diff options
| -rw-r--r-- | src/gui/image/qimage.cpp | 26 | ||||
| -rw-r--r-- | tests/auto/qimage/tst_qimage.cpp | 4 |
2 files changed, 24 insertions, 6 deletions
diff --git a/src/gui/image/qimage.cpp b/src/gui/image/qimage.cpp index bb8a994..79f266d 100644 --- a/src/gui/image/qimage.cpp +++ b/src/gui/image/qimage.cpp @@ -2338,6 +2338,12 @@ static bool convert_indexed8_to_ARGB_PM_inplace(QImageData *data, Qt::ImageConve const int width = data->width; const int src_pad = data->bytes_per_line - width; const int dest_pad = (dst_bytes_per_line >> 2) - width; + if (data->colortable.size() == 0) { + data->colortable.resize(256); + for (int i = 0; i < 256; ++i) + data->colortable[i] = qRgb(i, i, i); + } + const int tableSize = data->colortable.size() - 1; for (int i = 0; i < data->height; ++i) { src_data -= src_pad; @@ -2345,7 +2351,7 @@ static bool convert_indexed8_to_ARGB_PM_inplace(QImageData *data, Qt::ImageConve for (int pixI = 0; pixI < width; ++pixI) { --src_data; --dest_data; - const uint pixel = data->colortable[*src_data]; + const uint pixel = data->colortable[qMin<int>(tableSize, *src_data)]; *dest_data = (quint32) PREMUL(pixel); } } @@ -2377,6 +2383,12 @@ static bool convert_indexed8_to_RGB_inplace(QImageData *data, Qt::ImageConversio const int width = data->width; const int src_pad = data->bytes_per_line - width; const int dest_pad = (dst_bytes_per_line >> 2) - width; + if (data->colortable.size() == 0) { + data->colortable.resize(256); + for (int i = 0; i < 256; ++i) + data->colortable[i] = qRgb(i, i, i); + } + const int tableSize = data->colortable.size() - 1; for (int i = 0; i < data->height; ++i) { src_data -= src_pad; @@ -2384,7 +2396,7 @@ static bool convert_indexed8_to_RGB_inplace(QImageData *data, Qt::ImageConversio for (int pixI = 0; pixI < width; ++pixI) { --src_data; --dest_data; - *dest_data = (quint32) data->colortable[*src_data]; + *dest_data = (quint32) data->colortable[qMin<int>(tableSize, *src_data)]; } } @@ -2415,6 +2427,12 @@ static bool convert_indexed8_to_RGB16_inplace(QImageData *data, Qt::ImageConvers const int width = data->width; const int src_pad = data->bytes_per_line - width; const int dest_pad = (dst_bytes_per_line >> 1) - width; + if (data->colortable.size() == 0) { + data->colortable.resize(256); + for (int i = 0; i < 256; ++i) + data->colortable[i] = qRgb(i, i, i); + } + const int tableSize = data->colortable.size() - 1; for (int i = 0; i < data->height; ++i) { src_data -= src_pad; @@ -2422,7 +2440,7 @@ static bool convert_indexed8_to_RGB16_inplace(QImageData *data, Qt::ImageConvers for (int pixI = 0; pixI < width; ++pixI) { --src_data; --dest_data; - const uint pixel = data->colortable[*src_data]; + const uint pixel = data->colortable[qMin<int>(tableSize, *src_data)]; *dest_data = qt_colorConvert<quint16, quint32>(pixel, 0); } } @@ -4061,7 +4079,7 @@ void QImage::setPixel(int x, int y, uint index_or_rgb) } break; case Format_Indexed8: - if (index_or_rgb > (uint)d->colortable.size()) { + if (index_or_rgb >= (uint)d->colortable.size()) { qWarning("QImage::setPixel: Index %d out of range", index_or_rgb); return; } diff --git a/tests/auto/qimage/tst_qimage.cpp b/tests/auto/qimage/tst_qimage.cpp index 16deb03..5052114 100644 --- a/tests/auto/qimage/tst_qimage.cpp +++ b/tests/auto/qimage/tst_qimage.cpp @@ -945,11 +945,11 @@ void tst_QImage::rotate() const int n = original.colorTable().size(); for (int x = 0; x < w; ++x) { original.setPixel(x, 0, x % n); - original.setPixel(x,h - 1, n - (x % n)); + original.setPixel(x, h - 1, n - (x % n) - 1); } for (int y = 0; y < h; ++y) { original.setPixel(0, y, y % n); - original.setPixel(w - 1, y, n - (y % n)); + original.setPixel(w - 1, y, n - (y % n) - 1); } } |