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#include "config.h"
#include <string.h>
#include <stdlib.h>
/****h* libAfterImage/tutorials/ASVector
* NAME
* ASVector
* SYNOPSIS
* libAfterImage application for drawing image representing array of
* floating point values ( scientiofic data ).
* DESCRIPTION
* SEE ALSO
* Tutorial 1: ASView - explanation of basic steps needed to use
* libAfterImage and some other simple things.
* Tutorial 2: ASScale - image scaling basics.
* Tutorial 3: ASTile - image tiling and tinting.
* Tutorial 4: ASMerge - scaling and blending of arbitrary number of
* images.
* SOURCE
*/
#include "../afterbase.h"
#include "../afterimage.h"
#include "common.h"
#if 1
CARD16 chan_alpha[] = {0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
0xffff, 0xffff, 0xffff, 0xffff};
CARD16 chan_red [] = {0x0000, 0x7000, 0x0000, 0x0000, 0x0000,
0xffff, 0xffff, 0x7000, 0xffff};
CARD16 chan_green[] = {0x0000, 0x0000, 0x0000, 0xffff, 0xffff,
0xffff, 0x0000, 0x0000, 0xffff};
CARD16 chan_blue [] = {0x0000, 0x7000, 0xffff, 0xffff, 0x0000,
0x0000, 0x0000, 0x0000, 0xffff};
#else
CARD16 chan_alpha[] = {0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF,
0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF};
CARD16 chan_red[] = {0x0000, 0x0000, 0x0000, 0x0000, 0x8888,
0xffff, 0xffff, 0xffff, 0xff00};
CARD16 chan_green[]= {0x0000, 0x0000, 0x8888, 0x8888, 0x0000,
0x0000, 0x8888, 0x8888, 0xff00};
CARD16 chan_blue[] = {0xFFFF, 0x0000, 0xFFFF, 0x0000, 0xFFFF,
0x0000, 0xffff, 0x0000, 0xff00};
#endif
double points[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8} ;
void usage()
{
}
int main(int argc, char* argv[])
{
Display *dpy = NULL;
ASVisual *asv ;
int screen = 0, depth = 0;
unsigned int to_width= 200, to_height = 200;
ASVectorPalette palette = { 9, &(points[0]),
{&chan_blue[0], &chan_green[0],
&chan_red[0], &chan_alpha[0]},
ARGB32_Black} ;
double vector[5 * 5] ;
/* double vector[200*200] ; */
ASImage *vect_im = NULL;
ASImage *temp_im = NULL;
int x, y ;
/* see ASView.1 : */
set_application_name( argv[0] );
#if (HAVE_AFTERBASE_FLAG==1)
set_output_threshold(OUTPUT_LEVEL_DEBUG);
#endif
for( y = 5 ; y > 0 ; --y )
for( x = 1 ; x <= 5 ; ++x )
vector[(5-y)*5+x-1] = (y-1)+(x-1);
#ifndef X_DISPLAY_MISSING
dpy = XOpenDisplay(NULL);
_XA_WM_DELETE_WINDOW = XInternAtom( dpy, "WM_DELETE_WINDOW", False);
screen = DefaultScreen(dpy);
depth = DefaultDepth( dpy, screen );
#endif
/* see ASView.3 : */
asv = create_asvisual( dpy, screen, depth, NULL );
/* see ASGrad.2 : */
temp_im = create_asimage_from_vector( asv, &vector[0],
5, 5,
/* to_width, to_height, */
&palette,
#ifndef X_DISPLAY_MISSING
ASA_XImage,
#else
ASA_ASImage,
#endif
0, ASIMAGE_QUALITY_POOR );
#if 0
vect_im = temp_im ;
#else
vect_im = scale_asimage(asv, temp_im, to_width, to_height,
ASA_ASImage, 100, ASIMAGE_QUALITY_POOR);
#endif
if( vect_im )
{
#ifndef X_DISPLAY_MISSING
/* see ASView.4 : */
Window w = create_top_level_window( asv,
DefaultRootWindow(dpy),
32, 32,
to_width, to_height, 1, 0,
NULL,
"ASVector", NULL );
if( w != None )
{
Pixmap p ;
XMapRaised (dpy, w);
/* see ASView.5 : */
p = asimage2pixmap( asv, DefaultRootWindow(dpy), vect_im,
NULL, True );
// destroy_asimage( &vect_im );
/* see common.c: set_window_background_and_free() : */
p = set_window_background_and_free( w, p );
/* see common.c: wait_closedown() : */
}
wait_closedown(w);
dpy = NULL;
#endif
{
CARD8 * buffer ;
int size ;
if( ASImage2PNGBuff( vect_im, &buffer, &size, NULL ) )
{
FILE * pf = fopen("asvector.png", "w" ) ;
if( pf )
{
fwrite( buffer, size, 1, pf );
fclose(pf);
}
free( buffer );
}else
show_error( "failed to encode image as PNG");
}
ASImage2file( vect_im, NULL, "asvector_copy.png", ASIT_Png, NULL );
destroy_asimage( &vect_im );
//#endif
}
return 0 ;
}
/**************/
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