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Issue #123: Blend2D painting implementation

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Jakub Melka
2024-02-10 18:04:58 +01:00
parent d314683d38
commit f3e1a94e1c
25 changed files with 844 additions and 778 deletions
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27
Pdf4QtLibWidgets/sources/pdfdrawwidget.cpp
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@ -22,6 +22,7 @@
#include "pdfannotation.h"
#include "pdfwidgetannotation.h"
#include "pdfwidgetformmanager.h"
#include "pdfblpainter.h"
#include <QPainter>
#include <QGridLayout>
@ -30,8 +31,6 @@
#include <QPixmapCache>
#include <QColorSpace>
#include <Blend2d.h>
#include "pdfdbgheap.h"
namespace pdf
@ -583,33 +582,23 @@ void PDFDrawWidget::paintEvent(QPaintEvent* event)
{
case RendererEngine::Blend2D:
{
BLContext blContext;
BLImage blImage;
QRect rect = this->rect();
if (m_blend2DframeBuffer.size() != rect.size())
{
m_blend2DframeBuffer = QImage(rect.size(), QImage::Format_ARGB32_Premultiplied);
}
BLContextCreateInfo info{};
info.reset();
info.flags = BL_CONTEXT_CREATE_FLAG_FALLBACK_TO_SYNC;
info.threadCount = QThread::idealThreadCount();
PDFBLPaintDevice blPaintDevice(m_blend2DframeBuffer, true);
QPainter blPainter;
blContext.setHint(BL_CONTEXT_HINT_RENDERING_QUALITY, BL_RENDERING_QUALITY_MAX_VALUE);
blImage.createFromData(m_blend2DframeBuffer.width(), m_blend2DframeBuffer.height(), BL_FORMAT_PRGB32, m_blend2DframeBuffer.bits(), m_blend2DframeBuffer.bytesPerLine());
if (blContext.begin(blImage, info) == BL_SUCCESS)
if (blPainter.begin(&blPaintDevice))
{
blContext.clearAll();
getPDFWidget()->getDrawWidgetProxy()->draw(blContext, rect);
blContext.end();
QPainter painter(this);
painter.drawImage(QPoint(0, 0), m_blend2DframeBuffer);
getPDFWidget()->getDrawWidgetProxy()->draw(&blPainter, rect);
blPainter.end();
}
QPainter painter(this);
painter.drawImage(QPoint(0, 0), m_blend2DframeBuffer);
break;
}