A TempleOS distro for heretics
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#help_index "Graphics/Sprite;Sprites"
/*
$LK,"CSprite",A="MN:CSprite"$s are stored as a sequence of var
length operations with a 1-byte $LK,"type",A="MN:SPT_PT"$ leading
each operation. They are stored, one after another,
in a chunk of memory terminated by a $LK,"zero",A="MN:SPT_END"$.
$LK,"Sprite3",A="MN:Sprite3"$() shows how the $LK,"CSprite",A="MN:CSprite"$ unions are used.
$LK,"SpriteElemSize",A="MN:SpriteElemSize"$() will return the size of a single
element, while $LK,"SpriteSize",A="MN:SpriteSize"$() will return the size
of an entire list. Look at $LK,"sprite_elem_base_sizes",A="MN:sprite_elem_base_sizes"$.
See $MA-X+PU,"::/Apps/GrModels",LM="Cd(\"::/Apps/GrModels\");Dir;View;\n"$ for an example of
making CSprite by hand. It uses $LK,"SPT_MESH",A="MN:SPT_MESH"$,
one of the most complicated.
*/
public U0 Sprite3(CDC *dc=gr.dc,I64 x,I64 y,I64 z,U8 *elems,
Bool just_one_elem=FALSE)
{//Plot a sprite into a CDC.
CSprite *tmpg=elems-offset(CSprite.start);
I64 i,j,k,x1,y1,z1,x2,y2,
*old_r,*r2,old_flags=dc->flags,old_pen_width=dc->pen_width;
I32 *ptr;
CColorROPU32 old_color=dc->color;
CDC *img;
CD3I32 *p,*p2;
CGrSym old_sym;
MemCpy(&old_sym,&dc->sym,sizeof(CGrSym));
if (dc->flags & DCF_LOCATE_NEAREST)
dc->nearest_dist=MAX_I64;
while (tmpg->type&SPG_TYPE_MASK) {
switch (tmpg->type&SPG_TYPE_MASK) {
case SPT_COLOR:
dc->color=dc->color&~(COLORROP_COLORS_MASK|ROPF_DITHER)|tmpg->c.color;
break;
case SPT_DITHER_COLOR:
dc->color=dc->color&~COLORROP_COLORS_MASK|
tmpg->d.dither_color.u8[0]|
tmpg->d.dither_color.u8[1]<<COLORROP_BITS|ROPF_DITHER;
break;
case SPT_WIDTH:
dc->pen_width=tmpg->w.width;
DCPenWidthScale(dc);
break;
case SPT_TRANSFORM_ON:
if (!(dc->flags&DCF_TRANSFORMATION)) {
x-=dc->x;
y-=dc->y;
z-=dc->z;
}
dc->flags|=DCF_TRANSFORMATION;
break;
case SPT_TRANSFORM_OFF:
if (dc->flags&DCF_TRANSFORMATION) {
x+=dc->x;
y+=dc->y;
z+=dc->z;
}
dc->flags&=~DCF_TRANSFORMATION;
break;
case SPT_PT:
GrPlot3(dc,tmpg->p.x1+x,tmpg->p.y1+y,z);
break;
case SPT_TEXT:
GrPrint3(dc,tmpg->ps.x1+x,tmpg->ps.y1+y,z,"%s",tmpg->ps.st);
break;
case SPT_TEXT_BOX:
GrTextBox3(dc,tmpg->ps.x1+x,tmpg->ps.y1+y,z,tmpg->ps.st);
break;
case SPT_TEXT_DIAMOND:
GrTextDiamond3(dc,tmpg->ps.x1+x,tmpg->ps.y1+y,z,tmpg->ps.st);
break;
case SPT_FLOOD_FILL:
GrFloodFill3(dc,tmpg->p.x1+x,tmpg->p.y1+y,z,FALSE);
break;
case SPT_FLOOD_FILL_NOT:
i=dc->color;
dc->color=dc->color.c0;
GrFloodFill3(dc,tmpg->p.x1+x,tmpg->p.y1+y,z,TRUE);
dc->color=i;
