You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
263 lines
9.0 KiB
263 lines
9.0 KiB
/******************************Module*Header**********************************\
|
|
*
|
|
* *******************
|
|
* * D3D SAMPLE CODE *
|
|
* *******************
|
|
*
|
|
* Module Name: d3dline.c
|
|
*
|
|
* Content: Direct3D hw line rasterization code.
|
|
*
|
|
* Copyright (c) 1994-1998 3Dlabs Inc. Ltd. All rights reserved.
|
|
* Copyright (c) 1995-1999 Microsoft Corporation. All rights reserved.
|
|
\*****************************************************************************/
|
|
|
|
#include "precomp.h"
|
|
#include "d3ddelta.h"
|
|
#include "d3dhw.h"
|
|
#include "d3dcntxt.h"
|
|
#if defined(_ALPHA_)
|
|
#include <math.h>
|
|
#endif
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//
|
|
// VOID P2_Draw_FVF_Line
|
|
//
|
|
// Hardare render a single line coming from two FVF vertices
|
|
//
|
|
// Primitive rendering at this stage is dependent upon the current value/setting
|
|
// of texturing, perspective correction, fogging, gouraud/flat shading, and
|
|
// specular highlights.
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
VOID
|
|
P2_Draw_FVF_Line(PERMEDIA_D3DCONTEXT *pContext,
|
|
LPD3DTLVERTEX lpV0,
|
|
LPD3DTLVERTEX lpV1,
|
|
LPD3DTLVERTEX lpVFlat,
|
|
LPP2FVFOFFSETS lpFVFOff)
|
|
{
|
|
DWORD dwFlags = pContext->Hdr.Flags;
|
|
ULONG ulRenderCmd = pContext->RenderCommand;
|
|
DWORD dwColorOffs,dwSpecularOffs,dwTexOffs;
|
|
D3DCOLOR dwColor0, dwColor1;
|
|
D3DCOLOR dwSpec0, dwSpec1;
|
|
D3DVALUE fS0, fS1, fT0, fT1, fQ0, fQ1;
|
|
D3DVALUE fKs0, fKs1;
|
|
PERMEDIA_DEFS(pContext->ppdev);
|
|
|
|
DBG_D3D((10,"Entering P2_Draw_FVF_Line"));
|
|
|
|
// Set line rendering mode
|
|
RENDER_LINE(ulRenderCmd);
|
|
|
|
// Fix up the biasing in delta because delta doesn't do it for us for lines.
|
|
RESERVEDMAPTR(0x80);
|
|
SEND_PERMEDIA_DATA(RasterizerMode, BIAS_NONE);
|
|
|
|
// Get FVF structure offsets
|
|
__SetFVFOffsets(&dwColorOffs,&dwSpecularOffs,&dwTexOffs,lpFVFOff);
|
|
|
|
// Get vertex color value (FVF based)
|
|
if (dwColorOffs)
|
|
{
|
|
dwColor0 = FVFCOLOR(lpV0, dwColorOffs)->color;
|
|
dwColor1 = FVFCOLOR(lpV1, dwColorOffs)->color;
|
|
if (FAKE_ALPHABLEND_MODULATE & pContext->FakeBlendNum)
|
|
{
|
|
dwColor0 |= 0xFF000000;
|
|
dwColor1 |= 0xFF000000;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// must set default in case no D3DFVF_DIFFUSE
|
|
dwColor0 = 0xFFFFFFFF;
|
|
dwColor1 = 0xFFFFFFFF;
|
|
}
|
|
|
|
// Get vertex specular value (FVF based) if necessary
|
|
