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templeos-info/public/Wb/Adam/Gr/GrBitMap.HC

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2024-03-16 10:26:19 +00:00
#help_index "Graphics"
Option(OPTf_WARN_HEADER_MISMATCH,OFF);
public Bool GrPlot0(CDC *dc=gr.dc,I64 x,I64 y)
{//2D. No clipping or transformation or thick.
U8 *dst;
I32 *db;
I64 d,dist;
CColorROPU32 c,color=dc->color,bkcolor=dc->bkcolor;
if (dc->flags & DCF_LOCATE_NEAREST) {
dist=DistSqrI64(x,y,dc->cur_x,dc->cur_y);
if (dist<=dc->nearest_dist)
dc->nearest_dist=dist;
}
if (dc->flags & DCF_RECORD_EXTENTS) {
if (x<dc->min_x) dc->min_x=x;
if (x>dc->max_x) dc->max_x=x;
if (y<dc->min_y) dc->min_y=y;
if (y>dc->max_y) dc->max_y=y;
}
if (dc->flags & DCF_DONT_DRAW)
return TRUE;
d=dc->width_internal*y+x;
if (db=dc->depth_buf) {
db+=d;
if (0<=dc->db_z<=*db)
*db=dc->db_z;
else
return TRUE;
}
if (color.c1.rop&(ROPBF_DITHER|ROPBF_PROBABILITY_DITHER)) {
if (color.c1.rop&ROPBF_PROBABILITY_DITHER) {
if (RandU16<dc->dither_probability_u16) {
color.c1.rop=color.c0.rop;
color.c0=color.c1;
}
} else {
if ((x^y)&1) {
color.c1.rop=color.c0.rop;
color.c0=color.c1;
}
}
}
dst=dc->body+d;
switch [color.c0.rop] {
case ROPB_EQU:
case ROPB_MONO:
*dst=color.c0.color;
break;
case ROPB_COLLISION:
c=*dst;
if (c!=TRANSPARENT && c!=bkcolor.c0.color)
dc->collision_cnt++;
break;
case ROPB_XOR:
*dst^=color.c0.color;
break;
}
return TRUE;
}
Option(OPTf_WARN_HEADER_MISMATCH,ON);
public I64 GrPeek0(CDC *dc=gr.dc,I64 x,I64 y)
{//2D. No clipping or transformation.
return dc->body[dc->width_internal*y+x];
}
#help_index "Graphics;Graphics/Device Contexts"
public I64 GrBlot(CDC *dc=gr.dc,I64 x,I64 y,CDC *img)
{//2D. Clipping but not transformation..
I64 i,j,k,k1,kk,kk1,w1,h1,w2,h2,dist,
leading_pixels,leading_pixel_mask,whole_I64s,
trailing_pixels,trailing_pixel_mask,
reg bit_shift,win_z_buf_line_inc,win_z_buf_line_dec,win_z_num,
color_mask;
U8 reg *dst,*src;
I32 *db;
U16 reg *win_z_buf_ptr;
CColorROPU32 color,c,old_color;
CTask *win_task;
if (dc->flags & DCF_SCRN_BITMAP) {
win_task=dc->win_task;
x+=win_task->scroll_x;
y+=win_task->scroll_y;
}
if (x<0)
w1=-x;
else
w1=0;
if (y<0)
h1=-y;
else
h1=0;
w2=img->width;
h2=img->height;
if (dc->flags & DCF_SCRN_BITMAP) {
x+=win_task->pix_left;
y+=win_task->pix_top;
}
if (dc->flags & DCF_LOCATE_NEAREST) {
dist=DistSqrI64(x+img->width>>1,y+img->height>>1,dc->cur_x,dc->cur_y);
if (dist<=dc->nearest_dist)
dc->nearest_dist=dist;
}
if (dc->flags & DCF_SCRN_BITMAP) {
if (x+w1<0) w1=-x;
if (x+w2>win_task->pix_right+1)
w2=win_task->pix_right+1-x;
if (y+h1<0) h1=-y;
if (y+h2>win_task->pix_bottom+1)
h2=win_task->pix_bottom+1-y;
}
if (x+w2>dc->width)
w2=dc->width-x;
if (y+h2>dc->height)
h2=dc->height-y;
if (w1<w2<=img->width && h1<h2<=img->height) {
if (dc->flags & DCF_RECORD_EXTENTS) {
if (x+w1<dc->min_x) dc->min_x=x+w1;
if (x+w2-1>dc->max_x) dc->max_x=x+w2-1;
if (y+h1<dc->min_y) dc->min_y=y+h1;
if (y+h2-1>dc->max_y) dc->max_y=y+h2-1;
}
if (dc->flags & DCF_DONT_DRAW)
return 1;
old_color=dc->color;
db=dc->depth_buf;
dc->depth_buf=NULL;
dc->color&=~ROPF_DITHER;
color=dc->color;
leading_pixels=-(w1+x)&7;
leading_pixel_mask=gr.to_8_bits[0xFF>>leading_pixels];
bit_shift=-x&7;
whole_I64s=(w2-w1-leading_pixels)>>3;
if (whole_I64s<0) whole_I64s=0;
trailing_pixels=(x+w2)&7;
trailing_pixel_mask=gr.to_8_bits[0xFF<<trailing_pixels&0xFF];
if (leading_pixels+trailing_pixels>w2-w1) {
leading_pixel_mask|=trailing_pixel_mask;
trailing_pixels=0;
}
switch (color.c0.rop) {
case ROPB_COLLISION: //TODO: Might want to check win_z_buf
color =dc->bkcolor.c0.color;
k=h1*img->width_internal;
k1=(h1+y)*dc->width_internal+x;
for (j=h2-h1;j;j--) {
for (i=w1;i<w2;i++) {
c=dc->body[k1+i];
if (c!=TRANSPARENT&&c!=color&&img->body[k+i]!=TRANSPARENT)
dc->collision_cnt++;
}
k+=img->width_internal;
k1+=dc->width_internal;
}
break;
case ROPB_MONO:
color_mask=gr.to_8_colors[color.c0.color];
if (img->flags&DCF_NO_TRANSPARENTS) {
if (!(dc->flags & DCF_SCRN_BITMAP) || dc->flags&DCF_ON_TOP)
win_z_buf_ptr=NULL;
else {
win_z_num=win_task->win_z_num;
win_z_buf_ptr=gr.win_z_buf(U8 *)+((h1+y)/FONT_HEIGHT*TEXT_COLS+
(w1+x)/FONT_WIDTH)*sizeof(U16);
win_z_buf_line_dec=whole_I64s;
if (leading_pixels)
win_z_buf_line_dec++;
if (trailing_pixels)
win_z_buf_line_dec++;
win_z_buf_line_dec*=sizeof(U16);
win_z_buf_line_inc=TEXT_COLS*sizeof(U16)-win_z_buf_line_dec;
}
kk = h1 *img ->width_internal+w1;
kk1=(h1+y)*dc->width_internal+x+w1;
kk =(kk-bit_shift)&~7+bit_shift;
bit_shift*=8;
if (win_z_buf_ptr)
for (j=h1;j<h2;j++) {
src=img->body+kk&~7;
dst=dc->body+kk1&~7;
if (leading_pixels) {
if (win_z_num>=*win_z_buf_ptr++) {
if (bit_shift)
*dst(I64 *)++=*dst(I64 *)&leading_pixel_mask|
(*src(U64 *)++>>bit_shift|
*src(I64 *)<<(64-bit_shift))&
~leading_pixel_mask&color_mask;
else
*dst(I64 *)++=*dst(I64 *)&leading_pixel_mask|
*src(I64 *)++&~leading_pixel_mask&color_mask;
} else {
src(I64 *)++;
dst(I64 *)++;
}
}
if (bit_shift)
for (i=0;i<whole_I64s;i++)
if (win_z_num>=*win_z_buf_ptr++)
*dst(I64 *)++=(*src(U64 *)++>>bit_shift|
*src(I64 *)<<(64-bit_shift))&color_mask;
else {
src(I64 *)++;
dst(I64 *)++;
}
else
for (i=0;i<whole_I64s;i++)
if (win_z_num>=*win_z_buf_ptr++)
*dst(I64 *)++=*src(I64 *)++&color_mask;
else {
src(I64 *)++;
dst(I64 *)++;
}
if (trailing_pixels && win_z_num>=*win_z_buf_ptr++) {
if (bit_shift)
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
(*src(U64 *)++>>bit_shift|
*src(I64 *)<<(64-bit_shift))&
