1 files changed, 85 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_iterate.c b/src/gallium/auxiliary/tgsi/tgsi_iterate.c
new file mode 100644
index 0000000000..d88c2558d8
--- /dev/null
+++ b/src/gallium/auxiliary/tgsi/tgsi_iterate.c
@@ -0,0 +1,85 @@
+/**************************************************************************
+ * 
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 "util/u_debug.h"
+#include "tgsi_iterate.h"
+
+boolean
+tgsi_iterate_shader(
+   const struct tgsi_token *tokens,
+   struct tgsi_iterate_context *ctx )
+{
+   struct tgsi_parse_context parse;
+
+   if (tgsi_parse_init( &parse, tokens ) != TGSI_PARSE_OK)
+      return FALSE;
+
+   ctx->processor = parse.FullHeader.Processor;
+   ctx->version = parse.FullVersion.Version;
+
+   if (ctx->prolog)
+      if (!ctx->prolog( ctx ))
+         goto fail;
+
+   while (!tgsi_parse_end_of_tokens( &parse )) {
+      tgsi_parse_token( &parse );
+
+      switch (parse.FullToken.Token.Type) {
+      case TGSI_TOKEN_TYPE_INSTRUCTION:
+         if (ctx->iterate_instruction)
+            if (!ctx->iterate_instruction( ctx, &parse.FullToken.FullInstruction ))
+               goto fail;
+         break;
+
+      case TGSI_TOKEN_TYPE_DECLARATION:
+         if (ctx->iterate_declaration)
+            if (!ctx->iterate_declaration( ctx, &parse.FullToken.FullDeclaration ))
+               goto fail;
+         break;
+
+      case TGSI_TOKEN_TYPE_IMMEDIATE:
+         if (ctx->iterate_immediate)
+            if (!ctx->iterate_immediate( ctx, &parse.FullToken.FullImmediate ))
+               goto fail;
+         break;
+
+      default:
+         assert( 0 );
+      }
+   }
+
+   if (ctx->epilog)
+      if (!ctx->epilog( ctx ))
+         goto fail;
+
+   tgsi_parse_free( &parse );
+   return TRUE;
+
+fail:
+   tgsi_parse_free( &parse );
+   return FALSE;
+}