src/glsl/ir_builder.cpp

   1 /*
   2  * Copyright © 2012 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #include "ir_builder.h"
  25
  26 using namespace ir_builder;
  27
  28 namespace ir_builder {
  29
  30 ir_expression *
  31 expr(ir_expression_operation op,
  32      ir_rvalue *a, ir_rvalue *b)
  33 {
  34    void *mem_ctx = ralloc_parent(a);
  35
  36    return new(mem_ctx) ir_expression(op, a, b);
  37 }
  38
  39 ir_expression *add(ir_rvalue *a, ir_rvalue *b)
  40 {
  41    return expr(ir_binop_add, a, b);
  42 }
  43
  44 ir_expression *sub(ir_rvalue *a, ir_rvalue *b)
  45 {
  46    return expr(ir_binop_sub, a, b);
  47 }
  48
  49 ir_expression *mul(ir_rvalue *a, ir_rvalue *b)
  50 {
  51    return expr(ir_binop_mul, a, b);
  52 }
  53
  54 ir_expression *dot(ir_rvalue *a, ir_rvalue *b)
  55 {
  56    return expr(ir_binop_dot, a, b);
  57 }
  58
  59 ir_expression *
  60 saturate(ir_rvalue *a)
  61 {
  62    void *mem_ctx = ralloc_parent(a);
  63
  64    return expr(ir_binop_max,
  65                expr(ir_binop_min, a, new(mem_ctx) ir_constant(1.0f)),
  66                new(mem_ctx) ir_constant(0.0f));
  67 }
  68
  69 } /* namespace ir_builder */