Crash_Override/MMDVMHost-Private
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improve refreshing display

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Display space character with DCV command to clear screen, but this command is
very slow. I tested filling whole 160x128 area with 8x16 character by DCV16
command, it took 540msec.

This is the worst case, but display refresh period has extended to 600ms
for safety.

To clear screen, use BOXF command instead. And, reduced issuing DCV command.
This commit is contained in:
SASANO Takayoshi 2020-01-18 06:29:49 +09:00
parent 95c1bbb8e6
commit 60e82737b9
1 changed files with 10 additions and 4 deletions
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14
TFTSurenoo.cpp
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@ -67,7 +67,7 @@ enum LcdColour {
// This module sometimes ignores display command (too busy?),
// so supress display refresh
#define REFRESH_PERIOD 250 // msec
#define REFRESH_PERIOD 600 // msec
#define STR_CRLF "\x0D\x0A"
#define STR_DMR "DMR"
@ -352,8 +352,6 @@ void CTFTSurenoo::setLineBuffer(char *buf, const char *text, int maxchar)
for (i = 0; i < maxchar && text[i] != '\0'; i++)
buf[i] = text[i];
for (; i < maxchar; i++)
buf[i] = ' ';
buf[i] = '\0';
m_refresh = true;
@ -376,6 +374,11 @@ void CTFTSurenoo::refreshDisplay(void)
{
if (!m_refresh) return;
// clear display
::snprintf(m_temp, sizeof(m_temp), "BOXF(%d,%d,%d,%d,%d);",
0, 0, X_WIDTH - 1, Y_WIDTH - 1, BG_COLOUR);
m_serial->write((unsigned char*)m_temp, ::strlen(m_temp));
// mode line
::snprintf(m_temp, sizeof(m_temp), "DCV%d(%d,%d,'%s',%d);",
MODE_FONT_SIZE, 0, 0, m_lineBuf, MODE_COLOUR);
@ -383,10 +386,13 @@ void CTFTSurenoo::refreshDisplay(void)
// status line
for (int i = 0; i < STATUS_LINES; i++) {
char *p = m_lineBuf + statusLine_offset(i);
if (!::strlen(p)) continue;
::snprintf(m_temp, sizeof(m_temp), "DCV%d(%d,%d,'%s',%d);",
STATUS_FONT_SIZE, 0,
STATUS_MARGIN + STATUS_FONT_SIZE * i,
m_lineBuf + statusLine_offset(i), FG_COLOUR);
p, FG_COLOUR);
m_serial->write((unsigned char*)m_temp, (unsigned int)::strlen(m_temp));
}