The display manager class. More...

#include <display_manager_gtk4.h>

Inheritance diagram for mediax::gtk4::DisplayManager:

Collaboration diagram for mediax::gtk4::DisplayManager:

Public Member Functions
	DisplayManager (std::string name="")
	Construct a new Display Manager object.

	~DisplayManager ()
	Destroy the Display Manager object.

	DisplayManager (const DisplayManager &)=delete
	Construct a new Display Manager object (deleted)

DisplayManager &	operator= (const DisplayManager &)=delete
	Delete the copy operator.

Status	Initalise (uint32_t width, uint32_t height, bool fullscreen)
	Initalise the display manager.

Status	Initalise () override
	Initalise the display manager.

Resolution	GetResolution () override
	Get the Resolution attribute.

int	GetBytesPerPixel () final
	Get the Bits Per Pixel object.

mediax::rtp::ColourspaceType	GetColourspace () final
	Get the Colourspace object.

Status	DisplayBuffer (uint8_t *frame_buffer, Resolution resolution, std::string text) override
	Buffer must be in the format RGBA.

void	Flush () override
	Flush the framebuffer /dev/fb0.

void	ToggleFullscreen () override
	Toggle Fullscreen.

void	Run () override
	Run the main event loop.

void	Stop () override
	Stop the main loop if there is one.

Public Member Functions inherited from mediax::DisplayManagerBase
	DisplayManagerBase (std::string name="")
	Construct a new Display Manager object.

virtual	~DisplayManagerBase ()=default
	Destroy the Display Manager object.

void	SetResolution (Resolution resolution)
	Set the Resolution object.

std::string	GetName ()
	Get the Name object.

Status	Rescale (uint8_t frame_buffer, void display_buffer, Resolution resolution, int height, int width)
	Rescale the video if needed.

Static Public Attributes
static std::string	text_ = "0x0"
	The text to display.

Static Private Member Functions
static void	Activate (GtkApplication *app, gpointer user_data)
	GTK4 Activate callback.

static void	Destroy (GtkWidget *widget, gpointer data)
	Destroy the GTK4 window.

static void	DrawCallback (GtkDrawingArea area, cairo_t cr, int width, int height, gpointer user_data)
	Refesh the display.

static void	DrawText (unsigned char bitmap, int width, int height, const char text)
	Draw text on the screen.

static gboolean	RenderCallback (GtkGLArea area, GdkGLContext context)
	Render the display.

static void	ResizeCallback (GtkGLArea *area, int width, int height)
	Resize the display.

static void	RealizeCallback (GtkGLArea *area)
	Create the context.

static void	UnrealizeCallback (GtkGLArea *area)
	Unrealize the context.

Private Attributes
bool	initaliased_ = false
	Initalized flag.

Static Private Attributes
static GLuint	texture_
	The frame buffer.

static GLuint	texture2_
	The second texture.

static std::vector< uint8_t >	frame_buffer_
	Frame buffer device.

static int	width_ = kDefaultWidth
	The default width.

static int	height_ = kDefaultHeight
	The default height.

static GtkApplication *	app_
	The GTK4 application.

static GtkWidget *	window_
	The GTK4 window.

static GtkWidget *	drawing_area_
	The drawing area.

static std::mutex	frame_buffer_mutex_
	The mutex for the frame buffer.

static std::vector< uint8_t >	draw_buffer_
	The draw buffer.

static std::vector< uint8_t >	draw_buffer_flip_
	The draw buffer flip.

static GtkWidget *	gl_area_
	The running flag.

static bool	fullscreen_ = false
	The running flag.

static bool	opengl_ = false
	The running flag.

Additional Inherited Members
Data Fields inherited from mediax::DisplayManagerBase
Resolution	last_requested_resolution_ = {0, 0, 0}
	Last requested resolution.

std::vector< uint8_t >	scaled_frame_buffer_
	Scaled frame buffer for resolutions that do not match the display.

std::string	name_
	The name of the display, can be used in the window title if windowing is supported.

Detailed Description

The display manager class.

Member Function Documentation

◆ Activate()

void mediax::gtk4::DisplayManager::Activate	(	GtkApplication *	app,
		gpointer	user_data
	)

staticprivate

GTK4 Activate callback.

Parameters

app
user_data

◆ Destroy()

void mediax::gtk4::DisplayManager::Destroy	(	GtkWidget *	widget,
		gpointer	data
	)

staticprivate

Destroy the GTK4 window.

Parameters

widget
data

◆ DisplayBuffer()

Status mediax::gtk4::DisplayManager::DisplayBuffer	(	uint8_t *	frame_buffer,
		Resolution	resolution,
		std::string	text
	)

overridevirtual

Buffer must be in the format RGBA.

Parameters

frame_buffer	the frame buffer to display
resolution	the resolution of the frame buffer
text	the text to display

Returns: Status

Implements mediax::DisplayManagerBase.

◆ DrawCallback()

void mediax::gtk4::DisplayManager::DrawCallback	(	GtkDrawingArea *	area,
		cairo_t *	cr,
		int	width,
		int	height,
		gpointer	user_data
	)

staticprivate

Refesh the display.

Parameters

area
cr
width
height
user_data

◆ DrawText()

static void mediax::gtk4::DisplayManager::DrawText	(	unsigned char *	bitmap,
		int	width,
		int	height,
		const char *	text
	)

staticprivate

Draw text on the screen.

Parameters

bitmap
width
height
text

◆ Flush()

void mediax::gtk4::DisplayManager::Flush ( )

overridevirtual

Flush the framebuffer /dev/fb0.

