[backends/fbdev] Support framebuffers with different color depths
Support more framebuffer color depths REVIEW: 126262 BUG: 355569 FIXED-IN: 5.5.1icc-effect-5.14.5 v5.5.1
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14b9046ad2
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3247382752
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@ -157,15 +157,48 @@ QImage::Format FramebufferBackend::imageFormat() const
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if (m_fd < 0) {
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return QImage::Format_Invalid;
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}
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if (m_alpha.length == 0 &&
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qCDebug(KWIN_FB) << "Bits Per Pixel: " << m_bitsPerPixel;
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qCDebug(KWIN_FB) << "Buffer Length: " << m_bufferLength;
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qCDebug(KWIN_FB) << "Bytes Per Line: " << m_bytesPerLine;
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qCDebug(KWIN_FB) << "Alpha Length: " << m_alpha.length;
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qCDebug(KWIN_FB) << "Red Length: " << m_red.length;
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qCDebug(KWIN_FB) << "Green Length: " << m_green.length;
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qCDebug(KWIN_FB) << "Blue Length: " << m_blue.length;
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qCDebug(KWIN_FB) << "Blue Offset: " << m_blue.offset;
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qCDebug(KWIN_FB) << "Green Offset: " << m_green.offset;
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qCDebug(KWIN_FB) << "Red Offset: " << m_red.offset;
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qCDebug(KWIN_FB) << "Alpha Offset: " << m_alpha.offset;
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if (m_bitsPerPixel == 32 &&
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m_red.length == 8 &&
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m_green.length == 8 &&
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m_blue.length == 8 &&
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m_blue.offset == 0 &&
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m_green.offset == 8 &&
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m_red.offset == 16) {
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qCDebug(KWIN_FB) << "Framebuffer format is RGB32";
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return QImage::Format_RGB32;
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} else if (m_bitsPerPixel == 24 &&
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m_red.length == 8 &&
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m_green.length == 8 &&
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m_blue.length == 8 &&
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m_blue.offset == 0 &&
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m_green.offset == 8 &&
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m_red.offset == 16) {
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qCDebug(KWIN_FB) << "Framebuffer Format is RGB888";
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return QImage::Format_RGB888;
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} else if (m_bitsPerPixel == 16 &&
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m_red.length == 5 &&
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m_green.length == 6 &&
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m_blue.length == 5 &&
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m_blue.offset == 0 &&
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m_green.offset == 5 &&
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m_red.offset == 11) {
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qCDebug(KWIN_FB) << "Framebuffer Format is RGB16";
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return QImage::Format_RGB16;
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}
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qCWarning(KWIN_FB) << "Framebuffer format is unknown";
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return QImage::Format_Invalid;
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}
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