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/*
Copyright 2016-2023 melonDS team
This file is part of melonDS.
melonDS 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 3 of the License, or (at your option)
any later version.
melonDS 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 melonDS. If not, see http://www.gnu.org/licenses/.
*/
#pragma once
#include "OpenGLSupport.h"
#include <array>
#include <memory>
namespace GPU
{
struct RenderSettings;
class GLCompositor
{
public:
static std::unique_ptr<GLCompositor> New() noexcept;
GLCompositor(const GLCompositor&) = delete;
GLCompositor& operator=(const GLCompositor&) = delete;
~GLCompositor();
void Reset();
void SetRenderSettings(RenderSettings& settings);
void Stop();
void RenderFrame();
void BindOutputTexture(int buf);
private:
GLCompositor(std::array<GLuint, 3> CompShader) noexcept;
int Scale;
int ScreenH, ScreenW;
std::array<GLuint, 3> CompShader;
GLuint CompScaleLoc;
GLuint Comp3DXPosLoc;
GLuint CompVertexBufferID;
GLuint CompVertexArrayID;
struct CompVertex
{
float Position[2];
float Texcoord[2];
};
CompVertex CompVertices[2 * 3*2];
GLuint CompScreenInputTex;
GLuint CompScreenOutputTex[2];
GLuint CompScreenOutputFB[2];
};
}
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