2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
4 * This file is part of CasparCG (www.casparcg.com).
6 * CasparCG is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * CasparCG is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
19 * Author: Robert Nagy, ronag89@gmail.com
24 #include <common/forward.h>
25 #include <common/memory.h>
26 #include <common/future_fwd.h>
28 #include <core/mixer/image/blend_modes.h>
29 #include <core/mixer/image/image_mixer.h>
32 #include <core/frame/frame_visitor.h>
33 #include <core/video_format.h>
35 namespace caspar { namespace accelerator { namespace ogl {
37 class image_mixer final : public core::image_mixer
39 image_mixer(const image_mixer&);
40 image_mixer& operator=(const image_mixer&);
47 image_mixer(const spl::shared_ptr<class device>& ogl, bool blend_modes_wanted, bool straight_alpha_wanted);
52 std::future<array<const std::uint8_t>> operator()(const core::video_format_desc& format_desc, bool straighten_alpha) override;
53 core::mutable_frame create_frame(const void* tag, const core::pixel_format_desc& desc, const core::audio_channel_layout& channel_layout) override;
57 void push(const core::frame_transform& frame) override;
58 void visit(const core::const_frame& frame) override;
65 spl::unique_ptr<impl> impl_;