break;
case SPT_SHIFT:
x+=tmpg->p.x1;
y+=tmpg->p.y1;
break;
case SPT_LINE:
GrLine3(dc,tmpg->pp.x1+x,tmpg->pp.y1+y,z,
tmpg->pp.x2+x,tmpg->pp.y2+y,z);
break;
case SPT_ARROW:
GrArrow3(dc,tmpg->pp.x1+x,tmpg->pp.y1+y,z,
tmpg->pp.x2+x,tmpg->pp.y2+y,z);
break;
case SPT_PLANAR_SYMMETRY:
if (DCSymmetry3Set(dc,tmpg->pp.x1+x,tmpg->pp.y1+y,z,
tmpg->pp.x2+x,tmpg->pp.y2+y,z,
tmpg->pp.x2+x,tmpg->pp.y2+y,z+1))
dc->flags|=DCF_SYMMETRY;
else
dc->flags&=~DCF_SYMMETRY;
break;
case SPT_BITMAP:
img=CAlloc(sizeof(CDC));
img->width=tmpg->pwhu.width;
img->width_internal=(tmpg->pwhu.width+7)&~7;
img->height=tmpg->pwhu.height;
img->body=&tmpg->pwhu.u;
img->dc_signature=DCS_SIGNATURE_VAL;
GrBlot3(dc,tmpg->pwhu.x1+x,tmpg->pwhu.y1+y,z,img);
Free(img);
break;
case SPT_RECT:
GrRect3(dc,tmpg->pp.x1+x,tmpg->pp.y1+y,z,
tmpg->pp.x2-tmpg->pp.x1,tmpg->pp.y2-tmpg->pp.y1);
break;
case SPT_ROTATED_RECT:
x1=tmpg->ppa.x1+x;
y1=tmpg->ppa.y1+y;
z1=z;
Mat4x4MulXYZ(dc->r,&x1,&y1,&z1);
old_r=dc->r;
dc->flags|=DCF_TRANSFORMATION;
r2=Mat4x4IdentNew;
Mat4x4RotZ(r2,-tmpg->ppa.angle);
Mat4x4TranslationEqu(r2,x1,y1,z1);
DCMat4x4Set(dc,Mat4x4MulMat4x4New(old_r,r2));
GrRect3(dc,0,0,0,
tmpg->ppa.x2-tmpg->ppa.x1,tmpg->ppa.y2-tmpg->ppa.y1);
Free(dc->r);
Free(r2);
DCMat4x4Set(dc,old_r);
dc->flags=dc->flags&~DCF_TRANSFORMATION|old_flags;
break;
case SPT_CIRCLE:
GrCircle3(dc,tmpg->pr.x1+x,tmpg->pr.y1+y,z,tmpg->pr.radius);
break;
case SPT_ELLIPSE:
GrEllipse3(dc,tmpg->pwha.x1+x,tmpg->pwha.y1+y,z,tmpg->pwha.width,
tmpg->pwha.height,tmpg->pwha.angle);
break;
case SPT_POLYGON:
GrRegPoly3(dc,tmpg->pwhas.x1+x,tmpg->pwhas.y1+y,z,tmpg->pwhas.width,
tmpg->pwhas.height,tmpg->pwhas.sides,tmpg->pwhas.angle);
break;
case SPT_POLYLINE:
ptr=&tmpg->nu.u;
x1=ptr[0];
y1=ptr[1];
for (i=1;i<tmpg->nu.num;i++) {
x2=ptr[i<<1];
y2=ptr[i<<1+1];
GrLine3(dc,x1+x,y1+y,z,x2+x,y2+y,z);
x1=x2;y1=y2;
}
break;
case SPT_POLYPT:
x1=tmpg->npu.x;
y1=tmpg->npu.y;
ptr=&tmpg->npu.u;
k=tmpg->npu.num*3;
GrPlot3(dc,x1+x,y1+y,z);
for (i=0;i<k;i+=3) {
j=BFieldExtU32(ptr,i,3);
x1+=gr_x_offsets[j];
y1+=gr_y_offsets[j];
GrPlot3(dc,x1+x,y1+y,z);
}
break;
start:
p2=p=MAlloc(tmpg->nu.num*sizeof(CD3I32));
MemCpy(p,&tmpg->nu.u,tmpg->nu.num*sizeof(CD3I32));
for (i=0;i<tmpg->nu.num;i++,p2++) {
p2->x+=x;
p2->y+=y;
p2->z+=z;
}
case SPT_BSPLINE2:
Gr2BSpline3(dc,p,tmpg->nu.num,FALSE);
break;
case SPT_BSPLINE3:
Gr3BSpline3(dc,p,tmpg->nu.num,FALSE);
break;
case SPT_BSPLINE2_CLOSED:
Gr2BSpline3(dc,p,tmpg->nu.num,TRUE);
break;
case SPT_BSPLINE3_CLOSED:
Gr3BSpline3(dc,p,tmpg->nu.num,TRUE);
