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755 lines
26 KiB
755 lines
26 KiB
//----------------------------------------------------------------------------
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//
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// span.h
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//
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// Structures which define the interface between the edge walker to the
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// span interpolator.
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//
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// Copyright (C) Microsoft Corporation, 1997.
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//
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//----------------------------------------------------------------------------
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#ifndef _SPAN_H_
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#define _SPAN_H_
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#include <d3ditype.h>
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#include <d3dhalp.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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// TBD make this machine independent
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// don't leave any space between the elements of these structures
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// currently smallest element is a UINT16, may have to change this to pack(1)
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// if UINT8's are used.
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#include <pshpack2.h>
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// Limits, shifts and scaling factors for RASTSPAN and RASTPRIM data.
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// C_*_LIMIT is the constant integer form of the limit for cases where
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// direct integer comparisons can be done.
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#define Z_LIMIT g_fTwoPow31
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#define C_Z_LIMIT 0x4f000000
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#define Z16_FRAC_SHIFT 15
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#define Z16_FRAC_SCALE g_fTwoPow15
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#define OO_Z16_FRAC_SCALE g_fOoTwoPow15
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#define Z16_SHIFT 31
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#define Z16_SCALE g_fNearTwoPow31
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#define OO_Z16_SCALE g_fOoNearTwoPow31
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#define Z32_FRAC_SHIFT 0
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#define Z32_FRAC_SCALE g_fOne
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#define OO_Z32_FRAC_SCALE g_fOoNearTwoPow31
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#define Z32_SHIFT 31
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#define Z32_SCALE g_fNearTwoPow31
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#define OO_Z32_SCALE g_fOoNearTwoPow31
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#define TEX_LIMIT g_fTwoPow31
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#define C_TEX_LIMIT 0x4f000000
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#define TEX_SHIFT 20
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#define TEX_SCALE g_fTwoPow20
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#define OO_TEX_SCALE g_fOoTwoPow20
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#define COLOR_LIMIT g_fTwoPow15
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#define C_COLOR_LIMIT 0x47000000
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#define COLOR_SHIFT 8
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#define COLOR_SCALE g_fTwoPow8
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#define INDEX_COLOR_LIMIT g_fTwoPow30
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#define C_INDEX_COLOR_LIMIT 0x4e800000
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#define INDEX_COLOR_SHIFT 16
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#define INDEX_COLOR_SCALE g_fTwoPow16
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#define INDEX_COLOR_VERTEX_SHIFT 8
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// Shift to go from fixed-point value in vertex color to proper shift.
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#define INDEX_COLOR_FIXED_SHIFT (INDEX_COLOR_SHIFT - INDEX_COLOR_VERTEX_SHIFT)
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#define LOD_LIMIT g_fTwoPow15
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#define C_LOD_LIMIT 0x47000000
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#define LOD_SHIFT 11
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#define LOD_SCALE g_fTwoPow11
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#define LOD_MIN (-15)
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#define OOW_LIMIT g_fTwoPow31
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#define C_OOW_LIMIT 0x4f000000
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#define OOW_SHIFT 31
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#define OOW_SCALE g_fNearTwoPow31
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#define OO_OOW_SCALE g_fOoNearTwoPow31
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#define W_SHIFT 16
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#define W_SCALE g_fTwoPow16
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#define OO_W_SCALE g_fOoTwoPow16
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#define OOW_W_SHIFT (OOW_SHIFT + W_SHIFT)
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#define OOW_W_SCALE g_fTwoPow47
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#define FOG_LIMIT g_fTwoPow15
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#define C_FOG_LIMIT 0x47000000
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#define FOG_SHIFT 8
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#define FOG_SCALE g_fTwoPow8
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#define FOG_ONE_SCALE g_fTwoPow16
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#define FOG_255_SCALE g_fTwoPow8
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#define TEX_FINAL_SHIFT 16
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#define TEX_FINAL_FRAC_MASK (0xffff)
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#define TEX_TO_FINAL_SHIFT (TEX_SHIFT - TEX_FINAL_SHIFT)
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// Multiply with span W so that [U|V]oW times resulting W is in the
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// final shift position. 1 / (W_SHIFT + TEX_TO_FINAL_SHIFT).
