"Kristian H. Kristensen" <hoegsb...@gmail.com> writes: > This new pipe cap and the new nr_samples field in pipe_surface lets a > state tracker bind a render target with a different sample count than > the resource. This allows for implementing > EXT_multisampled_render_to_texture and > EXT_multisampled_render_to_texture2. > > Signed-off-by: Kristian H. Kristensen <hoegsb...@chromium.org>
> diff --git a/src/gallium/docs/source/screen.rst > b/src/gallium/docs/source/screen.rst > index 0abd164494c..cf2ce33b87f 100644 > --- a/src/gallium/docs/source/screen.rst > +++ b/src/gallium/docs/source/screen.rst > @@ -477,6 +477,9 @@ subpixel precision bias in bits during conservative > rasterization. > 0 means no limit. > * ``PIPE_CAP_MAX_VERTEX_ELEMENT_SRC_OFFSET``: The maximum supported value for > of pipe_vertex_element::src_offset. > +* ``PIPE_CAP_SURFACEA_SAMPLE_COUNT_TEXTURE``: Whether the driver > + supports pipe_surface overrides of resource nr_samples. If set, will > + enable EXT_multisampled_render_to_texture. s/SURFACEA/SURFACE/ > > .. _pipe_capf: > > diff --git a/src/gallium/include/pipe/p_defines.h > b/src/gallium/include/pipe/p_defines.h > index e99895d30d8..6d96f1ccb5b 100644 > --- a/src/gallium/include/pipe/p_defines.h > +++ b/src/gallium/include/pipe/p_defines.h > @@ -832,6 +832,7 @@ enum pipe_cap > PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTER_BUFFERS, > PIPE_CAP_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET, > PIPE_CAP_MAX_VERTEX_ELEMENT_SRC_OFFSET, > + PIPE_CAP_SURFACE_SAMPLE_COUNT, > }; > > /** > diff --git a/src/gallium/include/pipe/p_state.h > b/src/gallium/include/pipe/p_state.h > index fd670345aad..89cffb15bd8 100644 > --- a/src/gallium/include/pipe/p_state.h > +++ b/src/gallium/include/pipe/p_state.h > @@ -443,6 +443,12 @@ struct pipe_surface > uint16_t width; /**< logical width in pixels */ > uint16_t height; /**< logical height in pixels */ > > + /** Number of samples for the surface. This can be different from the > + * resource nr_samples when the resource is bound using > + * FramebufferTexture2DMultisampleEXT. > + */ > + unsigned nr_samples:8; Don't you mean: /** * Number of samples for the surface. This will be 0 if rendering * should use the resource's nr_samples, or another value if the resource * is bound using FramebufferTexture2DMultisampleEXT */ Other than that, 1-3 are: Reviewed-by: Eric Anholt <e...@anholt.net>
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