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Kernel: Enable additional VirtIO displays only on first resolution set
Also, only allocate the amount of memory we actually need for the given resolution.
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8749235046
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56cd0f929e
5 changed files with 52 additions and 40 deletions
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@ -24,9 +24,6 @@ public:
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bool try_to_set_resolution(size_t width, size_t height);
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void clear_to_black();
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VMObject& vm_object() { return m_framebuffer->vmobject(); }
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Region& region() { return *m_framebuffer; }
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size_t width() const { return display_info().rect.width; }
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size_t height() const { return display_info().rect.height; }
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size_t pitch() const { return display_info().rect.width * 4; }
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@ -43,12 +40,16 @@ public:
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void draw_ntsc_test_pattern();
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u8* framebuffer_data();
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private:
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virtual const char* class_name() const override { return "VirtIOFrameBuffer"; }
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VirtIOGPURespDisplayInfo::VirtIOGPUDisplayOne const& display_info() const;
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VirtIOGPURespDisplayInfo::VirtIOGPUDisplayOne& display_info();
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void create_framebuffer();
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virtual int ioctl(FileDescription&, unsigned request, FlatPtr arg) override;
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virtual KResultOr<Region*> mmap(Process&, FileDescription&, const Range&, u64 offset, int prot, bool shared) override;
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virtual bool can_read(const FileDescription&, size_t) const override { return true; }
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