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#define TEX_UVW_TO_FINAL_SCALE g_fOoTwoPow20
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// Divide by span OoW so that [U|V]oW times resulting W is in the
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// final shift position. OOW_SHIFT - TEX_TO_FINAL_SHIFT.
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#define TEX_OOW_TO_FINAL_SCALE g_fTwoPow27
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#define RAST_DIRTYBITS_SIZE (((D3D_MAXRENDERSTATES + (D3DHAL_TSS_MAXSTAGES * D3DHAL_TSS_STATESPERSTAGE)) >> 3) + 2)
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#define RAST_TSS_DIRTYBIT( _Stage, _State ) \
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((UINT32)(D3D_MAXRENDERSTATES + \
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((_Stage) * D3DHAL_TSS_STATESPERSTAGE) + (_State)))
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typedef struct _UV_UNION {
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union {
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D3DVALUE tu;
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D3DVALUE dvTU;
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INT32 iU;
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FLOAT fU;
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INT32 iUoW; // 1.11.20 texture coordinates
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FLOAT fUoW;
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INT32 iDUoWDX; // 1.11.20
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FLOAT fDUoWDX;
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INT32 iDUoWDY; // 1.11.20
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FLOAT fDUoWDY;
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};
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union {
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D3DVALUE tv;
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D3DVALUE dvTV;
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INT32 iV;
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FLOAT fV;
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INT32 iVoW; // 1.11.20 texture coordinates
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FLOAT fVoW;
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INT32 iDVoWDX; // 1.11.20
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FLOAT fDVoWDX;
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INT32 iDVoWDY; // 1.11.20
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FLOAT fDVoWDY;
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};
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}UV_UNION;
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// General per span data. This structure is designed to be qword aligned.
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typedef struct tagD3DI_RASTSPAN
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{
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// Space separated things are quad words and are intended to be
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// quad word aligned.
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UINT16 uPix; // count of pixels to render
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INT16 iDFog; // 1.7.8 delta fog
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UINT16 uX; // 16.0 start X
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UINT16 uY; // 16.0 start Y
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INT16 iLOD; // 1.4.11 start LOD
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INT16 iDLOD; // 1.4.11 delta LOD (so piecewise linear LOD interp
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// is possible)
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union
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{
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UINT32 uZ; // 16.15 start Z
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FLOAT fZ;
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};
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// If texture stuff (iOoW, iUoW1, etc.) is 32 bits (even if we iterate
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// them at 16 bits under MMX sometimes)
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union
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{
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INT32 iW; // 1.15.16 first inverted W of span
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FLOAT fW;
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};
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union
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{
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INT32 iOoW; // 1.31 start 1/W (signed since they are target
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// of MMX multiply)
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FLOAT fOoW;
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};
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UV_UNION UVoW[D3DHAL_TSS_MAXSTAGES];
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union
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{
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struct
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{
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UINT16 uB, uG, uR, uA; // 8.8 start colors
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};
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struct
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{
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INT32 iIdx, iIdxA; // 1.8.16 ramp start color and alpha
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};
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};
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UINT16 uBS, uGS, uRS; // 8.8 start specular colors
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// Specular alpha is fog. This prevents specular color from
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// being unioned with the texture 2 coordinates below.
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UINT16 uFog; // 1.7.8 start fog value
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// Pointers into surface and Z buffers interpolated by the edge walker.
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PUINT8 pSurface;
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PUINT8 pZ;
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UINT8 pPad[16];
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} D3DI_RASTSPAN, *PD3DI_RASTSPAN; // sizeof(D3DI_RASTSPAN) == 64
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typedef CONST D3DI_RASTSPAN *PCD3DI_RASTSPAN;
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// D3DI_RASTPRIM uFlags
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#define D3DI_RASTPRIM_X_DEC (0x00000001L) // Else X increments.
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// General per primitive for edge walking and span scanning.
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// Can be expanded to suit the edge walker.
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// The information the span rasterizer needs is sensitive to qwords for
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// the MMX rasterizers.
