mirror of
https://github.com/JADE-Jerry/jcalendar.git
synced 2026-03-15 13:33:16 +08:00
480 lines
18 KiB
C
480 lines
18 KiB
C
uint8_t color7(uint16_t red, uint16_t green, uint16_t blue)
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{
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uint8_t cv7 = 0x00;
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if ((red < 0x80) && (green < 0x80) && (blue < 0x80)) cv7 = 0x00; // black
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else if ((red >= 0x80) && (green >= 0x80) && (blue >= 0x80)) cv7 = 0x01; // white
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else if ((red >= 0x80) && (blue >= 0x80)) cv7 = red > blue ? 0x04 : 0x03; // red, blue
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else if ((green >= 0x80) && (blue >= 0x80)) cv7 = green > blue ? 0x02 : 0x03; // green, blue
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else if ((red >= 0x80) && (green >= 0xC0)) cv7 = 0x05; // yellow
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else if ((red >= 0x80) && (green >= 0x40)) cv7 = 0x06; // orange
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else if (red >= 0x80) cv7 = 0x04; // red
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else if (green >= 0x80) cv7 = 0x02; // green
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else cv7 = 0x03; // blue
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return cv7;
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}
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void whiteLine()
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{
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for (size_t i = 0; i < sizeof(output_row_native4c_buffer); i++) output_row_native4c_buffer[i] = 0x11;
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}
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void showNative7cFrom_HTTP(const char* host, const char* path, const char* filename, int16_t x, int16_t y)
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{
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WiFiClient client;
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bool connection_ok = false;
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bool valid = false; // valid format to be handled
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bool flip = true; // bitmap is stored bottom-to-top
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uint32_t startTime = millis();
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if ((x >= display.epd2.WIDTH) || (y >= display.epd2.HEIGHT)) return;
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Serial.println(); Serial.print("downloading file \""); Serial.print(filename); Serial.println("\"");
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Serial.print("connecting to "); Serial.println(host);
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if (!client.connect(host, httpPort))
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{
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Serial.println("connection failed");
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return;
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}
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Serial.print("requesting URL: ");
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Serial.println(String("http://") + host + path + filename);
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client.print(String("GET ") + path + filename + " HTTP/1.1\r\n" +
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"Host: " + host + "\r\n" +
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"User-Agent: GxEPD2_WiFi_Example\r\n" +
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"Connection: close\r\n\r\n");
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Serial.println("request sent");
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while (client.connected())
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{
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String line = client.readStringUntil('\n');
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if (!connection_ok)
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{
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connection_ok = line.startsWith("HTTP/1.1 200 OK");
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if (connection_ok) Serial.println(line);
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}
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if (!connection_ok) Serial.println(line);
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if (line == "\r")
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{
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Serial.println("headers received");
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break;
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}
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}
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if (!connection_ok) return;
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// Parse BMP header
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if (read16(client) == 0x4D42) // BMP signature
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{
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uint32_t fileSize = read32(client);
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uint32_t creatorBytes = read32(client); (void)creatorBytes; //unused
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uint32_t imageOffset = read32(client); // Start of image data
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uint32_t headerSize = read32(client);
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uint32_t width = read32(client);
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int32_t height = (int32_t) read32(client);
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uint16_t planes = read16(client);
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uint16_t depth = read16(client); // bits per pixel
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uint32_t format = read32(client);
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uint32_t bytes_read = 7 * 4 + 3 * 2; // read so far
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if ((planes == 1) && ((format == 0) || (format == 3))) // uncompressed is handled, 565 also
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{
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Serial.print("File size: "); Serial.println(fileSize);
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Serial.print("Image Offset: "); Serial.println(imageOffset);
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Serial.print("Header size: "); Serial.println(headerSize);
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Serial.print("Bit Depth: "); Serial.println(depth);
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Serial.print("Image size: ");
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Serial.print(width);
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Serial.print('x');
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Serial.println(abs(height));
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// BMP rows are padded (if needed) to 4-byte boundary
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uint32_t rowSize = (width * depth / 8 + 3) & ~3;
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if (depth < 8) rowSize = ((width * depth + 8 - depth) / 8 + 3) & ~3;
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if (height < 0)
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{
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height = -height;
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flip = false;
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}
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uint16_t w = width;
