diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_fs.cpp')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs.cpp | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp index 78ddf0d99cf..430a530d242 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp @@ -998,7 +998,7 @@ fs_visitor::emit_fragcoord_interpolation(ir_variable *ir) fs_inst * fs_visitor::emit_linterp(const fs_reg &attr, const fs_reg &interp, glsl_interp_qualifier interpolation_mode, - bool is_centroid) + bool is_centroid, bool is_sample) { brw_wm_barycentric_interp_mode barycoord_mode; if (brw->gen >= 6) { @@ -1007,6 +1007,11 @@ fs_visitor::emit_linterp(const fs_reg &attr, const fs_reg &interp, barycoord_mode = BRW_WM_PERSPECTIVE_CENTROID_BARYCENTRIC; else barycoord_mode = BRW_WM_NONPERSPECTIVE_CENTROID_BARYCENTRIC; + } else if (is_sample) { + if (interpolation_mode == INTERP_QUALIFIER_SMOOTH) + barycoord_mode = BRW_WM_PERSPECTIVE_SAMPLE_BARYCENTRIC; + else + barycoord_mode = BRW_WM_NONPERSPECTIVE_SAMPLE_BARYCENTRIC; } else { if (interpolation_mode == INTERP_QUALIFIER_SMOOTH) barycoord_mode = BRW_WM_PERSPECTIVE_PIXEL_BARYCENTRIC; @@ -1084,7 +1089,8 @@ fs_visitor::emit_general_interpolation(ir_variable *ir) */ struct brw_reg interp = interp_reg(location, k); emit_linterp(attr, fs_reg(interp), interpolation_mode, - ir->data.centroid); + ir->data.centroid, + ir->data.sample || c->key.persample_shading); if (brw->needs_unlit_centroid_workaround && ir->data.centroid) { /* Get the pixel/sample mask into f0 so that we know * which pixels are lit. Then, for each channel that is @@ -1093,7 +1099,8 @@ fs_visitor::emit_general_interpolation(ir_variable *ir) */ emit(FS_OPCODE_MOV_DISPATCH_TO_FLAGS); fs_inst *inst = emit_linterp(attr, fs_reg(interp), - interpolation_mode, false); + interpolation_mode, + false, false); inst->predicate = BRW_PREDICATE_NORMAL; inst->predicate_inverse = true; } |