~trailing_pixel_mask&color_mask;
else
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
*src(I64 *)++&~trailing_pixel_mask&color_mask;
}
kk +=img->width_internal;
kk1+=dc->width_internal;
if ((j+y)&7==7)
win_z_buf_ptr(U8 *)+=win_z_buf_line_inc;
else
win_z_buf_ptr(U8 *)-=win_z_buf_line_dec;
}
else
for (j=h2-h1;j;j--) {
src=img->body+kk&~7;
dst=dc->body+kk1&~7;
if (leading_pixels) {
if (bit_shift)
*dst(I64 *)++=*dst(I64 *)&leading_pixel_mask|
(*src(U64 *)++>>bit_shift|
*src(I64 *)<<(64-bit_shift))&
~leading_pixel_mask&color_mask;
else
*dst(I64 *)++=*dst(I64 *)&leading_pixel_mask|
*src(I64 *)++&~leading_pixel_mask&color_mask;
}
if (bit_shift)
for (i=0;i<whole_I64s;i++)
*dst(I64 *)++=(*src(U64 *)++>>bit_shift|
*src(I64 *)<<(64-bit_shift))&color_mask;
else
for (i=0;i<whole_I64s;i++)
*dst(I64 *)++=*src(I64 *)++&color_mask;
if (trailing_pixels) {
if (bit_shift)
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
(*src(U64 *)++>>bit_shift|
*src(I64 *)<<(64-bit_shift))&
~trailing_pixel_mask&color_mask;
else
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
*src(I64 *)++&~trailing_pixel_mask&color_mask;
}
kk +=img->width_internal;
kk1+=dc->width_internal;
}
} else {
k=h1*img->width_internal;
if (!(dc->flags & DCF_SCRN_BITMAP) || dc->flags&DCF_ON_TOP) {
for (j=h1;j<h2;j++) {
for (i=w1;i<w2;i++)
if (img->body[k+i])
GrPlot0(dc,x+i,y+j);
k+=img->width_internal;
}
} else {
win_z_num =win_task->win_z_num;
win_z_buf_ptr =gr.win_z_buf(U8 *)+
((h1+y)/FONT_HEIGHT*TEXT_COLS+(w1+x)/FONT_WIDTH)*sizeof(U16);
win_z_buf_line_dec=whole_I64s;
if (leading_pixels)
win_z_buf_line_dec++;
if (trailing_pixels)
win_z_buf_line_dec++;
win_z_buf_line_dec*=sizeof(U16);
win_z_buf_line_inc=TEXT_COLS*sizeof(U16)-win_z_buf_line_dec;
for (j=h1;j<h2;j++) {
if (win_z_num>=*win_z_buf_ptr++)
color_mask=TRUE;
else
color_mask=FALSE;
for (i=w1;i<w2;) {
if (color_mask)
if (img->body[k+i])
GrPlot0(dc,x+i,y+j);
if (!((++i+x) &7) && i<w2) {
if (win_z_num>=*win_z_buf_ptr++)
color_mask=TRUE;
else
color_mask=FALSE;
}
}
if ((j+y)&7==7)
win_z_buf_ptr(U8 *)+=win_z_buf_line_inc;
else
win_z_buf_ptr(U8 *)-=win_z_buf_line_dec;
k+=img->width_internal;
}
}
}
break;
case ROPB_EQU:
if (img->flags&DCF_NO_TRANSPARENTS) {
if (!(dc->flags & DCF_SCRN_BITMAP) || dc->flags&DCF_ON_TOP)
win_z_buf_ptr=NULL;
else {
win_z_num=win_task->win_z_num;
win_z_buf_ptr=gr.win_z_buf(U8 *)+
((h1+y)/FONT_HEIGHT*TEXT_COLS+(w1+x)/FONT_WIDTH)*sizeof(U16);
win_z_buf_line_dec=whole_I64s;
if (leading_pixels)
win_z_buf_line_dec++;
if (trailing_pixels)
win_z_buf_line_dec++;
win_z_buf_line_dec*=sizeof(U16);
win_z_buf_line_inc=TEXT_COLS*sizeof(U16)-win_z_buf_line_dec;
}
kk = h1 *img ->width_internal+w1;
kk1=(h1+y)*dc->width_internal+x+w1;
kk =(kk-bit_shift)&~7+bit_shift;
bit_shift*=8;
if (win_z_buf_ptr)
for (j=h1;j<h2;j++) {
src=img->body+kk&~7;
dst=dc->body+kk1&~7;
if (leading_pixels) {
if (win_z_num>=*win_z_buf_ptr++) {
if (bit_shift)
*dst(I64 *)++=*dst(I64 *)&leading_pixel_mask|
(*src(U64 *)++>>bit_shift|
*src(I64 *)<<(64-bit_shift))&~leading_pixel_mask;
else
*dst(I64 *)++=*dst(I64 *)&leading_pixel_mask|
*src(I64 *)++&~leading_pixel_mask;
} else {
src(I64 *)++;
dst(I64 *)++;
}
}
if (bit_shift)
for (i=0;i<whole_I64s;i++)
if (win_z_num>=*win_z_buf_ptr++)
*dst(I64 *)++=*src(U64 *)++>>bit_shift|
*src(I64 *)<<(64-bit_shift);
else {
src(I64 *)++;
dst(I64 *)++;
}
else
for (i=0;i<whole_I64s;i++)
if (win_z_num>=*win_z_buf_ptr++)
*dst(I64 *)++=*src(I64 *)++;
else {
src(I64 *)++;
dst(I64 *)++;
}
if (trailing_pixels && win_z_num>=*win_z_buf_ptr++) {
if (bit_shift)
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
(*src(U64 *)++>>bit_shift|
*src(I64 *)<<(64-bit_shift))&~trailing_pixel_mask;
else
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
*src(I64 *)++&~trailing_pixel_mask;
}
kk +=img->width_internal;
kk1+=dc->width_internal;
if ((j+y)&7==7)
win_z_buf_ptr(U8 *)+=win_z_buf_line_inc;
else
win_z_buf_ptr(U8 *)-=win_z_buf_line_dec;
}
else
for (j=h2-h1;j;j--) {
src=img->body+kk&~7;
dst=dc->body+kk1&~7;
if (leading_pixels) {
if (bit_shift)
*dst(I64 *)++=*dst(I64 *)&leading_pixel_mask|
(*src(U64 *)++>>bit_shift|
*src(I64 *)<<(64-bit_shift))&~leading_pixel_mask;
else
*dst(I64 *)++=*dst(I64 *)&leading_pixel_mask|
*src(I64 *)++&~leading_pixel_mask;
}
if (bit_shift)
for (i=0;i<whole_I64s;i++)
*dst(I64 *)++=*src(U64 *)++>>bit_shift|
*src(I64 *)<<(64-bit_shift);
else
for (i=0;i<whole_I64s;i++)
*dst(I64 *)++=*src(I64 *)++;
if (trailing_pixels) {
if (bit_shift)
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
(*src(U64 *)++>>bit_shift|
*src(I64 *)<<(64-bit_shift))&~trailing_pixel_mask;
else
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
*src(I64 *)++&~trailing_pixel_mask;
}
kk +=img->width_internal;
kk1+=dc->width_internal;
}
} else {
here1a:
k=h1*img->width_internal;
if (!(dc->flags & DCF_SCRN_BITMAP) || dc->flags&DCF_ON_TOP) {
for (j=h1;j<h2;j++) {
for (i=w1;i<w2;i++) {
c=img->body[k+i];
if (c!=TRANSPARENT) {
dc->color.c0.color=c;
GrPlot0(dc,x+i,y+j);
}
}
k+=img->width_internal;
}
} else {
win_z_num =win_task->win_z_num;
win_z_buf_ptr =gr.win_z_buf(U8 *)+
((h1+y)/FONT_HEIGHT*TEXT_COLS+(w1+x)/FONT_WIDTH)*sizeof(U16);
win_z_buf_line_dec=whole_I64s;
if (leading_pixels)
win_z_buf_line_dec++;
if (trailing_pixels)
win_z_buf_line_dec++;
win_z_buf_line_dec*=sizeof(U16);
win_z_buf_line_inc=TEXT_COLS*sizeof(U16)-win_z_buf_line_dec;
for (j=h1;j<h2;j++) {
if (win_z_num>=*win_z_buf_ptr++)
color_mask=TRUE;
else
color_mask=FALSE;
