47e45405d1
Modify SurfaceFlinger to use VirtualDisplaySurface in all cases when a virtual display is used. Add functionality in VirtualDisplaySurface to resize the buffers aquired in the QueueBufferOutput. Add transaction support in SurfaceFlinger for resize. Add the modification of the size in DisplayDevice. Change-Id: Iae7e3556dc06fd18d470adbbd76f7255f6e6dd6b Tested: None
88 lines
3.4 KiB
C++
88 lines
3.4 KiB
C++
/*
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* Copyright 2013 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_SF_DISPLAY_SURFACE_H
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#define ANDROID_SF_DISPLAY_SURFACE_H
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#include <utils/Errors.h>
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#include <utils/RefBase.h>
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#include <utils/StrongPointer.h>
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// ---------------------------------------------------------------------------
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namespace android {
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// ---------------------------------------------------------------------------
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class IGraphicBufferProducer;
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class String8;
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class DisplaySurface : public virtual RefBase {
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public:
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// beginFrame is called at the beginning of the composition loop, before
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// the configuration is known. The DisplaySurface should do anything it
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// needs to do to enable HWComposer to decide how to compose the frame.
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// We pass in mustRecompose so we can keep VirtualDisplaySurface's state
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// machine happy without actually queueing a buffer if nothing has changed.
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virtual status_t beginFrame(bool mustRecompose) = 0;
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// prepareFrame is called after the composition configuration is known but
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// before composition takes place. The DisplaySurface can use the
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// composition type to decide how to manage the flow of buffers between
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// GLES and HWC for this frame.
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enum CompositionType {
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COMPOSITION_UNKNOWN = 0,
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COMPOSITION_GLES = 1,
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COMPOSITION_HWC = 2,
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COMPOSITION_MIXED = COMPOSITION_GLES | COMPOSITION_HWC
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};
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virtual status_t prepareFrame(CompositionType compositionType) = 0;
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// Should be called when composition rendering is complete for a frame (but
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// eglSwapBuffers hasn't necessarily been called). Required by certain
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// older drivers for synchronization.
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// TODO: Remove this when we drop support for HWC 1.0.
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virtual status_t compositionComplete() = 0;
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// Inform the surface that GLES composition is complete for this frame, and
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// the surface should make sure that HWComposer has the correct buffer for
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// this frame. Some implementations may only push a new buffer to
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// HWComposer if GLES composition took place, others need to push a new
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// buffer on every frame.
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//
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// advanceFrame must be followed by a call to onFrameCommitted before
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// advanceFrame may be called again.
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virtual status_t advanceFrame() = 0;
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// onFrameCommitted is called after the frame has been committed to the
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// hardware composer. The surface collects the release fence for this
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// frame's buffer.
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virtual void onFrameCommitted() = 0;
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virtual void dump(String8& result) const = 0;
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virtual void resizeBuffers(const uint32_t w, const uint32_t h) = 0;
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protected:
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DisplaySurface() {}
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virtual ~DisplaySurface() {}
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};
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// ---------------------------------------------------------------------------
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} // namespace android
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// ---------------------------------------------------------------------------
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#endif // ANDROID_SF_DISPLAY_SURFACE_H
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