Method DrawOverscanMask

src/video_display.cpp:228–264

}

void VideoDisplay::DrawOverscanMask(float horizontal_percent, float vertical_percent) const {
	Vector2D v = Vector2D(viewport_width, viewport_height) / scale_factor;
	Vector2D size = Vector2D(horizontal_percent, vertical_percent) * v;

	// Clockwise from top-left
	Vector2D corners[] = {
		size,
		Vector2D(viewport_width / scale_factor - size.X(), size),
		v - size,
		Vector2D(size, viewport_height  / scale_factor - size.Y())
	};

	// Shift to compensate for black bars
	Vector2D pos = Vector2D(viewport_left, viewport_top) / scale_factor;
	for (auto& corner : corners)
		corner = corner + pos;

	int count = 0;
	std::vector<float> points;
	for (size_t i = 0; i < 4; ++i) {
		size_t prev = (i + 3) % 4;
		size_t next = (i + 1) % 4;
		count += SplineCurve(
				(corners[prev] + corners[i] * 4) / 5,
				corners[i], corners[i],
				(corners[next] + corners[i] * 4) / 5)
			.GetPoints(points);
	}

	OpenGLWrapper gl;
	gl.SetFillColour(wxColor(30, 70, 200), .5f);
	gl.SetLineColour(*wxBLACK, 0, 1);

	std::vector<int> vstart(1, 0);
	std::vector<int> vcount(1, count);
	gl.DrawMultiPolygon(points, vstart, vcount, pos, v, true);
}

void VideoDisplay::PositionVideo() {
	auto provider = con->project->VideoProvider();