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AK: Make MappedFile heap-allocated and ref-counted

Let's adapt this class a bit better to how it's actually being used.

Instead of having valid/invalid states and storing an error in case
it's invalid, a MappedFile is now always valid, and the factory
function that creates it will return an OSError if mapping fails.
This commit is contained in:
Andreas Kling 2021-01-10 15:55:54 +01:00
parent 70fce5c4c7
commit 2f3b901f7f
36 changed files with 184 additions and 199 deletions

View file

@ -107,10 +107,10 @@ struct GIFLoadingContext {
RefPtr<Gfx::Bitmap> load_gif(const StringView& path)
{
MappedFile mapped_file(path);
if (!mapped_file.is_valid())
auto file_or_error = MappedFile::map(path);
if (file_or_error.is_error())
return nullptr;
GIFImageDecoderPlugin gif_decoder((const u8*)mapped_file.data(), mapped_file.size());
GIFImageDecoderPlugin gif_decoder((const u8*)file_or_error.value()->data(), file_or_error.value()->size());
auto bitmap = gif_decoder.bitmap();
if (bitmap)
bitmap->set_mmap_name(String::formatted("Gfx::Bitmap [{}] - Decoded GIF: {}", bitmap->size(), LexicalPath::canonicalized_path(path)));