136 lines
4 KiB
C
136 lines
4 KiB
C
#ifndef _BMP_H_
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#define _BMP_H_
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#pragma warning(disable:4996)
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/**************************************************************
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QDBMP - Quick n' Dirty BMP
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v1.0.0 - 2007-04-07
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http://qdbmp.sourceforge.net
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The library supports the following BMP variants:
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1. Uncompressed 32 BPP (alpha values are ignored)
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2. Uncompressed 24 BPP
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3. Uncompressed 8 BPP (indexed color)
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QDBMP is free and open source software, distributed
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under the MIT licence.
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Copyright (c) 2007 Chai Braudo (braudo@users.sourceforge.net)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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**************************************************************/
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#include <stdio.h>
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/* Type definitions */
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#ifndef UINT
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#define UINT unsigned long int
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#endif
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#ifndef USHORT
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#define USHORT unsigned short
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#endif
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#ifndef UCHAR
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#define UCHAR unsigned char
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#endif
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/* Version */
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#define QDBMP_VERSION_MAJOR 1
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#define QDBMP_VERSION_MINOR 0
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#define QDBMP_VERSION_PATCH 1
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/* Error codes */
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typedef enum
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{
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BMP_OK = 0, /* No error */
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BMP_ERROR, /* General error */
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BMP_OUT_OF_MEMORY, /* Could not allocate enough memory to complete the operation */
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BMP_IO_ERROR, /* General input/output error */
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BMP_FILE_NOT_FOUND, /* File not found */
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BMP_FILE_NOT_SUPPORTED, /* File is not a supported BMP variant */
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BMP_FILE_INVALID, /* File is not a BMP image or is an invalid BMP */
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BMP_INVALID_ARGUMENT, /* An argument is invalid or out of range */
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BMP_TYPE_MISMATCH, /* The requested action is not compatible with the BMP's type */
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BMP_ERROR_NUM
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} BMP_STATUS;
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/* Bitmap image */
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typedef struct _BMP BMP;
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/*********************************** Public methods **********************************/
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/* Construction/destruction */
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BMP* BMP_Create ( UINT width, UINT height, USHORT depth );
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void BMP_Free ( BMP* bmp );
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/* I/O */
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BMP* BMP_ReadFile ( const char* filename );
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void BMP_WriteFile ( BMP* bmp, const char* filename );
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/* Meta info */
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UINT BMP_GetWidth ( BMP* bmp );
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UINT BMP_GetHeight ( BMP* bmp );
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USHORT BMP_GetDepth ( BMP* bmp );
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/* Pixel access */
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void BMP_GetPixelRGB ( BMP* bmp, UINT x, UINT y, UCHAR* r, UCHAR* g, UCHAR* b );
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void BMP_SetPixelRGB ( BMP* bmp, UINT x, UINT y, UCHAR r, UCHAR g, UCHAR b );
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void BMP_GetPixelIndex ( BMP* bmp, UINT x, UINT y, UCHAR* val );
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void BMP_SetPixelIndex ( BMP* bmp, UINT x, UINT y, UCHAR val );
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unsigned char* BMP_GetImageData ( BMP *bmp );
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/* Palette handling */
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void BMP_GetPaletteColor ( BMP* bmp, UCHAR index, UCHAR* r, UCHAR* g, UCHAR* b );
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void BMP_SetPaletteColor ( BMP* bmp, UCHAR index, UCHAR r, UCHAR g, UCHAR b );
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/* Error handling */
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BMP_STATUS BMP_GetError ();
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const char* BMP_GetErrorDescription ();
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/* Useful macro that may be used after each BMP operation to check for an error */
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#define BMP_CHECK_ERROR( output_file, return_value ) \
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if ( BMP_GetError() != BMP_OK ) \
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{ \
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fprintf( ( output_file ), "BMP error: %s\n", BMP_GetErrorDescription() ); \
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return( return_value ); \
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} \
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#endif
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