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831 lines
37 KiB
831 lines
37 KiB
/*==========================================================================;
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*
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* Copyright (C) 1997 Microsoft Corporation. All Rights Reserved.
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*
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* File: d3dfe.hpp
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* Content: Direct3D internal include file
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* for geometry pipeline implementations
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*
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***************************************************************************/
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#ifndef _D3DFE_H
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#include "d3d.h"
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#include "lists.hpp"
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#include "d3dmem.h"
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#include "d3ditype.h"
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//---------------------------------------------------------------------
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// The CSetD3DFPstate is used to facilitate the changing of FPU settings.
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// In the constructor the optimal FPU state is set. In the destructor the
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// old state is restored.
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//
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class CD3DFPstate
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{
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public:
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CD3DFPstate()
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{
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#ifdef _X86_
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WORD wTemp, wSave;
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wSavedFP = FALSE;
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// Disable floating point exceptions and go to single mode
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__asm fstcw wSave
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if (wSave & 0x300 || // Not single mode
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0x3f != (wSave & 0x3f) || // Exceptions enabled
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wSave & 0xC00) // Not round to nearest mode
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{
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__asm {
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mov ax, wSave
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and ax, not 300h ;; single mode
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or ax, 3fh ;; disable all exceptions
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and ax, not 0xC00 ;; round to nearest mode
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mov wTemp, ax
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fldcw wTemp
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}
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wSavedFP = TRUE;
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}
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wSaveFP = wSave;
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#endif
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}
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~CD3DFPstate()
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{
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#ifdef _X86_
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WORD wSave = wSaveFP;
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if (wSavedFP)
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__asm {
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fnclex
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fldcw wSave
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}
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#endif
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}
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protected:
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#ifdef _X86_
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WORD wSaveFP;
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WORD wSavedFP; // WORD-sized to make the data an even DWORD
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#endif
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};
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#define RESPATH_D3D "Software\\Microsoft\\Direct3D"
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// this is not available for alpha or IA64
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#ifndef LONG_MAX
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#define LONG_MAX 2147483647L /* maximum (signed) long value */
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#endif
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//--------------------------------------------------------------------
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// Base definitions
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//
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// Default color values that should be used when ther is no lighting and
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// color in vertices provided
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const DWORD __DEFAULT_DIFFUSE = 0xFFFFFFFF;
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const DWORD __DEFAULT_SPECULAR = 0;
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const DWORD VER_IN_BATCH = 8; // Size of Microsoft's internal clip vertex batch
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typedef WORD D3DFE_CLIPCODE;
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struct BATCHBUFFER;
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//---------------------------------------------------------------------
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struct _D3DFE_LIGHTING;
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typedef struct _D3DFE_LIGHTING D3DFE_LIGHTING;
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struct _D3DI_LIGHT;
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typedef struct _D3DI_LIGHT D3DI_LIGHT;
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class D3DFE_PROCESSVERTICES;
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typedef class D3DFE_PROCESSVERTICES* LPD3DFE_PROCESSVERTICES;
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extern "C"
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{
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typedef void (*LIGHT_VERTEX_FUNC)(LPD3DFE_PROCESSVERTICES pv,
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D3DI_LIGHT *light,
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D3DVERTEX *pInpCoord,
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D3DVECTOR *pInpNormal,
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D3DLIGHTINGELEMENT *pEyeSpaceData);
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typedef void (*PFN_LIGHTLOOP)(LPD3DFE_PROCESSVERTICES pv,
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DWORD dwVerCount,
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BATCHBUFFER *pBatchBuffer,
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D3DI_LIGHT *light,
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D3DVERTEX *in,
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D3DVECTOR *pNormal,
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DWORD *pDiffuse,
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DWORD *pSpecular);
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}
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//---------------------------------------------------------------------
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// "link" member should be the last, because we copy the structure using
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// offsetof(D3DMATRIXI, link)
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//
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typedef struct _D3DMATRIXI
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{
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D3DVALUE _11, _12, _13, _14;
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D3DVALUE _21, _22, _23, _24;
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D3DVALUE _31, _32, _33, _34;
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D3DVALUE _41, _42, _43, _44;
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} D3DMATRIXI, *LPD3DMATRIXI;
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//---------------------------------------------------------------------
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// This is per texture stage data
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//
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typedef struct _D3DFE_TEXTURESTAGE
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{
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DWORD dwInpCoordIndex; // Original value of the texture stage - input index
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DWORD dwInpOffset; // Texture coord offset in the FVF vertex
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DWORD dwOutCoordIndex; // Input index of the texture set is mapped to this
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// output index
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DWORD dwOrgStage; // Original texture stage
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DWORD dwOrgWrapMode; // Original WRAP mode
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D3DMATRIXI *pmTextureTransform; // NULL if texture transform is disabled for the stage
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// Bits 0-1 - (number of input texture coordinates - 1)
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// Bits 2-3 - (number of output texture coordinates - 1)
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DWORD dwTexTransformFuncIndex;
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DWORD dwTexGenMode; // Mode of texture generation
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} D3DFE_TEXTURESTAGE, *LPD3DFE_TEXTURESTAGE;
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//---------------------------------------------------------------------
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typedef struct _RECTV
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{
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union
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{
