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WindowServer: Fix mapping the correct framebuffer size
If we don't support double buffering for a certain type of hardware, don't try to map with size calculated with (pitch * height * 2), as it will result in trying to map more memory than is available in the framebuffer memory range.
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@ -85,7 +85,11 @@ ErrorOr<void> HardwareScreenBackend::map_framebuffer()
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if (rc != 0) {
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return Error::from_syscall("graphics_connector_get_head_mode_setting"sv, rc);
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}
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m_size_in_bytes = mode_setting.horizontal_stride * mode_setting.vertical_active * 2;
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if (m_can_set_head_buffer) {
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m_size_in_bytes = mode_setting.horizontal_stride * mode_setting.vertical_active * 2;
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} else {
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m_size_in_bytes = mode_setting.horizontal_stride * mode_setting.vertical_active;
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}
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m_framebuffer = (Gfx::ARGB32*)TRY(Core::System::mmap(nullptr, m_size_in_bytes, PROT_READ | PROT_WRITE, MAP_SHARED, m_display_connector_fd, 0));
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if (m_can_set_head_buffer) {
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