void VW_ClipDrawMPic(id0_unsigned_t x, id0_int_t y, id0_unsigned_t chunknum)
{
id0_int_t picnum = chunknum - STARTPICM;
memptr source;
id0_unsigned_t dest,width,ofs,plane;
id0_int_t height;
source = grsegs[chunknum];
width = picmtable[picnum].width;
height = picmtable[picnum].height;
plane = width*height;
ofs = 0;
if (y<0)
{
ofs= -y*width;
height+=y;
y=0;
}
else if (y+height>216)
{
height-=(y-216);
}
dest = ylookup[y]+x+bufferofs;
if (height<1)
return;
VW_MaskBlock(source,ofs,dest,width,height,plane);
}
void VW_DrawSprite(id0_int_t x, id0_int_t y, id0_unsigned_t chunknum)
{
spritetabletype id0_far *spr;
spritetype id0_seg *block;
id0_unsigned_t dest,shift;
spr = &spritetable[chunknum-STARTSPRITES];
block = (spritetype id0_seg *)grsegs[chunknum];
y+=spr->orgy>>G_P_SHIFT;
x+=spr->orgx>>G_P_SHIFT;
#if GRMODE == EGAGR
shift = (x&7)/2;
#endif
#if GRMODE == CGAGR
shift = 0;
#endif
dest = bufferofs + ylookup[y];
if (x>=0)
dest += x/SCREENXDIV;
else
dest += (x+1)/SCREENXDIV;
VW_MaskBlock (block,block->sourceoffset[shift],dest,
block->width[shift],spr->height,block->planesize[shift]);
}
void VW_DrawSprite(id0_int_t x, id0_int_t y, id0_unsigned_t chunknum)
{
spritetabletype id0_far *spr;
void/*spritetype*/ id0_seg *block;
id0_unsigned_t dest,shift;
spr = &spritetable[chunknum-STARTSPRITES];
block = /*(spritetype id0_seg *)*/grsegs[chunknum];
y+=spr->orgy>>G_P_SHIFT;
x+=spr->orgx>>G_P_SHIFT;
if (GRMODE == EGAGR)
shift = (x&7)/2;
else if (GRMODE == CGAGR)
shift = 0;
dest = bufferofs + ylookup[y];
if (x>=0)
dest += x/SCREENXDIV;
else
dest += (x+1)/SCREENXDIV;
VW_MaskBlock (block,VW_GetSpriteShiftSourceOffset(block,shift),dest,
VW_GetSpriteShiftWidth(block,shift),spr->height,VW_GetSpriteShiftPlaneSize(block,shift));
//VW_MaskBlock (block,block->sourceoffset[shift],dest,
// block->width[shift],spr->height,block->planesize[shift]);
}
void VWB_DrawSprite(id0_int_t x, id0_int_t y, id0_int_t chunknum)
{
spritetabletype id0_far *spr;
void/*spritetype*/ id0_seg *block;
id0_unsigned_t dest,shift,width,height;
x+=pansx;
y+=pansy;
spr = &spritetable[chunknum-STARTSPRITES];
block = /*(spritetype id0_seg *)*/grsegs[chunknum];
y+=spr->orgy>>G_P_SHIFT;
x+=spr->orgx>>G_P_SHIFT;
if (GRMODE == EGAGR)
shift = (x&7)/2;
else if (GRMODE == CGAGR)
shift = 0;
dest = bufferofs + ylookup[y];
if (x>=0)
dest += x/SCREENXDIV;
else
dest += (x+1)/SCREENXDIV;
width = VW_GetSpriteShiftWidth(block,shift)/*block->width[shift]*/;
height = spr->height;
if (VW_MarkUpdateBlock (x&SCREENXMASK,y,(x&SCREENXMASK)+width*SCREENXDIV-1
,y+height-1))
VW_MaskBlock (block,VW_GetSpriteShiftSourceOffset(block,shift)/*block->sourceoffset[shift]*/,dest,
width,height,VW_GetSpriteShiftPlaneSize(block,shift)/*block->planesize[shift]*/);
}
void VW_DrawMPic(id0_unsigned_t x, id0_unsigned_t y, id0_unsigned_t chunknum)
{
id0_int_t picnum = chunknum - STARTPICM;
memptr source;
id0_unsigned_t dest,width,height;
source = grsegs[chunknum];
dest = ylookup[y]+x+bufferofs;
width = picmtable[picnum].width;
height = picmtable[picnum].height;
VW_MaskBlock(source,0,dest,width,height,width*height);
}
void VWB_DrawMPic(id0_int_t x, id0_int_t y, id0_int_t chunknum)
{
// mostly copied from drawmpic
id0_int_t picnum = chunknum - STARTPICM;
memptr source;
id0_unsigned_t dest,width,height;
x+=pansx;
y+=pansy;
x/=SCREENXDIV;
source = grsegs[chunknum];
dest = ylookup[y]+x+bufferofs;
width = picmtable[picnum].width;
height = picmtable[picnum].height;
if (VW_MarkUpdateBlock (x*SCREENXDIV,y,(x+width)*SCREENXDIV-1,y+height-1))
VW_MaskBlock(source,0,dest,width,height,width*height);
}
void VWB_DrawSprite(id0_int_t x, id0_int_t y, id0_int_t chunknum)
{
spritetabletype id0_far *spr;
spritetype id0_seg *block;
id0_unsigned_t dest,shift,width,height;
x+=pansx;
y+=pansy;
spr = &spritetable[chunknum-STARTSPRITES];
block = (spritetype id0_seg *)grsegs[chunknum];
y+=spr->orgy>>G_P_SHIFT;
x+=spr->orgx>>G_P_SHIFT;
#if GRMODE == EGAGR
shift = (x&7)/2;
#endif
#if GRMODE == CGAGR
shift = 0;
#endif
dest = bufferofs + ylookup[y];
if (x>=0)
dest += x/SCREENXDIV;
else
dest += (x+1)/SCREENXDIV;
width = block->width[shift];
height = spr->height;
if (VW_MarkUpdateBlock (x&SCREENXMASK,y,(x&SCREENXMASK)+width*SCREENXDIV-1
,y+height-1))
VW_MaskBlock (block,block->sourceoffset[shift],dest,
width,height,block->planesize[shift]);
}
