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LibGfx: Use ErrorOr<T> for Bitmap::try_create()

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Another one that was used in a fajillion places.
This commit is contained in:
Andreas Kling 2021-11-06 19:30:59 +01:00
parent 235f39e449
commit 0de33b3d6c
43 changed files with 157 additions and 141 deletions
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19
Userland/Libraries/LibGfx/PNGLoader.cpp
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@ -47,7 +47,7 @@ struct [[gnu::packed]] PaletteEntry {
u8 r;
u8 g;
u8 b;
//u8 a;
// u8 a;
};
template<typename T>
@ -603,13 +603,13 @@ static bool decode_png_bitmap_simple(PNGLoadingContext& context)
}
}
context.bitmap = Bitmap::try_create(context.has_alpha() ? BitmapFormat::BGRA8888 : BitmapFormat::BGRx8888, { context.width, context.height });
if (!context.bitmap) {
auto bitmap_or_error = Bitmap::try_create(context.has_alpha() ? BitmapFormat::BGRA8888 : BitmapFormat::BGRx8888, { context.width, context.height });
if (bitmap_or_error.is_error()) {
context.state = PNGLoadingContext::State::Error;
return false;
}
context.bitmap = bitmap_or_error.release_value();
return unfilter(context);
}
@ -705,7 +705,11 @@ static bool decode_adam7_pass(PNGLoadingContext& context, Streamer& streamer, in
}
}
subimage_context.bitmap = Bitmap::try_create(context.bitmap->format(), { subimage_context.width, subimage_context.height });
auto bitmap_or_error = Bitmap::try_create(context.bitmap->format(), { subimage_context.width, subimage_context.height });
if (bitmap_or_error.is_error())
return false;
subimage_context.bitmap = bitmap_or_error.release_value_but_fixme_should_propagate_errors();
if (!unfilter(subimage_context)) {
subimage_context.bitmap = nullptr;
return false;
@ -723,9 +727,10 @@ static bool decode_adam7_pass(PNGLoadingContext& context, Streamer& streamer, in
static bool decode_png_adam7(PNGLoadingContext& context)
{
Streamer streamer(context.decompression_buffer->data(), context.decompression_buffer->size());
context.bitmap = Bitmap::try_create(context.has_alpha() ? BitmapFormat::BGRA8888 : BitmapFormat::BGRx8888, { context.width, context.height });
if (!context.bitmap)
auto bitmap_or_error = Bitmap::try_create(context.has_alpha() ? BitmapFormat::BGRA8888 : BitmapFormat::BGRx8888, { context.width, context.height });
if (bitmap_or_error.is_error())
return false;
context.bitmap = bitmap_or_error.release_value_but_fixme_should_propagate_errors();
for (int pass = 1; pass <= 7; ++pass) {
if (!decode_adam7_pass(context, streamer, pass))