apps/codecs/demac/libdemac/demac_config.h

   1 /*
   2
   3 libdemac - A Monkey's Audio decoder
   4
   5 $Id$
   6
   7 Copyright (C) Dave Chapman 2007
   8
   9 This program is free software; you can redistribute it and/or modify
  10 it under the terms of the GNU General Public License as published by
  11 the Free Software Foundation; either version 2 of the License, or
  12 (at your option) any later version.
  13
  14 This program is distributed in the hope that it will be useful,
  15 but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 GNU General Public License for more details.
  18
  19 You should have received a copy of the GNU General Public License
  20 along with this program; if not, write to the Free Software
  21 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
  22
  23 */
  24
  25 #ifndef _DEMAC_CONFIG_H
  26 #define _DEMAC_CONFIG_H
  27
  28 /* Build-time choices for libdemac.
  29  * Note that this file is included by both .c and .S files. */
  30
  31 #ifdef ROCKBOX
  32
  33 #include "config.h"
  34
  35 #ifndef __ASSEMBLER__
  36 #include "codeclib.h"
  37 #include <codecs.h>
  38 #endif
  39
  40 #define APE_OUTPUT_DEPTH 29
  41
  42 /* On ARMv4, using 32 bit ints for the filters is faster. */
  43 #if defined(CPU_ARM) && (ARM_ARCH == 4)
  44 #define FILTER_BITS 32
  45 #endif
  46
  47 #if CONFIG_CPU == PP5002
  48 /* Code in IRAM for speed, not enough IRAM for the insane filter buffer. */
  49 #define ICODE_SECTION_DEMAC_ARM   .icode
  50 #define ICODE_ATTR_DEMAC          ICODE_ATTR
  51 #define IBSS_ATTR_DEMAC_INSANEBUF
  52 #elif CONFIG_CPU == PP5020
  53 /* Not enough IRAM for the insane filter buffer. */
  54 #define ICODE_SECTION_DEMAC_ARM   .text
  55 #define ICODE_ATTR_DEMAC
  56 #define IBSS_ATTR_DEMAC_INSANEBUF
  57 #else
  58 #define ICODE_SECTION_DEMAC_ARM   .text
  59 #define ICODE_ATTR_DEMAC
  60 #define IBSS_ATTR_DEMAC_INSANEBUF IBSS_ATTR
  61 #endif
  62
  63 #else /* !ROCKBOX */
  64
  65 #define APE_OUTPUT_DEPTH (ape_ctx->bps)
  66
  67 #define IBSS_ATTR
  68 #define IBSS_ATTR_DEMAC_INSANEBUF
  69 #define ICONST_ATTR
  70 #define ICODE_ATTR
  71 #define ICODE_ATTR_DEMAC
  72
  73 /* Use to give gcc hints on which branch is most likely taken */
  74 #if defined(__GNUC__) && __GNUC__ >= 3
  75 #define LIKELY(x)   __builtin_expect(!!(x), 1)
  76 #define UNLIKELY(x) __builtin_expect(!!(x), 0)
  77 #else
  78 #define LIKELY(x)   (x)
  79 #define UNLIKELY(x) (x)
  80 #endif
  81
  82 #endif /* !ROCKBOX */
  83
  84 /* Defaults */
  85
  86 #ifndef UDIV32
  87 #define UDIV32(a, b) (a / b)
  88 #endif
  89
  90 #ifndef FILTER_HISTORY_SIZE
  91 #define FILTER_HISTORY_SIZE 512
  92 #endif
  93
  94 #ifndef PREDICTOR_HISTORY_SIZE
  95 #define PREDICTOR_HISTORY_SIZE 512
  96 #endif
  97
  98 #ifndef FILTER_BITS
  99 #define FILTER_BITS 16
 100 #endif
 101
 102
 103 #ifndef __ASSEMBLER__
 104 #include <inttypes.h>
 105 #if FILTER_BITS == 32
 106 typedef int32_t filter_int;
 107 #elif FILTER_BITS == 16
 108 typedef int16_t filter_int;
 109 #endif
 110 #endif
 111
 112 #endif /* _DEMAC_CONFIG_H */