acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware

git clone git://git.acid.vegas/acid-drop.git

PNG_FS_Support.ino (740B)

      1 // Here are the callback functions that the decPNG library
      2 // will use to open files, fetch data and close the file.
      3 
      4 File pngfile;
      5 
      6 void * pngOpen(const char *filename, int32_t *size) {
      7   Serial.printf("Attempting to open %s\n", filename);
      8   pngfile = FileSys.open(filename, "r");
      9   *size = pngfile.size();
     10   return &pngfile;
     11 }
     12 
     13 void pngClose(void *handle) {
     14   File pngfile = *((File*)handle);
     15   if (pngfile) pngfile.close();
     16 }
     17 
     18 int32_t pngRead(PNGFILE *page, uint8_t *buffer, int32_t length) {
     19   if (!pngfile) return 0;
     20   page = page; // Avoid warning
     21   return pngfile.read(buffer, length);
     22 }
     23 
     24 int32_t pngSeek(PNGFILE *page, int32_t position) {
     25   if (!pngfile) return 0;
     26   page = page; // Avoid warning
     27   return pngfile.seek(position);
     28 }