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LCD bitmap driver code consolidation from FS#4817:

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Move text-drawing code into firmware-drivers/lcd-bitmap-common.c, included by the various driver files.
Add new static function LCDFN(putsxyofs_style) to draw styled text, and use it in both LCDFN(puts_style_offset) and LCDFN(scroll_fn).
Merge lcd_gradient_rect functions, with new function containing simplified code for drawing one line of a multi-line gradient.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22289 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Andrew Mahone 2009-08-13 08:02:29 +00:00
parent ce00e283b5
commit e04f95eab9
6 changed files with 336 additions and 1236 deletions
Download patch file Download diff file Expand all files Collapse all files

347
firmware/drivers/lcd-16bit.c
View file

@ -638,70 +638,6 @@ void lcd_fillrect(int x, int y, int width, int height)
while (dst < dst_end);
}
/* Fill a rectangle with a gradient */
static void lcd_gradient_rect(int x1, int x2, int y, int h)
{
int old_pattern = current_vp->fg_pattern;
if (h == 0) return;
int h_r = RGB_UNPACK_RED(current_vp->lss_pattern) << 16;
int h_b = RGB_UNPACK_BLUE(current_vp->lss_pattern) << 16;
int h_g = RGB_UNPACK_GREEN(current_vp->lss_pattern) << 16;
int rstep = (h_r - ((signed)RGB_UNPACK_RED(current_vp->lse_pattern) << 16)) / h;
int gstep = (h_g - ((signed)RGB_UNPACK_GREEN(current_vp->lse_pattern) << 16)) / h;
int bstep = (h_b - ((signed)RGB_UNPACK_BLUE(current_vp->lse_pattern) << 16)) / h;
int count;
current_vp->fg_pattern = current_vp->lss_pattern;
for(count = 0; count < h; count++) {
lcd_hline(x1, x2, y + count);
h_r -= rstep;
h_g -= gstep;
h_b -= bstep;
current_vp->fg_pattern = LCD_RGBPACK(h_r >> 16, h_g >> 16, h_b >> 16);
}
current_vp->fg_pattern = old_pattern;
}
#define H_COLOR(lss, lse, cur_line, max_line) \
(((lse) - (lss)) * (cur_line) / (max_line) + (lss))
/* Fill a rectangle with a gradient for scrolling line. To draw a gradient that
covers several lines, we need to know how many lines will be covered
(the num_lines arg), and which one is the current line within the selection
(the cur_line arg). */
static void lcd_gradient_rect_scroll(int x1, int x2, int y, int h,
unsigned char num_lines, unsigned char cur_line)
{
if (h == 0 || num_lines == 0) return;
unsigned tmp_lss = current_vp->lss_pattern;
unsigned tmp_lse = current_vp->lse_pattern;
int lss_r = (signed)RGB_UNPACK_RED(current_vp->lss_pattern);
int lss_b = (signed)RGB_UNPACK_BLUE(current_vp->lss_pattern);
int lss_g = (signed)RGB_UNPACK_GREEN(current_vp->lss_pattern);
int lse_r = (signed)RGB_UNPACK_RED(current_vp->lse_pattern);
int lse_b = (signed)RGB_UNPACK_BLUE(current_vp->lse_pattern);
int lse_g = (signed)RGB_UNPACK_GREEN(current_vp->lse_pattern);
int h_r = H_COLOR(lss_r, lse_r, cur_line, num_lines);
int h_g = H_COLOR(lss_g, lse_g, cur_line, num_lines);
int h_b = H_COLOR(lss_b, lse_b, cur_line, num_lines);
lcd_set_selector_start(LCD_RGBPACK(h_r, h_g, h_b));
int l_r = H_COLOR(lss_r, lse_r, cur_line+1, num_lines);
int l_g = H_COLOR(lss_g, lse_g, cur_line+1, num_lines);
int l_b = H_COLOR(lss_b, lse_b, cur_line+1, num_lines);
lcd_set_selector_end(LCD_RGBPACK(l_r, l_g, l_b));
lcd_gradient_rect(x1, x2, y, h);
current_vp->lss_pattern = tmp_lss;
current_vp->lse_pattern = tmp_lse;
}
/* About Rockbox' internal monochrome bitmap format:
*
* A bitmap contains one bit for every pixel that defines if that pixel is
@ -977,285 +913,4 @@ void lcd_bitmap_transparent(const fb_data *src, int x, int y,
lcd_bitmap_transparent_part(src, 0, 0, width, x, y, width, height);
}
/* put a string at a given pixel position, skipping first ofs pixel columns */
static void lcd_putsxyofs(int x, int y, int ofs, const unsigned char *str)
{
unsigned short ch;
unsigned short *ucs;
struct font* pf = font_get(current_vp->font);
ucs = bidi_l2v(str, 1);
while ((ch = *ucs++) != 0 && x < current_vp->width)
{
int width;
const unsigned char *bits;
/* get proportional width and glyph bits */
width = font_get_width(pf,ch);
if (ofs > width)
{
ofs -= width;
continue;
}
bits = font_get_bits(pf, ch);
lcd_mono_bitmap_part(bits, ofs, 0, width, x, y, width - ofs, pf->height);
x += width - ofs;
ofs = 0;
}
}
/* put a string at a given pixel position */
void lcd_putsxy(int x, int y, const unsigned char *str)
{
lcd_putsxyofs(x, y, 0, str);
}
/*** line oriented text output ***/
/* put a string at a given char position */
void lcd_puts(int x, int y, const unsigned char *str)
{
lcd_puts_style_offset(x, y, str, STYLE_DEFAULT, 0);
}
void lcd_puts_style(int x, int y, const unsigned char *str, int style)
{
lcd_puts_style_offset(x, y, str, style, 0);
}
void lcd_puts_offset(int x, int y, const unsigned char *str, int offset)
{
lcd_puts_style_offset(x, y, str, STYLE_DEFAULT, offset);
}
/* put a string at a given char position, style, and pixel position,
* skipping first offset pixel columns */
void lcd_puts_style_offset(int x, int y, const unsigned char *str, int style,
int offset)
{
int xpos,ypos,w,h,xrect;
int lastmode = current_vp->drawmode;
int oldfgcolor = current_vp->fg_pattern;
int oldbgcolor = current_vp->bg_pattern;
/* make sure scrolling is turned off on the line we are updating */
lcd_scroll_stop_line(current_vp, y);
if(!str || !str[0])
return;
lcd_getstringsize(str, &w, &h);
xpos = x*w / utf8length(str);
ypos = y*h;
current_vp->drawmode = (style & STYLE_INVERT) ?