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typedef struct tagD3DI_RASTPRIM
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{
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UINT32 uFlags;
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UINT16 uSpans; // count of spans
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UINT16 uResvd1; // perhaps we want to expand uSpans to 32 bits,
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// or perhaps 16 flag bits are enough
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// X gradients
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union
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{
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INT32 iDZDX; // 1.16.15
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FLOAT fDZDX;
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};
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union
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{
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INT32 iDOoWDX; // 1.31
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FLOAT fDOoWDX;
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};
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UV_UNION DUVoWDX[D3DHAL_TSS_MAXSTAGES];
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union
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{
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struct
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{
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INT16 iDBDX, iDGDX, iDRDX, iDADX; // 1.7.8
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};
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struct
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{
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FLOAT fDBDX, fDGDX, fDRDX, fDADX;
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};
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struct
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{
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INT32 iDIdxDX, iDIdxADX; // 1.8.16
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};
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};
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struct
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{
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union
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{
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struct
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{
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INT16 iDBSDX, iDGSDX, iDRSDX; // 1.7.8
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};
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struct
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{
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FLOAT fDBSDX, fDGSDX, fDRSDX;
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FLOAT fPad; // Padding to keep this set of attributes
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// an even multiple of quadwords.
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};
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};
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};
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// Y gradients for some attributes so that span routines
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// can do per-pixel mipmapping.
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UV_UNION DUVoWDY[D3DHAL_TSS_MAXSTAGES];
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union
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{
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INT32 iDOoWDY; // 1.31
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FLOAT fDOoWDY;
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};
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struct tagD3DI_RASTPRIM *pNext;
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// Pad to an even multiple of 32 bytes for cache alignment.
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UINT8 uPad[72];
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// Anything else needed
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} D3DI_RASTPRIM, *PD3DI_RASTPRIM;
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typedef CONST D3DI_RASTPRIM *PCD3DI_RASTPRIM;
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// D3DI_SPANTEX uFlags
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#define D3DI_SPANTEX_HAS_TRANSPARENT (0x00000001L)
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#define D3DI_SPANTEX_SURFACES_LOCKED (0x00000002L)
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#define D3DI_SPANTEX_MAXMIPLEVELS_DIRTY (0x00000004L)
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// Palette with alpha
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#define D3DI_SPANTEX_ALPHAPALETTE (0x00000008L)
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// D3DI_SPANTEX uFormat - NOTE: these enumerations match the sequence in the
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// array of DDPIXELFORMAT structures defined for matching in texture creation
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//
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// NOTE: these must be kept consistent with the RRPixelFormats for the reference rasterizer
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typedef enum _D3DI_SPANTEX_FORMAT
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{
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D3DI_SPTFMT_NULL = 0,
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D3DI_SPTFMT_B8G8R8 = 1,
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D3DI_SPTFMT_B8G8R8A8 = 2,
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D3DI_SPTFMT_B8G8R8X8 = 3,
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D3DI_SPTFMT_B5G6R5 = 4,
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D3DI_SPTFMT_B5G5R5 = 5,
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D3DI_SPTFMT_PALETTE4 = 6,
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D3DI_SPTFMT_PALETTE8 = 7,
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D3DI_SPTFMT_B5G5R5A1 = 8,
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D3DI_SPTFMT_B4G4R4 = 9,
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D3DI_SPTFMT_B4G4R4A4 =10,
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D3DI_SPTFMT_L8 =11, /* 8 bit luminance-only */
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D3DI_SPTFMT_L8A8 =12, /* 16 bit alpha-luminance */
