34 function transform_layer(layer, {parentBounds, parentHidden}) {  argument
35   function get_size(layer) {  argument
36     var size = layer.size || {w: 0, h: 0};
45   function get_crop(layer) {  argument
46     var crop = layer.crop || {left: 0, top: 0, right: 0 , bottom:0};
73   function get_cropped_bounds(layer, parentBounds) {  argument
74     var size = get_size(layer);
75     var crop = get_crop(layer);
97   function transform_bounds(layer, parentBounds) {  argument
98     var result = layer.bounds || get_cropped_bounds(layer, parentBounds);
99     var tx = (layer.position) ? layer.position.x || 0 : 0;
100     var ty = (layer.position) ? layer.position.y || 0 : 0;
102     result.label = layer.name;
103     result.transform = layer.transform || {dsdx:1, dtdx:0, dsdy:0, dtdy:1};
109   function is_opaque(layer) {  argument
110     return layer.color == undefined || (layer.color.a || 0) > 0;
151   function is_visible(layer) {  argument
152     var visible = (layer.activeBuffer || layer.type === 'ColorLayer')
153                   && !hidden && is_opaque(layer);
154     visible &= !is_empty(layer.visibleRegion);
158   function postprocess_flags(layer) {  argument
159     if (!layer.flags) return;
161     if (layer.flags & FLAG_HIDDEN) {
164     if (layer.flags & FLAG_OPAQUE) {
167     if (layer.flags & FLAG_SECURE) {
171     layer.flags = verboseFlags.join('|') + " (" + layer.flags + ")";
175   var rect = transform_bounds(layer, parentBounds);
176   var hidden = (layer.flags & FLAG_HIDDEN) != 0 || parentHidden;
177   var visible = is_visible(layer);
185   if (layer.name.startsWith("Display Root#0") && layer.sourceBounds) {
186     bounds = {width: layer.sourceBounds.right, height: layer.sourceBounds.bottom};
189   if ((layer.zOrderRelativeOf || -1) !== -1) {
192   if (layer.zOrderRelativeParentOf !== undefined) {
195   if (layer.missing) {
198   function visibilityReason(layer) {  argument
200     if (!layer.color || layer.color.a === 0) {
203     if (layer.flags && (layer.flags & FLAG_HIDDEN != 0)) {
206     if (is_rect_empty_and_valid(layer.crop)) {
209     if (is_transform_invalid(layer.transform)) {
212     if (layer.isRelativeOf && layer.zOrderRelativeOf == -1) {
218     layer.invisibleDueTo = 'Hidden by parent with ID: ' + parentHidden;
220     let reasons_hidden = visibilityReason(layer);
221     let isBufferLayer = (layer.type === 'BufferStateLayer' || layer.type === 'BufferQueueLayer');
223       layer.invisibleDueTo = reasons_hidden;
224       parentHidden = layer.id
225     } else if (layer.type === 'ContainerLayer') {
226         layer.invisibleDueTo = 'This is a ContainerLayer.';
227     } else if (isBufferLayer && (!layer.activeBuffer ||
228           layer.activeBuffer.height === 0 || layer.activeBuffer.width === 0)) {
229         layer.invisibleDueTo = 'The buffer is empty.';
231         layer.invisibleDueTo = 'Unknown. Occluded by another layer?';
235       (layer) => transform_layer(layer, {parentBounds: rect, parentHidden: parentHidden});
236   postprocess_flags(layer);
238     obj: layer,
240     name: layer.id + ": " + layer.name,
242       [layer.resolvedChildren, transform_layer_with_parent_hidden],