53 lines
2.0 KiB
C++
53 lines
2.0 KiB
C++
/*
|
|
* Modern effects for a modern Streamer
|
|
* Copyright (C) 2017 Michael Fabian Dirks
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*/
|
|
|
|
#pragma once
|
|
#include "common.hpp"
|
|
#include "gs-effect.hpp"
|
|
#include "gs-rendertarget.hpp"
|
|
#include "gs-texture.hpp"
|
|
#include "gs-vertexbuffer.hpp"
|
|
|
|
/* gs::mipmapper is an attempt at adding dynamic mip-map generation to a software
|
|
* which only supports static mip-maps. It is effectively an incredibly bad hack
|
|
* instead of a proper solution - can break any time and likely already has.
|
|
*
|
|
* Needless to say, dynamic mip-map generation costs a lot of GPU time, especially
|
|
* when things need to be synchronized. In the ideal case we would just render
|
|
* straight to the mip level, but this is not possible in DirectX 11 and OpenGL.
|
|
*
|
|
* So instead we render to a render target and copy from there to the actual
|
|
* resource. Super wasteful, but what else can we actually do?
|
|
*/
|
|
|
|
namespace streamfx::obs::gs {
|
|
class mipmapper {
|
|
std::unique_ptr<streamfx::obs::gs::vertex_buffer> _vb;
|
|
std::unique_ptr<streamfx::obs::gs::rendertarget> _rt;
|
|
streamfx::obs::gs::effect _effect;
|
|
|
|
public:
|
|
~mipmapper();
|
|
mipmapper();
|
|
|
|
void rebuild(std::shared_ptr<streamfx::obs::gs::texture> source,
|
|
std::shared_ptr<streamfx::obs::gs::texture> target);
|
|
};
|
|
} // namespace streamfx::obs::gs
|