uwac-window.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <assert.h>
#include <sys/mman.h>
#include <errno.h>
#include "uwac-priv.h"
#include "uwac-utils.h"
#include "uwac-os.h"
#include <uwac/config.h>

Macros
#define	UWAC_INITIAL_BUFFERS   3

Functions
static int	bppFromShmFormat (enum wl_shm_format format)
static void	buffer_release (void *data, struct wl_buffer *buffer)
static void	UwacWindowDestroyBuffers (UwacWindow *w)
static int	UwacWindowShmAllocBuffers (UwacWindow *w, int64_t nbuffers, int64_t allocSize, uint32_t width, uint32_t height, enum wl_shm_format format)
static void	xdg_handle_toplevel_configure (void *data, struct xdg_toplevel *xdg_toplevel, int32_t width, int32_t height, struct wl_array *states)
static void	xdg_handle_toplevel_close (void *data, struct xdg_toplevel *xdg_toplevel)
static void	xdg_handle_surface_configure (void *data, struct xdg_surface *xdg_surface, uint32_t serial)
static void	shell_ping (void *data, struct wl_shell_surface *surface, uint32_t serial)
static void	shell_configure (void *data, struct wl_shell_surface *surface, uint32_t edges, int32_t width, int32_t height)
static void	shell_popup_done (void *data, struct wl_shell_surface *surface)
static UwacBuffer *	UwacWindowFindFreeBuffer (UwacWindow *w, ssize_t *index)
static UwacReturnCode	UwacWindowSetDecorations (UwacWindow *w)
UwacWindow *	UwacCreateWindowShm (UwacDisplay *display, uint32_t width, uint32_t height, enum wl_shm_format format)
UwacReturnCode	UwacDestroyWindow (UwacWindow **pwindow)
UwacReturnCode	UwacWindowSetOpaqueRegion (UwacWindow *window, uint32_t x, uint32_t y, uint32_t width, uint32_t height)
UwacReturnCode	UwacWindowSetInputRegion (UwacWindow *window, uint32_t x, uint32_t y, uint32_t width, uint32_t height)
void *	UwacWindowGetDrawingBuffer (UwacWindow *window)
static void	frame_done_cb (void *data, struct wl_callback *callback, uint32_t time)
static void	damage_surface (UwacWindow *window, UwacBuffer *buffer, int scale)
static void	UwacSubmitBufferPtr (UwacWindow *window, UwacBuffer *buffer)
UwacReturnCode	UwacWindowAddDamage (UwacWindow *window, uint32_t x, uint32_t y, uint32_t width, uint32_t height)
UwacReturnCode	UwacWindowGetDrawingBufferGeometry (UwacWindow *window, UwacSize *geometry, size_t *stride)
UwacReturnCode	UwacWindowSubmitBuffer (UwacWindow *window, bool copyContentForNextFrame)
UwacReturnCode	UwacWindowGetGeometry (UwacWindow *window, UwacSize *geometry)
UwacReturnCode	UwacWindowSetFullscreenState (UwacWindow *window, UwacOutput *output, bool isFullscreen)
void	UwacWindowSetTitle (UwacWindow *window, const char *name)
void	UwacWindowSetAppId (UwacWindow *window, const char *app_id)

Variables
static const struct wl_buffer_listener	buffer_listener = { buffer_release }
static const struct xdg_toplevel_listener	xdg_toplevel_listener
static const struct xdg_surface_listener	xdg_surface_listener
static const struct wl_shell_surface_listener	shell_listener
static const struct wl_callback_listener	frame_listener = { frame_done_cb }

Macro Definition Documentation

UWAC_INITIAL_BUFFERS

#define UWAC_INITIAL_BUFFERS   3

Function Documentation

bppFromShmFormat()

static int bppFromShmFormat ( enum wl_shm_format  format )

static

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buffer_release()

static void buffer_release ( void *  data, struct wl_buffer *  buffer  )

static

damage_surface()

static void damage_surface ( UwacWindow *  window, UwacBuffer *  buffer, int  scale  )

static

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frame_done_cb()

static void frame_done_cb ( void *  data, struct wl_callback *  callback, uint32_t  time  )

static

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shell_configure()

static void shell_configure ( void *  data, struct wl_shell_surface *  surface, uint32_t  edges, int32_t  width, int32_t  height  )

static

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shell_ping()

static void shell_ping ( void *  data, struct wl_shell_surface *  surface, uint32_t  serial  )

static

shell_popup_done()

static void shell_popup_done ( void *  data, struct wl_shell_surface *  surface  )

static

UwacCreateWindowShm()

UwacWindow* UwacCreateWindowShm	(	UwacDisplay *	display,
		uint32_t	width,
		uint32_t	height,
		enum wl_shm_format	format
	)

    creates a window using a SHM surface

Parameters

display	the display to attach the window to
width	the width of the window
height	the heigh of the window
format	format to use for the SHM surface

Returns

the created UwacWindow, NULL if something failed (use UwacDisplayGetLastError() to know more about this)

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UwacDestroyWindow()

UwacReturnCode UwacDestroyWindow

(

UwacWindow **

window

)

 destroys the corresponding UwacWindow

Parameters

window

a pointer on the UwacWindow to destroy

Returns

if the operation completed successfully

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UwacSubmitBufferPtr()

static void UwacSubmitBufferPtr ( UwacWindow *  window, UwacBuffer *  buffer  )

static

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UwacWindowAddDamage()

UwacReturnCode UwacWindowAddDamage	(	UwacWindow *	window,
		uint32_t	x,
		uint32_t	y,
		uint32_t	width,
		uint32_t	height
	)

 sets a rectangle as dirty for the next frame of a window

Parameters

window	the UwacWindow
x	left coordinate
y	top coordinate
width	the width of the dirty rectangle
height	the height of the dirty rectangle

