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diff --git a/tests/openjpeg/README.msvc b/tests/openjpeg/README.msvc new file mode 100644 index 00000000..fc9ea894 --- /dev/null +++ b/tests/openjpeg/README.msvc @@ -0,0 +1,40 @@ +How to compile the library under MS VC++ 6.0 +-------------------------------------------- + +The library comes in two versions : +- a static library that can be linked against any C/C++ program +- a Dynamic Link Library (Windows DLL) that can be used in any C/C++ program and in most interpreted languages (e.g. VB, C#, ...). + +In order to compile the library version *or* the DLL version, you will have to : + +1) Open the MSVC workspace named LibOpenJPEG.dsw +2) Set the choosen target as the active project, that means : + a) Go to the Menu 'Build -> Set Active Configuration' + b) Choose one of the following configuration : + - DllOpenJPEG - Win32 Release => creates a DLL in release mode named OpenJPEG.dll + - DllOpenJPEG - Win32 Debug => creates a DLL in debug mode named OpenJPEGd.dll + - LibOpenJPEG - Win32 Release => creates a static library in release mode named LibOpenJPEG.lib + - LibOpenJPEG - Win32 Debug => creates a static library in debug mode named LibOpenJPEGd.lib +3) Build the project : Menu -> Build -> Rebuild All + +The build process will create a directory named 'dist' that will contain all you need in order to use the library. + +Simple codec compilation +------------------------ + +Once you've built the library, you might want to test it with a basic codec. To do this, go to the codec directory and use one of the following projects to build an encoder and decoder respectively: +- image_to_j2k.dsw +- j2k_to_image.dsw + +IMPORTANT NOTE : +---------------- + +The encoder and decoder samples are configured to use the static version of the library. A link to the LibOpenJPEG static project is included in these projects so that you can build both a codec and the library in a single pass. + +However, you MUST NOTE that in order to use LibOpenJPEG as a static library in your program, you NEED to add the following compiler directive to your project : OPJ_STATIC +Look at the menu 'Project -> Settings -> C/C++ tab -> preprocessor definition' to see how this is configured. +When using OpenJPEG as a DLL, this compiler directive MUST NOT be used. + + + + |