/src/FreeImage/Source/LibMNG/README.config
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- Configuration options in libmng
- ===============================
- The library is fairly configurable through the use of a number of defines.
- Please note however that certain defines are for internal use only.
- The following list gives a summary of options that can be used externally to
- define the functionality of the library:
- ========================================
- #define MNG_BUILD_DLL
- This is used to indicate that a "standard" DLL should result from compiling
- the library. Please note the remarks in README.dll if you intend to work
- with the library as a DLL. The purpose of this option is to ensure that
- DLL builds have the same set of functions.
- #define MNG_BUILD_SO
- This is used to indicate that a "standard" shared library (SO) should result
- from a compilation. The purpose of this option is to ensure that all
- shared libraries generated this way will have the same set of functions.
- #define MNG_USE_DLL / #define MNG_USE_SO
- These should be used when including the library header in the compilation
- of an application to indicate that the compiler/linker must take the
- necessary steps to make the binary executable to use the standard DLL
- or shared library (SO).
- #define MNG_SKIP_ZLIB / #define MNG_SKIP_LCMS / #define MNG_SKIP_IJG6B
- Use these in conjunction with MNG_USE_DLL / MNG_USE_SO. This is useful if
- you only need the external definitions of the MNG library and not the others,
- which will speed up the compilation process.
- #define MNG_SUPPORT_FULL / #define MNG_SUPPORT_LC / #define MNG_SUPPORT_VLC
- These can be used to indicate the level of MNG spec compliance required.
- Currently only full MNG compliance is supported.
- #define MNG_SUPPORT_IJG6B
- This can be used to indicate if JNG support is required. This option will
- include the IJG JPEG-library. Note that MNG_SUPPORT_FULL will automatically
- set this option. Use this only if you need JNG support with MNG-(V)LC.
- #define MNG_FULL_CMS / #define MNG_GAMMA_ONLY / #define MNG_NO_CMS /
- #define MNG_APP_CMS
- These indicate the color-correction support level of the library.
- If you are on a platform that supports lcms (Little CMS by Marti Maria Saguar)
- then it is highly recommended to define MNG_FULL_CMS.
- If your platform has it's own CMS then select MNG_APP_CMS and be sure to
- include the appropriate callbacks in your app.
- In all other cases it is recommended to define MNG_GAMMA_ONLY.
- #define MNG_SUPPORT_READ / #define MNG_SUPPORT_WRITE /
- #define MNG_SUPPORT_DISPLAY
- These indicate the high-level support for reading, writing and/or
- displaying files. Note that in order to display a file, you'll need to read
- it first. (yes, really!)
- #define MNG_STORE_CHUNKS
- This indicates that the library should store chunk-information when reading
- a file. This information can then be processed through the
- MNG_ITERATE_CHUNKS() function. Note that you must specify this option if
- you want to create and write a new file.
- #define MNG_ACCESS_CHUNKS
- This is used to indicate that the app may need access to internally stored
- chunk information. MNG_STORE_CHUNKS must be defined as well for this option
- to function properly.
- #define MNG_INTERNAL_MEMMNGMT
- You can use this to have the library handle it's own memory allocation and
- deallocation through the "standard" memory functions. This option is turned
- off by default, which means your app must define the memory callbacks.
- #define MNG_ERROR_TELLTALE
- Set this on to allow human-readable error-messages to be included in the
- library and the error function and callback.
- #define MNG_BIGENDIAN_SUPPORTED
- This option should be used to indicate the hardware is based on big endian
- integers.
- #define MNG_SUPPORT_TRACE / #define MNG_TRACE_TELLTALE
- These two can be used when debugging an app. You'll need to have the trace
- callback setup also. This allows for a rather thorough investigation of the
- libraries function paths.
- ========================================
- Any other optional defines you may encounter are for internal use only.
- please do not specify them externally. In case of doubt, consult the
- support email lists. More info can be found on http://www.libmng.com