344f94bb00
Bitshifts are one of the rare places that GLSL allows mixed base types without an implicit conversion occurring. Reviewed-by: Chad Versace <chad@chad-versace.us> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
1386 lines
43 KiB
C++
1386 lines
43 KiB
C++
/*
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* Copyright © 2010 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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/**
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* \file ir_constant_expression.cpp
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* Evaluate and process constant valued expressions
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*
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* In GLSL, constant valued expressions are used in several places. These
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* must be processed and evaluated very early in the compilation process.
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*
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* * Sizes of arrays
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* * Initializers for uniforms
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* * Initializers for \c const variables
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*/
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#include <math.h>
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#include "main/core.h" /* for MAX2, MIN2, CLAMP */
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#include "ir.h"
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#include "ir_visitor.h"
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#include "glsl_types.h"
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static float
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dot(ir_constant *op0, ir_constant *op1)
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{
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assert(op0->type->is_float() && op1->type->is_float());
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float result = 0;
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for (unsigned c = 0; c < op0->type->components(); c++)
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result += op0->value.f[c] * op1->value.f[c];
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return result;
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}
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ir_constant *
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ir_expression::constant_expression_value()
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{
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if (this->type->is_error())
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return NULL;
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ir_constant *op[Elements(this->operands)] = { NULL, };
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ir_constant_data data;
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memset(&data, 0, sizeof(data));
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for (unsigned operand = 0; operand < this->get_num_operands(); operand++) {
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op[operand] = this->operands[operand]->constant_expression_value();
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if (!op[operand])
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return NULL;
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}
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if (op[1] != NULL)
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assert(op[0]->type->base_type == op[1]->type->base_type ||
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this->operation == ir_binop_lshift ||
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this->operation == ir_binop_rshift);
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bool op0_scalar = op[0]->type->is_scalar();
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bool op1_scalar = op[1] != NULL && op[1]->type->is_scalar();
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/* When iterating over a vector or matrix's components, we want to increase
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* the loop counter. However, for scalars, we want to stay at 0.
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*/
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unsigned c0_inc = op0_scalar ? 0 : 1;
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unsigned c1_inc = op1_scalar ? 0 : 1;
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unsigned components;
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if (op1_scalar || !op[1]) {
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components = op[0]->type->components();
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} else {
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components = op[1]->type->components();
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}
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void *ctx = ralloc_parent(this);
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/* Handle array operations here, rather than below. */
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if (op[0]->type->is_array()) {
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assert(op[1] != NULL && op[1]->type->is_array());
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switch (this->operation) {
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case ir_binop_all_equal:
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return new(ctx) ir_constant(op[0]->has_value(op[1]));
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case ir_binop_any_nequal:
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return new(ctx) ir_constant(!op[0]->has_value(op[1]));
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default:
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break;
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}
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return NULL;
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}
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switch (this->operation) {
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case ir_unop_bit_not:
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switch (op[0]->type->base_type) {
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case GLSL_TYPE_INT:
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for (unsigned c = 0; c < components; c++)
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data.i[c] = ~ op[0]->value.i[c];
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break;
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case GLSL_TYPE_UINT:
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for (unsigned c = 0; c < components; c++)
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data.u[c] = ~ op[0]->value.u[c];
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break;
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default:
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assert(0);
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}
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break;
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case ir_unop_logic_not:
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assert(op[0]->type->base_type == GLSL_TYPE_BOOL);
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for (unsigned c = 0; c < op[0]->type->components(); c++)
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data.b[c] = !op[0]->value.b[c];
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break;
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case ir_unop_f2i:
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assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.i[c] = (int) op[0]->value.f[c];
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}
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break;
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case ir_unop_i2f:
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assert(op[0]->type->base_type == GLSL_TYPE_INT);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.f[c] = (float) op[0]->value.i[c];
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}
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break;
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case ir_unop_u2f:
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assert(op[0]->type->base_type == GLSL_TYPE_UINT);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.f[c] = (float) op[0]->value.u[c];
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}
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break;
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case ir_unop_b2f:
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assert(op[0]->type->base_type == GLSL_TYPE_BOOL);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.f[c] = op[0]->value.b[c] ? 1.0F : 0.0F;
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}
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break;
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case ir_unop_f2b:
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assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.b[c] = op[0]->value.f[c] != 0.0F ? true : false;
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}
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break;
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case ir_unop_b2i:
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assert(op[0]->type->base_type == GLSL_TYPE_BOOL);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.u[c] = op[0]->value.b[c] ? 1 : 0;
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}
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break;
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case ir_unop_i2b:
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assert(op[0]->type->is_integer());
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.b[c] = op[0]->value.u[c] ? true : false;
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}
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break;
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case ir_unop_u2i:
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assert(op[0]->type->base_type == GLSL_TYPE_UINT);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.i[c] = op[0]->value.u[c];
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}
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break;
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case ir_unop_i2u:
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assert(op[0]->type->base_type == GLSL_TYPE_INT);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.u[c] = op[0]->value.i[c];
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}
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break;
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case ir_unop_any:
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assert(op[0]->type->is_boolean());
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data.b[0] = false;
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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if (op[0]->value.b[c])
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data.b[0] = true;
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}
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break;
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case ir_unop_trunc:
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assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.f[c] = truncf(op[0]->value.f[c]);
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}
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break;
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case ir_unop_ceil:
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assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.f[c] = ceilf(op[0]->value.f[c]);
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}
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break;
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case ir_unop_floor:
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assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.f[c] = floorf(op[0]->value.f[c]);
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}
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break;
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case ir_unop_fract:
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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switch (this->type->base_type) {
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case GLSL_TYPE_UINT:
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data.u[c] = 0;
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break;
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case GLSL_TYPE_INT:
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data.i[c] = 0;
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break;
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case GLSL_TYPE_FLOAT:
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data.f[c] = op[0]->value.f[c] - floor(op[0]->value.f[c]);
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break;
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default:
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assert(0);
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}
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}
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break;
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case ir_unop_sin:
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case ir_unop_sin_reduced:
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assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.f[c] = sinf(op[0]->value.f[c]);
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}
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break;
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case ir_unop_cos:
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case ir_unop_cos_reduced:
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assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.f[c] = cosf(op[0]->value.f[c]);
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}
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break;
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case ir_unop_neg:
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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switch (this->type->base_type) {
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case GLSL_TYPE_UINT:
