| /* |
| * Copyright © 2016 Bas Nieuwenhuizen |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| * DEALINGS IN THE SOFTWARE. |
| */ |
| |
| #ifndef TU_DESCRIPTOR_SET_H |
| #define TU_DESCRIPTOR_SET_H |
| |
| #include <vulkan/vulkan.h> |
| |
| /* The hardware supports 5 descriptor sets, but we reserve 1 for dynamic |
| * descriptors and input attachments. |
| */ |
| #define MAX_SETS 4 |
| |
| struct tu_descriptor_set_binding_layout |
| { |
| VkDescriptorType type; |
| |
| /* Number of array elements in this binding */ |
| uint32_t array_size; |
| |
| /* The size in bytes of each Vulkan descriptor. */ |
| uint32_t size; |
| |
| uint32_t offset; |
| |
| /* For descriptors that point to a buffer, index into the array of BO's to |
| * be added to the cmdbuffer's used BO list. |
| */ |
| uint32_t buffer_offset; |
| |
| /* Index into the pDynamicOffsets array for dynamic descriptors, as well as |
| * the array of dynamic descriptors (offsetted by |
| * tu_pipeline_layout::set::dynamic_offset_start). |
| */ |
| uint32_t dynamic_offset_offset; |
| |
| /* Offset in the tu_descriptor_set_layout of the immutable samplers, or 0 |
| * if there are no immutable samplers. */ |
| uint32_t immutable_samplers_offset; |
| |
| /* Offset in the tu_descriptor_set_layout of the ycbcr samplers, or 0 |
| * if there are no immutable samplers. */ |
| uint32_t ycbcr_samplers_offset; |
| |
| /* Shader stages that use this binding */ |
| uint32_t shader_stages; |
| }; |
| |
| struct tu_descriptor_set_layout |
| { |
| /* The create flags for this descriptor set layout */ |
| VkDescriptorSetLayoutCreateFlags flags; |
| |
| /* Number of bindings in this descriptor set */ |
| uint32_t binding_count; |
| |
| /* Total size of the descriptor set with room for all array entries */ |
| uint32_t size; |
| |
| /* Shader stages affected by this descriptor set */ |
| uint16_t shader_stages; |
| |
| /* Number of dynamic offsets used by this descriptor set */ |
| uint16_t dynamic_offset_count; |
| |
| /* A bitfield of which dynamic buffers are ubo's, to make the |
| * descriptor-binding-time patching easier. |
| */ |
| uint32_t dynamic_ubo; |
| |
| uint32_t buffer_count; |
| |
| bool has_immutable_samplers; |
| bool has_variable_descriptors; |
| |
| /* Bindings in this descriptor set */ |
| struct tu_descriptor_set_binding_layout binding[0]; |
| }; |
| |
| struct tu_pipeline_layout |
| { |
| struct |
| { |
| struct tu_descriptor_set_layout *layout; |
| uint32_t size; |
| uint32_t dynamic_offset_start; |
| } set[MAX_SETS]; |
| |
| uint32_t num_sets; |
| uint32_t push_constant_size; |
| uint32_t dynamic_offset_count; |
| |
| unsigned char sha1[20]; |
| }; |
| |
| static inline const uint32_t * |
| tu_immutable_samplers(const struct tu_descriptor_set_layout *set, |
| const struct tu_descriptor_set_binding_layout *binding) |
| { |
| return (void *) ((const char *) set + binding->immutable_samplers_offset); |
| } |
| |
| static inline const struct tu_sampler_ycbcr_conversion * |
| tu_immutable_ycbcr_samplers(const struct tu_descriptor_set_layout *set, |
| const struct tu_descriptor_set_binding_layout *binding) |
| { |
| if (!binding->ycbcr_samplers_offset) |
| return NULL; |
| |
| return (void *) ((const char *) set + binding->ycbcr_samplers_offset); |
| } |
| |
| #endif /* TU_DESCRIPTOR_SET_H */ |