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D3DVALUE x1;
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D3DVALUE dvX1;
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};
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union
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{
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D3DVALUE y1;
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D3DVALUE dvY1;
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};
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union
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{
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D3DVALUE x2;
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D3DVALUE dvX2;
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};
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union
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{
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D3DVALUE y2;
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D3DVALUE dvY2;
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};
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} D3DRECTV, *LPD3DRECTV;
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//---------------------------------------------------------------------
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/*
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* Lighting defines
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*/
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typedef struct _SpecularTable
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{
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LIST_MEMBER(_SpecularTable) list;
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float power; /* shininess power */
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float table[260]; /* space for overflows */
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} SpecularTable;
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typedef struct {D3DVALUE r,g,b;} D3DFE_COLOR;
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//---------------------------------------------------------------------
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// Internal version of lightdata and constants for "flags" member of D3DI_LIGHT
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//
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const DWORD D3DLIGHTI_ATT0_IS_NONZERO = 1 << 0;
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const DWORD D3DLIGHTI_ATT1_IS_NONZERO = 1 << 1;
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const DWORD D3DLIGHTI_ATT2_IS_NONZERO = 1 << 2;
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const DWORD D3DLIGHTI_LINEAR_FALLOFF = 1 << 3;
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// Set when light data is changed
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const DWORD D3DLIGHTI_DIRTY = 1 << 4;
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// This flag depends on D3DRENDERSTATE_SPACULARENABLE and light specular color
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const DWORD D3DLIGHTI_COMPUTE_SPECULAR = 1 << 5;
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// Set when light data is set
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const DWORD D3DLIGHTI_VALID = 1 << 6;
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// Set when the light is enabled
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const DWORD D3DLIGHTI_ENABLED = 1 << 7;
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const DWORD D3DLIGHTI_SPECULAR_IS_ZERO = 1 << 8;
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const DWORD D3DLIGHTI_AMBIENT_IS_ZERO = 1 << 9;
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const DWORD D3DLIGHTI_OPTIMIZATIONFLAGS = D3DLIGHTI_SPECULAR_IS_ZERO |
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D3DLIGHTI_AMBIENT_IS_ZERO |
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D3DLIGHTI_ATT0_IS_NONZERO |
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D3DLIGHTI_ATT1_IS_NONZERO |
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D3DLIGHTI_ATT2_IS_NONZERO |
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D3DLIGHTI_LINEAR_FALLOFF;
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//--------------------------------------------------------------------
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// Members of this structure should be aligned as stated
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typedef struct _D3DI_LIGHT
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{
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// Should be QWORD aligned
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D3DVECTOR model_position; // In the camera or model space
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D3DLIGHTTYPE type;
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// Should be QWORD aligned
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D3DVECTOR model_direction;// In the camera or model space
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D3DVALUE falloff;
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// Should be QWORD aligned
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DWORD flags;
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// Should be QWORD aligned. R,G,B should be adjacent
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D3DFE_COLOR diffuseMat; // Material diffuse times light color
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// Should be QWORD aligned. R,G,B should be adjacent
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D3DFE_COLOR specularMat; // Material specular times light color
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// Should be QWORD aligned. R,G,B should be adjacent
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D3DFE_COLOR ambientMat; // Material specular times light color
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D3DVALUE inv_theta_minus_phi;
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// Should be QWORD aligned
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D3DVECTOR halfway; // Used by directional, parallel-point and
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// spot lights when camera is in infinity
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struct _D3DI_LIGHT *next; // Next in the active light list
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// Should be QWORD aligned
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D3DFE_COLOR diffuse; // Original color scaled to 0 - 255
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D3DFE_COLOR specular; // Original color scaled to 0 - 255
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D3DFE_COLOR ambient; // Original color scaled to 0 - 255
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LIGHT_VERTEX_FUNC lightVertexFunc; // Function to light a D3DVERTEX
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D3DVALUE range_squared;
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D3DVALUE attenuation0;
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D3DVALUE attenuation1;
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D3DVALUE attenuation2;
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D3DVALUE cos_theta_by_2;
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D3DVALUE cos_phi_by_2;
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D3DVECTOR position; // In the world space
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D3DVECTOR direction; // In the world space
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D3DVALUE range;
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LPVOID pPSGPData; // Pointer to a PSGP specific "per light" data
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// Microsoft's pipeline specific data
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PFN_LIGHTLOOP pfnLightFirst; // Used in multi-loop pipeline for first lights
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PFN_LIGHTLOOP pfnLightNext; // Used in multi-loop pipeline for not first lights
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} D3DI_LIGHT, *LPD3DI_LIGHT;
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//---------------------------------------------------------------------
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// Bits for lighting flags (dwLightingFlags
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//
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const DWORD __LIGHT_VERTEXTRANSFORMED = 1; // Vertex is in the camera space
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const DWORD __LIGHT_NORMALTRANSFORMED = 2; // Normal is in the camera space
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const DWORD __LIGHT_SPECULARCOMPUTED = 4;
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const DWORD __LIGHT_DIFFUSECOMPUTED = 8;
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//---------------------------------------------------------------------
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// Members of this structure should be aligned as stated
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//
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typedef struct _D3DFE_LIGHTING
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{
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// Temporary data used when computing lighting
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// Should be QWORD aligned
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D3DFE_COLOR diffuse;
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DWORD alpha; // Alpha to use for output vertex color
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// (could be overriden by vertex difuse
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// color) (0-255) shifted left by 24 bits
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// Should be QWORD aligned
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D3DFE_COLOR diffuse0; // Ca*Cma + Cme
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float *currentSpecTable;
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// Should be QWORD aligned
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D3DFE_COLOR specular;
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DWORD outDiffuse; // Result of lighting
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// Should be QWORD aligned
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D3DVECTOR model_eye; // camera position in model or camera space
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DWORD vertexAmbient; // Provided with a vertex
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// Should be QWORD aligned
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D3DFE_COLOR ambientSceneScaled; // Scene ambient color (scaled 0.0-255.0)