for (i=w1;i<w2;) {
if (color_mask) {
c=img->body[k+i];
if (c!=TRANSPARENT) {
dc->color.c0.color=c;
GrPlot0(dc,x+i,y+j);
}
}
if (!((++i+x) &7) && i<w2) {
if (win_z_num>=*win_z_buf_ptr++)
color_mask=TRUE;
else
color_mask=FALSE;
}
}
if ((j+y)&7==7)
win_z_buf_ptr(U8 *)+=win_z_buf_line_inc;
else
win_z_buf_ptr(U8 *)-=win_z_buf_line_dec;
k+=img->width_internal;
}
}
dc->color=color;
}
break;
case ROPB_XOR:
if (img->flags&DCF_NO_TRANSPARENTS) {
if (!(dc->flags & DCF_SCRN_BITMAP) || dc->flags&DCF_ON_TOP)
win_z_buf_ptr=NULL;
else {
win_z_num=win_task->win_z_num;
win_z_buf_ptr=gr.win_z_buf(U8 *)+
((h1+y)/FONT_HEIGHT*TEXT_COLS+(w1+x)/FONT_WIDTH)*sizeof(U16);
win_z_buf_line_dec=whole_I64s;
if (leading_pixels)
win_z_buf_line_dec++;
if (trailing_pixels)
win_z_buf_line_dec++;
win_z_buf_line_dec*=sizeof(U16);
win_z_buf_line_inc=TEXT_COLS*sizeof(U16)-win_z_buf_line_dec;
}
kk = h1 *img ->width_internal +w1;
kk1=(h1+y)*dc->width_internal+x+w1;
kk =(kk-bit_shift)&~7+bit_shift;
bit_shift*=8;
if (win_z_buf_ptr)
for (j=h1;j<h2;j++) {
src=img->body+kk&~7;
dst=dc->body+kk1&~7;
if (leading_pixels) {
if (win_z_num>=*win_z_buf_ptr++) {
if (bit_shift)
*dst(I64 *)++=*dst(I64 *)&leading_pixel_mask|
(*dst(I64 *)^(*src(U64 *)++>>bit_shift|
*src(I64 *)<<(64-bit_shift)))&~leading_pixel_mask;
else
*dst(I64 *)++=*dst(I64 *)&leading_pixel_mask|
(*dst(I64 *)^*src(I64 *)++)&~leading_pixel_mask;
} else {
src(I64 *)++;
dst(I64 *)++;
}
}
if (bit_shift)
for (i=0;i<whole_I64s;i++)
if (win_z_num>=*win_z_buf_ptr++)
*dst(I64 *)++^=*src(U64 *)++>>bit_shift|
*src(I64 *)<<(64-bit_shift);
else {
src(I64 *)++;
dst(I64 *)++;
}
else
for (i=0;i<whole_I64s;i++)
if (win_z_num>=*win_z_buf_ptr++)
*dst(I64 *)++^=*src(I64 *)++;
else {
src(I64 *)++;
dst(I64 *)++;
}
if (trailing_pixels && win_z_num>=*win_z_buf_ptr++) {
if (bit_shift)
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
(*dst(I64 *)^(*src(U64 *)++>>bit_shift|
*src(I64 *)<<(64-bit_shift)))&~trailing_pixel_mask;
else
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
(*dst(I64 *)^*src(I64 *)++)&~trailing_pixel_mask;
}
kk +=img->width_internal;
kk1+=dc->width_internal;
if ((j+y)&7==7)
win_z_buf_ptr(U8 *)+=win_z_buf_line_inc;
else
win_z_buf_ptr(U8 *)-=win_z_buf_line_dec;
}
else
for (j=h2-h1;j;j--) {
src=img->body+kk&~7;
dst=dc->body+kk1&~7;
if (leading_pixels) {
if (bit_shift)
*dst(I64 *)++=*dst(I64 *)&leading_pixel_mask|
(*dst(I64 *)^(*src(U64 *)++>>bit_shift|
*src(I64 *)<<(64-bit_shift)))&~leading_pixel_mask;
else
*dst(I64 *)++=*dst(I64 *)&leading_pixel_mask|
(*dst(I64 *)^*src(I64 *)++)&~leading_pixel_mask;
}
if (bit_shift)
for (i=0;i<whole_I64s;i++)
*dst(I64 *)++^=*src(U64 *)++>>bit_shift|
*src(I64 *)<<(64-bit_shift);
else
for (i=0;i<whole_I64s;i++)
*dst(I64 *)++^=*src(I64 *)++;
if (trailing_pixels) {
if (bit_shift)
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
(*dst(I64 *)^(*src(U64 *)++>>bit_shift|
*src(I64 *)<<(64-bit_shift)))&~trailing_pixel_mask;
else
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
(*dst(I64 *)^*src(I64 *)++)&~trailing_pixel_mask;
}
kk +=img->width_internal;
kk1+=dc->width_internal;
}
} else
goto here1a;
break;
}
dc->depth_buf=db;
dc->color=old_color;
return 1;
} else
return 0;
}
#help_index "Graphics/Device Contexts"
U8 *GrBitMap4ToBitMap8(U8 *dst,U8 *src,I64 src_size,I64 bkcolor)
{
I64 c,k,i=src_size*2,i1=i>>3;
for (k=0;k<i;k++) {
c=0;
if (Bt(src ,k)) c|=1;
if (Bt(src+i1 ,k)) c|=2;
if (Bt(src+i1*2,k)) c|=4;
if (Bt(src+i1*3,k)) c|=8;
if (c==bkcolor) c=TRANSPARENT;
*dst++=c;
}
return dst;
}
U8 *GrBitMap1ToBitMap8(U8 *dst,U8 *src,I64 src_size,I64 bkcolor)
{
I64 c,k,i=src_size*8;
for (k=0;k<i;k++) {
c=0;
if (Bt(src,k)) c=COLOR_MONO;
if (c==bkcolor) c=TRANSPARENT;
*dst++=c;
}
return dst;
}
public CDC *DCExt(CDC *dc=gr.dc,I64 x1,I64 y1,I64 x2,I64 y2,
CTask *task=NULL)
{//Extract new device context rect from device context.
CDC *res;
CTask *win_task;
if (x1>x2) SwapI64(&x1,&x2);
if (y1>y2) SwapI64(&y1,&y2);
if (dc->flags & DCF_SCRN_BITMAP) {
win_task=dc->win_task;
x1+=win_task->pix_left+win_task->scroll_x;
y1+=win_task->pix_top +win_task->scroll_y;
x2+=win_task->pix_left+win_task->scroll_x;
y2+=win_task->pix_top +win_task->scroll_y;
}
res=DCNew(x2-x1+1,y2-y1+1,task);
DCFill(res);
GrBlot(res,-x1,-y1,dc);
return res;
}
public CDC *DCDiff(CDC *base,CDC *update)
{//Trim to win of what has chged.
I64 i,x1=0,y1=0,x2=update->width-1,y2=update->height-1; //inclusive
U32 *ptr_base,*ptr_update;
CDC *res;
ptr_base =base->body;
ptr_update=update->body;
while (y1<=y2) {
i=update->width>>2;
while (i--)
if (*ptr_base++!=*ptr_update++)
goto df_y2;
i=update->width&3;
while (i--)
if (*ptr_base(U8 *)++!=*ptr_update(U8 *)++)
goto df_y2;
y1++;
}
return NULL;
df_y2:
ptr_base =base->body +base->width_internal *base->height;
ptr_update=update->body+update->width_internal*update->height;
while (y1<y2) {
i=update->width>>2;
while (i--)
if (*--ptr_base!=*--ptr_update)
goto df_x1;
i=update->width&3;
while (i--)
if (*--ptr_base(U8 *)!=*--ptr_update(U8 *))
goto df_x1;
y2--;
}
df_x1:
while (x1<x2) {
for (i=y1;i<=y2;i++)
if (GrPeek0(base,x1,i)!=GrPeek0(update,x1,i))
goto df_x2;
x1++;
}
df_x2:
while (x1<x2) {
for (i=y1;i<=y2;i++)
if (GrPeek0(base,x2,i)!=GrPeek0(update,x2,i))
goto df_done;
x2--;
}
df_done:
res=DCExt(update,x1,y1,x2,y2);
res->x0=x1;
res->y0=y1;
return res;
}
#help_index "Graphics/Char;Char/Graphics"
public I64 GrPutChar(CDC *dc=gr.dc,I64 x,I64 y,U8 ch)
{//2D. Clipping but not transformation.
