652d7e6699
MacOS will use OpenGL 2.1 unless requested 4.1 core. Shader language version is now set to what is reported by the driver.
122 lines
3.1 KiB
C++
122 lines
3.1 KiB
C++
/*
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* 86Box A hypervisor and IBM PC system emulator that specializes in
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* running old operating systems and software designed for IBM
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* PC systems and compatibles from 1981 through fairly recent
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* system designs based on the PCI bus.
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*
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* This file is part of the 86Box distribution.
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*
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* Header file for OpenGL renderer
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*
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* Authors:
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* Teemu Korhonen
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*
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* Copyright 2022 Teemu Korhonen
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*/
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#ifndef QT_OPENGLRENDERER_HPP
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#define QT_OPENGLRENDERER_HPP
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#if defined Q_OS_MACOS || __arm__
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# define NO_BUFFER_STORAGE
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#endif
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#include <QOpenGLContext>
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#include <QOpenGLExtraFunctions>
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#include <QResizeEvent>
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#include <QTimer>
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#include <QWidget>
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#include <QWindow>
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#if !defined NO_BUFFER_STORAGE && !(QT_VERSION >= QT_VERSION_CHECK(6, 0, 0))
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# include <QtOpenGLExtensions/QOpenGLExtensions>
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#endif
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#include <atomic>
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#include <stdexcept>
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#include <tuple>
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#include <vector>
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#include "qt_opengloptions.hpp"
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#include "qt_renderercommon.hpp"
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class OpenGLRenderer : public QWindow, protected QOpenGLExtraFunctions, public RendererCommon {
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Q_OBJECT
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public:
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QOpenGLContext *context;
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OpenGLRenderer(QWidget *parent = nullptr);
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~OpenGLRenderer();
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std::vector<std::tuple<uint8_t *, std::atomic_flag *>> getBuffers() override;
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void finalize() override final;
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bool hasOptions() const override { return true; }
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QDialog *getOptions(QWidget *parent) override;
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signals:
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void initialized();
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void errorInitializing();
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public slots:
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void onBlit(int buf_idx, int x, int y, int w, int h);
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protected:
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void exposeEvent(QExposeEvent *event) override;
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void resizeEvent(QResizeEvent *event) override;
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bool event(QEvent *event) override;
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private:
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static constexpr int INIT_WIDTH = 640;
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static constexpr int INIT_HEIGHT = 400;
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static constexpr int ROW_LENGTH = 2048;
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static constexpr int BUFFERPIXELS = 4194304;
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static constexpr int BUFFERBYTES = 16777216; /* Pixel is 4 bytes. */
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static constexpr int BUFFERCOUNT = 3; /* How many buffers to use for pixel transfer (2-3 is commonly recommended). */
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OpenGLOptions *options;
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QTimer *renderTimer;
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QString glslVersion;
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bool isInitialized = false;
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bool isFinalized = false;
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GLuint unpackBufferID = 0;
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GLuint vertexArrayID = 0;
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GLuint vertexBufferID = 0;
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GLuint textureID = 0;
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int frameCounter = 0;
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OpenGLOptions::FilterType currentFilter;
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void *unpackBuffer = nullptr;
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void initialize();
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void initializeExtensions();
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void initializeBuffers();
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void applyOptions();
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void applyShader(const OpenGLShaderPass &shader);
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bool notReady() const { return !isInitialized || isFinalized; }
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/* GL_ARB_buffer_storage */
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bool hasBufferStorage = false;
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#ifndef NO_BUFFER_STORAGE
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PFNGLBUFFERSTORAGEPROC glBufferStorage = nullptr;
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#endif
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private slots:
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void render();
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void updateOptions(OpenGLOptions *newOptions);
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};
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class opengl_init_error : public std::runtime_error {
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public:
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opengl_init_error(const QString &what)
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: std::runtime_error(what.toStdString())
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{
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}
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};
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#endif
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