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gzdoom-gles/src/r_main.cpp
Randy Heit b5a731f3a6 - Move player prediction calls into D_Display(). 
SVN r3636 (trunk)
2012-05-10 03:48:36 +00:00

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// 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.
//
// $Log:$
//
// DESCRIPTION:
// Rendering main loop and setup functions,
// utility functions (BSP, geometry, trigonometry).
// See tables.c, too.
//
//-----------------------------------------------------------------------------
// HEADER FILES ------------------------------------------------------------
#include <stdlib.h>
#include <math.h>
#include "templates.h"
#include "doomdef.h"
#include "d_net.h"
#include "doomstat.h"
#include "m_random.h"
#include "m_bbox.h"
#include "r_local.h"
#include "r_plane.h"
#include "r_bsp.h"
#include "r_3dfloors.h"
#include "r_sky.h"
#include "st_stuff.h"
#include "c_cvars.h"
#include "c_dispatch.h"
#include "v_video.h"
#include "stats.h"
#include "i_video.h"
#include "i_system.h"
#include "a_sharedglobal.h"
#include "r_data/r_translate.h"
#include "p_3dmidtex.h"
#include "r_data/r_interpolate.h"
#include "v_palette.h"
#include "po_man.h"
#include "p_effect.h"
#include "st_start.h"
#include "v_font.h"
#include "r_data/colormaps.h"
#include "farchive.h"
// MACROS ------------------------------------------------------------------
#if 0
#define TEST_X 32343794
#define TEST_Y 111387517
#define TEST_Z 2164524
#define TEST_ANGLE 2468347904
#endif
// TYPES -------------------------------------------------------------------
// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------
void R_SpanInitData ();
void RP_RenderBSPNode (void *node);
bool RP_SetupFrame (bool backside);
void R_DeinitSprites();
// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------
// PRIVATE FUNCTION PROTOTYPES ---------------------------------------------
static void R_ShutdownRenderer();
// EXTERNAL DATA DECLARATIONS ----------------------------------------------
extern short *openings;
extern bool r_fakingunderwater;
extern "C" int fuzzviewheight;
// PRIVATE DATA DECLARATIONS -----------------------------------------------
static float CurrentVisibility = 8.f;
static fixed_t MaxVisForWall;
static fixed_t MaxVisForFloor;
static bool polyclipped;
extern bool r_showviewer;
bool r_dontmaplines;
// PUBLIC DATA DEFINITIONS -------------------------------------------------
CVAR (String, r_viewsize, "", CVAR_NOSET)
CVAR (Int, r_polymost, 0, 0)
CVAR (Bool, r_shadercolormaps, true, CVAR_ARCHIVE)
fixed_t r_BaseVisibility;
fixed_t r_WallVisibility;
fixed_t r_FloorVisibility;
float r_TiltVisibility;
fixed_t r_SpriteVisibility;
fixed_t r_ParticleVisibility;
fixed_t r_SkyVisibility;
fixed_t GlobVis;
fixed_t viewingrangerecip;
fixed_t FocalLengthX;
fixed_t FocalLengthY;
float FocalLengthXfloat;
FDynamicColormap*basecolormap; // [RH] colormap currently drawing with
int fixedlightlev;
lighttable_t *fixedcolormap;
FSpecialColormap *realfixedcolormap;
float WallTMapScale;
float WallTMapScale2;
bool bRenderingToCanvas; // [RH] True if rendering to a special canvas
fixed_t globaluclip, globaldclip;
fixed_t centerxfrac;
fixed_t centeryfrac;
fixed_t yaspectmul;
fixed_t baseyaspectmul; // yaspectmul without a forced aspect ratio
float iyaspectmulfloat;
fixed_t InvZtoScale;
// just for profiling purposes
int linecount;
int loopcount;
//
// precalculated math tables
//
// The xtoviewangleangle[] table maps a screen pixel
// to the lowest viewangle that maps back to x ranges
// from clipangle to -clipangle.
angle_t xtoviewangle[MAXWIDTH+1];
bool foggy; // [RH] ignore extralight and fullbright?
