[Mesa-dev] [PATCH v2 4/9] gallium: add a cap for max vertex streams
Ilia Mirkin
imirkin at alum.mit.edu
Tue Jul 1 07:25:33 PDT 2014
On Tue, Jul 1, 2014 at 8:39 AM, Roland Scheidegger <sroland at vmware.com> wrote:
> Am 30.06.2014 19:43, schrieb Ilia Mirkin:
>> On Sat, Jun 28, 2014 at 8:44 AM, Roland Scheidegger <sroland at vmware.com> wrote:
>>> 3-4 look alright to me.
>>
>> Does this count as a R-b? Looks like the core changes have landed, so
>> I'm going to be looking to push all this out ~tomorrow.
>>
>>> I wonder if the cap name is actually "correct"
>>> or if it should have some STREAM_OUT in it. But doesn't really matter I
>>> guess.
>>
>> It doesn't really matter to me... same as with the index thing, as
>> long as everyone agrees, I'm happy with whatever.
>>
>> It does seem like it's specific to vertex stream quantities, not
>> stream-out though. With AMD_tf4, you can also rasterize multpile
>> vertex streams, which would also be subject to the same limit. But
>> it's all tied pretty closely together -- e.g. the extension is
>> AMD_transform_feedback4, not AMD_fragment_vertex_streams or something.
>>
>>> Longer term I think we might want to merge some caps. Everybody
>>> (supporting stream out) will either support 1 or 4 streams along with
>>> other functionality anyway.
>>
>> Agreed. And I like Marek's suggestion of using the GLSL level. Until
>> then, this is OK though?
>
> Yes,
> Reviewed-by: Roland Scheidegger <sroland at vmware.com>
Great. Is that for the non-nvc0 bits of the series, or just this
patch? (or some other subset...) Just want to get all the annotations
right before pushing :)
-ilia
>
>>
>>>
>>> Roland
>>>
>>>
>>> Am 28.06.2014 05:50, schrieb Ilia Mirkin:
>>>> Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
>>>> Reviewed-by: Marek Olšák <marek.olsak at amd.com>
>>>> Reviewed-by: Brian Paul <brianp at vmware.com>
>>>> ---
>>>>
>>>> v1 -> v2:
>>>> - add an assert to make sure it's <= 4
>>>> - add a note in docs about expected values
>>>>
>>>> src/gallium/docs/source/screen.rst | 3 +++
>>>> src/gallium/drivers/freedreno/freedreno_screen.c | 1 +
>>>> src/gallium/drivers/i915/i915_screen.c | 1 +
>>>> src/gallium/drivers/ilo/ilo_screen.c | 1 +
>>>> src/gallium/drivers/llvmpipe/lp_screen.c | 2 ++
>>>> src/gallium/drivers/nouveau/nv30/nv30_screen.c | 1 +
>>>> src/gallium/drivers/nouveau/nv50/nv50_screen.c | 2 ++
>>>> src/gallium/drivers/nouveau/nvc0/nvc0_screen.c | 2 ++
>>>> src/gallium/drivers/r300/r300_screen.c | 1 +
>>>> src/gallium/drivers/r600/r600_pipe.c | 2 ++
>>>> src/gallium/drivers/radeonsi/si_pipe.c | 2 ++
>>>> src/gallium/drivers/softpipe/sp_screen.c | 2 ++
>>>> src/gallium/drivers/svga/svga_screen.c | 1 +
>>>> src/gallium/include/pipe/p_defines.h | 3 ++-
>>>> src/mesa/state_tracker/st_extensions.c | 5 +++++
>>>> 15 files changed, 28 insertions(+), 1 deletion(-)
>>>>
>>>> diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst
>>>> index 1a80b04..5e01df5 100644
>>>> --- a/src/gallium/docs/source/screen.rst
>>>> +++ b/src/gallium/docs/source/screen.rst
>>>> @@ -205,6 +205,9 @@ The integer capabilities:
>>>> * ``PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION``: Whether
>>>> TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION is supported, which disables clipping
>>>> and viewport transformation.
>>>> +* ``PIPE_CAP_MAX_VERTEX_STREAMS``: The maximum number of vertex streams
>>>> + supported by the geometry shader. If stream-out is supported, this should be
>>>> + at least 1. If stream-out is not supported, this should be 0.
