f10c46ef85
Enables clang and C++11 for libui/libgui/surfaceflinger, and eliminates all compile-time warnings. Change-Id: Ie237fdb5ae44f2bfcddaa884f9c65ec3f08ae50f
88 lines
3.4 KiB
C++
88 lines
3.4 KiB
C++
/*
|
|
* Copyright 2013 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef ANDROID_SF_DISPLAY_SURFACE_H
|
|
#define ANDROID_SF_DISPLAY_SURFACE_H
|
|
|
|
#include <utils/Errors.h>
|
|
#include <utils/RefBase.h>
|
|
#include <utils/StrongPointer.h>
|
|
|
|
// ---------------------------------------------------------------------------
|
|
namespace android {
|
|
// ---------------------------------------------------------------------------
|
|
|
|
class IGraphicBufferProducer;
|
|
class String8;
|
|
|
|
class DisplaySurface : public virtual RefBase {
|
|
public:
|
|
// beginFrame is called at the beginning of the composition loop, before
|
|
// the configuration is known. The DisplaySurface should do anything it
|
|
// needs to do to enable HWComposer to decide how to compose the frame.
|
|
// We pass in mustRecompose so we can keep VirtualDisplaySurface's state
|
|
// machine happy without actually queueing a buffer if nothing has changed.
|
|
virtual status_t beginFrame(bool mustRecompose) = 0;
|
|
|
|
// prepareFrame is called after the composition configuration is known but
|
|
// before composition takes place. The DisplaySurface can use the
|
|
// composition type to decide how to manage the flow of buffers between
|
|
// GLES and HWC for this frame.
|
|
enum CompositionType {
|
|
COMPOSITION_UNKNOWN = 0,
|
|
COMPOSITION_GLES = 1,
|
|
COMPOSITION_HWC = 2,
|
|
COMPOSITION_MIXED = COMPOSITION_GLES | COMPOSITION_HWC
|
|
};
|
|
virtual status_t prepareFrame(CompositionType compositionType) = 0;
|
|
|
|
// Should be called when composition rendering is complete for a frame (but
|
|
// eglSwapBuffers hasn't necessarily been called). Required by certain
|
|
// older drivers for synchronization.
|
|
// TODO: Remove this when we drop support for HWC 1.0.
|
|
virtual status_t compositionComplete() = 0;
|
|
|
|
// Inform the surface that GLES composition is complete for this frame, and
|
|
// the surface should make sure that HWComposer has the correct buffer for
|
|
// this frame. Some implementations may only push a new buffer to
|
|
// HWComposer if GLES composition took place, others need to push a new
|
|
// buffer on every frame.
|
|
//
|
|
// advanceFrame must be followed by a call to onFrameCommitted before
|
|
// advanceFrame may be called again.
|
|
virtual status_t advanceFrame() = 0;
|
|
|
|
// onFrameCommitted is called after the frame has been committed to the
|
|
// hardware composer. The surface collects the release fence for this
|
|
// frame's buffer.
|
|
virtual void onFrameCommitted() = 0;
|
|
|
|
virtual void dumpAsString(String8& result) const = 0;
|
|
|
|
virtual void resizeBuffers(const uint32_t w, const uint32_t h) = 0;
|
|
|
|
protected:
|
|
DisplaySurface() {}
|
|
virtual ~DisplaySurface() {}
|
|
};
|
|
|
|
// ---------------------------------------------------------------------------
|
|
} // namespace android
|
|
// ---------------------------------------------------------------------------
|
|
|
|
#endif // ANDROID_SF_DISPLAY_SURFACE_H
|
|
|