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softpipe: Advertise PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT

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It's a software rasterizer, all buffers are necessarily persistent and
coherent. There are no staging buffers in transfer_map and no sync/flush
operations, so this is trivial.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19392>
This commit is contained in:
Alyssa Rosenzweig
2022-10-28 22:36:52 -04:00
parent d3d68394ce
commit 1ad51f05c2
2 changed files with 2 additions and 1 deletions
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2
docs/features.txt
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@@ -195,7 +195,7 @@ GL 4.3, GLSL 4.30 -- all DONE: freedreno/a6xx, i965/gen8+, nvc0, r600, radeonsi,
GL 4.4, GLSL 4.40 -- all DONE: i965/gen8+, nvc0, r600, radeonsi, llvmpipe, zink
GL_MAX_VERTEX_ATTRIB_STRIDE DONE (all drivers)
GL_ARB_buffer_storage DONE (freedreno, i965, nv50, v3d, vc4, lima, panfrost, asahi, d3d12)
GL_ARB_buffer_storage DONE (freedreno, i965, nv50, v3d, vc4, lima, panfrost, asahi, d3d12, softpipe)
GL_ARB_clear_texture DONE (i965, nv50, softpipe, virgl)
GL_ARB_enhanced_layouts DONE (freedreno/a3xx+, i965, nv50, softpipe, virgl)
- compile-time constant expressions DONE

1
src/gallium/drivers/softpipe/sp_screen.c
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@@ -232,6 +232,7 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
return 4;
case PIPE_CAP_TEXTURE_GATHER_SM5:
case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
case PIPE_CAP_TEXTURE_QUERY_LOD:
return 1;
case PIPE_CAP_VS_WINDOW_SPACE_POSITION: