summaryrefslogtreecommitdiffstats
path: root/src/gui/painting/qimagescale_neon.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/gui/painting/qimagescale_neon.cpp')
-rw-r--r--src/gui/painting/qimagescale_neon.cpp238
1 files changed, 121 insertions, 117 deletions
diff --git a/src/gui/painting/qimagescale_neon.cpp b/src/gui/painting/qimagescale_neon.cpp
index 4ae113b002..074b819862 100644
--- a/src/gui/painting/qimagescale_neon.cpp
+++ b/src/gui/painting/qimagescale_neon.cpp
@@ -1,52 +1,47 @@
-/****************************************************************************
-**
-** 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
#include "qimagescale_p.h"
#include "qimage.h"
#include <private/qsimd_p.h>
+#if QT_CONFIG(thread) && !defined(Q_OS_WASM)
+#include <qsemaphore.h>
+#include <qthreadpool.h>
+#include <private/qthreadpool_p.h>
+#endif
+
#if defined(__ARM_NEON__)
QT_BEGIN_NAMESPACE
using namespace QImageScale;
+template<typename T>
+static inline void multithread_pixels_function(QImageScaleInfo *isi, int dh, const T &scaleSection)
+{
+#if QT_CONFIG(thread) && !defined(Q_OS_WASM)
+ int segments = (qsizetype(isi->sh) * isi->sw) / (1<<16);
+ segments = std::min(segments, dh);
+ QThreadPool *threadPool = QThreadPoolPrivate::qtGuiInstance();
+ if (segments > 1 && threadPool && !threadPool->contains(QThread::currentThread())) {
+ QSemaphore semaphore;
+ int y = 0;
+ for (int i = 0; i < segments; ++i) {
+ int yn = (dh - y) / (segments - i);
+ threadPool->start([&, y, yn]() {
+ scaleSection(y, y + yn);
+ semaphore.release(1);
+ });
+ y += yn;
+ }
+ semaphore.acquire(segments);
+ return;
+ }
+#endif
+ scaleSection(0, dh);
+}
+
inline static uint32x4_t qt_qimageScaleAARGBA_helper(const unsigned int *pix, int xyap, int Cxy, int step)
{
uint32x2_t vpix32 = vmov_n_u32(*pix);
@@ -76,33 +71,36 @@ void qt_qimageScaleAARGBA_up_x_down_y_neon(QImageScaleInfo *isi, unsigned int *d
int *yapoints = isi->yapoints;
/* go through every scanline in the output buffer */
- for (int y = 0; y < dh; y++) {
- int Cy = yapoints[y] >> 16;
- int yap = yapoints[y] & 0xffff;
-
- unsigned int *dptr = dest + (y * dow);
- for (int x = 0; x < dw; x++) {
- const unsigned int *sptr = ypoints[y] + xpoints[x];
- uint32x4_t vx = qt_qimageScaleAARGBA_helper(sptr, yap, Cy, sow);
-
- int xap = xapoints[x];
- if (xap > 0) {
- uint32x4_t vr = qt_qimageScaleAARGBA_helper(sptr + 1, yap, Cy, sow);
-
- vx = vmulq_n_u32(vx, 256 - xap);
- vr = vmulq_n_u32(vr, xap);
- vx = vaddq_u32(vx, vr);
- vx = vshrq_n_u32(vx, 8);
+ auto scaleSection = [&] (int yStart, int yEnd) {
+ for (int y = yStart; y < yEnd; ++y) {
+ int Cy = yapoints[y] >> 16;
