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/*
* 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>
*/
#ifndef __COGL_PIPELINE_SNIPPET_PRIVATE_H
#define __COGL_PIPELINE_SNIPPET_PRIVATE_H
#include "cogl-snippet.h"
#include "cogl-queue.h"
/* Enumeration of all the hook points that a snippet can be attached
to within a pipeline. */
typedef enum
{
COGL_PIPELINE_SNIPPET_HOOK_VERTEX,
COGL_PIPELINE_SNIPPET_HOOK_FRAGMENT,
COGL_PIPELINE_SNIPPET_HOOK_TEXTURE_LOOKUP
} CoglPipelineSnippetHook;
typedef struct _CoglPipelineSnippet CoglPipelineSnippet;
COGL_LIST_HEAD (CoglPipelineSnippetList, CoglPipelineSnippet);
struct _CoglPipelineSnippet
{
COGL_LIST_ENTRY (CoglPipelineSnippet) list_node;
/* Hook where this snippet is attached */
CoglPipelineSnippetHook hook;
CoglSnippet *snippet;
};
/* Arguments to pass to _cogl_pipeline_snippet_generate_code() */
typedef struct
{
CoglPipelineSnippetList *snippets;
/* Only snippets at this hook point will be used */
CoglPipelineSnippetHook hook;
/* The final function to chain on to after all of the snippets code
has been run */
const char *chain_function;
/* The name of the final generated function */
const char *final_name;
/* A prefix to insert before each generate function name */
const char *function_prefix;
/* The return type of all of the functions, or NULL to use void */
const char *return_type;
/* A variable to return from the functions. The snippets are
expected to modify this variable. Ignored if return_type is
NULL */
const char *return_variable;
/* The argument names or NULL if there are none */
const char *arguments;
/* The argument types or NULL */
const char *argument_declarations;
/* The string to generate the source into */
GString *source_buf;
} CoglPipelineSnippetData;
void
_cogl_pipeline_snippet_generate_code (const CoglPipelineSnippetData *data);
void
_cogl_pipeline_snippet_list_free (CoglPipelineSnippetList *list);
void
_cogl_pipeline_snippet_list_add (CoglPipelineSnippetList *list,
CoglPipelineSnippetHook hook,
CoglSnippet *snippet);
void
_cogl_pipeline_snippet_list_copy (CoglPipelineSnippetList *dst,
const CoglPipelineSnippetList *src);
void
_cogl_pipeline_snippet_list_hash (CoglPipelineSnippetList *list,
unsigned int *hash);
gboolean
_cogl_pipeline_snippet_list_equal (CoglPipelineSnippetList *list0,
CoglPipelineSnippetList *list1);
#endif /* __COGL_PIPELINE_SNIPPET_PRIVATE_H */
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