>>>>
>>>>
>>>> .. _pipe_capf:
>>>> diff --git a/src/gallium/drivers/freedreno/freedreno_screen.c b/src/gallium/drivers/freedreno/freedreno_screen.c
>>>> index e7a185d..9200962 100644
>>>> --- a/src/gallium/drivers/freedreno/freedreno_screen.c
>>>> +++ b/src/gallium/drivers/freedreno/freedreno_screen.c
>>>> @@ -227,6 +227,7 @@ fd_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
>>>> /* Geometry shader output, unsupported. */
>>>> case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
>>>> case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
>>>> + case PIPE_CAP_MAX_VERTEX_STREAMS:
>>>> return 0;
>>>>
>>>> /* Texturing. */
>>>> diff --git a/src/gallium/drivers/i915/i915_screen.c b/src/gallium/drivers/i915/i915_screen.c
>>>> index 79d8659..036f706 100644
>>>> --- a/src/gallium/drivers/i915/i915_screen.c
>>>> +++ b/src/gallium/drivers/i915/i915_screen.c
>>>> @@ -270,6 +270,7 @@ i915_get_param(struct pipe_screen *screen, enum pipe_cap cap)
>>>> /* Geometry shader output, unsupported. */
>>>> case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
>>>> case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
>>>> + case PIPE_CAP_MAX_VERTEX_STREAMS:
>>>> return 0;
>>>>
>>>> /* Fragment coordinate conventions. */
>>>> diff --git a/src/gallium/drivers/ilo/ilo_screen.c b/src/gallium/drivers/ilo/ilo_screen.c
>>>> index b08ae20..8f8e152 100644
>>>> --- a/src/gallium/drivers/ilo/ilo_screen.c
>>>> +++ b/src/gallium/drivers/ilo/ilo_screen.c
>>>> @@ -375,6 +375,7 @@ ilo_get_param(struct pipe_screen *screen, enum pipe_cap param)
>>>> return ILO_MAX_SO_BINDINGS;
>>>> case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
>>>> case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
>>>> + case PIPE_CAP_MAX_VERTEX_STREAMS:
>>>> return 0;
>>>> case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
>>>> if (is->dev.gen >= ILO_GEN(7))
>>>> diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c
>>>> index a6b712a..26ab294 100644
>>>> --- a/src/gallium/drivers/llvmpipe/lp_screen.c
>>>> +++ b/src/gallium/drivers/llvmpipe/lp_screen.c
>>>> @@ -192,6 +192,8 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
>>>> case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
>>>> case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
>>>> return 1024;
>>>> + case PIPE_CAP_MAX_VERTEX_STREAMS:
>>>> + return 1;
>>>> case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
>>>> return 1;
>>>> case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
>>>> diff --git a/src/gallium/drivers/nouveau/nv30/nv30_screen.c b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
>>>> index 5c3d783..c79626b 100644
>>>> --- a/src/gallium/drivers/nouveau/nv30/nv30_screen.c
>>>> +++ b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
>>>> @@ -117,6 +117,7 @@ nv30_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
>>>> case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
>>>> case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
>>>> case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
>>>> + case PIPE_CAP_MAX_VERTEX_STREAMS:
>>>> case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
>>>> case PIPE_CAP_TEXTURE_BARRIER:
>>>> case PIPE_CAP_SEAMLESS_CUBE_MAP:
>>>> diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.c b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
>>>> index c09a8c6..40ad4a4 100644
>>>> --- a/src/gallium/drivers/nouveau/nv50/nv50_screen.c
>>>> +++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
>>>> @@ -116,6 +116,8 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
>>>> case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
>>>> case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
>>>> return 1024;
>>>> + case PIPE_CAP_MAX_VERTEX_STREAMS:
>>>> + return 1;
>>>> case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
>>>> return 256;
>>>> case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
>>>> diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
>>>> index 52a067e..510368b 100644
>>>> --- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
>>>> +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
>>>> @@ -103,6 +103,8 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
>>>> case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
>>>> case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
>>>> return 1024;
>>>> + case PIPE_CAP_MAX_VERTEX_STREAMS:
>>>> + return 1;
>>>> case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
>>>> return 256;
>>>> case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
