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- removed render.cpp, now that everything is in its proper place.

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Christoph Oelckers 2021-03-18 17:24:58 +01:00
parent 547ed4e415
commit 0579368626
3 changed files with 0 additions and 625 deletions
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1
source/CMakeLists.txt
View file

@ -1074,7 +1074,6 @@ set (PCH_SOURCES
core/rendering/hw_entrypoint.cpp
core/rendering/scene/hw_clipper.cpp
core/rendering/scene/hw_walls.cpp
core/rendering/render.cpp
core/rendering/scene/hw_drawlistadd.cpp
core/rendering/scene/hw_drawlist.cpp
core/rendering/scene/hw_drawinfo.cpp

622
source/core/rendering/render.cpp
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@ -1,622 +0,0 @@
// renderer draft. This code is not for release!
#include "glbackend/glbackend.h"
#include "build.h"
#include "hw_vrmodes.h"
#include "v_draw.h"
#include "gamecvars.h"
#include "binaryangle.h"
#include "automap.h"
#include "hw_clipper.h"
#include "hw_drawstructs.h"
#include "hw_clock.h"
#include "render.h"
#include "printf.h"
#include "v_video.h"
#include "flatvertices.h"
#include "gamefuncs.h"
#include "hw_drawinfo.h"
angle_t FrustumAngle(float ratio, float fov, float pitch)
{
float tilt = fabs(pitch);
// If the pitch is larger than this you can look all around at a FOV of 90°
if (tilt > 46.0f) return 0xffffffff;
// ok, this is a gross hack that barely works...
// but at least it doesn't overestimate too much...
// todo: integrate roll into the calculation
double floatangle = 2.0 + (45.0 + ((tilt / 1.9))) * fov * 48.0 / AspectMultiplier(ratio) / 90.0;
angle_t a1 = DAngle(floatangle).BAMs();
if (a1 >= ANGLE_180) return 0xffffffff;
return a1;
}
#define NS namespace Newrender { // auto-format blocking #define.
NS
struct FBunch
{
int sectnum;
int startline;
int endline;
angle_t startangle; // in pseudo angles for the clipper
angle_t endangle;
};
// ----------------------------------------------------------------------------
//
// Bunches are groups of continuous lines
// This array stores the amount of points per bunch,
// the view angles for each point and the line index for the starting line
//
// ----------------------------------------------------------------------------
class BunchDrawer
{
public:
Clipper &clipper;
int LastBunch;
int StartTime;
TArray<FBunch> Bunches;
TArray<int> CompareData;
double viewx, viewy;
FixedBitArray<MAXSECTORS> gotsector;
//==========================================================================
//
//
//
//==========================================================================
public:
BunchDrawer(Clipper& c, vec2_t& view) : clipper(c)
{
viewx = view.x * (1/ 16.f);
viewy = view.y * -(1/ 16.f);
StartScene();
clipper.SetViewpoint(DVector2(viewx, viewy));
for (int i = 0; i < numwalls; i++)
{
// Precalculate the clip angles to avoid doing this repeatedly during level traversal.
// Reverse the orientation so that startangle and endangle are properly ordered.
wall[i].clipangle = 0 - clipper.PointToPseudoAngle(wall[i].x * (1 / 16.f), wall[i].y * (-1 / 16.f));
}
}
//==========================================================================
//
//
//
//==========================================================================
private:
void StartScene()
{
LastBunch = 0;
StartTime = I_msTime();
Bunches.Clear();
CompareData.Clear();
gotsector.Zero();
}
//==========================================================================
//
//
//
//==========================================================================
void StartBunch(int sectnum, int linenum, angle_t startan, angle_t endan)
{
FBunch* bunch = &Bunches[LastBunch = Bunches.Reserve(1)];
bunch->sectnum = sectnum;
bunch->startline = bunch->endline = linenum;
bunch->startangle = startan;
bunch->endangle = endan;
}
//==========================================================================
//
//
//
//==========================================================================
void AddLineToBunch(int line, int newan)
{
Bunches[LastBunch].endline++;
Bunches[LastBunch].endangle = newan;
}
//==========================================================================
//
//
//
//==========================================================================
void DeleteBunch(int index)
{
Bunches[index] = Bunches.Last();
Bunches.Pop();
}
bool CheckClip(walltype* wal)
{
auto pt2 = &wall[wal->point2];
sectortype* backsector = &sector[wal->nextsector];
sectortype* frontsector = &sector[wall[wal->nextwall].nextsector];
float bs_floorheight1;
float bs_floorheight2;
float bs_ceilingheight1;
float bs_ceilingheight2;
float fs_floorheight1;
float fs_floorheight2;
float fs_ceilingheight1;
float fs_ceilingheight2;
// Mirrors and horizons always block the view
//if (linedef->special==Line_Mirror || linedef->special==Line_Horizon) return true;
PlanesAtPoint(frontsector, wal->x, wal->y, &fs_ceilingheight1, &fs_floorheight1);
PlanesAtPoint(frontsector, pt2->x, pt2->y, &fs_ceilingheight2, &fs_floorheight2);
PlanesAtPoint(backsector, wal->x, wal->y, &bs_ceilingheight1, &bs_floorheight1);
PlanesAtPoint(backsector, pt2->x, pt2->y, &bs_ceilingheight2, &bs_floorheight2);
// now check for closed sectors! No idea if we really need the sky checks. We'll see.
