diff options
Diffstat (limited to 'thirdparties/common/include/libfreetype/freetype2/freetype/ftimage.h')
-rwxr-xr-x | thirdparties/common/include/libfreetype/freetype2/freetype/ftimage.h | 2113 |
1 files changed, 1051 insertions, 1062 deletions
diff --git a/thirdparties/common/include/libfreetype/freetype2/freetype/ftimage.h b/thirdparties/common/include/libfreetype/freetype2/freetype/ftimage.h index 7834303..1766702 100755 --- a/thirdparties/common/include/libfreetype/freetype2/freetype/ftimage.h +++ b/thirdparties/common/include/libfreetype/freetype2/freetype/ftimage.h @@ -17,19 +17,19 @@ /* */ /***************************************************************************/ - /*************************************************************************/ - /* */ - /* Note: A `raster' is simply a scan-line converter, used to render */ - /* FT_Outlines into FT_Bitmaps. */ - /* */ - /*************************************************************************/ +/*************************************************************************/ +/* */ +/* Note: A `raster' is simply a scan-line converter, used to render */ +/* FT_Outlines into FT_Bitmaps. */ +/* */ +/*************************************************************************/ #ifndef __FTIMAGE_H__ #define __FTIMAGE_H__ - /* _STANDALONE_ is from ftgrays.c */ +/* _STANDALONE_ is from ftgrays.c */ #ifndef _STANDALONE_ #include <ft2build.h> #endif @@ -38,139 +38,136 @@ FT_BEGIN_HEADER - /*************************************************************************/ - /* */ - /* <Section> */ - /* basic_types */ - /* */ - /*************************************************************************/ - - - /*************************************************************************/ - /* */ - /* <Type> */ - /* FT_Pos */ - /* */ - /* <Description> */ - /* The type FT_Pos is used to store vectorial coordinates. Depending */ - /* on the context, these can represent distances in integer font */ - /* units, or 16.16, or 26.6 fixed-point pixel coordinates. */ - /* */ - typedef signed long FT_Pos; - - - /*************************************************************************/ - /* */ - /* <Struct> */ - /* FT_Vector */ - /* */ - /* <Description> */ - /* A simple structure used to store a 2D vector; coordinates are of */ - /* the FT_Pos type. */ - /* */ - /* <Fields> */ - /* x :: The horizontal coordinate. */ - /* y :: The vertical coordinate. */ - /* */ - typedef struct FT_Vector_ - { +/*************************************************************************/ +/* */ +/* <Section> */ +/* basic_types */ +/* */ +/*************************************************************************/ + + +/*************************************************************************/ +/* */ +/* <Type> */ +/* FT_Pos */ +/* */ +/* <Description> */ +/* The type FT_Pos is used to store vectorial coordinates. Depending */ +/* on the context, these can represent distances in integer font */ +/* units, or 16.16, or 26.6 fixed-point pixel coordinates. */ +/* */ +typedef signed long FT_Pos; + + +/*************************************************************************/ +/* */ +/* <Struct> */ +/* FT_Vector */ +/* */ +/* <Description> */ +/* A simple structure used to store a 2D vector; coordinates are of */ +/* the FT_Pos type. */ +/* */ +/* <Fields> */ +/* x :: The horizontal coordinate. */ +/* y :: The vertical coordinate. */ +/* */ +typedef struct FT_Vector_ { FT_Pos x; FT_Pos y; - } FT_Vector; - - - /*************************************************************************/ - /* */ - /* <Struct> */ - /* FT_BBox */ - /* */ - /* <Description> */ - /* A structure used to hold an outline's bounding box, i.e., the */ - /* coordinates of its extrema in the horizontal and vertical */ - /* directions. */ - /* */ - /* <Fields> */ - /* xMin :: The horizontal minimum (left-most). */ - /* */ - /* yMin :: The vertical minimum (bottom-most). */ - /* */ - /* xMax :: The horizontal maximum (right-most). */ - /* */ - /* yMax :: The vertical maximum (top-most). */ - /* */ - /* <Note> */ - /* The bounding box is