forked from len0rd/rockbox
Improved code for the splash function: spare some calculation, fix a bug for screens wider then 255 (ipod 5g), fix FS#5775 by displaying complete lines instead of word by word.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11113 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Shachar Liberman
parent
c9d7f76ae5
commit
f5452c0bde
1 changed files with 60 additions and 95 deletions
|
|
@ -25,13 +25,11 @@
|
|||
|
||||
#ifdef HAVE_LCD_BITMAP
|
||||
|
||||
#define SPACE 3 /* pixels between words */
|
||||
#define MAXLETTERS 128 /* 16*8 */
|
||||
#define MAXLINES 10
|
||||
|
||||
#else
|
||||
|
||||
#define SPACE 1 /* one letter space */
|
||||
#define MAXLETTERS 22 /* 11 * 2 */
|
||||
#define MAXLINES 2
|
||||
|
||||
|
|
@ -42,93 +40,80 @@ static void splash(struct screen * screen,
|
|||
{
|
||||
char *next;
|
||||
char *store=NULL;
|
||||
int x=0;
|
||||
int y=0;
|
||||
int x = 0;
|
||||
int w, h;
|
||||
unsigned char splash_buf[MAXLETTERS];
|
||||
unsigned char widths[MAXLINES];
|
||||
int line=0;
|
||||
unsigned short widths[MAXLINES];
|
||||
unsigned char *text = splash_buf;
|
||||
int line = 0, i_line = 0;
|
||||
bool first=true;
|
||||
#ifdef HAVE_LCD_BITMAP
|
||||
int maxw=0;
|
||||
int space;
|
||||
int y;
|
||||
screen->getstringsize(" ", &space, &y);
|
||||
#if LCD_DEPTH > 1
|
||||
unsigned prevbg = LCD_DEFAULT_BG;
|
||||
unsigned prevfg = LCD_DEFAULT_FG;
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifdef HAVE_LCD_CHARCELLS
|
||||
screen->double_height (false);
|
||||
#else
|
||||
screen->double_height (false); /* HAVE_LCD_CHARCELLS */
|
||||
int space = 1;
|
||||
int y = 0;
|
||||
#endif
|
||||
screen->stop_scroll();
|
||||
vsnprintf( splash_buf, sizeof(splash_buf), fmt, ap );
|
||||
va_end( ap );
|
||||
|
||||
if(center) {
|
||||
/* first a pass to measure sizes */
|
||||
next = strtok_r(splash_buf, " ", &store);
|
||||
while (next) {
|
||||
/* measure sizes & concatenates tokenise words into lines. */
|
||||
next = strtok_r(splash_buf, " ", &store);
|
||||
while (next) {
|
||||
#ifdef HAVE_LCD_BITMAP
|
||||
screen->getstringsize(next, &w, &h);
|
||||
screen->getstringsize(next, &w, &h);
|
||||
#else
|
||||
w = strlen(next);
|
||||
h = 1; /* store height in characters */
|
||||
w = strlen(next);
|
||||
h = 1; /* store height in characters */
|
||||
#endif
|
||||
if(!first) {
|
||||
if(x+w> screen->width) {
|
||||
/* Too wide, wrap */
|
||||
y+=h;
|
||||
line++;
|
||||
if((y > (screen->height-h)) || (line > screen->nb_lines))
|
||||
/* STOP */
|
||||
break;
|
||||
x=0;
|
||||
first=true;
|
||||
}
|
||||
if(!first) {
|
||||
if(x + w > screen->width) { /* Too wide, wrap */
|
||||
y += h;
|
||||
line++;
|
||||
x = 0;
|
||||
if((y > (screen->height-h)) || (line > screen->nb_lines))
|
||||
/* STOP */
|
||||
break;
|
||||
}
|
||||
else
|
||||
first = false;
|
||||
|
||||
/* think of it as if the text was written here at position x,y
|
||||
being w pixels/chars wide and h high */
|
||||
|
||||
x += w+SPACE;
|
||||
widths[line]=x-SPACE; /* don't count the trailing space */
|
||||
#ifdef HAVE_LCD_BITMAP
|
||||
/* store the widest line */
|
||||
if(widths[line]>maxw)
|
||||
maxw = widths[line];
|
||||
#endif
