diff options
| author | Paul Berry <stereotype441@gmail.com> | 2012-06-21 11:33:22 -0700 |
|---|---|---|
| committer | Paul Berry <stereotype441@gmail.com> | 2012-06-25 11:03:26 -0700 |
| commit | cf0e7aa9f8bc9c175ebd9b2ab3a8bfec4afc5abf (patch) | |
| tree | 1ec3dfd1a40f87d8f7bc959870ff6462b3905523 | |
| parent | 6d7ebb21f8848a4a407e458e2772a45f9c3bd28a (diff) | |
i965/fs: Refactor interpolation code to prepare for adding centroid support.
Reviewed-by: Eric Anholt <eric@anholt.net>
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs.cpp | 23 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs.h | 2 |
2 files changed, 17 insertions, 8 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp index 43efd68e2c4..c3f851e615c 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp @@ -419,6 +419,20 @@ fs_visitor::emit_fragcoord_interpolation(ir_variable *ir) return reg; } +fs_inst * +fs_visitor::emit_linterp(const fs_reg &attr, const fs_reg &interp, + glsl_interp_qualifier interpolation_mode) +{ + brw_wm_barycentric_interp_mode barycoord_mode; + if (interpolation_mode == INTERP_QUALIFIER_SMOOTH) + barycoord_mode = BRW_WM_PERSPECTIVE_PIXEL_BARYCENTRIC; + else + barycoord_mode = BRW_WM_NONPERSPECTIVE_PIXEL_BARYCENTRIC; + return emit(FS_OPCODE_LINTERP, attr, + this->delta_x[barycoord_mode], + this->delta_y[barycoord_mode], interp); +} + fs_reg * fs_visitor::emit_general_interpolation(ir_variable *ir) { @@ -482,14 +496,7 @@ fs_visitor::emit_general_interpolation(ir_variable *ir) emit(BRW_OPCODE_MOV, attr, fs_reg(1.0f)); } else { struct brw_reg interp = interp_reg(location, k); - brw_wm_barycentric_interp_mode barycoord_mode; - if (interpolation_mode == INTERP_QUALIFIER_SMOOTH) - barycoord_mode = BRW_WM_PERSPECTIVE_PIXEL_BARYCENTRIC; - else - barycoord_mode = BRW_WM_NONPERSPECTIVE_PIXEL_BARYCENTRIC; - emit(FS_OPCODE_LINTERP, attr, - this->delta_x[barycoord_mode], - this->delta_y[barycoord_mode], fs_reg(interp)); + emit_linterp(attr, fs_reg(interp), interpolation_mode); if (intel->gen < 6) { emit(BRW_OPCODE_MUL, attr, attr, this->pixel_w); } diff --git a/src/mesa/drivers/dri/i965/brw_fs.h b/src/mesa/drivers/dri/i965/brw_fs.h index 2c2cb6cbf7c..3e62d12d2af 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.h +++ b/src/mesa/drivers/dri/i965/brw_fs.h @@ -542,6 +542,8 @@ public: void emit_dummy_fs(); fs_reg *emit_fragcoord_interpolation(ir_variable *ir); + fs_inst *emit_linterp(const fs_reg &attr, const fs_reg &interp, + glsl_interp_qualifier interpolation_mode); fs_reg *emit_frontfacing_interpolation(ir_variable *ir); fs_reg *emit_general_interpolation(ir_variable *ir); void emit_interpolation_setup_gen4(); |