b50f747876
This commit sets up udev and the DrmBackend to list and use all GPUs. BUG: 425586 BUG: 417323
106 lines
3.2 KiB
C++
106 lines
3.2 KiB
C++
/*
|
|
KWin - the KDE window manager
|
|
This file is part of the KDE project.
|
|
|
|
SPDX-FileCopyrightText: 2019 NVIDIA Inc.
|
|
|
|
SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
#ifndef KWIN_EGL_STREAM_BACKEND_H
|
|
#define KWIN_EGL_STREAM_BACKEND_H
|
|
#include "abstract_egl_backend.h"
|
|
#include <KWaylandServer/surface_interface.h>
|
|
#include <KWaylandServer/eglstream_controller_interface.h>
|
|
#include <wayland-server-core.h>
|
|
|
|
namespace KWin
|
|
{
|
|
|
|
class DrmBackend;
|
|
class DrmOutput;
|
|
class DrmBuffer;
|
|
class DrmGpu;
|
|
|
|
/**
|
|
* @brief OpenGL Backend using Egl with an EGLDevice.
|
|
*/
|
|
class EglStreamBackend : public AbstractEglBackend
|
|
{
|
|
Q_OBJECT
|
|
public:
|
|
EglStreamBackend(DrmBackend *b, DrmGpu *gpu);
|
|
~EglStreamBackend() override;
|
|
void screenGeometryChanged(const QSize &size) override;
|
|
SceneOpenGLTexturePrivate *createBackendTexture(SceneOpenGLTexture *texture) override;
|
|
QRegion prepareRenderingFrame() override;
|
|
void endRenderingFrame(const QRegion &renderedRegion, const QRegion &damagedRegion) override;
|
|
void endRenderingFrameForScreen(int screenId, const QRegion &damage, const QRegion &damagedRegion) override;
|
|
bool usesOverlayWindow() const override;
|
|
bool perScreenRendering() const override;
|
|
QRegion prepareRenderingForScreen(int screenId) override;
|
|
void init() override;
|
|
|
|
protected:
|
|
void present() override;
|
|
void cleanupSurfaces() override;
|
|
|
|
private:
|
|
bool initializeEgl();
|
|
bool initBufferConfigs();
|
|
bool initRenderingContext();
|
|
struct StreamTexture
|
|
{
|
|
EGLStreamKHR stream;
|
|
GLuint texture;
|
|
};
|
|
StreamTexture *lookupStreamTexture(KWaylandServer::SurfaceInterface *surface);
|
|
void attachStreamConsumer(KWaylandServer::SurfaceInterface *surface,
|
|
void *eglStream,
|
|
wl_array *attribs);
|
|
struct Output
|
|
{
|
|
DrmOutput *output = nullptr;
|
|
DrmBuffer *buffer = nullptr;
|
|
EGLSurface eglSurface = EGL_NO_SURFACE;
|
|
EGLStreamKHR eglStream = EGL_NO_STREAM_KHR;
|
|
};
|
|
bool resetOutput(Output &output, DrmOutput *drmOutput);
|
|
bool makeContextCurrent(const Output &output);
|
|
void presentOnOutput(Output &output);
|
|
void cleanupOutput(const Output &output);
|
|
void createOutput(DrmOutput *output);
|
|
|
|
DrmBackend *m_backend;
|
|
DrmGpu *m_gpu;
|
|
QVector<Output> m_outputs;
|
|
KWaylandServer::EglStreamControllerInterface *m_eglStreamControllerInterface;
|
|
QHash<KWaylandServer::SurfaceInterface *, StreamTexture> m_streamTextures;
|
|
|
|
friend class EglStreamTexture;
|
|
};
|
|
|
|
/**
|
|
* @brief External texture bound to an EGLStreamKHR.
|
|
*/
|
|
class EglStreamTexture : public AbstractEglTexture
|
|
{
|
|
public:
|
|
~EglStreamTexture() override;
|
|
bool loadTexture(WindowPixmap *pixmap) override;
|
|
void updateTexture(WindowPixmap *pixmap) override;
|
|
|
|
private:
|
|
EglStreamTexture(SceneOpenGLTexture *texture, EglStreamBackend *backend);
|
|
bool acquireStreamFrame(EGLStreamKHR stream);
|
|
void createFbo();
|
|
void copyExternalTexture(GLuint tex);
|
|
bool attachBuffer(KWaylandServer::BufferInterface *buffer);
|
|
EglStreamBackend *m_backend;
|
|
GLuint m_fbo, m_rbo;
|
|
GLenum m_format;
|
|
friend class EglStreamBackend;
|
|
};
|
|
|
|
} // namespace
|
|
|
|
#endif
|