67 lines
1.7 KiB
C++
67 lines
1.7 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 "PBMLoader.h"
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#include "AK/Endian.h"
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#include "PortableImageLoaderCommon.h"
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#include "Userland/Libraries/LibGfx/Streamer.h"
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#include <string.h>
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namespace Gfx {
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bool read_image_data(PBMLoadingContext& context, Streamer& streamer)
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{
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u8 byte;
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Vector<Gfx::Color> color_data;
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if (context.type == PBMLoadingContext::Type::ASCII) {
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while (streamer.read(byte)) {
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if (byte == '0') {
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color_data.append(Color::White);
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} else if (byte == '1') {
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color_data.append(Color::Black);
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}
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}
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} else if (context.type == PBMLoadingContext::Type::RAWBITS) {
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size_t color_index = 0;
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while (streamer.read(byte)) {
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for (int i = 0; i < 8; i++) {
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int val = byte & 0x80;
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if (val == 0) {
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color_data.append(Color::White);
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} else {
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color_data.append(Color::Black);
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}
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byte = byte << 1;
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color_index++;
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if (color_index % context.width == 0) {
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break;
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}
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}
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}
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}
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size_t context_size = (u32)context.width * (u32)context.height;
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if (context_size != color_data.size()) {
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dbgln("Not enough color data in image.");
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return false;
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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 = PBMLoadingContext::State::Bitmap;
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return true;
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}
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}
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