diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs_visitor.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp index 9632aae64b0..b82dfd5ead4 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp @@ -622,6 +622,8 @@ fs_visitor::emit_texture_gen4(ir_texture *ir, fs_reg dst, fs_reg coordinate, * dPdx = dudx, dvdx, drdx * dPdy = dudy, dvdy, drdy * + * 1-arg: Does not exist. + * * 2-arg: dudx dvdx dudy dvdy * dPdx.x dPdx.y dPdy.x dPdy.y * m4 m5 m6 m7 @@ -633,14 +635,14 @@ fs_visitor::emit_texture_gen4(ir_texture *ir, fs_reg dst, fs_reg coordinate, for (int i = 0; i < ir->lod_info.grad.dPdx->type->vector_elements; i++) { emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), dPdx); dPdx.reg_offset++; - mlen++; } + mlen += MAX2(ir->lod_info.grad.dPdx->type->vector_elements, 2); for (int i = 0; i < ir->lod_info.grad.dPdy->type->vector_elements; i++) { emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen), dPdy); dPdy.reg_offset++; - mlen++; } + mlen += MAX2(ir->lod_info.grad.dPdy->type->vector_elements, 2); } else { /* Oh joy. gen4 doesn't have SIMD8 non-shadow-compare bias/lod * instructions. We'll need to do SIMD16 here. |