gs_texture_2d::gs_texture_2d(gs_device_t *device, uint32_t handle)
: isShared (true),
sharedHandle (handle)
{
HRESULT hr;
hr = device->device->OpenSharedResource((HANDLE)(uintptr_t)handle,
__uuidof(ID3D11Texture2D), (void**)texture.Assign());
if (FAILED(hr))
throw HRError("Failed to open resource", hr);
D3D11_TEXTURE2D_DESC desc;
texture->GetDesc(&desc);
this->type = GS_TEXTURE_2D;
this->format = ConvertDXGITextureFormat(desc.Format);
this->levels = 1;
this->device = device;
this->width = desc.Width;
this->height = desc.Height;
this->dxgiFormat = desc.Format;
D3D11_SHADER_RESOURCE_VIEW_DESC resourceDesc = {};
resourceDesc.Format = desc.Format;
resourceDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
resourceDesc.Texture2D.MipLevels = 1;
hr = device->device->CreateShaderResourceView(texture, &resourceDesc,
shaderRes.Assign());
if (FAILED(hr))
throw HRError("Failed to create shader resource view", hr);
}
static inline void copy_texture(gs_duplicator_t *d, ID3D11Texture2D *tex)
{
D3D11_TEXTURE2D_DESC desc;
tex->GetDesc(&desc);
if (!d->texture ||
d->texture->width != desc.Width ||
d->texture->height != desc.Height) {
delete d->texture;
d->texture = (gs_texture_2d*)gs_texture_create(
desc.Width, desc.Height,
ConvertDXGITextureFormat(desc.Format), 1,
nullptr, 0);
}
if (!!d->texture)
d->device->context->CopyResource(d->texture->texture,
tex);
}
