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[2.0.x] Buffer overflow and scroll fix, UTF8 cleanup (#10844)

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This commit is contained in:
Eduardo José Tagle
2018-05-26 01:32:37 -03:00
committed by Scott Lahteine
parent 235facd545
commit 6f330f397e
17 changed files with 413 additions and 671 deletions
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107
Marlin/src/lcd/lcdprint_hd44780.cpp
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@@ -24,20 +24,13 @@
#include "fontutils.h"
#include "lcdprint.h"
#if defined(ARDUINO)
#include "ultralcd_common_HD44780.h"
#ifndef LCD_CLASS
#include <LiquidCrystal.h>
#define LCD_CLASS LiquidCrystal
#endif
extern LCD_CLASS lcd;
LCD_CLASS *plcd = &lcd;
#define _lcd_write(a) plcd->write(a)
#define _lcd_setcursor(col, row) plcd->setCursor((col), (row));
#else
#define _lcd_write(a) TRACE("Write LCD: %c (%d)", (a), (int)(a));
#define _lcd_setcursor(col, row) TRACE("Set cursor LCD: (%d,%d)", (col), (row));
#include "ultralcd_common_HD44780.h"
#ifndef LCD_CLASS
#include <LiquidCrystal.h>
#define LCD_CLASS LiquidCrystal
#endif
extern LCD_CLASS lcd;
LCD_CLASS *plcd = &lcd;
int lcd_glyph_height(void) { return 1; }
@@ -878,25 +871,10 @@ static const hd44780_charmap_t g_hd44780_charmap_common[] PROGMEM = {
/* return v1 - v2 */
static int hd44780_charmap_compare(hd44780_charmap_t * v1, hd44780_charmap_t * v2) {
FU_ASSERT(NULL != v1);
FU_ASSERT(NULL != v2);
TRACE("compare char1 %" PRIu32 "(0x%" PRIX32 ")", v1->uchar, v1->uchar);
TRACE("compare char2 %" PRIu32 "(0x%" PRIX32 ")", v2->uchar, v2->uchar);
if (v1->uchar < v2->uchar) {
TRACE("compare return -1");
if (v1->uchar < v2->uchar)
return -1;
} else if (v1->uchar > v2->uchar) {
TRACE("compare return 1");
else if (v1->uchar > v2->uchar)
return 1;
}
#if 0
if (v1->idx < v2->idx) {
return -1;
} else if (v1->idx > v2->idx) {
return 1;
}
#endif
TRACE("compare return 0");
return 0;
}
@@ -909,9 +887,7 @@ static int pf_bsearch_cb_comp_hd4map_pgm(void *userdata, size_t idx, void * data
#if DEBUG
int
test_hd44780_charmap(hd44780_charmap_t *data, size_t size, char *name, char flg_show_contents)
{
int test_hd44780_charmap(hd44780_charmap_t *data, size_t size, char *name, char flg_show_contents) {
int ret;
size_t idx = 0;
hd44780_charmap_t preval = {0, 0, 0};
@@ -963,9 +939,7 @@ test_hd44780_charmap(hd44780_charmap_t *data, size_t size, char *name, char flg_
return 0;
}
int
test_hd44780_charmap_all(void)
{
int test_hd44780_charmap_all(void) {
int flg_error = 0;
if (test_hd44780_charmap(g_hd44780_charmap_device, NUM_ARRAY(g_hd44780_charmap_device), "g_hd44780_charmap_device", 0) < 0) {
flg_error = 1;
@@ -986,18 +960,17 @@ test_hd44780_charmap_all(void)
#endif // DEBUG
void lcd_moveto(int col, int row) {
TRACE("Move to: (%d,%d)", col, row);
_lcd_setcursor(col, row);
plcd->setCursor(col, row);
}
// return < 0 on error
// return the advanced cols
int lcd_put_wchar_max(wchar_t c, pixel_len_t max_length) {
// find the HD44780 internal ROM first
int ret;
size_t idx = 0;
hd44780_charmap_t pinval;
hd44780_charmap_t localval;
hd44780_charmap_t *copy_address = NULL;
pinval.uchar = c;
pinval.idx = -1;
@@ -1006,37 +979,33 @@ int lcd_put_wchar_max(wchar_t c, pixel_len_t max_length) {
// TODO: fix the '\\' that doesnt exist in the HD44870
if (c < 128) {
//TRACE("draw char: regular %d", (int)c);
_lcd_write((uint8_t)c);
plcd->write((uint8_t)c);
return 1;
}
copy_address = NULL;
ret = pf_bsearch_r((void *)g_hd44780_charmap_device, NUM_ARRAY(g_hd44780_charmap_device), pf_bsearch_cb_comp_hd4map_pgm, (void *)&pinval, &idx);
