void cxAtlasUpdateScale9(cxAny pview)
{
cxAtlas this = pview;
CX_RETURN(!this->scale9.enable);
CX_ASSERT(!cxViewZeroSize(pview) && this->cxSprite.texture != NULL, "must set texture and size");
cxAtlasClean(pview);
cxSize2f size = cxViewSize(this);
cxRect4f tr = cxBoxTex2fToRect4f(this->cxSprite.texCoord);
cxSize2f tsize = cxSize2fv(this->cxSprite.texture->size.w * tr.w, this->cxSprite.texture->size.h * tr.h);
cxFloat txs[]={0.0f, this->scale9.box.l/tsize.w, (tsize.w - this->scale9.box.r)/tsize.w, 1.0f};
cxFloat tys[]={0.0f, this->scale9.box.t/tsize.h, (tsize.h - this->scale9.box.b)/tsize.h, 1.0f};
for(int i=0; i < 4; i++){
txs[i] = txs[i] * tr.w + tr.x;
tys[i] = tys[i] * tr.h + tr.y;
}
cxFloat bxs[]={0.0f, this->scale9.box.l, size.w - this->scale9.box.r, size.w};
cxFloat bys[]={0.0f, this->scale9.box.r, size.h - this->scale9.box.b, size.h};
cxFloat tx1=0,ty1=0,tx2=0,ty2=0;
cxFloat bx1=0,by1=0,bx2=0,by2=0;
cxFloat offx=0,offy=0;
cxColor4f color =cxViewColor(this);
for(int i=0; i < 9;i++){
tx1 = txs[i%3];
tx2 = txs[i%3 + 1];
ty1 = tys[i/3];
ty2 = tys[i/3 + 1];
bx1 = bxs[i%3];
bx2 = bxs[i%3 + 1];
by1 = bys[i/3];
by2 = bys[i/3 + 1];
cxFloat hw = (bx2 - bx1)/2.0f;
cxFloat hh = (by2 - by1)/2.0f;
if(hw == 0 || hh == 0){
continue;
}
offx = (bx2 - bx1)/2.0f + bx1 - size.w/2.0f;
offy = (size.h - (by2 - by1))/2.0f - by1;
cxBoxPoint bp;
bp.lb.colors = color;
bp.lt.colors = color;
bp.rb.colors = color;
bp.rt.colors = color;
bp.lb.vertices = cxVec3fv(-hw + offx, -hh + offy, 0.0f);
bp.rb.vertices = cxVec3fv( hw + offx, -hh + offy, 0.0f);
bp.lt.vertices = cxVec3fv(-hw + offx, hh + offy, 0.0f);
bp.rt.vertices = cxVec3fv( hw + offx, hh + offy, 0.0f);
bp.lb.texcoords = cxTex2fv(tx1, ty2);
bp.rb.texcoords = cxTex2fv(tx2, ty2);
bp.lt.texcoords = cxTex2fv(tx1, ty1);
bp.rt.texcoords = cxTex2fv(tx2, ty1);
cxAtlasAppend(this, &bp);
}
}
cxBoxTex2f cxRect4fToBoxTex2f(cxRect4f box,cxSize2f texsize)
{
cxBoxTex2f rv = cxBoxTex2fDefault();
cxFloat x = box.x / texsize.w;
cxFloat y = box.y / texsize.h;
cxFloat w = box.w / texsize.w;
cxFloat h = box.h / texsize.h;
rv.lb = cxTex2fv(x, y + h);
rv.rb = cxTex2fv(x + w, y + h);
rv.lt = cxTex2fv(x, y);
rv.rt = cxTex2fv(x + w, y);
return rv;
}
