diff options
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/opengl/contextinfo/contextinfo.pro | 9 | ||||
| -rw-r--r-- | examples/opengl/contextinfo/main.cpp | 53 | ||||
| -rw-r--r-- | examples/opengl/contextinfo/renderwindow.cpp | 218 | ||||
| -rw-r--r-- | examples/opengl/contextinfo/renderwindow.h | 82 | ||||
| -rw-r--r-- | examples/opengl/contextinfo/widget.cpp | 357 | ||||
| -rw-r--r-- | examples/opengl/contextinfo/widget.h | 79 | ||||
| -rw-r--r-- | examples/opengl/opengl.pro | 3 |
7 files changed, 800 insertions, 1 deletions
diff --git a/examples/opengl/contextinfo/contextinfo.pro b/examples/opengl/contextinfo/contextinfo.pro new file mode 100644 index 0000000000..ddaa084f38 --- /dev/null +++ b/examples/opengl/contextinfo/contextinfo.pro @@ -0,0 +1,9 @@ +TEMPLATE = app +QT += widgets + +SOURCES += main.cpp \ + widget.cpp \ + renderwindow.cpp + +HEADERS += widget.h \ + renderwindow.h diff --git a/examples/opengl/contextinfo/main.cpp b/examples/opengl/contextinfo/main.cpp new file mode 100644 index 0000000000..bc6363b31a --- /dev/null +++ b/examples/opengl/contextinfo/main.cpp @@ -0,0 +1,53 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names +** of its contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QApplication> +#include "widget.h" + +int main(int argc, char **argv) +{ + QApplication app(argc, argv); + + Widget w; + w.resize(700, 800); + w.show(); + + return app.exec(); +} diff --git a/examples/opengl/contextinfo/renderwindow.cpp b/examples/opengl/contextinfo/renderwindow.cpp new file mode 100644 index 0000000000..ab8e89fab8 --- /dev/null +++ b/examples/opengl/contextinfo/renderwindow.cpp @@ -0,0 +1,218 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names +** of its contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "renderwindow.h" +#include <QTimer> +#include <QMatrix4x4> +#include <QOpenGLContext> +#include <QOpenGLShaderProgram> + +RenderWindow::RenderWindow(const QSurfaceFormat &format) + : m_context(0), + m_initialized(false), + m_forceGLSL110(false), + m_angle(0.0f) +{ + setSurfaceType(QWindow::OpenGLSurface); + setFormat(format); + m_context = new QOpenGLContext(this); + m_context->setFormat(requestedFormat()); + if (!m_context->create()) { + delete m_context; + m_context = 0; + } +} + +void RenderWindow::exposeEvent(QExposeEvent *) +{ + if (isExposed()) + render(); +} + +// ES needs the precision qualifiers. +// On desktop GL QOpenGLShaderProgram inserts dummy defines for highp/mediump/lowp. +static const char *vertexShaderSource110 = + "attribute highp vec4 posAttr;\n" + "attribute lowp vec4 colAttr;\n" + "varying lowp vec4 col;\n" + "uniform highp mat4 matrix;\n" + "void main() {\n" + " col = colAttr;\n" + " gl_Position = matrix * posAttr;\n" + "}\n"; + +static const char *fragmentShaderSource110 = + "varying lowp vec4 col;\n" + "void main() {\n" + " gl_FragColor = col;\n" + "}\n"; + +static const char *vertexShaderSource = + "#version 150\n" + "in vec4 posAttr;\n" + "in vec4 colAttr;\n" + "out vec4 col;\n" + "uniform mat4 matrix;\n" + "void main() {\n" + " col = colAttr;\n" + " gl_Position = matrix * posAttr;\n" + "}\n"; + +static const char *fragmentShaderSource = + "#version 150\n" + "in vec4 col;\n" + "out vec4 fragColor;\n" + "void main() {\n" + " fragColor = col;\n" + "}\n"; + +static GLfloat vertices[] = { + 0.0f, 0.707f, + -0.5f, -0.5f, + 0.5f, -0.5f +}; + +static GLfloat colors[] = { + 1.