mirror of
https://repo.dactyloidae.xyz/Dactyloidae/UXP.git
synced 2026-10-20 22:27:31 +09:00
import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo
This commit is contained in:
Roy Tam
commit
dcd9973243
150858 changed files with 23884658 additions and 0 deletions
250
widget/gonk/libdisplay/VirtualDisplaySurface.h
Normal file
250
widget/gonk/libdisplay/VirtualDisplaySurface.h
Normal file
|
|
@ -0,0 +1,250 @@
|
|||
/*
|
||||
* 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_VIRTUAL_DISPLAY_SURFACE_H
|
||||
#define ANDROID_SF_VIRTUAL_DISPLAY_SURFACE_H
|
||||
|
||||
#include <gui/IGraphicBufferProducer.h>
|
||||
|
||||
#include "DisplaySurface.h"
|
||||
|
||||
// ---------------------------------------------------------------------------
|
||||
namespace android {
|
||||
// ---------------------------------------------------------------------------
|
||||
|
||||
class HWComposer;
|
||||
class IProducerListener;
|
||||
|
||||
/* This DisplaySurface implementation supports virtual displays, where GLES
|
||||
* and/or HWC compose into a buffer that is then passed to an arbitrary
|
||||
* consumer (the sink) running in another process.
|
||||
*
|
||||
* The simplest case is when the virtual display will never use the h/w
|
||||
* composer -- either the h/w composer doesn't support writing to buffers, or
|
||||
* there are more virtual displays than it supports simultaneously. In this
|
||||
* case, the GLES driver works directly with the output buffer queue, and
|
||||
* calls to the VirtualDisplay from SurfaceFlinger and DisplayHardware do
|
||||
* nothing.
|
||||
*
|
||||
* If h/w composer might be used, then each frame will fall into one of three
|
||||
* configurations: GLES-only, HWC-only, and MIXED composition. In all of these,
|
||||
* we must provide a FB target buffer and output buffer for the HWC set() call.
|
||||
*
|
||||
* In GLES-only composition, the GLES driver is given a buffer from the sink to
|
||||
* render into. When the GLES driver queues the buffer to the
|
||||
* VirtualDisplaySurface, the VirtualDisplaySurface holds onto it instead of
|
||||
* immediately queueing it to the sink. The buffer is used as both the FB
|
||||
* target and output buffer for HWC, though on these frames the HWC doesn't
|
||||
* do any work for this display and doesn't write to the output buffer. After
|
||||
* composition is complete, the buffer is queued to the sink.
|
||||
*
|
||||
* In HWC-only composition, the VirtualDisplaySurface dequeues a buffer from
|
||||
* the sink and passes it to HWC as both the FB target buffer and output
|
||||
* buffer. The HWC doesn't need to read from the FB target buffer, but does
|
||||
* write to the output buffer. After composition is complete, the buffer is
|
||||
* queued to the sink.
|
||||
*
|
||||
* On MIXED frames, things become more complicated, since some h/w composer
|
||||
* implementations can't read from and write to the same buffer. This class has
|
||||
* an internal BufferQueue that it uses as a scratch buffer pool. The GLES
|
||||
* driver is given a scratch buffer to render into. When it finishes rendering,
|
||||
* the buffer is queued and then immediately acquired by the
|
||||
* VirtualDisplaySurface. The scratch buffer is then used as the FB target
|
||||
* buffer for HWC, and a separate buffer is dequeued from the sink and used as
|
||||
* the HWC output buffer. When HWC composition is complete, the scratch buffer
|
||||
* is released and the output buffer is queued to the sink.
|
||||
*/
|
||||
class VirtualDisplaySurface : public DisplaySurface,
|
||||
public BnGraphicBufferProducer {
|
||||
public:
|
||||
VirtualDisplaySurface(int32_t dispId,
|
||||
const sp<IGraphicBufferProducer>& sink,
|
||||
const sp<IGraphicBufferProducer>& bqProducer,
|
||||
const sp<StreamConsumer>& bqConsumer,
|
||||
const String8& name);
|
||||
|
||||
//
|
||||
// DisplaySurface interface
|
||||
//
|
||||
virtual status_t beginFrame(bool mustRecompose);
|
||||
virtual status_t prepareFrame(CompositionType compositionType);
|
||||
virtual status_t compositionComplete();
|
||||
virtual status_t advanceFrame();
|
||||
virtual void onFrameCommitted();
|
||||
virtual void resizeBuffers(const uint32_t w, const uint32_t h);
|
||||
|
||||
virtual status_t setReleaseFenceFd(int fenceFd) { return INVALID_OPERATION; }
|
||||
virtual int GetPrevDispAcquireFd() { return -1; };
|
||||
|
||||
private:
|
||||
enum Source {SOURCE_SINK = 0, SOURCE_SCRATCH = 1};
|
||||
|
||||
virtual ~VirtualDisplaySurface();
|
||||
|
||||
//
|
||||
// IGraphicBufferProducer interface, used by the GLES driver.
