Support running GPU service on UI thread

Create content::GpuProcess on UI thread if threaded OpenGL is not supported.

Fixes: QTBUG-71126
Change-Id: I7965dec66c8b8e9c92d292731d21ee0df5056a2e
Reviewed-by: Michael Brüning <michael.bruning@qt.io>

1 files changed, 15 insertions, 0 deletions

diff --git a/src/core/web_engine_context.h b/src/core/web_engine_context.h
index ce71984d4..036dc4ccb 100644
--- a/src/core/web_engine_context.h
+++ b/src/core/web_engine_context.h
@@ -52,6 +52,13 @@ class RunLoop;
 namespace content {
 class BrowserMainRunner;
 class ContentMainRunner;
+class GpuProcess;
+class GpuThreadController;
+class InProcessChildThreadParams;
+}
+
+namespace gpu {
+struct GpuPreferences;
 }
 
 #if QT_CONFIG(webengine_printing_and_pdf)
@@ -93,6 +100,12 @@ private:
     WebEngineContext();
     ~WebEngineContext();
 
+    static std::unique_ptr<content::GpuThreadController> createGpuThreadController(
+        const content::InProcessChildThreadParams &params, const gpu::GpuPreferences &gpuPreferences);
+    static void createGpuProcess(
+        const content::InProcessChildThreadParams &params, const gpu::GpuPreferences &gpuPreferences);
+    static void destroyGpuProcess();
+
     std::unique_ptr<base::RunLoop> m_runLoop;
     std::unique_ptr<ContentMainDelegateQt> m_mainDelegate;
     std::unique_ptr<content::ContentMainRunner> m_contentRunner;
@@ -100,6 +113,8 @@ private:
     std::unique_ptr<QObject> m_globalQObject;
     std::unique_ptr<ProfileAdapter> m_defaultProfileAdapter;
     std::unique_ptr<DevToolsServerQt> m_devtoolsServer;
+    std::unique_ptr<content::GpuProcess> m_gpuProcess;
+    bool m_gpuProcessDestroyed = false;
     QVector<ProfileAdapter*> m_profileAdapters;
 
 #if QT_CONFIG(webengine_printing_and_pdf)