dolphin/Source/Core/VideoBackends/D3D/D3DBase.cpp

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// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#include "Common/StringUtil.h"
#include "VideoBackends/D3D/D3DBase.h"
#include "VideoBackends/D3D/D3DTexture.h"
#include "VideoBackends/D3D/GfxState.h"
#include "VideoCommon/VideoConfig.h"
namespace DX11
{
HINSTANCE hD3DCompilerDll = nullptr;
D3DREFLECT PD3DReflect = nullptr;
pD3DCompile PD3DCompile = nullptr;
int d3dcompiler_dll_ref = 0;
CREATEDXGIFACTORY PCreateDXGIFactory = nullptr;
HINSTANCE hDXGIDll = nullptr;
int dxgi_dll_ref = 0;
typedef HRESULT (WINAPI* D3D11CREATEDEVICEANDSWAPCHAIN)(IDXGIAdapter*, D3D_DRIVER_TYPE, HMODULE, UINT, CONST D3D_FEATURE_LEVEL*, UINT, UINT, CONST DXGI_SWAP_CHAIN_DESC*, IDXGISwapChain**, ID3D11Device**, D3D_FEATURE_LEVEL*, ID3D11DeviceContext**);
static D3D11CREATEDEVICE PD3D11CreateDevice = nullptr;
D3D11CREATEDEVICEANDSWAPCHAIN PD3D11CreateDeviceAndSwapChain = nullptr;
HINSTANCE hD3DDll = nullptr;
int d3d_dll_ref = 0;
namespace D3D
{
ID3D11Device* device = nullptr;
ID3D11DeviceContext* context = nullptr;
static IDXGISwapChain* swapchain = nullptr;
D3D_FEATURE_LEVEL featlevel;
D3DTexture2D* backbuf = nullptr;
HWND hWnd;
std::vector<DXGI_SAMPLE_DESC> aa_modes; // supported AA modes of the current adapter
bool bgra_textures_supported;
#define NUM_SUPPORTED_FEATURE_LEVELS 3
const D3D_FEATURE_LEVEL supported_feature_levels[NUM_SUPPORTED_FEATURE_LEVELS] = {
D3D_FEATURE_LEVEL_11_0,
D3D_FEATURE_LEVEL_10_1,
D3D_FEATURE_LEVEL_10_0
};
unsigned int xres, yres;
bool bFrameInProgress = false;
HRESULT LoadDXGI()
{
if (dxgi_dll_ref++ > 0) return S_OK;
if (hDXGIDll) return S_OK;
hDXGIDll = LoadLibraryA("dxgi.dll");
if (!hDXGIDll)
{
MessageBoxA(nullptr, "Failed to load dxgi.dll", "Critical error", MB_OK | MB_ICONERROR);
--dxgi_dll_ref;
return E_FAIL;
}
PCreateDXGIFactory = (CREATEDXGIFACTORY)GetProcAddress(hDXGIDll, "CreateDXGIFactory");
if (PCreateDXGIFactory == nullptr) MessageBoxA(nullptr, "GetProcAddress failed for CreateDXGIFactory!", "Critical error", MB_OK | MB_ICONERROR);
return S_OK;
}
HRESULT LoadD3D()
{
if (d3d_dll_ref++ > 0) return S_OK;
if (hD3DDll) return S_OK;
hD3DDll = LoadLibraryA("d3d11.dll");
if (!hD3DDll)
{
MessageBoxA(nullptr, "Failed to load d3d11.dll", "Critical error", MB_OK | MB_ICONERROR);
--d3d_dll_ref;
return E_FAIL;
}
PD3D11CreateDevice = (D3D11CREATEDEVICE)GetProcAddress(hD3DDll, "D3D11CreateDevice");
if (PD3D11CreateDevice == nullptr) MessageBoxA(nullptr, "GetProcAddress failed for D3D11CreateDevice!", "Critical error", MB_OK | MB_ICONERROR);
PD3D11CreateDeviceAndSwapChain = (D3D11CREATEDEVICEANDSWAPCHAIN)GetProcAddress(hD3DDll, "D3D11CreateDeviceAndSwapChain");
if (PD3D11CreateDeviceAndSwapChain == nullptr) MessageBoxA(nullptr, "GetProcAddress failed for D3D11CreateDeviceAndSwapChain!", "Critical error", MB_OK | MB_ICONERROR);
return S_OK;
}
HRESULT LoadD3DCompiler()
{
if (d3dcompiler_dll_ref++ > 0) return S_OK;
if (hD3DCompilerDll) return S_OK;
// try to load D3DCompiler first to check whether we have proper runtime support
// try to use the dll the backend was compiled against first - don't bother about debug runtimes
hD3DCompilerDll = LoadLibraryA(D3DCOMPILER_DLL_A);
if (!hD3DCompilerDll)
{
// if that fails, use the dll which should be available in every SDK which officially supports DX11.
