Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 114x 114x 114x 114x 6x 114x 108x 108x 108x 6x 6x | export default function getInterleavedFrames(imageIds) {
const minImageIdIndex = 0;
const maxImageIdIndex = imageIds.length - 1;
const middleImageIdIndex = Math.floor(imageIds.length / 2);
let lowerImageIdIndex = middleImageIdIndex;
let upperImageIdIndex = middleImageIdIndex;
// Build up an array of images to prefetch, starting with the current image.
const imageIdsToPrefetch = [
{ imageId: imageIds[middleImageIdIndex], imageIdIndex: middleImageIdIndex },
];
const prefetchQueuedFilled = {
currentPositionDownToMinimum: false,
currentPositionUpToMaximum: false,
};
// Check if on edges and some criteria is already fulfilled
Iif (middleImageIdIndex === minImageIdIndex) {
prefetchQueuedFilled.currentPositionDownToMinimum = true;
} else Iif (middleImageIdIndex === maxImageIdIndex) {
prefetchQueuedFilled.currentPositionUpToMaximum = true;
}
while (
!prefetchQueuedFilled.currentPositionDownToMinimum ||
!prefetchQueuedFilled.currentPositionUpToMaximum
) {
if (!prefetchQueuedFilled.currentPositionDownToMinimum) {
// Add imageId below
lowerImageIdIndex--;
imageIdsToPrefetch.push({
imageId: imageIds[lowerImageIdIndex],
imageIdIndex: lowerImageIdIndex,
});
if (lowerImageIdIndex === minImageIdIndex) {
prefetchQueuedFilled.currentPositionDownToMinimum = true;
}
}
if (!prefetchQueuedFilled.currentPositionUpToMaximum) {
// Add imageId above
upperImageIdIndex++;
imageIdsToPrefetch.push({
imageId: imageIds[upperImageIdIndex],
imageIdIndex: upperImageIdIndex,
});
if (upperImageIdIndex === maxImageIdIndex) {
prefetchQueuedFilled.currentPositionUpToMaximum = true;
}
}
}
return imageIdsToPrefetch;
}
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