mirror of
https://github.com/JADE-Jerry/jcalendar.git
synced 2026-03-15 13:33:16 +08:00
516 lines
21 KiB
C
516 lines
21 KiB
C
void drawBitmapFrom_HTTP_ToBuffer(const char* host, const char* path, const char* filename, int16_t x, int16_t y, bool with_color)
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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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bool has_multicolors = (display.epd2.panel == GxEPD2::ACeP565) || (display.epd2.panel == GxEPD2::GDEY073D46)|| (display.epd2.panel == GxEPD2::GDEP073E01);
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uint32_t startTime = millis();
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if ((x >= display.width()) || (y >= display.height())) return;
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display.fillScreen(GxEPD_WHITE);
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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.width()) w = display.width() - x;
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if ((y + h - 1) >= display.height()) h = display.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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bool whitish = false;
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bool colored = false;
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if (depth == 1) with_color = false;
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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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whitish = with_color ? ((red > 0x80) && (green > 0x80) && (blue > 0x80)) : ((red + green + blue) > 3 * 0x80); // whitish
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colored = (red > 0xF0) || ((green > 0xF0) && (blue > 0xF0)); // reddish or yellowish?
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if (0 == pn % 8) mono_palette_buffer[pn / 8] = 0;
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mono_palette_buffer[pn / 8] |= whitish << pn % 8;
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if (0 == pn % 8) color_palette_buffer[pn / 8] = 0;
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color_palette_buffer[pn / 8] |= colored << pn % 8;
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//Serial.print("0x00"); Serial.print(red, HEX); Serial.print(green, HEX); Serial.print(blue, HEX);
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//Serial.print(" : "); Serial.print(whitish); Serial.print(", "); Serial.println(colored);
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rgb_palette_buffer[pn] = ((red & 0xF8) << 8) | ((green & 0xFC) << 3) | ((blue & 0xF8) >> 3);
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}
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}
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uint32_t rowPosition = flip ? imageOffset + (height - h) * rowSize : 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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uint16_t color = GxEPD_WHITE;
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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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whitish = with_color ? ((red > 0x80) && (green > 0x80) && (blue > 0x80)) : ((red + green + blue) > 3 * 0x80); // whitish
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colored = (red > 0xF0) || ((green > 0xF0) && (blue > 0xF0)); // reddish or yellowish?
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color = ((red & 0xF8) << 8) | ((green & 0xFC) << 3) | ((blue & 0xF8) >> 3);
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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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whitish = with_color ? ((red > 0x80) && (green > 0x80) && (blue > 0x80)) : ((red + green + blue) > 3 * 0x80); // whitish
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colored = (red > 0xF0) || ((green > 0xF0) && (blue > 0xF0)); // reddish or yellowish?
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color = ((red & 0xF8) << 8) | ((green & 0xFC) << 3) | ((blue & 0xF8) >> 3);
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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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color = ((red & 0xF8) << 8) | ((green & 0xFC) << 3) | ((blue & 0xF8) >> 3);
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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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color = (msb << 8) | lsb;
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}
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whitish = with_color ? ((red > 0x80) && (green > 0x80) && (blue > 0x80)) : ((red + green + blue) > 3 * 0x80); // whitish
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colored = (red > 0xF0) || ((green > 0xF0) && (blue > 0xF0)); // reddish or yellowish?
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}
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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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whitish = mono_palette_buffer[pn / 8] & (0x1 << pn % 8);
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colored = color_palette_buffer[pn / 8] & (0x1 << pn % 8);
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in_byte <<= depth;
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in_bits -= depth;
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color = rgb_palette_buffer[pn];
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}
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break;
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}
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if (with_color && has_multicolors)
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{
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// keep color
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}
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else if (whitish)
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{
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color = GxEPD_WHITE;
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}
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else if (colored && with_color)
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{
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color = GxEPD_COLORED;
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}
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else
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{
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color = GxEPD_BLACK;
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}
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uint16_t yrow = y + (flip ? h - row - 1 : row);
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display.drawPixel(x + col, yrow, color);
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} // end pixel
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} // end line
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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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Serial.print("loaded in "); Serial.print(millis() - startTime); Serial.println(" ms");
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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 showBitmapFrom_HTTP_Buffered(const char* host, const char* path, const char* filename, int16_t x, int16_t y, bool with_color)
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{
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Serial.println(); Serial.print("downloading file \""); Serial.print(filename); Serial.println("\"");
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display.setFullWindow();
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display.firstPage();
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do
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{
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drawBitmapFrom_HTTP_ToBuffer(host, path, filename, x, y, with_color);
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}
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while (display.nextPage());
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}
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void drawBitmapFrom_HTTPS_ToBuffer(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)
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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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bool has_multicolors = (display.epd2.panel == GxEPD2::ACeP565) || (display.epd2.panel == GxEPD2::GDEY073D46)|| (display.epd2.panel == GxEPD2::GDEP073E01);
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uint32_t startTime = millis();
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if ((x >= display.width()) || (y >= display.height())) return;
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display.fillScreen(GxEPD_WHITE);
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Serial.print("connecting to "); Serial.println(host);
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#if defined (ESP8266)
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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.width()) w = display.width() - x;
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if ((y + h - 1) >= display.height()) h = display.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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bool whitish = false;
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bool colored = false;
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if (depth == 1) with_color = false;
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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, 54 - bytes_read); //palette is always @ 54
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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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whitish = with_color ? ((red > 0x80) && (green > 0x80) && (blue > 0x80)) : ((red + green + blue) > 3 * 0x80); // whitish
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colored = (red > 0xF0) || ((green > 0xF0) && (blue > 0xF0)); // reddish or yellowish?
