From 935f93f966aa298c4d4115ac766cb2ff46ad6514 Mon Sep 17 00:00:00 2001
From: Brian <brian@nostromo.localnet.net>
Date: Sat, 24 Mar 2007 16:20:02 -0600
Subject: Free shader-related context state: _mesa_free_shader_state()

---
 src/mesa/main/context.c      |  1 +
 src/mesa/shader/shader_api.c | 16 ++++++++++++++++
 src/mesa/shader/shader_api.h |  3 +++
 3 files changed, 20 insertions(+)

diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index 0cff90c77a6..72c85de7ba2 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -1439,6 +1439,7 @@ _mesa_free_context_data( GLcontext *ctx )
    _mesa_free_viewport_data( ctx );
    _mesa_free_colortables_data( ctx );
    _mesa_free_program_data(ctx);
+   _mesa_free_shader_state(ctx);
    _mesa_free_query_data(ctx);
 
 #if FEATURE_ARB_vertex_buffer_object
diff --git a/src/mesa/shader/shader_api.c b/src/mesa/shader/shader_api.c
index 88aa8c50f5b..002b42721df 100644
--- a/src/mesa/shader/shader_api.c
+++ b/src/mesa/shader/shader_api.c
@@ -211,6 +211,22 @@ _mesa_init_shader_state(GLcontext * ctx)
 }
 
 
+/**
+ * Free the per-context shader-related state.
+ */
+void
+_mesa_free_shader_state(GLcontext *ctx)
+{
+   if (ctx->Shader.CurrentProgram) {
+      ctx->Shader.CurrentProgram->RefCount--;
+      if (ctx->Shader.CurrentProgram->RefCount <= 0) {
+         _mesa_free_shader_program(ctx, ctx->Shader.CurrentProgram);
+         ctx->Shader.CurrentProgram = NULL;
+      }
+   }
+}
+
+
 /**
  * Copy string from <src> to <dst>, up to maxLength characters, returning
  * length of <dst> in <length>.
diff --git a/src/mesa/shader/shader_api.h b/src/mesa/shader/shader_api.h
index 315f60a35f7..16ed1a0c108 100644
--- a/src/mesa/shader/shader_api.h
+++ b/src/mesa/shader/shader_api.h
@@ -38,6 +38,9 @@
 extern void
 _mesa_init_shader_state(GLcontext * ctx);
 
+extern void
+_mesa_free_shader_state(GLcontext *ctx);
+
 extern struct gl_shader_program *
 _mesa_new_shader_program(GLcontext *ctx, GLuint name);
 
-- 
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