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Diffstat (limited to 'tests/auto/opengl/qgl/tst_qgl.cpp')
| -rw-r--r-- | tests/auto/opengl/qgl/tst_qgl.cpp | 2525 |
1 files changed, 2525 insertions, 0 deletions
diff --git a/tests/auto/opengl/qgl/tst_qgl.cpp b/tests/auto/opengl/qgl/tst_qgl.cpp new file mode 100644 index 0000000000..d860caaa37 --- /dev/null +++ b/tests/auto/opengl/qgl/tst_qgl.cpp @@ -0,0 +1,2525 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the test suite of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:GPL-EXCEPT$ +** 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 General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 as published by the Free Software +** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT +** 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-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + + +#include <QtTest/QtTest> + +#include <qcoreapplication.h> +#include <qdebug.h> +#include <qgl.h> +#include <qglpixelbuffer.h> +#include <qglframebufferobject.h> +#include <qglcolormap.h> +#include <qpaintengine.h> +#include <qpainterpath.h> +#include <qopenglfunctions.h> +#include <qopenglframebufferobject.h> +#include <qopenglpaintdevice.h> + +#include <QGraphicsView> +#include <QGraphicsProxyWidget> +#include <QVBoxLayout> + +#ifdef QT_BUILD_INTERNAL +#include <qpa/qplatformpixmap.h> +#include <QtOpenGL/private/qgl_p.h> +#include <QtGui/private/qimage_p.h> +#include <QtGui/private/qimagepixmapcleanuphooks_p.h> +#include <QtGui/private/qopenglextensions_p.h> +#endif + +class tst_QGL : public QObject +{ +Q_OBJECT + +public: + tst_QGL(); + virtual ~tst_QGL(); + + static void initMain(); + +private slots: + void initTestCase(); + void getSetCheck(); +#ifdef QT_BUILD_INTERNAL + void qglContextDefaultBindTexture(); + void openGLVersionCheck(); + void shareRegister(); + void textureCleanup(); +#endif + void partialGLWidgetUpdates_data(); + void partialGLWidgetUpdates(); + void glWidgetWithAlpha(); + void glWidgetRendering(); + void glFBOSimpleRendering(); + void glFBORendering(); + void currentFboSync(); + void multipleFBOInterleavedRendering(); + void glFBOUseInGLWidget(); + void glPBufferRendering(); + void glWidgetReparent(); + void glWidgetRenderPixmap(); + void colormap(); + void fboFormat(); + void testDontCrashOnDanglingResources(); + void replaceClipping(); + void clipTest(); + void destroyFBOAfterContext(); + void threadImages(); + void nullRectCrash(); + void graphicsViewClipping(); + void extensions(); +}; + +tst_QGL::tst_QGL() +{ +} + +tst_QGL::~tst_QGL() +{ +} + +void tst_QGL::initMain() +{ + QCoreApplication::setAttribute(Qt::AA_DisableHighDpiScaling); +} + +void tst_QGL::initTestCase() +{ + QGLWidget glWidget; + if (!glWidget.isValid()) + QSKIP("QGL is not supported on the test system"); +} + +class MyGLContext : public QGLContext +{ +public: + MyGLContext(const QGLFormat& format) : QGLContext(format) {} + bool windowCreated() const { return QGLContext::windowCreated(); } + void setWindowCreated(bool on) { QGLContext::setWindowCreated(on); } + bool initialized() const { return QGLContext::initialized(); } + void setInitialized(bool on) { QGLContext::setInitialized(on); } +}; + +class MyGLWidget : public QGLWidget +{ +public: + MyGLWidget() : QGLWidget() {} + bool autoBufferSwap() const { return QGLWidget::autoBufferSwap(); } + void setAutoBufferSwap(bool on) { QGLWidget::setAutoBufferSwap(on); } +}; + +static int appDefaultDepth() +{ + static int depth = 0; + if (depth == 0) { + QPixmap pm(1, 1); + depth = pm.depth(); + } + return depth; +} + +// Using INT_MIN and INT_MAX will cause failures on systems +// where "int" is 64-bit, so use the explicit values instead. +#define TEST_INT_MIN (-2147483647 - 1) +#define TEST_INT_MAX 2147483647 + +// Testing get/set functions +void tst_QGL::getSetCheck() +{ + QGLFormat obj1; + // int QGLFormat::depthBufferSize() + // void QGLFormat::setDepthBufferSize(int) + QCOMPARE(-1, obj1.depthBufferSize()); + obj1.setDepthBufferSize(0); + QCOMPARE(0, obj1.depthBufferSize()); + QTest::ignoreMessage(QtWarningMsg, "QGLFormat::setDepthBufferSize: Cannot set negative depth buffer size -2147483648"); + obj1.setDepthBufferSize(TEST_INT_MIN); + QCOMPARE(0, obj1.depthBufferSize()); // Makes no sense with a negative buffer size + obj1.setDepthBufferSize(3); + QTest::ignoreMessage(QtWarningMsg, "QGLFormat::setDepthBufferSize: Cannot set negative depth buffer size -1"); + obj1.setDepthBufferSize(-1); + QCOMPARE(3, obj1.depthBufferSize()); + obj1.setDepthBufferSize(TEST_INT_MAX); + QCOMPARE(TEST_INT_MAX, obj1.depthBufferSize()); + + // int QGLFormat::accumBufferSize() + // void QGLFormat::setAccumBufferSize(int) + QCOMPARE(-1, obj1.accumBufferSize()); + obj1.setAccumBufferSize(0); + QCOMPARE(0, obj1.accumBufferSize()); + QTest::ignoreMessage(QtWarningMsg, "QGLFormat::setAccumBufferSize: Cannot set negative accumulate buffer size -2147483648"); + obj1.setAccumBufferSize(TEST_INT_MIN); + QCOMPARE(0, obj1.accumBufferSize()); // Makes no sense with a negative buffer size + obj1.setAccumBufferSize(3); + QTest::ignoreMessage(QtWarningMsg, "QGLFormat::setAccumBufferSize: Cannot set negative accumulate buffer size -1"); + obj1.setAccumBufferSize(-1); + QCOMPARE(3, obj1.accumBufferSize()); + obj1.setAccumBufferSize(TEST_INT_MAX); + QCOMPARE(TEST_INT_MAX, obj1.accumBufferSize()); + + // int QGLFormat::redBufferSize() + // void QGLFormat::setRedBufferSize(int) + QCOMPARE(-1, obj1.redBufferSize()); + obj1.setRedBufferSize(0); + QCOMPARE(0, obj1.redBufferSize()); + QTest::ignoreMessage(QtWarningMsg, "QGLFormat::setRedBufferSize: Cannot set negative red buffer size -2147483648"); + obj1.setRedBufferSize(TEST_INT_MIN); + QCOMPARE(0, obj1.redBufferSize()); // Makes no sense with a negative buffer size + obj1.setRedBufferSize(3); + QTest::ignoreMessage(QtWarningMsg, "QGLFormat::setRedBufferSize: Cannot set negative red buffer size -1"); + obj1.setRedBufferSize(-1); + QCOMPARE(3, obj1.redBufferSize()); + obj1.setRedBufferSize(TEST_INT_MAX); + QCOMPARE(TEST_INT_MAX, obj1.redBufferSize()); + + // int QGLFormat::greenBufferSize() + // void QGLFormat::setGreenBufferSize(int) + QCOMPARE(-1, obj1.greenBufferSize()); + obj1.setGreenBufferSize(0); + QCOMPARE(0, obj1.greenBufferSize()); + QTest::ignoreMessage(QtWarningMsg, "QGLFormat::setGreenBufferSize: Cannot set negative green buffer size -2147483648"); + obj1.setGreenBufferSize(TEST_INT_MIN); + QCOMPARE(0, obj1.greenBufferSize()); // Makes no sense with a negative buffer size + obj1.setGreenBufferSize(3); + QTest::ignoreMessage(QtWarningMsg, "QGLFormat::setGreenBufferSize: Cannot set negative green buffer size -1"); + obj1.setGreenBufferSize(-1); + QCOMPARE(3, obj1.greenBufferSize()); + obj1.setGreenBufferSize(TEST_INT_MAX); + QCOMPARE(TEST_INT_MAX, obj1.greenBufferSize()); + + // int QGLFormat::blueBufferSize() + // void QGLFormat::setBlueBufferSize(int) + QCOMPARE(-1, obj1.blueBufferSize()); + obj1.setBlueBufferSize(0); + QCOMPARE(0, obj1.blueBufferSize()); + QTest::ignoreMessage(QtWarningMsg, "QGLFormat::setBlueBufferSize: Cannot set negative blue buffer size -2147483648"); + obj1.setBlueBufferSize(TEST_INT_MIN); + QCOMPARE(0, obj1.blueBufferSize()); // Makes no sense with a negative buffer size + obj1.setBlueBufferSize(3); + QTest::ignoreMessage(QtWarningMsg, "QGLFormat::setBlueBufferSize: Cannot set negative blue buffer size -1"); + obj1.setBlueBufferSize(-1); + QCOMPARE(3, obj1.blueBufferSize()); + obj1.setBlueBufferSize(TEST_INT_MAX); + QCOMPARE(TEST_INT_MAX, obj1.blueBufferSize()); + + // int QGLFormat::alphaBufferSize() + // void QGLFormat::setAlphaBufferSize(int) + QCOMPARE(-1, obj1.alphaBufferSize()); + QCOMPARE(false, obj1.alpha()); + QVERIFY(!obj1.testOption(QGL::AlphaChannel)); + QVERIFY(obj1.testOption(QGL::NoAlphaChannel)); + obj1.setAlphaBufferSize(1); + QCOMPARE(true, obj1.alpha()); // setAlphaBufferSize() enables alpha. + QCOMPARE(1, obj1.alphaBufferSize()); + QTest::ignoreMessage(QtWarningMsg, "QGLFormat::setAlphaBufferSize: Cannot set negative alpha buffer size -2147483648"); + obj1.setAlphaBufferSize(TEST_INT_MIN); + QCOMPARE(1, obj1.alphaBufferSize()); // Makes no sense with a negative buffer size + obj1.setAlphaBufferSize(3); + QTest::ignoreMessage(QtWarningMsg, "QGLFormat::setAlphaBufferSize: Cannot set negative alpha buffer size -1"); + obj1.setAlphaBufferSize(-1); + QCOMPARE(3, obj1.alphaBufferSize()); + obj1.setAlphaBufferSize(TEST_INT_MAX); + QCOMPARE(TEST_INT_MAX, obj1.alphaBufferSize()); + + // int QGLFormat::stencilBufferSize() + // void QGLFormat::setStencilBufferSize(int) + QCOMPARE(-1, obj1.stencilBufferSize()); + obj1.setStencilBufferSize(1); + QCOMPARE(1, obj1.stencilBufferSize()); + QTest::ignoreMessage(QtWarningMsg, "QGLFormat::setStencilBufferSize: Cannot set negative stencil buffer size -2147483648"); + obj1.setStencilBufferSize(TEST_INT_MIN); + QCOMPARE(1, obj1.stencilBufferSize()); // Makes no sense with a negative buffer size + obj1.setStencilBufferSize(3); + QTest::ignoreMessage(QtWarningMsg, "QGLFormat::setStencilBufferSize: Cannot set negative stencil buffer size -1"); + obj1.setStencilBufferSize(-1); + QCOMPARE(3, obj1.stencilBufferSize()); + obj1.setStencilBufferSize(TEST_INT_MAX); + QCOMPARE(TEST_INT_MAX, obj1.stencilBufferSize()); + + // bool QGLFormat::sampleBuffers() + // void QGLFormat::setSampleBuffers(bool) + QCOMPARE(false, obj1.sampleBuffers()); + QVERIFY(!obj1.testOption(QGL::SampleBuffers)); + QVERIFY(obj1.testOption(QGL::NoSampleBuffers)); + + obj1.setSampleBuffers(false); + QCOMPARE(false, obj1.sampleBuffers()); + QVERIFY(obj1.testOption(QGL::NoSampleBuffers)); + obj1.setSampleBuffers(true); + QCOMPARE(true, obj1.sampleBuffers()); + QVERIFY(obj1.testOption(QGL::SampleBuffers)); + + // int QGLFormat::samples() + // void QGLFormat::setSamples(int) + QCOMPARE(-1, obj1.samples()); + obj1.setSamples(0); + QCOMPARE(0, obj1.samples()); + QTest::ignoreMessage(QtWarningMsg, "QGLFormat::setSamples: Cannot have negative number of samples per pixel -2147483648"); + obj1.setSamples(TEST_INT_MIN); + QCOMPARE(0, obj1.samples()); // Makes no sense with a negative sample size + obj1.setSamples(3); + QTest::ignoreMessage(QtWarningMsg, "QGLFormat::setSamples: Cannot have negative number of samples per pixel -1"); + obj1.setSamples(-1); + QCOMPARE(3, obj1.samples()); + obj1.setSamples(TEST_INT_MAX); + QCOMPARE(TEST_INT_MAX, obj1.samples()); + + // int QGLFormat::swapInterval() + // void QGLFormat::setSwapInterval(int) + QCOMPARE(-1, obj1.swapInterval()); + obj1.setSwapInterval(0); + QCOMPARE(0, obj1.swapInterval()); + obj1.setSwapInterval(TEST_INT_MIN); + QCOMPARE(TEST_INT_MIN, obj1.swapInterval()); + obj1.setSwapInterval(-1); + QCOMPARE(-1, obj1.swapInterval()); + obj1.setSwapInterval(TEST_INT_MAX); + QCOMPARE(TEST_INT_MAX, obj1.swapInterval()); + + // bool QGLFormat::doubleBuffer() + // void QGLFormat::setDoubleBuffer(bool) + QCOMPARE(true, obj1.doubleBuffer()); + QVERIFY(obj1.testOption(QGL::DoubleBuffer)); + QVERIFY(!obj1.testOption(QGL::SingleBuffer)); + obj1.setDoubleBuffer(false); + QCOMPARE(false, obj1.doubleBuffer()); + QVERIFY(!obj1.testOption(QGL::DoubleBuffer)); + QVERIFY(obj1.testOption(QGL::SingleBuffer)); + obj1.setDoubleBuffer(true); + QCOMPARE(true, obj1.doubleBuffer()); + QVERIFY(obj1.testOption(QGL::DoubleBuffer)); + QVERIFY(!obj1.testOption(QGL::SingleBuffer)); + + // bool QGLFormat::depth() + // void QGLFormat::setDepth(bool) + QCOMPARE(true, obj1.depth()); + QVERIFY(obj1.testOption(QGL::DepthBuffer)); + QVERIFY(!obj1.testOption(QGL::NoDepthBuffer)); + obj1.setDepth(false); + QCOMPARE(false, obj1.depth()); + QVERIFY(!obj1.testOption(QGL::DepthBuffer)); + QVERIFY(obj1.testOption(QGL::NoDepthBuffer)); + obj1.setDepth(true); + QCOMPARE(true, obj1.depth()); + QVERIFY(obj1.testOption(QGL::DepthBuffer)); + QVERIFY(!obj1.testOption(QGL::NoDepthBuffer)); + + // bool QGLFormat::rgba() + // void QGLFormat::setRgba(bool) + QCOMPARE(true, obj1.rgba()); + QVERIFY(obj1.testOption(QGL::Rgba)); + QVERIFY(!obj1.testOption(QGL::ColorIndex)); + obj1.setRgba(false); + QCOMPARE(false, obj1.rgba()); + QVERIFY(!obj1.testOption(QGL::Rgba)); + QVERIFY(obj1.testOption(QGL::ColorIndex)); + obj1.setRgba(true); + QCOMPARE(true, obj1.rgba()); + QVERIFY(obj1.testOption(QGL::Rgba)); + QVERIFY(!obj1.testOption(QGL::ColorIndex)); + + // bool QGLFormat::alpha() + // void QGLFormat::setAlpha(bool) + QVERIFY(obj1.testOption(QGL::AlphaChannel)); + QVERIFY(!obj1.testOption(QGL::NoAlphaChannel)); + obj1.setAlpha(false); + QCOMPARE(false, obj1.alpha()); + QVERIFY(!obj1.testOption(QGL::AlphaChannel)); + QVERIFY(obj1.testOption(QGL::NoAlphaChannel)); + obj1.setAlpha(true); + QCOMPARE(true, obj1.alpha()); + QVERIFY(obj1.testOption(QGL::AlphaChannel)); + QVERIFY(!obj1.testOption(QGL::NoAlphaChannel)); + + // bool QGLFormat::accum() + // void QGLFormat::setAccum(bool) + obj1.setAccumBufferSize(0); + QCOMPARE(false, obj1.accum()); + QVERIFY(!obj1.testOption(QGL::AccumBuffer)); + QVERIFY(obj1.testOption(QGL::NoAccumBuffer)); + obj1.setAccum(false); + QCOMPARE(false, obj1.accum()); + QVERIFY(!obj1.testOption(QGL::AccumBuffer)); + QVERIFY(obj1.testOption(QGL::NoAccumBuffer)); + obj1.setAccum(true); + QCOMPARE(true, obj1.accum()); + QVERIFY(obj1.testOption(QGL::AccumBuffer)); + QVERIFY(!obj1.testOption(QGL::NoAccumBuffer)); + + // bool QGLFormat::stencil() + // void QGLFormat::setStencil(bool) + QCOMPARE(true, obj1.stencil()); + QVERIFY(obj1.testOption(QGL::StencilBuffer)); + QVERIFY(!obj1.testOption(QGL::NoStencilBuffer)); + obj1.setStencil(false); + QCOMPARE(false, obj1.stencil()); + QVERIFY(!obj1.testOption(QGL::StencilBuffer)); + QVERIFY(obj1.testOption(QGL::NoStencilBuffer)); + obj1.setStencil(true); + QCOMPARE(true, obj1.stencil()); + QVERIFY(obj1.testOption(QGL::StencilBuffer)); + QVERIFY(!obj1.testOption(QGL::NoStencilBuffer)); + + // bool QGLFormat::stereo() + // void QGLFormat::setStereo(bool) + QCOMPARE(false, obj1.stereo()); + QVERIFY(!obj1.testOption(QGL::StereoBuffers)); + QVERIFY(obj1.testOption(QGL::NoStereoBuffers)); + obj1.setStereo(false); + QCOMPARE(false, obj1.stereo()); + QVERIFY(!obj1.testOption(QGL::StereoBuffers)); + QVERIFY(obj1.testOption(QGL::NoStereoBuffers)); + obj1.setStereo(true); + QCOMPARE(true, obj1.stereo()); + QVERIFY(obj1.testOption(QGL::StereoBuffers)); + QVERIFY(!obj1.testOption(QGL::NoStereoBuffers)); + + // bool QGLFormat::directRendering() + // void QGLFormat::setDirectRendering(bool) + QCOMPARE(true, obj1.directRendering()); + QVERIFY(obj1.testOption(QGL::DirectRendering)); + QVERIFY(!obj1.testOption(QGL::IndirectRendering)); + obj1.setDirectRendering(false); + QCOMPARE(false, obj1.directRendering()); + QVERIFY(!obj1.testOption(QGL::DirectRendering)); + QVERIFY(obj1.testOption(QGL::IndirectRendering)); + obj1.setDirectRendering(true); + QCOMPARE(true, obj1.directRendering()); + QVERIFY(obj1.testOption(QGL::DirectRendering)); + QVERIFY(!obj1.testOption(QGL::IndirectRendering)); + + // bool QGLFormat::overlay() + // void QGLFormat::setOverlay(bool) + QCOMPARE(false, obj1.hasOverlay()); + QVERIFY(!obj1.testOption(QGL::HasOverlay)); + QVERIFY(obj1.testOption(QGL::NoOverlay)); + obj1.setOverlay(false); + QCOMPARE(false, obj1.hasOverlay()); + QVERIFY(!obj1.testOption(QGL::HasOverlay)); + QVERIFY(obj1.testOption(QGL::NoOverlay)); + obj1.setOverlay(true); + QCOMPARE(true, obj1.hasOverlay()); + QVERIFY(obj1.testOption(QGL::HasOverlay)); + QVERIFY(!obj1.testOption(QGL::NoOverlay)); + + // int QGLFormat::plane() + // void QGLFormat::setPlane(int) + QCOMPARE(0, obj1.plane()); + obj1.setPlane(0); + QCOMPARE(0, obj1.plane()); + obj1.setPlane(TEST_INT_MIN); + QCOMPARE(TEST_INT_MIN, obj1.plane()); + obj1.setPlane(TEST_INT_MAX); + QCOMPARE(TEST_INT_MAX, obj1.plane()); + + // int QGLFormat::major/minorVersion() + // void QGLFormat::setVersion(int, int) + QCOMPARE(obj1.majorVersion(), 2); + QCOMPARE(obj1.minorVersion(), 0); + obj1.setVersion(3, 2); + QCOMPARE(obj1.majorVersion(), 3); + QCOMPARE(obj1.minorVersion(), 2); + QTest::ignoreMessage(QtWarningMsg, "QGLFormat::setVersion: Cannot set zero or negative version number 0.1"); + obj1.setVersion(0, 1); + QCOMPARE(obj1.majorVersion(), 3); + QCOMPARE(obj1.minorVersion(), 2); + QTest::ignoreMessage(QtWarningMsg, "QGLFormat::setVersion: Cannot set zero or negative version number 3.-1"); + obj1.setVersion(3, -1); + QCOMPARE(obj1.majorVersion(), 3); + QCOMPARE(obj1.minorVersion(), 2); + obj1.setVersion(TEST_INT_MAX, TEST_INT_MAX - 1); + QCOMPARE(obj1.majorVersion(), TEST_INT_MAX); + QCOMPARE(obj1.minorVersion(), TEST_INT_MAX - 1); + + + // operator== and operator!= for QGLFormat + QGLFormat format1; + QGLFormat format2; + + QCOMPARE(format1, format2); + QVERIFY(!(format1 != format2)); + format1.setDoubleBuffer(false); + QVERIFY(!(format1 == format2)); + QVERIFY(format1 != format2); + format2.setDoubleBuffer(false); + QCOMPARE(format1, format2); + QVERIFY(!(format1 != format2)); + + format1.setDepthBufferSize(8); + QVERIFY(!(format1 == format2)); + QVERIFY(format1 != format2); + format2.setDepthBufferSize(8); + QCOMPARE(format1, format2); + QVERIFY(!(format1 != format2)); + + format1.setAccumBufferSize(8); + QVERIFY(!(format1 == format2)); + QVERIFY(format1 != format2); + format2.setAccumBufferSize(8); + QCOMPARE(format1, format2); + QVERIFY(!(format1 != format2)); + + format1.setRedBufferSize(8); + QVERIFY(!(format1 == format2)); + QVERIFY(format1 != format2); + format2.setRedBufferSize(8); + QCOMPARE(format1, format2); + QVERIFY(!(format1 != format2)); + + format1.setGreenBufferSize(8); + QVERIFY(!(format1 == format2)); + QVERIFY(format1 != format2); + format2.setGreenBufferSize(8); + QCOMPARE(format1, format2); + QVERIFY(!(format1 != format2)); + + format1.setBlueBufferSize(8); + QVERIFY(!(format1 == format2)); + QVERIFY(format1 != format2); + format2.setBlueBufferSize(8); + QCOMPARE(format1, format2); + QVERIFY(!(format1 != format2)); + + format1.setAlphaBufferSize(8); + QVERIFY(!(format1 == format2)); + QVERIFY(format1 != format2); + format2.setAlphaBufferSize(8); + QCOMPARE(format1, format2); + QVERIFY(!(format1 != format2)); + + format1.setStencilBufferSize(8); + QVERIFY(!(format1 == format2)); + QVERIFY(format1 != format2); + format2.setStencilBufferSize(8); + QCOMPARE(format1, format2); + QVERIFY(!(format1 != format2)); + + format1.setSamples(8); + QVERIFY(!(format1 == format2)); + QVERIFY(format1 != format2); + format2.setSamples(8); + QCOMPARE(format1, format2); + QVERIFY(!(format1 != format2)); + + format1.setSwapInterval(8); + QVERIFY(!(format1 == format2)); + QVERIFY(format1 != format2); + format2.setSwapInterval(8); + QCOMPARE(format1, format2); + QVERIFY(!(format1 != format2)); + + format1.setPlane(8); + QVERIFY(!(format1 == format2)); + QVERIFY(format1 != format2); + format2.setPlane(8); + QCOMPARE(format1, format2); + QVERIFY(!(format1 != format2)); + + format1.setVersion(3, 2); + QVERIFY(!(format1 == format2)); + QVERIFY(format1 != format2); + format2.setVersion(3, 2); + QCOMPARE(format1, format2); + QVERIFY(!(format1 != format2)); + + format1.setProfile(QGLFormat::CoreProfile); + QVERIFY(!(format1 == format2)); + QVERIFY(format1 != format2); + format2.setProfile(QGLFormat::CoreProfile); + QCOMPARE(format1, format2); + QVERIFY(!(format1 != format2)); + + format1.setOption(QGL::NoDeprecatedFunctions); + QVERIFY(!(format1 == format2)); + QVERIFY(format1 != format2); + format2.setOption(QGL::NoDeprecatedFunctions); + QCOMPARE(format1, format2); + QVERIFY(!