Index: cc/CCTextureUpdateController.cpp |
diff --git a/cc/CCTextureUpdateController.cpp b/cc/CCTextureUpdateController.cpp |
deleted file mode 100644 |
index 200948da6b8522c1320df3e4d1e538c152389bca..0000000000000000000000000000000000000000 |
--- a/cc/CCTextureUpdateController.cpp |
+++ /dev/null |
@@ -1,197 +0,0 @@ |
-// Copyright 2012 The Chromium Authors. All rights reserved. |
-// Use of this source code is governed by a BSD-style license that can be |
-// found in the LICENSE file. |
- |
-#include "config.h" |
- |
-#include "CCTextureUpdateController.h" |
- |
-#include "GraphicsContext3D.h" |
-#include "TextureCopier.h" |
-#include "TextureUploader.h" |
-#include "TraceEvent.h" |
-#include <limits> |
-#include <wtf/CurrentTime.h> |
- |
-namespace { |
- |
-// Number of partial updates we allow. |
-static const size_t partialTextureUpdatesMax = 12; |
- |
-// Measured in seconds. |
-static const double textureUpdateTickRate = 0.004; |
- |
-// Measured in seconds. |
-static const double uploaderBusyTickRate = 0.001; |
- |
-// Flush interval when performing texture uploads. |
-static const int textureUploadFlushPeriod = 4; |
- |
-// Number of blocking update intervals to allow. |
-static const size_t maxBlockingUpdateIntervals = 4; |
- |
-} // anonymous namespace |
- |
-namespace cc { |
- |
-size_t CCTextureUpdateController::maxPartialTextureUpdates() |
-{ |
- return partialTextureUpdatesMax; |
-} |
- |
-size_t CCTextureUpdateController::maxFullUpdatesPerTick(TextureUploader* uploader) |
-{ |
- double texturesPerSecond = uploader->estimatedTexturesPerSecond(); |
- size_t texturesPerTick = floor(textureUpdateTickRate * texturesPerSecond); |
- return texturesPerTick ? texturesPerTick : 1; |
-} |
- |
-CCTextureUpdateController::CCTextureUpdateController(CCTextureUpdateControllerClient* client, CCThread* thread, PassOwnPtr<CCTextureUpdateQueue> queue, CCResourceProvider* resourceProvider, TextureUploader* uploader) |
- : m_client(client) |
- , m_timer(adoptPtr(new CCTimer(thread, this))) |
- , m_queue(queue) |
- , m_resourceProvider(resourceProvider) |
- , m_uploader(uploader) |
- , m_textureUpdatesPerTick(maxFullUpdatesPerTick(uploader)) |
- , m_firstUpdateAttempt(true) |
-{ |
-} |
- |
-CCTextureUpdateController::~CCTextureUpdateController() |
-{ |
-} |
- |
-void CCTextureUpdateController::performMoreUpdates( |
- base::TimeTicks timeLimit) |
-{ |
- m_timeLimit = timeLimit; |
- |
- // Update already in progress. |
- if (m_timer->isActive()) |
- return; |
- |
- // Call updateMoreTexturesNow() directly unless it's the first update |
- // attempt. This ensures that we empty the update queue in a finite |
- // amount of time. |
- if (m_firstUpdateAttempt) { |
- // Post a 0-delay task when no updates were left. When it runs, |
- // readyToFinalizeTextureUpdates() will be called. |
- if (!updateMoreTexturesIfEnoughTimeRemaining()) |
- m_timer->startOneShot(0); |
- |
- m_firstUpdateAttempt = false; |
- } else |
- updateMoreTexturesNow(); |
-} |
- |
-void CCTextureUpdateController::discardUploadsToEvictedResources() |
-{ |
- m_queue->clearUploadsToEvictedResources(); |
-} |
- |
-void CCTextureUpdateController::finalize() |
-{ |
- size_t uploadCount = 0; |
