cef/libcef/browser/browser_info.cc
Marshall Greenblatt dea4daffd7 Implement off-screen rendering support using delegated rendering (issue #1257).
This implementation supports both GPU compositing and software compositing (used when GPU is not supported or when passing `--disable-gpu --disable-gpu-compositing` command-line flags). GPU-accelerated features (WebGL and 3D CSS) that did not work with the previous off-screen rendering implementation do work with this implementation when GPU support is available.

Rendering now operates on a per-frame basis. The frame rate is configurable via CefBrowserSettings.windowless_frame_rate up to a maximum of 60fps (potentially limited by how fast the system can generate new frames). CEF generates a bitmap from the compositor backing and passes it to CefRenderHandler::OnPaint.

The previous CefRenderHandler/CefBrowserHost API for off-screen rendering has been restored mostly as-is with some minor changes:

- CefBrowserHost::Invalidate no longer accepts a CefRect region argument. Instead of invalidating a specific region it now triggers generation of a new frame.
- The |dirtyRects| argument to CefRenderHandler::OnPaint will now always be a single CefRect representing the whole view (frame) size. Previously, invalidated regions were listed separately.
- Linux: CefBrowserHost::SendKeyEvent now expects X11 event information instead of GTK event information. See cefclient for an example of converting GTK events to the necessary format.
- Sizes passed to the CefRenderHandler OnPaint and OnPopupSize methods are now already DPI scaled. Previously, the client had to perform DPI scaling.
- Includes drag&drop implementation from issue #1032.
- Includes unit test fixes from issue #1245.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@1751 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
2014-06-30 22:30:29 +00:00

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// Copyright (c) 2012 The Chromium Embedded Framework 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 "libcef/browser/browser_info.h"
#include "ipc/ipc_message.h"
CefBrowserInfo::CefBrowserInfo(int browser_id, bool is_popup)
: browser_id_(browser_id),
is_popup_(is_popup),
is_windowless_(false) {
DCHECK_GT(browser_id, 0);
}
CefBrowserInfo::~CefBrowserInfo() {
}
void CefBrowserInfo::set_windowless(bool windowless) {
is_windowless_ = windowless;
}
void CefBrowserInfo::add_render_view_id(
int render_process_id, int render_routing_id) {
add_render_id(&render_view_id_set_, render_process_id, render_routing_id);
}
void CefBrowserInfo::add_render_frame_id(
int render_process_id, int render_routing_id) {
add_render_id(&render_frame_id_set_, render_process_id, render_routing_id);
}
void CefBrowserInfo::remove_render_view_id(
int render_process_id, int render_routing_id) {
remove_render_id(&render_view_id_set_, render_process_id, render_routing_id);
}
void CefBrowserInfo::remove_render_frame_id(
int render_process_id, int render_routing_id) {
remove_render_id(&render_frame_id_set_, render_process_id, render_routing_id);
}
bool CefBrowserInfo::is_render_view_id_match(
int render_process_id, int render_routing_id) {
return is_render_id_match(&render_view_id_set_,
render_process_id,
render_routing_id);
}
bool CefBrowserInfo::is_render_frame_id_match(
int render_process_id, int render_routing_id) {
return is_render_id_match(&render_frame_id_set_,
render_process_id,
render_routing_id);
}
CefRefPtr<CefBrowserHostImpl> CefBrowserInfo::browser() {
base::AutoLock lock_scope(lock_);
return browser_;
}
void CefBrowserInfo::set_browser(CefRefPtr<CefBrowserHostImpl> browser) {
base::AutoLock lock_scope(lock_);
browser_ = browser;
}
void CefBrowserInfo::add_render_id(RenderIdSet* id_set,
int render_process_id,
int render_routing_id) {
DCHECK_GT(render_process_id, 0);
DCHECK_GT(render_routing_id, 0);
base::AutoLock lock_scope(lock_);
if (!id_set->empty()) {
RenderIdSet::const_iterator it =
id_set->find(std::make_pair(render_process_id, render_routing_id));
if (it != id_set->end())
return;
}
id_set->insert(std::make_pair(render_process_id, render_routing_id));
}
void CefBrowserInfo::remove_render_id(RenderIdSet* id_set,
int render_process_id,
int render_routing_id) {
DCHECK_GT(render_process_id, 0);
DCHECK_GT(render_routing_id, 0);
base::AutoLock lock_scope(lock_);
DCHECK(!id_set->empty());
if (id_set->empty())
return;
bool erased = id_set->erase(
std::make_pair(render_process_id, render_routing_id)) != 0;
DCHECK(erased);
}
bool CefBrowserInfo::is_render_id_match(const RenderIdSet* id_set,
int render_process_id,
int render_routing_id) {
base::AutoLock lock_scope(lock_);
if (id_set->empty())
return false;
RenderIdSet::const_iterator it =
id_set->find(std::make_pair(render_process_id, render_routing_id));
return (it != id_set->end());
}