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D3DI_SPTFMT_U8V8 =13, /* 16 bit bump map format */
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D3DI_SPTFMT_U5V5L6 =14, /* 16 bit bump map format with luminance */
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D3DI_SPTFMT_U8V8L8 =15, /* 24 bit bump map format with luminance */
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D3DI_SPTFMT_UYVY =16, /* UYVY format for PC98 compliance */
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D3DI_SPTFMT_YUY2 =17, /* YUY2 format for PC98 compliance */
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D3DI_SPTFMT_DXT1 =18, /* S3 texture compression technique 1 */
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D3DI_SPTFMT_DXT2 =19, /* S3 texture compression technique 2 */
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D3DI_SPTFMT_DXT3 =20, /* S3 texture compression technique 3 */
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D3DI_SPTFMT_DXT4 =21, /* S3 texture compression technique 4 */
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D3DI_SPTFMT_DXT5 =22, /* S3 texture compression technique 5 */
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D3DI_SPTFMT_B2G3R3 =23, /* 8 bit RGB texture format */
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D3DI_SPTFMT_Z16S0 =32,
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D3DI_SPTFMT_Z24S8 =33,
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D3DI_SPTFMT_Z15S1 =34,
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D3DI_SPTFMT_Z32S0 =35,
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D3DI_SPTFMT_S1Z15 =36,
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D3DI_SPTFMT_S8Z24 =37,
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// NOTE: this must be changed in conjunction with RR_STYPE in ref\inc\refrast.hpp
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D3DI_SPTFMT_FORCE_DWORD = 0x7fffffff, /* force 32-bit size enum */
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} D3DI_SPANTEX_FORMAT;
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// This encompasses all needed info about a chain of DD surfaces being used
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// as a potentially mipmapped texture.
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#define SPANTEX_MAXCLOD 11 // up to 2kx2k texture, all we can do with MMX INT16
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// U's and V's
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typedef struct tagD3DI_SPANTEX
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{
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UINT32 dwSize;
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INT32 iGeneration; // incremented when the texture changes
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UINT32 uFlags; // perspective, etc.
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D3DI_SPANTEX_FORMAT Format; // pixel format of the texture
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D3DTEXTUREADDRESS TexAddrU, TexAddrV; // texture address mode
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D3DTEXTUREMAGFILTER uMagFilter;// TEX3 style filter information
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D3DTEXTUREMINFILTER uMinFilter;// ATTENTION we could express this information more compactly
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D3DTEXTUREMIPFILTER uMipFilter;
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D3DCOLOR BorderColor; // border color for the texture
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// (for D3DTADDRESS_BORDER)
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D3DCOLOR TransparentColor; // color key on texture read
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FLOAT fLODBias; // Texture3 LOD bias value.
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PUINT8 pBits[SPANTEX_MAXCLOD]; // pointer for each LOD
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PUINT32 pRampmap; // set by ramp rasterizer, if necessary
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PUINT32 pPalette; // pointer to palette, if necessary
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INT32 iPaletteSize; // size of palette
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INT32 cLOD; // contains count of levels - 1 (0 means 1 level)
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// to use
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INT32 cLODTex; // contains count of levels - 1 (0 means 1 level)
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// that are actually in the texture
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// cLODTex >= cLOD is always true
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INT32 iMaxMipLevel; // index of largest mip map to use. 0 means use largest.
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INT iMaxScaledLOD; // ((cLOD + 1) scaled by LOD_SCALE) - 1.
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INT16 iSizeU, iSizeV; // LOD 0 size (only support power of 2
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// textures)
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INT16 iShiftU, iShiftV; // LOD 0 log2 size (valid for power-of-2
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// size only)
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INT16 iShiftPitch[SPANTEX_MAXCLOD]; // log2 pitch for each LOD
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#if (SPANTEX_MAXCLOD & 1) != 0
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// Pad following fields to a DWORD boundary.
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INT16 iPitchPad;
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#endif
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UINT16 uMaskU, uMaskV; // LOD 0 (1<<log2(size))-1
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// Variables for arithmetic address computation. Computed by DoTexAddrSetup.
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INT16 iFlipMaskU, iFlipMaskV;
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INT16 iClampMinU, iClampMinV;
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INT16 iClampMaxU, iClampMaxV;
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INT16 iClampEnU, iClampEnV;
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LPDIRECTDRAWSURFACE pSurf[SPANTEX_MAXCLOD]; // Added for TextureGetSurf
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// and Lock/Unlock Texture
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} D3DI_SPANTEX, *PD3DI_SPANTEX;
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// Color structure for blending etc. with enough room for 8.8 colors.