if (bs_ceilingheight1 <= fs_floorheight1 && bs_ceilingheight2 <= fs_floorheight2)
{
// backsector's ceiling is below frontsector's floor.
if (frontsector->ceilingstat & backsector->ceilingstat & CSTAT_SECTOR_SKY) return false;
return true;
}
if (fs_ceilingheight1 <= bs_floorheight1 && fs_ceilingheight2 <= bs_floorheight2)
{
// backsector's floor is above frontsector's ceiling
if (frontsector->floorstat & backsector->floorstat & CSTAT_SECTOR_SKY) return false;
return true;
}
if (bs_ceilingheight1 <= bs_floorheight1 && bs_ceilingheight2 <= bs_floorheight2)
{
// backsector is closed
if (frontsector->ceilingstat & backsector->ceilingstat & CSTAT_SECTOR_SKY) return false;
if (frontsector->floorstat & backsector->floorstat & CSTAT_SECTOR_SKY) return false;
return true;
}
return false;
}
//==========================================================================
//
// ClipLine
// Clips the given segment
//
//==========================================================================
enum
{
CL_Skip = 0,
CL_Draw = 1,
CL_Pass = 2,
};
int ClipLine(int line)
{
angle_t startAngle, endAngle;
auto wal = &wall[line];
startAngle = wal->clipangle;
endAngle = wall[wal->point2].clipangle;
// Back side, i.e. backface culling - read: endAngle >= startAngle!
if (startAngle - endAngle < ANGLE_180)
{
return CL_Skip;
}
if (!clipper.SafeCheckRange(startAngle, endAngle))
{
return CL_Skip;
}
if (wal->nextwall == -1 || (wal->cstat & CSTAT_WALL_1WAY) || CheckClip(wal))
{
// one-sided
clipper.SafeAddClipRange(startAngle, endAngle);
return CL_Draw;
}
else
{
return CL_Draw | CL_Pass;
}
}
//==========================================================================
//
//
//
//==========================================================================
void ProcessBunch(int bnch)
{
FBunch* bunch = &Bunches[bnch];
ClipWall.Clock();
for (int i = bunch->startline; i <= bunch->endline; i++)
{
int clipped = ClipLine(i);
if (clipped & CL_Draw)
{
show2dwall.Set(i);
//if (gl_render_walls)
{
SetupWall.Clock();
HWWall hwwall;
//Printf("Rendering wall %d\n", i);
hwwall.Process(nullptr, &wall[i], &sector[bunch->sectnum], wall[i].nextsector<0? nullptr : &sector[wall[i].nextsector]);
rendered_lines++;
SetupWall.Unclock();
}
}
if (clipped & CL_Pass)
{
ClipWall.Unclock();
ProcessSector(wall[i].nextsector);
ClipWall.Clock();
}
}
ClipWall.Unclock();
}
//==========================================================================
//
//
//
//==========================================================================
int WallInFront(int wall1, int wall2)
{
double x1s = WallStartX(wall1);
double y1s = WallStartY(wall1);
double x1e = WallEndX(wall1);
double y1e = WallEndY(wall1);
double x2s = WallStartX(wall2);
double y2s = WallStartY(wall2);
double x2e = WallEndX(wall2);
double y2e = WallEndY(wall2);
double dx = x1e - x1s;
double dy = y1e - y1s;
double t1 = PointOnLineSide(x2s, y2s, x1s, y1s, dx, dy);
double t2 = PointOnLineSide(x2e, y2e, x1s, y1s, dx, dy);
if (t1 == 0)
{
if (t2 == 0) return(-1);
t1 = t2;
}
if (t2 == 0) t2 = t1;
if ((t1 * t2) >= 0)
{
t2 = PointOnLineSide(viewx, viewy, x1s, y1s, dx, dy);
return((t2 * t1) < 0);
}
dx = x2e - x2s;
dy = y2e - y2s;
t1 = PointOnLineSide(x1s, y1s, x2s, y2s, dx, dy);
t2 = PointOnLineSide(x1e, y1e, x2s, y2s, dx, dy);
if (t1 == 0)
{
if (t2 == 0) return(-1);
t1 = t2;
}
if (t2 == 0) t2 = t1;
if ((t1 * t2) >= 0)
{
t2 = PointOnLineSide(viewx, viewy, x2s, y2s, dx, dy);
return((t2 * t1) >= 0);
}
return(-2);
}
//==========================================================================
//
// This is a bit more complicated than it looks because angles can wrap
// around so we can only compare angle differences.
