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e679f6f8d6f869205eab3e23ba929e6f509d96ea
harbour-core/contrib/hbbmp/core.c
Przemysław Czerpak e679f6f8d6 2025-08-23 18:49 UTC+0200 Przemyslaw Czerpak (druzus/at/poczta.onet.pl) 
* contrib/hbbmp/core.c
    ! fixed copy & past typos reported by Grigory Filatov. Thanks a lot.
2025-08-23 18:49:07 +02:00

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/*
* BMP image library for Harbour
*
* Copyright 2025 Przemyslaw Czerpak <druzus /at/ priv.onet.pl>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file LICENSE.txt. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA (or visit https://www.gnu.org/licenses/).
*
* As a special exception, the Harbour Project gives permission for
* additional uses of the text contained in its release of Harbour.
*
* The exception is that, if you link the Harbour libraries with other
* files to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the Harbour library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the Harbour
* Project under the name Harbour. If you copy code from other
* Harbour Project or Free Software Foundation releases into a copy of
* Harbour, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for Harbour, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*
*/
#include "hbbmp.h"
#include "hbapi.h"
#include "hbapifs.h"
#include "hbapierr.h"
void hb_bmp_free( PHB_BMPINFO pBMP )
{
if( pBMP->data )
hb_xfree( pBMP->data );
hb_xfree( pBMP );
}
PHB_BMPINFO hb_bmp_new( int width, int height, int depth, int dpi, int * piError )
{
PHB_BMPINFO pBMP = NULL;
HB_BOOL fromtop = height < 0;
if( piError )
*piError = 0;
if( fromtop )
height = -height;
if( dpi == 0 )
dpi = HB_BMP_DPI_DEFAULT;
if( width < 1 || height < 1 || width > 0x10000 || height > 0x10000 )
{
if( piError )
*piError = HB_BMP_ERROR_SIZE;
}
else
{
int rowlen;
switch( depth )
{
case 0:
depth = HB_BMP_DEPTH_DEFAULT;
/* fallthrough */
case 1:
/* 2 color depth BMP is not officially supported,
uncomment line below if you need it */
/* case 2: */
case 4:
case 8:
case 16:
case 24:
case 32:
break;
default:
if( piError )
*piError = HB_BMP_ERROR_DEPTH;
return NULL;
}
pBMP = ( PHB_BMPINFO ) hb_xgrabz( sizeof( HB_BMPINFO ) );
rowlen = ( ( width * depth + 31 ) >> 5 ) << 2;
pBMP->error = 0;
pBMP->width = width;
pBMP->height = height;
pBMP->dpi = dpi;
pBMP->depth = depth;
pBMP->clrused = 0;
pBMP->rowlen = rowlen;
pBMP->fromtop = fromtop;
pBMP->data = ( HB_BYTE * ) hb_xgrabz( rowlen * height );
}
return pBMP;
}
PHB_BMPINFO hb_bmp_copy( PHB_BMPINFO pBMP )
{
PHB_BMPINFO pBMPnew = ( PHB_BMPINFO ) hb_xgrab( sizeof( HB_BMPINFO ) );
memcpy( pBMPnew, pBMP, sizeof( HB_BMPINFO ) );
pBMPnew->data = ( HB_BYTE * ) hb_xgrab( pBMP->rowlen * pBMP->height );
