Leaked source code of windows server 2003
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
|
|
/*============================ ==============================================;
* * Copyright (C) 1997 Microsoft Corporation. All Rights Reserved. * * File: clipper.h * Content: Clipper definitions * ***************************************************************************/#ifndef _CLIPPER_H_
#define _CLIPPER_H_
#define INTERPOLATE_COLOR (1<< 0)
#define INTERPOLATE_SPECULAR (1<< 1)
#define INTERPOLATE_TEXTUREL (1<< 2) // legacy-related texture
#define INTERPOLATE_RCOLOR (1<< 3)
#define INTERPOLATE_TEXTURE3 (1<< 4) // interpolate Texture3
#define CLIPPED_LEFT (D3DCLIP_GEN5 << 1)
#define CLIPPED_RIGHT (D3DCLIP_GEN5 << 2)
#define CLIPPED_TOP (D3DCLIP_GEN5 << 3)
#define CLIPPED_BOTTOM (D3DCLIP_GEN5 << 4)
#define CLIPPED_FRONT (D3DCLIP_GEN5 << 5)
#define CLIPPED_BACK (D3DCLIP_GEN5 << 6)
#define CLIPPED_ENABLE (D3DCLIP_GEN5 << 7) /* wireframe enable flag */
#define CLIPPED_ALL (CLIPPED_LEFT|CLIPPED_RIGHT \
|CLIPPED_TOP|CLIPPED_BOTTOM \ |CLIPPED_FRONT|CLIPPED_BACK)//---------------------------------------------------------------------
// Guard band clipping bits
//
// A guard bit is set when a point is out of guard band
// Guard bits should be cleared before a call to clip a triangle, because
// they are the same as CLIPPED_... bits
//
// Example of clipping bits setting for X coordinate:
//
// if -w < x < w no clipping bit is set
// if -w*ax1 < x <= -w D3DCLIP_LEFT bit is set
// if x < -w*ax1 __D3DCLIPGB_LEFT bit is set
//
#define __D3DCLIPGB_LEFT (D3DCLIP_GEN5 << 1)
#define __D3DCLIPGB_RIGHT (D3DCLIP_GEN5 << 2)
#define __D3DCLIPGB_TOP (D3DCLIP_GEN5 << 3)
#define __D3DCLIPGB_BOTTOM (D3DCLIP_GEN5 << 4)
#define __D3DCLIPGB_ALL (__D3DCLIPGB_LEFT | __D3DCLIPGB_RIGHT | \
__D3DCLIPGB_TOP | __D3DCLIPGB_BOTTOM)
// If only these bits are set, then this point is inside the guard band
//
#define __D3DCLIP_INGUARDBAND (D3DCLIP_LEFT | D3DCLIP_RIGHT | \
D3DCLIP_TOP | D3DCLIP_BOTTOM)
//---------------------------------------------------------------------
// Bit numbers for each clip flag
//
#define D3DCLIP_LEFTBIT 1
#define D3DCLIP_RIGHTBIT 2
#define D3DCLIP_TOPBIT 3
#define D3DCLIP_BOTTOMBIT 4
#define D3DCLIP_FRONTBIT 5
#define D3DCLIP_BACKBIT 6
#define D3DCLIPGB_LEFTBIT 13
#define D3DCLIPGB_RIGHTBIT 14
#define D3DCLIPGB_TOPBIT 15
#define D3DCLIPGB_BOTTOMBIT 16
//---------------------------------------------------------------------
// Make clip vertex from D3D vertex
//
// device - DIRECT3DDEVICEI *
// pp1 - clipVertex
// p1 - TL vertex
// clipMask is set to the guard band bits or 0xFFFFFFFFF
//
