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Diffstat (limited to 'src/core/backing_store_qt.cpp')
-rw-r--r-- | src/core/backing_store_qt.cpp | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/src/core/backing_store_qt.cpp b/src/core/backing_store_qt.cpp deleted file mode 100644 index 613dfdbbc..000000000 --- a/src/core/backing_store_qt.cpp +++ /dev/null @@ -1,187 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the QtWebEngine module 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 "backing_store_qt.h" - -#include "type_conversion.h" - -#include "content/public/browser/render_process_host.h" -#include "ui/gfx/rect.h" -#include "ui/gfx/rect_conversions.h" -#include "ui/gfx/vector2d_conversions.h" -#include "skia/ext/platform_canvas.h" - -#include <QPainter> -#include <QScreen> -#include <QSizeF> -#include <QWindow> - -QT_BEGIN_NAMESPACE -// from qbackingstore.cpp -extern void qt_scrollRectInImage(QImage &img, const QRect &rect, const QPoint &offset); -QT_END_NAMESPACE - -BackingStoreQt::BackingStoreQt(content::RenderWidgetHost *host, const gfx::Size &size, QWindow* parent) - : content::BackingStore(host, size) - , m_deviceScaleFactor((parent && parent->screen()) ? parent->screen()->devicePixelRatio() : 1) - , m_pixelBuffer(size.width() * m_deviceScaleFactor, size.height() * m_deviceScaleFactor, QImage::Format_ARGB32_Premultiplied) -{ -} - -BackingStoreQt::~BackingStoreQt() -{ -} - -void BackingStoreQt::paintToTarget(QPainter* painter, const QRectF& rect) -{ - if (m_pixelBuffer.isNull()) - return; - - qreal x = rect.x() * m_deviceScaleFactor; - qreal y = rect.y() * m_deviceScaleFactor; - qreal w = rect.width() * m_deviceScaleFactor; - qreal h = rect.height() * m_deviceScaleFactor; - - QRectF source(x, y, w, h); - painter->drawImage(rect, m_pixelBuffer, source); -} - -void BackingStoreQt::PaintToBackingStore(content::RenderProcessHost *process, - TransportDIB::Id bitmap, - const gfx::Rect &bitmap_rect, - const std::vector<gfx::Rect> ©_rects, - float scale_factor, - const base::Closure &completion_callback, - bool *scheduled_completion_callback) -{ - if (bitmap_rect.IsEmpty()) - return; - - *scheduled_completion_callback = false; - TransportDIB* dib = process->GetTransportDIB(bitmap); - if (!dib) - return; - - gfx::Rect pixel_bitmap_rect = gfx::ToEnclosingRect(gfx::ScaleRect(bitmap_rect, scale_factor)); - - uint8_t* bitmapData = static_cast<uint8_t*>(dib->memory()); - const QImage img(bitmapData, pixel_bitmap_rect.width(), pixel_bitmap_rect.height(), QImage::Format_ARGB32); - - QPainter painter(&m_pixelBuffer); - for (size_t i = 0; i < copy_rects.size(); ++i) { - gfx::Rect copy_rect = gfx::ToEnclosingRect(gfx::ScaleRect(copy_rects[i], scale_factor)); - - QRect source = QRect( copy_rect.x() - pixel_bitmap_rect.x() - , copy_rect.y() - pixel_bitmap_rect.y() - , copy_rect.width() - , copy_rect.height()); - - gfx::Rect copy_rect_dst = gfx::ToEnclosingRect(gfx::ScaleRect(copy_rects[i], m_deviceScaleFactor)); - - QRect destination = QRect( copy_rect_dst.x() - , copy_rect_dst.y() - , copy_rect_dst.width() - , copy_rect_dst.height()); - -#if defined(OS_ANDROID) - // The received image format is BGRA with Android so we have to swizzle the image data. - painter.drawImage(destination, img.rgbSwapped(), source); -#else - painter.drawImage(destination, img, source); -#endif - } -} - -void BackingStoreQt::ScrollBackingStore(const gfx::Vector2d &delta, const gfx::Rect &clip_rect, const gfx::Size &view_size) -{ - DCHECK(delta.x() == 0 || delta.y() == 0); - - gfx::Rect pixel_rect = gfx::ToEnclosingRect(gfx::ScaleRect(clip_rect, m_deviceScaleFactor)); - gfx::Vector2d pixel_delta = gfx::ToFlooredVector2d(gfx::ScaleVector2d(delta, m_deviceScaleFactor)); - - // Logic borrowed from QPixmap::scroll and QRasterPlatformPixmap::scroll. - QRect dest = toQt(pixel_rect) & m_pixelBuffer.rect(); - QRect src = dest.translated(-pixel_delta.x(), -pixel_delta.y()) & dest; - qt_scrollRectInImage(m_pixelBuffer, src, QPoint(pixel_delta.x(), pixel_delta.y())); -} - -bool BackingStoreQt::CopyFromBackingStore(const gfx::Rect &rect, skia::PlatformBitmap *output) -{ - const int width = std::min(m_pixelBuffer.width(), rect.width()); - const int height = std::min(m_pixelBuffer.height(), rect.height()); - - if (!output->Allocate(width, height, true)) - return false; - - // This code assumes a visual mode where a pixel is - // represented using a 32-bit unsigned int, with a byte per component. - const SkBitmap& bitmap = output->GetBitmap(); - if (bitmap.rowBytes() != 4) - return false; - - SkAutoLockPixels alp(bitmap); - - QImage cpy = m_pixelBuffer.copy(rect.x(), rect.y(), rect.width(), rect.height()); - - // Convert the format and remove transparency. - if (cpy.format() != QImage::Format_RGB32) - cpy = cpy.convertToFormat(QImage::Format_RGB32); - - const uint8_t* src = cpy.bits(); - uint8_t* dst = reinterpret_cast<uint8_t*>(bitmap.getAddr32(0,0)); - - int bytesPerLine = cpy.bytesPerLine(); - int bytesPerPixel = bytesPerLine / cpy.width(); - int copyLineLength = width * bytesPerPixel; - int lineOffset = rect.y() * cpy.width(); - int rowOffset = rect.x() * bytesPerPixel; - - const uint8_t* copyLineBegin = src + rowOffset + lineOffset; - - for (int lineNumber = 0; lineNumber < height; ++lineNumber) { - memcpy(dst, copyLineBegin, copyLineLength); - dst += copyLineLength; - copyLineBegin += cpy.width(); - } - - return true; -} - |