VkDeviceGroupPresentCapabilitiesKHR

The VkDeviceGroupPresentCapabilitiesKHR structure is defined as:

typedef struct VkDeviceGroupPresentCapabilitiesKHR {
    VkStructureType sType;
    void* pNext;
    uint32_t presentMask[VK_MAX_DEVICE_GROUP_SIZE];
    VkDeviceGroupPresentModeFlagsKHR modes;
} VkDeviceGroupPresentCapabilitiesKHR;

• sType is a VkStructureType value identifying this structure.
• pNext is NULL or a pointer to a structure extending this structure.
• presentMask is an array of VK_MAX_DEVICE_GROUP_SIZE
uint32_t masks, where the mask at element i is non-zero if physical device i has a presentation engine, and where bit j is set in element i if physical device i can present swapchain images from physical device j. If element i is non-zero, then bit i must be set.
• modes is a bitmask of VkDeviceGroupPresentModeFlagBitsKHR indicating which device group presentation modes are supported.

modes always has VK_DEVICE_GROUP_PRESENT_MODE_LOCAL_BIT_KHR set.

The present mode flags are also used when presenting an image, in VkDeviceGroupPresentInfoKHR::mode.

If a device group only includes a single physical device, then modesmust equal VK_DEVICE_GROUP_PRESENT_MODE_LOCAL_BIT_KHR.