54735dec84
The coding style has for a long time said to avoid using redundant glib
data types such as gint or gchar etc because we feel that they make the
code look unnecessarily foreign to developers coming from outside of the
Gnome developer community.
Note: When we tried to find the historical rationale for the types we
just found that they were apparently only added for consistent syntax
highlighting which didn't seem that compelling.
Up until now we have been continuing to use some of the platform
specific type such as gint{8,16,32,64} and gsize but this patch switches
us over to using the standard c99 equivalents instead so we can further
ensure that our code looks familiar to the widest range of C developers
who might potentially contribute to Cogl.
So instead of using the gint{8,16,32,64} and guint{8,16,32,64} types this
switches all Cogl code to instead use the int{8,16,32,64}_t and
uint{8,16,32,64}_t c99 types instead.
Instead of gsize we now use size_t
For now we are not going to use the c99 _Bool type and instead we have
introduced a new CoglBool type to use instead of gboolean.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 5967dad2400d32ca6319cef6cb572e81bf2c15f0)
277 lines
8.7 KiB
C
277 lines
8.7 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* An object oriented GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Copyright (C) 2011 Intel Corporation.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library. If not, see
|
|
* <http://www.gnu.org/licenses/>.
|
|
*
|
|
*
|
|
*
|
|
* Authors:
|
|
* Neil Roberts <neil@linux.intel.com>
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <string.h>
|
|
|
|
#include "cogl-types.h"
|
|
#include "cogl-pipeline-snippet-private.h"
|
|
#include "cogl-snippet-private.h"
|
|
#include "cogl-util.h"
|
|
|
|
/* Helper functions that are used by both GLSL pipeline backends */
|
|
|
|
void
|
|
_cogl_pipeline_snippet_generate_code (const CoglPipelineSnippetData *data)
|
|
{
|
|
CoglPipelineSnippet *first_snippet, *snippet;
|
|
int snippet_num = 0;
|
|
int n_snippets = 0;
|
|
|
|
first_snippet = COGL_LIST_FIRST (data->snippets);
|
|
|
|
/* First count the number of snippets so we can easily tell when
|
|
we're at the last one */
|
|
COGL_LIST_FOREACH (snippet, data->snippets, list_node)
|
|
if (snippet->snippet->hook == data->hook)
|
|
{
|
|
/* Don't bother processing any previous snippets if we reach
|
|
one that has a replacement */
|
|
if (snippet->snippet->replace)
|
|
{
|
|
n_snippets = 1;
|
|
first_snippet = snippet;
|
|
}
|
|
else
|
|
n_snippets++;
|
|
}
|
|
|
|
/* If there weren't any snippets then generate a stub function with
|
|
the final name */
|
|
if (n_snippets == 0)
|
|
{
|
|
if (data->return_type)
|
|
g_string_append_printf (data->source_buf,
|
|
"\n"
|
|
"%s\n"
|
|
"%s (%s)\n"
|
|
"{\n"
|
|
" return %s (%s);\n"
|
|
"}\n",
|
|
data->return_type,
|
|
data->final_name,
|
|
data->argument_declarations ?
|
|
data->argument_declarations : "",
|
|
data->chain_function,
|
|
data->arguments ? data->arguments : "");
|
|
else
|
|
g_string_append_printf (data->source_buf,
|
|
"\n"
|
|
"void\n"
|
|
"%s (%s)\n"
|
|
"{\n"
|
|
" %s (%s);\n"
|
|
"}\n",
|
|
data->final_name,
|
|
data->argument_declarations ?
|
|
data->argument_declarations : "",
|
|
data->chain_function,
|
|
data->arguments ? data->arguments : "");
|
|
|
|
return;
|
|
}
|
|
|
|
for (snippet = first_snippet, snippet_num = 0;
|
|
snippet_num < n_snippets;
|
|
snippet = COGL_LIST_NEXT (snippet, list_node), snippet_num++)
|
|
if (snippet->snippet->hook == data->hook)
|
|
{
|
|
const char *source;
|
|
|
|
if ((source = cogl_snippet_get_declarations (snippet->snippet)))
|
|
g_string_append (data->source_buf, source);
|
|
|
|
g_string_append_printf (data->source_buf,
|
|
"\n"
|
|
"%s\n",
|
|
data->return_type ?