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DWORD vertexDiffuse; // Provided with a vertex
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// Should be QWORD aligned
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D3DFE_COLOR ambientScene; // Scene ambient color (0.0-1.0)
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DWORD outSpecular; // Result of lighting
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// Should be QWORD aligned
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D3DVECTOR directionToCamera; // Direction to camera in the model space
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// Used in model space lighting
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DWORD vertexSpecular; // Provided with a vertex
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// Should be QWORD aligned
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D3DMATERIAL7 material;
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DWORD dwLightingFlags;
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DWORD alphaSpecular; // Alpha to use for output specular vertex color
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// (could be overriden by vertex specular
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// color) (0-255) shifted left by 24 bits
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// End of temporary data
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D3DI_LIGHT *activeLights;
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int fog_mode;
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D3DVALUE fog_density;
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D3DVALUE fog_start;
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D3DVALUE fog_end;
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D3DVALUE fog_factor; // 255 / (fog_end - fog_start)
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D3DVALUE specThreshold; // If a dot product less than this value,
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// specular factor is zero
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DWORD ambient_save; // Original unscaled color
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int materialAlpha; // Current material diffuse alpha (0-255)
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// shifted left by 24 bits
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int materialAlphaS; // Current material specular alpha (0-255)
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// shifted left by 24 bits
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DWORD dwDiffuse0; // Packed diffuse0
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DWORD dwAmbientSrcIndex; // 0 - diffuse, 1 - specular
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DWORD dwDiffuseSrcIndex; // 0 - diffuse, 1 - specular
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DWORD dwSpecularSrcIndex; // 0 - diffuse, 1 - specular
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DWORD dwEmissiveSrcIndex; // 0 - diffuse, 1 - specular
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} D3DFE_LIGHTING;
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//---------------------------------------------------------------------
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// Some data precomputed for a current viewport
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// ATTENTION: If you want to add or re-arrange data, contact IOURIT or ANUJG
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//
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typedef struct _D3DFE_VIEWPORTCACHE
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{
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// Coefficients to compute screen coordinates from normalized window
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// coordinates
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D3DVALUE scaleX; // dvWidth
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D3DVALUE scaleY; // -dvHeight
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D3DVALUE offsetX; // dvX
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D3DVALUE offsetY; // dvY + dvHeight
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D3DVALUE scaleZ; // dvMaxZ - dvMinZ
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D3DVALUE offsetZ; // dvY + dvHeight
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// Min and max window values with gaurd band in pixels
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D3DVALUE minXgb;
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D3DVALUE minYgb;
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D3DVALUE maxXgb;
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D3DVALUE maxYgb;
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// Min and max values for viewport window in pixels
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D3DVALUE minX; // offsetX - scaleX
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D3DVALUE minY; // offsetY - scaleY
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D3DVALUE maxX; // offsetX + scaleX
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D3DVALUE maxY; // offsetY + scaleY
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// Coefficients to transform a vertex to perform the guard band clipping
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// x*gb11 + w*gb41
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// y*gb22 + w*gb42
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//
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D3DVALUE gb11;
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D3DVALUE gb22;
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D3DVALUE gb41;
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D3DVALUE gb42;
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// Coefficients to apply clipping rules for the guard band clipping
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// They are used by clipping routins
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// w*Kgbx1 < x < w*Kgbx2
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// w*Kgby1 < y < w*Kgby2
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//
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D3DVALUE Kgbx1;
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D3DVALUE Kgby1;
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D3DVALUE Kgbx2;
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D3DVALUE Kgby2;
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D3DVALUE dvX; // dwX
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D3DVALUE dvY; // dwY
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D3DVALUE dvWidth; // dwWidth
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D3DVALUE dvHeight; // dwHeight
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// Coefficients to compute screen coordinates from normalized window
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// coordinates
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D3DVALUE scaleXi; // Inverse of scaleX
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D3DVALUE scaleYi; // Inverse of scaleY
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D3DVALUE scaleZi; // Inverse of scaleZ
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// Min and max values for viewport window in pixels (integer version)
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int minXi; // offsetX - scaleX
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int minYi; // offsetY - scaleY
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int maxXi; // offsetX + scaleX
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int maxYi; // offsetY + scaleY
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} D3DFE_VIEWPORTCACHE;
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//---------------------------------------------------------------------
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// Process vertices interface
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//
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// Bits for process vertices flags
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// 8 bits are reserved for Draw Primitive flags
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//
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// D3DDEV_STRIDE D3DPV_SOA
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// 0 1 position.dwStride = number of vertices in SOA
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// 0 0 position.dwStride = contiguous vertex size
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// 1 0 vertex is not contiguous, all dwStride fields are used
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// 1 1 reserved
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// 1 1 reserved
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//
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const DWORD D3DPV_FOG = 1 << 8; // Need to apply fog
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const DWORD D3DPV_DOCOLORVERTEX = 1 << 9; // Need to apply color vertex
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const DWORD D3DPV_LIGHTING = 1 << 10; // Need to apply lighting
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const DWORD D3DPV_SOA = 1 << 12; // SOA structure is used
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const DWORD D3DPV_COLORVERTEX_E = 1 << 13; // Need to replace emissive material color
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const DWORD D3DPV_COLORVERTEX_D = 1 << 14; // Need to replace diffuse material color
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const DWORD D3DPV_COLORVERTEX_S = 1 << 15; // Need to replace specular material color
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const DWORD D3DPV_COLORVERTEX_A = 1 << 16; // Need to replace ambient material color
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// Set by ProcessVertices call with D3DPV_DONOTCOPYDATA flag set
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// Specular color should not be copied to the output vertex
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const DWORD D3DPV_DONOTCOPYSPECULAR = 1 << 20;
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// Set when one pass clipping and vertex processing is used
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const DWORD D3DPV_ONEPASSCLIPPING= 1 << 21;
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const DWORD D3DPV_RESERVED1 = 1 << 22;
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const DWORD D3DPV_RESERVED2 = 1 << 23;
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const DWORD D3DPV_RESERVED3 = 1 << 24;
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// This indicates that the primitive is non clipped, but we pretend that it is
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// clipped to generate DP2HAL inline primitive. Can only be set by tri fan.