hD3DCompilerDll = LoadLibraryA("D3DCompiler_42.dll");
if (!hD3DCompilerDll)
{
MessageBoxA(nullptr, "Failed to load D3DCompiler_42.dll, update your DX11 runtime, please", "Critical error", MB_OK | MB_ICONERROR);
return E_FAIL;
}
else
{
NOTICE_LOG(VIDEO, "Successfully loaded D3DCompiler_42.dll. If you're having trouble, try updating your DX runtime first.");
}
}
PD3DReflect = (D3DREFLECT)GetProcAddress(hD3DCompilerDll, "D3DReflect");
if (PD3DReflect == nullptr) MessageBoxA(nullptr, "GetProcAddress failed for D3DReflect!", "Critical error", MB_OK | MB_ICONERROR);
PD3DCompile = (pD3DCompile)GetProcAddress(hD3DCompilerDll, "D3DCompile");
if (PD3DCompile == nullptr) MessageBoxA(nullptr, "GetProcAddress failed for D3DCompile!", "Critical error", MB_OK | MB_ICONERROR);
return S_OK;
}
void UnloadDXGI()
{
if (!dxgi_dll_ref) return;
if (--dxgi_dll_ref != 0) return;
if (hDXGIDll) FreeLibrary(hDXGIDll);
hDXGIDll = nullptr;
PCreateDXGIFactory = nullptr;
}
void UnloadD3D()
{
if (!d3d_dll_ref) return;
if (--d3d_dll_ref != 0) return;
if (hD3DDll) FreeLibrary(hD3DDll);
hD3DDll = nullptr;
PD3D11CreateDevice = nullptr;
PD3D11CreateDeviceAndSwapChain = nullptr;
}
void UnloadD3DCompiler()
{
if (!d3dcompiler_dll_ref) return;
if (--d3dcompiler_dll_ref != 0) return;
if (hD3DCompilerDll) FreeLibrary(hD3DCompilerDll);
hD3DCompilerDll = nullptr;
PD3DReflect = nullptr;
}
std::vector<DXGI_SAMPLE_DESC> EnumAAModes(IDXGIAdapter* adapter)
{
std::vector<DXGI_SAMPLE_DESC> aa_modes;
// NOTE: D3D 10.0 doesn't support multisampled resources which are bound as depth buffers AND shader resources.
// Thus, we can't have MSAA with 10.0 level hardware.
