diff options
Diffstat (limited to 'src/gui/image/qimage_p.h')
| -rw-r--r-- | src/gui/image/qimage_p.h | 270 |
1 files changed, 224 insertions, 46 deletions
diff --git a/src/gui/image/qimage_p.h b/src/gui/image/qimage_p.h index 64f5be9e76..0d42f94253 100644 --- a/src/gui/image/qimage_p.h +++ b/src/gui/image/qimage_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) 2021 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 QIMAGE_P_H #define QIMAGE_P_H @@ -57,6 +21,8 @@ #include <QtCore/private/qnumeric_p.h> #include <QtCore/qlist.h> #include <QtCore/qmap.h> +#include <QtCore/qttypetraits.h> + QT_BEGIN_NAMESPACE @@ -93,7 +59,6 @@ struct Q_GUI_EXPORT QImageData { // internal image data uint ro_data : 1; uint has_alpha_clut : 1; uint is_cached : 1; - uint is_locked : 1; QImageCleanupFunction cleanupFunction; void* cleanupInfo; @@ -129,18 +94,18 @@ QImageData::calculateImageParameters(qsizetype width, qsizetype height, qsizetyp // calculate the size, taking care of overflows qsizetype bytes_per_line; - if (mul_overflow(width, depth, &bytes_per_line)) + if (qMulOverflow(width, depth, &bytes_per_line)) return invalid; - if (add_overflow(bytes_per_line, qsizetype(31), &bytes_per_line)) + if (qAddOverflow(bytes_per_line, qsizetype(31), &bytes_per_line)) return invalid; // bytes per scanline (must be multiple of 4) bytes_per_line = (bytes_per_line >> 5) << 2; // can't overflow qsizetype total_size; - if (mul_overflow(height, bytes_per_line, &total_size)) + if (qMulOverflow(height, bytes_per_line, &total_size)) return invalid; qsizetype dummy; - if (mul_overflow(height, qsizetype(sizeof(uchar *)), &dummy)) + if (qMulOverflow(height, qsizetype(sizeof(uchar *)), &dummy)) return invalid; // why is this here? #if 1 || QT_VERSION < QT_VERSION_CHECK(6,0,0) // ### can only fix this if QImage dimensions are not int anymore // Disallow images where width * depth calculations might overflow @@ -161,6 +126,10 @@ void convert_generic(QImageData *dest, const QImageData *src, Qt::ImageConversio void convert_generic_over_rgb64(QImageData *dest, const QImageData *src, Qt::ImageConversionFlags); bool convert_generic_inplace(QImageData *data, QImage::Format dst_format, Qt::ImageConversionFlags); bool convert_generic_inplace_over_rgb64(QImageData *data, QImage::Format dst_format, Qt::ImageConversionFlags); +#if QT_CONFIG(raster_fp) +void convert_generic_over_rgba32f(QImageData *dest, const QImageData *src, Qt::ImageConversionFlags); +bool convert_generic_inplace_over_rgba32f(QImageData *data, QImage::Format dst_format, Qt::ImageConversionFlags); +#endif void dither_to_Mono(QImageData *dst, const QImageData *src, Qt::ImageConversionFlags flags, bool fromalpha); @@ -216,8 +185,19 @@ inline int qt_depthForFormat(QImage::Format format) case QImage::Format_RGBX64: case QImage::Format_RGBA64: case QImage::Format_RGBA64_Premultiplied: + case QImage::Format_RGBX16FPx4: + case QImage::Format_RGBA16FPx4: + case QImage::Format_RGBA16FPx4_Premultiplied: depth = 64; break; + case QImage::Format_RGBX32FPx4: + case QImage::Format_RGBA32FPx4: + case QImage::Format_RGBA32FPx4_Premultiplied: + depth = 128; + break; + case QImage::Format_CMYK8888: + depth = 32; + break; } return depth; } @@ -247,6 +227,12 @@ inline QImage::Format qt_opaqueVersion(QImage::Format format) case QImage::Format_RGBA64: case QImage::Format_RGBA64_Premultiplied: return QImage::Format_RGBX64; + case QImage::Format_RGBA16FPx4: + case QImage::Format_RGBA16FPx4_Premultiplied: + return QImage::Format_RGBX16FPx4; + case QImage::Format_RGBA32FPx4: + case QImage::Format_RGBA32FPx4_Premultiplied: + return QImage::Format_RGBX32FPx4; case QImage::Format_ARGB32_Premultiplied: case QImage::Format_ARGB32: return QImage::Format_RGB32; @@ -261,8 +247,11 @@ inline QImage::Format qt_opaqueVersion(QImage::Format format) case QImage::Format_BGR30: case QImage::Format_RGB30: case QImage::Format_RGBX64: + case QImage::Format_RGBX16FPx4: + case QImage::Format_RGBX32FPx4: case QImage::Format_Grayscale8: case QImage::Format_Grayscale16: + case QImage::Format_CMYK8888: return format; case QImage::Format_Mono: case QImage::Format_MonoLSB: @@ -300,6 +289,12 @@ inline QImage::Format