雷电芽衣andClaude
c864304695
A layered image editor for Linux and Omarchy, ported from Compositor (github.com/robbietilton/Compositor), whose Swift source is its specification. It reads and writes Compositor's .comp projects. Packages for Ubuntu, Fedora and Arch come from the release workflow; scripts/install/ holds one install script per distribution family, and flake.nix serves NixOS. Co-Authored-By: Claude <noreply@anthropic.com>
47 lines
1.9 KiB
C++
47 lines
1.9 KiB
C++
#include <QBuffer>
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#include <QColorSpace>
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#include <QFile>
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#include <QGuiApplication>
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#include <QImage>
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#include <QImageWriter>
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int main(int argc, char **argv)
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{
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QGuiApplication app(argc, argv);
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// Red on the left; right: clear over half-clear blue.
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QImage red(64, 32, QImage::Format_RGBA8888);
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red.fill(Qt::transparent);
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// (200, 100, 50) left; right: white over dark gray.
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QImage warm(64, 32, QImage::Format_RGB888);
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warm.fill(Qt::white);
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for (int y = 16; y < 32; ++y) {
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for (int x = 32; x < 64; ++x)
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warm.setPixel(x, y, qRgb(16, 16, 16));
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}
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for (int y = 0; y < 32; ++y) {
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for (int x = 0; x < 32; ++x) {
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red.setPixel(x, y, qRgba(255, 0, 0, 255));
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warm.setPixel(x, y, qRgb(200, 100, 50));
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if (y >= 16)
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red.setPixel(x + 32, y, qRgba(0, 0, 255, 128));
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}
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}
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// The same picture with its colours already multiplied.
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const QImage multiplied = red.convertToFormat(QImage::Format_RGBA8888_Premultiplied);
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const QImage stored(multiplied.constBits(), 64, 32, multiplied.bytesPerLine(), QImage::Format_RGBA8888);
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bool written = red.save("red.png") && stored.save("premultiplied.png") && warm.save("warm.png");
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// Display P3 by ICC profile, turned by EXIF orientation 6.
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warm.setColorSpace(QColorSpace::DisplayP3);
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QByteArray jpeg;
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QBuffer buffer(&jpeg);
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QImageWriter writer(&buffer, "jpeg");
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writer.setQuality(100);
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written = written && writer.write(warm);
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QByteArray exif("\xFF\xE1\x00\x22" "Exif\0\0" "II\x2A\x00\x08\x00\x00\x00" "\x01\x00" "\x12\x01\x03\x00\x01\x00\x00\x00", 28);
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exif += QByteArray("\x06\x00\x00\x00" "\x00\x00\x00\x00", 8);
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jpeg.insert(2, exif);
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QFile file("turned-p3.jpg");
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written = written && file.open(QIODevice::WriteOnly) && file.write(jpeg) == jpeg.size();
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return written ? 0 : 1;
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}
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