ID3D11Device* device;
ID3D11DeviceContext* context;
D3D_FEATURE_LEVEL feat_level;
HRESULT hr = PD3D11CreateDevice(adapter, D3D_DRIVER_TYPE_UNKNOWN, nullptr, D3D11_CREATE_DEVICE_SINGLETHREADED, supported_feature_levels, NUM_SUPPORTED_FEATURE_LEVELS, D3D11_SDK_VERSION, &device, &feat_level, &context);
if (FAILED(hr) || feat_level == D3D_FEATURE_LEVEL_10_0)
{
DXGI_SAMPLE_DESC desc;
desc.Count = 1;
desc.Quality = 0;
aa_modes.push_back(desc);
SAFE_RELEASE(context);
SAFE_RELEASE(device);
}
else
{
for (int samples = 0; samples < D3D11_MAX_MULTISAMPLE_SAMPLE_COUNT; ++samples)
{
UINT quality_levels = 0;
device->CheckMultisampleQualityLevels(DXGI_FORMAT_R8G8B8A8_UNORM, samples, &quality_levels);
if (quality_levels > 0) {
DXGI_SAMPLE_DESC desc;
desc.Count = samples;
for (desc.Quality = 0; desc.Quality < quality_levels; ++desc.Quality)
aa_modes.push_back(desc);
}
}
context->Release();
device->Release();
}
return aa_modes;
}
D3D_FEATURE_LEVEL GetFeatureLevel(IDXGIAdapter* adapter)
{
D3D_FEATURE_LEVEL feat_level = D3D_FEATURE_LEVEL_9_1;
PD3D11CreateDevice(adapter, D3D_DRIVER_TYPE_UNKNOWN, nullptr, D3D11_CREATE_DEVICE_SINGLETHREADED, supported_feature_levels, NUM_SUPPORTED_FEATURE_LEVELS, D3D11_SDK_VERSION, nullptr, &feat_level, nullptr);
return feat_level;
}
DXGI_SAMPLE_DESC GetAAMode(int index)
{
return aa_modes[index];
}
HRESULT Create(HWND wnd)
{
hWnd = wnd;
HRESULT hr;
RECT client;
GetClientRect(hWnd, &client);
xres = client.right - client.left;
yres = client.bottom - client.top;
hr = LoadDXGI();
if (SUCCEEDED(hr)) hr = LoadD3D();
if (SUCCEEDED(hr)) hr = LoadD3DCompiler();
if (FAILED(hr))
{
UnloadDXGI();
UnloadD3D();
UnloadD3DCompiler();
return hr;
}
IDXGIFactory* factory;
IDXGIAdapter* adapter;
IDXGIOutput* output;
hr = PCreateDXGIFactory(__uuidof(IDXGIFactory), (void**)&factory);
if (FAILED(hr)) MessageBox(wnd, _T("Failed to create IDXGIFactory object"), _T("Dolphin Direct3D 11 backend"), MB_OK | MB_ICONERROR);
hr = factory->EnumAdapters(g_ActiveConfig.iAdapter, &adapter);
if (FAILED(hr))
{
// try using the first one
hr = factory->EnumAdapters(0, &adapter);
if (FAILED(hr)) MessageBox(wnd, _T("Failed to enumerate adapters"), _T("Dolphin Direct3D 11 backend"), MB_OK | MB_ICONERROR);
}
// TODO: Make this configurable
hr = adapter->EnumOutputs(0, &output);
if (FAILED(hr))
{
// try using the first one
hr = adapter->EnumOutputs(0, &output);
if (FAILED(hr)) MessageBox(wnd, _T("Failed to enumerate outputs!\n")
_T("This usually happens when you've set your video adapter to the Nvidia GPU in an Optimus-equipped system.\n")
_T("Set Dolphin to use the high-performance graphics in Nvidia's drivers instead and leave Dolphin's video adapter set to the Intel GPU."),
_T("Dolphin Direct3D 11 backend"), MB_OK | MB_ICONERROR);
}
// get supported AA modes
aa_modes = EnumAAModes(adapter);
if (g_Config.iMultisampleMode >= (int)aa_modes.size())
{
g_Config.iMultisampleMode = 0;
UpdateActiveConfig();
}
DXGI_SWAP_CHAIN_DESC swap_chain_desc;
memset(&swap_chain_desc, 0, sizeof(swap_chain_desc));
swap_chain_desc.BufferCount = 1;
swap_chain_desc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
swap_chain_desc.OutputWindow = wnd;
swap_chain_desc.SampleDesc.Count = 1;
swap_chain_desc.SampleDesc.Quality = 0;
swap_chain_desc.Windowed = TRUE;
DXGI_MODE_DESC mode_desc;
memset(&mode_desc, 0, sizeof(mode_desc));
mode_desc.Width = xres;
mode_desc.Height = yres;
mode_desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
mode_desc.Scaling = DXGI_MODE_SCALING_UNSPECIFIED;
hr = output->FindClosestMatchingMode(&mode_desc, &swap_chain_desc.BufferDesc, nullptr);
if (FAILED(hr)) MessageBox(wnd, _T("Failed to find a supported video mode"), _T("Dolphin Direct3D 11 backend"), MB_OK | MB_ICONERROR);
// forcing buffer resolution to xres and yres.. TODO: The new video mode might not actually be supported!
