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| 1 /* | |
| 2 * Copyright (C) 2012 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * | |
| 8 * 1. Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 * notice, this list of conditions and the following disclaimer in the | |
| 12 * documentation and/or other materials provided with the distribution. | |
| 13 * | |
| 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY | |
| 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
| 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
| 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY | |
| 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
| 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
| 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
| 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 */ | |
| 25 | |
| 26 #include "config.h" | |
| 27 | |
| 28 #include "core/platform/graphics/chromium/Canvas2DLayerBridge.h" | |
| 29 | |
| 30 #include "GrContext.h" | |
| 31 #include "SkDevice.h" | |
| 32 #include "SkSurface.h" | |
| 33 #include "core/platform/graphics/GraphicsContext3D.h" | |
| 34 #include "core/platform/graphics/GraphicsLayer.h" | |
| 35 #include "core/platform/graphics/chromium/Canvas2DLayerManager.h" | |
| 36 #include "core/platform/graphics/gpu/SharedGraphicsContext3D.h" | |
| 37 #include "platform/TraceEvent.h" | |
| 38 #include "public/platform/Platform.h" | |
| 39 #include "public/platform/WebCompositorSupport.h" | |
| 40 #include "public/platform/WebGraphicsContext3D.h" | |
| 41 | |
| 42 using blink::WebExternalTextureLayer; | |
| 43 using blink::WebGraphicsContext3D; | |
| 44 | |
| 45 namespace WebCore { | |
| 46 | |
| 47 void Canvas2DLayerBridgePtr::clear() | |
| 48 { | |
| 49 if (m_ptr) { | |
| 50 m_ptr->destroy(); | |
| 51 m_ptr.clear(); | |
| 52 } | |
| 53 } | |
| 54 | |
| 55 Canvas2DLayerBridgePtr& Canvas2DLayerBridgePtr::operator=(const PassRefPtr<Canva
s2DLayerBridge>& other) | |
| 56 { | |
| 57 clear(); | |
| 58 m_ptr = other; | |
| 59 return *this; | |
| 60 } | |
| 61 | |
| 62 static SkSurface* createSurface(GraphicsContext3D* context3D, const IntSize& siz
e, int msaaSampleCount) | |
| 63 { | |
| 64 ASSERT(!context3D->webContext()->isContextLost()); | |
| 65 GrContext* gr = context3D->grContext(); | |
| 66 if (!gr) | |
| 67 return 0; | |
| 68 gr->resetContext(); | |
| 69 SkImageInfo info; | |
| 70 info.fWidth = size.width(); | |
| 71 info.fHeight = size.height(); | |
| 72 info.fColorType = kPMColor_SkColorType; | |
| 73 info.fAlphaType = kPremul_SkAlphaType; | |
| 74 return SkSurface::NewRenderTarget(gr, info, msaaSampleCount); | |
| 75 } | |
| 76 | |
| 77 PassRefPtr<Canvas2DLayerBridge> Canvas2DLayerBridge::create(PassRefPtr<GraphicsC
ontext3D> context, const IntSize& size, OpacityMode opacityMode, int msaaSampleC
ount) | |
| 78 { | |
| 79 TRACE_EVENT_INSTANT0("test_gpu", "Canvas2DLayerBridgeCreation"); | |
| 80 SkAutoTUnref<SkSurface> surface(createSurface(context.get(), size, msaaSampl
eCount)); | |
| 81 if (!surface.get()) { | |
| 82 return PassRefPtr<Canvas2DLayerBridge>(); | |
| 83 } | |
| 84 RefPtr<SkDeferredCanvas> canvas = adoptRef(SkDeferredCanvas::Create(surface.
