move everything into a cogl/ directory
This commit is contained in:
Rui Matos
286
cogl/cogl/cogl-pipeline-snippet.c
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286
cogl/cogl/cogl-pipeline-snippet.c
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/*
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* Cogl
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*
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* A Low Level GPU Graphics and Utilities API
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*
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* Copyright (C) 2011, 2013 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*
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*
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* Authors:
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* Neil Roberts <neil@linux.intel.com>
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include "cogl-types.h"
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#include "cogl-pipeline-snippet-private.h"
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#include "cogl-snippet-private.h"
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#include "cogl-util.h"
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/* Helper functions that are used by both GLSL pipeline backends */
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void
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_cogl_pipeline_snippet_generate_code (const CoglPipelineSnippetData *data)
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{
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GList *first_snippet, *l;
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CoglSnippet *snippet;
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int snippet_num = 0;
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int n_snippets = 0;
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first_snippet = data->snippets->entries;
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/* First count the number of snippets so we can easily tell when
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we're at the last one */
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for (l = data->snippets->entries; l; l = l->next)
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{
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snippet = l->data;
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if (snippet->hook == data->hook)
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{
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/* Don't bother processing any previous snippets if we reach
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one that has a replacement */
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if (snippet->replace)
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{
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n_snippets = 1;
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first_snippet = l;
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}
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else
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n_snippets++;
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}
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}
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/* If there weren't any snippets then generate a stub function with
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the final name */
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if (n_snippets == 0)
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{
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if (data->return_type)
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g_string_append_printf (data->source_buf,
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"\n"
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"%s\n"
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"%s (%s)\n"
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"{\n"
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" return %s (%s);\n"
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"}\n",
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data->return_type,
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data->final_name,
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data->argument_declarations ?
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data->argument_declarations : "",
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data->chain_function,
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data->arguments ? data->arguments : "");
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else
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g_string_append_printf (data->source_buf,
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"\n"
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"void\n"
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"%s (%s)\n"
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"{\n"
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" %s (%s);\n"
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"}\n",
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data->final_name,
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data->argument_declarations ?
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data->argument_declarations : "",
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data->chain_function,
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data->arguments ? data->arguments : "");
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return;
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}
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for (l = first_snippet; snippet_num < n_snippets; l = l->next)
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{
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snippet = l->data;
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if (snippet->hook == data->hook)
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{
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const char *source;
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if ((source = cogl_snippet_get_declarations (snippet)))
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g_string_append (data->source_buf, source);
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g_string_append_printf (data->source_buf,
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"\n"
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"%s\n",
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data->return_type ?
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data->return_type :
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"void");
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if (snippet_num + 1 < n_snippets)
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g_string_append_printf (data->source_buf,
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"%s_%i",
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data->function_prefix,
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snippet_num);
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else
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g_string_append (data->source_buf, data->final_name);
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g_string_append (data->source_buf, " (");
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if (data->argument_declarations)
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g_string_append (data->source_buf, data->argument_declarations);
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g_string_append (data->source_buf,
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")\n"
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"{\n");
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if (data->return_type && !data->return_variable_is_argument)
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g_string_append_printf (data->source_buf,
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" %s %s;\n"
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"\n",
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data->return_type,
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data->return_variable);
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if ((source = cogl_snippet_get_pre (snippet)))
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g_string_append (data->source_buf, source);
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/* Chain on to the next function, or bypass it if there is
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a replace string */
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if ((source = cogl_snippet_get_replace (snippet)))
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g_string_append (data->source_buf, source);
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else
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{
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g_string_append (data->source_buf, " ");
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if (data->return_type)
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g_string_append_printf (data->source_buf,
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"%s = ",
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data->return_variable);
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if (snippet_num > 0)
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g_string_append_printf (data->source_buf,
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"%s_%i",
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data->function_prefix,
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snippet_num - 1);
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else
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g_string_append (data->source_buf, data->chain_function);
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g_string_append (data->source_buf, " (");
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if (data->arguments)
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g_string_append (data->source_buf, data->arguments);
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g_string_append (data->source_buf, ");\n");
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}
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if ((source = cogl_snippet_get_post (snippet)))
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g_string_append (data->source_buf, source);
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if (data->return_type)
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g_string_append_printf (data->source_buf,
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" return %s;\n",
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data->return_variable);
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g_string_append (data->source_buf, "}\n");
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snippet_num++;
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}
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}
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}
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void
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_cogl_pipeline_snippet_generate_declarations (GString *declarations_buf,
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CoglSnippetHook hook,
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CoglPipelineSnippetList *snippets)
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{
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GList *l;
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for (l = snippets->entries; l; l = l->next)
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{
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CoglSnippet *snippet = l->data;
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if (snippet->hook == hook)
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{
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const char *source;
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if ((source = cogl_snippet_get_declarations (snippet)))
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g_string_append (declarations_buf, source);
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}
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}
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}
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void
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_cogl_pipeline_snippet_list_free (CoglPipelineSnippetList *list)
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{
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GList *l, *tmp;
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for (l = list->entries; l; l = tmp)
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{
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tmp = l->next;
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cogl_object_unref (l->data);
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g_list_free_1 (l);
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}
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}
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void
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_cogl_pipeline_snippet_list_add (CoglPipelineSnippetList *list,
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CoglSnippet *snippet)
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{
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list->entries = g_list_append (list->entries, cogl_object_ref (snippet));
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_cogl_snippet_make_immutable (snippet);
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}
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void
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_cogl_pipeline_snippet_list_copy (CoglPipelineSnippetList *dst,
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const CoglPipelineSnippetList *src)
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{
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GQueue queue = G_QUEUE_INIT;
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const GList *l;
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for (l = src->entries; l; l = l->next)
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g_queue_push_tail (&queue, cogl_object_ref (l->data));
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dst->entries = queue.head;
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}
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void
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_cogl_pipeline_snippet_list_hash (CoglPipelineSnippetList *list,
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unsigned int *hash)
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{
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GList *l;
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for (l = list->entries; l; l = l->next)
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{
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CoglSnippet *snippet = l->data;
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*hash = _cogl_util_one_at_a_time_hash (*hash,
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&snippet,
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sizeof (CoglSnippet *));
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}
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}
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CoglBool
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_cogl_pipeline_snippet_list_equal (CoglPipelineSnippetList *list0,
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CoglPipelineSnippetList *list1)
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{
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GList *l0, *l1;
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for (l0 = list0->entries, l1 = list1->entries;
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l0 && l1;
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l0 = l0->next, l1 = l1->next)
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if (l0->data != l1->data)
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return FALSE;
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return l0 == NULL && l1 == NULL;
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}
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