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 1.0f +}; + +void RenderWindow::init() +{ + m_program = new QOpenGLShaderProgram(this); + + QSurfaceFormat format = m_context->format(); + bool useNewStyleShader = format.profile() == QSurfaceFormat::CoreProfile; + // Try to handle 3.0 & 3.1 that do not have the core/compatibility profile concept 3.2+ has. + // This may still fail since version 150 (3.2) is specified in the sources but it's worth a try. + if (format.renderableType() == QSurfaceFormat::OpenGL && format.majorVersion() == 3 && format.minorVersion() <= 1) + useNewStyleShader = !format.testOption(QSurfaceFormat::DeprecatedFunctions); + if (m_forceGLSL110) + useNewStyleShader = false; + + const char *vsrc = useNewStyleShader ? vertexShaderSource : vertexShaderSource110; + const char *fsrc = useNewStyleShader ? fragmentShaderSource : fragmentShaderSource110; + qDebug("Using version %s shader", useNewStyleShader ? "150" : "110"); + + if (!m_program->addShaderFromSourceCode(QOpenGLShader::Vertex, vsrc)) { + emit error(m_program->log()); + return; + } + if (!m_program->addShaderFromSourceCode(QOpenGLShader::Fragment, fsrc)) { + emit error(m_program->log()); + return; + } + if (!m_program->link()) { + emit error(m_program->log()); + return; + } + + m_posAttr = m_program->attributeLocation("posAttr"); + m_colAttr = m_program->attributeLocation("colAttr"); + m_matrixUniform = m_program->uniformLocation("matrix"); + + m_vbo.create(); + m_vbo.bind(); + m_vbo.allocate(vertices, sizeof(vertices) + sizeof(colors)); + m_vbo.write(sizeof(vertices), colors, sizeof(colors)); + m_vbo.release(); + + QOpenGLVertexArrayObject::Binder vaoBinder(&m_vao); + if (m_vao.isCreated()) // have VAO support, use it + setupVertexAttribs(); +} + +void RenderWindow::setupVertexAttribs() +{ + m_vbo.bind(); + m_program->setAttributeBuffer(m_posAttr, GL_FLOAT, 0, 2); + m_program->setAttributeBuffer(m_colAttr, GL_FLOAT, sizeof(vertices), 3); + m_program->enableAttributeArray(m_posAttr); + m_program->enableAttributeArray(m_colAttr); + m_vbo.release(); +} + +void RenderWindow::render() +{ + if (!m_context->makeCurrent(this)) { + qWarning("makeCurrent() failed"); + return; + } + + if (!m_initialized) { + m_initialized = true; + glEnable(GL_DEPTH_TEST); + glClearColor(0, 0, 0, 1); + init(); + emit ready(); + } + + if (!m_vbo.isCreated()) // init() failed, don't bother with trying to render + return; + + const qreal retinaScale = devicePixelRatio(); + glViewport(0, 0, width() * retinaScale, height() * retinaScale); + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + m_program->bind(); + QMatrix4x4 matrix; + matrix.perspective(60.0f, 4.0f / 3.0f, 0.1f, 100.0f); + matrix.translate(0.0f, 0.0f, -2.0f); + matrix.rotate(m_angle, 0.0f, 1.0f, 0.0f); + m_program->setUniformValue(m_matrixUniform, matrix); + + if (m_vao.isCreated()) + m_vao.bind(); + else // no VAO support, set the vertex attribute arrays now + setupVertexAttribs(); + + glDrawArrays(GL_TRIANGLES, 0, 3); + + m_vao.release(); + m_program->release(); + + // swapInterval is 1 by default which means that swapBuffers() will (hopefully) block + // and wait for vsync. + m_context->swapBuffers(this); + + m_angle += 1.0f; + QTimer::singleShot(0, this, SLOT(render())); +} diff --git