BMP_IO\
Microsoft BMP bitmap files\
Read and Write Utilities {#bmp_io-microsoft-bmp-bitmap-files-read-and-write-utilities align=”center”}
===========================
BMP_IO is a C++ library which reads or writes the graphics
information in a Microsoft BMP file.
A user program can employ these routines to read a BMP file and extract
and return the graphics information (RGB pixel arrays), or to write
internal RGB pixel arrays into a properly formatted BMP file. The BMP
file format is used for many of the icons seen cluttering up the desktop
of a Windows machine, for instance.
Of course, another interesting application is to read in a BMP file, and
write out the RGB information to a file in another format.
Since some of the data is multibyte, the format of the file can depend
on whether such data is written with the bytes in “little-endian” or
“big-endian” order. The program maintains a variable called
BMP_BYTE_SWAP which controls how the program assumes the bytes are
ordered. Setting this variable to true show be the appropriate value
for little-endian ordering, while false is for big-endian. This
variable can be read by calling the function bmp_byte_swap_get,
or set by calling bmp_byte_swap_set.
Licensing: {#licensing align=”center”}
The computer code and data files described and made available on this
web page are distributed under the GNU LGPL
license.
Languages: {#languages align=”center”}
BMP_IO is available in a C++
version.
BMP, a data directory which contains example
BMP files.
BMP_TO_PPMA, a C++
program which converts BMP files to ASCII PPM format.
BMP_TO_PPMB, a C++
program which converts BMP files to binary PPM format.
PPMA_TO_BMP, a C++
program which converts ASCII PPM files to BMP format.
PPMB_TO_BMP, a C++
program which converts binary PPM files to BMP format.
Reference: {#reference align=”center”}
- David Kay and John Levine,\
Graphics File Formats,\
Second Edition,\
McGraw Hill, 1995.
- John Miano,\
Compressed Image File Formats,\
Addison Wesley, 1999.
- Microsoft Corporation,\
Microsoft Windows Programmer’s Reference,\
Volume 5; Messages, Structures, and Macros,\
Microsoft Press, 1993.
Source Code: {#source-code align=”center”}
Examples and Tests: {#examples-and-tests align=”center”}
List of Routines: {#list-of-routines align=”center”}
- BMP_BYTE_SWAP_GET returns the internal value of
BMP_BYTE_SWAP.
- BMP_BYTE_SWAP_SET sets the internal value of BMP_BYTE_SWAP.
- BMP_08_DATA_READ reads 8 bit image data of the BMP file.
- BMP_08_DATA_WRITE writes 8 bit image data to a BMP file.
- BMP_24_DATA_READ reads 24 bit image data of the BMP file.
- BMP_24_DATA_WRITE writes 24 bit image data to the BMP file.
- BMP_HEADER1_PRINT prints the header information of a BMP file.
- BMP_HEADER1_READ reads the header information of a BMP file.
- BMP_HEADER1_WRITE writes the header information to a BMP file.
- BMP_HEADER2_PRINT prints the bitmap header information of a
BMP file.
- BMP_HEADER2_READ reads the bitmap header information of a BMP
file.
- BMP_HEADER2_WRITE writes the bitmap header information to a
BMP file.
- BMP_PALETTE_PRINT prints the palette data in a BMP file.
- BMP_PALETTE_READ reads the palette information of a BMP file.
- BMP_PALETTE_WRITE writes the palette data to the BMP file.
- BMP_PRINT_TEST tests the BMP print routines.
- BMP_READ reads the header and data of a BMP file.
- BMP_READ_TEST tests the BMP read routines.
- BMP_08_WRITE writes the header and data for a monochrome BMP
file.
- BMP_08_WRITE_TEST tests the BMP write routines.
- BMP_24_WRITE writes the header and data for a BMP file using
three colors.
- BMP_24_WRITE_TEST tests the BMP write routines.
- LONG_INT_READ reads a long int from a file.
- LONG_INT_WRITE writes a long int to a file.
- U_LONG_INT_READ reads an unsigned long int from a file.
- U_LONG_INT_WRITE writes an unsigned long int to a file.
- U_SHORT_INT_READ reads an unsigned short int from a file.
- U_SHORT_INT_WRITE writes an unsigned short int to a file.
You can go up one level to the C++ source codes.
Last revised on 09 December 2005.