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neo/renderer/ScreenRect.cpp

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+/*
+===========================================================================
+
+Doom 3 BFG Edition GPL Source Code
+Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company. 
+
+This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").  
+
+Doom 3 BFG Edition Source Code is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+Doom 3 BFG Edition Source Code is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Doom 3 BFG Edition Source Code.  If not, see <http://www.gnu.org/licenses/>.
+
+In addition, the Doom 3 BFG Edition Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 BFG Edition Source Code.  If not, please request a copy in writing from id Software at the address below.
+
+If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
+
+===========================================================================
+*/
+
+#pragma hdrstop
+#include "../idlib/precompiled.h"
+
+#include "tr_local.h"
+
+/*
+==========================================================================================
+
+idScreenRect
+
+==========================================================================================
+*/
+
+/*
+======================
+idScreenRect::Clear
+======================
+*/
+void idScreenRect::Clear() {
+	x1 = y1 = 32000;
+	x2 = y2 = -32000;
+	zmin = 0.0f;
+	zmax = 1.0f;
+}
+
+/*
+======================
+idScreenRect::AddPoint
+======================
+*/
+void idScreenRect::AddPoint( float x, float y ) {
+	int	ix = idMath::Ftoi( x );
+	int iy = idMath::Ftoi( y );
+
+	if ( ix < x1 ) {
+		x1 = ix;
+	}
+	if ( ix > x2 ) {
+		x2 = ix;
+	}
+	if ( iy < y1 ) {
+		y1 = iy;
+	}
+	if ( iy > y2 ) {
+		y2 = iy;
+	}
+}
+
+/*
+======================
+idScreenRect::Expand
+======================
+*/
+void idScreenRect::Expand() {
+	x1--;
+	y1--;
+	x2++;
+	y2++;
+}
+
+/*
+======================
+idScreenRect::Intersect
+======================
+*/
+void idScreenRect::Intersect( const idScreenRect &rect ) {
+	if ( rect.x1 > x1 ) {
+		x1 = rect.x1;
+	}
+	if ( rect.x2 < x2 ) {
+		x2 = rect.x2;
+	}
+	if ( rect.y1 > y1 ) {
+		y1 = rect.y1;
+	}
+	if ( rect.y2 < y2 ) {
+		y2 = rect.y2;
+	}
+}
+
+/*
+======================
+idScreenRect::Union
+======================
+*/
+void idScreenRect::Union( const idScreenRect &rect ) {
+	if ( rect.x1 < x1 ) {
+		x1 = rect.x1;
+	}
+	if ( rect.x2 > x2 ) {
+		x2 = rect.x2;
+	}
+	if ( rect.y1 < y1 ) {
+		y1 = rect.y1;
+	}
+	if ( rect.y2 > y2 ) {
+		y2 = rect.y2;
+	}
+}
+
+/*
+======================
+idScreenRect::Equals
+======================
+*/
+bool idScreenRect::Equals( const idScreenRect &rect ) const {
+	return ( x1 == rect.x1 && x2 == rect.x2 && y1 == rect.y1 && y2 == rect.y2 );
+}
+
+/*
+======================
+idScreenRect::IsEmpty
+======================
+*/
+bool idScreenRect::IsEmpty() const {
+	return ( x1 > x2 || y1 > y2 );
+}
+
+/*
+======================
+R_ShowColoredScreenRect
+======================
+*/
+void R_ShowColoredScreenRect( const idScreenRect &rect, int colorIndex ) {
+	if ( !rect.IsEmpty() ) {
+		static idVec4 colors[] = { colorRed, colorGreen, colorBlue, colorYellow, colorMagenta, colorCyan, colorWhite, colorPurple };
+		tr.viewDef->renderWorld->DebugScreenRect( colors[colorIndex & 7], rect, tr.viewDef );
+	}
+}