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authorGautham Yerroju <gautham.yerroju@gmail.com>2020-07-15 22:48:04 -0700
committerGitHub <noreply@github.com>2020-07-16 15:48:04 +1000
commit92d0a71af71973ac3f80398ed4f7f61dd97733b3 (patch)
treedb3eaf53df756a728633581968f72a026af0074c /drivers/oled
parent08b405e1e93fbd1aa9aa061ce4ee271b6ac9e60c (diff)
downloadqmk_firmware-92d0a71af71973ac3f80398ed4f7f61dd97733b3.tar.gz
qmk_firmware-92d0a71af71973ac3f80398ed4f7f61dd97733b3.zip
OLED driver function to set pixels (#9713)
* Add a function to set individual pixels * Add documentation for oled_write_pixel * use smaller data type for oled_write_pixel * Fix boundary check edge case * Update oled_write_pixel doc Co-authored-by: Ryan <fauxpark@gmail.com> Co-authored-by: Ryan <fauxpark@gmail.com>
Diffstat (limited to 'drivers/oled')
-rw-r--r--drivers/oled/oled_driver.c13
-rw-r--r--drivers/oled/oled_driver.h4
2 files changed, 17 insertions, 0 deletions
diff --git a/drivers/oled/oled_driver.c b/drivers/oled/oled_driver.c
index eedaedcd36..977b701783 100644
--- a/drivers/oled/oled_driver.c
+++ b/drivers/oled/oled_driver.c
@@ -462,6 +462,19 @@ void oled_write_raw(const char *data, uint16_t size) {
}
}
+void oled_write_pixel(uint8_t x, uint8_t y, bool on) {
+ if (x >= OLED_DISPLAY_WIDTH || y >= OLED_DISPLAY_HEIGHT) {
+ return;
+ }
+ uint16_t index = x + (y / 8) * OLED_DISPLAY_WIDTH;
+ if (on) {
+ oled_buffer[index] |= (1 << (y % 8));
+ } else {
+ oled_buffer[index] &= ~(1 << (y % 8));
+ }
+ oled_dirty |= (1 << (index / OLED_BLOCK_SIZE));
+}
+
#if defined(__AVR__)
void oled_write_P(const char *data, bool invert) {
uint8_t c = pgm_read_byte(data);
diff --git a/drivers/oled/oled_driver.h b/drivers/oled/oled_driver.h
index 3e5a5bcabe..af6e5a2b61 100644
--- a/drivers/oled/oled_driver.h
+++ b/drivers/oled/oled_driver.h
@@ -206,6 +206,10 @@ 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);
+// Sets a specific pixel on or off
+// Coordinates start at top-left and go right and down for positive x and y
+void oled_write_pixel(uint8_t x, uint8_t y, bool on);
+
#if defined(__AVR__)
// Writes a PROGMEM string to the buffer at current cursor position
// Advances the cursor while writing, inverts the pixels if true