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Diffstat (limited to 'lib/delegated_frame_node.cpp')
| -rw-r--r-- | lib/delegated_frame_node.cpp | 519 |
1 files changed, 0 insertions, 519 deletions
diff --git a/lib/delegated_frame_node.cpp b/lib/delegated_frame_node.cpp deleted file mode 100644 index c770f388d..000000000 --- a/lib/delegated_frame_node.cpp +++ /dev/null @@ -1,519 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the QtWebEngine module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -// On Mac we need to reset this define in order to prevent definition -// of "check" macros etc. The "check" macro collides with a member function name in QtQuick. -// See AssertMacros.h in the Mac SDK. -#include <QtGlobal> // We need this for the Q_OS_MAC define. -#if defined(Q_OS_MAC) -#undef __ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORES -#define __ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORES 0 -#endif - -#include "delegated_frame_node.h" - -#if (QT_VERSION >= QT_VERSION_CHECK(5, 2, 0)) -#include "chromium_gpu_helper.h" -#include "type_conversion.h" -#include "yuv_video_node.h" - -#include "base/message_loop/message_loop.h" -#include "base/bind.h" -#include "cc/output/delegated_frame_data.h" -#include "cc/quads/draw_quad.h" -#include "cc/quads/render_pass_draw_quad.h" -#include "cc/quads/solid_color_draw_quad.h" -#include "cc/quads/texture_draw_quad.h" -#include "cc/quads/tile_draw_quad.h" -#include "cc/quads/yuv_video_draw_quad.h" -#include <QOpenGLFramebufferObject> -#include <QSGSimpleTextureNode> -#include <QSGTexture> -#include <QtQuick/private/qquickclipnode_p.h> -#include <QtQuick/private/qquickwindow_p.h> -#include <QtQuick/private/qsgadaptationlayer_p.h> -#include <QtQuick/private/qsgcontext_p.h> -#include <QtQuick/private/qsgrenderer_p.h> -#include <QtQuick/private/qsgtexture_p.h> - -class RenderPassTexture : public QSGTexture -{ -public: - RenderPassTexture(const cc::RenderPass::Id &id, QSGRenderContext *context); - - const cc::RenderPass::Id &id() const { return m_id; } - void bind(); - - int textureId() const { return m_fbo ? m_fbo->texture() : 0; } - QSize textureSize() const { return m_rect.size(); } - bool hasAlphaChannel() const { return m_format != GL_RGB; } - bool hasMipmaps() const { return false; } - - void setRect(const QRect &rect) { m_rect = rect; } - void setFormat(GLenum format) { m_format = format; } - void setDevicePixelRatio(qreal ratio) { m_device_pixel_ratio = ratio; } - QSGNode *rootNode() { return m_rootNode.data(); } - - void grab(); - -private: - cc::RenderPass::Id m_id; - QRect m_rect; - qreal m_device_pixel_ratio; - GLenum m_format; - - QScopedPointer<QSGRootNode> m_rootNode; - QScopedPointer<QSGRenderer> m_renderer; - QScopedPointer<QOpenGLFramebufferObject> m_fbo; - - QSGRenderContext *m_context; -}; - -class MailboxTexture : public QSGTexture { -public: - MailboxTexture(const cc::TransferableResource &resource); - virtual int textureId() const Q_DECL_OVERRIDE { return m_textureId; } - void setTextureSize(const QSize& size) { m_textureSize = size; } - virtual QSize textureSize() const Q_DECL_OVERRIDE { return m_textureSize; } - virtual bool hasAlphaChannel() const Q_DECL_OVERRIDE { return m_hasAlpha; } - void setHasAlphaChannel(bool hasAlpha) { m_hasAlpha = hasAlpha; } - virtual bool hasMipmaps() const Q_DECL_OVERRIDE { return false; } - virtual void bind() Q_DECL_OVERRIDE; - - bool needsToFetch() const { return !m_textureId; } - cc::TransferableResource &resource() { return m_resource; } - void fetchTexture(gpu::gles2::MailboxManager *mailboxManager); - -private: - cc::TransferableResource m_resource; - int m_textureId; - QSize m_textureSize; - bool m_hasAlpha; -}; - -static inline QSharedPointer<RenderPassTexture> findRenderPassTexture(const cc::RenderPass::Id &id, const QList<QSharedPointer<RenderPassTexture> > &list) -{ - Q_FOREACH (const QSharedPointer<RenderPassTexture> &texture, list) - if (texture->id() == id) - return texture; - return QSharedPointer<RenderPassTexture>(); -} - -static QSGNode *buildRenderPassChain(QSGNode *chainParent, const cc::RenderPass *renderPass) -{ - // Chromium already ordered the quads from back to front for us, however the - // Qt scene graph layers individual geometries in their own z-range and uses - // the depth buffer to visually stack nodes according to their item tree order. - // This finds the z-span of all layers so that we can z-compress them to fit - // them between 0.0 and 1.0 on the z axis. - double minZ = 0; - double maxZ = 1; - double src2[8]; - double dst4[16]; - // topleft.x, topleft.y, topRight.y and bottomLeft.x - src2[0] = src2[1] = src2[3] = src2[4] = 0; - - // Go through each layer in this pass and find out their transformed rect. - cc::SharedQuadStateList::const_iterator it = renderPass->shared_quad_state_list.begin(); - cc::SharedQuadStateList::const_iterator sharedStateEnd = renderPass->shared_quad_state_list.end(); - for (; it != sharedStateEnd; ++it) { - gfx::Size &layerSize = (*it)->content_bounds; - // topRight.x - src2[2] = layerSize.width(); - // bottomLeft.y - src2[5] = layerSize.height(); - // bottomRight - src2[6] = layerSize.width(); - src2[7] = layerSize.height(); - (*it)->content_to_target_transform.matrix().map2(src2, 4, dst4); - // Check the mapped corner's z value and track the boundaries. - minZ = std::min(std::min(std::min(std::min(minZ, dst4[2]), dst4[6]), dst4[10]), dst4[14]); - maxZ = std::max(std::max(std::max(std::max(maxZ, dst4[2]), dst4[6]), dst4[10]), dst4[14]); - } - - QSGTransformNode *zCompressNode = new QSGTransformNode; - QMatrix4x4 zCompressMatrix; - zCompressMatrix.scale(1, 1, 1 / (maxZ - minZ)); - zCompressMatrix.translate(0, 0, -minZ); - zCompressNode->setMatrix(zCompressMatrix); - chainParent->appendChildNode(zCompressNode); - return zCompressNode; -} - -static QSGNode *buildLayerChain(QSGNode *chainParent, const cc::SharedQuadState *layerState) -{ - QSGNode *layerChain = chainParent; - if (layerState->is_clipped) { - QQuickDefaultClipNode *clipNode = new QQuickDefaultClipNode(toQt(layerState->clip_rect)); - clipNode->update(); - layerChain->appendChildNode(clipNode); - layerChain = clipNode; - } - if (!layerState->content_to_target_transform.IsIdentity()) { - QSGTransformNode *transformNode = new QSGTransformNode; - transformNode->setMatrix(toQt(layerState->content_to_target_transform.matrix())); - layerChain->appendChildNode(transformNode); - layerChain = transformNode; - } - if (layerState->opacity < 1.0) { - QSGOpacityNode *opacityNode = new QSGOpacityNode; - opacityNode->setOpacity(layerState->opacity); - layerChain->appendChildNode(opacityNode); - layerChain = opacityNode; - } - return layerChain; -} - -RenderPassTexture::RenderPassTexture(const cc::RenderPass::Id &id, QSGRenderContext *context) - : QSGTexture() - , m_id(id) - , m_device_pixel_ratio(1) - , m_format(GL_RGBA) - , m_rootNode(new QSGRootNode) - , m_context(context) -{ -} - -void RenderPassTexture::bind() -{ - glBindTexture(GL_TEXTURE_2D, m_fbo ? m_fbo->texture() : 0); - updateBindOptions(); -} - -void RenderPassTexture::grab() -{ - if (!m_rootNode->firstChild()) { - m_renderer.reset(); - m_fbo.reset(); - return; - } - if (!m_renderer) { - m_renderer.reset(m_context->createRenderer()); - m_renderer->setRootNode(m_rootNode.data()); - } - m_renderer->setDevicePixelRatio(m_device_pixel_ratio); - - if (!m_fbo || m_fbo->size() != m_rect.size() || m_fbo->format().internalTextureFormat() != m_format) - { - QOpenGLFramebufferObjectFormat format; - format.