Mesa (master): gallium: add PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT

[Christoph Bumiller]

Module: Mesa
Branch: master
Commit: 0fcd2c5e2fa06339de8af80ff8d35e479d61ccf5
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=0fcd2c5e2fa06339de8af80ff8d35e479d61ccf5

Author: Christoph Bumiller <e0425955 at student.tuwien.ac.at>
Date:   Sun Dec 16 17:23:15 2012 +0100

gallium: add PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT

Reviewed-by: Brian Paul <brianp at vmware.com>

---

 src/gallium/docs/source/screen.rst   |    3 +++
 src/gallium/include/pipe/p_defines.h |    3 ++-
 2 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst
index 7a17f69..68d1a35 100644
--- a/src/gallium/docs/source/screen.rst
+++ b/src/gallium/docs/source/screen.rst
@@ -134,6 +134,9 @@ The integer capabilities:
   expected for a pointer returned by transfer_map if the resource is
   PIPE_BUFFER. In other words, the pointer returned by transfer_map is
   always aligned to this value.
+* ``PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT``: Describes the required
+  alignment for pipe_sampler_view::u.buf.first_element, in bytes.
+  If a driver does not support first/last_element, it should return 0.
 
 
 .. _pipe_capf:
diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index bd08ac0..d0db5e4 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -497,7 +497,8 @@ enum pipe_cap {
    PIPE_CAP_TEXTURE_MULTISAMPLE = 74,
    PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT = 75,
    PIPE_CAP_CUBE_MAP_ARRAY = 76,
-   PIPE_CAP_TEXTURE_BUFFER_OBJECTS = 77
+   PIPE_CAP_TEXTURE_BUFFER_OBJECTS = 77,
+   PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT = 78
 };
 
 /**