qt_alphaVersion(QImage::Format format) case QImage::Format_RGBA64: case QImage::Format_Grayscale16: return QImage::Format_RGBA64_Premultiplied; + case QImage::Format_RGBX16FPx4: + case QImage::Format_RGBA16FPx4: + return QImage::Format_RGBA16FPx4_Premultiplied; + case QImage::Format_RGBX32FPx4: + case QImage::Format_RGBA32FPx4: + return QImage::Format_RGBA32FPx4_Premultiplied; case QImage::Format_ARGB32_Premultiplied: case QImage::Format_ARGB8565_Premultiplied: case QImage::Format_ARGB8555_Premultiplied: @@ -309,6 +304,8 @@ inline QImage::Format qt_alphaVersion(QImage::Format format) case QImage::Format_A2BGR30_Premultiplied: case QImage::Format_A2RGB30_Premultiplied: case QImage::Format_RGBA64_Premultiplied: + case QImage::Format_RGBA16FPx4_Premultiplied: + case QImage::Format_RGBA32FPx4_Premultiplied: return format; case QImage::Format_Mono: case QImage::Format_MonoLSB: @@ -318,12 +315,84 @@ inline QImage::Format qt_alphaVersion(QImage::Format format) case QImage::Format_Alpha8: case QImage::Format_Grayscale8: case QImage::Format_Invalid: + case QImage::Format_CMYK8888: case QImage::NImageFormats: break; } return QImage::Format_ARGB32_Premultiplied; } +// Returns an opaque version that is compatible with format +inline QImage::Format qt_maybeDataCompatibleOpaqueVersion(QImage::Format format) +{ + switch (format) { + case QImage::Format_ARGB6666_Premultiplied: + return QImage::Format_RGB666; + case QImage::Format_ARGB4444_Premultiplied: + return QImage::Format_RGB444; + case QImage::Format_RGBA8888: + case QImage::Format_RGBA8888_Premultiplied: + return QImage::Format_RGBX8888; + case QImage::Format_A2BGR30_Premultiplied: + return QImage::Format_BGR30; + case QImage::Format_A2RGB30_Premultiplied: + return QImage::Format_RGB30; + case QImage::Format_RGBA64: + case QImage::Format_RGBA64_Premultiplied: + return QImage::Format_RGBX64; + case QImage::Format_RGBA16FPx4: + case QImage::Format_RGBA16FPx4_Premultiplied: + return QImage::Format_RGBX16FPx4; + case QImage::Format_RGBA32FPx4: + case QImage::Format_RGBA32FPx4_Premultiplied: + return QImage::Format_RGBX32FPx4; + case QImage::Format_ARGB32_Premultiplied: + case QImage::Format_ARGB32: + return QImage::Format_RGB32; + case QImage::Format_RGB16: + case QImage::Format_RGB32: + case QImage::Format_RGB444: + case QImage::Format_RGB555: + case QImage::Format_RGB666: + case QImage::Format_RGB888: + case QImage::Format_BGR888: + case QImage::Format_RGBX8888: + case QImage::Format_BGR30: + case QImage::Format_RGB30: + case QImage::Format_RGBX64: + case QImage::Format_RGBX16FPx4: + case QImage::Format_RGBX32FPx4: + case QImage::Format_Grayscale8: + case QImage::Format_Grayscale16: + case QImage::Format_CMYK8888: + return format; // Already opaque + case QImage::Format_Mono: + case QImage::Format_MonoLSB: + case QImage::Format_Indexed8: + case QImage::Format_ARGB8565_Premultiplied: + case QImage::Format_ARGB8555_Premultiplied: + case QImage::Format_Alpha8: + case QImage::Format_Invalid: + case QImage::NImageFormats: + break; + } + return format; // No compatible opaque versions +} + +constexpr QImage::Format qt_toUnpremultipliedFormat(QImage::Format format) +{ + // Assumes input is already a premultiplied format with an unpremultiplied counterpart + // This abuses the fact unpremultiplied formats are always before their premultiplied counterparts. + return static_cast<QImage::Format>(qToUnderlying(format) - 1); +} + +constexpr QImage::Format qt_toPremultipliedFormat(QImage::Format format) +{ + // Assumes input is already an unpremultiplied format + // This abuses the fact unpremultiplied formats are always before their premultiplied counterparts. + return static_cast<QImage::Format>(qToUnderlying(format) + 1); +} + inline bool qt_highColorPrecision(QImage::Format format, bool opaque = false) { // Formats with higher color precision than ARGB32_Premultiplied. @@ -339,6 +408,12 @@ inline bool qt_highColorPrecision(QImage::Format format, bool opaque = false) case QImage::Format_RGBA64: case QImage::Format_RGBA64_Premultiplied: case QImage::Format_Grayscale16: + case QImage::Format_RGBX16FPx4: + case QImage::Format_RGBA16FPx4: + case