swap_chain_desc.BufferDesc.Width = xres;
swap_chain_desc.BufferDesc.Height = yres;
#if defined(_DEBUG) || defined(DEBUGFAST)
// Creating debug devices can sometimes fail if the user doesn't have the correct
// version of the DirectX SDK. If it does, simply fallback to a non-debug device.
{
hr = PD3D11CreateDeviceAndSwapChain(adapter, D3D_DRIVER_TYPE_UNKNOWN, nullptr,
D3D11_CREATE_DEVICE_SINGLETHREADED | D3D11_CREATE_DEVICE_DEBUG,
supported_feature_levels, NUM_SUPPORTED_FEATURE_LEVELS,
D3D11_SDK_VERSION, &swap_chain_desc, &swapchain, &device,
&featlevel, &context);
}
if (FAILED(hr))
#endif
{
hr = PD3D11CreateDeviceAndSwapChain(adapter, D3D_DRIVER_TYPE_UNKNOWN, nullptr,
D3D11_CREATE_DEVICE_SINGLETHREADED,
supported_feature_levels, NUM_SUPPORTED_FEATURE_LEVELS,
D3D11_SDK_VERSION, &swap_chain_desc, &swapchain, &device,
&featlevel, &context);
}
if (FAILED(hr))
{
MessageBox(wnd, _T("Failed to initialize Direct3D.\nMake sure your video card supports at least D3D 10.0"), _T("Dolphin Direct3D 11 backend"), MB_OK | MB_ICONERROR);
SAFE_RELEASE(device);
SAFE_RELEASE(context);
SAFE_RELEASE(swapchain);
return E_FAIL;
}
SetDebugObjectName((ID3D11DeviceChild*)context, "device context");
SAFE_RELEASE(factory);
SAFE_RELEASE(output);
SAFE_RELEASE(adapter);
ID3D11Texture2D* buf;
hr = swapchain->GetBuffer(0, IID_ID3D11Texture2D, (void**)&buf);
if (FAILED(hr))
{
MessageBox(wnd, _T("Failed to get swapchain buffer"), _T("Dolphin Direct3D 11 backend"), MB_OK | MB_ICONERROR);
SAFE_RELEASE(device);
SAFE_RELEASE(context);
SAFE_RELEASE(swapchain);
return E_FAIL;
}
backbuf = new D3DTexture2D(buf, D3D11_BIND_RENDER_TARGET);
SAFE_RELEASE(buf);
CHECK(backbuf!=nullptr, "Create back buffer texture");
SetDebugObjectName((ID3D11DeviceChild*)backbuf->GetTex(), "backbuffer texture");
SetDebugObjectName((ID3D11DeviceChild*)backbuf->GetRTV(), "backbuffer render target view");
context->OMSetRenderTargets(1, &backbuf->GetRTV(), nullptr);
// BGRA textures are easier to deal with in TextureCache, but might not be supported by the hardware
UINT format_support;
device->CheckFormatSupport(DXGI_FORMAT_B8G8R8A8_UNORM, &format_support);
bgra_textures_supported = (format_support & D3D11_FORMAT_SUPPORT_TEXTURE2D) != 0;
stateman = new StateManager;
return S_OK;
}
void Close()
{
// release all bound resources
context->ClearState();
SAFE_RELEASE(backbuf);
SAFE_RELEASE(swapchain);
SAFE_DELETE(stateman);
context->Flush(); // immediately destroy device objects
SAFE_RELEASE(context);
ULONG references = device->Release();
if (references)
{
ERROR_LOG(VIDEO, "Unreleased references: %i.", references);
}
else
{
NOTICE_LOG(VIDEO, "Successfully released all device references!");
}
device = nullptr;
// unload DLLs
UnloadD3D();
UnloadDXGI();
}
const char* VertexShaderVersionString()
{