memcpy( pBMPnew->data, pBMP->data, pBMP->rowlen * pBMP->height );
pBMPnew->error = 0;
return pBMPnew;
}
HB_BYTE * hb_bmp_bitmapptr( PHB_BMPINFO pBMP, HB_SIZE * pnSize )
{
if( pnSize )
*pnSize = pBMP->rowlen * pBMP->height;
return pBMP->data;
}
void hb_bmp_seterror( PHB_BMPINFO pBMP, int error )
{
pBMP->error = error;
}
int hb_bmp_error( PHB_BMPINFO pBMP )
{
return pBMP->error;
}
int hb_bmp_width( PHB_BMPINFO pBMP )
{
return pBMP->width;
}
int hb_bmp_height( PHB_BMPINFO pBMP )
{
return pBMP->height;
}
int hb_bmp_depth( PHB_BMPINFO pBMP )
{
return pBMP->depth;
}
HB_MAXINT hb_bmp_color( PHB_BMPINFO pBMP, int r, int g, int b, int a )
{
HB_MAXINT iColor = -1;
pBMP->error = 0;
if( ( r & 0xFF ) != r || ( g & 0xFF ) != g ||
( b & 0xFF ) != b || ( a & 0xFF ) != a )
pBMP->error = HB_BMP_ERROR_COLORVALUE;
else if( pBMP->depth == 32 )
iColor = b | ( g << 8 ) | ( r << 16 ) | ( a << 24 );
else if( pBMP->depth == 24 )
iColor = b | ( g << 8 ) | ( r << 16 );
/* 16 color depth does not have RGB mapping in BMP format
* color indexes have to be used directly and their RGB
* values defined outside BMP structure
*/
else if( pBMP->depth <= 8 )
{
int i;
for( i = 0; i < pBMP->clrused; ++i )
{
if( pBMP->palette[ i ].blue == b &&
pBMP->palette[ i ].green == g &&
pBMP->palette[ i ].red == r &&
pBMP->palette[ i ].alpha == a )
{
iColor = i;
break;
}
}
if( iColor == -1 )
{
if( pBMP->clrused < 1 << pBMP->depth )
{
iColor = pBMP->clrused++;
pBMP->palette[ iColor ].blue = b;
pBMP->palette[ iColor ].green = g;
pBMP->palette[ iColor ].red = r;
pBMP->palette[ iColor ].alpha = a;
}
else
pBMP->error = HB_BMP_ERROR_PALETTEFULL;
}
}
else
pBMP->error = HB_BMP_ERROR_COLORINDEX;
return iColor;
}
HB_BOOL hb_bmp_color2rgb( PHB_BMPINFO pBMP, HB_MAXINT clr, int * r, int * g, int * b, int * a )
{
pBMP->error = HB_BMP_ERROR_COLORINDEX;
* b = * g = * r = * a = -1;
if( clr >= 0 && clr <= HB_LL( 0xFFFFFFFF ) )
{
switch( pBMP->depth )
{
case 1:
case 2:
case 4:
case 8:
if( clr < ( HB_MAXINT ) pBMP->clrused )
{
* b = pBMP->palette[ clr ].blue;
* g = pBMP->palette[ clr ].green;
* r = pBMP->palette[ clr ].red;
* a = pBMP->palette[ clr ].alpha;
pBMP->error = 0;
}
break;
/* 16 color depth does not have RGB mapping in BMP format
* color indexes have to be used directly and their RGB
* values defined outside BMP structure
*/
case 24:
/* ignore alpha channel */
clr &= 0xFFFFFF;
/* fallthrough */
case 32:
* b = clr & 0xFF;
* g = ( clr >> 8 ) & 0xFF;
* r = ( clr >> 16 ) & 0xFF;
* a = ( clr >> 24 ) & 0xFF;
pBMP->error = 0;
break;
}
}
return pBMP->error == 0;
}
HB_BOOL hb_bmp_putpixel( PHB_BMPINFO pBMP, int x, int y, HB_MAXINT clr )
{
if( x < 0 || x >= pBMP->width || y < 0 || y >= pBMP->height )
pBMP->error = HB_BMP_ERROR_RANGE;
else if( clr < 0 || ( clr > ( pBMP->depth <= 8 ? pBMP->clrused :
