summaryrefslogtreecommitdiffstats
path: root/gfx/layers/wr/WebRenderImageHost.cpp
blob: 5016bc30f843a8be9321b550f8339019cc832ab7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "WebRenderImageHost.h"

#include <utility>

#include "mozilla/ScopeExit.h"
#include "mozilla/gfx/gfxVars.h"
#include "mozilla/layers/AsyncImagePipelineManager.h"
#include "mozilla/layers/CompositorThread.h"
#include "mozilla/layers/CompositorVsyncScheduler.h"  // for CompositorVsyncScheduler
#include "mozilla/layers/KnowsCompositor.h"
#include "mozilla/layers/RemoteTextureHostWrapper.h"
#include "mozilla/layers/RemoteTextureMap.h"
#include "mozilla/layers/WebRenderBridgeParent.h"
#include "mozilla/layers/WebRenderTextureHost.h"
#include "mozilla/StaticPrefs_webgl.h"
#include "nsAString.h"
#include "nsDebug.h"          // for NS_WARNING, NS_ASSERTION
#include "nsPrintfCString.h"  // for nsPrintfCString
#include "nsString.h"         // for nsAutoCString

#if XP_WIN
#  include "mozilla/layers/GpuProcessD3D11TextureMap.h"
#  include "mozilla/layers/TextureHostWrapperD3D11.h"
#endif

namespace mozilla {

using namespace gfx;

namespace layers {

class ISurfaceAllocator;

WebRenderImageHost::WebRenderImageHost(const TextureInfo& aTextureInfo)
    : CompositableHost(aTextureInfo), mCurrentAsyncImageManager(nullptr) {}

WebRenderImageHost::~WebRenderImageHost() {
  MOZ_ASSERT(mPendingRemoteTextureWrappers.empty());
  MOZ_ASSERT(mWrBridges.empty());
}

void WebRenderImageHost::OnReleased() {
  if (!mPendingRemoteTextureWrappers.empty()) {
    mPendingRemoteTextureWrappers.clear();
  }
}

void WebRenderImageHost::UseTextureHost(
    const nsTArray<TimedTexture>& aTextures) {
  CompositableHost::UseTextureHost(aTextures);
  MOZ_ASSERT(aTextures.Length() >= 1);

  if (!mPendingRemoteTextureWrappers.empty()) {
    mPendingRemoteTextureWrappers.clear();
  }

  if (mCurrentTextureHost &&
      mCurrentTextureHost->AsRemoteTextureHostWrapper()) {
    mCurrentTextureHost = nullptr;
  }

  nsTArray<TimedImage> newImages;

  for (uint32_t i = 0; i < aTextures.Length(); ++i) {
    const TimedTexture& t = aTextures[i];
    MOZ_ASSERT(t.mTexture);
    if (i + 1 < aTextures.Length() && t.mProducerID == mLastProducerID &&
        t.mFrameID < mLastFrameID) {
      // Ignore frames before a frame that we already composited. We don't
      // ever want to display these frames. This could be important if
      // the frame producer adjusts timestamps (e.g. to track the audio clock)
      // and the new frame times are earlier.
      continue;
    }
    TimedImage& img = *newImages.AppendElement();
    img.mTextureHost = t.mTexture;
    img.mTimeStamp = t.mTimeStamp;
    img.mPictureRect = t.mPictureRect;
    img.mFrameID = t.mFrameID;
    img.mProducerID = t.mProducerID;
    img.mTextureHost->SetCropRect(img.mPictureRect);
  }

  SetImages(std::move(newImages));

  if (GetAsyncRef()) {
    for (const auto& it : mWrBridges) {
      RefPtr<WebRenderBridgeParent> wrBridge = it.second->WrBridge();
      if (wrBridge && wrBridge->CompositorScheduler()) {
        wrBridge->CompositorScheduler()->ScheduleComposition(
            wr::RenderReasons::ASYNC_IMAGE);
      }
    }
  }

  // Video producers generally send replacement images with the same frameID but
  // slightly different timestamps in order to sync with the audio clock. This
  // means that any CompositeUntil() call we made in Composite() may no longer
  // guarantee that we'll composite until the next frame is ready. Fix that
  // here.
  if (mLastFrameID >= 0 && !mWrBridges.empty()) {
    for (const auto& img : Images()) {
      bool frameComesAfter =
          img.mFrameID > mLastFrameID || img.mProducerID != mLastProducerID;
      if (frameComesAfter && !img.mTimeStamp.IsNull()) {
        for (const auto& it : mWrBridges) {
          RefPtr<WebRenderBridgeParent> wrBridge = it.second->WrBridge();
          if (wrBridge) {
            wrBridge->AsyncImageManager()->CompositeUntil(
                img.mTimeStamp + TimeDuration::FromMilliseconds(BIAS_TIME_MS));
          }
        }
        break;
      }
    }
  }
}

void WebRenderImageHost::PushPendingRemoteTexture(
    const RemoteTextureId aTextureId, const RemoteTextureOwnerId aOwnerId,
    const base::ProcessId aForPid, const gfx::IntSize aSize,
    const TextureFlags aFlags) {
  // Ensure aOwnerId is the same as RemoteTextureOwnerId of pending
  // RemoteTextures.
  if (!mPendingRemoteTextureWrappers.empty()) {
    auto* wrapper =
        mPendingRemoteTextureWrappers.front()->AsRemoteTextureHostWrapper();
    MOZ_ASSERT(wrapper);
    if (wrapper->mOwnerId != aOwnerId || wrapper->mForPid != aForPid) {
      // Clear when RemoteTextureOwner is different.
      mPendingRemoteTextureWrappers.clear();
      mWaitingReadyCallback = false;
      mWaitForRemoteTextureOwner = true;
    }
  }