(format1 != format2)); + + // Copy constructor and assignment for QGLFormat. + QGLFormat format3(format1); + QGLFormat format4; + QCOMPARE(format1, format3); + QVERIFY(format1 != format4); + format4 = format1; + QCOMPARE(format1, format4); + + // Check that modifying a copy doesn't affect the original. + format3.setRedBufferSize(16); + format4.setPlane(16); + QCOMPARE(format1.redBufferSize(), 8); + QCOMPARE(format1.plane(), 8); + + // Check the QGLFormat constructor that takes an option list. + QGLFormat format5 + (QGL::DepthBuffer | QGL::StereoBuffers | QGL::ColorIndex, 3); + QVERIFY(format5.depth()); + QVERIFY(format5.stereo()); + QVERIFY(format5.doubleBuffer()); // From defaultFormat() + QVERIFY(!format5.hasOverlay()); // From defaultFormat() + QVERIFY(!format5.rgba()); + QCOMPARE(format5.plane(), 3); + + // The default format should be the same as QGLFormat(). + QCOMPARE(QGLFormat::defaultFormat(), QGLFormat()); + + // Modify the default format and check that it was changed. + QGLFormat::setDefaultFormat(format1); + QCOMPARE(QGLFormat::defaultFormat(), format1); + + // Restore the default format. + QGLFormat::setDefaultFormat(QGLFormat()); + QCOMPARE(QGLFormat::defaultFormat(), QGLFormat()); + + // Check the default overlay format's expected values. + QGLFormat overlay(QGLFormat::defaultOverlayFormat()); + QCOMPARE(overlay.depthBufferSize(), -1); + QCOMPARE(overlay.accumBufferSize(), -1); + QCOMPARE(overlay.redBufferSize(), -1); + QCOMPARE(overlay.greenBufferSize(), -1); + QCOMPARE(overlay.blueBufferSize(), -1); + QCOMPARE(overlay.alphaBufferSize(), -1); + QCOMPARE(overlay.samples(), -1); + QCOMPARE(overlay.swapInterval(), -1); + QCOMPARE(overlay.plane(), 1); + QVERIFY(!overlay.sampleBuffers()); + QVERIFY(!overlay.doubleBuffer()); + QVERIFY(!overlay.depth()); + QVERIFY(!overlay.rgba()); + QVERIFY(!overlay.alpha()); + QVERIFY(!overlay.accum()); + QVERIFY(!overlay.stencil()); + QVERIFY(!overlay.stereo()); + QVERIFY(overlay.directRendering()); // Only option that should be on. + QVERIFY(!overlay.hasOverlay()); // Overlay doesn't need an overlay! + + // Modify the default overlay format and check that it was changed. + QGLFormat::setDefaultOverlayFormat(format1); + QCOMPARE(QGLFormat::defaultOverlayFormat(), format1); + + // Restore the default overlay format. + QGLFormat::setDefaultOverlayFormat(overlay); + QCOMPARE(QGLFormat::defaultOverlayFormat(), overlay); + + MyGLContext obj2(obj1); + // bool QGLContext::windowCreated() + // void QGLContext::setWindowCreated(bool) + obj2.setWindowCreated(false); + QCOMPARE(false, obj2.windowCreated()); + obj2.setWindowCreated(true); + QCOMPARE(true, obj2.windowCreated()); + + // bool QGLContext::initialized() + // void QGLContext::setInitialized(bool) + obj2.setInitialized(false); + QCOMPARE(false, obj2.initialized()); + obj2.setInitialized(true); + QCOMPARE(true, obj2.initialized()); + + MyGLWidget obj3; + // bool QGLWidget::autoBufferSwap() + // void QGLWidget::setAutoBufferSwap(bool) + obj3.setAutoBufferSwap(false); + QCOMPARE(false, obj3.autoBufferSwap()); + obj3.setAutoBufferSwap(true); + QCOMPARE(true, obj3.autoBufferSwap()); +} + +#ifdef QT_BUILD_INTERNAL +QT_BEGIN_NAMESPACE +extern QGLFormat::OpenGLVersionFlags qOpenGLVersionFlagsFromString(const QString &versionString); +QT_END_NAMESPACE +#endif + +#ifdef QT_BUILD_INTERNAL +void tst_QGL::openGLVersionCheck() +{ + QString versionString; + QGLFormat::OpenGLVersionFlags expectedFlag; + QGLFormat::OpenGLVersionFlags versionFlag; + + versionString = "1.1 Irix 6.5"; + expectedFlag = QGLFormat::OpenGL_Version_1_1; + versionFlag = qOpenGLVersionFlagsFromString(versionString); + QCOMPARE(versionFlag, expectedFlag); + + versionString = "1.2 Microsoft"; + expectedFlag = QGLFormat::OpenGL_Version_1_2 | QGLFormat::OpenGL_Version_1_1; + versionFlag = qOpenGLVersionFlagsFromString(versionString); + QCOMPARE(versionFlag, expectedFlag); + + versionString = "1.2.1"; + expectedFlag = QGLFormat::OpenGL_Version_1_2 | QGLFormat::OpenGL_Version_1_1; + versionFlag = qOpenGLVersionFlagsFromString(versionString); + QCOMPARE(versionFlag, expectedFlag); + + versionString = "1.3 NVIDIA"; + expectedFlag = QGLFormat::OpenGL_Version_1_3 | QGLFormat::OpenGL_Version_1_2 | QGLFormat::OpenGL_Version_1_1; + versionFlag = qOpenGLVersionFlagsFromString(versionString); + QCOMPARE(versionFlag, expectedFlag); + + versionString = "1.4"; + expectedFlag = QGLFormat::OpenGL_Version_1_4 | QGLFormat::OpenGL_Version_1_3 | QGLFormat::OpenGL_Version_1_2 | QGLFormat::OpenGL_Version_1_1; + versionFlag = qOpenGLVersionFlagsFromString(versionString); + QCOMPARE(versionFlag, expectedFlag); + + versionString = "1.5 NVIDIA"; + expectedFlag = QGLFormat::OpenGL_Version_1_5 | QGLFormat::OpenGL_Version_1_4 | QGLFormat::OpenGL_Version_1_3 | QGLFormat::OpenGL_Version_1_2 | QGLFormat::OpenGL_Version_1_1; + versionFlag = qOpenGLVersionFlagsFromString(versionString); + QCOMPARE(versionFlag, expectedFlag); + + versionString = "2.0.2 NVIDIA 87.62"; + expectedFlag = QGLFormat::OpenGL_Version_2_0 | QGLFormat::OpenGL_Version_1_5 | QGLFormat::OpenGL_Version_1_4 | QGLFormat::OpenGL_Version_1_3 | QGLFormat::OpenGL_Version_1_2 | QGLFormat::OpenGL_Version_1_1; + versionFlag = qOpenGLVersionFlagsFromString(versionString); + QCOMPARE(versionFlag, expectedFlag); + + versionString = "2.1 NVIDIA"; + expectedFlag = QGLFormat::OpenGL_Version_2_1 | QGLFormat::OpenGL_Version_2_0 | QGLFormat::OpenGL_Version_1_5 | QGLFormat::OpenGL_Version_1_4 | QGLFormat::OpenGL_Version_1_3 | QGLFormat::OpenGL_Version_1_2 | QGLFormat::OpenGL_Version_1_1; + versionFlag = qOpenGLVersionFlagsFromString(versionString); + QCOMPARE(versionFlag, expectedFlag); + + versionString = "2.1"; + expectedFlag = QGLFormat::OpenGL_Version_2_1 | QGLFormat::OpenGL_Version_2_0 | QGLFormat::OpenGL_Version_1_5 | QGLFormat::OpenGL_Version_1_4 | QGLFormat::OpenGL_Version_1_3 | QGLFormat::OpenGL_Version_1_2 | QGLFormat::OpenGL_Version_1_1; + versionFlag = qOpenGLVersionFlagsFromString(versionString); + QCOMPARE(versionFlag, expectedFlag); + + versionString = "OpenGL ES-CM 1.0 ATI"; + expectedFlag = QGLFormat::OpenGL_ES_Common_Version_1_0 | QGLFormat::OpenGL_ES_CommonLite_Version_1_0; + versionFlag = qOpenGLVersionFlagsFromString(versionString); + QCOMPARE(versionFlag, expectedFlag); + + versionString = "OpenGL ES-CL 1.0 ATI"; + expectedFlag = QGLFormat::OpenGL_ES_CommonLite_Version_1_0; + versionFlag = qOpenGLVersionFlagsFromString(versionString); + QCOMPARE(versionFlag, expectedFlag); + + versionString = "OpenGL ES-CM 1.1 ATI"; + expectedFlag = QGLFormat::OpenGL_ES_Common_Version_1_1 | QGLFormat::OpenGL_ES_CommonLite_Version_1_1 | QGLFormat::OpenGL_ES_Common_Version_1_0 | QGLFormat::OpenGL_ES_CommonLite_Version_1_0; + versionFlag = qOpenGLVersionFlagsFromString(versionString); + QCOMPARE(versionFlag, expectedFlag); + + versionString = "OpenGL ES-CL 1.1 ATI"; + expectedFlag = QGLFormat::OpenGL_ES_CommonLite_Version_1_1 | QGLFormat::OpenGL_ES_CommonLite_Version_1_0; + versionFlag = qOpenGLVersionFlagsFromString(versionString); + QCOMPARE(versionFlag, expectedFlag); + + versionString = "OpenGL ES 2.0 ATI"; + expectedFlag = QGLFormat::OpenGL_ES_Version_2_0; + versionFlag = qOpenGLVersionFlagsFromString(versionString); + QCOMPARE(versionFlag, expectedFlag); + + versionString = "3.0"; + expectedFlag = QGLFormat::OpenGL_Version_3_0 | QGLFormat::OpenGL_Version_2_1 | QGLFormat::OpenGL_Version_2_0 | QGLFormat::OpenGL_Version_1_5 | QGLFormat::OpenGL_Version_1_4 | QGLFormat::OpenGL_Version_1_3 | QGLFormat::OpenGL_Version_1_2 | QGLFormat::OpenGL_Version_1_1; + versionFlag = qOpenGLVersionFlagsFromString(versionString); + QCOMPARE(versionFlag, expectedFlag); + + QGLWidget glWidget; + glWidget.show(); + glWidget.makeCurrent(); + + // This is unfortunately the only test we can make on the actual openGLVersionFlags() + // However, the complicated parts are in openGLVersionFlags(const QString &versionString) + // tested above + +#if defined(QT_OPENGL_ES_2) + QVERIFY(QGLFormat::openGLVersionFlags() & QGLFormat::OpenGL_ES_Version_2_0); +#else + if (QOpenGLContext::currentContext()->isOpenGLES()) + QVERIFY(QGLFormat::openGLVersionFlags() & QGLFormat::OpenGL_ES_Version_2_0); + else + QVERIFY(QGLFormat::openGLVersionFlags() & QGLFormat::OpenGL_Version_1_1); +#endif //defined(QT_OPENGL_ES_2) +} +#endif //QT_BUILD_INTERNAL + +static bool fuzzyComparePixels(const QRgb testPixel, const QRgb refPixel, const char* file, int line, int x = -1, int y = -1) +{ + static int maxFuzz = 1; + static bool maxFuzzSet = false; + + // On 16 bpp systems, we need to allow for more fuzz: + if (!maxFuzzSet) { + maxFuzzSet = true; + if (appDefaultDepth() < 24) + maxFuzz = 32; + } + + int redFuzz = qAbs(qRed(testPixel) - qRed(refPixel)); + int greenFuzz = qAbs(qGreen(testPixel) - qGreen(refPixel)); + int blueFuzz = qAbs(qBlue(testPixel) - qBlue(refPixel)); + int alphaFuzz = qAbs(qAlpha(testPixel) - qAlpha(refPixel)); + + if (refPixel != 0 && testPixel == 0) { + QString msg; + if (x >= 0) { + msg = QString("Test pixel [%1, %2] is null (black) when it should be (%3,%4,%5,%6)") + .arg(x).arg(y) + .arg(qRed(refPixel)).arg(qGreen(refPixel)).arg(qBlue(refPixel)).arg(qAlpha(refPixel)); + } else { + msg = QString("Test pixel is null (black) when it should be (%2,%3,%4,%5)") + .arg(qRed(refPixel)).arg(qGreen(refPixel)).arg(qBlue(refPixel)).arg(qAlpha(refPixel)); + } + + QTest::qFail(msg.toLatin1(), file, line); + return false; + } + + if (redFuzz > maxFuzz || greenFuzz > maxFuzz || blueFuzz > maxFuzz || alphaFuzz > maxFuzz) { + QString msg; + + if (x >= 0) + msg = QString("Pixel [%1,%2]: ").arg(x).arg(y); + else + msg = QString("Pixel "); + + msg += QString("Max fuzz (%1) exceeded: (%2,%3,%4,%5) vs (%6,%7,%8,%9)") + .arg(maxFuzz) + .arg(qRed(testPixel)).arg(qGreen(testPixel)).arg(qBlue(testPixel)).arg(qAlpha(testPixel)) + .arg(qRed(refPixel)).arg(qGreen(refPixel)).arg(qBlue(refPixel)).arg(qAlpha(refPixel)); + QTest::qFail(msg.toLatin1(), file, line); + return false; + } + return true; +} + +static void fuzzyCompareImages(const QImage &testImage, const QImage &referenceImage, const char* file, int line) +{ + QCOMPARE(testImage.width(), referenceImage.width()); + QCOMPARE(testImage.height(), referenceImage.height()); + + for (int y = 0; y < testImage.height(); y++) { + for (int x = 0; x < testImage.width(); x++) { + if (!fuzzyComparePixels(testImage.pixel(x, y), referenceImage.pixel(x, y), file, line, x, y)) { + // Might as well save the images for easier debugging: + referenceImage.save("referenceImage.png"); + testImage.save("testImage.png"); + return; + } + } + } +} + +#define QFUZZY_COMPARE_IMAGES(A,B) \ + fuzzyCompareImages(A, B, __FILE__, __LINE__) + +#define QFUZZY_COMPARE_PIXELS(A,B) \ + fuzzyComparePixels(A, B, __FILE__, __LINE__) + +class UnclippedWidget : public QWidget +{ +public: + bool painted; + + UnclippedWidget() + : painted(false) + { + } + + void paintEvent(QPaintEvent *) + { + QPainter p(this); + p.fillRect(rect().adjusted(-1000, -1000, 1000, 1000), Qt::black); + + painted = true; + } +}; + +void tst_QGL::graphicsViewClipping() +{ + const int size = 64; + UnclippedWidget *widget = new UnclippedWidget; + widget->setFixedSize(size, size); + + QGraphicsScene scene; + + scene.addWidget(widget)->setPos(0, 0); + + QGraphicsView view(&scene); + // Use Qt::Tool as fully decorated windows have a minimum width of 160 on Windows. + view.setWindowFlags(view.windowFlags() | Qt::Tool); + view.setBackgroundBrush(Qt::white); + view.resize(2*size, 2*size); + + QGLWidget *viewport = new QGLWidget; + view.setViewport(viewport); + view.show(); + qApp->setActiveWindow(&view); + + if (!viewport->isValid()) + return; + + scene.setSceneRect(view.viewport()->rect()); + + QVERIFY(QTest::qWaitForWindowExposed(view.viewport()->windowHandle())); + #ifdef Q_OS_MAC + // The black rectangle jumps from the center to the upper left for some reason. + QTest::qWait(100); + #endif + + QTRY_VERIFY(widget->painted); + + QImage image = viewport->grabFrameBuffer(); + QImage expected = image; + + QPainter p(&expected); + p.fillRect(expected.rect(), Qt::white); + p.fillRect(QRect(0, 0, size, size), Qt::black); + p.end(); + + QFUZZY_COMPARE_IMAGES(image, expected); +} + +void tst_QGL::partialGLWidgetUpdates_data() +{ + QTest::addColumn<bool>("doubleBufferedContext"); + QTest::addColumn<bool>("autoFillBackground"); + QTest::addColumn<bool>("supportsPartialUpdates"); + + QTest::newRow("Double buffered context") << true << true << false; + QTest::newRow("Double buffered context without auto-fill background") << true << false << false; + QTest::newRow("Single buffered context") << false << true << false; + QTest::newRow("Single buffered context without auto-fill background") << false << false << true; +} + +void tst_QGL::partialGLWidgetUpdates() +{ + QFETCH(bool, doubleBufferedContext); + QFETCH(bool, autoFillBackground); + QFETCH(bool, supportsPartialUpdates); + + class MyGLWidget : public QGLWidget + { + public: + QRegion paintEventRegion; + void paintEvent(QPaintEvent *e) + { + paintEventRegion = e->region(); + } + }; + + QGLFormat format = QGLFormat::defaultFormat(); + format.setDoubleBuffer(doubleBufferedContext); + QGLFormat::setDefaultFormat(format); + + MyGLWidget widget; + widget.setFixedSize(150, 150); + widget.setAutoFillBackground(autoFillBackground); + widget.show(); + QVERIFY(QTest::qWaitForWindowExposed(&widget)); + QCoreApplication::processEvents(); // Process all queued paint events + + if (widget.format().doubleBuffer() != doubleBufferedContext) + QSKIP("Platform does not support requested format"); + + widget.paintEventRegion = QRegion(); + widget.repaint(50, 50, 50, 50); + + if (supportsPartialUpdates) + QCOMPARE(widget.paintEventRegion, QRegion(50, 50, 50, 50)); + else + QCOMPARE(widget.paintEventRegion, QRegion(widget.rect())); +} + + +// This tests that rendering to a QGLPBuffer using QPainter works. +void tst_QGL::glPBufferRendering() +{ + if (!QGLPixelBuffer::hasOpenGLPbuffers()) + QSKIP("QGLPixelBuffer not supported on this platform"); + + QGLPixelBuffer* pbuf = new QGLPixelBuffer(128, 128); + + QPainter p; + bool begun = p.begin(pbuf); + QVERIFY(begun); + + QPaintEngine::Type engineType = p.paintEngine()->type(); + QVERIFY(engineType == QPaintEngine::OpenGL || engineType == QPaintEngine::OpenGL2); + + p.fillRect(0, 0, 128, 128, Qt::red); + p.fillRect(32, 32, 64, 64, Qt::blue); + p.end(); + + QImage fb = pbuf->toImage(); + delete pbuf; + + QImage reference(128, 128, fb.format()); + p.begin(&reference); + p.fillRect(0, 0, 128, 128, Qt::red); + p.fillRect(32, 32, 64, 64, Qt::blue); + p.end(); + + QFUZZY_COMPARE_IMAGES(fb, reference); +} + +void tst_QGL::glWidgetWithAlpha() +{ + QGLWidget* w = new QGLWidget(QGLFormat(QGL::AlphaChannel)); + w->show(); + QVERIFY(QTest::qWaitForWindowExposed(w)); + + delete w; +} + + +void qt_opengl_draw_test_pattern(QPainter* painter, int width, int height) +{ + QPainterPath intersectingPath; + intersectingPath.moveTo(0, 0); + intersectingPath.lineTo(100, 0); + intersectingPath.lineTo(0, 100); + intersectingPath.lineTo(100, 100); + intersectingPath.closeSubpath(); + + QPainterPath trianglePath; + trianglePath.moveTo(50, 0); + trianglePath.lineTo(100, 100); + trianglePath.lineTo(0, 100); + trianglePath.closeSubpath(); + + painter->setTransform(QTransform()); // reset xform + painter->fillRect(-1, -1, width+2, height+2, Qt::red); // Background + painter->translate(14, 14); + painter->fillPath(intersectingPath, Qt::blue); // Test stencil buffer works + painter->translate(128, 0); + painter->setClipPath(trianglePath); // Test depth buffer works + painter->setTransform(QTransform()); // reset xform ready for fill + painter->fillRect(-1, -1, width+2, height+2, Qt::green); +} + +void qt_opengl_check_test_pattern(const QImage& img) +{ + // As we're doing more than trivial painting, we can't just compare to + // an image rendered with raster. Instead, we sample at well-defined + // test-points: + QFUZZY_COMPARE_PIXELS(img.pixel(39, 64), QColor(Qt::red).rgb()); + QFUZZY_COMPARE_PIXELS(img.pixel(89, 64), QColor(Qt::red).rgb()); + QFUZZY_COMPARE_PIXELS(img.pixel(64, 39), QColor(Qt::blue).rgb()); + QFUZZY_COMPARE_PIXELS(img.pixel(64, 89), QColor(Qt::blue).rgb()); + + QFUZZY_COMPARE_PIXELS(img.pixel(167, 39), QColor(Qt::red).rgb()); + QFUZZY_COMPARE_PIXELS(img.pixel(217, 39), QColor(Qt::red).rgb()); + QFUZZY_COMPARE_PIXELS(img.pixel(192, 64), QColor(Qt::green).rgb()); +} + +class GLWidget : public QGLWidget +{ +public: + GLWidget(QWidget* p = 0) + : QGLWidget(p), beginOk(false), engineType(QPaintEngine::MaxUser) {} + bool beginOk; + QPaintEngine::Type engineType; + void paintGL() + { + QPainter p; + beginOk = p.begin(this); + QPaintEngine* pe = p.paintEngine(); + engineType = pe->type(); + + qt_opengl_draw_test_pattern(&p, width(), height()); + + // No p.end() or swap buffers, should be done automatically + } + +}; + +void tst_QGL::glWidgetRendering() +{ + GLWidget w; + w.resize(256, 128); + w.show(); + + QVERIFY(QTest::qWaitForWindowExposed(&w)); + + QVERIFY(w.beginOk); + QVERIFY(w.engineType == QPaintEngine::OpenGL || w.engineType == QPaintEngine::OpenGL2); + +#if defined(Q_OS_QNX) + // glReadPixels reads from the back buffer. On QNX the buffer is not preserved + // after a buffer swap. This is why we have to swap the buffer explicitly before calling + // grabFrameBuffer to retrieve the content of the front buffer. + w.swapBuffers(); +#endif + QImage fb = w.grabFrameBuffer(false); + qt_opengl_check_test_pattern(fb); +} + +void tst_QGL::glFBOSimpleRendering() +{ + if (!QGLFramebufferObject::hasOpenGLFramebufferObjects()) + QSKIP("QGLFramebufferObject not supported on this platform"); + + QGLWidget glw; + glw.makeCurrent(); + + // No multisample with combined depth/stencil attachment: + QGLFramebufferObjectFormat fboFormat; + fboFormat.setAttachment(QGLFramebufferObject::NoAttachment); + + QGLFramebufferObject *fbo = new QGLFramebufferObject(200, 100, fboFormat); + + fbo->bind(); + + QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions(); + funcs->glClearColor(1.0, 0.0, 0.0, 1.0); + funcs->glClear(GL_COLOR_BUFFER_BIT); + funcs->glFinish(); + + QImage fb = fbo->toImage().convertToFormat(QImage::Format_RGB32); + QImage reference(fb.size(), QImage::Format_RGB32); + reference.fill(0xffff0000); + + QFUZZY_COMPARE_IMAGES(fb, reference); + + delete fbo; +} + +// NOTE: This tests that CombinedDepthStencil attachment works by assuming the +// GL2 engine is being used and is implemented the same way as it was when +// this autotest was written. If this is not the case, there may be some +// false-positives: I.e. The test passes when either the depth or stencil +// buffer is actually missing. But that's probably ok anyway. +void tst_QGL::glFBORendering() +{ +#if defined(Q_OS_QNX) + QSKIP("Reading the QGLFramebufferObject is unsupported on this platform"); +#endif + if (!QGLFramebufferObject::hasOpenGLFramebufferObjects()) + QSKIP("QGLFramebufferObject not supported on this platform"); + + QGLWidget glw; + glw.makeCurrent(); + + // No multisample with combined depth/stencil attachment: + QGLFramebufferObjectFormat fboFormat; + fboFormat.setAttachment(QGLFramebufferObject::CombinedDepthStencil); + + // Don't complicate things by using NPOT: + QGLFramebufferObject *fbo = new QGLFramebufferObject(256, 128, fboFormat); + + if (fbo->attachment() != QGLFramebufferObject::CombinedDepthStencil) { + delete fbo; + QSKIP("FBOs missing combined depth~stencil support"); + } + + QPainter fboPainter; + bool painterBegun = fboPainter.begin(fbo); + QVERIFY(painterBegun); + + qt_opengl_draw_test_pattern(&fboPainter, fbo->width(), fbo->height()); + + fboPainter.end(); + + QImage fb = fbo->toImage().convertToFormat(QImage::Format_RGB32); + delete fbo; + + qt_opengl_check_test_pattern(fb); +} + +class QOpenGLFramebufferObjectPaintDevice : public QOpenGLPaintDevice +{ +public: + QOpenGLFramebufferObjectPaintDevice(int width, int height) + : QOpenGLPaintDevice(width, height) + , m_fbo(width, height, QOpenGLFramebufferObject::CombinedDepthStencil) + { + } + + void ensureActiveTarget() + { + m_fbo.bind(); + } + + QImage toImage() const + { + return m_fbo.toImage(); + } + +private: + QOpenGLFramebufferObject m_fbo; +}; + +void tst_QGL::currentFboSync() +{ + if (!QGLFramebufferObject::hasOpenGLFramebufferObjects()) + QSKIP("QGLFramebufferObject not supported on this platform"); + +#if defined(Q_OS_QNX) + QSKIP("Reading the QGLFramebufferObject is unsupported on this platform"); +#endif + + QGLWidget glw; + glw.makeCurrent(); + + // For some reason we offer inter-operatibility between QGL and QOpenGL + // paint engines. (?!) Let's check if the two engines can be used to perform + // drawing in turns on different targets within the same context. + + { + QGLFramebufferObject fbo1(256, 256, QGLFramebufferObject::CombinedDepthStencil); + + QOpenGLFramebufferObjectPaintDevice fbo2(256, 256); + + QImage sourceImage(256, 256, QImage::Format_ARGB32_Premultiplied); + QPainter sourcePainter(&sourceImage); + qt_opengl_draw_test_pattern(&sourcePainter, 256, 256); + + QPainter fbo1Painter(&fbo1); + + QPainter fbo2Painter(&fbo2); + fbo2Painter.drawImage(0, 0, sourceImage); + fbo2Painter.end(); + + QImage fbo2Image = fbo2.toImage(); + + fbo1Painter.drawImage(0, 0, sourceImage); + fbo1Painter.end(); + + QGLFramebufferObject::bindDefault(); + + // Convert the QGLFBO's result since QOpenGLFBO uses a wider + // variety of possible return formats. + QCOMPARE(fbo1.toImage().convertToFormat(fbo2Image.format()), fbo2Image); + } + + { + QGLFramebufferObject fbo1(512, 512, QGLFramebufferObject::CombinedDepthStencil); + + QOpenGLFramebufferObjectPaintDevice fbo2(256, 256); + + QImage sourceImage(256, 256, QImage::Format_ARGB32_Premultiplied); + QPainter sourcePainter(&sourceImage); + qt_opengl_draw_test_pattern(&sourcePainter, 