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- moved renderstyle and colortables code to 'common'.

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Christoph Oelckers 2020-04-11 19:02:14 +02:00
commit 3e285d2261
18 changed files with 128 additions and 87 deletions
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165
src/r_data/renderstyle.cpp
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@ -1,165 +0,0 @@
/*
** r_data.cpp
**
**---------------------------------------------------------------------------
** Copyright 2008-2011 Randy Heit
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**---------------------------------------------------------------------------
**
**
*/
#include "templates.h"
#include "renderstyle.h"
#include "c_cvars.h"
#include "serializer.h"
CVAR (Bool, r_drawtrans, true, 0)
CVAR (Int, r_drawfuzz, 1, CVAR_ARCHIVE)
// Convert legacy render styles to flexible render styles.
FRenderStyle LegacyRenderStyles[STYLE_Count] =
{
{ { STYLEOP_None, STYLEALPHA_Zero, STYLEALPHA_Zero, 0 } }, /* STYLE_None */
{ { STYLEOP_Add, STYLEALPHA_Src, STYLEALPHA_InvSrc, STYLEF_Alpha1 } }, /* STYLE_Normal */
{ { STYLEOP_Fuzz, STYLEALPHA_Src, STYLEALPHA_InvSrc, 0 } }, /* STYLE_Fuzzy */
{ { STYLEOP_Add, STYLEALPHA_Src, STYLEALPHA_InvSrc, STYLEF_TransSoulsAlpha } }, /* STYLE_SoulTrans */
{ { STYLEOP_FuzzOrAdd, STYLEALPHA_Src, STYLEALPHA_InvSrc, 0 } }, /* STYLE_OptFuzzy */
{ { STYLEOP_Add, STYLEALPHA_Src, STYLEALPHA_InvSrc, STYLEF_Alpha1 | STYLEF_ColorIsFixed } }, /* STYLE_Stencil */
{ { STYLEOP_Add, STYLEALPHA_Src, STYLEALPHA_InvSrc, 0 } }, /* STYLE_Translucent */
{ { STYLEOP_Add, STYLEALPHA_Src, STYLEALPHA_One, 0 } }, /* STYLE_Add */
{ { STYLEOP_Add, STYLEALPHA_Src, STYLEALPHA_InvSrc, STYLEF_RedIsAlpha | STYLEF_ColorIsFixed } }, /* STYLE_Shaded */
{ { STYLEOP_Add, STYLEALPHA_Src, STYLEALPHA_InvSrc, STYLEF_ColorIsFixed } }, /* STYLE_TranslucentStencil */
{ { STYLEOP_Shadow, 0, 0, 0 } }, /* STYLE_Shadow */
{ { STYLEOP_RevSub, STYLEALPHA_Src, STYLEALPHA_One, 0 } }, /* STYLE_Subtract*/
{ { STYLEOP_Add, STYLEALPHA_Src, STYLEALPHA_One, STYLEF_ColorIsFixed } }, /* STYLE_AddStencil */
{ { STYLEOP_Add, STYLEALPHA_Src, STYLEALPHA_One, STYLEF_RedIsAlpha | STYLEF_ColorIsFixed } }, /* STYLE_AddShaded */
{ { STYLEOP_Add, STYLEALPHA_DstCol, STYLEALPHA_Zero, 0 } }, /* STYLE_Multiply */
{ { STYLEOP_Add, STYLEALPHA_InvDstCol, STYLEALPHA_Zero, 0 } }, /* STYLE_InverseMultiply */
{ { STYLEOP_Add, STYLEALPHA_SrcCol, STYLEALPHA_InvSrcCol, 0 } }, /* STYLE_ColorBlend */
{ { STYLEOP_Add, STYLEALPHA_One, STYLEALPHA_Zero, 0 } }, /* STYLE_Source */
{ { STYLEOP_Add, STYLEALPHA_SrcCol, STYLEALPHA_One, 0 } }, /* STYLE_ColorAdd */
};
double GetAlpha(int type, double alpha)
{
switch (type)
{
case STYLEALPHA_Zero: return 0;
case STYLEALPHA_One: return 1.;
case STYLEALPHA_Src: return alpha;
case STYLEALPHA_InvSrc: return 1. - alpha;
default: return 0.5; // undeterminable
}
}
//==========================================================================
//
// FRenderStyle :: IsVisible
//
// Coupled with the given alpha, will this render style produce something
// visible on-screen?
//
//==========================================================================
bool FRenderStyle::IsVisible(double alpha) const throw()
{
if (BlendOp == STYLEOP_None)
{
return false;
}
if (BlendOp == STYLEOP_Add || BlendOp == STYLEOP_RevSub)
{
if (Flags & STYLEF_Alpha1)
{
alpha = 1.;
}
else
{
alpha = clamp(alpha, 0., 1.);
}
return GetAlpha(SrcAlpha, alpha) != 0 || GetAlpha(DestAlpha, alpha) != 1;
}
// Treat anything else as visible.
return true;
}
//==========================================================================
//
// FRenderStyle :: CheckFuzz
//
// Adjusts settings based on r_drawfuzz CVAR
//
//==========================================================================
void FRenderStyle::CheckFuzz()
{
switch (BlendOp)
{
default:
return;
case STYLEOP_FuzzOrAdd:
if (r_drawtrans && r_drawfuzz == 0)
{
BlendOp = STYLEOP_Add;
return;
}
break;
case STYLEOP_FuzzOrSub:
if (r_drawtrans && r_drawfuzz == 0)
{
BlendOp = STYLEOP_Sub;
return;
}
break;
case STYLEOP_FuzzOrRevSub:
if (r_drawtrans && r_drawfuzz == 0)
{
BlendOp = STYLEOP_RevSub;
return;
}
break;
}
if (r_drawfuzz == 2)
{
BlendOp = STYLEOP_Shadow;
}
else
{
BlendOp = STYLEOP_Fuzz;
}
}
FSerializer &Serialize(FSerializer &arc, const char *key, FRenderStyle &style, FRenderStyle *def)
{
return arc.Array(key, &style.BlendOp, def ? &def->BlendOp : nullptr, 4);
}