rockbox/apps/plugins/credits.c
Daniel Stenberg 747bba530c Credit scroll speed as sine wave in an attempt to beome more readable on the
blurry iriver LCD.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7536 a1c6a512-1295-4272-9138-f99709370657
2005-09-22 10:56:42 +00:00

165 lines
4.1 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Robert Hak <rhak at ramapo.edu>
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "plugin.h"
void roll_credits(void);
const char* const credits[] = {
#include "credits.raw" /* generated list of names from docs/CREDITS */
};
static struct plugin_api* rb;
enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
{
int j = 0;
int btn;
TEST_PLUGIN_API(api);
(void)parameter;
rb = api;
rb->show_logo();
#ifdef HAVE_LCD_CHARCELLS
rb->lcd_double_height(false);
#endif
for (j = 0; j < 10; j++) {
rb->sleep((HZ*2)/10);
btn = rb->button_get(false);
if (btn != BUTTON_NONE && !(btn & BUTTON_REL))
return PLUGIN_OK;
}
roll_credits();
return PLUGIN_OK;
}
#ifdef HAVE_LCD_CHARCELLS
void roll_credits(void)
{
int numnames = sizeof(credits)/sizeof(char*);
int curr_name = 0;
int curr_len = rb->strlen(credits[0]);
int curr_index = 0;
int curr_line = 0;
int name, len, new_len, line, x;
while (1)
{
rb->lcd_clear_display();
name = curr_name;
x = -curr_index;
len = curr_len;
line = curr_line;
while (x < 11)
{
int x2;
if (x < 0)
rb->lcd_puts(0, line, credits[name] - x);
else
rb->lcd_puts(x, line, credits[name]);
if (++name >= numnames)
break;
line ^= 1;
x2 = x + len/2;
if ((unsigned)x2 < 11)
rb->lcd_putc(x2, line, '*');
new_len = rb->strlen(credits[name]);
x += MAX(len/2 + 2, len - new_len/2 + 1);
len = new_len;
}
/* abort on keypress */
if (rb->button_get_w_tmo(HZ/8) & BUTTON_REL)
return;
if (++curr_index >= curr_len)
{
if (++curr_name >= numnames)
break;
new_len = rb->strlen(credits[curr_name]);
curr_index -= MAX(curr_len/2 + 2, curr_len - new_len/2 + 1);
curr_len = new_len;
curr_line ^= 1;
}
}
}
#else
static int minisin[]={
#if 1
1, 2, 2, 3, 3, 3, 2, 2, 1, 0, 0, 0, 0, 0, 0, 0
#else
1, 2, 3, 4, 4, 4, 3, 2, 1, 0, 0, -1, -1, -1, 0, 0,
#endif
};
void roll_credits(void)
{
int i;
int line = 0;
int numnames = sizeof(credits)/sizeof(char*);
char buffer[40];
int y=LCD_HEIGHT;
int height;
int width;
int sinstep=0;
rb->lcd_setfont(FONT_UI);
rb->lcd_getstringsize("A", &width, &height);
while(1) {
rb->lcd_clear_display();
for ( i=0; i <= (LCD_HEIGHT-y)/height; i++ )
rb->lcd_putsxy(0, i*height+y, line+i<numnames?credits[line+i]:"");
rb->snprintf(buffer, sizeof(buffer), " [Credits] %2d/%2d ",
line+1, numnames);
rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
rb->lcd_fillrect(0, 0, LCD_WIDTH, height);
rb->lcd_set_drawmode(DRMODE_SOLID);
rb->lcd_putsxy(0, 0, buffer);
rb->lcd_update();
if (rb->button_get_w_tmo(HZ/20) & BUTTON_REL)
return;
y-= minisin[sinstep];
sinstep++;
sinstep &= 0x0f; /* wrap */
if(y<0) {
line++;
if(line >= numnames)
break;
y+=height;
}
}
}
#endif