(DRMODE_SOLID|DRMODE_INVERSEVID) : DRMODE_SOLID;
if (style & STYLE_COLORED) {
if (current_vp->drawmode == DRMODE_SOLID)
current_vp->fg_pattern = style & STYLE_COLOR_MASK;
else
current_vp->bg_pattern = style & STYLE_COLOR_MASK;
}
current_vp->drawmode ^= DRMODE_INVERSEVID;
xrect = xpos + MAX(w - offset, 0);
if (style & STYLE_GRADIENT) {
current_vp->drawmode = DRMODE_FG;
if (CURLN_UNPACK(style) == 0)
lcd_gradient_rect(xpos, current_vp->width, ypos, h*NUMLN_UNPACK(style));
current_vp->fg_pattern = current_vp->lst_pattern;
}
else if (style & STYLE_COLORBAR) {
current_vp->drawmode = DRMODE_FG;
current_vp->fg_pattern = current_vp->lss_pattern;
lcd_fillrect(xpos, ypos, current_vp->width - xpos, h);
current_vp->fg_pattern = current_vp->lst_pattern;
}
else {
lcd_fillrect(xrect, ypos, current_vp->width - xrect, h);
current_vp->drawmode = (style & STYLE_INVERT) ?
(DRMODE_SOLID|DRMODE_INVERSEVID) : DRMODE_SOLID;
}
lcd_putsxyofs(xpos, ypos, offset, str);
current_vp->drawmode = lastmode;
current_vp->fg_pattern = oldfgcolor;
current_vp->bg_pattern = oldbgcolor;
}
/*** scrolling ***/
void lcd_puts_scroll(int x, int y, const unsigned char *string)
{
lcd_puts_scroll_style(x, y, string, STYLE_DEFAULT);
}
void lcd_puts_scroll_style(int x, int y, const unsigned char *string, int style)
{
lcd_puts_scroll_style_offset(x, y, string, style, 0);
}
void lcd_puts_scroll_offset(int x, int y, const unsigned char *string, int offset)
{
lcd_puts_scroll_style_offset(x, y, string, STYLE_DEFAULT, offset);
}
/* Initialise a scrolling line at (x,y) in current viewport */
void lcd_puts_scroll_style_offset(int x, int y, const unsigned char *string,
int style, int offset)
{
struct scrollinfo* s;
int w, h;
if ((unsigned)y >= (unsigned)current_vp->height)
return;
/* remove any previously scrolling line at the same location */
lcd_scroll_stop_line(current_vp, y);
if (lcd_scroll_info.lines >= LCD_SCROLLABLE_LINES) return;
s = &lcd_scroll_info.scroll[lcd_scroll_info.lines];
s->start_tick = current_tick + lcd_scroll_info.delay;
s->style = style;
lcd_puts_style_offset(x,y,string,style,offset);
lcd_getstringsize(string, &w, &h);
if (current_vp->width - x * 8 < w) {
/* prepare scroll line */
char *end;
memset(s->line, 0, sizeof s->line);
strcpy(s->line, string);
/* get width */
s->width = lcd_getstringsize(s->line, &w, &h);
/* scroll bidirectional or forward only depending on the string
width */
if ( lcd_scroll_info.bidir_limit ) {
s->bidir = s->width < (current_vp->width) *
(100 + lcd_scroll_info.bidir_limit) / 100;
}
else
s->bidir = false;
if (!s->bidir) { /* add spaces if scrolling in the round */
strcat(s->line, " ");
/* get new width incl. spaces */
s->width = lcd_getstringsize(s->line, &w, &h);
}
end = strchr(s->line, '\0');
strlcpy(end, string, current_vp->width/2);
s->vp = current_vp;
s->y = y;
s->len = utf8length(string);
s->offset = offset;
s->startx = x * s->width / s->len;
s->backward = false;
lcd_scroll_info.lines++;
}
}
void lcd_scroll_fn(void)
{
struct font* pf;
struct scrollinfo* s;
int index;
int xpos, ypos;
int lastmode;
unsigned old_fgcolor;
unsigned old_bgcolor;
struct viewport* old_vp = current_vp;
for ( index = 0; index < lcd_scroll_info.lines; index++ ) {
s = &lcd_scroll_info.scroll[index];
/* check pause */
if (TIME_BEFORE(current_tick, s->start_tick))
continue;
lcd_set_viewport(s->vp);
old_fgcolor = current_vp->fg_pattern;
old_bgcolor = current_vp->bg_pattern;
if (s->style&STYLE_COLORED) {
if (s->style&STYLE_MODE_MASK) {
current_vp->fg_pattern = old_fgcolor;
current_vp->bg_pattern = s->style&STYLE_COLOR_MASK;
}
else {
current_vp->fg_pattern = s->style&STYLE_COLOR_MASK;
current_vp->bg_pattern = old_bgcolor;
}
}
if (s->backward)
s->offset -= lcd_scroll_info.step;
else
s->offset += lcd_scroll_info.step;
pf = font_get(current_vp->font);
xpos = s->startx;
ypos = s->y * pf->height;
if (s->bidir) { /* scroll bidirectional */
if (s->offset <= 0) {
/* at beginning of line */
s->offset = 0;
s->backward = false;
s->start_tick = current_tick + lcd_scroll_info.delay * 2;
}
if (s->offset >= s->width - (current_vp->width - xpos)) {
/* at end of line */
s->offset = s->width - (current_vp->width - xpos);
s->backward = true;
s->start_tick = current_tick + lcd_scroll_info.delay * 2;
}
}
else {
/* scroll forward the whole time */
if (s->offset >= s->width)
s->offset %= s->width;
}
lastmode = current_vp->drawmode;
switch (s->style&STYLE_MODE_MASK) {
case STYLE_INVERT:
current_vp->drawmode = DRMODE_SOLID|DRMODE_INVERSEVID;
break;
case STYLE_COLORBAR:
/* Solid colour line selector */
current_vp->drawmode = DRMODE_FG;
current_vp->fg_pattern = current_vp->lss_pattern;
lcd_fillrect(xpos, ypos, current_vp->width - xpos, pf->height);
current_vp->fg_pattern = current_vp->lst_pattern;
break;
case STYLE_GRADIENT:
/* Gradient line selector */
current_vp->drawmode = DRMODE_FG;
lcd_gradient_rect_scroll(xpos, current_vp->width, ypos, (signed)pf->height,
NUMLN_UNPACK(s->style),
CURLN_UNPACK(s->style));
current_vp->fg_pattern = current_vp->lst_pattern;
break;
default:
current_vp->drawmode = DRMODE_SOLID;
break;
}
lcd_putsxyofs(xpos, ypos, s->offset, s->line);
current_vp->drawmode = lastmode;
current_vp->fg_pattern = old_fgcolor;
current_vp->bg_pattern = old_bgcolor;
lcd_update_viewport_rect(xpos, ypos, current_vp->width - xpos, pf->height);
}
lcd_set_viewport(old_vp);
