Texture::Lock DirectX11_Texture::_tryLockSystem(int x, int y, int w, int h)
{
Lock lock;
Image::Format nativeFormat = april::rendersys->getNativeTextureFormat(this->format);
int gpuBpp = Image::getFormatBpp(nativeFormat);
D3D11_MAPPED_SUBRESOURCE* mappedSubResource = new D3D11_MAPPED_SUBRESOURCE();
memset(mappedSubResource, 0, sizeof(D3D11_MAPPED_SUBRESOURCE));
// Map() is being used for all, because UpdateSubResource() / UpdateSubResource1() seems to use Map() internally somewhere and the memory pointer can change
HRESULT hr = APRIL_D3D_DEVICE_CONTEXT->Map(this->d3dTexture.Get(), 0, D3D11_MAP_WRITE_DISCARD, 0, mappedSubResource);
if (!FAILED(hr))
{
lock.systemBuffer = mappedSubResource;
lock.activateLock(x, y, w, h, x, y, (unsigned char*)mappedSubResource->pData, mappedSubResource->RowPitch / gpuBpp, this->height, nativeFormat);
}
return lock;
}
