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AP_OSD: added runtime font switching

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This commit is contained in:
Andrew Tridgell 2018-07-09 19:30:21 +10:00
parent 5682cef162
commit 64fae25882
2 changed files with 6 additions and 1 deletions
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6
libraries/AP_OSD/AP_OSD_MAX7456.cpp
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@ -159,7 +159,8 @@ bool AP_OSD_MAX7456::update_font()
uint32_t font_size;
uint8_t updated_chars = 0;
char fontname[] = "font0.bin";
fontname[4] = get_font_num() + '0';
last_font = get_font_num();
fontname[4] = last_font + '0';
uint8_t *font_data = AP_ROMFS::find_decompress(fontname, font_size);
if (font_data == nullptr || font_size != NVM_RAM_SIZE * 256) {
return false;
@ -345,6 +346,9 @@ void AP_OSD_MAX7456::reinit()
void AP_OSD_MAX7456::flush()
{
if (last_font != get_font_num()) {
update_font();
}
check_reinit();
transfer_frame();
}

1
libraries/AP_OSD/AP_OSD_MAX7456.h
View File

@ -59,6 +59,7 @@ private:
uint8_t video_signal_reg;
bool initialized;
uint8_t last_font;
static const uint8_t video_lines_ntsc = 13;
static const uint8_t video_lines_pal = 16;