gallium: add void *user_buffer to pipe_constant_buffer

This reduces CPU overhead when updating constants.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/gallium/include/pipe/p_state.h b/src/gallium/include/pipe/p_state.h
index ceb6c6b7ef1..e969b74eff6 100644
--- a/src/gallium/include/pipe/p_state.h
+++ b/src/gallium/include/pipe/p_state.h
@@ -459,6 +459,7 @@ struct pipe_constant_buffer {
    struct pipe_resource *buffer; /**< the actual buffer */
    unsigned buffer_offset; /**< offset to start of data in buffer, in bytes */
    unsigned buffer_size;   /**< how much data can be read in shader */
+   const void *user_buffer;  /**< pointer to a user buffer if buffer == NULL */
 };