96 lines
4.4 KiB
C
96 lines
4.4 KiB
C
/*====================================================================*
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- Copyright (C) 2001 Leptonica. All rights reserved.
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-
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- Redistribution and use in source and binary forms, with or without
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- modification, are permitted provided that the following conditions
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- are met:
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- 1. Redistributions of source code must retain the above copyright
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- notice, this list of conditions and the following disclaimer.
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- 2. Redistributions in binary form must reproduce the above
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- copyright notice, this list of conditions and the following
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- disclaimer in the documentation and/or other materials
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- provided with the distribution.
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-
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- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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- ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANY
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- CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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- EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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- OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*====================================================================*/
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#ifndef LEPTONICA_BMP_H
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#define LEPTONICA_BMP_H
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/*!
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* \file bmp.h
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*
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* <pre>
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* This file is here to describe the fields in the header of
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* the BMP file. These fields are not used directly in Leptonica.
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* The only thing we use are the sizes of these two headers.
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* Furthermore, because of potential namespace conflicts with
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* the typedefs and defined sizes, we have changed the names
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* to protect anyone who may also need to use the original definitions.
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* Thanks to J. D. Bryan for pointing out the potential problems when
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* developing on Win32 compatible systems.
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* </pre>
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*/
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/*-------------------------------------------------------------*
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* BMP file header *
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*-------------------------------------------------------------*/
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/*! BMP file header */
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struct BMP_FileHeader
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{
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l_int16 bfType; /*!< file type; must be "BM" */
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l_int16 bfSize; /*!< length of the file;
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sizeof(BMP_FileHeader) +
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sizeof(BMP_InfoHeader) +
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size of color table +
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size of DIB bits */
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l_int16 bfFill1; /*!< remainder of the bfSize field */
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l_int16 bfReserved1; /*!< don't care (set to 0) */
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l_int16 bfReserved2; /*!< don't care (set to 0) */
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l_int16 bfOffBits; /*!< offset from beginning of file */
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l_int16 bfFill2; /*!< remainder of the bfOffBits field */
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};
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typedef struct BMP_FileHeader BMP_FH;
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/*! Number of bytes in a BMP file header */
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#define BMP_FHBYTES sizeof(BMP_FH)
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/*-------------------------------------------------------------*
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* BMP info header *
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*-------------------------------------------------------------*/
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/*! BMP info header */
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struct BMP_InfoHeader
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{
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l_int32 biSize; /*!< size of the BMP_InfoHeader struct */
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l_int32 biWidth; /*!< bitmap width in pixels */
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l_int32 biHeight; /*!< bitmap height in pixels */
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l_int16 biPlanes; /*!< number of bitmap planes */
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l_int16 biBitCount; /*!< number of bits per pixel */
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l_int32 biCompression; /*!< compress format (0 == uncompressed) */
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l_int32 biSizeImage; /*!< size of image in bytes */
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l_int32 biXPelsPerMeter; /*!< pixels per meter in x direction */
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l_int32 biYPelsPerMeter; /*!< pixels per meter in y direction */
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l_int32 biClrUsed; /*!< number of colors used */
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l_int32 biClrImportant; /*!< number of important colors used */
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};
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typedef struct BMP_InfoHeader BMP_IH;
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/*! Number of bytes in a BMP info header */
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#define BMP_IHBYTES sizeof(BMP_IH)
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#endif /* LEPTONICA_BMP_H */
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