Implement fix from https://github.com/cosmoderp/Marlin/commit/5c8e1e7d4af37e25fb9040dcbf690bbb089948e6

2020-09-05 15:13:10 -04:00
parent d560a493b2
commit fbb75f41c2
1 changed files with 2 additions and 2 deletions
@@ -39,7 +39,7 @@

 // Make sure DWIN_SendBuf is large enough to hold the largest
 // printed string plus the draw command and tail.
-uint8_t DWIN_SendBuf[11 + 24] = { 0xAA };
+uint8_t DWIN_SendBuf[11 + DWIN_WIDTH / 8] = { 0xAA };
 uint8_t DWIN_BufTail[4] = { 0xCC, 0x33, 0xC3, 0x3C };
 uint8_t databuf[26] = { 0 };
 uint8_t receivedType;
@@ -63,7 +63,7 @@ inline void DWIN_Long(size_t &i, const uint32_t lval) {
 }

 inline void DWIN_String(size_t &i, char * const string) {
-  const size_t len = strlen(string);
+  const size_t len = _MIN(sizeof(DWIN_SendBuf) - i, strlen(string));
  memcpy(&DWIN_SendBuf[i+1], string, len);
  i += len;
 }