}
#include "lcd-bitmap-common.c"

224
firmware/drivers/lcd-1bit-vert.c
View file

@ -692,226 +692,4 @@ void LCDFN(bitmap)(const unsigned char *src, int x, int y, int width,
LCDFN(bitmap_part)(src, 0, 0, width, x, y, width, height);
}
/* put a string at a given pixel position, skipping first ofs pixel columns */
static void LCDFN(putsxyofs)(int x, int y, int ofs, const unsigned char *str)
{
unsigned short ch;
unsigned short *ucs;
struct font* pf = font_get(current_vp->font);
ucs = bidi_l2v(str, 1);
while ((ch = *ucs++) != 0 && x < current_vp->width)
{
int width;
const unsigned char *bits;
/* get proportional width and glyph bits */
width = font_get_width(pf, ch);
if (ofs > width)
{
ofs -= width;
continue;
}
bits = font_get_bits(pf, ch);
LCDFN(mono_bitmap_part)(bits, ofs, 0, width, x, y, width - ofs,
pf->height);
x += width - ofs;
ofs = 0;
}
}
/* put a string at a given pixel position */
void LCDFN(putsxy)(int x, int y, const unsigned char *str)
{
LCDFN(putsxyofs)(x, y, 0, str);
}
/*** Line oriented text output ***/
/* put a string at a given char position */
void LCDFN(puts)(int x, int y, const unsigned char *str)
{
LCDFN(puts_style_offset)(x, y, str, STYLE_DEFAULT, 0);
}
void LCDFN(puts_style)(int x, int y, const unsigned char *str, int style)
{
LCDFN(puts_style_offset)(x, y, str, style, 0);
}
void LCDFN(puts_offset)(int x, int y, const unsigned char *str, int offset)
{
LCDFN(puts_style_offset)(x, y, str, STYLE_DEFAULT, offset);
}
/* put a string at a given char position, style, and pixel position,
* skipping first offset pixel columns */
void LCDFN(puts_style_offset)(int x, int y, const unsigned char *str,
int style, int offset)
{
int xpos,ypos,w,h,xrect;
int lastmode = current_vp->drawmode;
/* make sure scrolling is turned off on the line we are updating */
LCDFN(scroll_stop_line)(current_vp, y);
if(!str || !str[0])
return;
LCDFN(getstringsize)(str, &w, &h);
xpos = x*w / utf8length(str);
ypos = y*h;
current_vp->drawmode = (style & STYLE_INVERT) ?
(DRMODE_SOLID|DRMODE_INVERSEVID) : DRMODE_SOLID;
LCDFN(putsxyofs)(xpos, ypos, offset, str);
current_vp->drawmode ^= DRMODE_INVERSEVID;
xrect = xpos + MAX(w - offset, 0);
LCDFN(fillrect)(xrect, ypos, current_vp->width - xrect, h);
current_vp->drawmode = lastmode;
}
/*** scrolling ***/
void LCDFN(puts_scroll)(int x, int y, const unsigned char *string)
{
LCDFN(puts_scroll_style)(x, y, string, STYLE_DEFAULT);
}
void LCDFN(puts_scroll_style)(int x, int y, const unsigned char *string,
int style)
{
LCDFN(puts_scroll_style_offset)(x, y, string, style, 0);
}
void LCDFN(puts_scroll_offset)(int x, int y, const unsigned char *string,
int offset)
{
LCDFN(puts_scroll_style_offset)(x, y, string, STYLE_DEFAULT, offset);
}
void LCDFN(puts_scroll_style_offset)(int x, int y, const unsigned char *string,
int style, int offset)
{
struct scrollinfo* s;
int w, h;
if ((unsigned)y >= (unsigned)current_vp->height)
return;
/* remove any previously scrolling line at the same location */
LCDFN(scroll_stop_line)(current_vp, y);
if (LCDFN(scroll_info.lines) >= LCDM(SCROLLABLE_LINES)) return;
s = &LCDFN(scroll_info).scroll[LCDFN(scroll_info).lines];
s->start_tick = current_tick + LCDFN(scroll_info).delay;
s->style = style;
if (style & STYLE_INVERT) {
LCDFN(puts_style_offset)(x,y,string,STYLE_INVERT,offset);
}
else
LCDFN(puts_offset)(x,y,string,offset);
LCDFN(getstringsize)(string, &w, &h);
if (current_vp->width - x * 8 < w) {
/* prepare scroll line */
char *end;
memset(s->line, 0, sizeof s->line);
strcpy(s->line, string);
/* get width */
s->width = LCDFN(getstringsize)(s->line, &w, &h);
/* scroll bidirectional or forward only depending on the string
width */
if ( LCDFN(scroll_info).bidir_limit ) {
s->bidir = s->width < (current_vp->width) *
(100 + LCDFN(scroll_info).bidir_limit) / 100;
}
else
s->bidir = false;
if (!s->bidir) { /* add spaces if scrolling in the round */
strcat(s->line, " ");
/* get new width incl. spaces */
s->width = LCDFN(getstringsize)(s->line, &w, &h);
}
end = strchr(s->line, '\0');
strlcpy(end, string, current_vp->width/2);
s->vp = current_vp;
s->y = y;
s->len = utf8length(string);
s->offset = offset;
s->startx = x * s->width / s->len;
s->backward = false;
LCDFN(scroll_info).lines++;
}
}
void LCDFN(scroll_fn)(void)
{
struct font* pf;
struct scrollinfo* s;
int index;
int xpos, ypos;
int lastmode;
struct viewport* old_vp = current_vp;
for ( index = 0; index < LCDFN(scroll_info).lines; index++ ) {
s = &LCDFN(scroll_info).scroll[index];
/* check pause */
if (TIME_BEFORE(current_tick, s->start_tick))
continue;
LCDFN(set_viewport)(s->vp);
if (s->backward)
s->offset -= LCDFN(scroll_info).step;
else
s->offset += LCDFN(scroll_info).step;
pf = font_get(current_vp->font);
xpos = s->startx;
ypos = s->y * pf->height;
if (s->bidir) { /* scroll bidirectional */
if (s->offset <= 0) {
/* at beginning of line */
s->offset = 0;
s->backward = false;
s->start_tick = current_tick + LCDFN(scroll_info).delay * 2;
}
if (s->offset >= s->width - (current_vp->width - xpos)) {
/* at end of line */
s->offset = s->width - (current_vp->width - xpos);
s->backward = true;
s->start_tick = current_tick + LCDFN(scroll_info).delay * 2;
}
}
else {
/* scroll forward the whole time */
if (s->offset >= s->width)
s->offset %= s->width;
}
lastmode = current_vp->drawmode;
current_vp->drawmode = (s->style&STYLE_INVERT) ?