|
||||
next = strtok_r(NULL, " ", &store);
|
||||
next[-1] = ' '; /* re-concatenate string */
|
||||
}
|
||||
else
|
||||
first = false;
|
||||
|
||||
x += w + space;
|
||||
widths[line] = x - space; /* don't count the trailing space */
|
||||
#ifdef HAVE_LCD_BITMAP
|
||||
/* Start displaying the message at position y. The reason for the
|
||||
added h here is that it isn't added until the end of lines in the
|
||||
loop above and we always break the loop in the middle of a line. */
|
||||
y = (screen->height - (y+h) )/2;
|
||||
/* store the widest line */
|
||||
if(widths[line]>maxw)
|
||||
maxw = widths[line];
|
||||
#endif
|
||||
next = strtok_r(NULL, " ", &store);
|
||||
}
|
||||
|
||||
if(center) {
|
||||
#ifdef HAVE_LCD_BITMAP
|
||||
/* Start displaying the message at position y. */
|
||||
y = (screen->height - y)/2;
|
||||
#else
|
||||
y = 0; /* vertical center on 2 lines would be silly */
|
||||
#endif
|
||||
first=true;
|
||||
} else
|
||||
y = 0;
|
||||
|
||||
/* Now recreate the string again since the strtok_r() above has ruined
|
||||
the one we already have! Here's room for improvements! */
|
||||
vsnprintf( splash_buf, sizeof(splash_buf), fmt, ap );
|
||||
}
|
||||
va_end( ap );
|
||||
|
||||
if(center)
|
||||
{
|
||||
x = (screen->width-widths[0])/2;
|
||||
if(x < 0)
|
||||
x = 0;
|
||||
}
|
||||
|
||||
#ifdef HAVE_LCD_BITMAP
|
||||
/* If we center the display, then just clear the box we need and put
|
||||
a nice little frame and put the text in there! */
|
||||
#ifdef HAVE_LCD_BITMAP
|
||||
if(center && (y > 2)) {
|
||||
int xx = (screen->width-maxw)/2 - 2;
|
||||
int xx = (screen->width - maxw)/2 - 2;
|
||||
/* The new graphics routines handle clipping, so no need to check */
|
||||
#if LCD_DEPTH > 1
|
||||
if(screen->depth>1) {
|
||||
|
|
@ -146,43 +131,23 @@ static void splash(struct screen * screen,
|
|||
else
|
||||
#endif
|
||||
screen->clear_display();
|
||||
line=0;
|
||||
next = strtok_r(splash_buf, " ", &store);
|
||||
while (next) {
|
||||
|
||||
/* print the message to screen */
|
||||
while(line-- >= 0) {
|
||||
if (center) {
|
||||
x = (screen->width-widths[i_line++])/2;
|
||||
if(x < 0)
|
||||
x = 0;
|
||||
} else
|
||||
x = 0;
|
||||
#ifdef HAVE_LCD_BITMAP
|
||||
screen->getstringsize(next, &w, &h);
|
||||
screen->putsxy(x, y, text);
|
||||
#else
|
||||
w = strlen(next);
|
||||
h = 1;
|
||||
screen->puts(x, y, text);
|
||||
#endif
|
||||
if(!first) {
|
||||
if(x+w> screen->width) {
|
||||
/* too wide */
|
||||
y+=h;
|
||||
line++; /* goto next line */
|
||||
first=true;
|
||||
if(y > (screen->height-h))
|
||||
/* STOP */
|
||||
break;
|
||||
if(center) {
|
||||
x = (screen->width-widths[line])/2;
|
||||
if(x < 0)
|
||||
x = 0;
|
||||
}
|
||||
else
|
||||
x=0;
|
||||
}
|
||||
text += strlen(text) + 1;
|
||||
y +=h;
|
||||
}
|
||||
else
|
||||
first=false;
|
||||
#ifdef HAVE_LCD_BITMAP
|
||||
screen->putsxy(x, y, next);
|
||||
#else
|
||||
screen->puts(x, y, next);
|
||||
#endif
|
||||
x += w+SPACE; /* pixels space! */
|
||||
next = strtok_r(NULL, " ", &store);
|
||||
}
|
||||
|
||||
#if defined(HAVE_LCD_BITMAP) && (LCD_DEPTH > 1)
|
||||
if(screen->depth > 1) {
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue