void waitAtEndOfFrame()
{
uint64_t local_fence_value = fence_value;
WINCHECK( commandQueue->Signal( fence, local_fence_value ) );
++fence_value;
if( fence->GetCompletedValue() < local_fence_value )
{
WINCHECK( fence->SetEventOnCompletion( local_fence_value, fence_event ) );
WaitForSingleObject( fence_event, INFINITE );
}
}
void* RenderAPI_D3D12::BeginModifyTexture(void* textureHandle, int textureWidth, int textureHeight, int* outRowPitch)
{
ID3D12Fence* fence = s_D3D12->GetFrameFence();
// Wait on the previous job (example only - simplifies resource management)
if (fence->GetCompletedValue() < s_D3D12FenceValue)
{
fence->SetEventOnCompletion(s_D3D12FenceValue, s_D3D12Event);
WaitForSingleObject(s_D3D12Event, INFINITE);
}
// Begin a command list
s_D3D12CmdAlloc->Reset();
s_D3D12CmdList->Reset(s_D3D12CmdAlloc, nullptr);
// Fill data
const UINT64 kDataSize = textureWidth * textureHeight * 4;
ID3D12Resource* upload = GetUploadResource(kDataSize);
void* mapped = NULL;
upload->Map(0, NULL, &mapped);
*outRowPitch = textureWidth * 4;
return mapped;
}