256, 256); + + QPainter fbo2Painter(&fbo2); + fbo2Painter.drawImage(0, 0, sourceImage); + QImage fbo2Image1 = fbo2.toImage(); + fbo2Painter.fillRect(0, 0, 256, 256, Qt::white); + + QPainter fbo1Painter(&fbo1); + fbo1Painter.drawImage(0, 0, sourceImage); + fbo1Painter.end(); + + // check that the OpenGL paint engine now knows it needs to sync + fbo2Painter.drawImage(0, 0, sourceImage); + QImage fbo2Image2 = fbo2.toImage(); + + fbo2Painter.end(); + + QCOMPARE(fbo2Image1, fbo2Image2); + } +} + +// Tests multiple QPainters active on different FBOs at the same time, with +// interleaving painting. Performance-wise, this is sub-optimal, but it still +// has to work flawlessly +void tst_QGL::multipleFBOInterleavedRendering() +{ + if (!QGLFramebufferObject::hasOpenGLFramebufferObjects()) + QSKIP("QGLFramebufferObject not supported on this platform"); + + QGLWidget glw; + glw.makeCurrent(); + + // No multisample with combined depth/stencil attachment: + QGLFramebufferObjectFormat fboFormat; + fboFormat.setAttachment(QGLFramebufferObject::CombinedDepthStencil); + + QGLFramebufferObject *fbo1 = new QGLFramebufferObject(256, 128, fboFormat); + QGLFramebufferObject *fbo2 = new QGLFramebufferObject(256, 128, fboFormat); + QGLFramebufferObject *fbo3 = new QGLFramebufferObject(256, 128, fboFormat); + + if ( (fbo1->attachment() != QGLFramebufferObject::CombinedDepthStencil) || + (fbo2->attachment() != QGLFramebufferObject::CombinedDepthStencil) || + (fbo3->attachment() != QGLFramebufferObject::CombinedDepthStencil) ) + { + delete fbo1; + delete fbo2; + delete fbo3; + QSKIP("FBOs missing combined depth~stencil support"); + } + + QPainter fbo1Painter; + QPainter fbo2Painter; + QPainter fbo3Painter; + + QVERIFY(fbo1Painter.begin(fbo1)); + QVERIFY(fbo2Painter.begin(fbo2)); + QVERIFY(fbo3Painter.begin(fbo3)); + + // Confirm we're using the GL2 engine, as interleaved rendering isn't supported + // on the GL1 engine: + if (fbo1Painter.paintEngine()->type() != QPaintEngine::OpenGL2) + QSKIP("Interleaved GL rendering requires OpenGL 2.0 or higher"); + + QPainterPath intersectingPath; + intersectingPath.moveTo(0, 0); + intersectingPath.lineTo(100, 0); + intersectingPath.lineTo(0, 100); + intersectingPath.lineTo(100, 100); + intersectingPath.closeSubpath(); + + QPainterPath trianglePath; + trianglePath.moveTo(50, 0); + trianglePath.lineTo(100, 100); + trianglePath.lineTo(0, 100); + trianglePath.closeSubpath(); + + fbo1Painter.fillRect(0, 0, fbo1->width(), fbo1->height(), Qt::red); // Background + fbo2Painter.fillRect(0, 0, fbo2->width(), fbo2->height(), Qt::green); // Background + fbo3Painter.fillRect(0, 0, fbo3->width(), fbo3->height(), Qt::blue); // Background + + fbo1Painter.translate(14, 14); + fbo2Painter.translate(14, 14); + fbo3Painter.translate(14, 14); + + fbo1Painter.fillPath(intersectingPath, Qt::blue); // Test stencil buffer works + fbo2Painter.fillPath(intersectingPath, Qt::red); // Test stencil buffer works + fbo3Painter.fillPath(intersectingPath, Qt::green); // Test stencil buffer works + + fbo1Painter.translate(128, 0); + fbo2Painter.translate(128, 0); + fbo3Painter.translate(128, 0); + + fbo1Painter.setClipPath(trianglePath); + fbo2Painter.setClipPath(trianglePath); + fbo3Painter.setClipPath(trianglePath); + + fbo1Painter.setTransform(QTransform()); // reset xform + fbo2Painter.setTransform(QTransform()); // reset xform + fbo3Painter.setTransform(QTransform()); // reset xform + + fbo1Painter.fillRect(0, 0, fbo1->width(), fbo1->height(), Qt::green); + fbo2Painter.fillRect(0, 0, fbo2->width(), fbo2->height(), Qt::blue); + fbo3Painter.fillRect(0, 0, fbo3->width(), fbo3->height(), Qt::red); + + fbo1Painter.end(); + fbo2Painter.end(); + fbo3Painter.end(); + + QImage fb1 = fbo1->toImage().convertToFormat(QImage::Format_RGB32); + QImage fb2 = fbo2->toImage().convertToFormat(QImage::Format_RGB32); + QImage fb3 = fbo3->toImage().convertToFormat(QImage::Format_RGB32); + delete fbo1; + delete fbo2; + delete fbo3; + + // As we're doing more than trivial painting, we can't just compare to + // an image rendered with raster. Instead, we sample at well-defined + // test-points: + QFUZZY_COMPARE_PIXELS(fb1.pixel(39, 64), QColor(Qt::red).rgb()); + QFUZZY_COMPARE_PIXELS(fb1.pixel(89, 64), QColor(Qt::red).rgb()); + QFUZZY_COMPARE_PIXELS(fb1.pixel(64, 39), QColor(Qt::blue).rgb()); + QFUZZY_COMPARE_PIXELS(fb1.pixel(64, 89), QColor(Qt::blue).rgb()); + QFUZZY_COMPARE_PIXELS(fb1.pixel(167, 39), QColor(Qt::red).rgb()); + QFUZZY_COMPARE_PIXELS(fb1.pixel(217, 39), QColor(Qt::red).rgb()); + QFUZZY_COMPARE_PIXELS(fb1.pixel(192, 64), QColor(Qt::green).rgb()); + + QFUZZY_COMPARE_PIXELS(fb2.pixel(39, 64), QColor(Qt::green).rgb()); + QFUZZY_COMPARE_PIXELS(fb2.pixel(89, 64), QColor(Qt::green).rgb()); + QFUZZY_COMPARE_PIXELS(fb2.pixel(64, 39), QColor(Qt::red).rgb()); + QFUZZY_COMPARE_PIXELS(fb2.pixel(64, 89), QColor(Qt::red).rgb()); + QFUZZY_COMPARE_PIXELS(fb2.pixel(167, 39), QColor(Qt::green).rgb()); + QFUZZY_COMPARE_PIXELS(fb2.pixel(217, 39), QColor(Qt::green).rgb()); + QFUZZY_COMPARE_PIXELS(fb2.pixel(192, 64), QColor(Qt::blue).rgb()); + + QFUZZY_COMPARE_PIXELS(fb3.pixel(39, 64), QColor(Qt::blue).rgb()); + QFUZZY_COMPARE_PIXELS(fb3.pixel(89, 64), QColor(Qt::blue).rgb()); + QFUZZY_COMPARE_PIXELS(fb3.pixel(64, 39), QColor(Qt::green).rgb()); + QFUZZY_COMPARE_PIXELS(fb3.pixel(64, 89), QColor(Qt::green).rgb()); + QFUZZY_COMPARE_PIXELS(fb3.pixel(167, 39), QColor(Qt::blue).rgb()); + QFUZZY_COMPARE_PIXELS(fb3.pixel(217, 39), QColor(Qt::blue).rgb()); + QFUZZY_COMPARE_PIXELS(fb3.pixel(192, 64), QColor(Qt::red).rgb()); +} + +class FBOUseInGLWidget : public QGLWidget +{ +public: + bool widgetPainterBeginOk; + bool fboPainterBeginOk; + QImage fboImage; +protected: + void paintEvent(QPaintEvent*) + { + QPainter widgetPainter; + widgetPainterBeginOk = widgetPainter.begin(this); + QGLFramebufferObjectFormat fboFormat; + fboFormat.setAttachment(QGLFramebufferObject::NoAttachment); + QGLFramebufferObject *fbo = new QGLFramebufferObject(100, 100, fboFormat); + + QPainter fboPainter; + fboPainterBeginOk = fboPainter.begin(fbo); + fboPainter.fillRect(-1, -1, 130, 130, Qt::red); + fboPainter.end(); + fboImage = fbo->toImage(); + + widgetPainter.fillRect(-1, -1, width()+2, height()+2, Qt::blue); + + delete fbo; + } + +}; + +void tst_QGL::glFBOUseInGLWidget() +{ + if (!QGLFramebufferObject::hasOpenGLFramebufferObjects()) + QSKIP("QGLFramebufferObject not supported on this platform"); + + FBOUseInGLWidget w; + w.resize(100, 100); + w.showNormal(); + + QVERIFY(QTest::qWaitForWindowExposed(&w)); + + QVERIFY(w.widgetPainterBeginOk); + QVERIFY(w.fboPainterBeginOk); + +#if defined(Q_OS_QNX) + // glReadPixels reads from the back buffer. On QNX the buffer is not preserved + // after a buffer swap. This is why we have to swap the buffer explicitly before calling + // grabFrameBuffer to retrieve the content of the front buffer + w.swapBuffers(); +#endif + + QImage widgetFB = w.grabFrameBuffer(false); + QImage widgetReference(widgetFB.size(), widgetFB.format()); + widgetReference.fill(0xff0000ff); + QFUZZY_COMPARE_IMAGES(widgetFB, widgetReference); + + QImage fboReference(w.fboImage.size(), w.fboImage.format()); + fboReference.fill(0xffff0000); + QFUZZY_COMPARE_IMAGES(w.fboImage, fboReference); +} + +void tst_QGL::glWidgetReparent() +{ + // Try it as a top-level first: + GLWidget *widget = new GLWidget; + widget->setObjectName(QStringLiteral("glWidget1")); + widget->setGeometry(0, 0, 200, 30); + widget->show(); + + QWidget grandParentWidget; + grandParentWidget.setObjectName(QStringLiteral("grandParentWidget")); + grandParentWidget.setPalette(Qt::blue); + QVBoxLayout grandParentLayout(&grandParentWidget); + + QWidget parentWidget(&grandParentWidget); + parentWidget.setObjectName(QStringLiteral("parentWidget")); + grandParentLayout.addWidget(&parentWidget); + parentWidget.setPalette(Qt::green); + parentWidget.setAutoFillBackground(true); + QVBoxLayout parentLayout(&parentWidget); + + grandParentWidget.setGeometry(0, 100, 200, 200); + grandParentWidget.show(); + + QVERIFY(QTest::qWaitForWindowExposed(widget)); + QVERIFY(QTest::qWaitForWindowExposed(&grandParentWidget)); + + QVERIFY(parentWidget.children().count() == 1); // The layout + + // Now both widgets should be created & shown, time to re-parent: + parentLayout.addWidget(widget); + + QVERIFY(QTest::qWaitForWindowExposed(&grandParentWidget)); + + QVERIFY(parentWidget.children().count() == 2); // Layout & glwidget + QVERIFY(parentWidget.children().contains(widget)); + QTRY_VERIFY(widget->height() > 30); + + delete widget; + + QVERIFY(QTest::qWaitForWindowExposed(&grandParentWidget)); + + QVERIFY(parentWidget.children().count() == 1); // The layout + + // Now do pretty much the same thing, but don't show the + // widget first: + widget = new GLWidget; + widget->setObjectName(QStringLiteral("glWidget2")); + parentLayout.addWidget(widget); + + QVERIFY(QTest::qWaitForWindowExposed(&grandParentWidget)); + + QVERIFY(parentWidget.children().count() == 2); // Layout & glwidget + QVERIFY(parentWidget.children().contains(widget)); + QVERIFY(widget->height() > 30); + + delete widget; +} + +class RenderPixmapWidget : public QGLWidget +{ +protected: + void initializeGL() { + // Set some gl state: + QOpenGLContext::currentContext()->functions()->glClearColor(1.0, 0.0, 0.0, 1.0); + } + + void paintGL() { + QOpenGLContext::currentContext()->functions()->glClear(GL_COLOR_BUFFER_BIT); + } +}; + +void tst_QGL::glWidgetRenderPixmap() +{ + RenderPixmapWidget *w = new RenderPixmapWidget; + + QSize pmSize = QSize(100, 100); + QPixmap pm = w->renderPixmap(pmSize.width(), pmSize.height(), false); + + delete w; + + QImage fb = pm.toImage().convertToFormat(QImage::Format_RGB32); + QImage reference(pmSize, QImage::Format_RGB32); + reference.fill(0xffff0000); + + QFUZZY_COMPARE_IMAGES(fb, reference); +} + +class ColormapExtended : public QGLColormap +{ +public: + ColormapExtended() {} + + Qt::HANDLE handle() { return QGLColormap::handle(); } + void setHandle(Qt::HANDLE handle) { QGLColormap::setHandle(handle); } +}; + +void tst_QGL::colormap() +{ + // Check the properties of the default empty colormap. + QGLColormap cmap1; + QVERIFY(cmap1.isEmpty()); + QCOMPARE(cmap1.size(), 