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/util/vk_object.h"
30
31#include <vulkan/vulkan.h>
32
33struct radv_descriptor_set_binding_layout {
34   VkDescriptorType type;
35
36   /* Number of array elements in this binding */
37   uint32_t array_size;
38
39   uint32_t offset;
40   uint32_t buffer_offset;
41   uint16_t dynamic_offset_offset;
42
43   uint16_t dynamic_offset_count;
44   /* redundant with the type, each for a single array element */
45   uint32_t size;
46
47   /* Offset in the radv_descriptor_set_layout of the immutable samplers, or 0
48    * if there are no immutable samplers. */
49   uint32_t immutable_samplers_offset;
50   bool immutable_samplers_equal;
51};
52
53struct radv_descriptor_set_layout {
54   struct vk_object_base base;
55
56   /* The create flags for this descriptor set layout */
57   VkDescriptorSetLayoutCreateFlags flags;
58
59   /* Number of bindings in this descriptor set */
60   uint32_t binding_count;
61
62   /* Total size of the descriptor set with room for all array entries */
63   uint32_t size;
64
65   /* CPU size of this struct + all associated data, for hashing. */
66   uint32_t layout_size;
67
68   /* Shader stages affected by this descriptor set */
69   uint16_t shader_stages;
70   uint16_t dynamic_shader_stages;
71
72   /* Number of buffers in this descriptor set */
73   uint32_t buffer_count;
74
75   /* Number of dynamic offsets used by this descriptor set */
76   uint16_t dynamic_offset_count;
77
78   bool has_immutable_samplers;
79   bool has_variable_descriptors;
80
81   uint32_t ycbcr_sampler_offsets_offset;
82
83   /* Bindings in this descriptor set */
84   struct radv_descriptor_set_binding_layout binding[0];
85};
86
87struct radv_pipeline_layout {
88   struct vk_object_base base;
89   struct {
90      struct radv_descriptor_set_layout *layout;
91      uint32_t size;
92      uint16_t dynamic_offset_start;
93      uint16_t dynamic_offset_count;
94      VkShaderStageFlags dynamic_offset_stages;
95   } set[MAX_SETS];
96
97   uint32_t num_sets;
98   uint32_t push_constant_size;
99   uint32_t dynamic_offset_count;
100   uint16_t dynamic_shader_stages;
101
102   unsigned char sha1[20];
103};
104
105static inline const uint32_t *
106radv_immutable_samplers(const struct radv_descriptor_set_layout *set,
107                        const struct radv_descriptor_set_binding_layout *binding)
108{
109   return (const uint32_t *)((const char *)set + binding->immutable_samplers_offset);
110}
111
112static inline unsigned
113radv_combined_image_descriptor_sampler_offset(
114   const struct radv_descriptor_set_binding_layout *binding)
115{
116   return binding->size - ((!binding->immutable_samplers_equal) ? 16 : 0);
117}
118
119static inline const struct radv_sampler_ycbcr_conversion *
120radv_immutable_ycbcr_samplers(const struct radv_descriptor_set_layout *set, unsigned binding_index)
121{
122   if (!set->ycbcr_sampler_offsets_offset)
123      return NULL;
124
125   const uint32_t *offsets =
126      (const uint32_t *)((const char *)set + set->ycbcr_sampler_offsets_offset);
127
128   if (offsets[binding_index] == 0)
129      return NULL;
130   return (const struct radv_sampler_ycbcr_conversion *)((const char *)set +
131                                                         offsets[binding_index]);
132}
133#endif /* RADV_DESCRIPTOR_SET_H */
134