c4b2a030c4
* contrib/hbbmp/core.c
* contrib/hbbmp/hbbmp.ch
* contrib/hbbmp/hbbmp.h
* contrib/hbbmp/hbbmp.hbx
+ added new PRG functions:
hb_bmp_frombitmap( <cBitMap>, <nAlign>, <nWidth>, <nHeight>, ;
[<nDepth>=1], [<nDPI>=72], [<aPalette>], ;
[@<nError>] ) -> <pBMP> | NIL
hb_bmp_colorreset( <pBMP> )
* contrib/hbct/dattime3.c
! struct timespec initialization
* contrib/hbplist.txt
+ added hbbmp library
* contrib/hbzebra/coredraw.c
* contrib/hbzebra/hbzebra.hbx
+ added new PRG function:
hb_zebra_getbitmap( <hZebra>, <nAlign>=8, <lBottomUp>=.F., ;
@<nWidth>, @<nHeight>, <nScaleX>, <nScaleY>, ;
<nBorder> ) -> <cBitMap> | NIL
* contrib/hbzebra/tests/bmp.prg
+ added example for much faster BMP creation using hb_zebra_getbitmap() and
hb_bmp_frombitmap() functions
* src/rtl/filebuf.c
! casting
* src/vm/extrap.c
* allocate stack buffer dynamically, in new Linux version IGSTKSZ is
defined as sysconf( _SC_SIGSTKSZ ) so it cannot be used as legal size
for static arrays
141 lines
6.8 KiB
C
141 lines
6.8 KiB
C
/*
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* BMP image library for Harbour
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*
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* Copyright 2025 Przemyslaw Czerpak <druzus /at/ priv.onet.pl>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file LICENSE.txt. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA (or visit https://www.gnu.org/licenses/).
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*
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* As a special exception, the Harbour Project gives permission for
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* additional uses of the text contained in its release of Harbour.
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*
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* The exception is that, if you link the Harbour libraries with other
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* files to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the Harbour library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the Harbour
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* Project under the name Harbour. If you copy code from other
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* Harbour Project or Free Software Foundation releases into a copy of
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* Harbour, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for Harbour, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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*
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*/
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#ifndef _HBBMP_H_
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#define _HBBMP_H_
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#include "hbdefs.h"
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#include "hbbmp.ch"
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HB_EXTERN_BEGIN
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#define HB_BMP_DEPTH_DEFAULT 1
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#define HB_BMP_DPI_DEFAULT 72
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#define HB_BMP_INCHES_PER_METRE 39.3701
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#define HB_BMP_FILEHEADER_SIZE 14
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#define HB_BMP_INFOHEADER_MINSIZE 12
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typedef struct _HB_BMPHEADER
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{
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HB_BYTE signature [ 2 ]; /* "BM" */
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HB_BYTE file_size [ 4 ]; /* the size of the BMP file in bytes */
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HB_BYTE reserved1 [ 2 ]; /* reserved, depends on the application, if created manually can be 0 */
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HB_BYTE reserved2 [ 2 ]; /* reserved, depends on the application, if created manually can be 0 */
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HB_BYTE bmpoffset [ 4 ]; /* the offset of the byte where the bitmap image data (pixel array) can be found */
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HB_BYTE headersize [ 4 ]; /* the size of this header, in bytes (40) */
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HB_BYTE width [ 4 ]; /* the bitmap width in pixels (signed integer) */
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HB_BYTE height [ 4 ]; /* the bitmap height in pixels (signed integer) */
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HB_BYTE planes [ 2 ]; /* the number of color planes (must be 1) */
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HB_BYTE bitsperpixel[ 2 ]; /* the number of bits per pixel (color depth): 1, 4, 8, 16, 24 or 32 */
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HB_BYTE compression [ 4 ]; /* the compression method, 0 uncompressed */
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HB_BYTE bitmapsize [ 4 ]; /* the image size (the size of the raw bitmap data), 0 can be used for uncompressed bitmaps */
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HB_BYTE hresolution [ 4 ]; /* the horizontal resolution of the image (pixel per metre, signed integer) */
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HB_BYTE vresolution [ 4 ]; /* the vertical resolution of the image (pixel per metre, signed integer) */
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HB_BYTE clrused [ 4 ]; /* the number of colors in the color palette, or 0 to default to 2^n */
