forked from len0rd/rockbox
LCD bitmap driver code consolidation from FS#4817:
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
parent
ce00e283b5
commit
e04f95eab9
6 changed files with 336 additions and 1236 deletions
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@ -956,223 +956,4 @@ void lcd_bitmap(const unsigned char *src, int x, int y, int width, int height)
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lcd_bitmap_part(src, 0, 0, width, x, y, width, height);
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}
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/* put a string at a given pixel position, skipping first ofs pixel columns */
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static void lcd_putsxyofs(int x, int y, int ofs, const unsigned char *str)
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{
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unsigned short ch;
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unsigned short *ucs;
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struct font* pf = font_get(current_vp->font);
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ucs = bidi_l2v(str, 1);
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while ((ch = *ucs++) != 0 && x < current_vp->width)
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{
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int width;
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const unsigned char *bits;
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/* get proportional width and glyph bits */
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width = font_get_width(pf,ch);
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if (ofs > width)
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{
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ofs -= width;
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continue;
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}
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bits = font_get_bits(pf, ch);
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lcd_mono_bitmap_part(bits, ofs, 0, width, x, y, width - ofs,
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pf->height);
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x += width - ofs;
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ofs = 0;
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}
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}
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/* put a string at a given pixel position */
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void lcd_putsxy(int x, int y, const unsigned char *str)
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{
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lcd_putsxyofs(x, y, 0, str);
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}
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/*** line oriented text output ***/
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/* put a string at a given char position */
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void lcd_puts(int x, int y, const unsigned char *str)
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{
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lcd_puts_style_offset(x, y, str, STYLE_DEFAULT, 0);
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}
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void lcd_puts_style(int x, int y, const unsigned char *str, int style)
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{
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lcd_puts_style_offset(x, y, str, style, 0);
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}
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void lcd_puts_offset(int x, int y, const unsigned char *str, int offset)
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{
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lcd_puts_style_offset(x, y, str, STYLE_DEFAULT, offset);
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}
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/* put a string at a given char position, style, and pixel position,
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* skipping first offset pixel columns */
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void lcd_puts_style_offset(int x, int y, const unsigned char *str,
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int style, int offset)
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{
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int xpos,ypos,w,h,xrect;
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int lastmode = current_vp->drawmode;
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/* make sure scrolling is turned off on the line we are updating */
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lcd_scroll_stop_line(current_vp, y);
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if(!str || !str[0])
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return;
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lcd_getstringsize(str, &w, &h);
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xpos = x*w / utf8length((char *)str);
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ypos = y*h;
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current_vp->drawmode = (style & STYLE_INVERT) ?
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(DRMODE_SOLID|DRMODE_INVERSEVID) : DRMODE_SOLID;
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lcd_putsxyofs(xpos, ypos, offset, str);
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current_vp->drawmode ^= DRMODE_INVERSEVID;
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xrect = xpos + MAX(w - offset, 0);
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lcd_fillrect(xrect, ypos, current_vp->width - xrect, h);
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current_vp->drawmode = lastmode;
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}
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/*** scrolling ***/
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void lcd_puts_scroll(int x, int y, const unsigned char *string)
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{
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lcd_puts_scroll_style(x, y, string, STYLE_DEFAULT);
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}
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void lcd_puts_scroll_style(int x, int y, const unsigned char *string, int style)
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{
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lcd_puts_scroll_style_offset(x, y, string, style, 0);
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}
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void lcd_puts_scroll_offset(int x, int y, const unsigned char *string, int offset)
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{
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lcd_puts_scroll_style_offset(x, y, string, STYLE_DEFAULT, offset);
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}
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void lcd_puts_scroll_style_offset(int x, int y, const unsigned char *string,
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int style, int offset)
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{
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struct scrollinfo* s;
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int w, h;
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if ((unsigned)y >= (unsigned)current_vp->height)
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return;
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/* remove any previously scrolling line at the same location */
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lcd_scroll_stop_line(current_vp, y);
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if (lcd_scroll_info.lines >= LCD_SCROLLABLE_LINES) return;
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s = &lcd_scroll_info.scroll[lcd_scroll_info.lines];
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s->start_tick = current_tick + lcd_scroll_info.delay;
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s->style = style;
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if (style & STYLE_INVERT) {
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lcd_puts_style_offset(x,y,string,STYLE_INVERT,offset);
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}
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else
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lcd_puts_offset(x,y,string,offset);
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lcd_getstringsize(string, &w, &h);
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if (current_vp->width - x * 8 < w) {
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/* prepare scroll line */
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char *end;
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memset(s->line, 0, sizeof s->line);
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strcpy(s->line, (char *)string);
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/* get width */
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s->width = lcd_getstringsize((unsigned char *)s->line, &w, &h);
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/* scroll bidirectional or forward only depending on the string
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width */
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if ( lcd_scroll_info.bidir_limit ) {
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s->bidir = s->width < (current_vp->width) *
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(100 + lcd_scroll_info.bidir_limit) / 100;
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}
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else
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s->bidir = false;
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if (!s->bidir) { /* add spaces if scrolling in the round */
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strcat(s->line, " ");
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/* get new width incl. spaces */
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s->width = lcd_getstringsize((unsigned char *)s->line, &w, &h);
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}
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end = strchr(s->line, '\0');
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strlcpy(end, (char *)string, current_vp->width/2);
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s->vp = current_vp;
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s->y = y;
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s->len = utf8length((char *)string);
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s->offset = offset;
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s->startx = x * s->width / s->len;
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s->backward = false;
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lcd_scroll_info.lines++;
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}
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}
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void lcd_scroll_fn(void)
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{
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struct font* pf;
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struct scrollinfo* s;
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int index;
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int xpos, ypos;
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int lastmode;
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struct viewport* old_vp = current_vp;
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for ( index = 0; index < lcd_scroll_info.lines; index++ ) {
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s = &lcd_scroll_info.scroll[index];
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/* check pause */
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if (TIME_BEFORE(current_tick, s->start_tick))
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continue;
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lcd_set_viewport(s->vp);
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if (s->backward)
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s->offset -= lcd_scroll_info.step;
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else
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s->offset += lcd_scroll_info.step;
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pf = font_get(current_vp->font);
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xpos = s->startx;
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ypos = s->y * pf->height;
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if (s->bidir) { /* scroll bidirectional */
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if (s->offset <= 0) {
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/* at beginning of line */
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s->offset = 0;
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s->backward = false;
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s->start_tick = current_tick + lcd_scroll_info.delay * 2;
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}
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if (s->offset >= s->width - (current_vp->width - xpos)) {
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/* at end of line */
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s->offset = s->width - (current_vp->width - xpos);
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s->backward = true;
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s->start_tick = current_tick + lcd_scroll_info.delay * 2;
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}
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}
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else {
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/* scroll forward the whole time */
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if (s->offset >= s->width)
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s->offset %= s->width;
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}
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lastmode = current_vp->drawmode;
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current_vp->drawmode = (s->style&STYLE_INVERT) ?
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(DRMODE_SOLID|DRMODE_INVERSEVID) : DRMODE_SOLID;
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lcd_putsxyofs(xpos, ypos, s->offset, s->line);
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current_vp->drawmode = lastmode;
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lcd_update_viewport_rect(xpos, ypos, current_vp->width - xpos, pf->height);
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}
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lcd_set_viewport(old_vp);
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}
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#include "lcd-bitmap-common.c"
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