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aux/vk: Add buffer helper structs and functions.

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This commit is contained in:
Lubosz Sarnecki 2020-05-06 16:38:12 +02:00 committed by Jakob Bornecrantz
parent 905040319a
commit 589c7e4fef
2 changed files with 67 additions and 0 deletions
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50
src/xrt/auxiliary/vk/vk_helpers.c
View file

@ -1120,3 +1120,53 @@ vk_allocate_descriptor_sets(struct vk_bundle *vk,
return true;
}
bool
vk_buffer_init(struct vk_bundle *vk,
VkDeviceSize size,
VkBufferUsageFlags usage,
VkMemoryPropertyFlags properties,
VkBuffer *out_buffer,
VkDeviceMemory *out_mem)
{
VkBufferCreateInfo buffer_info = {
.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
.size = size,
.usage = usage,
};
VkResult res =
vk->vkCreateBuffer(vk->device, &buffer_info, NULL, out_buffer);
vk_check_error("vkCreateBuffer", res, false);
VkMemoryRequirements requirements;
vk->vkGetBufferMemoryRequirements(vk->device, *out_buffer,
&requirements);
VkMemoryAllocateInfo alloc_info = {
.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
.allocationSize = requirements.size};
if (!vk_get_memory_type(vk, requirements.memoryTypeBits, properties,
&alloc_info.memoryTypeIndex)) {
fprintf(stderr,
"Failed to find matching memoryTypeIndex for buffer\n");
return false;
}
res = vk->vkAllocateMemory(vk->device, &alloc_info, NULL, out_mem);
vk_check_error("vkAllocateMemory", res, false);
res = vk->vkBindBufferMemory(vk->device, *out_buffer, *out_mem, 0);
vk_check_error("vkBindBufferMemory", res, false);
return true;
}
void
vk_buffer_destroy(struct vk_buffer *self, struct vk_bundle *vk)
{
vk->vkDestroyBuffer(vk->device, self->handle, NULL);
vk->vkFreeMemory(vk->device, self->memory, NULL);
}

17
src/xrt/auxiliary/vk/vk_helpers.h
View file

@ -180,6 +180,13 @@ struct vk_bundle
// clang-format on
};
struct vk_buffer
{
VkBuffer handle;
VkDeviceMemory memory;
uint32_t size;
void *data;
};
/*
*
@ -417,6 +424,16 @@ vk_allocate_descriptor_sets(struct vk_bundle *vk,
const VkDescriptorSetLayout *set_layout,
VkDescriptorSet *sets);
bool
vk_buffer_init(struct vk_bundle *vk,
VkDeviceSize size,
VkBufferUsageFlags usage,
VkMemoryPropertyFlags properties,
VkBuffer *out_buffer,
VkDeviceMemory *out_mem);
void
vk_buffer_destroy(struct vk_buffer *self, struct vk_bundle *vk);
#ifdef __cplusplus
}