camwnd.cpp

quake3工具源码。包括生成bsp文件

{
	m_nCambuttonstate = buttons;
	if (!buttons)
		return;
	m_ptButton.x = x;
	m_ptButton.y = y;

	if (buttons == (MK_RBUTTON|MK_CONTROL) )
	{
		Cam_PositionDrag ();
		Sys_UpdateWindows (W_XY|W_CAMERA|W_Z);
		return;
	}

	GetCursorPos(&m_ptCursor);

	if (buttons & (MK_LBUTTON | MK_MBUTTON) )
	{
		Drag_MouseMoved (x, y, buttons);
		Sys_UpdateWindows (W_XY|W_CAMERA|W_Z);
	}
}


void CCamWnd::InitCull()
{
	int		i;

	VectorSubtract (m_Camera.vpn, m_Camera.vright, m_vCull1);
	VectorAdd (m_Camera.vpn, m_Camera.vright, m_vCull2);

	for (i=0 ; i<3 ; i++)
	{
		if (m_vCull1[i] > 0)
			m_nCullv1[i] = 3+i;
		else
			m_nCullv1[i] = i;
		if (m_vCull2[i] > 0)
			m_nCullv2[i] = 3+i;
		else
			m_nCullv2[i] = i;
	}
}

qboolean CCamWnd::CullBrush (brush_t *b)
{
	int		i;
	vec3_t	point;
	float	d;

	if (g_PrefsDlg.m_bCubicClipping)
	{
		float fLevel = g_PrefsDlg.m_nCubicScale * 64;

		point[0] = m_Camera.origin[0] - fLevel;
		point[1] = m_Camera.origin[1] - fLevel;
		point[2] = m_Camera.origin[2] - fLevel;

		for (i=0; i<3; i++)
			if (b->mins[i] < point[i] && b->maxs[i] < point[i])
				return true;

		point[0] = m_Camera.origin[0] + fLevel;
		point[1] = m_Camera.origin[1] + fLevel;
		point[2] = m_Camera.origin[2] + fLevel;
	
		for (i=0; i<3; i++)
			if (b->mins[i] > point[i] && b->maxs[i] > point[i])
				return true;
	}


	for (i=0 ; i<3 ; i++)
		point[i] = b->mins[m_nCullv1[i]] - m_Camera.origin[i];

	d = DotProduct (point, m_vCull1);
	if (d < -1)
		return true;

	for (i=0 ; i<3 ; i++)
		point[i] = b->mins[m_nCullv2[i]] - m_Camera.origin[i];

	d = DotProduct (point, m_vCull2);
	if (d < -1)
		return true;

	return false;
}

#if 0
void CCamWnd::DrawLightRadius(brush_t* pBrush)
{
  // if lighting
  int nRadius = Brush_LightRadius(pBrush);
  if (nRadius > 0)
  {
    Brush_SetLightColor(pBrush);
	  qglEnable (GL_BLEND);
	  qglPolygonMode (GL_FRONT_AND_BACK, GL_LINE);
	  qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	  qglDisable (GL_TEXTURE_2D);

    qglEnable(GL_TEXTURE_2D);
    qglDisable(GL_BLEND);
    qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
  }
}
#endif

/*
==============
Cam_Draw
==============
*/

void CCamWnd::Cam_Draw()
{
	brush_t	*brush;
	face_t	*face;
	float	screenaspect;
	float	yfov;
	double	start, end;
	int		i;

	/*
  FILE *f = fopen("g:/nardo/raduffy/editorhack.dat", "w");
  if (f != NULL) {
    fwrite(&m_Camera.origin[0], sizeof(float), 1, f);
    fwrite(&m_Camera.origin[1], sizeof(float), 1, f);
    fwrite(&m_Camera.origin[2], sizeof(float), 1, f);
		fwrite(&m_Camera.angles[PITCH], sizeof(float), 1, f);
		fwrite(&m_Camera.angles[YAW], sizeof(float), 1, f);
    fclose(f);
  }
	*/
	
	if (!active_brushes.next)
		return;	// not valid yet
	
	if (m_Camera.timing)
		start = Sys_DoubleTime ();
	
	//
	// clear
	//
	QE_CheckOpenGLForErrors();
	
	qglViewport(0, 0, m_Camera.width, m_Camera.height);
	qglScissor(0, 0, m_Camera.width, m_Camera.height);
	qglClearColor (g_qeglobals.d_savedinfo.colors[COLOR_CAMERABACK][0],
		g_qeglobals.d_savedinfo.colors[COLOR_CAMERABACK][1],
		g_qeglobals.d_savedinfo.colors[COLOR_CAMERABACK][2], 0);
	qglClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
	
