diff options
| -rw-r--r-- | src/gallium/auxiliary/util/u_staging.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/util/u_staging.h b/src/gallium/auxiliary/util/u_staging.h index f5976dadb15..602faa2971d 100644 --- a/src/gallium/auxiliary/util/u_staging.h +++ b/src/gallium/auxiliary/util/u_staging.h @@ -1,4 +1,12 @@ -/* Implement transfers using staging resources like in DirectX 10/11 */ +/* Direct3D 10/11 has no concept of transfers. Applications instead + * create resources with a STAGING or DYNAMIC usage, copy between them + * and the real resource and use Map to map the STAGING/DYNAMIC resource. + * + * This util module allows to implement Gallium drivers as a Direct3D + * driver would be implemented: transfers allocate a resource with + * PIPE_USAGE_STAGING, and copy the data between it and the real resource + * with resource_copy_region. + */ #ifndef U_STAGING_H #define U_STAGING_H |