File indexing completed on 2024-11-10 04:57:08

 /*
     KWin - the KDE window manager
     This file is part of the KDE project.
 
     SPDX-FileCopyrightText: 2021 Aleix Pol Gonzalez <aleixpol@kde.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 #pragma once
 
 #include "core/output.h"
 #include "effect/effect.h"
 #include "effect/timeline.h"
 
 namespace KWin
 {
 class GLFramebuffer;
 class GLShader;
 class GLTexture;
 
 class ScreenTransformEffect : public Effect
 {
     Q_OBJECT
 
 public:
     ScreenTransformEffect();
     ~ScreenTransformEffect() override;
 
     void prePaintScreen(ScreenPrePaintData &data, std::chrono::milliseconds presentTime) override;
     void paintScreen(const RenderTarget &renderTarget, const RenderViewport &viewport, int mask, const QRegion &region, KWin::Output *screen) override;
 
     bool isActive() const override;
 
     int requestedEffectChainPosition() const override
     {
         return 99;
     }
     static bool supported();
 
 private:
     struct Snapshot
     {
         std::shared_ptr<GLTexture> texture;
         std::shared_ptr<GLFramebuffer> framebuffer;
     };
 
     struct ScreenState
     {
         TimeLine m_timeLine;
         Snapshot m_prev;
         Snapshot m_current;
         QRect m_oldGeometry;
         OutputTransform m_oldTransform;
         qreal m_angle = 0;
     };
 
     void addScreen(Output *screen);
     void removeScreen(Output *screen);
 
     QHash<Output *, ScreenState> m_states;
 
     std::unique_ptr<GLShader> m_shader;
     int m_previousTextureLocation = -1;
     int m_currentTextureLocation = -1;
     int m_modelViewProjectioMatrixLocation = -1;
     int m_blendFactorLocation = -1;
     bool m_capturing = false;
 };
 
 } // namespace KWin