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 <vulkan/vulkan.h>
  28
  29 #define MAX_SETS         32
  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    /* Shader stages affected by this descriptor set */
  62    uint16_t shader_stages;
  63    uint16_t dynamic_shader_stages;
  64
  65    /* Number of buffers in this descriptor set */
  66    uint32_t buffer_count;
  67
  68    /* Number of dynamic offsets used by this descriptor set */
  69    uint16_t dynamic_offset_count;
  70
  71    bool has_immutable_samplers;
  72    bool has_variable_descriptors;
  73
  74    /* Bindings in this descriptor set */
  75    struct radv_descriptor_set_binding_layout binding[0];
  76 };
  77
  78 struct radv_pipeline_layout {
  79    struct {
  80       struct radv_descriptor_set_layout *layout;
  81       uint32_t size;
  82       uint32_t dynamic_offset_start;
  83    } set[MAX_SETS];
  84
  85    uint32_t num_sets;
  86    uint32_t push_constant_size;
  87    uint32_t dynamic_offset_count;
  88    uint16_t dynamic_shader_stages;
  89
  90    unsigned char sha1[20];
  91 };
  92
  93 static inline const uint32_t *
  94 radv_immutable_samplers(const struct radv_descriptor_set_layout *set,
  95                         const struct radv_descriptor_set_binding_layout *binding) {
  96         return (const uint32_t*)((const char*)set + binding->immutable_samplers_offset);
  97 }
  98 #endif /* RADV_DESCRIPTOR_SET_H */