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// Even for 8 bit colors, this is convenient for lining up the colors
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// as we desire in MMX for 16 bit multiplies
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typedef struct tagD3DI_RASTCOLOR
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{
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UINT16 uB, uG, uR, uA;
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} D3DI_RASTCOLOR, *PD3DI_RASTCOLOR;
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// This structure has all the temporary storage needed for all the iterated
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// values to route the span information between the layers.
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// TBD there is lots more to add here, do texture mapping first
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typedef struct tagD3DI_SPANITER
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{
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// make the colors use the same order as RASTCOLOR above
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UINT16 uBB, uBG, uBR, uBA; // 8.8 blended color
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UINT16 uFogB, uFogG, uFogR, uFog; // 8.8 fog color, 0.16 fog value
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INT16 iFogBDX, iFogGDX, iFogRDX, iDFog; // 1.7.8 fog color deltas
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UINT32 uZDeferred; // storage for Z for deferred Z write
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UV_UNION TexUV[D3DHAL_TSS_MAXSTAGES];
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D3DCOLOR TexCol[D3DHAL_TSS_MAXSTAGES]; // [Texture]
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INT32 iDW; // to remember last delta W in
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UINT16 uDitherOffset;
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INT16 iXStep; // 1 or -1
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INT16 iSpecialW; // negative for first or last 3 pixels of span
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INT16 bStencilPass; // 1 if stencil test passed, otherwise 0
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union
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{
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INT32 iOoW; // previous OoW to pass between texaddr stages
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FLOAT fOoW;
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};
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} D3DI_SPANITER, *PD3DI_SPANITER;
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// Z compare macro
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// This does depend on the result of a compare being 0 or 1 (for the final XOR, since C
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// doesn't have a logical XOR), but this has been true on all processors and
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// compilers for some time.
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#define ZCMP16(p, g, b) \
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((((((INT32)(g) - (INT32)(b)) & (p)->iZAndMask) - (p)->iZNeg) >= 0) ^ (p)->iZXorMask)
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// Assumes the most significant bit of Z is 0 (31 bit Z)
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#define ZCMP32(p, g, b) \
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((((((INT32)(g) - (INT32)(b)) & (p)->iZAndMask) - (p)->iZNeg) >= 0) ^ (p)->iZXorMask)
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// Alpha Test compare macro
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#define ACMP(p, g, b) \
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((((((INT32)(g) - (INT32)(b)) & (p)->iAAndMask) - (p)->iANeg) >= 0) ^ (p)->iAXorMask)
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// Stencil Test compare macro
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#define SCMP(p, g, b) \
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((((((INT32)(g) - (INT32)(b)) & (p)->iSAndMask) - (p)->iSNeg) >= 0) ^ (p)->iSXorMask)
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// Helper macro that converts [0, 0xff] to [0, 5], linearly
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#define RGB8_CHANNEL(rgb) ((((rgb) * 5) + 0x80) >> 8)
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// Defines conversion from 24 bit RGB to 8 bit palette index. Each color has 6 values
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// resulting in 6**3 == 216 required colors in the palette.
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#define MAKE_RGB8(r, g, b) (RGB8_CHANNEL(r) * 36 \
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+ RGB8_CHANNEL(g) * 6 \
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+ RGB8_CHANNEL(b))
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// forward declaration of D3DI_RASTCTX
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struct tagD3DI_RASTCTX;
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typedef struct tagD3DI_RASTCTX D3DI_RASTCTX;
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typedef struct tagD3DI_RASTCTX *PD3DI_RASTCTX;
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typedef CONST struct tagD3DI_RASTCTX *PCD3DI_RASTCTX;
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// typedef for each rendering layer
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// note that the RASTCTX is changed because of the D3DI_SPANITER values
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typedef void (CDECL *PFNSPANLAYER)(PD3DI_RASTCTX pCtx, PD3DI_RASTPRIM pP,
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PD3DI_RASTSPAN pS);
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typedef void (CDECL *PFNTEXADDRESS)(PD3DI_RASTCTX pCtx, PD3DI_RASTPRIM pP,
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PD3DI_RASTSPAN pS, INT32 iTex);
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// typedef texture read functions
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// this is an actual function so it can be called multiple times
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// note that the RASTCTX is changed because of the D3DI_SPANITER values
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typedef D3DCOLOR (CDECL *PFNTEXREAD)(INT32 iU, INT32 iV, INT32 iShiftU,
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PUINT8 pBits, PD3DI_SPANTEX pTex);
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// Typedef for span rendering function pointers.
