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LibVideo/VP9: Choose whether/how to show new frames using an enum
There are three mutually exclusive frame-showing states: - Show no new frame, only store the frame as a reference. - Show a newly decoded frame. - Show frame from the reference frame store. Since they are mutually exclusive, using an enum rather than two bools makes more sense.
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befcd479ae
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4 changed files with 24 additions and 9 deletions
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@ -237,17 +237,26 @@ struct PersistentBlockContext {
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u8 segment_id { 0 };
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};
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enum class FrameShowMode {
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CreateAndShowNewFrame,
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ShowExistingFrame,
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DoNotShowFrame,
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};
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struct FrameContext {
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public:
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u8 profile { 0 };
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bool shows_existing_frame() const { return m_show_existing_frame; }
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u8 existing_frame_index() const { return m_existing_frame_index; }
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bool shows_a_frame() const { return m_frame_show_mode != FrameShowMode::DoNotShowFrame; }
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bool shows_a_new_frame() const { return m_frame_show_mode == FrameShowMode::CreateAndShowNewFrame; }
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bool shows_existing_frame() const { return m_frame_show_mode == FrameShowMode::ShowExistingFrame; }
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void set_frame_hidden() { m_frame_show_mode = FrameShowMode::DoNotShowFrame; }
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void set_existing_frame_to_show(u8 index)
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{
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m_show_existing_frame = true;
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m_frame_show_mode = FrameShowMode::ShowExistingFrame;
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m_existing_frame_index = index;
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}
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u8 existing_frame_index() const { return m_existing_frame_index; }
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Gfx::Size<u32> size() const { return m_size; }
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ErrorOr<void> set_size(Gfx::Size<u32> size)
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@ -273,7 +282,7 @@ public:
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private:
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friend struct TileContext;
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bool m_show_existing_frame { false };
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FrameShowMode m_frame_show_mode { FrameShowMode::CreateAndShowNewFrame };
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u8 m_existing_frame_index { 0 };
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Gfx::Size<u32> m_size { 0, 0 };
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