diff options
Diffstat (limited to 'gfx/angle/checkout/src/libANGLE/renderer/d3d/d3d11/SwapChain11.cpp')
| -rw-r--r-- | gfx/angle/checkout/src/libANGLE/renderer/d3d/d3d11/SwapChain11.cpp | 1119 |
1 files changed, 1119 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/libANGLE/renderer/d3d/d3d11/SwapChain11.cpp b/gfx/angle/checkout/src/libANGLE/renderer/d3d/d3d11/SwapChain11.cpp new file mode 100644 index 0000000000..8470510ea8 --- /dev/null +++ b/gfx/angle/checkout/src/libANGLE/renderer/d3d/d3d11/SwapChain11.cpp @@ -0,0 +1,1119 @@ +// +// Copyright 2012 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. +// + +// SwapChain11.cpp: Implements a back-end specific class for the D3D11 swap chain. + +#include "libANGLE/renderer/d3d/d3d11/SwapChain11.h" + +#include <EGL/eglext.h> + +#include "libANGLE/features.h" +#include "libANGLE/renderer/d3d/DisplayD3D.h" +#include "libANGLE/renderer/d3d/d3d11/NativeWindow11.h" +#include "libANGLE/renderer/d3d/d3d11/Renderer11.h" +#include "libANGLE/renderer/d3d/d3d11/formatutils11.h" +#include "libANGLE/renderer/d3d/d3d11/renderer11_utils.h" +#include "libANGLE/renderer/d3d/d3d11/texture_format_table.h" +#include "libANGLE/trace.h" + +// Precompiled shaders +#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthrough2d11vs.h" +#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrgba2d11ps.h" +#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrgba2dms11ps.h" +#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/resolvecolor2dps.h" + +#ifdef ANGLE_ENABLE_KEYEDMUTEX +# define ANGLE_RESOURCE_SHARE_TYPE D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX +#else +# define ANGLE_RESOURCE_SHARE_TYPE D3D11_RESOURCE_MISC_SHARED +#endif + +namespace rx +{ + +namespace +{ +// To avoid overflow in QPC to Microseconds calculations, since we multiply +// by kMicrosecondsPerSecond, then the QPC value should not exceed +// (2^63 - 1) / 1E6. If it exceeds that threshold, we divide then multiply. +static constexpr int64_t kQPCOverflowThreshold = 0x8637BD05AF7; +static constexpr int64_t kMicrosecondsPerSecond = 1000000; + +bool NeedsOffscreenTexture(Renderer11 *renderer, NativeWindow11 *nativeWindow, EGLint orientation) +{ + // We don't need an offscreen texture if either orientation = INVERT_Y, + // or present path fast is enabled and we're not rendering onto an offscreen surface. + return orientation != EGL_SURFACE_ORIENTATION_INVERT_Y_ANGLE && + !(renderer->presentPathFastEnabled() && nativeWindow->getNativeWindow()); +} +} // anonymous namespace + +SwapChain11::SwapChain11(Renderer11 *renderer, + NativeWindow11 *nativeWindow, + HANDLE shareHandle, + IUnknown *d3dTexture, + GLenum backBufferFormat, + GLenum depthBufferFormat, + EGLint orientation, + EGLint samples) + : SwapChainD3D(shareHandle, d3dTexture, backBufferFormat, depthBufferFormat), + mRenderer(renderer), + mWidth(-1), + mHeight(-1), + mOrientation(orientation), + mAppCreatedShareHandle(mShareHandle != nullptr), + mSwapInterval(0), + mPassThroughResourcesInit(false), + mNativeWindow(nativeWindow), + mFirstSwap(true), + mSwapChain(nullptr), + mSwapChain1(nullptr), + mKeyedMutex(nullptr), + mBackBufferTexture(), + mBackBufferRTView(), + mBackBufferSRView(), + mNeedsOffscreenTexture(NeedsOffscreenTexture(renderer, nativeWindow, orientation)), + mOffscreenTexture(), + mOffscreenRTView(), + mOffscreenSRView(), + mNeedsOffscreenTextureCopy(false), + mOffscreenTextureCopyForSRV(), + mDepthStencilTexture(), + mDepthStencilDSView(), + mDepthStencilSRView(), + mQuadVB(), + mPassThroughSampler(), + mPassThroughIL(), + mPassThroughVS(), + mPassThroughOrResolvePS(), + mPassThroughRS(), + mColorRenderTarget(this, renderer, false), + mDepthStencilRenderTarget(this, renderer, true), + mEGLSamples(samples) +{ + // Check that if present path fast is active then we're using the default orientation + ASSERT(!mRenderer->presentPathFastEnabled() || orientation == 0); + + // Get the performance counter + LARGE_INTEGER counterFreqency = {}; + BOOL success = QueryPerformanceFrequency(&counterFreqency); + ASSERT(success); + + mQPCFrequency = counterFreqency.QuadPart; +} + +SwapChain11::~SwapChain11() +{ + release(); +} + +void SwapChain11::release() +{ + // TODO(jmadill): Should probably signal that the RenderTarget is