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typedef HRESULT (CDECL *PFNRENDERSPANS)(PD3DI_RASTCTX pCtx);
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// typedef for alpha blending functions.
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typedef void (CDECL *PFNBLENDFUNC)(PUINT16 pR, PUINT16 pG, PUINT16 pB,
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PUINT16 pA, D3DCOLOR DestC,
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PD3DI_RASTCTX pCtx);
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// typedef for buffer read functions.
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typedef D3DCOLOR (CDECL *PFNBUFREAD)(PUINT8 pBits);
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// typedef for texture blend get functions.
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typedef void (CDECL *PFNTEXBLENDGET)(PD3DI_RASTCOLOR pArg1,
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PD3DI_RASTCOLOR pArg2,
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PD3DI_RASTCOLOR pInput,
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PD3DI_RASTCTX pCtx, PD3DI_RASTSPAN pS,
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INT32 iTex);
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// typedef for texture blend get functions.
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typedef void (CDECL *PFNTEXBLENDOP)(PD3DI_RASTCOLOR pOut,
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PD3DI_RASTCOLOR pArg1,
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PD3DI_RASTCOLOR pArg2,
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PD3DI_RASTCTX pCtx, PD3DI_RASTSPAN pS,
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INT32 iTex);
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// Prototype for set of bead selections.
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typedef enum tagD3DI_BEADSET
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{
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D3DIBS_CMMX = 1, // C emulation of MMX beads
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D3DIBS_MMX = 2, // MMX beads
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D3DIBS_C = 3, // C beads
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D3DIBS_RAMP = 4, // Ramp beads
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D3DIBS_MMXASRGB = 5, // MMX selected for RGB rasterizer
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} D3DI_BEADSET;
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// General span scanning context
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struct tagD3DI_RASTCTX
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{
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UINT32 dwSize;
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//////////////////////////////////////////////////////////////////////
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// Temporary storage for span rendering routines. Could be global.
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// Not set by caller, and not changed by SpanInit.
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//
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D3DI_SPANITER SI;
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//////////////////////////////////////////////////////////////////////
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// Data that must be set by caller before a SpanInit.
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//
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// we may want to put a pointer to a DDSURFACEDESC or something like it
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// instead of this
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PUINT8 pSurfaceBits;
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INT iSurfaceStride;
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INT iSurfaceStep;
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INT iSurfaceBitCount;
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INT iSurfaceType; // or however we end up expressing this
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PUINT32 pRampMap; // pointer to ramp map, if necessary
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LPDIRECTDRAWSURFACE pDDS;
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PUINT8 pZBits;
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INT iZStride;
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INT iZStep;
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INT iZBitCount;
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LPDIRECTDRAWSURFACE pDDSZ;
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// Clip area.
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RECT Clip;
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// Sign of face area that should be culled. Zero is clockwise,
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// one is CCW and everything else means no culling.
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UINT uCullFaceSign;
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union
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{
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DWORD pdwRenderState[D3D_MAXRENDERSTATES];
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FLOAT pfRenderState[D3D_MAXRENDERSTATES];
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};
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// Since we are adjusting the order of texIdx in the vertex to suit that
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// defined in state TEXCOORDINDEX, we need a copy of adjusted WRAP state.
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// This is declared immediately after pdwRenderState so that we can share
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// a register with it in the assembly code.
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// WARNING WARNING - THIS ABSOLUTELY NEEDS TO BE FOLLOWING pdwRenderState
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// IMMEDIATELY. ASM CODE DEPENDS ON THIS.