get())); | |
| 85 RefPtr<Canvas2DLayerBridge> layerBridge = adoptRef(new Canvas2DLayerBridge(c
ontext, canvas.release(), msaaSampleCount, opacityMode)); | |
| 86 return layerBridge.release(); | |
| 87 } | |
| 88 | |
| 89 Canvas2DLayerBridge::Canvas2DLayerBridge(PassRefPtr<GraphicsContext3D> context,
PassRefPtr<SkDeferredCanvas> canvas, int msaaSampleCount, OpacityMode opacityMod
e) | |
| 90 : m_canvas(canvas) | |
| 91 , m_context(context) | |
| 92 , m_msaaSampleCount(msaaSampleCount) | |
| 93 , m_bytesAllocated(0) | |
| 94 , m_didRecordDrawCommand(false) | |
| 95 , m_surfaceIsValid(true) | |
| 96 , m_framesPending(0) | |
| 97 , m_destructionInProgress(false) | |
| 98 , m_rateLimitingEnabled(false) | |
| 99 , m_next(0) | |
| 100 , m_prev(0) | |
| 101 , m_lastImageId(0) | |
| 102 { | |
| 103 ASSERT(m_canvas); | |
| 104 // Used by browser tests to detect the use of a Canvas2DLayerBridge. | |
| 105 TRACE_EVENT_INSTANT0("test_gpu", "Canvas2DLayerBridgeCreation"); | |
| 106 m_layer = adoptPtr(blink::Platform::current()->compositorSupport()->createEx
ternalTextureLayer(this)); | |
| 107 m_layer->setOpaque(opacityMode == Opaque); | |
| 108 m_layer->setBlendBackgroundColor(opacityMode != Opaque); | |
| 109 GraphicsLayer::registerContentsLayer(m_layer->layer()); | |
| 110 m_layer->setRateLimitContext(m_rateLimitingEnabled); | |
| 111 m_canvas->setNotificationClient(this); | |
| 112 } | |
| 113 | |
| 114 Canvas2DLayerBridge::~Canvas2DLayerBridge() | |
| 115 { | |
| 116 ASSERT(m_destructionInProgress); | |
| 117 m_layer.clear(); | |
| 118 Vector<MailboxInfo>::iterator mailboxInfo; | |
| 119 for (mailboxInfo = m_mailboxes.begin(); mailboxInfo < m_mailboxes.end(); mai
lboxInfo++) { | |
| 120 ASSERT(mailboxInfo->m_status != MailboxInUse); | |
| 121 if (mailboxInfo->m_status == MailboxReleased) { | |
| 122 if (mailboxInfo->m_mailbox.syncPoint) { | |
| 123 context()->waitSyncPoint(mailboxInfo->m_mailbox.syncPoint); | |
| 124 mailboxInfo->m_mailbox.syncPoint = 0; | |
| 125 } | |
| 126 // Invalidate texture state in case the compositor altered it since
the copy-on-write. | |
| 127 mailboxInfo->m_image->getTexture()->invalidateCachedState(); | |
| 128 } | |
| 129 } | |
| 130 m_mailboxes.clear(); | |
| 131 } | |
| 132 | |
| 133 void Canvas2DLayerBridge::destroy() | |
| 134 { | |
| 135 ASSERT(!m_destructionInProgress); | |
| 136 m_destructionInProgress = true; | |
| 137 GraphicsLayer::unregisterContentsLayer(m_layer->layer()); | |
| 138 m_canvas->setNotificationClient(0); | |
| 139 m_layer->clearTexture(); | |
| 140 Canvas2DLayerManager::get().layerToBeDestroyed(this); | |
| 141 // Orphaning the layer is required to trigger the recration of a new layer | |
| 142 // in the case where destruction is caused by a canvas resize. Test: | |
| 143 // virtual/gpu/fast/canvas/canvas-resize-after-paint-without-layout.html | |
| 144 m_layer->layer()->removeFromParent(); | |
| 145 } | |
| 146 | |
| 147 void Canvas2DLayerBridge::limitPendingFrames() | |
| 148 { | |
| 149 ASSERT(!m_destructionInProgress); | |