int r_actualextralight;
void (*colfunc) (void);
void (*basecolfunc) (void);
void (*fuzzcolfunc) (void);
void (*transcolfunc) (void);
void (*spanfunc) (void);
void (*hcolfunc_pre) (void);
void (*hcolfunc_post1) (int hx, int sx, int yl, int yh);
void (*hcolfunc_post2) (int hx, int sx, int yl, int yh);
void (STACK_ARGS *hcolfunc_post4) (int sx, int yl, int yh);
cycle_t WallCycles, PlaneCycles, MaskedCycles, WallScanCycles;
// PRIVATE DATA DEFINITIONS ------------------------------------------------
static int lastcenteryfrac;
// CODE --------------------------------------------------------------------
//==========================================================================
//
// viewangletox
//
// Used solely for construction the xtoviewangle table.
//
//==========================================================================
static inline int viewangletox(int i)
{
if (finetangent[i] > FRACUNIT*2)
{
return -1;
}
else if (finetangent[i] < -FRACUNIT*2)
{
return viewwidth+1;
}
else
{
int t = FixedMul(finetangent[i], FocalLengthX);
t = (centerxfrac - t + FRACUNIT-1) >> FRACBITS;
return clamp(t, -1, viewwidth+1);
}
}
//==========================================================================
//
// R_InitTextureMapping
//
//==========================================================================
void R_InitTextureMapping ()
{
int i, x;
// Calc focallength so FieldOfView fineangles covers viewwidth.
FocalLengthX = FixedDiv (centerxfrac, FocalTangent);
FocalLengthY = Scale (centerxfrac, yaspectmul, FocalTangent);
FocalLengthXfloat = (float)FocalLengthX / 65536.f;
// This is 1/FocalTangent before the widescreen extension of FOV.
viewingrangerecip = DivScale32(1, finetangent[FINEANGLES/4+(FieldOfView/2)]);
// [RH] Do not generate viewangletox, because texture mapping is no
// longer done with trig, so it's not needed.
// Now generate xtoviewangle for sky texture mapping.
// We do this with a hybrid approach: The center 90 degree span is
// constructed as per the original code:
// Scan xtoviewangle to find the smallest view angle that maps to x.
// (viewangletox is sorted in non-increasing order.)
// This reduces the chances of "doubling-up" of texture columns in
// the drawn sky texture.
// The remaining arcs are done with tantoangle instead.
const int t1 = MAX<int>(centerx - (FocalLengthX >> FRACBITS), 0);
const int t2 = MIN<int>(centerx + (FocalLengthX >> FRACBITS), viewwidth);
const fixed_t dfocus = FocalLengthX >> DBITS;
for (i = 0, x = t2; x >= t1; --x)
{
while(viewangletox(i) > x)
{
++i;
}
xtoviewangle[x] = (i << ANGLETOFINESHIFT) - ANGLE_90;
}
for (x = t2 + 1; x <= viewwidth; ++x)
{
xtoviewangle[x] = ANGLE_270 + tantoangle[dfocus / (x - centerx)];
}
for (x = 0; x < t1; ++x)
{
xtoviewangle[x] = (angle_t)(-(signed)xtoviewangle[viewwidth - x]);
}
}
//==========================================================================
//
// R_SetVisibility
//
// Changes how rapidly things get dark with distance
//
//==========================================================================
void R_SetVisibility (float vis)
{
// Allow negative visibilities, just for novelty's sake
//vis = clamp (vis, -204.7f, 204.7f);
CurrentVisibility = vis;
if (FocalTangent == 0)
{ // If r_visibility is called before the renderer is all set up, don't
// divide by zero. This will be called again later, and the proper
// values can be initialized then.
