internal void CopyBufferToImage(VkBuffer srcBuffer, VkImageLayout dstImageLayout, int regionCount, VkBufferImageCopy[] pRegions)
{
int dstPixelSize = 4;
SoftwareBuffer softwareBuffer = (SoftwareBuffer)srcBuffer;
SoftwareDeviceMemory sdm = softwareBuffer.m_deviceMemory;
int dstLineStride = m_imageExtent.width * dstPixelSize;
int dstDepthStride = m_imageExtent.width * m_imageExtent.height * dstPixelSize;
for (int nRegion = 0; nRegion < regionCount; nRegion++)
{
var region = pRegions[nRegion];
int regLineStride = region.imageExtent.width * dstPixelSize;
for (int z = 0; z < region.imageExtent.depth; z++)
{
int bufferOffset = region.bufferOffset;
int bufferImageHeight = region.bufferImageHeight;
int bufferRowLength = region.bufferRowLength;
if (bufferImageHeight == 0 || bufferRowLength == 0)
{
bufferImageHeight = m_imageExtent.height;
bufferRowLength = m_imageExtent.width * dstPixelSize;
}
int srcLineStride = bufferRowLength;
int srcDepthStride = bufferImageHeight * bufferRowLength;
int srcOffset = (z * srcDepthStride) + bufferOffset + softwareBuffer.m_memoryOffset;
int dstOffset = ((region.imageOffset.z + z) * dstDepthStride) + (region.imageOffset.y * dstLineStride) + (region.imageOffset.x * dstPixelSize);
for (int y = 0; y < region.imageExtent.height; y++)
{
int imgOffs = dstOffset + (y * dstLineStride);
int bufOffs = srcOffset + (y * srcLineStride);
Buffer.BlockCopy(sdm.m_bytes, bufOffs, m_imageData, imgOffs, regLineStride);
}
}
}
}
public override VkResult CreateBuffer(VkBufferCreateInfo pCreateInfo, out VkBuffer pBuffer)
{
pBuffer = new SoftwareBuffer(this, pCreateInfo);
return(VkResult.VK_SUCCESS);
}