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| author | Brian Paul <brian.paul@tungstengraphics.com> | 2008-05-18 15:41:36 -0600 |
|---|---|---|
| committer | Brian Paul <brian.paul@tungstengraphics.com> | 2008-05-18 15:41:36 -0600 |
| commit | 5976a6a75cfa6749db306111a601d99c99cc00a4 (patch) | |
| tree | b4b1c595d630dc301d9922889a72171d2d80ac39 /src | |
| parent | 4b6b0fd526b16d70bb5d1acc8d93af280660c810 (diff) | |
added div by zero check for Fog.End/Start (from gallium-0.1)
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/shader/prog_statevars.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/mesa/shader/prog_statevars.c b/src/mesa/shader/prog_statevars.c index 4ae74c1d42..72bdad7654 100644 --- a/src/mesa/shader/prog_statevars.c +++ b/src/mesa/shader/prog_statevars.c @@ -253,7 +253,8 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[], value[0] = ctx->Fog.Density; value[1] = ctx->Fog.Start; value[2] = ctx->Fog.End; - value[3] = 1.0F / (ctx->Fog.End - ctx->Fog.Start); + value[3] = (ctx->Fog.End == ctx->Fog.Start) + ? 1.0 : 1.0F / (ctx->Fog.End - ctx->Fog.Start); return; case STATE_CLIPPLANE: { |