mirror of
https://github.com/melonDS-emu/melonDS.git
synced 2024-11-14 13:27:41 -07:00
72 lines
2.0 KiB
C++
72 lines
2.0 KiB
C++
/*
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Copyright 2016-2024 melonDS team
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This file is part of melonDS.
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melonDS is free software: you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation, either version 3 of the License, or (at your option)
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any later version.
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melonDS is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with melonDS. If not, see http://www.gnu.org/licenses/.
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*/
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#pragma once
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#include "OpenGLSupport.h"
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#include <array>
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#include <optional>
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namespace melonDS
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{
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class GPU;
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struct RenderSettings;
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class GLRenderer;
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class Renderer3D;
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class GLCompositor
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{
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public:
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static std::optional<GLCompositor> New() noexcept;
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GLCompositor(const GLCompositor&) = delete;
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GLCompositor& operator=(const GLCompositor&) = delete;
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GLCompositor(GLCompositor&&) noexcept;
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GLCompositor& operator=(GLCompositor&&) noexcept;
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~GLCompositor();
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void SetScaleFactor(int scale) noexcept;
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[[nodiscard]] int GetScaleFactor() const noexcept { return Scale; }
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void Stop(const GPU& gpu) noexcept;
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void RenderFrame(const GPU& gpu, Renderer3D& renderer) noexcept;
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void BindOutputTexture(int buf);
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private:
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GLCompositor(GLuint CompShader) noexcept;
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int Scale = 0;
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int ScreenH = 0, ScreenW = 0;
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GLuint CompShader {};
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GLuint CompScaleLoc = 0;
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GLuint CompVertexBufferID = 0;
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GLuint CompVertexArrayID = 0;
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struct CompVertex
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{
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std::array<float, 2> Position {};
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std::array<float, 2> Texcoord {};
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};
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std::array<CompVertex, 2*3*2> CompVertices {};
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GLuint CompScreenInputTex = 0;
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std::array<GLuint, 2> CompScreenOutputTex {};
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std::array<GLuint, 2> CompScreenOutputFB {};
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};
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}
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