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//
// Copyright (c) 2014 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// NativeWindow.cpp: Handler for managing HWND native window types.
#include "libANGLE/renderer/d3d/d3d11/NativeWindow.h"
#include "libANGLE/renderer/d3d/d3d11/renderer11_utils.h"
#include "common/debug.h"
#include <initguid.h>
#if !defined(__MINGW32__)
#include <dcomp.h>
#endif
namespace rx
{
NativeWindow::NativeWindow(EGLNativeWindowType window,
const egl::Config *config,
bool directComposition)
: mWindow(window),
mDirectComposition(directComposition),
mDevice(nullptr),
mCompositionTarget(nullptr),
mVisual(nullptr),
mConfig(config)
{
}
NativeWindow::~NativeWindow()
{
#if !defined(__MINGW32__)
SafeRelease(mCompositionTarget);
SafeRelease(mDevice);
SafeRelease(mVisual);
#endif
}
bool NativeWindow::initialize()
{
return true;
}
bool NativeWindow::getClientRect(LPRECT rect)
{
return GetClientRect(mWindow, rect) == TRUE;
}
bool NativeWindow::isIconic()
{
return IsIconic(mWindow) == TRUE;
}
bool NativeWindow::isValidNativeWindow(EGLNativeWindowType window)
{
return IsWindow(window) == TRUE;
}
#if defined(ANGLE_ENABLE_D3D11)
HRESULT NativeWindow::createSwapChain(ID3D11Device* device, DXGIFactory* factory,
DXGI_FORMAT format, unsigned int width, unsigned int height,
DXGISwapChain** swapChain)
{
if (device == NULL || factory == NULL || swapChain == NULL || width == 0 || height == 0)
{
return E_INVALIDARG;
}
#if !defined(__MINGW32__)
if (mDirectComposition)
{
HMODULE dcomp = ::GetModuleHandle(TEXT("dcomp.dll"));
if (!dcomp)
{
return E_INVALIDARG;
}
typedef HRESULT(WINAPI * PFN_DCOMPOSITION_CREATE_DEVICE)(
IDXGIDevice * dxgiDevice, REFIID iid, void **dcompositionDevice);
PFN_DCOMPOSITION_CREATE_DEVICE createDComp =
reinterpret_cast<PFN_DCOMPOSITION_CREATE_DEVICE>(
GetProcAddress(dcomp, "DCompositionCreateDevice"));
if (!createDComp)
{
return E_INVALIDARG;
}
if (!mDevice)
{
IDXGIDevice *dxgiDevice = d3d11::DynamicCastComObject<IDXGIDevice>(device);
HRESULT result = createDComp(dxgiDevice, __uuidof(IDCompositionDevice),
reinterpret_cast<void **>(&mDevice));
SafeRelease(dxgiDevice);
if (FAILED(result))
{
return result;
}
}
if (!mCompositionTarget)
{
HRESULT result = mDevice->CreateTargetForHwnd(mWindow, TRUE, &mCompositionTarget);
if (FAILED(result))
{
return result;
}
}
if (!mVisual)
{
HRESULT result = mDevice->CreateVisual(&mVisual);
if (FAILED(result))
{
return result;
}
}
IDXGIFactory2 *factory2 = d3d11::DynamicCastComObject<IDXGIFactory2>(factory);
DXGI_SWAP_CHAIN_DESC1 swapChainDesc = {0};
swapChainDesc.Width = width;
swapChainDesc.Height = height;
swapChainDesc.Format = format;
swapChainDesc.Stereo = FALSE;
swapChainDesc.SampleDesc.Count = 1;
swapChainDesc.SampleDesc.Quality = 0;
swapChainDesc.BufferUsage =
DXGI_USAGE_RENDER_TARGET_OUTPUT | DXGI_USAGE_BACK_BUFFER | DXGI_USAGE_SHADER_INPUT;
swapChainDesc.BufferCount = 2;
swapChainDesc.Scaling = DXGI_SCALING_STRETCH;
swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
swapChainDesc.AlphaMode =
mConfig->alphaSize == 0 ? DXGI_ALPHA_MODE_IGNORE : DXGI_ALPHA_MODE_PREMULTIPLIED;
swapChainDesc.Flags = 0;
IDXGISwapChain1 *swapChain1 = nullptr;
HRESULT result =
factory2->CreateSwapChainForComposition(device, &swapChainDesc, nullptr, &swapChain1);
if (SUCCEEDED(result))
{
*swapChain = static_cast<DXGISwapChain *>(swapChain1);
}
mVisual->SetContent(swapChain1);
mCompositionTarget->SetRoot(mVisual);
SafeRelease(factory2);
return result;
}
// Use IDXGIFactory2::CreateSwapChainForHwnd if DXGI 1.2 is available to create a DXGI_SWAP_EFFECT_SEQUENTIAL swap chain.