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HB_BYTE clrimportant[ 4 ]; /* the number of important colors used, or 0 when every color is important; generally ignored */
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} HB_BMPHEADER, * PHB_BMPHEADER;
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typedef struct _HB_BMPOS2HEADER
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{
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HB_BYTE headersize [ 4 ]; /* the size of this header, in bytes (12) */
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HB_BYTE width [ 2 ]; /* the bitmap width in pixels (signed integer) */
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HB_BYTE height [ 2 ]; /* the bitmap height in pixels (signed integer) */
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HB_BYTE planes [ 2 ]; /* the number of color planes (must be 1) */
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HB_BYTE bitsperpixel[ 2 ]; /* the number of bits per pixel (color depth): 1, 4, 8, 16, 24 or 32 */
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} HB_BMPOS2HEADER, * PHB_BMPOS2HEADER;
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typedef struct _HB_BMPPALETTEITM
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{
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HB_BYTE blue;
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HB_BYTE green;
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HB_BYTE red;
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HB_BYTE alpha;
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} HB_BMPPALETTEITM, * PHB_BMPPALETTEITM;
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typedef struct _HB_BMPINFO
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{
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int error;
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int width;
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int height;
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int rowlen;
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HB_BOOL fromtop;
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int dpi;
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int depth;
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int clrused;
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HB_BMPPALETTEITM palette[ 256 ];
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HB_BYTE* data;
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} HB_BMPINFO, * PHB_BMPINFO;
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extern HB_EXPORT PHB_BMPINFO hb_bmp_new( int width, int height, int depth, int dpi, int * piError );
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extern HB_EXPORT PHB_BMPINFO hb_bmp_frombitmap( const HB_BYTE * bitmap, int align, int width, int height, int depth, int dpi, const int * palette, int colors, int * piError );
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extern HB_EXPORT PHB_BMPINFO hb_bmp_copy( PHB_BMPINFO pBMP );
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extern HB_EXPORT PHB_BMPINFO hb_bmp_decode( const HB_BYTE * data, HB_SIZE size, int * piError );
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extern HB_EXPORT HB_BYTE * hb_bmp_encode( PHB_BMPINFO pBMP, HB_SIZE * pnSsize );
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extern HB_EXPORT void hb_bmp_free( PHB_BMPINFO pBMP );
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extern HB_EXPORT HB_BYTE * hb_bmp_bitmapptr( PHB_BMPINFO pBMP, HB_SIZE * pnSize );
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extern HB_EXPORT void hb_bmp_seterror( PHB_BMPINFO pBMP, int error );
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extern HB_EXPORT int hb_bmp_error( PHB_BMPINFO pBMP );
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extern HB_EXPORT int hb_bmp_width( PHB_BMPINFO pBMP );
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extern HB_EXPORT int hb_bmp_height( PHB_BMPINFO pBMP );
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extern HB_EXPORT int hb_bmp_depth( PHB_BMPINFO pBMP );
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extern HB_EXPORT void hb_bmp_colorreset( PHB_BMPINFO pBMP );
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extern HB_EXPORT HB_MAXINT hb_bmp_color( PHB_BMPINFO pBMP, int r, int g, int b, int a );
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extern HB_EXPORT HB_BOOL hb_bmp_color2rgb( PHB_BMPINFO pBMP, HB_MAXINT clr, int * r, int * g, int * b, int * a );
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extern HB_EXPORT HB_BOOL hb_bmp_putpixel( PHB_BMPINFO pBMP, int x, int y, HB_MAXINT clr );
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extern HB_EXPORT HB_MAXINT hb_bmp_getpixel( PHB_BMPINFO pBMP, int x, int y );
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extern HB_EXPORT void hb_bmp_line( PHB_BMPINFO pBMP, int x1, int y1, int x2, int y2, HB_MAXINT clr );
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extern HB_EXPORT void hb_bmp_rect( PHB_BMPINFO pBMP, int x, int y, int width, int height, HB_MAXINT clr, HB_BOOL fFill );
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extern HB_EXPORT PHB_BMPINFO hb_bmpParam( int iParam, HB_BOOL fError );
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extern HB_EXPORT void hb_bmpParamFree( int iParam );
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extern HB_EXPORT void hb_bmpReturn( PHB_BMPINFO pBMP );
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HB_EXTERN_END
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#endif /* _HBBMP_H_ */
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