return;
}
r_BaseVisibility = xs_RoundToInt(vis * 65536.f);
// Prevent overflow on walls
if (r_BaseVisibility < 0 && r_BaseVisibility < -MaxVisForWall)
r_WallVisibility = -MaxVisForWall;
else if (r_BaseVisibility > 0 && r_BaseVisibility > MaxVisForWall)
r_WallVisibility = MaxVisForWall;
else
r_WallVisibility = r_BaseVisibility;
r_WallVisibility = FixedMul (Scale (InvZtoScale, SCREENWIDTH*BaseRatioSizes[WidescreenRatio][1],
viewwidth*SCREENHEIGHT*3), FixedMul (r_WallVisibility, FocalTangent));
// Prevent overflow on floors/ceilings. Note that the calculation of
// MaxVisForFloor means that planes less than two units from the player's
// view could still overflow, but there is no way to totally eliminate
// that while still using fixed point math.
if (r_BaseVisibility < 0 && r_BaseVisibility < -MaxVisForFloor)
r_FloorVisibility = -MaxVisForFloor;
else if (r_BaseVisibility > 0 && r_BaseVisibility > MaxVisForFloor)
r_FloorVisibility = MaxVisForFloor;
else
r_FloorVisibility = r_BaseVisibility;
r_FloorVisibility = Scale (160*FRACUNIT, r_FloorVisibility, FocalLengthY);
r_TiltVisibility = vis * (float)FocalTangent * (16.f * 320.f) / (float)viewwidth;
r_SpriteVisibility = r_WallVisibility;
}
//==========================================================================
//
// R_GetVisibility
//
//==========================================================================
float R_GetVisibility ()
{
return CurrentVisibility;
}
//==========================================================================
//
// CCMD r_visibility
//
// Controls how quickly light ramps across a 1/z range. Set this, and it
// sets all the r_*Visibility variables (except r_SkyVisibilily, which is
// currently unused).
//
//==========================================================================
CCMD (r_visibility)
{
if (argv.argc() < 2)
{
Printf ("Visibility is %g\n", R_GetVisibility());
}
else if (!netgame)
{
R_SetVisibility ((float)atof (argv[1]));
}
else
{
Printf ("Visibility cannot be changed in net games.\n");
}
}
//==========================================================================
//
// R_SetWindow
//
//==========================================================================
void R_SWRSetWindow(int windowSize, int fullWidth, int fullHeight, int stHeight, int trueratio)
{
int virtheight, virtwidth, virtwidth2, virtheight2;
if (!bRenderingToCanvas)
{ // Set r_viewsize cvar to reflect the current view size
UCVarValue value;
char temp[16];
mysnprintf (temp, countof(temp), "%d x %d", viewwidth, viewheight);
value.String = temp;
r_viewsize.ForceSet (value, CVAR_String);
}
fuzzviewheight = viewheight - 2; // Maximum row the fuzzer can draw to
halfviewwidth = (viewwidth >> 1) - 1;
lastcenteryfrac = 1<<30;
centerxfrac = centerx<<FRACBITS;
centeryfrac = centery<<FRACBITS;
virtwidth = virtwidth2 = fullWidth;
virtheight = virtheight2 = fullHeight;
if (trueratio & 4)
{
virtheight2 = virtheight2 * BaseRatioSizes[trueratio][3] / 48;
}
else
{
virtwidth2 = virtwidth2 * BaseRatioSizes[trueratio][3] / 48;
}
if (WidescreenRatio & 4)
{
virtheight = virtheight * BaseRatioSizes[WidescreenRatio][3] / 48;
}
else
{
virtwidth = virtwidth * BaseRatioSizes[WidescreenRatio][3] / 48;
}
baseyaspectmul = Scale(320 << FRACBITS, virtheight2, r_Yaspect * virtwidth2);
yaspectmul = Scale ((320<<FRACBITS), virtheight, r_Yaspect * virtwidth);
iyaspectmulfloat = (float)virtwidth * r_Yaspect / 320.f / (float)virtheight;
InvZtoScale = yaspectmul * centerx;
WallTMapScale = (float)centerx * 32.f;
WallTMapScale2 = iyaspectmulfloat * 2.f / (float)centerx;
// psprite scales
pspritexscale = (centerxwide << FRACBITS) / 160;
pspriteyscale = FixedMul (pspritexscale, yaspectmul);
pspritexiscale = FixedDiv (FRACUNIT, pspritexscale);
// thing clipping
clearbufshort (screenheightarray, viewwidth, (short)viewheight);
R_InitTextureMapping ();
MaxVisForWall = FixedMul (Scale (InvZtoScale, SCREENWIDTH*r_Yaspect,
viewwidth*SCREENHEIGHT), FocalTangent);
MaxVisForWall = FixedDiv (0x7fff0000, MaxVisForWall);
MaxVisForFloor = Scale (FixedDiv (0x7fff0000, viewheight<<(FRACBITS-2)), FocalLengthY, 160*FRACUNIT);
// Reset r_*Visibility vars
R_SetVisibility (R_GetVisibility ());
}
//==========================================================================
//
// CVAR r_columnmethod
//
// Selects which version of the seg renderers to use.
