// If copyBack is true, bind will copy the contents of the render
// FBO to the texture (which is not bound to the texture, as it's
// a multisample FBO).
GLuint QGLPixmapData::bind(bool copyBack) const
{
if (m_renderFbo && copyBack) {
copyBackFromRenderFbo(true);
} else {
ensureCreated();
}
GLuint id = m_texture.id;
glBindTexture(GL_TEXTURE_2D, id);
if (m_hasFillColor) {
if (!useFramebufferObjects()) {
m_source = QImage(w, h, QImage::Format_ARGB32_Premultiplied);
m_source.fill(PREMUL(m_fillColor.rgba()));
}
m_hasFillColor = false;
GLenum format = qt_gl_preferredTextureFormat();
QImage tx(w, h, QImage::Format_ARGB32_Premultiplied);
tx.fill(qt_gl_convertToGLFormat(m_fillColor.rgba(), format));
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, w, h, format, GL_UNSIGNED_BYTE, tx.bits());
}
return id;
}
QImage QGLPixmapData::toImage() const
{
if (!isValid())
return QImage();
if (m_renderFbo) {
copyBackFromRenderFbo(true);
} else if (!m_source.isNull()) {
QImageData *data = const_cast<QImage &>(m_source).data_ptr();
if (data->paintEngine && data->paintEngine->isActive()
&& data->paintEngine->paintDevice() == &m_source)
{
return m_source.copy();
}
return m_source;
} else if (m_dirty || m_hasFillColor) {
return fillImage(m_fillColor);
} else {
ensureCreated();
}
QGLShareContextScope ctx(qt_gl_share_context());
glBindTexture(GL_TEXTURE_2D, m_texture.id);
return qt_gl_read_texture(QSize(w, h), true, true);
}
QImage QGLPixmapData::toImage() const
{
if (!isValid())
return QImage();
if (m_renderFbo) {
copyBackFromRenderFbo(true);
} else if (!m_source.isNull()) {
// QVolatileImage::toImage() will make a copy always so no check
// for active painting is needed.
QImage img = m_source.toImage();
if (img.format() == QImage::Format_MonoLSB) {
img.setColorCount(2);
img.setColor(0, QColor(Qt::color0).rgba());
img.setColor(1, QColor(Qt::color1).rgba());
}
return img;
} else if (m_dirty || m_hasFillColor) {
return fillImage(m_fillColor);
} else {
ensureCreated();
}
QGLShareContextScope ctx(qt_gl_share_widget()->context());
glBindTexture(GL_TEXTURE_2D, m_texture.id);
return qt_gl_read_texture(QSize(w, h), true, true);
}
QImage QGLPixmapData::toImage() const
{
if (!isValid())
return QImage();
if (m_renderFbo) {
copyBackFromRenderFbo(true);
} else if (!m_source.isNull()) {
return m_source;
} else if (m_dirty || m_hasFillColor) {
return fillImage(m_fillColor);
} else {
ensureCreated();
}
QGLShareContextScope ctx(qt_gl_share_widget()->context());
glBindTexture(GL_TEXTURE_2D, m_texture.id);
return qt_gl_read_texture(QSize(w, h), true, true);
}
