2 * Copyright © 2012 Intel Corporation
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:
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
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
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20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
24 #include "ir_builder.h"
25 #include "program/prog_instruction.h"
27 using namespace ir_builder;
29 namespace ir_builder {
32 ir_factory::emit(ir_instruction *ir)
34 instructions->push_tail(ir);
38 ir_factory::make_temp(const glsl_type *type, const char *name)
42 var = new(mem_ctx) ir_variable(type, name, ir_var_temporary);
49 assign(deref lhs, operand rhs, int writemask)
51 void *mem_ctx = ralloc_parent(lhs.val);
53 ir_assignment *assign = new(mem_ctx) ir_assignment(lhs.val,
61 assign(deref lhs, operand rhs)
63 return assign(lhs, rhs, (1 << lhs.val->type->vector_elements) - 1);
67 swizzle(operand a, int swizzle, int components)
69 void *mem_ctx = ralloc_parent(a.val);
71 return new(mem_ctx) ir_swizzle(a.val,
80 swizzle_for_size(operand a, int components)
82 void *mem_ctx = ralloc_parent(a.val);
84 if (a.val->type->vector_elements < components)
85 components = a.val->type->vector_elements;
87 unsigned s[4] = { 0, 1, 2, 3 };
88 for (int i = components; i < 4; i++)
89 s[i] = components - 1;
91 return new(mem_ctx) ir_swizzle(a.val, s, components);
95 swizzle_xxxx(operand a)
97 return swizzle(a, SWIZZLE_XXXX, 4);
101 swizzle_yyyy(operand a)
103 return swizzle(a, SWIZZLE_YYYY, 4);
107 swizzle_zzzz(operand a)
109 return swizzle(a, SWIZZLE_ZZZZ, 4);
113 swizzle_wwww(operand a)
115 return swizzle(a, SWIZZLE_WWWW, 4);
121 return swizzle(a, SWIZZLE_XXXX, 1);
127 return swizzle(a, SWIZZLE_YYYY, 1);
133 return swizzle(a, SWIZZLE_ZZZZ, 1);
139 return swizzle(a, SWIZZLE_WWWW, 1);
143 swizzle_xy(operand a)
145 return swizzle(a, SWIZZLE_XYZW, 2);
149 swizzle_xyz(operand a)
151 return swizzle(a, SWIZZLE_XYZW, 3);
155 swizzle_xyzw(operand a)
157 return swizzle(a, SWIZZLE_XYZW, 4);
161 expr(ir_expression_operation op, operand a)
163 void *mem_ctx = ralloc_parent(a.val);
165 return new(mem_ctx) ir_expression(op, a.val);
169 expr(ir_expression_operation op, operand a, operand b)
171 void *mem_ctx = ralloc_parent(a.val);
173 return new(mem_ctx) ir_expression(op, a.val, b.val);
176 ir_expression *add(operand a, operand b)
178 return expr(ir_binop_add, a, b);
181 ir_expression *sub(operand a, operand b)
183 return expr(ir_binop_sub, a, b);
186 ir_expression *mul(operand a, operand b)
188 return expr(ir_binop_mul, a, b);
191 ir_expression *dot(operand a, operand b)
193 return expr(ir_binop_dot, a, b);
199 void *mem_ctx = ralloc_parent(a.val);
201 return expr(ir_binop_max,
202 expr(ir_binop_min, a, new(mem_ctx) ir_constant(1.0f)),
203 new(mem_ctx) ir_constant(0.0f));
206 } /* namespace ir_builder */