specified with the coordinates of the lower */ - /* left and the upper right corner. In PostScript, those values are */ - /* often called (llx,lly) and (urx,ury), respectively. */ - /* */ - /* If `yMin' is negative, this value gives the glyph's descender. */ - /* Otherwise, the glyph doesn't descend below the baseline. */ - /* Similarly, if `ymax' is positive, this value gives the glyph's */ - /* ascender. */ - /* */ - /* `xMin' gives the horizontal distance from the glyph's origin to */ - /* the left edge of the glyph's bounding box. If `xMin' is negative, */ - /* the glyph extends to the left of the origin. */ - /* */ - typedef struct FT_BBox_ - { +} FT_Vector; + + +/*************************************************************************/ +/* */ +/* <Struct> */ +/* FT_BBox */ +/* */ +/* <Description> */ +/* A structure used to hold an outline's bounding box, i.e., the */ +/* coordinates of its extrema in the horizontal and vertical */ +/* directions. */ +/* */ +/* <Fields> */ +/* xMin :: The horizontal minimum (left-most). */ +/* */ +/* yMin :: The vertical minimum (bottom-most). */ +/* */ +/* xMax :: The horizontal maximum (right-most). */ +/* */ +/* yMax :: The vertical maximum (top-most). */ +/* */ +/* <Note> */ +/* The bounding box is specified with the coordinates of the lower */ +/* left and the upper right corner. In PostScript, those values are */ +/* often called (llx,lly) and (urx,ury), respectively. */ +/* */ +/* If `yMin' is negative, this value gives the glyph's descender. */ +/* Otherwise, the glyph doesn't descend below the baseline. */ +/* Similarly, if `ymax' is positive, this value gives the glyph's */ +/* ascender. */ +/* */ +/* `xMin' gives the horizontal distance from the glyph's origin to */ +/* the left edge of the glyph's bounding box. If `xMin' is negative, */ +/* the glyph extends to the left of the origin. */ +/* */ +typedef struct FT_BBox_ { FT_Pos xMin, yMin; FT_Pos xMax, yMax; - } FT_BBox; - - - /*************************************************************************/ - /* */ - /* <Enum> */ - /* FT_Pixel_Mode */ - /* */ - /* <Description> */ - /* An enumeration type used to describe the format of pixels in a */ - /* given bitmap. Note that additional formats may be added in the */ - /* future. */ - /* */ - /* <Values> */ - /* FT_PIXEL_MODE_NONE :: */ - /* Value~0 is reserved. */ - /* */ - /* FT_PIXEL_MODE_MONO :: */ - /* A monochrome bitmap, using 1~bit per pixel. Note that pixels */ - /* are stored in most-significant order (MSB), which means that */ - /* the left-most pixel in a byte has value 128. */ - /* */ - /* FT_PIXEL_MODE_GRAY :: */ - /* An 8-bit bitmap, generally used to represent anti-aliased glyph */ - /* images. Each pixel is stored in one byte. Note that the number */ - /* of `gray' levels is stored in the `num_grays' field of the */ - /* @FT_Bitmap structure (it generally is 256). */ - /* */ - /* FT_PIXEL_MODE_GRAY2 :: */ - /* A 2-bit per pixel bitmap, used to represent embedded */ - /* anti-aliased bitmaps in font files according to the OpenType */ - /* specification. We haven't found a single font using this */ - /* format, however. */ - /* */ - /* FT_PIXEL_MODE_GRAY4 :: */ - /* A 4-bit per pixel bitmap, representing embedded anti-aliased */ - /* bitmaps in font files according to the OpenType specification. */ - /* We haven't found a single font using this format, however. */ - /* */ - /* FT_PIXEL_MODE_LCD :: */ - /* An 8-bit bitmap, representing RGB or BGR decimated glyph images */ - /* used for display on LCD displays; the bitmap is three times */ - /* wider than the original glyph image. See also */ - /* @FT_RENDER_MODE_LCD. */ - /* */ - /* FT_PIXEL_MODE_LCD_V :: */ - /* An 8-bit bitmap, representing RGB or BGR decimated glyph images */ - /* used for display on rotated LCD displays; the bitmap is three */ - /* times taller than the original glyph image. See also */ - /* @FT_RENDER_MODE_LCD_V. */ - /* */ - typedef enum FT_Pixel_Mode_ - { +} FT_BBox; + + +/*************************************************************************/ +/* */ +/* <Enum> */ +/* FT_Pixel_Mode */ +/* */ +/* <Description> */ +/* An enumeration type used to describe the format of pixels in a */ +/* given bitmap. Note that additional formats may be added in the */ +/* future. */ +/* */ +/* <Values> */ +/* FT_PIXEL_MODE_NONE :: */ +/* Value~0 is reserved. */ +/* */ +/* FT_PIXEL_MODE_MONO :: */ +/* A monochrome bitmap, using 1~bit per pixel. Note that pixels */ +/* are stored in most-significant order (MSB), which means that */ +/* the left-most pixel in a byte has value 128. */ +/* */ +/* FT_PIXEL_MODE_GRAY :: */ +/* An 8-bit bitmap, generally used to represent anti-aliased glyph */ +/* images. Each pixel is stored in one byte. Note that the number */ +/* of `gray' levels is stored in the `num_grays' field of the */ +/* @FT_Bitmap structure (it generally is 256). */ +/* */ +/* FT_PIXEL_MODE_GRAY2 :: */ +/* A 2-bit per pixel bitmap, used to represent embedded */ +/* anti-aliased bitmaps in font files according to the OpenType */ +/* specification. We haven't found a single font using this */ +/* format, however. */ +/* */ +/* FT_PIXEL_MODE_GRAY4 :: */ +/* A 4-bit per pixel bitmap, representing embedded anti-aliased */ +/* bitmaps in font files according to the OpenType specification. */ +/* We haven't found a single font using this format, however. */ +/* */ +/* FT_PIXEL_MODE_LCD :: */ +/* An 8-bit bitmap, representing RGB or BGR decimated glyph images */ +/* used for display on LCD displays; the bitmap is three times */ +/* wider than the original glyph image. See also */ +/* @FT_RENDER_MODE_LCD. */ +/* */ +/* FT_PIXEL_MODE_LCD_V :: */ +/* An 8-bit bitmap, representing RGB or BGR decimated glyph images */ +/* used for display on rotated LCD displays; the bitmap is three */ +/* times taller than the original glyph image. See also */ +/* @FT_RENDER_MODE_LCD_V. */ +/* */ +typedef enum FT_Pixel_Mode_ { FT_PIXEL_MODE_NONE = 0, FT_PIXEL_MODE_MONO, FT_PIXEL_MODE_GRAY, @@ -181,134 +178,132 @@ FT_BEGIN_HEADER FT_PIXEL_MODE_MAX /* do not remove */ - } FT_Pixel_Mode; - - - /*************************************************************************/ - /* */ - /* <Enum> */ - /* ft_pixel_mode_xxx */ - /* */ - /* <Description> */ - /* A list of deprecated constants. Use the corresponding */ - /* @FT_Pixel_Mode values instead. */ - /* */ - /* <Values> */ - /* ft_pixel_mode_none :: See @FT_PIXEL_MODE_NONE. */ - /* ft_pixel_mode_mono :: See @FT_PIXEL_MODE_MONO. */ - /* ft_pixel_mode_grays :: See @FT_PIXEL_MODE_GRAY. */ - /* ft_pixel_mode_pal2 :: See @FT_PIXEL_MODE_GRAY2. */ - /* ft_pixel_mode_pal4 :: See @FT_PIXEL_MODE_GRAY4. */ - /* */ +} FT_Pixel_Mode; + + +/*************************************************************************/ +/* */ +/* <Enum> */ +/* ft_pixel_mode_xxx */ +/* */ +/* <Description> */ +/* A list of deprecated constants. Use the corresponding */ +/* @FT_Pixel_Mode values instead. */ +/* */ +/* <Values> */ +/* ft_pixel_mode_none :: See @FT_PIXEL_MODE_NONE. */ +/* ft_pixel_mode_mono :: See @FT_PIXEL_MODE_MONO. */ +/* ft_pixel_mode_grays :: See @FT_PIXEL_MODE_GRAY. */ +/* ft_pixel_mode_pal2 :: See @FT_PIXEL_MODE_GRAY2. */ +/* ft_pixel_mode_pal4 :: See @FT_PIXEL_MODE_GRAY4. */ +/* */ #define ft_pixel_mode_none FT_PIXEL_MODE_NONE #define ft_pixel_mode_mono FT_PIXEL_MODE_MONO #define ft_pixel_mode_grays FT_PIXEL_MODE_GRAY #define ft_pixel_mode_pal2 FT_PIXEL_MODE_GRAY2 #define ft_pixel_mode_pal4 FT_PIXEL_MODE_GRAY4 - /* */ +/* */ #if 0 - /*************************************************************************/ - /* */ - /* <Enum> */ - /* FT_Palette_Mode */ - /* */ - /* <Description> */ - /* THIS TYPE IS DEPRECATED. DO NOT USE IT! */ - /* */ - /* An enumeration type to describe the format of a bitmap palette, */ - /* used with ft_pixel_mode_pal4 and ft_pixel_mode_pal8. */ - /* */ - /* <Values> */ - /* ft_palette_mode_rgb :: The palette is an array of 3-byte RGB */ - /* records. */ - /* */ - /* ft_palette_mode_rgba :: The palette is an array of 4-byte RGBA */ - /* records. */ - /* */ - /* <Note> */ - /* As ft_pixel_mode_pal2, pal4 and pal8 are currently unused by */ - /* FreeType, these types are not handled by the library itself. */ - /* */ - typedef enum FT_Palette_Mode_ - { +/*************************************************************************/ +/* */ +/* <Enum> */ +/* FT_Palette_Mode */ +/* */ +/* <Description> */ +/* THIS TYPE IS DEPRECATED. DO NOT USE IT! */ +/* */ +/* An enumeration type to describe the format of a bitmap palette, */ +/* used with ft_pixel_mode_pal4 and ft_pixel_mode_pal8. */ +/* */ +/* <Values> */ +/* ft_palette_mode_rgb :: The palette is an array of 3-byte RGB */ +/* records. */ +/* */ +/* ft_palette_mode_rgba :: The palette is an array of 4-byte RGBA */ +/* records. */ +/* */ +/* <Note> */ +/* As ft_pixel_mode_pal2, pal4 and pal8 are currently unused by */ +/* FreeType, these types are not handled by the library itself. */ +/* */ +typedef enum FT_Palette_Mode_ { ft_palette_mode_rgb = 0, ft_palette_mode_rgba, ft_palette_mode_max /* do not remove */ - } FT_Palette_Mode; +} FT_Palette_Mode; - /* */ +/* */ #endif - /*************************************************************************/ - /* */ - /* <Struct> */ - /* FT_Bitmap */ - /* */ - /* <Description> */ - /* A structure used to describe a bitmap or pixmap to the raster. */ - /* Note that we now manage pixmaps of various depths through the */ - /* `pixel_mode' field. */ - /* */ - /* <Fields> */ - /* rows :: The number of bitmap rows. */ - /* */ - /* width :: The number of pixels in bitmap row. */ - /* */ - /* pitch :: The pitch's absolute value is the number of bytes */ - /* taken by one bitmap row, including padding. */ - /* However, the pitch is positive when the bitmap has */ - /* a `down' flow, and negative when it has an `up' */ - /* flow. In all cases, the pitch is an offset to add */ - /* to a bitmap pointer in order to go down one row. */ - /* */ - /* Note that `padding' means the alignment of a */ - /* bitmap to a byte border, and FreeType functions */ - /* normally align to the smallest possible integer */ - /* value. */ - /* */ - /* For the B/W rasterizer, `pitch' is always an even */ - /* number. */ - /* */ - /* To change the pitch of a bitmap (say, to make it a */ - /* multiple of 4), use @FT_Bitmap_Convert. */ - /* Alternatively, you might use callback functions to */ - /* directly render to the application's surface; see */ - /* the file `example2.cpp' in the tutorial for a */ - /* demonstration. */ - /* */ - /* buffer :: A typeless pointer to the bitmap buffer. This */ - /* value should be aligned on 32-bit boundaries in */ - /* most cases. */ - /* */ - /* num_grays :: This field is only used with */ - /* @FT_PIXEL_MODE_GRAY; it gives the number of gray */ - /* levels used in the bitmap. */ - /* */ - /* pixel_mode :: The pixel mode, i.e., how pixel bits are stored. */ - /* See @FT_Pixel_Mode for possible values. */ - /* */ - /* palette_mode :: This field is intended for paletted pixel modes; */ - /* it indicates how the palette is stored. Not */ - /* used currently. */ - /* */ - /* palette :: A typeless pointer to the bitmap palette; this */ - /* field is intended for paletted pixel modes. Not */ - /* used currently. */ - /* */ - /* <Note> */ - /* For now, the only pixel modes supported by FreeType are mono and */ - /* grays. However, drivers might be added in the future to support */ - /* more `colorful' options. */ - /* */ - typedef struct FT_Bitmap_ - { +/*************************************************************************/ +/* */ +/* <Struct> */ +/* FT_Bitmap */ +/* */ +/* <Description> */ +/* A structure used to describe a bitmap or pixmap to the raster. */ +/* Note that we now manage pixmaps of various depths through the */ +/* `pixel_mode' field. */ +/* */ +/* <Fields> */ +/* rows :: The number of bitmap rows. */ +/* */ +/* width :: The number of pixels in bitmap row. */ +/* */ +/* pitch :: The pitch's absolute value is the number of bytes */ +/* taken by one bitmap row, including padding. */ +/* However, the pitch is positive when the bitmap has */ +/* a `down' flow, and negative when it has an `up' */ +/* flow. In all cases, the pitch is an offset to