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const DWORD D3DPV_NONCLIPPED = 1 << 25;
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// Propagated from dwFEFlags
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const DWORD D3DPV_FRUSTUMPLANES_DIRTY = 1 << 26;
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// Set if the geometry loop is called from VertexBuffer::ProcessVertices.
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// Processing is different because the output buffer FVF format is defined by
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// user, not by SetupFVFData function.
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const DWORD D3DPV_VBCALL = 1 << 27;
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// Set by ProcessVertices call with D3DPV_DONOTCOPYDATA flag set
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// Texture coordinates should not be copied to the output vertex
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const DWORD D3DPV_DONOTCOPYTEXTURE = 1 << 28;
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// To mark whether we are doing TLVERTEX clipping or not
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const DWORD D3DPV_TLVCLIP = 1 << 29;
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// Mictosoft internal !!! Set when only transformation is required
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// (no lightng or texture copy)
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const DWORD D3DPV_TRANSFORMONLY = 1 << 30;
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// Set by ProcessVertices call with D3DPV_DONOTCOPYDATA flag set
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// Diffuse color should not be copied to the output vertex
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const DWORD D3DPV_DONOTCOPYDIFFUSE = 1 << 31;
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// These flags persist from call to call till something cuses them to change
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const DWORD D3DPV_PERSIST = D3DPV_FOG |
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D3DPV_LIGHTING |
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D3DPV_DONOTCOPYDIFFUSE |
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D3DPV_DONOTCOPYSPECULAR |
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D3DPV_DONOTCOPYTEXTURE |
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D3DPV_TRANSFORMONLY |
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D3DPV_TLVCLIP ;
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// Bits for dwDeviceFlags
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//
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const DWORD D3DDEV_GUARDBAND = 1 << 1; // Use guard band clipping
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const DWORD D3DDEV_RANGEBASEDFOG = 1 << 2; // Set if range based fog is enabled
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// This bit is set if fog mode is not FOG_NONE and fog is enabled
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const DWORD D3DDEV_FOG = 1 << 3;
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const DWORD D3DDEV_FVF = 1 << 4; // FVF supported
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const DWORD D3DDEV_DONOTSTRIPELEMENTS = 1 << 6; // Copy of D3DFVFCAPS_DONOTSTRIPELEMENTS
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// These are bits in dwDeviceFlags that could be changed, but not
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// necessary per every primitive.
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//
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// Set when D3DRENDERSTATE_SPECULARENABLE is TRUE
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const DWORD D3DDEV_SPECULARENABLE = 1 << 11;
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// Set if diffuse color should be interpolated during clipping
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const DWORD D3DDEV_INTERPOLATE_COLOR = 1 << 12;
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// Set if specular color should be interpolated during clipping
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const DWORD D3DDEV_INTERPOLATE_SPECULAR = 1 << 13;
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// This flag is for PSGP only. PSGP implementation should clear the flag
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const DWORD D3DDEV_FRUSTUMPLANES_DIRTY = 1 << 14;
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// This flag is for PSGP only. PSGP implementation should clear the flag
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const DWORD D3DDEV_TEXTRANSFORMDIRTY = 1 << 15; // Need to re-evaluate texture transforms
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// The flag is set when the number of output texture coord is greater then the
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// number of the input ones. This could happen when the same texture transform
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// matrix is used with the same input texture coord set. In this case we save
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// texture indices from the texture stages in the textureStages and map all
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// indices sequentially.