(DRMODE_SOLID|DRMODE_INVERSEVID) : DRMODE_SOLID;
LCDFN(putsxyofs)(xpos, ypos, s->offset, s->line);
current_vp->drawmode = lastmode;
LCDFN(update_viewport_rect)(xpos, ypos, current_vp->width - xpos, pf->height);
}
LCDFN(set_viewport)(old_vp);
}
#include "lcd-bitmap-common.c"

221
firmware/drivers/lcd-2bit-horz.c
View file

@ -956,223 +956,4 @@ void lcd_bitmap(const unsigned char *src, int x, int y, int width, int height)
lcd_bitmap_part(src, 0, 0, width, x, y, width, height);
}
/* put a string at a given pixel position, skipping first ofs pixel columns */
static void lcd_putsxyofs(int x, int y, int ofs, const unsigned char *str)
{
unsigned short ch;
unsigned short *ucs;
struct font* pf = font_get(current_vp->font);
ucs = bidi_l2v(str, 1);
while ((ch = *ucs++) != 0 && x < current_vp->width)
{
int width;
const unsigned char *bits;
/* get proportional width and glyph bits */
width = font_get_width(pf,ch);
if (ofs > width)
{
ofs -= width;
continue;
}
bits = font_get_bits(pf, ch);
lcd_mono_bitmap_part(bits, ofs, 0, width, x, y, width - ofs,
pf->height);
x += width - ofs;
ofs = 0;
}
}
/* put a string at a given pixel position */
void lcd_putsxy(int x, int y, const unsigned char *str)
{
lcd_putsxyofs(x, y, 0, str);
}
/*** line oriented text output ***/
/* put a string at a given char position */
void lcd_puts(int x, int y, const unsigned char *str)
{
lcd_puts_style_offset(x, y, str, STYLE_DEFAULT, 0);
}
void lcd_puts_style(int x, int y, const unsigned char *str, int style)
{
lcd_puts_style_offset(x, y, str, style, 0);
}
void lcd_puts_offset(int x, int y, const unsigned char *str, int offset)
{
lcd_puts_style_offset(x, y, str, STYLE_DEFAULT, offset);
}
/* put a string at a given char position, style, and pixel position,
* skipping first offset pixel columns */
void lcd_puts_style_offset(int x, int y, const unsigned char *str,
int style, int offset)
{
int xpos,ypos,w,h,xrect;
int lastmode = current_vp->drawmode;
/* make sure scrolling is turned off on the line we are updating */
lcd_scroll_stop_line(current_vp, y);
if(!str || !str[0])
return;
lcd_getstringsize(str, &w, &h);
xpos = x*w / utf8length((char *)str);
ypos = y*h;
current_vp->drawmode = (style & STYLE_INVERT) ?
(DRMODE_SOLID|DRMODE_INVERSEVID) : DRMODE_SOLID;
lcd_putsxyofs(xpos, ypos, offset, str);
current_vp->drawmode ^= DRMODE_INVERSEVID;
xrect = xpos + MAX(w - offset, 0);
lcd_fillrect(xrect, ypos, current_vp->width - xrect, h);
current_vp->drawmode = lastmode;
}
/*** scrolling ***/
void lcd_puts_scroll(int x, int y, const unsigned char *string)
{
lcd_puts_scroll_style(x, y, string, STYLE_DEFAULT);
}
void lcd_puts_scroll_style(int x, int y, const unsigned char *string, int style)
{
lcd_puts_scroll_style_offset(x, y, string, style, 0);
}
void lcd_puts_scroll_offset(int x, int y, const unsigned char *string, int offset)
{
lcd_puts_scroll_style_offset(x, y, string, STYLE_DEFAULT, offset);
}
void lcd_puts_scroll_style_offset(int x, int y, const unsigned char *string,
int style, int offset)
{
struct scrollinfo* s;
int w, h;
if ((unsigned)y >= (unsigned)current_vp->height)
return;
/* remove any previously scrolling line at the same location */
lcd_scroll_stop_line(current_vp, y);
if (lcd_scroll_info.lines >= LCD_SCROLLABLE_LINES) return;
s = &lcd_scroll_info.scroll[lcd_scroll_info.lines];
s->start_tick = current_tick + lcd_scroll_info.delay;
s->style = style;
if (style & STYLE_INVERT) {
lcd_puts_style_offset(x,y,string,STYLE_INVERT,offset);
}
else
lcd_puts_offset(x,y,string,offset);
lcd_getstringsize(string, &w, &h);
if (current_vp->width - x * 8 < w) {
/* prepare scroll line */
char *end;
memset(s->line, 0, sizeof s->line);
strcpy(s->line, (char *)string);
/* get width */
s->width = lcd_getstringsize((unsigned char *)s->line, &w, &h);
/* scroll bidirectional or forward only depending on the string
width */
if ( lcd_scroll_info.bidir_limit ) {
s->bidir = s->width < (current_vp->width) *
(100 + lcd_scroll_info.bidir_limit) / 100;
}
else
s->bidir = false;
if (!s->bidir) { /* add spaces if scrolling in the round */
strcat(s->line, " ");
/* get new width incl. spaces */
s->width = lcd_getstringsize((unsigned char *)s->line, &w, &h);
}
end = strchr(s->line, '\0');
strlcpy(end, (char *)string, current_vp->width/2);
s->vp = current_vp;
s->y = y;
s->len = utf8length((char *)string);
s->offset = offset;
s->startx = x * s->width / s->len;
s->backward = false;
lcd_scroll_info.lines++;
}
}
void lcd_scroll_fn(void)
{
struct font* pf;
struct scrollinfo* s;
int index;
int xpos, ypos;
int lastmode;
struct viewport* old_vp = current_vp;
for ( index = 0; index < lcd_scroll_info.lines; index++ ) {
s = &lcd_scroll_info.scroll[index];
/* check pause */
if (TIME_BEFORE(current_tick, s->start_tick))
continue;
lcd_set_viewport(s->vp);
if (s->backward)
s->offset -= lcd_scroll_info.step;
else
s->offset += lcd_scroll_info.step;
pf = font_get(current_vp->font);
xpos = s->startx;
ypos = s->y * pf->height;
if (s->bidir) { /* scroll bidirectional */
if (s->offset <= 0) {
/* at beginning of line */
s->offset = 0;
s->backward = false;
s->start_tick = current_tick + lcd_scroll_info.delay * 2;
}
if (s->offset >= s->width - (current_vp->width - xpos)) {
/* at end of line */
s->offset = s->width - (current_vp->width - xpos);
s->backward = true;
s->start_tick = current_tick + lcd_scroll_info.delay * 2;
}
}
else {
/* scroll forward the whole time */
if (s->offset >= s->width)
s->offset %= s->width;
}
lastmode = current_vp->drawmode;
current_vp->drawmode = (s->style&STYLE_INVERT) ?
