void D3D11HardwareBuffer::copyData(HardwareBuffer& srcBuffer, UINT32 srcOffset,
UINT32 dstOffset, UINT32 length, bool discardWholeBuffer)
{
// If we're copying same-size buffers in their entirety
if (srcOffset == 0 && dstOffset == 0 &&
length == mSizeInBytes && mSizeInBytes == srcBuffer.getSizeInBytes())
{
mDevice.getImmediateContext()->CopyResource(mD3DBuffer, static_cast<D3D11HardwareBuffer&>(srcBuffer).getD3DBuffer());
if (mDevice.hasError())
{
String errorDescription = mDevice.getErrorDescription();
BS_EXCEPT(RenderingAPIException, "Cannot copy D3D11 resource\nError Description:" + errorDescription);
}
}
else
{
// Copy subregion
D3D11_BOX srcBox;
srcBox.left = (UINT)srcOffset;
srcBox.right = (UINT)srcOffset + length;
srcBox.top = 0;
srcBox.bottom = 1;
srcBox.front = 0;
srcBox.back = 1;
mDevice.getImmediateContext()->CopySubresourceRegion(mD3DBuffer, 0, (UINT)dstOffset, 0, 0,
static_cast<D3D11HardwareBuffer&>(srcBuffer).getD3DBuffer(), 0, &srcBox);
if (mDevice.hasError())
{
String errorDescription = mDevice.getErrorDescription();
BS_EXCEPT(RenderingAPIException, "Cannot copy D3D11 subresource region\nError Description:" + errorDescription);
}
}
}
//---------------------------------------------------------------------
void D3D11HardwareBuffer::copyData(HardwareBuffer& srcBuffer, size_t srcOffset,
size_t dstOffset, size_t length, bool discardWholeBuffer)
{
// If we're copying same-size buffers in their entirety...
if (srcOffset == 0 && dstOffset == 0 &&
length == mSizeInBytes && mSizeInBytes == srcBuffer.getSizeInBytes())
{
// schedule hardware buffer copy
mDevice.GetImmediateContext()->CopyResource(mlpD3DBuffer, static_cast<D3D11HardwareBuffer&>(srcBuffer).getD3DBuffer());
if (mDevice.isError())
{
String errorDescription = mDevice.getErrorDescription();
OGRE_EXCEPT(Exception::ERR_RENDERINGAPI_ERROR,
"Cannot copy D3D11 resource\nError Description:" + errorDescription,
"D3D11HardwareBuffer::copyData");
}
}
else
{
// copy subregion
D3D11_BOX srcBox;
srcBox.left = (UINT)srcOffset;
srcBox.right = (UINT)srcOffset + length;
srcBox.top = 0;
srcBox.bottom = 1;
srcBox.front = 0;
srcBox.back = 1;
mDevice.GetImmediateContext()->CopySubresourceRegion(mlpD3DBuffer, 0, (UINT)dstOffset, 0, 0,
static_cast<D3D11HardwareBuffer&>(srcBuffer).getD3DBuffer(), 0, &srcBox);
if (mDevice.isError())
{
String errorDescription = mDevice.getErrorDescription();
OGRE_EXCEPT(Exception::ERR_RENDERINGAPI_ERROR,
"Cannot copy D3D11 subresource region\nError Description:" + errorDescription,
"D3D11HardwareBuffer::copyData");
}
}
}
void HardwareBuffer::copyData(HardwareBuffer& srcBuffer)
{
size_t sz = std::min(getSizeInBytes(), srcBuffer.getSizeInBytes());
copyData(srcBuffer, 0, 0, sz, TRUE);
}