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LibGfx/PortableFormat: Simplify read_number signature

The function signature goes from:
`bool read_number(Streamer& streamer, TValue* value)`
to
`ErrorOr<u16> read_number(Streamer& streamer)`

It allows us to, on one hand use `ErrorOr` for error propagation,
removing an out parameter in the meantime, and on the other hand remove
the useless template.
This commit is contained in:
Lucas CHOLLET 2023-03-12 15:02:03 -04:00 committed by Andreas Kling
parent 387894cdf2
commit 9052a6febf
3 changed files with 26 additions and 29 deletions

View file

@ -22,30 +22,29 @@ bool read_image_data(PPMLoadingContext& context, Streamer& streamer)
color_data.ensure_capacity(context.width * context.height);
if (context.type == PPMLoadingContext::Type::ASCII) {
u16 red;
u16 green;
u16 blue;
while (true) {
if (!read_number(streamer, &red))
auto const red_or_error = read_number(streamer);
if (red_or_error.is_error())
break;
if (!read_whitespace(context, streamer))
break;
if (!read_number(streamer, &green))
auto const green_or_error = read_number(streamer);
if (green_or_error.is_error())
break;
if (!read_whitespace(context, streamer))
break;
if (!read_number(streamer, &blue))
auto const blue_or_error = read_number(streamer);
if (blue_or_error.is_error())
break;
if (!read_whitespace(context, streamer))
break;
Color color { (u8)red, (u8)green, (u8)blue };
Color color { (u8)red_or_error.value(), (u8)green_or_error.value(), (u8)blue_or_error.value() };
if (context.format_details.max_val < 255)
color = adjust_color(context.format_details.max_val, color);
color_data.append(color);