vkGetFramebufferTilePropertiesQCOM

To query the tile properties from the attachments in framebuffer, call:

VkResult vkGetFramebufferTilePropertiesQCOM(
    VkDevice device,
    VkFramebuffer framebuffer,
    uint32_t* pPropertiesCount,
    VkTilePropertiesQCOM* pProperties);

• device is a logical device associated with the framebuffer.
• framebuffer is a handle of the framebuffer to query.
• pPropertiesCount is a pointer to an integer related to the number of tile properties available or queried, as described below.
• pProperties is either NULL or a pointer to an array of VkTilePropertiesQCOM structures.

If pProperties is NULL, then the number of tile properties available is returned in pPropertiesCount. Otherwise, pPropertiesCount must point to a variable set by the application to the number of elements in the pProperties array, and on return the variable is overwritten with the number of properties actually written to pProperties. If pPropertiesCount is less than the number of tile properties available, at most pPropertiesCount structures will be written, and VK_INCOMPLETE will be returned instead of VK_SUCCESS, to indicate that not all the available properties were returned.

The number of tile properties available is determined by the number of merged subpasses, and each tile property is associated with a merged subpass. There will be at most as many properties as there are subpasses within the render pass. To obtain the tile properties for a given merged subpass, the pProperties array can be indexed using the postMergeIndex value provided in VkRenderPassSubpassFeedbackInfoEXT.