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jack2/linux/alsa/memops.h

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  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.    $Id: memops.h,v 1.3 2005/11/23 11:24:29 letz Exp $

  19. */

  20. 

  21. #ifndef __jack_memops_h__

  22. #define __jack_memops_h__

  23. 

  24. #include "types.h"

  25. 

  26. typedef	enum {

  27.     None,

  28.     Rectangular,

  29.     Triangular,

  30.     Shaped

  31. } DitherAlgorithm;

  32. 

  33. #define DITHER_BUF_SIZE 8

  34. #define DITHER_BUF_MASK 7

  35. 

  36. typedef struct {

  37.     unsigned int depth;

  38.     float rm1;

  39.     unsigned int idx;

  40.     float e[DITHER_BUF_SIZE];

  41. } dither_state_t;

  42. 

  43. #ifdef __cplusplus

  44. extern "C"

  45. {

  46. #endif

  47. 

  48. void sample_move_d32u24_sSs          (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);

  49. void sample_move_d32u24_sS           (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);

  50. void sample_move_d24_sSs             (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);

  51. void sample_move_d24_sS              (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);

  52. void sample_move_d16_sSs             (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);

  53. void sample_move_d16_sS              (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);

  54. 

  55. void sample_move_dither_rect_d32u24_sSs   (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);

  56. void sample_move_dither_rect_d32u24_sS    (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_d32u24_sSs    (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);

  58. void sample_move_dither_tri_d32u24_sS     (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_d32u24_sSs (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);

  60. void sample_move_dither_shaped_d32u24_sS  (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);

  61. void sample_move_dither_rect_d24_sSs      (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);

  62. void sample_move_dither_rect_d24_sS       (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);

  63. void sample_move_dither_tri_d24_sSs       (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);

  64. void sample_move_dither_tri_d24_sS        (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);

  65. void sample_move_dither_shaped_d24_sSs    (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);

  66. void sample_move_dither_shaped_d24_sS     (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);

  67. 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);

  68. 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);

  69. 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);

  70. 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);

  71. 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);

  72. 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);

  73. 

  74. void sample_move_dS_s32u24s          (jack_default_audio_sample_t *dst, char *src, unsigned long nsamples, unsigned long src_skip);

  75. void sample_move_dS_s32u24           (jack_default_audio_sample_t *dst, char *src, unsigned long nsamples, unsigned long src_skip);

  76. void sample_move_dS_s24s             (jack_default_audio_sample_t *dst, char *src, unsigned long nsamples, unsigned long src_skip);

  77. void sample_move_dS_s24              (jack_default_audio_sample_t *dst, char *src, unsigned long nsamples, unsigned long src_skip);

  78. void sample_move_dS_s16s             (jack_default_audio_sample_t *dst, char *src, unsigned long nsamples, unsigned long src_skip);

  79. void sample_move_dS_s16              (jack_default_audio_sample_t *dst, char *src, unsigned long nsamples, unsigned long src_skip);

  80. 

  81. void sample_merge_d16_sS             (char *dst,  jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);

  82. void sample_merge_d32u24_sS          (char *dst, jack_default_audio_sample_t *src, unsigned long nsamples, unsigned long dst_skip, dither_state_t *state);

  83. 

  84. static __inline__ void

  85. sample_merge (jack_default_audio_sample_t *dst, jack_default_audio_sample_t *src, unsigned long cnt)

  86. 

  87. {

  88. 	while (cnt--) {

  89. 		*dst += *src;

  90. 		dst++;

  91. 		src++;

  92. 	}

  93. }

  94. 

  95. static __inline__ void

  96. sample_memcpy (jack_default_audio_sample_t *dst, jack_default_audio_sample_t *src, unsigned long cnt)

  97. 

  98. {

  99. 	memcpy (dst, src, cnt * sizeof (jack_default_audio_sample_t));

  100. }

  101. 

  102. void memset_interleave               (char *dst, char val, unsigned long bytes, unsigned long unit_bytes, unsigned long skip_bytes);

  103. void memcpy_fake                     (char *dst, char *src, unsigned long src_bytes, unsigned long foo, unsigned long bar);

  104. 

  105. void memcpy_interleave_d16_s16       (char *dst, char *src, unsigned long src_bytes, unsigned long dst_skip_bytes, unsigned long src_skip_bytes);

  106. void memcpy_interleave_d24_s24       (char *dst, char *src, unsigned long src_bytes, unsigned long dst_skip_bytes, unsigned long src_skip_bytes);

  107. void memcpy_interleave_d32_s32       (char *dst, char *src, unsigned long src_bytes, unsigned long dst_skip_bytes, unsigned long src_skip_bytes);

  108. 

  109. void merge_memcpy_interleave_d16_s16 (char *dst, char *src, unsigned long src_bytes, unsigned long dst_skip_bytes, unsigned long src_skip_bytes);

  110. void merge_memcpy_interleave_d24_s24 (char *dst, char *src, unsigned long src_bytes, unsigned long dst_skip_bytes, unsigned long src_skip_bytes);

  111. void merge_memcpy_interleave_d32_s32 (char *dst, char *src, unsigned long src_bytes, unsigned long dst_skip_bytes, unsigned long src_skip_bytes);

  112. 

  113. void merge_memcpy_d16_s16            (char *dst, char *src, unsigned long src_bytes, unsigned long foo, unsigned long bar);

  114. void merge_memcpy_d32_s32            (char *dst, char *src, unsigned long src_bytes, unsigned long foo, unsigned long bar);

  115. 

  116. #ifdef __cplusplus

  117. }

  118. #endif

  119. #endif /* __jack_memops_h__ */