| 150 if (m_didRecordDrawCommand) { | |
| 151 m_framesPending++; | |
| 152 m_didRecordDrawCommand = false; | |
| 153 if (m_framesPending > 1) { | |
| 154 // Turn on the rate limiter if this layer tends to accumulate a | |
| 155 // non-discardable multi-frame backlog of draw commands. | |
| 156 setRateLimitingEnabled(true); | |
| 157 } | |
| 158 if (m_rateLimitingEnabled) { | |
| 159 flush(); | |
| 160 } | |
| 161 } | |
| 162 } | |
| 163 | |
| 164 void Canvas2DLayerBridge::prepareForDraw() | |
| 165 { | |
| 166 ASSERT(!m_destructionInProgress); | |
| 167 ASSERT(m_layer); | |
| 168 if (!isValid()) { | |
| 169 if (m_canvas) { | |
| 170 // drop pending commands because there is no surface to draw to | |
| 171 m_canvas->silentFlush(); | |
| 172 } | |
| 173 return; | |
| 174 } | |
| 175 m_context->makeContextCurrent(); | |
| 176 } | |
| 177 | |
| 178 void Canvas2DLayerBridge::storageAllocatedForRecordingChanged(size_t bytesAlloca
ted) | |
| 179 { | |
| 180 ASSERT(!m_destructionInProgress); | |
| 181 intptr_t delta = (intptr_t)bytesAllocated - (intptr_t)m_bytesAllocated; | |
| 182 m_bytesAllocated = bytesAllocated; | |
| 183 Canvas2DLayerManager::get().layerAllocatedStorageChanged(this, delta); | |
| 184 } | |
| 185 | |
| 186 size_t Canvas2DLayerBridge::storageAllocatedForRecording() | |
| 187 { | |
| 188 ASSERT(!m_destructionInProgress); | |
| 189 return m_canvas->storageAllocatedForRecording(); | |
| 190 } | |
| 191 | |
| 192 void Canvas2DLayerBridge::flushedDrawCommands() | |
| 193 { | |
| 194 ASSERT(!m_destructionInProgress); | |
| 195 storageAllocatedForRecordingChanged(storageAllocatedForRecording()); | |
| 196 m_framesPending = 0; | |
| 197 } | |
| 198 | |
| 199 void Canvas2DLayerBridge::skippedPendingDrawCommands() | |
| 200 { | |
| 201 ASSERT(!m_destructionInProgress); | |
| 202 // Stop triggering the rate limiter if SkDeferredCanvas is detecting | |
| 203 // and optimizing overdraw. | |
| 204 setRateLimitingEnabled(false); | |
| 205 flushedDrawCommands(); | |
| 206 } | |
| 207 | |
| 208 void Canvas2DLayerBridge::setRateLimitingEnabled(bool enabled) | |
| 209 { | |
| 210 ASSERT(!m_destructionInProgress || !enabled); | |
| 211 if (m_rateLimitingEnabled != enabled) { | |
| 212 m_rateLimitingEnabled = enabled; | |
| 213 m_layer->setRateLimitContext(m_rateLimitingEnabled); | |
| 214 } | |
| 215 } | |
| 216 | |
| 217 size_t Canvas2DLayerBridge::freeMemoryIfPossible(size_t bytesToFree) | |
| 218 { | |
| 219 ASSERT(!m_destructionInProgress); | |
| 220 size_t bytesFreed = m_canvas->freeMemoryIfPossible(bytesToFree); | |
| 221 if (bytesFreed) | |
| 222 Canvas2DLayerManager::get().layerAllocatedStorageChanged(this, -((intptr
_t)bytesFreed)); | |
| 223 m_bytesAllocated -= bytesFreed; | |
| 224 return bytesFreed; | |
| 225 } | |
| 226 | |
| 227 void Canvas2DLayerBridge::flush() | |
| 228 { | |
| 229 ASSERT(!m_destructionInProgress); | |
| 230 if (m_canvas->hasPendingCommands()) { | |
| 231 TRACE_EVENT0("cc", "Canvas2DLayerBridge::flush"); | |
| 232 m_canvas->flush(); | |
| 233 } | |
| 234 } | |
