Graphical Displays with PBP3

**richard** · - 22nd February 2024, 23:06

bmp bug fix

**spcw1234** · - 23rd February 2024, 18:45

Originally Posted by richard

bmp bug fix

Working much better, but in my case it is cropping 6 columns off of the right side of the image (110x64). Using the pbp file I uploaded here

Here are 2 images of what it should look like (using SSDBM vs what is being displayed using DMDBMP.

Name: 20240222_111640.jpg
Views: 41563
Size: 343.9 KB

Name: 20240222_111640.jpg
Views: 41563
Size: 343.9 KB

Name: 20240223_133312.jpg
Views: 41627
Size: 322.1 KB

**richard** · - 23rd February 2024, 19:34

the bmp image width needs to be a multiple of 8 by the look of it
post the original bmp image if you want me to look further into it

**spcw1234** · - 23rd February 2024, 22:08

Ok, I assume that is due to the horizontal vs vertical byte layout? I know on the SSDBM you said height must be multiple of 8 which I have been adhering to. I'll either stick to using the SSDBM with this driver as it seems to do exactly what I need or revise the bitmaps to make width a multiple of 8.

**richard** · - 24th February 2024, 00:03

i have had a look at how those programs [lcdassist and glcd tool] manage the remainder bits when a bitmap is not an 8bit multiple in width
and it defeats me , i cannot get how the "stray" bits of the image width are packed into the data
if you lay the data out to match the actual width x height as i have done here
[the last column i filled in manually only partially to get an idea of what the data needs to look like ]
the "left over" 48 bytes at the end somehow represents the extreme rhs 6 bits , i don't see how to extract the data correctly.
6 bits * 48 bytes is 384 bits , the stray 6 bits of width x 64 lines of height is 384 bits so there is enough information at least.
[assuming i have not misconstrued the original image]

Code:

OneIcon: '110x64 horiz
@ db 112, 0x40 
@ db 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,0xfc
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x04
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x04
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x04
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x04
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x04
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x04
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x04
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x04
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x04
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0xFF, 0xFF, 0x00, 0x00, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xFF, 0xFF, 0x80, 0x00, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xFF, 0xFF, 0x80, 0x00, 0x00,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xFF, 0xFF, 0x80, 0x00, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xFF, 0xFF, 0xC0, 0x00, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xFF, 0xFF, 0xC0, 0x00, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xFF, 0xFF, 0xE0, 0x00, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xF0, 0x00, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xF0, 0x00, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3F, 0xFF, 0xF8, 0x00, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3F, 0xFF, 0xF8, 0x00, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F, 0xFF, 0xFE, 0x00, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0xFF, 0xFF, 0x00, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0xFF, 0xFF, 0x80, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xFF, 0xFF, 0x80, 0x00  ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xFF, 0xFF, 0xC0, 0x00  ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xFF, 0xFF, 0xE0, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7F, 0xFF, 0xF0, 0x00  ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3F, 0xFF, 0xFC, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F, 0xFF, 0xFE, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0xFF, 0xFF, 0x80 ,0
@ db 0x87, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xC0 ,0
@ db 0x87, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF8,0
@ db 0x87, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC ,0
@ db 0x87, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF  ,0
@ db 0x87, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF  ,0
@ db 0x87, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF  ,0
@ db 0x87, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF  ,0
@ db 0x87, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF  ,0
@ db 0x87, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF  ,0
@ db 0x87, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ,0
@ db 0x87, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF  ,0
@ db 0x87, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ,0
@ db 0x87, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ,0
@ db 0x87, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ,0
@ db 0x87, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ,0
@ db 0x87, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ,0
@ db 0x87, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ,0
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x04
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x04
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x04
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x04
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x04
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x04
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x04
@ db 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,0x04
@ db 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,0xfc


'@ db 0xFC, 0x01, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x04, 0x00, 0x03, 0x00, 0x01, 0x00, 0x04, 0x00
'@ db 0x00, 0x00, 0x03, 0x00, 0x03, 0x00, 0x01, 0x00, 0x11, 0x00, 0x00, 0x00, 0x18, 0x00, 0x01, 0x00
'@ db 0x1A, 0x00, 0x04, 0x00, 0x28, 0x00, 0x02, 0x00, 0x38, 0x00, 0x00, 0x00, 0x4A, 0x02, 0x00, 0x00

**spcw1234** · - 24th February 2024, 16:15

Is there a way to do 90 degree screen rotation (using the display in portrait mode) for the text using fonts to be displayed correct?

