diff options
| -rw-r--r-- | src/plugins/imageformats/gif/qgifhandler.cpp | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/plugins/imageformats/gif/qgifhandler.cpp b/src/plugins/imageformats/gif/qgifhandler.cpp index 5e2157e..58093aa 100644 --- a/src/plugins/imageformats/gif/qgifhandler.cpp +++ b/src/plugins/imageformats/gif/qgifhandler.cpp @@ -132,8 +132,8 @@ private: int code_size, clear_code, end_code, max_code_size, max_code; int firstcode, oldcode, incode; - short table[2][1<< max_lzw_bits]; - short stack[(1<<(max_lzw_bits))*2]; + short* table[2]; + short* stack; short *sp; bool needfirst; int x, y; @@ -162,6 +162,9 @@ QGIFFormat::QGIFFormat() lcmap = false; newFrame = false; partialNewFrame = false; + table[0] = 0; + table[1] = 0; + stack = 0; } /*! @@ -171,6 +174,7 @@ QGIFFormat::~QGIFFormat() { if (globalcmap) delete[] globalcmap; if (localcmap) delete[] localcmap; + delete [] stack; } void QGIFFormat::disposePrevious(QImage *image) @@ -237,6 +241,12 @@ int QGIFFormat::decode(QImage *image, const uchar *buffer, int length, // CompuServe Incorporated. GIF(sm) is a Service Mark property of // CompuServe Incorporated." + if (!stack) { + stack = new short[(1 << max_lzw_bits) * 4]; + table[0] = &stack[(1 << max_lzw_bits) * 2]; + table[1] = &stack[(1 << max_lzw_bits) * 3]; + } + image->detach(); int bpl = image->bytesPerLine(); unsigned char *bits = image->bits(); |