Still a line of dots at the very top and across the middle.mode13.bin (37.0 KB)
Whatâs in âMy_settings.hâ?
Forgot to mention that the 2D scroller is named as âExamples\Scroll2Layersâ. Jonne has merged that to PokittoLib.
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/**************************************************************************/
/*!
@file My_settings.h
@author XX
@section HOW TO USE My_settings
My_settings can be used to set project settings inside the mbed online IDE
*/
/**************************************************************************/
#ifndef MY_SETTINGS_H
#define MY_SETTINGS_H
#define PROJ_HIRES 0 //1 = high resolution (220x176) , 0 = low resolution fast mode (110x88)
#define PROJ_ENABLE_SOUND 0 // 0 = all sound functions disabled
#define PROJ_MODE13 1 // Spinal's mode13 enabled
#define PROJ_SHOW_FPS_COUNTER
#endif
Here is the latest test version of my video player, itâs target framerate is 16 FPS, which is stored in the video header, as is other details like frame width and height etc.
movie.zip (5.8 MB)
This test will let you choose between the two file systems to play the video, one is fat and beeps a bit, the other doesnât beep, but is far too slow.
2 Likes
I have been following this topic and the one about the scroller in 3d with great interest but I am a bit lost now:
Does only the low res mode benefit from these speed optimizations and can something similar been done to the hi res mode or is it already done?
Also are these optimizations already available in the latest version of pokittolib or not?
We really need (or at least I need) a good documentation of the different screen modes and their specifications, advantages, disadvantages,âŠ
Maybe a specific topic about the pokittolib and all of its updates would also come in handy (because I do not entirely understand the added comments in the github repository)
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Good points. Afaik, optimisations concern the Mode 2 (110x88x16 colors) and the Mode 13 only (@FManga ?) . They are in Pokittolib already. You can try the âScroll2Layersâ example.
The code can be optimized probably in all modes, but it is a huge task. In a hobby project it is best to do one by one, when there is enough demand, and when the coder has time for it.
I am also a bit lost about all the color modes we have (and which of them are really working). Should we make a separate thread about it or even a wiki document?
Something like:
- Name and features (resolution, color count, sprite integration, tiles)
- Supported by drawing primitives (DrawBitmap, DrawLine, etc.)
- How to enable
- Examples or games that are using it
- A code snippet or short example program of usage
- Status: initial / working / optimized/ etc.
6 Likes
Is there demand for mode 1 to get a similar treatment to modes 2 and 13?
Thereâs a minor bug in 2 and 13, which I intend to address soon. I could have a look at another mode then.
This would be very useful!
I donât full understand the reason we need so many screen modes. I would think just 3 or 4 would be able to do everything.
What is mode 1?
Mode 1, aka MODE_HI_4COLOR or PROJ_HIRES. Isnât that the one you were refering to?
Yes indeed 
I had no idea that this was mode 1.
I am currently trying to do a game in mode 1: with 11 sprites I am getting ±50 fps which seems fast enough.
I donât know if anyone else is using mode 1?
It also depends on how much work this would take. If this speed optimization is easily done, then I would say go for it. Otherwise we should maybe see if other people would like this as wellâŠ
You might want to take a quick look at a before-and-after of mode13âs optimization. 
Mode 1 involves more code than 2 and 13 combined.
1 Like
I agree.
I can remember hires mode (220x176@4 colours) and lores mode (110x88@16 colours) but never any others.
The reason we have/need so many screen modes is because of differences in speed, memory and capabilities.
We havenât even got a tile mode yet.
However, I think if we had all the different modes documented we might find that some of them are redundant.
I had a go at optimizing mode 1 (high res, 4 colors) and sent a PR. Mode 1 has two âsub-modesâ: with and without sprites. I only looked at the no-sprites part of the code.
To test, hereâs @ensonicâs Mandelbrot demo (with some modifications).
After itâs done calculating, press and hold A to see the FPS.
mandelbrot.bin (44.8 KB)
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119 FPS
You crazy voodoo guy you
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What movie is that from?
Both gifs are from Live And Let Die (James Bond).
Roger Mooreâs first outing as Bond, and one of the only two films without âQâ in it.
Good theme tune. Odd, but good.
When you were young and your heart was an open book,
you used to say live and let live.
(you know you did, you know you did, you know you didâŠ)
But if this ever-changing world in which we live in makes you give in and cryâŠ
say live and let die!
Youtube link.
(Guns and roses also did a variation of it. Thatâs here in case anyoneâs interested.)
2 Likes
I knew about the song yet, somehow, I missed the movie. o_O