File indexing completed on 2024-05-19 16:34:46

 /*
     SPDX-FileCopyrightText: 2022 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #pragma once
 
 #include "kwineffects.h"
 #include "kwinglutils.h"
 #include "scene/itemrenderer.h"
 
 namespace KWin
 {
 
 class KWIN_EXPORT ItemRendererOpenGL : public ItemRenderer
 {
 public:
     struct RenderNode
     {
         GLTexture *texture = nullptr;
         RenderGeometry geometry;
         QMatrix4x4 transformMatrix;
         int firstVertex = 0;
         int vertexCount = 0;
         qreal opacity = 1;
         bool hasAlpha = false;
         TextureCoordinateType coordinateType = UnnormalizedCoordinates;
         qreal scale = 1.0;
     };
 
     struct RenderContext
     {
         QVector<RenderNode> renderNodes;
         QStack<QMatrix4x4> transformStack;
         QStack<qreal> opacityStack;
         const QRegion clip;
         const bool hardwareClipping;
         const qreal renderTargetScale;
     };
 
     ItemRendererOpenGL();
 
     void beginFrame(RenderTarget *renderTarget) override;
     void endFrame() override;
 
     void renderBackground(const QRegion &region) override;
     void renderItem(Item *item, int mask, const QRegion &region, const WindowPaintData &data) override;
 
     ImageItem *createImageItem(Scene *scene, Item *parent = nullptr) override;
 
 private:
     QVector4D modulate(float opacity, float brightness) const;
     void setBlendEnabled(bool enabled);
     void createRenderNode(Item *item, RenderContext *context);
 
     bool m_blendingEnabled = false;
 };
 
 } // namespace KWin