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data.u[c] = -((int) op[0]->value.u[c]);
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break;
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case GLSL_TYPE_INT:
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data.i[c] = -op[0]->value.i[c];
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break;
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case GLSL_TYPE_FLOAT:
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data.f[c] = -op[0]->value.f[c];
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break;
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default:
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assert(0);
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}
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}
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break;
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case ir_unop_abs:
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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switch (this->type->base_type) {
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case GLSL_TYPE_UINT:
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data.u[c] = op[0]->value.u[c];
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break;
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case GLSL_TYPE_INT:
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data.i[c] = op[0]->value.i[c];
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if (data.i[c] < 0)
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data.i[c] = -data.i[c];
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break;
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case GLSL_TYPE_FLOAT:
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data.f[c] = fabs(op[0]->value.f[c]);
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break;
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default:
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assert(0);
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}
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}
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break;
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case ir_unop_sign:
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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switch (this->type->base_type) {
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case GLSL_TYPE_UINT:
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data.u[c] = op[0]->value.i[c] > 0;
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break;
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case GLSL_TYPE_INT:
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data.i[c] = (op[0]->value.i[c] > 0) - (op[0]->value.i[c] < 0);
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break;
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case GLSL_TYPE_FLOAT:
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data.f[c] = float((op[0]->value.f[c] > 0)-(op[0]->value.f[c] < 0));
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break;
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default:
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assert(0);
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}
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}
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break;
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case ir_unop_rcp:
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assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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switch (this->type->base_type) {
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case GLSL_TYPE_UINT:
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if (op[0]->value.u[c] != 0.0)
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data.u[c] = 1 / op[0]->value.u[c];
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break;
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case GLSL_TYPE_INT:
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if (op[0]->value.i[c] != 0.0)
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data.i[c] = 1 / op[0]->value.i[c];
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break;
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case GLSL_TYPE_FLOAT:
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if (op[0]->value.f[c] != 0.0)
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data.f[c] = 1.0F / op[0]->value.f[c];
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break;
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default:
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assert(0);
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}
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}
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break;
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case ir_unop_rsq:
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assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.f[c] = 1.0F / sqrtf(op[0]->value.f[c]);
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}
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break;
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case ir_unop_sqrt:
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assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.f[c] = sqrtf(op[0]->value.f[c]);
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}
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break;
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case ir_unop_exp:
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assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.f[c] = expf(op[0]->value.f[c]);
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}
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break;
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case ir_unop_exp2:
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assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.f[c] = exp2f(op[0]->value.f[c]);
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}
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break;
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case ir_unop_log:
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assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.f[c] = logf(op[0]->value.f[c]);
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}
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break;
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case ir_unop_log2:
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assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.f[c] = log2f(op[0]->value.f[c]);
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}
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break;
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case ir_unop_dFdx:
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case ir_unop_dFdy:
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assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.f[c] = 0.0;
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}
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break;
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case ir_binop_pow:
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assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
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for (unsigned c = 0; c < op[0]->type->components(); c++) {
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data.f[c] = powf(op[0]->value.f[c], op[1]->value.f[c]);
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}
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break;
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case ir_binop_dot:
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data.f[0] = dot(op[0], op[1]);
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break;
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case ir_binop_min:
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assert(op[0]->type == op[1]->type || op0_scalar || op1_scalar);
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for (unsigned c = 0, c0 = 0, c1 = 0;
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c < components;
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c0 += c0_inc, c1 += c1_inc, c++) {
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switch (op[0]->type->base_type) {
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case GLSL_TYPE_UINT:
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data.u[c] = MIN2(op[0]->value.u[c0], op[1]->value.u[c1]);
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break;
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case GLSL_TYPE_INT:
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data.i[c] = MIN2(op[0]->value.i[c0], op[1]->value.i[c1]);
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break;
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case GLSL_TYPE_FLOAT:
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data.f[c] = MIN2(op[0]->value.f[c0], op[1]->value.f[c1]);
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break;
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default:
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assert(0);
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}
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}
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break;
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case ir_binop_max:
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assert(op[0]->type == op[1]->type || op0_scalar || op1_scalar);
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for (unsigned c = 0, c0 = 0, c1 = 0;
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c < components;
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c0 += c0_inc, c1 += c1_inc, c++) {
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switch (op[0]->type->base_type) {
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case GLSL_TYPE_UINT:
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data.u[c] = MAX2(op[0]->value.u[c0], op[1]->value.u[c1]);
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break;
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case GLSL_TYPE_INT:
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data.i[c] = MAX2(op[0]->value.i[c0], op[1]->value.i[c1]);
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break;
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case GLSL_TYPE_FLOAT:
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data.f[c] = MAX2(op[0]->value.f[c0], op[1]->value.f[c1]);
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break;
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default:
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assert(0);
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}
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}
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break;
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case ir_binop_add:
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assert(op[0]->type == op[1]->type || op0_scalar || op1_scalar);
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for (unsigned c = 0, c0 = 0, c1 = 0;
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c < components;
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|
c0 += c0_inc, c1 += c1_inc, c++) {
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switch (op[0]->type->base_type) {
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case GLSL_TYPE_UINT:
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data.u[c] = op[0]->value.u[c0] + op[1]->value.u[c1];
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break;
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case GLSL_TYPE_INT:
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data.i[c] = op[0]->value.i[c0] + op[1]->value.i[c1];
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break;
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case GLSL_TYPE_FLOAT:
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data.f[c] = op[0]->value.f[c0] + op[1]->value.f[c1];
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break;
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default:
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assert(0);
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}
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}
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break;
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case ir_binop_sub:
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|
assert(op[0]->type == op[1]->type || op0_scalar || op1_scalar);
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for (unsigned c = 0, c0 = 0, c1 = 0;
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c < components;
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c0 += c0_inc, c1 += c1_inc, c++) {
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|
|
switch (op[0]->type->base_type) {
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case GLSL_TYPE_UINT:
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data.u[c] = op[0]->value.u[c0] - op[1]->value.u[c1];
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break;
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case GLSL_TYPE_INT:
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data.i[c] = op[0]->value.i[c0] - op[1]->value.i[c1];
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break;
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case GLSL_TYPE_FLOAT:
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|
data.f[c] = op[0]->value.f[c0] - op[1]->value.f[c1];
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
|
|
break;
|
|
case ir_binop_mul:
|
|
/* Check for equal types, or unequal types involving scalars */
|
|
if ((op[0]->type == op[1]->type && !op[0]->type->is_matrix())
|
|
|| op0_scalar || op1_scalar) {
|
|
for (unsigned c = 0, c0 = 0, c1 = 0;
|
|
c < components;
|
|
c0 += c0_inc, c1 += c1_inc, c++) {
|
|
|
|
switch (op[0]->type->base_type) {
|
|
case GLSL_TYPE_UINT:
|
|
data.u[c] = op[0]->value.u[c0] * op[1]->value.u[c1];
|
|
break;
|
|
case GLSL_TYPE_INT:
|
|
data.i[c] = op[0]->value.i[c0] * op[1]->value.i[c1];
|
|
break;
|
|
case GLSL_TYPE_FLOAT:
|
|
data.f[c] = op[0]->value.f[c0] * op[1]->value.f[c1];
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
} else {
|
|
assert(op[0]->type->is_matrix() || op[1]->type->is_matrix());
|
|
|
|
/* Multiply an N-by-M matrix with an M-by-P matrix. Since either
|
|
* matrix can be a GLSL vector, either N or P can be 1.
