Add default limit to OLED dirty processing (#19068)
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2 changed files with 7 additions and 2 deletions
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@ -170,6 +170,10 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
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# define OLED_UPDATE_INTERVAL 50
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#endif
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#if !defined(OLED_UPDATE_PROCESS_LIMIT)
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# define OLED_UPDATE_PROCESS_LIMIT 1
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#endif
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typedef struct __attribute__((__packed__)) {
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uint8_t *current_element;
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uint16_t remaining_element_count;
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@ -300,8 +300,9 @@ void oled_render(void) {
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// Turn on display if it is off
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oled_on();
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uint8_t update_start = 0;
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while (oled_dirty) { // render all dirty blocks
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uint8_t update_start = 0;
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uint8_t num_processed = 0;
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while (oled_dirty && num_processed++ < OLED_UPDATE_PROCESS_LIMIT) { // render all dirty blocks (up to the configured limit)
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// Find next dirty block
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while (!(oled_dirty & ((OLED_BLOCK_TYPE)1 << update_start))) {
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++update_start;
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