Search found 21 matches
- Sat Apr 22, 2023 8:54 pm
- Forum: Software & Programming
- Topic: .PIC images
- Replies: 56
- Views: 28609
Re: .PIC images
--------------------------------------------------------------- MODE 4 MODE 8 MODE 16 MODE 32 MODE 33 (Intel) (Motorola) --------------------------------------------------------------- Thanks for the list. Could you mark in this list what is an emulator and what is a real board? I ask this because ...
- Sun Apr 16, 2023 11:45 am
- Forum: Software & Programming
- Topic: .PIC images
- Replies: 56
- Views: 28609
Re: .PIC images
The mode 32 colour word is actually rrrrrggg.gggbbbbb, so the 5-bit to 6-bit only applies to the green part. Since the green part already has 6 bits, perhaps you mean that the transformation from 5 to 6 bits only applies to the red and blue parts? A simple value doubling or left shift will make the...
- Tue Apr 11, 2023 4:57 am
- Forum: Software & Programming
- Topic: .PIC images
- Replies: 56
- Views: 28609
Re: .PIC images
This would allow variable size QL graphics files without the need to fit, stretch or centre the source file if it is not 512x256 pixels. In other words, graphics files can be any size, not just 512x256 pixels. Added. Need to be tested. But the same text also mentions Bit Replication which was givin...
- Sun Apr 09, 2023 9:42 pm
- Forum: Software & Programming
- Topic: .PIC images
- Replies: 56
- Views: 28609
- Sat Apr 08, 2023 11:58 pm
- Forum: Software & Programming
- Topic: .PIC images
- Replies: 56
- Views: 28609
Re: .PIC images
Here is one way to convert Aurora mode 16 colours to 24 bit RGB, using a table I'm not familiar with assembler and I can't understand this code. Is it possible to translate this into pseudo-code? I may be wrong, correct me if so. The general color scheme is as follows: ---------- ------------------...
- Sat Apr 08, 2023 2:27 am
- Forum: Software & Programming
- Topic: .PIC images
- Replies: 56
- Views: 28609
Re: .PIC images
BTW. I can't find information on how the palette used is converted to RGB888. For example, for mode 16, I use this palette:
![Image](https://www.dadither.com/img/Mode16.png)
But what is the real palette?
Modes 32 and 33 use 5 and 6 bit colors, but how to correctly convert these colors to RGB888?
![Image](https://www.dadither.com/img/Mode16.png)
But what is the real palette?
Modes 32 and 33 use 5 and 6 bit colors, but how to correctly convert these colors to RGB888?
- Sat Apr 08, 2023 1:23 am
- Forum: Software & Programming
- Topic: .PIC images
- Replies: 56
- Views: 28609
Re: .PIC images
Could you provide renders in PNG or BMP format. Jpeg images have compression artifacts and I can't see all the pixels. I don't need all the images. I will be satisfied with one render of the mode 4, and one render of the mode 8.
- Sat Apr 08, 2023 12:29 am
- Forum: Software & Programming
- Topic: .PIC images
- Replies: 56
- Views: 28609
Re: .PIC images
I have attached 4 QL PIC files in both mode 4 (_pic4 file ending) and mode 8 (_pic8 file ending) I don't fully understand some of the details. Lets compare internal file header structure of astronaut.pic4 and astronaut.pic8. astronaut.pic4: Width: 330 Height: 294 BPL: 84 Mode: 0 Spare: 0 Mode 4 has...
- Fri Apr 07, 2023 5:14 pm
- Forum: Software & Programming
- Topic: .PIC images
- Replies: 56
- Views: 28609
Re: .PIC images
I have attached 4 QL PIC files in both mode 4 (_pic4 file ending) and mode 8 (_pic8 file ending) Could you also provide a rendering of your pic image. I mean how do they look on your QL monitor? It looks like that the pixel encoding method in pic8 files is different from that of standard SCR8 files...
- Fri Apr 07, 2023 2:45 pm
- Forum: Software & Programming
- Topic: .PIC images
- Replies: 56
- Views: 28609
Re: .PIC images
DaDither already uses PIC format for GD2 16/GD2 32/GD2 33 modes. If you want me to add PIC formats for QL 4/ QL 8 modes then provide me a sample of such images.