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PortaPack: Improve speed of frequency rendering.

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To reduce impact on hackrf_sweep speed.
This commit is contained in:
Jared Boone
2019-03-20 16:33:32 -07:00
parent ddec31c0a2
commit 84463eb0e1
1 changed files with 21 additions and 11 deletions
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32
firmware/common/ui_portapack.c
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@ -369,29 +369,39 @@ static void portapack_ui_init(void) {
}
static void portapack_ui_set_frequency(uint64_t frequency) {
static char last[10] = " ";
ui_point_t point = { 240 - 20, 16 };
uint64_t value = frequency;
char s[10];
for(int i=0; i<10; i++) {
const char c = '0' + value % 10;
s[i] = ((i>=6) && (value == 0)) ? ' ' : c;
value /= 10;
}
for(int i=0; i<10; i++) {
const char c = s[i];
const ui_font_t* const font = (i > 5) ? &font_fixed_24x19 : &font_fixed_16x14;
const ui_bitmap_t glyph = portapack_font_glyph(font, c);
point.x -= glyph.size.width;
point.x -= font->glyph_size.width;
if( (i==3) || (i==6) || (i==9) ) {
point.x -= 4;
}
if( (i>=6) && (value == 0) ) {
/* Blank out leading zeros. */
const ui_rect_t rect = { point, glyph.size };
portapack_fill_rectangle(rect, color_background);
} else {
portapack_draw_bitmap(point, glyph, color_foreground, color_background);
}
if( c != last[i] ) {
const ui_bitmap_t glyph = portapack_font_glyph(font, c);
value /= 10;
if( c == ' ' ) {
/* Blank out leading zeros. */
const ui_rect_t rect = { point, glyph.size };
portapack_fill_rectangle(rect, color_background);
} else {
portapack_draw_bitmap(point, glyph, color_foreground, color_background);
}
last[i] = c;
}
}
}