Module: Mesa Branch: master Commit: cca5617348ad2544f2cf8e201828de3fa942df3c URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=cca5617348ad2544f2cf8e201828de3fa942df3c
Author: Dave Airlie <[email protected]> Date: Wed Nov 1 14:17:49 2017 +1000 gallium: add hw atomic buffer binding API. This API binds atomic buffers for all bound shaders (as per the GL semantics). This is needed to support cross shader hw atomic counters. Reviewed-by: Nicolai Hähnle <[email protected]> Reviewed-by: Marek Olšák <[email protected]> Tested-By: Gert Wollny <[email protected]> Signed-off-by: Dave Airlie <[email protected]> --- src/gallium/docs/source/context.rst | 8 ++++++++ src/gallium/include/pipe/p_context.h | 16 ++++++++++++++++ 2 files changed, 24 insertions(+) diff --git a/src/gallium/docs/source/context.rst b/src/gallium/docs/source/context.rst index 8aee21b2ed..9d069b37d7 100644 --- a/src/gallium/docs/source/context.rst +++ b/src/gallium/docs/source/context.rst @@ -145,6 +145,14 @@ to the array index which is used for sampling. * ``sampler_view_destroy`` destroys a sampler view and releases its reference to associated texture. +Hardware Atomic buffers +^^^^^^^^^^^^^^^^^^^^^^^ + +Buffers containing hw atomics are required to support the feature +on some drivers. + +Drivers that require this need to fill the ``set_hw_atomic_buffers`` method. + Shader Resources ^^^^^^^^^^^^^^^^ diff --git a/src/gallium/include/pipe/p_context.h b/src/gallium/include/pipe/p_context.h index 0dd4ad1242..b74e649219 100644 --- a/src/gallium/include/pipe/p_context.h +++ b/src/gallium/include/pipe/p_context.h @@ -332,6 +332,22 @@ struct pipe_context { const struct pipe_shader_buffer *buffers); /** + * Bind an array of hw atomic buffers for use by all shaders. + * And buffers that were previously bound to the specified range + * will be unbound. + * + * \param start_slot first buffer slot to bind. + * \param count number of consecutive buffers to bind. + * \param buffers array of pointers to the buffers to bind, it + * should contain at least \a count elements + * unless it's NULL, in which case no buffers will + * be bound. + */ + void (*set_hw_atomic_buffers)(struct pipe_context *, + unsigned start_slot, unsigned count, + const struct pipe_shader_buffer *buffers); + + /** * Bind an array of images that will be used by a shader. * Any images that were previously bound to the specified range * will be unbound. _______________________________________________ mesa-commit mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/mesa-commit