| 235 | |
| 236 WebGraphicsContext3D* Canvas2DLayerBridge::context() | |
| 237 { | |
| 238 // Check on m_layer is necessary because context() may be called during | |
| 239 // the destruction of m_layer | |
| 240 if (m_layer) { | |
| 241 isValid(); // To ensure rate limiter is disabled if context is lost. | |
| 242 } | |
| 243 return m_context->webContext(); | |
| 244 } | |
| 245 | |
| 246 bool Canvas2DLayerBridge::isValid() | |
| 247 { | |
| 248 ASSERT(m_layer); | |
| 249 if (m_destructionInProgress) | |
| 250 return false; | |
| 251 if (m_context->webContext()->isContextLost() || !m_surfaceIsValid) { | |
| 252 // Attempt to recover. | |
| 253 m_layer->clearTexture(); | |
| 254 m_mailboxes.clear(); | |
| 255 RefPtr<GraphicsContext3D> sharedContext = SharedGraphicsContext3D::get()
; | |
| 256 if (!sharedContext || sharedContext->webContext()->isContextLost()) { | |
| 257 m_surfaceIsValid = false; | |
| 258 } else { | |
| 259 m_context = sharedContext; | |
| 260 IntSize size(m_canvas->getTopDevice()->width(), m_canvas->getTopDevi
ce()->height()); | |
| 261 SkAutoTUnref<SkSurface> surface(createSurface(m_context.get(), size,
m_msaaSampleCount)); | |
| 262 if (surface.get()) { | |
| 263 m_canvas->setSurface(surface.get()); | |
| 264 m_surfaceIsValid = true; | |
| 265 // FIXME: draw sad canvas picture into new buffer crbug.com/2438
42 | |
| 266 } else { | |
| 267 // Surface allocation failed. Set m_surfaceIsValid to false to | |
| 268 // trigger subsequent retry. | |
| 269 m_surfaceIsValid = false; | |
| 270 } | |
| 271 } | |
| 272 } | |
| 273 if (!m_surfaceIsValid) | |
| 274 setRateLimitingEnabled(false); | |
| 275 return m_surfaceIsValid; | |
| 276 } | |
| 277 | |
| 278 bool Canvas2DLayerBridge::prepareMailbox(blink::WebExternalTextureMailbox* outMa
ilbox, blink::WebExternalBitmap* bitmap) | |
| 279 { | |
| 280 if (bitmap) { | |
| 281 // Using accelerated 2d canvas with software renderer, which | |
| 282 // should only happen in tests that use fake graphics contexts. | |
| 283 // In this case, we do not care about producing any results for | |
| 284 // compositing. | |
| 285 m_canvas->silentFlush(); | |
| 286 return false; | |
| 287 } | |
| 288 if (!isValid()) | |
| 289 return false; | |
| 290 // Release to skia textures that were previouosly released by the | |
| 291 // compositor. We do this before acquiring the next snapshot in | |
| 292 // order to cap maximum gpu memory consumption. | |
| 293 m_context->makeContextCurrent(); | |
| 294 flush(); | |
| 295 Vector<MailboxInfo>::iterator mailboxInfo; | |
| 296 for (mailboxInfo = m_mailboxes.begin(); mailboxInfo < m_mailboxes.end(); mai
lboxInfo++) { | |
| 297 if (mailboxInfo->m_status == MailboxReleased) { | |
| 298 if (mailboxInfo->m_mailbox.syncPoint) { | |
| 299 context()->waitSyncPoint(mailboxInfo->m_mailbox.syncPoint); | |
| 300 mailboxInfo->m_mailbox.syncPoint = 0; | |
| 301 } | |
| 302 // Invalidate texture state in case the compositor altered it since
the copy-on-write. | |
| 303 mailboxInfo->m_image->getTexture()->invalidateCachedState(); | |