a/examples/opengl/contextinfo/renderwindow.h b/examples/opengl/contextinfo/renderwindow.h new file mode 100644 index 0000000000..36b15fd22b --- /dev/null +++ b/examples/opengl/contextinfo/renderwindow.h @@ -0,0 +1,82 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names +** of its contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef RENDERWINDOW_H +#define RENDERWINDOW_H + +#include <QWindow> +#include <QOpenGLVertexArrayObject> +#include <QOpenGLBuffer> + +QT_FORWARD_DECLARE_CLASS(QOpenGLContext) +QT_FORWARD_DECLARE_CLASS(QOpenGLShaderProgram) + +class RenderWindow : public QWindow +{ + Q_OBJECT + +public: + RenderWindow(const QSurfaceFormat &format); + QOpenGLContext *context() { return m_context; } + void exposeEvent(QExposeEvent *) Q_DECL_OVERRIDE; + void setForceGLSL110(bool enable) { m_forceGLSL110 = enable; } + +signals: + void ready(); + void error(const QString &msg); + +private slots: + void render(); + +private: + void init(); + void setupVertexAttribs(); + + QOpenGLContext *m_context; + bool m_initialized; + bool m_forceGLSL110; + QOpenGLShaderProgram *m_program; + int m_posAttr, m_colAttr, m_matrixUniform; + QOpenGLVertexArrayObject m_vao; + QOpenGLBuffer m_vbo; + float m_angle; +}; + +#endif // RENDERWINDOW_H diff --git a/examples/opengl/contextinfo/widget.cpp b/examples/opengl/contextinfo/widget.cpp new file mode 100644 index 0000000000..13cec3b3f8 --- /dev/null +++ b/examples/opengl/contextinfo/widget.cpp @@ -0,0 +1,357 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names +** of its contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "widget.h" +#include "renderwindow.h" +#include <QVBoxLayout> +#include <QComboBox> +#include <QGroupBox> +#include <QRadioButton> +#include <QCheckBox> +#include <QHBoxLayout> +#include <QLabel> +#include <QPushButton> +#include <QTextEdit> +#include <QSplitter> +#include <QSurfaceFormat> +#include <QOpenGLContext> +#include <QOpenGLFunctions> +#include <QDebug> + +struct Version { + const char *str; + int major; + int minor; +}; + +static struct Version versions[] = { + { "1.0", 1, 0 }, + { "1.1", 1, 1 }, + { "1.2", 1, 2 }, + { "1.3", 1, 3 }, + { "1.4", 1, 4 }, + { "1.5", 1, 5 }, + { "2.0", 2, 0 }, + { "2.1", 2, 1 }, + { "3.0", 3, 0 }, + { "3.1", 3, 1 }, + { "3.2", 3, 2 }, + { "3.3", 3, 3 }, + { "4.0", 4, 0 }, + { "4.1", 4, 1 }, + { "4.2", 4, 2 }, + { "4.3", 4, 3 }, + { "4.4", 4, 4 } +}; + +struct Profile { + const char *str; + QSurfaceFormat::OpenGLContextProfile profile; +}; + +static struct Profile profiles[] = { + { "none", QSurfaceFormat::NoProfile }, + { "core", QSurfaceFormat::CoreProfile }, + { "compatibility", QSurfaceFormat::CompatibilityProfile } +}; + +struct Option { + const char *str; + QSurfaceFormat::FormatOption option; +}; + +static struct Option options[] = { + { "deprecated functions (not forward compatible)", QSurfaceFormat::DeprecatedFunctions }, + { "debug context", QSurfaceFormat::DebugContext }, + { "stereo buffers", QSurfaceFormat::StereoBuffers }, + // This is not a QSurfaceFormat option but is helpful to determine if the driver + // allows compiling old-style shaders with core profile. + { "force version 110 shaders", QSurfaceFormat::FormatOption(0) } +}; + +struct Renderable { + const char *str; + QSurfaceFormat::RenderableType renderable; +}; + +static struct Renderable