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const DWORD D3DDEV_REMAPTEXTUREINDICES = 1 << 16;
|
|
|
|
// These two flags are for PSGP only. PSGP implementation should clear the flags
|
|
const DWORD D3DDEV_TRANSFORMDIRTY = 1 << 17; // Transform matrix has been changed
|
|
const DWORD D3DDEV_LIGHTSDIRTY = 1 << 18; // Lights have been changed
|
|
|
|
const DWORD D3DDEV_DONOTCLIP = 1 << 19; // Clipping is disabled
|
|
const DWORD D3DDEV_DONOTUPDATEEXTENTS = 1 << 20; // Extents computation is disabled
|
|
// Set, if driver does not support FVF and there is no texture coordinates in
|
|
// the vertex
|
|
const DWORD D3DDEV_NOFVFANDNOTEXTURE = 1 << 21;
|
|
// This flag is set if the current TLVbuf is write only
|
|
const DWORD D3DDEV_TLVBUFWRITEONLY = 1 << 22;
|
|
// World-view matrix does not have scale, so we can do lighting
|
|
// in the model space
|
|
const DWORD D3DDEV_MODELSPACELIGHTING = 1 << 23;
|
|
// Set if viewer is local (used for lighting)
|
|
const DWORD D3DDEV_LOCALVIEWER = 1 << 24;
|
|
// Set if we wave to normalize normals after transforming them to the camera space
|
|
const DWORD D3DDEV_NORMALIZENORMALS = 1 << 25;
|
|
// Set if we wave to do texture transform
|
|
const DWORD D3DDEV_TEXTURETRANSFORM = 1 << 26;
|
|
// Set if the last draw primitive call was strided
|
|
const DWORD D3DDEV_STRIDE = 1 << 27;
|
|
// Set if D3DRENDERSTATE_COLORVERTEX is TRUE
|
|
const DWORD D3DDEV_COLORVERTEX = 1 << 28;
|
|
// Set if position in camera space is always needed
|
|
const DWORD D3DDEV_POSITIONINCAMERASPACE= 1 << 29;
|
|
// Set if normal in camera space is always needed
|
|
const DWORD D3DDEV_NORMALINCAMERASPACE = 1 << 30;
|
|
// Set if D3DRENDERSTATE_LIGHTING is set
|
|
const DWORD D3DDEV_LIGHTING = 1 << 31;
|
|
//--------------------------------------------------------------------
|
|
// Clipper defines
|
|
//
|
|
|
|
// Six standard clipping planes plus six user defined clipping planes.
|
|
// See rl\d3d\d3d\d3dtypes.h.
|
|
//
|
|
|
|
#define MAX_CLIPPING_PLANES 12
|
|
|
|
// Space for vertices generated/copied while clipping one triangle
|
|
|
|
#define MAX_CLIP_VERTICES (( 2 * MAX_CLIPPING_PLANES ) + 3 )
|
|
|
|
// 3 verts. -> 1 tri, 4 v -> 2 t, N vertices -> (N - 2) triangles
|
|
|
|
#define MAX_CLIP_TRIANGLES ( MAX_CLIP_VERTICES - 2 )
|
|
|
|
const DWORD MAX_FVF_TEXCOORD = 8;
|
|
|
|
class ClipVertex
|
|
{
|
|
public:
|
|
D3DVALUE hx; // Clipping space coordinates. Must be in this order
|
|
D3DVALUE hy;
|
|
D3DVALUE hz;
|
|
D3DVALUE hw;
|
|
int clip;
|
|
D3DCOLOR color;
|
|
D3DCOLOR specular;
|
|
D3DVALUE sx; // Screen space coordinates. Must be in this order
|
|
D3DVALUE sy;
|
|
D3DVALUE sz;
|
|
D3DVALUE rhw;
|
|
ClipVertex *next;
|
|
D3DVALUE tex[MAX_FVF_TEXCOORD*4];
|
|
};
|
|
|
|
typedef struct _ClipTriangle
|
|
{
|
|
ClipVertex *v[3];
|
|
} ClipTriangle;
|
|
|
|
typedef struct _D3DI_CLIPSTATE
|
|
{
|
|
ClipVertex *clip_vbuf1[MAX_CLIP_VERTICES];
|
|
ClipVertex *clip_vbuf2[MAX_CLIP_VERTICES];
|
|
ClipVertex **current_vbuf; // clip_vbuf1 or clip_vbuf2
|
|
ClipVertex clip_vertices[MAX_CLIP_VERTICES];
|
|
CBufferDDS clipBuf; // Used for TL vertices, generated by the clipper
|
|
CBufferDDS clipBufPrim; // Used for primitives, generated by the clipper
|
|
// for execute buffers
|
|
int clip_vertices_used;
|
|
DWORD clip_color;
|
|
DWORD clip_specular;
|
|
LPDIRECTDRAWSURFACE lpDDExeBuf; // Current user execute buffer
|
|
LPVOID lpvExeBufMem; // Current memory for user execute buffer
|
|
} D3DI_CLIPSTATE, *LPD3DI_CLIPSTATE;
|
|
|
|
// These bit are set when a vertex is clipped by a frustum plane
|
|
|
|
#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 */
|
|
|
|
// These bit are set when a vertex is clipped by a user clipping plane
|
|
|
|
const DWORD CLIPPED_GEN0 = D3DCLIP_GEN5 << 8;
|
|
const DWORD CLIPPED_GEN1 = D3DCLIP_GEN5 << 9;
