Change Details

This patch tries to fix the problem for Windows only. The Windows Thumbnails files are cached in an internal file called `Thumbs.db`. Blender on the other hand saves thumb images to: `C:\Users\%user%\.thumbnails\large` This is inefficient as it forces the reading of the file and causes a huge slowness at times. In addition to taking up HD space. --- This patch uses the Win 32 API to obtain an address that points to a bitmap generated for the file. Ref T87621 Thus, it is no longer necessary to read the file. --- **Unresolved problems:** - `SHCreateItemFromParsingName` and `IShellItemImageFactory::GetImage` do not work well in multithreaded (frequent crashes)

On Windows the thumbnails of the files are cached in an internal file called `Thumbs.db`. Blender does not read the thumbs from this file, instead (for supported files with images, videos and .blend files), it loads, generates a thumb and saves he image in a cache located in: `C:\Users\%user%\.thumbnails\large` This is inefficient as it forces the loading of the files and causing a huge slowness at times. In addition to taking up HD space. --- This patch uses the Win 32 API to obtain an address that points to a bitmap in `Thumbs.db` generated for the file. Thus, it is no longer necessary to load the file. Ref T87621 --- **Unresolved problems:** - `SHCreateItemFromParsingName` and `IShellItemImageFactory::GetImage` do not work well in multithreaded (frequent crashes)

This patch tries to fixOn Windows the problem for Windows only. The Windows Thumbnailsthumbnails of the files are cached in an internal file called `Thumbs.db`. Blender on the other hand saves thumb images todoes not read the thumbs from this file, instead (for supported files with images, videos and .blend files), it loads, generates a thumb and saves he image in a cache located in: `C:\Users\%user%\.thumbnails\large` This is inefficient as it forces the reloading of the files and causesing a huge slowness at times. In addition to taking up HD space. --- This patch uses the Win 32 API to obtain an address that points to a bitmap in `Thumbs.db` generated forfor the file. Thus, it is no longer necessary to load the file. Ref T87621 Thus, it is no longer necessary to read the file. --- **Unresolved problems:** - `SHCreateItemFromParsingName` and `IShellItemImageFactory::GetImage` do not work well in multithreaded (frequent crashes)