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ImageViewer: Transform the image's dimension accordingly to the metadata

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Exif metadata have two tags to store the pixel density along each axis.
If both values are different and no action is taken, the resulting image
will appear deformed. This commit scales the displayed bitmap
accordingly to these tags in order to show the image in its intended
shape. This unfortunately includes a lot of plumbing to get this
information through IPC.
This commit is contained in:
Lucas CHOLLET
2024-02-14 01:15:06 -05:00
committed by Sam Atkins
parent 8dd887b3c8
commit 8e2102fb73
Notes: sideshowbarker 2024-07-18 00:54:03 +09:00 
Author: https://github.com/LucasChollet
Commit: https://github.com/SerenityOS/serenity/commit/8e2102fb73
Pull-request: https://github.com/SerenityOS/serenity/pull/23193
Reviewed-by: https://github.com/gmta
6 changed files with 27 additions and 8 deletions
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Userland/Libraries/LibImageDecoderClient/Client.h
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@@ -20,6 +20,7 @@ struct Frame {
struct DecodedImage {
bool is_animated { false };
Gfx::FloatPoint scale { 1, 1 };
u32 loop_count { 0 };
Vector<Frame> frames;
};