diff options
Diffstat (limited to 'src/plugins/platforms/direct2d/qwindowsdirect2dwindow.cpp')
| -rw-r--r-- | src/plugins/platforms/direct2d/qwindowsdirect2dwindow.cpp | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/src/plugins/platforms/direct2d/qwindowsdirect2dwindow.cpp b/src/plugins/platforms/direct2d/qwindowsdirect2dwindow.cpp new file mode 100644 index 0000000000..bf860f982e --- /dev/null +++ b/src/plugins/platforms/direct2d/qwindowsdirect2dwindow.cpp @@ -0,0 +1,177 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qwindowsdirect2dcontext.h" +#include "qwindowsdirect2dwindow.h" +#include "qwindowsdirect2ddevicecontext.h" +#include "qwindowsdirect2dhelpers.h" + +#include <d3d11.h> +#include <d2d1_1.h> +using Microsoft::WRL::ComPtr; + +QT_BEGIN_NAMESPACE + +QWindowsDirect2DWindow::QWindowsDirect2DWindow(QWindow *window, const QWindowsWindowData &data) + : QWindowsWindow(window, data) + , m_needsFullFlush(true) +{ + DXGI_SWAP_CHAIN_DESC1 desc = {}; + + desc.Format = DXGI_FORMAT_B8G8R8A8_UNORM; + desc.SampleDesc.Count = 1; + desc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT; + desc.BufferCount = 1; + desc.SwapEffect = DXGI_SWAP_EFFECT_SEQUENTIAL; + + HRESULT hr = QWindowsDirect2DContext::instance()->dxgiFactory()->CreateSwapChainForHwnd( + QWindowsDirect2DContext::instance()->d3dDevice(), // [in] IUnknown *pDevice + handle(), // [in] HWND hWnd + &desc, // [in] const DXGI_SWAP_CHAIN_DESC1 *pDesc + NULL, // [in] const DXGI_SWAP_CHAIN_FULLSCREEN_DESC *pFullscreenDesc + NULL, // [in] IDXGIOutput *pRestrictToOutput + m_swapChain.ReleaseAndGetAddressOf()); // [out] IDXGISwapChain1 **ppSwapChain + + if (FAILED(hr)) + qWarning("%s: Could not create swap chain: %#x", __FUNCTION__, hr); + + hr = QWindowsDirect2DContext::instance()->d2dDevice()->CreateDeviceContext( + D2D1_DEVICE_CONTEXT_OPTIONS_NONE, + m_deviceContext.GetAddressOf()); + if (FAILED(hr)) + qWarning("%s: Couldn't create Direct2D Device context: %#x", __FUNCTION__, hr); +} + +QWindowsDirect2DWindow::~QWindowsDirect2DWindow() +{ +} + +void QWindowsDirect2DWindow::flush(QWindowsDirect2DBitmap *bitmap, const QRegion ®ion, const QPoint &offset) +{ + DXGI_SWAP_CHAIN_DESC1 desc; + HRESULT hr = m_swapChain->GetDesc1(&desc); + QRect geom = geometry(); + + if (FAILED(hr) || (desc.Width != geom.width()) || (desc.Height != geom.height())) { + resizeSwapChain(geom.size()); + m_swapChain->GetDesc1(&desc); + } + + setupBitmap(); + if (!m_bitmap) + return; + + m_bitmap->deviceContext()->begin(); + + ID2D1DeviceContext *dc = m_bitmap->deviceContext()->get(); + if (!m_needsFullFlush) { + QRegion clipped = region; + clipped &= QRect(0, 0, desc.Width, desc.Height); + + foreach (const QRect &rect, clipped.rects()) { + QRectF rectF(rect); + dc->DrawBitmap(bitmap->bitmap(), + to_d2d_rect_f(rectF), + 1.0, + D2D1_INTERPOLATION_MODE_LINEAR, + to_d2d_rect_f(rectF.translated(offset.x(), offset.y()))); + } + } else { + QRectF rectF(0, 0, desc.Width, desc.Height); + dc->DrawBitmap(bitmap->bitmap(), + to_d2d_rect_f(rectF), + 1.0, + D2D1_INTERPOLATION_MODE_LINEAR, + to_d2d_rect_f(rectF.translated(offset.x(), offset.y()))); + m_needsFullFlush = false; + } + + m_bitmap->deviceContext()->end(); + m_swapChain->Present(1, 0); +} + +void QWindowsDirect2DWindow::resizeSwapChain(const QSize &size) +{ + if (!m_swapChain) + return; + + m_bitmap.reset(); + m_deviceContext->SetTarget(Q_NULLPTR); + + HRESULT hr = m_swapChain->ResizeBuffers(0, + size.width(), size.height(), + DXGI_FORMAT_UNKNOWN, + 0); + if (FAILED(hr)) + qWarning("%s: Could not resize swap chain: %#x", __FUNCTION__, hr); + + m_needsFullFlush = true; +} + +void QWindowsDirect2DWindow::setupBitmap() +{ + if (m_bitmap) + return; + + if (!m_deviceContext) + return; + + if (!m_swapChain) + return; + + ComPtr<IDXGISurface1> backBufferSurface; + HRESULT hr = m_swapChain->GetBuffer(0, IID_PPV_ARGS(&backBufferSurface)); + if (FAILED(hr)) { + qWarning("%s: Could not query backbuffer for DXGI Surface: %#x", __FUNCTION__, hr); + return; + } + + ComPtr<ID2D1Bitmap1> backBufferBitmap; + hr = m_deviceContext->CreateBitmapFromDxgiSurface(backBufferSurface.Get(), NULL, backBufferBitmap.GetAddressOf()); + if (FAILED(hr)) { + qWarning("%s: Could not create Direct2D Bitmap from DXGI Surface: %#x", __FUNCTION__, hr); + return; + } + + m_bitmap.reset(new QWindowsDirect2DBitmap(backBufferBitmap.Get(), m_deviceContext.Get())); +} + +QT_END_NAMESPACE |