82 lines
2.7 KiB
C
82 lines
2.7 KiB
C
/* ****************************************************************************
|
|
* file/file.h -- libcasio internal macros for decoding/encoding.
|
|
* Copyright (C) 2017 Thomas "Cakeisalie5" Touhey <thomas@touhey.fr>
|
|
*
|
|
* This file is part of libcasio.
|
|
* libcasio is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation; either version 3.0 of the License,
|
|
* or (at your option) any later version.
|
|
*
|
|
* libcasio is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
* See the GNU Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with libcasio; if not, see <http://www.gnu.org/licenses/>.
|
|
* ************************************************************************* */
|
|
#ifndef LOCAL_FILE_H
|
|
# define LOCAL_FILE_H 1
|
|
# include "../internals.h"
|
|
# include "decode/decode.h"
|
|
|
|
/* ---
|
|
* Macros for interacting with the buffer.
|
|
* --- */
|
|
|
|
/* Read from a stream. */
|
|
|
|
# define READ(CASIO__TO, CASIO__SZ) /* normal read */ { \
|
|
size_t size = CASIO__SZ; \
|
|
int READ_err = casio_read(buffer, (CASIO__TO), &size); \
|
|
if (READ_err) return (READ_err); }
|
|
# define FREAD(CASIO__TO, CASIO__SZ) /* fail-less read */ \
|
|
size_t size = CASIO__SZ; \
|
|
err = casio_read(buffer, (CASIO__TO), &size);
|
|
# define GREAD(CASIO__TO, CASIO__SZ) /* read with goto fail */ \
|
|
size_t size = CASIO__SZ; \
|
|
if ((err = casio_read(buffer, (CASIO__TO), &size))) \
|
|
goto fail;
|
|
|
|
/* Read using size of the object. */
|
|
|
|
# define DREAD(CASIO__TO) \
|
|
READ(&CASIO__TO, sizeof(CASIO__TO))
|
|
# define GDREAD(CASIO__TO) \
|
|
GREAD(&CASIO__TO, sizeof(CASIO__TO))
|
|
|
|
/* Skip. */
|
|
|
|
# define SKIP(CASIO__SZ) { \
|
|
int SKIP_err = casio_skip(buffer, CASIO__SZ); \
|
|
if (SKIP_err) return (SKIP_err); }
|
|
# define GSKIP(CASIO__SZ) { \
|
|
err = casio_skip(buffer, CASIO__SZ); \
|
|
if (err) goto fail; }
|
|
|
|
/* Write. */
|
|
|
|
# define WRITE(CASIO__BUF, CASIO__SZ) { \
|
|
int WRITE_err = casio_write(buffer, (CASIO__BUF), (CASIO__SZ)); \
|
|
if (WRITE_err) return (WRITE_err); }
|
|
# define DWRITE(CASIO__OBJECT) \
|
|
WRITE(&(CASIO__OBJECT), sizeof(CASIO__OBJECT))
|
|
|
|
/* ---
|
|
* Picture utilities.
|
|
* --- */
|
|
|
|
# define alloc_pixels(W, H) \
|
|
casio_alloc(sizeof(casio_pixel_t*) * \
|
|
(H) + sizeof(casio_pixel_t) * (W) * (H), 1)
|
|
# define prepare_pixels(I, W, H) { \
|
|
unsigned int PIXPREP_y; \
|
|
casio_pixel_t *PIXPREP_line = (casio_pixel_t*)&(I)[(H)]; \
|
|
for (PIXPREP_y = 0; PIXPREP_y < (H); PIXPREP_y++) { \
|
|
(I)[PIXPREP_y] = PIXPREP_line; \
|
|
PIXPREP_line += (W); \
|
|
}}
|
|
|
|
#endif /* LOCAL_FILE_H */
|