inline void MAKE_CLIP_VERTEX(D3DFE_PROCESSVERTICES *pv, ClipVertex& pp1, D3DTLVERTEX* p1, DWORD clipFlag, BOOL transformed, DWORD clipMaskOffScreen){ D3DFE_VIEWPORTCACHE& VPORT = pv->vcache; if (transformed || !(clipFlag & clipMaskOffScreen)) { pp1.sx = p1->sx; pp1.sy = p1->sy; pp1.sz = p1->sz; pp1.hw = 1.0f / p1->rhw; pp1.hx = (pp1.sx - VPORT.offsetX) * pp1.hw * VPORT.scaleXi; pp1.hy = (pp1.sy - VPORT.offsetY) * pp1.hw * VPORT.scaleYi; pp1.hz = pp1.sz * pp1.hw; } else { pp1.hx = p1->sx; pp1.hy = p1->sy; pp1.hz = p1->sz; pp1.hw = p1->rhw; } pp1.color = p1->color; pp1.specular= p1->specular; pp1.tex[0].u = p1->tu; pp1.tex[0].v = p1->tv; pp1.clip = clipFlag & D3DSTATUS_CLIPUNIONALL;}//---------------------------------------------------------------------
// Make TL vertex from clip vertex
//
// device - DIRECT3DDEVICEI *
// in - clipVertex
// out - TL vertex
//
inline void MAKE_TL_VERTEX(D3DTLVERTEX* out, ClipVertex* in){ (out)->sx = (in)->sx; (out)->sy = (in)->sy; (out)->sz = (in)->sz; (out)->rhw = D3DVAL(1)/(in)->hw; (out)->color = (in)->color; (out)->specular= (in)->specular; (out)->tu = (in)->tex[0].u; (out)->tv = (in)->tex[0].v; }//---------------------------------------------------------------------
// Make clip vertex from D3D vertex
//
// device - DIRECT3DDEVICEI *
// pp1 - clipVertex
// p1 - TL vertex
//
inline void MAKE_CLIP_VERTEX_FVF(D3DFE_PROCESSVERTICES *pv, ClipVertex& pp1, BYTE* p1, DWORD clipFlag, BOOL transformed, DWORD clipMaskOffScreen) { D3DFE_VIEWPORTCACHE& VPORT = pv->vcache; BYTE *v = (BYTE*)p1; if (transformed || !(clipFlag & clipMaskOffScreen)) { pp1.sx = ((D3DVALUE*)v)[0]; pp1.sy = ((D3DVALUE*)v)[1]; pp1.sz = ((D3DVALUE*)v)[2]; pp1.hw = 1.0f / ((D3DVALUE*)v)[3]; pp1.hx = (pp1.sx - VPORT.offsetX) * pp1.hw * VPORT.scaleXi; pp1.hy = (pp1.sy - VPORT.offsetY) * pp1.hw * VPORT.scaleYi; pp1.hz = pp1.sz * pp1.hw; } else { pp1.hx = ((D3DVALUE*)v)[0]; pp1.hy = ((D3DVALUE*)v)[1]; pp1.hz = ((D3DVALUE*)v)[2]; pp1.hw = ((D3DVALUE*)v)[3]; } v += sizeof(D3DVALUE) * 4; if (pv->dwVIDOut & D3DFVF_DIFFUSE) { pp1.color = *(DWORD*)v; v += sizeof(D3DVALUE); } if (pv->dwVIDOut & D3DFVF_SPECULAR) { pp1.specular= *(DWORD*)v; v += sizeof(DWORD); } for (DWORD ii=0; ii < pv->nTexCoord; ii++) { pp1.tex[ii].u = *(D3DVALUE*)v; v += sizeof(D3DVALUE); pp1.tex[ii].v = *(D3DVALUE*)v; v += sizeof(D3DVALUE); } pp1.clip = clipFlag; // & D3DSTATUS_CLIPUNIONALL;
}//---------------------------------------------------------------------
// Make TL vertex from clip vertex
//
// device - DIRECT3DDEVICEI *
// in - clipVertex
// out - TL vertex
//
inline void MAKE_TL_VERTEX_FVF(D3DFE_PROCESSVERTICES *pv, BYTE* out, ClipVertex* in){ BYTE *v = out; ((D3DVALUE*)v)[0] = (in)->sx; ((D3DVALUE*)v)[1] = (in)->sy; ((D3DVALUE*)v)[2] = (in)->sz; ((D3DVALUE*)v)[3] = D3DVAL(1)/(in)->hw; v += sizeof(D3DVALUE)*4; if (pv->dwVIDOut & D3DFVF_DIFFUSE) { *(DWORD*)v = (in)->color; v += sizeof(DWORD); } if (pv->dwVIDOut & D3DFVF_SPECULAR) { *(DWORD*)v = (in)->specular; v += sizeof(DWORD); } for (DWORD ii=0; ii < pv->nTexCoord; ii++) { *(D3DVALUE*)v = (in)->tex[ii].u; v += sizeof(D3DVALUE); *(D3DVALUE*)v = (in)->tex[ii].v; v += sizeof(D3DVALUE); } }#endif // _CLIPPER_H_
|
