baf05ec4a5
This is, primarily, to make naming consistent with SurfaceItem, SurfacePixmap and just "Surface" in the future.
116 lines
3.6 KiB
C++
116 lines
3.6 KiB
C++
/*
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KWin - the KDE window manager
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This file is part of the KDE project.
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SPDX-FileCopyrightText: 2019 NVIDIA Inc.
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef KWIN_EGL_STREAM_BACKEND_H
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#define KWIN_EGL_STREAM_BACKEND_H
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#include "abstract_egl_drm_backend.h"
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#include "basiceglsurfacetexture_wayland.h"
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#include <KWaylandServer/surface_interface.h>
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#include <KWaylandServer/eglstream_controller_interface.h>
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#include <wayland-server-core.h>
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namespace KWin
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{
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class DrmAbstractOutput;
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class DrmDumbBuffer;
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class DumbSwapchain;
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class ShadowBuffer;
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class DrmCrtc;
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class DrmPlane;
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/**
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* @brief OpenGL Backend using Egl with an EGLDevice.
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*/
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class EglStreamBackend : public AbstractEglDrmBackend
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{
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Q_OBJECT
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public:
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EglStreamBackend(DrmBackend *b, DrmGpu *gpu);
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~EglStreamBackend() override;
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SurfaceTexture *createSurfaceTextureInternal(SurfacePixmapInternal *pixmap) override;
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SurfaceTexture *createSurfaceTextureWayland(SurfacePixmapWayland *pixmap) override;
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QRegion beginFrame(AbstractOutput *output) override;
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void endFrame(AbstractOutput *output, const QRegion &damage, const QRegion &damagedRegion) override;
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void init() override;
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bool hasOutput(AbstractOutput *output) const override;
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bool addOutput(DrmAbstractOutput *output) override;
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void removeOutput(DrmAbstractOutput *output) override;
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QSharedPointer<DrmBuffer> renderTestFrame(DrmAbstractOutput *output) override;
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uint32_t drmFormat() const override;
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protected:
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void cleanupSurfaces() override;
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private:
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bool initializeEgl();
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bool initBufferConfigs();
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bool initRenderingContext();
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struct StreamTexture
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{
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EGLStreamKHR stream;
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GLuint texture;
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};
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StreamTexture *lookupStreamTexture(KWaylandServer::SurfaceInterface *surface);
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void destroyStreamTexture(KWaylandServer::SurfaceInterface *surface);
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void attachStreamConsumer(KWaylandServer::SurfaceInterface *surface,
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void *eglStream,
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wl_array *attribs);
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struct Output
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{
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DrmOutput *output = nullptr;
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QSharedPointer<DrmDumbBuffer> buffer;
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EGLSurface eglSurface = EGL_NO_SURFACE;
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EGLStreamKHR eglStream = EGL_NO_STREAM_KHR;
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QSharedPointer<ShadowBuffer> shadowBuffer;
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DrmPlane *targetPlane = nullptr;
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// for operation as secondary GPU
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QSharedPointer<DumbSwapchain> dumbSwapchain;
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};
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bool resetOutput(Output &output);
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bool createEglSurface(Output &o);
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bool makeContextCurrent(const Output &output);
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void cleanupOutput(Output &output);
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bool needsReset(const Output &o) const;
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QMap<AbstractOutput *, Output> m_outputs;
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KWaylandServer::EglStreamControllerInterface *m_eglStreamControllerInterface;
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QHash<KWaylandServer::SurfaceInterface *, StreamTexture> m_streamTextures;
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friend class EglStreamSurfaceTextureWayland;
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};
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class EglStreamSurfaceTextureWayland : public BasicEGLSurfaceTextureWayland
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{
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public:
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EglStreamSurfaceTextureWayland(EglStreamBackend *backend, SurfacePixmapWayland *pixmap);
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~EglStreamSurfaceTextureWayland() override;
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bool create() override;
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void update(const QRegion ®ion) override;
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private:
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bool acquireStreamFrame(EGLStreamKHR stream);
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void createFbo();
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void copyExternalTexture(GLuint tex);
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bool attachBuffer(KWaylandServer::ClientBuffer *buffer);
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bool checkBuffer(KWaylandServer::SurfaceInterface *surface,
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KWaylandServer::ClientBuffer *buffer);
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EglStreamBackend *m_backend;
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GLuint m_fbo, m_rbo, m_textureId;
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GLenum m_format;
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};
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} // namespace
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#endif
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