//
//==========================================================================
CUSTOM_CVAR (Int, r_columnmethod, 1, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
{
if (self != 0 && self != 1)
{
self = 1;
}
else
{ // Trigger the change
setsizeneeded = true;
}
}
//==========================================================================
//
// R_Init
//
//==========================================================================
void R_InitRenderer()
{
atterm(R_ShutdownRenderer);
// viewwidth / viewheight are set by the defaults
clearbufshort (zeroarray, MAXWIDTH, 0);
R_InitPlanes ();
R_InitShadeMaps();
R_InitColumnDrawers ();
colfunc = basecolfunc = R_DrawColumn;
fuzzcolfunc = R_DrawFuzzColumn;
transcolfunc = R_DrawTranslatedColumn;
spanfunc = R_DrawSpan;
// [RH] Horizontal column drawers
hcolfunc_pre = R_DrawColumnHoriz;
hcolfunc_post1 = rt_map1col;
hcolfunc_post4 = rt_map4cols;
}
//==========================================================================
//
// R_ShutdownRenderer
//
//==========================================================================
static void R_ShutdownRenderer()
{
R_DeinitSprites();
R_DeinitPlanes();
// Free openings
if (openings != NULL)
{
M_Free (openings);
openings = NULL;
}
// Free drawsegs
if (drawsegs != NULL)
{
M_Free (drawsegs);
drawsegs = NULL;
}
}
//==========================================================================
//
// R_CopyStackedViewParameters
//
//==========================================================================
void R_CopyStackedViewParameters()
{
stacked_viewx = viewx;
stacked_viewy = viewy;
stacked_viewz = viewz;
stacked_angle = viewangle;
stacked_extralight = extralight;
stacked_visibility = R_GetVisibility();
}
//==========================================================================
//
// R_SetupColormap
//
// Sets up special fixed colormaps
//
//==========================================================================
void R_SetupColormap(player_t *player)
{
realfixedcolormap = NULL;
fixedcolormap = NULL;
fixedlightlev = -1;
if (player != NULL && camera == player->mo)
{
if (player->fixedcolormap >= 0 && player->fixedcolormap < (int)SpecialColormaps.Size())
{
realfixedcolormap = &SpecialColormaps[player->fixedcolormap];
if (RenderTarget == screen && (DFrameBuffer *)screen->Accel2D && r_shadercolormaps)
{
// Render everything fullbright. The copy to video memory will
// apply the special colormap, so it won't be restricted to the
// palette.