//
// Rules:
// 1. Any bunch can span at most 180°.
// 2. 2 bunches can never overlap at both ends
// 3. if there is an overlap one of the 2 starting points must be in the
// overlapping area.
//
//==========================================================================
int BunchInFront(FBunch* b1, FBunch* b2)
{
angle_t anglecheck, endang;
if (b2->startangle - b1->startangle < b1->endangle - b1->startangle)
{
// we have an overlap at b2->startangle
anglecheck = b2->startangle - b1->startangle;
// Find the wall in b1 that overlaps b2->startangle
for (int i = b1->startline; i <= b1->endline; i++)
{
endang = wall[wall[i].point2].clipangle - b1->startangle;
if (endang > anglecheck)
{
// found a line
int ret = WallInFront(b2->startline, i);
return ret;
}
}
}
else if (b1->startangle - b2->startangle < b2->endangle - b2->startangle)
{
// we have an overlap at b1->startangle
anglecheck = b1->startangle - b2->startangle;
// Find the wall in b2 that overlaps b1->startangle
for (int i = b2->startline; i <= b2->endline; i++)
{
endang = wall[wall[i].point2].clipangle - b2->startangle;
if (endang > anglecheck)
{
// found a line
int ret = WallInFront(i, b1->startline);
return ret;
}
}
}
// we have no overlap
return -1;
}
//==========================================================================
//
//
//
//==========================================================================
int FindClosestBunch()
{
int closest = 0; //Almost works, but not quite :(
CompareData.Clear();
for (unsigned i = 1; i < Bunches.Size(); i++)
{
switch (BunchInFront(&Bunches[i], &Bunches[closest]))
{
case 0: // i is in front
closest = i;
continue;
case 1: // i is behind
continue;
default: // can't determine
CompareData.Push(i); // mark for later comparison
continue;
}
}
// we need to do a second pass to see how the marked bunches relate to the currently closest one.
for (unsigned i = 0; i < CompareData.Size(); i++)
{
switch (BunchInFront(&Bunches[CompareData[i]], &Bunches[closest]))
{
case 0: // is in front
closest = CompareData[i];
CompareData[i] = CompareData.Last();
CompareData.Pop();
i = 0; // we need to recheck everything that's still marked.
continue;
case 1: // is behind
CompareData[i] = CompareData.Last();
CompareData.Pop();
i--;
continue;
default:
continue;
}
}
return closest;
}
//==========================================================================
//
//
//
//==========================================================================
void ProcessSector(int sectnum)
{
if (gotsector[sectnum]) return;
gotsector.Set(sectnum);
Bsp.Clock();
auto sect = &sector[sectnum];
bool inbunch;
angle_t startangle;
//if (sect->validcount == StartTime) return;
//sect->validcount = StartTime;
#if 0//ndef BUILD_TEST
DoSector(sectnum, false);
#endif
//Todo: process subsectors
inbunch = false;
for (int i = 0; i < sect->wallnum; i++)
{
auto thiswall = &wall[sect->wallptr + i];
#ifdef _DEBUG
// For displaying positions in debugger
DVector2 start = { WallStartX(thiswall), WallStartY(thiswall) };
DVector2 end = { WallStartX(thiswall->point2), WallStartY(thiswall->point2) };
#endif
angle_t ang1 = thiswall->clipangle;
angle_t ang2 = wall[thiswall->point2].clipangle;
if (ang1 - ang2 < ANGLE_180)
{
// Backside
inbunch = false;
}
else if (!clipper.SafeCheckRange(ang1, ang2))
{
// is it visible?
inbunch = false;
}
else if (!inbunch || ang2 - startangle >= ANGLE_180)
{
// don't let a bunch span more than 180° to avoid problems.
