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-rw-r--r--src/mesa/main/mtypes.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 368acde7a1..276bc42eba 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1506,6 +1506,7 @@ struct gl_buffer_object
GLsizeiptrARB Size; /**< Size of storage in bytes */
GLubyte *Data; /**< Location of storage either in RAM or VRAM. */
GLboolean OnCard; /**< Is buffer in VRAM? (hardware drivers) */
+ GLboolean Written; /**< Ever written to? (for debugging) */
};