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2020-07-02 Priyesh Kumar <priyeshkkumar@gmail.com>
* Fixed some code layout
* Added a new header- `include/freetype/ftlogging.h` for public APIs to
use when using logging:
1. FT_Trace_Set_Level(): Used to change trace level of components at
runtime.
2. FT_Trace_Set_Default_Level(): Used to set the default value of trace
level(which is supplied by env FT2_DEBUG)
* include/freetype/internal/ftdebug.h:
1. Added dlg support for FT_ERROR, now error messages are also written
on file if FT_LOGGING is enabled.
2. Changed `ft_debug_init()`: now it takes an argument of type const
char* which is used to specify trace level.
* src/base/ftobjs.c: Changed `ft_debug_init()`, now it passes an argument
to define trace level.
* src/base/ftdebug.c: Added definitions of public APIs
`FT_Trace_Set_Default_Level()` and `FT_Trace_Set_Level()`
* Strated working on Callback.
* Minor Updates on support of FT_ERROR part
2020-06-30 Priyesh Kumar <priyeshkkumar@gmail.com>
* Adding new line at end of file
* include/freetype/internal/ftdebug.h: Added a FreeType specific dlg
output handler to print trace logs to file ~
`ft_freetype_output_handler()`
* src/base/ftdebug.c:
1. If FT_LOGGING is enabled `ft_debug_init()` will be called from
`ft_logging_init()`
2. Added function definition of `ft_freetype_output_handler)()`
* src/base/ftobjs.c: If FT_LOGGING macro is disabled, only then FreeType
will call `ft_debug_init()` else it is controlled by logging APIs.
* Fixed Scaling
2020-06-29 Priyesh Kumar <priyeshkkumar@gmail.com>
* Added submodule - dlg library (https://github.com/nyorain/dlg)
in src/dlg.
This library is used as a logger for FreeType.
* include/freetype/config/ftoption.h: Added macro `FT_LOGGING`
to enable/disable logging in FreeType using dlg.
* [builds] unix-cc-in: Added -std=c99, since dlg does not support
C standards below c99.
* include/freetype/internal/ftdebug.h: Created an environment for dlg
support in FreeType.
* include/freetype/internal/ftdebug.h: Added functions
`ft_logging_init()` and `ft_logging_deinit()` for initializing and
un-initalizing FILE*.
* src/base/ftdebug.c:
1. Added a FILE* to write logs to file
2. Added function definitions for functions
`ft_logging_init()` and `ft_logging_deinit()`.
* src/base/ftinit.c:
1. Added a function call to `ft_logging_init()` in `FT_Init_FreeType()`
if FT_LOGGING macro is enabled.
2. Added function call to `ft_logging_deinit()` in `FT_Done_FreeType()`
if FT_LOGGING macro is enabled.
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