|
||||
//
|
||||
virtual status_t requestBuffer(int pslot, sp<GraphicBuffer>* outBuf);
|
||||
virtual status_t setBufferCount(int bufferCount);
|
||||
virtual status_t dequeueBuffer(int* pslot, sp<Fence>* fence, bool async,
|
||||
uint32_t w, uint32_t h, uint32_t format, uint32_t usage);
|
||||
virtual status_t detachBuffer(int slot);
|
||||
virtual status_t detachNextBuffer(sp<GraphicBuffer>* outBuffer,
|
||||
sp<Fence>* outFence);
|
||||
virtual status_t attachBuffer(int* slot, const sp<GraphicBuffer>& buffer);
|
||||
virtual status_t queueBuffer(int pslot,
|
||||
const QueueBufferInput& input, QueueBufferOutput* output);
|
||||
virtual void cancelBuffer(int pslot, const sp<Fence>& fence);
|
||||
virtual int query(int what, int* value);
|
||||
#if ANDROID_VERSION >= 21
|
||||
virtual status_t connect(const sp<IProducerListener>& listener,
|
||||
int api, bool producerControlledByApp, QueueBufferOutput* output);
|
||||
#else
|
||||
virtual status_t connect(const sp<IBinder>& token,
|
||||
int api, bool producerControlledByApp, QueueBufferOutput* output);
|
||||
#endif
|
||||
virtual status_t disconnect(int api);
|
||||
#if ANDROID_VERSION >= 21
|
||||
virtual status_t setSidebandStream(const sp<NativeHandle>& stream);
|
||||
#endif
|
||||
virtual void allocateBuffers(bool async, uint32_t width, uint32_t height,
|
||||
uint32_t format, uint32_t usage);
|
||||
|
||||
//
|
||||
// Utility methods
|
||||
//
|
||||
static Source fbSourceForCompositionType(CompositionType type);
|
||||
status_t dequeueBuffer(Source source, uint32_t format, uint32_t usage,
|
||||
int* sslot, sp<Fence>* fence);
|
||||
void updateQueueBufferOutput(const QueueBufferOutput& qbo);
|
||||
void resetPerFrameState();
|
||||
status_t refreshOutputBuffer();
|
||||
|
||||
// Both the sink and scratch buffer pools have their own set of slots
|
||||
// ("source slots", or "sslot"). We have to merge these into the single
|
||||
// set of slots used by the GLES producer ("producer slots" or "pslot") and
|
||||
// internally in the VirtualDisplaySurface. To minimize the number of times
|
||||
// a producer slot switches which source it comes from, we map source slot
|
||||
// numbers to producer slot numbers differently for each source.
|
||||
static int mapSource2ProducerSlot(Source source, int sslot);
|
||||
static int mapProducer2SourceSlot(Source source, int pslot);
|
||||
|
||||
//
|
||||
// Immutable after construction
|
||||
//
|
||||
const int32_t mDisplayId;
|
||||
const String8 mDisplayName;
|
||||
sp<IGraphicBufferProducer> mSource[2]; // indexed by SOURCE_*
|
||||
uint32_t mDefaultOutputFormat;
|
||||
|
||||
//
|
||||
// Inter-frame state
|
||||
//
|
||||
|
||||
// To avoid buffer reallocations, we track the buffer usage and format
|
||||
// we used on the previous frame and use it again on the new frame. If
|
||||
// the composition type changes or the GLES driver starts requesting
|
||||
// different usage/format, we'll get a new buffer.
