212 lines
7.2 KiB
C
212 lines
7.2 KiB
C
/****************************************************************************
|
|
* apps/graphics/tiff/tiff_internal.h
|
|
*
|
|
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef __APPS_GRAPHICS_TIFF_TIFF_INTERNAL_H
|
|
#define __APPS_GRAPHICS_TIFF_TIFF_INTERNAL_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <sys/types.h>
|
|
#include <stdint.h>
|
|
|
|
#include <nuttx/nx/nxglib.h>
|
|
#include <apps/tiff.h>
|
|
|
|
/****************************************************************************
|
|
* Pre-Processor Definitions
|
|
****************************************************************************/
|
|
/* Image Type ***************************************************************/
|
|
|
|
#define IMGFLAGS_BILEV_BIT (1 << 0)
|
|
#define IMGFLAGS_GREY_BIT (1 << 1)
|
|
#define IMGFLAGS_GREY8_BIT (1 << 2)
|
|
#define IMGFLAGS_RGB_BIT (1 << 3)
|
|
#define IMGFLAGS_RGB565_BIT (1 << 4)
|
|
|
|
#define IMGFLAGS_FMT_Y1 (IMGFLAGS_BILEV_BIT)
|
|
#define IMGFLAGS_FMT_Y4 (IMGFLAGS_GREY_BIT)
|
|
#define IMGFLAGS_FMT_Y8 (IMGFLAGS_GREY_BIT|IMGFLAGS_GREY8_BIT)
|
|
#define IMGFLAGS_FMT_RGB16_565 (IMGFLAGS_RGB_BIT)
|
|
#define IMGFLAGS_FMT_RGB24 (IMGFLAGS_RGB_BIT|IMGFLAGS_RGB565_BIT)
|
|
|
|
#define IMGFLAGS_ISBILEV(f) \
|
|
(((f) & IMGFLAGS_BILEV_BIT) != 0)
|
|
#define IMGFLAGS_ISGREY(f) \
|
|
(((f) & IMGFLAGS_GREY_BIT) != 0)
|
|
#define IMGFLAGS_ISGREY4(f) \
|
|
(((f) & (IMGFLAGS_GREY_BIT|IMGFLAGS_GREY8_BIT)) == IMGFLAGS_GREY_BIT)
|
|
#define IMGFLAGS_ISGREY8(f) \
|
|
(((f) & (IMGFLAGS_GREY_BIT|IMGFLAGS_GREY8_BIT)) == (IMGFLAGS_GREY_BIT|IMGFLAGS_GREY8_BIT))
|
|
#define IMGFLAGS_ISRGB(f) \
|
|
(((f) & IMGFLAGS_FMT_RGB24) != 0)
|
|
|
|
/****************************************************************************
|
|
* Public Types
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
#undef EXTERN
|
|
#if defined(__cplusplus)
|
|
#define EXTERN extern "C"
|
|
extern "C" {
|
|
#else
|
|
#define EXTERN extern
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: tiff_read
|
|
*
|
|
* Description:
|
|
* Read TIFF data from the specified file
|
|
*
|
|
* Input Parameters:
|
|
* fd - Open file descriptor to read from
|
|
* buffer - Read-only buffer containing the data to be written
|
|
* count - The number of bytes to write
|
|
*
|
|
* Returned Value:
|
|
* On success, then number of bytes read; Zero is returned on EOF.
|
|
* Otherwise, a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
EXTERN ssize_t tiff_read(int fd, FAR void *buffer, size_t count);
|
|
|
|
/****************************************************************************
|
|
* Name: tiff_write
|
|
*
|
|
* Description:
|
|
* Write TIFF data to the specified file
|
|
*
|
|
* Input Parameters:
|
|
* fd - Open file descriptor to write to
|
|
* buffer - Read-only buffer containing the data to be written
|
|
* count - The number of bytes to write
|
|
*
|
|
* Returned Value:
|
|
* Zero (OK) on success. A negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
EXTERN int tiff_write(int fd, FAR const void *buffer, size_t count);
|
|
|
|
/****************************************************************************
|
|
* Name: tiff_putint16
|
|
*
|
|
* Description:
|
|
* Write two bytes to the outfile.
|
|
*
|
|
* Input Parameters:
|
|
* fd - File descriptor to be used.
|
|
* value - The 2-byte, uint16_t value to write
|
|
*
|
|
* Returned Value:
|
|
* Zero (OK) on success. A negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
EXTERN int tiff_putint16(int fd, uint16_t value);
|
|
|
|
/****************************************************************************
|
|
* Name: tiff_putint32
|
|
*
|
|
* Description:
|
|
* Write four bytes to the outfile.
|
|
*
|
|
* Input Parameters:
|
|
* fd - File descriptor to be used.
|
|
* value - The 4-byte, uint32_t value to write
|
|
*
|
|
* Returned Value:
|
|
* Zero (OK) on success. A negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
EXTERN int tiff_putint32(int fd, uint32_t value);
|
|
|
|
/****************************************************************************
|
|
* Name: tiff_putstring
|
|
*
|
|
* Description:
|
|
* Write a string of fixed length to the outfile.
|
|
*
|
|
* Input Parameters:
|
|
* fd - File descriptor to be used.
|
|
* string - A pointer to the memory containing the string
|
|
* len - The length of the string (including the NUL terminator)
|
|
*
|
|
* Returned Value:
|
|
* Zero (OK) on success. A negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
EXTERN int tiff_putstring(int fd, FAR const char *string, int len);
|
|
|
|
/****************************************************************************
|
|
* Name: tiff_wordalign
|
|
*
|
|
* Description:
|
|
* Pad a file with zeros as necessary to achieve word alignament.
|
|
*
|
|
* Input Parameters:
|
|
* fd - File descriptor to be used.
|
|
* size - The current size of the file
|
|
*
|
|
* Returned Value:
|
|
* The new size of the file on success. A negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
EXTERN ssize_t tiff_wordalign(int fd, size_t size);
|
|
|
|
#undef EXTERN
|
|
#if defined(__cplusplus)
|
|
}
|
|
#endif
|
|
|
|
#endif /* __APPS_GRAPHICS_TIFF_TIFF_INTERNAL_H */
|
|
|