0); + QCOMPARE(cmap1.entryRgb(0), QRgb(0)); + QCOMPARE(cmap1.entryRgb(-1), QRgb(0)); + QCOMPARE(cmap1.entryRgb(100), QRgb(0)); + QVERIFY(!cmap1.entryColor(0).isValid()); + QVERIFY(!cmap1.entryColor(-1).isValid()); + QVERIFY(!cmap1.entryColor(100).isValid()); + QCOMPARE(cmap1.find(qRgb(255, 0, 0)), -1); + QCOMPARE(cmap1.findNearest(qRgb(255, 0, 0)), -1); + + // Set an entry and re-test. + cmap1.setEntry(56, qRgb(255, 0, 0)); + // The colormap is still considered "empty" even though it + // has entries in it now. The isEmpty() method is used to + // detect when the colormap is in use by a GL widget, + // not to detect when it is empty! + QVERIFY(cmap1.isEmpty()); + QCOMPARE(cmap1.size(), 256); + QCOMPARE(cmap1.entryRgb(0), QRgb(0)); + QVERIFY(cmap1.entryColor(0) == QColor(0, 0, 0, 255)); + QVERIFY(cmap1.entryRgb(56) == qRgb(255, 0, 0)); + QVERIFY(cmap1.entryColor(56) == QColor(255, 0, 0, 255)); + QCOMPARE(cmap1.find(qRgb(255, 0, 0)), 56); + QCOMPARE(cmap1.findNearest(qRgb(255, 0, 0)), 56); + + // Set some more entries. + static QRgb const colors[] = { + qRgb(255, 0, 0), + qRgb(0, 255, 0), + qRgb(255, 255, 255), + qRgb(0, 0, 255), + qRgb(0, 0, 0) + }; + cmap1.setEntry(57, QColor(0, 255, 0)); + cmap1.setEntries(3, colors + 2, 58); + cmap1.setEntries(5, colors, 251); + int idx; + for (idx = 0; idx < 5; ++idx) { + QVERIFY(cmap1.entryRgb(56 + idx) == colors[idx]); + QVERIFY(cmap1.entryColor(56 + idx) == QColor(colors[idx])); + QVERIFY(cmap1.entryRgb(251 + idx) == colors[idx]); + QVERIFY(cmap1.entryColor(251 + idx) == QColor(colors[idx])); + } + QCOMPARE(cmap1.size(), 256); + + // Perform color lookups. + QCOMPARE(cmap1.find(qRgb(255, 0, 0)), 56); + QCOMPARE(cmap1.find(qRgb(0, 0, 0)), 60); // Actually finds 0, 0, 0, 255. + QCOMPARE(cmap1.find(qRgba(0, 0, 0, 0)), 0); + QCOMPARE(cmap1.find(qRgb(0, 255, 0)), 57); + QCOMPARE(cmap1.find(qRgb(255, 255, 255)), 58); + QCOMPARE(cmap1.find(qRgb(0, 0, 255)), 59); + QCOMPARE(cmap1.find(qRgb(140, 0, 0)), -1); + QCOMPARE(cmap1.find(qRgb(0, 140, 0)), -1); + QCOMPARE(cmap1.find(qRgb(0, 0, 140)), -1); + QCOMPARE(cmap1.find(qRgb(64, 0, 0)), -1); + QCOMPARE(cmap1.find(qRgb(0, 64, 0)), -1); + QCOMPARE(cmap1.find(qRgb(0, 0, 64)), -1); + QCOMPARE(cmap1.findNearest(qRgb(255, 0, 0)), 56); + QCOMPARE(cmap1.findNearest(qRgb(0, 0, 0)), 60); + QCOMPARE(cmap1.findNearest(qRgba(0, 0, 0, 0)), 0); + QCOMPARE(cmap1.findNearest(qRgb(0, 255, 0)), 57); + QCOMPARE(cmap1.findNearest(qRgb(255, 255, 255)), 58); + QCOMPARE(cmap1.findNearest(qRgb(0, 0, 255)), 59); + QCOMPARE(cmap1.findNearest(qRgb(140, 0, 0)), 56); + QCOMPARE(cmap1.findNearest(qRgb(0, 140, 0)), 57); + QCOMPARE(cmap1.findNearest(qRgb(0, 0, 140)), 59); + QCOMPARE(cmap1.findNearest(qRgb(64, 0, 0)), 0); + QCOMPARE(cmap1.findNearest(qRgb(0, 64, 0)), 0); + QCOMPARE(cmap1.findNearest(qRgb(0, 0, 64)), 0); + + // Make some copies of the colormap and check that they are the same. + QGLColormap cmap2(cmap1); + QGLColormap cmap3; + cmap3 = cmap1; + QVERIFY(cmap2.isEmpty()); + QVERIFY(cmap3.isEmpty()); + QCOMPARE(cmap2.size(), 256); + QCOMPARE(cmap3.size(), 256); + for (idx = 0; idx < 256; ++idx) { + QCOMPARE(cmap1.entryRgb(idx), cmap2.entryRgb(idx)); + QCOMPARE(cmap1.entryRgb(idx), cmap3.entryRgb(idx)); + } + + // Modify an entry in one of the copies and recheck the original. + cmap2.setEntry(45, qRgb(255, 0, 0)); + for (idx = 0; idx < 256; ++idx) { + if (idx != 45) + QCOMPARE(cmap1.entryRgb(idx), cmap2.entryRgb(idx)); + else + QCOMPARE(cmap2.entryRgb(45), qRgb(255, 0, 0)); + QCOMPARE(cmap1.entryRgb(idx), cmap3.entryRgb(idx)); + } + + // Check that setting the handle will cause isEmpty() to work right. + ColormapExtended cmap4; + cmap4.setEntry(56, qRgb(255, 0, 0)); + QVERIFY(cmap4.isEmpty()); + QCOMPARE(cmap4.size(), 256); + cmap4.setHandle(Qt::HANDLE(42)); + QCOMPARE(cmap4.handle(), Qt::HANDLE(42)); + QVERIFY(!cmap4.isEmpty()); + QCOMPARE(cmap4.size(), 256); +} + +#ifndef GL_TEXTURE_3D +#define GL_TEXTURE_3D 0x806F +#endif + +#ifndef GL_RGB16 +#define GL_RGB16 0x8054 +#endif + +void tst_QGL::fboFormat() +{ + // Check the initial conditions. + QGLFramebufferObjectFormat format1; + QCOMPARE(format1.samples(), 0); + QCOMPARE(format1.attachment(), QGLFramebufferObject::NoAttachment); + QCOMPARE(int(format1.textureTarget()), int(GL_TEXTURE_2D)); + int expectedFormat = +#ifdef QT_OPENGL_ES_2 + GL_RGBA; +#else + QOpenGLContext::openGLModuleType() != QOpenGLContext::LibGL ? GL_RGBA : GL_RGBA8; +#endif + QCOMPARE(int(format1.internalTextureFormat()), expectedFormat); + + // Modify the values and re-check. + format1.setSamples(8); + format1.setAttachment(QGLFramebufferObject::CombinedDepthStencil); + format1.setTextureTarget(GL_TEXTURE_3D); + format1.setInternalTextureFormat(GL_RGB16); + QCOMPARE(format1.samples(), 8); + QCOMPARE(format1.attachment(), QGLFramebufferObject::CombinedDepthStencil); + QCOMPARE(int(format1.textureTarget()), int(GL_TEXTURE_3D)); + QCOMPARE(int(format1.internalTextureFormat()), int(GL_RGB16)); + + // Make copies and check that they are the same. + QGLFramebufferObjectFormat format2(format1); + QGLFramebufferObjectFormat format3; + QCOMPARE(format2.samples(), 8); + QCOMPARE(format2.attachment(), QGLFramebufferObject::CombinedDepthStencil); + QCOMPARE(int(format2.textureTarget()), int(GL_TEXTURE_3D)); + QCOMPARE(int(format2.internalTextureFormat()), int(GL_RGB16)); + format3 = format1; + QCOMPARE(format3.samples(), 8); + QCOMPARE(format3.attachment(), QGLFramebufferObject::CombinedDepthStencil); + QCOMPARE(int(format3.textureTarget()), int(GL_TEXTURE_3D)); + QCOMPARE(int(format3.internalTextureFormat()), int(GL_RGB16)); + + // Modify the copies and check that the original is unchanged. + format2.setSamples(9); + format3.setTextureTarget(GL_TEXTURE_2D); + QCOMPARE(format1.samples(), 8); + QCOMPARE(format1.attachment(), QGLFramebufferObject::CombinedDepthStencil); + QCOMPARE(int(format1.textureTarget()), int(GL_TEXTURE_3D)); + QCOMPARE(int(format1.internalTextureFormat()), int(GL_RGB16)); + + // operator== and operator!= for QGLFramebufferObjectFormat. + QGLFramebufferObjectFormat format1c; + QGLFramebufferObjectFormat format2c; + + QCOMPARE(format1c, format2c); + QVERIFY(!(format1c != format2c)); + format1c.setSamples(8); + QVERIFY(!(format1c == format2c)); + QVERIFY(format1c != format2c); + format2c.setSamples(8); + QCOMPARE(format1c, format2c); + QVERIFY(!(format1c != format2c)); + + format1c.setAttachment(QGLFramebufferObject::CombinedDepthStencil); + QVERIFY(!(format1c == format2c)); + QVERIFY(format1c != format2c); + format2c.setAttachment(QGLFramebufferObject::CombinedDepthStencil); + QCOMPARE(format1c, format2c); + QVERIFY(!(format1c != format2c)); + + format1c.setTextureTarget(GL_TEXTURE_3D); + QVERIFY(!(format1c == format2c)); + QVERIFY(format1c != format2c); + format2c.setTextureTarget(GL_TEXTURE_3D); + QCOMPARE(format1c, format2c); + QVERIFY(!(format1c != format2c)); + + format1c.setInternalTextureFormat(GL_RGB16); + QVERIFY(!(format1c == format2c)); + QVERIFY(format1c != format2c); + format2c.setInternalTextureFormat(GL_RGB16); + QCOMPARE(format1c, format2c); + QVERIFY(!(format1c != format2c)); + + QGLFramebufferObjectFormat format3c(format1c); + QGLFramebufferObjectFormat format4c; + QCOMPARE(format1c, format3c); + QVERIFY(!(format1c != format3c)); + format3c.setInternalTextureFormat( +#ifdef QT_OPENGL_ES_2 + GL_RGBA +#else + QOpenGLContext::openGLModuleType() != QOpenGLContext::LibGL ? GL_RGBA : GL_RGBA8 +#endif + ); + QVERIFY(!(format1c == format3c)); + QVERIFY(format1c != format3c); + + format4c = format1c; + QCOMPARE(format1c, format4c); + QVERIFY(!(format1c != format4c)); + format4c.setInternalTextureFormat( +#ifdef QT_OPENGL_ES_2 + GL_RGBA +#else + QOpenGLContext::openGLModuleType() != QOpenGLContext::LibGL ? GL_RGBA : GL_RGBA8 +#endif + ); + QVERIFY(!(format1c == format4c)); + QVERIFY(format1c != format4c); +} + +void tst_QGL::testDontCrashOnDanglingResources() +{ + // We have a number of Q_GLOBAL_STATICS inside the Qt OpenGL + // module. This test is verify that we don't crash as a result of + // them calling into libgl on application shutdown. + QWidget *widget = new UnclippedWidget(); + widget->show(); + qApp->processEvents(); + widget->hide(); +} + +class ReplaceClippingGLWidget : public QGLWidget +{ +public: + void paint(QPainter *painter) + { + painter->fillRect(rect(), Qt::white); + + QPainterPath path; + path.addRect(0, 0, 100, 100); + path.addRect(50, 50, 100, 100); + + painter->setClipRect(0, 0, 150, 150); + painter->fillPath(path, Qt::red); + + painter->translate(150, 150); + painter->setClipRect(0, 0, 150, 150); + painter->fillPath(path, Qt::red); + } + +protected: + void paintEvent(QPaintEvent*) + { + // clear the stencil with junk + QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions(); + funcs->glStencilMask(0xFFFF); + funcs->glClearStencil(0xFFFF); + funcs->glDisable(GL_STENCIL_TEST); + funcs->glDisable(GL_SCISSOR_TEST); + funcs->glClear(GL_STENCIL_BUFFER_BIT); + + QPainter painter(this); + paint(&painter); + } +}; + +void tst_QGL::replaceClipping() +{ + ReplaceClippingGLWidget glw; + glw.resize(300, 300); + glw.show(); + + QVERIFY(QTest::qWaitForWindowExposed(&glw)); + + QImage reference(300, 300, QImage::Format_RGB32); + QPainter referencePainter(&reference); + glw.paint(&referencePainter); + referencePainter.end(); + +#if defined(Q_OS_QNX) + // glReadPixels reads from the back buffer. On QNX the buffer is not preserved + // after a buffer swap. This is why we have to swap the buffer explicitly before calling + // grabFrameBuffer to retrieve the content of the front buffer + glw.swapBuffers(); +#endif + const QImage widgetFB = glw.grabFrameBuffer(false).convertToFormat(QImage::Format_RGB32); + + // Sample pixels in a grid pattern which avoids false failures due to + // off-by-one pixel errors on some buggy GL implementations + for (int x = 25; x < reference.width(); x += 50) { + for (int y = 25; y < reference.width(); y += 50) { + QFUZZY_COMPARE_PIXELS(widgetFB.pixel(x, y), reference.pixel(x, y)); + } + } +} + +class ClipTestGLWidget : public QGLWidget +{ +public: + void paint(QPainter *painter) + { + painter->fillRect(-1, -1, width()+2, height()+2, Qt::white); + painter->setClipRect(10, 10, width()-20, height()-20); + painter->fillRect(rect(), Qt::cyan); + + painter->save(); + painter->setClipRect(10, 10, 100, 100, Qt::IntersectClip); + + painter->fillRect(rect(), Qt::blue); + + painter->save(); + painter->setClipRect(10, 