diff options
author | Eirik Aavitsland <eirik.aavitsland@qt.io> | 2019-02-18 13:09:58 +0100 |
---|---|---|
committer | Eirik Aavitsland <eirik.aavitsland@qt.io> | 2019-02-27 13:00:56 +0000 |
commit | 42b42602c40ade7b057b1e169b99405e0c17b01f (patch) | |
tree | 2fd211fe7023f298569663d2dc893541a38aaace | |
parent | 97e78b0e1f0396cdee0319bafaf8ce1d6eb74f64 (diff) |
QTextureFileReader: add support for astc format files
The standard astc encoder has its own file format.
Change-Id: I9a2f7b1fa20ba344b79637bafb50ff2bd0596747
Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>
-rw-r--r-- | src/gui/util/qastchandler.cpp | 168 | ||||
-rw-r--r-- | src/gui/util/qastchandler_p.h | 73 | ||||
-rw-r--r-- | src/gui/util/qtexturefilereader.cpp | 5 | ||||
-rw-r--r-- | src/gui/util/util.pri | 6 | ||||
-rw-r--r-- | tests/auto/gui/util/qtexturefilereader/qtexturefilereader.qrc | 2 | ||||
-rw-r--r-- | tests/auto/gui/util/qtexturefilereader/texturefiles/newlogo.astc | bin | 0 -> 2512 bytes | |||
-rw-r--r-- | tests/auto/gui/util/qtexturefilereader/texturefiles/newlogo_srgb.astc | bin | 0 -> 2512 bytes | |||
-rw-r--r-- | tests/auto/gui/util/qtexturefilereader/tst_qtexturefilereader.cpp | 70 |
8 files changed, 297 insertions, 27 deletions
diff --git a/src/gui/util/qastchandler.cpp b/src/gui/util/qastchandler.cpp new file mode 100644 index 0000000000..6d163c6701 --- /dev/null +++ b/src/gui/util/qastchandler.cpp @@ -0,0 +1,168 @@ +/**************************************************************************** +** +** Copyright (C) 2019 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qastchandler_p.h" +#include "qtexturefiledata_p.h" + +#include <private/qnumeric_p.h> + +#include <QFile> +#include <QDebug> +#include <QSize> + +QT_BEGIN_NAMESPACE + +struct AstcHeader +{ + quint8 magic[4]; + quint8 blockDimX; + quint8 blockDimY; + quint8 blockDimZ; + quint8 xSize[3]; + quint8 ySize[3]; + quint8 zSize[3]; +}; + +bool QAstcHandler::canRead(const QByteArray &suffix, const QByteArray &block) +{ + Q_UNUSED(suffix) + + return block.startsWith("\x13\xAB\xA1\x5C"); +} + +quint32 QAstcHandler::astcGLFormat(quint8 xBlockDim, quint8 yBlockDim) const +{ + static const quint32 glFormatRGBABase = 0x93B0; // GL_COMPRESSED_RGBA_ASTC_4x4_KHR + static const quint32 glFormatSRGBBase = 0x93D0; // GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR + + static QSize dims[14] = { + { 4, 4 }, // GL_COMPRESSED_xxx_ASTC_4x4_KHR + { 5, 4 }, // GL_COMPRESSED_xxx_ASTC_5x4_KHR + { 5, 5 }, // GL_COMPRESSED_xxx_ASTC_5x5_KHR + { 6, 5 }, // GL_COMPRESSED_xxx_ASTC_6x5_KHR + { 6, 6 }, // GL_COMPRESSED_xxx_ASTC_6x6_KHR + { 8, 5 }, // GL_COMPRESSED_xxx_ASTC_8x5_KHR + { 8, 6 }, // GL_COMPRESSED_xxx_ASTC_8x6_KHR + { 8, 8 }, // GL_COMPRESSED_xxx_ASTC_8x8_KHR + { 10, 5 }, // GL_COMPRESSED_xxx_ASTC_10x5_KHR + { 10, 6 }, // GL_COMPRESSED_xxx_ASTC_10x6_KHR + { 10, 8 }, // GL_COMPRESSED_xxx_ASTC_10x8_KHR + { 10, 10 }, // GL_COMPRESSED_xxx_ASTC_10x10_KHR + { 12, 10 }, // GL_COMPRESSED_xxx_ASTC_12x10_KHR + { 12, 12 } // GL_COMPRESSED_xxx_ASTC_12x12_KHR + }; + + const QSize dim(xBlockDim, yBlockDim); + int index = -1; + for (int i = 0; i < 14; i++) { + if (dim == dims[i]) { + index = i; + break; + } + } + if (index < 0) + return 0; + + bool useSrgb = qEnvironmentVariableIsSet("QT_ASTCHANDLER_USE_SRGB") + || logName().toLower().contains("srgb"); + + return useSrgb ? (glFormatSRGBBase + index) : (glFormatRGBABase + index); +} + +QTextureFileData QAstcHandler::read() +{ + QTextureFileData nullData; + QTextureFileData res; + + if (!device()) + return nullData; + + QByteArray fileData = device()->readAll(); + if (fileData.size() < int(sizeof(AstcHeader)) || !canRead(QByteArray(), fileData)) { + qCDebug(lcQtGuiTextureIO, "Not an ASTC file: %s", logName().constData()); + return nullData; + } + res.setData(fileData); + + const