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34b3b92bbe
When varyings was added we moved to use to dynamycally allocated
pointers, instead of allocating just one block for everything. That
breaks some assumptions of some vulkan drivers (like anv), that make
serialization and copying easier. And at the same time, varyings are
not needed for vulkan.
So this commit moves them out. Although it seems a little an overkill,
fixing the anv side would require a similar, or more, changes, so in
the end it is about to decide where do we want to put our effort.
v2: (from Jason review)
* Don't use a temp variable on the _create methods, just return
result of rzalloc_size
* Wrap some lines too long.
Fixes: cf0b2ad486 ("nir/xfb: adding varyings on nir_xfb_info and gather_info")
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
/*
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* Copyright © 2018 Intel Corporation
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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 (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* 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
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#ifndef NIR_XFB_INFO_H
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#define NIR_XFB_INFO_H
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#include "nir.h"
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#define NIR_MAX_XFB_BUFFERS 4
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#define NIR_MAX_XFB_STREAMS 4
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typedef struct {
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uint16_t stride;
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uint16_t varying_count;
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} nir_xfb_buffer_info;
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typedef struct {
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uint8_t buffer;
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uint16_t offset;
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uint8_t location;
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uint8_t component_mask;
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uint8_t component_offset;
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} nir_xfb_output_info;
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typedef struct {
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const struct glsl_type *type;
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uint8_t buffer;
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uint16_t offset;
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} nir_xfb_varying_info;
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typedef struct nir_xfb_info {
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uint8_t buffers_written;
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uint8_t streams_written;
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nir_xfb_buffer_info buffers[NIR_MAX_XFB_BUFFERS];
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uint8_t buffer_to_stream[NIR_MAX_XFB_STREAMS];
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uint16_t output_count;
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nir_xfb_output_info outputs[0];
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} nir_xfb_info;
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typedef struct nir_xfb_varyings_info {
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uint16_t varying_count;
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nir_xfb_varying_info varyings[0];
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} nir_xfb_varyings_info;
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static inline size_t
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nir_xfb_info_size(uint16_t output_count)
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{
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return sizeof(nir_xfb_info) + sizeof(nir_xfb_output_info) * output_count;
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}
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nir_xfb_info *
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nir_gather_xfb_info(const nir_shader *shader, void *mem_ctx);
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nir_xfb_info *
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nir_gather_xfb_info_with_varyings(const nir_shader *shader,
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void *mem_ctx,
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nir_xfb_varyings_info **varyings_info);
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#endif /* NIR_XFB_INFO_H */
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