So, the driver is almost the same thing as ‘raw’ mode for a TTY, I think.
Just so we’re on the same page, when you say ‘cursor positioning’, what exactly are you thinking? If you mean providing a gotoxy() routine, then yeah, I think that’s good for the driver. On the other hand, if you mean advancing the cursor after printing a character, then I think we should probably wrap that in with the ANSI code.
I think the driver should be there to handle the ugly stuff like:<li>set/get a character or color attribute from the text buffer.</li><li>scroll the text buffer (whether or not the buffer size matches the visible screen)</li><li>own the irqHandler that rebuilds Vera’s copy of the text.</li><li>(possibly) provide a sprite based cursor and a routine to position it / turn it on or off.</li><li>provide a kprint(x, y, message) type of routine that can fling a string at the screen for debugging purposes.</li>
(1/2)
Becky /
npub1dm…m5tze
2024-06-18 17:55:07
in reply to nevent1q…gk8m
Author Public Key
npub1dmy8u892wudp6vyk8wsku6s0fqyl0dcq0spqwz7m7m5fkd96544srm5tzePublished at
2024-06-18 17:55:07Event JSON
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"content": "So, the driver is almost the same thing as ‘raw’ mode for a TTY, I think.\n\nJust so we’re on the same page, when you say ‘cursor positioning’, what exactly are you thinking? If you mean providing a gotoxy() routine, then yeah, I think that’s good for the driver. On the other hand, if you mean advancing the cursor after printing a character, then I think we should probably wrap that in with the ANSI code.\n\nI think the driver should be there to handle the ugly stuff like:\u003cli\u003eset/get a character or color attribute from the text buffer.\u003c/li\u003e\u003cli\u003escroll the text buffer (whether or not the buffer size matches the visible screen)\u003c/li\u003e\u003cli\u003eown the irqHandler that rebuilds Vera’s copy of the text.\u003c/li\u003e\u003cli\u003e(possibly) provide a sprite based cursor and a routine to position it / turn it on or off.\u003c/li\u003e\u003cli\u003eprovide a kprint(x, y, message) type of routine that can fling a string at the screen for debugging purposes.\u003c/li\u003e\n\n(1/2)",
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