There is a restriction on the destination of an operation involving a
vector immediate being 128-bit aligned and the destination horizontal
stride being equivalent to 2 bytes. Fixes bad pixel_x results from
gl_FragCoord, where each pair had the same value.
this->current_annotation = "compute pixel centers";
this->pixel_x = fs_reg(this, glsl_type::uint_type);
this->pixel_y = fs_reg(this, glsl_type::uint_type);
+ this->pixel_x.type = BRW_REGISTER_TYPE_UW;
+ this->pixel_y.type = BRW_REGISTER_TYPE_UW;
emit(fs_inst(BRW_OPCODE_ADD,
this->pixel_x,
fs_reg(stride(suboffset(g1_uw, 4), 2, 4, 0)),