U8 reg *src,reg *dst,*font_ptr;
I64 i,m,leading_pixels,trailing_pixels,leading_pixel_mask,trailing_pixel_mask,
j,k1,kk1,w1,h1,w2,h2,reg bit_shift,reg color_mask,dist;
CColorROPU32 color,c;
CTask *win_task;
if (dc->flags & DCF_SCRN_BITMAP) {
win_task=dc->win_task;
x+=win_task->scroll_x;
y+=win_task->scroll_y;
}
if (x<0)
w1=-x;
else
w1=0;
if (y<0)
h1=-y;
else
h1=0;
w2=FONT_WIDTH;
h2=FONT_HEIGHT;
if (dc->flags & DCF_SCRN_BITMAP) {
x+=win_task->pix_left;
y+=win_task->pix_top;
}
if (dc->flags & DCF_LOCATE_NEAREST) {
dist=DistSqrI64(x+w2>>1,y+h2>>1,dc->cur_x,dc->cur_y);
if (dist<=dc->nearest_dist)
dc->nearest_dist=dist;
}
if (dc->flags & DCF_SCRN_BITMAP) {
if (x+w1<0) w1=-x;
if (x+w2>win_task->pix_right+1)
w2=win_task->pix_right+1-x;
if (y+h1<0) h1=-y;
if (y+h2>win_task->pix_bottom+1)
h2=win_task->pix_bottom+1-y;
}
if (x+w2>dc->width)
w2=dc->width-x;
if (y+h2>dc->height)
h2=dc->height-y;
if (w1<w2<=FONT_WIDTH && h1<h2<=FONT_HEIGHT) {
if (dc->flags & DCF_RECORD_EXTENTS) {
if (x+w1 <dc->min_x) dc->min_x=x+w1;
if (x+w2-1>dc->max_x) dc->max_x=x+w2-1;
if (y+h1 <dc->min_y) dc->min_y=y+h1;
if (y+h2-1>dc->max_y) dc->max_y=y+h2-1;
}
if (dc->flags & DCF_DONT_DRAW)
return 1;
color=dc->color;
leading_pixels=-(w1+x)&7;
if (!leading_pixels) leading_pixels=8;
leading_pixel_mask=gr.to_8_bits[0xFF>>leading_pixels];
bit_shift=-x&7;
trailing_pixels=(x+w2)&7;
trailing_pixel_mask=gr.to_8_bits[0xFF<<trailing_pixels&0xFF];
if (leading_pixels+trailing_pixels>w2-w1) {
leading_pixel_mask|=trailing_pixel_mask;
trailing_pixels=0;
}
font_ptr=&text.font(U8 *)[FONT_HEIGHT*ch+h1];
if (color.c0.rop==ROPB_COLLISION) {
m=w1&(FONT_WIDTH-1);
#assert FONT_WIDTH==8
color =dc->bkcolor.c0.color;
for (i=w1;i<w2;i++,m++) {
k1=(h1+y)*dc->width_internal+x;
src=font_ptr;
for (j=h2-h1;j;j--) {
c=dc->body[k1+i];
if (c!=TRANSPARENT && c!=color && Bt(src,m))
dc->collision_cnt++;
k1+=dc->width_internal;
src++;
}
}
} else {
color_mask=gr.to_8_colors[color.c0.color];
k1=x+w1;
kk1=(h1+y)*dc->width_internal+k1;
if (!(dc->flags & DCF_SCRN_BITMAP) || dc->flags&DCF_ON_TOP) {
if (leading_pixels) {
dst=dc->body+kk1&~7;
src=font_ptr;
if (bit_shift)
src--;
switch [color.c0.rop] {
case ROPB_EQU:
case ROPB_MONO:
for (j=h2-h1;j;j--) {
m=gr.to_8_bits[*src(U16 *)>>bit_shift&0xFF];
*dst(I64 *)=*dst(I64 *)&leading_pixel_mask|
(color_mask&m|*dst(I64 *)&~m)&~leading_pixel_mask;
src++;
dst+=dc->width_internal;
}
break;
case ROPB_XOR:
if (color_mask) {
for (j=h2-h1;j;j--) {
*dst(I64 *)=*dst(I64 *)&leading_pixel_mask|
(*dst(I64 *)^gr.to_8_bits[*src(U16 *)>>bit_shift&0xFF])&
~leading_pixel_mask;
src++;
dst+=dc->width_internal;
}
}
break;
}
kk1+=8;
}
if (trailing_pixels) {
dst=dc->body+kk1&~7;
src=font_ptr+1;
if (bit_shift)
src--;
switch [color.c0.rop] {
case ROPB_EQU:
case ROPB_MONO:
for (j=h2-h1;j;j--) {
m=gr.to_8_bits[*src(U16 *)>>bit_shift&0xFF];
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
(color_mask&m|*dst(I64 *)&~m)&~trailing_pixel_mask;
src++;
dst+=dc->width_internal;
}
break;
case ROPB_XOR:
if (color_mask)
for (j=h2-h1;j;j--) {
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
(*dst(I64 *)^gr.to_8_bits[*src(U16 *)>>bit_shift&0xFF])&
~trailing_pixel_mask;
src++;
dst+=dc->width_internal;
}
break;
}
}
} else {
if (leading_pixels) {
dst=dc->body+kk1&~7;
src=font_ptr;
if (bit_shift)
src--;
switch [color.c0.rop] {
case ROPB_EQU:
case ROPB_MONO:
for (j=h1;j<h2;j++) {
if (!IsPixCovered0(win_task,k1,y+j)) {
m=gr.to_8_bits[*src(U16 *)>>bit_shift&0xFF];
*dst(I64 *)=*dst(I64 *)&leading_pixel_mask|
(color_mask&m|*dst(I64 *)&~m)&~leading_pixel_mask;
}
src++;
dst+=dc->width_internal;
}
break;
case ROPB_XOR:
if (color_mask)
for (j=h1;j<h2;j++) {
if (!IsPixCovered0(win_task,k1,y+j))
*dst(I64 *)=*dst(I64 *)&leading_pixel_mask|
(*dst(I64 *)^gr.to_8_bits
[*src(U16 *)>>bit_shift&0xFF])&
~leading_pixel_mask;
src++;
dst+=dc->width_internal;
}
break;
}
k1+=8;
kk1+=8;
}
if (trailing_pixels) {
dst=dc->body+kk1&~7;
src=font_ptr+1;
if (bit_shift)
src--;
switch [color.c0.rop] {
case ROPB_EQU:
case ROPB_MONO:
for (j=h1;j<h2;j++) {
if (!IsPixCovered0(win_task,k1,y+j)) {
m=gr.to_8_bits[*src(U16 *)>>bit_shift&0xFF];
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
(color_mask&m|*dst(I64 *)&~m)&~trailing_pixel_mask;
}
src++;
dst+=dc->width_internal;
}
break;
case ROPB_XOR:
if (color_mask)
for (j=h1;j<h2;j++) {
if (!IsPixCovered0(win_task,k1,y+j))
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
(*dst(I64 *)^gr.to_8_bits
[*src(U16 *)>>bit_shift&0xFF])&
~trailing_pixel_mask;
src++;
dst+=dc->width_internal;
}
break;
}
}
}
}
return 1;
} else
return 0;
}
I64 GrPutS(CDC *dc=gr.dc,I64 x,I64 y,U8 *_s)
{//Use $LK,"GrPrint",A="MN:GrPrint"$()
I64 x0,sx=0,sy=0,res;
if (!_s) return 0;
x0=x;
res=0;
while (*_s) {
if (*_s=='\n') {
x=x0;
y+=FONT_HEIGHT;
_s++;
} else if (*_s=='\t') {
x=x0+CeilU64(x-x0+FONT_WIDTH,8*FONT_WIDTH);
_s++;
} else if (*_s(U32 *)=='$$SY,') {
if (_s[4]=='-') {
_s++;
sy='0'-_s[4];
} else
sy=_s[4]-'0';
_s+=6;
} else if (*_s(U32 *)=='$$SX,') {
if (_s[4]=='-') {
_s++;
sx='0'-_s[4];
} else
sx=_s[4]-'0';
_s+=6;
} else {
res+=GrPutChar(dc,x+sx,y+sy,*_s);
x+=FONT_WIDTH;
_s++;
}
}
return res;
}
I64 GrVPutS(CDC *dc=gr.dc,I64 x,I64 y,U8 *_s)
{//Vertical Text. Use $LK,"GrVPrint",A="MN:GrVPrint"$()
I64 y0,sx=0,sy=0,res;
U8 buf[2];
if (!_s) return 0;
y0=y;
res=0;
buf[1]=0;
while (*_s) {
if (*_s=='\n') {
y=y0;
x+=FONT_WIDTH;
_s++;
} else if (*_s=='\t') {
y=y0+CeilU64(y-y0+FONT_HEIGHT,8*FONT_HEIGHT);
_s++;
} else if (*_s(U32 *)=='$$SY,') {
if (_s[4]=='-') {
_s++;
sx='0'-_s[4];
} else
sx=_s[4]-'0';
_s+=6;
} else if (*_s(U32 *)=='$$SX,') {
if (_s[4]=='-') {
_s++;
sy='0'-_s[4];
} else
sy=_s[4]-'0';
_s+=6;
} else {
*buf=*_s++;
res+=GrPutS(dc,x,y,buf);
y+=FONT_HEIGHT;
}
}
return res;
}
public I64 GrPrint(CDC *dc=gr.dc,I64 x,I64 y,U8 *fmt,...)
{//2D. Clipping but not transformation.
I64 res;
U8 *buf=StrPrintJoin(NULL,fmt,argc,argv);
res=GrPutS(dc,x,y,buf);
Free(buf);
return res;
}
public I64 GrVPrint(CDC *dc=gr.dc,I64 x,I64 y,U8 *fmt,...)
{//2D. Vertical text. Clipping but not transformation.
