tornavis/source/blender/blenloader/BLO_blend_defs.h

62 lines
1.7 KiB
C

/* SPDX-FileCopyrightText: 2023 Blender Authors
*
* SPDX-License-Identifier: GPL-2.0-or-later */
#pragma once
/** \file
* \ingroup blenloader
* \brief defines for blend-file codes.
*/
/* INTEGER CODES */
#ifdef __BIG_ENDIAN__
/* Big Endian */
# define BLEND_MAKE_ID(a, b, c, d) ((int)(a) << 24 | (int)(b) << 16 | (c) << 8 | (d))
#else
/* Little Endian */
# define BLEND_MAKE_ID(a, b, c, d) ((int)(d) << 24 | (int)(c) << 16 | (b) << 8 | (a))
#endif
/**
* Codes used for #BHead.code.
*
* These coexist with ID codes such as #ID_OB, #ID_SCE ... etc.
*/
enum {
/**
* Arbitrary allocated memory
* (typically owned by #ID's, will be freed when there are no users).
*/
BLO_CODE_DATA = BLEND_MAKE_ID('D', 'A', 'T', 'A'),
/**
* Used for #Global struct.
*/
BLO_CODE_GLOB = BLEND_MAKE_ID('G', 'L', 'O', 'B'),
/**
* Used for storing the encoded SDNA string
* (decoded into an #SDNA on load).
*/
BLO_CODE_DNA1 = BLEND_MAKE_ID('D', 'N', 'A', '1'),
/**
* Used to store thumbnail previews, written between #REND and #GLOB blocks,
* (ignored for regular file reading).
*/
BLO_CODE_TEST = BLEND_MAKE_ID('T', 'E', 'S', 'T'),
/**
* Used for #RenderInfo, basic Scene and frame range info,
* can be easily read by other applications without writing a full blend file parser.
*/
BLO_CODE_REND = BLEND_MAKE_ID('R', 'E', 'N', 'D'),
/**
* Used for #UserDef, (user-preferences data).
* (written to #BLENDER_STARTUP_FILE & #BLENDER_USERPREF_FILE).
*/
BLO_CODE_USER = BLEND_MAKE_ID('U', 'S', 'E', 'R'),
/**
* Terminate reading (no data).
*/
BLO_CODE_ENDB = BLEND_MAKE_ID('E', 'N', 'D', 'B'),
};
#define BLEN_THUMB_MEMSIZE_FILE(_x, _y) (sizeof(int) * (2 + (size_t)(_x) * (size_t)(_y)))