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roll-ups according to specs

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This commit is contained in:
Ruslan Kuchumov 2014-05-28 17:40:05 +00:00
parent b81cdbc14d
commit 3c8db9b231
1 changed files with 16 additions and 18 deletions
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34
src/608.c
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@ -816,31 +816,29 @@ void handle_command(/*const */ unsigned char c1, const unsigned char c2, struct
}
erase_memory(context, false);
// Cursor position only reset if not already in rollup.
// If no Preamble Address Code is received, the base row shall default to
// Row 15 or, ifa roll-up caption is currently displayed, to the same
//base row last received, and the cursor shall be placed at Column 1.
//" This rule is meant to be applied only when no roll-up caption is
// currently displayed,
if (context->mode == MODE_FAKE_ROLLUP_1 ||
context->mode == MODE_ROLLUP_2 ||
context->mode == MODE_ROLLUP_3 ||
context->mode == MODE_ROLLUP_4)
{
context->cursor_row = context->rollup_base_row;
context->cursor_column = 0;
}
// If the reception of data for a row is interrupted by data for the alternate
// data channel or for text mode, the display of caption text will resume from the same
// cursor position if a roll-up caption command is received and no PAC is given [...]
if (context->mode != MODE_TEXT)
else if (context->mode != MODE_TEXT)
{
context->cursor_row = 14; // Default if the previous mode wasn't roll up already.
context->cursor_column = 0;
}
else
{
// Cursor position only reset if not already in rollup.
// If no Preamble Address Code is received, the base row shall default to
// Row 15 or, ifa roll-up caption is currently displayed, to the same
//base row last received, and the cursor shall be placed at Column 1.
//" This rule is meant to be applied only when no roll-up caption is
// currently displayed,
if (context->mode != MODE_FAKE_ROLLUP_1 &&
context->mode != MODE_ROLLUP_2 &&
context->mode != MODE_ROLLUP_3 &&
context->mode == MODE_ROLLUP_4)
{
context->cursor_row = context->rollup_base_row;
context->cursor_column = 0;
}
}
switch (command)
{
case COM_FAKE_RULLUP1: