Method CmdTransferStorageBuffRegsFromGPU

vgpu/memory.go:560–572

CmdTransferStorageBuffRegsFromGPU transfers memory from GPU to CPU for given regions by recording command to given storage buffer of given index.

(cmd vk.CommandBuffer, buff *MemBuff, buffIndex int, regs []MemReg)

// CmdTransferStorageBuffRegsFromGPU transfers memory from GPU to CPU for given regions
// by recording command to given storage buffer of given index.
func (mm *Memory) CmdTransferStorageBuffRegsFromGPU(cmd vk.CommandBuffer, buff *MemBuff, buffIndex int, regs []MemReg) {
	if buff.Size == 0 || buff.DevMem == vk.NullDeviceMemory || len(regs) == 0 {
		return
	}
	var rg []vk.BufferCopy
	for _, mr := range regs {
		if mr.BuffIndex != buffIndex {
			continue
		}
		rg = append(rg, vk.BufferCopy{SrcOffset: vk.DeviceSize(mr.Offset), DstOffset: vk.DeviceSize(mr.Offset), Size: vk.DeviceSize(mr.Size)})
	}
	vk.CmdCopyBuffer(cmd, buff.Dev, buff.Host, uint32(len(rg)), rg)
}

////////////////////////////////////////////////////////////////////////////
// Texture functions