Changing the SSDc $20 address to $01 seems to corrupt everything, so I'm not sure if I am going down the correct path with that, or if there is a simple way to accomplish this already built in?

**spcw1234** · - 24th February 2024, 18:54

The display layout still isn't quite right. Here is a simple program that displays a 16x16 image in all 4 corners the ones on the left side are good, but the right side locations are wrong.

Code:

'PIC18F26K22
#CONFIG
  CONFIG  FOSC = INTIO67
  CONFIG  PLLCFG = ON
  CONFIG  PRICLKEN = ON
  CONFIG  FCMEN = OFF
  CONFIG  IESO = OFF
  CONFIG  PWRTEN = ON
  CONFIG  BOREN = SBORDIS
  CONFIG  BORV = 190
  CONFIG  WDTEN = ON
  CONFIG  WDTPS = 32768
  CONFIG  CCP2MX = PORTC1
  CONFIG  PBADEN = OFF
  CONFIG  CCP3MX = PORTB5                                
  CONFIG  T3CMX = PORTC0
  CONFIG  HFOFST = ON
  CONFIG  P2BMX = PORTB5
  CONFIG  MCLRE = EXTMCLR
  CONFIG  STVREN = ON
  CONFIG  LVP = OFF
  CONFIG  XINST = OFF
  CONFIG  DEBUG = OFF
  CONFIG  CP0 = OFF
  CONFIG  CP1 = OFF
  CONFIG  CP2 = OFF
  CONFIG  CP3 = OFF
  CONFIG  CPB = OFF
  CONFIG  CPD = OFF
  CONFIG  WRT0 = OFF
  CONFIG  WRT1 = OFF
  CONFIG  WRT2 = OFF
  CONFIG  WRT3 = OFF
  CONFIG  WRTC = OFF
  CONFIG  WRTB = OFF
  CONFIG  WRTD = OFF
  CONFIG  EBTR0 = OFF
  CONFIG  EBTR1 = OFF
  CONFIG  EBTR2 = OFF
  CONFIG  EBTR3 = OFF
  CONFIG  EBTRB = OFF
#ENDCONFIG       
DEFINE OSC 64
    clear
    ssd1306_addr con $78 
    #DEFINE colours 1   ;1 mono 2 rg or 3 rgb
    width  con 128      
    height con 64      
    h_offset con 0
    
    include "grx.pbpMOD" 
    include "SSD1306.pbpMOD"
    BUFF     VAR BYTE[32]
    ANSELB=0
    ANSELC=0
    ANSELA=0
    OSCCON=$70
    OSCTUNE.6=1
    gosub glcd_init
    gosub grf_clr
    gosub show 

main:     ' Rotate icon clockwise around display corners
    DMDBMP 0,0,TestIcon       'top left 16x16 CORRECT PLACEMENT!
    gosub show
    pause 1000
    gosub grf_clr
    gosub show
    
    DMDBMP 111,0,TestIcon       'top right 16x16 WRONT PLACEMENT!
    gosub show
    pause 1000
    gosub grf_clr
    gosub show   
    
    DMDBMP 111,47,TestIcon       'bottom right 16x16 WRONG PLACEMENT!
    gosub show
    pause 1000
    gosub grf_clr
    gosub show   

    DMDBMP 0,47,TestIcon       'bottom left 16x16 CORRECT PLACEMENT!
    gosub show
    pause 1000
    gosub grf_clr
    gosub show   
goto main 
 
end

TestIcon:
@ db 0x10,0x10 ;16x16
@ db 0xFF,0xFF;
@ db 0xC0,0x03;
@ db 0xA0,0x05;
@ db 0x90,0x09;
@ db 0x88,0x11;
@ db 0x84,0x21;
@ db 0x82,0x41;
@ db 0x81,0x81;
@ db 0x81,0x81;
@ db 0x82,0x41;
@ db 0x84,0x21;
@ db 0x88,0x11;
@ db 0x90,0x09;
@ db 0xA0,0x05;
@ db 0xC0,0x03;
@ db 0xFF,0xFF;