f26eeb9706
Currently, the OpenGLBackend and the QPainterBackend have hooks to indicate the start and the end of compositing cycle, but in both cases, the hooks have different names. This change fixes that inconsistency.
115 lines
3.1 KiB
C++
115 lines
3.1 KiB
C++
/*
|
|
KWin - the KDE window manager
|
|
This file is part of the KDE project.
|
|
|
|
SPDX-FileCopyrightText: 2015 Martin Gräßlin <mgraesslin@kde.org>
|
|
|
|
SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
#ifndef KWIN_EGL_GBM_BACKEND_H
|
|
#define KWIN_EGL_GBM_BACKEND_H
|
|
#include "abstract_egl_backend.h"
|
|
|
|
#include <memory>
|
|
|
|
struct gbm_surface;
|
|
|
|
namespace KWin
|
|
{
|
|
class AbstractOutput;
|
|
class DrmBackend;
|
|
class DrmBuffer;
|
|
class DrmSurfaceBuffer;
|
|
class DrmOutput;
|
|
class GbmSurface;
|
|
class DrmGpu;
|
|
|
|
/**
|
|
* @brief OpenGL Backend using Egl on a GBM surface.
|
|
*/
|
|
class EglGbmBackend : public AbstractEglBackend
|
|
{
|
|
Q_OBJECT
|
|
public:
|
|
EglGbmBackend(DrmBackend *drmBackend, DrmGpu *gpu);
|
|
~EglGbmBackend() override;
|
|
void screenGeometryChanged(const QSize &size) override;
|
|
SceneOpenGLTexturePrivate *createBackendTexture(SceneOpenGLTexture *texture) override;
|
|
bool usesOverlayWindow() const override;
|
|
bool perScreenRendering() const override;
|
|
QRegion beginFrame(int screenId) override;
|
|
void endFrame(int screenId, const QRegion &damage, const QRegion &damagedRegion) override;
|
|
void init() override;
|
|
|
|
QSharedPointer<GLTexture> textureForOutput(AbstractOutput *requestedOutput) const override;
|
|
|
|
protected:
|
|
void present() override;
|
|
void cleanupSurfaces() override;
|
|
void aboutToStartPainting(int screenId, const QRegion &damage) override;
|
|
|
|
private:
|
|
bool initializeEgl();
|
|
bool initBufferConfigs();
|
|
bool initRenderingContext();
|
|
|
|
struct Output {
|
|
DrmOutput *output = nullptr;
|
|
DrmSurfaceBuffer *buffer = nullptr;
|
|
std::shared_ptr<GbmSurface> gbmSurface;
|
|
EGLSurface eglSurface = EGL_NO_SURFACE;
|
|
int bufferAge = 0;
|
|
/**
|
|
* @brief The damage history for the past 10 frames.
|
|
*/
|
|
QList<QRegion> damageHistory;
|
|
|
|
struct {
|
|
GLuint framebuffer = 0;
|
|
GLuint texture = 0;
|
|
std::shared_ptr<GLVertexBuffer> vbo;
|
|
} render;
|
|
};
|
|
|
|
void createOutput(DrmOutput *drmOutput);
|
|
bool resetOutput(Output &output, DrmOutput *drmOutput);
|
|
std::shared_ptr<GbmSurface> createGbmSurface(const QSize &size) const;
|
|
EGLSurface createEglSurface(std::shared_ptr<GbmSurface> gbmSurface) const;
|
|
|
|
bool makeContextCurrent(const Output &output) const;
|
|
void setViewport(const Output &output) const;
|
|
|
|
bool resetFramebuffer(Output &output);
|
|
void initRenderTarget(Output &output);
|
|
|
|
void prepareRenderFramebuffer(const Output &output) const;
|
|
void renderFramebufferToSurface(Output &output);
|
|
|
|
void presentOnOutput(Output &output, const QRegion &damagedRegion);
|
|
|
|
void removeOutput(DrmOutput *drmOutput);
|
|
void cleanupOutput(Output &output);
|
|
void cleanupFramebuffer(Output &output);
|
|
|
|
DrmBackend *m_backend;
|
|
DrmGpu *m_gpu;
|
|
QVector<Output> m_outputs;
|
|
friend class EglGbmTexture;
|
|
};
|
|
|
|
/**
|
|
* @brief Texture using an EGLImageKHR.
|
|
*/
|
|
class EglGbmTexture : public AbstractEglTexture
|
|
{
|
|
public:
|
|
~EglGbmTexture() override;
|
|
|
|
private:
|
|
friend class EglGbmBackend;
|
|
EglGbmTexture(SceneOpenGLTexture *texture, EglGbmBackend *backend);
|
|
};
|
|
|
|
} // namespace
|
|
|
|
#endif
|