Buffer based OLED panning, write byte to buffer at arbitrary index (#8055)
* 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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@ -221,6 +221,12 @@ void oled_write(const char *data, bool invert);
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// Advances the cursor to the next page, wiring ' ' to the remainder of the current page
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void oled_write_ln(const char *data, bool invert);
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// Pans the buffer to the right (or left by passing true) by moving contents of the buffer
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// Useful for moving the screen in preparation for new drawing
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// oled_scroll_left or oled_scroll_right should be preferred for all cases of moving a static
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// image such as a logo or to avoid burn-in as it's much, much less cpu intensive
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void oled_pan(bool left);
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// Writes a PROGMEM string to the buffer at current cursor position
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// Advances the cursor while writing, inverts the pixels if true
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// Remapped to call 'void oled_write(const char *data, bool invert);' on ARM
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@ -235,6 +241,9 @@ void oled_write_ln_P(const char *data, bool invert);
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// Writes a string to the buffer at current cursor position
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void oled_write_raw(const char *data, uint16_t size);
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// Writes a single byte into the buffer at the specified index
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void oled_write_raw_byte(const char data, uint16_t index);
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// Writes a PROGMEM string to the buffer at current cursor position
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void oled_write_raw_P(const char *data, uint16_t size);
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@ -428,6 +428,31 @@ void oled_write_ln(const char *data, bool invert) {
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oled_advance_page(true);
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}
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void oled_pan(bool left) {
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uint16_t i = 0;
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for (uint16_t y = 0; y < OLED_DISPLAY_HEIGHT/8; y++) {
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if(left) {
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for (uint16_t x = 0; x < OLED_DISPLAY_WIDTH - 1; x++) {
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i = y * OLED_DISPLAY_WIDTH + x;
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oled_buffer[i] = oled_buffer[i+1];
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}
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} else {
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for (uint16_t x = OLED_DISPLAY_WIDTH -1; x > 0; x--) {
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i = y * OLED_DISPLAY_WIDTH + x;
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oled_buffer[i] = oled_buffer[i-1];
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}
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}
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}
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oled_dirty = ~((OLED_BLOCK_TYPE)0);
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}
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void oled_write_raw_byte(const char data, uint16_t index) {
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if (index > OLED_MATRIX_SIZE) index = OLED_MATRIX_SIZE;
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if (oled_buffer[index] == data) return;
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oled_buffer[index] = data;
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oled_dirty |= (1 << (index / OLED_BLOCK_SIZE));
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}
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void oled_write_raw(const char *data, uint16_t size) {
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if (size > OLED_MATRIX_SIZE) size = OLED_MATRIX_SIZE;
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for (uint16_t i = 0; i < size; i++) {
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@ -200,7 +200,11 @@ void oled_write(const char *data, bool invert);
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// Advances the cursor to the next page, wiring ' ' to the remainder of the current page
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void oled_write_ln(const char *data, bool invert);
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// Pans the buffer to the right (or left by passing true) by moving contents of the buffer
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void oled_pan(bool left);
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void oled_write_raw(const char *data, uint16_t size);
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void oled_write_raw_byte(const char data, uint16_t index);
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#if defined(__AVR__)
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// Writes a PROGMEM string to the buffer at current cursor position
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