renderables[] = { + { "default", QSurfaceFormat::DefaultRenderableType }, + { "OpenGL", QSurfaceFormat::OpenGL }, + { "OpenGL ES", QSurfaceFormat::OpenGLES } +}; + +void Widget::addVersions(QLayout *layout) +{ + QHBoxLayout *hbox = new QHBoxLayout; + hbox->setSpacing(20); + QLabel *label = new QLabel(tr("Context &version: ")); + hbox->addWidget(label); + m_version = new QComboBox; + m_version->setMinimumWidth(60); + label->setBuddy(m_version); + hbox->addWidget(m_version); + for (size_t i = 0; i < sizeof(versions) / sizeof(Version); ++i) { + m_version->addItem(QString::fromLatin1(versions[i].str)); + if (versions[i].major == 2 && versions[i].minor == 0) + m_version->setCurrentIndex(m_version->count() - 1); + } + + QPushButton *btn = new QPushButton(tr("Create context")); + connect(btn, &QPushButton::clicked, this, &Widget::start); + btn->setMinimumSize(120, 40); + hbox->addWidget(btn); + + layout->addItem(hbox); +} + +void Widget::addProfiles(QLayout *layout) +{ + QGroupBox *groupBox = new QGroupBox(tr("Profile")); + QVBoxLayout *vbox = new QVBoxLayout; + for (size_t i = 0; i < sizeof(profiles) / sizeof(Profile); ++i) + vbox->addWidget(new QRadioButton(QString::fromLatin1(profiles[i].str))); + static_cast<QRadioButton *>(vbox->itemAt(0)->widget())->setChecked(true); + groupBox->setLayout(vbox); + layout->addWidget(groupBox); + m_profiles = vbox; +} + +void Widget::addOptions(QLayout *layout) +{ + QGroupBox *groupBox = new QGroupBox(tr("Options")); + QVBoxLayout *vbox = new QVBoxLayout; + for (size_t i = 0; i < sizeof(options) / sizeof(Option); ++i) + vbox->addWidget(new QCheckBox(QString::fromLatin1(options[i].str))); + groupBox->setLayout(vbox); + layout->addWidget(groupBox); + m_options = vbox; +} + +void Widget::addRenderableTypes(QLayout *layout) +{ + QGroupBox *groupBox = new QGroupBox(tr("Renderable type")); + QVBoxLayout *vbox = new QVBoxLayout; + for (size_t i = 0; i < sizeof(renderables) / sizeof(Renderable); ++i) + vbox->addWidget(new QRadioButton(QString::fromLatin1(renderables[i].str))); + static_cast<QRadioButton *>(vbox->itemAt(0)->widget())->setChecked(true); + groupBox->setLayout(vbox); + layout->addWidget(groupBox); + m_renderables = vbox; +} + +void Widget::addRenderWindow() +{ + m_renderWindowLayout->addWidget(m_renderWindowContainer); +} + +static QWidget *widgetWithLayout(QLayout *layout) +{ + QWidget *w = new QWidget; + w->setLayout(layout); + return w; +} + +Widget::Widget(QWidget *parent) + : QWidget(parent) +{ + QVBoxLayout *layout = new QVBoxLayout; + QSplitter *vsplit = new QSplitter(Qt::Vertical); + layout->addWidget(vsplit); + + QSplitter *hsplit = new QSplitter; + + QVBoxLayout *settingsLayout = new QVBoxLayout; + addVersions(settingsLayout); + addProfiles(settingsLayout); + addOptions(settingsLayout); + addRenderableTypes(settingsLayout); + hsplit->addWidget(widgetWithLayout(settingsLayout)); + + QVBoxLayout *outputLayout = new QVBoxLayout; + m_output = new QTextEdit; + m_output->setReadOnly(true); + outputLayout->addWidget(m_output); + m_extensions = new QTextEdit; + m_extensions->setReadOnly(true); + outputLayout->addWidget(m_extensions); + hsplit->addWidget(widgetWithLayout(outputLayout)); + + hsplit->setStretchFactor(0, 4); + hsplit->setStretchFactor(1, 6); + vsplit->addWidget(hsplit); + + m_renderWindowLayout = new QVBoxLayout; + vsplit->addWidget(widgetWithLayout(m_renderWindowLayout)); + vsplit->setStretchFactor(1, 