dirty. + + SafeRelease(mSwapChain1); + SafeRelease(mSwapChain); + SafeRelease(mKeyedMutex); + mBackBufferTexture.reset(); + mBackBufferRTView.reset(); + mBackBufferSRView.reset(); + mOffscreenTexture.reset(); + mOffscreenRTView.reset(); + mOffscreenSRView.reset(); + mDepthStencilTexture.reset(); + mDepthStencilDSView.reset(); + mDepthStencilSRView.reset(); + mQuadVB.reset(); + mPassThroughSampler.reset(); + mPassThroughIL.reset(); + mPassThroughVS.reset(); + mPassThroughOrResolvePS.reset(); + mPassThroughRS.reset(); + + if (!mAppCreatedShareHandle) + { + mShareHandle = nullptr; + } +} + +void SwapChain11::releaseOffscreenColorBuffer() +{ + mOffscreenTexture.reset(); + mOffscreenRTView.reset(); + mOffscreenSRView.reset(); + mNeedsOffscreenTextureCopy = false; + mOffscreenTextureCopyForSRV.reset(); +} + +void SwapChain11::releaseOffscreenDepthBuffer() +{ + mDepthStencilTexture.reset(); + mDepthStencilDSView.reset(); + mDepthStencilSRView.reset(); +} + +EGLint SwapChain11::resetOffscreenBuffers(DisplayD3D *displayD3D, + int backbufferWidth, + int backbufferHeight) +{ + if (mNeedsOffscreenTexture) + { + EGLint result = resetOffscreenColorBuffer(displayD3D, backbufferWidth, backbufferHeight); + if (result != EGL_SUCCESS) + { + return result; + } + } + + EGLint result = resetOffscreenDepthBuffer(displayD3D, backbufferWidth, backbufferHeight); + if (result != EGL_SUCCESS) + { + return result; + } + + mWidth = backbufferWidth; + mHeight = backbufferHeight; + + return EGL_SUCCESS; +} + +EGLint SwapChain11::resetOffscreenColorBuffer(DisplayD3D *displayD3D, + int backbufferWidth, + int backbufferHeight) +{ + ASSERT(mNeedsOffscreenTexture); + + ANGLE_TRACE_EVENT0("gpu.angle", "SwapChain11::resetOffscreenTexture"); + ID3D11Device *device = mRenderer->getDevice(); + + ASSERT(device != nullptr); + + // D3D11 does not allow zero size textures + ASSERT(backbufferWidth >= 1); + ASSERT(backbufferHeight >= 1); + + // Preserve the render target content + TextureHelper11 previousOffscreenTexture(std::move(mOffscreenTexture)); + const int previousWidth = mWidth; + const int previousHeight = mHeight; + + releaseOffscreenColorBuffer(); + + const d3d11::Format &backbufferFormatInfo = + d3d11::Format::Get(mOffscreenRenderTargetFormat, mRenderer->getRenderer11DeviceCaps()); + D3D11_TEXTURE2D_DESC offscreenTextureDesc = {}; + + // If the app passed in a share handle or D3D texture, open the resource + // See EGL_ANGLE_d3d_share_handle_client_buffer and EGL_ANGLE_d3d_texture_client_buffer + if (mAppCreatedShareHandle || mD3DTexture != nullptr) + { + if (mAppCreatedShareHandle) + { + ID3D11Resource *tempResource11; + HRESULT result = device->OpenSharedResource(mShareHandle, __uuidof(ID3D11Resource), + (void **)&tempResource11); + if (FAILED(result) && mRenderer->getDevice1()) + { + result = mRenderer->getDevice1()->OpenSharedResource1( + mShareHandle, __uuidof(ID3D11Resource), (void **)&tempResource11); + } + + if (FAILED(result)) + { + ERR() << "Could not open shared handle. " << gl::FmtHR(result); + release(); + return EGL_BAD_SURFACE; + } + + mOffscreenTexture.set(d3d11::DynamicCastComObject<ID3D11Texture2D>(tempResource11), + backbufferFormatInfo); + SafeRelease(tempResource11); + } + else if (mD3DTexture != nullptr) + { + mOffscreenTexture.set(d3d11::DynamicCastComObject<ID3D11Texture2D>(mD3DTexture), + backbufferFormatInfo); + } + else + { + UNREACHABLE(); + } + ASSERT(mOffscreenTexture.valid()); + mOffscreenTexture.getDesc(&offscreenTextureDesc); + + // Fail if the offscreen texture is not renderable. + if ((offscreenTextureDesc.BindFlags & D3D11_BIND_RENDER_TARGET) == 0) + { + ERR() << "Could not use provided offscreen texture, texture not renderable."; + release(); + return EGL_BAD_SURFACE; + } + } + else + { + const bool useSharedResource = + !mNativeWindow->getNativeWindow() && mRenderer->getShareHandleSupport(); + + offscreenTextureDesc.Width = backbufferWidth; + offscreenTextureDesc.Height = backbufferHeight; + offscreenTextureDesc.Format = backbufferFormatInfo.texFormat; + offscreenTextureDesc.MipLevels = 1; + offscreenTextureDesc.ArraySize = 1; + offscreenTextureDesc.SampleDesc.Count = getD3DSamples(); + offscreenTextureDesc.SampleDesc.Quality = 0; + offscreenTextureDesc.Usage = D3D11_USAGE_DEFAULT; + offscreenTextureDesc.BindFlags = D3D11_BIND_RENDER_TARGET | D3D11_BIND_SHADER_RESOURCE; + offscreenTextureDesc.CPUAccessFlags = 0; + offscreenTextureDesc.MiscFlags = useSharedResource ? ANGLE_RESOURCE_SHARE_TYPE : 0; + + angle::Result result = mRenderer->allocateTexture(displayD3D, offscreenTextureDesc, + backbufferFormatInfo, &mOffscreenTexture); + if (result == angle::Result::Stop) + { + ERR() << "Could not create offscreen texture, " << displayD3D->getStoredErrorString(); + release(); + return EGL_BAD_ALLOC; + } + + mOffscreenTexture.setInternalName("OffscreenBackBufferTexture"); + + // EGL_ANGLE_surface_d3d_texture_2d_share_handle requires that we store a share handle for + // the client + if (useSharedResource) + { + IDXGIResource *offscreenTextureResource = nullptr; + HRESULT hr = mOffscreenTexture.get()->QueryInterface( + __uuidof(IDXGIResource), (void **)&offscreenTextureResource); + + // Fall back to no share handle on failure + if (FAILED(hr)) + { + ERR() << "Could not query offscreen texture resource, " << gl::FmtHR(hr); + } + else + { + hr = offscreenTextureResource->GetSharedHandle(&mShareHandle); + SafeRelease(offscreenTextureResource); + + if (FAILED(hr)) + { + mShareHandle = nullptr; + ERR() << "Could not get offscreen texture shared handle, " << gl::FmtHR(hr); + } + } + } + } + + // This may return null if the original texture was created without a keyed mutex. + mKeyedMutex = d3d11::DynamicCastComObject<IDXGIKeyedMutex>(mOffscreenTexture.get()); + + D3D11_RENDER_TARGET_VIEW_DESC offscreenRTVDesc; + offscreenRTVDesc.Format = backbufferFormatInfo.rtvFormat; + offscreenRTVDesc.ViewDimension = + (mEGLSamples <= 1) ? D3D11_RTV_DIMENSION_TEXTURE2D : D3D11_RTV_DIMENSION_TEXTURE2DMS; + offscreenRTVDesc.Texture2D.MipSlice = 0; + + angle::Result result = mRenderer->allocateResource(displayD3D, offscreenRTVDesc, + mOffscreenTexture.get(), &mOffscreenRTView); + if (result == angle::Result::Stop) + { + ERR() << "Could not create offscreen back buffer render target, " + << displayD3D->getStoredErrorString(); + release(); + return EGL_BAD_ALLOC; + } + mOffscreenRTView.setInternalName("OffscreenBackBufferRenderTarget"); + + D3D11_SHADER_RESOURCE_VIEW_DESC offscreenSRVDesc; + offscreenSRVDesc.Format = backbufferFormatInfo.srvFormat; + offscreenSRVDesc.ViewDimension = + (mEGLSamples <= 1) ? D3D11_SRV_DIMENSION_TEXTURE2D : D3D11_SRV_DIMENSION_TEXTURE2DMS; + offscreenSRVDesc.Texture2D.MostDetailedMip = 0; + offscreenSRVDesc.Texture2D.MipLevels = static_cast<UINT>(-1); + + if (offscreenTextureDesc.BindFlags & D3D11_BIND_SHADER_RESOURCE) + { + result = mRenderer->allocateResource(displayD3D, offscreenSRVDesc, mOffscreenTexture.get(), + &mOffscreenSRView); + if (result == angle::Result::Stop) + { + ERR() << "Could not create offscreen back buffer shader resource, " + << displayD3D->getStoredErrorString(); + release(); + return EGL_BAD_ALLOC; + } + mOffscreenSRView.setInternalName("OffscreenBackBufferShaderResource"); + } + else + { + // Special case for external textures that cannot support sampling. Since internally we + // assume our SwapChain is always readable, we make a copy texture that is compatible. + mNeedsOffscreenTextureCopy = true; + } + + if (previousOffscreenTexture.valid()) + { + D3D11_BOX sourceBox = {}; + sourceBox.left = 0; + sourceBox.right = std::min(previousWidth, backbufferWidth); + sourceBox.top = std::max(previousHeight - backbufferHeight, 0); + sourceBox.bottom = previousHeight; + sourceBox.front = 0; + sourceBox.back = 1; + + ID3D11DeviceContext *deviceContext = mRenderer->getDeviceContext(); + const int yoffset = std::max(backbufferHeight - previousHeight, 0); + deviceContext->CopySubresourceRegion(mOffscreenTexture.get(), 0, 0, yoffset, 0, + previousOffscreenTexture.get(), 0, &sourceBox); + + if (mSwapChain) + { + swapRect(displayD3D, 0, 0, backbufferWidth, backbufferHeight); + } + } + + return EGL_SUCCESS; +} + +EGLint SwapChain11::resetOffscreenDepthBuffer(DisplayD3D *displayD3D, + int backbufferWidth, + int backbufferHeight) +{ + releaseOffscreenDepthBuffer(); + + if (mDepthBufferFormat != GL_NONE) + { + const d3d11::Format &depthBufferFormatInfo = + d3d11::Format::Get(mDepthBufferFormat, mRenderer->getRenderer11DeviceCaps()); + + D3D11_TEXTURE2D_DESC depthStencilTextureDesc; + depthStencilTextureDesc.Width = backbufferWidth; + depthStencilTextureDesc.Height = backbufferHeight; + depthStencilTextureDesc.Format = depthBufferFormatInfo.texFormat; + depthStencilTextureDesc.MipLevels = 1; + depthStencilTextureDesc.ArraySize = 1; + depthStencilTextureDesc.SampleDesc.Count = getD3DSamples(); + depthStencilTextureDesc.Usage = D3D11_USAGE_DEFAULT; + depthStencilTextureDesc.BindFlags = D3D11_BIND_DEPTH_STENCIL; + + // If there is a multisampled offscreen color texture, the