|
|
data->return_type :
|
|
"void");
|
|
|
|
if (snippet_num + 1 < n_snippets)
|
|
g_string_append_printf (data->source_buf,
|
|
"%s_%i",
|
|
data->function_prefix,
|
|
snippet_num);
|
|
else
|
|
g_string_append (data->source_buf, data->final_name);
|
|
|
|
g_string_append (data->source_buf, " (");
|
|
|
|
if (data->argument_declarations)
|
|
g_string_append (data->source_buf, data->argument_declarations);
|
|
|
|
g_string_append (data->source_buf,
|
|
")\n"
|
|
"{\n");
|
|
|
|
if (data->return_type && !data->return_variable_is_argument)
|
|
g_string_append_printf (data->source_buf,
|
|
" %s %s;\n"
|
|
"\n",
|
|
data->return_type,
|
|
data->return_variable);
|
|
|
|
if ((source = cogl_snippet_get_pre (snippet->snippet)))
|
|
g_string_append (data->source_buf, source);
|
|
|
|
/* Chain on to the next function, or bypass it if there is
|
|
a replace string */
|
|
if ((source = cogl_snippet_get_replace (snippet->snippet)))
|
|
g_string_append (data->source_buf, source);
|
|
else
|
|
{
|
|
g_string_append (data->source_buf, " ");
|
|
|
|
if (data->return_type)
|
|
g_string_append_printf (data->source_buf,
|
|
"%s = ",
|
|
data->return_variable);
|
|
|
|
if (snippet_num > 0)
|
|
g_string_append_printf (data->source_buf,
|
|
"%s_%i",
|
|
data->function_prefix,
|
|
snippet_num - 1);
|
|
else
|
|
g_string_append (data->source_buf, data->chain_function);
|
|
|
|
g_string_append (data->source_buf, " (");
|
|
|
|
if (data->arguments)
|
|
g_string_append (data->source_buf, data->arguments);
|
|
|
|
g_string_append (data->source_buf, ");\n");
|
|
}
|
|
|
|
if ((source = cogl_snippet_get_post (snippet->snippet)))
|
|
g_string_append (data->source_buf, source);
|
|
|
|
if (data->return_type)
|
|
g_string_append_printf (data->source_buf,
|
|
" return %s;\n",
|
|
data->return_variable);
|
|
|
|
g_string_append (data->source_buf, "}\n");
|
|
}
|
|
}
|
|
|
|
static void
|
|
_cogl_pipeline_snippet_free (CoglPipelineSnippet *pipeline_snippet)
|
|
{
|
|
cogl_object_unref (pipeline_snippet->snippet);
|
|
g_slice_free (CoglPipelineSnippet, pipeline_snippet);
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_snippet_list_free (CoglPipelineSnippetList *list)
|
|
{
|
|
CoglPipelineSnippet *pipeline_snippet, *tmp;
|
|
|
|
COGL_LIST_FOREACH_SAFE (pipeline_snippet, list, list_node, tmp)
|
|
_cogl_pipeline_snippet_free (pipeline_snippet);
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_snippet_list_add (CoglPipelineSnippetList *list,
|
|
CoglSnippet *snippet)
|
|
{
|
|
CoglPipelineSnippet *pipeline_snippet = g_slice_new (CoglPipelineSnippet);
|
|
|
|
pipeline_snippet->snippet = cogl_object_ref (snippet);
|
|
|
|
_cogl_snippet_make_immutable (pipeline_snippet->snippet);
|
|
|
|
if (COGL_LIST_EMPTY (list))
|
|
COGL_LIST_INSERT_HEAD (list, pipeline_snippet, list_node);
|
|
else
|
|
{
|
|
CoglPipelineSnippet *tail;
|
|
|
|
for (tail = COGL_LIST_FIRST (list);
|
|
COGL_LIST_NEXT (tail, list_node);
|
|
tail = COGL_LIST_NEXT (tail, list_node));
|
|
|
|
COGL_LIST_INSERT_AFTER (tail, pipeline_snippet, list_node);
|
|
}
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_snippet_list_copy (CoglPipelineSnippetList *dst,
|
|
const CoglPipelineSnippetList *src)
|
|
{
|
|
CoglPipelineSnippet *tail = NULL;
|
|
const CoglPipelineSnippet *l;
|
|
|
|
COGL_LIST_INIT (dst);
|
|
|
|
COGL_LIST_FOREACH (l, src, list_node)
|
|
{
|
|
CoglPipelineSnippet *copy = g_slice_dup (CoglPipelineSnippet, l);
|
|
|
|
cogl_object_ref (copy->snippet);
|
|
|
|
if (tail)
|
|
COGL_LIST_INSERT_AFTER (tail, copy, list_node);
|
|
else
|
|
COGL_LIST_INSERT_HEAD (dst, copy, list_node);
|
|
|
|
tail = copy;
|
|
}
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_snippet_list_hash (CoglPipelineSnippetList *list,
|
|
unsigned int *hash)
|
|
{
|
|
CoglPipelineSnippet *l;
|
|
|
|
COGL_LIST_FOREACH (l, list, list_node)
|
|
{
|
|
*hash = _cogl_util_one_at_a_time_hash (*hash,
|
|
&l->snippet,
|
|
sizeof (CoglSnippet *));
|
|
}
|
|
}
|
|
|
|
CoglBool
|
|
_cogl_pipeline_snippet_list_equal (CoglPipelineSnippetList *list0,
|
|
CoglPipelineSnippetList *list1)
|
|
{
|
|
CoglPipelineSnippet *l0, *l1;
|
|
|
|
for (l0 = COGL_LIST_FIRST (list0), l1 = COGL_LIST_FIRST (list1);
|
|
l0 && l1;
|
|
l0 = COGL_LIST_NEXT (l0, list_node), l1 = COGL_LIST_NEXT (l1, list_node))
|
|
if (l0->snippet != l1->snippet)
|
|
return FALSE;
|
|
|
|
return l0 == NULL && l1 == NULL;
|
|
}
|