93 lines
2.2 KiB
C++
93 lines
2.2 KiB
C++
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#include <stdlib.h>
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#include "templates.h"
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#include "doomdef.h"
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#include "m_bbox.h"
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#include "i_system.h"
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#include "p_lnspec.h"
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#include "p_setup.h"
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#include "swrenderer/r_main.h"
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#include "r_plane.h"
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#include "swrenderer/drawers/r_draw.h"
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#include "r_things.h"
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#include "r_3dfloors.h"
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#include "a_sharedglobal.h"
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#include "g_level.h"
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#include "p_effect.h"
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#include "doomstat.h"
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#include "r_state.h"
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#include "r_bsp.h"
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#include "r_segs.h"
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#include "v_palette.h"
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#include "r_sky.h"
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#include "po_man.h"
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#include "r_data/colormaps.h"
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#include "r_draw_segment.h"
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namespace swrenderer
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{
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drawseg_t *firstdrawseg;
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drawseg_t *ds_p;
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drawseg_t *drawsegs;
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size_t FirstInterestingDrawseg;
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TArray<size_t> InterestingDrawsegs;
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namespace
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{
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size_t MaxDrawSegs;
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}
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void R_FreeDrawSegs()
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{
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if (drawsegs != nullptr)
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{
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M_Free(drawsegs);
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drawsegs = nullptr;
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}
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}
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void R_ClearDrawSegs()
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{
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if (drawsegs == nullptr)
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{
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MaxDrawSegs = 256; // [RH] Default. Increased as needed.
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firstdrawseg = drawsegs = (drawseg_t *)M_Malloc (MaxDrawSegs * sizeof(drawseg_t));
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}
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FirstInterestingDrawseg = 0;
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InterestingDrawsegs.Clear ();
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ds_p = drawsegs;
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}
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drawseg_t *R_AddDrawSegment()
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{
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if (ds_p == &drawsegs[MaxDrawSegs])
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{ // [RH] Grab some more drawsegs
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size_t newdrawsegs = MaxDrawSegs ? MaxDrawSegs * 2 : 32;
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ptrdiff_t firstofs = firstdrawseg - drawsegs;
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drawsegs = (drawseg_t *)M_Realloc(drawsegs, newdrawsegs * sizeof(drawseg_t));
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firstdrawseg = drawsegs + firstofs;
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ds_p = drawsegs + MaxDrawSegs;
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MaxDrawSegs = newdrawsegs;
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DPrintf(DMSG_NOTIFY, "MaxDrawSegs increased to %zu\n", MaxDrawSegs);
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}
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return ds_p++;
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}
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ptrdiff_t R_NewOpening(ptrdiff_t len)
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{
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ptrdiff_t res = lastopening;
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len = (len + 1) & ~1; // only return DWORD aligned addresses because some code stores fixed_t's and floats in openings...
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lastopening += len;
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if ((size_t)lastopening > maxopenings)
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{
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do
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maxopenings = maxopenings ? maxopenings * 2 : 16384;
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while ((size_t)lastopening > maxopenings);
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openings = (short *)M_Realloc(openings, maxopenings * sizeof(*openings));
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DPrintf(DMSG_NOTIFY, "MaxOpenings increased to %zu\n", maxopenings);
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}
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return res;
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}
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}
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