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ir_to_mesa: Add exp/log expression operations.

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This commit is contained in:
Eric Anholt 2010-05-06 13:20:44 -07:00
parent 829e0a8eff
commit 8c29a1d84d
2 changed files with 44 additions and 0 deletions
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12
ir_to_mesa.cpp
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@ -319,6 +319,18 @@ ir_to_mesa_visitor::visit(ir_expression *ir)
this->result = NULL;
switch (ir->operation) {
case ir_unop_exp:
this->result = this->create_tree(MB_TERM_exp_vec4, ir, op[0], NULL);
break;
case ir_unop_exp2:
this->result = this->create_tree(MB_TERM_exp2_vec4, ir, op[0], NULL);
break;
case ir_unop_log:
this->result = this->create_tree(MB_TERM_log_vec4, ir, op[0], NULL);
break;
case ir_unop_log2:
this->result = this->create_tree(MB_TERM_log2_vec4, ir, op[0], NULL);
break;
case ir_binop_add:
this->result = this->create_tree(MB_TERM_add_vec4_vec4, ir, op[0], op[1]);
break;

32
mesa_codegen.brg
View file

@ -48,6 +48,10 @@
# generate in its trees.
%term assign
%term reference_vec4
%term exp_vec4
%term exp2_vec4
%term log_vec4
%term log2_vec4
%term add_vec4_vec4
%term sub_vec4_vec4
%term mul_vec4_vec4
@ -205,4 +209,32 @@ vec4: sqrt_vec4(vec4) 1
tree->src_reg);
}
vec4: exp_vec4(vec4) 1
{
ir_to_mesa_emit_scalar_op1(tree, OPCODE_EXP,
tree->dst_reg,
tree->left->src_reg);
}
vec4: exp2_vec4(vec4) 1
{
ir_to_mesa_emit_scalar_op1(tree, OPCODE_EX2,
tree->dst_reg,
tree->left->src_reg);
}
vec4: log_vec4(vec4) 1
{
ir_to_mesa_emit_scalar_op1(tree, OPCODE_LOG,
tree->dst_reg,
tree->left->src_reg);
}
vec4: log2_vec4(vec4) 1
{
ir_to_mesa_emit_scalar_op1(tree, OPCODE_LG2,
tree->dst_reg,
tree->left->src_reg);
}
%%