if (featlevel == D3D_FEATURE_LEVEL_11_0) return "vs_5_0";
else if (featlevel == D3D_FEATURE_LEVEL_10_1) return "vs_4_1";
else /*if(featlevel == D3D_FEATURE_LEVEL_10_0)*/ return "vs_4_0";
}
const char* GeometryShaderVersionString()
{
if (featlevel == D3D_FEATURE_LEVEL_11_0) return "gs_5_0";
else if (featlevel == D3D_FEATURE_LEVEL_10_1) return "gs_4_1";
else /*if(featlevel == D3D_FEATURE_LEVEL_10_0)*/ return "gs_4_0";
}
const char* PixelShaderVersionString()
{
if (featlevel == D3D_FEATURE_LEVEL_11_0) return "ps_5_0";
else if (featlevel == D3D_FEATURE_LEVEL_10_1) return "ps_4_1";
else /*if(featlevel == D3D_FEATURE_LEVEL_10_0)*/ return "ps_4_0";
}
D3DTexture2D* &GetBackBuffer() { return backbuf; }
unsigned int GetBackBufferWidth() { return xres; }
unsigned int GetBackBufferHeight() { return yres; }
bool BGRATexturesSupported() { return bgra_textures_supported; }
// Returns the maximum width/height of a texture. This value only depends upon the feature level in DX11
unsigned int GetMaxTextureSize()
{
switch (featlevel)
{
case D3D_FEATURE_LEVEL_11_0:
return D3D11_REQ_TEXTURE2D_U_OR_V_DIMENSION;
case D3D_FEATURE_LEVEL_10_1:
case D3D_FEATURE_LEVEL_10_0:
return D3D10_REQ_TEXTURE2D_U_OR_V_DIMENSION;
case D3D_FEATURE_LEVEL_9_3:
return 4096;
case D3D_FEATURE_LEVEL_9_2:
case D3D_FEATURE_LEVEL_9_1:
return 2048;
default:
return 0;
}
}
void Reset()
{
// release all back buffer references
SAFE_RELEASE(backbuf);
// resize swapchain buffers
RECT client;
GetClientRect(hWnd, &client);
xres = client.right - client.left;
yres = client.bottom - client.top;
D3D::swapchain->ResizeBuffers(1, xres, yres, DXGI_FORMAT_R8G8B8A8_UNORM, 0);
// recreate back buffer texture
ID3D11Texture2D* buf;
HRESULT hr = swapchain->GetBuffer(0, IID_ID3D11Texture2D, (void**)&buf);
if (FAILED(hr))
{
MessageBox(hWnd, _T("Failed to get swapchain buffer"), _T("Dolphin Direct3D 11 backend"), MB_OK | MB_ICONERROR);
SAFE_RELEASE(device);
SAFE_RELEASE(context);
SAFE_RELEASE(swapchain);
return;
}
backbuf = new D3DTexture2D(buf, D3D11_BIND_RENDER_TARGET);
SAFE_RELEASE(buf);
CHECK(backbuf!=nullptr, "Create back buffer texture");
SetDebugObjectName((ID3D11DeviceChild*)backbuf->GetTex(), "backbuffer texture");
SetDebugObjectName((ID3D11DeviceChild*)backbuf->GetRTV(), "backbuffer render target view");
}
bool BeginFrame()
{
if (bFrameInProgress)
{
PanicAlert("BeginFrame called although a frame is already in progress");
return false;
}
bFrameInProgress = true;
return (device != nullptr);
}
void EndFrame()
{
if (!bFrameInProgress)
{
PanicAlert("EndFrame called although no frame is in progress");
return;
}
bFrameInProgress = false;
}
void Present()
{
// TODO: Is 1 the correct value for vsyncing?
swapchain->Present((UINT)g_ActiveConfig.IsVSync(), 0);
}
} // namespace D3D
} // namespace DX11