if (ret >= 0) {
copy_address = (hd44780_charmap_t *)(g_hd44780_charmap_device + idx);
} else {
}
else {
ret = pf_bsearch_r((void *)g_hd44780_charmap_common, NUM_ARRAY(g_hd44780_charmap_common), pf_bsearch_cb_comp_hd4map_pgm, (void *)&pinval, &idx);
if (ret >= 0) {
copy_address = (hd44780_charmap_t *)(g_hd44780_charmap_common + idx);
}
if (ret >= 0) copy_address = (hd44780_charmap_t *)(g_hd44780_charmap_common + idx);
}
if (ret >= 0) {
hd44780_charmap_t localval;
// found
FU_ASSERT(NULL != copy_address);
memcpy_P(&localval, copy_address, sizeof(localval));
FU_ASSERT((localval.uchar == c) && (localval.uchar == pinval.uchar));
TRACE("draw char: %" PRIu32 "(0x%" PRIX32 ") at ROM %d(+%d)", c, c, (int)localval.idx, (int)localval.idx2);
_lcd_write(localval.idx);
plcd->write(localval.idx);
if (max_length >= 2 && localval.idx2 > 0) {
_lcd_write(localval.idx2);
plcd->write(localval.idx2);
return 2;
}
return 1;
}
// print '?' instead
TRACE("draw char: Not found " PRIu32 "(0x%" PRIX32 ")", c, c);
_lcd_write((uint8_t)'?');
// Not found, print '?' instead
plcd->write((uint8_t)'?');
return 1;
}
@@ -1044,7 +1013,6 @@ int lcd_put_wchar_max(wchar_t c, pixel_len_t max_length) {
* @brief Draw a UTF-8 string
*
* @param utf8_str : the UTF-8 string
* @param len : the byte length of the string (returned by strlen(utf8_str) or strlen_P(utf8_str) )
* @param cb_read_byte : the callback function to read one byte from the utf8_str (from RAM or ROM)
* @param max_length : the pixel length of the string allowed (or number of slots in HD44780)
*
@@ -1052,39 +1020,24 @@ int lcd_put_wchar_max(wchar_t c, pixel_len_t max_length) {
*
* Draw a UTF-8 string
*/
static int lcd_put_u8str_max_cb(const char * utf8_str, uint16_t len, uint8_t (*cb_read_byte)(uint8_t * str), pixel_len_t max_length) {
wchar_t ch;
uint8_t *p, *pend;
static int lcd_put_u8str_max_cb(const char * utf8_str, uint8_t (*cb_read_byte)(uint8_t * str), pixel_len_t max_length) {
pixel_len_t ret = 0;
TRACE("BEGIN lcd_put_u8str_max_cb(len=%d, maxlen=%d)", len, max_length);
pend = (uint8_t *)utf8_str + len;
for (p = (uint8_t *)utf8_str; (p < pend) && (ret < max_length); ) {
ch = 0;
uint8_t *p = (uint8_t *)utf8_str;
while (ret < max_length) {
wchar_t ch = 0;
p = get_utf8_value_cb(p, cb_read_byte, &ch);
if (NULL == p) {
TRACE("No more char, break ...");
break;
}
FU_ASSERT(ret < max_length);
if (!p) break;
ret += lcd_put_wchar_max(ch, max_length - ret);
}
return (int)ret;
}
int lcd_put_u8str_max(const char * utf8_str, pixel_len_t max_length) {
//TRACE("BEGIN lcd_put_u8str_max(str='%s', len=%d, maxlen=%d)", utf8_str, strlen(utf8_str), max_length);
TRACE("BEGIN lcd_put_u8str_max(str='%s')", utf8_str);
TRACE("BEGIN lcd_put_u8str_max('len=%d)", strlen(utf8_str));
TRACE("BEGIN lcd_put_u8str_max(maxlen=%d)", max_length);
return lcd_put_u8str_max_cb(utf8_str, strlen(utf8_str), read_byte_ram, max_length);
return lcd_put_u8str_max_cb(utf8_str, read_byte_ram, max_length);
}
int lcd_put_u8str_max_rom(const char * utf8_str_P, pixel_len_t max_length) {
//TRACE("BEGIN lcd_put_u8str_max_rom('%s', len=%d, maxlen=%d)", utf8_str_P, strlen_P(utf8_str_P), max_length);
TRACE("BEGIN lcd_put_u8str_max_rom(len=%d)", strlen_P(utf8_str_P));
TRACE("BEGIN lcd_put_u8str_max_rom(maxlen=%d)", max_length);
return lcd_put_u8str_max_cb(utf8_str_P, strlen_P(utf8_str_P), read_byte_rom, max_length);
int lcd_put_u8str_max_P(const char * utf8_str_P, pixel_len_t max_length) {
return lcd_put_u8str_max_cb(utf8_str_P, read_byte_rom, max_length);
}
#endif // DOGLCD