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mesa/st: get interpolation mode from the fragment shader.

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With the recent changes to interpolation stuff, we can now get the value
direct from the program instead of just being fail.

fixes some of the glsl-1.30 interpolation tests with softpipe

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie
2011-10-28 17:18:15 +01:00
parent 25620eb1d2
commit 4dfee0011a
1 changed files with 15 additions and 1 deletions
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16
src/mesa/state_tracker/st_program.c
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@@ -416,6 +416,20 @@ st_get_vp_variant(struct st_context *st,
return vpv;
}
static int st_translate_interp(enum glsl_interp_qualifier glsl_qual)
{
switch (glsl_qual) {
case INTERP_QUALIFIER_NONE:
case INTERP_QUALIFIER_SMOOTH:
return TGSI_INTERPOLATE_PERSPECTIVE;
case INTERP_QUALIFIER_FLAT:
return TGSI_INTERPOLATE_CONSTANT;
case INTERP_QUALIFIER_NOPERSPECTIVE:
return TGSI_INTERPOLATE_LINEAR;
}
assert(0);
return TGSI_INTERPOLATE_PERSPECTIVE;
}
/**
* Translate a Mesa fragment shader into a TGSI shader using extra info in
@@ -558,7 +572,7 @@ st_translate_fragment_program(struct st_context *st,
if (attr == FRAG_ATTRIB_PNTC)
interpMode[slot] = TGSI_INTERPOLATE_LINEAR;
else
interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE;
interpMode[slot] = st_translate_interp(stfp->Base.InterpQualifier[attr]);
break;
}
}