|
||||
uint32_t mOutputFormat;
|
||||
uint32_t mOutputUsage;
|
||||
|
||||
// Since we present a single producer interface to the GLES driver, but
|
||||
// are internally muxing between the sink and scratch producers, we have
|
||||
// to keep track of which source last returned each producer slot from
|
||||
// dequeueBuffer. Each bit in mProducerSlotSource corresponds to a producer
|
||||
// slot. Both mProducerSlotSource and mProducerBuffers are indexed by a
|
||||
// "producer slot"; see the mapSlot*() functions.
|
||||
uint64_t mProducerSlotSource;
|
||||
sp<GraphicBuffer> mProducerBuffers[BufferQueue::NUM_BUFFER_SLOTS];
|
||||
|
||||
// The QueueBufferOutput with the latest info from the sink, and with the
|
||||
// transform hint cleared. Since we defer queueBuffer from the GLES driver
|
||||
// to the sink, we have to return the previous version.
|
||||
QueueBufferOutput mQueueBufferOutput;
|
||||
|
||||
// Details of the current sink buffer. These become valid when a buffer is
|
||||
// dequeued from the sink, and are used when queueing the buffer.
|
||||
uint32_t mSinkBufferWidth, mSinkBufferHeight;
|
||||
|
||||
//
|
||||
// Intra-frame state
|
||||
//
|
||||
|
||||
// Composition type and GLES buffer source for the current frame.
|
||||
// Valid after prepareFrame(), cleared in onFrameCommitted.
|
||||
CompositionType mCompositionType;
|
||||
|
||||
// mFbFence is the fence HWC should wait for before reading the framebuffer
|
||||
// target buffer.
|
||||
sp<Fence> mFbFence;
|
||||
|
||||
// mOutputFence is the fence HWC should wait for before writing to the
|
||||
// output buffer.
|
||||
sp<Fence> mOutputFence;
|
||||
|
||||
// Producer slot numbers for the buffers to use for HWC framebuffer target
|
||||
// and output.
|
||||
int mFbProducerSlot;
|
||||
int mOutputProducerSlot;
|
||||
|
||||
// Debug only -- track the sequence of events in each frame so we can make
|
||||
// sure they happen in the order we expect. This class implicitly models
|
||||
// a state machine; this enum/variable makes it explicit.
|
||||
//
|
||||
// +-----------+-------------------+-------------+
|
||||
// | State | Event || Next State |
|
||||
// +-----------+-------------------+-------------+
|
||||
// | IDLE | beginFrame || BEGUN |
|
||||
// | BEGUN | prepareFrame || PREPARED |
|
||||
// | PREPARED | dequeueBuffer [1] || GLES |
|
||||
// | PREPARED | advanceFrame [2] || HWC |
|
||||
// | GLES | queueBuffer || GLES_DONE |
|
||||
// | GLES_DONE | advanceFrame || HWC |
|
||||
// | HWC | onFrameCommitted || IDLE |
|
||||
// +-----------+-------------------++------------+
|
||||
// [1] COMPOSITION_GLES and COMPOSITION_MIXED frames.
|
||||
// [2] COMPOSITION_HWC frames.
|
||||
//
|
||||
enum DbgState {
|
||||
// no buffer dequeued, don't know anything about the next frame
|
||||
DBG_STATE_IDLE,
|
||||
// output buffer dequeued, framebuffer source not yet known
|
||||
DBG_STATE_BEGUN,
|
||||
// output buffer dequeued, framebuffer source known but not provided
|
||||
// to GLES yet.
|
||||
DBG_STATE_PREPARED,
|
||||
// GLES driver has a buffer dequeued
|
||||
DBG_STATE_GLES,
|
||||
// GLES driver has queued the buffer, we haven't sent it to HWC yet
|
||||
DBG_STATE_GLES_DONE,
|
||||
// HWC has the buffer for this frame
|
||||
DBG_STATE_HWC,
|
||||
};
|
||||
DbgState mDbgState;
|
||||
CompositionType mDbgLastCompositionType;
|
||||
|
||||
const char* dbgStateStr() const;
|
||||
static const char* dbgSourceStr(Source s);
|
||||
|
||||
bool mMustRecompose;
|
||||
};
|
||||
|
||||
// ---------------------------------------------------------------------------
|
||||
} // namespace android
|
||||
// ---------------------------------------------------------------------------
|
||||
|
||||
#endif // ANDROID_SF_VIRTUAL_DISPLAY_SURFACE_H
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue