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This commit is contained in:
Kovid Goyal 2016-05-06 18:28:21 +05:30
parent c2e64fe726
commit 813fc81623
1 changed files with 4 additions and 0 deletions
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4
src/calibre/utils/imageops/imageops.cpp
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@ -606,6 +606,7 @@ void overlay(const QImage &image, QImage &canvas, unsigned int left, unsigned in
img = img.convertToFormat(QImage::Format_ARGB32_Premultiplied); img = img.convertToFormat(QImage::Format_ARGB32_Premultiplied);
if (img.isNull()) throw std::bad_alloc(); if (img.isNull()) throw std::bad_alloc();
} }
Py_BEGIN_ALLOW_THREADS;
for (r = 0; r < height; r++) { for (r = 0; r < height; r++) {
src = reinterpret_cast<const QRgb*>(img.constScanLine(r)); src = reinterpret_cast<const QRgb*>(img.constScanLine(r));
dest = reinterpret_cast<QRgb*>(canvas.scanLine(r + top)); dest = reinterpret_cast<QRgb*>(canvas.scanLine(r + top));
@ -620,13 +621,16 @@ void overlay(const QImage &image, QImage &canvas, unsigned int left, unsigned in
else if (s != 0) dest[left+c] = s + BYTE_MUL(dest[left+c], qAlpha(~s)); else if (s != 0) dest[left+c] = s + BYTE_MUL(dest[left+c], qAlpha(~s));
} }
} }
Py_END_ALLOW_THREADS;
} else { } else {
ENSURE32(img); ENSURE32(img);
Py_BEGIN_ALLOW_THREADS;
for (r = 0; r < bottom; r++) { for (r = 0; r < bottom; r++) {
src = reinterpret_cast<const QRgb*>(img.constScanLine(r)); src = reinterpret_cast<const QRgb*>(img.constScanLine(r));
dest = reinterpret_cast<QRgb*>(canvas.scanLine(r + top)); dest = reinterpret_cast<QRgb*>(canvas.scanLine(r + top));
memcpy(dest + left, src, (right - left) * sizeof(QRgb)); memcpy(dest + left, src, (right - left) * sizeof(QRgb));
} }
Py_END_ALLOW_THREADS;
} }
} // }}} } // }}}