if ((dwFlags & (CTXT_HAS_SPECULAR_ENABLED | CTXT_HAS_FOGGING_ENABLED))
|
|
&& (dwSpecularOffs!=0))
|
|
{
|
|
dwSpec0 = FVFSPEC(lpV0, dwSpecularOffs)->specular;
|
|
dwSpec1 = FVFSPEC(lpV1, dwSpecularOffs)->specular;
|
|
}
|
|
|
|
if ((dwFlags & CTXT_HAS_TEXTURE_ENABLED) && (dwTexOffs != 0))
|
|
{
|
|
// Get s,t texture coordinates (FVF based)
|
|
fS0 = FVFTEX(lpV0,dwTexOffs)->tu;
|
|
fT0 = FVFTEX(lpV0,dwTexOffs)->tv;
|
|
fS1 = FVFTEX(lpV1,dwTexOffs)->tu;
|
|
fT1 = FVFTEX(lpV1,dwTexOffs)->tv;
|
|
|
|
// Wrap texture coordinates if necessary
|
|
WRAP_LINE(fS, dwFlags & CTXT_HAS_WRAPU_ENABLED);
|
|
WRAP_LINE(fT, dwFlags & CTXT_HAS_WRAPV_ENABLED);
|
|
|
|
// Scale s,t coordinate values
|
|
fS0 *= pContext->DeltaWidthScale;
|
|
fS1 *= pContext->DeltaWidthScale;
|
|
fT0 *= pContext->DeltaHeightScale;
|
|
fT1 *= pContext->DeltaHeightScale;
|
|
|
|
// Apply perpspective corrections if necessary
|
|
if (dwFlags & CTXT_HAS_PERSPECTIVE_ENABLED)
|
|
{
|
|
fQ0 = lpV0->rhw;
|
|
fQ1 = lpV1->rhw;
|
|
fS0 *= fQ0;
|
|
fT0 *= fQ0;
|
|
fS1 *= fQ1;
|
|
fT1 *= fQ1;
|
|
}
|
|
else
|
|
{
|
|
fQ0 = fQ1 = 1.0;
|
|
}
|
|
|
|
// Send lines s,t,q,ks (conditionaly),x,y,z values
|
|
if ((dwFlags & CTXT_HAS_SPECULAR_ENABLED) && (dwSpecularOffs!=0))
|
|
{
|
|
fKs0 = RGB256_TO_LUMA(RGB_GETRED(dwSpec0),
|
|
RGB_GETGREEN(dwSpec0),
|
|
RGB_GETBLUE(dwSpec0));
|
|
|
|
if (dwFlags & CTXT_HAS_GOURAUD_ENABLED)
|
|
{
|
|
fKs1 = RGB256_TO_LUMA(RGB_GETRED(dwSpec1),
|
|
RGB_GETGREEN(dwSpec1),
|
|
RGB_GETBLUE(dwSpec1));
|
|
}
|
|
else
|
|
{
|
|
fKs1 = fKs0;
|
|
}
|
|
|
|
SEND_VERTEX_STQ_KS_XYZ(__Permedia2TagV0FloatS, fS0, fT0, fQ0, fKs0,
|
|
lpV0->sx, lpV0->sy, lpV0->sz);
|
|
SEND_VERTEX_STQ_KS_XYZ(__Permedia2TagV1FloatS, fS1, fT1, fQ1, fKs1,
|
|
lpV1->sx, lpV1->sy, lpV1->sz);
|
|
}
|
|
else
|
|
{
|
|
SEND_VERTEX_STQ_XYZ(__Permedia2TagV0FloatS, fS0, fT0, fQ0,
|
|
lpV0->sx, lpV0->sy, lpV0->sz);
|
|
SEND_VERTEX_STQ_XYZ(__Permedia2TagV1FloatS, fS1, fT1, fQ1,
|
|
lpV1->sx, lpV1->sy, lpV1->sz);
|
|
}
|
|
}
|
|
else // not textured line
|
|
{
|
|
// If specular is enabled, change the colours
|
|
if ((dwFlags & CTXT_HAS_SPECULAR_ENABLED) && (dwSpecularOffs!=0))
|
|
{
|
|
CLAMP8888(dwColor0, dwColor0, dwSpec0 );
|
|
CLAMP8888(dwColor1, dwColor1, dwSpec1 );
|
|
}
|
|
|
|
// Send lines x,y,z values
|
|
SEND_VERTEX_XYZ(__Permedia2TagV0FloatS, lpV0->sx, lpV0->sy, lpV0->sz);
|
|
SEND_VERTEX_XYZ(__Permedia2TagV1FloatS, lpV1->sx, lpV1->sy, lpV1->sz);
|
|
}
|
|
|
|
// If fog is set, send the appropriate values
|
|
if ((dwFlags & CTXT_HAS_FOGGING_ENABLED) && (dwSpecularOffs!=0))
|
|