  // Check if waiting for remote texture owner is allowed.
  if (!(aFlags & TextureFlags::WAIT_FOR_REMOTE_TEXTURE_OWNER)) {
    mWaitForRemoteTextureOwner = false;
  }

  RefPtr<TextureHost> texture =
      RemoteTextureMap::Get()->GetOrCreateRemoteTextureHostWrapper(
          aTextureId, aOwnerId, aForPid, aSize, aFlags);
  MOZ_ASSERT(texture);
  mPendingRemoteTextureWrappers.push_back(
      CompositableTextureHostRef(texture.get()));
}

void WebRenderImageHost::UseRemoteTexture() {
  if (mPendingRemoteTextureWrappers.empty()) {
    return;
  }

  const bool useReadyCallback = bool(GetAsyncRef());
  CompositableTextureHostRef texture;

  if (useReadyCallback) {
    if (mWaitingReadyCallback) {
      return;
    }
    MOZ_ASSERT(!mWaitingReadyCallback);

    auto readyCallback = [self = RefPtr<WebRenderImageHost>(this)](
                             const RemoteTextureInfo aInfo) {
      RefPtr<nsIRunnable> runnable = NS_NewRunnableFunction(
          "WebRenderImageHost::UseRemoteTexture",
          [self = std::move(self), aInfo]() {
            MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());

            if (self->mPendingRemoteTextureWrappers.empty()) {
              return;
            }

            auto* wrapper = self->mPendingRemoteTextureWrappers.front()
                                ->AsRemoteTextureHostWrapper();
            MOZ_ASSERT(wrapper);
            if (wrapper->mOwnerId != aInfo.mOwnerId ||
                wrapper->mForPid != aInfo.mForPid) {
              // obsoleted callback
              return;
            }

            self->mWaitingReadyCallback = false;
            self->UseRemoteTexture();
          });

      CompositorThread()->Dispatch(runnable.forget());
    };

    // Check which of the pending remote textures is the most recent and ready.
    while (!mPendingRemoteTextureWrappers.empty()) {
      auto* wrapper =
          mPendingRemoteTextureWrappers.front()->AsRemoteTextureHostWrapper();
      if (mWaitForRemoteTextureOwner) {
        RemoteTextureMap::Get()->WaitForRemoteTextureOwner(wrapper);
      }
      mWaitingReadyCallback =
          RemoteTextureMap::Get()->GetRemoteTexture(wrapper, readyCallback);
      MOZ_ASSERT_IF(mWaitingReadyCallback, !wrapper->IsReadyForRendering());
      if (!wrapper->IsReadyForRendering()) {
        break;
      }
      texture = mPendingRemoteTextureWrappers.front();
      mPendingRemoteTextureWrappers.pop_front();
    }
  } else {
    texture = mPendingRemoteTextureWrappers.front();
    auto* wrapper = texture->AsRemoteTextureHostWrapper();
    mPendingRemoteTextureWrappers.pop_front();
    MOZ_ASSERT(mPendingRemoteTextureWrappers.empty());

    if (mWaitForRemoteTextureOwner) {
      RemoteTextureMap::Get()->WaitForRemoteTextureOwner(wrapper);
    }
    mWaitForRemoteTextureOwner = false;
  }

  if (!texture ||
      (GetAsyncRef() &&
       !texture->AsRemoteTextureHostWrapper()->IsReadyForRendering())) {
    return;
  }

  SetCurrentTextureHost(texture);

  if (GetAsyncRef()) {
    for (const auto& it : mWrBridges) {
      RefPtr<WebRenderBridgeParent> wrBridge = it.second->WrBridge();
      if (wrBridge && wrBridge->CompositorScheduler()) {
        wrBridge->CompositorScheduler()->ScheduleComposition(
            wr::RenderReasons::ASYNC_IMAGE);
      }
    }
  }
}

void WebRenderImageHost::CleanupResources() {
  ClearImages();
  SetCurrentTextureHost(nullptr);
}

void WebRenderImageHost::RemoveTextureHost(TextureHost* aTexture) {
  CompositableHost::RemoveTextureHost(aTexture);
  RemoveImagesWithTextureHost(aTexture);
}

TimeStamp WebRenderImageHost::GetCompositionTime() const {
  TimeStamp time;

  MOZ_ASSERT(mCurrentAsyncImageManager);
  if (mCurrentAsyncImageManager) {
    time = mCurrentAsyncImageManager->GetCompositionTime();
  }
  return time;
}

