Information processing apparatus and display control method

Abstract

When the fact that the display mode of motion picture data is a full screen mode is detected, the display control mode for sending a video signal generated by a graphics controller to an LCD is switched from a normal mode for sending the video signal to the LCD without interposition of a high quality video engine to a high quality mode for sending the video signal to the LCD with interposition of the high quality video engine. The high quality video engine enlarges the screen size of the video signal in either linear scaling mode or nonlinear scaling mode designated by a user. Scaling is validated only in the case were motion picture data are displayed in the full screen mode.

1. An information processing apparatus comprising:
 a display device capable of displaying motion picture data;  
 a display control portion which generates a video signal to form a display image to be displayed on the display device;  
 a video processing portion which adjusts a quality of the video signal generated by the display control portion and scales a size of the video signal generated by the display control portion in either one of a linear scaling mode and nonlinear scaling mode; and  
 a control unit which sets a display control mode for sending the video signal to the display device as a first mode for sending the video signal to the display device with interposition of the video processing portion when the quality of the video signal generated by the display control portion is adjusted, and the control unit which sets the display control mode for sending the video signal to the display device as a second mode for sending the video signal to the display device without interposition of the video processing portion when the quality of the video signal generated by the display control portion is not adjusted.  
 
     
     
       2. An information processing apparatus according to  claim 1 , further comprising:
 a judgment unit which judges whether display mode for displaying the motion picture data is a full screen mode or not; and  
 wherein the video processing portion enlarges the size of the video signal generated by the display control portion, and the control unit sets the display control mode as the first mode when the display mode is judged as the full screen mode, and the control unit sets the display control mode as the second mode when the display mode is not judged as the full screen mode.  
 
     
     
       3. An information processing apparatus according to  claim 2 , wherein the judgment unit includes:
 a unit which judges that the display mode is the full screen mode, in response to a request designating the full screen mode which is issued from an application program for playing back the motion picture data.  
 
     
     
       4. An information processing apparatus to  claim 1 , further comprising:
 a receiver which receives broadcast program data, wherein the motion picture data are broadcast program data received by the receiver.  
 
     
     
       5. An information processing apparatus according to  claim 1 , further comprising:
 a drive unit which drives a storage medium, wherein the motion picture data are data reproduced from the storage medium by the drive unit.  
 
     
     
       6. A display control method for displaying motion picture data on a display device of an information processing apparatus, the information processing apparatus including a display control portion which generates a video signal to form a display image to be displayed on the display device, and a video processing portion which adjusts the video signal generated by the display control portion and scales a size of the video signal generated by the display control portion in either one of a linear scaling mode and a nonlinear scaling mode, the display control method comprising:
 designated either one of the linear scaling mode and the nonlinear scaling mode as a scaling mode to be used by the video processing portion;  
 setting a display control mode for sending the video signal to the display device as a first mode for sending the video signal to the display device with interposition of the video processing portion when the quality of the video screen generated by the display control portion is adjusted; and  
 setting the display control mode as a second mode for sending the video signal to the display device without interposition of the video processing portion when the quality of the video signal generated by the display control portion is not adjusted.  
 
     
     
       7. A display control method according to  claim 6 , further comprising judging whether or not display mode for displaying the motion picture data is full screen mode;
 wherein the setting sets the display control mode as the first mode when the display mode is judged as the full screen mode, and the setting sets the display control mode as the second mode when the display mode is not judged as the full screen mode.  
 
     
     
       8. A display control method according to  claim 7 , wherein whether or not the display mode for displaying the motion picture data is the full screen mode is judged in response to a request designating the full screen mode issued from an application program for playing back the motion picture data. 
     
     
       9. A display control method according to  claim 6 , wherein the information processing apparatus further includes a receiver which receives broadcast program data, and
 wherein the motion picture data are broadcast program data received by the receiver.  
 
     
     
       10. A display control method according to  claim 6 , wherein, the information processing apparatus further includes a drive unit which drives a storage medium, and
 wherein the motion picture data is a data reproduced from the storage medium by the drive unit.  
 
     
     
       11. An information processing apparatus comprising:
 a display device capable of displaying motion picture data;  
 a display control portion which generates a video signal to form a display image to be displayed on the display device;  
 a unit which designs  designates either one of a linear scaling mode and a nonlinear scaling mode as a scaling mode for enlarging the motion picture data;  
 a video processing portion which enlarges a screen size of the video signal generated by the display control portion in the designated mode;  
 a judgment unit which judges whether display mode for displaying the motion picture data is a full screen mode or not; and  
 a control unit which sets a display control mode for sending the video signal to the display device as a first mode for sending the video signal to the display device with interposition of the video processing portion when the display mode is judged as the full screen mode, and the control unit which sets the display control mode for sending the video signal to the display device as a second mode for sending the video signal to the display device without interposition of the video processing portion when the display mode is not judged as the full screen mode.  
 
