1/********************************************************************
2 * *
3 * THIS FILE IS PART OF THE OggTheora SOFTWARE CODEC SOURCE CODE. *
4 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
5 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
6 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
7 * *
8 * THE Theora SOURCE CODE IS COPYRIGHT (C) 2002-2009 *
9 * by the Xiph.Org Foundation and contributors http://www.xiph.org/ *
10 * *
11 ********************************************************************
12
13 function:
14 last mod: $Id$
15
16 ********************************************************************/
17#if !defined(_internal_H)
18# define _internal_H (1)
19# include <stdlib.h>
20# include <limits.h>
21# if defined(HAVE_CONFIG_H)
22# include "config.h"
23# endif
24# include "theora/codec.h"
25# include "theora/theora.h"
26# include "ocintrin.h"
27
28# if !defined(__GNUC_PREREQ)
29# if defined(__GNUC__)&&defined(__GNUC_MINOR__)
30# define __GNUC_PREREQ(_maj,_min) \
31 ((__GNUC__<<16)+__GNUC_MINOR__>=((_maj)<<16)+(_min))
32# else
33# define __GNUC_PREREQ(_maj,_min) 0
34# endif
35# endif
36
37# if defined(_MSC_VER)
38/*Disable missing EMMS warnings.*/
39# pragma warning(disable:4799)
40/*Thank you Microsoft, I know the order of operations.*/
41# pragma warning(disable:4554)
42# endif
43/*You, too, gcc.*/
44# if __GNUC_PREREQ(4,2)
45# pragma GCC diagnostic ignored "-Wparentheses"
46# endif
47
48/*Some assembly constructs require aligned operands.
49 The following macros are _only_ intended for structure member declarations.
50 Although they will sometimes work on stack variables, gcc will often silently
51 ignore them.
52 A separate set of macros could be made for manual stack alignment, but we
53 don't actually require it anywhere.*/
54# if defined(OC_X86_ASM)||defined(OC_ARM_ASM)
55# if defined(__GNUC__)
56# define OC_ALIGN8(expr) expr __attribute__((aligned(8)))
57# define OC_ALIGN16(expr) expr __attribute__((aligned(16)))
58# elif defined(_MSC_VER)
59# define OC_ALIGN8(expr) __declspec (align(8)) expr
60# define OC_ALIGN16(expr) __declspec (align(16)) expr
61# else
62# error "Alignment macros required for this platform."
63# endif
64# endif
65# if !defined(OC_ALIGN8)
66# define OC_ALIGN8(expr) expr
67# endif
68# if !defined(OC_ALIGN16)
69# define OC_ALIGN16(expr) expr
70# endif
71
72
73
74/*This library's version.*/
75# define OC_VENDOR_STRING "Xiph.Org libtheora 1.2.0alpha 20100924 (Ptalarbvorm)"
76
77/*Theora bitstream version.*/
78# define TH_VERSION_MAJOR (3)
79# define TH_VERSION_MINOR (2)
80# define TH_VERSION_SUB (1)
81# define TH_VERSION_CHECK(_info,_maj,_min,_sub) \
82 ((_info)->version_major>(_maj)||(_info)->version_major==(_maj)&& \
83 ((_info)->version_minor>(_min)||(_info)->version_minor==(_min)&& \
84 (_info)->version_subminor>=(_sub)))
85
86
87
88/*A map from the index in the zig zag scan to the coefficient number in a
89 block.*/
90extern const unsigned char OC_FZIG_ZAG[128];
91/*A map from the coefficient number in a block to its index in the zig zag
92 scan.*/
93extern const unsigned char OC_IZIG_ZAG[64];
94/*A map from physical macro block ordering to bitstream macro block
95 ordering within a super block.*/
96extern const unsigned char OC_MB_MAP[2][2];
97/*A list of the indices in the oc_mb_map array that can be valid for each of
98 the various chroma decimation types.*/
99extern const unsigned char OC_MB_MAP_IDXS[TH_PF_NFORMATS][12];
100/*The number of indices in the oc_mb_map array that can be valid for each of
101 the various chroma decimation types.*/
102extern const unsigned char OC_MB_MAP_NIDXS[TH_PF_NFORMATS];
103
104
105
106int oc_ilog(unsigned _v);
107void *oc_aligned_malloc(size_t _sz,size_t _align);
108void oc_aligned_free(void *_ptr);
109void **oc_malloc_2d(size_t _height,size_t _width,size_t _sz);
110void **oc_calloc_2d(size_t _height,size_t _width,size_t _sz);
111void oc_free_2d(void *_ptr);
112
113void oc_ycbcr_buffer_flip(th_ycbcr_buffer _dst,
114 const th_ycbcr_buffer _src);
115
116#endif
117