// ====================================================
// ＢＯＸ(x1,y1) - (x2,y2),c
// ====================================================
void box_sub(int x1,int y1,int x2,int y2,int c1,int c2,int c3,int c4)
{
gr_hline(x1,y1,x2,y1,c1);
gr_hline(x1,y2,x2,y2,c3);
gr_vline(x1,y1,x1,y2,c2);
gr_vline(x2,y1,x2,y2,c4);
}
// ====================================================
// ＢＯＸ(x1,y1) - (x2,y2),c
// ====================================================
void gr_box(int x1,int y1,int x2,int y2,int c)
{
gr_hline(x1,y1,x2,y1,c);
gr_hline(x1,y2,x2,y2,c);
gr_vline(x1,y1,x1,y2,c);
gr_vline(x2,y1,x2,y2,c);
}
void vline2(int x0,int y0,int x1,int y1,int col)
{
int yc;
/*
int ytmp;
if(y0>y1) {
ytmp=y0;y0=y1;y1=ytmp;
}
*/
yc = (y0+y1)/2;
gr_vline(x0,y0 ,x0,yc,col); // (差分)縦の線1.
gr_vline(x1,yc+1,x1,y1,col); // (差分)縦の線2.
}
/*********************************************************************
* 1サンプルの1ビット分を描画
*********************************************************************
* v : 0 か 非0 信号レベル.
* diff : 0 か 非0 信号反転が起きた.
*/
static void plot_signals(int x,int y,int val,int old)
{
int col0,col1,col2,i,d;
col0 = 0;
col1 = BACK_COLOR ;
col2 = SIG_COLOR2 ;
if((x % 40)==0) col0=blue;
if(x==0) return;
x += 8;
gr_vline(x+1,y,x+1,y-AIN_GRAPH_H,col2); //縦の線(先行線).
gr_vline(x,y,x,y-AIN_GRAPH_H,col0); //縦の線(現在線).
for(i=1;i<5;i++) {
d = AIN_GRAPH_H * i / 5;
gr_pset(x,y-d , blue); // ベースライン赤.
}
gr_line(x-1,y-old,x,y-val,SIG_COLOR);
}
/*********************************************************************
* 1サンプルの1ビット分を描画
*********************************************************************
* v : 0 か 非0 信号レベル.
* diff : 0 か 非0 信号反転が起きた.
*/
void plot_signal(int x,int y,int v,int diff)
{
int col0,col1,col2;
if(v) { col0 = FRAME_COLOR; col1 = SIG_COLOR ; }
else { col0 = SIG_COLOR; col1 = BACK_COLOR ; }
if(diff) { col2 = SIG_COLOR2;}
else { col2 = BACK_COLOR;}
if(diff) gr_vline(x,y-1,x,y- H_HEIGHT,col2); //縦の線.
if(v) {
gr_pset(x,y - H_HEIGHT,col1); // Hレベルの色.
}else{
gr_pset(x,y - 2 ,col0); // Lの色.
gr_pset(x,y - 1 ,col0); // Lの色.
}
gr_pset(x,y ,FRAME_COLOR); // ベースライン赤.
gr_pset(x,y- H_HEIGHT-1,FRAME_COLOR2); // Hレベルライン赤.
}
/*********************************************************************
* 1サンプルの1ビット分を描画
*********************************************************************
*/
void plot_analog(int x,int y,int val,int old_val)
{
int diff = old_val - val;
int yc = 128+ANALOG_BASE;
int y0 = 256+ANALOG_BASE - old_val;
int y1 = 256+ANALOG_BASE - val;
if(x==SCREEN_X0) { //左端.
gr_vline(x-1,ANALOG_BASE,x-1,256+ANALOG_BASE,0);
}
gr_pset(x,yc ,FRAME_COLOR); // ベースライン赤.
gr_pset(x,yc-129,FRAME_COLOR2); // Hレベルライン赤.
gr_pset(x,yc+129,FRAME_COLOR2); // Lレベルライン赤.
if(diff) vline2(x-1,y0,x,y1,SIG_COLOR1); // (差分)縦の線.
else gr_pset(x,y1,SIG_COLOR1); // 信号の色.