	//
	// set up viewpoint
	//
	vec5_t lightPos;
	
	if (g_PrefsDlg.m_bGLLighting)
	{
		qglEnable(GL_LIGHTING);
		//qglEnable(GL_LIGHT0);
		
		lightPos[0] = lightPos[1] = lightPos[2] = 3.5;
		lightPos[3] = 1.0;
		qglLightModelfv(GL_LIGHT_MODEL_AMBIENT, lightPos);
		//qglLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
		//lightPos[0] = lightPos[1] = lightPos[2] = 3.5;
    //qglLightfv(GL_LIGHT0, GL_AMBIENT, lightPos);
	}
	else
	{
		qglDisable(GL_LIGHTING);
	}
	
	qglMatrixMode(GL_PROJECTION);
	qglLoadIdentity ();
	
	screenaspect = (float)m_Camera.width / m_Camera.height;
	yfov = 2*atan((float)m_Camera.height / m_Camera.width)*180/Q_PI;
	qgluPerspective (yfov,  screenaspect,  2,  8192);
	
	qglRotatef (-90,  1, 0, 0);	    // put Z going up
	qglRotatef (90,  0, 0, 1);	    // put Z going up
	qglRotatef (m_Camera.angles[0],  0, 1, 0);
	qglRotatef (-m_Camera.angles[1],  0, 0, 1);
	qglTranslatef (-m_Camera.origin[0],  -m_Camera.origin[1],  -m_Camera.origin[2]);
	
	Cam_BuildMatrix ();
	
	
	//if (m_Camera.draw_mode == cd_light)
	//{
//	if (g_PrefsDlg.m_bGLLighting)
//	{
//		VectorCopy(m_Camera.origin, lightPos);
//		lightPos[3] = 1;
//		qglLightfv(GL_LIGHT0, GL_POSITION, lightPos);
//	}
	//}
	
	InitCull ();
	
	//
	// draw stuff
	//
	GLfloat lAmbient[] = {1.0, 1.0, 1.0, 1.0};
	
	switch (m_Camera.draw_mode)
	{
	case cd_wire:
		qglPolygonMode (GL_FRONT_AND_BACK, GL_LINE);
		qglDisable(GL_TEXTURE_2D);
		qglDisable(GL_TEXTURE_1D);
		qglDisable(GL_BLEND);
		qglDisable(GL_DEPTH_TEST);
		qglColor3f(1.0, 1.0, 1.0);
		//		qglEnable (GL_LINE_SMOOTH);
		break;
		
	case cd_solid:
		qglCullFace(GL_FRONT);
		qglEnable(GL_CULL_FACE);
		qglShadeModel (GL_FLAT);
		qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
		qglDisable(GL_TEXTURE_2D);
		qglDisable(GL_BLEND);
		qglEnable(GL_DEPTH_TEST);
		qglDepthFunc (GL_LEQUAL);
		break;
		
	case cd_texture:
		qglCullFace(GL_FRONT);
		qglEnable(GL_CULL_FACE);
		qglShadeModel (GL_FLAT);
		qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
		qglEnable(GL_TEXTURE_2D);
		qglTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
		qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
		qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
		qglDisable(GL_BLEND);
		qglEnable(GL_DEPTH_TEST);
		qglDepthFunc (GL_LEQUAL);
		break;
		
	case cd_blend:
		qglCullFace(GL_FRONT);
		qglEnable(GL_CULL_FACE);
		qglShadeModel (GL_FLAT);
		qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
		qglEnable(GL_TEXTURE_2D);
		qglTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
		qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
		qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
		qglDisable(GL_DEPTH_TEST);
		qglEnable (GL_BLEND);
		qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
		break;
	}
	
	qglMatrixMode(GL_TEXTURE);
	
	m_nNumTransBrushes = 0;
	
	for (brush = active_brushes.next ; brush != &active_brushes ; brush=brush->next)
	{
		//DrawLightRadius(brush);
		
		if (CullBrush (brush))
			continue;
		
		if (FilterBrush (brush))
			continue;
		
		if ((brush->brush_faces->texdef.flags & (SURF_TRANS33 | SURF_TRANS66)) || (brush->brush_faces->d_texture->bFromShader && brush->brush_faces->d_texture->fTrans != 1.0))
		{
			m_TransBrushes [ m_nNumTransBrushes++ ] = brush;
		} 
		else 
		{
			//--      if (brush->patchBrush)
			//--			  m_TransBrushes [ m_nNumTransBrushes++ ] = brush;
			//--      else
			Brush_Draw(brush);
		}
		
