check_error();
chain->finalize();
check_error();
+
+ overlay_chain.reset(new EffectChain(overlay_width, overlay_height, resource_pool));
+ overlay_input = (movit::FlatInput *)overlay_chain->add_input(new FlatInput(image_format, FORMAT_GRAYSCALE, GL_UNSIGNED_BYTE, overlay_width, overlay_height));
+
+ overlay_chain->add_output(inout_format, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
+ overlay_chain->finalize();
}
void JPEGFrameView::resizeGL(int width, int height)
void JPEGFrameView::paintGL()
{
+ glViewport(0, 0, width(), height());
if (current_frame == nullptr) {
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
check_error();
chain->render_to_screen();
+
+ if (overlay_image != nullptr) {
+ if (overlay_input_needs_refresh) {
+ overlay_input->set_pixel_data(overlay_image->bits());
+ }
+ glViewport(width() - overlay_width, 0, overlay_width, overlay_height);
+ overlay_chain->render_to_screen();
+ }
}
void JPEGFrameView::setDecodedFrame(std::shared_ptr<Frame> frame)
emit clicked();
}
}
+
+void JPEGFrameView::set_overlay(const string &text)
+{
+ if (text.empty()) {
+ overlay_image.reset();
+ return;
+ }
+
+ overlay_image.reset(new QImage(overlay_width, overlay_height, QImage::Format_Grayscale8));
+ overlay_image->fill(0);
+ QPainter painter(overlay_image.get());
+
+ painter.setPen(Qt::white);
+ QFont font = painter.font();
+ font.setPointSize(12);
+ painter.setFont(font);
+
+ painter.drawText(QRectF(0, 0, overlay_width, overlay_height), Qt::AlignCenter, QString::fromStdString(text));
+
+ // Don't refresh immediately; we might not have an OpenGL context here.
+ overlay_input_needs_refresh = true;
+}