|
|
*
|
|
* For vec*mat, the vector is treated as a row vector. This
|
|
* means the vector is a 1-row x M-column matrix.
|
|
*
|
|
* For mat*vec, the vector is treated as a column vector. Since
|
|
* matrix_columns is 1 for vectors, this just works.
|
|
*/
|
|
const unsigned n = op[0]->type->is_vector()
|
|
? 1 : op[0]->type->vector_elements;
|
|
const unsigned m = op[1]->type->vector_elements;
|
|
const unsigned p = op[1]->type->matrix_columns;
|
|
for (unsigned j = 0; j < p; j++) {
|
|
for (unsigned i = 0; i < n; i++) {
|
|
for (unsigned k = 0; k < m; k++) {
|
|
data.f[i+n*j] += op[0]->value.f[i+n*k]*op[1]->value.f[k+m*j];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
break;
|
|
case ir_binop_div:
|
|
/* FINISHME: Emit warning when division-by-zero is detected. */
|
|
assert(op[0]->type == op[1]->type || op0_scalar || op1_scalar);
|
|
for (unsigned c = 0, c0 = 0, c1 = 0;
|
|
c < components;
|
|
c0 += c0_inc, c1 += c1_inc, c++) {
|
|
|
|
switch (op[0]->type->base_type) {
|
|
case GLSL_TYPE_UINT:
|
|
if (op[1]->value.u[c1] == 0) {
|
|
data.u[c] = 0;
|
|
} else {
|
|
data.u[c] = op[0]->value.u[c0] / op[1]->value.u[c1];
|
|
}
|
|
break;
|
|
case GLSL_TYPE_INT:
|
|
if (op[1]->value.i[c1] == 0) {
|
|
data.i[c] = 0;
|
|
} else {
|
|
data.i[c] = op[0]->value.i[c0] / op[1]->value.i[c1];
|
|
}
|
|
break;
|
|
case GLSL_TYPE_FLOAT:
|
|
data.f[c] = op[0]->value.f[c0] / op[1]->value.f[c1];
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
|
|
break;
|
|
case ir_binop_mod:
|
|
/* FINISHME: Emit warning when division-by-zero is detected. */
|
|
assert(op[0]->type == op[1]->type || op0_scalar || op1_scalar);
|
|
for (unsigned c = 0, c0 = 0, c1 = 0;
|
|
c < components;
|
|
c0 += c0_inc, c1 += c1_inc, c++) {
|
|
|
|
switch (op[0]->type->base_type) {
|
|
case GLSL_TYPE_UINT:
|
|
if (op[1]->value.u[c1] == 0) {
|
|
data.u[c] = 0;
|
|
} else {
|
|
data.u[c] = op[0]->value.u[c0] % op[1]->value.u[c1];
|
|
}
|
|
break;
|
|
case GLSL_TYPE_INT:
|
|
if (op[1]->value.i[c1] == 0) {
|
|
data.i[c] = 0;
|
|
} else {
|
|
data.i[c] = op[0]->value.i[c0] % op[1]->value.i[c1];
|
|
}
|
|
break;
|
|
case GLSL_TYPE_FLOAT:
|
|
/* We don't use fmod because it rounds toward zero; GLSL specifies
|
|
* the use of floor.
|
|
*/
|
|
data.f[c] = op[0]->value.f[c0] - op[1]->value.f[c1]
|
|
* floorf(op[0]->value.f[c0] / op[1]->value.f[c1]);
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
|
|
break;
|
|
|
|
case ir_binop_logic_and:
|
|
assert(op[0]->type->base_type == GLSL_TYPE_BOOL);
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++)
|
|
data.b[c] = op[0]->value.b[c] && op[1]->value.b[c];
|
|
break;
|
|
case ir_binop_logic_xor:
|
|
assert(op[0]->type->base_type == GLSL_TYPE_BOOL);
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++)
|
|
data.b[c] = op[0]->value.b[c] ^ op[1]->value.b[c];
|
|
break;
|
|
case ir_binop_logic_or:
|
|
assert(op[0]->type->base_type == GLSL_TYPE_BOOL);
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++)
|
|
data.b[c] = op[0]->value.b[c] || op[1]->value.b[c];
|
|
break;
|
|
|
|
case ir_binop_less:
|
|
assert(op[0]->type == op[1]->type);
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++) {
|
|
switch (op[0]->type->base_type) {
|
|
case GLSL_TYPE_UINT:
|
|
data.b[0] = op[0]->value.u[0] < op[1]->value.u[0];
|
|
break;
|
|
case GLSL_TYPE_INT:
|
|
data.b[0] = op[0]->value.i[0] < op[1]->value.i[0];
|
|
break;
|
|
case GLSL_TYPE_FLOAT:
|
|
data.b[0] = op[0]->value.f[0] < op[1]->value.f[0];
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
break;
|
|
case ir_binop_greater:
|
|
assert(op[0]->type == op[1]->type);
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++) {
|
|
switch (op[0]->type->base_type) {
|
|
case GLSL_TYPE_UINT:
|
|
data.b[c] = op[0]->value.u[c] > op[1]->value.u[c];
|
|
break;
|
|
case GLSL_TYPE_INT:
|
|
data.b[c] = op[0]->value.i[c] > op[1]->value.i[c];
|
|
break;
|
|
case GLSL_TYPE_FLOAT:
|
|
data.b[c] = op[0]->value.f[c] > op[1]->value.f[c];
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
break;
|
|
case ir_binop_lequal:
|
|
assert(op[0]->type == op[1]->type);
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++) {
|
|
switch (op[0]->type->base_type) {
|
|
case GLSL_TYPE_UINT:
|
|
data.b[0] = op[0]->value.u[0] <= op[1]->value.u[0];
|
|
break;
|
|
case GLSL_TYPE_INT:
|
|
data.b[0] = op[0]->value.i[0] <= op[1]->value.i[0];
|
|
break;
|
|
case GLSL_TYPE_FLOAT:
|
|
data.b[0] = op[0]->value.f[0] <= op[1]->value.f[0];
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
break;
|
|
case ir_binop_gequal:
|
|
assert(op[0]->type == op[1]->type);
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++) {
|
|
switch (op[0]->type->base_type) {
