Track allocation status of Buffer

[libs/gl.git] / source / core / buffer.h

diff --git a/source/core/buffer.h b/source/core/buffer.h
index cc5e58741c141f1fd5910e1abda23ec68a650a39..47cab8cd5646e2c3842f641bd31dcb4c418aaf6f 100644 (file)
--- a/source/core/buffer.h
+++ b/source/core/buffer.h
@@ -65,6 +65,7 @@ private:
        BufferType type;
        unsigned id;
        unsigned size;
+       bool allocated;
 
        static const Buffer *bound[5];
 
@@ -86,6 +87,10 @@ public:
        be uploaded.  Storage cannot be changed once set. */
        void storage(unsigned);
 
+       /** Allocates storage for the buffer.  The contents are initially undefined.
+       If storage has already been allocated, does nothing. */
+       void allocate();
+
        /** Sets the usage hint of the buffer.  It will take effect the next time
        the buffer's contents are defined. */
        DEPRECATED void set_usage(BufferUsage);