(DRMODE_SOLID|DRMODE_INVERSEVID) : DRMODE_SOLID;
lcd_putsxyofs(xpos, ypos, s->offset, s->line);
current_vp->drawmode = lastmode;
lcd_update_viewport_rect(xpos, ypos, current_vp->width - xpos, pf->height);
}
lcd_set_viewport(old_vp);
}
#include "lcd-bitmap-common.c"

226
firmware/drivers/lcd-2bit-vert.c
View file

@ -404,7 +404,7 @@ void lcd_clear_viewport(void)
lastmode = current_vp->drawmode;
/* Invert the INVERSEVID bit and set basic mode to SOLID */
current_vp->drawmode = (~lastmode & DRMODE_INVERSEVID) |
current_vp->drawmode = (~lastmode & DRMODE_INVERSEVID) |
DRMODE_SOLID;
lcd_fillrect(0, 0, current_vp->width, current_vp->height);
@ -1002,226 +1002,4 @@ void lcd_bitmap(const fb_data *src, int x, int y, int width, int height)
lcd_bitmap_part(src, 0, 0, width, x, y, width, height);
}
/* put a string at a given pixel position, skipping first ofs pixel columns */
static void lcd_putsxyofs(int x, int y, int ofs, const unsigned char *str)
{
unsigned short ch;
unsigned short *ucs;
struct font* pf = font_get(current_vp->font);
ucs = bidi_l2v(str, 1);
while ((ch = *ucs++) != 0 && x < current_vp->width)
{
int width;
const unsigned char *bits;
/* get proportional width and glyph bits */
width = font_get_width(pf,ch);
if (ofs > width)
{
ofs -= width;
continue;
}
bits = font_get_bits(pf, ch);
lcd_mono_bitmap_part(bits, ofs, 0, width, x, y, width - ofs,
pf->height);
x += width - ofs;
ofs = 0;
}
}
/* put a string at a given pixel position */
void lcd_putsxy(int x, int y, const unsigned char *str)
{
lcd_putsxyofs(x, y, 0, str);
}
/*** line oriented text output ***/
/* put a string at a given char position */
void lcd_puts(int x, int y, const unsigned char *str)
{
lcd_puts_style_offset(x, y, str, STYLE_DEFAULT, 0);
}
void lcd_puts_style(int x, int y, const unsigned char *str, int style)
{
lcd_puts_style_offset(x, y, str, style, 0);
}
void lcd_puts_offset(int x, int y, const unsigned char *str, int offset)
{
lcd_puts_style_offset(x, y, str, STYLE_DEFAULT, offset);
}
/* put a string at a given char position, style, and pixel position,
* skipping first offset pixel columns */
void lcd_puts_style_offset(int x, int y, const unsigned char *str,
int style, int offset)
{
int xpos,ypos,w,h,xrect;
int lastmode = current_vp->drawmode;
/* make sure scrolling is turned off on the line we are updating */
lcd_scroll_stop_line(current_vp, y);
if(!str || !str[0])
return;
lcd_getstringsize(str, &w, &h);
xpos = x*w / utf8length((char *)str);
ypos = y*h;
current_vp->drawmode = (style & STYLE_INVERT) ?
(DRMODE_SOLID|DRMODE_INVERSEVID) : DRMODE_SOLID;
lcd_putsxyofs(xpos, ypos, offset, str);
current_vp->drawmode ^= DRMODE_INVERSEVID;
xrect = xpos + MAX(w - offset, 0);
lcd_fillrect(xrect, ypos, current_vp->width - xrect, h);
current_vp->drawmode = lastmode;
}
/*** scrolling ***/
void lcd_puts_scroll(int x, int y, const unsigned char *string)
{
lcd_puts_scroll_style(x, y, string, STYLE_DEFAULT);
}
void lcd_puts_scroll_style(int x, int y, const unsigned char *string, int style)
{
lcd_puts_scroll_style_offset(x, y, string, style, 0);
}
void lcd_puts_scroll_offset(int x, int y, const unsigned char *string, int offset)
{
lcd_puts_scroll_style_offset(x, y, string, STYLE_DEFAULT, offset);
}
void lcd_puts_scroll_style_offset(int x, int y, const unsigned char *string,
int style, int offset)
{
struct scrollinfo* s;
int w, h;
if ((unsigned)y >= (unsigned)current_vp->height)
return;
/* remove any previously scrolling line at the same location */
lcd_scroll_stop_line(current_vp, y);
if (lcd_scroll_info.lines >= LCD_SCROLLABLE_LINES) return;
s = &lcd_scroll_info.scroll[lcd_scroll_info.lines];
s->start_tick = current_tick + lcd_scroll_info.delay;
s->style = style;
if (style & STYLE_INVERT) {
lcd_puts_style_offset(x,y,string,STYLE_INVERT,offset);
}
else
lcd_puts_offset(x,y,string,offset);
lcd_getstringsize(string, &w, &h);
if (current_vp->width - x * 8< w) {
/* prepare scroll line */
char *end;
memset(s->line, 0, sizeof s->line);
strcpy(s->line, (char *)string);
/* get width */
s->width = lcd_getstringsize((unsigned char *)s->line, &w, &h);
/* scroll bidirectional or forward only depending on the string
width */
if ( lcd_scroll_info.bidir_limit ) {
s->bidir = s->width < (current_vp->width) *
(100 + lcd_scroll_info.bidir_limit) / 100;
}
else
s->bidir = false;
if (!s->bidir) { /* add spaces if scrolling in the round */
strcat(s->line, " ");
/* get new width incl. spaces */
s->width = lcd_getstringsize((unsigned char *)s->line, &w, &h);
}
end = strchr(s->line, '\0');
strlcpy(end, (char *)string, current_vp->width/2);
s->vp = current_vp;
s->y = y;
s->len = utf8length((char *)string);
s->offset = offset;
s->startx = x * s->width / s->len;
s->backward = false;
lcd_scroll_info.lines++;
}
}
void lcd_scroll_fn(void)
{
struct font* pf;
struct scrollinfo* s;
int index;
int xpos, ypos;
int lastmode;
struct viewport* old_vp = current_vp;
for ( index = 0; index < lcd_scroll_info.lines; index++ ) {
s = &lcd_scroll_info.scroll[index];
/* check pause */
if (TIME_BEFORE(current_tick, s->start_tick))
continue;
lcd_set_viewport(s->vp);
if (s->backward)
s->offset -= lcd_scroll_info.step;
else
s->offset += lcd_scroll_info.step;
pf = font_get(current_vp->font);
xpos = s->startx;
ypos = s->y * pf->height;
if (s->bidir) { /* scroll bidirectional */
if (s->offset <= 0) {
/* at beginning of line */
s->offset = 0;
s->backward = false;
s->start_tick = current_tick + lcd_scroll_info.delay * 2;
}
if (s->offset >= s->width - (current_vp->width - xpos)) {
/* at end of line */
s->offset = s->width - (current_vp->width - xpos);
s->backward = true;
s->start_tick = current_tick + lcd_scroll_info.delay * 2;
}
}
else {
/* scroll forward the whole time */
if (s->offset >= s->width)
s->offset %= s->width;
}
lastmode = current_vp->drawmode;
current_vp->drawmode = (s->style&STYLE_INVERT) ?
