[Bug 47955] Celestia hit fallback on r300g from git?

[bugzilla-daemon at freedesktop.org]

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

--- Comment #9 from Andrew Randrianasulu <randrik at 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?

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