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Improved image caching logic, to better estimate max image sizes possible, based on clip scale and keyframe settings... so we are always dealing with the smallest possible frame sizes for performance (without losing quality)

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Jonathan Thomas
2016-09-17 17:14:27 -05:00
parent 183b0714e2
commit 1743558f99
5 changed files with 78 additions and 6 deletions
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5
src/QtImageReader.cpp
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@@ -123,6 +123,11 @@ tr1::shared_ptr<Frame> QtImageReader::GetFrame(long int requested_frame) throw(R
// A max_width/max_height = 0 means do not scale (probably because we are scaling the image larger than 100%)
if (max_width != 0 && max_height != 0 && max_width < info.width && max_height < info.height)
{
// Remove cache that is no longer valid (if needed)
if (cached_image && !(cached_image->width() == max_width || cached_image->height() == max_height))
// Expire this cache
cached_image.reset();
// Scale image smaller (or use a previous scaled image)
if (!cached_image) {
// Create a scoped lock, allowing only a single thread to run the following code at one time