Changeset 100217 in webkit

Timestamp:

Nov 14, 2011, 4:51:31 PM (15 years ago)

Author:

commit-queue@webkit.org

Message:

Expose compositeAndReadback in WebLayerTreeView
​https://bugs.webkit.org/show_bug.cgi?id=72188

Patch by Ian Vollick <​vollick@chromium.org> on 2011-11-14
Reviewed by Darin Fisher.

• public/WebLayerTreeView.h:
• src/WebLayerTreeView.cpp:

(WebKit::WebLayerTreeView::compositeAndReadback):

Location:

trunk/Source/WebKit/chromium

Files:

• ChangeLog (modified) (1 diff)
• public/WebLayerTreeView.h (modified) (2 diffs)
• src/WebLayerTreeView.cpp (modified) (2 diffs)

trunk/Source/WebKit/chromium/ChangeLog

@@ +1 @@
+2011-11-14  Ian Vollick  <vollick@chromium.org>
+
+        Expose compositeAndReadback in WebLayerTreeView
+        https://bugs.webkit.org/show_bug.cgi?id=72188
+
+        Reviewed by Darin Fisher.
+
+        * public/WebLayerTreeView.h:
+        * src/WebLayerTreeView.cpp:
+        (WebKit::WebLayerTreeView::compositeAndReadback):
+
 2011-11-14  Raymond Toy  <rtoy@google.com>
 

trunk/Source/WebKit/chromium/public/WebLayerTreeView.h

@@ -38 +38 @@
 class WebLayer;
 class WebLayerTreeViewClient;
+struct WebRect;
 struct WebSize;
 
@@ -82 +83 @@
     WEBKIT_EXPORT WebSize viewportSize() const;
 
+    // Composites and attempts to read back the result into the provided
+    // buffer. If it wasn't possible, e.g. due to context lost, will return
+    // false. Pixel format is 32bit (RGBA), and the provided buffer must be
+    // large enough contain viewportSize().width() * viewportSize().height()
+    // pixels. The WebLayerTreeView does not assume ownership of the buffer.
+    // The buffer is not modified if the false is returned.
+    WEBKIT_EXPORT bool compositeAndReadback(void *pixels, const WebRect&);
+
 #if WEBKIT_IMPLEMENTATION
     WebLayerTreeView(const WTF::PassRefPtr<WebCore::CCLayerTreeHost>&);

trunk/Source/WebKit/chromium/src/WebLayerTreeView.cpp

@@ -28 +28 @@
 
 #include "WebLayerTreeViewImpl.h"
+#include "WebRect.h"
 #include "WebSize.h"
 #include "cc/CCLayerTreeHost.h"
@@ -85 +86 @@
 }
 
+bool WebLayerTreeView::compositeAndReadback(void *pixels, const WebRect& rect)
+{
+    return m_private->compositeAndReadback(pixels, rect);
+}
+
 WebLayerTreeView::WebLayerTreeView(const PassRefPtr<CCLayerTreeHost>& node)
     : m_private(node)