- while (m_queue->fullUploadSize()) { |
- if (!(uploadCount % textureUploadFlushPeriod) && uploadCount) |
- m_resourceProvider->shallowFlushIfSupported(); |
- |
- m_uploader->uploadTexture( |
- m_resourceProvider, m_queue->takeFirstFullUpload()); |
- uploadCount++; |
- } |
- |
- while (m_queue->partialUploadSize()) { |
- if (!(uploadCount % textureUploadFlushPeriod) && uploadCount) |
- m_resourceProvider->shallowFlushIfSupported(); |
- |
- m_uploader->uploadTexture( |
- m_resourceProvider, m_queue->takeFirstPartialUpload()); |
- uploadCount++; |
- } |
- |
- if (uploadCount) |
- m_resourceProvider->shallowFlushIfSupported(); |
- |
- if (m_queue->copySize()) { |
- TextureCopier* copier = m_resourceProvider->textureCopier(); |
- while (m_queue->copySize()) |
- copier->copyTexture(m_queue->takeFirstCopy()); |
- |
- // If we've performed any texture copies, we need to insert a flush |
- // here into the compositor context before letting the main thread |
- // proceed as it may make draw calls to the source texture of one of |
- // our copy operations. |
- copier->flush(); |
- } |
-} |
- |
-void CCTextureUpdateController::onTimerFired() |
-{ |
- if (!updateMoreTexturesIfEnoughTimeRemaining()) |
- m_client->readyToFinalizeTextureUpdates(); |
-} |
- |
-base::TimeTicks CCTextureUpdateController::now() const |
-{ |
- return base::TimeTicks::Now(); |
-} |
- |
-base::TimeDelta CCTextureUpdateController::updateMoreTexturesTime() const |
-{ |
- return base::TimeDelta::FromMilliseconds(textureUpdateTickRate * 1000); |
-} |
- |
-size_t CCTextureUpdateController::updateMoreTexturesSize() const |
-{ |
- return m_textureUpdatesPerTick; |
-} |
- |
-size_t CCTextureUpdateController::maxBlockingUpdates() const |
-{ |
- return updateMoreTexturesSize() * maxBlockingUpdateIntervals; |
-} |
- |
-bool CCTextureUpdateController::updateMoreTexturesIfEnoughTimeRemaining() |
-{ |
- // Blocking uploads will increase when we're too aggressive in our upload |
- // time estimate. We use a different timeout here to prevent unnecessary |
- // amounts of idle time when blocking uploads have reached the max. |
- if (m_uploader->numBlockingUploads() >= maxBlockingUpdates()) { |
- m_timer->startOneShot(uploaderBusyTickRate); |
- return true; |
- } |
- |
- if (!m_queue->fullUploadSize()) |
- return false; |
- |
- bool hasTimeRemaining = m_timeLimit.is_null() || |
- this->now() < m_timeLimit - updateMoreTexturesTime(); |
- if (hasTimeRemaining) |
- updateMoreTexturesNow(); |
- |
- return true; |
-} |
- |
-void CCTextureUpdateController::updateMoreTexturesNow() |
-{ |
- size_t uploads = std::min( |
- m_queue->fullUploadSize(), updateMoreTexturesSize()); |
- m_timer->startOneShot( |
- updateMoreTexturesTime().InSecondsF() / updateMoreTexturesSize() * |
- uploads); |
- |
- if (!uploads) |
- return; |
- |
- size_t uploadCount = 0; |
- while (m_queue->fullUploadSize() && uploadCount < uploads) { |
- if (!(uploadCount % textureUploadFlushPeriod) && uploadCount) |
- m_resourceProvider->shallowFlushIfSupported(); |
- m_uploader->uploadTexture(m_resourceProvider, m_queue->takeFirstFullUpload()); |
- uploadCount++; |
- } |
- m_resourceProvider->shallowFlushIfSupported(); |
-} |
- |
-} |