| 304 mailboxInfo->m_image.reset(0); | |
| 305 mailboxInfo->m_status = MailboxAvailable; | |
| 306 } | |
| 307 } | |
| 308 SkAutoTUnref<SkImage> image(m_canvas->newImageSnapshot()); | |
| 309 // Early exit if canvas was not drawn to since last prepareMailbox | |
| 310 if (image->uniqueID() == m_lastImageId) | |
| 311 return false; | |
| 312 m_lastImageId = image->uniqueID(); | |
| 313 | |
| 314 mailboxInfo = createMailboxInfo(); | |
| 315 mailboxInfo->m_status = MailboxInUse; | |
| 316 mailboxInfo->m_image.swap(&image); | |
| 317 // Because of texture sharing with the compositor, we must invalidate | |
| 318 // the state cached in skia so that the deferred copy on write | |
| 319 // in SkSurface_Gpu does not make any false assumptions. | |
| 320 mailboxInfo->m_image->getTexture()->invalidateCachedState(); | |
| 321 | |
| 322 ASSERT(mailboxInfo->m_mailbox.syncPoint == 0); | |
| 323 ASSERT(mailboxInfo->m_image.get()); | |
| 324 ASSERT(mailboxInfo->m_image->getTexture()); | |
| 325 | |
| 326 m_context->bindTexture(GraphicsContext3D::TEXTURE_2D, mailboxInfo->m_image->
getTexture()->getTextureHandle()); | |
| 327 m_context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::T
EXTURE_MAG_FILTER, GraphicsContext3D::LINEAR); | |
| 328 m_context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::T
EXTURE_MIN_FILTER, GraphicsContext3D::LINEAR); | |
| 329 m_context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::T
EXTURE_WRAP_S, GraphicsContext3D::CLAMP_TO_EDGE); | |
| 330 m_context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::T
EXTURE_WRAP_T, GraphicsContext3D::CLAMP_TO_EDGE); | |
| 331 context()->produceTextureCHROMIUM(GraphicsContext3D::TEXTURE_2D, mailboxInfo
->m_mailbox.name); | |
| 332 context()->flush(); | |
| 333 mailboxInfo->m_mailbox.syncPoint = context()->insertSyncPoint(); | |
| 334 m_context->bindTexture(GraphicsContext3D::TEXTURE_2D, 0); | |
| 335 // Because we are changing the texture binding without going through skia, | |
| 336 // we must dirty the context. | |
| 337 m_context->grContext()->resetContext(kTextureBinding_GrGLBackendState); | |
| 338 | |
| 339 // set m_parentLayerBridge to make sure 'this' stays alive as long as it has | |
| 340 // live mailboxes | |
| 341 ASSERT(!mailboxInfo->m_parentLayerBridge); | |
| 342 mailboxInfo->m_parentLayerBridge = this; | |
| 343 *outMailbox = mailboxInfo->m_mailbox; | |
| 344 return true; | |
| 345 } | |
| 346 | |
| 347 Canvas2DLayerBridge::MailboxInfo* Canvas2DLayerBridge::createMailboxInfo() { | |
| 348 ASSERT(!m_destructionInProgress); | |
| 349 MailboxInfo* mailboxInfo; | |
| 350 for (mailboxInfo = m_mailboxes.begin(); mailboxInfo < m_mailboxes.end(); mai
lboxInfo++) { | |
| 351 if (mailboxInfo->m_status == MailboxAvailable) { | |
| 352 return mailboxInfo; | |
| 353 } | |
| 354 } | |
| 355 | |
| 356 // No available mailbox: create one. | |
| 357 m_mailboxes.grow(m_mailboxes.size() + 1); | |
| 358 mailboxInfo = &m_mailboxes.last(); | |
| 359 context()->genMailboxCHROMIUM(mailboxInfo->m_mailbox.name); | |
