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draw: fix fog coord export. 

This does what we do in the hw drivers, and only export the X.

fixes the fogcoord.dp* tests.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2012-01-28 18:29:18 +00:00
parent f8be4f33d3
commit fa2a76a21c
1 changed files with 6 additions and 1 deletions
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7
src/gallium/auxiliary/draw/draw_vs_exec.c
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@ -168,7 +168,12 @@ vs_exec_run_linear( struct draw_vertex_shader *shader,
output[slot][2] = CLAMP(machine->Outputs[slot].xyzw[2].f[j], 0.0f, 1.0f);
output[slot][3] = CLAMP(machine->Outputs[slot].xyzw[3].f[j], 0.0f, 1.0f);
}
else
else if (name == TGSI_SEMANTIC_FOG) {
output[slot][0] = machine->Outputs[slot].xyzw[0].f[j];
output[slot][1] = 0;
output[slot][2] = 0;
output[slot][3] = 1;
} else
{
output[slot][0] = machine->Outputs[slot].xyzw[0].f[j];
output[slot][1] = machine->Outputs[slot].xyzw[1].f[j];