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil); - format.setInternalTextureFormat(m_format); - - m_fbo.reset(new QOpenGLFramebufferObject(m_rect.size(), format)); - glBindTexture(GL_TEXTURE_2D, m_fbo->texture()); - updateBindOptions(true); - } - - m_rootNode->markDirty(QSGNode::DirtyForceUpdate); // Force matrix, clip and opacity update. - m_renderer->nodeChanged(m_rootNode.data(), QSGNode::DirtyForceUpdate); // Force render list update. - - m_renderer->setDeviceRect(m_rect.size()); - m_renderer->setViewportRect(m_rect.size()); - QRectF mirrored(m_rect.left(), m_rect.bottom(), m_rect.width(), -m_rect.height()); - m_renderer->setProjectionMatrixToRect(mirrored); - m_renderer->setClearColor(Qt::transparent); - - m_context->renderNextFrame(m_renderer.data(), m_fbo->handle()); -} - -MailboxTexture::MailboxTexture(const cc::TransferableResource &resource) - : m_resource(resource) - , m_textureId(0) - , m_textureSize(toQt(resource.size)) - , m_hasAlpha(false) -{ -} - -void MailboxTexture::bind() -{ - glBindTexture(GL_TEXTURE_2D, m_textureId); -} - -void MailboxTexture::fetchTexture(gpu::gles2::MailboxManager *mailboxManager) -{ - gpu::gles2::Texture *tex = ConsumeTexture(mailboxManager, GL_TEXTURE_2D, *reinterpret_cast<const gpu::gles2::MailboxName*>(m_resource.mailbox.name)); - - // The texture might already have been deleted (e.g. when navigating away from a page). - if (tex) - m_textureId = service_id(tex); -} - -DelegatedFrameNode::DelegatedFrameNode(QQuickWindow *window) - : m_window(window) - , m_numPendingSyncPoints(0) -{ - setFlag(UsePreprocess); -} - -DelegatedFrameNode::~DelegatedFrameNode() -{ -} - -void DelegatedFrameNode::preprocess() -{ - // With the threaded render loop the GUI thread has been unlocked at this point. - // We can now wait for the Chromium GPU thread to produce textures that will be - // rendered on our quads and fetch the IDs from the mailboxes we were given. - QList<MailboxTexture *> mailboxesToFetch; - Q_FOREACH (const QSharedPointer<MailboxTexture> &mailboxTexture, m_mailboxTextures.values()) - if (mailboxTexture->needsToFetch()) - mailboxesToFetch.append(mailboxTexture.data()); - - if (!mailboxesToFetch.isEmpty()) { - QMutexLocker lock(&m_mutex); - base::MessageLoop *gpuMessageLoop = gpu_message_loop(); - content::SyncPointManager *syncPointManager = sync_point_manager(); - - Q_FOREACH (MailboxTexture *mailboxTexture, mailboxesToFetch) { - m_numPendingSyncPoints++; - AddSyncPointCallbackOnGpuThread(gpuMessageLoop, syncPointManager, mailboxTexture->resource().sync_point, base::Bind(&DelegatedFrameNode::syncPointRetired, this, &mailboxesToFetch)); - } - - m_mailboxesFetchedWaitCond.wait(&m_mutex); - } - - // Then render any intermediate RenderPass in order. - Q_FOREACH (const QSharedPointer<RenderPassTexture> &renderPass, m_renderPassTextures) - renderPass->grab(); -} - -void DelegatedFrameNode::commit(cc::DelegatedFrameData *frameData, cc::TransferableResourceArray *resourcesToRelease) -{ - // Keep the old texture lists around to find the ones we can re-use. - QList<QSharedPointer<RenderPassTexture> > oldRenderPassTextures; - m_renderPassTextures.swap(oldRenderPassTextures); - QMap<int, QSharedPointer<MailboxTexture> > mailboxTextureCandidates; - m_mailboxTextures.swap(mailboxTextureCandidates); - - // A