Returns

UWAC_SUCCESS on success, an Uwac error otherwise

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UwacWindowDestroyBuffers()

static void UwacWindowDestroyBuffers ( UwacWindow *  w )

static

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UwacWindowFindFreeBuffer()

static UwacBuffer* UwacWindowFindFreeBuffer ( UwacWindow *  w, ssize_t *  index  )

static

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UwacWindowGetDrawingBuffer()

void* UwacWindowGetDrawingBuffer

(

UwacWindow *

window

)

 retrieves a pointer on the current window content to draw a frame

Parameters

window

the UwacWindow

Returns

a pointer on the current window content

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UwacWindowGetDrawingBufferGeometry()

UwacReturnCode UwacWindowGetDrawingBufferGeometry	(	UwacWindow *	window,
		UwacSize *	geometry,
		size_t *	stride
	)

 returns the geometry of the given UwacWindow buffer

Parameters

window	the UwacWindow
geometry	the geometry to fill
stride	the length of a buffer line in bytes

Returns

UWAC_SUCCESS on success, an Uwac error otherwise

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UwacWindowGetGeometry()

UwacReturnCode UwacWindowGetGeometry	(	UwacWindow *	window,
		UwacSize *	geometry
	)

 returns the geometry of the given UwacWindows

Parameters

window	the UwacWindow
geometry	the geometry to fill

Returns

UWAC_SUCCESS on success, an Uwac error otherwise

UwacWindowSetAppId()

void UwacWindowSetAppId	(	UwacWindow *	window,
		const char *	app_id
	)

 Sets the app id of the UwacWindow

Parameters

window	the UwacWindow
app_id	app id

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UwacWindowSetDecorations()

static UwacReturnCode UwacWindowSetDecorations ( UwacWindow *  w )

static

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UwacWindowSetFullscreenState()

UwacReturnCode UwacWindowSetFullscreenState	(	UwacWindow *	window,
		UwacOutput *	output,
		bool	isFullscreen
	)

 Sets or unset the fact that the window is set fullscreen. After this call the
 application should get prepared to receive a configure event. The output is used
 only when going fullscreen, it is optional and not used when exiting fullscreen.

Parameters

window	the UwacWindow
output	an optional UwacOutput to put the window fullscreen on
isFullscreen	set or unset fullscreen

Returns

UWAC_SUCCESS if the operation was a success

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UwacWindowSetInputRegion()

UwacReturnCode UwacWindowSetInputRegion	(	UwacWindow *	window,
		uint32_t	x,
		uint32_t	y,
		uint32_t	width,
		uint32_t	height
	)

 Sets the region of the window that can trigger input events

Parameters

window	the UwacWindow
x	The horizontal coordinate in pixels
y	The vertical coordinate in pixels
width	The width of the region
height	The height of the region

Returns

UWAC_SUCCESS on success, an error otherwise

UwacWindowSetOpaqueRegion()

UwacReturnCode UwacWindowSetOpaqueRegion	(	UwacWindow *	window,
		uint32_t	x,
		uint32_t	y,
		uint32_t	width,
		uint32_t	height
	)

 Sets the region that should be considered opaque to the compositor.

Parameters

window	the UwacWindow
x	The horizontal coordinate in pixels
y	The vertical coordinate in pixels
width	The width of the region
height	The height of the region

Returns

UWAC_SUCCESS on success, an error otherwise

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UwacWindowSetTitle()

void UwacWindowSetTitle	(	UwacWindow *	window,
		const char *	name
	)

 When possible (depending on the shell) sets the title of the UwacWindow

Parameters

window	the UwacWindow
name	title

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UwacWindowShmAllocBuffers()

int UwacWindowShmAllocBuffers ( UwacWindow *  w, int64_t  nbuffers, int64_t  allocSize, uint32_t  width, uint32_t  height, enum wl_shm_format  format  )

static

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UwacWindowSubmitBuffer()

UwacReturnCode UwacWindowSubmitBuffer	(	UwacWindow *	window,
		bool	copyContentForNextFrame
	)

    Sends a frame to the compositor with the content of the drawing buffer

Parameters

window	the UwacWindow to refresh
copyContentForNextFrame	if true the content to display is copied in the next drawing buffer

Returns

UWAC_SUCCESS if the operation was successful

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xdg_handle_surface_configure()

static void xdg_handle_surface_configure ( void *  data, struct xdg_surface *  xdg_surface, uint32_t  serial  )

static

xdg_handle_toplevel_close()

static void xdg_handle_toplevel_close ( void *  data, struct xdg_toplevel *  xdg_toplevel  )

static

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xdg_handle_toplevel_configure()

static void xdg_handle_toplevel_configure ( void *  data, struct xdg_toplevel *  xdg_toplevel, int32_t  width, int32_t  height, struct wl_array *  states  )

static

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Variable Documentation

buffer_listener

const struct wl_buffer_listener buffer_listener = { buffer_release }

static

frame_listener

const struct wl_callback_listener frame_listener = { frame_done_cb }

static

shell_listener

const struct wl_shell_surface_listener shell_listener

static

Initial value:

= { shell_ping, shell_configure,
                                                                     shell_popup_done }

xdg_surface_listener

const struct xdg_surface_listener xdg_surface_listener

static

Initial value:

= {
        .configure = xdg_handle_surface_configure,
}

xdg_toplevel_listener

const struct xdg_toplevel_listener xdg_toplevel_listener

static

Initial value:

= {
        xdg_handle_toplevel_configure,
        xdg_handle_toplevel_close,
}