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BangleApps
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automatic thumbnailing

master
Gordon Williams 2021-10-26 12:40:08 +01:00
parent cc821be6ef
commit 8b9d43dece
1 changed files with 99 additions and 42 deletions
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141
bin/thumbnailer.js
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@ -2,15 +2,18 @@
var EMULATOR = "banglejs1"; var EMULATOR = "banglejs1";
var appId; var singleAppId;
if (process.argv.length!=3) { if (process.argv.length!=3 && process.argv.length!=2) {
console.log("USAGE:"); console.log("USAGE:");
console.log(" bin/thumbnailer.jd APP_ID"); console.log(" bin/thumbnailer.js");
console.log(" - all thumbnails");
console.log(" bin/thumbnailer.js APP_ID");
console.log(" - just one app");
process.exit(1); process.exit(1);
} }
appId = process.argv[2]; if (process.argv.length==3)
imageFn = "out.png"; singleAppId = process.argv[2];
if (!require("fs").existsSync(__dirname + "/../../EspruinoWebIDE")) { if (!require("fs").existsSync(__dirname + "/../../EspruinoWebIDE")) {
console.log("You need to:"); console.log("You need to:");
@ -33,52 +36,106 @@ eval(require("fs").readFileSync(__dirname + "/../core/lib/espruinotools.js").toS
eval(require("fs").readFileSync(__dirname + "/../core/js/utils.js").toString()); eval(require("fs").readFileSync(__dirname + "/../core/js/utils.js").toString());
eval(require("fs").readFileSync(__dirname + "/../core/js/appinfo.js").toString()); eval(require("fs").readFileSync(__dirname + "/../core/js/appinfo.js").toString());
var apps = JSON.parse(require("fs").readFileSync(__dirname+"/../apps.json")); var apps = JSON.parse(require("fs").readFileSync(__dirname+"/../apps.json"));
var app = apps.find(a=>a.id==appId);
if (!app) ERROR(`App ${JSON.stringify(appId)} not found`);
if (app.custom) ERROR(`App ${JSON.stringify(appId)} requires HTML customisation`);
/* we factory reset ONCE, get this, then we can use it to reset
state quickly for each new app */
var factoryFlashMemory = new Uint8Array(FLASH_SIZE);
jsRXCallback = function() {}; jsRXCallback = function() {};
jsUpdateGfx = function() {}; jsUpdateGfx = function() {};
function ERROR(s) {
console.error(s);
process.exit(1);
}
function getThumbnail(appId, imageFn) {
console.log("Thumbnail for "+appId);
var app = apps.find(a=>a.id==appId);
if (!app) ERROR(`App ${JSON.stringify(appId)} not found`);
if (app.custom) ERROR(`App ${JSON.stringify(appId)} requires HTML customisation`);
return new Promise(resolve => {
AppInfo.getFiles(app, {
fileGetter:function(url) {
console.log(__dirname+"/"+url);
return Promise.resolve(require("fs").readFileSync(__dirname+"/../"+url).toString("binary"));
}, settings : SETTINGS}).then(files => {
console.log("AppInfo returned");//, files);
flashMemory.set(factoryFlashMemory);
jsTransmitString("reset()\n");
console.log("Uploading...");
jsTransmitString("g.clear()\n");
var command = files.map(f=>f.cmd).join("\n")+"\n";
command += `load("${appId}.app.js")\n`;
jsTransmitString(command);
console.log("Done.");
jsStopIdle();
var rgba = new Uint8Array(GFX_WIDTH*GFX_HEIGHT*4);
jsGetGfxContents(rgba);
var rgba32 = new Uint32Array(rgba.buffer);
var firstPixel = rgba32[0];
var blankImage = rgba32.every(col=>col==firstPixel)
if (!blankImage) {
var Jimp = require("jimp");
let image = new Jimp(GFX_WIDTH, GFX_HEIGHT, function (err, image) {
if (err) throw err;
let buffer = image.bitmap.data;
buffer.set(rgba);
image.write(imageFn, (err) => {
if (err) throw err;
console.log("Image written as "+imageFn);
resolve(true);
});
});
} else {
console.log("Image is empty");
resolve(false);
}
});
});
}
var screenshots = [];
// wait until loaded... // wait until loaded...
setTimeout(function() { setTimeout(function() {
console.log("Loaded..."); console.log("Loaded...");
jsInit(); jsInit();
jsIdle(true); // not automatic jsIdle();
console.log("Factory reset");
AppInfo.getFiles(app, { jsTransmitString("Bangle.factoryReset()\n");
fileGetter:function(url) { factoryFlashMemory.set(flashMemory);
console.log(__dirname+"/"+url); console.log("Ready!");
return Promise.resolve(require("fs").readFileSync(__dirname+"/../"+url).toString("binary"));
}, settings : SETTINGS}).then(files => { if (singleAppId) {
//console.log(files); getThumbnail(singleAppId, "screenshots/"+singleAppId+".png")
var command = "Bangle.factoryReset()\n";
command += files.map(f=>f.cmd).join("\n")+"\n"; return;
command += `load("${appId}.app.js")\n`; }
//console.log(command);
console.log("Uploading..."); var appList = apps.filter(app => (!app.type || app.type=="clock") && !app.custom).map(app=>app.id);
jsTransmitString(command); // TODO: Work out about Bangle.js 1 or 2
console.log("Done."); var promise = Promise.resolve();
jsIdle(); appList.forEach(appId => {
jsIdle(); promise = promise.then(() => {
jsIdle(); return getThumbnail(appId, "screenshots/"+appId+".png").then(ok => {
jsStopIdle(); screenshots.push({
id : appId,
var rgba = new Uint8Array(GFX_WIDTH*GFX_HEIGHT*4); url : "screenshots/"+appId+".png"
jsGetGfxContents(rgba);
var Jimp = require("jimp");
let image = new Jimp(GFX_WIDTH, GFX_HEIGHT, function (err, image) {
if (err) throw err;
let buffer = image.bitmap.data;
buffer.set(rgba);
image.write(imageFn, (err) => {
if (err) throw err;
console.log("Image written as "+imageFn);
}); });
}); });
}); });
});
promise.then(function() {
console.log("Complete!");
require("fs").writeFileSync("screenshots.json", JSON.stringify(screenshots,null,2));
});
}); });