From: Ian Romanick <ian.d.roman...@intel.com> The new opcode is used to generate a new vector with a single field from the source vector replaced. This will eventually replace ir_dereference_array of vectors in the LHS of assignments.
Signed-off-by: Ian Romanick <ian.d.roman...@intel.com> --- src/glsl/ir.cpp | 1 + src/glsl/ir.h | 11 ++++++++++- src/glsl/ir_validate.cpp | 9 +++++++++ src/mesa/program/ir_to_mesa.cpp | 1 + 4 files changed, 21 insertions(+), 1 deletion(-) diff --git a/src/glsl/ir.cpp b/src/glsl/ir.cpp index f4596db..336ff95 100644 --- a/src/glsl/ir.cpp +++ b/src/glsl/ir.cpp @@ -511,6 +511,7 @@ static const char *const operator_strs[] = { "ubo_load", "vector_extract", "lrp", + "vector_insert", "vector", }; diff --git a/src/glsl/ir.h b/src/glsl/ir.h index 4da54fc..7106cde 100644 --- a/src/glsl/ir.h +++ b/src/glsl/ir.h @@ -1130,9 +1130,18 @@ enum ir_expression_operation { ir_triop_lrp, /** + * Generate a value with one field of a vector changed + * + * operand0 is the vector + * operand1 is the value to write into the vector result + * operand2 is the index in operand0 to be modified + */ + ir_triop_vector_insert, + + /** * A sentinel marking the last of the ternary operations. */ - ir_last_triop = ir_triop_lrp, + ir_last_triop = ir_triop_vector_insert, ir_quadop_vector, diff --git a/src/glsl/ir_validate.cpp b/src/glsl/ir_validate.cpp index 83519cf..f304af4 100644 --- a/src/glsl/ir_validate.cpp +++ b/src/glsl/ir_validate.cpp @@ -480,6 +480,15 @@ ir_validate::visit_leave(ir_expression *ir) assert(ir->operands[2]->type == ir->operands[0]->type || ir->operands[2]->type == glsl_type::float_type); break; + case ir_triop_vector_insert: + assert(ir->operands[0]->type->is_vector()); + assert(ir->operands[1]->type->is_scalar()); + assert(ir->operands[0]->type->base_type == ir->operands[1]->type->base_type); + assert(ir->operands[2]->type->is_scalar() + && ir->operands[2]->type->is_integer()); + assert(ir->type == ir->operands[0]->type); + break; + case ir_quadop_vector: /* The vector operator collects some number of scalars and generates a * vector from them. diff --git a/src/mesa/program/ir_to_mesa.cpp b/src/mesa/program/ir_to_mesa.cpp index 7d351c0..eb64347 100644 --- a/src/mesa/program/ir_to_mesa.cpp +++ b/src/mesa/program/ir_to_mesa.cpp @@ -1486,6 +1486,7 @@ ir_to_mesa_visitor::visit(ir_expression *ir) break; case ir_binop_vector_extract: + case ir_triop_vector_insert: case ir_quadop_vector: /* This operation should have already been handled. */ -- 1.8.1.4 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev