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| ** |
| ** Copyright (C) 2018 The Qt Company Ltd. |
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| ** This file is part of the QtWebEngine module of the Qt Toolkit. |
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| ** |
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| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
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| ****************************************************************************/ |
| |
| #include "compositor_resource_fence.h" |
| #include "ozone/gl_surface_qt.h" |
| #include "ui/gl/gl_context.h" |
| |
| #include <QtGui/private/qtguiglobal_p.h> |
| #include <QtGui/qopenglcontext.h> |
| |
| #ifndef GL_TIMEOUT_IGNORED |
| #define GL_TIMEOUT_IGNORED 0xFFFFFFFFFFFFFFFFull |
| #endif |
| |
| |
| #if QT_CONFIG(egl) |
| #include <EGL/egl.h> |
| #include <EGL/eglext.h> |
| #endif |
| |
| namespace QtWebEngineCore { |
| |
| void CompositorResourceFence::wait() |
| { |
| if (!m_sync) |
| return; |
| |
| QOpenGLContext *context = QOpenGLContext::currentContext(); |
| Q_ASSERT(context); |
| |
| // Chromium uses its own GL bindings and stores in in thread local storage. |
| // For that reason, let chromium_gpu_helper.cpp contain the producing code that will run in the Chromium |
| // GPU thread, and put the sync consuming code here that will run in the QtQuick SG or GUI thread. |
| switch (m_sync.type) { |
| case gl::TransferableFence::NoSync: |
| break; |
| case gl::TransferableFence::EglSync: |
| #ifdef EGL_KHR_reusable_sync |
| { |
| static bool resolved = false; |
| static PFNEGLCLIENTWAITSYNCKHRPROC eglClientWaitSyncKHR = 0; |
| |
| if (!resolved) { |
| if (gl::GLSurfaceQt::HasEGLExtension("EGL_KHR_fence_sync")) |
| eglClientWaitSyncKHR = (PFNEGLCLIENTWAITSYNCKHRPROC)context->getProcAddress("eglClientWaitSyncKHR"); |
| resolved = true; |
| } |
| |
| if (eglClientWaitSyncKHR) |
| // FIXME: Use the less wasteful eglWaitSyncKHR once we have a device that supports EGL_KHR_wait_sync. |
| eglClientWaitSyncKHR(m_sync.egl.display, m_sync.egl.sync, 0, EGL_FOREVER_KHR); |
| } |
| #endif |
| break; |
| case gl::TransferableFence::ArbSync: |
| typedef void (QOPENGLF_APIENTRYP WaitSyncPtr)(GLsync sync, GLbitfield flags, GLuint64 timeout); |
| static WaitSyncPtr glWaitSync_ = 0; |
| if (!glWaitSync_) { |
| glWaitSync_ = (WaitSyncPtr)context->getProcAddress("glWaitSync"); |
| Q_ASSERT(glWaitSync_); |
| } |
| glWaitSync_(m_sync.arb.sync, 0, GL_TIMEOUT_IGNORED); |
| break; |
| } |
| |
| release(); |
| } |
| |
| void CompositorResourceFence::release() |
| { |
| if (!m_sync) |
| return; |
| |
| QOpenGLContext *context = QOpenGLContext::currentContext(); |
| if (!context) |
| return; |
| |
| // Chromium uses its own GL bindings and stores in in thread local storage. |
| // For that reason, let chromium_gpu_helper.cpp contain the producing code that will run in the Chromium |
| // GPU thread, and put the sync consuming code here that will run in the QtQuick SG or GUI thread. |
| switch (m_sync.type) { |
| case gl::TransferableFence::NoSync: |
| break; |
| case gl::TransferableFence::EglSync: |
| #ifdef EGL_KHR_reusable_sync |
| { |
| static bool resolved = false; |
| static PFNEGLDESTROYSYNCKHRPROC eglDestroySyncKHR = 0; |
| |
| if (!resolved) { |
| if (gl::GLSurfaceQt::HasEGLExtension("EGL_KHR_fence_sync")) |
| eglDestroySyncKHR = (PFNEGLDESTROYSYNCKHRPROC)context->getProcAddress("eglDestroySyncKHR"); |
| resolved = true; |
| } |
| |
| if (eglDestroySyncKHR) { |
| // FIXME: Use the less wasteful eglWaitSyncKHR once we have a device that supports EGL_KHR_wait_sync. |
| eglDestroySyncKHR(m_sync.egl.display, m_sync.egl.sync); |
| m_sync.reset(); |
| } |
| } |
| #endif |
| break; |
| case gl::TransferableFence::ArbSync: |
| typedef void (QOPENGLF_APIENTRYP DeleteSyncPtr)(GLsync sync); |
| static DeleteSyncPtr glDeleteSync_ = 0; |
| if (!glDeleteSync_) { |
| glDeleteSync_ = (DeleteSyncPtr)context->getProcAddress("glDeleteSync"); |
| Q_ASSERT(glDeleteSync_); |
| } |
| glDeleteSync_(m_sync.arb.sync); |
| m_sync.reset(); |
| break; |
| } |
| // If Chromium was able to create a sync, we should have been able to handle its type here too. |
| Q_ASSERT(!m_sync); |
| } |
| |
| // static |
| scoped_refptr<CompositorResourceFence> CompositorResourceFence::create(std::unique_ptr<gl::GLFence> glFence) |
| { |
| if (!glFence && gl::GLContext::GetCurrent() && gl::GLFence::IsSupported()) |
| glFence = gl::GLFence::Create(); |
| if (glFence) |
| return base::MakeRefCounted<CompositorResourceFence>(glFence->Transfer()); |
| return nullptr; |
| } |
| |
| } // namespace QtWebEngineCore |