5); + + m_renderWindowContainer = new QWidget; + addRenderWindow(); + + setLayout(layout); +} + +void Widget::start() +{ + QSurfaceFormat fmt; + + int idx = m_version->currentIndex(); + if (idx < 0) + return; + fmt.setVersion(versions[idx].major, versions[idx].minor); + + for (size_t i = 0; i < sizeof(profiles) / sizeof(Profile); ++i) + if (static_cast<QRadioButton *>(m_profiles->itemAt(int(i))->widget())->isChecked()) { + fmt.setProfile(profiles[i].profile); + break; + } + + bool forceGLSL110 = false; + for (size_t i = 0; i < sizeof(options) / sizeof(Option); ++i) + if (static_cast<QCheckBox *>(m_options->itemAt(int(i))->widget())->isChecked()) { + if (options[i].option) + fmt.setOption(options[i].option); + else if (i == 3) + forceGLSL110 = true; + } + + for (size_t i = 0; i < sizeof(renderables) / sizeof(Renderable); ++i) + if (static_cast<QRadioButton *>(m_renderables->itemAt(int(i))->widget())->isChecked()) { + fmt.setRenderableType(renderables[i].renderable); + break; + } + + // The example rendering will need a depth buffer. + fmt.setDepthBufferSize(16); + + m_output->clear(); + m_extensions->clear(); + qDebug() << "Requesting surface format" << fmt; + + m_renderWindowLayout->removeWidget(m_renderWindowContainer); + delete m_renderWindowContainer; + + RenderWindow *renderWindow = new RenderWindow(fmt); + if (!renderWindow->context()) { + m_output->append(tr("Failed to create context")); + delete renderWindow; + m_renderWindowContainer = new QWidget; + addRenderWindow(); + return; + } + + renderWindow->setForceGLSL110(forceGLSL110); + connect(renderWindow, &RenderWindow::ready, this, &Widget::renderWindowReady); + connect(renderWindow, &RenderWindow::error, this, &Widget::renderWindowError); + + m_renderWindowContainer = QWidget::createWindowContainer(renderWindow); + addRenderWindow(); +} + +void Widget::renderWindowReady() +{ + QOpenGLContext *context = QOpenGLContext::currentContext(); + Q_ASSERT(context); + const QSurfaceFormat format = context->format(); + + m_output->append(tr("OpenGL version: %1.%2").arg(format.majorVersion()).arg(format.minorVersion())); + + for (size_t i = 0; i < sizeof(profiles) / sizeof(Profile); ++i) + if (profiles[i].profile == format.profile()) { + m_output->append(tr("Profile: %1").arg(QString::fromLatin1(profiles[i].str))); + break; + } + + QString opts; + for (size_t i = 0; i < sizeof(options) / sizeof(Option); ++i) + if (format.testOption(options[i].option)) + opts += QString::fromLatin1(options[i].str) + QStringLiteral(" "); + m_output->append(tr("Options: %1").arg(opts)); + + for (size_t i = 0; i < sizeof(renderables) / sizeof(Renderable); ++i) + if (renderables[i].renderable == format.renderableType()) { + m_output->append(tr("Renderable type: %1").arg(QString::fromLatin1(renderables[i].str))); + break; + } + + QString vendor, renderer, version, glslVersion; + const GLubyte *p; + if ((p = glGetString(GL_VENDOR))) + vendor = QString::fromLatin1(reinterpret_cast<const char *>(p)); + if ((p = glGetString(GL_RENDERER))) + renderer = QString::fromLatin1(reinterpret_cast<const char *>(p)); + if ((p = glGetString(GL_VERSION))) + version = QString::fromLatin1(reinterpret_cast<const char *>(p)); + if ((p = glGetString(GL_SHADING_LANGUAGE_VERSION))) + glslVersion = QString::fromLatin1(reinterpret_cast<const