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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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6
cef_paths.gypi
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@@ -41,6 +41,7 @@
'include/cef_path_util.h',
'include/cef_process_message.h',
'include/cef_process_util.h',
'include/cef_render_handler.h',
'include/cef_render_process_handler.h',
'include/cef_request.h',
'include/cef_request_context.h',
@@ -92,6 +93,7 @@
'include/capi/cef_path_util_capi.h',
'include/capi/cef_process_message_capi.h',
'include/capi/cef_process_util_capi.h',
'include/capi/cef_render_handler_capi.h',
'include/capi/cef_render_process_handler_capi.h',
'include/capi/cef_request_capi.h',
'include/capi/cef_request_context_capi.h',
@@ -210,6 +212,8 @@
'libcef_dll/cpptoc/quota_callback_cpptoc.h',
'libcef_dll/ctocpp/read_handler_ctocpp.cc',
'libcef_dll/ctocpp/read_handler_ctocpp.h',
'libcef_dll/ctocpp/render_handler_ctocpp.cc',
'libcef_dll/ctocpp/render_handler_ctocpp.h',
'libcef_dll/ctocpp/render_process_handler_ctocpp.cc',
'libcef_dll/ctocpp/render_process_handler_ctocpp.h',
'libcef_dll/cpptoc/request_cpptoc.cc',
@@ -370,6 +374,8 @@
'libcef_dll/ctocpp/quota_callback_ctocpp.h',
'libcef_dll/cpptoc/read_handler_cpptoc.cc',
'libcef_dll/cpptoc/read_handler_cpptoc.h',
'libcef_dll/cpptoc/render_handler_cpptoc.cc',
'libcef_dll/cpptoc/render_handler_cpptoc.h',
'libcef_dll/cpptoc/render_process_handler_cpptoc.cc',
'libcef_dll/cpptoc/render_process_handler_cpptoc.h',
'libcef_dll/ctocpp/request_ctocpp.cc',