( pBMP->depth == 16 ? 0xFFFF :
HB_LL( 0xFFFFFFFF ) ) ) ) )
pBMP->error = HB_BMP_ERROR_COLORINDEX;
else
{
int index = ( ( ( pBMP->fromtop ? y : pBMP->height - y - 1 ) *
pBMP->rowlen ) << 3 ) + ( x * pBMP->depth );
HB_BYTE * ptr = &pBMP->data[ index >> 3 ];
int shift = -1;
switch( pBMP->depth )
{
case 1:
shift = 0x07 ^ ( x & 0x07 );
break;
case 2:
shift = ( 0x03 ^ ( x & 0x03 ) ) << 1;
break;
case 4:
shift = ( 0x01 ^ ( x & 0x01 ) ) << 2;
break;
case 8:
*ptr = ( HB_BYTE ) clr;
break;
case 16:
HB_PUT_LE_UINT16( ptr, clr );
break;
case 24:
HB_PUT_LE_UINT24( ptr, clr );
break;
case 32:
HB_PUT_LE_UINT32( ptr, clr );
break;
}
if( shift >= 0 )
*ptr = ( HB_BYTE ) ( ( *ptr & ~( ( ( 0x01 << pBMP->depth ) - 1 ) << shift ) ) | ( clr << shift ) );
pBMP->error = 0;
}
return pBMP->error == 0;
}
HB_MAXINT hb_bmp_getpixel( PHB_BMPINFO pBMP, int x, int y )
{
HB_MAXINT clr = -1;
if( x < 0 || x >= pBMP->width || y < 0 || y >= pBMP->height )
pBMP->error = HB_BMP_ERROR_RANGE;
else
{
int index = ( ( ( pBMP->fromtop ? y : pBMP->height - y - 1 ) *
pBMP->rowlen ) << 3 ) + ( x * pBMP->depth );
HB_BYTE * ptr = &pBMP->data[ index >> 3 ];
int shift = -1;
switch( pBMP->depth )
{
case 1:
shift = 0x07 ^ ( x & 0x07 );
break;
case 2:
shift = ( 0x03 ^ ( x & 0x03 ) ) << 1;
break;
case 4:
shift = ( 0x01 ^ ( x & 0x01 ) ) << 2;
break;
case 8:
clr = *ptr;
break;
case 16:
clr = HB_GET_LE_UINT16( ptr );
break;
case 24:
clr = HB_GET_LE_UINT24( ptr );
break;
case 32:
clr = HB_GET_LE_UINT32( ptr );
break;
}
if( shift >= 0 )
clr = ( *ptr & ( ( ( 0x01 << pBMP->depth ) - 1 ) << shift ) ) >> shift;
pBMP->error = 0;
}
return clr;
}
void hb_bmp_line( PHB_BMPINFO pBMP, int x1, int y1, int x2, int y2, HB_MAXINT clr )
{
if( clr < 0 || ( clr > ( pBMP->depth <= 8 ? pBMP->clrused :
( pBMP->depth == 16 ? 0xFFFF :
HB_LL( 0xFFFFFFFF ) ) ) ) )
pBMP->error = HB_BMP_ERROR_COLORINDEX;
else
{
double dd;
int dx, dy, x, y;
dx = x1 >= x2 ? x1 - x2 : x2 - x1;
dy = y1 >= y2 ? y1 - y2 : y2 - y1;
if( dx >= dy || dy == 0 ? x1 > x2 : y1 > y2 || dx == 0 )
{
int nn = x1;
x1 = x2;
x2 = nn;
nn = y1;
y1 = y2;
y2 = nn;
}
if( dy == 0 )
{
for( x = HB_MAX( x1, 0 ); x <= x2 && x < pBMP->width; ++x )
hb_bmp_putpixel( pBMP, x, y1, clr );
}
else if( dx == 0 )
{
for( y = HB_MAX( y1, 0 ); y <= y2 && y < pBMP->height; ++y )
hb_bmp_putpixel( pBMP, x1, y, clr );
}
else if( dx >= dy )
{
dd = ( double ) ( y2 - y1 ) / ( x2 - x1 );
for( x = HB_MAX( x1, 0 ); x <= x2 && x < pBMP->width; ++x )
hb_bmp_putpixel( pBMP, x, ( int ) ( dd * ( x - x1 ) + 0.50001 ) + y1, clr );
}
else
{
dd = ( double ) ( x2 - x1 ) / ( y2 - y1 );
for( y = HB_MAX( y1, 0 ); y <= y2 && y < pBMP->height; ++y )
hb_bmp_putpixel( pBMP, ( int ) ( dd * ( y - y1 ) + 0.50001 ) + x1, y, clr );
}
pBMP->error = 0;
}
}
