Am 08.02.2017 um 13:42 schrieb Nicolai Hähnle:
> From: Nicolai Hähnle <nicolai.haeh...@amd.com>
>
> TODO fill out caps in all drivers
> ---
> src/gallium/docs/source/context.rst | 9 +++++++++
> src/gallium/docs/source/screen.rst | 3 +++
> src/gallium/include/pipe/p_context.h | 13 +++++++++++++
> src/gallium/include/pipe/p_defines.h | 2 ++
> src/gallium/include/pipe/p_screen.h | 1 -
> 5 files changed, 27 insertions(+), 1 deletion(-)
>
> diff --git a/src/gallium/docs/source/context.rst
> b/src/gallium/docs/source/context.rst
> index d8b2560..b47b75b 100644
> --- a/src/gallium/docs/source/context.rst
> +++ b/src/gallium/docs/source/context.rst
> @@ -593,6 +593,15 @@ are set.
>
>
>
> +.. _resource_commit:
> +
> +resource_commit
> +%%%%%%%%%%%%%%%
> +
> +This function changes the commitment of a part of a sparse resource.
This is quite brief...
> +
> +
> +
> .. _pipe_transfer:
>
> PIPE_TRANSFER
> diff --git a/src/gallium/docs/source/screen.rst
> b/src/gallium/docs/source/screen.rst
> index 4f5b4bb..e8aeb2e 100644
> --- a/src/gallium/docs/source/screen.rst
> +++ b/src/gallium/docs/source/screen.rst
> @@ -376,6 +376,9 @@ The integer capabilities:
> * ``PIPE_CAP_DOUBLES``: Whether double precision floating-point operations
> are supported.
> * ``PIPE_CAP_INT64``: Whether 64-bit integer operations are supported.
> +* ``PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE``: The page size of sparse buffers in
> + bytes, or 0 if sparse buffers are not supported. The page size must be at
> + most 64KB.
>
>
> .. _pipe_capf:
> diff --git a/src/gallium/include/pipe/p_context.h
> b/src/gallium/include/pipe/p_context.h
> index 45098c9..85a80d7 100644
> --- a/src/gallium/include/pipe/p_context.h
> +++ b/src/gallium/include/pipe/p_context.h
> @@ -574,6 +574,19 @@ struct pipe_context {
> void (*memory_barrier)(struct pipe_context *, unsigned flags);
>
> /**
> + * Change the commitment status of a part of the given resource, which
> must
> + * have been created with the PIPE_RESOURCE_FLAG_SPARSE bit.
> + *
> + * \param level The texture level whose commitment should be changed.
> + * \param box The region of the resource whose commitment should be
> changed.
> + * \param commit Whether memory should be committed or un-committed.
> + *
> + * \return false if out of memory, true on success.
> + */
> + bool (*resource_commit)(struct pipe_context *, struct pipe_resource *,
> + unsigned level, struct pipe_box *box, bool
> commit);
I suppose it makes sense that this operates on the context level?
Should something be said about alignment of the box? I'd guess as long
as this is only for buffers, x/width need to be aligned to page
boundaries (taking the format into consideration, but I suppose not a
problem for buffers), but I don't really see how that would work with
textures (small mips etc.).
Roland
> +
> + /**
> * Creates a video codec for a specific video format/profile
> */
> struct pipe_video_codec *(*create_video_codec)( struct pipe_context
> *context,
> diff --git a/src/gallium/include/pipe/p_defines.h
> b/src/gallium/include/pipe/p_defines.h
> index 9915957..d01deea 100644
> --- a/src/gallium/include/pipe/p_defines.h
> +++ b/src/gallium/include/pipe/p_defines.h
> @@ -458,6 +458,7 @@ enum pipe_flush_flags
> #define PIPE_RESOURCE_FLAG_MAP_PERSISTENT (1 << 0)
> #define PIPE_RESOURCE_FLAG_MAP_COHERENT (1 << 1)
> #define PIPE_RESOURCE_FLAG_TEXTURING_MORE_LIKELY (1 << 2)
> +#define PIPE_RESOURCE_FLAG_SPARSE (1 << 3)
> #define PIPE_RESOURCE_FLAG_DRV_PRIV (1 << 16) /* driver/winsys private */
> #define PIPE_RESOURCE_FLAG_ST_PRIV (1 << 24) /* state-tracker/winsys
> private */
>
> @@ -754,6 +755,7 @@ enum pipe_cap
> PIPE_CAP_TGSI_MUL_ZERO_WINS,
> PIPE_CAP_DOUBLES,
> PIPE_CAP_INT64,
> + PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE,
> };
>
> #define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 (1 << 0)
> diff --git a/src/gallium/include/pipe/p_screen.h
> b/src/gallium/include/pipe/p_screen.h
> index b6203f1..ee0b041 100644
> --- a/src/gallium/include/pipe/p_screen.h
> +++ b/src/gallium/include/pipe/p_screen.h
> @@ -236,7 +236,6 @@ struct pipe_screen {
> void (*resource_destroy)(struct pipe_screen *,
> struct pipe_resource *pt);
>
> -
> /**
> * Do any special operations to ensure frontbuffer contents are
> * displayed, eg copy fake frontbuffer.
>
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