mutter/cogl/cogl-pipeline-snippet-private.h

/*
 * Cogl
 *
 * A Low Level GPU Graphics and Utilities API
 *
 * Copyright (C) 2011, 2013 Intel Corporation.
 *
 * 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 THE AUTHORS OR COPYRIGHT HOLDERS
 * 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.
 *
 *
 *
 * Authors:
 *   Neil Roberts <neil@linux.intel.com>
 */

#ifndef __COGL_PIPELINE_SNIPPET_PRIVATE_H
#define __COGL_PIPELINE_SNIPPET_PRIVATE_H

#include <glib.h>

#include "cogl-snippet.h"

typedef struct
{
  GList *entries;
} CoglPipelineSnippetList;

/* Arguments to pass to _cogl_pipeline_snippet_generate_code() */
typedef struct
{
  CoglPipelineSnippetList *snippets;

  /* Only snippets at this hook point will be used */
  CoglSnippetHook 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;

  /* If this is TRUE then it won't allocate a separate variable for
     the return value. Instead it is expected that the snippet will
     modify one of the argument variables directly and that will be
     returned */
  CoglBool return_variable_is_argument;

  /* 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_generate_declarations (GString *declarations_buf,
                                              CoglSnippetHook hook,
                                              CoglPipelineSnippetList *list);

void
_cogl_pipeline_snippet_list_free (CoglPipelineSnippetList *list);

void
_cogl_pipeline_snippet_list_add (CoglPipelineSnippetList *list,
                                 CoglSnippet *snippet);

void
_cogl_pipeline_snippet_list_copy (CoglPipelineSnippetList *dst,
                                  const CoglPipelineSnippetList *src);

void
_cogl_pipeline_snippet_list_hash (CoglPipelineSnippetList *list,
                                  unsigned int *hash);

CoglBool
_cogl_pipeline_snippet_list_equal (CoglPipelineSnippetList *list0,
                                   CoglPipelineSnippetList *list1);

#endif /* __COGL_PIPELINE_SNIPPET_PRIVATE_H */