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author | crupest <crupest@outlook.com> | 2020-10-30 00:07:57 +0800 |
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committer | crupest <crupest@outlook.com> | 2020-10-30 00:07:57 +0800 |
commit | 6aa2201797a9ed64ce0178215ae941d0c5f09579 (patch) | |
tree | 9a74ee8d9f616afbe693ef7825a71474850831b5 /src/win/graph/direct/WindowRenderTarget.cpp | |
parent | b4cb4fb7552d35c267bdb66913e4c822f16346ab (diff) | |
download | cru-6aa2201797a9ed64ce0178215ae941d0c5f09579.tar.gz cru-6aa2201797a9ed64ce0178215ae941d0c5f09579.tar.bz2 cru-6aa2201797a9ed64ce0178215ae941d0c5f09579.zip |
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Diffstat (limited to 'src/win/graph/direct/WindowRenderTarget.cpp')
-rw-r--r-- | src/win/graph/direct/WindowRenderTarget.cpp | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/src/win/graph/direct/WindowRenderTarget.cpp b/src/win/graph/direct/WindowRenderTarget.cpp deleted file mode 100644 index d26fccf6..00000000 --- a/src/win/graph/direct/WindowRenderTarget.cpp +++ /dev/null @@ -1,81 +0,0 @@ -#include "cru/win/graph/direct/WindowRenderTarget.hpp" - -#include "cru/win/graph/direct/Exception.hpp" -#include "cru/win/graph/direct/Factory.hpp" - -namespace cru::platform::graph::win::direct { -D2DWindowRenderTarget::D2DWindowRenderTarget( - gsl::not_null<DirectGraphFactory*> factory, HWND hwnd) - : factory_(factory), hwnd_(hwnd) { - const auto d3d11_device = factory->GetD3D11Device(); - const auto dxgi_factory = factory->GetDxgiFactory(); - - d2d1_device_context_ = factory->CreateD2D1DeviceContext(); - d2d1_device_context_->SetUnitMode(D2D1_UNIT_MODE_DIPS); - - // Allocate a descriptor. - DXGI_SWAP_CHAIN_DESC1 swap_chain_desc; - swap_chain_desc.Width = 0; // use automatic sizing - swap_chain_desc.Height = 0; - swap_chain_desc.Format = - DXGI_FORMAT_B8G8R8A8_UNORM; // this is the most common swapchain format - swap_chain_desc.Stereo = false; - swap_chain_desc.SampleDesc.Count = 1; // don't use multi-sampling - swap_chain_desc.SampleDesc.Quality = 0; - swap_chain_desc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT; - swap_chain_desc.BufferCount = 2; // use double buffering to enable flip - swap_chain_desc.Scaling = DXGI_SCALING_NONE; - swap_chain_desc.SwapEffect = - DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL; // all apps must use this SwapEffect - swap_chain_desc.AlphaMode = DXGI_ALPHA_MODE_UNSPECIFIED; - swap_chain_desc.Flags = 0; - - // Get the final swap chain for this window from the DXGI factory. - ThrowIfFailed(dxgi_factory->CreateSwapChainForHwnd( - d3d11_device, hwnd, &swap_chain_desc, nullptr, nullptr, - &dxgi_swap_chain_)); - - CreateTargetBitmap(); -} - -void D2DWindowRenderTarget::SetDpi(float x, float y) { - d2d1_device_context_->SetDpi(x, y); -} - -void D2DWindowRenderTarget::ResizeBuffer(const int width, const int height) { - // In order to resize buffer, we need to untarget the buffer first. - d2d1_device_context_->SetTarget(nullptr); - target_bitmap_ = nullptr; - ThrowIfFailed(dxgi_swap_chain_->ResizeBuffers(0, width, height, - DXGI_FORMAT_UNKNOWN, 0)); - CreateTargetBitmap(); -} - -void D2DWindowRenderTarget::Present() { - ThrowIfFailed(dxgi_swap_chain_->Present(1, 0)); -} - -void D2DWindowRenderTarget::CreateTargetBitmap() { - Expects(target_bitmap_ == nullptr); // target bitmap must not exist. - - // Direct2D needs the dxgi version of the backbuffer surface pointer. - Microsoft::WRL::ComPtr<IDXGISurface> dxgi_back_buffer; - ThrowIfFailed( - dxgi_swap_chain_->GetBuffer(0, IID_PPV_ARGS(&dxgi_back_buffer))); - - float dpi_x, dpi_y; - d2d1_device_context_->GetDpi(&dpi_x, &dpi_y); - - auto bitmap_properties = D2D1::BitmapProperties1( - D2D1_BITMAP_OPTIONS_TARGET | D2D1_BITMAP_OPTIONS_CANNOT_DRAW, - D2D1::PixelFormat(DXGI_FORMAT_B8G8R8A8_UNORM, D2D1_ALPHA_MODE_IGNORE), - dpi_x, dpi_y); - - // Get a D2D surface from the DXGI back buffer to use as the D2D render - // target. - ThrowIfFailed(d2d1_device_context_->CreateBitmapFromDxgiSurface( - dxgi_back_buffer.Get(), &bitmap_properties, &target_bitmap_)); - - d2d1_device_context_->SetTarget(target_bitmap_.Get()); -} -} // namespace cru::platform::graph::win::direct |