|
|
case GLSL_TYPE_UINT:
|
|
data.b[0] = op[0]->value.u[0] >= op[1]->value.u[0];
|
|
break;
|
|
case GLSL_TYPE_INT:
|
|
data.b[0] = op[0]->value.i[0] >= op[1]->value.i[0];
|
|
break;
|
|
case GLSL_TYPE_FLOAT:
|
|
data.b[0] = op[0]->value.f[0] >= op[1]->value.f[0];
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
break;
|
|
case ir_binop_equal:
|
|
assert(op[0]->type == op[1]->type);
|
|
for (unsigned c = 0; c < components; c++) {
|
|
switch (op[0]->type->base_type) {
|
|
case GLSL_TYPE_UINT:
|
|
data.b[c] = op[0]->value.u[c] == op[1]->value.u[c];
|
|
break;
|
|
case GLSL_TYPE_INT:
|
|
data.b[c] = op[0]->value.i[c] == op[1]->value.i[c];
|
|
break;
|
|
case GLSL_TYPE_FLOAT:
|
|
data.b[c] = op[0]->value.f[c] == op[1]->value.f[c];
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
break;
|
|
case ir_binop_nequal:
|
|
assert(op[0]->type != op[1]->type);
|
|
for (unsigned c = 0; c < components; c++) {
|
|
switch (op[0]->type->base_type) {
|
|
case GLSL_TYPE_UINT:
|
|
data.b[c] = op[0]->value.u[c] != op[1]->value.u[c];
|
|
break;
|
|
case GLSL_TYPE_INT:
|
|
data.b[c] = op[0]->value.i[c] != op[1]->value.i[c];
|
|
break;
|
|
case GLSL_TYPE_FLOAT:
|
|
data.b[c] = op[0]->value.f[c] != op[1]->value.f[c];
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
break;
|
|
case ir_binop_all_equal:
|
|
data.b[0] = op[0]->has_value(op[1]);
|
|
break;
|
|
case ir_binop_any_nequal:
|
|
data.b[0] = !op[0]->has_value(op[1]);
|
|
break;
|
|
|
|
case ir_binop_lshift:
|
|
for (unsigned c = 0, c0 = 0, c1 = 0;
|
|
c < components;
|
|
c0 += c0_inc, c1 += c1_inc, c++) {
|
|
|
|
if (op[0]->type->base_type == GLSL_TYPE_INT &&
|
|
op[1]->type->base_type == GLSL_TYPE_INT) {
|
|
data.i[c] = op[0]->value.i[c0] << op[1]->value.i[c1];
|
|
|
|
} else if (op[0]->type->base_type == GLSL_TYPE_INT &&
|
|
op[1]->type->base_type == GLSL_TYPE_UINT) {
|
|
data.i[c] = op[0]->value.i[c0] << op[1]->value.u[c1];
|
|
|
|
} else if (op[0]->type->base_type == GLSL_TYPE_UINT &&
|
|
op[1]->type->base_type == GLSL_TYPE_INT) {
|
|
data.u[c] = op[0]->value.u[c0] << op[1]->value.i[c1];
|
|
|
|
} else if (op[0]->type->base_type == GLSL_TYPE_UINT &&
|
|
op[1]->type->base_type == GLSL_TYPE_UINT) {
|
|
data.u[c] = op[0]->value.u[c0] << op[1]->value.u[c1];
|
|
}
|
|
}
|
|
break;
|
|
|
|
case ir_binop_rshift:
|
|
for (unsigned c = 0, c0 = 0, c1 = 0;
|
|
c < components;
|
|
c0 += c0_inc, c1 += c1_inc, c++) {
|
|
|
|
if (op[0]->type->base_type == GLSL_TYPE_INT &&
|
|
op[1]->type->base_type == GLSL_TYPE_INT) {
|
|
data.i[c] = op[0]->value.i[c0] >> op[1]->value.i[c1];
|
|
|
|
} else if (op[0]->type->base_type == GLSL_TYPE_INT &&
|
|
op[1]->type->base_type == GLSL_TYPE_UINT) {
|
|
data.i[c] = op[0]->value.i[c0] >> op[1]->value.u[c1];
|
|
|
|
} else if (op[0]->type->base_type == GLSL_TYPE_UINT &&
|
|
op[1]->type->base_type == GLSL_TYPE_INT) {
|
|
data.u[c] = op[0]->value.u[c0] >> op[1]->value.i[c1];
|
|
|
|
} else if (op[0]->type->base_type == GLSL_TYPE_UINT &&
|
|
op[1]->type->base_type == GLSL_TYPE_UINT) {
|
|
data.u[c] = op[0]->value.u[c0] >> op[1]->value.u[c1];
|
|
}
|
|
}
|
|
break;
|
|
|
|
case ir_binop_bit_and:
|
|
for (unsigned c = 0, c0 = 0, c1 = 0;
|
|
c < components;
|
|
c0 += c0_inc, c1 += c1_inc, c++) {
|
|
|
|
switch (op[0]->type->base_type) {
|
|
case GLSL_TYPE_INT:
|
|
data.i[c] = op[0]->value.i[c0] & op[1]->value.i[c1];
|
|
break;
|
|
case GLSL_TYPE_UINT:
|
|
data.u[c] = op[0]->value.u[c0] & op[1]->value.u[c1];
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case ir_binop_bit_or:
|
|
for (unsigned c = 0, c0 = 0, c1 = 0;
|
|
c < components;
|
|
c0 += c0_inc, c1 += c1_inc, c++) {
|
|
|
|
switch (op[0]->type->base_type) {
|
|
case GLSL_TYPE_INT:
|
|
data.i[c] = op[0]->value.i[c0] | op[1]->value.i[c1];
|
|
break;
|
|
case GLSL_TYPE_UINT:
|
|
data.u[c] = op[0]->value.u[c0] | op[1]->value.u[c1];
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case ir_binop_bit_xor:
|
|
for (unsigned c = 0, c0 = 0, c1 = 0;
|
|
c < components;
|
|
c0 += c0_inc, c1 += c1_inc, c++) {
|
|
|
|
switch (op[0]->type->base_type) {
|
|
case GLSL_TYPE_INT:
|
|
data.i[c] = op[0]->value.i[c0] ^ op[1]->value.i[c1];
|
|
break;
|
|
case GLSL_TYPE_UINT:
|
|
data.u[c] = op[0]->value.u[c0] ^ op[1]->value.u[c1];
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case ir_quadop_vector:
|
|
for (unsigned c = 0; c < this->type->vector_elements; c++) {
|
|
switch (this->type->base_type) {
|
|
case GLSL_TYPE_INT:
|
|
data.i[c] = op[c]->value.i[0];
|
|
break;
|
|
case GLSL_TYPE_UINT:
|
|
data.u[c] = op[c]->value.u[0];
|
|
break;
|
|
case GLSL_TYPE_FLOAT:
|
|
data.f[c] = op[c]->value.f[0];
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
