Created attachment 93670 [details] geometry.trace This application uses a geometry shader, and runs without crashing, but there are graphics artifacts, see geometry.0000001176.png and geometry.0000001644.png: Source code for the application can be found here: https://bitbucket.org/alfonse/gltut/src/1d1479cc7027f1e32c5adff748f3b296f1931d84/Tut%2013%20Impostors/GeomImpostor.cpp?at=default https://bitbucket.org/alfonse/gltut/src/1d1479cc7027f1e32c5adff748f3b296f1931d84/Tut%2013%20Impostors/data/GeomImpostor.frag?at=default https://bitbucket.org/alfonse/gltut/src/1d1479cc7027f1e32c5adff748f3b296f1931d84/Tut%2013%20Impostors/data/GeomImpostor.geom?at=default https://bitbucket.org/alfonse/gltut/src/1d1479cc7027f1e32c5adff748f3b296f1931d84/Tut%2013%20Impostors/data/GeomImpostor.vert?at=default It doesn't work exactly as is with the upstream source code, due to mismatching layouts between vert/geom/frag shader, but adding this to all shaders makes it run: layout(std140) uniform; Let me know if a tarball with a working source code would help debugging or if the apitrace suffices. I did an apitrace, and rerun it using llvmpipe forced to 3.3, and there are no artifacts there, see geometry.0000001176.good.png: $ MESA_GLSL_VERSION_OVERRIDE=330 MESA_GL_VERSION_OVERRIDE=3.3 LIBGL_ALWAYS_SOFTWARE=1 glretrace ./geometry.trace Kernel is 3.14.0-rc1 + merge of 7c4c62a04a2a80e3feb5d6c97aca1e413b11c790 from drm-fixes: $ uname -a Linux debian 3.14.0-rc1-00015-g7c4c62a #48 SMP PREEMPT Sat Feb 8 17:33:48 EET 2014 x86_64 GNU/Linux Mesa is from the 10.1 branch: $ glxinfo |grep OpenGL OpenGL vendor string: X.Org OpenGL renderer string: Gallium 0.4 on AMD RV730 OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.1.0-rc1 (git-1e6bba5) OpenGL core profile shading language version string: 3.30 OpenGL core profile context flags: (none) OpenGL core profile profile mask: core profile OpenGL core profile extensions: OpenGL version string: 3.0 Mesa 10.1.0-rc1 (git-1e6bba5) OpenGL shading language version string: 1.30 OpenGL context flags: (none) OpenGL extensions: Hardware is a Radeon HD 4650: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV730 PRO [Radeon HD 4650] (prog-if 00 [VGA controller])
Created attachment 93671 [details] good rendering with llvmpipe
Created attachment 93672 [details] artifacts with r600g
Created attachment 93673 [details] artifacts with r600g
Looks fine on Evergreen. This is probably specific to r600/r700 class hardware.
(In reply to comment #4) > Looks fine on Evergreen. This is probably specific to r600/r700 class > hardware. Looks fine on BARTS too.
BTW I've found another bug (failing assertion in mesa core on debug builds) when replaying your trace file (attachment 93670 [details]). see bug 74723
(In reply to comment #6) > BTW I've found another bug (failing assertion in mesa core on debug builds) > when replaying your trace file (attachment 93670 [details]). > see bug 74723 After the fix in c325ec896545cc909f2f0e359f0bb0513a8a53b5 I don't get any assertion with --enable-debug, only these messages: 669: glDebugOutputCallback: High severity Shader Compiler unknown issue 1, 0:2(12): warning: extension `GL_EXT_gpu_shader4' unsupported in geometry shader 673: glDebugOutputCallback: High severity Shader Compiler unknown issue 2, 0:2(12): warning: extension `GL_EXT_gpu_shader4' unsupported in fragment shader
Is this still a problem for you? Looks very similar as mesa-demos/glsl/geom-outlining-150 on my RV730 AGP. I have a geom-outlining-150-shader.log with R600_DEBUG=gs,vs,fs,ps if needed.
(In reply to Dieter Nützel from comment #8) > Is this still a problem for you? > > Looks very similar as mesa-demos/glsl/geom-outlining-150 on my RV730 AGP. > I have a geom-outlining-150-shader.log with R600_DEBUG=gs,vs,fs,ps if needed. Stays this for you? 'cause my reported 'mesa-demos/glsl/geom-outlining-150' artifacts are SOLVED, now. Have a look at: https://bugs.freedesktop.org/show_bug.cgi?id=83319#c11
Thanks, I confirm this works for me: OpenGL renderer string: Gallium 0.4 on AMD RV730 (DRM 2.48.0 / 4.9.0_3, LLVM 3.9.0) OpenGL core profile version string: 3.3 (Core Profile) Mesa 13.0.2
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