offscreen depth-stencil texture + // must also have the same quality value. + if (mOffscreenTexture.valid() && getD3DSamples() > 1) + { + D3D11_TEXTURE2D_DESC offscreenTextureDesc = {}; + mOffscreenTexture.getDesc(&offscreenTextureDesc); + depthStencilTextureDesc.SampleDesc.Quality = offscreenTextureDesc.SampleDesc.Quality; + } + else + { + depthStencilTextureDesc.SampleDesc.Quality = 0; + } + + // Only create an SRV if it is supported + bool depthStencilSRV = + depthBufferFormatInfo.srvFormat != DXGI_FORMAT_UNKNOWN && + (mRenderer->getRenderer11DeviceCaps().supportsMultisampledDepthStencilSRVs || + depthStencilTextureDesc.SampleDesc.Count <= 1); + if (depthStencilSRV) + { + depthStencilTextureDesc.BindFlags |= D3D11_BIND_SHADER_RESOURCE; + } + + depthStencilTextureDesc.CPUAccessFlags = 0; + depthStencilTextureDesc.MiscFlags = 0; + + angle::Result result = mRenderer->allocateTexture( + displayD3D, depthStencilTextureDesc, depthBufferFormatInfo, &mDepthStencilTexture); + if (result == angle::Result::Stop) + { + ERR() << "Could not create depthstencil surface for new swap chain, " + << displayD3D->getStoredErrorString(); + release(); + return EGL_BAD_ALLOC; + } + mDepthStencilTexture.setInternalName("OffscreenDepthStencilTexture"); + + D3D11_DEPTH_STENCIL_VIEW_DESC depthStencilDesc; + depthStencilDesc.Format = depthBufferFormatInfo.dsvFormat; + depthStencilDesc.ViewDimension = + (mEGLSamples <= 1) ? D3D11_DSV_DIMENSION_TEXTURE2D : D3D11_DSV_DIMENSION_TEXTURE2DMS; + depthStencilDesc.Flags = 0; + depthStencilDesc.Texture2D.MipSlice = 0; + + result = mRenderer->allocateResource(displayD3D, depthStencilDesc, + mDepthStencilTexture.get(), &mDepthStencilDSView); + ASSERT(result != angle::Result::Stop); + mDepthStencilDSView.setInternalName("OffscreenDSV"); + + if (depthStencilSRV) + { + D3D11_SHADER_RESOURCE_VIEW_DESC depthStencilSRVDesc; + depthStencilSRVDesc.Format = depthBufferFormatInfo.srvFormat; + depthStencilSRVDesc.ViewDimension = (mEGLSamples <= 1) + ? D3D11_SRV_DIMENSION_TEXTURE2D + : D3D11_SRV_DIMENSION_TEXTURE2DMS; + depthStencilSRVDesc.Texture2D.MostDetailedMip = 0; + depthStencilSRVDesc.Texture2D.MipLevels = static_cast<UINT>(-1); + + result = mRenderer->allocateResource(displayD3D, depthStencilSRVDesc, + mDepthStencilTexture.get(), &mDepthStencilSRView); + ASSERT(result != angle::Result::Stop); + mDepthStencilSRView.setInternalName("OffscreenDepthStencilSRV"); + } + } + + return EGL_SUCCESS; +} + +EGLint SwapChain11::resize(DisplayD3D *displayD3D, EGLint backbufferWidth, EGLint backbufferHeight) +{ + ANGLE_TRACE_EVENT0("gpu.angle", "SwapChain11::resize"); + ID3D11Device *device = mRenderer->getDevice(); + + if (device == nullptr) + { + return EGL_BAD_ACCESS; + } + + // EGL allows creating a surface with 0x0 dimension, however, DXGI does not like 0x0 swapchains + if (backbufferWidth < 1 || backbufferHeight < 1) + { + return EGL_SUCCESS; + } + + // Don't resize unnecessarily + if (mWidth == backbufferWidth && mHeight == backbufferHeight) + { + return EGL_SUCCESS; + } + + // Can only call resize if we have already created our swap buffer and resources + ASSERT(mSwapChain && mBackBufferTexture.valid() && mBackBufferRTView.valid() && + mBackBufferSRView.valid()); + + mBackBufferTexture.reset(); + mBackBufferRTView.reset(); + mBackBufferSRView.reset(); + + // Resize swap chain + DXGI_SWAP_CHAIN_DESC desc; + HRESULT hr = mSwapChain->GetDesc(&desc); + if (FAILED(hr)) + { + ERR() << "Error reading swap chain description, " << gl::FmtHR(hr); + release(); + return EGL_BAD_ALLOC; + } + + hr = mSwapChain->ResizeBuffers(desc.BufferCount, backbufferWidth, backbufferHeight, + getSwapChainNativeFormat(), 0); + + if (FAILED(hr)) + { + ERR() << "Error resizing swap chain buffers, " << gl::FmtHR(hr); + release(); + + if (d3d11::isDeviceLostError(hr)) + { + HRESULT reason = device->GetDeviceRemovedReason(); + ERR() << "Device lost in SwapChain11::resize " << gl::FmtHR(hr) + << ", reason: " << gl::FmtHR(reason); + return EGL_CONTEXT_LOST; + } + else + { + return EGL_BAD_ALLOC; + } + } + + ID3D11Texture2D *backbufferTexture = nullptr; + hr = mSwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), + reinterpret_cast<void **>(&backbufferTexture)); + ASSERT(SUCCEEDED(hr)); + if (SUCCEEDED(hr)) + { + const auto &format = + d3d11::Format::Get(mOffscreenRenderTargetFormat, mRenderer->getRenderer11DeviceCaps()); + mBackBufferTexture.set(backbufferTexture, format); + mBackBufferTexture.setInternalName("BackBufferTexture"); + + angle::Result