diff options
| -rw-r--r-- | src/mesa/drivers/dri/i915/i915_fragprog.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/src/mesa/drivers/dri/i915/i915_fragprog.c b/src/mesa/drivers/dri/i915/i915_fragprog.c index e19ca60bd33..3657b2d8256 100644 --- a/src/mesa/drivers/dri/i915/i915_fragprog.c +++ b/src/mesa/drivers/dri/i915/i915_fragprog.c @@ -1252,12 +1252,10 @@ i915ValidateFragmentProgram(struct i915_context *i915) intel->coloroffset = 0; intel->specoffset = 0; - if (inputsRead & VARYING_BITS_TEX_ANY || p->wpos_tex != I915_WPOS_TEX_INVALID) { - EMIT_ATTR(_TNL_ATTRIB_POS, EMIT_4F_VIEWPORT, S4_VFMT_XYZW, 16); - } - else { - EMIT_ATTR(_TNL_ATTRIB_POS, EMIT_3F_VIEWPORT, S4_VFMT_XYZ, 12); - } + /* Always emit W to get consistent perspective + * correct interpolation of primary/secondary colors. + */ + EMIT_ATTR(_TNL_ATTRIB_POS, EMIT_4F_VIEWPORT, S4_VFMT_XYZW, 16); /* Handle gl_PointSize builtin var here */ if (ctx->Point._Attenuated || ctx->VertexProgram.PointSizeEnabled) |