rt-thread/bsp/imxrt/libraries/drivers/vglite/font/buf_reader.h

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/****************************************************************************
*
* The MIT License (MIT)
*
* Copyright 2020 NXP
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* 'Software'), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject
* to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL VIVANTE AND/OR ITS SUPPLIERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*****************************************************************************/
/* Bufferred reader interface */
#ifndef _BUFFERRED_READER_
#define _BUFFERRED_READER_
typedef struct buffered_reader {
char *data_buf;
int size;
int index;
int is_valid;
} bufferred_reader_t;
#define E_BUF_IO_OUT_OF_MEMORY -10
#define E_BUF_IO_READ_ERROR -11
#define E_BUF_INVALID_HANDLE -12
#define E_BUF_IO_INVALID_PARAMETERS -13
int is_buffered_handle_valid(bufferred_reader_t *fd);
int bufferred_fopen(bufferred_reader_t *fd, char *buf, int size);
int bufferred_ftell(bufferred_reader_t *fd);
int bufferred_fread(
void *ptr,
int size,
int nmemb,
bufferred_reader_t *fd
);
int bufferred_fseek(
bufferred_reader_t *fd,
int offset,
int direction
);
int bufferred_fclose(bufferred_reader_t *fd);
char *bufferred_fgets(char* buff, int len, bufferred_reader_t *fd);
#endif //!_BUFFERRED_READER_