break;
end:
Free(p);
break;
case SPT_MESH:
p2=p=MAlloc(tmpg->mu.vertex_cnt*sizeof(CD3I32));
MemCpy(p,&tmpg->mu.u,tmpg->mu.vertex_cnt*sizeof(CD3I32));
for (i=0;i<tmpg->mu.vertex_cnt;i++,p2++) {
p2->x+=x;
p2->y+=y;
p2->z+=z;
}
Gr3Mesh(dc,tmpg->mu.vertex_cnt,p,tmpg->mu.tri_cnt,
(&tmpg->mu.u)(U8 *)+sizeof(CD3I32)*tmpg->mu.vertex_cnt);
Free(p);
break;
case SPT_SHIFTABLE_MESH:
if (dc->flags&DCF_TRANSFORMATION) {
dc->x+=tmpg->pmu.x;
dc->y+=tmpg->pmu.y;
dc->z+=tmpg->pmu.z;
x1=x;
y1=y;
z1=z;
} else {
x1=tmpg->pmu.x+x;
y1=tmpg->pmu.y+y;
z1=tmpg->pmu.z+z;
}
p2=p=MAlloc(tmpg->pmu.vertex_cnt*sizeof(CD3I32));
MemCpy(p,&tmpg->pmu.u,tmpg->pmu.vertex_cnt*sizeof(CD3I32));
for (i=0;i<tmpg->pmu.vertex_cnt;i++,p2++) {
p2->x+=x1;
p2->y+=y1;
p2->z+=z1;
}
Gr3Mesh(dc,tmpg->pmu.vertex_cnt,p,tmpg->pmu.tri_cnt,
(&tmpg->pmu.u)(U8 *)+sizeof(CD3I32)*tmpg->pmu.vertex_cnt);
Free(p);
if (dc->flags&DCF_TRANSFORMATION) {
dc->x-=tmpg->pmu.x;
dc->y-=tmpg->pmu.y;
dc->z-=tmpg->pmu.z;
}
break;
}
if (just_one_elem) break;
tmpg(U8 *)+=SpriteElemSize(tmpg);
}
MemCpy(&dc->sym,&old_sym,sizeof(CGrSym));
dc->color=old_color;
dc->pen_width=old_pen_width;
dc->flags=dc->flags&~(DCF_SYMMETRY|DCF_TRANSFORMATION) |
old_flags&(DCF_SYMMETRY|DCF_TRANSFORMATION);
}
public U0 Sprite3B(CDC *dc=gr.dc,I64 x,I64 y,I64 z,U8 *elems)
{//Plot a sprite into a CDC, post transform xyz translation.
I64 old_x=dc->x,old_y=dc->y,old_z=dc->z,
old_flags=dc->flags&DCF_TRANSFORMATION;
dc->x=x; dc->y=y; dc->z=z;
dc->flags|=DCF_TRANSFORMATION;
Sprite3(dc,0,0,0,elems);
dc->x=old_x; dc->y=old_y; dc->z=old_z;
dc->flags=dc->flags&~DCF_TRANSFORMATION|old_flags;
}
public U0 SpriteMat3B(CDC *dc=gr.dc,I64 x,I64 y,I64 z,U8 *elems,I64 *m)
{//Plot rotated by matrix.
I64 r[16],*old_r=dc->r,new_m[16],
old_flags=dc->flags&DCF_TRANSFORMATION;
MemCpy(new_m,m,16*sizeof(I64));
dc->flags|=DCF_TRANSFORMATION;
Mat4x4TranslationAdd(new_m,x,y,z);
dc->r=Mat4x4MulMat4x4Equ(r,old_r,new_m);
Sprite3(dc,0,0,0,elems);
dc->r=old_r;
dc->flags=dc->flags&~DCF_TRANSFORMATION|old_flags;
}
public U0 SpriteX3B(CDC *dc=gr.dc,I64 x,I64 y,I64 z,U8 *elems,F64 <EFBFBD>=0)
{//Plot rotated around X axis.
I64 r[16];
Mat4x4IdentEqu(r);
Mat4x4RotX(r,<EFBFBD>);
SpriteMat3B(dc,x,y,z,elems,r);
}
public U0 SpriteY3B(CDC *dc=gr.dc,I64 x,I64 y,I64 z,U8 *elems,F64 <EFBFBD>=0)
{//Plot rotated around Y axis.
I64 r[16];
Mat4x4IdentEqu(r);
Mat4x4RotY(r,<EFBFBD>);
SpriteMat3B(dc,x,y,z,elems,r);
}
public U0 SpriteZ3B(CDC *dc=gr.dc,I64 x,I64 y,I64 z,U8 *elems,F64 <EFBFBD>=0)
{//Plot rotated around Z axis.
