diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/oled/oled_driver.c | 48 |
1 files changed, 31 insertions, 17 deletions
diff --git a/drivers/oled/oled_driver.c b/drivers/oled/oled_driver.c index 0e15c3c4b2..0b24a987de 100644 --- a/drivers/oled/oled_driver.c +++ b/drivers/oled/oled_driver.c @@ -75,8 +75,14 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. #define CHARGE_PUMP 0x8D // Misc defines -#define OLED_BLOCK_COUNT (sizeof(OLED_BLOCK_TYPE) * 8) -#define OLED_BLOCK_SIZE (OLED_MATRIX_SIZE / OLED_BLOCK_COUNT) +#ifndef OLED_BLOCK_COUNT +# define OLED_BLOCK_COUNT (sizeof(OLED_BLOCK_TYPE) * 8) +#endif +#ifndef OLED_BLOCK_SIZE +# define OLED_BLOCK_SIZE (OLED_MATRIX_SIZE / OLED_BLOCK_COUNT) +#endif + +#define OLED_ALL_BLOCKS_MASK (((((OLED_BLOCK_TYPE)1 << (OLED_BLOCK_COUNT - 1)) - 1) << 1) | 1) // i2c defines #define I2C_CMD 0x00 @@ -212,7 +218,7 @@ __attribute__((weak)) oled_rotation_t oled_init_user(oled_rotation_t rotation) { void oled_clear(void) { memset(oled_buffer, 0, sizeof(oled_buffer)); oled_cursor = &oled_buffer[0]; - oled_dirty = -1; // -1 will be max value as long as display_dirty is unsigned type + oled_dirty = OLED_ALL_BLOCKS_MASK; } static void calc_bounds(uint8_t update_start, uint8_t *cmd_array) { @@ -262,13 +268,14 @@ static void rotate_90(const uint8_t *src, uint8_t *dest) { void oled_render(void) { // Do we have work to do? + oled_dirty &= OLED_ALL_BLOCKS_MASK; if (!oled_dirty || oled_scrolling) { return; } // Find first dirty block uint8_t update_start = 0; - while (!(oled_dirty & (1 << update_start))) { + while (!(oled_dirty & ((OLED_BLOCK_TYPE)1 << update_start))) { ++update_start; } @@ -314,7 +321,7 @@ void oled_render(void) { oled_on(); // Clear dirty flag - oled_dirty &= ~(1 << update_start); + oled_dirty &= ~((OLED_BLOCK_TYPE)1 << update_start); } void oled_set_cursor(uint8_t col, uint8_t line) { @@ -404,9 +411,9 @@ void oled_write_char(const char data, bool invert) { // Dirty check if (memcmp(&oled_temp_buffer, oled_cursor, OLED_FONT_WIDTH)) { uint16_t index = oled_cursor - &oled_buffer[0]; - oled_dirty |= (1 << (index / OLED_BLOCK_SIZE)); + oled_dirty |= ((OLED_BLOCK_TYPE)1 << (index / OLED_BLOCK_SIZE)); // Edgecase check if the written data spans the 2 chunks - oled_dirty |= (1 << ((index + OLED_FONT_WIDTH) / OLED_BLOCK_SIZE)); + oled_dirty |= ((OLED_BLOCK_TYPE)1 << ((index + OLED_FONT_WIDTH - 1) / OLED_BLOCK_SIZE)); } // Finally move to the next char @@ -441,7 +448,7 @@ void oled_pan(bool left) { } } } - oled_dirty = ~((OLED_BLOCK_TYPE)0); + oled_dirty = OLED_ALL_BLOCKS_MASK; } oled_buffer_reader_t oled_read_raw(uint16_t start_index) { @@ -456,7 +463,7 @@ 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)); + oled_dirty |= ((OLED_BLOCK_TYPE)1 << (index / OLED_BLOCK_SIZE)); } void oled_write_raw(const char *data, uint16_t size) { @@ -464,21 +471,28 @@ void oled_write_raw(const char *data, uint16_t size) { for (uint16_t i = 0; i < size; i++) { if (oled_buffer[i] == data[i]) continue; oled_buffer[i] = data[i]; - oled_dirty |= (1 << (i / OLED_BLOCK_SIZE)); + oled_dirty |= ((OLED_BLOCK_TYPE)1 << (i / OLED_BLOCK_SIZE)); } } void oled_write_pixel(uint8_t x, uint8_t y, bool on) { - if (x >= OLED_DISPLAY_WIDTH || y >= OLED_DISPLAY_HEIGHT) { + if (x >= oled_rotation_width) { return; } - uint16_t index = x + (y / 8) * OLED_DISPLAY_WIDTH; + uint16_t index = x + (y / 8) * oled_rotation_width; + if (index >= OLED_MATRIX_SIZE) { + return; + } + uint8_t data = oled_buffer[index]; if (on) { - oled_buffer[index] |= (1 << (y % 8)); + data |= (1 << (y % 8)); } else { - oled_buffer[index] &= ~(1 << (y % 8)); + data &= ~(1 << (y % 8)); + } + if (oled_buffer[index] != data) { + oled_buffer[index] = data; + oled_dirty |= ((OLED_BLOCK_TYPE)1 << (index / OLED_BLOCK_SIZE)); } - oled_dirty |= (1 << (index / OLED_BLOCK_SIZE)); } #if defined(__AVR__) @@ -501,7 +515,7 @@ void oled_write_raw_P(const char *data, uint16_t size) { uint8_t c = pgm_read_byte(data++); if (oled_buffer[i] == c) continue; oled_buffer[i] = c; - oled_dirty |= (1 << (i / OLED_BLOCK_SIZE)); + oled_dirty |= ((OLED_BLOCK_TYPE)1 << (i / OLED_BLOCK_SIZE)); } } #endif // defined(__AVR__) @@ -597,7 +611,7 @@ bool oled_scroll_off(void) { return oled_scrolling; } oled_scrolling = false; - oled_dirty = -1; + oled_dirty = OLED_ALL_BLOCKS_MASK; } return !oled_scrolling; } |