char *>(p)); + + m_output->append(tr("\nVendor: %1").arg(vendor)); + m_output->append(tr("Renderer: %1").arg(renderer)); + m_output->append(tr("OpenGL version: %1").arg(version)); + m_output->append(tr("GLSL version: %1").arg(glslVersion)); + + m_output->append(tr("\nDepth buffer size: %1").arg(QString::number(format.depthBufferSize()))); + m_output->append(tr("Stencil buffer size: %1").arg(QString::number(format.stencilBufferSize()))); + m_output->append(tr("Samples: %1").arg(QString::number(format.samples()))); + m_output->append(tr("Red buffer size: %1").arg(QString::number(format.redBufferSize()))); + m_output->append(tr("Green buffer size: %1").arg(QString::number(format.greenBufferSize()))); + m_output->append(tr("Blue buffer size: %1").arg(QString::number(format.blueBufferSize()))); + m_output->append(tr("Alpha buffer size: %1").arg(QString::number(format.alphaBufferSize()))); + m_output->append(tr("Swap interval: %1").arg(QString::number(format.swapInterval()))); + + const char *gltype[] = { "Desktop", "GLES 2", "GLES 1" }; + m_output->append(tr("\nQt OpenGL configuration: %1") + .arg(QString::fromLatin1(gltype[QOpenGLFunctions::platformGLType()]))); + m_output->append(tr("Qt OpenGL library handle: %1") + .arg(QString::number(qintptr(QOpenGLFunctions::platformGLHandle()), 16))); + + QList<QByteArray> extensionList = context->extensions().toList(); + std::sort(extensionList.begin(), extensionList.end()); + m_extensions->append(tr("Found %1 extensions:").arg(extensionList.count())); + Q_FOREACH (const QByteArray &ext, extensionList) + m_extensions->append(QString::fromLatin1(ext)); + + m_output->moveCursor(QTextCursor::Start); + m_extensions->moveCursor(QTextCursor::Start); +} + +void Widget::renderWindowError(const QString &msg) +{ + m_output->append(tr("An error has occurred:\n%1").arg(msg)); +} diff --git a/examples/opengl/contextinfo/widget.h b/examples/opengl/contextinfo/widget.h new file mode 100644 index 0000000000..dcae66dac0 --- /dev/null +++ b/examples/opengl/contextinfo/widget.h @@ -0,0 +1,79 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names +** of its contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef WIDGET_H +#define WIDGET_H + +#include <QWidget> + +QT_FORWARD_DECLARE_CLASS(QComboBox) +QT_FORWARD_DECLARE_CLASS(QTextEdit) +QT_FORWARD_DECLARE_CLASS(QVBoxLayout) + +class Widget : public QWidget +{ + Q_OBJECT + +public: + explicit Widget(QWidget *parent = 0); + +private slots: + void start(); + void renderWindowReady(); + void renderWindowError(const QString &msg); + +private: + void addVersions(QLayout *layout); + void addProfiles(QLayout *layout); + void addOptions(QLayout *layout); + void addRenderableTypes(QLayout *layout); + void addRenderWindow(); + + QComboBox *m_version; + QLayout *m_profiles; + QLayout *m_options; + QLayout *m_renderables; + QTextEdit *m_output; + QTextEdit *m_extensions; + QVBoxLayout *m_renderWindowLayout; + QWidget *m_renderWindowContainer; +}; + +#endif // WIDGET_H diff --git a/examples/opengl/opengl.pro b/examples/opengl/opengl.pro index 54b0321b26..3d12d8707f 100644 --- a/examples/opengl/opengl.pro +++ b/examples/opengl/opengl.pro @@ -25,6 +25,7 @@ contains(QT_CONFIG, opengles1)|contains(QT_CONFIG, opengles2){ } SUBDIRS += hellowindow \ - paintedwindow + paintedwindow \ + contextinfo EXAMPLE_FILES = shared |