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Buffer based OLED panning, write byte to buffer at arbitrary index (#8055)

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* Add buffer based single line pan, arbitrary byte write to buffer

* Change dirty mask to inverse of OLED_BLOCK_TYPE for future proofing larger buffer sizes

* Updating docs to include new functions

* Updating to clarify scroll vs pan
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brickbots 2020-03-06 16:52:39 -08:00 • committed by GitHub
parent 57de9e65ef
commit 833c5ae87a
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3 changed files with 38 additions and 0 deletions
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25
drivers/oled/oled_driver.c
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@ -428,6 +428,31 @@ void oled_write_ln(const char *data, bool invert) {
oled_advance_page(true);
}
void oled_pan(bool left) {
uint16_t i = 0;
for (uint16_t y = 0; y < OLED_DISPLAY_HEIGHT/8; y++) {
if(left) {
for (uint16_t x = 0; x < OLED_DISPLAY_WIDTH - 1; x++) {
i = y * OLED_DISPLAY_WIDTH + x;
oled_buffer[i] = oled_buffer[i+1];
}
} else {
for (uint16_t x = OLED_DISPLAY_WIDTH -1; x > 0; x--) {
i = y * OLED_DISPLAY_WIDTH + x;
oled_buffer[i] = oled_buffer[i-1];
}
}
}
oled_dirty = ~((OLED_BLOCK_TYPE)0);
}
void oled_write_raw_byte(const char data, uint16_t index) {
if (index > OLED_MATRIX_SIZE) index = OLED_MATRIX_SIZE;
if (oled_buffer[index] == data) return;
oled_buffer[index] = data;
oled_dirty |= (1 << (index / OLED_BLOCK_SIZE));
}
void oled_write_raw(const char *data, uint16_t size) {
if (size > OLED_MATRIX_SIZE) size = OLED_MATRIX_SIZE;
for (uint16_t i = 0; i < size; i++) {

4
drivers/oled/oled_driver.h
View file

@ -200,7 +200,11 @@ void oled_write(const char *data, bool invert);
// Advances the cursor to the next page, wiring ' ' to the remainder of the current page
void oled_write_ln(const char *data, bool invert);
// Pans the buffer to the right (or left by passing true) by moving contents of the buffer
void oled_pan(bool left);
void oled_write_raw(const char *data, uint16_t size);
void oled_write_raw_byte(const char data, uint16_t index);
#if defined(__AVR__)
// Writes a PROGMEM string to the buffer at current cursor position