frame's resource_list only contains the new resources to be added to the scene. Quads can - // still reference resources that were added in previous frames. Add them to the list of - // candidates to be picked up by quads, it's then our responsibility to return unused resources - // to the producing child compositor. - for (unsigned i = 0; i < frameData->resource_list.size(); ++i) { - const cc::TransferableResource &res = frameData->resource_list.at(i); - mailboxTextureCandidates[res.id] = QSharedPointer<MailboxTexture>(new MailboxTexture(res)); - } - - // The RenderPasses list is actually a tree where a parent RenderPass is connected - // to its dependencies through a RenderPass::Id reference in one or more RenderPassQuads. - // The list is already ordered with intermediate RenderPasses placed before their - // parent, with the last one in the list being the root RenderPass, the one - // that we displayed to the user. - // All RenderPasses except the last one are rendered to an FBO. - cc::RenderPass *rootRenderPass = frameData->render_pass_list.back(); - - for (unsigned i = 0; i < frameData->render_pass_list.size(); ++i) { - cc::RenderPass *pass = frameData->render_pass_list.at(i); - - QSGNode *renderPassParent = 0; - if (pass != rootRenderPass) { - QSharedPointer<RenderPassTexture> rpTexture = findRenderPassTexture(pass->id, oldRenderPassTextures); - if (!rpTexture) { - QSGRenderContext *sgrc = QQuickWindowPrivate::get(m_window)->context; - rpTexture = QSharedPointer<RenderPassTexture>(new RenderPassTexture(pass->id, sgrc)); - } - m_renderPassTextures.append(rpTexture); - rpTexture->setDevicePixelRatio(m_window->devicePixelRatio()); - rpTexture->setRect(toQt(pass->output_rect)); - rpTexture->setFormat(pass->has_transparent_background ? GL_RGBA : GL_RGB); - renderPassParent = rpTexture->rootNode(); - } else - renderPassParent = this; - - // There is currently no way to know which and how quads changed since the last frame. - // We have to reconstruct the node chain with their geometries on every update. - while (QSGNode *oldChain = renderPassParent->firstChild()) - delete oldChain; - - QSGNode *renderPassChain = buildRenderPassChain(renderPassParent, pass); - const cc::SharedQuadState *currentLayerState = 0; - QSGNode *currentLayerChain = 0; - - cc::QuadList::ConstBackToFrontIterator it = pass->quad_list.BackToFrontBegin(); - cc::QuadList::ConstBackToFrontIterator end = pass->quad_list.BackToFrontEnd(); - for (; it != end; ++it) { - cc::DrawQuad *quad = *it; - - if (currentLayerState != quad->shared_quad_state) { - currentLayerState = quad->shared_quad_state; - currentLayerChain = buildLayerChain(renderPassChain, currentLayerState); - } - - switch (quad->material) { - case cc::DrawQuad::RENDER_PASS: { - const cc::RenderPassDrawQuad *renderPassQuad = cc::RenderPassDrawQuad::MaterialCast(quad); - QSGTexture *texture = findRenderPassTexture(renderPassQuad->render_pass_id, m_renderPassTextures).data(); - // cc::GLRenderer::DrawRenderPassQuad silently ignores missing render passes. - if (!texture) - continue; - - QSGSimpleTextureNode *textureNode = new QSGSimpleTextureNode; - textureNode->setRect(toQt(quad->rect)); - textureNode->setTexture(texture); - currentLayerChain->appendChildNode(textureNode); - break; - } case cc::DrawQuad::TEXTURE_CONTENT: { - const cc::TextureDrawQuad *tquad = cc::TextureDrawQuad::MaterialCast(quad); - QSharedPointer<MailboxTexture> &texture = m_mailboxTextures[tquad->resource_id] = mailboxTextureCandidates.take(tquad->resource_id); - Q_ASSERT(texture); - - // FIXME: TransferableResource::size