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DP Tool Club 11
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demo5.c
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C/C++ Source or Header
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1993-09-12
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/*************************************************************************
DEMO 5
Demonstrates Planar Bitmap Clipping Functions
Themie Gouthas
**************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <ctype.h>
#include <alloc.h>
#include <dos.h>
#include "xlib.h"
#include "xpbitmap.h"
#include "xpbmclip.h"
#include "xrect.h"
#include "xbmtools.h"
#include "xline.h"
#include "xtext.h"
/* Macro to make pointer parameters model independent */
#define FARPTR(x) (MK_FP(FP_SEG(x),FP_OFF(x)))
int i,j;
char turtle[] = {
20,30,
/* | . | . | . | . */
8,14, 0, 0, 0, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
8, 2,14, 0, 0, 0, 0, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
8, 2, 2, 0, 0, 0, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
8, 0, 2,14, 0, 0,14,14,14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
8, 0, 2, 5, 0, 4, 4, 4, 4,14,14, 0, 0, 0, 0, 0, 0, 0, 0, 0,
8, 0, 2, 2, 4, 4, 0, 4, 4, 0, 4,14, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 2, 4, 4, 4, 0, 4, 4, 0, 4, 4,14, 0, 0, 0, 0, 0, 0, 0,
0, 0, 2, 4, 4, 4, 0, 0, 0, 0, 4, 4,14, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 4, 0, 4, 4, 4, 0, 0, 0, 4, 0, 0, 2, 2, 0, 0, 0,
0, 0, 0, 4, 0, 4, 4, 4, 0, 4, 4, 4, 0,14, 0, 0, 2, 2, 0, 0,
0, 0, 0, 4, 4, 0, 0, 0, 4, 4, 0, 4, 0, 4, 2, 2, 2, 2, 0, 0,
0, 0, 0, 4, 4, 4, 0, 4, 4, 0, 4, 4, 0, 4,14, 2, 2, 2, 0, 0,
0, 0, 0, 4, 4, 4, 0, 0, 0, 4, 4, 0, 4, 0, 0, 2, 2, 0, 0, 0,
0, 0, 0, 2, 4, 4, 4, 4, 4, 4, 4, 0, 4, 4,14, 2, 0, 0, 0, 0,
0, 0, 2, 2, 0, 4, 4, 4, 4, 0, 0, 4, 4, 4, 4, 0, 0, 0, 0, 0,
2, 2, 2, 2, 4, 0, 0, 4, 4, 0, 4, 4, 0, 4,14, 0, 0, 0, 0, 0,
0, 2, 2, 0, 4, 4, 4, 0, 0, 4, 4, 0, 4, 0, 2, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 4, 4, 0, 4, 4, 4, 0, 4, 4, 2,14, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 4, 4, 4, 4, 4, 0, 4, 0, 2, 2,14,14, 0, 0,
0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 0, 4, 4, 2, 2, 2, 2, 2,14, 0,
0, 0, 0, 0, 0, 0, 0, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 5,14, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 2, 2, 0, 0, 2, 2, 2, 0, 2,14,
0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 0, 0, 0, 0, 2, 2, 2,14,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 0, 0, 0, 0, 2, 2, 2,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 0, 0, 0, 0, 2, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
char far *vbm;
void error(char * string){
x_text_mode();
printf("%s\n",string);
exit(0);
}
typedef struct {
unsigned int size; /* valid only for the first header */
unsigned char ImageWidth;
unsigned char ImageHeight;
unsigned int ImagePtr;
unsigned int MaskPtr;
} alignment_header;
void main(){
int i,j,k,handle,size,comp_size;
char far *bm;
alignment_header far * tempbuff;
x_set_mode(X_MODE_360x240,360);
;NonVisual_Offs=16384;
x_text_init();
x_set_font(FONT_8x15);
x_bgprintf(0,0,0,14,0," This is a demo of PBM clipping.");
getch();
bm=farmalloc(20*30+2);
x_bm_to_pbm(MK_FP(_DS,turtle),bm);
x_set_cliprect(4,5,50,150);
x_line(0,TopClip-1,320,TopClip-1,23,0);
x_line(0,BottomClip+1,320,BottomClip+1,23,0);
x_line((LeftClip<<2)-1,0,(LeftClip<<2)-1,200,23,0);
x_line((RightClip<<2)+4,0,(RightClip<<2)+4,200,23,0);
for (k=0;k<8;k++){
for (j=1;j<ScrnPhysicalHeight;j+=30)
for (i=0;i<ScrnPhysicalPixelWidth-20;i+=20)
x_put_pbm(i+k+1,j,0,bm);
}
x_line(0,TopClip-1,320,TopClip-1,23,0);
x_line(0,BottomClip+1,320,BottomClip+1,23,0);
x_line((LeftClip<<2)-1,0,(LeftClip<<2)-1,200,23,0);
x_line((RightClip<<2)+4,0,(RightClip<<2)+4,200,23,0);
x_rect_fill((LeftClip<<2),TopClip,(RightClip<<2)+3,BottomClip,0,0);
x_bgprintf(0,BottomClip+4,0,14,0," Now the clipping...");
getch();
for (k=0;k<8;k++){
for (j=1;j<ScrnPhysicalHeight;j+=30)
for (i=0;i<ScrnPhysicalPixelWidth-20;i+=20)
x_put_pbm_clipxy(i+k+1,j,0,bm);
}
for (k=0;k<8;k++){
for (j=1;j<ScrnPhysicalHeight;j+=30)
for (i=0;i<ScrnPhysicalPixelWidth-20;i+=20)
x_put_pbm_clipxy(i+7+1,j+k,0,bm);
}
for (k=7;k>=0;k--){
for (j=1;j<ScrnPhysicalHeight;j+=30)
for (i=0;i<ScrnPhysicalPixelWidth-20;i+=20)
x_put_pbm_clipxy(i+k+1,j+7,0,bm);
}
for (k=7;k>=0;k--){
for (j=1;j<ScrnPhysicalHeight;j+=30)
for (i=0;i<ScrnPhysicalPixelWidth-20;i+=20)
x_put_pbm_clipxy(i+1,j+k,0,bm);
}
getch();
x_text_mode();
printf("%d %d %d %d\n",LeftClip,TopClip,RightClip,BottomClip);
}