https://bugs.freedesktop.org/show_bug.cgi?id=47955

--- Comment #2 from Andrew Randrianasulu randrik@mail.ru 2012-03-27 10:47:05 PDT --- Created attachment 59121 --> https://bugs.freedesktop.org/attachment.cgi?id=59121 lspci -vvvn

https://bugs.freedesktop.org/show_bug.cgi?id=47955

Marek Olšák maraeo@gmail.com changed:

What |Removed |Added ---------------------------------------------------------------------------- Component|Drivers/DRI/r300 |Drivers/Gallium/r300

--- Comment #3 from Andrew Randrianasulu randrik@mail.ru 2012-03-27 10:48:04 PDT --- Created attachment 59122 --> https://bugs.freedesktop.org/attachment.cgi?id=59122 X.org log

https://bugs.freedesktop.org/show_bug.cgi?id=47955

--- Comment #5 from Andrew Randrianasulu randrik@mail.ru 2012-03-27 10:49:41 PDT --- Created attachment 59124 --> https://bugs.freedesktop.org/attachment.cgi?id=59124 rs600's rom (from sysfs)

https://bugs.freedesktop.org/show_bug.cgi?id=47955

--- Comment #7 from Andrew Randrianasulu randrik@mail.ru 2012-03-27 11:24:08 PDT --- Mesa was compiled with ./configure --prefix=/usr/X11R7 --disable-egl --enable-gallium-llvm --with-gallium-drivers=i915 nouveau r600 r300 swrast --enable-texture-float --with-dri-drivers=i965 r200 radeon nouveau --enable-shared-glapi --enable-gallium-g3dvl --enable-vdpau --enable-debug

Gallium libs - version 2.9. (I tried DRAW_NO_LLVM=1 - bug was still there). llvmpipe renders Celestia's window correctly in all modes.

https://bugs.freedesktop.org/show_bug.cgi?id=47955

--- Comment #9 from Andrew Randrianasulu randrik@mail.ru 2012-03-27 23:17:54 PDT --- as far as I can see in celestia-1.6.1/src/celengine/render.cpp (function void Renderer::PointStarVertexBuffer::startSprites() ) - it uses some combination of GL_ARB_point_sprite and vertex shaders .... Any ideas what can fail with this combo on rs600 ?

----------------------------

void Renderer::PointStarVertexBuffer::startSprites(const GLContext& _context) { context = &_context; assert(context->getVertexProcessor() != NULL || !useSprites); // vertex shaders required for new star rendering

unsigned int stride = sizeof(StarVertex); glEnableClientState(GL_VERTEX_ARRAY); glVertexPointer(3, GL_FLOAT, stride, &vertices[0].position); glEnableClientState(GL_COLOR_ARRAY); glColorPointer(4, GL_UNSIGNED_BYTE, stride, &vertices[0].color);

VertexProcessor* vproc = context->getVertexProcessor(); vproc->enable(); vproc->use(vp::starDisc); vproc->enableAttribArray(6); vproc->attribArray(6, 1, GL_FLOAT, stride, &vertices[0].size);

glDisableClientState(GL_TEXTURE_COORD_ARRAY); glDisableClientState(GL_NORMAL_ARRAY);

glEnable(GL_POINT_SPRITE_ARB); glTexEnvi(GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, GL_TRUE);

useSprites = true; } --------------------------------------------

Any piglit test?

https://bugs.freedesktop.org/show_bug.cgi?id=47955

--- Comment #11 from Andrew Randrianasulu randrik@mail.ru 2012-03-28 00:06:42 PDT --- Or http://cgit.freedesktop.org/mesa/mesa/commit/?id=1a69b50b3b441ce8f7a00af3a7f...

Namely calls to

draw_create_fragment_shader() and draw_bind_fragment_shader() , probably they should go into 300_state.c, r300_{create|bind}_fs_state ?

https://bugs.freedesktop.org/show_bug.cgi?id=47955

--- Comment #13 from Andrew Randrianasulu randrik@mail.ru 2012-03-28 11:04:52 PDT --- (In reply to comment #12)

(In reply to comment #7)

...

(I tried DRAW_NO_LLVM=1 - bug was still there).

FWIW, that's not a recognized environment variable. You probably meant DRAW_USE_LLVM=0.

Yes, sorry. Tried twice with DRAW_USE_LLVM=0 - bug still here. I'll try to patch driver with my idea above and see if it will fix this bug ...

https://bugs.freedesktop.org/show_bug.cgi?id=47955

--- Comment #15 from Andrew Randrianasulu randrik@mail.ru 2012-03-29 20:54:13 PDT --- .. and spriteblast mesa demo surely don't work correctly here. (I see something remotely like _giant_ sprites flashing on screen)

https://bugs.freedesktop.org/show_bug.cgi?id=47955

--- Comment #17 from Andrew Randrianasulu randrik@mail.ru 2012-03-30 09:38:25 PDT --- (In reply to comment #16)

Is this bug present in Mesa 8.0 and if yes, is it present in 7.11 as well?

yes, at minimum in 8.0 and 7.11 git _branches_. With 7.11 it was a bit unstable - but bug still around, both for celestia and pointblast/spriteblast mesa demos.

https://bugs.freedesktop.org/show_bug.cgi?id=47955

--- Comment #19 from Marek Olšák maraeo@gmail.com 2012-04-04 14:01:00 PDT --- I know. The vertex shader point size output is broken on SWTCL chipsets (piglit/glsl-vs-point-size fails randomly). I haven't been able to find the cause yet.