/*static*/ void Surface::Blit( const Surface& Src, Surface& Dest, int dx, int dy, int w, int h, int sx, int sy, uint Flags, uint ColorKey /*= DEFAULT_COLOR_KEY*/, float Alpha /*= 0.5f*/ )
{
PROFILE_FUNCTION;
if( Flags & BLIT_ADDITIVE )
{
AdditiveBlit( Src, Dest, dx, dy, w, h, sx, sy );
}
else if( ( Flags & ( BLIT_MASK | BLIT_BLEND ) ) == ( BLIT_MASK | BLIT_BLEND ) )
{
MaskBlendBlit( Src, Dest, dx, dy, w, h, sx, sy, ColorKey );
}
else if( ( Flags & ( BLIT_MASK | BLIT_ALPHA ) ) == ( BLIT_MASK | BLIT_ALPHA ) )
{
MaskAlphaBlit( Src, Dest, dx, dy, w, h, sx, sy, ColorKey, Alpha );
}
else if( Flags & BLIT_MASK )
{
MaskBlit( Src, Dest, dx, dy, w, h, sx, sy, ColorKey );
}
else if( Flags & BLIT_BLEND )
{
BlendBlit( Src, Dest, dx, dy, w, h, sx, sy );
}
else if( Flags & BLIT_ALPHA )
{
AlphaBlit( Src, Dest, dx, dy, w, h, sx, sy, Alpha );
}
else
{
StandardBlit( Src, Dest, dx, dy, w, h, sx, sy );
}
}
void CGraphView::Blit(const Canvas& src,int x,int y,bool trans)
{
if (trans)
{
AlphaBlit(src,x,y);
return;
}
const int bpp=4;
int nDestwidth=pDib->Width();
int nDestheight=pDib->Height();
int xstart=0;
int ystart=0;
int xlen=src.Width();
int ylen=src.Height();
int ox=x;
int oy=y;
DoClipping(x,y,xstart,xlen,ystart,ylen);
if (xlen<1 || ylen<1) return; // offscreen
u32* pDest=(u32*)(pDib->GetPixels())+(y*nDestwidth+x);
u32* pSrc =(u32*)src.GetPixels() +(ystart*src.Width()+xstart);
while (ylen)
{
int x=xlen;
while (x)
{
// convert from ARGB to ABGR
/*
u32 c=*pSrc++;
u8 r=(u8)((c>>16)&255);
u8 b=(u8)(c&255);
c&=0xFF00FF00; // the alpha and green channels don't move, keep them intact
*pDest++=c|(b<<16)|r;
/*/
// Did I need to convert this to ASM? Doubt it. ;D
__asm
{
mov ebx,[pSrc]
mov eax,[ebx]
mov ebx,[pDest]
mov [ebx],eax
mov al,[ebx]
mov ah,[ebx+2]
mov [ebx],ah // have to switch from BGRA to RGBA
mov [ebx+2],al
}
++pSrc; ++pDest;
//*/
x--;
}
pDest+=nDestwidth-xlen;
pSrc+=src.Width()-xlen;
--ylen;
}
}
