Untitled

Starting GBM test...
DRM device opened (fd: 3)
GBM device created successfully
Buffer created successfully
Buffer mapped successfully:
  data: 0x7fbac4047000
  map_data: 0x7fbac4047000
  stride: 256 bytes
Writing test pattern...
Pattern written
Reading back test pixels:
  Pixel[0,0] = 0x00000080
  Pixel[1,0] = 0x00040080
  Pixel[2,0] = 0x00080080
  Pixel[0,1] = 0x00000480
  Pixel[1,1] = 0x00040480
  Pixel[2,1] = 0x00080480
  Pixel[0,2] = 0x00000880
  Pixel[1,2] = 0x00040880
  Pixel[2,2] = 0x00080880
Unmapping buffer...
Unmap successful
Cleaning up...
Test completed successfully!