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Fix oled_render to render all dirty blocks. (#18887)

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Richard Nash 2022-11-13 10:49:59 -05:00 • committed by GitHub
commit 4c1d8a0eb3
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1 changed files with 49 additions and 51 deletions
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100
drivers/oled/ssd1306_sh1106.c
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@ -291,65 +291,63 @@ static void rotate_90(const uint8_t *src, uint8_t *dest) {
}
void oled_render(void) {
if (!oled_initialized) {
return;
}
// Do we have work to do?
oled_dirty &= OLED_ALL_BLOCKS_MASK;
if (!oled_dirty || oled_scrolling) {
if (!oled_dirty || !oled_initialized || oled_scrolling) {
return;
}
// Find first dirty block
uint8_t update_start = 0;
while (!(oled_dirty & ((OLED_BLOCK_TYPE)1 << update_start))) {
++update_start;
}
// Set column & page position
static uint8_t display_start[] = {I2C_CMD, COLUMN_ADDR, 0, OLED_DISPLAY_WIDTH - 1, PAGE_ADDR, 0, OLED_DISPLAY_HEIGHT / 8 - 1};
if (!HAS_FLAGS(oled_rotation, OLED_ROTATION_90)) {
calc_bounds(update_start, &display_start[1]); // Offset from I2C_CMD byte at the start
} else {
calc_bounds_90(update_start, &display_start[1]); // Offset from I2C_CMD byte at the start
}
// Send column & page position
if (I2C_TRANSMIT(display_start) != I2C_STATUS_SUCCESS) {
print("oled_render offset command failed\n");
return;
}
if (!HAS_FLAGS(oled_rotation, OLED_ROTATION_90)) {
// Send render data chunk as is
if (I2C_WRITE_REG(I2C_DATA, &oled_buffer[OLED_BLOCK_SIZE * update_start], OLED_BLOCK_SIZE) != I2C_STATUS_SUCCESS) {
print("oled_render data failed\n");
return;
}
} else {
// Rotate the render chunks
const static uint8_t source_map[] = OLED_SOURCE_MAP;
const static uint8_t target_map[] = OLED_TARGET_MAP;
static uint8_t temp_buffer[OLED_BLOCK_SIZE];
memset(temp_buffer, 0, sizeof(temp_buffer));
for (uint8_t i = 0; i < sizeof(source_map); ++i) {
rotate_90(&oled_buffer[OLED_BLOCK_SIZE * update_start + source_map[i]], &temp_buffer[target_map[i]]);
}
// Send render data chunk after rotating
if (I2C_WRITE_REG(I2C_DATA, &temp_buffer[0], OLED_BLOCK_SIZE) != I2C_STATUS_SUCCESS) {
print("oled_render90 data failed\n");
return;
}
}
// Turn on display if it is off
oled_on();
// Clear dirty flag
oled_dirty &= ~((OLED_BLOCK_TYPE)1 << update_start);
uint8_t update_start = 0;
while (oled_dirty) { // render all dirty blocks
// Find next dirty block
while (!(oled_dirty & ((OLED_BLOCK_TYPE)1 << update_start))) {
++update_start;
}
// Set column & page position
static uint8_t display_start[] = {I2C_CMD, COLUMN_ADDR, 0, OLED_DISPLAY_WIDTH - 1, PAGE_ADDR, 0, OLED_DISPLAY_HEIGHT / 8 - 1};
if (!HAS_FLAGS(oled_rotation, OLED_ROTATION_90)) {
calc_bounds(update_start, &display_start[1]); // Offset from I2C_CMD byte at the start
} else {
calc_bounds_90(update_start, &display_start[1]); // Offset from I2C_CMD byte at the start
}
// Send column & page position
if (I2C_TRANSMIT(display_start) != I2C_STATUS_SUCCESS) {
print("oled_render offset command failed\n");
return;
}
if (!HAS_FLAGS(oled_rotation, OLED_ROTATION_90)) {
// Send render data chunk as is
if (I2C_WRITE_REG(I2C_DATA, &oled_buffer[OLED_BLOCK_SIZE * update_start], OLED_BLOCK_SIZE) != I2C_STATUS_SUCCESS) {
print("oled_render data failed\n");
return;
}
} else {
// Rotate the render chunks
const static uint8_t source_map[] = OLED_SOURCE_MAP;
const static uint8_t target_map[] = OLED_TARGET_MAP;
static uint8_t temp_buffer[OLED_BLOCK_SIZE];
memset(temp_buffer, 0, sizeof(temp_buffer));
for (uint8_t i = 0; i < sizeof(source_map); ++i) {
rotate_90(&oled_buffer[OLED_BLOCK_SIZE * update_start + source_map[i]], &temp_buffer[target_map[i]]);
}
// Send render data chunk after rotating
if (I2C_WRITE_REG(I2C_DATA, &temp_buffer[0], OLED_BLOCK_SIZE) != I2C_STATUS_SUCCESS) {
print("oled_render90 data failed\n");
return;
}
}
// Clear dirty flag of just rendered block
oled_dirty &= ~((OLED_BLOCK_TYPE)1 << update_start);
}
}
void oled_set_cursor(uint8_t col, uint8_t line) {