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-rw-r--r--src/gui/painting/qblendfunctions_p.h97
1 files changed, 34 insertions, 63 deletions
diff --git a/src/gui/painting/qblendfunctions_p.h b/src/gui/painting/qblendfunctions_p.h
index 080da98ec4..2f5ed36c73 100644
--- a/src/gui/painting/qblendfunctions_p.h
+++ b/src/gui/painting/qblendfunctions_p.h
@@ -1,41 +1,5 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the QtGui module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QBLENDFUNCTIONS_P_H
#define QBLENDFUNCTIONS_P_H
@@ -125,7 +89,7 @@ void qt_scale_image_16bit(uchar *destPixels, int dbpl,
if (xend < 0 || xend >= (int)(sbpl/sizeof(SRC)))
--w;
- while (h--) {
+ while (--h >= 0) {
const SRC *src = (const SRC *) (srcPixels + (srcy >> 16) * sbpl);
quint32 srcx = basex;
int x = 0;
@@ -216,7 +180,7 @@ template <typename T> void qt_scale_image_32bit(uchar *destPixels, int dbpl,
if (xend < 0 || xend >= (int)(sbpl/sizeof(quint32)))
--w;
- while (h--) {
+ while (--h >= 0) {
const uint *src = (const quint32 *) (srcPixels + (srcy >> 16) * sbpl);
quint32 srcx = basex;
int x = 0;
@@ -246,25 +210,32 @@ void qt_transform_image_rasterize(DestT *destPixels, int dbpl,
int dudx, int dvdx, int dudy, int dvdy, int u0, int v0,
Blender blender)
{
- int fromY = qMax(qRound(topY), clip.top());
- int toY = qMin(qRound(bottomY), clip.top() + clip.height());
+ qint64 fromY = qMax(qRound(topY), clip.top());
+ qint64 toY = qMin(qRound(bottomY), clip.top() + clip.height());
if (fromY >= toY)
return;
qreal leftSlope = (bottomLeft.x - topLeft.x) / (bottomLeft.y - topLeft.y);
qreal rightSlope = (bottomRight.x - topRight.x) / (bottomRight.y - topRight.y);
- int dx_l = int(leftSlope * 0x10000);
- int dx_r = int(rightSlope * 0x10000);
- int x_l = int((topLeft.x + (qreal(0.5) + fromY - topLeft.y) * leftSlope + qreal(0.5)) * 0x10000);
- int x_r = int((topRight.x + (qreal(0.5) + fromY - topRight.y) * rightSlope + qreal(0.5)) * 0x10000);
-
- int fromX, toX, x1, x2, u, v, i, ii;
+ qint64 dx_l = qint64(leftSlope * 0x10000);
+ qint64 dx_r = qint64(rightSlope * 0x10000);
+ qint64 x_l = qint64((topLeft.x + (qreal(0.5) + fromY - topLeft.y) * leftSlope + qreal(0.5)) * 0x10000);
+ qint64 x_r = qint64((topRight.x + (qreal(0.5) + fromY - topRight.y) * rightSlope + qreal(0.5)) * 0x10000);
+
+ qint64 sourceRectTop = qint64(sourceRect.top());
+ qint64 sourceRectLeft = qint64(sourceRect.left());
+ qint64 sourceRectWidth = qint64(sourceRect.width());
+ qint64 sourceRectHeight = qint64(sourceRect.height());
+ qint64 clipLeft = qint64(clip.left());
+ qint64 clipWidth = qint64(clip.width());
+
+ qint64 fromX, toX, x1, x2, u, v, i, ii;
DestT *line;
- for (int y = fromY; y < toY; ++y) {
+ for (qint64 y = fromY; y < toY; ++y) {
line = reinterpret_cast<DestT *>(reinterpret_cast<uchar *>(destPixels) + y * dbpl);
- fromX = qMax(x_l >> 16, clip.left());
- toX = qMin(x_r >> 16, clip.left() + clip.width());
+ fromX = qMax(x_l >> 16, clipLeft);
+ toX = qMin(x_r >> 16, clipLeft + clipWidth);
if (fromX < toX) {
// Because of rounding, we can get source coordinates outside the source image.
// Clamp these coordinates to the source rect to avoid segmentation fault and
@@ -275,10 +246,10 @@ void qt_transform_image_rasterize(DestT *destPixels, int dbpl,
u = x1 * dudx + y * dudy + u0;
v = x1 * dvdx + y * dvdy + v0;
for (; x1 < toX; ++x1) {
- int uu = u >> 16;
- int vv = v >> 16;
- if (uu >= sourceRect.left() && uu < sourceRect.left() + sourceRect.width()
- && vv >= sourceRect.top() && vv < sourceRect.top() + sourceRect.height()) {
+ qint64 uu = u >> 16;
+ qint64 vv = v >> 16;
+ if (uu >= sourceRectLeft && uu < sourceRectLeft + sourceRectWidth
+ && vv >= sourceRectTop && vv < sourceRectTop + sourceRectHeight) {
break;
}
u += dudx;
@@ -290,10 +261,10 @@ void qt_transform_image_rasterize(DestT *destPixels, int dbpl,
u = (x2 - 1) * dudx + y * dudy + u0;
v = (x2 - 1) * dvdx + y * dvdy + v0;
for (; x2 > x1; --x2) {
- int uu = u >> 16;
- int vv = v >> 16;
- if (uu >= sourceRect.left() && uu < sourceRect.left() + sourceRect.width()
- && vv >= sourceRect.top() && vv < sourceRect.top() + sourceRect.height()) {
+ qint64 uu = u >> 16;
+ qint64 vv = v >> 16;
+ if (uu >= sourceRectLeft && uu < sourceRectLeft + sourceRectWidth
+ && vv >= sourceRectTop && vv < sourceRectTop + sourceRectHeight) {
break;
}
u -= dudx;
@@ -308,8 +279,8 @@ void qt_transform_image_rasterize(DestT *destPixels, int dbpl,
// Beginning of the scan line, with per-pixel checks.
i = x1 - fromX;
while (i) {
- int uu = qBound(sourceRect.left(), u >> 16, sourceRect.left() + sourceRect.width() - 1);
- int vv = qBound(sourceRect.top(), v >> 16, sourceRect.top() + sourceRect.height() - 1);
+ qint64 uu = qBound(sourceRectLeft, u >> 16, sourceRectLeft + sourceRectWidth - 1);
+ qint64 vv = qBound(sourceRectTop, v >> 16, sourceRectTop + sourceRectHeight - 1);
blender.write(line, reinterpret_cast<const SrcT *>(reinterpret_cast<const uchar *>(srcPixels) + vv * sbpl)[uu]);
u += dudx;
v += dvdx;
@@ -348,8 +319,8 @@ void qt_transform_image_rasterize(DestT *destPixels, int dbpl,
// End of the scan line, with per-pixel checks.
i = toX - x2;
while (i) {
- int uu = qBound(sourceRect.left(), u >> 16, sourceRect.left() + sourceRect.width() - 1);
- int vv = qBound(sourceRect.top(), v >> 16, sourceRect.top() + sourceRect.height() - 1);
+ qint64 uu = qBound(sourceRectLeft, u >> 16, sourceRectLeft + sourceRectWidth - 1);
+ qint64 vv = qBound(sourceRectTop, v >> 16, sourceRectTop + sourceRectHeight - 1);
blender.write(line, reinterpret_cast<const SrcT *>(reinterpret_cast<const uchar *>(srcPixels) + vv * sbpl)[uu]);
u += dudx;
v += dvdx;
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-24 03:50:36 +0000