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Implement off-screen rendering support using delegated rendering (issue #1257).

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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
This commit is contained in:
Marshall Greenblatt
2014-06-30 22:30:29 +00:00
parent 133317eeec
commit dea4daffd7
106 changed files with 13053 additions and 176 deletions
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18
libcef_dll/cpptoc/client_cpptoc.cc
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@ -22,6 +22,7 @@
#include "libcef_dll/cpptoc/keyboard_handler_cpptoc.h"
#include "libcef_dll/cpptoc/life_span_handler_cpptoc.h"
#include "libcef_dll/cpptoc/load_handler_cpptoc.h"
#include "libcef_dll/cpptoc/render_handler_cpptoc.h"
#include "libcef_dll/cpptoc/request_handler_cpptoc.h"
#include "libcef_dll/ctocpp/browser_ctocpp.h"
#include "libcef_dll/ctocpp/process_message_ctocpp.h"
@ -205,6 +206,22 @@ struct _cef_load_handler_t* CEF_CALLBACK client_get_load_handler(
return CefLoadHandlerCppToC::Wrap(_retval);
}
struct _cef_render_handler_t* CEF_CALLBACK client_get_render_handler(
struct _cef_client_t* self) {
// AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
DCHECK(self);
if (!self)
return NULL;
// Execute
CefRefPtr<CefRenderHandler> _retval = CefClientCppToC::Get(
self)->GetRenderHandler();
// Return type: refptr_same
return CefRenderHandlerCppToC::Wrap(_retval);
}
struct _cef_request_handler_t* CEF_CALLBACK client_get_request_handler(
struct _cef_client_t* self) {
// AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
@ -264,6 +281,7 @@ CefClientCppToC::CefClientCppToC(CefClient* cls)
struct_.struct_.get_keyboard_handler = client_get_keyboard_handler;
struct_.struct_.get_life_span_handler = client_get_life_span_handler;
struct_.struct_.get_load_handler = client_get_load_handler;
struct_.struct_.get_render_handler = client_get_render_handler;
struct_.struct_.get_request_handler = client_get_request_handler;
struct_.struct_.on_process_message_received =
client_on_process_message_received;