mirror of
https://github.com/ZDoom/qzdoom.git
synced 2024-12-16 23:40:55 +00:00
97 lines
2 KiB
C++
97 lines
2 KiB
C++
//
|
|
// 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.
|
|
//
|
|
|
|
#include <stdlib.h>
|
|
#include <float.h>
|
|
|
|
#include "templates.h"
|
|
#include "i_system.h"
|
|
#include "w_wad.h"
|
|
#include "doomdef.h"
|
|
#include "doomstat.h"
|
|
#include "r_sky.h"
|
|
#include "stats.h"
|
|
#include "v_video.h"
|
|
#include "a_sharedglobal.h"
|
|
#include "c_console.h"
|
|
#include "cmdlib.h"
|
|
#include "d_net.h"
|
|
#include "g_level.h"
|
|
#include "gl/dynlights/gl_dynlight.h"
|
|
#include "swrenderer/plane/r_visibleplane.h"
|
|
#include "swrenderer/plane/r_planerenderer.h"
|
|
|
|
namespace swrenderer
|
|
{
|
|
void PlaneRenderer::RenderLines(VisiblePlane *pl)
|
|
{
|
|
// t1/b1 are at x
|
|
// t2/b2 are at x+1
|
|
// spanend[y] is at the right edge
|
|
|
|
int x = pl->right - 1;
|
|
int t2 = pl->top[x];
|
|
int b2 = pl->bottom[x];
|
|
|
|
if (b2 > t2)
|
|
{
|
|
fillshort(spanend + t2, b2 - t2, x);
|
|
}
|
|
|
|
for (--x; x >= pl->left; --x)
|
|
{
|
|
int t1 = pl->top[x];
|
|
int b1 = pl->bottom[x];
|
|
const int xr = x + 1;
|
|
int stop;
|
|
|
|
// Draw any spans that have just closed
|
|
stop = MIN(t1, b2);
|
|
while (t2 < stop)
|
|
{
|
|
int y = t2++;
|
|
int x2 = spanend[y];
|
|
RenderLine(y, xr, x2);
|
|
}
|
|
stop = MAX(b1, t2);
|
|
while (b2 > stop)
|
|
{
|
|
int y = --b2;
|
|
int x2 = spanend[y];
|
|
RenderLine(y, xr, x2);
|
|
}
|
|
|
|
// Mark any spans that have just opened
|
|
stop = MIN(t2, b1);
|
|
while (t1 < stop)
|
|
{
|
|
spanend[t1++] = x;
|
|
}
|
|
stop = MAX(b2, t2);
|
|
while (b1 > stop)
|
|
{
|
|
spanend[--b1] = x;
|
|
}
|
|
|
|
t2 = pl->top[x];
|
|
b2 = pl->bottom[x];
|
|
}
|
|
// Draw any spans that are still open
|
|
while (t2 < b2)
|
|
{
|
|
int y = --b2;
|
|
int x2 = spanend[y];
|
|
RenderLine(y, pl->left, x2);
|
|
}
|
|
}
|
|
}
|