RESOLVED INVALID229182
compressedTexSubImage2D does not return error when COMPRESSED_RGB_ETC1_WEBGL is used 
https://bugs.webkit.org/show_bug.cgi?id=229182
Summary compressedTexSubImage2D does not return error when COMPRESSED_RGB_ETC1_WEBGL ...
Kimmo Kinnunen
Reported 2021-08-17 02:37:25 PDT
compressedTexSubImage2D does return error when COMPRESSED_RGB_ETC1_WEBGL is used Would have been easier to understand the behavior for the developer in bug 229180.
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Kimmo Kinnunen
Comment 1 2021-08-17 02:39:03 PDT
WebGLRenderingContextBase::validateCompressedTexDimensions ... case ExtensionsGL::ETC1_RGB8_OES: // Not supported for ETC1_RGB8_OES textures. return false;
Kenneth Russell
Comment 2 2021-08-17 11:10:37 PDT
Changed summary: "does" -> "does not".
Radar WebKit Bug Importer
Comment 3 2021-08-24 02:38:16 PDT
<rdar://problem/82283649>
Kimmo Kinnunen
Comment 4 2021-08-31 03:16:22 PDT
In fact, the unreported error in validateCompressedTexSubDimensions is !USE(ANGLE) block. ANGLE does report INVALID_OPERATION and this should have been observable in the original report should I have understood to add a check for it. (Since it's from ANGLE and not a simulated error, it's not printed in the console).
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