path: root/src/plugins/platforms/direct2d/qwindowsdirect2dbitmap.cpp

// Copyright (C) 2016 The Qt Company Ltd.// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only#include"qwindowsdirect2dbitmap.h"#include"qwindowsdirect2dcontext.h"#include"qwindowsdirect2dhelpers.h"#include"qwindowsdirect2ddevicecontext.h"#include <QtCore/private/qcomptr_p.h>#include <QtGui/qimage.h>#include <QtGui/qcolor.h> QT_BEGIN_NAMESPACE class QWindowsDirect2DBitmapPrivate {public:QWindowsDirect2DBitmapPrivate(ID2D1DeviceContext *dc =nullptr, ID2D1Bitmap1 *bm =nullptr):deviceContext(newQWindowsDirect2DDeviceContext(dc)),bitmap(bm){ deviceContext->get()->SetTarget(bm);} D2D1_BITMAP_PROPERTIES1 bitmapProperties()const{ QT_WARNING_PUSH QT_WARNING_DISABLE_DEPRECATED // see QTBUG-94043 FLOAT dpiX, dpiY;QWindowsDirect2DContext::instance()->d2dFactory()->GetDesktopDpi(&dpiX, &dpiY); QT_WARNING_POP returnD2D1::BitmapProperties1( D2D1_BITMAP_OPTIONS_TARGET,D2D1::PixelFormat(DXGI_FORMAT_B8G8R8A8_UNORM, D2D1_ALPHA_MODE_PREMULTIPLIED), dpiX, dpiY);}boolresize(int width,int height,const void*data =nullptr,int pitch =0){ deviceContext->get()->SetTarget(nullptr); bitmap.Reset(); D2D1_SIZE_U size = {UINT32(width),UINT32(height)}; HRESULT hr = deviceContext->get()->CreateBitmap(size, data,UINT32(pitch),bitmapProperties(), bitmap.ReleaseAndGetAddressOf());if(SUCCEEDED(hr)) deviceContext->get()->SetTarget(bitmap.Get());elseqWarning("%s: Could not create bitmap: %#lx", __FUNCTION__, hr);returnSUCCEEDED(hr);} QImage toImage(const QRect &rect){if(!bitmap)returnQImage(); ComPtr<ID2D1Bitmap1> mappingCopy; HRESULT hr = S_OK; D2D1_SIZE_U size = bitmap->GetPixelSize(); D2D1_BITMAP_PROPERTIES1 properties =bitmapProperties(); properties.bitmapOptions = D2D1_BITMAP_OPTIONS_CANNOT_DRAW | D2D1_BITMAP_OPTIONS_CPU_READ; hr = deviceContext->get()->CreateBitmap(size,nullptr,0, properties, &mappingCopy);if(FAILED(hr)) {qWarning("%s: Could not create bitmap: %#lx", __FUNCTION__, hr);returnQImage();} hr = mappingCopy->CopyFromBitmap(nullptr, bitmap.Get(),nullptr);if(FAILED(hr)) {qWarning("%s: Could not copy from bitmap: %#lx", __FUNCTION__, hr);returnQImage();} D2D1_MAPPED_RECT mappedRect; hr = mappingCopy->Map(D2D1_MAP_OPTIONS_READ, &mappedRect);if(FAILED(hr)) {qWarning("%s: Could not map: %#lx", __FUNCTION__, hr);returnQImage();}returnQImage(static_cast<const uchar *>(mappedRect.bits),int(size.width),int(size.height),int(mappedRect.pitch),QImage::Format_ARGB32_Premultiplied).copy(rect);} QScopedPointer<QWindowsDirect2DDeviceContext> deviceContext; ComPtr<ID2D1Bitmap1> bitmap;};QWindowsDirect2DBitmap::QWindowsDirect2DBitmap():d_ptr(new QWindowsDirect2DBitmapPrivate){}QWindowsDirect2DBitmap::QWindowsDirect2DBitmap(ID2D1Bitmap1 *bitmap, ID2D1DeviceContext *dc):d_ptr(newQWindowsDirect2DBitmapPrivate(dc, bitmap)){}QWindowsDirect2DBitmap::~QWindowsDirect2DBitmap(){}boolQWindowsDirect2DBitmap::resize(int width,int height){Q_D(QWindowsDirect2DBitmap);return d->resize(width, height);}boolQWindowsDirect2DBitmap::fromImage(const QImage &image,Qt::ImageConversionFlags flags){Q_D(QWindowsDirect2DBitmap); QImage converted = image.convertToFormat(QImage::Format_ARGB32_Premultiplied, flags);return d->resize(converted.width(), converted.height(), converted.constBits(), converted.bytesPerLine());} ID2D1Bitmap1*QWindowsDirect2DBitmap::bitmap()const{Q_D(const QWindowsDirect2DBitmap);return d->bitmap.Get();} QWindowsDirect2DDeviceContext *QWindowsDirect2DBitmap::deviceContext()const{Q_D(const QWindowsDirect2DBitmap);return d->deviceContext.data();}voidQWindowsDirect2DBitmap::fill(const QColor &color){Q_D(QWindowsDirect2DBitmap); d->deviceContext->begin(); d->deviceContext->get()->Clear(to_d2d_color_f(color)); d->deviceContext->end();} QImage QWindowsDirect2DBitmap::toImage(const QRect &rect){Q_D(QWindowsDirect2DBitmap);return d->toImage(rect);} QSize QWindowsDirect2DBitmap::size()const{Q_D(const QWindowsDirect2DBitmap); D2D1_SIZE_U size = d->bitmap->GetPixelSize();returnQSize(int(size.width),int(size.height));} QT_END_NAMESPACE