qzdoom-gpl/src/r_plane.h
Randy Heit 43fe317dbe Use flexible array members for structs that end with var-sized arrays
- Since Clang++, G++, and VC++ all support this extension (even though it's
  technically officially only part of C99), use it. It lets Clang's array-
  bounds checker know that these are meant to be accessed out of their so-called
  "bounds".
2014-04-03 16:33:33 -05:00

121 lines
3.4 KiB
C++

// Emacs style mode select -*- C++ -*-
//-----------------------------------------------------------------------------
//
// $Id:$
//
// Copyright (C) 1993-1996 by id Software, Inc.
//
// This source is available for distribution and/or modification
// only under the terms of the DOOM Source Code License as
// published by id Software. All rights reserved.
//
// The source is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
// for more details.
//
// DESCRIPTION:
// Refresh, visplane stuff (floor, ceilings).
//
//-----------------------------------------------------------------------------
#ifndef __R_PLANE_H__
#define __R_PLANE_H__
#include <stddef.h>
class ASkyViewpoint;
//
// The infamous visplane
//
struct visplane_s
{
struct visplane_s *next; // Next visplane in hash chain -- killough
secplane_t height;
FTextureID picnum;
int lightlevel;
fixed_t xoffs, yoffs; // killough 2/28/98: Support scrolling flats
int minx, maxx;
FDynamicColormap *colormap; // [RH] Support multiple colormaps
fixed_t xscale, yscale; // [RH] Support flat scaling
angle_t angle; // [RH] Support flat rotation
int sky;
ASkyViewpoint *skybox; // [RH] Support sky boxes
// [RH] This set of variables copies information from the time when the
// visplane is created. They are only used by stacks so that you can
// have stacked sectors inside a skybox. If the visplane is not for a
// stack, then they are unused.
int extralight;
float visibility;
fixed_t viewx, viewy, viewz;
angle_t viewangle;
fixed_t Alpha;
bool Additive;
// kg3D - keep track of mirror and skybox owner
int CurrentSkybox;
int CurrentMirror; // mirror counter, counts all of them
int MirrorFlags; // this is not related to CurrentMirror
unsigned short *bottom; // [RH] bottom and top arrays are dynamically
unsigned short pad; // allocated immediately after the
unsigned short top[]; // visplane.
};
typedef struct visplane_s visplane_t;
// Visplane related.
extern ptrdiff_t lastopening; // type short
typedef void (*planefunction_t) (int top, int bottom);
extern planefunction_t floorfunc;
extern planefunction_t ceilingfunc_t;
extern short floorclip[MAXWIDTH];
extern short ceilingclip[MAXWIDTH];
extern fixed_t yslope[MAXHEIGHT];
void R_InitPlanes ();
void R_DeinitPlanes ();
void R_ClearPlanes (bool fullclear);
int R_DrawPlanes ();
void R_DrawSkyBoxes ();
void R_DrawSkyPlane (visplane_t *pl);
void R_DrawNormalPlane (visplane_t *pl, fixed_t alpha, bool additive, bool masked);
void R_DrawTiltedPlane (visplane_t *pl, fixed_t alpha, bool additive, bool masked);
void R_MapVisPlane (visplane_t *pl, void (*mapfunc)(int y, int x1));
visplane_t *R_FindPlane
( const secplane_t &height,
FTextureID picnum,
int lightlevel,
fixed_t alpha,
bool additive,
fixed_t xoffs, // killough 2/28/98: add x-y offsets
fixed_t yoffs,
fixed_t xscale,
fixed_t yscale,
angle_t angle,
int sky,
ASkyViewpoint *skybox);
visplane_t *R_CheckPlane (visplane_t *pl, int start, int stop);
// [RH] Added for multires support
bool R_PlaneInitData (void);
extern visplane_t* floorplane;
extern visplane_t* ceilingplane;
#endif // __R_PLANE_H__