fixedcolormap = realcolormaps;
}
else
{
fixedcolormap = SpecialColormaps[player->fixedcolormap].Colormap;
}
}
else if (player->fixedlightlevel >= 0 && player->fixedlightlevel < NUMCOLORMAPS)
{
fixedlightlev = player->fixedlightlevel * 256;
}
}
// [RH] Inverse light for shooting the Sigil
if (fixedcolormap == NULL && extralight == INT_MIN)
{
fixedcolormap = SpecialColormaps[INVERSECOLORMAP].Colormap;
extralight = 0;
}
}
//==========================================================================
//
// R_SetupFreelook
//
// [RH] freelook stuff
//
//==========================================================================
void R_SetupFreelook()
{
{
fixed_t dy;
if (camera != NULL)
{
dy = FixedMul (FocalLengthY, finetangent[(ANGLE_90-viewpitch)>>ANGLETOFINESHIFT]);
}
else
{
dy = 0;
}
centeryfrac = (viewheight << (FRACBITS-1)) + dy;
centery = centeryfrac >> FRACBITS;
globaluclip = FixedDiv (-centeryfrac, InvZtoScale);
globaldclip = FixedDiv ((viewheight<<FRACBITS)-centeryfrac, InvZtoScale);
//centeryfrac &= 0xffff0000;
int e, i;
i = 0;
e = viewheight;
fixed_t focus = FocalLengthY;
fixed_t den;
if (i < centery)
{
den = centeryfrac - (i << FRACBITS) - FRACUNIT/2;
if (e <= centery)
{
do {
yslope[i] = FixedDiv (focus, den);
den -= FRACUNIT;
} while (++i < e);
}
else
{
do {
yslope[i] = FixedDiv (focus, den);
den -= FRACUNIT;
} while (++i < centery);
den = (i << FRACBITS) - centeryfrac + FRACUNIT/2;
do {
yslope[i] = FixedDiv (focus, den);
den += FRACUNIT;
} while (++i < e);
}
}
else
{
den = (i << FRACBITS) - centeryfrac + FRACUNIT/2;
do {
yslope[i] = FixedDiv (focus, den);
den += FRACUNIT;
} while (++i < e);
}
}
}
void R_SetupPolymost()
{
if (r_polymost)
{
polyclipped = RP_SetupFrame (false);
}
}
//==========================================================================
//
// R_EnterMirror
//
// [RH] Draw the reflection inside a mirror
//
//==========================================================================
void R_EnterMirror (drawseg_t *ds, int depth)
{
angle_t startang = viewangle;
fixed_t startx = viewx;
fixed_t starty = viewy;
CurrentMirror++;
unsigned int mirrorsAtStart = WallMirrors.Size ();
vertex_t *v1 = ds->curline->v1;
// Reflect the current view behind the mirror.
if (ds->curline->linedef->dx == 0)
{ // vertical mirror
viewx = v1->x - startx + v1->x;
}
else if (ds->curline->linedef->dy == 0)
{ // horizontal mirror
viewy = v1->y - starty + v1->y;
}
else
{ // any mirror--use floats to avoid integer overflow
vertex_t *v2 = ds->curline->v2;
float dx = FIXED2FLOAT(v2->x - v1->x);
float dy = FIXED2FLOAT(v2->y - v1->y);
float x1 = FIXED2FLOAT(v1->x);
float y1 = FIXED2FLOAT(v1->y);
float x = FIXED2FLOAT(startx);
float y = FIXED2FLOAT(starty);
// the above two cases catch len == 0
float r = ((x - x1)*dx + (y - y1)*dy) / (dx*dx + dy*dy);
viewx = FLOAT2FIXED((x1 + r * dx)*2 - x);
viewy = FLOAT2FIXED((y1 + r * dy)*2 - y);
}
viewangle = 2*R_PointToAngle2 (ds->curline->v1->x, ds->curline->v1->y,
ds->curline->v2->x, ds->curline->v2->y) - startang;
viewsin = finesine[viewangle>>ANGLETOFINESHIFT];
viewcos = finecosine[viewangle>>ANGLETOFINESHIFT];
viewtansin = FixedMul (FocalTangent, viewsin);
viewtancos = FixedMul (FocalTangent, viewcos);
R_CopyStackedViewParameters();
validcount++;
ActiveWallMirror = ds->curline;
R_ClearPlanes (false);
R_ClearClipSegs (ds->x1, ds->x2 + 1);
memcpy (ceilingclip + ds->x1, openings + ds->sprtopclip, (ds->x2 - ds->x1 + 1)*sizeof(*ceilingclip));
memcpy (floorclip + ds->x1, openings + ds->sprbottomclip, (ds->x2 - ds->x1 + 1)*sizeof(*floorclip));
WindowLeft = ds->x1;
WindowRight = ds->x2;
MirrorFlags = (depth + 1) & 1;
R_RenderBSPNode (nodes + numnodes - 1);
R_3D_ResetClip(); // reset clips (floor/ceiling)
R_DrawPlanes ();
R_DrawSkyBoxes ();
// Allow up to 4 recursions through a mirror
if (depth < 4)
{
unsigned int mirrorsAtEnd = WallMirrors.Size ();
for (; mirrorsAtStart < mirrorsAtEnd; mirrorsAtStart++)
{
R_EnterMirror (drawsegs + WallMirrors[mirrorsAtStart], depth + 1);
}
}
else
{
depth = depth;
}
viewangle = startang;
viewx = startx;
viewy = starty;
}
//==========================================================================
//
// R_SetupBuffer
//
// Precalculate all row offsets and fuzz table.
