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