Title: [295430] trunk/Source/WebCore/html/canvas/WebGL2RenderingContext.cpp
- Revision
- 295430
- Author
- [email protected]
- Date
- 2022-06-09 12:26:54 -0700 (Thu, 09 Jun 2022)
Log Message
Need to check the context wasn't lost in WebGL2RenderingContext::readBuffer()
https://bugs.webkit.org/show_bug.cgi?id=241477
<rdar://94289317>
Patch by Antoine Quint <[email protected]> on 2022-06-09
Reviewed by Dean Jackson.
All other APIs exposed on WebGL2RenderingContext are guarded by isContextLostOrPending()
checks, and readBuffer() should be no exception.
* Source/WebCore/html/canvas/WebGL2RenderingContext.cpp:
(WebCore::WebGL2RenderingContext::readBuffer):
Canonical link: https://commits.webkit.org/251436@main
Modified Paths
Diff
Modified: trunk/Source/WebCore/html/canvas/WebGL2RenderingContext.cpp (295429 => 295430)
--- trunk/Source/WebCore/html/canvas/WebGL2RenderingContext.cpp 2022-06-09 19:25:08 UTC (rev 295429)
+++ trunk/Source/WebCore/html/canvas/WebGL2RenderingContext.cpp 2022-06-09 19:26:54 UTC (rev 295430)
@@ -811,6 +811,9 @@
void WebGL2RenderingContext::readBuffer(GCGLenum src)
{
+ if (isContextLostOrPending())
+ return;
+
if (src == GraphicsContextGL::BACK) {
// Because the backbuffer is simulated on all current WebKit ports, we need to change BACK to COLOR_ATTACHMENT0.
if (m_readFramebufferBinding) {
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