Implement the first builtin function: exp().
This commit is contained in:
Eric Anholt
Ian Romanick
parent
43de172820
commit
c22c40015d
|
|
@ -26,7 +26,7 @@ bin_PROGRAMS = glsl
|
|||
glsl_SOURCES = symbol_table.c hash_table.c glsl_types.cpp \
|
||||
glsl_parser.ypp glsl_lexer.lpp glsl_parser_extras.cpp \
|
||||
ast_expr.cpp ast_to_hir.cpp ast_function.cpp ast_type.cpp \
|
||||
ir.cpp hir_field_selection.cpp \
|
||||
ir.cpp hir_field_selection.cpp builtin_function.cpp \
|
||||
ir_print_visitor.cpp ir_variable.cpp ir_function.cpp
|
||||
|
||||
BUILT_SOURCES = glsl_parser.h builtin_types.h glsl_parser.cpp glsl_lexer.cpp
|
||||
|
|
|
|||
|
|
@ -63,6 +63,7 @@ _mesa_ast_to_hir(exec_list *instructions, struct _mesa_glsl_parse_state *state)
|
|||
|
||||
_mesa_glsl_initialize_variables(instructions, state);
|
||||
_mesa_glsl_initialize_constructors(instructions, state);
|
||||
_mesa_glsl_initialize_functions(instructions, state);
|
||||
|
||||
state->current_function = NULL;
|
||||
|
||||
|
|
|
|||
|
|
@ -0,0 +1,169 @@
|
|||
/*
|
||||
* 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_exp(exec_list *instructions,
|
||||
ir_variable **declarations,
|
||||
const glsl_type *type)
|
||||
{
|
||||
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(ir_unop_exp, type, arg, NULL);
|
||||
|
||||
ir_instruction *inst = new ir_assignment(retval, result, NULL);
|
||||
instructions->push_tail(inst);
|
||||
}
|
||||
|
||||
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);
|
||||
/* FINISHME: log() */
|
||||
/* FINISHME: exp2() */
|
||||
/* FINISHME: log2() */
|
||||
/* FINISHME: sqrt() */
|
||||
/* FINISHME: inversesqrt() */
|
||||
/* FINISHME: abs() */
|
||||
/* FINISHME: sign() */
|
||||
/* FINISHME: floor() */
|
||||
/* FINISHME: 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);
|
||||
}
|
||||
Loading…
Reference in New Issue