(DRMODE_SOLID|DRMODE_INVERSEVID) : DRMODE_SOLID;
lcd_putsxyofs(xpos, ypos, s->offset, s->line);
current_vp->drawmode = lastmode;
lcd_update_viewport_rect(xpos, ypos,
current_vp->width - xpos, pf->height);
}
lcd_set_viewport(old_vp);
}
#include "lcd-bitmap-common.c"

225
firmware/drivers/lcd-2bit-vi.c
View file

@ -66,7 +66,7 @@ static struct viewport default_vp =
.bg_pattern = LCDM(DEFAULT_BG)
};
static struct viewport *current_vp IBSS_ATTR;
static struct viewport * current_vp IBSS_ATTR;
static unsigned fg_pattern IBSS_ATTR;
static unsigned bg_pattern IBSS_ATTR;
@ -1016,225 +1016,4 @@ void LCDFN(bitmap)(const FBFN(data) *src, int x, int y, int width, int height)
LCDFN(bitmap_part)(src, 0, 0, width, x, y, width, height);
}
/* put a string at a given pixel position, skipping first ofs pixel columns */
static void LCDFN(putsxyofs)(int x, int y, int ofs, const unsigned char *str)
{
unsigned short ch;
unsigned short *ucs;
struct font* pf = font_get(current_vp->font);
ucs = bidi_l2v(str, 1);
while ((ch = *ucs++) != 0 && x < current_vp->width)
{
int width;
const unsigned char *bits;
/* get proportional width and glyph bits */
width = font_get_width(pf, ch);
if (ofs > width)
{
ofs -= width;
continue;
}
bits = font_get_bits(pf, ch);
LCDFN(mono_bitmap_part)(bits, ofs, 0, width, x, y, width - ofs,
pf->height);
x += width - ofs;
ofs = 0;
}
}
/* put a string at a given pixel position */
void LCDFN(putsxy)(int x, int y, const unsigned char *str)
{
LCDFN(putsxyofs)(x, y, 0, str);
}
/*** line oriented text output ***/
/* put a string at a given char position */
void LCDFN(puts)(int x, int y, const unsigned char *str)
{
LCDFN(puts_style_offset)(x, y, str, STYLE_DEFAULT, 0);
}
void LCDFN(puts_style)(int x, int y, const unsigned char *str, int style)
{
LCDFN(puts_style_offset)(x, y, str, style, 0);
}
void LCDFN(puts_offset)(int x, int y, const unsigned char *str, int offset)
{
LCDFN(puts_style_offset)(x, y, str, STYLE_DEFAULT, offset);
}
/* put a string at a given char position, style, and pixel position,
* skipping first offset pixel columns */
void LCDFN(puts_style_offset)(int x, int y, const unsigned char *str,
int style, int offset)
{
int xpos,ypos,w,h,xrect;
int lastmode = current_vp->drawmode;
/* make sure scrolling is turned off on the line we are updating */
LCDFN(scroll_stop_line)(current_vp, y);
if(!str || !str[0])
return;
LCDFN(getstringsize)(str, &w, &h);
xpos = x*w / utf8length((char *)str);
ypos = y*h;
current_vp->drawmode = (style & STYLE_INVERT) ?
(DRMODE_SOLID|DRMODE_INVERSEVID) : DRMODE_SOLID;
LCDFN(putsxyofs)(xpos, ypos, offset, str);
current_vp->drawmode ^= DRMODE_INVERSEVID;
xrect = xpos + MAX(w - offset, 0);
LCDFN(fillrect)(xrect, ypos, current_vp->width - xrect, h);
current_vp->drawmode = lastmode;
}
/*** scrolling ***/
void LCDFN(puts_scroll)(int x, int y, const unsigned char *string)
{
LCDFN(puts_scroll_style)(x, y, string, STYLE_DEFAULT);
}
void LCDFN(puts_scroll_style)(int x, int y, const unsigned char *string, int style)
{
LCDFN(puts_scroll_style_offset)(x, y, string, style, 0);
}
void LCDFN(puts_scroll_offset)(int x, int y, const unsigned char *string, int offset)
{
LCDFN(puts_scroll_style_offset)(x, y, string, STYLE_DEFAULT, offset);
}
void LCDFN(puts_scroll_style_offset)(int x, int y, const unsigned char *string,
int style, int offset)
{
struct scrollinfo* s;
int w, h;
if ((unsigned)y >= (unsigned)current_vp->height)
return;
/* remove any previously scrolling line at the same location */
LCDFN(scroll_stop_line)(current_vp, y);
if (LCDFN(scroll_info).lines >= LCDM(SCROLLABLE_LINES)) return;
s = &LCDFN(scroll_info).scroll[LCDFN(scroll_info).lines];
s->start_tick = current_tick + LCDFN(scroll_info).delay;
s->style = style;
if (style & STYLE_INVERT) {
LCDFN(puts_style_offset)(x,y,string,STYLE_INVERT,offset);
}
else
LCDFN(puts_offset)(x,y,string,offset);
LCDFN(getstringsize)(string, &w, &h);
if (current_vp->width - x * 8 < w) {
/* prepare scroll line */
char *end;
memset(s->line, 0, sizeof s->line);
strcpy(s->line, string);
/* get width */
s->width = LCDFN(getstringsize)(s->line, &w, &h);
/* scroll bidirectional or forward only depending on the string
width */
if ( LCDFN(scroll_info).bidir_limit ) {
s->bidir = s->width < (current_vp->width) *
(100 + LCDFN(scroll_info).bidir_limit) / 100;
}
else
s->bidir = false;
if (!s->bidir) { /* add spaces if scrolling in the round */
strcat(s->line, " ");
/* get new width incl. spaces */
s->width = LCDFN(getstringsize)(s->line, &w, &h);
}
end = strchr(s->line, '\0');
strlcpy(end, (char *)string, current_vp->width/2);
s->vp = current_vp;
s->y = y;
s->len = utf8length((char *)string);
s->offset = offset;
s->startx = x * s->width / s->len;
s->backward = false;
LCDFN(scroll_info).lines++;
}
}
void LCDFN(scroll_fn)(void)
{
struct font* pf;
struct scrollinfo* s;
int index;
int xpos, ypos;
int lastmode;
struct viewport* old_vp = current_vp;
for ( index = 0; index < LCDFN(scroll_info).lines; index++ ) {
s = &LCDFN(scroll_info).scroll[index];
/* check pause */
if (TIME_BEFORE(current_tick, s->start_tick))
continue;
LCDFN(set_viewport)(s->vp);
if (s->backward)
s->offset -= LCDFN(scroll_info).step;
else
s->offset += LCDFN(scroll_info).step;
pf = font_get(current_vp->font);
xpos = s->startx;
ypos = s->y * pf->height;
if (s->bidir) { /* scroll bidirectional */
if (s->offset <= 0) {
/* at beginning of line */
s->offset = 0;
s->backward = false;
s->start_tick = current_tick + LCDFN(scroll_info).delay * 2;
}
if (s->offset >= s->width - (current_vp->width - xpos)) {
/* at end of line */
s->offset = s->width - (current_vp->width - xpos);
s->backward = true;
s->start_tick = current_tick + LCDFN(scroll_info).delay * 2;
}
}
else {
/* scroll forward the whole time */
if (s->offset >= s->width)
s->offset %= s->width;
}
lastmode = current_vp->drawmode;
current_vp->drawmode = (s->style&STYLE_INVERT) ?
(DRMODE_SOLID|DRMODE_INVERSEVID) : DRMODE_SOLID;
LCDFN(putsxyofs)(xpos, ypos, s->offset, s->line);
current_vp->drawmode = lastmode;
LCDFN(update_viewport_rect)(xpos, ypos,
current_vp->width - xpos, pf->height);
}
LCDFN(set_viewport)(old_vp);
}
#include "lcd-bitmap-common.c"

329
firmware/drivers/lcd-bitmap-common.c Normal file
View file

@ -0,0 +1,329 @@
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 Dave Chapman
* Text rendering
* Copyright (C) 2006 Shachar Liberman
* Offset text, scrolling
* Copyright (C) 2007 Nicolas Pennequin, Tom Ross, Ken Fazzone, Akio Idehara
* Color gradient background
* Copyright (C) 2009 Andrew Mahone
* Merged common LCD bitmap code
*
* Rockbox common bitmap LCD functions
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef LCDFN /* Not compiling for remote - define macros for main LCD. */
#define LCDFN(fn) lcd_ ## fn
#define FBFN(fn) fb_ ## fn
#define LCDM(ma) LCD_ ## ma
#define LCDNAME "lcd_"
#define MAIN_LCD
#endif
#if defined(MAIN_LCD) && defined(HAVE_LCD_COLOR)
/* Fill a rectangle with a gradient */
static void lcd_gradient_rect(int x1, int x2, int y, unsigned h,
int num_lines, int cur_line)
{
int old_pattern = current_vp->fg_pattern;
int step_mul;
if (h == 0) return;
num_lines *= h;
cur_line *= h;
step_mul = (1 << 16) / (num_lines);
int h_r = RGB_UNPACK_RED(current_vp->lss_pattern);
int h_g = RGB_UNPACK_GREEN(current_vp->lss_pattern);
int h_b = RGB_UNPACK_BLUE(current_vp->lss_pattern);
int rstep = (h_r - RGB_UNPACK_RED(current_vp->lse_pattern)) * step_mul;
int gstep = (h_g - RGB_UNPACK_GREEN(current_vp->lse_pattern)) * step_mul;
int bstep = (h_b - RGB_UNPACK_BLUE(current_vp->lse_pattern)) * step_mul;
h_r = (h_r << 16) + (1 << 15);
h_g = (h_g << 16) + (1 << 15);
h_b = (h_b << 16) + (1 << 15);
if (cur_line)
{
h_r -= cur_line * rstep;
h_g -= cur_line * gstep;
h_b -= cur_line * bstep;
}
unsigned count;
for(count = 0; count < h; count++) {
current_vp->fg_pattern = LCD_RGBPACK(h_r >> 16, h_g >> 16, h_b >> 16);
lcd_hline(x1, x2, y + count);
h_r -= rstep;
h_g -= gstep;
h_b -= bstep;
}
current_vp->fg_pattern = old_pattern;
}
#endif
/* put a string at a given pixel position, skipping first ofs pixel columns */
static void LCDFN(putsxyofs)(int x, int y, int ofs, const unsigned char *str)
{
unsigned short ch;
unsigned short *ucs;
struct font* pf = font_get(current_vp->font);
ucs = bidi_l2v(str, 1);
while ((ch = *ucs++) != 0 && x < current_vp->width)
{
int width;
const unsigned char *bits;
/* get proportional width and glyph bits */
width = font_get_width(pf, ch);
if (ofs > width)
{
ofs -= width;
continue;
}
bits = font_get_bits(pf, ch);
LCDFN(mono_bitmap_part)(bits, ofs, 0, width, x, y, width - ofs,
pf->height);
x += width - ofs;
ofs = 0;
}
}
/* put a string at a given pixel position */
void LCDFN(putsxy)(int x, int y, const unsigned char *str)
{
LCDFN(putsxyofs)(x, y, 0, str);
}
static void LCDFN(putsxyofs_style)(int xpos, int ypos,
const unsigned char *str, int style,
int w, int h, int offset)
{
int lastmode = current_vp->drawmode;
int xrect = xpos + MAX(w - offset, 0);
#if defined(MAIN_LCD) && defined(HAVE_LCD_COLOR)
int oldfgcolor = current_vp->fg_pattern;
int oldbgcolor = current_vp->bg_pattern;
current_vp->drawmode = DRMODE_SOLID | ((style & STYLE_INVERT) ?