I64 r[16];
Mat4x4IdentEqu(r);
Mat4x4RotZ(r,<EFBFBD>);
SpriteMat3B(dc,x,y,z,elems,r);
}
public U0 SpriteExtents(U8 *elems,I64 *min_x=NULL,I64 *max_x=NULL,
I64 *min_y=NULL,I64 *max_y=NULL)
{//Ignores flood fills.
CDC *dc=DCNew(MAX_I32,MAX_I32,Fs,TRUE);
DCExtentsInit(dc);
Sprite3(dc,MAX_I32/2,MAX_I32/2,MAX_I32/2,elems);
if (dc->min_x<=dc->max_x) {
dc->min_x-=MAX_I32/2;
dc->max_x-=MAX_I32/2;
}
if (dc->min_y<=dc->max_y) {
dc->min_y-=MAX_I32/2;
dc->max_y-=MAX_I32/2;
}
if (min_x) *min_x=dc->min_x;
if (max_x) *max_x=dc->max_x;
if (min_y) *min_y=dc->min_y;
if (max_y) *max_y=dc->max_y;
DCDel(dc);
}
public CDC *Sprite2DC(U8 *elems)
{//Convert sprite to device context.
CDC *res;
I64 min_x,max_x,min_y,max_y;
SpriteExtents(elems,&min_x,&max_x,&min_y,&max_y);
res=DCNew(max_x-min_x+1,max_y-min_y+1);
Sprite3(res,-min_x,-min_y,0,elems);
return res;
}
public U8 *SpriteInterpolate(F64 t,U8 *elems0,U8 *elems1)
{//The two CSprite should be ident except for points shifted around.
//t ranges from 0.0 to 1.0.
I64 i,t1=GR_SCALE*t,t0=GR_SCALE-t1;
I32 *ptr0,*ptr1,*ptrr;
CD3I32 *p0,*p1,*pr;
U8 *res;
CSprite *tmpg0=elems0-offset(CSprite.start),
*tmpg1=elems1-offset(CSprite.start),*tmpgr;
if (t<0.5) {
i=SpriteSize(elems0),
res=MAlloc(i);
MemCpy(res,elems0,i);
} else {
i=SpriteSize(elems1),
res=MAlloc(i);
MemCpy(res,elems1,i);
}
tmpgr=res-offset(CSprite.start);
while (tmpg0->type&SPG_TYPE_MASK) {
if (tmpg0->type&SPG_TYPE_MASK!=tmpg1->type&SPG_TYPE_MASK)
throw('Graphics');
switch (tmpg0->type&SPG_TYPE_MASK) {
case SPT_ROTATED_RECT:
tmpgr->ppa.angle=(tmpg0->ppa.angle*t0+tmpg1->ppa.angle*t1)/GR_SCALE;
case SPT_RECT:
case SPT_LINE:
case SPT_ARROW:
case SPT_PLANAR_SYMMETRY:
tmpgr->pp.x2=(tmpg0->pp.x2*t0+tmpg1->pp.x2*t1)>>32;
tmpgr->pp.y2=(tmpg0->pp.y2*t0+tmpg1->pp.y2*t1)>>32;
case SPT_TEXT:
case SPT_TEXT_BOX:
case SPT_TEXT_DIAMOND:
case SPT_PT:
case SPT_FLOOD_FILL:
case SPT_FLOOD_FILL_NOT:
case SPT_SHIFT:
tmpgr->p.x1=(tmpg0->p.x1*t0+tmpg1->p.x1*t1)>>32;
tmpgr->p.y1=(tmpg0->p.y1*t0+tmpg1->p.y1*t1)>>32;
break;
case SPT_CIRCLE:
tmpgr->pr.radius=(tmpg0->pr.radius*t0+tmpg1->pr.radius*t1)>>32;
tmpgr->pr.x1=(tmpg0->pr.x1*t0+tmpg1->pr.x1*t1)>>32;
tmpgr->pr.y1=(tmpg0->pr.y1*t0+tmpg1->pr.y1*t1)>>32;
break;
case SPT_ELLIPSE:
case SPT_POLYGON:
tmpgr->pwha.x1=(tmpg0->pwha.x1*t0+tmpg1->pwha.x1*t1)>>32;
tmpgr->pwha.y1=(tmpg0->pwha.y1*t0+tmpg1->pwha.y1*t1)>>32;
tmpgr->pwha.width =(tmpg0->pwha.width *t0+tmpg1->pwha.width*t1)>>32;
tmpgr->pwha.height=(tmpg0->pwha.height*t0+tmpg1->pwha.height*t1)>>32;
break;
case SPT_BITMAP:
tmpgr->pwhu.x1=(tmpg0->pwhu.x1*t0+tmpg1->pwhu.x1*t1)>>32;