isn't always set properly for TextureDrawQuads, use the size of its DrawQuad::rect instead. - texture->setTextureSize(toQt(quad->rect.size())); - - // TransferableResource::format seems to always be GL_BGRA even though it might not - // contain any pixel with alpha < 1.0. The information about if they need blending - // for the contents itself is actually stored in quads. - // Tell the scene graph to enable blending for a texture only when at least one quad asks for it. - // Do not rely on DrawQuad::ShouldDrawWithBlending() since the shared_quad_state->opacity - // case will be handled by QtQuick by fetching this information from QSGOpacityNodes. - if (!quad->visible_rect.IsEmpty() && !quad->opaque_rect.Contains(quad->visible_rect)) - texture->setHasAlphaChannel(true); - - QSGSimpleTextureNode *textureNode = new QSGSimpleTextureNode; - textureNode->setTextureCoordinatesTransform(tquad->flipped ? QSGSimpleTextureNode::MirrorVertically : QSGSimpleTextureNode::NoTransform); - textureNode->setRect(toQt(quad->rect)); - textureNode->setFiltering(texture->resource().filter == GL_LINEAR ? QSGTexture::Linear : QSGTexture::Nearest); - textureNode->setTexture(texture.data()); - currentLayerChain->appendChildNode(textureNode); - break; - } case cc::DrawQuad::SOLID_COLOR: { - const cc::SolidColorDrawQuad *scquad = cc::SolidColorDrawQuad::MaterialCast(quad); - QSGRenderContext *sgrc = QQuickWindowPrivate::get(m_window)->context; - QSGRectangleNode *rectangleNode = sgrc->sceneGraphContext()->createRectangleNode(); - - // Qt only supports MSAA and this flag shouldn't be needed. - // If we ever want to use QSGRectangleNode::setAntialiasing for this we should - // try to see if we can do something similar for tile quads first. - Q_UNUSED(scquad->force_anti_aliasing_off); - - rectangleNode->setRect(toQt(quad->rect)); - rectangleNode->setColor(toQt(scquad->color)); - rectangleNode->update(); - currentLayerChain->appendChildNode(rectangleNode); - break; - } case cc::DrawQuad::TILED_CONTENT: { - const cc::TileDrawQuad *tquad = cc::TileDrawQuad::MaterialCast(quad); - QSharedPointer<MailboxTexture> &texture = m_mailboxTextures[tquad->resource_id] = mailboxTextureCandidates.take(tquad->resource_id); - Q_ASSERT(texture); - - if (!quad->visible_rect.IsEmpty() && !quad->opaque_rect.Contains(quad->visible_rect)) - texture->setHasAlphaChannel(true); - - QSGSimpleTextureNode *textureNode = new QSGSimpleTextureNode; - textureNode->setRect(toQt(quad->rect)); - textureNode->setFiltering(texture->resource().filter == GL_LINEAR ? QSGTexture::Linear : QSGTexture::Nearest); - textureNode->setTexture(texture.data()); - - // FIXME: Find out if we can implement a QSGSimpleTextureNode::setSourceRect instead of this hack. - // This has to be done at the end since many QSGSimpleTextureNode methods would overwrite this. - QSGGeometry::updateTexturedRectGeometry(textureNode->geometry(), textureNode->rect(), textureNode->texture()->convertToNormalizedSourceRect(toQt(tquad->tex_coord_rect))); - currentLayerChain->appendChildNode(textureNode); - break; - } case cc::DrawQuad::YUV_VIDEO_CONTENT: { - const cc::YUVVideoDrawQuad *vquad = cc::YUVVideoDrawQuad::MaterialCast(quad); - QSharedPointer<MailboxTexture> &yTexture = m_mailboxTextures[vquad->y_plane_resource_id] = mailboxTextureCandidates.take(vquad->y_plane_resource_id); - QSharedPointer<MailboxTexture> &uTexture = m_mailboxTextures[vquad->u_plane_resource_id] = mailboxTextureCandidates.take(vquad->u_plane_resource_id); - QSharedPointer<MailboxTexture> &vTexture = m_mailboxTextures[vquad->v_plane_resource_id] = mailboxTextureCandidates.take(vquad->v_plane_resource_id); - Q_ASSERT(yTexture && uTexture && vTexture); - - // Do not use a reference for this one, it might be null. - QSharedPointer<MailboxTexture> aTexture; - // This currently requires --enable-vp8-alpha-playback and needs a video with alpha data to be triggered. - if (vquad->a_plane_resource_id) - aTexture = m_mailboxTextures[vquad->a_plane_resource_id] = mailboxTextureCandidates.take(vquad->a_plane_resource_id); - - YUVVideoNode *videoNode = new YUVVideoNode(yTexture.data(), uTexture.data(), vTexture.data(), aTexture.data(), toQt(vquad->tex_scale)); - videoNode->setRect(toQt(quad->rect)); - currentLayerChain->appendChildNode(videoNode); - break; - } default: - qWarning("Unimplemented quad material: %d", quad->material); - } - } - } - - // Send resources of remaining candidates back to the child compositors so that they can be freed or reused. - Q_FOREACH (const QSharedPointer<MailboxTexture> &mailboxTexture, mailboxTextureCandidates.values()) { - // The ResourceProvider ensures that the resource isn't used by the parent compositor's GL - // context in the GPU process by inserting a sync point to be waited for by the child - // compositor's GL context. We don't need this since we are triggering the delegated frame - // ack directly from our rendering thread. At this point (in updatePaintNode) we know that - // a frame that was compositing any of those resources has already been swapped. - // Save a bit of overhead by resetting the sync point that has initially been put there - // for us (mainly to clean the output of --enable-gpu-service-logging). - mailboxTexture->resource().sync_point = 0; - - resourcesToRelease->push_back(mailboxTexture->resource()); - } -} - -void DelegatedFrameNode::fetchTexturesAndUnlockQt(DelegatedFrameNode *frameNode, QList<MailboxTexture *> *mailboxesToFetch) -{ - // Fetch texture IDs from the mailboxes while we're on the GPU thread, where the MailboxManager lives. - gpu::gles2::MailboxManager *mailboxManager = mailbox_manager(); - Q_FOREACH (MailboxTexture *mailboxTexture, *mailboxesToFetch) - mailboxTexture->fetchTexture(mailboxManager); - - // glFlush before yielding to the SG thread, whose context might already start using - // some shared resources provided by the unflushed context here, on the Chromium GPU thread. - glFlush(); - - // Chromium provided everything we were waiting for, let Qt start rendering. - QMutexLocker lock(&frameNode->m_mutex); - frameNode->m_mailboxesFetchedWaitCond.wakeOne(); -} - -void DelegatedFrameNode::syncPointRetired(DelegatedFrameNode *frameNode, QList<MailboxTexture *> *mailboxesToFetch) -{ - // The way that sync points are normally used by the GpuCommandBufferStub is that it asks - // the GpuScheduler to resume the work of the associated GL command stream / context once - // the sync point has been retired by the dependency's context. In other words, a produced - // texture means that the mailbox can be consumed, but the texture itself isn't expected - // to be ready until to control is given back to the GpuScheduler through the event loop. - // Do the same for our implementation by posting a message to the event loop once the last - // of our syncpoints has been retired (the syncpoint callback is called synchronously) and - // only at this point we wake the Qt rendering thread. - QMutexLocker lock(&frameNode->m_mutex); - if (!--frameNode->m_numPendingSyncPoints) - base::MessageLoop::current()->PostTask(FROM_HERE, base::Bind(&DelegatedFrameNode::fetchTexturesAndUnlockQt, frameNode, mailboxesToFetch)); -} - -#endif // QT_VERSION |