		
	}
	
	if (g_PrefsDlg.m_bGLLighting)
	{
		qglDisable (GL_LIGHTING);
	}
	
	//
	//qglDepthMask ( 0 ); // Don't write to depth buffer
	qglEnable ( GL_BLEND );
	qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	for ( i = 0; i < m_nNumTransBrushes; i++ ) 
		Brush_Draw (m_TransBrushes[i]);
	
	//qglDepthMask ( 1 ); // Ok, write now
	
	qglMatrixMode(GL_PROJECTION);
	
	//
	// now draw selected brushes
	//
	
	if (g_PrefsDlg.m_bGLLighting)
	{
		qglEnable (GL_LIGHTING);
	}
	
	qglTranslatef (g_qeglobals.d_select_translate[0], g_qeglobals.d_select_translate[1], g_qeglobals.d_select_translate[2]);
	qglMatrixMode(GL_TEXTURE);
	
	brush_t* pList = (g_bClipMode && g_pSplitList) ? g_pSplitList : &selected_brushes;
	// draw normally
	for (brush = pList->next ; brush != pList ; brush=brush->next)
	{
		//DrawLightRadius(brush);
		//if (brush->patchBrush && g_qeglobals.d_select_mode == sel_curvepoint)
		//  continue;
		
		Brush_Draw(brush);
	}
	
	// blend on top
	qglMatrixMode(GL_PROJECTION);
	
	
	qglDisable (GL_LIGHTING);
	qglColor4f(1.0, 0.0, 0.0, 0.3);
	qglEnable (GL_BLEND);
	qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
	qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	qglDisable (GL_TEXTURE_2D);
	for (brush = pList->next ; brush != pList ; brush=brush->next)
	{
		if (brush->patchBrush && g_qeglobals.d_select_mode == sel_curvepoint)
			continue;
		
		for (face=brush->brush_faces ; face ; face=face->next)
			Face_Draw( face );
	}
	
 
  int nCount = g_ptrSelectedFaces.GetSize();
	if (nCount > 0)
  {
    for (int i = 0; i < nCount; i++)
    {
      face_t *selFace = reinterpret_cast<face_t*>(g_ptrSelectedFaces.GetAt(i));
		  Face_Draw(selFace);
    }
  }
		
	// non-zbuffered outline
	
	qglDisable (GL_BLEND);
	qglDisable (GL_DEPTH_TEST);
	qglPolygonMode (GL_FRONT_AND_BACK, GL_LINE);
	qglColor3f (1, 1, 1);
	for (brush = pList->next ; brush != pList ; brush=brush->next)
	{
		if (g_qeglobals.dontDrawSelectedOutlines || (brush->patchBrush && g_qeglobals.d_select_mode == sel_curvepoint))
			continue;
		
		for (face=brush->brush_faces ; face ; face=face->next)
			Face_Draw( face );
	}
	
	
	// edge / vertex flags
	
	if (g_qeglobals.d_select_mode == sel_vertex)
	{
		qglPointSize (4);
		qglColor3f (0,1,0);
		qglBegin (GL_POINTS);
		for (i=0 ; i<g_qeglobals.d_numpoints ; i++)
			qglVertex3fv (g_qeglobals.d_points[i]);
		qglEnd ();
		qglPointSize (1);
	}
	else if (g_qeglobals.d_select_mode == sel_edge)
	{
		float	*v1, *v2;
		
		qglPointSize (4);
		qglColor3f (0,0,1);
		qglBegin (GL_POINTS);
		for (i=0 ; i<g_qeglobals.d_numedges ; i++)
		{
			v1 = g_qeglobals.d_points[g_qeglobals.d_edges[i].p1];
			v2 = g_qeglobals.d_points[g_qeglobals.d_edges[i].p2];
			qglVertex3f ( (v1[0]+v2[0])*0.5,(v1[1]+v2[1])*0.5,(v1[2]+v2[2])*0.5);
		}
		qglEnd ();
		qglPointSize (1);
	}
	
	//
	// draw pointfile
	//
	qglEnable(GL_DEPTH_TEST);
	
	DrawPathLines ();
	
	
	
	if (g_qeglobals.d_pointfile_display_list)
	{
		Pointfile_Draw();
		//		glCallList (g_qeglobals.d_pointfile_display_list);
	}
	
	// bind back to the default texture so that we don't have problems
	// elsewhere using/modifying texture maps between contexts
	qglBindTexture( GL_TEXTURE_2D, 0 );
	
