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-rw-r--r--src/plugins/platforms/ios/qiosbackingstore.mm155
1 files changed, 120 insertions, 35 deletions
diff --git a/src/plugins/platforms/ios/qiosbackingstore.mm b/src/plugins/platforms/ios/qiosbackingstore.mm
index 5ea5fbd8d1..875d06dc80 100644
--- a/src/plugins/platforms/ios/qiosbackingstore.mm
+++ b/src/plugins/platforms/ios/qiosbackingstore.mm
@@ -1,40 +1,32 @@
/****************************************************************************
**
-** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
**
-** $QT_BEGIN_LICENSE:LGPL$
+** $QT_BEGIN_LICENSE:LGPL21$
** 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 Digia. For licensing terms and
-** conditions see http://qt.digia.com/licensing. For further information
-** use the contact form at http://qt.digia.com/contact-us.
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
-** In addition, as a special exception, Digia gives you certain additional
-** rights. These rights are described in the Digia Qt LGPL Exception
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3.0 as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU General Public License version 3.0 requirements will be
-** met: http://www.gnu.org/copyleft/gpl.html.
-**
-**
** $QT_END_LICENSE$
**
****************************************************************************/
@@ -44,54 +36,130 @@
#include <QtGui/QOpenGLContext>
#include <QtGui/QOpenGLPaintDevice>
+#include <QtGui/QOpenGLFramebufferObject>
+#include <QtGui/QOffscreenSurface>
+#include <QtGui/private/qwindow_p.h>
#include <QtDebug>
+class QIOSPaintDevice : public QOpenGLPaintDevice
+{
+public:
+ QIOSPaintDevice(QIOSBackingStore *backingStore) : m_backingStore(backingStore) { }
+ void ensureActiveTarget() Q_DECL_OVERRIDE;
+
+private:
+ QIOSBackingStore *m_backingStore;
+};
+
+void QIOSPaintDevice::ensureActiveTarget()
+{
+ m_backingStore->makeCurrent();
+}
+
QIOSBackingStore::QIOSBackingStore(QWindow *window)
: QPlatformBackingStore(window)
, m_context(new QOpenGLContext)
, m_device(0)
+ , m_fbo(0)
+ , m_surface(0)
{
QSurfaceFormat fmt = window->requestedFormat();
- fmt.setDepthBufferSize(16);
- fmt.setStencilBufferSize(8);
+ // Due to sharing QIOSContext redirects our makeCurrent on window() attempts to
+ // the global share context. Hence it is essential to have a compatible format.
+ fmt.setDepthBufferSize(QSurfaceFormat::defaultFormat().depthBufferSize());
+ fmt.setStencilBufferSize(QSurfaceFormat::defaultFormat().stencilBufferSize());
+
+ if (fmt.depthBufferSize() == 0)
+ qWarning("No depth in default format, expect rendering errors");
- // Needed to prevent QOpenGLContext::makeCurrent() from failing
- window->setSurfaceType(QSurface::OpenGLSurface);
+ if (window->surfaceType() == QSurface::RasterSurface)
+ window->setSurfaceType(QSurface::OpenGLSurface);
m_context->setFormat(fmt);
m_context->setScreen(window->screen());
+ Q_ASSERT(QOpenGLContext::globalShareContext());
+ m_context->setShareContext(QOpenGLContext::globalShareContext());
m_context->create();
}
QIOSBackingStore::~QIOSBackingStore()
{
+ delete m_fbo;
+ delete m_surface;
delete m_context;
delete m_device;
}
+void QIOSBackingStore::makeCurrent()
+{
+ QSurface *surface = m_surface ? m_surface : static_cast<QSurface *>(window());
+ if (!m_context->makeCurrent(surface))
+ qWarning("QIOSBackingStore: makeCurrent() failed");
+ if (m_fbo)
+ m_fbo->bind();
+}
+
void QIOSBackingStore::beginPaint(const QRegion &)
{
- m_context->makeCurrent(window());
+ if (qt_window_private(window())->compositing) {
+ if (!m_fbo) {
+ delete m_device;
+ m_device = 0;
+ }
+ if (!m_surface) {
+ m_surface = new QOffscreenSurface;
+ m_surface->setFormat(m_context->format());
+ m_surface->create();
+ }
+ if (!m_context->makeCurrent(m_surface))
+ qWarning("QIOSBackingStore: Failed to make offscreen surface current");
+ const QSize size = window()->size() * window()->devicePixelRatio();
+ if (m_fbo && m_fbo->size() != size) {
+ delete m_fbo;
+ m_fbo = 0;
+ }
+ if (!m_fbo)
+ m_fbo = new QOpenGLFramebufferObject(size, QOpenGLFramebufferObject::CombinedDepthStencil);
+ } else if (m_fbo) {
+ delete m_fbo;
+ m_fbo = 0;
+ delete m_surface;
+ m_surface = 0;
+ delete m_device;
+ m_device = 0;
+ }
+
+ makeCurrent();
- QIOSWindow *iosWindow = static_cast<QIOSWindow *>(window()->handle());
- static_cast<QOpenGLPaintDevice *>(paintDevice())->setSize(window()->size() * iosWindow->devicePixelRatio());
+ if (!m_device)
+ m_device = new QIOSPaintDevice(this);
}
-QPaintDevice *QIOSBackingStore::paintDevice()
+void QIOSBackingStore::endPaint()
{
- if (!m_device) {
- QIOSWindow *iosWindow = static_cast<QIOSWindow *>(window()->handle());
- QOpenGLPaintDevice *openGLDevice = new QOpenGLPaintDevice(window()->size() * iosWindow->devicePixelRatio());
- openGLDevice->setDevicePixelRatio(iosWindow->devicePixelRatio());
- m_device = openGLDevice;
+ if (m_fbo) {
+ m_fbo->release();
+ glFlush();
}
+}
+
+QPaintDevice *QIOSBackingStore::paintDevice()
+{
+ Q_ASSERT(m_device);
+
+ // Keep paint device size and device pixel ratio in sync with window
+ qreal devicePixelRatio = window()->devicePixelRatio();
+ m_device->setSize(window()->size() * devicePixelRatio);
+ m_device->setDevicePixelRatio(devicePixelRatio);
return m_device;
}
void QIOSBackingStore::flush(QWindow *window, const QRegion &region, const QPoint &offset)
{
+ Q_ASSERT(!qt_window_private(window)->compositing);
+
Q_UNUSED(region);
Q_UNUSED(offset);
@@ -121,4 +189,21 @@ void QIOSBackingStore::resize(const QSize &size, const QRegion &staticContents)
qWarning() << "QIOSBackingStore needs to have the same size as its window";
}
+GLuint QIOSBackingStore::toTexture(const QRegion &dirtyRegion, QSize *textureSize, TextureFlags *flags) const
+{
+ Q_ASSERT(qt_window_private(window())->compositing);
+ Q_UNUSED(dirtyRegion);
+
+ if (flags)
+ *flags = TextureFlip;
+
+ if (!m_fbo)
+ return 0;
+
+ if (textureSize)
+ *textureSize = m_fbo->size();
+
+ return m_fbo->texture();
+}
+
QT_END_NAMESPACE
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-02 20:50:54 +0000