/* FINISHME: Should handle all expression types. */
|
|
return NULL;
|
|
}
|
|
|
|
return new(ctx) ir_constant(this->type, &data);
|
|
}
|
|
|
|
|
|
ir_constant *
|
|
ir_texture::constant_expression_value()
|
|
{
|
|
/* texture lookups aren't constant expressions */
|
|
return NULL;
|
|
}
|
|
|
|
|
|
ir_constant *
|
|
ir_swizzle::constant_expression_value()
|
|
{
|
|
ir_constant *v = this->val->constant_expression_value();
|
|
|
|
if (v != NULL) {
|
|
ir_constant_data data = { { 0 } };
|
|
|
|
const unsigned swiz_idx[4] = {
|
|
this->mask.x, this->mask.y, this->mask.z, this->mask.w
|
|
};
|
|
|
|
for (unsigned i = 0; i < this->mask.num_components; i++) {
|
|
switch (v->type->base_type) {
|
|
case GLSL_TYPE_UINT:
|
|
case GLSL_TYPE_INT: data.u[i] = v->value.u[swiz_idx[i]]; break;
|
|
case GLSL_TYPE_FLOAT: data.f[i] = v->value.f[swiz_idx[i]]; break;
|
|
case GLSL_TYPE_BOOL: data.b[i] = v->value.b[swiz_idx[i]]; break;
|
|
default: assert(!"Should not get here."); break;
|
|
}
|
|
}
|
|
|
|
void *ctx = ralloc_parent(this);
|
|
return new(ctx) ir_constant(this->type, &data);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
ir_constant *
|
|
ir_dereference_variable::constant_expression_value()
|
|
{
|
|
/* This may occur during compile and var->type is glsl_type::error_type */
|
|
if (!var)
|
|
return NULL;
|
|
|
|
/* The constant_value of a uniform variable is its initializer,
|
|
* not the lifetime constant value of the uniform.
|
|
*/
|
|
if (var->mode == ir_var_uniform)
|
|
return NULL;
|
|
|
|
if (!var->constant_value)
|
|
return NULL;
|
|
|
|
return var->constant_value->clone(ralloc_parent(var), NULL);
|
|
}
|
|
|
|
|
|
ir_constant *
|
|
ir_dereference_array::constant_expression_value()
|
|
{
|
|
ir_constant *array = this->array->constant_expression_value();
|
|
ir_constant *idx = this->array_index->constant_expression_value();
|
|
|
|
if ((array != NULL) && (idx != NULL)) {
|
|
void *ctx = ralloc_parent(this);
|
|
if (array->type->is_matrix()) {
|
|
/* Array access of a matrix results in a vector.
|
|
*/
|
|
const unsigned column = idx->value.u[0];
|
|
|
|
const glsl_type *const column_type = array->type->column_type();
|
|
|
|
/* Offset in the constant matrix to the first element of the column
|
|
* to be extracted.
|
|
*/
|
|
const unsigned mat_idx = column * column_type->vector_elements;
|
|
|
|
ir_constant_data data = { { 0 } };
|
|
|
|
switch (column_type->base_type) {
|
|
case GLSL_TYPE_UINT:
|
|
case GLSL_TYPE_INT:
|
|
for (unsigned i = 0; i < column_type->vector_elements; i++)
|
|
data.u[i] = array->value.u[mat_idx + i];
|
|
|
|
break;
|
|
|
|
case GLSL_TYPE_FLOAT:
|
|
for (unsigned i = 0; i < column_type->vector_elements; i++)
|
|
data.f[i] = array->value.f[mat_idx + i];
|
|
|
|
break;
|
|
|
|
default:
|
|
assert(!"Should not get here.");
|
|
break;
|
|
}
|
|
|
|
return new(ctx) ir_constant(column_type, &data);
|
|
} else if (array->type->is_vector()) {
|
|
const unsigned component = idx->value.u[0];
|
|
|
|
return new(ctx) ir_constant(array, component);
|
|
} else {
|
|
const unsigned index = idx->value.u[0];
|
|
return array->get_array_element(index)->clone(ctx, NULL);
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
ir_constant *
|
|
ir_dereference_record::constant_expression_value()
|
|
{
|
|
ir_constant *v = this->record->constant_expression_value();
|
|
|
|
return (v != NULL) ? v->get_record_field(this->field) : NULL;
|
|
}
|
|
|
|
|
|
ir_constant *
|
|
ir_assignment::constant_expression_value()
|
|
{
|
|
/* FINISHME: Handle CEs involving assignment (return RHS) */
|
|
return NULL;
|
|
}
|
|
|
|
|
|
ir_constant *
|
|
ir_constant::constant_expression_value()
|
|
{
|
|
return this;
|
|
}
|
|
|
|
|
|
ir_constant *
|
|
ir_call::constant_expression_value()
|
|
{
|
|
if (this->type == glsl_type::error_type)
|
|
return NULL;
|
|
|
|
/* From the GLSL 1.20 spec, page 23:
|
|
* "Function calls to user-defined functions (non-built-in functions)
|
|
* cannot be used to form constant expressions."
|
|
*/
|
|
if (!this->callee->is_builtin)
|
|
return NULL;
|
|
|
|
unsigned num_parameters = 0;
|
|
|
|
/* Check if all parameters are constant */
|
|
ir_constant *op[3];
|
|
foreach_list(n, &this->actual_parameters) {
|
|
ir_constant *constant = ((ir_rvalue *) n)->constant_expression_value();
|
|
if (constant == NULL)
|
|
return NULL;
|
|
|
|
op[num_parameters] = constant;
|
|
|
|
assert(num_parameters < 3);
|
|
num_parameters++;
|
|
}
|
|
|
|
/* Individual cases below can either:
|
|
* - Assign "expr" a new ir_expression to evaluate (for basic opcodes)
|
|
* - Fill "data" with appopriate constant data
|
|
* - Return an ir_constant directly.
