---
src/mesa/main/fbobject.c | 18 ++++++++++++++++++
src/mesa/main/fbobject.h | 4 ++++
2 files changed, 22 insertions(+)
diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c
index b361967..8bc7ec7 100644
--- a/src/mesa/main/fbobject.c
+++ b/src/mesa/main/fbobject.c
@@ -119,6 +119,24 @@ _mesa_lookup_renderbuffer(struct gl_context *ctx, GLuint
id)
return rb;
}
+/**
+ * A convenience function for direct state access that throws
+ * GL_INVALID_OPERATION if the renderbuffer id is not found in the hash table.
+ */
+struct gl_renderbuffer *
+_mesa_lookup_renderbuffer_err(struct gl_context *ctx, GLuint id,
+ const char *func)
+{
+ struct gl_renderbuffer *rb;
+
+ rb = _mesa_lookup_renderbuffer(ctx, id);
+ if (!rb)
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(non-generated renderbuffer name=%u)", func, id);
+
+ return rb;
+}
+
/**
* Helper routine for getting a gl_framebuffer.
diff --git a/src/mesa/main/fbobject.h b/src/mesa/main/fbobject.h
index 6bd8968..5143743 100644
--- a/src/mesa/main/fbobject.h
+++ b/src/mesa/main/fbobject.h
@@ -64,6 +64,10 @@ _mesa_get_incomplete_framebuffer(void);
extern struct gl_renderbuffer *
_mesa_lookup_renderbuffer(struct gl_context *ctx, GLuint id);
+extern struct gl_renderbuffer *
+_mesa_lookup_renderbuffer_err(struct gl_context *ctx, GLuint id,
+ const char *func);
+
extern struct gl_framebuffer *
_mesa_lookup_framebuffer(struct gl_context *ctx, GLuint id);
--
2.1.0
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