I64 res;
U8 *buf=StrPrintJoin(NULL,fmt,argc,argv);
res=GrVPutS(dc,x,y,buf);
Free(buf);
return res;
}
#help_index "Graphics"
public I64 GrRect(CDC *dc=gr.dc,I64 x,I64 y,I64 w,I64 h)
{//2D. Width Height. Clipping but not transformation.
//Returns cnt of pixs changed.
I64 i,res=0,j,k1,kk1,w1,h1,w2,h2,dist,
leading_pixels,original_leading_pixels,whole_I64s,
trailing_pixels,leading_pixel_mask,trailing_pixel_mask,
win_z_buf_line_inc,win_z_buf_line_dec,win_z_num,color_mask;
U8 reg *dst;
U16 reg *win_z_buf_ptr;
CColorROPU32 color,c,dither_colors;
Bool dither,probability_dither;
CTask *win_task;
if (dc->flags & DCF_SCRN_BITMAP) {
win_task=dc->win_task;
x+=win_task->scroll_x;
y+=win_task->scroll_y;
}
if (x<0)
w1=-x;
else
w1=0;
if (y<0)
h1=-y;
else
h1=0;
w2=w;
h2=h;
if (dc->flags & DCF_SCRN_BITMAP) {
x+=win_task->pix_left;
y+=win_task->pix_top;
}
if (dc->flags & DCF_LOCATE_NEAREST) {//TODO:Untested
if (x<=dc->cur_x<=x+w && y<=dc->cur_y<=y+h)
dist=0;
else
dist=DistSqrI64(x+w>>1,y+h>>1,dc->cur_x,dc->cur_y);
if (dist<=dc->nearest_dist)
dc->nearest_dist=dist;
}
if (dc->flags & DCF_SCRN_BITMAP) {
if (x+w1<0) w1=-x;
if (x+w2>win_task->pix_right+1)
w2=win_task->pix_right+1-x;
if (y+h1<0) h1=-y;
if (y+h2>win_task->pix_bottom+1)
h2=win_task->pix_bottom+1-y;
}
if (x+w2>dc->width)
w2=dc->width-x;
if (y+h2>dc->height)
h2=dc->height-y;
if (w1<w2<=w && h1<h2<=h) {
if (dc->flags & DCF_RECORD_EXTENTS) {
if (x+w1 <dc->min_x) dc->min_x=x+w1;
if (x+w2-1>dc->max_x) dc->max_x=x+w2-1;
if (y+h1 <dc->min_y) dc->min_y=y+h1;
if (y+h2-1>dc->max_y) dc->max_y=y+h2-1;
}
if (dc->flags & DCF_DONT_DRAW)
return TRUE;
color=dc->color;
if (color.c1.rop&(ROPBF_DITHER|ROPBF_PROBABILITY_DITHER)) {
dither=TRUE;
if (color.c1.rop&ROPBF_PROBABILITY_DITHER) {
probability_dither=TRUE;
color.c1.rop=color.c0.rop;
dither_colors=color;
} else {
probability_dither=FALSE;
color.c1.rop=color.c0.rop;
}
} else
dither=FALSE;
original_leading_pixels=leading_pixels=-(w1+x)&7;
leading_pixel_mask=gr.to_8_bits[0xFF>>leading_pixels];
whole_I64s=(w2-w1-leading_pixels)>>3;
if (whole_I64s<0) whole_I64s=0;
trailing_pixels=(x+w2)&7;
trailing_pixel_mask=gr.to_8_bits[0xFF<<trailing_pixels&0xFF];
if (leading_pixels+trailing_pixels>w2-w1) {
leading_pixel_mask|=trailing_pixel_mask;
leading_pixels=w2-w1; //Correct so it's right for res.
trailing_pixels=0;
}
if (color.c0.rop==ROPB_COLLISION) {//TODO: Might want to check win_z_buf
color =dc->bkcolor.c0.color;
k1=(h1+y)*dc->width_internal+x;
res=-dc->collision_cnt;
for (j=h2-h1;j;j--) {
for (i=w1;i<w2;i++) {
c=dc->body[k1+i];
if (c!=TRANSPARENT && c!=color)
dc->collision_cnt++;
}
k1+=dc->width_internal;
}
res+=dc->collision_cnt;
} else {
if (!(dc->flags & DCF_SCRN_BITMAP) || dc->flags&DCF_ON_TOP)
win_z_buf_ptr=NULL;
else {
win_z_num=win_task->win_z_num;
win_z_buf_ptr=gr.win_z_buf(U8 *)+((h1+y)/FONT_HEIGHT*TEXT_COLS+
(w1+x)/FONT_WIDTH)*sizeof(U16);
win_z_buf_line_dec=whole_I64s;
if (leading_pixels)
win_z_buf_line_dec++;
if (trailing_pixels)
win_z_buf_line_dec++;
win_z_buf_line_dec*=sizeof(U16);
win_z_buf_line_inc=TEXT_COLS*sizeof(U16)-win_z_buf_line_dec;
}
kk1=(h1+y)*dc->width_internal+x+w1;
if (dither) {
if (probability_dither) {
if (RandU16<dc->dither_probability_u16)
color.c0=dither_colors.c1;
else
color.c0=dither_colors.c0;
switch [color.c0.rop] {
case ROPB_EQU:
case ROPB_MONO:
if (win_z_buf_ptr) {
res=0;
for (j=h1;j<h2;j++) {
color_mask=gr.to_8_colors[color.c0.color];
dst=dc->body+kk1&~7;
if (leading_pixels) {
if (win_z_num>=*win_z_buf_ptr++) {
*dst(I64 *)=*dst(I64 *)&leading_pixel_mask|
color_mask&~leading_pixel_mask;
res+=leading_pixels;
}
dst(I64 *)++;
}
for (i=0;i<whole_I64s;i++,dst(I64 *)++)
if (win_z_num>=*win_z_buf_ptr++) {
*dst(I64 *)=color_mask;
res+=8;
}
if (trailing_pixels && win_z_num>=*win_z_buf_ptr++) {
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
color_mask&~trailing_pixel_mask;
res+=trailing_pixels;
}
if ((j+y)&7==7)
win_z_buf_ptr(U8 *)+=win_z_buf_line_inc;
else
win_z_buf_ptr(U8 *)-=win_z_buf_line_dec;
kk1+=dc->width_internal;
if (RandU16<dc->dither_probability_u16)
color.c0=dither_colors.c1;
else
color.c0=dither_colors.c0;
}
} else {
for (j=h2-h1;j;j--) {
color_mask=gr.to_8_colors[color.c0.color];
dst=dc->body+kk1&~7;
if (leading_pixels)
*dst(I64 *)++=*dst(I64 *)&leading_pixel_mask|
color_mask&~leading_pixel_mask;
for (i=0;i<whole_I64s;i++,dst(I64 *)++)
*dst(I64 *)=color_mask;
if (trailing_pixels)
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
color_mask&~trailing_pixel_mask;
kk1+=dc->width_internal;
if (RandU16<dc->dither_probability_u16)
color.c0=dither_colors.c1;
else
color.c0=dither_colors.c0;
}
res=(h2-h1)*(w2-w1);
}
break;
case ROPB_XOR:
if (win_z_buf_ptr) {
res=0;
for (j=h1;j<h2;j++) {
color_mask=gr.to_8_colors[color.c0.color];
dst=dc->body+kk1&~7;
if (leading_pixels) {
if (win_z_num>=*win_z_buf_ptr++) {
*dst(I64 *)=*dst(I64 *)&leading_pixel_mask|
*dst(I64 *)^color_mask&~leading_pixel_mask;
res+=leading_pixels;
}
dst(I64 *)++;
}
for (i=0;i<whole_I64s;i++,dst(I64 *)++)
if (win_z_num>=*win_z_buf_ptr++) {
*dst(I64 *)^=color_mask;
res+=8;
}
if (trailing_pixels && win_z_num>=*win_z_buf_ptr++) {
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
*dst(I64 *)^color_mask&~trailing_pixel_mask;
res+=trailing_pixels;
}
if ((j+y)&7==7)
win_z_buf_ptr(U8 *)+=win_z_buf_line_inc;
else
win_z_buf_ptr(U8 *)-=win_z_buf_line_dec;
kk1+=dc->width_internal;
if (RandU16<dc->dither_probability_u16)
