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7cafd7d177
Each one of `[PBM, PGM, PPM]Loader` used yet another stream-like relic. This patch ports all of them to `AK::Stream`.
70 lines
2 KiB
C++
70 lines
2 KiB
C++
/*
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* Copyright (c) 2020, Hüseyin ASLITÜRK <asliturk@hotmail.com>
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* Copyright (c) 2022, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "PPMLoader.h"
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#include "PortableImageLoaderCommon.h"
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namespace Gfx {
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bool read_image_data(PPMLoadingContext& context)
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{
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Vector<Gfx::Color> color_data;
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auto const context_size = context.width * context.height;
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color_data.resize(context_size);
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auto& stream = *context.stream;
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if (context.type == PPMLoadingContext::Type::ASCII) {
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for (u64 i = 0; i < context_size; ++i) {
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auto const red_or_error = read_number(stream);
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if (red_or_error.is_error())
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return false;
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if (read_whitespace(context).is_error())
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return false;
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auto const green_or_error = read_number(stream);
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if (green_or_error.is_error())
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return false;
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if (read_whitespace(context).is_error())
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return false;
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auto const blue_or_error = read_number(stream);
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if (blue_or_error.is_error())
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return false;
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if (read_whitespace(context).is_error())
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return false;
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Color color { (u8)red_or_error.value(), (u8)green_or_error.value(), (u8)blue_or_error.value() };
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if (context.format_details.max_val < 255)
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color = adjust_color(context.format_details.max_val, color);
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color_data[i] = color;
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}
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} else if (context.type == PPMLoadingContext::Type::RAWBITS) {
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for (u64 i = 0; i < context_size; ++i) {
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Array<u8, 3> pixel;
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Bytes buffer { pixel };
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auto const result = stream.read_until_filled(buffer);
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if (result.is_error())
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return false;
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color_data[i] = { pixel[0], pixel[1], pixel[2] };
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}
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}
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if (!create_bitmap(context)) {
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return false;
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}
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set_pixels(context, color_data);
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context.state = PPMLoadingContext::State::Bitmap;
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return true;
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}
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}
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