1 files changed, 127 insertions, 0 deletions
diff --git a/src/glsl/pp/sl_pp_line.c b/src/glsl/pp/sl_pp_line.c
new file mode 100644
index 0000000000..6f7e9eb562
--- /dev/null
+++ b/src/glsl/pp/sl_pp_line.c
@@ -0,0 +1,127 @@
+/**************************************************************************
+ * 
+ * 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_public.h"
+#include "sl_pp_process.h"
+
+
+int
+sl_pp_process_line(struct sl_pp_context *context,
+                   struct sl_pp_token_buffer *buffer,
+                   struct sl_pp_process_state *pstate)
+{
+   struct sl_pp_process_state state;
+   int found_end = 0;
+   int line_number = -1;
+   int file_number = -1;
+   unsigned int line;
+   unsigned int file;
+
+   memset(&state, 0, sizeof(state));
+   while (!found_end) {
+      struct sl_pp_token_info input;
+
+      sl_pp_token_buffer_get(buffer, &input);
+      switch (input.token) {
+      case SL_PP_WHITESPACE:
+         break;
+
+      case SL_PP_IDENTIFIER:
+         sl_pp_token_buffer_unget(buffer, &input);
+         if (sl_pp_macro_expand(context, buffer, NULL, &state, sl_pp_macro_expand_normal)) {
+            free(state.out);
+            return -1;
+         }
+         break;
+
+      case SL_PP_NEWLINE:
+      case SL_PP_EOF:
+         found_end = 1;
+         break;
+
+      default:
+         if (sl_pp_process_out(&state, &input)) {
+            strcpy(context->error_msg, "out of memory");
+            free(state.out);
+            return -1;
+         }
+      }
+   }
+
+   if (state.out_len > 0 && state.out[0].token == SL_PP_UINT) {
+      line_number = state.out[0].data._uint;
+   } else {
+      strcpy(context->error_msg, "expected a number after `#line'");
+      free(state.out);
+      return -1;
+   }
+
+   if (state.out_len > 1) {
+      if (state.out[1].token == SL_PP_UINT) {
+         file_number = state.out[1].data._uint;
+      } else {
+         strcpy(context->error_msg, "expected a number after line number");
+         free(state.out);
+         return -1;
+      }
+
+      if (state.out_len > 2) {
+         strcpy(context->error_msg, "expected an end of line after file number");
+         free(state.out);
+         return -1;
+      }
+   }
+
+   free(state.out);
+
+   line = atoi(sl_pp_context_cstr(context, line_number));
+   if (file_number != -1) {
+      file = atoi(sl_pp_context_cstr(context, file_number));
+   } else {
+      file = context->file;
+   }
+
+   if (context->line != line || context->file != file) {
+      struct sl_pp_token_info ti;
+
+      ti.token = SL_PP_LINE;
+      ti.data.line.lineno = line;
+      ti.data.line.fileno = file;
+      if (sl_pp_process_out(pstate, &ti)) {
+         strcpy(context->error_msg, "out of memory");
+         return -1;
+      }
+
+      context->line = line;
+      context->file = file;
+   }
+
+   return 0;
+}