5, mm7); /* mm7 = u12-v12 */ - movq_r2m (mm6, *(col+offset+5*8)); // save b0 in scratch1 - pmulhw_r2r (mm0, mm1); // mm1 = b1/2 + movq_r2m (mm6, *(col+offset+5*8)); /* save b0 in scratch1 */ + pmulhw_r2r (mm0, mm1); /* mm1 = b1/2 */ - movq_r2r (mm4, mm6); // mm6 = v26 - pmulhw_r2r (mm0, mm7); // mm7 = b2/2 + movq_r2r (mm4, mm6); /* mm6 = v26 */ + pmulhw_r2r (mm0, mm7); /* mm7 = b2/2 */ - movq_m2r (*(col+offset+4*8), mm5); // mm5 = x4 - movq_r2r (mm3, mm0); // mm0 = x0 + movq_m2r (*(col+offset+4*8), mm5); /* mm5 = x4 */ + movq_r2r (mm3, mm0); /* mm0 = x0 */ - psubsw_r2r (mm5, mm3); // mm3 = v04 - paddsw_r2r (mm5, mm0); // mm0 = u04 + psubsw_r2r (mm5, mm3); /* mm3 = v04 */ + paddsw_r2r (mm5, mm0); /* mm0 = u04 */ - paddsw_r2r (mm3, mm4); // mm4 = a1 - movq_r2r (mm0, mm5); // mm5 = u04 + paddsw_r2r (mm3, mm4); /* mm4 = a1 */ + movq_r2r (mm0, mm5); /* mm5 = u04 */ - psubsw_r2r (mm6, mm3); // mm3 = a2 - paddsw_r2r (mm2, mm5); // mm5 = a0 + psubsw_r2r (mm6, mm3); /* mm3 = a2 */ + paddsw_r2r (mm2, mm5); /* mm5 = a0 */ - paddsw_r2r (mm1, mm1); // mm1 = b1 - psubsw_r2r (mm2, mm0); // mm0 = a3 + paddsw_r2r (mm1, mm1); /* mm1 = b1 */ + psubsw_r2r (mm2, mm0); /* mm0 = a3 */ - paddsw_r2r (mm7, mm7); // mm7 = b2 - movq_r2r (mm3, mm2); // mm2 = a2 + paddsw_r2r (mm7, mm7); /* mm7 = b2 */ + movq_r2r (mm3, mm2); /* mm2 = a2 */ - movq_r2r (mm4, mm6); // mm6 = a1 - paddsw_r2r (mm7, mm3); // mm3 = a2+b2 + movq_r2r (mm4, mm6); /* mm6 = a1 */ + paddsw_r2r (mm7, mm3); /* mm3 = a2+b2 */ - psraw_i2r (COL_SHIFT, mm3); // mm3 = y2 - paddsw_r2r (mm1, mm4); // mm4 = a1+b1 + psraw_i2r (COL_SHIFT, mm3); /* mm3 = y2 */ + paddsw_r2r (mm1, mm4); /* mm4 = a1+b1 */ - psraw_i2r (COL_SHIFT, mm4); // mm4 = y1 - psubsw_r2r (mm1, mm6); // mm6 = a1-b1 + psraw_i2r (COL_SHIFT, mm4); /* mm4 = y1 */ + psubsw_r2r (mm1, mm6); /* mm6 = a1-b1 */ - movq_m2r (*(col+offset+5*8), mm1); // mm1 = b0 - psubsw_r2r (mm7, mm2); // mm2 = a2-b2 + movq_m2r (*(col+offset+5*8), mm1); /* mm1 = b0 */ + psubsw_r2r (mm7, mm2); /* mm2 = a2-b2 */ - psraw_i2r (COL_SHIFT, mm6); // mm6 = y6 - movq_r2r (mm5, mm7); // mm7 = a0 + psraw_i2r (COL_SHIFT, mm6); /* mm6 = y6 */ + movq_r2r (mm5, mm7); /* mm7 = a0 */ - movq_r2m (mm4, *(col+offset+1*8)); // save y1 - psraw_i2r (COL_SHIFT, mm2); // mm2 = y5 + movq_r2m (mm4, *(col+offset+1*8)); /* save y1 */ + psraw_i2r (COL_SHIFT, mm2); /* mm2 = y5 */ - movq_r2m (mm3, *(col+offset+2*8)); // save y2 - paddsw_r2r (mm1, mm5); // mm5 = a0+b0 + movq_r2m (mm3, *(col+offset+2*8)); /* save y2 */ + paddsw_r2r (mm1, mm5); /* mm5 = a0+b0 */ - movq_m2r (*(col+offset+3*8), mm4); // mm4 = b3 - psubsw_r2r (mm1, mm7); // mm7 = a0-b0 + movq_m2r (*(col+offset+3*8), mm4); /* mm4 = b3 */ + psubsw_r2r (mm1, mm7); /* mm7 = a0-b0 */ - psraw_i2r (COL_SHIFT, mm5); // mm5 = y0 - movq_r2r (mm0, mm3); // mm3 = a3 + psraw_i2r (COL_SHIFT, mm5); /* mm5 = y0 */ + movq_r2r (mm0, mm3); /* mm3 = a3 */ - movq_r2m (mm2, *(col+offset+5*8)); // save y5 - psubsw_r2r (mm4, mm3); // mm3 = a3-b3 + movq_r2m (mm2, *(col+offset+5*8)); /* save y5 */ + psubsw_r2r (mm4, mm3); /* mm3 = a3-b3 */ - psraw_i2r (COL_SHIFT, mm7); // mm7 = y7 - paddsw_r2r (mm0, mm4); // mm4 = a3+b3 + psraw_i2r (COL_SHIFT, mm7); /* mm7 = y7 */ + paddsw_r2r (mm0, mm4); /* mm4 = a3+b3 */ - movq_r2m (mm5, *(col+offset+0*8)); // save y0 - psraw_i2r (COL_SHIFT, mm3); // mm3 = y4 + movq_r2m (mm5, *(col+offset+0*8)); /* save y0 */ + psraw_i2r (COL_SHIFT, mm3); /* mm3 = y4 */ - movq_r2m (mm6, *(col+offset+6*8)); // save y6 - psraw_i2r (COL_SHIFT, mm4); // mm4 = y3 + movq_r2m (mm6, *(col+offset+6*8)); /* save y6 */ + psraw_i2r (COL_SHIFT, mm4); /* mm4 = y3 */ - movq_r2m (mm7, *(col+offset+7*8)); // save y7 + movq_r2m (mm7, *(col+offset+7*8)); /* save y7 */ - movq_r2m (mm3, *(col+offset+4*8)); // save y4 + movq_r2m (mm3, *(col+offset+4*8)); /* save y4 */ - movq_r2m (mm4, *(col+offset+3*8)); // save y3 + movq_r2m (mm4, *(col+offset+3*8)); /* save y3 */ #undef T1 #undef T2 |