void hb_bmp_rect( PHB_BMPINFO pBMP, int x, int y, int width, int height, HB_MAXINT clr, HB_BOOL fFill )
{
if( width < 0 )
{
x += width;
width = - width;
}
if( height < 0 )
{
y += height;
height = - height;
}
if( clr < 0 || ( clr > ( pBMP->depth <= 8 ? pBMP->clrused :
( pBMP->depth == 16 ? 0xFFFF :
HB_LL( 0xFFFFFFFF ) ) ) ) )
pBMP->error = HB_BMP_ERROR_COLORINDEX;
else if( width < 0 || height < 0 ||
x >= pBMP->width || y >= pBMP->height ||
x + width < 0 || y + height < 0 )
pBMP->error = HB_BMP_ERROR_RANGE;
else
{
int x1, y1, x2, y2, xx, yy;
x1 = HB_MAX( x, 0 );
y1 = HB_MAX( y, 0 );
x2 = x1 + width >= pBMP->width ? pBMP->width : x1 + width;
y2 = y1 + height >= pBMP->height ? pBMP->height : y1 + height;
if( fFill )
{
for( xx = x1; xx < x2; ++xx )
{
for( yy = y1; yy < y2; ++yy )
hb_bmp_putpixel( pBMP, xx, yy, clr );
}
}
else
{
if( y >= 0 )
{
for( xx = x1; xx < x2; ++xx )
hb_bmp_putpixel( pBMP, xx, y, clr );
}
if( x >= 0 )
{
for( yy = y1; yy < y2; ++yy )
hb_bmp_putpixel( pBMP, x, yy, clr );
}
if( y2 < pBMP->height )
{
for( xx = x1; xx < x2; ++xx )
hb_bmp_putpixel( pBMP, xx, y2 - 1, clr );
}
if( x2 < pBMP->width )
{
for( yy = y1; yy < y2; ++yy )
hb_bmp_putpixel( pBMP, x2 - 1, yy, clr );
}
}
pBMP->error = 0;
}
}
PHB_BMPINFO hb_bmp_decode( const HB_BYTE * data, HB_SIZE size, int * piError )
{
PHB_BMPINFO pBMP = NULL;
int iError = 0;
if( ! data || size < HB_BMP_FILEHEADER_SIZE + HB_BMP_INFOHEADER_MINSIZE )
iError = HB_BMP_ERROR_CORRUPT;
else
{
PHB_BMPHEADER header = ( PHB_BMPHEADER ) data;
if( header->signature[ 0 ] != 'B' || header->signature[ 1 ] != 'M' )
iError = HB_BMP_ERROR_CORRUPT;
else
{
/* file_size in BMP headers is often wrong so I do not check it
* int file_size = HB_GET_LE_INT32( header->file_size );
*/
int bmpoffset = HB_GET_LE_INT32( header->bmpoffset ),
headersize = HB_GET_LE_INT32( header->headersize ),
width = 0, height = 0, depth = 0, rowlen = 0, dpi = 0,
clrused = 0, palette_bytes = 0;
HB_BOOL fromtop;
if( size < ( HB_SIZE ) ( HB_BMP_FILEHEADER_SIZE +
HB_BMP_INFOHEADER_MINSIZE + headersize ) )
iError = HB_BMP_ERROR_CORRUPT;
else if( headersize == 12 || headersize == 16 )
{
PHB_BMPOS2HEADER header_os2 = ( PHB_BMPOS2HEADER ) header->file_size;
width = HB_GET_LE_UINT16( header_os2->width );
height = HB_GET_LE_UINT16( header_os2->height );
depth = HB_GET_LE_UINT16( header_os2->bitsperpixel );
if( depth <= 8 )
clrused = 0x01 << depth;
dpi = HB_BMP_DPI_DEFAULT;
palette_bytes = 3;
if( depth != 1 && depth != 2 && depth != 4 && depth != 8 && depth != 24 )
iError = HB_BMP_ERROR_CORRUPT;
}
else if( headersize == 40 || headersize == 52 || headersize == 56 ||
headersize == 108 || headersize == 124 )
{
width = HB_GET_LE_INT32( header->width );
height = HB_GET_LE_INT32( header->height );
dpi = ( int ) ( ( double ) HB_GET_LE_INT32( header->hresolution ) / 39.3701 + 0.5 );
