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cefclient: Set recommended command-line switches for off-screen rendering

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Marshall Greenblatt
2015-08-17 18:14:59 -04:00
parent 4b491c3a77
commit aef9fd486a
4 changed files with 42 additions and 0 deletions
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37
tests/cefclient/browser/client_app_browser.cc
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@@ -6,12 +6,49 @@
#include "include/base/cef_logging.h"
#include "include/cef_cookie.h"
#include "cefclient/common/client_switches.h"
namespace client {
ClientAppBrowser::ClientAppBrowser() {
}
void ClientAppBrowser::OnBeforeCommandLineProcessing(
const CefString& process_type,
CefRefPtr<CefCommandLine> command_line) {
// Pass additional command-line flags to the browser process.
if (process_type.empty()) {
// Pass additional command-line flags when off-screen rendering is enabled.
if (command_line->HasSwitch(switches::kOffScreenRenderingEnabled)) {
// If the PDF extension is enabled then cc Surfaces must be disabled for
// PDFs to render correctly.
// See https://bitbucket.org/chromiumembedded/cef/issues/1689 for details.
if (!command_line->HasSwitch("disable-extensions") &&
!command_line->HasSwitch("disable-pdf-extension")) {
command_line->AppendSwitch("disable-surfaces");
}
// Use software rendering and compositing (disable GPU) for increased FPS
// and decreased CPU usage. This will also disable WebGL so remove these
// switches if you need that capability.
// See https://bitbucket.org/chromiumembedded/cef/issues/1257 for details.
if (!command_line->HasSwitch(switches::kEnableGPU)) {
command_line->AppendSwitch("disable-gpu");
command_line->AppendSwitch("disable-gpu-compositing");
}
// Synchronize the frame rate between all processes. This results in
// decreased CPU usage by avoiding the generation of extra frames that
// would otherwise be discarded. The frame rate can be set at browser
// creation time via CefBrowserSettings.windowless_frame_rate or changed
// dynamically using CefBrowserHost::SetWindowlessFrameRate. In cefclient
// it can be set via the command-line using `--off-screen-frame-rate=XX`.
// See https://bitbucket.org/chromiumembedded/cef/issues/1368 for details.
command_line->AppendSwitch("enable-begin-frame-scheduling");
}
}
}
void ClientAppBrowser::OnContextInitialized() {
CreateDelegates(delegates_);