src/amd/vulkan/radv_descriptor_set.h

   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
  33 struct 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
  53 struct 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
  87 struct radv_pipeline_layout {
  88    struct vk_object_base base;
  89    struct {
  90       struct radv_descriptor_set_layout *layout;
  91       uint32_t size;
  92       uint32_t dynamic_offset_start;
  93    } set[MAX_SETS];
  94
  95    uint32_t num_sets;
  96    uint32_t push_constant_size;
  97    uint32_t dynamic_offset_count;
  98    uint16_t dynamic_shader_stages;
  99
 100    unsigned char sha1[20];
 101 };
 102
 103 static inline const uint32_t *
 104 radv_immutable_samplers(const struct radv_descriptor_set_layout *set,
 105                         const struct radv_descriptor_set_binding_layout *binding) {
 106         return (const uint32_t*)((const char*)set + binding->immutable_samplers_offset);
 107 }
 108
 109 static inline unsigned
 110 radv_combined_image_descriptor_sampler_offset(const struct radv_descriptor_set_binding_layout *binding)
 111 {
 112         return binding->size - ((!binding->immutable_samplers_equal) ? 16 : 0);
 113 }
 114
 115 static inline const struct radv_sampler_ycbcr_conversion *
 116 radv_immutable_ycbcr_samplers(const struct radv_descriptor_set_layout *set,
 117                               unsigned binding_index)
 118 {
 119         if (!set->ycbcr_sampler_offsets_offset)
 120                 return NULL;
 121
 122         const uint32_t *offsets = (const uint32_t*)((const char*)set + set->ycbcr_sampler_offsets_offset);
 123
 124         if (offsets[binding_index] == 0)
 125                 return NULL;
 126         return (const struct radv_sampler_ycbcr_conversion *)((const char*)set + offsets[binding_index]);
 127 }
 128 #endif /* RADV_DESCRIPTOR_SET_H */