+ int yap = yapoints[y] & 0xffff;
+
+ unsigned int *dptr = dest + (y * dow);
+ for (int x = 0; x < dw; x++) {
+ const unsigned int *sptr = ypoints[y] + xpoints[x];
+ uint32x4_t vx = qt_qimageScaleAARGBA_helper(sptr, yap, Cy, sow);
+
+ int xap = xapoints[x];
+ if (xap > 0) {
+ uint32x4_t vr = qt_qimageScaleAARGBA_helper(sptr + 1, yap, Cy, sow);
+
+ vx = vmulq_n_u32(vx, 256 - xap);
+ vr = vmulq_n_u32(vr, xap);
+ vx = vaddq_u32(vx, vr);
+ vx = vshrq_n_u32(vx, 8);
+ }
+ vx = vshrq_n_u32(vx, 14);
+ const uint16x4_t vx16 = vmovn_u32(vx);
+ const uint8x8_t vx8 = vmovn_u16(vcombine_u16(vx16, vx16));
+ *dptr = vget_lane_u32(vreinterpret_u32_u8(vx8), 0);
+ if (RGB)
+ *dptr |= 0xff000000;
+ dptr++;
}
- vx = vshrq_n_u32(vx, 14);
- const uint16x4_t vx16 = vmovn_u32(vx);
- const uint8x8_t vx8 = vmovn_u16(vcombine_u16(vx16, vx16));
- *dptr = vget_lane_u32(vreinterpret_u32_u8(vx8), 0);
- if (RGB)
- *dptr |= 0xff000000;
- dptr++;
}
- }
+ };
+ multithread_pixels_function(isi, dh, scaleSection);
}
template<bool RGB>
@@ -115,33 +113,36 @@ void qt_qimageScaleAARGBA_down_x_up_y_neon(QImageScaleInfo *isi, unsigned int *d
int *yapoints = isi->yapoints;
/* go through every scanline in the output buffer */
- for (int y = 0; y < dh; y++) {
- unsigned int *dptr = dest + (y * dow);
- for (int x = 0; x < dw; x++) {
- int Cx = xapoints[x] >> 16;
- int xap = xapoints[x] & 0xffff;
-
- const unsigned int *sptr = ypoints[y] + xpoints[x];
- uint32x4_t vx = qt_qimageScaleAARGBA_helper(sptr, xap, Cx, 1);
-
- int yap = yapoints[y];
- if (yap > 0) {
- uint32x4_t vr = qt_qimageScaleAARGBA_helper(sptr + sow, xap, Cx, 1);
-
- vx = vmulq_n_u32(vx, 256 - yap);
- vr = vmulq_n_u32(vr, yap);
- vx = vaddq_u32(vx, vr);
- vx = vshrq_n_u32(vx, 8);
+ auto scaleSection = [&] (int yStart, int yEnd) {
+ for (int y = yStart; y < yEnd; ++y) {
+ unsigned int *dptr = dest + (y * dow);
+ for (int x = 0; x < dw; x++) {
+ int Cx = xapoints[x] >> 16;
+ int xap = xapoints[x] & 0xffff;
+
+ const unsigned int *sptr = ypoints[y] + xpoints[x];
+ uint32x4_t vx = qt_qimageScaleAARGBA_helper(sptr, xap, Cx, 1);
+
+ int yap = yapoints[y];
+ if (yap > 0) {
+ uint32x4_t vr = qt_qimageScaleAARGBA_helper(sptr + sow, xap, Cx, 1);
+
+ vx = vmulq_n_u32(vx, 256 - yap);
+ vr = vmulq_n_u32(vr, yap);
+ vx = vaddq_u32(vx, vr);
+ vx = vshrq_n_u32(vx, 8);
+ }
+ vx = vshrq_n_u32(vx, 14);
+ const uint16x4_t vx16 = vmovn_u32(vx);
+ const uint8x8_t vx8 = vmovn_u16(vcombine_u16(vx16, vx16));
+ *dptr = vget_lane_u32(vreinterpret_u32_u8(vx8), 0);
+ if (RGB)
+ *dptr |= 0xff000000;
+ dptr++;
}
- vx = vshrq_n_u32(vx, 14);
- const uint16x4_t vx16 = vmovn_u32(vx);
