diff options
author | Qt Forward Merge Bot <qt_forward_merge_bot@qt-project.org> | 2020-03-11 01:00:56 +0100 |
---|---|---|
committer | Sona Kurazyan <sona.kurazyan@qt.io> | 2020-03-11 15:34:21 +0100 |
commit | 865afac25036d58b18794384e37d42931b2164c5 (patch) | |
tree | e18d31138f1a8b9200764fd3648e58b9dd6b124f /src/gui/image/qimage_conversions.cpp | |
parent | 01bacdf7abb071198d843acdfb22ce1701766be8 (diff) | |
parent | 52de905d0ec6159d3a1e7ad63fed018b5c6973d2 (diff) |
Merge remote-tracking branch 'origin/5.15' into dev
Change-Id: Ibee5acec72a1a1769d4bc5f23f56c7dc8d4cf3cb
Diffstat (limited to 'src/gui/image/qimage_conversions.cpp')
-rw-r--r-- | src/gui/image/qimage_conversions.cpp | 209 |
1 files changed, 140 insertions, 69 deletions
diff --git a/src/gui/image/qimage_conversions.cpp b/src/gui/image/qimage_conversions.cpp index 27088698ec..4f570d8684 100644 --- a/src/gui/image/qimage_conversions.cpp +++ b/src/gui/image/qimage_conversions.cpp @@ -43,7 +43,12 @@ #include <private/qendian_p.h> #include <private/qsimd_p.h> #include <private/qimage_p.h> + #include <qendian.h> +#if QT_CONFIG(thread) +#include <qsemaphore.h> +#include <qthreadpool.h> +#endif QT_BEGIN_NAMESPACE @@ -159,12 +164,8 @@ void convert_generic(QImageData *dest, const QImageData *src, Qt::ImageConversio // Cannot be used with indexed formats. Q_ASSERT(dest->format > QImage::Format_Indexed8); Q_ASSERT(src->format > QImage::Format_Indexed8); - uint buf[BufferSize]; - uint *buffer = buf; const QPixelLayout *srcLayout = &qPixelLayouts[src->format]; const QPixelLayout *destLayout = &qPixelLayouts[dest->format]; - const uchar *srcData = src->data; - uchar *destData = dest->data; FetchAndConvertPixelsFunc fetch = srcLayout->fetchToARGB32PM; ConvertAndStorePixelsFunc store = destLayout->storeFromARGB32PM; @@ -197,59 +198,110 @@ void convert_generic(QImageData *dest, const QImageData *src, Qt::ImageConversio else store = destLayout->storeFromRGB32; } - QDitherInfo dither; - QDitherInfo *ditherPtr = nullptr; - if ((flags & Qt::PreferDither) && (flags & Qt::Dither_Mask) != Qt::ThresholdDither) - ditherPtr = &dither; - - for (int y = 0; y < src->height; ++y) { - dither.y = y; - int x = 0; - while (x < src->width) { - dither.x = x; - int l = src->width - x; - if (destLayout->bpp == QPixelLayout::BPP32) - buffer = reinterpret_cast<uint *>(destData) + x; - else - l = qMin(l, BufferSize); - const uint *ptr = fetch(buffer, srcData, x, l, nullptr, ditherPtr); - store(destData, ptr, x, l, nullptr, ditherPtr); - x += l; + + auto convertSegment = [=](int yStart, int yEnd) { + uint buf[BufferSize]; + uint *buffer = buf; + const uchar *srcData = src->data + src->bytes_per_line * yStart; + uchar *destData = dest->data + dest->bytes_per_line * yStart; + QDitherInfo dither; + QDitherInfo *ditherPtr = nullptr; + if ((flags & Qt::PreferDither) && (flags & Qt::Dither_Mask) != Qt::ThresholdDither) + ditherPtr = &dither; + for (int y = yStart; y < yEnd; ++y) { + dither.y = y; + int x = 0; + while (x < src->width) { + dither.x = x; + int l = src->width - x; + if (destLayout->bpp == QPixelLayout::BPP32) + buffer = reinterpret_cast<uint *>(destData) + x; + else + l = qMin(l, BufferSize); + const uint *ptr = fetch(buffer, srcData, x, l, 0, ditherPtr); + store(destData, ptr, x, l, 0, ditherPtr); + x += l; + } + srcData += src->bytes_per_line; + destData += dest->bytes_per_line; } - srcData += src->bytes_per_line; - destData += dest->bytes_per_line; - } + }; + +#if QT_CONFIG(thread) + int segments = src->nbytes / (1<<16); + segments = std::min(segments, src->height); + + if (segments <= 1) + return convertSegment(0, src->height); + + QSemaphore semaphore; + int y = 0; + for (int i = 0; i < segments; ++i) { + int yn = (src->height - y) / (segments - i); + QThreadPool::globalInstance()->start([&, y, yn]() { + convertSegment(y, y + yn); + semaphore.release(1); + }); + y += yn; + } + semaphore.acquire(segments); +#else + convertSegment(0, src->height); +#endif } void convert_generic_to_rgb64(QImageData *dest, const QImageData *src, Qt::ImageConversionFlags) { Q_ASSERT(dest->format > QImage::Format_Indexed8); Q_ASSERT(src->format > QImage::Format_Indexed8); - QRgba64 buf[BufferSize]; - QRgba64 *buffer = buf; const QPixelLayout *srcLayout = &qPixelLayouts[src->format]; const QPixelLayout *destLayout = &qPixelLayouts[dest->format]; - const uchar *srcData = src->data; - uchar *destData = dest->data; const FetchAndConvertPixelsFunc64 fetch = srcLayout->fetchToRGBA64PM; const ConvertAndStorePixelsFunc64 store = qStoreFromRGBA64PM[dest->format]; - for (int y = 0; y < src->height; ++y) { - int x = 0; - while (x < src->width) { - int l = src->width - x; - if (destLayout->bpp == QPixelLayout::BPP64) - buffer = reinterpret_cast<QRgba64 *>(destData) + x; - else - l = qMin(l, BufferSize); - const QRgba64 *ptr = fetch(buffer, srcData, x, l, nullptr, nullptr); - store(destData, ptr, x, l, nullptr, nullptr); - x += l; + auto convertSegment = [=](int yStart, int yEnd) { + QRgba64 buf[BufferSize]; + QRgba64 *buffer = buf; + const uchar *srcData = src->data + yStart * src->bytes_per_line; + uchar *destData = dest->data + yStart * dest->bytes_per_line; + for (int y = yStart; y < yEnd; ++y) { + int x = 0; + while (x < src->width) { + int l = src->width - x; + if (destLayout->bpp == QPixelLayout::BPP64) + buffer = reinterpret_cast<QRgba64 *>(destData) + x; + else + l = qMin(l, BufferSize); + const QRgba64 *ptr = fetch(buffer, srcData, x, l, nullptr, nullptr); + store(destData, ptr, x, l, nullptr, nullptr); + x += l; + } + srcData += src->bytes_per_line; + destData += dest->bytes_per_line; } - srcData += src->bytes_per_line; - destData += dest->bytes_per_line; - } + }; +#if QT_CONFIG(thread) + int segments = src->nbytes / (1<<16); + segments = std::min(segments, src->height); + + if (segments <= 1) + return convertSegment(0, src->height); + + QSemaphore semaphore; + int y = 0; + for (int i = 0; i < segments; ++i) { + int yn = (src->height - y) / (segments - i); + QThreadPool::globalInstance()->start([&, y, yn]() { + convertSegment(y, y + yn); + semaphore.release(1); + }); + y += yn; + } + semaphore.acquire(segments); +#else + convertSegment(0, src->height); +#endif } bool convert_generic_inplace(QImageData *data, QImage::Format dst_format, Qt::ImageConversionFlags flags) @@ -270,11 +322,6 @@ bool convert_generic_inplace(QImageData *data, QImage::Format dst_format, Qt::Im && qt_highColorPrecision(dst_format, !srcLayout->hasAlphaChannel)) return false; - uint buf[BufferSize]; - uint *buffer = buf; - uchar *srcData = data->data; - uchar *destData = data->data; - QImageData::ImageSizeParameters params = { data->bytes_per_line, data->nbytes }; if (data->depth != destDepth) { params = QImageData::calculateImageParameters(data->width, data->height, destDepth); @@ -313,28 +360,52 @@ bool convert_generic_inplace(QImageData *data, QImage::Format dst_format, Qt::Im else store = destLayout->storeFromRGB32; } - QDitherInfo dither; - QDitherInfo *ditherPtr = nullptr; - if ((flags & Qt::PreferDither) && (flags & Qt::Dither_Mask) != Qt::ThresholdDither) - ditherPtr = &dither; - - for (int y = 0; y < data->height; ++y) { - dither.y = y; - int x = 0; - while (x < data->width) { - dither.x = x; - int l = data->width - x; - if (srcLayout->bpp == QPixelLayout::BPP32) - buffer = reinterpret_cast<uint *>(srcData) + x; - else - l = qMin(l, BufferSize); - const uint *ptr = fetch(buffer, srcData, x, l, nullptr, ditherPtr); - store(destData, ptr, x, l, nullptr, ditherPtr); - x += l; + + auto convertSegment = [=](int yStart, int yEnd) { + uint buf[BufferSize]; + uint *buffer = buf; + uchar *srcData = data->data + data->bytes_per_line * yStart; + uchar *destData = srcData; + QDitherInfo dither; + QDitherInfo *ditherPtr = nullptr; + if ((flags & Qt::PreferDither) && (flags & Qt::Dither_Mask) != Qt::ThresholdDither) + ditherPtr = &dither; + for (int y = yStart; y < yEnd; ++y) { + dither.y = y; + int x = 0; + while (x < data->width) { + dither.x = x; + int l = data->width - x; + if (srcLayout->bpp == QPixelLayout::BPP32) + buffer = reinterpret_cast<uint *>(srcData) + x; + else + l = qMin(l, BufferSize); + const uint *ptr = fetch(buffer, srcData, x, l, nullptr, ditherPtr); + store(destData, ptr, x, l, nullptr, ditherPtr); + x += l; + } + srcData += data->bytes_per_line; + destData += params.bytesPerLine; } - srcData += data->bytes_per_line; - destData += params.bytesPerLine; - } + }; +#if QT_CONFIG(thread) + int segments = data->nbytes / (1<<16); + segments = std::min(segments, data->height); + if (segments > 1) { + QSemaphore semaphore; + int y = 0; + for (int i = 0; i < segments; ++i) { + int yn = (data->height - y) / (segments - i); + QThreadPool::globalInstance()->start([&, y, yn]() { + convertSegment(y, y + yn); + semaphore.release(1); + }); + y += yn; + } + semaphore.acquire(segments); + } else +#endif + convertSegment(0, data->height); if (params.totalSize != data->nbytes) { Q_ASSERT(params.totalSize < data->nbytes); void *newData = realloc(data->data, params.totalSize); |