VkSubpassFragmentDensityMapOffsetEndInfoQCOM

If the VkSubpassEndInfo::pNext chain includes a VkSubpassFragmentDensityMapOffsetEndInfoQCOM structure, then that structure includes an array of fragment density map offsets per layer for the render pass.

The VkSubpassFragmentDensityMapOffsetEndInfoQCOM structure is defined as:

typedef struct VkSubpassFragmentDensityMapOffsetEndInfoQCOM {
    VkStructureType sType;
    const void* pNext;
    uint32_t fragmentDensityOffsetCount;
    const VkOffset2D* pFragmentDensityOffsets;
} VkSubpassFragmentDensityMapOffsetEndInfoQCOM;

• sType is a VkStructureType value identifying this structure.
• pNext is NULL or a pointer to a structure extending this structure.
• fragmentDensityOffsetCount is the number of offsets being specified.
• pFragmentDensityOffsets is a pointer to an array of VkOffset2D structs, each of which describes the offset per layer.

The array elements are given per layer as defined by Fetch Density Value, where index = layer. Each (x,y) offset is in framebuffer pixels and shifts the fetch of the fragment density map by that amount. Offsets can be positive or negative.

Offset values specified for any subpass that is not the last subpass in the render pass are ignored. If the VkSubpassEndInfo::pNext chain for the last subpass of a render pass does not include VkSubpassFragmentDensityMapOffsetEndInfoQCOM, or if fragmentDensityOffsetCount is zero, then the offset (0,0) is used for Fetch Density Value.