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am a9b677fc: Merge "improve h/w composer documentation" into ics-mr1

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* commit 'a9b677fce432b29ab8f61e13796f34880dc0fe0f':
  improve h/w composer documentation
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Mathias Agopian 2011-11-28 16:08:48 -08:00 committed by Android Git Automerger
commit 608e2881ef
1 changed files with 5 additions and 0 deletions
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5
include/hardware/hwcomposer.h
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@ -287,6 +287,11 @@ typedef struct hwc_composer_device {
* entire composition has been handled by SurfaceFlinger with OpenGL ES.
* In this case, (*set)() behaves just like eglSwapBuffers().
*
* dpy, sur, and list are set to NULL to indicate that the screen is
* turning off. This happens WITHOUT prepare() being called first.
* This is a good time to free h/w resources and/or power
* the relevant h/w blocks down.
*
* IMPORTANT NOTE: there is an implicit layer containing opaque black
* pixels behind all the layers in the list.
* It is the responsibility of the hwcomposer module to make