     
     
       12. An information processing apparatus according to  claim 11 , wherein the video processing portion includes a quality adjustment portion which adjusts a quality of the video signal before the screen size of the video signal is enlarged. 
     
     
       13. An information processing apparatus according to  claim 11 , wherein the judgment unit includes:
 a unit which judges that the display mode is the full screen mode, in response to a request designating the full screen mode which is issued from an application program for playing back the motion picture data.  
 
     
     
       14. An information processing apparatus comprising:
   a display device;        a display controller configured to generate a video signal to form a display image to be displayed on the display device;        a designating unit configured to designate either one of a linear scaling mode and a nonlinear scaling mode to enlarge a motion picture data to be displayed on the display device;        a video processor configured to enlarge a screen size of the motion picture data in the designated mode; and        a control unit configured to set a first mode to send the video signal to the display device with interposition of the video processor when the motion picture data is displayed on the display device in a full screen mode.     
     
     
       15. The apparatus of  claim 14 , wherein the control unit is configured to set a second mode to send the video signal to the display device without interposition of the video processor when the motion picture data is displayed on the display device in a normal screen mode. 
     
     
       16. The apparatus of  claim 14 , further comprising:
   a quality adjustment unit configured to adjust a quality of the video signal before the screen size of the motion picture data is enlarged.     
     
     
       17. The apparatus of  claim 14 , further comprising:
   a determining unit configured to determine whether a display mode for displaying the motion picture data is set to the full screen mode or not in response to a request issued from an application program for playing back the motion picture data.     
     
     
       18. The apparatus of  claim 14 , further comprising:
   a receiver configured to receive broadcast program data,        wherein the motion picture data are broadcast program data received by the receiver.     
     
     
       19. The apparatus of  claim 14 , further comprising:
   a drive unit configured to access a storage medium to reproduce data stored in the storage medium,        wherein the motion picture data are the data reproduced by the drive unit.     
     
     
       20. An information processing apparatus comprising:
   a display device capable of displaying a motion picture data;        a display controller configured to generate a video signal to form a display image to be displayed on the display device;        a video processor configured to enlarge a screen size of the video signal generated by the display controller in either one of a linear scaling mode and a nonlinear scaling mode; and        a control unit configured to set a first mode to send the video signal to the display device with interposition of the video processor when the motion picture data is displayed on the display device in a full screen mode.     
     
     
       21. The apparatus of  claim 20 , wherein the control unit is configured to set a second mode to send the video signal to the display device without interposition of the video processor when the motion picture data is displayed on the display device in a normal screen mode. 
     
     
       22. The apparatus of  claim 20 , further comprising:
   a designating unit configured to designate either one of a linear scaling mode and a nonlinear scaling mode to enlarge a motion picture data to be displayed on the display device.     
     
     
       23. The apparatus of  claim 20 , further comprising:
   a quality adjustment unit configured to adjust a quality of the video signal before the screen size of the motion picture data is enlarged.     
     
     
       24. The apparatus of  claim 20 , further comprising:
   a determining unit configured to determine whether a display mode for displaying the motion picture data is set to the full screen mode or not.     
     
     
       25. The apparatus of  claim 20 , further comprising:
   a receiver configured to receive broadcast program data,        wherein the motion picture data are broadcast program data received by the receiver.     
     
     
       26. The apparatus of  claim 20 , further comprising:
   a drive unit configured to access a storage medium to reproduce data stored in the storage medium,        wherein the motion picture data are the data reproduced by the drive unit.     
     
     
       27. An information processing apparatus comprising:
   a display device;        a display controller configured to generate a video signal to form a display image to be displayed on the display device,        a designating unit configured to designate either one of a linear scaling mode and a nonlinear scaling mode to enlarge a motion picture data to be displayed on the display device;        a video processor configured to enlarge a screen size of the motion picture data in the designated mode; and        a control unit configured to set a first mode to send the video signal to the display device with interposition of the video processor when a display mode for displaying the motion picture data is set to a full screen mode and to set a second mode to send the video signal to the display device without interposition of the video processor when the display mode for displaying the motion picture data is not set to the full screen mode.     
     
     
       28. The apparatus of  claim 27 , further comprising:
   a quality adjustment unit configured to adjust a quality of the video signal before the screen size of the motion picture data is enlarged.     
     
     
       29. The apparatus of  claim 27 , further comprising:
   a determining unit configured to determine whether the display mode for displaying the motion picture data is set up to the full screen mode or not in response to a request issued from an application program for playing back the motion picture data.     
     
     
       30. The apparatus of  claim 27 , further comprising:
   a receiver configured to receive broadcast program data,        wherein the motion picture data are broadcast program data received by the receiver.     
     
     
       31. The apparatus of  claim 27 , further comprising:
   a drive unit configured to access a storage medium to reproduce data stored in the storage medium,        wherein the motion picture data are data reproduced by the drive unit.