|
|
*/
|
|
void *mem_ctx = ralloc_parent(this);
|
|
ir_expression *expr = NULL;
|
|
|
|
ir_constant_data data;
|
|
memset(&data, 0, sizeof(data));
|
|
|
|
const char *callee = this->callee_name();
|
|
if (strcmp(callee, "abs") == 0) {
|
|
expr = new(mem_ctx) ir_expression(ir_unop_abs, type, op[0], NULL);
|
|
} else if (strcmp(callee, "all") == 0) {
|
|
assert(op[0]->type->is_boolean());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++) {
|
|
if (!op[0]->value.b[c])
|
|
return new(mem_ctx) ir_constant(false);
|
|
}
|
|
return new(mem_ctx) ir_constant(true);
|
|
} else if (strcmp(callee, "any") == 0) {
|
|
assert(op[0]->type->is_boolean());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++) {
|
|
if (op[0]->value.b[c])
|
|
return new(mem_ctx) ir_constant(true);
|
|
}
|
|
return new(mem_ctx) ir_constant(false);
|
|
} else if (strcmp(callee, "acos") == 0) {
|
|
assert(op[0]->type->is_float());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++)
|
|
data.f[c] = acosf(op[0]->value.f[c]);
|
|
} else if (strcmp(callee, "acosh") == 0) {
|
|
assert(op[0]->type->is_float());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++)
|
|
data.f[c] = acoshf(op[0]->value.f[c]);
|
|
} else if (strcmp(callee, "asin") == 0) {
|
|
assert(op[0]->type->is_float());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++)
|
|
data.f[c] = asinf(op[0]->value.f[c]);
|
|
} else if (strcmp(callee, "asinh") == 0) {
|
|
assert(op[0]->type->is_float());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++)
|
|
data.f[c] = asinhf(op[0]->value.f[c]);
|
|
} else if (strcmp(callee, "atan") == 0) {
|
|
assert(op[0]->type->is_float());
|
|
if (num_parameters == 2) {
|
|
assert(op[1]->type->is_float());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++)
|
|
data.f[c] = atan2f(op[0]->value.f[c], op[1]->value.f[c]);
|
|
} else {
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++)
|
|
data.f[c] = atanf(op[0]->value.f[c]);
|
|
}
|
|
} else if (strcmp(callee, "atanh") == 0) {
|
|
assert(op[0]->type->is_float());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++)
|
|
data.f[c] = atanhf(op[0]->value.f[c]);
|
|
} else if (strcmp(callee, "dFdx") == 0 || strcmp(callee, "dFdy") == 0) {
|
|
return ir_constant::zero(mem_ctx, this->type);
|
|
} else if (strcmp(callee, "ceil") == 0) {
|
|
expr = new(mem_ctx) ir_expression(ir_unop_ceil, type, op[0], NULL);
|
|
} else if (strcmp(callee, "clamp") == 0) {
|
|
assert(num_parameters == 3);
|
|
unsigned c1_inc = op[1]->type->is_scalar() ? 0 : 1;
|
|
unsigned c2_inc = op[2]->type->is_scalar() ? 0 : 1;
|
|
for (unsigned c = 0, c1 = 0, c2 = 0;
|
|
c < op[0]->type->components();
|
|
c1 += c1_inc, c2 += c2_inc, c++) {
|
|
|
|
switch (op[0]->type->base_type) {
|
|
case GLSL_TYPE_UINT:
|
|
data.u[c] = CLAMP(op[0]->value.u[c], op[1]->value.u[c1],
|
|
op[2]->value.u[c2]);
|
|
break;
|
|
case GLSL_TYPE_INT:
|
|
data.i[c] = CLAMP(op[0]->value.i[c], op[1]->value.i[c1],
|
|
op[2]->value.i[c2]);
|
|
break;
|
|
case GLSL_TYPE_FLOAT:
|
|
data.f[c] = CLAMP(op[0]->value.f[c], op[1]->value.f[c1],
|
|
op[2]->value.f[c2]);
|
|
break;
|
|
default:
|
|
assert(!"Should not get here.");
|
|
}
|
|
}
|
|
} else if (strcmp(callee, "cos") == 0) {
|
|
expr = new(mem_ctx) ir_expression(ir_unop_cos, type, op[0], NULL);
|
|
} else if (strcmp(callee, "cosh") == 0) {
|
|
assert(op[0]->type->is_float());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++)
|
|
data.f[c] = coshf(op[0]->value.f[c]);
|
|
} else if (strcmp(callee, "cross") == 0) {
|
|
assert(op[0]->type == glsl_type::vec3_type);
|
|
assert(op[1]->type == glsl_type::vec3_type);
|
|
data.f[0] = (op[0]->value.f[1] * op[1]->value.f[2] -
|
|
op[1]->value.f[1] * op[0]->value.f[2]);
|
|
data.f[1] = (op[0]->value.f[2] * op[1]->value.f[0] -
|
|
op[1]->value.f[2] * op[0]->value.f[0]);
|
|
data.f[2] = (op[0]->value.f[0] * op[1]->value.f[1] -
|
|
op[1]->value.f[0] * op[0]->value.f[1]);
|
|
} else if (strcmp(callee, "degrees") == 0) {
|
|
assert(op[0]->type->is_float());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++)
|
|
data.f[c] = 180.0F / M_PI * op[0]->value.f[c];
|
|
} else if (strcmp(callee, "distance") == 0) {
|
|
assert(op[0]->type->is_float() && op[1]->type->is_float());
|
|
float length_squared = 0.0;
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++) {
|
|
float t = op[0]->value.f[c] - op[1]->value.f[c];
|
|
length_squared += t * t;
|
|
}
|
|
return new(mem_ctx) ir_constant(sqrtf(length_squared));
|
|
} else if (strcmp(callee, "dot") == 0) {
|
|
return new(mem_ctx) ir_constant(dot(op[0], op[1]));
|
|
} else if (strcmp(callee, "equal") == 0) {
|
|
assert(op[0]->type->is_vector() && op[1] && op[1]->type->is_vector());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++) {
|
|
switch (op[0]->type->base_type) {
|
|
case GLSL_TYPE_UINT:
|
|
data.b[c] = op[0]->value.u[c] == op[1]->value.u[c];
|
|
break;
|
|
case GLSL_TYPE_INT:
|
|
data.b[c] = op[0]->value.i[c] == op[1]->value.i[c];
|
|
break;
|
|
