98 lines
2.9 KiB
C++
98 lines
2.9 KiB
C++
/********************************************************************
|
|
KWin - the KDE window manager
|
|
This file is part of the KDE project.
|
|
|
|
Copyright (C) 2015 Martin Gräßlin <mgraesslin@kde.org>
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*********************************************************************/
|
|
#ifndef KWIN_EGL_GBM_BACKEND_H
|
|
#define KWIN_EGL_GBM_BACKEND_H
|
|
#include "abstract_egl_backend.h"
|
|
#include "scene_opengl.h"
|
|
|
|
struct gbm_device;
|
|
struct gbm_surface;
|
|
|
|
namespace KWin
|
|
{
|
|
class DrmBackend;
|
|
class DrmBuffer;
|
|
class DrmOutput;
|
|
|
|
/**
|
|
* @brief OpenGL Backend using Egl on a GBM surface.
|
|
**/
|
|
class EglGbmBackend : public QObject, public AbstractEglBackend
|
|
{
|
|
Q_OBJECT
|
|
public:
|
|
EglGbmBackend(DrmBackend *b);
|
|
virtual ~EglGbmBackend();
|
|
void screenGeometryChanged(const QSize &size) override;
|
|
SceneOpenGL::TexturePrivate *createBackendTexture(SceneOpenGL::Texture *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;
|
|
|
|
protected:
|
|
void present() override;
|
|
void cleanupSurfaces() override;
|
|
|
|
private:
|
|
void init();
|
|
bool initializeEgl();
|
|
bool initBufferConfigs();
|
|
bool initRenderingContext();
|
|
struct Output {
|
|
DrmOutput *output = nullptr;
|
|
DrmBuffer *buffer = nullptr;
|
|
gbm_surface *gbmSurface = nullptr;
|
|
EGLSurface eglSurface = EGL_NO_SURFACE;
|
|
int bufferAge = 0;
|
|
/**
|
|
* @brief The damage history for the past 10 frames.
|
|
*/
|
|
QList<QRegion> damageHistory;
|
|
};
|
|
bool makeContextCurrent(const Output &output);
|
|
void presentOnOutput(Output &output);
|
|
void cleanupOutput(const Output &output);
|
|
void createOutput(DrmOutput *output);
|
|
DrmBackend *m_backend;
|
|
gbm_device *m_device = nullptr;
|
|
QVector<Output> m_outputs;
|
|
friend class EglGbmTexture;
|
|
};
|
|
|
|
/**
|
|
* @brief Texture using an EGLImageKHR.
|
|
**/
|
|
class EglGbmTexture : public AbstractEglTexture
|
|
{
|
|
public:
|
|
virtual ~EglGbmTexture();
|
|
|
|
private:
|
|
friend class EglGbmBackend;
|
|
EglGbmTexture(SceneOpenGL::Texture *texture, EglGbmBackend *backend);
|
|
};
|
|
|
|
} // namespace
|
|
|
|
#endif
|