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Daum PotPlayer 版本更新信息
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[1.5.23766] 2010/08/18
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+ 添加以屏幕中心位置播放功能
+ 添加保留字幕边距功能
+ 添加直接保存 DHTV 流功能
+ 添加自动播放命令行参数(/autoplay)
+ 添加可使用 Direct3D 9Ex 功能
+ 添加平滑字体整体输出功能
+ 添加首选音轨语言功能
D3D9 Ex 介绍：
http://msdn.microsoft.com/en-us/library/ee890072(VS.85).aspx
What's Improved about Direct3D 9Ex for Windows 7
Flip Mode Presentation of Direct3D 9Ex is an improved mode of presenting images in Direct3D 9Ex that efficiently hands off rendered images to Windows 7 Desktop Window Manager (DWM) for composition. Beginning in Windows Vista, DWM composes the entire Desktop. When DWM is enabled, windowed mode applications present their contents on the Desktop by using a method called Blt Mode Present to DWM (or Blt Model). With Blt Model, DWM maintains a copy of the Direct3D 9Ex rendered surface for Desktop composition. When the application updates, the new content is copied to the DWM surface through a blt. For applications that contain Direct3D and GDI content, the GDI data is also copied onto the DWM surface.
Available in Windows 7, Flip Mode Present to DWM (or Flip Model) is a new presentation method that essentially enables passing handles of application surfaces between windowed mode applications and DWM. In addition to saving resources, Flip Model supports enhanced present statistics.
Present statistics are frame-timing information that applications can use to synchronize video and audio streams and recover from video playback glitches. The frame-timing information in present statistics allows applications to adjust the presentation rate of their video frames for smoother presentation. In Windows Vista, where DWM maintains a corresponding copy of the frame surface for Desktop composition, applications can use present statistics provided by DWM. This method of obtaining present statistics will still be available in Windows 7 for existing applications.
In Windows 7, Direct3D 9Ex-based applications that adopt Flip Model should use D3D9Ex APIs to obtain present statistics. When DWM is enabled, windowed mode and full-screen exclusive mode Direct3D 9Ex applications can expect the same present statistics information when using Flip Model. Direct3D 9Ex Flip Model present statistics enable applications to query for present statistics in real time, rather than after the frame has been shown on screen; the same present statistics information is available for windowed-mode Flip-Model enabled applications as full-screen applications; an added flag in D3D9Ex APIs allows Flip Model applications to effectively discard late frames at presentation time.
Direct3D 9Ex Flip Model should be used by new video or frame rate-based presentation applications that target Windows 7. Because of the synchronization between DWM and the Direct3D 9Ex runtime, applications that use Flip Model should specify between 2 to 4 backbuffers to ensure smooth presentation. Those applications that use present statistics information will benefit from using Flip Model enabled present statistics enhancements. |
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发表于 2010-8-20 19:43
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