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Ladybird: Don't ask Qt to decode any images for us

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We should only rely on LibGfx to decode images for us, if LibGfx
can't decode an image that should be motivation to improve LibGfx,
not hidden by Qt picking up the slack :^)
This commit is contained in:
MacDue 2023-05-07 16:01:58 +01:00 committed by Andreas Kling
parent af8cd477b4
commit b5e593d0e7
Notes: sideshowbarker 2024-07-17 06:39:26 +09:00 
Author: https://github.com/MacDue
Commit: https://github.com/SerenityOS/serenity/commit/b5e593d0e7
Pull-request: https://github.com/SerenityOS/serenity/pull/18706
Reviewed-by: https://github.com/awesomekling
1 changed files with 1 additions and 38 deletions
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39
Ladybird/ImageCodecPluginLadybird.cpp
View file

@ -8,35 +8,12 @@
#include "ImageCodecPluginLadybird.h"
#include <LibGfx/Bitmap.h>
#include <LibGfx/ImageFormats/ImageDecoder.h>
#include <QImage>
namespace Ladybird {
ImageCodecPluginLadybird::~ImageCodecPluginLadybird() = default;
static Optional<Web::Platform::DecodedImage> decode_image_with_qt(ReadonlyBytes data)
{
auto image = QImage::fromData(data.data(), static_cast<int>(data.size()));
if (image.isNull())
return {};
image = image.convertToFormat(QImage::Format::Format_ARGB32);
auto bitmap = MUST(Gfx::Bitmap::create(Gfx::BitmapFormat::BGRA8888, Gfx::IntSize(image.width(), image.height())));
for (int y = 0; y < image.height(); ++y) {
memcpy(bitmap->scanline_u8(y), image.scanLine(y), image.width() * 4);
}
Vector<Web::Platform::Frame> frames;
frames.append(Web::Platform::Frame {
bitmap,
});
return Web::Platform::DecodedImage {
false,
0,
move(frames),
};
}
static Optional<Web::Platform::DecodedImage> decode_image_with_libgfx(ReadonlyBytes data)
Optional<Web::Platform::DecodedImage> ImageCodecPluginLadybird::decode_image(ReadonlyBytes data)
{
auto decoder = Gfx::ImageDecoder::try_create_for_raw_bytes(data);
@ -67,18 +44,4 @@ static Optional<Web::Platform::DecodedImage> decode_image_with_libgfx(ReadonlyBy
};
}
Optional<Web::Platform::DecodedImage> ImageCodecPluginLadybird::decode_image(ReadonlyBytes data)
{
auto image = decode_image_with_libgfx(data);
if (image.has_value())
return image;
// NOTE: Even though Qt can decode SVG images for us, let's not do that.
// We should handle <img src="foo.svg"> ourselves instead of cheating by using Qt.
if (data.starts_with("<?xml"sv.bytes()) || data.starts_with("<svg"sv.bytes()))
return {};
return decode_image_with_qt(data);
}
}