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uint16_t h = height;
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if ((x + w - 1) >= display.epd2.WIDTH) w = display.epd2.WIDTH - x;
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if ((y + h - 1) >= display.epd2.HEIGHT) h = display.epd2.HEIGHT - y;
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if (w <= max_row_width) // handle with direct drawing
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{
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valid = true;
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uint8_t bitmask = 0xFF;
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uint8_t bitshift = 8 - depth;
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uint16_t red, green, blue;
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uint8_t cv7 = 0x00;
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if (depth <= 8)
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{
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if (depth < 8) bitmask >>= depth;
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bytes_read += skip(client, imageOffset - (4 << depth) - bytes_read); // 54 for regular, diff for colorsimportant
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for (uint16_t pn = 0; pn < (1 << depth); pn++)
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{
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blue = client.read();
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green = client.read();
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red = client.read();
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client.read();
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bytes_read += 4;
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rgb_palette_buffer[pn] = color7(red, green, blue);
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}
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}
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display.epd2.setPaged();
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whiteLine();
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for (uint16_t l = 0; l < y; l++)
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{
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display.writeNative(output_row_native4c_buffer, 0, 0, l, display.epd2.WIDTH, 1, false, false, false);
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}
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uint32_t rowPosition = imageOffset;
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bytes_read += skip(client, rowPosition - bytes_read);
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for (uint16_t row = 0; row < h; row++, rowPosition += rowSize) // for each line
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{
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if (!connection_ok || !(client.connected() || client.available())) break;
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delay(1); // yield() to avoid WDT
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uint32_t in_remain = rowSize;
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uint32_t in_idx = 0;
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uint32_t in_bytes = 0;
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uint8_t in_byte = 0; // for depth <= 8
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uint8_t in_bits = 0; // for depth <= 8
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uint8_t out_cv7_byte = 0x00;
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uint32_t out_idx = 0;
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for (uint16_t col = 0; col < w; col++) // for each pixel
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{
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yield();
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if (!connection_ok || !(client.connected() || client.available())) break;
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// Time to read more pixel data?
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if (in_idx >= in_bytes) // ok, exact match for 24bit also (size IS multiple of 3)
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{
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uint32_t get = in_remain > sizeof(input_buffer) ? sizeof(input_buffer) : in_remain;
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uint32_t got = read8n(client, input_buffer, get);
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while ((got < get) && connection_ok)
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{
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//Serial.print("got "); Serial.print(got); Serial.print(" < "); Serial.print(get); Serial.print(" @ "); Serial.println(bytes_read);
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uint32_t gotmore = read8n(client, input_buffer + got, get - got);
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got += gotmore;
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connection_ok = gotmore > 0;
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}
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in_bytes = got;
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in_remain -= got;
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bytes_read += got;
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in_idx = 0;
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}
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if (!connection_ok)
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{
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Serial.print("Error: got no more after "); Serial.print(bytes_read); Serial.println(" bytes read!");
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break;
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}
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switch (depth)
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{
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case 32:
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blue = input_buffer[in_idx++];
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green = input_buffer[in_idx++];
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red = input_buffer[in_idx++];
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in_idx++; // skip alpha
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cv7 = color7(red, green, blue);
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break;
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case 24:
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blue = input_buffer[in_idx++];
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green = input_buffer[in_idx++];
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red = input_buffer[in_idx++];
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cv7 = color7(red, green, blue);
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break;
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case 16:
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{
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uint8_t lsb = input_buffer[in_idx++];
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uint8_t msb = input_buffer[in_idx++];
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if (format == 0) // 555
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{
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blue = (lsb & 0x1F) << 3;
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green = ((msb & 0x03) << 6) | ((lsb & 0xE0) >> 2);
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red = (msb & 0x7C) << 1;
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}
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else // 565
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{
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blue = (lsb & 0x1F) << 3;