Implements mediax::DisplayManagerBase.

◆ GetBytesPerPixel()

int mediax::gtk4::DisplayManager::GetBytesPerPixel ( )

inlinefinalvirtual

Get the Bits Per Pixel object.

Returns: int Always return for for RGB24

Implements mediax::DisplayManagerBase.

◆ GetColourspace()

mediax::rtp::ColourspaceType mediax::gtk4::DisplayManager::GetColourspace ( )

inlinefinalvirtual

Get the Colourspace object.

Returns: mediax::rtp::ColourspaceType

Reimplemented from mediax::DisplayManagerBase.

◆ GetResolution()

Resolution mediax::gtk4::DisplayManager::GetResolution ( )

overridevirtual

Get the Resolution attribute.

Returns: Resolution

Implements mediax::DisplayManagerBase.

◆ Initalise() [1/2]

Status mediax::gtk4::DisplayManager::Initalise ( )

overridevirtual

Initalise the display manager.

Returns: Status

Implements mediax::DisplayManagerBase.

◆ Initalise() [2/2]

Status mediax::gtk4::DisplayManager::Initalise	(	uint32_t	width,
		uint32_t	height,
		bool	fullscreen
	)

Initalise the display manager.

Returns: StatusDisplayManager

◆ operator=()

DisplayManager & mediax::gtk4::DisplayManager::operator= ( const DisplayManager & )

delete

Delete the copy operator.

Returns: DisplayManager&

◆ RealizeCallback()

void mediax::gtk4::DisplayManager::RealizeCallback ( GtkGLArea * area )

staticprivate

Create the context.

Parameters

area

◆ RenderCallback()

gboolean mediax::gtk4::DisplayManager::RenderCallback	(	GtkGLArea *	area,
		GdkGLContext *	context
	)

staticprivate

Render the display.

Parameters

area
context

Returns: gboolean

◆ ResizeCallback()

void mediax::gtk4::DisplayManager::ResizeCallback	(	GtkGLArea *	area,
		int	width,
		int	height
	)

staticprivate

Resize the display.

Parameters

area
width
height

◆ Run()

void mediax::gtk4::DisplayManager::Run ( )

overridevirtual

Run the main event loop.

Implements mediax::DisplayManagerBase.

◆ Stop()

void mediax::gtk4::DisplayManager::Stop ( )

overridevirtual

Stop the main loop if there is one.

Reimplemented from mediax::DisplayManagerBase.

◆ ToggleFullscreen()

void mediax::gtk4::DisplayManager::ToggleFullscreen ( )

overridevirtual

Toggle Fullscreen.

Reimplemented from mediax::DisplayManagerBase.

◆ UnrealizeCallback()

void mediax::gtk4::DisplayManager::UnrealizeCallback ( GtkGLArea * area )

staticprivate

Unrealize the context.

Parameters

area

Field Documentation

◆ app_

GtkApplication * mediax::gtk4::DisplayManager::app_

staticprivate

The GTK4 application.

GTK4 application.

◆ draw_buffer_

std::vector< uint8_t > mediax::gtk4::DisplayManager::draw_buffer_

staticprivate

The draw buffer.

Draw buffer.

◆ draw_buffer_flip_

std::vector< uint8_t > mediax::gtk4::DisplayManager::draw_buffer_flip_

staticprivate

The draw buffer flip.

Draw buffer flip.

◆ drawing_area_

GtkWidget * mediax::gtk4::DisplayManager::drawing_area_

staticprivate

The drawing area.

GTK4 drawing area.

◆ frame_buffer_

std::vector< uint8_t > mediax::gtk4::DisplayManager::frame_buffer_

staticprivate

Frame buffer device.

Static frame buffer.

◆ frame_buffer_mutex_

std::mutex mediax::gtk4::DisplayManager::frame_buffer_mutex_

staticprivate

The mutex for the frame buffer.

Mutex.

◆ gl_area_

GtkWidget * mediax::gtk4::DisplayManager::gl_area_

staticprivate

The running flag.

OpenGL.

◆ height_

int mediax::gtk4::DisplayManager::height_ = kDefaultHeight

staticprivate

The default height.

Initalise height (default)

◆ texture_

GLuint mediax::gtk4::DisplayManager::texture_

staticprivate

The frame buffer.

Texture.

◆ width_

int mediax::gtk4::DisplayManager::width_ = kDefaultWidth

staticprivate

The default width.

Initalise width (default)

◆ window_

GtkWidget * mediax::gtk4::DisplayManager::window_

staticprivate

The GTK4 window.

GTK4 window.

The documentation for this class was generated from the following files:

src/renderer/display_manager_gtk4.h
src/renderer/display_manager_gtk4.cc

Public Member Functions

Static Public Attributes

Static Private Member Functions

Private Attributes

Static Private Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ Activate()

◆ Destroy()

◆ DisplayBuffer()

◆ DrawCallback()

◆ DrawText()

◆ Flush()

◆ GetBytesPerPixel()

◆ GetColourspace()

◆ GetResolution()

◆ Initalise() [1/2]

◆ Initalise() [2/2]

◆ operator=()

◆ RealizeCallback()

◆ RenderCallback()

◆ ResizeCallback()

◆ Run()

◆ Stop()

◆ ToggleFullscreen()

◆ UnrealizeCallback()

Field Documentation

◆ app_

◆ draw_buffer_

◆ draw_buffer_flip_

◆ drawing_area_

◆ frame_buffer_

◆ frame_buffer_mutex_

◆ gl_area_

◆ height_

◆ texture_

◆ width_

◆ window_