From 4cdf66f89b2beb13cbd461f848fb433b4af76566 Mon Sep 17 00:00:00 2001 From: Neil Roberts Date: Fri, 25 Nov 2011 15:31:21 +0000 Subject: pipeline: Move the snippet source loop into a common function The two loops that generate the functions for the snippets in the fragend and vertend are very similar so to avoid code duplication this patch moves the logic to its own function in a new cogl-pipeline-snippet.c file. Reviewed-by: Robert Bragg --- cogl/cogl-pipeline-snippet.c | 160 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 160 insertions(+) create mode 100644 cogl/cogl-pipeline-snippet.c (limited to 'cogl/cogl-pipeline-snippet.c') diff --git a/cogl/cogl-pipeline-snippet.c b/cogl/cogl-pipeline-snippet.c new file mode 100644 index 00000000..b7a694c7 --- /dev/null +++ b/cogl/cogl-pipeline-snippet.c @@ -0,0 +1,160 @@ +/* + * 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 + * . + * + * + * + * Authors: + * Neil Roberts + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include + +#include "cogl-pipeline-snippet-private.h" + +/* Helper functions that are used by both GLSL pipeline backends */ + +void +_cogl_pipeline_snippet_generate_code (const CoglPipelineSnippetData *data) +{ + CoglPipelineSnippet *snippet; + int snippet_num = 0; + + COGL_LIST_FOREACH (snippet, data->snippets, list_node) + if (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 (COGL_LIST_NEXT (snippet, list_node)) + 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) + 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"); + + snippet_num++; + } + + /* If there weren't any snippets then generate a stub function with + the final name */ + if (snippet_num == 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 : ""); + } +} -- cgit v1.2.1