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green = ((msb & 0x07) << 5) | ((lsb & 0xE0) >> 3);
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red = (msb & 0xF8);
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}
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}
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cv7 = color7(red, green, blue);
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break;
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case 1:
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case 2:
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case 4:
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case 8:
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{
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if (0 == in_bits)
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{
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in_byte = input_buffer[in_idx++];
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in_bits = 8;
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}
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uint16_t pn = (in_byte >> bitshift) & bitmask;
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cv7 = rgb_palette_buffer[pn];
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in_byte <<= depth;
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in_bits -= depth;
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}
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break;
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}
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out_cv7_byte |= cv7 << (4 * (1 - col % 2));
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if ((1 == col % 2) || (col == w - 1)) // write that last byte! (for w%2!=0 border)
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{
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uint32_t bx = flip ? (display.epd2.WIDTH - x) / 2 - out_idx++ : x / 2 + out_idx++;
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output_row_native4c_buffer[bx] = out_cv7_byte;
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out_cv7_byte = 0x00;
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}
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} // end pixel
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display.writeNative(output_row_native4c_buffer, 0, 0, y + row, display.epd2.WIDTH, 1, false, false, false);
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} // end line
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Serial.print("downloaded in ");
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Serial.print(millis() - startTime);
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Serial.println(" ms");
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whiteLine();
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for (uint16_t l = y + h; l < display.epd2.HEIGHT; l++)
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{
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display.writeNative(output_row_native4c_buffer, 0, 0, l, display.epd2.WIDTH, 1, false, false, false);
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}
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display.refresh();
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}
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Serial.print("bytes read "); Serial.println(bytes_read);
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}
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}
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client.stop();
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if (!valid)
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{
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Serial.println("bitmap format not handled.");
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}
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}
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void showNative7cFrom_HTTPS(const char* host, const char* path, const char* filename, const char* fingerprint, int16_t x, int16_t y, bool with_color, const char* certificate)
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{
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// Use WiFiClientSecure class to create TLS connection
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#if defined (ESP8266) || defined(ARDUINO_RASPBERRY_PI_PICO_W)
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BearSSL::WiFiClientSecure client;
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BearSSL::X509List cert(certificate ? certificate : certificate_rawcontent);
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#else
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WiFiClientSecure client;
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#endif
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bool connection_ok = false;
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bool valid = false; // valid format to be handled
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bool flip = true; // bitmap is stored bottom-to-top
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uint32_t startTime = millis();
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if ((x >= display.epd2.WIDTH) || (y >= display.epd2.HEIGHT)) return;
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Serial.println(); Serial.print("downloading file \""); Serial.print(filename); Serial.println("\"");
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Serial.print("connecting to "); Serial.println(host);
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#if defined (ESP8266) || defined(ARDUINO_RASPBERRY_PI_PICO_W)
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if (certificate) client.setTrustAnchors(&cert);
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else if (fingerprint) client.setFingerprint(fingerprint);
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else client.setInsecure();
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#elif defined (ESP32)
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if (certificate) client.setCACert(certificate);
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#endif
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if (!client.connect(host, httpsPort))
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{
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Serial.println("connection failed");
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return;
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}
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Serial.print("requesting URL: ");
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Serial.println(String("https://") + host + path + filename);
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client.print(String("GET ") + path + filename + " HTTP/1.1\r\n" +
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"Host: " + host + "\r\n" +
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"User-Agent: GxEPD2_WiFi_Example\r\n" +
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"Connection: close\r\n\r\n");
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Serial.println("request sent");
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while (client.connected())
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{
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String line = client.readStringUntil('\n');
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if (!connection_ok)
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{
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connection_ok = line.startsWith("HTTP/1.1 200 OK");
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if (connection_ok) Serial.println(line);
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}
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if (!connection_ok) Serial.println(line);