//
//==========================================================================
void R_SetupBuffer ()
{
static BYTE *lastbuff = NULL;
int pitch = RenderTarget->GetPitch();
BYTE *lineptr = RenderTarget->GetBuffer() + viewwindowy*pitch + viewwindowx;
if (dc_pitch != pitch || lineptr != lastbuff)
{
if (dc_pitch != pitch)
{
dc_pitch = pitch;
R_InitFuzzTable (pitch);
#if defined(X86_ASM) || defined(X64_ASM)
ASM_PatchPitch ();
#endif
}
dc_destorg = lineptr;
for (int i = 0; i < RenderTarget->GetHeight(); i++)
{
ylookup[i] = i * pitch;
}
}
}
//==========================================================================
//
// R_RenderActorView
//
//==========================================================================
void R_RenderActorView (AActor *actor, bool dontmaplines)
{
WallCycles.Reset();
PlaneCycles.Reset();
MaskedCycles.Reset();
WallScanCycles.Reset();
fakeActive = 0; // kg3D - reset fake floor idicator
R_3D_ResetClip(); // reset clips (floor/ceiling)
R_SetupBuffer ();
R_SetupFrame (actor);
// Clear buffers.
R_ClearClipSegs (0, viewwidth);
R_ClearDrawSegs ();
R_ClearPlanes (true);
R_ClearSprites ();
NetUpdate ();
// [RH] Show off segs if r_drawflat is 1
if (r_drawflat)
{
hcolfunc_pre = R_FillColumnHorizP;
hcolfunc_post1 = rt_copy1col;
hcolfunc_post4 = rt_copy4cols;
colfunc = R_FillColumnP;
spanfunc = R_FillSpan;
}
else
{
hcolfunc_pre = R_DrawColumnHoriz;
hcolfunc_post1 = rt_map1col;
hcolfunc_post4 = rt_map4cols;
colfunc = basecolfunc;
spanfunc = R_DrawSpan;
}
WindowLeft = 0;
WindowRight = viewwidth - 1;
MirrorFlags = 0;
ActiveWallMirror = NULL;
r_dontmaplines = dontmaplines;
// [RH] Hack to make windows into underwater areas possible
r_fakingunderwater = false;
// [RH] Setup particles for this frame
P_FindParticleSubsectors ();
WallCycles.Clock();
DWORD savedflags = camera->renderflags;
// Never draw the player unless in chasecam mode
if (!r_showviewer)
{
camera->renderflags |= RF_INVISIBLE;
}
// Link the polyobjects right before drawing the scene to reduce the amounts of calls to this function
PO_LinkToSubsectors();
if (r_polymost < 2)
{
R_RenderBSPNode (nodes + numnodes - 1); // The head node is the last node output.