AstcHeader *header = reinterpret_cast<const AstcHeader *>(fileData.constData()); + + int xSz = int(header->xSize[0]) | int(header->xSize[1]) << 8 | int(header->xSize[2]) << 16; + int ySz = int(header->ySize[0]) | int(header->ySize[1]) << 8 | int(header->ySize[2]) << 16; + int zSz = int(header->zSize[0]) | int(header->zSize[1]) << 8 | int(header->zSize[2]) << 16; + + quint32 glFmt = astcGLFormat(header->blockDimX, header->blockDimY); + + if (!xSz || !ySz || !zSz || !glFmt || header->blockDimZ != 1) { + qCDebug(lcQtGuiTextureIO, "Invalid ASTC header data in file %s", logName().constData()); + return nullData; + } + + res.setSize(QSize(xSz, ySz)); + res.setGLFormat(0); // 0 for compressed textures + res.setGLInternalFormat(glFmt); + //? BaseInternalFormat + + int xBlocks = (xSz + header->blockDimX - 1) / header->blockDimX; + int yBlocks = (ySz + header->blockDimY - 1) / header->blockDimY; + int zBlocks = (zSz + header->blockDimZ - 1) / header->blockDimZ; + + int byteCount = 0; + bool oob = mul_overflow(xBlocks, yBlocks, &byteCount) + || mul_overflow(byteCount, zBlocks, &byteCount) + || mul_overflow(byteCount, 16, &byteCount); + + + res.setDataOffset(sizeof(AstcHeader)); + res.setNumLevels(1); + res.setDataLength(byteCount); + + if (oob || !res.isValid()) { + qCDebug(lcQtGuiTextureIO, "Invalid ASTC file %s", logName().constData()); + return nullData; + } + + res.setLogName(logName()); + +#if 0 + qDebug() << "ASTC file handler read" << res << res.dataOffset() << res.dataLength(); +#endif + return res; +} + +QT_END_NAMESPACE diff --git a/src/gui/util/qastchandler_p.h b/src/gui/util/qastchandler_p.h new file mode 100644 index 0000000000..398f1833b6 --- /dev/null +++ b/src/gui/util/qastchandler_p.h @@ -0,0 +1,73 @@ +/**************************************************************************** +** +** Copyright (C) 2019 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QASTCHANDLER_H +#define QASTCHANDLER_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include "qtexturefilehandler_p.h" + +QT_BEGIN_NAMESPACE + +class QAstcHandler : public QTextureFileHandler +{ +public: + using QTextureFileHandler::QTextureFileHandler; + + static bool canRead(const QByteArray &suffix, const QByteArray &block); + + QTextureFileData read() override; + +private: + quint32 astcGLFormat(quint8 xBlockDim, quint8 yBlockDim) const; +}; + +QT_END_NAMESPACE + +#endif // QASTCHANDLER_H diff --git a/src/gui/util/qtexturefilereader.cpp b/src/gui/util/qtexturefilereader.cpp index 5d4bd600e0..fefb957323 100644 --- a/src/gui/util/qtexturefilereader.cpp +++ b/src/gui/util/qtexturefilereader.cpp @@ -41,6 +41,7 @@ #include "qpkmhandler_p.h" #include "qktxhandler_p.h" +#include "qastchandler_p.h" #include <QFileInfo> @@ -80,6 +81,8 @@ bool QTextureFileReader::canRead() m_handler = new QPkmHandler(m_device, logName); } else if (QKtxHandler::canRead(suffix, headerBlock)) { m_handler = new QKtxHandler(m_device, logName); + } else if (QAstcHandler::canRead(suffix, headerBlock)) { + m_handler = new QAstcHandler(m_device, logName); } // else if OtherHandler::canRead() ...etc. } @@ -89,7 +92,7 @@ bool QTextureFileReader::canRead() QList<QByteArray> QTextureFileReader::supportedFileFormats() { // Hardcoded for now - return {QByteArrayLiteral("pkm"), QByteArrayLiteral("ktx")}; + return {QByteArrayLiteral("pkm"), QByteArrayLiteral("ktx"), QByteArrayLiteral("astc")}; } bool QTextureFileReader::init() diff --git a/src/gui/util/util.pri b/src/gui/util/util.pri index 6324642505..e5e711b1a0 100644 --- a/src/gui/util/util.pri +++ b/src/gui/util/util.pri @@ -19,7 +19,8 @@ HEADERS += \ util/qtexturefilereader_p.h \ util/qtexturefilehandler_p.h \ util/qpkmhandler_p.h \ - util/qktxhandler_p.h + util/qktxhandler_p.h \ + util/qastchandler_p.h SOURCES += \ util/qdesktopservices.cpp \ @@ -38,4 +39,5 @@ SOURCES += \ util/qtexturefiledata.cpp \ util/qtexturefilereader.cpp \ util/qpkmhandler.cpp \ - util/qktxhandler.cpp + util/qktxhandler.cpp \ + util/qastchandler.cpp diff --git a/tests/auto/gui/util/qtexturefilereader/qtexturefilereader.qrc b/tests/auto/gui/util/qtexturefilereader/qtexturefilereader.qrc index ab882b5db2..8aab86e1ff 100644 --- a/tests/auto/gui/util/qtexturefilereader/qtexturefilereader.qrc +++ b/tests/auto/gui/util/qtexturefilereader/qtexturefilereader.qrc @@ -3,5 +3,7 @@ <file>texturefiles/car.ktx</file> <file>texturefiles/pattern.pkm</file> <file>texturefiles/car_mips.ktx</file> + <file>texturefiles/newlogo_srgb.astc</file> + <file>texturefiles/newlogo.astc</file> </qresource> </RCC> diff --git a/tests/auto/gui/util/qtexturefilereader/texturefiles/newlogo.astc b/tests/auto/gui/util/qtexturefilereader/texturefiles/newlogo.astc Binary files differnew file mode 100644 index 0000000000..39bf3f1734 --- /dev/null +++ b/tests/auto/gui/util/qtexturefilereader/texturefiles/newlogo.astc diff --git a/tests/auto/gui/util/qtexturefilereader/texturefiles/newlogo_srgb.astc b/tests/auto/gui/util/qtexturefilereader/texturefiles/newlogo_srgb.astc Binary files differnew file mode 100644 index 0000000000..38e876829b --- /dev/null +++ b/tests/auto/gui/util/qtexturefilereader/texturefiles/newlogo_srgb.astc diff --git a/tests/auto/gui/util/qtexturefilereader/tst_qtexturefilereader.cpp b/tests/auto/gui/util/qtexturefilereader/tst_qtexturefilereader.cpp index 9ff4f0ccf2..9b78d18954 100644 --- a/tests/auto/gui/util/qtexturefilereader/tst_qtexturefilereader.cpp +++ b/tests/auto/gui/util/qtexturefilereader/tst_qtexturefilereader.cpp @@ -49,33 +49,55 @@ void tst_qtexturefilereader::checkHandlers_data() QTest::addColumn<QList<int>>("dataOffsets"); QTest::addColumn<QList<int>>("dataLengths"); - QTest::addRow("pattern.pkm") << QStringLiteral(":/texturefiles/pattern.pkm") - << QSize(64, 64) - << quint32(0x0) - << quint32(0x8d64) - << quint32(0x0) - << 1 - << (QList<int>() << 16) - << (QList<int>() << 2048); + QTest::addRow("pattern.pkm") + << QStringLiteral(":/texturefiles/pattern.pkm") + << QSize(64, 64) + << quint32(0x0) + << quint32(0x8d64) + << quint32(0x0) + << 1 + << (QList<int>() << 16) + << (QList<int>() << 2048); - QTest::addRow("car.ktx") << QStringLiteral(":/texturefiles/car.ktx") - << QSize(146, 80) - << quint32(0x0) - << quint32(0x9278) - << quint32(0x1908) - << 1 - << (QList<int>() << 68) - << (QList<int>() << 11840); + QTest::addRow("car.ktx") + << QStringLiteral(":/texturefiles/car.ktx") + << QSize(146, 80) + << quint32(0x0) + << quint32(0x9278) + << quint32(0x1908) + << 1 + << (QList<int>() << 68) + << (QList<int>() << 11840); - QTest::addRow("car_mips.ktx") << QStringLiteral(":/texturefiles/car_mips.ktx") - << QSize(146, 80) - << quint32(0x0) - << quint32(0x9274) - << quint32(0x1907) - << 8 - << (QList<int>() << 68 << 5992 << 7516 << 7880 << 8004 << 8056 << 8068 << 8080) - << (QList<int>() << 5920 << 1520 << 360 << 120 << 48 << 8 << 8 << 8); + QTest::addRow("car_mips.ktx") + << QStringLiteral(":/texturefiles/car_mips.ktx") + << QSize(146, 80) + << quint32(0x0) + << quint32(0x9274) + << quint32(0x1907) + << 8 + << (QList<int>() << 68 << 5992 << 7516 << 7880 << 8004 << 8056 << 8068 << 8080) + << (QList<int>() << 5920 << 1520 << 360 << 120 << 48 << 8 << 8 << 8); + QTest::addRow("newlogo.astc") + << QStringLiteral(":/texturefiles/newlogo.astc") + << QSize(111, 78) + << quint32(0x0) + << quint32(0x93b9) + << quint32(0x0) + << 1 + << (QList<int>() << 16) + << (QList<int>() << 2496); + + QTest::addRow("newlogo_srgb.astc") + << QStringLiteral(":/texturefiles/newlogo_srgb.astc") + << QSize(111, 78) + << quint32(0x0) + << quint32(0x93d9) + << quint32(0x0) + << 1 + << (QList<int>() << 16) + << (QList<int>() << 2496); } void tst_qtexturefilereader::checkHandlers() |