depth = HB_GET_LE_UINT16( header->bitsperpixel );
if( depth <= 8 )
{
clrused = HB_GET_LE_INT32( header->clrused );
if( clrused == 0 )
clrused = 0x01 << depth;
}
palette_bytes = 4;
if( ( depth != 1 && depth != 2 && depth != 4 && depth != 8 &&
depth != 16 && depth != 24 && depth != 32 ) )
iError = HB_BMP_ERROR_CORRUPT;
else if( HB_GET_LE_INT32( header->compression ) != 0 )
iError = HB_BMP_ERROR_UNSUPPORTED;
}
else
iError = HB_BMP_ERROR_CORRUPT;
fromtop = height < 0;
if( fromtop )
height = -height;
rowlen = ( ( width * depth + 31 ) >> 5 ) << 2;
if( iError == 0 &&
( HB_BMP_FILEHEADER_SIZE + headersize + clrused * palette_bytes > bmpoffset ||
( HB_SIZE ) bmpoffset + rowlen * height > size ) )
iError = HB_BMP_ERROR_CORRUPT;
else if( iError == 0 )
{
pBMP = hb_bmp_new( width, fromtop ? -height : height, depth, dpi, &iError );
if( pBMP )
{
const HB_BYTE * ptr = data + HB_BMP_FILEHEADER_SIZE + headersize;
int idx, unused = 0;
for( idx = 0; idx < clrused; ++idx )
{
pBMP->palette[ idx ].blue = *ptr++;
pBMP->palette[ idx ].green = *ptr++;
pBMP->palette[ idx ].red = *ptr++;
if( palette_bytes == 4 )
pBMP->palette[ idx ].alpha = *ptr++;
if( pBMP->palette[ idx ].blue == 0 &&
pBMP->palette[ idx ].green == 0 &&
pBMP->palette[ idx ].red == 0 &&
pBMP->palette[ idx ].alpha == 0 )
++unused;
else if( unused > 1 )
unused = 1;
}
if( unused > 1 )
clrused -= unused - 1;
pBMP->clrused = clrused;
memcpy( pBMP->data, data + bmpoffset, rowlen * height );
}
}
}
}
if( piError )
*piError = iError;
return pBMP;
}
HB_BYTE * hb_bmp_encode( PHB_BMPINFO pBMP, HB_SIZE * pnSize )
{
int clrused, bmpoffset, bmpsize, file_size, idx, height, dpi;
PHB_BMPHEADER header;
HB_BYTE * data, * ptr;
/* always allocate area for whole palette for programs which
* do not check number of used colors in BMP header
*/
clrused = pBMP->depth > 8 ? 0 : 0x01 << pBMP->depth;
/* 4 byte alignment is not required inside file */
/* bmpoffset = ( sizeof( HB_BMPHEADER ) + clrused * 4 + 3 ) & ~0x03; */
bmpoffset = sizeof( HB_BMPHEADER ) + clrused * 4;
bmpsize = pBMP->rowlen * pBMP->height;
file_size = bmpoffset + bmpsize;
height = pBMP->fromtop ? -pBMP->height : pBMP->height;
dpi = ( int ) ( HB_BMP_INCHES_PER_METRE * pBMP->dpi + 0.5 );
/* when clrused is set in BMP header to value different then 0 or
* palette size some BMP viewers cannot show BMP correctly so
* I decided to comment code below and always store 0
*/
/*
if( clrused > 0 )
clrused = clrused > pBMP->clrused ? pBMP->clrused : 0;
*/
clrused = 0;
data = ( HB_BYTE * ) hb_xgrab( file_size + 1 );
memset( data, 0, sizeof( HB_BMPHEADER ) );
header = ( PHB_BMPHEADER ) data;
header->signature[ 0 ] = 'B';
header->signature[ 1 ] = 'M';
HB_PUT_LE_UINT32( header->file_size, file_size );
