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/*
* Copyright © 2010 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <stdlib.h>
#include "glsl_symbol_table.h"
#include "glsl_parser_extras.h"
#include "glsl_types.h"
#include "ir.h"
static void
generate_unop(exec_list *instructions,
ir_variable **declarations,
const glsl_type *type,
enum ir_expression_operation op)
{
ir_dereference *const retval = new ir_dereference(declarations[16]);
ir_dereference *const arg = new ir_dereference(declarations[0]);
ir_rvalue *result;
result = new ir_expression(op, type, arg, NULL);
ir_instruction *inst = new ir_assignment(retval, result, NULL);
instructions->push_tail(inst);
}
static void
generate_exp(exec_list *instructions,
ir_variable **declarations,
const glsl_type *type)
{
generate_unop(instructions, declarations, type, ir_unop_exp);
}
static void
generate_log(exec_list *instructions,
ir_variable **declarations,
const glsl_type *type)
{
generate_unop(instructions, declarations, type, ir_unop_log);
}
static void
generate_rsq(exec_list *instructions,
ir_variable **declarations,
const glsl_type *type)
{
generate_unop(instructions, declarations, type, ir_unop_rsq);
}
static void
generate_abs(exec_list *instructions,
ir_variable **declarations,
const glsl_type *type)
{
generate_unop(instructions, declarations, type, ir_unop_abs);
}
static void
generate_ceil(exec_list *instructions,
ir_variable **declarations,
const glsl_type *type)
{
generate_unop(instructions, declarations, type, ir_unop_ceil);
}
static void
generate_floor(exec_list *instructions,
ir_variable **declarations,
const glsl_type *type)
{
generate_unop(instructions, declarations, type, ir_unop_floor);
}
void
generate_function_instance(ir_function *f,
const char *name,
exec_list *instructions,
void (*generate)(exec_list *instructions,
ir_variable **declarations,
const glsl_type *type),
const glsl_type *type)
{
ir_variable *declarations[17];
ir_function_signature *const sig = new ir_function_signature(type);
f->signatures.push_tail(sig);
ir_label *const label = new ir_label(name);
instructions->push_tail(label);
sig->definition = label;
ir_variable *var = new ir_variable(type, "arg");
var->mode = ir_var_in;
sig->parameters.push_tail(var);
var = new ir_variable(type, "arg");
declarations[0] = var;
ir_variable *retval = new ir_variable(type, "__retval");
instructions->push_tail(retval);
declarations[16] = retval;
generate(instructions, declarations, type);
}
void
make_gentype_function(glsl_symbol_table *symtab, exec_list *instructions,
const char *name,
void (*generate)(exec_list *instructions,
ir_variable **declarations,
const glsl_type *type))
{
ir_function *const f = new ir_function(name);
const glsl_type *vec2_type = glsl_type::get_instance(GLSL_TYPE_FLOAT, 2, 1);
const glsl_type *vec3_type = glsl_type::get_instance(GLSL_TYPE_FLOAT, 3, 1);
const glsl_type *vec4_type = glsl_type::get_instance(GLSL_TYPE_FLOAT, 4, 1);
bool added = symtab->add_function(name, f);
assert(added);
generate_function_instance(f, name, instructions, generate, glsl_type::float_type);
generate_function_instance(f, name, instructions, generate, vec2_type);
generate_function_instance(f, name, instructions, generate, vec3_type);
generate_function_instance(f, name, instructions, generate, vec4_type);
}
void
generate_110_functions(glsl_symbol_table *symtab, exec_list *instructions)
{
/* FINISHME: radians() */
/* FINISHME: degrees() */
/* FINISHME: sin() */
/* FINISHME: cos() */
/* FINISHME: tan() */
/* FINISHME: asin() */
/* FINISHME: acos() */
/* FINISHME: atan(y,x) */
/* FINISHME: atan(y/x) */
/* FINISHME: pow() */
make_gentype_function(symtab, instructions, "exp", generate_exp);
make_gentype_function(symtab, instructions, "log", generate_log);
/* FINISHME: exp2() */
/* FINISHME: log2() */
/* FINISHME: sqrt() */
make_gentype_function(symtab, instructions, "inversesqrt", generate_rsq);
make_gentype_function(symtab, instructions, "abs", generate_abs);
/* FINISHME: sign() */
make_gentype_function(symtab, instructions, "floor", generate_floor);
make_gentype_function(symtab, instructions, "ceil", generate_ceil);
/* FINISHME: fract() */
/* FINISHME: mod(x, float y) */
/* FINISHME: mod(x, y) */
/* FINISHME: min() */
/* FINISHME: max() */
/* FINISHME: clamp() */
/* FINISHME: clamp() */
/* FINISHME: mix() */
/* FINISHME: mix() */
/* FINISHME: step() */
/* FINISHME: step() */
/* FINISHME: smoothstep() */
/* FINISHME: smoothstep() */
/* FINISHME: floor() */
/* FINISHME: step() */
/* FINISHME: length() */
/* FINISHME: distance() */
/* FINISHME: dot() */
/* FINISHME: cross() */
/* FINISHME: normalize() */
/* FINISHME: ftransform() */
/* FINISHME: faceforward() */
/* FINISHME: reflect() */
/* FINISHME: refract() */
/* FINISHME: matrixCompMult() */
/* FINISHME: lessThan() */
/* FINISHME: lessThanEqual() */
/* FINISHME: greaterThan() */
/* FINISHME: greaterThanEqual() */
/* FINISHME: equal() */
/* FINISHME: notEqual() */
/* FINISHME: any() */
/* FINISHME: all() */
/* FINISHME: not() */
/* FINISHME: texture*() */
/* FINISHME: shadow*() */
/* FINISHME: dFd[xy]() */
/* FINISHME: fwidth() */
}
void
_mesa_glsl_initialize_functions(exec_list *instructions,
struct _mesa_glsl_parse_state *state)
{
generate_110_functions(state->symbols, instructions);
}
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