ComputerEyes Raw Data file format - Revision history

AtariWikiSysop: 5 revisions imported

2018-06-03T22:50:57Z

5 revisions imported

Lp: corrected medium resolution bit ordering, based on PicSwitch

2017-01-30T02:47:52Z

corrected medium resolution bit ordering, based on PicSwitch

Lp: updated info

2017-01-29T16:45:21Z

updated info

Lp: update high res info

2017-01-29T16:43:01Z

update high res info

Lp: Updated information

2017-01-03T00:58:21Z

Updated information

Lp: New page

2017-01-02T23:14:44Z

New page

New page

<pre>
ComputerEyes Raw Data *.CE1 (low resolution)
*.CE2 (medium resolution)

1 long [$45594553 or "EYES"]
1 word resolution [0 = low res, 1 = medium res]
8 words ?
If resolution = 0 {
64000 bytes red plane, 320 x 200, 1 pixel per byte
64000 bytes green plane, 320 x 200, 1 pixel per byte
64000 bytes blue plane, 320 x 200, 1 pixel per byte
------------
192022 bytes total
}
else If resolution = 1 {
128000 words 640 x 200, 1 pixel per word
------------
256022 bytes total
}

This is almost two formats in one:

Low resolution:

The planes are arranged vertically, instead of horizontally.
The first byte is the red component of pixel (0,0), the second is
(0,1),
and the third (0,2). The 201st corresponds to (1,0), etc. The 64001st
byte is the green component of (0,0).
Only the low six bits of each byte are used.

Medium resolution:

The picture is arranged vertically, instead of horizontally.
The first word is pixel (0,0), the second is (0,1), and the third
(0,2). The 200th is (1,0) etc.
Each word is divided up into the RGB values for the corresponding
pixel, as follows:

Bit: (MSB) 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 (LSB)
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
0 B4 B3 B2 B1 B0 G4 G3 G2 G1 G0 R4 R3 R2 R1 R0

Bit 15 is not used.
</pre>
Back to [[ST Picture Formats]]

@@ Line 62: / Line 62: @@
          (0,4). The 200th is (0,1), followed by (0,3), and (0,5), etc.
            Each byte represent a value from 0 to 191, which is the result
-         of 6-bits each of R, G, and B added together, but not divided.
+         of 6-bits each of R, G, and B added together, but not divided by 3.
 In order to reduce overhead the pixel arrangement matches the devices scanning
-sequence. It's also assumed the divide was left out of the high resolution
+sequence. It's also assumed the divide by 3 was left out of the high resolution
-dump for the same reason. The re-arrangement of the pixels and the divide could
+dump for the same reason. The re-arrangement of the pixels and the divide
-be done during post processing anyway.
+could be done during post processing anyway.
 These files are created by CE.PRG which comes with the ComputerEyes

← Older revision	Revision as of 22:50, 3 June 2018
(No difference)

@@ Line 52: / Line 52: @@
            Bit:  (MSB) 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 (LSB)
                        -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
-B4 B3 B2 B1 B0 G4 G3 G2 G1 G0 R4 R3 R2 R1 R0
+R4 R3 R2 R1 R0 G4 G3 G2 G1 G0 B4 B3 B2 B1 B0
          Bit 15 is not used.

@@ Line 37: / Line 37: @@
             The planes are arranged vertically, instead of horizontally.
-         The first byte is the red component of pixel (0,0), the second is
+         The first byte is the red component of pixel (0,0), the second is (0,1),
          and the third (0,2).  The 201st corresponds to (1,0), etc.  The 64001st
          byte is the green component of (0,0).
@@ Line 59: / Line 58: @@
          High resolution:
-            Image layout not yet known. Appears to be 6-bit grayscale.
+            The picture is arranged vertically, instead of horizontally.
 These files are created by CE.PRG which comes with the ComputerEyes

@@ Line 2: / Line 2: @@
 ComputerEyes Raw Data    *.CE1 (low resolution)
                           *.CE2 (medium resolution)
 long          [$45594553 or "EYES"]
-word          resolution [0 = low res, 1 = medium res]
+word          resolution [0 = low res, 1 = medium res, 2 = high res]
-words         ?
+word          brightness adjust [0-191]
 If resolution = 0 {
 bytes     red plane, 320 x 200, 1 pixel per byte
@@ Line 15: / Line 23: @@
 else If resolution = 1 {
 words    640 x 200, 1 pixel per word
 ------------
 bytes    total
+}
-    This is almost two formats in one:
+    This is almost three formats in one:
          Low resolution:
@@ Line 43: / Line 56: @@
          Bit 15 is not used.
 </pre>
 Back to [[ST Picture Formats]]