jack/memops.h

   1 /*
   2     Copyright (C) 1999-2000 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #ifndef __jack_memops_h__
  21 #define __jack_memops_h__
  22
  23 #include <jack/types.h>
  24
  25 typedef enum  {
  26         None,
  27         Rectangular,
  28         Triangular,
  29         Shaped
  30 } DitherAlgorithm;
  31
  32 #define DITHER_BUF_SIZE 8
  33 #define DITHER_BUF_MASK 7
  34
  35 typedef struct {
  36     unsigned int depth;
  37     float rm1;
  38     unsigned int idx;
  39     float e[DITHER_BUF_SIZE];
  40 } dither_state_t;
  41
  42 /* float functions */
  43 void sample_move_floatLE_sSs (jack_default_audio_sample_t *dst, char *src, unsigned long nsamples, unsigned long dst_skip);
  44 void sample_move_dS_floatLE (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);
  45
  46 /* integer functions */
  47 void sample_move_d32u24_sSs          (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);
  48 void sample_move_d32u24_sS           (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);
  49 void sample_move_d24_sSs             (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);
  50 void sample_move_d24_sS              (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);
  51 void sample_move_d16_sSs             (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);
  52 void sample_move_d16_sS              (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);
  53
  54 void sample_move_dither_rect_d16_sSs      (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);
  55 void sample_move_dither_rect_d16_sS       (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);
  56 void sample_move_dither_tri_d16_sSs       (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);
  57 void sample_move_dither_tri_d16_sS        (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);
  58 void sample_move_dither_shaped_d16_sSs    (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);
  59 void sample_move_dither_shaped_d16_sS     (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);
  60
  61 void sample_move_dS_s32u24s          (jack_default_audio_sample_t *dst, char *src, unsigned long nsamples, unsigned long src_skip);
  62 void sample_move_dS_s32u24           (jack_default_audio_sample_t *dst, char *src, unsigned long nsamples, unsigned long src_skip);
  63 void sample_move_dS_s24s             (jack_default_audio_sample_t *dst, char *src, unsigned long nsamples, unsigned long src_skip);
  64 void sample_move_dS_s24              (jack_default_audio_sample_t *dst, char *src, unsigned long nsamples, unsigned long src_skip);
  65 void sample_move_dS_s16s             (jack_default_audio_sample_t *dst, char *src, unsigned long nsamples, unsigned long src_skip);
  66 void sample_move_dS_s16              (jack_default_audio_sample_t *dst, char *src, unsigned long nsamples, unsigned long src_skip);
  67
  68 static __inline__ void
  69 sample_memcpy (jack_default_audio_sample_t *dst, jack_default_audio_sample_t *src, unsigned long cnt) {
  70         memcpy (dst, src, cnt * sizeof (jack_default_audio_sample_t));
  71 }
  72
  73 void memset_interleave               (char *dst, char val, unsigned long bytes, unsigned long unit_bytes, unsigned long skip_bytes);
  74 void memcpy_fake                     (char *dst, char *src, unsigned long src_bytes, unsigned long foo, unsigned long bar);
  75
  76 void memcpy_interleave_d16_s16       (char *dst, char *src, unsigned long src_bytes, unsigned long dst_skip_bytes, unsigned long src_skip_bytes);
  77 void memcpy_interleave_d24_s24       (char *dst, char *src, unsigned long src_bytes, unsigned long dst_skip_bytes, unsigned long src_skip_bytes);
  78 void memcpy_interleave_d32_s32       (char *dst, char *src, unsigned long src_bytes, unsigned long dst_skip_bytes, unsigned long src_skip_bytes);
  79
  80 #endif /* __jack_memops_h__ */