|
|
const DWORD CLIPPED_GEN2 = D3DCLIP_GEN5 << 10;
|
|
const DWORD CLIPPED_GEN3 = D3DCLIP_GEN5 << 11;
|
|
const DWORD CLIPPED_GEN4 = D3DCLIP_GEN5 << 12;
|
|
const DWORD CLIPPED_GEN5 = D3DCLIP_GEN5 << 13;
|
|
|
|
// 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)
|
|
|
|
const DWORD __D3DCLIP_USERPLANES = D3DCLIP_GEN0 | D3DCLIP_GEN1 | D3DCLIP_GEN2 |
|
|
D3DCLIP_GEN3 | D3DCLIP_GEN4 | D3DCLIP_GEN5;
|
|
// 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)
|
|
|
|
//---------------------------------------------------------------------
|
|
// Bits in the dwFlags2
|
|
//
|
|
// The bit is set when the texture transform is enabled
|
|
const DWORD __FLAGS2_TEXTRANSFORM0 = 1 << 0;
|
|
const DWORD __FLAGS2_TEXTRANSFORM1 = 1 << 1;
|
|
const DWORD __FLAGS2_TEXTRANSFORM2 = 1 << 2;
|
|
const DWORD __FLAGS2_TEXTRANSFORM3 = 1 << 3;
|
|
const DWORD __FLAGS2_TEXTRANSFORM4 = 1 << 4;
|
|
const DWORD __FLAGS2_TEXTRANSFORM5 = 1 << 5;
|
|
const DWORD __FLAGS2_TEXTRANSFORM6 = 1 << 6;
|
|
const DWORD __FLAGS2_TEXTRANSFORM7 = 1 << 7;
|
|
|
|
const DWORD __FLAGS2_TEXTRANSFORM = __FLAGS2_TEXTRANSFORM0 |
|
|
__FLAGS2_TEXTRANSFORM1 |
|
|
__FLAGS2_TEXTRANSFORM2 |
|
|
__FLAGS2_TEXTRANSFORM3 |
|
|
__FLAGS2_TEXTRANSFORM4 |
|
|
__FLAGS2_TEXTRANSFORM5 |
|
|
__FLAGS2_TEXTRANSFORM6 |
|
|
__FLAGS2_TEXTRANSFORM7;
|
|
// The bit is set when the texture coordinate set is taken from the vertex data
|
|
// (position or normal)
|
|
const DWORD __FLAGS2_TEXGEN0 = 1 << 16;
|
|
const DWORD __FLAGS2_TEXGEN1 = 1 << 17;
|
|
const DWORD __FLAGS2_TEXGEN2 = 1 << 18;
|
|
const DWORD __FLAGS2_TEXGEN3 = 1 << 19;
|
|
const DWORD __FLAGS2_TEXGEN4 = 1 << 20;
|
|
const DWORD __FLAGS2_TEXGEN5 = 1 << 21;
|
|
const DWORD __FLAGS2_TEXGEN6 = 1 << 22;
|
|
const DWORD __FLAGS2_TEXGEN7 = 1 << 23;
|
|
|
|
const DWORD __FLAGS2_TEXGEN = __FLAGS2_TEXGEN0 |
|
|
__FLAGS2_TEXGEN1 |
|
|
__FLAGS2_TEXGEN2 |
|
|
__FLAGS2_TEXGEN3 |
|
|
__FLAGS2_TEXGEN4 |
|
|
__FLAGS2_TEXGEN5 |
|
|
__FLAGS2_TEXGEN6 |
|
|
__FLAGS2_TEXGEN7;
|
|
//---------------------------------------------------------------------
|
|
#define __TEXTURETRANSFORMENABLED(pv) pv->dwFlags2 & __FLAGS2_TEXTRANSFORM
|
|
|
|
const DWORD __MAXUSERCLIPPLANES = 6;
|
|
//---------------------------------------------------------------------
|
|
// Visible states, input and output data
|
|
//
|
|
class D3DFE_PROCESSVERTICES
|
|
{
|
|
public:
|
|
D3DFE_PROCESSVERTICES();
|
|
virtual HRESULT SetRenderStateI(D3DRENDERSTATETYPE, DWORD) = 0;
|
|
// State
|
|
// Should be QWORD aligned
|
|
D3DMATRIXI mTexture[D3DDP_MAXTEXCOORD]; // Texture transform;
|
|
D3DMATRIXI mCTM2[3];
|
|
D3DMATRIXI mWV2[3];
|
|
D3DMATRIXI mWVI2[3];
|
|
D3DMATRIXI mWV; // Transforms to camera space (Mworld*Mview)
|
|
D3DMATRIXI mWVI; // Inverse mWV
|
|
D3DMATRIXI mCTM; // Current Transformation Matrix
|
|
// supported by driver
|
|
// Should be QWORD aligned
|
|
D3DFE_LIGHTING lighting; // Lighting state
|
|
// Should be QWORD aligned
|
|
D3DFE_VIEWPORTCACHE vcache; // Data, computed fromto viewport settings
|
|
DWORD dwClipUnion; // OR of all vertex clip flags
|
|
DWORD dwClipIntersection; // AND of all vertex clip flags
|
|
DWORD dwTextureIndexToCopy; // Used for not FVF devices. Used by PSGP
|
|
D3DVALUE dvExtentsAdjust; // Replicated here from device caps
|
|
|
|
// Current texture stage vector
|
|
LPVOID *pD3DMappedTexI;
|
|
D3DI_CLIPSTATE ClipperState; // State for triangle/line clipper
|
|
union {
|
|
D3DDP_PTRSTRIDE normal;
|
|
DWORD dwSOAStartVertex;
|
|
};
|
|
D3DDP_PTRSTRIDE diffuse;
|
|
// Cache line should start here
|
|
D3DPRIMITIVETYPE primType;
|
|
DWORD dwNumVertices; // Number of vertices to process
|
|
DWORD dwFlags; // Flags word describing what to do
|
|
// Location of the first vertex in the vertex buffer (DP2 DDI)
|
|
// ATTENTION May be we can get rid of it?