| 360 // Worst case, canvas is triple buffered. More than 3 active mailboxes | |
| 361 // means there is a problem. | |
| 362 // For the single-threaded case, this value needs to be at least | |
| 363 // kMaxSwapBuffersPending+1 (in render_widget.h). | |
| 364 // Because of crbug.com/247874, it needs to be kMaxSwapBuffersPending+2. | |
| 365 // TODO(piman): fix this. | |
| 366 ASSERT(m_mailboxes.size() <= 4); | |
| 367 ASSERT(mailboxInfo < m_mailboxes.end()); | |
| 368 return mailboxInfo; | |
| 369 } | |
| 370 | |
| 371 void Canvas2DLayerBridge::mailboxReleased(const blink::WebExternalTextureMailbox
& mailbox) | |
| 372 { | |
| 373 Vector<MailboxInfo>::iterator mailboxInfo; | |
| 374 for (mailboxInfo = m_mailboxes.begin(); mailboxInfo < m_mailboxes.end(); mai
lboxInfo++) { | |
| 375 if (!memcmp(mailboxInfo->m_mailbox.name, mailbox.name, sizeof(mailbox.na
me))) { | |
| 376 mailboxInfo->m_mailbox.syncPoint = mailbox.syncPoint; | |
| 377 ASSERT(mailboxInfo->m_status == MailboxInUse); | |
| 378 mailboxInfo->m_status = MailboxReleased; | |
| 379 // Trigger Canvas2DLayerBridge self-destruction if this is the | |
| 380 // last live mailbox and the layer bridge is not externally | |
| 381 // referenced. | |
| 382 ASSERT(mailboxInfo->m_parentLayerBridge.get() == this); | |
| 383 mailboxInfo->m_parentLayerBridge.clear(); | |
| 384 return; | |
| 385 } | |
| 386 } | |
| 387 } | |
| 388 | |
| 389 blink::WebLayer* Canvas2DLayerBridge::layer() | |
| 390 { | |
| 391 ASSERT(m_layer); | |
| 392 return m_layer->layer(); | |
| 393 } | |
| 394 | |
| 395 void Canvas2DLayerBridge::contextAcquired() | |
| 396 { | |
| 397 ASSERT(!m_destructionInProgress); | |
| 398 Canvas2DLayerManager::get().layerDidDraw(this); | |
| 399 m_didRecordDrawCommand = true; | |
| 400 } | |
| 401 | |
| 402 unsigned Canvas2DLayerBridge::backBufferTexture() | |
| 403 { | |
| 404 ASSERT(!m_destructionInProgress); | |
| 405 if (!isValid()) | |
| 406 return 0; | |
| 407 contextAcquired(); | |
| 408 m_canvas->flush(); | |
| 409 m_context->flush(); | |
| 410 GrRenderTarget* renderTarget = reinterpret_cast<GrRenderTarget*>(m_canvas->g
etDevice()->accessRenderTarget()); | |
| 411 if (renderTarget) { | |
| 412 return renderTarget->asTexture()->getTextureHandle(); | |
| 413 } | |
| 414 return 0; | |
| 415 } | |
| 416 | |
| 417 Canvas2DLayerBridge::MailboxInfo::MailboxInfo(const MailboxInfo& other) { | |
| 418 // This copy constructor should only be used for Vector reallocation | |
| 419 // Assuming 'other' is to be destroyed, we swap m_image ownership | |
| 420 // rather than do a refcount dance. | |
| 421 memcpy(&m_mailbox, &other.m_mailbox, sizeof(m_mailbox)); | |
| 422 m_image.swap(const_cast<SkAutoTUnref<SkImage>*>(&other.m_image)); | |
| 423 m_status = other.m_status; | |
| 424 } | |
| 425 | |
| 426 } | |
| OLD | NEW |
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Chromium Code Reviews
Issue 26679003:
Move platform/graphics/chromium/* to platform/graphics/ (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master