result = mRenderer->allocateResourceNoDesc( + displayD3D, mBackBufferTexture.get(), &mBackBufferRTView); + ASSERT(result != angle::Result::Stop); + mBackBufferRTView.setInternalName("BackBufferRTV"); + + result = mRenderer->allocateResourceNoDesc(displayD3D, mBackBufferTexture.get(), + &mBackBufferSRView); + ASSERT(result != angle::Result::Stop); + mBackBufferSRView.setInternalName("BackBufferSRV"); + } + + mFirstSwap = true; + + return resetOffscreenBuffers(displayD3D, backbufferWidth, backbufferHeight); +} + +DXGI_FORMAT SwapChain11::getSwapChainNativeFormat() const +{ + // Return a render target format for offscreen rendering is supported by IDXGISwapChain. + // MSDN https://msdn.microsoft.com/en-us/library/windows/desktop/bb173064(v=vs.85).aspx + switch (mOffscreenRenderTargetFormat) + { + case GL_RGBA8: + case GL_RGBA4: + case GL_RGB5_A1: + case GL_RGB8: + case GL_RGB565: + return DXGI_FORMAT_R8G8B8A8_UNORM; + + case GL_BGRA8_EXT: + return DXGI_FORMAT_B8G8R8A8_UNORM; + + case GL_RGB10_A2: + return DXGI_FORMAT_R10G10B10A2_UNORM; + + case GL_RGBA16F: + return DXGI_FORMAT_R16G16B16A16_FLOAT; + + default: + UNREACHABLE(); + return DXGI_FORMAT_UNKNOWN; + } +} + +EGLint SwapChain11::reset(DisplayD3D *displayD3D, + EGLint backbufferWidth, + EGLint backbufferHeight, + EGLint swapInterval) +{ + mSwapInterval = static_cast<unsigned int>(swapInterval); + if (mSwapInterval > 4) + { + // IDXGISwapChain::Present documentation states that valid sync intervals are in the [0,4] + // range + return EGL_BAD_PARAMETER; + } + + // If the swap chain already exists, just resize + if (mSwapChain != nullptr) + { + return resize(displayD3D, backbufferWidth, backbufferHeight); + } + + ANGLE_TRACE_EVENT0("gpu.angle", "SwapChain11::reset"); + ID3D11Device *device = mRenderer->getDevice(); + + if (device == nullptr) + { + return EGL_BAD_ACCESS; + } + + // Release specific resources to free up memory for the new render target, while the + // old render target still exists for the purpose of preserving its contents. + SafeRelease(mSwapChain1); + SafeRelease(mSwapChain); + mBackBufferTexture.reset(); + mBackBufferRTView.reset(); + + // EGL allows creating a surface with 0x0 dimension, however, DXGI does not like 0x0 swapchains + if (backbufferWidth < 1 || backbufferHeight < 1) + { + releaseOffscreenColorBuffer(); + return EGL_SUCCESS; + } + + if (mNativeWindow->getNativeWindow()) + { + HRESULT hr = mNativeWindow->createSwapChain( + device, mRenderer->getDxgiFactory(), getSwapChainNativeFormat(), backbufferWidth, + backbufferHeight, mNeedsOffscreenTexture ? 1 : getD3DSamples(), &mSwapChain); + + if (FAILED(hr)) + { + ERR() << "Could not create additional swap chains or offscreen surfaces, " + << gl::FmtHR(hr); + release(); + + if (d3d11::isDeviceLostError(hr)) + { + HRESULT reason = device->GetDeviceRemovedReason(); + ERR() << "Device lost in SwapChain11::reset " << gl::FmtHR(hr) + << ", reason: " << gl::FmtHR(reason); + return EGL_CONTEXT_LOST; + } + else + { + return EGL_BAD_ALLOC; + } + } + + if (mRenderer->getRenderer11DeviceCaps().supportsDXGI1_2) + { + mSwapChain1 = d3d11::DynamicCastComObject<IDXGISwapChain1>(mSwapChain); + } + + ID3D11Texture2D *backbufferTex = nullptr; + hr = mSwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), + reinterpret_cast<LPVOID *>(&backbufferTex)); + ASSERT(SUCCEEDED(hr)); + const auto &format = + d3d11::Format::Get(mOffscreenRenderTargetFormat, mRenderer->getRenderer11DeviceCaps()); + mBackBufferTexture.set(backbufferTex, format); + mBackBufferTexture.setInternalName("BackBufferTexture"); + + angle::Result result = mRenderer->allocateResourceNoDesc( + displayD3D, mBackBufferTexture.get(), &mBackBufferRTView); + ASSERT(result != angle::Result::Stop); + mBackBufferRTView.setInternalName("BackBufferRTV"); + + result = mRenderer->allocateResourceNoDesc(displayD3D, mBackBufferTexture.get(), + &mBackBufferSRView); + ASSERT(result != angle::Result::Stop); + mBackBufferSRView.setInternalName("BackBufferSRV"); + } + + mFirstSwap = true; + + return resetOffscreenBuffers(displayD3D, backbufferWidth, backbufferHeight); +} + +angle::Result SwapChain11::initPassThroughResources(DisplayD3D *displayD3D) +{ + if (mPassThroughResourcesInit) + { + return angle::Result::Continue; + } + + ANGLE_TRACE_EVENT0("gpu.angle", "SwapChain11::initPassThroughResources"); + ID3D11Device *device = mRenderer->getDevice(); + + ASSERT(device != nullptr); + + // Make sure our resources are all not allocated, when we create + ASSERT(!mQuadVB.valid() && !mPassThroughSampler.valid()); + ASSERT(!mPassThroughIL.valid() && !mPassThroughVS.valid() && !mPassThroughOrResolvePS.valid()); + + D3D11_BUFFER_DESC vbDesc; + vbDesc.ByteWidth = sizeof(d3d11::PositionTexCoordVertex) * 4; + vbDesc.Usage = D3D11_USAGE_DYNAMIC; + vbDesc.BindFlags = D3D11_BIND_VERTEX_BUFFER; + vbDesc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE; + vbDesc.MiscFlags = 0; + vbDesc.StructureByteStride = 0; + + ANGLE_TRY(mRenderer->allocateResource(displayD3D, vbDesc, &mQuadVB)); + mQuadVB.setInternalName("SwapChainQuadVB"); + + D3D11_SAMPLER_DESC samplerDesc; + samplerDesc.Filter = D3D11_FILTER_MIN_MAG_MIP_POINT; + samplerDesc.AddressU = D3D11_TEXTURE_ADDRESS_CLAMP; + samplerDesc.AddressV = D3D11_TEXTURE_ADDRESS_CLAMP; + samplerDesc.AddressW = D3D11_TEXTURE_ADDRESS_CLAMP; + samplerDesc.MipLODBias = 0.0f; + samplerDesc.MaxAnisotropy = 0; + samplerDesc.ComparisonFunc = D3D11_COMPARISON_NEVER; + samplerDesc.BorderColor[0] = 0.0f; + samplerDesc.BorderColor[1] = 0.0f; + samplerDesc.BorderColor[2] = 0.0f; + samplerDesc.BorderColor[3] = 0.0f; + samplerDesc.MinLOD = 0; + samplerDesc.MaxLOD = D3D11_FLOAT32_MAX; + + ANGLE_TRY(mRenderer->allocateResource(displayD3D, samplerDesc, &mPassThroughSampler)); + mPassThroughSampler.setInternalName("SwapChainPassThroughSampler"); + + D3D11_INPUT_ELEMENT_DESC quadLayout[] = { + {"POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0}, + {"TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 8, D3D11_INPUT_PER_VERTEX_DATA, 0}, + }; + + InputElementArray quadElements(quadLayout); + ShaderData vertexShaderData(g_VS_Passthrough2D); + + ANGLE_TRY( + mRenderer->allocateResource(displayD3D, quadElements, &vertexShaderData, &mPassThroughIL)); + mPassThroughIL.setInternalName("SwapChainPassThroughIL"); + + ANGLE_TRY(mRenderer->allocateResource(displayD3D, vertexShaderData, &mPassThroughVS)); + mPassThroughVS.setInternalName("SwapChainPassThroughVS"); + + if (mEGLSamples <= 1) + { + ShaderData pixelShaderData(g_PS_PassthroughRGBA2D); + ANGLE_TRY( + mRenderer->allocateResource(displayD3D, pixelShaderData, &mPassThroughOrResolvePS)); + } + else + { + if (mNativeWindow->getNativeWindow() && mNeedsOffscreenTexture) + { + ShaderData pixelShaderData(g_PS_ResolveColor2D); + ANGLE_TRY( + mRenderer->allocateResource(displayD3D, pixelShaderData, &mPassThroughOrResolvePS)); + } + else + { + ShaderData pixelShaderData(g_PS_PassthroughRGBA2DMS); + ANGLE_TRY( + mRenderer->allocateResource(displayD3D, pixelShaderData, &mPassThroughOrResolvePS)); + } + } + + mPassThroughOrResolvePS.setInternalName("SwapChainPassThroughPS"); + + // Use the default rasterizer state but without culling + D3D11_RASTERIZER_DESC rasterizerDesc; + rasterizerDesc.FillMode = D3D11_FILL_SOLID; + rasterizerDesc.CullMode = D3D11_CULL_NONE; + rasterizerDesc.FrontCounterClockwise = FALSE; + rasterizerDesc.DepthBias = 0; + rasterizerDesc.SlopeScaledDepthBias = 0.0f; + rasterizerDesc.DepthBiasClamp = 0.0f; + rasterizerDesc.DepthClipEnable = TRUE; + rasterizerDesc.ScissorEnable = FALSE; + rasterizerDesc.MultisampleEnable = FALSE; + rasterizerDesc.AntialiasedLineEnable = FALSE; + + ANGLE_TRY(mRenderer->allocateResource(displayD3D, rasterizerDesc, &mPassThroughRS)); + mPassThroughRS.setInternalName("SwapChainPassThroughRasterizerState"); + + mPassThroughResourcesInit = true; + return angle::Result::Continue; +} + +// parameters should be validated/clamped by caller +EGLint SwapChain11::swapRect(DisplayD3D *displayD3D, + EGLint x, + EGLint y, + EGLint width, + EGLint height) +{ + if (mNeedsOffscreenTexture) + { + EGLint result = copyOffscreenToBackbuffer(displayD3D, x, y, width, height); + if (result != EGL_SUCCESS) + { + return result; + } + } + + EGLint result = present(displayD3D, x, y, width, height); + if (result != EGL_SUCCESS) + { + return result; + } + + mRenderer->onSwap(); + + return EGL_SUCCESS; +} + +EGLint SwapChain11::copyOffscreenToBackbuffer(DisplayD3D *displayD3D, + EGLint x, + EGLint y, + EGLint width, + EGLint height) +{ + if (!mSwapChain) + { + return EGL_SUCCESS; + } + + if (initPassThroughResources(displayD3D) == angle::Result::Stop) + { + return EGL_BAD_ALLOC; + } + + ID3D11DeviceContext *deviceContext = mRenderer->getDeviceContext(); + + // Set vertices + D3D11_MAPPED_SUBRESOURCE mappedResource; + HRESULT