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# include "bitmapConfig.h"
# include "bmintern.h"
# include <appDebugon.h>
/************************************************************************/
/* */
/* Make images with standard content. */
/* */
/************************************************************************/
/************************************************************************/
/* */
/* Make a completely transparent image */
/* */
/************************************************************************/
int bmTransparentImage( BitmapDescription * bdOut,
unsigned char ** pBufOut,
int colorEncoding,
int wide,
int high )
{
BitmapDescription bd;
unsigned char * buffer;
switch( colorEncoding )
{
case BMcoRGB8PALETTE:
bd.bdPixelsWide= wide;
bd.bdPixelsHigh= high;
bd.bdHasAlpha= 1;
bd.bdUnit= BMunINCH;
bd.bdXResolution= 72;
bd.bdYResolution= 72;
bd.bdBitsPerSample= 8;
bd.bdSamplesPerPixel= 3;
if ( bd.bdHasAlpha )
{ bd.bdBitsPerPixel= 8; }
else{ bd.bdBitsPerPixel= 4; }
bd.bdColorEncoding= BMcoRGB8PALETTE;
bd.bdColorCount= 3;
bd.bdRGB8Palette= (RGB8Color *)0;
if ( bmCalculateSizes( &bd ) )
{ LDEB(1); return -1; }
buffer= (unsigned char *)malloc( bd.bdBufferLength );
if ( ! buffer )
{ LXDEB(bd.bdBufferLength,buffer); return -1; }
bd.bdRGB8Palette= (RGB8Color *)
malloc( 256* sizeof( RGB8Color ) );
if ( ! bd.bdRGB8Palette )
{
LLDEB(256,bd.bdRGB8Palette);
free( buffer ); return -1;
}
/* transparent */
bd.bdRGB8Palette[0].rgb8Red= 255;
bd.bdRGB8Palette[0].rgb8Green= 255;
bd.bdRGB8Palette[0].rgb8Blue= 255;
bd.bdRGB8Palette[0].rgb8Alpha= 0;
/* white */
bd.bdRGB8Palette[1].rgb8Red= 255;
bd.bdRGB8Palette[1].rgb8Green= 255;
bd.bdRGB8Palette[1].rgb8Blue= 255;
bd.bdRGB8Palette[1].rgb8Alpha= 255;
/* black */
bd.bdRGB8Palette[2].rgb8Red= 0;
bd.bdRGB8Palette[2].rgb8Green= 0;
bd.bdRGB8Palette[2].rgb8Blue= 0;
bd.bdRGB8Palette[2].rgb8Alpha= 255;
memset( buffer, 0, bd.bdBufferLength );
break;
default:
LDEB(colorEncoding); return -1;
}
*bdOut= bd; *pBufOut= buffer;
return 0;
}
/************************************************************************/
/* */
/* Make an image containing just one RGB color. */
/* */
/************************************************************************/
int bmRGBImage( BitmapDescription * bdOut,
unsigned char ** pBufOut,
int colorEncoding,
int r,
int g,
int b,
int wide,
int high )
{
BitmapDescription bd;
unsigned char * buffer;
switch( colorEncoding )
{
case BMcoRGB8PALETTE:
if ( r < 0 || r > 255 )
{ LDEB(r); return -1; }
if ( g < 0 || g > 255 )
{ LDEB(g); return -1; }
if ( b < 0 || b > 255 )
{ LDEB(b); return -1; }
bd.bdPixelsWide= wide;
bd.bdPixelsHigh= high;
bd.bdHasAlpha= 0;
bd.bdUnit= BMunINCH;
bd.bdXResolution= 72;
bd.bdYResolution= 72;
bd.bdBitsPerSample= 8;
bd.bdSamplesPerPixel= 3;
if ( bd.bdHasAlpha )
{ bd.bdBitsPerPixel= 8; }
else{ bd.bdBitsPerPixel= 4; }
bd.bdColorEncoding= BMcoRGB8PALETTE;
bd.bdColorCount= 3;
bd.bdRGB8Palette= (RGB8Color *)0;
if ( bmCalculateSizes( &bd ) )
{ LDEB(1); return -1; }
buffer= (unsigned char *)malloc( bd.bdBufferLength );
if ( ! buffer )
{ LXDEB(bd.bdBufferLength,buffer); return -1; }
bd.bdRGB8Palette= (RGB8Color *)
malloc( 256* sizeof( RGB8Color ) );
if ( ! bd.bdRGB8Palette )
{
LLDEB(256,bd.bdRGB8Palette);
free( buffer ); return -1;
}
/* color */
bd.bdRGB8Palette[0].rgb8Red= r;
bd.bdRGB8Palette[0].rgb8Green= g;
bd.bdRGB8Palette[0].rgb8Blue= b;
bd.bdRGB8Palette[0].rgb8Alpha= 255;
/* white */
bd.bdRGB8Palette[1].rgb8Red= 255;
bd.bdRGB8Palette[1].rgb8Green= 255;
bd.bdRGB8Palette[1].rgb8Blue= 255;
bd.bdRGB8Palette[1].rgb8Alpha= 255;
/* black */
bd.bdRGB8Palette[2].rgb8Red= 0;
bd.bdRGB8Palette[2].rgb8Green= 0;
bd.bdRGB8Palette[2].rgb8Blue= 0;
bd.bdRGB8Palette[2].rgb8Alpha= 255;
memset( buffer, 0, bd.bdBufferLength );
break;
default:
LDEB(colorEncoding); return -1;
}
*bdOut= bd; *pBufOut= buffer;
return 0;
}
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