Commit Graph

25 Commits

Author SHA1 Message Date
Mathias Agopian
cbb288bfe8 fix [2068105] implement queueBuffer/lockBuffer/dequeueBuffer properly
Rewrote SurfaceFlinger's buffer management from the ground-up.
The design now support an arbitrary number of buffers per surface, however the current implementation is limited to four. Currently only 2 buffers are used in practice.

The main new feature is to be able to dequeue all buffers at once (very important when there are only two). 

A client can dequeue all buffers until there are none available, it can lock all buffers except the last one that is used for composition. The client will block then, until a new buffer is enqueued.

The current implementation requires that buffers are locked in the same order they are dequeued and enqueued in the same order they are locked. Only one buffer can be locked at a time.

eg. Allowed sequence:   DQ, DQ, LOCK, Q, LOCK, Q
eg. Forbidden sequence: DQ, DQ, LOCK, LOCK, Q, Q
2009-09-07 16:32:45 -07:00
Mathias Agopian
d66a97950e fix a bug that could cause a window to be hidden in some cases.
this would happen is the window is made visible but the client didn't render yet into it. This happens often with SurfaceView.
Instead of filling the window with solid black, SF would simply ignore it which could lead to more disturbing artifacts.

in theory the window manager should not display a window before it has been drawn into, but it does happen occasionnaly.
2009-08-13 19:08:00 -07:00
Mathias Agopian
ccde199f7c Surface::GPU and Surface::HARDWARE are now deprecated; they will be set automatically if needed.
this also ripples into the window manager API by making some constant there deprecated as well.
2009-08-13 18:19:32 -07:00
Mathias Agopian
5221271375 second take, hopefully this time it doesn't break one of the builds: "SurfaceFlinger will now allocate buffers based on the usage specified by the clients. This allows to allocate the right kind of buffer automatically, without having the user to specify anything." 2009-08-11 23:32:29 -07:00
Fred Quintana
b2fd4665e6 Revert "SurfaceFlinger will now allocate buffers based on the usage specified by the clients. This allows to allocate the right kind of buffer automatically, without having the user to specify anything."
This reverts commit 8b76a0ac6fbf07254629ed1ea86af014d5abe050.
2009-08-11 20:49:35 -07:00
Mathias Agopian
df37b62c62 SurfaceFlinger will now allocate buffers based on the usage specified by the clients. This allows to allocate the right kind of buffer automatically, without having the user to specify anything.
This change makes SurfaceHolder.setType(GPU) obsolete (it's now ignored).
Added an API to android_native_window_t to allow extending the functionality without ever breaking binary compatibility. This is used to implement the new set_usage() API. This API needs to be called by software renderers because the default is to use usage flags suitable for h/w.
2009-08-11 16:12:56 -07:00
Mathias Agopian
9fbeb7c6e2 remove unused and confusing comment 2009-08-07 19:08:18 -07:00
Mathias Agopian
759fdb2ef7 free gralloc buffers as soon as possible (when a surface is not visible any longer), client who have the buffers still mapped won't crash, btu may see garbage data 2009-07-02 18:45:29 -07:00
Mathias Agopian
1fed11c86a checkpoint. bring back video/camera 2009-06-23 18:08:22 -07:00
Mathias Agopian
f9d932774e fix a memory corruption where a SF Client could be used after it's been destroyed 2009-06-19 17:00:27 -07:00
Mathias Agopian
310f8da0c3 merge master to master_gl 2009-05-22 02:16:08 -07:00
Mathias Agopian
0926f50664 update surfaceflinger, libui and libagl to the new gralloc api
- Currently the lock/unlock path is naive and is done for each drawing operation (glDrawElements and glDrawArrays). this should be improved eventually.
- factor all the lock/unlock code in SurfaceBuffer.
- fixed "showupdate" so it works even when we don't have preserving eglSwapBuffers().
- improved the situation with the dirty-region and fixed a problem that caused GL apps to not update.
- make use of LightRefBase() where needed, instead of duplicating its implementation
- add LightRefBase::getStrongCount()
- renamed EGLNativeWindowSurface.cpp to FramebufferNativeWindow.cpp

- disabled copybits test, since it clashes with the new gralloc api

- Camera/Video will be fixed later when we rework the overlay apis
2009-05-04 14:17:04 -07:00
Mathias Agopian
7be3e5d2d8 Merge commit 'goog/master' into merge_master
Conflicts:
	libs/surfaceflinger/Layer.cpp
	libs/surfaceflinger/SurfaceFlinger.cpp
	opengl/libagl/egl.cpp
	opengl/libs/EGL/egl.cpp
	opengl/libs/GLES_CM/gl.cpp
	opengl/libs/GLES_CM/gl_api.in
	opengl/libs/gl_entries.in
	opengl/libs/tools/glapigen
2009-04-30 14:43:18 -07:00
Mathias Agopian
2b42fa7fdd fix 1803886 android15 Translucent GLSurfaceView demo does not display properly 2009-04-27 18:50:06 -07:00
Mathias Agopian
550b79f449 get rid of an old hack to work around a bug around glDeleteTextures() in the adreno drivers 2009-04-24 16:31:11 -07:00
Mathias Agopian
0aa758d64a Surfaces are now destroyed properly in SurfaceFlinger.
First, the window manager tells us when a surface is no longer needed. At this point, several things happen:
- the surface is removed from the active/visible list
- it is added to a purgatory list, where it waits for all clients to release their reference
- it destroys all data/state that can be spared

Later, when all clients are done, the remains of the Surface are disposed off: it is removed from the purgatory and destroyed.
In particular its gralloc buffers are destroyed at that point (when we're sure nobody is using them anymore).
2009-04-24 16:30:38 -07:00
Mathias Agopian
9a11206fe7 more Surface lifetime management
Surfaces are now destroyed once all references from the clients are gone, but they go through a partial destruction as soon as the window manager requests it.
This last part is still buggy. see comments in SurfaceFlinger::destroySurface()
2009-04-24 15:00:41 -07:00
Mathias Agopian
076b1cc3a9 Integrate from //sandbox/mathias/donut/...@145728
SurfaceFlinger rework for new EGL driver model support.
2009-04-10 14:24:30 -07:00
The Android Open Source Project
edbf3b6af7 auto import from //depot/cupcake/@135843 2009-03-03 19:31:44 -08:00
The Android Open Source Project
d5193d9394 auto import from //depot/cupcake/@135843 2009-03-03 18:28:45 -08:00
The Android Open Source Project
ac65e0b172 auto import from //branches/cupcake/...@131421 2009-02-13 12:57:50 -08:00
The Android Open Source Project
a6938bab1f auto import from //branches/cupcake/...@130745 2009-02-10 15:44:00 -08:00
The Android Open Source Project
276293246e auto import from //branches/cupcake/...@125939 2009-01-09 17:51:23 -08:00
The Android Open Source Project
e09fd9e819 Code drop from //branches/cupcake/...@124589 2008-12-17 18:05:43 -08:00
The Android Open Source Project
7c1b96a165 Initial Contribution 2008-10-21 07:00:00 -07:00