C Specification
To acquire permission to directly a display in Vulkan from the Direct Rendering Manager (DRM) interface, call:
// Provided by VK_EXT_acquire_drm_display
VkResult vkAcquireDrmDisplayEXT(
VkPhysicalDevice physicalDevice,
int32_t drmFd,
VkDisplayKHR display);
Parameters
-
physicalDevice
The physical device the display is on. -
drmFd
DRM primary file descriptor. -
display
The display the caller wishes Vulkan to control.
Description
All permissions necessary to control the display are granted to the Vulkan
instance associated with the provided physicalDevice
until the display
is either released or the connector is unplugged.
The provided drmFd
must correspond to the one owned by the
physicalDevice
.
If not, the error code VK_ERROR_UNKNOWN
must be returned.
The DRM FD must have DRM master permissions.
If any error is encountered during the acquisition of the display, the call
must return the error code VK_ERROR_INITIALIZATION_FAILED
.
The provided DRM fd should not be closed before the display is released, attempting to do it may result in undefined behaviour.
Document Notes
For more information, see the Vulkan Specification
This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.