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  • src/conio/bitmap_con.c

    From Deuc¿@VERT to Git commit to main/sbbs/master on Tuesday, January 21, 2025 20:55:04
    https://gitlab.synchro.net/main/sbbs/-/commit/0524805a17a52ec481ea3e4a
    Modified Files:
    src/conio/bitmap_con.c
    Log Message:
    Fix up cursor and blinking rates, step 1...

    For "PC" modes, cursor blinked at 1/16th of the VSYNC rate, so use
    the CGA timings, where were generally the slowest of the bunch...
    This means cursor blink at 3.745Hz, and character blink at 1.8725Hz.

    For Prestel, character blink was 0.75Hz with a 3:1 On:Off ratio.
    The cursor on the other hand was 1/32th the VSYNC and was generally
    PAL, so 1.5625Hz.

    I still need to dig into C64 and Atari modes, because they're likely
    way off now (assuming either supports blinking).
    ---
    þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net
  • From Deuc¿@VERT to Git commit to main/sbbs/master on Tuesday, January 21, 2025 21:16:20
    https://gitlab.synchro.net/main/sbbs/-/commit/7ae2f1b10c1b3b6cbe6be690
    Modified Files:
    src/conio/bitmap_con.c
    Log Message:
    Add C64/C128 blinking... 1.5Hz
    Blinking text is opposite of the cursor
    ---
    þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net
  • From Deuc¿@VERT to Git commit to main/sbbs/master on Tuesday, January 21, 2025 21:17:24
    https://gitlab.synchro.net/main/sbbs/-/commit/7079932ae67d523f69669bd2
    Modified Files:
    src/conio/bitmap_con.c
    Log Message:
    Fix previous commit.
    ---
    þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net
  • From Deuc¿@VERT to Git commit to main/sbbs/master on Tuesday, January 21, 2025 21:29:46
    https://gitlab.synchro.net/main/sbbs/-/commit/4837ce25ad3fe1d3df191296
    Modified Files:
    src/conio/bitmap_con.c
    Log Message:
    Atari doesn't blink?
    ---
    þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net
  • From Deuc¿@VERT to Git commit to main/sbbs/master on Tuesday, January 21, 2025 21:57:17
    https://gitlab.synchro.net/main/sbbs/-/commit/f8f00d183462aabc91a8d083
    Modified Files:
    src/conio/bitmap_con.c
    Log Message:
    Synchronize cursor and text blinking for PC modes.
    ---
    þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net
  • From Deuc¿@VERT to Git commit to main/sbbs/master on Wednesday, January 22, 2025 10:34:07
    https://gitlab.synchro.net/main/sbbs/-/commit/4be5cf7903e0c82736d01f95
    Modified Files:
    src/conio/bitmap_con.c
    Log Message:
    Move assignments for things only needed in the loop inside the loop
    ---
    þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net
  • From Deuc¿@VERT to Git commit to main/sbbs/master on Wednesday, January 22, 2025 14:58:20
    https://gitlab.synchro.net/main/sbbs/-/commit/64f325189d963a8f72c132e4
    Modified Files:
    src/conio/bitmap_con.c
    Log Message:
    Adjust Prestel cursor flash.

    It appears that it flashes at 1.5Hz with the off period synchronized
    to the blinking text off period.

    Still no idea what generates it though.
    ---
    þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net
  • From Deuc¿@VERT to Git commit to main/sbbs/master on Wednesday, January 22, 2025 16:22:44
    https://gitlab.synchro.net/main/sbbs/-/commit/33a7a24b4a9de16a671e7171
    Modified Files:
    src/conio/bitmap_con.c
    Log Message:
    Synchronize blink rate to real Model B

    Keyop provided a video of flashing stuff for me. This now
    synchronizes with that video. Can't get any better than that.
    ---
    þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net
  • From Deuc¿@VERT to Git commit to main/sbbs/master on Thursday, January 23, 2025 12:26:13
    https://gitlab.synchro.net/main/sbbs/-/commit/28ac10161def0dcdbbf5f9ec
    Modified Files:
    src/conio/bitmap_con.c
    Log Message:
    Split the happy path font rendering into separate function

    And merge the single/double height ones into the same function.
    Normalize all the types while I'm here.

    With this, the happy path draw_char_row_fast() is very simple and
    easy to keep updated, and all of the complexity goes into
    draw_char_row_slow().

    There seems to be around a 20% performance difference between them,
    but it can be hard to tell for sure because of the time spent
    cheating.

    Note that it doesn't appear to be worth cheating if we're going fast,
    but that's getting a bit too deep for my tastes.
    ---
    þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net
  • From Deuc¿@VERT to Git commit to main/sbbs/master on Thursday, January 23, 2025 13:10:37
    https://gitlab.synchro.net/main/sbbs/-/commit/744cf3ec4c3b757714225ae4
    Modified Files:
    src/conio/bitmap_con.c
    Log Message:
    It appears MSVC doesn't support the 25-year-old standard restrict qualifier
    ---
    þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net
  • From Deuc¿@VERT to Git commit to main/sbbs/master on Thursday, January 23, 2025 16:42:30
    https://gitlab.synchro.net/main/sbbs/-/commit/9c9ee83e0474eb3659ea9dda
    Modified Files:
    src/conio/bitmap_con.c
    Log Message:
    Fix double-height separated mosaic drawing

    Regression introduced in 47b6f7a72f42bbbe264ecf57a09b4bcd7de4139c
    ---
    þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net
  • From Deuc¿@VERT to Git commit to main/sbbs/master on Friday, January 24, 2025 10:39:27
    https://gitlab.synchro.net/main/sbbs/-/commit/a172bd4dbb7b95a480056173
    Modified Files:
    src/conio/bitmap_con.c
    Log Message:
    Add silly check to make coverity happy.

    This is in the fastpath, but it's on the slow side where I don't
    mind the occasional extra silly check.
    ---
    þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net