10, 50, 50, Qt::IntersectClip); + painter->fillRect(rect(), Qt::red); + painter->restore(); + painter->fillRect(0, 0, 40, 40, Qt::white); + painter->save(); + + painter->setClipRect(0, 0, 35, 35, Qt::IntersectClip); + painter->fillRect(rect(), Qt::black); + painter->restore(); + + painter->fillRect(0, 0, 30, 30, Qt::magenta); + + painter->save(); + painter->setClipRect(60, 10, 50, 50, Qt::ReplaceClip); + painter->fillRect(rect(), Qt::green); + painter->restore(); + + painter->restore(); + + painter->translate(100, 100); + + { + QPainterPath path; + path.addRect(10, 10, 100, 100); + path.addRect(10, 10, 10, 10); + painter->setClipPath(path, Qt::IntersectClip); + } + + painter->fillRect(rect(), Qt::blue); + + painter->save(); + { + QPainterPath path; + path.addRect(10, 10, 50, 50); + path.addRect(10, 10, 10, 10); + painter->setClipPath(path, Qt::IntersectClip); + } + painter->fillRect(rect(), Qt::red); + painter->restore(); + painter->fillRect(0, 0, 40, 40, Qt::white); + painter->save(); + + { + QPainterPath path; + path.addRect(0, 0, 35, 35); + path.addRect(10, 10, 10, 10); + painter->setClipPath(path, Qt::IntersectClip); + } + painter->fillRect(rect(), Qt::black); + painter->restore(); + + painter->fillRect(0, 0, 30, 30, Qt::magenta); + + painter->save(); + { + QPainterPath path; + path.addRect(60, 10, 50, 50); + path.addRect(10, 10, 10, 10); + painter->setClipPath(path, Qt::ReplaceClip); + } + painter->fillRect(rect(), Qt::green); + painter->restore(); + } + +protected: + void paintEvent(QPaintEvent*) + { + QPainter painter(this); + paint(&painter); + } +}; + +void tst_QGL::clipTest() +{ + ClipTestGLWidget glw; + glw.resize(220, 220); + glw.showNormal(); + + QVERIFY(QTest::qWaitForWindowExposed(&glw)); + + QImage reference(glw.size(), QImage::Format_RGB32); + QPainter referencePainter(&reference); + glw.paint(&referencePainter); + referencePainter.end(); + +#if defined(Q_OS_QNX) + // glReadPixels reads from the back buffer. On QNX the buffer is not preserved + // after a buffer swap. This is why we have to swap the buffer explicitly before calling + // grabFrameBuffer to retrieve the content of the front buffer + glw.swapBuffers(); +#endif + const QImage widgetFB = glw.grabFrameBuffer(false).convertToFormat(QImage::Format_RGB32); + + // Sample pixels in a grid pattern which avoids false failures due to + // off-by-one pixel errors on some buggy GL implementations + for (int x = 2; x < reference.width(); x += 5) { + for (int y = 2; y < reference.height(); y += 5) { + QFUZZY_COMPARE_PIXELS(widgetFB.pixel(x, y), reference.pixel(x, y)); + } + } +} + +void tst_QGL::destroyFBOAfterContext() +{ + if (!QGLFramebufferObject::hasOpenGLFramebufferObjects()) + QSKIP("QGLFramebufferObject not supported on this platform"); + + QGLWidget *glw = new QGLWidget(); + glw->makeCurrent(); + + // No multisample with combined depth/stencil attachment: + QGLFramebufferObjectFormat fboFormat; + fboFormat.setAttachment(QGLFramebufferObject::CombinedDepthStencil); + + // Don't complicate things by using NPOT: + QGLFramebufferObject *fbo = new QGLFramebufferObject(256, 128, fboFormat); + + // The handle should be valid until the context is destroyed. + QVERIFY(fbo->handle() != 0); + QVERIFY(fbo->isValid()); + + delete glw; + + // The handle should now be zero. + QVERIFY(!fbo->handle()); + QVERIFY(!fbo->isValid()); + + delete fbo; +} + +#ifdef QT_BUILD_INTERNAL + +class tst_QGLResource +{ +public: + tst_QGLResource(const QGLContext * = 0) {} + ~tst_QGLResource() { ++deletions; } + + static int deletions; +}; + +int tst_QGLResource::deletions = 0; + +#ifdef TODO +Q_GLOBAL_STATIC(QOpenGLContextGroupResource<tst_QGLResource>, qt_shared_test) +#endif //TODO +#endif // QT_BUILD_INTERNAL + +#ifdef QT_BUILD_INTERNAL +void tst_QGL::shareRegister() +{ +#ifdef TODO + // Create a context. + QGLWidget *glw1 = new QGLWidget(); + glw1->makeCurrent(); + + // Nothing should be sharing with glw1's context yet. + QVERIFY(!glw1->isSharing()); + + // Create a guard for the first context. + QOpenGLSharedResourceGuard guard(glw1->context()->contextHandle()); + QCOMPARE(guard.id(), 0); + guard.setId(3); + QCOMPARE(guard.id(), 3); + + // Request a tst_QGLResource object for the first context. + tst_QGLResource *res1 = qt_shared_test()->value(glw1->context()->contextHandle()); + QVERIFY(res1); + QCOMPARE(qt_shared_test()->value(glw1->context()->contextHandle()), res1); + + // Create another context that shares with the first. + QVERIFY(!glw1->isSharing()); + QGLWidget *glw2 = new QGLWidget(0, glw1); + if (!glw2->isSharing()) { + delete glw2; + delete glw1; + QSKIP("Context sharing is not supported"); + } + QVERIFY(glw1->isSharing()); + QVERIFY(glw1->context() != glw2->context()); + + // Check that the first context's resource is also on the second. + QCOMPARE(qt_shared_test()->value(glw1->context()), res1); + QCOMPARE(qt_shared_test()->value(glw2->context()), res1); + + // Guard should still be the same. + QCOMPARE(guard.context(), glw1->context()); + QCOMPARE(guard.id(), 3); + + // Check the sharing relationships. + QVERIFY(QGLContext::areSharing(glw1->context(), glw1->context())); + QVERIFY(QGLContext::areSharing(glw2->context(), glw2->context())); + QVERIFY(QGLContext::areSharing(glw1->context(), glw2->context())); + QVERIFY(QGLContext::areSharing(glw2->context(), glw1->context())); + QVERIFY(!QGLContext::areSharing(0, glw2->context())); + QVERIFY(!QGLContext::areSharing(glw1->context(), 0)); + QVERIFY(!QGLContext::areSharing(0, 0)); + + // Create a third context, not sharing with the others. + QGLWidget *glw3 = new QGLWidget(); + QVERIFY(!glw3->isSharing()); + + // Create a guard on the standalone context. + QGLSharedResourceGuard guard3(glw3->context()); + guard3.setId(5); + + // Request a resource to the third context. + tst_QGLResource *res3 = qt_shared_test()->value(glw3->context()); + QVERIFY(res3); + QCOMPARE(qt_shared_test()->value(glw1->context()), res1); + QCOMPARE(qt_shared_test()->value(glw2->context()), res1); + QCOMPARE(qt_shared_test()->value(glw3->context()), res3); + + // Check the sharing relationships again. + QVERIFY(QGLContext::areSharing(glw1->context(), glw1->context())); + QVERIFY(QGLContext::areSharing(glw2->context(), glw2->context())); + QVERIFY(QGLContext::areSharing(glw1->context(), glw2->context())); + QVERIFY(QGLContext::areSharing(glw2->context(), glw1->context())); + QVERIFY(!QGLContext::areSharing(glw1->context(), glw3->context())); + QVERIFY(!QGLContext::areSharing(glw2->context(), glw3->context())); + QVERIFY(!QGLContext::areSharing(glw3->context(), glw1->context())); + QVERIFY(!QGLContext::areSharing(glw3->context(), glw2->context())); + QVERIFY(QGLContext::areSharing(glw3->context(), glw3->context())); + QVERIFY(!QGLContext::areSharing(0, glw2->context())); + QVERIFY(!QGLContext::areSharing(glw1->context(), 0)); + QVERIFY(!QGLContext::areSharing(0, glw3->context())); + QVERIFY(!QGLContext::areSharing(glw3->context(), 0)); + QVERIFY(!QGLContext::areSharing(0, 0)); + + // Shared guard should still be the same. + QCOMPARE(guard.context(), glw1->context()); + QCOMPARE(guard.id(), 3); + + // Delete the first context. + delete glw1; + + // The second context should no longer register as sharing. + QVERIFY(!glw2->isSharing()); + + // The first context's resource should transfer to the second context. + QCOMPARE(tst_QGLResource::deletions, 0); + QCOMPARE(qt_shared_test()->value(glw2->context()), res1); + QCOMPARE(qt_shared_test()->value(glw3->context()), res3); + + // Shared guard should now be the second context, with the id the same. + QCOMPARE(guard.context(), glw2->context()); + QCOMPARE(guard.id(), 3); + QCOMPARE(guard3.context(), glw3->context()); + QCOMPARE(guard3.id(), 5); + + // Clean up and check that the resources are properly deleted. + delete glw2; + QCOMPARE(tst_QGLResource::deletions, 1); + delete glw3; + QCOMPARE(tst_QGLResource::deletions, 2); + + // Guards should now be null and the id zero. + QVERIFY(guard.context() == 0); + QVERIFY(guard.id() == 0); + QVERIFY(guard3.context() == 0); + QVERIFY(guard3.id() == 0); +#endif //TODO +} +#endif + +// Tests QGLContext::bindTexture with default options +#ifdef QT_BUILD_INTERNAL +void tst_QGL::qglContextDefaultBindTexture() +{ + QGLWidget w; + w.makeCurrent(); + QGLContext *ctx = const_cast<QGLContext*>(w.context()); + + QImage *boundImage = new QImage(256, 256, QImage::Format_RGB32); + boundImage->fill(0xFFFFFFFF); + QPixmap *boundPixmap = new QPixmap(256, 256); + boundPixmap->fill(Qt::red); + + int startCacheItemCount = QGLTextureCache::instance()->size(); + + GLuint boundImageTextureId = ctx->bindTexture(*boundImage); + GLuint boundPixmapTextureId = ctx->bindTexture(*boundPixmap); + + // Make sure the image & pixmap have been added to the cache: + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+2); + + // Make sure the image & pixmap have the is_cached flag set: + QVERIFY(QImagePixmapCleanupHooks::isImageCached(*boundImage)); + QVERIFY(QImagePixmapCleanupHooks::isPixmapCached(*boundPixmap)); + + QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions(); + // Make sure the texture IDs returned are valid: + QCOMPARE(funcs->glIsTexture(boundImageTextureId), GLboolean(GL_TRUE)); + QCOMPARE(funcs->glIsTexture(boundPixmapTextureId), GLboolean(GL_TRUE)); + + // Make sure the textures are still valid after we delete the image/pixmap: + // Also check that although the textures are left intact, the cache entries are removed: + delete boundImage; + boundImage = 0; + QCOMPARE(funcs->glIsTexture(boundImageTextureId), GLboolean(GL_TRUE)); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+1); + delete boundPixmap; + boundPixmap = 0; + QCOMPARE(funcs->glIsTexture(boundPixmapTextureId), GLboolean(GL_TRUE)); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount); + + // Finally, make sure QGLContext::deleteTexture deletes the texture IDs: + ctx->deleteTexture(boundImageTextureId); + ctx->deleteTexture(boundPixmapTextureId); + QCOMPARE(funcs->glIsTexture(boundImageTextureId), GLboolean(GL_FALSE)); + QCOMPARE(funcs->glIsTexture(boundPixmapTextureId), GLboolean(GL_FALSE)); +} +#endif + +#ifdef QT_BUILD_INTERNAL +void tst_QGL::textureCleanup() +{ + QGLWidget w; + w.resize(200,200); + w.show(); + QVERIFY(QTest::qWaitForWindowExposed(&w)); + w.makeCurrent(); + + // Test