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union
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{
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DWORD pdwTextureStageState[D3DHAL_TSS_MAXSTAGES][D3DHAL_TSS_STATESPERSTAGE];
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FLOAT pfTextureStageState[D3DHAL_TSS_MAXSTAGES][D3DHAL_TSS_STATESPERSTAGE];
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};
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// first texture object contains information for texture for first pair
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// of texture coordinates, second contains texture for second pair of
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// texture coordinates, etc.
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PD3DI_SPANTEX pTexture[D3DHAL_TSS_MAXSTAGES];
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// Number of active textures. 0 - texture off; 1 - pTexture[0] is valid
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// 2 - both pTexture[0] and pTexture[1] are valid
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UINT cActTex;
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// Number of active texture stages for blending. It's set in spaninit()
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// and used in TexBlend_TexM_Gen.
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UINT cActBldStage;
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// Dirty bits for render states.
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// ATTENTION - We can reduce the size to have one bit for each group of
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// states when we implement the light weighted beed chooser.
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// Right now, it's set by SetRenderState and cleared after SpanInit is
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// called. The bit corresponding to D3DHAL_MAX_RSTATES_AND_STAGES is set
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// whenever a state is changed.
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UINT8 StatesDirtyBits[RAST_DIRTYBITS_SIZE];
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#if (RAST_DIRTYBITS_SIZE & 1) != 0
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// Pad following fields to a DWORD boundary.
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INT8 StatesDirtyBitsPad0;
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#endif
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#if (RAST_DIRTYBITS_SIZE & 2) != 0
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// Pad following fields to a DWORD boundary.
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INT16 StatesDirtyBitsPad1;
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#endif
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// Version# of the D3DDevice corresponding to this Context
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UINT32 uDevVer;
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//////////////////////////////////////////////////////////////////////
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// Data is set by SpanInit given the input above.
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//
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// Span rendering entry point.
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PFNRENDERSPANS pfnRenderSpans;
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// function pointers for the beads
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PFNSPANLAYER pfnBegin;
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PFNSPANLAYER pfnLoopEnd;
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PFNSPANLAYER pfnTestPassEnd;
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PFNSPANLAYER pfnTestFailEnd;
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PFNTEXADDRESS pfnTexAddr[D3DHAL_TSS_MAXSTAGES];
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PFNSPANLAYER pfnTexAddrEnd;
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PFNTEXREAD pfnTexRead[D3DHAL_TSS_MAXSTAGES];
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PFNSPANLAYER pfnTexBlendEnd;
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PFNTEXBLENDGET pfnTexBlendGetColor[D3DHAL_TSS_MAXSTAGES];
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PFNTEXBLENDGET pfnTexBlendGetAlpha[D3DHAL_TSS_MAXSTAGES];
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PFNTEXBLENDOP pfnTexBlendOpColor[D3DHAL_TSS_MAXSTAGES];
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PFNTEXBLENDOP pfnTexBlendOpAlpha[D3DHAL_TSS_MAXSTAGES];
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PFNSPANLAYER pfnColorGenEnd;
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PFNSPANLAYER pfnAlphaTestPassEnd;
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PFNSPANLAYER pfnAlphaTestFailEnd;
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PFNBLENDFUNC pfnSrcBlend;
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PFNBLENDFUNC pfnDestBlend;
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PFNBUFREAD pfnBufRead;
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PFNSPANLAYER pfnColorBlendEnd;
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// Optional bead that can be called after every pixel for rasterizers
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// which loop beads rather than returning.
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PFNSPANLAYER pfnPixelEnd;
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// Optional bead that can be called after every span for rasterizers
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// which loop spans rather than returning.
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PFNSPANLAYER pfnSpanEnd;
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// arithmetic Z variables
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INT32 iZAndMask, iZNeg, iZXorMask;
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// arithmetic Alpha test variables. These could be 16 bits, if we ever really want
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// to save space
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INT32 iAAndMask, iANeg, iAXorMask;
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// 8.8 Alpha reference value
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INT32 iARef;
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// arithmetic stencil test variables. These could be 16 bits, if we ever really want
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// to save space
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INT32 iSAndMask, iSNeg, iSXorMask;
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// Pointer to first RASTPRIM.