HB_PUT_LE_UINT16( header->reserved1, 0 );
HB_PUT_LE_UINT16( header->reserved2, 0 );
HB_PUT_LE_UINT32( header->bmpoffset, bmpoffset );
HB_PUT_LE_UINT32( header->headersize, sizeof( HB_BMPHEADER ) - HB_BMP_FILEHEADER_SIZE );
HB_PUT_LE_UINT32( header->width, pBMP->width );
HB_PUT_LE_UINT32( header->height, height );
HB_PUT_LE_UINT16( header->planes, 1 );
HB_PUT_LE_UINT16( header->bitsperpixel, pBMP->depth );
HB_PUT_LE_UINT32( header->compression, 0 );
HB_PUT_LE_UINT32( header->bitmapsize, bmpsize );
HB_PUT_LE_UINT32( header->hresolution, dpi );
HB_PUT_LE_UINT32( header->vresolution, dpi );
HB_PUT_LE_UINT32( header->clrused, clrused );
HB_PUT_LE_UINT32( header->clrimportant, 0 );
ptr = data + sizeof( HB_BMPHEADER );
for( idx = 0; idx < pBMP->clrused; ++idx )
{
*ptr++ = pBMP->palette[ idx ].blue;
*ptr++ = pBMP->palette[ idx ].green;
*ptr++ = pBMP->palette[ idx ].red;
*ptr++ = pBMP->palette[ idx ].alpha;
}
while( ptr < data + bmpoffset )
*ptr++ = 0;
memcpy( data + bmpoffset, pBMP->data, pBMP->rowlen * pBMP->height );
data[ file_size ] = 0;
*pnSize = file_size;
pBMP->error = 0;
return data;
}
/* Collectable pointer support */
static HB_GARBAGE_FUNC( hb_bmp_destructor )
{
PHB_BMPINFO * pBMPptr = ( PHB_BMPINFO * ) Cargo;
if( *pBMPptr )
{
hb_bmp_free( *pBMPptr );
*pBMPptr = NULL;
}
}
static const HB_GC_FUNCS s_gcBMPfuncs =
{
hb_bmp_destructor,
hb_gcDummyMark
};
void hb_bmpParamFree( int iParam )
{
PHB_BMPINFO * pBMPPtr = ( PHB_BMPINFO * ) hb_parptrGC( &s_gcBMPfuncs, iParam );
if( pBMPPtr && *pBMPPtr )
{
hb_bmp_free( *pBMPPtr );
*pBMPPtr = NULL;
}
}
PHB_BMPINFO hb_bmpParam( int iParam, HB_BOOL fError )
{
PHB_BMPINFO * pBMPPtr = ( PHB_BMPINFO * ) hb_parptrGC( &s_gcBMPfuncs, iParam );
if( pBMPPtr && *pBMPPtr )
return *pBMPPtr;
else if( fError )
hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
return NULL;
}
void hb_bmpReturn( PHB_BMPINFO pBMP )
{
if( pBMP )
{
PHB_BMPINFO * pBMPPtr = ( PHB_BMPINFO * )
hb_gcAllocate( sizeof( PHB_BMPINFO ), &s_gcBMPfuncs );
*pBMPPtr = pBMP;
hb_retptrGC( pBMPPtr );
}
else
hb_ret();
}
/* PRG functions */
HB_FUNC( HB_BMP_NEW )
{
int iError = 0;
PHB_BMPINFO pBMP = hb_bmp_new( hb_parni( 1 ), hb_parni( 2 ),
hb_parnidef( 3, 1 ),
hb_parnidef( 4, HB_BMP_DPI_DEFAULT ),
&iError );
hb_storni( iError, 5 );
hb_bmpReturn( pBMP );
}
HB_FUNC( HB_BMP_COPY )
{
PHB_BMPINFO pBMP = hb_bmpParam( 1, HB_TRUE );
if( pBMP )
pBMP = hb_bmp_copy( pBMP );
hb_bmpReturn( pBMP );
}
HB_FUNC( HB_BMP_DECODE )
{
const char * data = hb_parc( 1 );
if( data )
{
int iError = 0;
PHB_BMPINFO pBMP = hb_bmp_decode( ( const HB_BYTE * ) data, hb_parclen( 1 ), &iError );
hb_storni( iError, 2 );
hb_bmpReturn( pBMP );
}
else
hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
}
HB_FUNC( HB_BMP_ENCODE )
{
PHB_BMPINFO pBMP = hb_bmpParam( 1, HB_TRUE );