DRMODE_INVERSEVID : 0);
if (style & STYLE_COLORED) {
if (current_vp->drawmode == DRMODE_SOLID)
current_vp->fg_pattern = style & STYLE_COLOR_MASK;
else
current_vp->bg_pattern = style & STYLE_COLOR_MASK;
}
current_vp->drawmode ^= DRMODE_INVERSEVID;
if (style & STYLE_GRADIENT) {
current_vp->drawmode = DRMODE_FG;
lcd_gradient_rect(xpos, current_vp->width, ypos, h,
NUMLN_UNPACK(style), CURLN_UNPACK(style));
current_vp->fg_pattern = current_vp->lst_pattern;
}
else if (style & STYLE_COLORBAR) {
current_vp->drawmode = DRMODE_FG;
current_vp->fg_pattern = current_vp->lss_pattern;
lcd_fillrect(xpos, ypos, current_vp->width - xpos, h);
current_vp->fg_pattern = current_vp->lst_pattern;
}
else {
lcd_fillrect(xrect, ypos, current_vp->width - xrect, h);
current_vp->drawmode = (style & STYLE_INVERT) ?
(DRMODE_SOLID|DRMODE_INVERSEVID) : DRMODE_SOLID;
}
lcd_putsxyofs(xpos, ypos, offset, str);
current_vp->fg_pattern = oldfgcolor;
current_vp->bg_pattern = oldbgcolor;
#else
current_vp->drawmode = DRMODE_SOLID | ((style & STYLE_INVERT) ?
0 : DRMODE_INVERSEVID);
LCDFN(fillrect)(xrect, ypos, current_vp->width - xrect, h);
current_vp->drawmode ^= DRMODE_INVERSEVID;
LCDFN(putsxyofs)(xpos, ypos, offset, str);
#endif
current_vp->drawmode = lastmode;
}
/*** Line oriented text output ***/
/* put a string at a given char position */
void LCDFN(puts_style_offset)(int x, int y, const unsigned char *str,
int style, int offset)
{
int xpos, ypos, w, h;
LCDFN(scroll_stop_line)(current_vp, y);
if(!str || !str[0])
return;
LCDFN(getstringsize)(str, &w, &h);
xpos = x * w / utf8length((char *)str);
ypos = y * h;
LCDFN(putsxyofs_style)(xpos, ypos, str, style, w, h, offset);
}
void LCDFN(puts)(int x, int y, const unsigned char *str)
{
LCDFN(puts_style_offset)(x, y, str, STYLE_DEFAULT, 0);
}
void LCDFN(puts_style)(int x, int y, const unsigned char *str, int style)
{
LCDFN(puts_style_offset)(x, y, str, style, 0);
}
void LCDFN(puts_offset)(int x, int y, const unsigned char *str, int offset)
{
LCDFN(puts_style_offset)(x, y, str, STYLE_DEFAULT, offset);
}
/*** scrolling ***/
void LCDFN(puts_scroll_style_offset)(int x, int y, const unsigned char *string,
int style, int offset)
{
int w, h;
if ((unsigned)y >= (unsigned)current_vp->height)
return;
/* remove any previously scrolling line at the same location */
lcd_scroll_stop_line(current_vp, y);
if (LCDFN(scroll_info.lines) >= LCDM(SCROLLABLE_LINES)) return;
if (!string)
return;
LCDFN(puts_style_offset)(x, y, string, style, offset);
LCDFN(getstringsize)(string, &w, &h);
if (current_vp->width - x * 8 < w) {
/* prepare scroll line */
struct scrollinfo* s;
s = &LCDFN(scroll_info).scroll[LCDFN(scroll_info).lines];
s->start_tick = current_tick + LCDFN(scroll_info).delay;
s->style = style;
char *end;
memset(s->line, 0, sizeof s->line);
strcpy(s->line, string);
/* get width */
s->width = LCDFN(getstringsize)(s->line, &w, &h);
/* scroll bidirectional or forward only depending on the string
width */
if ( LCDFN(scroll_info).bidir_limit ) {
s->bidir = s->width < (current_vp->width) *
(100 + LCDFN(scroll_info).bidir_limit) / 100;
}
else
s->bidir = false;
if (!s->bidir) { /* add spaces if scrolling in the round */
strcat(s->line, " ");
/* get new width incl. spaces */
s->width = LCDFN(getstringsize)(s->line, &w, &h);
}
end = strchr(s->line, '\0');
strlcpy(end, string, current_vp->width/2);
s->vp = current_vp;
s->y = y;
s->len = utf8length(string);
s->offset = offset;
s->startx = x * s->width / s->len;
s->backward = false;
LCDFN(scroll_info).lines++;
}
}
void LCDFN(puts_scroll)(int x, int y, const unsigned char *string)
{
LCDFN(puts_scroll_style)(x, y, string, STYLE_DEFAULT);
}
void LCDFN(puts_scroll_style)(int x, int y, const unsigned char *string,
int style)
{
LCDFN(puts_scroll_style_offset)(x, y, string, style, 0);
}
void LCDFN(puts_scroll_offset)(int x, int y, const unsigned char *string,
int offset)
{
LCDFN(puts_scroll_style_offset)(x, y, string, STYLE_DEFAULT, offset);
}
void LCDFN(scroll_fn)(void)
{
struct font* pf;
struct scrollinfo* s;
int index;
int xpos, ypos;
struct viewport* old_vp = current_vp;
for ( index = 0; index < LCDFN(scroll_info).lines; index++ ) {
s = &LCDFN(scroll_info).scroll[index];
/* check pause */
if (TIME_BEFORE(current_tick, s->start_tick))
continue;
LCDFN(set_viewport)(s->vp);
if (s->backward)
s->offset -= LCDFN(scroll_info).step;
else
s->offset += LCDFN(scroll_info).step;
pf = font_get(current_vp->font);
xpos = s->startx;
ypos = s->y * pf->height;
if (s->bidir) { /* scroll bidirectional */
if (s->offset <= 0) {
/* at beginning of line */
s->offset = 0;
s->backward = false;
s->start_tick = current_tick + LCDFN(scroll_info).delay * 2;
}
if (s->offset >= s->width - (current_vp->width - xpos)) {
/* at end of line */
s->offset = s->width - (current_vp->width - xpos);
s->backward = true;
s->start_tick = current_tick + LCDFN(scroll_info).delay * 2;
}
}
else {
/* scroll forward the whole time */
if (s->offset >= s->width)
s->offset %= s->width;
}
LCDFN(putsxyofs_style)(xpos, ypos, s->line, s->style, s->width,
pf->height, s->offset);
LCDFN(update_viewport_rect)(xpos, ypos, current_vp->width - xpos,
pf->height);
}
LCDFN(set_viewport)(old_vp);
}