case GLSL_TYPE_FLOAT:
|
|
data.b[c] = op[0]->value.f[c] == op[1]->value.f[c];
|
|
break;
|
|
case GLSL_TYPE_BOOL:
|
|
data.b[c] = op[0]->value.b[c] == op[1]->value.b[c];
|
|
break;
|
|
default:
|
|
assert(!"Should not get here.");
|
|
}
|
|
}
|
|
} else if (strcmp(callee, "exp") == 0) {
|
|
expr = new(mem_ctx) ir_expression(ir_unop_exp, type, op[0], NULL);
|
|
} else if (strcmp(callee, "exp2") == 0) {
|
|
expr = new(mem_ctx) ir_expression(ir_unop_exp2, type, op[0], NULL);
|
|
} else if (strcmp(callee, "faceforward") == 0) {
|
|
if (dot(op[2], op[1]) < 0)
|
|
return op[0];
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++)
|
|
data.f[c] = -op[0]->value.f[c];
|
|
} else if (strcmp(callee, "floor") == 0) {
|
|
expr = new(mem_ctx) ir_expression(ir_unop_floor, type, op[0], NULL);
|
|
} else if (strcmp(callee, "fract") == 0) {
|
|
expr = new(mem_ctx) ir_expression(ir_unop_fract, type, op[0], NULL);
|
|
} else if (strcmp(callee, "fwidth") == 0) {
|
|
return ir_constant::zero(mem_ctx, this->type);
|
|
} else if (strcmp(callee, "greaterThan") == 0) {
|
|
assert(op[0]->type->is_vector() && op[1] && op[1]->type->is_vector());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++) {
|
|
switch (op[0]->type->base_type) {
|
|
case GLSL_TYPE_UINT:
|
|
data.b[c] = op[0]->value.u[c] > op[1]->value.u[c];
|
|
break;
|
|
case GLSL_TYPE_INT:
|
|
data.b[c] = op[0]->value.i[c] > op[1]->value.i[c];
|
|
break;
|
|
case GLSL_TYPE_FLOAT:
|
|
data.b[c] = op[0]->value.f[c] > op[1]->value.f[c];
|
|
break;
|
|
default:
|
|
assert(!"Should not get here.");
|
|
}
|
|
}
|
|
} else if (strcmp(callee, "greaterThanEqual") == 0) {
|
|
assert(op[0]->type->is_vector() && op[1] && op[1]->type->is_vector());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++) {
|
|
switch (op[0]->type->base_type) {
|
|
case GLSL_TYPE_UINT:
|
|
data.b[c] = op[0]->value.u[c] >= op[1]->value.u[c];
|
|
break;
|
|
case GLSL_TYPE_INT:
|
|
data.b[c] = op[0]->value.i[c] >= op[1]->value.i[c];
|
|
break;
|
|
case GLSL_TYPE_FLOAT:
|
|
data.b[c] = op[0]->value.f[c] >= op[1]->value.f[c];
|
|
break;
|
|
default:
|
|
assert(!"Should not get here.");
|
|
}
|
|
}
|
|
} else if (strcmp(callee, "inversesqrt") == 0) {
|
|
expr = new(mem_ctx) ir_expression(ir_unop_rsq, type, op[0], NULL);
|
|
} else if (strcmp(callee, "length") == 0) {
|
|
return new(mem_ctx) ir_constant(sqrtf(dot(op[0], op[0])));
|
|
} else if (strcmp(callee, "lessThan") == 0) {
|
|
assert(op[0]->type->is_vector() && op[1] && op[1]->type->is_vector());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++) {
|
|
switch (op[0]->type->base_type) {
|
|
case GLSL_TYPE_UINT:
|
|
data.b[c] = op[0]->value.u[c] < op[1]->value.u[c];
|
|
break;
|
|
case GLSL_TYPE_INT:
|
|
data.b[c] = op[0]->value.i[c] < op[1]->value.i[c];
|
|
break;
|
|
case GLSL_TYPE_FLOAT:
|
|
data.b[c] = op[0]->value.f[c] < op[1]->value.f[c];
|
|
break;
|
|
default:
|
|
assert(!"Should not get here.");
|
|
}
|
|
}
|
|
} else if (strcmp(callee, "lessThanEqual") == 0) {
|
|
assert(op[0]->type->is_vector() && op[1] && op[1]->type->is_vector());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++) {
|
|
switch (op[0]->type->base_type) {
|
|
case GLSL_TYPE_UINT:
|
|
data.b[c] = op[0]->value.u[c] <= op[1]->value.u[c];
|
|
break;
|
|
case GLSL_TYPE_INT:
|
|
data.b[c] = op[0]->value.i[c] <= op[1]->value.i[c];
|
|
break;
|
|
case GLSL_TYPE_FLOAT:
|
|
data.b[c] = op[0]->value.f[c] <= op[1]->value.f[c];
|
|
break;
|
|
default:
|
|
assert(!"Should not get here.");
|
|
}
|
|
}
|
|
} else if (strcmp(callee, "log") == 0) {
|
|
expr = new(mem_ctx) ir_expression(ir_unop_log, type, op[0], NULL);
|
|
} else if (strcmp(callee, "log2") == 0) {
|
|
expr = new(mem_ctx) ir_expression(ir_unop_log2, type, op[0], NULL);
|
|
} else if (strcmp(callee, "matrixCompMult") == 0) {
|
|
assert(op[0]->type->is_float() && op[1]->type->is_float());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++)
|
|
data.f[c] = op[0]->value.f[c] * op[1]->value.f[c];
|
|
} else if (strcmp(callee, "max") == 0) {
|
|
expr = new(mem_ctx) ir_expression(ir_binop_max, type, op[0], op[1]);
|
|
} else if (strcmp(callee, "min") == 0) {
|
|
expr = new(mem_ctx) ir_expression(ir_binop_min, type, op[0], op[1]);
|
|
} else if (strcmp(callee, "mix") == 0) {
|
|
assert(op[0]->type->is_float() && op[1]->type->is_float());
|
|
if (op[2]->type->is_float()) {
|
|
unsigned c2_inc = op[2]->type->is_scalar() ? 0 : 1;
|
|
unsigned components = op[0]->type->components();
|
|
for (unsigned c = 0, c2 = 0; c < components; c2 += c2_inc, c++) {
|
|
data.f[c] = op[0]->value.f[c] * (1 - op[2]->value.f[c2]) +
|
|
op[1]->value.f[c] * op[2]->value.f[c2];
|
|
}
|
|
} else {
|
|
assert(op[2]->type->is_boolean());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++)
|
|
data.f[c] = op[op[2]->value.b[c] ? 1 : 0]->value.f[c];
|
|
}
|
|
} else if (strcmp(callee, "mod") == 0) {
|
|
expr = new(mem_ctx) ir_expression(ir_binop_mod, type, op[0], op[1]);
|
|
} else if (strcmp(callee, "normalize") == 0) {
