windows-server-2003/multimedia/directx/dxg/d3d/dx6/rast/cspan/cclrgen.mcp

//-----------------------------------------------------------------------------
//
// This file contains color generation functions.
//
// Copyright (C) Microsoft Corporation, 1997.
//
// WARNING WARNING WARNING
// This cpp file generated from mcp file.
// EDIT THE MCP FILE.
// I warned you.
// WARNING WARNING WARNING
//
//-----------------------------------------------------------------------------

include(`m4hdr.mh')dnl
#include "pch.cpp"
#pragma hdrstop
#include "ccrgn_mh.h"

define(`d_ColorGen', `
void C_ColorGen_$1_$2_$3_$4(PD3DI_RASTCTX pCtx, PD3DI_RASTPRIM pP,
                          PD3DI_RASTSPAN pS)
{
ifelse(`$1', `Gouraud', `
    pS->uB += pP->iDBDX; pS->uG += pP->iDGDX;
    pS->uR += pP->iDRDX; pS->uA += pP->iDADX;')

ifelse(`$2', `Specular', `
    // ATTENTION if we really care, one could argue that saturation after fog is better
    pCtx->SI.uBB = (UINT16)min((UINT32)pCtx->SI.uBB + (UINT32)pS->uBS, 0xffff);
    pCtx->SI.uBG = (UINT16)min((UINT32)pCtx->SI.uBG + (UINT32)pS->uGS, 0xffff);
    pCtx->SI.uBR = (UINT16)min((UINT32)pCtx->SI.uBR + (UINT32)pS->uRS, 0xffff);
    pS->uBS += pP->iDBSDX; pS->uGS += pP->iDGSDX;
    pS->uRS += pP->iDRSDX;')

ifelse(`$3', `VertexFog', `
    UINT16 uFog = pS->uFog >> 8;       // 0.8
    pCtx->SI.uBB = (pCtx->SI.uBB>>8)*uFog;  // 8.0 * 0.8 = 8.8
    pCtx->SI.uBG = (pCtx->SI.uBG>>8)*uFog;
    pCtx->SI.uBR = (pCtx->SI.uBR>>8)*uFog;

    // this is unsigned saturating add in MMX
    pCtx->SI.uBB = (UINT16)min((UINT32)pCtx->SI.uBB + pCtx->SI.uFogB, 0xffff);
    pCtx->SI.uBG = (UINT16)min((UINT32)pCtx->SI.uBG + pCtx->SI.uFogG, 0xffff);
    pCtx->SI.uBR = (UINT16)min((UINT32)pCtx->SI.uBR + pCtx->SI.uFogR, 0xffff);

    pS->uFog += (INT16)pS->iDFog;

    pCtx->SI.uFogB += pCtx->SI.iFogBDX;
    pCtx->SI.uFogG += pCtx->SI.iFogGDX;
    pCtx->SI.uFogR += pCtx->SI.iFogRDX;')

    pCtx->pfnColorGenEnd(pCtx, pP, pS);

}')dnl
dnl

d_RepStr(`d_RepStr(`d_RepStr(`d_ColorGen(AA, BB, CC, NoMonochrome)',
        `AA', `Flat', `Gouraud')',
        `BB', `NoSpecular', `Specular')',
        `CC', `NoFog', `VertexFog')

void C_ColorGen_All_Monochrome(PD3DI_RASTCTX pCtx, PD3DI_RASTPRIM pP,
                       PD3DI_RASTSPAN pS)
{
    // ATTENTION, need to implement this
    D3D_WARN(0,"ColorGen_All_Monochrome unimplemented");
    DDASSERT(0);
}