pixmaps which have been loaded via QPixmapCache are removed from the texture cache + // when the pixmap cache is cleared + { + int startCacheItemCount = QGLTextureCache::instance()->size(); + QPainter p(&w); + + QPixmap boundPixmap(":designer.png"); + + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount); + + p.drawPixmap(0, 0, boundPixmap); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+1); + + // Need to call end for the GL2 paint engine to release references to pixmap if using tfp + p.end(); + + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+1); + + // Check that the texture doesn't get removed from the cache when the pixmap is cleared + // as it should still be in the cache: + boundPixmap = QPixmap(); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+1); + + QPixmapCache::clear(); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount); + } + + // Test pixmaps which have been loaded via QPixmapCache are removed from the texture cache + // when they are explicitly removed from the pixmap cache + { + int startCacheItemCount = QGLTextureCache::instance()->size(); + QPainter p(&w); + + QPixmap boundPixmap(128, 128); + QString cacheKey = QString::fromLatin1("myPixmap"); + QPixmapCache::insert(cacheKey, boundPixmap); + + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount); + + p.drawPixmap(0, 0, boundPixmap); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+1); + + // Need to call end for the GL2 paint engine to release references to pixmap if using tfp + p.end(); + + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+1); + + // Check that the texture doesn't get removed from the cache when the pixmap is cleared + // as it should still be in the cache: + boundPixmap = QPixmap(); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+1); + + // Finally, we check that the texture cache entry is removed when we remove the + // pixmap cache entry, which should hold the last reference: + QPixmapCache::remove(cacheKey); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount); + } + + // Check images & pixmaps are removed from the cache when they are deleted + { + int startCacheItemCount = QGLTextureCache::instance()->size(); + QPainter p(&w); + + QImage *boundImage = new QImage(256, 256, QImage::Format_RGB32); + boundImage->fill(0xFFFFFFFF); + QPixmap *boundPixmap = new QPixmap(256, 256); + boundPixmap->fill(Qt::red); + + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount); + + p.drawImage(0, 0, *boundImage); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+1); + + p.drawPixmap(0, 0, *boundPixmap); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+2); + + // Need to call end for the GL2 paint engine to release references to pixmap if using tfp + p.end(); + + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+2); + + delete boundImage; + boundImage = 0; + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+1); + + delete boundPixmap; + boundPixmap = 0; + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount); + } + + // Check images & pixmaps are removed from the cache when they are assigned to + { + int startCacheItemCount = QGLTextureCache::instance()->size(); + QPainter p(&w); + + QImage boundImage(256, 256, QImage::Format_RGB32); + boundImage.fill(0xFFFFFFFF); + QPixmap boundPixmap(256, 256); + boundPixmap.fill(Qt::red); + + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount); + + p.drawImage(0, 0, boundImage); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+1); + + p.drawPixmap(0, 0, boundPixmap); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+2); + + // Need to call end for the GL2 paint engine to release references to pixmap if using tfp + p.end(); + + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+2); + + boundImage = QImage(64, 64, QImage::Format_RGB32); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+1); + + boundPixmap = QPixmap(64, 64); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount); + } + + // Check images & pixmaps are removed from the cache when they are modified (detached) + { + int startCacheItemCount = QGLTextureCache::instance()->size(); + QPainter p(&w); + + QImage boundImage(256, 256, QImage::Format_RGB32); + boundImage.fill(0xFFFFFFFF); + QPixmap boundPixmap(256, 256); + boundPixmap.fill(Qt::red); + + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount); + + p.drawImage(0, 0, boundImage); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+1); + + p.drawPixmap(0, 0, boundPixmap); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+2); + + // Need to call end for the GL2 paint engine to release references to pixmap if using tfp + p.end(); + + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+2); + + boundImage.fill(0x00000000); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+1); + + boundPixmap.fill(Qt::blue); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount); + } + + // Check that images/pixmaps aren't removed from the cache if a shallow copy has been made + QImage copyOfImage; + QPixmap copyOfPixmap; + int startCacheItemCount = QGLTextureCache::instance()->size(); + { + QPainter p(&w); + + QImage boundImage(256, 256, QImage::Format_RGB32); + boundImage.fill(0xFFFFFFFF); + QPixmap boundPixmap(256, 256); + boundPixmap.fill(Qt::red); + + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount); + + p.drawImage(0, 0, boundImage); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+1); + + p.drawPixmap(0, 0, boundPixmap); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+2); + + // Need to call end for the GL2 paint engine to release references to pixmap if using tfp + p.end(); + + copyOfImage = boundImage; + copyOfPixmap = boundPixmap; + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+2); + } // boundImage & boundPixmap would have been deleted when they went out of scope + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+2); + + copyOfImage = QImage(); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount+1); + + copyOfPixmap = QPixmap(); + QCOMPARE(QGLTextureCache::instance()->size(), startCacheItemCount); +} +#endif + +namespace ThreadImages { + +class Producer : public QObject +{ + Q_OBJECT +public: + Producer() + { + startTimer(20); + + QThread *thread = new QThread; + thread->start(); + + connect(this, SIGNAL(destroyed()), thread, SLOT(quit())); + + moveToThread(thread); + connect(thread, SIGNAL(finished()), thread, SLOT(deleteLater())); + } + +signals: + void imageReady(const QImage &image); + +protected: + void timerEvent(QTimerEvent *) + { + QImage image(256, 256, QImage::Format_RGB32); + QLinearGradient g(0, 0, 0, 256); + g.setColorAt(0, QColor(255, 180, 180)); + g.setColorAt(1, Qt::white); + g.setSpread(QGradient::ReflectSpread); + + QBrush brush(g); + brush.setTransform(QTransform::fromTranslate(0, delta)); + delta += 10; + + QPainter p(&image); + p.fillRect(image.rect(), brush); + + if (images.size() > 10) + images.removeFirst(); + + images.append(image); + + emit imageReady(image); + } + +private: + QList<QImage> images; + int delta; +}; + + +class DisplayWidget : public QGLWidget +{ + Q_OBJECT +public: + DisplayWidget(QWidget *parent) : QGLWidget(parent) {} + void paintEvent(QPaintEvent *) + { + QPainter p(this); + p.drawImage(rect(), m_image); + } + +public slots: + void setImage(const QImage &image) + { + m_image = image; + update(); + } + +private: + QImage m_image; +}; + +class Widget : public QWidget +{ + Q_OBJECT +public: + Widget() + : iterations(0) + , display(0) + , producer(new Producer) + { + startTimer(400); + connect(this, SIGNAL(destroyed()), producer, SLOT(deleteLater())); + } + + int iterations; + +protected: + void timerEvent(QTimerEvent *) + { + ++iterations; + + delete display; + display = new DisplayWidget(this); + connect(producer, SIGNAL(imageReady(QImage)), display, SLOT(setImage(QImage))); + + display->setGeometry(rect()); + display->show(); + } + +private: + DisplayWidget *display; + Producer *producer; +}; + +} + +void tst_QGL::threadImages() +{ + ThreadImages::Widget *widget = new ThreadImages::Widget; + widget->show(); + + while (widget->iterations <= 5) { + qApp->processEvents(); + } + + delete widget; +} + +void tst_QGL::nullRectCrash() +{ + if (!QGLFramebufferObject::hasOpenGLFramebufferObjects()) + QSKIP("QGLFramebufferObject not supported on this platform"); + + QGLWidget glw; + glw.makeCurrent(); + + QGLFramebufferObjectFormat fboFormat; + fboFormat.setAttachment(QGLFramebufferObject::CombinedDepthStencil); + + QGLFramebufferObject *fbo = new QGLFramebufferObject(128, 128, fboFormat); + + QPainter fboPainter(fbo); + + fboPainter.setPen(QPen(QColor(255, 127, 127, 127), 2)); + fboPainter.setBrush(QColor(127, 255, 127, 127)); + fboPainter.drawRect(QRectF()); + + fboPainter.end(); +} + +void tst_QGL::extensions() +{ + QGLWidget glw; + glw.makeCurrent(); + + QOpenGLContext *ctx = QOpenGLContext::currentContext(); + QVERIFY(ctx); + QOpenGLFunctions *funcs = ctx->functions(); + QVERIFY(funcs); + QSurfaceFormat format = ctx->format(); + +#ifdef QT_BUILD_INTERNAL + QOpenGLExtensions *exts = static_cast<QOpenGLExtensions *>(funcs); + QOpenGLExtensions::OpenGLExtensions allExts = exts->openGLExtensions(); + // Mipmapping is always available in GL2/GLES2+. Verify this. + if (format.majorVersion() >= 2) + QVERIFY(allExts.testFlag(QOpenGLExtensions::GenerateMipmap)); +#endif + + // Now look for some features should always be available in a given version. + QOpenGLFunctions::OpenGLFeatures allFeatures = funcs->openGLFeatures(); + QVERIFY(allFeatures.testFlag(QOpenGLFunctions::Multitexture)); + if (format.majorVersion() >= 2) { + QVERIFY(allFeatures.testFlag(QOpenGLFunctions::Shaders)); + QVERIFY(allFeatures.testFlag(QOpenGLFunctions::Buffers)); + QVERIFY(allFeatures.testFlag(QOpenGLFunctions::Multisample)); + QVERIFY(!ctx->isOpenGLES() || allFeatures.testFlag(QOpenGLFunctions::Framebuffers)); + QVERIFY(allFeatures.testFlag(QOpenGLFunctions::NPOTTextures) + && allFeatures.testFlag(QOpenGLFunctions::NPOTTextureRepeat)); + if (ctx->isOpenGLES()) { + QVERIFY(!allFeatures.testFlag(QOpenGLFunctions::FixedFunctionPipeline)); + QVERIFY(allFeatures.testFlag(QOpenGLFunctions::Framebuffers)); + } + } + if (format.majorVersion() >= 3) + QVERIFY(allFeatures.testFlag(QOpenGLFunctions::Framebuffers)); +} + +QTEST_MAIN(tst_QGL) +#include "tst_qgl.moc" |