Various documentation improvements and fixes.
This commit is contained in:
Werner Lemberg
parent
640f654bd1
commit
d586927d16
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@ -7,10 +7,10 @@ CHANGES BETWEEN 2.10.4 and 2.11.0
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to enable it besides the `T1_CONFIG_OPTION_OLD_ENGINE` and
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`CFF_CONFIG_OPTION_OLD_ENGINE` options.
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- A new rendering module has been added to create 16-bit Signed
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- A new rendering module has been added to create 8-bit Signed
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Distance Field (SDF) bitmaps for both outline and bitmap glyphs.
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The new rendering mode is called `FT_RENDER_MODE_SDF`, the pixel
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mode is `FT_PIXEL_MODE_GRAY16`, and the corresponding raster flag
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mode is `FT_PIXEL_MODE_GRAY8`, and the corresponding raster flag
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is `FT_RASTER_FLAG_SDF`.
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This work was Anuj Verma's GSoC 2020 project.
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@ -72,6 +72,10 @@ CHANGES BETWEEN 2.10.4 and 2.11.0
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This work was Priyesh Kumar's GSoC 2020 project.
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- Improved Meson build support for the library.
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- Meson support to build The FreeType demo programs.
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- `ttdebug` didn't show changed point coordinates (bug introduced in
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version 2.10.3).
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@ -11,9 +11,6 @@ instructions in the file `INSTALL.UNIX' instead.
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1. Install GNU Make
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-------------------
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Because GNU Make is the only Make tool supported to compile
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FreeType 2, you should install it on your machine.
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The FreeType 2 build system relies on many features special to GNU
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Make.
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@ -100,6 +97,28 @@ instructions in the file `INSTALL.UNIX' instead.
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step 5.
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3a. Use clang instead of gcc
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----------------------------
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The `clang' compiler can use FreeType's setup for `gcc'; it is
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sufficient to set the `CC' variable, for example
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make CC=clang
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3b. Compiling with a C++ compiler
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---------------------------------
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FreeType can be built with a C++ compiler, for example
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make CC="g++"
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If `clang++' should be used it is necessary to also override the
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`ANSIFLAGS' variable:
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make CC="clang++" ANSIFLAGS=""
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4. Configure the build system for an unknown platform/compiler
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--------------------------------------------------------------
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@ -133,7 +152,8 @@ instructions in the file `INSTALL.UNIX' instead.
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To launch the build, simply invoke GNU Make again: The top
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Makefile will detect the configuration file and run the build with
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it.
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it. If you have used variables in step 3, you must used the same
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variables here, too.
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Final note
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@ -2457,6 +2457,7 @@ FT_BEGIN_HEADER
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*
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* @since:
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* 2.4.2
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*
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*/
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FT_EXPORT( FT_Error )
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FT_Reference_Face( FT_Face face );
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@ -3247,6 +3248,10 @@ FT_BEGIN_HEADER
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* delta ::
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* A pointer a translation vector. Set this to NULL if you are not
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* interested in the value.
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*
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* @since:
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* 2.11
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*
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*/
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FT_EXPORT( void )
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FT_Get_Transform( FT_Face face,
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@ -3267,14 +3272,14 @@ FT_BEGIN_HEADER
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* in the @FT_GlyphSlotRec structure gives the format of the returned
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* bitmap.
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*
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* All modes except @FT_RENDER_MODE_MONO and @FT_RENDER_MODE_SDF use 256
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* levels of opacity, indicating pixel coverage. Use linear alpha
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* blending and gamma correction to correctly render non-monochrome
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* glyph bitmaps onto a surface; see @FT_Render_Glyph.
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* All modes except @FT_RENDER_MODE_MONO use 256 levels of opacity,
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* indicating pixel coverage. Use linear alpha blending and gamma
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* correction to correctly render non-monochrome glyph bitmaps onto a
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* surface; see @FT_Render_Glyph.
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*
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* The @FT_RENDER_MODE_SDF is a special render mode that uses up to
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* 65536 distance values, indicating the signed distance from the grid
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* position to the nearest outline.
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* The @FT_RENDER_MODE_SDF is a special render mode that uses up to 256
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* distance values, indicating the signed distance from the grid position
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* to the nearest outline.
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*
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* @values:
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* FT_RENDER_MODE_NORMAL ::
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@ -4295,6 +4300,10 @@ FT_BEGIN_HEADER
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* configured on the @FT_Face through @FT_Set_Var_Design_Coordinates.
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* This implies that always static (interpolated) values are returned
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* for both variable and non-variable formats.
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*
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* @since:
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* 2.11
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*
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*/
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typedef enum FT_PaintFormat_
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{
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@ -4338,6 +4347,10 @@ FT_BEGIN_HEADER
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* p ::
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* An opaque pointer into 'COLR' table data. The caller must set this
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* to `NULL` before the first call of @FT_Get_Colorline_Stops.
