mutter/cogl/cogl-pipeline-snippet.c
Robert Bragg 54735dec84 Switch use of primitive glib types to c99 equivalents
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)
2012-08-06 14:27:39 +01:00

278 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;
}