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LibGfx: Support BMP favicons with less than 32 bpp

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Adapt BMPImageDecoderPlugin to support BMP images included in ICOns.
ICOImageDecoderPlugin now uses BMPImageDecoderPlugin to decode all
BMP images instead of it's own ad-hoc decoder which only supported
32 bpp BMPs.
This commit is contained in:
Bruno Conde 2022-12-18 18:13:19 +00:00 • committed by Andreas Kling
parent 91609f9327
commit 7e9019a9c3
5 changed files with 192 additions and 158 deletions
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3
Userland/Libraries/LibGfx/BMPLoader.h
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@ -15,12 +15,13 @@ struct BMPLoadingContext;
class BMPImageDecoderPlugin final : public ImageDecoderPlugin {
public:
virtual ~BMPImageDecoderPlugin() override;
BMPImageDecoderPlugin(u8 const*, size_t);
BMPImageDecoderPlugin(u8 const*, size_t, bool is_included_in_ico = false);
virtual IntSize size() override;
virtual void set_volatile() override;
[[nodiscard]] virtual bool set_nonvolatile(bool& was_purged) override;
virtual bool sniff() override;
bool sniff_dib();
virtual bool is_animated() override;
virtual size_t loop_count() override;
virtual size_t frame_count() override;