result = + deviceContext->Map(mQuadVB.get(), 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource); + if (FAILED(result)) + { + return EGL_BAD_ACCESS; + } + + d3d11::PositionTexCoordVertex *vertices = + static_cast<d3d11::PositionTexCoordVertex *>(mappedResource.pData); + + // Create a quad in homogeneous coordinates + float x1 = (x / float(mWidth)) * 2.0f - 1.0f; + float y1 = (y / float(mHeight)) * 2.0f - 1.0f; + float x2 = ((x + width) / float(mWidth)) * 2.0f - 1.0f; + float y2 = ((y + height) / float(mHeight)) * 2.0f - 1.0f; + + float u1 = x / float(mWidth); + float v1 = y / float(mHeight); + float u2 = (x + width) / float(mWidth); + float v2 = (y + height) / float(mHeight); + + // Invert the quad vertices depending on the surface orientation. + if ((mOrientation & EGL_SURFACE_ORIENTATION_INVERT_X_ANGLE) != 0) + { + std::swap(x1, x2); + } + if ((mOrientation & EGL_SURFACE_ORIENTATION_INVERT_Y_ANGLE) != 0) + { + std::swap(y1, y2); + } + + d3d11::SetPositionTexCoordVertex(&vertices[0], x1, y1, u1, v1); + d3d11::SetPositionTexCoordVertex(&vertices[1], x1, y2, u1, v2); + d3d11::SetPositionTexCoordVertex(&vertices[2], x2, y1, u2, v1); + d3d11::SetPositionTexCoordVertex(&vertices[3], x2, y2, u2, v2); + + deviceContext->Unmap(mQuadVB.get(), 0); + + StateManager11 *stateManager = mRenderer->getStateManager(); + + constexpr UINT stride = sizeof(d3d11::PositionTexCoordVertex); + stateManager->setSingleVertexBuffer(&mQuadVB, stride, 0); + + // Apply state + stateManager->setDepthStencilState(nullptr, 0xFFFFFFFF); + stateManager->setSimpleBlendState(nullptr); + stateManager->setRasterizerState(&mPassThroughRS); + + // Apply shaders + stateManager->setInputLayout(&mPassThroughIL); + stateManager->setPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP); + stateManager->setDrawShaders(&mPassThroughVS, nullptr, &mPassThroughOrResolvePS); + + // Apply render targets. Use the proxy context in display. + stateManager->setRenderTarget(mBackBufferRTView.get(), nullptr); + + // Set the viewport + stateManager->setSimpleViewport(mWidth, mHeight); + + // Apply textures + stateManager->setSimplePixelTextureAndSampler(mOffscreenSRView, mPassThroughSampler); + + // Draw + deviceContext->Draw(4, 0); + + return EGL_SUCCESS; +} + +EGLint SwapChain11::present(DisplayD3D *displayD3D, EGLint x, EGLint y, EGLint width, EGLint height) +{ + if (!mSwapChain) + { + return EGL_SUCCESS; + } + + UINT swapInterval = mSwapInterval; +#if ANGLE_VSYNC == ANGLE_DISABLED + swapInterval = 0; +#endif + + HRESULT result = S_OK; + + // Use IDXGISwapChain1::Present1 with a dirty rect if DXGI 1.2 is available. + // Dirty rect present is not supported with a multisampled swapchain. + if (mSwapChain1 != nullptr && mEGLSamples <= 1) + { + if (mFirstSwap) + { + // Can't swap with a dirty rect if this swap chain has never swapped before + DXGI_PRESENT_PARAMETERS params = {0, nullptr, nullptr, nullptr}; + result = mSwapChain1->Present1(swapInterval, 0, ¶ms); + } + else + { + RECT rect = {static_cast<LONG>(x), static_cast<LONG>(mHeight - y - height), + static_cast<LONG>(x + width), static_cast<LONG>(mHeight - y)}; + DXGI_PRESENT_PARAMETERS params = {1, &rect, nullptr, nullptr}; + result = mSwapChain1->Present1(swapInterval, 0, ¶ms); + } + } + else + { + result = mSwapChain->Present(swapInterval, 0); + } + + mFirstSwap = false; + + // Some swapping mechanisms such as DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL unbind the current render + // target. Mark it dirty. Use the proxy context in display since there is none available. + mRenderer->getStateManager()->invalidateRenderTarget(); + + if (result == DXGI_ERROR_DEVICE_REMOVED) + { + ERR() << "Present failed: the D3D11 device was removed, " + << gl::FmtHR(mRenderer->getDevice()->GetDeviceRemovedReason()); + return EGL_CONTEXT_LOST; + } + else if (result == DXGI_ERROR_DEVICE_RESET) + { + ERR() << "Present failed: the D3D11 device was reset from a bad command."; + return EGL_CONTEXT_LOST; + } + else if (FAILED(result)) + { + ERR() << "Present failed with " << gl::FmtHR(result); + } + + mNativeWindow->commitChange(); + + return EGL_SUCCESS; +} + +const TextureHelper11 &SwapChain11::getOffscreenTexture() +{ + return mNeedsOffscreenTexture ? mOffscreenTexture : mBackBufferTexture; +} + +const d3d11::RenderTargetView &SwapChain11::getRenderTarget() +{ + return mNeedsOffscreenTexture ? mOffscreenRTView : mBackBufferRTView; +} + +angle::Result