//----------------------------------------------------------------------------//
void Direct3D11Texture::saveToMemory(void* buffer)
{
if (!d_texture)
return;
String exception_msg;
D3D11_TEXTURE2D_DESC tex_desc;
d_texture->GetDesc(&tex_desc);
tex_desc.Usage = D3D11_USAGE_STAGING;
tex_desc.BindFlags = 0;
tex_desc.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
ID3D11Texture2D* offscreen;
if (SUCCEEDED(d_device.d_device->CreateTexture2D(&tex_desc, 0, &offscreen)))
{
d_device.d_context->CopyResource(offscreen, d_texture);
D3D11_MAPPED_SUBRESOURCE mapped_tex;
if (SUCCEEDED(d_device.d_context->Map(offscreen, 0, D3D11_MAP_READ,
0, &mapped_tex)))
{
blitFromSurface(static_cast<uint32*>(mapped_tex.pData),
static_cast<uint32*>(buffer),
Size(static_cast<float>(tex_desc.Width),
static_cast<float>(tex_desc.Height)),
mapped_tex.RowPitch);
d_device.d_context->Unmap(offscreen, 0);
}
else
exception_msg.assign("ID3D11Texture2D::Map failed.");
offscreen->Release();
}
else
exception_msg.assign(
"ID3D11Device::CreateTexture2D failed for 'offscreen'.");
if (!exception_msg.empty())
CEGUI_THROW(RendererException(exception_msg));
}
//----------------------------------------------------------------------------//
void Direct3D10Texture::blitFromMemory(const void* sourceData, const Rectf& area)
{
if (!d_texture)
return;
uint32* buff = new uint32[static_cast<size_t>(area.getWidth()) *
static_cast<size_t>(area.getHeight())];
blitFromSurface(static_cast<const uint32*>(sourceData), buff,
area.getSize(), static_cast<size_t>(area.getWidth()) * 4);
D3D10_BOX dst_box = {static_cast<UINT>(area.left()),
static_cast<UINT>(area.top()),
0,
static_cast<UINT>(area.right()),
static_cast<UINT>(area.bottom()),
1};
d_device.UpdateSubresource(d_texture, 0, &dst_box, buff,
static_cast<UINT>(area.getWidth()) * 4, 0);
delete[] buff;
}
