595264f1af
this is the first step of a series of improvements to
BufferQueue. A few things happen in this change:
- setSynchronousMode() goes away as well as the SynchronousModeAllowed flag
- BufferQueue now defaults to (what used to be) synchronous mode
- a new "controlled by app" flag is passed when creating consumers and producers
those flags are used to put the BufferQueue in a mode where it
will never block if both flags are set. This is achieved by:
- returning an error from dequeueBuffer() if it would block
- making sure a buffer is always available by replacing
the previous buffer with the new one in queueBuffer()
(note: this is similar to what asynchrnous mode used to be)
Note: in this change EGL's swap-interval 0 is broken; this will be
fixed in another change.
Change-Id: I691f9507d6e2e158287e3039f2a79a4d4434211d
47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_SURFACE_TEXTURE_LAYER_H
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#define ANDROID_SURFACE_TEXTURE_LAYER_H
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#include <stdlib.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <utils/Errors.h>
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#include <gui/BufferQueue.h>
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namespace android {
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// ---------------------------------------------------------------------------
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class Layer;
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class SurfaceFlinger;
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/*
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* This is a thin wrapper around BufferQueue, used by the Layer class.
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*/
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class SurfaceTextureLayer : public BufferQueue {
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sp<SurfaceFlinger> flinger;
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public:
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SurfaceTextureLayer(const sp<SurfaceFlinger>& flinger);
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virtual ~SurfaceTextureLayer();
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};
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// ---------------------------------------------------------------------------
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}; // namespace android
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#endif // ANDROID_SURFACE_TEXTURE_LAYER_H
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