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Fix Image::getRowStrideSize() function (fixes crash reported in issue 443)

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This commit is contained in:
David Capello 2014-08-09 12:10:48 -03:00
parent 7faf8a1bb7
commit 3bbdb80461
2 changed files with 15 additions and 5 deletions
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18
src/app/undoers/image_area.cpp
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@ -27,6 +27,8 @@
#include "undo/undo_exception.h"
#include "undo/undoers_collector.h"
#include <algorithm>
namespace app {
namespace undoers {
@ -42,8 +44,12 @@ ImageArea::ImageArea(ObjectsContainer* objects, Image* image, int x, int y, int
ASSERT(w >= 1 && h >= 1);
ASSERT(x >= 0 && y >= 0 && x+w <= image->width() && y+h <= image->height());
for (int v=0; v<h; ++v)
memcpy(&m_data[m_lineSize*v], image->getPixelAddress(x, y+v), m_lineSize);
std::vector<uint8_t>::iterator it = m_data.begin();
for (int v=0; v<h; ++v) {
uint8_t* addr = image->getPixelAddress(x, y+v);
std::copy(addr, addr+m_lineSize, it);
it += m_lineSize;
}
}
void ImageArea::dispose()
@ -62,8 +68,12 @@ void ImageArea::revert(ObjectsContainer* objects, UndoersCollector* redoers)
redoers->pushUndoer(new ImageArea(objects, image, m_x, m_y, m_w, m_h));
// Restore the old image portion
for (int v=0; v<m_h; ++v)
memcpy(image->getPixelAddress(m_x, m_y+v), &m_data[m_lineSize*v], m_lineSize);
std::vector<uint8_t>::iterator it = m_data.begin();
for (int v=0; v<m_h; ++v) {
uint8_t* addr = image->getPixelAddress(m_x, m_y+v);
std::copy(it, it+m_lineSize, addr);
it += m_lineSize;
}
}
} // namespace undoers

2
src/raster/image.cpp
View File

@ -57,7 +57,7 @@ int Image::getRowStrideSize() const
int Image::getRowStrideSize(int pixels_per_row) const
{
return calculate_rowstride_bytes(pixelFormat(), m_width);
return calculate_rowstride_bytes(pixelFormat(), pixels_per_row);
}
// static