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osr: Implement shared texture support (fixes #1006, fixes #2575)

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Adds support for the OnAcceleratedPaint callback. Verified to work
on macOS and Windows. Linux support is present but not implemented
for cefclient, so it is not verified to work.

To test:
Run `cefclient --off-screen-rendering-enabled --shared-texture-enabled`
This commit is contained in:
reito
2024-03-08 20:44:56 +08:00
committed by Marshall Greenblatt
parent dca0435d2f
commit 260dd0ca24
43 changed files with 768 additions and 108 deletions
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32
include/capi/cef_render_handler_capi.h
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@ -33,7 +33,7 @@
// by hand. See the translator.README.txt file in the tools directory for
// more information.
//
// $hash=5309b2f6da62526ed92c928c0918bc27898cf03b$
// $hash=5151b6ea3c06e46a75f2cd7679044a2891063d29$
//
#ifndef CEF_INCLUDE_CAPI_CEF_RENDER_HANDLER_CAPI_H_
@ -149,17 +149,27 @@ typedef struct _cef_render_handler_t {
/// Called when an element has been rendered to the shared texture handle.
/// |type| indicates whether the element is the view or the popup widget.
/// |dirtyRects| contains the set of rectangles in pixel coordinates that need
/// to be repainted. |shared_handle| is the handle for a D3D11 Texture2D that
/// can be accessed via ID3D11Device using the OpenSharedResource function.
/// This function is only called when cef_window_tInfo::shared_texture_enabled
/// is set to true (1), and is currently only supported on Windows.
/// to be repainted. |info| contains the shared handle; on Windows it is a
/// HANDLE to a texture that can be opened with D3D11 OpenSharedResource, on
/// macOS it is an IOSurface pointer that can be opened with Metal or OpenGL,
/// and on Linux it contains several planes, each with an fd to the underlying
/// system native buffer.
///
void(CEF_CALLBACK* on_accelerated_paint)(struct _cef_render_handler_t* self,
struct _cef_browser_t* browser,
cef_paint_element_type_t type,
size_t dirtyRectsCount,
cef_rect_t const* dirtyRects,
void* shared_handle);
/// The underlying implementation uses a pool to deliver frames. As a result,
/// the handle may differ every frame depending on how many frames are in-
/// progress. The handle's resource cannot be cached and cannot be accessed
/// outside of this callback. It should be reopened each time this callback is
/// executed and the contents should be copied to a texture owned by the
/// client application. The contents of |info| will be released back to the
/// pool after this callback returns.
///
void(CEF_CALLBACK* on_accelerated_paint)(
struct _cef_render_handler_t* self,
struct _cef_browser_t* browser,
cef_paint_element_type_t type,
size_t dirtyRectsCount,
cef_rect_t const* dirtyRects,
const cef_accelerated_paint_info_t* info);
///
/// Called to retrieve the size of the touch handle for the specified