{
|
|
SEND_VERTEX_FOG(__Permedia2TagV0FixedF, RGB_GET_GAMBIT_FOG(dwSpec0));
|
|
SEND_VERTEX_FOG(__Permedia2TagV1FixedF, RGB_GET_GAMBIT_FOG(dwSpec1));
|
|
}
|
|
|
|
// Send appropriate color depending on Gouraud , Mono, & Alpha
|
|
if (dwFlags & CTXT_HAS_GOURAUD_ENABLED)
|
|
{
|
|
// Gouraud shading
|
|
if (RENDER_MONO)
|
|
{
|
|
SEND_VERTEX_RGB_MONO_P2(__Permedia2TagV0FixedS, dwColor0);
|
|
SEND_VERTEX_RGB_MONO_P2(__Permedia2TagV1FixedS, dwColor1);
|
|
}
|
|
else
|
|
{
|
|
if (dwFlags & CTXT_HAS_ALPHABLEND_ENABLED)
|
|
{
|
|
if (pContext->FakeBlendNum & FAKE_ALPHABLEND_ONE_ONE)
|
|
{
|
|
dwColor0 &= 0xFFFFFF; // supress color's alpha value
|
|
dwColor1 &= 0xFFFFFF;
|
|
}
|
|
}
|
|
SEND_VERTEX_RGBA_P2(__Permedia2TagV0FixedS, dwColor0);
|
|
SEND_VERTEX_RGBA_P2(__Permedia2TagV1FixedS, dwColor1);
|
|
}
|
|
}
|
|
else // Flat shading
|
|
{
|
|
// Get vertex color value (FVF based) from the right vertex!
|
|
if (dwColorOffs)
|
|
{
|
|
dwColor0 = FVFCOLOR(lpVFlat, dwColorOffs)->color;
|
|
if (FAKE_ALPHABLEND_MODULATE & pContext->FakeBlendNum)
|
|
{
|
|
dwColor0 |= 0xFF000000;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// must set default in case no D3DFVF_DIFFUSE
|
|
dwColor0 = 0xFFFFFFFF;
|
|
}
|
|
|
|
|
|
if (RENDER_MONO)
|
|
{
|
|
// Get constant color from the blue channel
|
|
DWORD BlueChannel;
|
|
BlueChannel = RGBA_GETBLUE(dwColor0);
|
|
SEND_PERMEDIA_DATA(ConstantColor,
|
|
RGB_MAKE(BlueChannel, BlueChannel, BlueChannel));
|
|
}
|
|
else
|
|
{
|
|
if (pContext->FakeBlendNum & FAKE_ALPHABLEND_ONE_ONE)
|
|
{
|
|
dwColor0 &= 0xFFFFFF;
|
|
}
|
|
SEND_PERMEDIA_DATA(ConstantColor,
|
|
RGBA_MAKE(RGBA_GETBLUE(dwColor0),
|
|
RGBA_GETGREEN(dwColor0),
|
|
RGBA_GETRED(dwColor0),
|
|
RGBA_GETALPHA(dwColor0)));
|
|
}
|
|
}
|
|
|
|
SEND_PERMEDIA_DATA(DrawLine01, ulRenderCmd);
|
|
SEND_PERMEDIA_DATA(RasterizerMode, 0);
|
|
COMMITDMAPTR();
|
|
|
|
DBG_D3D((10,"Exiting P2_Draw_FVF_Line"));
|
|
} // P2_Draw_FVF_Line
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//
|
|
// void P2_Draw_FVF_Wire_Tri
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
void
|
|
P2_Draw_FVF_Wire_Tri(PERMEDIA_D3DCONTEXT *pContext,
|
|
LPD3DTLVERTEX lpV0,
|
|
LPD3DTLVERTEX lpV1,
|
|
LPD3DTLVERTEX lpV2,
|
|
LPP2FVFOFFSETS lpFVFOff)
|
|
{
|
|
DBG_D3D((10,"Entering P2_Draw_FVF_Wire_Tri"));
|
|
|
|
P2_Draw_FVF_Line(pContext, lpV0, lpV1, lpV0, lpFVFOff);
|
|
P2_Draw_FVF_Line(pContext, lpV1, lpV2, lpV0, lpFVFOff);
|
|
P2_Draw_FVF_Line(pContext, lpV2, lpV0, lpV0, lpFVFOff);
|
|
|
|
DBG_D3D((10,"Exiting P2_Draw_FVF_Wire_Tri"));
|
|
}
|