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if (line == "\r")
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{
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Serial.println("headers received");
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break;
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}
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}
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if (!connection_ok) return;
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// Parse BMP header
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uint16_t signature = 0;
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for (int16_t i = 0; i < 50; i++)
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{
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if (!client.available()) delay(100);
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else signature = read16(client);
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if (signature == 0x4D42) break;
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}
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if (signature == 0x4D42) // BMP signature
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{
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uint32_t fileSize = read32(client);
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uint32_t creatorBytes = read32(client); (void)creatorBytes; //unused
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uint32_t imageOffset = read32(client); // Start of image data
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uint32_t headerSize = read32(client);
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uint32_t width = read32(client);
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int32_t height = (int32_t) read32(client);
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uint16_t planes = read16(client);
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uint16_t depth = read16(client); // bits per pixel
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uint32_t format = read32(client);
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uint32_t bytes_read = 7 * 4 + 3 * 2; // read so far
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if ((planes == 1) && ((format == 0) || (format == 3))) // uncompressed is handled, 565 also
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{
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Serial.print("File size: "); Serial.println(fileSize);
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Serial.print("Image Offset: "); Serial.println(imageOffset);
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Serial.print("Header size: "); Serial.println(headerSize);
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Serial.print("Bit Depth: "); Serial.println(depth);
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Serial.print("Image size: ");
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Serial.print(width);
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Serial.print('x');
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Serial.println(abs(height));
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// BMP rows are padded (if needed) to 4-byte boundary
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uint32_t rowSize = (width * depth / 8 + 3) & ~3;
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if (depth < 8) rowSize = ((width * depth + 8 - depth) / 8 + 3) & ~3;
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if (height < 0)
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{
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height = -height;
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flip = false;
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}
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uint16_t w = width;
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uint16_t h = height;
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if ((x + w - 1) >= display.epd2.WIDTH) w = display.epd2.WIDTH - x;
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if ((y + h - 1) >= display.epd2.HEIGHT) h = display.epd2.HEIGHT - y;
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if (w <= max_row_width) // handle with direct drawing
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{
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valid = true;
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uint8_t bitmask = 0xFF;
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uint8_t bitshift = 8 - depth;
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uint16_t red, green, blue;
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uint8_t cv7 = 0x00;
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if (depth <= 8)
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{
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if (depth < 8) bitmask >>= depth;
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bytes_read += skip(client, imageOffset - (4 << depth) - bytes_read); // 54 for regular, diff for colorsimportant
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for (uint16_t pn = 0; pn < (1 << depth); pn++)
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{
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blue = client.read();
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green = client.read();
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red = client.read();
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client.read();
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bytes_read += 4;
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rgb_palette_buffer[pn] = color7(red, green, blue);
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}
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}
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display.epd2.setPaged();
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whiteLine();
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for (uint16_t l = 0; l < y; l++)
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{
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display.writeNative(output_row_native4c_buffer, 0, 0, l, display.epd2.WIDTH, 1, false, false, false);
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}
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uint32_t rowPosition = imageOffset;
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bytes_read += skip(client, rowPosition - bytes_read);
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for (uint16_t row = 0; row < h; row++, rowPosition += rowSize) // for each line
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{
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if (!connection_ok || !(client.connected() || client.available())) break;
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delay(1); // yield() to avoid WDT
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uint32_t in_remain = rowSize;
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uint32_t in_idx = 0;
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uint32_t in_bytes = 0;
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uint8_t in_byte = 0; // for depth <= 8
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uint8_t in_bits = 0; // for depth <= 8
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uint8_t out_cv7_byte = 0x00;
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uint32_t out_idx = 0;
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for (uint16_t col = 0; col < w; col++) // for each pixel
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{
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yield();
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if (!connection_ok || !(client.connected() || client.available())) break;
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// Time to read more pixel data?