SwapChain11::getRenderTargetShaderResource(d3d::Context *context, + const d3d11::SharedSRV **outSRV) +{ + *outSRV = nullptr; + + if (!mNeedsOffscreenTexture) + { + ASSERT(mBackBufferSRView.valid()); + *outSRV = &mBackBufferSRView; + return angle::Result::Continue; + } + + if (!mNeedsOffscreenTextureCopy) + { + ASSERT(mOffscreenSRView.valid()); + *outSRV = &mOffscreenSRView; + return angle::Result::Continue; + } + + if (!mOffscreenTextureCopyForSRV.valid()) + { + const d3d11::Format &backbufferFormatInfo = + d3d11::Format::Get(mOffscreenRenderTargetFormat, mRenderer->getRenderer11DeviceCaps()); + + D3D11_TEXTURE2D_DESC offscreenCopyDesc; + mOffscreenTexture.getDesc(&offscreenCopyDesc); + + offscreenCopyDesc.BindFlags = D3D11_BIND_SHADER_RESOURCE; + offscreenCopyDesc.MiscFlags = 0; + offscreenCopyDesc.CPUAccessFlags = 0; + TextureHelper11 offscreenTextureCopyForSRV; + ANGLE_TRY(mRenderer->allocateTexture(context, offscreenCopyDesc, backbufferFormatInfo, + &offscreenTextureCopyForSRV)); + offscreenTextureCopyForSRV.setInternalName("OffscreenBackBufferCopyForSRV"); + + D3D11_SHADER_RESOURCE_VIEW_DESC offscreenSRVDesc; + offscreenSRVDesc.Format = backbufferFormatInfo.srvFormat; + offscreenSRVDesc.ViewDimension = + (mEGLSamples <= 1) ? D3D11_SRV_DIMENSION_TEXTURE2D : D3D11_SRV_DIMENSION_TEXTURE2DMS; + offscreenSRVDesc.Texture2D.MostDetailedMip = 0; + offscreenSRVDesc.Texture2D.MipLevels = static_cast<UINT>(-1); + + d3d11::SharedSRV offscreenSRView; + ANGLE_TRY(mRenderer->allocateResource(context, offscreenSRVDesc, + offscreenTextureCopyForSRV.get(), &offscreenSRView)); + offscreenSRView.setInternalName("OffscreenBackBufferSRV"); + + // Commit created objects in one step so we don't end up with half baked member variables. + mOffscreenTextureCopyForSRV = std::move(offscreenTextureCopyForSRV); + mOffscreenSRView = std::move(offscreenSRView); + } + + // Need to copy the offscreen texture into the shader-readable copy, since it's external and + // we don't know if the copy is up-to-date. This works around the problem we have when the app + // passes in a texture that isn't shader-readable. + mRenderer->getDeviceContext()->CopyResource(mOffscreenTextureCopyForSRV.get(), + mOffscreenTexture.get()); + *outSRV = &mOffscreenSRView; + return angle::Result::Continue; +} + +const d3d11::DepthStencilView &SwapChain11::getDepthStencil() +{ + return mDepthStencilDSView; +} + +const d3d11::SharedSRV &SwapChain11::getDepthStencilShaderResource() +{ + return mDepthStencilSRView; +} + +const TextureHelper11 &SwapChain11::getDepthStencilTexture() +{ + return mDepthStencilTexture; +} + +void *SwapChain11::getKeyedMutex() +{ + return mKeyedMutex; +} + +void SwapChain11::recreate() +{ + // possibly should use this method instead of reset +} + +RenderTargetD3D *SwapChain11::getColorRenderTarget() +{ + return &mColorRenderTarget; +} + +RenderTargetD3D *SwapChain11::getDepthStencilRenderTarget() +{ + return &mDepthStencilRenderTarget; +} + +egl::Error SwapChain11::getSyncValues(EGLuint64KHR *ust, EGLuint64KHR *msc, EGLuint64KHR *sbc) +{ + if (!mSwapChain) + { + return egl::EglNotInitialized() << "Swap chain uninitialized"; + } + + DXGI_FRAME_STATISTICS stats = {}; + HRESULT result = mSwapChain->GetFrameStatistics(&stats); + + if (FAILED(result)) + { + return egl::EglBadAlloc() << "Failed to get frame statistics, " << gl::FmtHR(result); + } + + // Conversion from DXGI_FRAME_STATISTICS to the output values: + // stats.SyncRefreshCount -> msc + // stats.PresentCount -> sbc + // stats.SyncQPCTime -> ust with conversion to microseconds via QueryPerformanceFrequency + *msc = stats.SyncRefreshCount; + *sbc = stats.PresentCount; + + LONGLONG syncQPCValue = stats.SyncQPCTime.QuadPart; + // If the QPC Value is below the overflow threshold, we proceed with + // simple multiply and divide. + if (syncQPCValue < kQPCOverflowThreshold) + { + *ust = syncQPCValue * kMicrosecondsPerSecond / mQPCFrequency; + } + else + { + // Otherwise, calculate microseconds in a round about manner to avoid + // overflow and precision issues. + int64_t wholeSeconds = syncQPCValue / mQPCFrequency; + int64_t leftoverTicks = syncQPCValue - (wholeSeconds * mQPCFrequency); + *ust = wholeSeconds * kMicrosecondsPerSecond + + leftoverTicks * kMicrosecondsPerSecond / mQPCFrequency; + } + + return egl::NoError(); +} + +UINT SwapChain11::getD3DSamples() const +{ + return (mEGLSamples == 0) ? 1 : mEGLSamples; +} + +} // namespace rx |