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Viewing changes to gst-libs/ext/libav/libavcodec/arm/vp3dsp_neon.S

  • Committer: Package Import Robot
  • Author(s): Sebastian Dröge
  • Date: 2013-09-24 17:07:00 UTC
  • mfrom: (1.1.17) (7.1.9 experimental)
  • Revision ID: package-import@ubuntu.com-20130924170700-4dg62s3pwl0pdakz
Tags: 1.2.0-1
* New upstream stable release:
  + debian/control:
    - Build depend on GStreamer and gst-plugins-base >= 1.2.0.

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gst-libs/ext/libav/libavcodec/arm/vp3dsp_neon.S
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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#include "asm.S"
 
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#include "libavutil/arm/asm.S"
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const   vp3_idct_constants, align=4
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.short 64277, 60547, 54491, 46341, 36410, 25080, 12785
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    vadd.s16        q1,  q8,  q12
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    vsub.s16        q8,  q8,  q12
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    vld1.64         {d28-d31}, [r2,:128]!
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endfunc
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function vp3_idct_core_neon
 
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vp3_idct_core_neon:
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    vmull.s16       q2,  d18, xC1S7     // (ip[1] * C1) << 16
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    vmull.s16       q3,  d19, xC1S7
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    vmull.s16       q4,  d2,  xC4S4     // ((ip[0] + ip[4]) * C4) << 16
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VP3_IDCT_END row
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VP3_IDCT_END col
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function ff_vp3_idct_neon, export=1
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    mov             ip,  lr
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    mov             r2,  r0
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    bl              vp3_idct_start_neon
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    bl              vp3_idct_end_row_neon
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    mov             r3,  #8
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    bl              vp3_idct_core_neon
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    bl              vp3_idct_end_col_neon
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    mov             lr,  ip
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    vpop            {d8-d15}
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    vshr.s16        q8,  q8,  #4
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    vshr.s16        q9,  q9,  #4
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    vshr.s16        q10, q10, #4
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    vshr.s16        q11, q11, #4
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    vshr.s16        q12, q12, #4
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    vst1.64         {d16-d19}, [r0,:128]!
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    vshr.s16        q13, q13, #4
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    vshr.s16        q14, q14, #4
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    vst1.64         {d20-d23}, [r0,:128]!
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    vshr.s16        q15, q15, #4
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    vst1.64         {d24-d27}, [r0,:128]!
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    vst1.64         {d28-d31}, [r0,:128]!
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    bx              lr
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endfunc
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function ff_vp3_idct_put_neon, export=1
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    mov             ip,  lr
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    bl              vp3_idct_start_neon