glsl: Introduce sl_pp_context and maintain a reuseable pool of strings.

1 files changed, 52 insertions, 0 deletions

diff --git a/src/glsl/pp/sl_pp_context.h b/src/glsl/pp/sl_pp_context.h
new file mode 100644
index 0000000000..3a1e215625
--- /dev/null
+++ b/src/glsl/pp/sl_pp_context.h
@@ -0,0 +1,52 @@
+/**************************************************************************
+ * 
+ * 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.
+ * 
+ **************************************************************************/
+
+#ifndef SL_PP_CONTEXT_H
+#define SL_PP_CONTEXT_H
+
+
+struct sl_pp_context {
+   char *cstr_pool;
+   unsigned int cstr_pool_max;
+   unsigned int cstr_pool_len;
+};
+
+void
+sl_pp_context_init(struct sl_pp_context *context);
+
+void
+sl_pp_context_destroy(struct sl_pp_context *context);
+
+int
+sl_pp_context_add_str(struct sl_pp_context *context,
+                      const char *str);
+
+const char *
+sl_pp_context_cstr(const struct sl_pp_context *context,
+                   int offset);
+
+#endif /* SL_PP_VERSION_H */