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      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 
     73    /* Bindings in this descriptor set */
     74    struct radv_descriptor_set_binding_layout binding[0];
     75 };
     76 
     77 struct radv_pipeline_layout {
     78    struct {
     79       struct radv_descriptor_set_layout *layout;
     80       uint32_t size;
     81       uint32_t dynamic_offset_start;
     82    } set[MAX_SETS];
     83 
     84    uint32_t num_sets;
     85    uint32_t push_constant_size;
     86    uint32_t dynamic_offset_count;
     87 
     88    unsigned char sha1[20];
     89 };
     90 
     91 static inline const uint32_t *
     92 radv_immutable_samplers(const struct radv_descriptor_set_layout *set,
     93                         const struct radv_descriptor_set_binding_layout *binding) {
     94 	return (const uint32_t*)((const char*)set + binding->immutable_samplers_offset);
     95 }
     96 #endif /* RADV_DESCRIPTOR_SET_H */
     97