color.c0=dither_colors.c1;
else
color.c0=dither_colors.c0;
}
} else {
for (j=h2-h1;j;j--) {
color_mask=gr.to_8_colors[color.c0.color];
dst=dc->body+kk1&~7;
if (leading_pixels)
*dst(I64 *)++=*dst(I64 *)&leading_pixel_mask|
*dst(I64 *)^color_mask&~leading_pixel_mask;
for (i=0;i<whole_I64s;i++,dst(I64 *)++)
*dst(I64 *)^=color_mask;
if (trailing_pixels)
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
*dst(I64 *)^color_mask&~trailing_pixel_mask;
kk1+=dc->width_internal;
if (RandU16<dc->dither_probability_u16)
color.c0=dither_colors.c1;
else
color.c0=dither_colors.c0;
}
res=(h2-h1)*(w2-w1);
}
break;
}
} else {
if (((x+w1-original_leading_pixels)^(y+h1))&1)
SwapU16(&color.c0,&color.c1);
switch [color.c0.rop] {
case ROPB_EQU:
case ROPB_MONO:
if (win_z_buf_ptr) {
res=0;
for (j=h1;j<h2;j++) {
color_mask=gr.to_8_bits[0x55]&gr.to_8_colors[color.c0.color]|
gr.to_8_bits[0xAA]&gr.to_8_colors[color.c1.color];
dst=dc->body+kk1&~7;
if (leading_pixels) {
if (win_z_num>=*win_z_buf_ptr++) {
*dst(I64 *)=*dst(I64 *)&leading_pixel_mask|
color_mask&~leading_pixel_mask;
res+=leading_pixels;
}
dst(I64 *)++;
}
for (i=0;i<whole_I64s;i++,dst(I64 *)++)
if (win_z_num>=*win_z_buf_ptr++) {
*dst(I64 *)=color_mask;
res+=8;
}
if (trailing_pixels && win_z_num>=*win_z_buf_ptr++) {
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
color_mask&~trailing_pixel_mask;
res+=trailing_pixels;
}
if ((j+y)&7==7)
win_z_buf_ptr(U8 *)+=win_z_buf_line_inc;
else
win_z_buf_ptr(U8 *)-=win_z_buf_line_dec;
kk1+=dc->width_internal;
SwapU16(&color.c0,&color.c1);
}
} else {
for (j=h2-h1;j;j--) {
color_mask=gr.to_8_bits[0x55]&gr.to_8_colors[color.c0.color]|
gr.to_8_bits[0xAA]&gr.to_8_colors[color.c1.color];
dst=dc->body+kk1&~7;
if (leading_pixels)
*dst(I64 *)++=*dst(I64 *)&leading_pixel_mask|
color_mask&~leading_pixel_mask;
for (i=0;i<whole_I64s;i++,dst(I64 *)++)
*dst(I64 *)=color_mask;
if (trailing_pixels)
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
color_mask&~trailing_pixel_mask;
kk1+=dc->width_internal;
SwapU16(&color.c0,&color.c1);
}
res=(h2-h1)*(w2-w1);
}
break;
case ROPB_XOR:
if (win_z_buf_ptr) {
res=0;
for (j=h1;j<h2;j++) {
color_mask=gr.to_8_bits[0x55]&gr.to_8_colors[color.c0.color]|
gr.to_8_bits[0xAA]&gr.to_8_colors[color.c1.color];
dst=dc->body+kk1&~7;
if (leading_pixels) {
if (win_z_num>=*win_z_buf_ptr++) {
*dst(I64 *)=*dst(I64 *)&leading_pixel_mask|
*dst(I64 *)^color_mask&~leading_pixel_mask;
res+=leading_pixels;
}
dst(I64 *)++;
}
for (i=0;i<whole_I64s;i++,dst(I64 *)++)
if (win_z_num>=*win_z_buf_ptr++) {
*dst(I64 *)^=color_mask;
res+=8;
}
if (trailing_pixels && win_z_num>=*win_z_buf_ptr++) {
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
*dst(I64 *)^color_mask&~trailing_pixel_mask;
res+=trailing_pixels;
}
if ((j+y)&7==7)
win_z_buf_ptr(U8 *)+=win_z_buf_line_inc;
else
win_z_buf_ptr(U8 *)-=win_z_buf_line_dec;
kk1+=dc->width_internal;
SwapU16(&color.c0,&color.c1);
}
} else {
for (j=h2-h1;j;j--) {
color_mask=gr.to_8_bits[0x55]&gr.to_8_colors[color.c0.color]|
gr.to_8_bits[0xAA]&gr.to_8_colors[color.c1.color];
dst=dc->body+kk1&~7;
if (leading_pixels)
*dst(I64 *)++=*dst(I64 *)&leading_pixel_mask|
*dst(I64 *)^color_mask&~leading_pixel_mask;
for (i=0;i<whole_I64s;i++,dst(I64 *)++)
*dst(I64 *)^=color_mask;
if (trailing_pixels)
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
*dst(I64 *)^color_mask&~trailing_pixel_mask;
kk1+=dc->width_internal;
SwapU16(&color.c0,&color.c1);
}
res=(h2-h1)*(w2-w1);
}
break;
}
}
} else {
color_mask=gr.to_8_colors[color.c0.color];
switch [color.c0.rop] {
case ROPB_EQU:
case ROPB_MONO:
if (win_z_buf_ptr) {
res=0;
for (j=h1;j<h2;j++) {
dst=dc->body+kk1&~7;
if (leading_pixels) {
if (win_z_num>=*win_z_buf_ptr++) {
*dst(I64 *)=*dst(I64 *)&leading_pixel_mask|
color_mask&~leading_pixel_mask;
res+=leading_pixels;
}
dst(I64 *)++;
}
for (i=0;i<whole_I64s;i++,dst(I64 *)++)
if (win_z_num>=*win_z_buf_ptr++) {
*dst(I64 *)=color_mask;
res+=8;
}
if (trailing_pixels && win_z_num>=*win_z_buf_ptr++) {
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
color_mask&~trailing_pixel_mask;
res+=trailing_pixels;
}
if ((j+y)&7==7)
win_z_buf_ptr(U8 *)+=win_z_buf_line_inc;
else
win_z_buf_ptr(U8 *)-=win_z_buf_line_dec;
kk1+=dc->width_internal;
}
} else {
for (j=h2-h1;j;j--) {
dst(I64 *)=dc->body+kk1&~7;
if (leading_pixels)
*dst(I64 *)++=*dst(I64 *)&leading_pixel_mask|
color_mask&~leading_pixel_mask;
for (i=0;i<whole_I64s;i++,dst(I64 *)++)
*dst(I64 *)=color_mask;
if (trailing_pixels)
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
color_mask&~trailing_pixel_mask;
kk1+=dc->width_internal;
}
res=(h2-h1)*(w2-w1);
}
break;
case ROPB_XOR:
if (win_z_buf_ptr) {
res=0;
for (j=h1;j<h2;j++) {
dst=dc->body+kk1&~7;
if (leading_pixels) {
if (win_z_num>=*win_z_buf_ptr++) {
*dst(I64 *)=*dst(I64 *)&leading_pixel_mask|
*dst(I64 *)^color_mask&~leading_pixel_mask;
res+=leading_pixels;
}
dst(I64 *)++;
}
for (i=0;i<whole_I64s;i++,dst(I64 *)++)
if (win_z_num>=*win_z_buf_ptr++) {
*dst(I64 *)^=color_mask;
res+=8;
}
if (trailing_pixels && win_z_num>=*win_z_buf_ptr++) {
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
*dst(I64 *)^color_mask&~trailing_pixel_mask;
res+=trailing_pixels;
}
if ((j+y)&7==7)
win_z_buf_ptr(U8 *)+=win_z_buf_line_inc;
else
win_z_buf_ptr(U8 *)-=win_z_buf_line_dec;
kk1+=dc->width_internal;
}
} else {
for (j=h2-h1;j;j--) {
dst=dc->body+kk1&~7;
if (leading_pixels)
*dst(I64 *)++=*dst(I64 *)&leading_pixel_mask|
