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Diffstat (limited to 'src/platformsupport/eglconvenience/qeglplatformbackingstore.cpp')
| -rw-r--r-- | src/platformsupport/eglconvenience/qeglplatformbackingstore.cpp | 241 |
1 files changed, 0 insertions, 241 deletions
diff --git a/src/platformsupport/eglconvenience/qeglplatformbackingstore.cpp b/src/platformsupport/eglconvenience/qeglplatformbackingstore.cpp deleted file mode 100644 index d7d95ea97d..0000000000 --- a/src/platformsupport/eglconvenience/qeglplatformbackingstore.cpp +++ /dev/null @@ -1,241 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the plugins of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL21$ -** 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. -** -** 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 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 -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <QtGui/QOpenGLShaderProgram> -#include <QtGui/QOpenGLContext> -#include <QtGui/QPainter> - -#include "qeglplatformbackingstore_p.h" -#include "qeglcompositor_p.h" -#include "qeglplatformwindow_p.h" -#include "qeglplatformscreen_p.h" - -QT_BEGIN_NAMESPACE - -/*! - \class QEGLPlatformBackingStore - \brief A backing store implementation for EGL and GLES. - \since 5.2 - \internal - \ingroup qpa - - This implementation uploads raster-rendered widget windows into - textures and composites them onto a single native window using - QEGLCompositor. This means that multiple top-level widgets are - supported without creating actual native windows for each of them. - - The class is ready to be used as-is, the default - QEGLPlatformIntegration::createPlatformBackingStore() - implementation creates an instance which is ready to be used - without further customization. - - If QEGLCompositor is not suitable, this backing store - implementation can also be used without it. In this case a - subclass must reimplement composite() and schedule an update in - its custom compositor when this function is called. The textures - are accessible via QEGLPlatformWindow::texture(). -*/ - -QEGLPlatformBackingStore::QEGLPlatformBackingStore(QWindow *window) - : QPlatformBackingStore(window), - m_window(static_cast<QEGLPlatformWindow *>(window->handle())), - m_bsTexture(0), - m_textures(new QPlatformTextureList), - m_lockedWidgetTextures(0) -{ - m_window->setBackingStore(this); -} - -QEGLPlatformBackingStore::~QEGLPlatformBackingStore() -{ - delete m_textures; -} - -QPaintDevice *QEGLPlatformBackingStore::paintDevice() -{ - return &m_image; -} - -void QEGLPlatformBackingStore::updateTexture() -{ - if (!m_bsTexture) { - glGenTextures(1, &m_bsTexture); - glBindTexture(GL_TEXTURE_2D, m_bsTexture); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, m_image.width(), m_image.height(), 0, GL_RGBA, GL_UNSIGNED_BYTE, 0); - } else { - glBindTexture(GL_TEXTURE_2D, m_bsTexture); - } - - if (!m_dirty.isNull()) { - QRegion fixed; - QRect imageRect = m_image.rect(); - - foreach (const QRect &rect, m_dirty.rects()) { - // intersect with image rect to be sure - QRect r = imageRect & rect; - - // if the rect is wide enough it's cheaper to just - // extend it instead of doing an image copy - if (r.width() >= imageRect.width() / 2) { - r.setX(0); - r.setWidth(imageRect.width()); - } - - fixed |= r; - } - - foreach (const QRect &rect, fixed.rects()) { - // if the sub-rect is full-width we can pass the image data directly to - // OpenGL instead of copying, since there's no gap between scanlines - if (rect.width() == imageRect.width()) { - glTexSubImage2D(GL_TEXTURE_2D, 0, 