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gallium/aux: add helper nir_gather_stream_output_info 

Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14388>
This commit is contained in:
Marek Olšák 2022-01-02 23:37:15 -05:00 committed by Marge Bot
parent 2a708efec3
commit ee4c5b1699
3 changed files with 94 additions and 0 deletions
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2
src/gallium/auxiliary/meson.build
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@ -327,6 +327,8 @@ files_libgallium = files(
'nir/nir_to_tgsi.h',
'nir/nir_draw_helpers.c',
'nir/nir_draw_helpers.h',
'nir/nir_helpers.c',
'nir/nir_helpers.h',
)
if dep_libdrm.found()

56
src/gallium/auxiliary/nir/nir_helpers.c Normal file
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@ -0,0 +1,56 @@
/**************************************************************************
*
* Copyright 2021 Advanced Micro Devices, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
**************************************************************************/
#include "nir_helpers.h"
#include "nir_xfb_info.h"
void
nir_gather_stream_output_info(nir_shader *nir,
struct pipe_stream_output_info *so)
{
int slot_to_register[NUM_TOTAL_VARYING_SLOTS];
nir_xfb_info *info = nir_gather_xfb_info_from_intrinsics(nir, slot_to_register);
memset(so, 0, sizeof(*so));
if (!info)
return;
so->num_outputs = info->output_count;
for (unsigned i = 0; i < info->output_count; i++) {
so->output[i].start_component = info->outputs[i].component_offset;
so->output[i].num_components = util_bitcount(info->outputs[i].component_mask);
so->output[i].output_buffer = info->outputs[i].buffer;
so->output[i].dst_offset = info->outputs[i].offset / 4;
so->output[i].stream = info->buffer_to_stream[info->outputs[i].buffer];
so->output[i].register_index = slot_to_register[info->outputs[i].location];
}
for (unsigned i = 0; i < MAX_XFB_BUFFERS; i++)
so->stride[i] = info->buffers[i].stride;
free(info);
}

36
src/gallium/auxiliary/nir/nir_helpers.h Normal file
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@ -0,0 +1,36 @@
/**************************************************************************
*
* Copyright 2021 Advanced Micro Devices, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
**************************************************************************/
#ifndef GALLIUM_NIR_HELPERS
#define GALLIUM_NIR_HELPERS
#include "nir.h"
#include "pipe/p_state.h"
void
nir_gather_stream_output_info(nir_shader *nir,
struct pipe_stream_output_info *so);
#endif