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