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/******************************Module*Header**********************************\
** !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!* !! !!* !! WARNING: NOT DDK SAMPLE CODE !!* !! !!* !! This source code is provided for completeness only and should not be !!* !! used as sample code for display driver development. Only those sources !!* !! marked as sample code for a given driver component should be used for !!* !! development purposes. !!* !! !!* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!** Module Name: dltamacr.h** Content: Hardware specific macro definitions** Copyright (c) 1994-1999 3Dlabs Inc. Ltd. All rights reserved.* Copyright (c) 1995-2003 Microsoft Corporation. All rights reserved.\*****************************************************************************/#ifndef __DLTAMACR_H
#define __DLTAMACR_H
#define AS_ULONG(val) *((volatile DWORD *) &(val))
// Macros defining the different Vertex types.
#define VTX_FOG (0x1 << 25)
#define VTX_RGB (0x7 << 21)
#define VTX_R (0x1 << 21)
#define VTX_RGBA (0xF << 21)
#define VTX_COLOR (0x1 << 30)
#define VTX_SPECULAR (0x1 << 31)
#define VTX_STQ (0x7 << 16)
#define VTX_KSKD (0x3 << 19)
#define VTX_KS (0x1 << 19)
#define VTX_XYZ (0x7 << 26)
#define VTX_XY (0x3 << 26)
#define VTX_GRP (0x2 << 14)
#define GAMBIT_XYZ_VTX (VTX_GRP | VTX_XYZ)
#define GAMBIT_XYZ_COLOR_VTX (VTX_GRP | VTX_XYZ | VTX_COLOR)
#define GAMBIT_STQ_VTX (VTX_GRP | VTX_STQ)
#define GAMBIT_XYZ_STQ_VTX (VTX_GRP | VTX_XYZ | VTX_STQ)
#ifdef ANTIALIAS
// Scale the screen coordinates by 2 for antialising renderers and bilinear filter down afterwards
#define Y_ADJUST(y) (((y)) * (float)(2.0f))
#else
#define Y_ADJUST(y) ((y))
#endif
//
// This loses one bit of accuracy, but adds and clamps without ifs.
// We first mask all channels with 0xfe. This leaves the lsb of
// each channel clear, so when the terms are added, any carry goes
// into the new highest bit. Now all we have to do is generate a
// mask for any channels that have overflowed. So we shift is right
// and eliminate everything but the overflow bits, so each channel
// contains either 0x00 or 0x01. Subtracting each channel from 0x80
// produces 0x7f or 0x80. We just shift this left once and mask to
// give 0xfe or 0x00. (We could eliminate the final mask here, but
// it would introduce noise into the low-bit of every channel..)
//
#define CLAMP8888(result, color, specular) \
result = (color & 0xfefefefe) + (specular & 0xfefefe); \ result |= ((0x808080 - ((result >> 8) & 0x010101)) & 0x7f7f7f) << 1;
//
// The full mip-level calculation is (log2( texArea/pixArea )) / 2.
// We approximate this by subtracting the exponent of pixArea from
// the exponent of texArea, having converted the floats into their
// bit-wise form. As the exponents start at bit 23, we need to shift
// this difference right by 23 and then once more for the divide by 2.
// We include a bias constant before the final shift to allow matching
// with the true sum-of-squares-of-derivatives calculation ( BIAS_SHIFT
// == 1 ) or whatever other reference image you have.
//
#define MIPSHIFT (23 + 1)
// A bias shift of zero matches 3DWB98's reference mipmap images
#ifndef BIAS_SHIFT
#define BIAS_SHIFT 0
#endif
#define BIAS_CONSTANT (1 << (MIPSHIFT - BIAS_SHIFT))
#define FIND_PERMEDIA_MIPLEVEL() \
{ \ int aTex = (int)*(DWORD *)&TextureArea; \ int aPix = (int)*(DWORD *)&PixelArea; \ iNewMipLevel = ((aTex - aPix + BIAS_CONSTANT) >> MIPSHIFT); \ if( iNewMipLevel > maxLevel ) \ iNewMipLevel = maxLevel; \ else \ { \ if( iNewMipLevel < 0 ) \ iNewMipLevel = 0; \ } \}
#define FLUSH_DUE_TO_WRAP(par,vs) { if( vs ) pContext->flushWrap_##par = TRUE; }
#define DONT_FLUSH_DUE_TO_WRAP(par,vs) { if( vs ) pContext->flushWrap_##par = FALSE; }
#define RENDER_AREA_STIPPLE_ENABLE(a) a |= 1;
#define RENDER_AREA_STIPPLE_DISABLE(a) a &= ~1;
#define RENDER_LINE_STIPPLE_ENABLE(a) a |= (1 << 1);
#define RENDER_LINE_STIPPLE_DISABLE(a) a &= ~(1 << 1);
#define RENDER_TEXTURE_ENABLE(a) a |= (1 << 13);
