SPIFFS not loading file correctly

[Kirk-1]

Hardware:

Board: ESP32 Dev Module
Core Installation/update date: 16/feb/2018
IDE name: Arduino IDE
Flash Frequency: 80Mhz
Upload Speed: 115200

Description:

I am trying to load BMP files onto a display using SPIFFS. It was working a few days ago but then I updated the arduino-esp32 repository and now it seems that when I load the SPIFF's file the header bytes are not where they should be. So instead of 0x4D42 being found in the first 2 bytes I have 0xFFFF.

The files were loaded into SPIFFS directory by placing the in a folder named "data" using the "ESP 32 Sketch data upload" tool.

I have been researching the forums and found that it is possibly and issue with the mkspiffs config file but I am not sure what to do exactly. I am using a MAC.

Any help greatly appreciated as I am about 10 hours in trying to fix this now.

Cheers

Sketch:

#include "FS.h"
#include <SPIFFS.h>
#include <SEPS525_OLED.h>
#include <Adafruit_GFX.h>
#include <SPI.h>

#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
#define col 160
#define row 128

SEPS525_OLED tft;

void setup() {

Serial.begin(115200);
tft.begin();
tft.fillScreen(BLACK);
SPIFFS.begin ();

}

void loop() {
bmpDraw("/160128_0.bmp", 0, 0);
delay(2000);
bmpDraw("/160128_1.bmp", 0, 0);
delay(2000);
}

#define BUFFPIXEL 20

void bmpDraw(char *filename, uint8_t x, uint8_t y) {

File bmpFile;
int bmpWidth, bmpHeight; // W+H in pixels
uint8_t bmpDepth; // Bit depth (currently must be 24)
uint32_t bmpImageoffset; // Start of image data in file
uint32_t rowSize; // Not always = bmpWidth; may have padding
uint8_t sdbuffer[3*BUFFPIXEL]; // pixel buffer (R+G+B per pixel)
uint8_t buffidx = sizeof(sdbuffer); // Current position in sdbuffer
boolean goodBmp = false; // Set to true on valid header parse
boolean flip = true; // BMP is stored bottom-to-top
int w, h, _row, _col;
uint8_t r, g, b;
uint32_t pos = 0, startTime = millis();

if((x >= col) || (y >= row)) return;

Serial.println();
Serial.print("Loading image '");
Serial.print(filename);
Serial.println(''');

// Open requested file on SD card
if ((bmpFile = SPIFFS.open(filename, "r")) == NULL) {
Serial.print("File not found");
return;
}else{if (bmpFile) {
int s = bmpFile.size();
Serial.printf("File Opened , Size=%d\r\n", s);}}
Serial.println(read16(bmpFile), HEX);
Serial.println(read32(bmpFile), HEX);
Serial.println(bmpFile, HEX);

// Parse BMP header
if(read16(bmpFile) == 0x4D42) { // BMP signature
Serial.print("File size: "); Serial.println(read32(bmpFile));
(void)read32(bmpFile); // Read & ignore creator bytes
bmpImageoffset = read32(bmpFile); // Start of image data
Serial.print("Image Offset: "); Serial.println(bmpImageoffset, DEC);
// Read DIB header
Serial.print("Header size: "); Serial.println(read32(bmpFile));
bmpWidth = read32(bmpFile);
bmpHeight = read32(bmpFile);
if(read16(bmpFile) == 1) { // # planes -- must be '1'
bmpDepth = read16(bmpFile); // bits per pixel
Serial.print("Bit Depth: "); Serial.println(bmpDepth);
if((bmpDepth == 24) && (read32(bmpFile) == 0)) { // 0 = uncompressed
goodBmp = true; // Supported BMP format -- proceed!
Serial.print("Image size: ");
Serial.print(bmpWidth);
Serial.print('x');
Serial.println(bmpHeight);

    // BMP rows are padded (if needed) to 4-byte boundary
    rowSize = (bmpWidth * 3 + 3) & ~3;
    rowSize = bmpWidth;
    // If bmpHeight is negative, image is in top-down order.
    // This is not canon but has been observed in the wild.
    if(bmpHeight < 0) {
      bmpHeight = -bmpHeight;
      flip      = false;
    }

    // Crop area to be loaded
    w = bmpWidth;
    h = bmpHeight;
    if((x+w-1) >= col)  w = col  - x;
    if((y+h-1) >= row) h = row - y;

    for (_row=0; _row<h; _row++) { // For each scanline...
      //tft.goTo(x, y+_row);

      // Seek to start of scan line.  It might seem labor-
      // intensive to be doing this on every line, but this
      // method covers a lot of gritty details like cropping
      // and scanline padding.  Also, the seek only takes
      // place if the file position actually needs to change
      // (avoids a lot of cluster math in SD library).
      if(flip) // Bitmap is stored bottom-to-top order (normal BMP)
        pos = bmpImageoffset + (bmpHeight - 1 - _row) * rowSize;
      else     // Bitmap is stored top-to-bottom
        pos = bmpImageoffset + _row * rowSize;
      if(bmpFile.position() != pos) { // Need seek?
        bmpFile.seek(pos);
        buffidx = sizeof(sdbuffer); // Force buffer reload
      }

      // optimize by setting pins now
      for (_col=0; _col<w; _col++) { // For each pixel...
        // Time to read more pixel data?
        if (buffidx >= sizeof(sdbuffer)) { // Indeed
          bmpFile.read(sdbuffer, sizeof(sdbuffer));
          buffidx = 0; // Set index to beginning
        }

        // Convert pixel from BMP to TFT format, push to display
        b = sdbuffer[buffidx++];
        g = sdbuffer[buffidx++];
        r = sdbuffer[buffidx++];

        tft.drawPixel(x+_col, y+_row, tft.color565(r,g,b));
        // optimized!
        //tft.pushColor(tft.color565(r,g,b));
      } // end pixel
    } // end scanline
    Serial.print("Loaded in ");
    Serial.print(millis() - startTime);
    Serial.println(" ms");
  } // end goodBmp
}

}

bmpFile.close();
if(!goodBmp) Serial.println("BMP format not recognized.");
}

// These read 16- and 32-bit types from the SD card file.
// BMP data is stored little-endian, Arduino is little-endian too.
// May need to reverse subscript order if porting elsewhere.

uint16_t read16(File &f) {
uint16_t result;
((uint8_t *)&result)[0] = f.read(); // LSB
((uint8_t *)&result)[1] = f.read(); // MSB

return result;
}

uint32_t read32(File &f) {
uint32_t result;
((uint8_t *)&result)[0] = f.read(); // LSB
((uint8_t *)&result)[1] = f.read();
((uint8_t *)&result)[2] = f.read();
((uint8_t *)&result)[3] = f.read(); // MSB
return result;
}

Debug Messages:

No debug messages appearing.
Serial monitor print out:

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
flash read err, 1000
ets_main.c 371
ets Jun 8 2016 00:22:57

rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:956
load:0x40078000,len:0
load:0x40078000,len:13076
entry 0x40078a58

Loading image '/160128_0.bmp'
File Opened , Size=61496
FFFF
FFFFFFFF
1
BMP format not recognized.

Loading image '/160128_1.bmp'
File Opened , Size=61494
FFFF
FFFFFFFF
1
BMP format not recognized.

[smacyas]

It is a bug
see: #1022

[davepl]

Try without the leading slash on the filename.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This stale issue has been automatically closed. Thank you for your contributions.