scribble/src/displayUpdate.c File Reference

#include <gdk/gdk.h>
#include "displayUpdate.h"
#include "erbusy.h"
#include "ScribbleLog.h"

Go to the source code of this file.

Functions
int	display_update_get_level (void)
int	display_update_reset_level (void)
static gboolean	display_update_during_idle_handling (gpointer data)
gboolean	display_update_request_screen_refresh (int level, gpointer data)
void	display_update_increase_level (int level)
Variables
static int	g_currentLevel = LOWEST_LEVEL

---

Function Documentation

static gboolean display_update_during_idle_handling

(

gpointer

data

)

[static]

callback : called when GTK in idle mode

Parameters:

data

- indicates where the update request came from (DEBUG reasons)

Returns:

0 (to remove the "idle mode" handler)

Definition at line 54 of file displayUpdate.c.

{
    eDmQuality quality = (int) data;

    SB_TIMEDISPLAY("start...,quality=%d",quality);
    erbusy_blink();
    //usleep( 300 * 1000 );
    // full screen update,
    gdk_threads_enter();
    //gdk_flush();
    gdk_flush();
    gdk_threads_leave();

    SB_TIMEDISPLAY("dmDisplay...");
    // full screen update,
    //dmDisplay(dmCmdPriorUrgent, quality);//no wait
    dmDisplay(dmCmdPriorNormal,quality);//work,500ms wait.
    //dmDisplay(dmCmdPriorHigh,quality);doens't work
    erbusy_off();

    SB_TIMEDISPLAY("done.");
    // return FALSE to remove handler
    return FALSE;
}

Here is the call graph for this function:

int display_update_get_level

(

void

)

Definition at line 105 of file displayUpdate.c.

{
    return g_currentLevel;
}

void display_update_increase_level

(

int

level

)

Increase the level value of the screen refresh. Meaning that the screen refresh will only be requested to the displayManager for levels equal or larger then this level value.

Parameters:

level

screen refresh level

Returns:

TRUE on success

Definition at line 116 of file displayUpdate.c.

{
    if (level > g_currentLevel)
    {
        g_currentLevel = level;
    }
}

gboolean display_update_request_screen_refresh	(	int	level,
		gpointer	data
	)

set address of gtk idle callback, where the e-inkt display update is requested

Parameters:

	status	indicates whether or not not used
	data	is quality.see eDmquality in <liberdm/erdm.h> typedef enum { dmQFull = 0, dmQBW, dmQTyping, dmQUndefined } eDmQuality;

Returns:

TRUE on success

Definition at line 80 of file displayUpdate.c.

{
    int     theCurrentLevel = display_update_get_level();
    int     quality = (int) data;

    SB_IPCPRINTF("quality:%d\n",quality);
    if (quality == 0)
    {
        quality = dmQFull;
    }


    if (level >= theCurrentLevel)
    {
        g_idle_add_full(G_PRIORITY_HIGH_IDLE,   
                        display_update_during_idle_handling,
                        (gpointer) quality,
                        NULL);
        //gtk_idle_add(display_update_during_idle_handling, (gpointer) quality);
        //reset the current level
        display_update_reset_level();
    }
    return TRUE;
}

Here is the call graph for this function:

int display_update_reset_level

(

void

)

Definition at line 110 of file displayUpdate.c.

{
    g_currentLevel = LOWEST_LEVEL;
    return g_currentLevel;
}

---

Variable Documentation

int g_currentLevel = LOWEST_LEVEL [static]

Definition at line 40 of file displayUpdate.c.