}
void gr_universal_uline(int a1, int b1, int a2, int b2)
{
int dx, dy, incr1, incr2, D, x, y, xend, c, pixels_left;
int x1, y1;
int sign_x = 1, sign_y = 1, step, reverse, i;
if (a1==a2) {
gr_vline(b1,b2,a1);
return;
}
if (b1==b2) {
gr_hline(a1,a2,b1);
return;
}
dx = a2 - a1;
dy = b2 - b1;
if (dx < 0) {
sign_x = -1;
dx *= -1;
}
if (dy < 0) {
sign_y = -1;
dy *= -1;
}
/* decide increment sign by the slope sign */
if (sign_x == sign_y)
step = 1;
else
step = -1;
if (dy > dx) { /* chooses axis of greatest movement (make * dx) */
EXCHG(a1, b1);
EXCHG(a2, b2);
EXCHG(dx, dy);
reverse = 1;
} else
reverse = 0;
/* note error check for dx==0 should be included here */
if (a1 > a2) { /* start from the smaller coordinate */
x = a2;
y = b2;
x1 = a1;
y1 = b1;
} else {
x = a1;
y = b1;
x1 = a2;
y1 = b2;
}
/* Note dx=n implies 0 - n or (dx+1) pixels to be set */
/* Go round loop dx/4 times then plot last 0,1,2 or 3 pixels */
/* In fact (dx-1)/4 as 2 pixels are already plottted */
xend = (dx - 1) / 4;
pixels_left = (dx - 1) % 4; /* number of pixels left over at the
* end */
plot(x, y, reverse);
plot(x1, y1, reverse); /* plot first two points */
incr2 = 4 * dy - 2 * dx;
if (incr2 < 0) { /* slope less than 1/2 */
c = 2 * dy;
incr1 = 2 * c;
D = incr1 - dx;
for (i = 0; i < xend; i++) { /* plotting loop */
++x;
--x1;
if (D < 0) {
/* pattern 1 forwards */
plot(x, y, reverse);
plot(++x, y, reverse);
/* pattern 1 backwards */
plot(x1, y1, reverse);
plot(--x1, y1, reverse);
D += incr1;
} else {
if (D < c) {
/* pattern 2 forwards */
plot(x, y, reverse);
plot(++x, y += step, reverse);
/* pattern 2 backwards */
plot(x1, y1, reverse);
plot(--x1, y1 -= step, reverse);
} else {
/* pattern 3 forwards */
plot(x, y += step, reverse);
plot(++x, y, reverse);
/* pattern 3 backwards */
plot(x1, y1 -= step, reverse);
plot(--x1, y1, reverse);
}
D += incr2;
}
} /* end for */
/* plot last pattern */
if (pixels_left) {
if (D < 0) {
plot(++x, y, reverse); /* pattern 1 */
if (pixels_left > 1)
plot(++x, y, reverse);
if (pixels_left > 2)
plot(--x1, y1, reverse);
} else {
if (D < c) {
plot(++x, y, reverse); /* pattern 2 */
if (pixels_left > 1)
plot(++x, y += step, reverse);
if (pixels_left > 2)
plot(--x1, y1, reverse);
} else {
/* pattern 3 */
plot(++x, y += step, reverse);
if (pixels_left > 1)
plot(++x, y, reverse);
if (pixels_left > 2)
plot(--x1, y1 -= step, reverse);
}
}
} /* end if pixels_left */
}
/* end slope < 1/2 */
else { /* slope greater than 1/2 */
c = 2 * (dy - dx);
incr1 = 2 * c;
D = incr1 + dx;
for (i = 0; i < xend; i++) {
++x;
--x1;
if (D > 0) {
/* pattern 4 forwards */
plot(x, y += step, reverse);
plot(++x, y += step, reverse);
/* pattern 4 backwards */
plot(x1, y1 -= step, reverse);
plot(--x1, y1 -= step, reverse);
D += incr1;
} else {
if (D < c) {
/* pattern 2 forwards */
plot(x, y, reverse);
plot(++x, y += step, reverse);
/* pattern 2 backwards */
plot(x1, y1, reverse);
plot(--x1, y1 -= step, reverse);
} else {
/* pattern 3 forwards */
plot(x, y += step, reverse);
plot(++x, y, reverse);
/* pattern 3 backwards */
plot(x1, y1 -= step, reverse);
plot(--x1, y1, reverse);
}
D += incr2;
}
} /* end for */
/* plot last pattern */
if (pixels_left) {
if (D > 0) {
plot(++x, y += step, reverse); /* pattern 4 */
if (pixels_left > 1)
plot(++x, y += step, reverse);
if (pixels_left > 2)
plot(--x1, y1 -= step, reverse);
} else {
if (D < c) {
plot(++x, y, reverse); /* pattern 2 */
if (pixels_left > 1)
plot(++x, y += step, reverse);
if (pixels_left > 2)
plot(--x1, y1, reverse);
} else {
/* pattern 3 */
plot(++x, y += step, reverse);
if (pixels_left > 1)
plot(++x, y, reverse);
if (pixels_left > 2) {
if (D > c) /* step 3 */
plot(--x1, y1 -= step, reverse);
else /* step 2 */
plot(--x1, y1, reverse);
}
}
}
}
}
}