QImage::Format_RGBA16FPx4_Premultiplied: + case QImage::Format_RGBX32FPx4: + case QImage::Format_RGBA32FPx4: + case QImage::Format_RGBA32FPx4_Premultiplied: return true; default: break; @@ -346,11 +421,114 @@ inline bool qt_highColorPrecision(QImage::Format format, bool opaque = false) return false; } +inline bool qt_fpColorPrecision(QImage::Format format) +{ + switch (format) { + case QImage::Format_RGBX16FPx4: + case QImage::Format_RGBA16FPx4: + case QImage::Format_RGBA16FPx4_Premultiplied: + case QImage::Format_RGBX32FPx4: + case QImage::Format_RGBA32FPx4: + case QImage::Format_RGBA32FPx4_Premultiplied: + return true; + default: + break; + } + return false; +} + +inline QColorSpace::ColorModel qt_csColorData(QPixelFormat::ColorModel format) +{ + switch (format) { + case QPixelFormat::ColorModel::RGB: + case QPixelFormat::ColorModel::BGR: + case QPixelFormat::ColorModel::Indexed: + return QColorSpace::ColorModel::Rgb; + case QPixelFormat::ColorModel::Alpha: + return QColorSpace::ColorModel::Undefined; // No valid colors + case QPixelFormat::ColorModel::Grayscale: + return QColorSpace::ColorModel::Gray; + case QPixelFormat::ColorModel::CMYK: + return QColorSpace::ColorModel::Cmyk; + default: + break; + } + return QColorSpace::ColorModel::Undefined; +} + +inline bool qt_compatibleColorModel(QPixelFormat::ColorModel data, QColorSpace::ColorModel cs) +{ + QColorSpace::ColorModel dataCs = qt_csColorData(data); + + if (data == QPixelFormat::ColorModel::Alpha) + return true; // Alpha data has no colors and can be handled by any color space + + if (cs == QColorSpace::ColorModel::Undefined || dataCs == QColorSpace::ColorModel::Undefined) + return false; + + if (dataCs == cs) + return true; // Matching color models + + if (dataCs == QColorSpace::ColorModel::Gray) + return true; // Can apply any CS with white point to Gray data -inline QImage::Format qt_maybeAlphaVersionWithSameDepth(QImage::Format format) + return false; +} + +inline QImage::Format qt_maybeDataCompatibleAlphaVersion(QImage::Format format) { - const QImage::Format toFormat = qt_alphaVersion(format); - return qt_depthForFormat(format) == qt_depthForFormat(toFormat) ? toFormat : format; + switch (format) { + case QImage::Format_RGB32: + return QImage::Format_ARGB32_Premultiplied; + case QImage::Format_RGB666: + return QImage::Format_ARGB6666_Premultiplied; + case QImage::Format_RGB444: + return QImage::Format_ARGB4444_Premultiplied; + case QImage::Format_RGBX8888: + return QImage::Format_RGBA8888_Premultiplied; + case QImage::Format_BGR30: + return QImage::Format_A2BGR30_Premultiplied; + case QImage::Format_RGB30: + return QImage::Format_A2RGB30_Premultiplied; + case QImage::Format_RGBX64: + return QImage::Format_RGBA64_Premultiplied; + case QImage::Format_RGBX16FPx4: + return QImage::Format_RGBA16FPx4_Premultiplied; + case QImage::Format_RGBX32FPx4: + return QImage::Format_RGBA32FPx4_Premultiplied; + case QImage::Format_ARGB32: + case QImage::Format_ARGB32_Premultiplied: + case QImage::Format_ARGB8565_Premultiplied: + case QImage::Format_ARGB8555_Premultiplied: + case QImage::Format_ARGB6666_Premultiplied: + case QImage::Format_ARGB4444_Premultiplied: + case QImage::Format_RGBA8888: + case QImage::Format_RGBA8888_Premultiplied: + case QImage::Format_A2BGR30_Premultiplied: + case QImage::Format_A2RGB30_Premultiplied: + case QImage::Format_Alpha8: + case QImage::Format_RGBA64: + case QImage::Format_RGBA64_Premultiplied: + case QImage::Format_RGBA16FPx4: + case QImage::Format_RGBA16FPx4_Premultiplied: + case QImage::Format_RGBA32FPx4: + case QImage::Format_RGBA32FPx4_Premultiplied: + return format; // Already alpha versions + case QImage::Format_Mono: + case QImage::Format_MonoLSB: + case QImage::Format_Indexed8: + case QImage::Format_RGB16: + case QImage::Format_RGB555: + case QImage::Format_RGB888: + case QImage::Format_BGR888: + case QImage::Format_Grayscale8: + case QImage::Format_Grayscale16: + case QImage::Format_CMYK8888: + case QImage::Format_Invalid: + case QImage::NImageFormats: + break; + } + return format; // No data-compatible alpha version } inline QImage::Format qt_opaqueVersionForPainting(QImage::Format format) |