#define RENDER_TEXTURE_DISABLE(a) a &= ~(1 << 13);
#define RENDER_FOG_ENABLE(a) a |= (1 << 14);
#define RENDER_FOG_DISABLE(a) a &= ~(1 << 14);
#define RENDER_SUB_PIXEL_CORRECTION_ENABLE(a) a |= (1 << 16);
#define RENDER_SUB_PIXEL_CORRECTION_DISABLE(a) a &= ~(1 << 16);
#define RENDER_LINE(a) a &= ~(1 << 6);
// Disable line stipple when rendering trapezoid
#define RENDER_TRAPEZOID(a) a = (a & ~(1 << 1)) | (1 << 6);
#define RENDER_POINT(a) a = (a & ~(3 << 6)) | (2 << 6);
#define RENDER_NEGATIVE_CULL_P3(a) a |= (1 << 17);
#define RENDER_POSITIVE_CULL_P3(a) a &= ~(1 << 17);
//*****************************************************
// PERMEDIA3 HW DEFINITIONS WE NEED
//*****************************************************
#ifdef WNT_DDRAW
// NT needs this for the functions it places in DDEnable, which
// live in the mini directory for W95
typedef struct { union { struct GlintReg Glint; };} *PREGISTERS;
#define DEFAULT_SUBBUFFERS 8
#else
#define DEFAULT_SUBBUFFERS 128
#endif // WNT_DDRAW
// Macros to identify the Permedia3 chip type
#define RENDERCHIP_P3RXFAMILY \
(pThisDisplay->pGLInfo->dwRenderFamily == P3R3_ID) #define RENDERCHIP_PERMEDIAP3 \
((pThisDisplay->pGLInfo->dwRenderChipID == PERMEDIA3_ID) || \ (pThisDisplay->pGLInfo->dwRenderChipID == GLINTR3_ID )) #define TLCHIP_GAMMA ( pThisDisplay->pGLInfo->dwGammaRev != 0)
//@@BEGIN_DDKSPLIT
//#define RENDERCHIP_PERMEDIAP2 ((pThisDisplay->pGLInfo->dwRenderChipID == PERMEDIA2_ID) || (pThisDisplay->pGLInfo->dwRenderChipID == TIPERMEDIA2_ID))
//#define RENDERCHIP_PERMEDIAFAMILY (pThisDisplay->pGLInfo->dwRenderFamily == PERMEDIA_ID)
//#define RENDERCHIP_PERMEDIAP4 (pThisDisplay->pGLInfo->dwRenderChipID == PERMEDIA4_ID)
//#define RENDERCHIP_PERMEDIAPLUS (pThisDisplay->pGLInfo->dwRenderChipID == PERMEDIAPLUS_ID)
//#define RENDERCHIP_PERMEDIAP2_ST_REV0 (pThisDisplay->pGLInfo->dwRenderChipRev == PERMEDIA2_REV0)
//#define RENDERCHIP_PERMEDIAP2_ST_REV1 (pThisDisplay->pGLInfo->dwRenderChipRev == PERMEDIA2_REV1)
//#define RENDERCHIP_PERMEDIAP2_ST (pThisDisplay->pGLInfo->dwRenderChipID == PERMEDIA2_ID)
//#define RENDERCHIP_GLINTR3 (pThisDisplay->pGLInfo->dwRenderChipID == GLINTR3_ID)
//#define RENDERCHIP_GLINTR4 (pThisDisplay->pGLInfo->dwRenderChipID == GLINTR4_ID)
//#define TLCHIP_GAMMA1 (pThisDisplay->pGLInfo->dwRenderChipID == GAMMA_ID)
//#define TLCHIP_GAMMA3 (pThisDisplay->pGLInfo->dwTLChipID == GAMMA3_ID)
//#define TLCHIP_GAMMAFAMILY (pThisDisplay->pGLInfo->dwTLFamily == GAMMA_ID)
//@@END_DDKSPLIT
// Depth of FB in pixel size
#define GLINTDEPTH8 0
#define GLINTDEPTH16 1
#define GLINTDEPTH32 2
#define GLINTDEPTH24 4
// Bits in the Render command
#define __RENDER_VARIABLE_SPANS (1 << 18)
#define __RENDER_SYNC_ON_HOST_DATA (1 << 12)
#define __RENDER_SYNC_ON_BIT_MASK (1 << 11)
#define __RENDER_TRAPEZOID_PRIMITIVE (__GLINT_TRAPEZOID_PRIMITIVE << 6)
#define __RENDER_LINE_PRIMITIVE (__GLINT_LINE_PRIMITIVE << 6)
#define __RENDER_POINT_PRIMITIVE (__GLINT_POINT_PRIMITIVE << 6)
#define __RENDER_FAST_FILL_INC(n) (((n) >> 4) << 4) // n = 8, 16 or 32
#define __RENDER_FAST_FILL_ENABLE (1 << 3)
#define __RENDER_RESET_LINE_STIPPLE (1 << 2)
#define __RENDER_LINE_STIPPLE_ENABLE (1 << 1)
#define __RENDER_AREA_STIPPLE_ENABLE (1 << 0)
#define __RENDER_TEXTURED_PRIMITIVE (1 << 13)
// Some constants
#define ONE 0x00010000
// Macro to take a GLINT logical op and return the enabled LogcialOpMode bits
#define GLINT_ENABLED_LOGICALOP(op) (((op) << 1) | __PERMEDIA_ENABLE)
#if WNT_DDRAW
// NT Calls to switch hardware contexts
typedef enum COntextType_Tag { ContextType_None, ContextType_Fixed, ContetxType_RegisterList, ContextType_Dump} ContextType;
extern VOID vGlintFreeContext( PPDEV ppdev, LONG ctxtId);extern LONG GlintAllocateNewContext( PPDEV ppdev, DWORD *pTag, LONG ntags, ULONG NumSubBuffers, PVOID priv, ContextType ctxtType);extern VOID vGlintSwitchContext( PPDEV ppdev, LONG ctxtId);
// On NT Registry variables are stored as DWORDS.
extern BOOL bGlintQueryRegistryValueUlong(PPDEV, LPWSTR, PULONG);#endif //WNT_DDRAW
#endif //__DLTAMACR_H
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