void GLWall::RenderWall(int textured, unsigned int *store)
{
static texcoord tcs[4]; // making this variable static saves us a relatively costly stack integrity check.
bool split = (gl_seamless && !(textured&RWF_NOSPLIT) && seg->sidedef != NULL && !(seg->sidedef->Flags & WALLF_POLYOBJ) && !(flags & GLWF_NOSPLIT));
tcs[0]=lolft;
tcs[1]=uplft;
tcs[2]=uprgt;
tcs[3]=lorgt;
if ((flags&GLWF_GLOW) && (textured & RWF_GLOW))
{
gl_RenderState.SetGlowPlanes(topplane, bottomplane);
gl_RenderState.SetGlowParams(topglowcolor, bottomglowcolor);
}
if (!(textured & RWF_NORENDER))
{
gl_RenderState.Apply();
gl_RenderState.ApplyLightIndex(dynlightindex);
}
// the rest of the code is identical for textured rendering and lights
FFlatVertex *ptr = GLRenderer->mVBO->GetBuffer();
unsigned int count, offset;
ptr->Set(glseg.x1, zbottom[0], glseg.y1, tcs[0].u, tcs[0].v);
ptr++;
if (split && glseg.fracleft == 0) SplitLeftEdge(tcs, ptr);
ptr->Set(glseg.x1, ztop[0], glseg.y1, tcs[1].u, tcs[1].v);
ptr++;
if (split && !(flags & GLWF_NOSPLITUPPER)) SplitUpperEdge(tcs, ptr);
ptr->Set(glseg.x2, ztop[1], glseg.y2, tcs[2].u, tcs[2].v);
ptr++;
if (split && glseg.fracright == 1) SplitRightEdge(tcs, ptr);
ptr->Set(glseg.x2, zbottom[1], glseg.y2, tcs[3].u, tcs[3].v);
ptr++;
if (split && !(flags & GLWF_NOSPLITLOWER)) SplitLowerEdge(tcs, ptr);
count = GLRenderer->mVBO->GetCount(ptr, &offset);
if (!(textured & RWF_NORENDER))
{
GLRenderer->mVBO->RenderArray(GL_TRIANGLE_FAN, offset, count);
vertexcount += count;
}
if (store != NULL)
{
store[0] = offset;
store[1] = count;
}
}
void GLWall::MakeVertices(bool nosplit)
{
if (vertcount == 0)
{
bool split = (gl_seamless && !nosplit && seg->sidedef != NULL && !(seg->sidedef->Flags & WALLF_POLYOBJ) && !(flags & GLWF_NOSPLIT));
FFlatVertex *ptr = GLRenderer->mVBO->GetBuffer();
ptr->Set(glseg.x1, zbottom[0], glseg.y1, tcs[LOLFT].u, tcs[LOLFT].v);
ptr++;
if (split && glseg.fracleft == 0) SplitLeftEdge(ptr);
ptr->Set(glseg.x1, ztop[0], glseg.y1, tcs[UPLFT].u, tcs[UPLFT].v);
ptr++;
if (split && !(flags & GLWF_NOSPLITUPPER)) SplitUpperEdge(ptr);
ptr->Set(glseg.x2, ztop[1], glseg.y2, tcs[UPRGT].u, tcs[UPRGT].v);
ptr++;
if (split && glseg.fracright == 1) SplitRightEdge(ptr);
ptr->Set(glseg.x2, zbottom[1], glseg.y2, tcs[LORGT].u, tcs[LORGT].v);
ptr++;
if (split && !(flags & GLWF_NOSPLITLOWER)) SplitLowerEdge(ptr);
vertcount = GLRenderer->mVBO->GetCount(ptr, &vertindex);
}
}
void GLWall::RenderWall(int textured, float * color2, ADynamicLight * light)
{
texcoord tcs[4];
bool glowing;
bool split = (gl_seamless && !(textured&4) && !seg->bPolySeg);
if (!light)
{
tcs[0]=lolft;
tcs[1]=uplft;
tcs[2]=uprgt;
tcs[3]=lorgt;
glowing = !!(flags&GLWF_GLOW) && (textured & 2);
}
else
{
if (!PrepareLight(tcs, light)) return;
glowing = false;
}
if (glowing) gl_RenderState.SetGlowParams(topglowcolor, bottomglowcolor);
gl_RenderState.Apply(!!(flags & GLWF_NOSHADER));
// the rest of the code is identical for textured rendering and lights
gl.Begin(GL_TRIANGLE_FAN);
// lower left corner
if (glowing) gl.VertexAttrib2f(VATTR_GLOWDISTANCE, zceil[0] - zbottom[0], zbottom[0] - zfloor[0]);
if (textured&1) gl.TexCoord2f(tcs[0].u,tcs[0].v);
gl.Vertex3f(glseg.x1,zbottom[0],glseg.y1);
if (split && glseg.fracleft==0) SplitLeftEdge(tcs, glowing);
// upper left corner
if (glowing) gl.VertexAttrib2f(VATTR_GLOWDISTANCE, zceil[0] - ztop[0], ztop[0] - zfloor[0]);
if (textured&1) gl.TexCoord2f(tcs[1].u,tcs[1].v);
gl.Vertex3f(glseg.x1,ztop[0],glseg.y1);
if (split && !(flags & GLWF_NOSPLITUPPER)) SplitUpperEdge(tcs, glowing);
// color for right side
if (color2) gl.Color4fv(color2);
// upper right corner
if (glowing) gl.VertexAttrib2f(VATTR_GLOWDISTANCE, zceil[1] - ztop[1], ztop[1] - zfloor[1]);
if (textured&1) gl.TexCoord2f(tcs[2].u,tcs[2].v);
gl.Vertex3f(glseg.x2,ztop[1],glseg.y2);
if (split && glseg.fracright==1) SplitRightEdge(tcs, glowing);
// lower right corner
if (glowing) gl.VertexAttrib2f(VATTR_GLOWDISTANCE, zceil[1] - zbottom[1], zbottom[1] - zfloor[1]);
if (textured&1) gl.TexCoord2f(tcs[3].u,tcs[3].v);
gl.Vertex3f(glseg.x2,zbottom[1],glseg.y2);
if (split && !(flags & GLWF_NOSPLITLOWER)) SplitLowerEdge(tcs, glowing);
gl.End();
vertexcount+=4;
}
void GLWall::RenderWall(int textured)
{
gl_RenderState.Apply();
gl_RenderState.ApplyLightIndex(dynlightindex);
#ifdef NO_VBO
bool nosplit = !!(textured&RWF_NOSPLIT);
bool split = (gl_seamless && !nosplit && seg->sidedef != NULL && !(seg->sidedef->Flags & WALLF_POLYOBJ) && !(flags & GLWF_NOSPLIT));
#if 1 // A bit quicker due to batching, still not very fast..
