1/*
2 * Copyright © 2016 Bas Nieuwenhuizen
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24#ifndef RADV_DESCRIPTOR_SET_H
25#define RADV_DESCRIPTOR_SET_H
26
27#include "radv_constants.h"
28
29#include "vulkan/runtime/vk_descriptor_set_layout.h"
30#include "vulkan/runtime/vk_object.h"
31
32#include <vulkan/vulkan.h>
33
34struct radv_descriptor_set_binding_layout {
35   VkDescriptorType type;
36
37   /* Number of array elements in this binding */
38   uint32_t array_size;
39
40   uint32_t offset;
41   uint32_t buffer_offset;
42   uint16_t dynamic_offset_offset;
43
44   uint16_t dynamic_offset_count;
45   /* redundant with the type, each for a single array element */
46   uint32_t size;
47
48   /* Offset in the radv_descriptor_set_layout of the immutable samplers, or 0
49    * if there are no immutable samplers. */
50   uint32_t immutable_samplers_offset;
51   bool immutable_samplers_equal;
52};
53
54struct radv_descriptor_set_layout {
55   struct vk_descriptor_set_layout vk;
56
57   /* Everything below is hashed and shouldn't contain any pointers. Be careful when modifying this
58    * structure.
59    */
60
61   /* The create flags for this descriptor set layout */
62   VkDescriptorSetLayoutCreateFlags flags;
63
64   /* Number of bindings in this descriptor set */
65   uint32_t binding_count;
66
67   /* Total size of the descriptor set with room for all array entries */
68   uint32_t size;
69
70   /* CPU size of this struct + all associated data, for hashing. */
71   uint32_t layout_size;
72
73   /* Shader stages affected by this descriptor set */
74   uint16_t shader_stages;
75   uint16_t dynamic_shader_stages;
76
77   /* Number of buffers in this descriptor set */
78   uint32_t buffer_count;
79
80   /* Number of dynamic offsets used by this descriptor set */
81   uint16_t dynamic_offset_count;
82
83   bool has_immutable_samplers;
84   bool has_variable_descriptors;
85
86   uint32_t ycbcr_sampler_offsets_offset;
87
88   /* Bindings in this descriptor set */
89   struct radv_descriptor_set_binding_layout binding[0];
90};
91
92struct radv_pipeline_layout {
93   struct vk_object_base base;
94   struct {
95      struct radv_descriptor_set_layout *layout;
96      uint32_t dynamic_offset_start;
97   } set[MAX_SETS];
98
99   uint32_t num_sets;
100   uint32_t push_constant_size;
101   uint32_t dynamic_offset_count;
102   uint16_t dynamic_shader_stages;
103
104   bool independent_sets;
105
106   unsigned char sha1[20];
107};
108
109static inline const uint32_t *
110radv_immutable_samplers(const struct radv_descriptor_set_layout *set,
111                        const struct radv_descriptor_set_binding_layout *binding)
112{
113   return (const uint32_t *)((const char *)set + binding->immutable_samplers_offset);
114}
115
116static inline unsigned
117radv_combined_image_descriptor_sampler_offset(
118   const struct radv_descriptor_set_binding_layout *binding)
119{
120   return binding->size - ((!binding->immutable_samplers_equal) ? 16 : 0);
121}
122
123static inline const struct radv_sampler_ycbcr_conversion_state *
124radv_immutable_ycbcr_samplers(const struct radv_descriptor_set_layout *set, unsigned binding_index)
125{
126   if (!set->ycbcr_sampler_offsets_offset)
127      return NULL;
128
129   const uint32_t *offsets =
130      (const uint32_t *)((const char *)set + set->ycbcr_sampler_offsets_offset);
131
132   if (offsets[binding_index] == 0)
133      return NULL;
134   return (const struct radv_sampler_ycbcr_conversion_state *)((const char *)set +
135                                                         offsets[binding_index]);
136}
137
138struct radv_device;
139
140void radv_pipeline_layout_init(struct radv_device *device, struct radv_pipeline_layout *layout,
141                               bool independent_sets);
142void radv_pipeline_layout_add_set(struct radv_pipeline_layout *layout, uint32_t set_idx,
143                                  struct radv_descriptor_set_layout *set_layout);
144void radv_pipeline_layout_hash(struct radv_pipeline_layout *layout);
145void radv_pipeline_layout_finish(struct radv_device *device, struct radv_pipeline_layout *layout);
146
147#endif /* RADV_DESCRIPTOR_SET_H */
148