111     static png_byte   **ppbRowPointers = NULL;  in PngLoadImage()  local
248         if ((ppbRowPointers = (png_bytepp) malloc((*piHeight)  in PngLoadImage()
257             ppbRowPointers[i] = pbImageData + i * ulRowBytes;  in PngLoadImage()
261         png_read_image(png_ptr, ppbRowPointers);  in PngLoadImage()
269         free (ppbRowPointers);  in PngLoadImage()
270         ppbRowPointers = NULL;  in PngLoadImage()
281         if(ppbRowPointers)  in PngLoadImage()
282             free (ppbRowPointers);  in PngLoadImage()
303     static png_byte   **ppbRowPointers = NULL;  in PngSaveImage()  local
361         if ((ppbRowPointers = (png_bytepp) malloc(iHeight * sizeof(png_bytep))) == NULL)  in PngSaveImage()
367             ppbRowPointers[i] = pDiData + i * (((ulRowBytes + 3) >> 2) << 2);  in PngSaveImage()
371         png_write_image (png_ptr, ppbRowPointers);  in PngSaveImage()
379         free (ppbRowPointers);  in PngSaveImage()
380         ppbRowPointers = NULL;  in PngSaveImage()
393         if(ppbRowPointers)  in PngSaveImage()
394             free (ppbRowPointers);  in PngSaveImage()