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*
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* @since:
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* 2.11
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*
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*/
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typedef struct FT_ColorStopIterator_
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{
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@ -4364,6 +4377,10 @@ FT_BEGIN_HEADER
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*
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* alpha ::
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* Alpha transparency value multiplied with the value from 'CPAL'.
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*
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* @since:
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* 2.11
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*
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*/
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typedef struct FT_ColorIndex_
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{
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@ -4388,6 +4405,10 @@ FT_BEGIN_HEADER
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*
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* color ::
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* The color information for this stop, see @FT_ColorIndex.
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*
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* @since:
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* 2.11
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*
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*/
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typedef struct FT_ColorStop_
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{
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@ -4406,6 +4427,10 @@ FT_BEGIN_HEADER
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* An enumeration representing the 'Extend' mode of the 'COLR' v1
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* extensions, see 'https://github.com/googlefonts/colr-gradients-spec'.
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* It describes how the gradient fill continues at the other boundaries.
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*
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* @since:
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* 2.11
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*
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*/
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typedef enum FT_PaintExtend_
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{
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@ -4433,6 +4458,10 @@ FT_BEGIN_HEADER
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* color_stop_iterator ::
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* The @FT_ColorStopIterator used to enumerate and retrieve the
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* actual @FT_ColorStop's.
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*
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* @since:
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* 2.11
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*
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*/
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typedef struct FT_ColorLine_
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{
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@ -4475,6 +4504,9 @@ FT_BEGIN_HEADER
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* dy ::
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* y translation.
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*
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* @since:
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* 2.11
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*
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*/
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typedef struct FT_Affine_23_
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{
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@ -4493,6 +4525,10 @@ FT_BEGIN_HEADER
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* An enumeration listing the 'COLR' v1 composite modes used in
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* @FT_PaintComposite. For more details on each paint mode, see
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* 'https://www.w3.org/TR/compositing-1/#porterduffcompositingoperators'.
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*
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* @since:
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* 2.11
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*
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*/
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typedef enum FT_Composite_Mode_
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{
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@ -4551,6 +4587,10 @@ FT_BEGIN_HEADER
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* insert_root_transform ::
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* An internal boolean to track whether an initial root transform is
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* to be provided. Do not set this value.
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*
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* @since:
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* 2.11
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*
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*/
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typedef struct FT_Opaque_Paint_
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{
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@ -4575,6 +4615,10 @@ FT_BEGIN_HEADER
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* @fields:
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* layer_iterator ::
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* The layer iterator that describes the layers of this paint.
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*
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* @since:
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* 2.11
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*
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*/
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typedef struct FT_PaintColrLayers_
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{
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@ -4597,6 +4641,10 @@ FT_BEGIN_HEADER
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* @fields:
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* color ::
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* The color information for this solid paint, see @FT_ColorIndex.
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*
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* @since:
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* 2.11
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*
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*/
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typedef struct FT_PaintSolid_
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{
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@ -4630,6 +4678,10 @@ FT_BEGIN_HEADER
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* p2 ::
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* Optional point~p2 to rotate the gradient (in font units).
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* Otherwise equal to~p0.
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*
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* @since:
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* 2.11
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*
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*/
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typedef struct FT_PaintLinearGradient_
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{
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@ -4674,6 +4726,10 @@ FT_BEGIN_HEADER
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* r1 ::
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* The radius of the end circle of the radial gradient (in font
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* units).
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*
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* @since:
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* 2.11
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*
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*/
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typedef struct FT_PaintRadialGradient_
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{
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@ -4717,6 +4773,9 @@ FT_BEGIN_HEADER
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* specifying degrees. Values are given counter-clockwise, starting
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* from the (positive) y~axis.
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*
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* @since:
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* 2.11
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*
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*/
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typedef struct FT_PaintSweepGradient_
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{
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@ -4746,6 +4805,9 @@ FT_BEGIN_HEADER
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* The glyph ID from the 'glyf' table, which serves as the contour
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* information that is filled with paint.
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*
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* @since:
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* 2.11
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*
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*/
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typedef struct FT_PaintGlyph_
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{
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@ -4767,6 +4829,10 @@ FT_BEGIN_HEADER
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* glyphID ::
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* The glyph ID from the `BaseGlyphV1List` table that is drawn for
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* this paint.
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*
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* @since:
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* 2.11
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*
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*/
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typedef struct FT_PaintColrGlyph_
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{
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@ -4789,6 +4855,10 @@ FT_BEGIN_HEADER
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*
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* affine ::
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* A 2x3 transformation matrix in @FT_Affine23 format.
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*
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* @since:
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* 2.11
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*
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*/
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typedef struct FT_PaintTransformed_
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{
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@ -4817,6 +4887,10 @@ FT_BEGIN_HEADER
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*
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* dy ::
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* Translation in y~direction (in font units).
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*
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* @since:
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* 2.11
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*
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*/
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typedef struct FT_PaintTranslate_
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{
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@ -4852,6 +4926,10 @@ FT_BEGIN_HEADER
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* center_y ::
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* The y~coordinate of the pivot point of the rotation (in font
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* units).
