[Mesa3d-users] Strangle crash with Mesa 6.4.2

[Sandor H. <san...@cs...>]

Hi There,

I am new to Mesa / OpenGL (doing C++ and mainly Qt GUI coding for quite 
a while). I received a legacy code on which I made quite some changes on 
Windows where it runs fine. I compiled on Linux (SuSE Enterprise 10.2) 
and found that it asserts with the following error message in the 
command line:
brw_try_draw_prims failed
fastflo: brw_save_api.c:1616: brw_save_EndList: Assertion 
`save->vertex_size == 0' failed.
Abort

Wondering what could be wrong I tracked down that the line causing the 
assertion is actually the following:
    GLfloat a[4][3], GLfloat c[4][3];
    //... values settings
    FOR0(i, 4) {
        glColor3f(c[i][0], c[i][1], c[i][2]);
        glVertex3f(a[i][0], a[i][1], a[i][2]);   // This is the one; no 
problem if removed
    }

I printed the values set in glVertex3f below. I am not quite sure if 
those cause the assertion or something else so I would be happy to get 
some clues. I understand that 6.4.2 is not the latest; I use that 
because that is supported with the O/S. I can probably change that if 
that is the cause.

Cheers,
Sandor


glVertex3f a[0][0]: 0.000000, a[0][1]: 207.999985, a[0][2]: 0.000000
glVertex3f a[1][0]: 0.000000, a[1][1]: 199.999985, a[1][2]: 0.000000
glVertex3f a[2][0]: 27.146816, a[2][1]: 199.999985, a[2][2]: 0.000000
glVertex3f a[3][0]: 27.146816, a[3][1]: 207.999985, a[3][2]: 0.000000

glVertex3f a[0][0]: 27.146816, a[0][1]: 207.999985, a[0][2]: 0.000000
glVertex3f a[1][0]: 27.146816, a[1][1]: 199.999985, a[1][2]: 0.000000
glVertex3f a[2][0]: 81.432472, a[2][1]: 199.999985, a[2][2]: 0.000000
glVertex3f a[3][0]: 81.432472, a[3][1]: 207.999985, a[3][2]: 0.000000

glVertex3f a[0][0]: 81.432472, a[0][1]: 207.999985, a[0][2]: 0.000000
glVertex3f a[1][0]: 81.432472, a[1][1]: 199.999985, a[1][2]: 0.000000
glVertex3f a[2][0]: 135.718124, a[2][1]: 199.999985, a[2][2]: 0.000000
glVertex3f a[3][0]: 135.718124, a[3][1]: 207.999985, a[3][2]: 0.000000

glVertex3f a[0][0]: 135.718124, a[0][1]: 207.999985, a[0][2]: 0.000000
glVertex3f a[1][0]: 135.718124, a[1][1]: 199.999985, a[1][2]: 0.000000
glVertex3f a[2][0]: 162.860764, a[2][1]: 199.999985, a[2][2]: 0.000000
glVertex3f a[3][0]: 162.860764, a[3][1]: 207.999985, a[3][2]: 0.000000

glVertex3f a[0][0]: 162.860764, a[0][1]: 207.999985, a[0][2]: 0.000000
glVertex3f a[1][0]: 162.860764, a[1][1]: 199.999985, a[1][2]: 0.000000
glVertex3f a[2][0]: 217.146820, a[2][1]: 199.999985, a[2][2]: 0.000000
glVertex3f a[3][0]: 217.146820, a[3][1]: 207.999985, a[3][2]: 0.000000

glVertex3f a[0][0]: 217.146820, a[0][1]: 207.999985, a[0][2]: 0.000000
glVertex3f a[1][0]: 217.146820, a[1][1]: 199.999985, a[1][2]: 0.000000
glVertex3f a[2][0]: 271.432465, a[2][1]: 199.999985, a[2][2]: 0.000000
glVertex3f a[3][0]: 271.432465, a[3][1]: 207.999985, a[3][2]: 0.000000

glVertex3f a[0][0]: 271.432465, a[0][1]: 207.999985, a[0][2]: 0.000000
glVertex3f a[1][0]: 271.432465, a[1][1]: 199.999985, a[1][2]: 0.000000
glVertex3f a[2][0]: 379.999969, a[2][1]: 199.999985, a[2][2]: 0.000000
glVertex3f a[3][0]: 379.999969, a[3][1]: 207.999985, a[3][2]: 0.000000