void QGLPixmapGLPaintDevice::endPaint()
{
if (!data->isValid())
return;
data->copyBackFromRenderFbo(false);
// Base's endPaint will restore the previous FBO binding
QGLPaintDevice::endPaint();
qgl_fbo_pool()->release(data->m_renderFbo);
data->m_renderFbo = 0;
}
QPaintEngine* QGLPixmapData::paintEngine() const
{
if (!isValid())
return 0;
if (m_renderFbo)
return m_engine;
if (useFramebufferObjects()) {
extern QGLWidget* qt_gl_share_widget();
if (!QGLContext::currentContext())
qt_gl_share_widget()->makeCurrent();
QGLShareContextScope ctx(qt_gl_share_widget()->context());
QGLFramebufferObjectFormat format;
format.setAttachment(QGLFramebufferObject::CombinedDepthStencil);
format.setSamples(4);
format.setInternalTextureFormat(GLenum(m_hasAlpha ? GL_RGBA : GL_RGB));
m_renderFbo = qgl_fbo_pool()->acquire(size(), format);
if (m_renderFbo) {
if (!m_engine)
m_engine = new QGL2PaintEngineEx;
return m_engine;
}
qWarning() << "Failed to create pixmap texture buffer of size " << size() << ", falling back to raster paint engine";
}
// If the application wants to paint into the QPixmap, we first
// force it to QImage format and then paint into that.
// This is simpler than juggling multiple GL contexts.
const_cast<QGLPixmapData *>(this)->forceToImage();
if (m_hasFillColor) {
m_source.fill(PREMUL(m_fillColor.rgba()));
m_hasFillColor = false;
}
return m_source.paintEngine();
}
QPaintEngine* QGLPixmapData::paintEngine() const
{
if (!isValid())
return 0;
if (m_renderFbo)
return m_engine;
if (useFramebufferObjects()) {
extern QGLWidget* qt_gl_share_widget();
if (!QGLContext::currentContext())
const_cast<QGLContext *>(qt_gl_share_context())->makeCurrent();
QGLShareContextScope ctx(qt_gl_share_context());
QGLFramebufferObjectFormat format;
format.setAttachment(QGLFramebufferObject::CombinedDepthStencil);
format.setSamples(4);
format.setInternalTextureFormat(GLenum(m_hasAlpha ? GL_RGBA : GL_RGB));
m_renderFbo = qgl_fbo_pool()->acquire(size(), format);
if (m_renderFbo) {
if (!m_engine)
m_engine = new QGL2PaintEngineEx;
return m_engine;
}
qWarning() << "Failed to create pixmap texture buffer of size " << size() << ", falling back to raster paint engine";
}
m_dirty = true;
if (m_source.size() != size())
m_source = QImage(size(), QImage::Format_ARGB32_Premultiplied);
if (m_hasFillColor) {
m_source.fill(PREMUL(m_fillColor.rgba()));
m_hasFillColor = false;
}
return m_source.paintEngine();
}
