RESOLVED FIXED244526
TextureMapper: Attach a depth buffer for BitmapTextureGL for 3D transform 
https://bugs.webkit.org/show_bug.cgi?id=244526
Summary TextureMapper: Attach a depth buffer for BitmapTextureGL for 3D transform
Fujii Hironori
Reported 2022-08-29 19:38:06 PDT
TextureMapper: Attach a depth buffer for BitmapTextureGL for 3D transform The current implementation is using only the depth buffer of the default framebuffer. To support nesting 3D rendering context (bug#241699), I'm going to attach a depth buffer for BitmapTextureGL.
Attachments
Patch (13.83 KB, patch)
2022-08-29 19:44 PDT, Fujii Hironori 		no flags
DetailsFormatted DiffDiff
Patch (16.91 KB, patch)
2022-09-29 14:38 PDT, Fujii Hironori 		no flags
DetailsFormatted DiffDiff
[fast-cq] Patch for landing (17.92 KB, patch)
2022-09-29 21:45 PDT, Fujii Hironori 		no flags
DetailsFormatted DiffDiff
Show Obsolete (2) View All Add attachment proposed patch, testcase, etc.
Fujii Hironori
Comment 1 2022-08-29 19:44:48 PDT
Created attachment 461998 [details] Patch
Fujii Hironori
Comment 2 2022-08-30 13:03:57 PDT
Comment on attachment 461998 [details] Patch GTK EWS reported test failures. depth bits isn't enough. Using GL_DEPTH_COMPONENT24 passes the tests, But, this isn't available for ES2.0.
Fujii Hironori
Comment 3 2022-08-31 21:21:04 PDT
I found out another problem for WinCairo. It seems that ANGLE can't attach both a depth buffer and a stencil buffer to a fbo. WinCairo has to use a single depth/stencil buffer of GL_DEPTH24_STENCIL8_OES. Linux doesn't seem to have such problem.
Radar WebKit Bug Importer
Comment 4 2022-09-05 19:39:15 PDT
<rdar://problem/99581351>
Fujii Hironori
Comment 5 2022-09-29 14:38:43 PDT
Created attachment 462718 [details] Patch
Don Olmstead
Comment 6 2022-09-29 15:02:05 PDT
Comment on attachment 462718 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=462718&action=review r=me with nits > Source/WebCore/platform/graphics/texmap/BitmapTextureGL.h:45 > +#if OS(WINDOWS) > +#define USE_TEXMAP_DEPTH_STENCIL_BUFFER 1 > +#else > +#define USE_TEXMAP_DEPTH_STENCIL_BUFFER 0 > +#endif From your commit message it seems like this might be better to be `#if USE(ANGLE)`? Also I feel like this should be in a WTF header not just hanging out here.
Fujii Hironori
Comment 7 2022-09-29 17:00:58 PDT
Comment on attachment 462718 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=462718&action=review Thank you very much for the review. >> Source/WebCore/platform/graphics/texmap/BitmapTextureGL.h:45 >> +#endif > > From your commit message it seems like this might be better to be `#if USE(ANGLE)`? > > Also I feel like this should be in a WTF header not just hanging out here. GTK and WPE also enable USE_ANGLE. USE_ANGLE is nonsense anymore. We should remove it. I don't want to recompile whole WebKit just by changing TextureMapper configs. Not all USE_ macro definitions are in WTF. I think it's OK to be here.
Fujii Hironori
Comment 8 2022-09-29 21:45:12 PDT
Created attachment 462723 [details] [fast-cq] Patch for landing
EWS
Comment 9 2022-09-29 21:47:46 PDT
Committed 255021@main (0793eb5a3182): <https://commits.webkit.org/255021@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 462723 [details].
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