CompositionOpportunityId WebRenderImageHost::GetCompositionOpportunityId()
    const {
  CompositionOpportunityId id;

  MOZ_ASSERT(mCurrentAsyncImageManager);
  if (mCurrentAsyncImageManager) {
    id = mCurrentAsyncImageManager->GetCompositionOpportunityId();
  }
  return id;
}

void WebRenderImageHost::AppendImageCompositeNotification(
    const ImageCompositeNotificationInfo& aInfo) const {
  if (mCurrentAsyncImageManager) {
    mCurrentAsyncImageManager->AppendImageCompositeNotification(aInfo);
  }
}

TextureHost* WebRenderImageHost::GetAsTextureHostForComposite(
    AsyncImagePipelineManager* aAsyncImageManager) {
  MOZ_ASSERT(aAsyncImageManager);

  if (mCurrentTextureHost &&
      mCurrentTextureHost->AsRemoteTextureHostWrapper()) {
    return mCurrentTextureHost;
  }

  mCurrentAsyncImageManager = aAsyncImageManager;
  const auto onExit =
      mozilla::MakeScopeExit([&]() { mCurrentAsyncImageManager = nullptr; });

  int imageIndex = ChooseImageIndex();
  if (imageIndex < 0) {
    SetCurrentTextureHost(nullptr);
    return nullptr;
  }

  if (uint32_t(imageIndex) + 1 < ImagesCount()) {
    mCurrentAsyncImageManager->CompositeUntil(
        GetImage(imageIndex + 1)->mTimeStamp +
        TimeDuration::FromMilliseconds(BIAS_TIME_MS));
  }

  const TimedImage* img = GetImage(imageIndex);

  RefPtr<TextureHost> texture = img->mTextureHost.get();
#if XP_WIN
  // Convert YUV BufferTextureHost to TextureHostWrapperD3D11 if possible
  if (texture->AsBufferTextureHost()) {
    auto identifier = aAsyncImageManager->GetTextureFactoryIdentifier();
    const bool convertToNV12 =
        StaticPrefs::gfx_video_convert_yuv_to_nv12_image_host_win() &&
        identifier.mSupportsD3D11NV12 &&
        KnowsCompositor::SupportsD3D11(identifier) &&
        texture->GetFormat() == gfx::SurfaceFormat::YUV;
    if (convertToNV12) {
      if (!mTextureAllocator) {
        mTextureAllocator = new TextureWrapperD3D11Allocator();
      }
      RefPtr<TextureHost> textureWrapper =
          TextureHostWrapperD3D11::CreateFromBufferTexture(mTextureAllocator,
                                                           texture);
      if (textureWrapper) {
        texture = textureWrapper;
      }
    }
  }
#endif
  SetCurrentTextureHost(texture);

  if (mCurrentAsyncImageManager->GetCompositionTime()) {
    // We are in a composition. Send ImageCompositeNotifications.
    OnFinishRendering(imageIndex, img, mAsyncRef.mProcessId, mAsyncRef.mHandle);
  }

  return mCurrentTextureHost;
}

void WebRenderImageHost::SetCurrentTextureHost(TextureHost* aTexture) {
  if (aTexture == mCurrentTextureHost.get()) {
    return;
  }
  mCurrentTextureHost = aTexture;
}

void WebRenderImageHost::Dump(std::stringstream& aStream, const char* aPrefix,
                              bool aDumpHtml) {
  for (const auto& img : Images()) {
    aStream << aPrefix;
    aStream << (aDumpHtml ? "<ul><li>TextureHost: " : "TextureHost: ");
    DumpTextureHost(aStream, img.mTextureHost);
    aStream << (aDumpHtml ? " </li></ul> " : " ");
  }
}

void WebRenderImageHost::SetWrBridge(const wr::PipelineId& aPipelineId,
                                     WebRenderBridgeParent* aWrBridge) {
  MOZ_ASSERT(aWrBridge);
  MOZ_ASSERT(!mCurrentAsyncImageManager);
#ifdef DEBUG
  const auto it = mWrBridges.find(wr::AsUint64(aPipelineId));
  MOZ_ASSERT(it == mWrBridges.end());
#endif
  RefPtr<WebRenderBridgeParentRef> ref =
      aWrBridge->GetWebRenderBridgeParentRef();
  mWrBridges.emplace(wr::AsUint64(aPipelineId), ref);
}

void WebRenderImageHost::ClearWrBridge(const wr::PipelineId& aPipelineId,
                                       WebRenderBridgeParent* aWrBridge) {
  MOZ_ASSERT(aWrBridge);
  MOZ_ASSERT(!mCurrentAsyncImageManager);

  const auto it = mWrBridges.find(wr::AsUint64(aPipelineId));
  MOZ_ASSERT(it != mWrBridges.end());
  if (it == mWrBridges.end()) {
    gfxCriticalNote << "WrBridge mismatch happened";
    return;
  }
  mWrBridges.erase(it);
  SetCurrentTextureHost(nullptr);
}

}  // namespace layers
}  // namespace mozilla