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AP_OSD:add aspect ratio correction for DisplayPort #22901

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merged 1 commit into from Feb 21, 2023
Merged

AP_OSD:add aspect ratio correction for DisplayPort #22901

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4 changes: 2 additions & 2 deletions libraries/AP_OSD/AP_OSD_Backend.h
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Expand Up @@ -26,7 +26,7 @@ class AP_OSD_Backend

public:
//constructor
AP_OSD_Backend(AP_OSD &osd): _osd(osd) {};
AP_OSD_Backend(AP_OSD &osd): _osd(osd) {}

//destructor
virtual ~AP_OSD_Backend(void) {}
Expand All @@ -51,7 +51,7 @@ class AP_OSD_Backend
virtual void clear()
{
blink_phase = (blink_phase+1)%4;
};
}

// copy the backend specific symbol set to the OSD lookup table
virtual void init_symbol_set(uint8_t *symbols, const uint8_t size);
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8 changes: 8 additions & 0 deletions libraries/AP_OSD/AP_OSD_MSP_DisplayPort.cpp
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Expand Up @@ -133,4 +133,12 @@ AP_OSD_Backend *AP_OSD_MSP_DisplayPort::probe(AP_OSD &osd)
}
return backend;
}

// return a correction factor used to display angles correctly
float AP_OSD_MSP_DisplayPort::get_aspect_ratio_correction() const
{
return 12.0/18.0;
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}


#endif
4 changes: 3 additions & 1 deletion libraries/AP_OSD/AP_OSD_MSP_DisplayPort.h
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Expand Up @@ -28,6 +28,8 @@ class AP_OSD_MSP_DisplayPort : public AP_OSD_Backend
// used to initialize the uart in the correct thread
void osd_thread_run_once() override;

// return a correction factor used to display angles correctly
float get_aspect_ratio_correction() const override;

protected:
uint8_t format_string_for_osd(char* dst, uint8_t size, bool decimal_packed, const char *fmt, va_list ap) override;
Expand Down Expand Up @@ -211,4 +213,4 @@ class AP_OSD_MSP_DisplayPort : public AP_OSD_Backend

bool _blink_on;
};
#endif
#endif