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if (0 == pn % 8) mono_palette_buffer[pn / 8] = 0;
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mono_palette_buffer[pn / 8] |= whitish << pn % 8;
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if (0 == pn % 8) color_palette_buffer[pn / 8] = 0;
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color_palette_buffer[pn / 8] |= colored << pn % 8;
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//Serial.print("0x00"); Serial.print(red, HEX); Serial.print(green, HEX); Serial.print(blue, HEX);
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//Serial.print(" : "); Serial.print(whitish); Serial.print(", "); Serial.println(colored);
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rgb_palette_buffer[pn] = ((red & 0xF8) << 8) | ((green & 0xFC) << 3) | ((blue & 0xF8) >> 3);
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}
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}
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uint32_t rowPosition = flip ? imageOffset + (height - h) * rowSize : imageOffset;
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//Serial.print("skip "); Serial.println(rowPosition - bytes_read);
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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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uint16_t color = GxEPD_WHITE;
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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
|
|
whitish = with_color ? ((red > 0x80) && (green > 0x80) && (blue > 0x80)) : ((red + green + blue) > 3 * 0x80); // whitish
|
|
colored = (red > 0xF0) || ((green > 0xF0) && (blue > 0xF0)); // reddish or yellowish?
|
|
color = ((red & 0xF8) << 8) | ((green & 0xFC) << 3) | ((blue & 0xF8) >> 3);
|
|
break;
|
|
case 24:
|
|
blue = input_buffer[in_idx++];
|
|
green = input_buffer[in_idx++];
|
|
red = input_buffer[in_idx++];
|
|
whitish = with_color ? ((red > 0x80) && (green > 0x80) && (blue > 0x80)) : ((red + green + blue) > 3 * 0x80); // whitish
|
|
colored = (red > 0xF0) || ((green > 0xF0) && (blue > 0xF0)); // reddish or yellowish?
|
|
color = ((red & 0xF8) << 8) | ((green & 0xFC) << 3) | ((blue & 0xF8) >> 3);
|
|
break;
|
|
case 16:
|
|
{
|
|
uint8_t lsb = input_buffer[in_idx++];
|
|
uint8_t msb = input_buffer[in_idx++];
|
|
if (format == 0) // 555
|
|
{
|
|
blue = (lsb & 0x1F) << 3;
|
|
green = ((msb & 0x03) << 6) | ((lsb & 0xE0) >> 2);
|
|
red = (msb & 0x7C) << 1;
|
|
color = ((red & 0xF8) << 8) | ((green & 0xFC) << 3) | ((blue & 0xF8) >> 3);
|
|
}
|
|
else // 565
|
|
{
|
|
blue = (lsb & 0x1F) << 3;
|
|
green = ((msb & 0x07) << 5) | ((lsb & 0xE0) >> 3);
|
|
red = (msb & 0xF8);
|
|
color = (msb << 8) | lsb;
|
|
}
|
|
whitish = with_color ? ((red > 0x80) && (green > 0x80) && (blue > 0x80)) : ((red + green + blue) > 3 * 0x80); // whitish
|
|
colored = (red > 0xF0) || ((green > 0xF0) && (blue > 0xF0)); // reddish or yellowish?
|
|
}
|
|
break;
|
|
case 1:
|
|
case 2:
|
|
case 4:
|
|
case 8:
|
|
{
|
|
if (0 == in_bits)
|
|
{
|
|
in_byte = input_buffer[in_idx++];
|
|
in_bits = 8;
|
|
}
|
|
uint16_t pn = (in_byte >> bitshift) & bitmask;
|
|
whitish = mono_palette_buffer[pn / 8] & (0x1 << pn % 8);
|
|
colored = color_palette_buffer[pn / 8] & (0x1 << pn % 8);
|
|
in_byte <<= depth;
|
|
in_bits -= depth;
|
|
color = rgb_palette_buffer[pn];
|
|
}
|
|
break;
|
|
}
|
|
if (with_color && has_multicolors)
|
|
{
|
|
// keep color
|
|
}
|
|
else if (whitish)
|
|
{
|
|
color = GxEPD_WHITE;
|
|
}
|
|
else if (colored && with_color)
|
|
{
|
|
color = GxEPD_COLORED;
|
|
}
|
|
else
|
|
{
|
|
color = GxEPD_BLACK;
|
|
}
|
|
uint16_t yrow = y + (flip ? h - row - 1 : row);
|
|
display.drawPixel(x + col, yrow, color);
|
|
} // end pixel
|
|
} // end line
|
|
}
|
|
Serial.print("bytes read "); Serial.println(bytes_read);
|
|
}
|
|
}
|
|
Serial.print("loaded in "); Serial.print(millis() - startTime); Serial.println(" ms");
|
|
client.stop();
|
|
if (!valid)
|
|
{
|
|
Serial.println("bitmap format not handled.");
|
|
}
|
|
}
|
|
|
|
void showBitmapFrom_HTTPS_Buffered(const char* host, const char* path, const char* filename, const char* fingerprint, int16_t x, int16_t y, bool with_color, const char* certificate)
|
|
{
|
|
Serial.println(); Serial.print("downloading file \""); Serial.print(filename); Serial.println("\"");
|
|
display.setFullWindow();
|
|
display.firstPage();
|
|
do
|
|
{
|
|
drawBitmapFrom_HTTPS_ToBuffer(host, path, filename, fingerprint, x, y, with_color, certificate);
|
|
}
|
|
while (display.nextPage());
|
|
}
|