|
|
DWORD dwVertexBase;
|
|
DWORD dwNumIndices; // 0 for non-indexed primitive
|
|
LPWORD lpwIndices;
|
|
DWORD dwNumPrimitives;
|
|
DWORD dwDP2VertexCount; // Number of vertices in DP2 vertex buffer
|
|
// Internal data for Microsoft implementation
|
|
|
|
// Cache line should start here
|
|
DWORD dwVIDIn; // Vertex ID of input vertices
|
|
DWORD dwDeviceFlags; // Flags that are constant per device
|
|
// D3DPV_.. and primitive flags are combined
|
|
DWORD dwOutputSize; // Output vertex size
|
|
DWORD dwFEFlags; // MS internal use Only!!
|
|
DWORD dwVIDOut; // Vertex ID of output vertices
|
|
LPVOID lpvOut; // Output pointer (output always packed)
|
|
|
|
DWORD dwVertexPoolSize; // Size of vertices in the un-clipped part of a primitive
|
|
// in bytes, put to the DP2 vertex buffer
|
|
// Internal data for Microsoft implementation
|
|
union {
|
|
D3DDP_PTRSTRIDE position; // dwStride should always be set !!!
|
|
D3DDP_PTRSTRIDE SOA;
|
|
};
|
|
D3DFE_CLIPCODE* lpClipFlags; // Clip flags to output
|
|
DWORD nTexCoord; // Number of the input texture coordinate sets
|
|
DWORD nOutTexCoord; // Number of the output texture coordinate sets to process.
|
|
// WARNING. It could be different from the texture count in dwVIDOut
|
|
// (it could be zero for example when dwVIDOut has 1 texture coord set).
|
|
// If D3DDEV_REMAPTEXTUREINDICES is set this is equal
|
|
// to the number of active texture stages
|
|
// Total size of all output texture coordinates in bytes
|
|
DWORD dwTextureCoordSizeTotal;
|
|
D3DDP_PTRSTRIDE specular;
|
|
D3DDP_PTRSTRIDE textures[D3DDP_MAXTEXCOORD];
|
|
// Size of output texture coordinate sets in bytes
|
|
DWORD dwTextureCoordSize[D3DDP_MAXTEXCOORD];
|
|
// Size of input texture coordinate sets in bytes
|
|
DWORD dwInpTextureCoordSize[D3DDP_MAXTEXCOORD];
|
|
// Output
|
|
LPDWORD lpdwRStates; // Current render state vector
|
|
D3DRECTV rExtents; // Extents rectangle to update, if required
|
|
D3DFE_TEXTURESTAGE textureStage[D3DDP_MAXTEXCOORD]; // Texture state stages
|
|
DWORD dwNumTextureStages; // Used when we have to re-map texture indices
|
|
// This array is used when we do not do re-mapping of texture coordinates
|
|
D3DMATRIXI *pmTexture[D3DDP_MAXTEXCOORD];
|
|
D3DVECTORH userClipPlane[__MAXUSERCLIPPLANES];
|
|
DWORD dwFlags2; // Low 8 bits are texture transform enable:
|
|
// bit 0 corresponds to the texture stage 0
|
|
// Bits 8-15 are for user clipping plane
|
|
// Bits 16-23 are set if corresponding texture coord set
|
|
// is taken from the vertex data (position or normal)
|
|
DWORD dwNumVerBlends; // Number of weights for vertex blending
|
|
DWORD dwMaxUserClipPlanes;
|
|
virtual HRESULT DrawPrim()=0; // Use to pass non-indexed primitives to the driver
|
|
virtual HRESULT DrawIndexPrim()=0; // Use to pass indexed primitives to driver
|
|
virtual HRESULT DrawClippedPrim()=0; // Use to pass clipped non-indexed primitives to driver
|
|
// Internal data for Microsoft implementation
|
|
DWORD texOffset; // Offsets in the input FVF vertex. Recomputed
|
|
DWORD normalOffset; // when FVF is changed.
|
|
DWORD diffuseOffset; //
|
|
DWORD specularOffset;
|
|
DWORD texOffsetOut; // Offsets in the output FVF vertex. Recomputed
|
|
DWORD diffuseOffsetOut; // when FVF is changed.
|
|
DWORD specularOffsetOut;
|
|
DWORD dwClipMaskOffScreen; // When and this mask with the clip code we
|
|
// have bits that are outside the guard band
|
|
ClipVertex clipVer[VER_IN_BATCH]; // Clip vertices. Used in processing
|
|
// and clipping in the one loop
|
|
DWORD dwFirstClippedVertex; // Index of the first vertex with non-zero clip code
|
|
DWORD dwMaxTextureIndices; // Max number of texture coord sets
|
|
};
|
|
//---------------------------------------------------------------------
|
|
// Prototype for the function to be written for a given processor implementation
|
|
//
|
|
// Returns clip intersection.
