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[display] Small display print performance improvement (#4788)

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Fabian 2023-05-10 02:47:24 +02:00 committed by GitHub
parent 535003014b
commit a8b821c213
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1 changed files with 8 additions and 4 deletions
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8
esphome/components/display/display_buffer.cpp
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@ -282,13 +282,17 @@ void DisplayBuffer::print(int x, int y, Font *font, Color color, TextAlign align
int scan_x1, scan_y1, scan_width, scan_height; int scan_x1, scan_y1, scan_width, scan_height;
glyph.scan_area(&scan_x1, &scan_y1, &scan_width, &scan_height); glyph.scan_area(&scan_x1, &scan_y1, &scan_width, &scan_height);
for (int glyph_x = scan_x1; glyph_x < scan_x1 + scan_width; glyph_x++) { {
for (int glyph_y = scan_y1; glyph_y < scan_y1 + scan_height; glyph_y++) { const int glyph_x_max = scan_x1 + scan_width;
const int glyph_y_max = scan_y1 + scan_height;
for (int glyph_x = scan_x1; glyph_x < glyph_x_max; glyph_x++) {
for (int glyph_y = scan_y1; glyph_y < glyph_y_max; glyph_y++) {
if (glyph.get_pixel(glyph_x, glyph_y)) { if (glyph.get_pixel(glyph_x, glyph_y)) {
this->draw_pixel_at(glyph_x + x_at, glyph_y + y_start, color); this->draw_pixel_at(glyph_x + x_at, glyph_y + y_start, color);
} }
} }
} }
}
x_at += glyph.glyph_data_->width + glyph.glyph_data_->offset_x; x_at += glyph.glyph_data_->width + glyph.glyph_data_->offset_x;