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PD3DI_RASTPRIM pPrim;
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// Pointer to next context.
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PD3DI_RASTCTX pNext;
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// Current BeadTable to use
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D3DI_BEADSET BeadSet;
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// Bit 0 set disables ml1, etc.
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#define MMX_FP_DISABLE_MASK_NUM 1
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DWORD dwMMXFPDisableMask[MMX_FP_DISABLE_MASK_NUM];
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// RampLightingDriver, should be NULL except for RampRast and 8 bit palettized RGB
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// output surface cases.
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LPVOID pRampDrv;
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// RAMP_RANGE_INFO RampInfo;
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DWORD RampBase;
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DWORD RampSize;
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PUINT32 pTexRampMap;
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BOOL bRampSpecular;
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#ifdef DBG
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#define NAME_LEN 128
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char szTest[NAME_LEN];
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char szTestFail[NAME_LEN];
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char szTexAddr[D3DHAL_TSS_MAXSTAGES][NAME_LEN];
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char szTexRead[D3DHAL_TSS_MAXSTAGES][NAME_LEN];
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char szTexBlend[NAME_LEN];
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char szColorGen[NAME_LEN];
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char szAlphaTest[NAME_LEN];
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char szColorBlend[NAME_LEN];
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char szSrcBlend[NAME_LEN];
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char szDestBlend[NAME_LEN];
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char szBufRead[NAME_LEN];
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char szBufWrite[NAME_LEN];
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#undef NAME_LEN
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#endif
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};
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// Data passed to the span rendering functions looks like this:
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//
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// RASTCTX
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// |-> RASTPRIM
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// | | RASTSPAN
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// | | RASTSPAN (as many as RASTPRIM.uSpans says there are)
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// | RASTPRIM
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// | | RASTSPAN
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// | NULL
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// RASTCTX
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// |-> RASTPRIM
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// | | RASTSPAN
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// | NULL
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// NULL
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//
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// The given RASTCTX is the head of a list of contexts. Each context
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// points to a list of RASTPRIMs. Each RASTPRIM structure is immediately
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// followed by RASTPRIM.uSpans RASTSPAN structures.
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// Prototype for state validation call.
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HRESULT SpanInit(PD3DI_RASTCTX pCtx);
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// This is used to pack a FVF vertex into one understand by OptRast so it
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// does not need to figure out where to get the data it needs. This struct
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// can be modified to accommodate more data and it can be broken into more
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// specilized and smalled structs.
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// Right now, it is an extension of D3DTLVERTEX, and the extra uv is at the
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// very end so that OptRast can treat it as a D3DTLVERTEX if only the first
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// part of the data needs to be accessed.
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typedef struct _RAST_GENERIC_VERTEX {
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union {
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D3DVALUE sx; /* Screen coordinates */
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D3DVALUE dvSX;
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};
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union {
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D3DVALUE sy;
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D3DVALUE dvSY;
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};
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union {
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D3DVALUE sz;
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D3DVALUE dvSZ;
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};
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union {
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D3DVALUE rhw; /* Reciprocal of homogeneous w */
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D3DVALUE dvRHW;
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};
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union {
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D3DCOLOR color; /* Vertex color */
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D3DCOLOR dcColor;
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};
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union {
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D3DCOLOR specular; /* Specular component of vertex */
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D3DCOLOR dcSpecular;
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};
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UV_UNION texCoord[D3DHAL_TSS_MAXSTAGES]; /* Texture coordinates */
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}RAST_GENERIC_VERTEX, *PRAST_GENERIC_VERTEX;
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// Vertex types supported by OptRast
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typedef enum _RAST_VERTEX_TYPE
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{
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RAST_TLVERTEX = 1, /* (Legacy) TL vertex */
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RAST_GENVERTEX = 2, /* Generic FVF vertex */
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RAST_FORCE_DWORD = 0x7fffffff, /* force 32-bit size enum */
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}RAST_VERTEX_TYPE;
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#include <poppack.h>
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#ifdef __cplusplus
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}
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#endif
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#endif // _SPAN_H_
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