0, rect.y(), rect.width(), rect.height(), GL_RGBA, GL_UNSIGNED_BYTE, - m_image.constScanLine(rect.y())); - } else { - glTexSubImage2D(GL_TEXTURE_2D, 0, rect.x(), rect.y(), rect.width(), rect.height(), GL_RGBA, GL_UNSIGNED_BYTE, - m_image.copy(rect).constBits()); - } - } - - m_dirty = QRegion(); - } -} - -void QEGLPlatformBackingStore::flush(QWindow *window, const QRegion ®ion, const QPoint &offset) -{ - // Called for ordinary raster windows. This is rare since RasterGLSurface - // support is claimed which leads to having all QWidget windows marked as - // RasterGLSurface instead of just Raster. These go through - // compositeAndFlush() instead of this function. - - Q_UNUSED(region); - Q_UNUSED(offset); - - QEGLPlatformScreen *screen = static_cast<QEGLPlatformScreen *>(m_window->screen()); - QEGLPlatformWindow *dstWin = screen->compositingWindow(); - if (!dstWin || !dstWin->isRaster()) - return; - - screen->compositingContext()->makeCurrent(dstWin->window()); - updateTexture(); - m_textures->clear(); - m_textures->appendTexture(Q_NULLPTR, m_bsTexture, window->geometry()); - composite(screen->compositingContext(), dstWin); -} - -void QEGLPlatformBackingStore::composeAndFlush(QWindow *window, const QRegion ®ion, const QPoint &offset, - QPlatformTextureList *textures, QOpenGLContext *context, - bool translucentBackground) -{ - // QOpenGLWidget content provided as textures. The raster content should go on top. - - Q_UNUSED(region); - Q_UNUSED(offset); - Q_UNUSED(context); - Q_UNUSED(translucentBackground); - - QEGLPlatformScreen *screen = static_cast<QEGLPlatformScreen *>(m_window->screen()); - QEGLPlatformWindow *dstWin = screen->compositingWindow(); - if (!dstWin || !dstWin->isRaster()) - return; - - screen->compositingContext()->makeCurrent(dstWin->window()); - - m_textures->clear(); - for (int i = 0; i < textures->count(); ++i) - m_textures->appendTexture(textures->widget(i), textures->textureId(i), textures->geometry(i), textures->flags(i)); - - updateTexture(); - m_textures->appendTexture(Q_NULLPTR, m_bsTexture, window->geometry()); - - textures->lock(true); - m_lockedWidgetTextures = textures; - - composite(screen->compositingContext(), dstWin); -} - -void QEGLPlatformBackingStore::composite(QOpenGLContext *context, QEGLPlatformWindow *window) -{ - QEGLCompositor::instance()->schedule(context, window); -} - -void QEGLPlatformBackingStore::composited() -{ - if (m_lockedWidgetTextures) { - QPlatformTextureList *textureList = m_lockedWidgetTextures; - m_lockedWidgetTextures = 0; // may reenter so null before unlocking - textureList->lock(false); - } -} - -void QEGLPlatformBackingStore::beginPaint(const QRegion ®ion) -{ - m_dirty |= region; - - if (m_image.hasAlphaChannel()) { - QPainter p(&m_image); - p.setCompositionMode(QPainter::CompositionMode_Source); - foreach (const QRect &r, region.rects()) - p.fillRect(r, Qt::transparent); - } -} - -void QEGLPlatformBackingStore::resize(const QSize &size, const QRegion &staticContents) -{ - Q_UNUSED(staticContents); - - QEGLPlatformScreen *screen = static_cast<QEGLPlatformScreen *>(m_window->screen()); - QEGLPlatformWindow *dstWin = screen->compositingWindow(); - if (!dstWin || (!dstWin->isRaster() && dstWin->window()->surfaceType() != QSurface::RasterGLSurface)) - return; - - m_image = QImage(size, QImage::Format_RGBA8888); - - m_window->create(); - - screen->compositingContext()->makeCurrent(dstWin->window()); - if (m_bsTexture) { - glDeleteTextures(1, &m_bsTexture); - m_bsTexture = 0; - } -} - -QImage QEGLPlatformBackingStore::toImage() const -{ - return m_image; -} - -QT_END_NAMESPACE |