void PlayFile_3_0(Fat16 &file, LightWall &LW, void (*error_code)(int)) {
/*Message Type 0 header: 4 bytes
* 1 Byte: Lights per string
* 1 Byte: Lights per Row
* 2 Bytes: Inter-frame pause
*/
if (file.read(header_3_0, 2) <2)
{
error_code(4); //Unexpected EOF
return;
}
if (header_3_0[0] != LW.lightsPerString())
{
error_code(13); //Mismatched light count
return;
}
if (header_3_0[1] != LW.lightsPerRow())
{
error_code(14); //Mismatched Row Size
return;
}
if (file.read(&ifg, 2) <2) // Bytes 4 & 5 are Inter-frame pause
{
error_code(4); //Unexpected EOF
return;
}
if (ifg == 0)
{
ifg=1;
}
readsize = file.read(LW.Buffer, 12);
if (readsize <12)//File should never be empty here
error_code(4); // Unexpected EOF
int i = 0;
while (readsize==12)
{
for (i = 0; i < LW.lightsPerString(); i++)
{
LW.send_frame(i);
_delay_us(30);
readsize = file.read(LW.Buffer, 12);
}
delay(ifg);
}
LW.fadeout(5000);
LW.blank_screen();
//reset intensity from fadeout
LW.set_intensity(0xFF); //intensity=DEFAULT_INTENSITY;
LW.send_frame(63);
_delay_us(50);
delay(1000);
}
uint8_t read() { return f.read(); }
uint32_t read32(Fat16& f) {
uint32_t result;
f.read(&result,sizeof(result));
return result;
}
uint16_t read16(Fat16& f) {
uint16_t result;
f.read(&result,sizeof(result));
return result;
}
int readFile(byte *buffer, int len)
{
int readLen = 0;
readLen = file.read(buffer,len);
return readLen;
}
int newSD::readFile(byte *buffer,unsigned int len)
{
int readLen = 0;
readLen = file.read(buffer,len);
return readLen;
}