>>>> diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c
>>>> index d4bb6ab..bcd0e8e 100644
>>>> --- a/src/gallium/drivers/r300/r300_screen.c
>>>> +++ b/src/gallium/drivers/r300/r300_screen.c
>>>> @@ -156,6 +156,7 @@ static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
>>>> case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
>>>> case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
>>>> case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
>>>> + case PIPE_CAP_MAX_VERTEX_STREAMS:
>>>> case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
>>>> case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
>>>> case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
>>>> diff --git a/src/gallium/drivers/r600/r600_pipe.c b/src/gallium/drivers/r600/r600_pipe.c
>>>> index 6f87c78..78a85ab 100644
>>>> --- a/src/gallium/drivers/r600/r600_pipe.c
>>>> +++ b/src/gallium/drivers/r600/r600_pipe.c
>>>> @@ -333,6 +333,8 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
>>>> return 1024;
>>>> case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
>>>> return 16384;
>>>> + case PIPE_CAP_MAX_VERTEX_STREAMS:
>>>> + return 1;
>>>>
>>>> /* Texturing. */
>>>> case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
>>>> diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c
>>>> index 07f4291..d4dfdd6 100644
>>>> --- a/src/gallium/drivers/radeonsi/si_pipe.c
>>>> +++ b/src/gallium/drivers/radeonsi/si_pipe.c
>>>> @@ -271,6 +271,8 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
>>>> return 1024;
>>>> case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
>>>> return 4095;
>>>> + case PIPE_CAP_MAX_VERTEX_STREAMS:
>>>> + return 1;
>>>>
>>>> /* Texturing. */
>>>> case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
>>>> diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c
>>>> index d82fed9..ee3e0f2 100644
>>>> --- a/src/gallium/drivers/softpipe/sp_screen.c
>>>> +++ b/src/gallium/drivers/softpipe/sp_screen.c
>>>> @@ -120,6 +120,8 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
>>>> case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
>>>> case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
>>>> return 1024;
>>>> + case PIPE_CAP_MAX_VERTEX_STREAMS:
>>>> + return 1;
>>>> case PIPE_CAP_PRIMITIVE_RESTART:
>>>> return 1;
>>>> case PIPE_CAP_SHADER_STENCIL_EXPORT:
>>>> diff --git a/src/gallium/drivers/svga/svga_screen.c b/src/gallium/drivers/svga/svga_screen.c
>>>> index 4e1e331..0e88132 100644
>>>> --- a/src/gallium/drivers/svga/svga_screen.c
>>>> +++ b/src/gallium/drivers/svga/svga_screen.c
>>>> @@ -255,6 +255,7 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
>>>> case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
>>>> case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
>>>> case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
>>>> + case PIPE_CAP_MAX_VERTEX_STREAMS:
>>>> case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
>>>> case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
>>>> case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
>>>> diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
>>>> index 90f6493..702bb0b 100644
>>>> --- a/src/gallium/include/pipe/p_defines.h
>>>> +++ b/src/gallium/include/pipe/p_defines.h
>>>> @@ -558,7 +558,8 @@ enum pipe_cap {
>>>> PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET = 96,
>>>> PIPE_CAP_SAMPLE_SHADING = 97,
>>>> PIPE_CAP_TEXTURE_GATHER_OFFSETS = 98,
>>>> - PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION = 99
>>>> + PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION = 99,
>>>> + PIPE_CAP_MAX_VERTEX_STREAMS = 100,
>>>> };
>>>>
>>>> #define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 (1 << 0)
>>>> diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
>>>> index e938046..3b6681e 100644
>>>> --- a/src/mesa/state_tracker/st_extensions.c
>>>> +++ b/src/mesa/state_tracker/st_extensions.c
>>>> @@ -287,6 +287,11 @@ void st_init_limits(struct st_context *st)
>>>> screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS);
>>>> c->MaxTransformFeedbackInterleavedComponents =
>>>> screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS);
>>>> + c->MaxVertexStreams =
>>>> + MAX2(1, screen->get_param(screen, PIPE_CAP_MAX_VERTEX_STREAMS));
>>>> +
>>>> + /* The vertex stream must fit into pipe_stream_output_info::stream */
>>>> + assert(c->MaxVertexStreams <= 4);
>>>>
>>>> c->StripTextureBorder = GL_TRUE;
>>>>
>>>>
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