diff options
Diffstat (limited to 'engines/sword25/gfx/image')
| -rw-r--r-- | engines/sword25/gfx/image/pngloader.cpp | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/engines/sword25/gfx/image/pngloader.cpp b/engines/sword25/gfx/image/pngloader.cpp index c59d68724d..a2a63fdef0 100644 --- a/engines/sword25/gfx/image/pngloader.cpp +++ b/engines/sword25/gfx/image/pngloader.cpp @@ -56,8 +56,9 @@ PNGLoader::PNGLoader() { // ----------------------------------------------------------------------------- static void png_user_read_data(png_structp png_ptr, png_bytep data, png_size_t length) { - memcpy(data, (char *)png_ptr->io_ptr, length); - png_ptr->io_ptr = (void *)((png_size_t)png_ptr->io_ptr + length); + const byte **ref = (const byte **)png_get_io_ptr(png_ptr); + memcpy(data, *ref, length); + *ref += length; } // ----------------------------------------------------------------------------- @@ -97,7 +98,8 @@ bool PNGLoader::DoDecodeImage(const byte *FileDataPtr, uint FileSize, GraphicEn } // Alternative Lesefunktion benutzen - png_set_read_fn(png_ptr, (void *)FileDataPtr, png_user_read_data); + const byte **ref = &FileDataPtr; + png_set_read_fn(png_ptr, (void *)ref, png_user_read_data); // PNG Header einlesen png_read_info(png_ptr, info_ptr); @@ -234,7 +236,8 @@ bool PNGLoader::DoImageProperties(const byte *FileDataPtr, uint FileSize, Graphi } // Alternative Lesefunktion benutzen - png_set_read_fn(png_ptr, (void *)FileDataPtr, png_user_read_data); + const byte **ref = &FileDataPtr; + png_set_read_fn(png_ptr, (void *)ref, png_user_read_data); // PNG Header einlesen png_read_info(png_ptr, info_ptr); |