|
|
assert(op[0]->type->is_float());
|
|
float length = sqrtf(dot(op[0], op[0]));
|
|
|
|
if (length == 0)
|
|
return ir_constant::zero(mem_ctx, this->type);
|
|
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++)
|
|
data.f[c] = op[0]->value.f[c] / length;
|
|
} else if (strcmp(callee, "not") == 0) {
|
|
expr = new(mem_ctx) ir_expression(ir_unop_logic_not, type, op[0], NULL);
|
|
} else if (strcmp(callee, "notEqual") == 0) {
|
|
assert(op[0]->type->is_vector() && op[1] && op[1]->type->is_vector());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++) {
|
|
switch (op[0]->type->base_type) {
|
|
case GLSL_TYPE_UINT:
|
|
data.b[c] = op[0]->value.u[c] != op[1]->value.u[c];
|
|
break;
|
|
case GLSL_TYPE_INT:
|
|
data.b[c] = op[0]->value.i[c] != op[1]->value.i[c];
|
|
break;
|
|
case GLSL_TYPE_FLOAT:
|
|
data.b[c] = op[0]->value.f[c] != op[1]->value.f[c];
|
|
break;
|
|
case GLSL_TYPE_BOOL:
|
|
data.b[c] = op[0]->value.b[c] != op[1]->value.b[c];
|
|
break;
|
|
default:
|
|
assert(!"Should not get here.");
|
|
}
|
|
}
|
|
} else if (strcmp(callee, "outerProduct") == 0) {
|
|
assert(op[0]->type->is_vector() && op[1]->type->is_vector());
|
|
const unsigned m = op[0]->type->vector_elements;
|
|
const unsigned n = op[1]->type->vector_elements;
|
|
for (unsigned j = 0; j < n; j++) {
|
|
for (unsigned i = 0; i < m; i++) {
|
|
data.f[i+m*j] = op[0]->value.f[i] * op[1]->value.f[j];
|
|
}
|
|
}
|
|
} else if (strcmp(callee, "pow") == 0) {
|
|
expr = new(mem_ctx) ir_expression(ir_binop_pow, type, op[0], op[1]);
|
|
} else if (strcmp(callee, "radians") == 0) {
|
|
assert(op[0]->type->is_float());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++)
|
|
data.f[c] = M_PI / 180.0F * op[0]->value.f[c];
|
|
} else if (strcmp(callee, "reflect") == 0) {
|
|
assert(op[0]->type->is_float());
|
|
float dot_NI = dot(op[1], op[0]);
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++)
|
|
data.f[c] = op[0]->value.f[c] - 2 * dot_NI * op[1]->value.f[c];
|
|
} else if (strcmp(callee, "refract") == 0) {
|
|
const float eta = op[2]->value.f[0];
|
|
const float dot_NI = dot(op[1], op[0]);
|
|
const float k = 1.0F - eta * eta * (1.0F - dot_NI * dot_NI);
|
|
if (k < 0.0) {
|
|
return ir_constant::zero(mem_ctx, this->type);
|
|
} else {
|
|
for (unsigned c = 0; c < type->components(); c++) {
|
|
data.f[c] = eta * op[0]->value.f[c] - (eta * dot_NI + sqrtf(k))
|
|
* op[1]->value.f[c];
|
|
}
|
|
}
|
|
} else if (strcmp(callee, "sign") == 0) {
|
|
expr = new(mem_ctx) ir_expression(ir_unop_sign, type, op[0], NULL);
|
|
} else if (strcmp(callee, "sin") == 0) {
|
|
expr = new(mem_ctx) ir_expression(ir_unop_sin, type, op[0], NULL);
|
|
} else if (strcmp(callee, "sinh") == 0) {
|
|
assert(op[0]->type->is_float());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++)
|
|
data.f[c] = sinhf(op[0]->value.f[c]);
|
|
} else if (strcmp(callee, "smoothstep") == 0) {
|
|
assert(num_parameters == 3);
|
|
assert(op[1]->type == op[0]->type);
|
|
unsigned edge_inc = op[0]->type->is_scalar() ? 0 : 1;
|
|
for (unsigned c = 0, e = 0; c < type->components(); e += edge_inc, c++) {
|
|
const float edge0 = op[0]->value.f[e];
|
|
const float edge1 = op[1]->value.f[e];
|
|
if (edge0 == edge1) {
|
|
data.f[c] = 0.0; /* Avoid a crash - results are undefined anyway */
|
|
} else {
|
|
const float numerator = op[2]->value.f[c] - edge0;
|
|
const float denominator = edge1 - edge0;
|
|
const float t = CLAMP(numerator/denominator, 0, 1);
|
|
data.f[c] = t * t * (3 - 2 * t);
|
|
}
|
|
}
|
|
} else if (strcmp(callee, "sqrt") == 0) {
|
|
expr = new(mem_ctx) ir_expression(ir_unop_sqrt, type, op[0], NULL);
|
|
} else if (strcmp(callee, "step") == 0) {
|
|
assert(op[0]->type->is_float() && op[1]->type->is_float());
|
|
/* op[0] (edge) may be either a scalar or a vector */
|
|
const unsigned c0_inc = op[0]->type->is_scalar() ? 0 : 1;
|
|
for (unsigned c = 0, c0 = 0; c < type->components(); c0 += c0_inc, c++)
|
|
data.f[c] = (op[1]->value.f[c] < op[0]->value.f[c0]) ? 0.0F : 1.0F;
|
|
} else if (strcmp(callee, "tan") == 0) {
|
|
assert(op[0]->type->is_float());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++)
|
|
data.f[c] = tanf(op[0]->value.f[c]);
|
|
} else if (strcmp(callee, "tanh") == 0) {
|
|
assert(op[0]->type->is_float());
|
|
for (unsigned c = 0; c < op[0]->type->components(); c++)
|
|
data.f[c] = tanhf(op[0]->value.f[c]);
|
|
} else if (strcmp(callee, "transpose") == 0) {
|
|
assert(op[0]->type->is_matrix());
|
|
const unsigned n = op[0]->type->vector_elements;
|
|
const unsigned m = op[0]->type->matrix_columns;
|
|
for (unsigned j = 0; j < m; j++) {
|
|
for (unsigned i = 0; i < n; i++) {
|
|
data.f[m*i+j] += op[0]->value.f[i+n*j];
|
|
}
|
|
}
|
|
} else {
|
|
/* Unsupported builtin - some are not allowed in constant expressions. */
|
|
return NULL;
|
|
}
|
|
|
|
if (expr != NULL)
|
|
return expr->constant_expression_value();
|
|
|
|
return new(mem_ctx) ir_constant(this->type, &data);
|
|
}
|