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if (in_idx >= in_bytes) // ok, exact match for 24bit also (size IS multiple of 3)
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{
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uint32_t get = in_remain > sizeof(input_buffer) ? sizeof(input_buffer) : in_remain;
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uint32_t got = read8n(client, input_buffer, get);
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while ((got < get) && connection_ok)
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{
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//Serial.print("got "); Serial.print(got); Serial.print(" < "); Serial.print(get); Serial.print(" @ "); Serial.println(bytes_read);
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uint32_t gotmore = read8n(client, input_buffer + got, get - got);
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got += gotmore;
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connection_ok = gotmore > 0;
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}
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in_bytes = got;
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in_remain -= got;
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bytes_read += got;
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in_idx = 0;
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}
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if (!connection_ok)
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{
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Serial.print("Error: got no more after "); Serial.print(bytes_read); Serial.println(" bytes read!");
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break;
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}
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switch (depth)
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{
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case 32:
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blue = input_buffer[in_idx++];
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green = input_buffer[in_idx++];
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red = input_buffer[in_idx++];
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in_idx++; // skip alpha
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cv7 = color7(red, green, blue);
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break;
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case 24:
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blue = input_buffer[in_idx++];
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green = input_buffer[in_idx++];
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red = input_buffer[in_idx++];
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cv7 = color7(red, green, blue);
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break;
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case 16:
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{
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uint8_t lsb = input_buffer[in_idx++];
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uint8_t msb = input_buffer[in_idx++];
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if (format == 0) // 555
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{
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blue = (lsb & 0x1F) << 3;
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green = ((msb & 0x03) << 6) | ((lsb & 0xE0) >> 2);
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red = (msb & 0x7C) << 1;
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}
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else // 565
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{
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blue = (lsb & 0x1F) << 3;
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green = ((msb & 0x07) << 5) | ((lsb & 0xE0) >> 3);
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red = (msb & 0xF8);
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}
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}
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cv7 = color7(red, green, blue);
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break;
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case 1:
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case 2:
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case 4:
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case 8:
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{
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if (0 == in_bits)
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{
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in_byte = input_buffer[in_idx++];
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in_bits = 8;
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}
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uint16_t pn = (in_byte >> bitshift) & bitmask;
|
|
cv7 = rgb_palette_buffer[pn];
|
|
in_byte <<= depth;
|
|
in_bits -= depth;
|
|
}
|
|
break;
|
|
}
|
|
out_cv7_byte |= cv7 << (4 * (1 - col % 2));
|
|
if ((1 == col % 2) || (col == w - 1)) // write that last byte! (for w%2!=0 border)
|
|
{
|
|
uint32_t bx = flip ? (display.epd2.WIDTH - x) / 2 - out_idx++ : x / 2 + out_idx++;
|
|
output_row_native4c_buffer[bx] = out_cv7_byte;
|
|
out_cv7_byte = 0x00;
|
|
}
|
|
} // end pixel
|
|
display.writeNative(output_row_native4c_buffer, 0, 0, y + row, display.epd2.WIDTH, 1, false, false, false);
|
|
} // end line
|
|
Serial.print("downloaded in ");
|
|
Serial.print(millis() - startTime);
|
|
Serial.println(" ms");
|
|
whiteLine();
|
|
for (uint16_t l = y + h; l < display.epd2.HEIGHT; l++)
|
|
{
|
|
display.writeNative(output_row_native4c_buffer, 0, 0, l, display.epd2.WIDTH, 1, false, false, false);
|
|
}
|
|
display.refresh();
|
|
}
|
|
Serial.print("bytes read "); Serial.println(bytes_read);
|
|
}
|
|
}
|
|
client.stop();
|
|
if (!valid)
|
|
{
|
|
Serial.println("bitmap format not handled.");
|
|
}
|
|
}
|