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Neil 2024-03-16 16:39:26 +01:00 committed by NeilSCGH
parent a4e9dfd4bf
commit 58b0d28904
1 changed files with 6 additions and 8 deletions
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14
esphome/components/waveshare_epaper/waveshare_epaper.cpp
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@ -187,7 +187,7 @@ void WaveshareEPaper7C::init_internal_(uint32_t buffer_length) {
this->buffers_[i] = allocator.allocate(small_buffer_length);
if (this->buffers_[i] == nullptr) {
ESP_LOGE(TAG, "Could not allocate buffer %d for display!", i);
for (auto & buffer : this->buffers_) {
for (auto &buffer : this->buffers_) {
allocator.deallocate(buffer, small_buffer_length);
buffer = nullptr;
}
@ -229,14 +229,13 @@ void WaveshareEPaper7C::fill(Color color) {
ESP_LOGE(TAG, "Buffer unavailable!");
} else {
uint32_t small_buffer_length = this->get_buffer_length_() / NUM_BUFFERS;
for (auto & buffer : this->buffers_) {
for (auto &buffer : this->buffers_) {
for (uint32_t buffer_pos = 0; buffer_pos < small_buffer_length; buffer_pos += 3) {
// We store 8 bitset<3> in 3 bytes
// | byte 1 | byte 2 | byte 3 |
// |aaabbbaa|abbbaaab|bbaaabbb|
buffer[buffer_pos + 0] = pixel_color << 5 | pixel_color << 2 | pixel_color >> 1;
buffer[buffer_pos + 1] =
pixel_color << 7 | pixel_color << 4 | pixel_color << 1 | pixel_color >> 2;
buffer[buffer_pos + 1] = pixel_color << 7 | pixel_color << 4 | pixel_color << 1 | pixel_color >> 2;
buffer[buffer_pos + 2] = pixel_color << 6 | pixel_color << 3 | pixel_color << 0;
}
App.feed_wdt();
@ -2615,11 +2614,10 @@ void HOT WaveshareEPaper7P3InF::display() {
this->command(0x10);
uint32_t small_buffer_length = this->get_buffer_length_() / NUM_BUFFERS;
uint8_t byte_to_send;
for (auto & buffer : this->buffers_) {
for (auto &buffer : this->buffers_) {
for (uint32_t buffer_pos = 0; buffer_pos < small_buffer_length; buffer_pos += 3) {
std::bitset<24> triplet = buffer[buffer_pos + 0] << 16 |
buffer[buffer_pos + 1] << 8 |
buffer[buffer_pos + 2] << 0;
std::bitset<24> triplet =
buffer[buffer_pos + 0] << 16 | buffer[buffer_pos + 1] << 8 | buffer[buffer_pos + 2] << 0;
// 8 bitset<3> are stored in 3 bytes
// |aaabbbaa|abbbaaab|bbaaabbb|
// | byte 1 | byte 2 | byte 3 |