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Diffstat (limited to 'tests/auto/qtessellator/utils.cpp')
-rw-r--r-- | tests/auto/qtessellator/utils.cpp | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/tests/auto/qtessellator/utils.cpp b/tests/auto/qtessellator/utils.cpp deleted file mode 100644 index 5790983445..0000000000 --- a/tests/auto/qtessellator/utils.cpp +++ /dev/null @@ -1,93 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the test suite of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** This file may be used under the terms of the GNU Lesser General Public -** License version 2.1 as published by the Free Software Foundation and -** appearing in the file LICENSE.LGPL included in the packaging of this -** file. Please review the following information to ensure the GNU Lesser -** General Public License version 2.1 requirements will be met: -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU General -** Public License version 3.0 as published by the Free Software Foundation -** and appearing in the file LICENSE.GPL included in the packaging of this -** file. Please review the following information to ensure the GNU General -** Public License version 3.0 requirements will be met: -** http://www.gnu.org/copyleft/gpl.html. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ -#include "utils.h" - -#include <assert.h> -#include <qglobal.h> - -#include "qnum.h" - -#define FloatToXFixed(i) (int)((i) * 65536) -#define IntToXFixed(i) ((i) << 16) - -static double compute_x_at(XFixed y, XPointFixed p1, XPointFixed p2) -{ - double d = XFixedToDouble(p2.x - p1.x); - return - XFixedToDouble(p1.x) + d*XFixedToDouble(y - p1.y)/XFixedToDouble(p2.y - p1.y); -} - -double compute_area(XTrapezoid *trap) -{ - double x1 = compute_x_at(trap->top, trap->left.p1, trap->left.p2); - double x2 = compute_x_at(trap->top, trap->right.p1, trap->right.p2); - double x3 = compute_x_at(trap->bottom, trap->left.p1, trap->left.p2); - double x4 = compute_x_at(trap->bottom, trap->right.p1, trap->right.p2); - - double top = XFixedToDouble(trap->top); - double bottom = XFixedToDouble(trap->bottom); - double h = bottom - top; - - double top_base = x2 - x1; - double bottom_base = x4 - x3; - - if ((top_base < 0 && bottom_base > 0) - || (top_base > 0 && bottom_base < 0)) { - double y0 = top_base*h/(top_base - bottom_base) + top; - double area = qAbs(top_base * (y0 - top) / 2.); - area += qAbs(bottom_base * (bottom - y0) /2.); - return area; - } - - - return 0.5 * h * qAbs(top_base + bottom_base); -} - -double compute_area_for_x(const QVector<XTrapezoid> &traps) -{ - double area = 0; - - for (int i = 0; i < traps.size(); ++i) { - XTrapezoid trap = traps[i]; - area += compute_area(&trap); - } - return area; -} |