*dst(I64 *)^color_mask&~leading_pixel_mask;
for (i=0;i<whole_I64s;i++,dst(I64 *)++)
*dst(I64 *)^=color_mask;
if (trailing_pixels)
*dst(I64 *)=*dst(I64 *)&trailing_pixel_mask|
*dst(I64 *)^color_mask&~trailing_pixel_mask;
kk1+=dc->width_internal;
}
res=(h2-h1)*(w2-w1);
}
break;
}
}
}
}
return res;
}
I64 GrRayLenMinus(CDC *dc,I64 x,I64 y)
{
//Returns cnt of pixs changed
I64 res=0,c,x3,y3,d;
U8 *dst,*dst2;
Bool not_color=ToBool(dc->flags&DCF_FILL_NOT_COLOR);
CTask *win_task;
if (dc->flags & DCF_SCRN_BITMAP) {
win_task=dc->win_task;
x+=win_task->scroll_x;
y+=win_task->scroll_y;
}
x3=x;
y3=y;
if (x3<0 || y3<0)
goto gr_done;
if (dc->flags & DCF_SCRN_BITMAP) {
x3+=win_task->pix_left;
y3+=win_task->pix_top;
if (!(0<=x3<=win_task->pix_right) || !(0<=y3<=win_task->pix_bottom) ||
!(dc->flags&DCF_ON_TOP) && IsPixCovered0(win_task,x3,y3))
goto gr_done;
}
if (x3>=dc->width || y3>=dc->height)
goto gr_done;
d=y3*dc->width_internal;
dst2=dc->body+d;
while (TRUE) {
x3=x;
if (x3&(FONT_WIDTH-1)==FONT_WIDTH-1) {
if (dc->flags & DCF_SCRN_BITMAP) {
if (x3<0) break;
x3+=win_task->pix_left;
if (!(0<=x3<=win_task->pix_right) || x3>=dc->width ||
!(dc->flags&DCF_ON_TOP) && IsPixCovered0(win_task,x3,y3))
break;
} else
if (!(0<=x3<dc->width))
break;
} else if (dc->flags & DCF_SCRN_BITMAP)
x3+=win_task->pix_left;
dst=dst2+x3;
c=*dst;
if (not_color) {
if (c!=dc->color2) {
res++;
x--;
} else
break;
} else {
if (c==dc->color2) {
res++;
x--;
} else
break;
}
}
return res;
gr_done:
return 0;
}
I64 GrRayLen(CDC *dc,I64 *x1,I64 y,I64 z=0,I32 *db=NULL)
{
//Returns cnt of pixs changed
I64 res=0,d,x=*x1,x2,x3,y3,dist;
Bool plot,dither,probability_dither,
not_color=ToBool(dc->flags&DCF_FILL_NOT_COLOR);
U8 *dst,*dst2;
CColorROPU32 c,c2,color=dc->color,bkcolor=dc->bkcolor;
I32 *db2;
CTask *win_task;
if (dc->flags & DCF_SCRN_BITMAP) {
win_task=dc->win_task;
x+=win_task->scroll_x;
y+=win_task->scroll_y;
z+=win_task->scroll_z;
}
x2=x;
x3=x;
y3=y;
if (x3<0 || y3<0)
goto gr_done;
if (dc->flags & DCF_SCRN_BITMAP) {
x3+=win_task->pix_left;
y3+=win_task->pix_top;
if (!(0<=x3<=win_task->pix_right) || !(0<=y3<=win_task->pix_bottom) ||
!(dc->flags&DCF_ON_TOP) && IsPixCovered0(win_task,x3,y3))
goto gr_done;
}
if (x3>=dc->width || y3>=dc->height)
goto gr_done;
d=dc->width_internal*y3;
if (db) db+=d;
color=dc->color;
if (color.c1.rop&(ROPBF_DITHER|ROPBF_PROBABILITY_DITHER)) {
dither=TRUE;
if (color.c1.rop&ROPBF_PROBABILITY_DITHER) {
probability_dither=TRUE;
color.c1.rop=color.c0.rop;
} else {
probability_dither=FALSE;
color.c1.rop=color.c0.rop;
}
} else
dither=FALSE;
dst2=dc->body+d;
while (TRUE) {
x3=x;
if (!(x3&(FONT_WIDTH-1))) {
if (dc->flags & DCF_SCRN_BITMAP) {
if (x3<0) break;
x3+=win_task->pix_left;
if (!(0<=x3<=win_task->pix_right) || x3>=dc->width ||
!(dc->flags&DCF_ON_TOP) && IsPixCovered0(win_task,x3,y3))
break;
} else {
if (!(0<=x3<dc->width))
break;
}
} else if (dc->flags & DCF_SCRN_BITMAP)
x3+=win_task->pix_left;
dst=dst2+x3;
c=*dst;
if (db) {
db2=db+x3;
if (0<=z<=*db2) {
*db2=z;
plot=TRUE;
} else
plot=FALSE;
} else
plot=TRUE;
if ((not_color && c!=dc->color2 ||
!not_color && c==dc->color2) && plot) {
if (dc->flags & DCF_LOCATE_NEAREST) {
dist=DistSqrI64(x3,y3,dc->cur_x,dc->cur_y);
if (dist<=dc->nearest_dist)
dc->nearest_dist=dist;
}
if (dc->flags & DCF_RECORD_EXTENTS) {
if (x3<dc->min_x) dc->min_x=x3;
if (x3>dc->max_x) dc->max_x=x3;
if (y3<dc->min_y) dc->min_y=y3;
if (y3>dc->max_y) dc->max_y=y3;
}
dst=dst2+x3;
c=color.c0.color;
if (dither) {
if (probability_dither) {
if (RandU16<dc->dither_probability_u16)
c=color.c1.color;
} else
if ((x3^y3)&1)
c=color.c1.color;
}
switch [color.c0.rop] {
case ROPB_EQU:
case ROPB_MONO:
*dst=c;
break;
case ROPB_COLLISION:
c2=*dst;
if (c2!=TRANSPARENT && c2!=bkcolor.c0.color)
dc->collision_cnt++;
break;
case ROPB_XOR:
*dst^=c;
break;
}
res++;
x++;
} else
break;
}
if (dc->flags & DCF_SCRN_BITMAP)
*x1=x-1-win_task->scroll_x;
else
*x1=x-1;
x=x2-1;
while (TRUE) {
x3=x;
if (x3&(FONT_WIDTH-1)==FONT_WIDTH-1) {
if (dc->flags & DCF_SCRN_BITMAP) {
if (x3<0) break;
x3+=win_task->pix_left;
if (!(0<=x3<=win_task->pix_right) || x3>=dc->width ||
!(dc->flags&DCF_ON_TOP) && IsPixCovered0(win_task,x3,y3))
break;
} else
if (!(0<=x3<dc->width))
break;
} else if (dc->flags & DCF_SCRN_BITMAP)
x3+=win_task->pix_left;
dst=dst2+x3;
c=*dst;
if (db) {
db2=db+x3;
if (0<=z<=*db2) {
*db2=z;
plot=TRUE;
} else
plot=FALSE;
} else
plot=TRUE;
if ((not_color && c!=dc->color2 ||
!not_color && c==dc->color2) && plot) {
if (dc->flags & DCF_LOCATE_NEAREST) {
dist=DistSqrI64(x3,y3,dc->cur_x,dc->cur_y);
if (dist<=dc->nearest_dist)
dc->nearest_dist=dist;
}
if (dc->flags & DCF_RECORD_EXTENTS) {
if (x3<dc->min_x) dc->min_x=x3;
if (x3>dc->max_x) dc->max_x=x3;
if (y3<dc->min_y) dc->min_y=y3;
if (y3>dc->max_y) dc->max_y=y3;
}
dst=dst2+x3;
c=color.c0.color;
if (dither) {
if (probability_dither) {
if (RandU16<dc->dither_probability_u16)
c=color.c1.color;
} else
if ((x3^y3)&1)
c=color.c1.color;
}
switch [color.c0.rop] {
case ROPB_EQU:
case ROPB_MONO:
*dst=c;
break;
case ROPB_COLLISION:
c2=*dst;
if (c2!=TRANSPARENT && c2!=bkcolor.c0.color)
dc->collision_cnt++;
break;
case ROPB_XOR:
*dst^=c;
break;
}
res++;
x--;
} else
break;
}
return res;
gr_done:
return 0;
}
public I64 GrHLine(CDC *dc=gr.dc,I64 x1,I64 x2,I64 y,I64 z1=0,I64 z2=0)
{//3D. No transformation or thick.
//Returns cnt of pixs changed
//Uses $LK,"fixed-point",A="FI:::/Demo/Lectures/FixedPoint.HC"$.