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*
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* @since:
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* 2.11
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*
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*/
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typedef struct FT_PaintRotate_
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@ -4892,6 +4970,10 @@ FT_BEGIN_HEADER
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*
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* center_y ::
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* The y~coordinate of the pivot point of the skew (in font units).
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*
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* @since:
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* 2.11
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*
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*/
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typedef struct FT_PaintSkew_
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{
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@ -4928,6 +5010,10 @@ FT_BEGIN_HEADER
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* backdrop_paint ::
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* An @FT_OpaquePaint object referencing the backdrop paint that
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* `source_paint` is composited onto.
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*
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* @since:
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* 2.11
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*
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*/
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typedef struct FT_PaintComposite_
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{
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@ -4969,6 +5055,10 @@ FT_BEGIN_HEADER
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* * @FT_PaintSkew
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* * @FT_PaintComposite
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* * @FT_PaintColrGlyph
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*
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* @since:
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* 2.11
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*
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*/
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typedef struct FT_COLR_Paint_
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{
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@ -5010,6 +5100,10 @@ FT_BEGIN_HEADER
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*
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* FT_COLOR_NO_ROOT_TRANSFORM ::
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* Do not output an initial root transform.
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*
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* @since:
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* 2.11
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*
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*/
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typedef enum FT_Color_Root_Transform_
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{
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@ -5100,6 +5194,10 @@ FT_BEGIN_HEADER
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* Value~1 if everything is OK. If no color glyph is found, or the root
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* paint could not be retrieved, value~0 gets returned. In case of an
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* error, value~0 is returned also.
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*
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* @since:
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* 2.11
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*
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*/
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FT_EXPORT( FT_Bool )
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FT_Get_Color_Glyph_Paint( FT_Face face,
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@ -5145,6 +5243,10 @@ FT_BEGIN_HEADER
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* @return:
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* Value~1 if everything is OK. Value~0 gets returned when the paint
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* object can not be retrieved or any other error occurs.
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*
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* @since:
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* 2.11
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*
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*/
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FT_EXPORT( FT_Bool )
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FT_Get_Paint_Layers( FT_Face face,
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@ -5183,6 +5285,10 @@ FT_BEGIN_HEADER
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* Value~1 if everything is OK. If there are no more color stops,
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* value~0 gets returned. In case of an error, value~0 is returned
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* also.
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*
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* @since:
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* 2.11
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*
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*/
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FT_EXPORT( FT_Bool )
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FT_Get_Colorline_Stops( FT_Face face,
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@ -5216,6 +5322,10 @@ FT_BEGIN_HEADER
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* @return:
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* Value~1 if everything is OK. Value~0 if no details can be found for
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* this paint or any other error occured.
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*
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* @since:
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* 2.11
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*
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*/
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FT_EXPORT( FT_Bool )
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FT_Get_Paint( FT_Face face,
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@ -5313,6 +5423,7 @@ FT_BEGIN_HEADER
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*
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* @since:
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* 2.3.8
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*
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*/
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FT_EXPORT( FT_UShort )
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FT_Get_FSType_Flags( FT_Face face );
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@ -5406,6 +5517,7 @@ FT_BEGIN_HEADER
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*
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* @since:
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* 2.3.6
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*
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*/
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FT_EXPORT( FT_UInt )
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FT_Face_GetCharVariantIndex( FT_Face face,
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@ -5442,6 +5554,7 @@ FT_BEGIN_HEADER
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*
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* @since:
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* 2.3.6
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*
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*/
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FT_EXPORT( FT_Int )
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FT_Face_GetCharVariantIsDefault( FT_Face face,
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@ -5473,6 +5586,7 @@ FT_BEGIN_HEADER
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*
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* @since:
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* 2.3.6
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*
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*/
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FT_EXPORT( FT_UInt32* )
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FT_Face_GetVariantSelectors( FT_Face face );
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@ -5506,6 +5620,7 @@ FT_BEGIN_HEADER
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*
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* @since:
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* 2.3.6
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*
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*/
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FT_EXPORT( FT_UInt32* )
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FT_Face_GetVariantsOfChar( FT_Face face,
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@ -5540,6 +5655,7 @@ FT_BEGIN_HEADER
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*
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* @since:
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* 2.3.6
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*
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*/
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FT_EXPORT( FT_UInt32* )
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FT_Face_GetCharsOfVariant( FT_Face face,
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@ -5875,6 +5991,7 @@ FT_BEGIN_HEADER
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*
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* @since:
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* 2.3.5
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*
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*/
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FT_EXPORT( FT_Bool )
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FT_Face_CheckTrueTypePatents( FT_Face face );
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@ -5903,6 +6020,7 @@ FT_BEGIN_HEADER
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*
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* @since:
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* 2.3.5
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*
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*/
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FT_EXPORT( FT_Bool )
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FT_Face_SetUnpatentedHinting( FT_Face face,
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