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/*
* Mesa 3-D graphics library
* Version: 6.5
*
* Copyright (C) 2006 Brian Paul All Rights Reserved.
*
* 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 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
* BRIAN PAUL 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.
*/
/**
* \file slang_link.c
* slang linker
* \author Michal Krol
*/
#include "imports.h"
#include "slang_utility.h"
#include "slang_compile.h"
#include "slang_export.h"
#include "slang_link.h"
/*
* slang_uniform_bindings
*/
static GLvoid slang_uniform_bindings_ctr (slang_uniform_bindings *self)
{
self->table = NULL;
self->count = 0;
}
static GLvoid slang_uniform_bindings_dtr (slang_uniform_bindings *self)
{
GLuint i;
for (i = 0; i < self->count; i++)
slang_alloc_free (self->table[i].name);
slang_alloc_free (self->table);
}
static GLboolean slang_uniform_bindings_add (slang_uniform_bindings *self, slang_export_data_quant *q,
const char *name, GLuint index, GLuint address)
{
const GLuint n = self->count;
GLuint i;
for (i = 0; i < n; i++)
if (slang_string_compare (self->table[i].name, name) == 0)
{
self->table[i].address[index] = address;
return GL_TRUE;
}
self->table = (slang_uniform_binding *) slang_alloc_realloc (self->table,
n * sizeof (slang_uniform_binding), (n + 1) * sizeof (slang_uniform_binding));
if (self->table == NULL)
return GL_FALSE;
self->table[n].quant = q;
self->table[n].name = slang_string_duplicate (name);
for (i = 0; i < SLANG_UNIFORM_BINDING_MAX; i++)
self->table[n].address[i] = ~0;
self->table[n].address[index] = address;
if (self->table[n].name == NULL)
return GL_FALSE;
self->count++;
return GL_TRUE;
}
static GLboolean insert_binding (slang_uniform_bindings *bind, slang_export_data_quant *q,
char *name, slang_atom_pool *atoms, GLuint index, GLuint addr)
{
GLuint count, i;
slang_string_concat (name, slang_atom_pool_id (atoms, q->name));
if (q->array_len == 0)
count = 1;
else
count = q->array_len;
for (i = 0; i < count; i++)
{
GLuint save;
save = slang_string_length (name);
if (q->array_len != 0)
_mesa_sprintf (name + slang_string_length (name), "[%d]", i);
if (q->structure != NULL)
{
GLuint save, i;
slang_string_concat (name, ".");
save = slang_string_length (name);
for (i = 0; i < q->u.field_count; i++)
{
if (!insert_binding (bind, &q->structure[i], name, atoms, index, addr))
return GL_FALSE;
name[save] = '\0';
addr += q->structure[i].size;
}
}
else
{
if (!slang_uniform_bindings_add (bind, q, name, index, addr))
return GL_FALSE;
addr += q->size;
}
name[save] = '\0';
}
return GL_TRUE;
}
static GLboolean gather_uniform_bindings (slang_uniform_bindings *bind, slang_export_data_table *tbl,
GLuint index)
{
GLuint i;
for (i = 0; i < tbl->count; i++)
{
char name[1024] = "";
if (!insert_binding (bind, &tbl->entries[i].quant, name, tbl->atoms, index,
tbl->entries[i].address))
return GL_FALSE;
}
return GL_TRUE;
}
/*
* slang_program
*/
GLvoid slang_program_ctr (slang_program *self)
{
slang_uniform_bindings_ctr (&self->uniforms);
}
GLvoid slang_program_dtr (slang_program *self)
{
slang_uniform_bindings_dtr (&self->uniforms);
}
/*
* _slang_link()
*/
GLboolean _slang_link (slang_program *prog, slang_translation_unit **units, GLuint count)
{
GLuint i;
for (i = 0; i < count; i++)
{
GLuint index;
if (units[i]->type == slang_unit_fragment_shader)
index = SLANG_UNIFORM_BINDING_FRAGMENT;
else
index = SLANG_UNIFORM_BINDING_VERTEX;
if (!gather_uniform_bindings (&prog->uniforms, &units[i]->exp_data, index))
return GL_FALSE;
prog->machines[index] = units[i]->machine;
}
return GL_TRUE;
}
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