|
|
//
|
|
|
|
class ID3DFE_PVFUNCS
|
|
{
|
|
public:
|
|
virtual ~ID3DFE_PVFUNCS() { };
|
|
virtual DWORD ProcessVertices(LPD3DFE_PROCESSVERTICES)=0;
|
|
virtual HRESULT ProcessPrimitive(LPD3DFE_PROCESSVERTICES)=0;
|
|
virtual HRESULT ProcessIndexedPrimitive(LPD3DFE_PROCESSVERTICES)=0;
|
|
virtual HRESULT OptimizeVertexBuffer
|
|
(DWORD dwFVFID, // Vertex type. XYZ position is allowed
|
|
DWORD dwNumVertices, // Number of vertices
|
|
DWORD dwVertexSize, // Vertex size in bytes
|
|
LPVOID lpSrcBuffer, // Source buffer.
|
|
LPVOID lpDstBuffer, // Output buffer.
|
|
DWORD dwFlags) // Should be zero for now
|
|
{return E_NOTIMPL;}
|
|
// Returns number of bytes to allocate for an optimized vertex buffer
|
|
// This function is called before OptimizeVertexBuffer
|
|
virtual DWORD ComputeOptimizedVertexBufferSize
|
|
(DWORD dwFVF, // Vertex type
|
|
DWORD dwVertexSize, // Vertex size in bytes
|
|
DWORD dwNumVertices) // Number of vertices
|
|
{return 0;}
|
|
// This function could be used if PSGP doesn't want to implement complete
|
|
// clipping pipeline
|
|
// Parameters:
|
|
// pv - state data
|
|
// tri - triangle to clip
|
|
// clipVertexPointer - pointer to an array of pointers to
|
|
// generated vertices
|
|
// Returns:
|
|
// Number of vertices in clipped triangle
|
|
// 0, if the triangle is off screen
|
|
virtual int ClipSingleTriangle(D3DFE_PROCESSVERTICES *pv,
|
|
ClipTriangle *tri,
|
|
ClipVertex ***clipVertexPointer) = 0;
|
|
virtual HRESULT ComputeSphereVisibility( LPD3DFE_PROCESSVERTICES pPV,
|
|
LPD3DVECTOR lpCenters,
|
|
LPD3DVALUE lpRadii,
|
|
DWORD dwNumSpheres,
|
|
DWORD dwFlags,
|
|
LPDWORD lpdwReturnValues) = 0;
|
|
virtual HRESULT ProcessTriangleList(LPD3DFE_PROCESSVERTICES)=0;
|
|
virtual HRESULT ProcessTriangleFan(LPD3DFE_PROCESSVERTICES)=0;
|
|
virtual HRESULT ProcessTriangleStrip(LPD3DFE_PROCESSVERTICES)=0;
|
|
};
|
|
|
|
typedef ID3DFE_PVFUNCS *LPD3DFE_PVFUNCS;
|
|
|
|
//---------------------------------------------------------------------
|
|
// Direct3D implementation of PVFUNCS
|
|
//
|
|
class D3DFE_PVFUNCS : public ID3DFE_PVFUNCS
|
|
{
|
|
public:
|
|
DWORD ProcessVertices(LPD3DFE_PROCESSVERTICES);
|
|
HRESULT ProcessPrimitive(LPD3DFE_PROCESSVERTICES);
|
|
HRESULT ProcessIndexedPrimitive(LPD3DFE_PROCESSVERTICES);
|
|
int ClipSingleTriangle(D3DFE_PROCESSVERTICES *pv,
|
|
ClipTriangle *tri,
|
|
ClipVertex ***clipVertexPointer);
|
|
HRESULT ComputeSphereVisibility( LPD3DFE_PROCESSVERTICES pPV,
|
|
LPD3DVECTOR lpCenters,
|
|
LPD3DVALUE lpRadii,
|
|
DWORD dwNumSpheres,
|
|
DWORD dwFlags,
|
|
LPDWORD lpdwReturnValues);
|
|
HRESULT ProcessTriangleList(LPD3DFE_PROCESSVERTICES);
|
|
HRESULT ProcessTriangleFan(LPD3DFE_PROCESSVERTICES);
|
|
HRESULT ProcessTriangleStrip(LPD3DFE_PROCESSVERTICES);
|
|
private:
|
|
HRESULT ProcessLineStrip(D3DFE_PROCESSVERTICES *pv);
|
|
HRESULT ProcessLineList(D3DFE_PROCESSVERTICES *pv);
|
|
};
|
|
|
|
// GeometrySetup function takes a DWORD describing the dirty bits and the new state vector
|
|
// and passes back the 3 new leaf routines to use.
|
|
typedef HRESULT (D3DAPI *LPD3DFE_CONTEXTCREATE)(DWORD dwFlags, LPD3DFE_PVFUNCS *lpLeafFuncs);
|
|
|
|
// Global pointer to Processor specific PV setup routine
|
|
// This is defined in dlld3d.cpp
|
|
extern LPD3DFE_CONTEXTCREATE pfnFEContextCreate;
|
|
|
|
#endif // _D3DFE_H
|