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Pixoo: implement sending bitmaps

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Not really used right not - mapped to "test new functionality"
This commit is contained in:
Andreas Shimokawa 2023-12-26 01:14:16 +01:00
parent 09fbc2665b
commit f4d7a6b490
1 changed files with 75 additions and 1 deletions
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76
app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/divoom/PixooProtocol.java
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@ -19,6 +19,10 @@ package nodomain.freeyourgadget.gadgetbridge.service.devices.divoom;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import androidx.localbroadcastmanager.content.LocalBroadcastManager;
@ -31,6 +35,7 @@ import java.nio.ByteOrder;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
@ -50,7 +55,9 @@ import nodomain.freeyourgadget.gadgetbridge.model.NotificationSpec;
import nodomain.freeyourgadget.gadgetbridge.model.WeatherSpec;
import nodomain.freeyourgadget.gadgetbridge.service.btle.BLETypeConversions;
import nodomain.freeyourgadget.gadgetbridge.service.serial.GBDeviceProtocol;
import nodomain.freeyourgadget.gadgetbridge.util.BitmapUtil;
import nodomain.freeyourgadget.gadgetbridge.util.GBPrefs;
import nodomain.freeyourgadget.gadgetbridge.util.NotificationUtils;
import nodomain.freeyourgadget.gadgetbridge.util.Prefs;
import nodomain.freeyourgadget.gadgetbridge.util.StringUtils;
@ -334,6 +341,71 @@ public class PixooProtocol extends GBDeviceProtocol {
});
}
private byte[] encodeDrawIcon(String packageName) {
Drawable icon = NotificationUtils.getAppIcon(GBApplication.getContext(), packageName);
if (icon == null) {
LOG.warn("could not get icon for package: " + packageName);
return null;
}
final Bitmap bmp = BitmapUtil.toBitmap(icon);
final Bitmap bmpResized = Bitmap.createBitmap(16, 16, Bitmap.Config.ARGB_8888);
final Canvas canvas = new Canvas(bmpResized);
final Rect rect = new Rect(0, 0, 16, 16);
canvas.drawBitmap(bmp, null, rect, null);
// construct palette with unique colors
HashSet<Integer> palette = new HashSet<>();
for (int y = 0; y < 16; y++) {
for (int x = 0; x < 16; x++) {
int pixel = bmpResized.getPixel(x, y);
palette.add(pixel);
}
}
// convert to lookup of index
HashMap<Integer, Integer> paletteLookup = new HashMap<>();
int index = 0;
for (int color : palette) {
paletteLookup.put(color, index++);
}
int paletteMaxIndex = palette.size() - 1;
int bpp = 1;
while ((paletteMaxIndex >>= 1) != 0) {
bpp++;
}
LOG.info("got palette of {} colors, will need {}bpp", palette.size(), bpp);
byte[] header = new byte[]{0x44, 0x00, 0x0a, 0x0a, 0x04, (byte) 0xaa, 0x53, 0x00, (byte) 0xf4, 0x01, 0x00, (byte) palette.size()};
int pixels_size = (bpp * 16 * 16) / 8;
byte[] pixels = new byte[pixels_size];
ByteBuffer buf = ByteBuffer.allocate(palette.size() * 3 + header.length + pixels_size);
buf.put(header);
for (int color : palette) {
buf.put((byte) ((color >> 16) & 0xff));
buf.put((byte) ((color >> 8) & 0xff));
buf.put((byte) (color & 0xff));
}
int bitposition = 0;
for (int y = 0; y < 16; y++) {
for (int x = 0; x < 16; x++) {
int pixel = bmpResized.getPixel(x, y);
index = paletteLookup.get(pixel);
int pos = bitposition / 8;
int shift = bitposition % 8;
pixels[pos] = (byte) (pixels[pos] | (byte) (index << shift));
if (shift + bpp > 8) {
shift = -shift + 8;
pos++;
pixels[pos] = (byte) (pixels[pos] | (byte) (index >> shift));
}
bitposition += bpp;
}
}
buf.put(pixels);
return encodeProtocol(buf.array());
}
private byte[] encodeClockModeCommand(int clockMode, boolean showTime, boolean showWeather, boolean showTemperature, boolean showDate,
int r, int g, int b) {
@ -379,7 +451,9 @@ public class PixooProtocol extends GBDeviceProtocol {
public byte[] encodeTestNewFunction() {
//return encodeAudioModeCommand(1); // works
//return encodeEffectModeCommand(5); // does nothing
return encodeClockModeCommand(0, true, true, false, true, 127, 127, 127); // works r,g,b up to 127
//return encodeClockModeCommand(0, true, true, false, true, 127, 127, 127); // works r,g,b up to 127
return encodeDrawIcon("nodomain.freeyourgadget.gadgetbridge");
//return encodeDrawIcon("com.benny.openlauncher");
}
byte[] encodeProtocol(byte[] payload) {