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-rw-r--r--mesalib/src/glsl/pp/sl_pp_pragma.c109
1 files changed, 109 insertions, 0 deletions
diff --git a/mesalib/src/glsl/pp/sl_pp_pragma.c b/mesalib/src/glsl/pp/sl_pp_pragma.c
new file mode 100644
index 000000000..caf4c63f6
--- /dev/null
+++ b/mesalib/src/glsl/pp/sl_pp_pragma.c
@@ -0,0 +1,109 @@
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 (including the
+ * next paragraph) 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
+ *
+ **************************************************************************/
+
+#include <stdlib.h>
+#include <string.h>
+#include "sl_pp_context.h"
+#include "sl_pp_process.h"
+
+
+int
+sl_pp_process_pragma(struct sl_pp_context *context,
+ const struct sl_pp_token_info *input,
+ unsigned int first,
+ unsigned int last,
+ struct sl_pp_process_state *state)
+{
+ int pragma_name = -1;
+ struct sl_pp_token_info out;
+ int arg_name = -1;
+
+ if (first < last && input[first].token == SL_PP_IDENTIFIER) {
+ pragma_name = input[first].data.identifier;
+ first++;
+ }
+ if (pragma_name == -1) {
+ return 0;
+ }
+
+ if (pragma_name == context->dict.optimize) {
+ out.token = SL_PP_PRAGMA_OPTIMIZE;
+ } else if (pragma_name == context->dict.debug) {
+ out.token = SL_PP_PRAGMA_DEBUG;
+ } else {
+ return 0;
+ }
+
+ while (first < last && input[first].token == SL_PP_WHITESPACE) {
+ first++;
+ }
+
+ if (first < last && input[first].token == SL_PP_LPAREN) {
+ first++;
+ } else {
+ return 0;
+ }
+
+ while (first < last && input[first].token == SL_PP_WHITESPACE) {
+ first++;
+ }
+
+ if (first < last && input[first].token == SL_PP_IDENTIFIER) {
+ arg_name = input[first].data.identifier;
+ first++;
+ }
+ if (arg_name == -1) {
+ return 0;
+ }
+
+ if (arg_name == context->dict.off) {
+ out.data.pragma = 0;
+ } else if (arg_name == context->dict.on) {
+ out.data.pragma = 1;
+ } else {
+ return 0;
+ }
+
+ while (first < last && input[first].token == SL_PP_WHITESPACE) {
+ first++;
+ }
+
+ if (first < last && input[first].token == SL_PP_RPAREN) {
+ first++;
+ } else {
+ return 0;
+ }
+
+ /* Ignore the tokens that follow. */
+
+ if (sl_pp_process_out(state, &out)) {
+ strcpy(context->error_msg, "out of memory");
+ return -1;
+ }
+
+ return 0;
+}