diff options
Diffstat (limited to 'src/gallium/include/pipe/p_defines.h')
| -rw-r--r-- | src/gallium/include/pipe/p_defines.h | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h index f66bbaf6674..8b565522d0f 100644 --- a/src/gallium/include/pipe/p_defines.h +++ b/src/gallium/include/pipe/p_defines.h @@ -229,9 +229,9 @@ enum pipe_transfer_usage { * * See also: * - OpenGL's ARB_map_buffer_range extension, MAP_INVALIDATE_RANGE_BIT flag. - * - Direct3D's D3DLOCK_DISCARD flag. */ - PIPE_TRANSFER_DISCARD = (1 << 8), + PIPE_TRANSFER_DISCARD = (1 << 8), /* DEPRECATED */ + PIPE_TRANSFER_DISCARD_RANGE = (1 << 8), /** * Fail if the resource cannot be mapped immediately. @@ -266,7 +266,22 @@ enum pipe_transfer_usage { * - pipe_context::transfer_flush_region * - OpenGL's ARB_map_buffer_range extension, MAP_FLUSH_EXPLICIT_BIT flag. */ - PIPE_TRANSFER_FLUSH_EXPLICIT = (1 << 11) + PIPE_TRANSFER_FLUSH_EXPLICIT = (1 << 11), + + /** + * Discards all memory backing the resource. + * + * It should not be used with PIPE_TRANSFER_CPU_READ. + * + * This is equivalent to: + * - OpenGL's ARB_map_buffer_range extension, MAP_INVALIDATE_BUFFER_BIT + * - BufferData(NULL) on a GL buffer + * - Direct3D's D3DLOCK_DISCARD flag. + * - WDDM's D3DDDICB_LOCKFLAGS.Discard flag. + * - D3D10 DDI's D3D10_DDI_MAP_WRITE_DISCARD flag + * - D3D10's D3D10_MAP_WRITE_DISCARD flag. + */ + PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE = (1 << 12) }; |