void Painter::Clip(
Canvas* c, IntCoord left, IntCoord bottom, IntCoord right, IntCoord top
) {
XRectangle& r = rep->xclip[0];
IntCoord x, y;
XDisplay* d = rep->display->rep()->display_;
if (left > right) {
x = right; r.width = left - right + 1;
} else {
x = left; r.width = right - left + 1;
}
if (bottom > top) {
y = bottom; r.height = bottom - top + 1;
} else {
y = top; r.height = top - bottom + 1;
}
r.x = x;
r.y = c->pheight() - 1 - y;
if (r.x == 0 && r.y == 0 &&
r.width == c->pwidth() && r.height == c->pheight()
) {
/* clipping to entire canvas is equivalent to no clipping at all */
NoClip();
} else {
rep->clipped = true;
XSetClipRectangles(d, rep->fillgc, 0, 0, rep->xclip, 1, Unsorted);
XSetClipRectangles(d, rep->dashgc, 0, 0, rep->xclip, 1, Unsorted);
}
}
void CSurface8::SetBuffer(BYTE *pbyToBuf, int Wdt, int Hgt, int Pitch) {
// release old
Clear();
// set new
this->Wdt = Wdt;
this->Hgt = Hgt;
this->Pitch = Pitch;
this->Bits = pbyToBuf;
NoClip();
}
C4Surface::C4Surface(C4AbstractApp * pApp, C4Window * pWindow):
Wdt(0), Hgt(0)
{
Default();
fPrimary=true;
this->pWindow=pWindow;
// create rendering context
#ifndef USE_CONSOLE
pCtx = pGL->CreateContext(pWindow, pApp);
#endif
// reset clipping
NoClip();
}
bool CSurface8::Create(int iWdt, int iHgt)
{
Clear();
// check size
if (!iWdt || !iHgt) return false;
Wdt=iWdt; Hgt=iHgt;
// create pal
pPal = new CStdPalette;
if (!pPal) return false;
Bits=new BYTE[Wdt*Hgt];
if (!Bits) return false;
memset(Bits, 0, Wdt*Hgt);
Pitch=Wdt;
// update clipping
NoClip();
return true;
}
bool C4Surface::Create(int iWdt, int iHgt, int iFlags)
{
Clear(); Default();
// check size
if (!iWdt || !iHgt) return false;
Wdt=iWdt; Hgt=iHgt;
// create texture: check gfx system
if (!pDraw) return false;
if (!pDraw->DeviceReady()) return false;
// store color format that will be used
#ifndef USE_CONSOLE
Format=pGL->sfcFmt;
#endif
// create texture
iTexSize = std::max(iWdt, iHgt);
texture = std::make_unique<C4TexRef>(iWdt, iHgt, iFlags);
// update clipping
NoClip();
// success
return true;
}
bool CSurface8::Create(int iWdt, int iHgt, bool fOwnPal) {
Clear();
// check size
if (!iWdt || !iHgt) return false;
Wdt = iWdt;
Hgt = iHgt;
// create/link to pal
if (fOwnPal) {
pPal = new CStdPalette;
if (!pPal) return false;
memcpy(pPal, &lpDDraw->Pal, sizeof(CStdPalette));
} else
pPal = &lpDDraw->Pal;
Bits = new BYTE[Wdt * Hgt];
if (!Bits) return false;
ZeroMemory(Bits, Wdt * Hgt);
Pitch = Wdt;
// update clipping
NoClip();
return true;
}