if( pBMP )
{
HB_SIZE size;
HB_BYTE * data = hb_bmp_encode( pBMP, &size );
hb_retclen_buffer( ( char * ) data, size );
}
}
HB_FUNC( HB_BMP_FREE )
{
hb_bmpParamFree( 1 );
}
HB_FUNC( HB_BMP_ERROR )
{
PHB_BMPINFO pBMP = hb_bmpParam( 1, HB_TRUE );
if( pBMP )
hb_retni( hb_bmp_error( pBMP ) );
}
HB_FUNC( HB_BMP_WIDTH )
{
PHB_BMPINFO pBMP = hb_bmpParam( 1, HB_TRUE );
if( pBMP )
hb_retni( hb_bmp_width( pBMP ) );
}
HB_FUNC( HB_BMP_HEIGHT )
{
PHB_BMPINFO pBMP = hb_bmpParam( 1, HB_TRUE );
if( pBMP )
hb_retni( hb_bmp_height( pBMP ) );
}
HB_FUNC( HB_BMP_DEPTH )
{
PHB_BMPINFO pBMP = hb_bmpParam( 1, HB_TRUE );
if( pBMP )
hb_retni( hb_bmp_depth( pBMP ) );
}
HB_FUNC( HB_BMP_COLOR )
{
PHB_BMPINFO pBMP = hb_bmpParam( 1, HB_TRUE );
if( pBMP )
hb_retnint( hb_bmp_color( pBMP, hb_parni( 2 ), hb_parni( 3 ), hb_parni( 4 ), hb_parni( 5 ) ) );
}
HB_FUNC( HB_BMP_COLOR2RGB )
{
PHB_BMPINFO pBMP = hb_bmpParam( 1, HB_TRUE );
if( pBMP )
{
int r, g, b, a;
hb_retl( hb_bmp_color2rgb( pBMP, hb_parnint( 2 ), &r, &g, &b, &a ) );
hb_storni( r, 3 );
hb_storni( g, 4 );
hb_storni( b, 5 );
hb_storni( a, 6 );
}
}
HB_FUNC( HB_BMP_PUTPIXEL )
{
PHB_BMPINFO pBMP = hb_bmpParam( 1, HB_TRUE );
if( pBMP )
hb_retl( hb_bmp_putpixel( pBMP, hb_parni( 2 ), hb_parni( 3 ), hb_parnint( 4 ) ) );
}
HB_FUNC( HB_BMP_GETPIXEL )
{
PHB_BMPINFO pBMP = hb_bmpParam( 1, HB_TRUE );
if( pBMP )
hb_retnint( hb_bmp_getpixel( pBMP, hb_parni( 2 ), hb_parni( 3 ) ) );
}
HB_FUNC( HB_BMP_LINE )
{
PHB_BMPINFO pBMP = hb_bmpParam( 1, HB_TRUE );
if( pBMP )
hb_bmp_line( pBMP, hb_parni( 2 ), hb_parni( 3 ), hb_parni( 4 ), hb_parni( 5 ), hb_parnint( 6 ) );
}
HB_FUNC( HB_BMP_RECT )
{
PHB_BMPINFO pBMP = hb_bmpParam( 1, HB_TRUE );
if( pBMP )
hb_bmp_rect( pBMP, hb_parni( 2 ), hb_parni( 3 ), hb_parni( 4 ), hb_parni( 5 ), hb_parnint( 6 ), hb_parldef( 7, HB_TRUE ) );
}
HB_FUNC( HB_BMP_LOAD )
{
const char * pszFileName = hb_parc( 1 );
if( pszFileName )
{
int iError = 0;
HB_SIZE size;
HB_BYTE * data = hb_fileLoad( pszFileName, 0x1000000, &size );
if( data )
{
PHB_BMPINFO pBMP = hb_bmp_decode( data, size, &iError );
hb_bmpReturn( pBMP );
hb_xfree( data );
}
else
iError = HB_BMP_ERROR_FILEREAD;
hb_storni( iError, 2 );
}
else
hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
}
HB_FUNC( HB_BMP_SAVE )
{
PHB_BMPINFO pBMP = hb_bmpParam( 1, HB_TRUE );
if( pBMP )
{
const char * pszFileName = hb_parc( 2 );
if( pszFileName )
{
HB_SIZE size;
HB_BYTE * data = hb_bmp_encode( pBMP, &size );
HB_BOOL fResult = hb_fileSave( pszFileName, data, size );
if( ! fResult )
hb_bmp_seterror( pBMP, HB_BMP_ERROR_FILEWRITE );
hb_retl( fResult );
hb_xfree( data );
}
else
hb_errRT_BASE_SubstR( EG_ARG, 3012, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
}
}
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