- const uint8x8_t vx8 = vmovn_u16(vcombine_u16(vx16, vx16));
- *dptr = vget_lane_u32(vreinterpret_u32_u8(vx8), 0);
- if (RGB)
- *dptr |= 0xff000000;
- dptr++;
}
- }
+ };
+ multithread_pixels_function(isi, dh, scaleSection);
}
template<bool RGB>
@@ -153,43 +154,46 @@ void qt_qimageScaleAARGBA_down_xy_neon(QImageScaleInfo *isi, unsigned int *dest,
int *xapoints = isi->xapoints;
int *yapoints = isi->yapoints;
- for (int y = 0; y < dh; y++) {
- int Cy = yapoints[y] >> 16;
- int yap = yapoints[y] & 0xffff;
-
- unsigned int *dptr = dest + (y * dow);
- for (int x = 0; x < dw; x++) {
- const int Cx = xapoints[x] >> 16;
- const int xap = xapoints[x] & 0xffff;
+ auto scaleSection = [&] (int yStart, int yEnd) {
+ for (int y = yStart; y < yEnd; ++y) {
+ int Cy = yapoints[y] >> 16;
+ int yap = yapoints[y] & 0xffff;
- const unsigned int *sptr = ypoints[y] + xpoints[x];
- uint32x4_t vx = qt_qimageScaleAARGBA_helper(sptr, xap, Cx, 1);
- vx = vshrq_n_u32(vx, 4);
- uint32x4_t vr = vmulq_n_u32(vx, yap);
+ unsigned int *dptr = dest + (y * dow);
+ for (int x = 0; x < dw; x++) {
+ const int Cx = xapoints[x] >> 16;
+ const int xap = xapoints[x] & 0xffff;
- int j;
- for (j = (1 << 14) - yap; j > Cy; j -= Cy) {
+ const unsigned int *sptr = ypoints[y] + xpoints[x];
+ uint32x4_t vx = qt_qimageScaleAARGBA_helper(sptr, xap, Cx, 1);
+ vx = vshrq_n_u32(vx, 4);
+ uint32x4_t vr = vmulq_n_u32(vx, yap);
+
+ int j;
+ for (j = (1 << 14) - yap; j > Cy; j -= Cy) {
+ sptr += sow;
+ vx = qt_qimageScaleAARGBA_helper(sptr, xap, Cx, 1);
+ vx = vshrq_n_u32(vx, 4);
+ vx = vmulq_n_u32(vx, Cy);
+ vr = vaddq_u32(vr, vx);
+ }
sptr += sow;
vx = qt_qimageScaleAARGBA_helper(sptr, xap, Cx, 1);
vx = vshrq_n_u32(vx, 4);
- vx = vmulq_n_u32(vx, Cy);
+ vx = vmulq_n_u32(vx, j);
vr = vaddq_u32(vr, vx);
+
+ vx = vshrq_n_u32(vr, 24);
+ const uint16x4_t vx16 = vmovn_u32(vx);
+ const uint8x8_t vx8 = vmovn_u16(vcombine_u16(vx16, vx16));
+ *dptr = vget_lane_u32(vreinterpret_u32_u8(vx8), 0);
+ if (RGB)
+ *dptr |= 0xff000000;
+ dptr++;
}
- sptr += sow;
- vx = qt_qimageScaleAARGBA_helper(sptr, xap, Cx, 1);
- vx = vshrq_n_u32(vx, 4);
- vx = vmulq_n_u32(vx, j);
- vr = vaddq_u32(vr, vx);
-
- vx = vshrq_n_u32(vr, 24);
- const uint16x4_t vx16 = vmovn_u32(vx);
- const uint8x8_t vx8 = vmovn_u16(vcombine_u16(vx16, vx16));
- *dptr = vget_lane_u32(vreinterpret_u32_u8(vx8), 0);
- if (RGB)
- *dptr |= 0xff000000;
- dptr++;
}
- }
+ };
+ multithread_pixels_function(isi, dh, scaleSection);
}
template void qt_qimageScaleAARGBA_up_x_down_y_neon<false>(QImageScaleInfo *isi, unsigned int *dest,
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-10 10:48:51 +0000