tmpgr->pwhu.y1=(tmpg0->pwhu.y1*t0+tmpg1->pwhu.y1*t1)>>32;
break;
case SPT_POLYLINE:
ptr0=&tmpg0->nu.u;
ptr1=&tmpg1->nu.u;
ptrr=&tmpgr->nu.u;
for (i=0;i<tmpg0->nu.num;i++) {
ptrr[i<<1]=(ptr0[i<<1]*t0+ptr1[i<<1]*t1)>>32;
ptrr[i<<1+1]=(ptr0[i<<1+1]*t0+ptr1[i<<1+1]*t1)>>32;
}
break;
case SPT_POLYPT:
tmpgr->npu.x=(tmpg0->npu.x*t0+tmpg1->npu.x*t1)>>32;
tmpgr->npu.y=(tmpg0->npu.y*t0+tmpg1->npu.y*t1)>>32;
break;
case SPT_BSPLINE2:
case SPT_BSPLINE3:
case SPT_BSPLINE2_CLOSED:
case SPT_BSPLINE3_CLOSED:
p0=&tmpg0->nu.u;
p1=&tmpg1->nu.u;
pr=&tmpgr->nu.u;
for (i=0;i<tmpg0->nu.num;i++) {
pr[i].x=(p0[i].x*t0+p1[i].x*t1)>>32;
pr[i].y=(p0[i].y*t0+p1[i].y*t1)>>32;
pr[i].z=(p0[i].z*t0+p1[i].z*t1)>>32;
}
break;
case SPT_MESH:
p0=&tmpg0->mu.u;
p1=&tmpg1->mu.u;
pr=&tmpgr->mu.u;
for (i=0;i<tmpg0->mu.vertex_cnt;i++) {
pr[i].x=(p0[i].x*t0+p1[i].x*t1)>>32;
pr[i].y=(p0[i].y*t0+p1[i].y*t1)>>32;
pr[i].z=(p0[i].z*t0+p1[i].z*t1)>>32;
}
break;
case SPT_SHIFTABLE_MESH:
p0=&tmpg0->pmu.u;
p1=&tmpg1->pmu.u;
pr=&tmpgr->pmu.u;
for (i=0;i<tmpg0->pmu.vertex_cnt;i++) {
pr[i].x=(p0[i].x*t0+p1[i].x*t1)>>32;
pr[i].y=(p0[i].y*t0+p1[i].y*t1)>>32;
pr[i].z=(p0[i].z*t0+p1[i].z*t1)>>32;
}
break;
}
tmpg0(U8 *)+=SpriteElemSize(tmpg0);
tmpg1(U8 *)+=SpriteElemSize(tmpg1);
tmpgr(U8 *)+=SpriteElemSize(tmpgr);
}
return res;
}
#help_index "Graphics/Sprite;DolDoc/Output;StdOut/DolDoc"
public CDocEntry *DocSprite(CDoc *doc=NULL,U8 *elems,U8 *fmt=NULL)
{//Put a sprite into a document. You can, optionally, supply a fmt string
//for $LK,"DolDoc",A="FI:::/Doc/DolDocOverview.DD"$ cmd with a %d for the bin_num.
I64 size;
U8 *st;
Bool unlock;
CDocEntry *doc_e;
CDocBin *tmpb;
if (!doc && !(doc=DocPut)) return NULL;
unlock=DocLock(doc);
size=SpriteSize(elems);
tmpb=CAlloc(sizeof(CDocBin),doc->mem_task);
tmpb->size=size;
tmpb->data=MAlloc(size,doc->mem_task);
MemCpy(tmpb->data,elems,size);
tmpb->num=doc->cur_bin_num;
tmpb->use_cnt=1;
QueIns(tmpb,doc->bin_head.last);
if (fmt)
st=MStrPrint(fmt,doc->cur_bin_num++);
else
st=MStrPrint("$$SP,\"\",BI=%d$$",doc->cur_bin_num++);
doc_e=DocPrint(doc,"%s",st);
Free(st);
doc_e->bin_data=tmpb;
if (doc_e && doc_e->de_flags&DOCEF_TAG && doc_e->tag && *doc_e->tag)
tmpb->tag=StrNew(doc_e->tag,doc->mem_task);
if (unlock)
DocUnlock(doc);
return doc_e;
}
public CDocEntry *Sprite(U8 *elems,U8 *fmt=NULL)
{//Put sprite to the command-line, $LK,"DocPut",A="MN:DocPut"$.
//If you set fmt, then include dollars ("$$SP ...$$") and leave %d for num.
CDoc *doc;
if (doc=DocPut)
return DocSprite(doc,elems,fmt);
return NULL;
}