initial commit, 4.5 stable

thirdparty/libtheora/internal.h

@@ -0,0 +1,120 @@
+/********************************************************************
+ *                                                                  *
+ * THIS FILE IS PART OF THE OggTheora SOFTWARE CODEC SOURCE CODE.   *
+ * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
+ * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
+ * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
+ *                                                                  *
+ * THE Theora SOURCE CODE IS COPYRIGHT (C) 2002-2009                *
+ * by the Xiph.Org Foundation and contributors                      *
+ * https://www.xiph.org/                                            *
+ *                                                                  *
+ ********************************************************************
+
+  function:
+
+ ********************************************************************/
+#if !defined(_internal_H)
+# define _internal_H (1)
+# include <stdlib.h>
+# include <limits.h>
+# if defined(HAVE_CONFIG_H)
+#  include "config.h"
+# endif
+# include "theora/codec.h"
+# include "theora/theora.h"
+# include "ocintrin.h"
+
+# if !defined(__GNUC_PREREQ)
+#  if defined(__GNUC__)&&defined(__GNUC_MINOR__)
+#   define __GNUC_PREREQ(_maj,_min) \
+ ((__GNUC__<<16)+__GNUC_MINOR__>=((_maj)<<16)+(_min))
+#  else
+#   define __GNUC_PREREQ(_maj,_min) 0
+#  endif
+# endif
+
+# if defined(_MSC_VER)
+/*Disable missing EMMS warnings.*/
+#  pragma warning(disable:4799)
+/*Thank you Microsoft, I know the order of operations.*/
+#  pragma warning(disable:4554)
+# endif
+/*You, too, gcc.*/
+# if __GNUC_PREREQ(4,2)
+#  pragma GCC diagnostic ignored "-Wparentheses"
+# endif
+/*Et tu, clang.*/
+# if defined(__clang__)
+#  pragma clang diagnostic ignored "-Wparentheses"
+# endif
+
+/*Some assembly constructs require aligned operands.
+  The following macros are _only_ intended for structure member declarations.
+  Although they will sometimes work on stack variables, gcc will often silently
+   ignore them.
+  A separate set of macros could be made for manual stack alignment, but we
+   don't actually require it anywhere.*/
+# if defined(OC_X86_ASM)||defined(OC_ARM_ASM)
+#  if defined(__GNUC__)
+#   define OC_ALIGN8(expr) expr __attribute__((aligned(8)))
+#   define OC_ALIGN16(expr) expr __attribute__((aligned(16)))
+#  elif defined(_MSC_VER)
+#   define OC_ALIGN8(expr) __declspec (align(8)) expr
+#   define OC_ALIGN16(expr) __declspec (align(16)) expr
+#  else
+#   error "Alignment macros required for this platform."
+#  endif
+# endif
+# if !defined(OC_ALIGN8)
+#  define OC_ALIGN8(expr) expr
+# endif
+# if !defined(OC_ALIGN16)
+#  define OC_ALIGN16(expr) expr
+# endif
+
+
+
+/*This library's version.*/
+# define OC_VENDOR_STRING "Xiph.Org libtheora 1.2.0 20250329 (Ptalarbvorm)"
+
+/*Theora bitstream version.*/
+# define TH_VERSION_MAJOR (3)
+# define TH_VERSION_MINOR (2)
+# define TH_VERSION_SUB   (1)
+# define TH_VERSION_CHECK(_info,_maj,_min,_sub) \
+ ((_info)->version_major>(_maj)||(_info)->version_major==(_maj)&& \
+ ((_info)->version_minor>(_min)||(_info)->version_minor==(_min)&& \
+ (_info)->version_subminor>=(_sub)))
+
+
+
+/*A map from the index in the zig zag scan to the coefficient number in a
+   block.*/
+extern const unsigned char OC_FZIG_ZAG[128];
+/*A map from the coefficient number in a block to its index in the zig zag
+   scan.*/
+extern const unsigned char OC_IZIG_ZAG[64];
+/*A map from physical macro block ordering to bitstream macro block
+   ordering within a super block.*/
+extern const unsigned char OC_MB_MAP[2][2];
+/*A list of the indices in the oc_mb_map array that can be valid for each of
+   the various chroma decimation types.*/
+extern const unsigned char OC_MB_MAP_IDXS[TH_PF_NFORMATS][12];
+/*The number of indices in the oc_mb_map array that can be valid for each of
+   the various chroma decimation types.*/
+extern const unsigned char OC_MB_MAP_NIDXS[TH_PF_NFORMATS];
+
+
+
+int oc_ilog(unsigned _v);
+void *oc_aligned_malloc(size_t _sz,size_t _align);
+void oc_aligned_free(void *_ptr);
+void **oc_malloc_2d(size_t _height,size_t _width,size_t _sz);
+void **oc_calloc_2d(size_t _height,size_t _width,size_t _sz);
+void oc_free_2d(void *_ptr);
+
+void oc_ycbcr_buffer_flip(th_ycbcr_buffer _dst,
+ const th_ycbcr_buffer _src);
+
+#endif