I64 dist,dx,dz,z,res=0,i,j,d;
U8 *dst;
CColorROPU32 c,c2,color=dc->color,bkcolor=dc->bkcolor,dither_colors;
I32 *db;
Bool plot=TRUE,char_clear,dither,probability_dither;
CTask *win_task;
if (!dc->depth_buf) {
if (x2<x1) SwapI64(&x1,&x2);
return GrRect(dc,x1,y,x2-x1+1,1);
}
if (dc->flags & DCF_SCRN_BITMAP) {
win_task=dc->win_task;
x1+=win_task->scroll_x;
x2+=win_task->scroll_x;
y +=win_task->scroll_y;
z1+=win_task->scroll_z;
z2+=win_task->scroll_z;
}
if (dc->flags & DCF_RECORD_EXTENTS) {
if (x1<dc->min_x) dc->min_x=x1;
if (x1>dc->max_x) dc->max_x=x1;
if (x2<dc->min_x) dc->min_x=x2;
if (x2>dc->max_x) dc->max_x=x2;
if (y<dc->min_y) dc->min_y=y;
if (y>dc->max_y) dc->max_y=y;
}
if (y<0) goto gr_done;
if (x2<x1) {
SwapI64(&x1,&x2);
SwapI64(&z1,&z2);
}
if (x2<0)
goto gr_done;
if (x1<0) {
i=-x1;
x1=0;
} else
i=0;
j=0;
if (dc->flags & DCF_SCRN_BITMAP) {
x1+=win_task->pix_left;
x2+=win_task->pix_left;
if (x1>win_task->pix_right)
goto gr_done;
if (x2>win_task->pix_right) {
j=x2-win_task->pix_right;
x2=win_task->pix_right;
}
y+=win_task->pix_top;
if (!(0<=y<=win_task->pix_bottom) || x2<0)
goto gr_done;
}
if (x1>=dc->width || y>=dc->height)
goto gr_done;
dx=x2+j-(x1-i);
d=dc->width_internal*y+x1;
if (db=dc->depth_buf) {
db+=d;
if (dx)
dz=(z2-z1)<<32/dx;
else
dz=0;
z=z1<<32;
}
if (i)
z+=i*dz;
if (x2>=dc->width)
x2=dc->width-1;
if (dc->flags & DCF_LOCATE_NEAREST) {
if (x1<=dc->cur_x<=x2)
dist=0;
else if (dc->cur_x<x1)
dist=SqrI64(x1-dc->cur_x);
else
dist=SqrI64(dc->cur_x-x2);
dist+=SqrI64(y-dc->cur_y);
if (dist<=dc->nearest_dist)
dc->nearest_dist=dist;
}
if (dc->flags & DCF_DONT_DRAW)
goto gr_done;
if (!(dc->flags & DCF_SCRN_BITMAP) ||
win_task->next_task==sys_winmgr_task ||
dc->flags&DCF_ON_TOP || !IsPixCovered0(win_task,x1,y))
char_clear=TRUE;
else
char_clear=FALSE;
if (color.c1.rop&(ROPBF_DITHER|ROPBF_PROBABILITY_DITHER)) {
dither=TRUE;
if (color.c1.rop&ROPBF_PROBABILITY_DITHER) {
probability_dither=TRUE;
color.c1.rop=color.c0.rop;
dither_colors=color;
if (RandU16<dc->dither_probability_u16)
color.c0=dither_colors.c1;
else
color.c0=dither_colors.c0;
} else {
probability_dither=FALSE;
color.c1.rop=color.c0.rop;
if ((x1^y)&1)
SwapU16(&color.c0,&color.c1);
}
} else
dither=FALSE;
while (x1<=x2) {
if (char_clear) {
if (db) {
if (0<=z.i32[1]<=*db) {
*db=z.i32[1];
plot=TRUE;
} else
plot=FALSE;
}
if (plot) {
dst=dc->body+d;
c=color.c0.color;
switch [color.c0.rop] {
case ROPB_EQU:
case ROPB_MONO:
*dst=c;
break;
case ROPB_COLLISION:
c2=*dst;
if (c2!=TRANSPARENT && c2!=bkcolor.c0.color)
dc->collision_cnt++;
break;
case ROPB_XOR:
*dst^=c;
break;
}
res++;
}
}
if (dither) {
if (probability_dither) {
if (RandU16<dc->dither_probability_u16)
color.c0=dither_colors.c1;
else
color.c0=dither_colors.c0;
} else
SwapU16(&color.c0,&color.c1);
}
d++;
x1++;
if (db)
db++;
z+=dz;
if (!(x1&(FONT_WIDTH-1)) && x1<=x2) {
if (!(dc->flags & DCF_SCRN_BITMAP)||
win_task->next_task==sys_winmgr_task ||
dc->flags&DCF_ON_TOP || !IsPixCovered0(win_task,x1,y))
char_clear=TRUE;
else
char_clear=FALSE;
}
}
gr_done:
return res;
}
public I64 GrVLine(CDC *dc=gr.dc,I64 x,I64 y1,I64 y2,I64 z1=0,I64 z2=0)
{//3D. No transformation or thick.
//Returns cnt of pixs changed
//Uses $LK,"fixed-point",A="FI:::/Demo/Lectures/FixedPoint.HC"$.
I64 dist,dy,dz,z,res=0,i,j,d;
U8 *dst;
CColorROPU32 c,c2,color=dc->color,bkcolor=dc->bkcolor,dither_colors;
I32 *db;
Bool plot=TRUE,char_clear,dither,probability_dither;
CTask *win_task;
if (!dc->depth_buf) {
if (y2<y1) SwapI64(&y1,&y2);
return GrRect(dc,x,y1,1,y2-y1+1);
}
if (dc->flags & DCF_SCRN_BITMAP) {
win_task=dc->win_task;
x +=win_task->scroll_x;
y1+=win_task->scroll_y;
y2+=win_task->scroll_y;
z1+=win_task->scroll_z;
z2+=win_task->scroll_z;
}
if (dc->flags & DCF_RECORD_EXTENTS) {
if (x<dc->min_x) dc->min_x=x;
if (x>dc->max_x) dc->max_x=x;
if (y1<dc->min_y) dc->min_y=y1;
if (y1>dc->max_y) dc->max_y=y1;
if (y2<dc->min_y) dc->min_y=y2;
if (y2>dc->max_y) dc->max_y=y2;
}
if (x<0) goto gr_done;
if (y2<y1) {
SwapI64(&y1,&y2);
SwapI64(&z1,&z2);
}
if (y2<0)
goto gr_done;
if (y1<0) {
i=-y1;
y1=0;
} else
i=0;
j=0;
if (dc->flags & DCF_SCRN_BITMAP) {
y1+=win_task->pix_top;
y2+=win_task->pix_top;
if (y1>win_task->pix_bottom)
goto gr_done;
if (y2>win_task->pix_bottom) {
j=y2-win_task->pix_bottom;
y2=win_task->pix_bottom;
}
x+=win_task->pix_left;
if (!(0<=x<=win_task->pix_right) || y2<0)
goto gr_done;
}
if (y1>=dc->height || x>=dc->width)
goto gr_done;
dy=y2+j-(y1-i);
d=dc->width_internal*y1+x;
if (db=dc->depth_buf) {
db+=d;
if (dy)
dz=(z2-z1)<<32/dy;
else
dz=0;
z=z1<<32;
}
if (i)
z+=i*dz;
if (y2>=dc->height)
y2=dc->height-1;
if (dc->flags & DCF_LOCATE_NEAREST) {
if (y1<=dc->cur_y<=y2)
dist=0;
else if (dc->cur_y<y1)
dist=SqrI64(y1-dc->cur_y);
else
dist=SqrI64(dc->cur_y-y2);
dist+=SqrI64(x-dc->cur_x);
if (dist<=dc->nearest_dist)
dc->nearest_dist=dist;
}
if (dc->flags & DCF_DONT_DRAW)
goto gr_done;
if (!(dc->flags & DCF_SCRN_BITMAP) ||
win_task->next_task==sys_winmgr_task ||
dc->flags&DCF_ON_TOP || !IsPixCovered0(win_task,x,y1))
char_clear=TRUE;
else
char_clear=FALSE;
if (color.c1.rop&(ROPBF_DITHER|ROPBF_PROBABILITY_DITHER)) {
dither=TRUE;
if (color.c1.rop&ROPBF_PROBABILITY_DITHER) {
probability_dither=TRUE;
color.c1.rop=color.c0.rop;
dither_colors=color;
if (RandU16<dc->dither_probability_u16)
color.c0=dither_colors.c1;
else
color.c0=dither_colors.c0;
} else {
probability_dither=FALSE;
color.c1.rop=color.c0.rop;
if ((x^y1)&1)
SwapU16(&color.c0,&color.c1);
}
} else
dither=FALSE;
while (y1<=y2) {
if (char_clear) {
if (db) {
if (0<=z.i32[1]<=*db) {
*db=z.i32[1];
plot=TRUE;
} else
plot=FALSE;
}
if (plot) {
dst=dc->body+d;
c=color.c0.color;
switch [color.c0.rop] {
case ROPB_EQU:
case ROPB_MONO:
*dst=c;
break;
case ROPB_COLLISION:
c2=*dst;
if (c2!=TRANSPARENT && c2!=bkcolor.c0.color)
dc->collision_cnt++;
break;
case ROPB_XOR:
*dst^=c;
break;
}
res++;
}
}
if (dither) {
if (probability_dither) {
if (RandU16<dc->dither_probability_u16)
color.c0=dither_colors.c1;
else
color.c0=dither_colors.c0;
} else
SwapU16(&color.c0,&color.c1);
}
d+=dc->width_internal;
y1++;
if (db)
db+=dc->width_internal;
z+=dz;
if (!(y1&(FONT_HEIGHT-1)) && y1<=y2) {
if (!(dc->flags & DCF_SCRN_BITMAP)||
win_task->next_task==sys_winmgr_task ||
dc->flags&DCF_ON_TOP || !IsPixCovered0(win_task,x,y1))
char_clear=TRUE;
else
char_clear=FALSE;
}
}
gr_done:
return res;
}
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