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Page prefetching, bugfixing

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This commit is contained in:
Jakub Melka
2019-12-15 17:46:58 +01:00
parent 618f334e5d
commit 3cd2dd5104
10 changed files with 94 additions and 24 deletions
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14
PdfForQtLib/sources/pdfrenderer.cpp
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@ -241,7 +241,7 @@ QImage PDFRasterizer::render(const PDFPage* page, const PDFPrecompiledPage* comp
compiledPage->draw(&painter, page->getCropBox(), matrix, features);
}
// Convert the image into format Format_ARGB32_Premultiplied for fast drawing.
// Jakub Melka: Convert the image into format Format_ARGB32_Premultiplied for fast drawing.
// If this format is used, then no image conversion is performed while drawing.
if (image.format() != QImage::Format_ARGB32_Premultiplied)
{
@ -304,13 +304,15 @@ void PDFRasterizer::releaseOpenGL()
if (m_surface)
{
Q_ASSERT(m_context);
Q_ASSERT(m_fbo);
// Delete framebuffer
m_context->makeCurrent(m_surface);
delete m_fbo;
m_fbo = nullptr;
m_context->doneCurrent();
if (m_fbo)
{
m_context->makeCurrent(m_surface);
delete m_fbo;
m_fbo = nullptr;
m_context->doneCurrent();
}
// Delete OpenGL context
delete m_context;