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test_disk: scroll the log when the screen is full

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When the text reached the bottom of the screen it started again at
the top, over what was there, so the old lines showed through the
new.  Scroll up a line instead, as test_codec does.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Change-Id: I024eda05bbcca6f1539893ea609c89f562436e2f
This commit is contained in:
Michael Giacomelli 2026-10-07 22:55:29 -04:00
parent 303c534022
commit 853274937c
1 changed files with 11 additions and 6 deletions
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17
apps/plugins/test_disk.c
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@ -20,6 +20,7 @@
#include "plugin.h"
#include "lib/helper.h"
#include "lib/xlcd.h"
@ -39,6 +40,7 @@ static size_t audiobuflen;
static unsigned short frnd_buffer;
static int line = 0;
static int max_line = 0;
static int line_height = 0;
static int log_fd;
static char logfilename[MAX_PATH];
@ -86,10 +88,8 @@ static bool mem_cmp_frnd(unsigned char *addr, int len)
static bool log_init(void)
{
int h;
rb->lcd_getstringsize("A", NULL, &h);
max_line = LCD_HEIGHT / h;
rb->lcd_getstringsize("A", NULL, &line_height);
max_line = LCD_HEIGHT / line_height;
line = 0;
rb->lcd_clear_display();
rb->lcd_update();
@ -102,12 +102,17 @@ static bool log_init(void)
static void log_text(char *text, bool advance)
{
if (line >= max_line)
{
/* The screen is full: scroll up to make room for this line */
xlcd_scroll_up(line_height);
line = max_line - 1;
}
rb->lcd_puts(0, line, text);
rb->lcd_update();
if (advance)
{
if (++line >= max_line)
line = 0;
line++;
rb->fdprintf(log_fd, "%s\n", text);
}
}