mirror of
https://github.com/brl/mutter.git
synced 2024-12-23 19:42:05 +00:00
ed510dbe6d
Previously CoglPipelineSnippetList was using the BSD embedded list type with a mini struct to combine the list node with a pointer to the snippet. This is effectively equivalent to just using a GList so we might as well do that. This will help if we eventually want to get rid of cogl-queue.h Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 54a168f3c7829c427d54ab517533bb9f7384d022)
281 lines
8.4 KiB
C
281 lines
8.4 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* An object oriented GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Copyright (C) 2011, 2013 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)
|
|
{
|
|
GList *first_snippet, *l;
|
|
CoglSnippet *snippet;
|
|
int snippet_num = 0;
|
|
int n_snippets = 0;
|
|
|
|
first_snippet = data->snippets->entries;
|
|
|
|
/* First count the number of snippets so we can easily tell when
|
|
we're at the last one */
|
|
for (l = data->snippets->entries; l; l = l->next)
|
|
{
|
|
snippet = l->data;
|
|
|
|
if (snippet->hook == data->hook)
|
|
{
|
|
/* Don't bother processing any previous snippets if we reach
|
|
one that has a replacement */
|
|
if (snippet->replace)
|
|
{
|
|
n_snippets = 1;
|
|
first_snippet = l;
|
|
}
|
|
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 (l = first_snippet; snippet_num < n_snippets; l = l->next)
|
|
{
|
|
snippet = l->data;
|
|
|
|
if (snippet->hook == data->hook)
|
|
{
|
|
const char *source;
|
|
|
|
if ((source = cogl_snippet_get_declarations (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)))
|
|
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)))
|
|
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)))
|
|
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");
|
|
snippet_num++;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_snippet_generate_declarations (GString *declarations_buf,
|
|
CoglSnippetHook hook,
|
|
CoglPipelineSnippetList *snippets)
|
|
{
|
|
GList *l;
|
|
|
|
for (l = snippets->entries; l; l = l->next)
|
|
{
|
|
CoglSnippet *snippet = l->data;
|
|
|
|
if (snippet->hook == hook)
|
|
{
|
|
const char *source;
|
|
|
|
if ((source = cogl_snippet_get_declarations (snippet)))
|
|
g_string_append (declarations_buf, source);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_snippet_list_free (CoglPipelineSnippetList *list)
|
|
{
|
|
GList *l, *tmp;
|
|
|
|
for (l = list->entries; l; l = tmp)
|
|
{
|
|
tmp = l->next;
|
|
|
|
cogl_object_unref (l->data);
|
|
g_list_free_1 (l);
|
|
}
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_snippet_list_add (CoglPipelineSnippetList *list,
|
|
CoglSnippet *snippet)
|
|
{
|
|
list->entries = g_list_append (list->entries, cogl_object_ref (snippet));
|
|
|
|
_cogl_snippet_make_immutable (snippet);
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_snippet_list_copy (CoglPipelineSnippetList *dst,
|
|
const CoglPipelineSnippetList *src)
|
|
{
|
|
GQueue queue = G_QUEUE_INIT;
|
|
const GList *l;
|
|
|
|
for (l = src->entries; l; l = l->next)
|
|
g_queue_push_tail (&queue, cogl_object_ref (l->data));
|
|
|
|
dst->entries = queue.head;
|
|
}
|
|
|
|
void
|
|
_cogl_pipeline_snippet_list_hash (CoglPipelineSnippetList *list,
|
|
unsigned int *hash)
|
|
{
|
|
GList *l;
|
|
|
|
for (l = list->entries; l; l = l->next)
|
|
{
|
|
CoglSnippet *snippet = l->data;
|
|
|
|
*hash = _cogl_util_one_at_a_time_hash (*hash,
|
|
&snippet,
|
|
sizeof (CoglSnippet *));
|
|
}
|
|
}
|
|
|
|
CoglBool
|
|
_cogl_pipeline_snippet_list_equal (CoglPipelineSnippetList *list0,
|
|
CoglPipelineSnippetList *list1)
|
|
{
|
|
GList *l0, *l1;
|
|
|
|
for (l0 = list0->entries, l1 = list1->entries;
|
|
l0 && l1;
|
|
l0 = l0->next, l1 = l1->next)
|
|
if (l0->data != l1->data)
|
|
return FALSE;
|
|
|
|
return l0 == NULL && l1 == NULL;
|
|
}
|