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render/vulkan: import semaphore to DMA-BUF instead of blocking

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Right now the Vulkan renderer blocks until the frame is complete
after rendering. This is necessary because Vulkan doesn't
interoperate well with implicit sync we use everywhere else.

Use the new kernel API to import a sync_file into a DMA-BUF to
avoid blocking.
This commit is contained in:
Simon Ser 2022-05-26 14:45:15 +02:00
parent aaf828d3d2
commit d2238bf722
3 changed files with 115 additions and 8 deletions
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6
include/render/vulkan.h
View file

@ -38,6 +38,8 @@ struct wlr_vk_device {
int drm_fd;
bool implicit_sync_interop;
// we only ever need one queue for rendering and transfer commands
uint32_t queue_family;
VkQueue queue;
@ -46,6 +48,7 @@ struct wlr_vk_device {
PFN_vkGetMemoryFdPropertiesKHR getMemoryFdPropertiesKHR;
PFN_vkWaitSemaphoresKHR waitSemaphoresKHR;
PFN_vkGetSemaphoreCounterValueKHR getSemaphoreCounterValueKHR;
PFN_vkGetSemaphoreFdKHR getSemaphoreFdKHR;
} api;
uint32_t format_prop_count;
@ -152,6 +155,9 @@ struct wlr_vk_command_buffer {
struct wl_list destroy_textures; // wlr_vk_texture.destroy_link
// Staging shared buffers to release after the command buffer completes
struct wl_list stage_buffers; // wlr_vk_shared_buffer.link
// For DMA-BUF implicit sync interop, may be NULL
VkSemaphore binary_semaphore;
};
#define VULKAN_COMMAND_BUFFERS_CAP 64