glBegin(GL_TRIANGLE_FAN);
// lower left corner
if (textured&1) glTexCoord2f(tcs[0].u,tcs[0].v);
glVertex3f(glseg.x1,zbottom[0],glseg.y1);
//if (split && glseg.fracleft==0) SplitLeftEdge(tcs);
// upper left corner
if (textured&1) glTexCoord2f(tcs[1].u,tcs[1].v);
glVertex3f(glseg.x1,ztop[0],glseg.y1);
//if (split && !(flags & GLWF_NOSPLITUPPER)) SplitUpperEdge(tcs);
// color for right side
//if (color2) glColor4fv(color2);
// upper right corner
if (textured&1) glTexCoord2f(tcs[2].u,tcs[2].v);
glVertex3f(glseg.x2,ztop[1],glseg.y2);
//if (split && glseg.fracright==1) SplitRightEdge(tcs);
// lower right corner
if (textured&1) glTexCoord2f(tcs[3].u,tcs[3].v);
glVertex3f(glseg.x2,zbottom[1],glseg.y2);
//if (split && !(flags & GLWF_NOSPLITLOWER)) SplitLowerEdge(tcs);
glEnd();
vertexcount+=4;
#else
static FFlatVertex vtx[100]; // Yes this is static. It's only used once, and I think it's faster as the address doesn't keep changing
FFlatVertex *ptr = &vtx[0];
ptr->Set(glseg.x1, zbottom[0], glseg.y1, tcs[LOLFT].u, tcs[LOLFT].v);
ptr++;
if (split && glseg.fracleft == 0) SplitLeftEdge(ptr);
ptr->Set(glseg.x1, ztop[0], glseg.y1, tcs[UPLFT].u, tcs[UPLFT].v);
ptr++;
if (split && !(flags & GLWF_NOSPLITUPPER)) SplitUpperEdge(ptr);
ptr->Set(glseg.x2, ztop[1], glseg.y2, tcs[UPRGT].u, tcs[UPRGT].v);
ptr++;
if (split && glseg.fracright == 1) SplitRightEdge(ptr);
ptr->Set(glseg.x2, zbottom[1], glseg.y2, tcs[LORGT].u, tcs[LORGT].v);
ptr++;
if (split && !(flags & GLWF_NOSPLITLOWER)) SplitLowerEdge(ptr);
// We can workout how many from the difference in pointers
vertcount = (ptr - &vtx[0]);
glTexCoordPointer(2,GL_FLOAT, sizeof(FFlatVertex),&vtx[0].u);
glVertexPointer (3,GL_FLOAT, sizeof(FFlatVertex),&vtx[0].x);
glEnableClientState (GL_VERTEX_ARRAY);
glEnableClientState (GL_TEXTURE_COORD_ARRAY);
glDisableClientState (GL_COLOR_ARRAY);
glBindBuffer (GL_ARRAY_BUFFER, 0); // NO VBO
glDrawArrays (GL_TRIANGLE_FAN, 0, vertcount);
vertexcount += vertcount;
#endif
#else
if (gl.buffermethod != BM_DEFERRED)
{
MakeVertices(!!(textured&RWF_NOSPLIT));
}
else if (vertcount == 0)
{
// This should never happen but in case it actually does, use the quad drawer as fallback (without edge splitting.)
// This way it at least gets drawn.
FQuadDrawer qd;
qd.Set(0, glseg.x1, zbottom[0], glseg.y1, tcs[LOLFT].u, tcs[LOLFT].v);
qd.Set(1, glseg.x1, ztop[0], glseg.y1, tcs[UPLFT].u, tcs[UPLFT].v);
qd.Set(2, glseg.x2, ztop[1], glseg.y2, tcs[UPRGT].u, tcs[UPRGT].v);
qd.Set(3, glseg.x2, zbottom[1], glseg.y2, tcs[LORGT].u, tcs[LORGT].v);
qd.Render(GL_TRIANGLE_FAN);
vertexcount += 4;
return;
}
GLRenderer->mVBO->RenderArray(GL_TRIANGLE_FAN, vertindex, vertcount);
vertexcount += vertcount;
#endif
}
