r5xx: Enable fog options.

This uses fog HW instead of fragment programs.
If it breaks you, let me know!

diff --git a/src/mesa/drivers/dri/r300/r300_state.c b/src/mesa/drivers/dri/r300/r300_state.c
index cce07d3..d71e4f6 100644 (file)
--- a/src/mesa/drivers/dri/r300/r300_state.c
+++ b/src/mesa/drivers/dri/r300/r300_state.c
@@ -2622,6 +2622,14 @@ static void r500SetupPixelShader(r300ContextPtr rmesa)
        }
        code = &fp->code;
 
+       if (fp->mesa_program.FogOption != GL_NONE) {
+               /* Enable HW fog.
+                * (Anybody sane remembered to set glFog() opts first! */
+               ctx->Fog.Enabled = GL_TRUE;
+               ctx->Fog.Mode = fp->mesa_program.FogOption;
+               r300SetFogState(ctx, GL_TRUE);
+       }
+
        r300SetupTextures(ctx);
 
        R300_STATECHANGE(rmesa, fp);