#if 0
	// area selection hack
	if (g_qeglobals.d_select_mode == sel_area)
	{
		qglEnable (GL_BLEND);
		qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
		qglColor4f(0.0, 0.0, 1.0, 0.25);
		qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
		qglRectfv(g_qeglobals.d_vAreaTL, g_qeglobals.d_vAreaBR);
		qglDisable (GL_BLEND);
	}
#endif
	
	qglFinish();
	QE_CheckOpenGLForErrors();
	//	Sys_EndWait();
	if (m_Camera.timing)
	{
		end = Sys_DoubleTime ();
		Sys_Printf ("Camera: %i ms\n", (int)(1000*(end-start)));
	}
}


void CCamWnd::OnSize(UINT nType, int cx, int cy) 
{
	CWnd::OnSize(nType, cx, cy);
  CRect rect;
  GetClientRect(rect);
	m_Camera.width = rect.right;
	m_Camera.height = rect.bottom;
	InvalidateRect(NULL, false);
}

void CCamWnd::BenchMark()
{
	PAINTSTRUCT	ps;
  CRect rct;
  GetWindowRect(rct);
  long lStyle = ::GetWindowLong(GetSafeHwnd(), GWL_STYLE);
  ::SetWindowLong(GetSafeHwnd(), GWL_STYLE, QE3_CHILDSTYLE);
  CWnd* pParent = GetParent();
  SetParent(g_pParentWnd);
  MoveWindow(CRect(30, 30, 400, 400), TRUE);

  BeginPaint(&ps);
  if (!qwglMakeCurrent(ps.hdc, g_qeglobals.d_hglrcBase))
		Error ("wglMakeCurrent failed in Benchmark");
  
	qglDrawBuffer (GL_FRONT);
	double dStart = Sys_DoubleTime ();
	for (int i=0 ; i < 100 ; i++)
	{
		m_Camera.angles[YAW] = i*4;
		Cam_Draw();
	}
	qwglSwapBuffers(ps.hdc);
	qglDrawBuffer (GL_BACK);
	double dEnd = Sys_DoubleTime ();
	EndPaint(&ps);
	Sys_Printf ("%5.2f seconds\n", dEnd - dStart);
  ::SetWindowLong(GetSafeHwnd(), GWL_STYLE, lStyle);
  SetParent(pParent);
  MoveWindow(rct, TRUE);
}

void CCamWnd::ReInitGL()
{

  qwglMakeCurrent(0,0);
	QEW_SetupPixelFormat(GetDC()->m_hDC, true);
  if (!qwglMakeCurrent(g_qeglobals.d_hdcBase, g_qeglobals.d_hglrcBase))
	  Error ("wglMakeCurrent failed");

  return;

  long lStyle = ::GetWindowLong(GetSafeHwnd(), GWL_STYLE);
  int nID = ::GetWindowLong(GetSafeHwnd(), GWL_ID);
  CWnd* pParent = GetParent();
  CRect rctClient;
  GetClientRect(rctClient);
  DestroyWindow();
  Create(CAMERA_WINDOW_CLASS, "", lStyle, rctClient, pParent, nID);
}

void CCamWnd::OnKeyUp(UINT nChar, UINT nRepCnt, UINT nFlags) 
{
  g_pParentWnd->HandleKey(nChar, nRepCnt, nFlags, false);
}

// Timo
// brush primitive texture shifting, using camera view to select translations :
void CCamWnd::ShiftTexture_BrushPrimit(face_t *f, int x, int y)
{
	vec3_t texS,texT;
	vec3_t viewX,viewY;
	int XS,XT,YS,YT;
	int outS,outT;
#ifdef _DEBUG
	if (!g_qeglobals.m_bBrushPrimitMode)
	{
		Sys_Printf("Warning : unexpected call to CCamWnd::ShiftTexture_BrushPrimit with brush primitive mode disbaled\n");
		return;
	}
#endif
	// compute face axis base
	ComputeAxisBase( f->plane.normal, texS, texT );
	// compute camera view vectors
	VectorCopy( m_Camera.vup, viewY );
	VectorCopy( m_Camera.vright, viewX );
	// compute best vectors
	ComputeBest2DVector( viewX, texS, texT, XS, XT );
	ComputeBest2DVector( viewY, texS, texT, YS, YT );
	// check this is not a degenerate case
	if ( ( XS == YS ) && ( XT == YT ) )
	{
#ifdef _DEBUG
		Sys_Printf("Warning : degenerate best vectors axis base in CCamWnd::ShiftTexture_BrushPrimit\n");
#endif
		// forget it
		Select_ShiftTexture_BrushPrimit( f, x, y );
		return;
	}
	// compute best fitted translation in face axis base
	outS = XS*x + YS*y;
	outT = XT*x + YT*y;
	// call actual texture shifting code
	Select_ShiftTexture_BrushPrimit( f, outS, outT );
}