// This limitation ensures that the combined range of 2
// bunches will always be less than 360° which simplifies
// the distance comparison code because it prevents a
// situation where 2 bunches may overlap at both ends.
startangle = ang1;
StartBunch(sectnum, sect->wallptr + i, ang1, ang2);
inbunch = true;
}
else
{
AddLineToBunch(sect->wallptr + i, ang2);
}
if (thiswall->point2 != sect->wallptr + i + 1) inbunch = false;
}
Bsp.Unclock();
}
//==========================================================================
//
//
//
//==========================================================================
public:
void RenderScene(int viewsector)
{
ProcessSector(viewsector);
while (Bunches.Size() > 0)
{
int closest = FindClosestBunch();
ProcessBunch(closest);
DeleteBunch(closest);
}
}
};
//-----------------------------------------------------------------------------
//
// R_FrustumAngle
//
//-----------------------------------------------------------------------------
static void SetProjection(const FRotator& rotation, FAngle fov)
{
auto vrmode = VRMode::GetVRMode(false);
const int eyeCount = vrmode->mEyeCount;
const auto& eye = vrmode->mEyes[0];
int width = (windowxy2.x - windowxy1.x + 1);
int height = (windowxy2.y - windowxy1.y + 1);
float ratio = ActiveRatio(width, height, nullptr);
float fovratio;
if (ratio >= 1.3f)
{
fovratio = 1.333333f;
}
else
{
fovratio = ratio;
}
auto rotmat = eye.GetProjection(fov.Degrees, ratio, fovratio);
renderSetProjectionMatrix(rotmat.get());
}
static void SetViewMatrix(const FRotator& angles, float vx, float vy, float vz, bool mirror, bool planemirror)
{
float mult = mirror ? -1.f : 1.f;
float planemult = planemirror ? -1.f : 1.f;// Level->info->pixelstretch : Level->info->pixelstretch;
VSMatrix mViewMatrix;
mViewMatrix.loadIdentity();
mViewMatrix.rotate(angles.Roll.Degrees, 0.0f, 0.0f, 1.0f);
mViewMatrix.rotate(angles.Pitch.Degrees, 1.0f, 0.0f, 0.0f);
mViewMatrix.rotate(angles.Yaw.Degrees, 0.0f, mult, 0.0f);
mViewMatrix.translate(vx * mult, -vz * planemult, -vy);
mViewMatrix.scale(-mult, planemult, 1);
renderSetViewMatrix(mViewMatrix.get());
}
}
using namespace Newrender;
void render_drawrooms_(vec3_t& position, int sectnum, fixed_t q16angle, fixed_t q16horizon, float rollang, float fov, bool mirror, bool planemirror)
{
GLInterface.ClearDepth();
GLInterface.EnableBlend(false);
GLInterface.EnableAlphaTest(false);
GLInterface.EnableDepthTest(true);
GLInterface.SetDepthFunc(DF_LEqual);
GLInterface.SetRenderStyle(LegacyRenderStyles[STYLE_Translucent]);
FRotator rotation;
rotation.Yaw = -90.f + q16ang(q16angle).asdeg();
rotation.Pitch = -HorizToPitch(q16horizon);
rotation.Roll = rollang;
GLInterface.SetViewport(windowxy1.x, windowxy1.y, windowxy2.x - windowxy1.x + 1, windowxy2.y - windowxy1.y + 1);
SetProjection(rotation, fov);
SetViewMatrix(rotation, position.x / 16.f, -position.y / 16.f, -position.z / 256.f, mirror, planemirror);
renderSetViewpoint(position.x / 16.f, -position.y / 16.f, -position.z / 256.f);
renderSetVisibility((2 / 65536.f) * g_visibility / r_ambientlight); // (2 / 65536.f) is a magic factor to produce the same brightness as Polymost.
renderBeginScene();
Clipper clipper;
// fixme: This does not consider the roll angle yet. Pitch disabled to get consistent values during testing.
auto fa = FrustumAngle(16.f / 9, r_fov, 0);// rotation.Pitch.Degrees);
angle_t rotang = q16ang(q16angle).asbam();
clipper.SafeAddClipRangeRealAngles(rotang + fa, rotang - fa);
Newrender::BunchDrawer drawer(clipper, position.vec2);
drawer.RenderScene(sectnum);
renderFinishScene();
GLInterface.SetDepthFunc(DF_LEqual);
}

2
source/core/rendering/render.h
View file

@ -2,5 +2,3 @@
#include "build.h"
void render_drawrooms(vec3_t& position, int sectnum, fixed_t q16angle, fixed_t q16horizon, float rollang, bool mirror, bool planemirror);
void render_drawrooms_(vec3_t& position, int sectnum, fixed_t q16angle, fixed_t q16horizon, float rollang, float fov, bool mirror, bool planemirror);