R_3D_ResetClip(); // reset clips (floor/ceiling)
}
camera->renderflags = savedflags;
WallCycles.Unclock();
NetUpdate ();
if (viewactive)
{
PlaneCycles.Clock();
R_DrawPlanes ();
R_DrawSkyBoxes ();
PlaneCycles.Unclock();
// [RH] Walk through mirrors
size_t lastmirror = WallMirrors.Size ();
for (unsigned int i = 0; i < lastmirror; i++)
{
R_EnterMirror (drawsegs + WallMirrors[i], 0);
}
NetUpdate ();
MaskedCycles.Clock();
R_DrawMasked ();
MaskedCycles.Unclock();
NetUpdate ();
if (r_polymost)
{
RP_RenderBSPNode (nodes + numnodes - 1);
if (polyclipped)
{
RP_SetupFrame (true);
RP_RenderBSPNode (nodes + numnodes - 1);
}
}
}
WallMirrors.Clear ();
interpolator.RestoreInterpolations ();
R_SetupBuffer ();
// If we don't want shadered colormaps, NULL it now so that the
// copy to the screen does not use a special colormap shader.
if (!r_shadercolormaps)
{
realfixedcolormap = NULL;
}
}
//==========================================================================
//
// R_RenderViewToCanvas
//
// Pre: Canvas is already locked.
//
//==========================================================================
void R_RenderViewToCanvas (AActor *actor, DCanvas *canvas,
int x, int y, int width, int height, bool dontmaplines)
{
const bool savedviewactive = viewactive;
viewwidth = width;
RenderTarget = canvas;
bRenderingToCanvas = true;
R_SetWindow (12, width, height, height);
viewwindowx = x;
viewwindowy = y;
viewactive = true;
R_RenderActorView (actor, dontmaplines);
RenderTarget = screen;
bRenderingToCanvas = false;
R_ExecuteSetViewSize ();
screen->Lock (true);
R_SetupBuffer ();
screen->Unlock ();
viewactive = savedviewactive;
}
//==========================================================================
//
// R_MultiresInit
//
// Called from V_SetResolution()
//
//==========================================================================
void R_MultiresInit ()
{
R_PlaneInitData ();
}
//==========================================================================
//
// STAT fps
//
// Displays statistics about rendering times
//
//==========================================================================
extern cycle_t WallCycles, PlaneCycles, MaskedCycles, WallScanCycles;
extern cycle_t FrameCycles;
ADD_STAT (fps)
{
FString out;
out.Format("frame=%04.1f ms walls=%04.1f ms planes=%04.1f ms masked=%04.1f ms",
FrameCycles.TimeMS(), WallCycles.TimeMS(), PlaneCycles.TimeMS(), MaskedCycles.TimeMS());
return out;
}
static double f_acc, w_acc,p_acc,m_acc;
static int acc_c;
ADD_STAT (fps_accumulated)
{
f_acc += FrameCycles.TimeMS();
w_acc += WallCycles.TimeMS();
p_acc += PlaneCycles.TimeMS();
m_acc += MaskedCycles.TimeMS();
acc_c++;
FString out;
out.Format("frame=%04.1f ms walls=%04.1f ms planes=%04.1f ms masked=%04.1f ms %d counts",
f_acc/acc_c, w_acc/acc_c, p_acc/acc_c, m_acc/acc_c, acc_c);
Printf(PRINT_LOG, "%s\n", out.GetChars());
return out;
}
//==========================================================================
//
// STAT wallcycles
//
// Displays the minimum number of cycles spent drawing walls
//
//==========================================================================
static double bestwallcycles = HUGE_VAL;
ADD_STAT (wallcycles)
{
FString out;
double cycles = WallCycles.Time();
if (cycles && cycles < bestwallcycles)
bestwallcycles = cycles;
out.Format ("%g", bestwallcycles);
return out;
}
//==========================================================================
//
// CCMD clearwallcycles
//
// Resets the count of minimum wall drawing cycles
//
//==========================================================================
CCMD (clearwallcycles)
{
bestwallcycles = HUGE_VAL;
}
#if 1
// To use these, also uncomment the clock/unclock in wallscan
static double bestscancycles = HUGE_VAL;
ADD_STAT (scancycles)
{
FString out;
double scancycles = WallScanCycles.Time();
if (scancycles && scancycles < bestscancycles)
bestscancycles = scancycles;
out.Format ("%g", bestscancycles);
return out;
}
CCMD (clearscancycles)
{
bestscancycles = HUGE_VAL;
}
#endif
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