IDXGIFactory2 *factory2 = d3d11::DynamicCastComObject<IDXGIFactory2>(factory);
if (factory2 != nullptr)
{
DXGI_SWAP_CHAIN_DESC1 swapChainDesc = { 0 };
swapChainDesc.Width = width;
swapChainDesc.Height = height;
swapChainDesc.Format = format;
swapChainDesc.Stereo = FALSE;
swapChainDesc.SampleDesc.Count = 1;
swapChainDesc.SampleDesc.Quality = 0;
swapChainDesc.BufferUsage =
DXGI_USAGE_RENDER_TARGET_OUTPUT | DXGI_USAGE_SHADER_INPUT | DXGI_USAGE_BACK_BUFFER;
swapChainDesc.BufferCount = 1;
swapChainDesc.Scaling = DXGI_SCALING_STRETCH;
swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_SEQUENTIAL;
swapChainDesc.AlphaMode = DXGI_ALPHA_MODE_UNSPECIFIED;
swapChainDesc.Flags = 0;
IDXGISwapChain1 *swapChain1 = nullptr;
HRESULT result = factory2->CreateSwapChainForHwnd(device, mWindow, &swapChainDesc, nullptr, nullptr, &swapChain1);
if (SUCCEEDED(result))
{
const HRESULT makeWindowAssociationResult = factory->MakeWindowAssociation(mWindow, DXGI_MWA_NO_ALT_ENTER);
UNUSED_VARIABLE(makeWindowAssociationResult);
*swapChain = static_cast<DXGISwapChain*>(swapChain1);
}
SafeRelease(factory2);
return result;
}
#endif // !__MINGW32__
DXGI_SWAP_CHAIN_DESC swapChainDesc = {};
swapChainDesc.BufferCount = 1;
swapChainDesc.BufferDesc.Format = format;
swapChainDesc.BufferDesc.Width = width;
swapChainDesc.BufferDesc.Height = height;
swapChainDesc.BufferDesc.Scaling = DXGI_MODE_SCALING_UNSPECIFIED;
swapChainDesc.BufferDesc.ScanlineOrdering = DXGI_MODE_SCANLINE_ORDER_UNSPECIFIED;
swapChainDesc.BufferDesc.RefreshRate.Numerator = 0;
swapChainDesc.BufferDesc.RefreshRate.Denominator = 1;
swapChainDesc.BufferUsage =
DXGI_USAGE_RENDER_TARGET_OUTPUT | DXGI_USAGE_SHADER_INPUT | DXGI_USAGE_BACK_BUFFER;
swapChainDesc.Flags = 0;
swapChainDesc.OutputWindow = mWindow;
swapChainDesc.SampleDesc.Count = 1;
swapChainDesc.SampleDesc.Quality = 0;
swapChainDesc.Windowed = TRUE;
swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
const HRESULT result = factory->CreateSwapChain(device, &swapChainDesc, swapChain);
if (SUCCEEDED(result))
{
const HRESULT makeWindowAssociationResult = factory->MakeWindowAssociation(mWindow, DXGI_MWA_NO_ALT_ENTER);
UNUSED_VARIABLE(makeWindowAssociationResult);
}
return result;
}
#endif
void NativeWindow::commitChange()
{
#if !defined(__MINGW32__)
if (mDevice)
{
mDevice->Commit();
}
#endif
}
}
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