add */ +/* to a bitmap pointer in order to go down one row. */ +/* */ +/* Note that `padding' means the alignment of a */ +/* bitmap to a byte border, and FreeType functions */ +/* normally align to the smallest possible integer */ +/* value. */ +/* */ +/* For the B/W rasterizer, `pitch' is always an even */ +/* number. */ +/* */ +/* To change the pitch of a bitmap (say, to make it a */ +/* multiple of 4), use @FT_Bitmap_Convert. */ +/* Alternatively, you might use callback functions to */ +/* directly render to the application's surface; see */ +/* the file `example2.cpp' in the tutorial for a */ +/* demonstration. */ +/* */ +/* buffer :: A typeless pointer to the bitmap buffer. This */ +/* value should be aligned on 32-bit boundaries in */ +/* most cases. */ +/* */ +/* num_grays :: This field is only used with */ +/* @FT_PIXEL_MODE_GRAY; it gives the number of gray */ +/* levels used in the bitmap. */ +/* */ +/* pixel_mode :: The pixel mode, i.e., how pixel bits are stored. */ +/* See @FT_Pixel_Mode for possible values. */ +/* */ +/* palette_mode :: This field is intended for paletted pixel modes; */ +/* it indicates how the palette is stored. Not */ +/* used currently. */ +/* */ +/* palette :: A typeless pointer to the bitmap palette; this */ +/* field is intended for paletted pixel modes. Not */ +/* used currently. */ +/* */ +/* <Note> */ +/* For now, the only pixel modes supported by FreeType are mono and */ +/* grays. However, drivers might be added in the future to support */ +/* more `colorful' options. */ +/* */ +typedef struct FT_Bitmap_ { int rows; int width; int pitch; @@ -318,70 +313,69 @@ FT_BEGIN_HEADER char palette_mode; void* palette; - } FT_Bitmap; - - - /*************************************************************************/ - /* */ - /* <Section> */ - /* outline_processing */ - /* */ - /*************************************************************************/ - - - /*************************************************************************/ - /* */ - /* <Struct> */ - /* FT_Outline */ - /* */ - /* <Description> */ - /* This structure is used to describe an outline to the scan-line */ - /* converter. */ - /* */ - /* <Fields> */ - /* n_contours :: The number of contours in the outline. */ - /* */ - /* n_points :: The number of points in the outline. */ - /* */ - /* points :: A pointer to an array of `n_points' @FT_Vector */ - /* elements, giving the outline's point coordinates. */ - /* */ - /* tags :: A pointer to an array of `n_points' chars, giving */ - /* each outline point's type. */ - /* */ - /* If bit~0 is unset, the point is `off' the curve, */ - /* i.e., a Bézier control point, while it is `on' if */ - /* set. */ - /* */ - /* Bit~1 is meaningful for `off' points only. If set, */ - /* it indicates a third-order Bézier arc control point; */ - /* and a second-order control point if unset. */ - /* */ - /* If bit~2 is set, bits 5-7 contain the drop-out mode */ - /* (as defined in the OpenType specification; the value */ - /* is the same as the argument to the SCANMODE */ - /* instruction). */ - /* */ - /* Bits 3 and~4 are reserved for internal purposes. */ - /* */ - /* contours :: An array of `n_contours' shorts, giving the end */ - /* point of each contour within the outline. For */ - /* example, the first contour is defined by the points */ - /* `0' to `contours[0]', the second one is defined by */ - /* the points `contours[0]+1' to `contours[1]', etc. */ - /* */ - /* flags :: A set of bit flags used to characterize the outline */ - /* and give hints to the scan-converter and hinter on */ - /* how to convert/grid-fit it. See @FT_OUTLINE_FLAGS. */ - /* */ - /* <Note> */ - /* The B/W rasterizer only checks bit~2 in the `tags' array for the */ - /* first point of each contour. The drop-out mode as given with */ - /* @FT_OUTLINE_IGNORE_DROPOUTS, @FT_OUTLINE_SMART_DROPOUTS, and */ - /* @FT_OUTLINE_INCLUDE_STUBS in `flags' is then overridden. */ - /* */ - typedef struct FT_Outline_ - { +} FT_Bitmap; + + +/*************************************************************************/ +/* */ +/* <Section> */ +/* outline_processing */ +/* */ +/*************************************************************************/ + + +/*************************************************************************/ +/* */ +/* <Struct> */ +/* FT_Outline */ +/* */ +/* <Description> */ +/* This structure is used to describe an outline to the scan-line */ +/* converter. */ +/* */ +/* <Fields> */ +/* n_contours :: The number of contours in the outline. */ +/* */ +/* n_points :: The number of points in the outline. */ +/* */ +/* points :: A pointer to an array of `n_points' @FT_Vector */ +/* elements, giving the outline's point coordinates. */ +/* */ +/* tags :: A pointer to an array of `n_points' chars, giving */ +/* each outline point's type. */ +/* */ +/* If bit~0 is unset, the point is `off' the curve, */ +/* i.e., a Bézier control point, while it is `on' if */ +/* set. */ +/* */ +/* Bit~1 is meaningful for `off' points only. If set, */ +/* it indicates a third-order Bézier arc control point; */ +/* and a second-order control point if unset. */ +/* */ +/* If bit~2 is set, bits 5-7 contain the drop-out mode */ +/* (as defined in the OpenType specification; the value */ +/* is the same as the argument to the SCANMODE */ +/* instruction). */ +/* */ +/* Bits 3 and~4 are reserved for internal purposes. */ +/* */ +/* contours :: An array of `n_contours' shorts, giving the end */ +/* point of each contour within the outline. For */ +/* example, the first contour is defined by the points */ +/* `0' to `contours[0]', the second one is defined by */ +/* the points `contours[0]+1' to `contours[1]', etc. */ +/* */ +/* flags :: A set of bit flags used to characterize the outline */ +/* and give hints to the scan-converter and hinter on */ +/* how to convert/grid-fit it. See @FT_OUTLINE_FLAGS. */ +/* */ +/* <Note> */ +/* The B/W rasterizer only checks bit~2 in the `tags' array for the */ +/* first point of each contour. The drop-out mode as given with */ +/* @FT_OUTLINE_IGNORE_DROPOUTS, @FT_OUTLINE_SMART_DROPOUTS, and */ +/* @FT_OUTLINE_INCLUDE_STUBS in `flags' is then overridden. */ +/* */ +typedef struct FT_Outline_ { short n_contours; /* number of contours in glyph */ short n_points; /* number of points in the glyph */ @@ -391,86 +385,86 @@ FT_BEGIN_HEADER int flags; /* outline masks */ - } FT_Outline; +} FT_Outline; - /* Following limits must be consistent with */ - /* FT_Outline.{n_contours,n_points} */ +/* Following limits must be consistent with */ +/* FT_Outline.{n_contours,n_points} */ #define FT_OUTLINE_CONTOURS_MAX SHRT_MAX #define FT_OUTLINE_POINTS_MAX SHRT_MAX - /*************************************************************************/ - /* */ - /* <Enum> */ - /* FT_OUTLINE_FLAGS */ - /* */ - /* <Description> */ - /* A list of bit-field constants use for the flags in an outline's */ - /* `flags' field. */ - /* */ - /* <Values> */ - /* FT_OUTLINE_NONE :: */ - /* Value~0 is reserved. */ - /* */ - /* FT_OUTLINE_OWNER :: */ - /* If set, this flag indicates that the outline's field arrays */ - /* (i.e., `points', `flags', and `contours') are `owned' by the */ - /* outline object, and should thus be freed when it is destroyed. */ - /* */ - /* FT_OUTLINE_EVEN_ODD_FILL :: */ - /* By default, outlines are filled using the non-zero winding rule. */ - /* If set to 1, the outline will be filled using the even-odd fill */ - /* rule (only works with the smooth rasterizer). */ - /* */ - /* FT_OUTLINE_REVERSE_FILL :: */ - /* By default, outside contours of an outline are oriented in */ - /* clock-wise direction, as defined in the TrueType specification. */ - /* This flag is set if the outline uses the opposite direction */ - /* (typically for Type~1 fonts). This flag is ignored by the scan */ - /* converter. */ - /* */ - /* FT_OUTLINE_IGNORE_DROPOUTS :: */ - /* By default, the scan converter will try to detect drop-outs in */ - /* an outline and correct the glyph bitmap to ensure consistent */ - /* shape continuity. If set, this flag hints the scan-line */ - /* converter to ignore such cases. See below for more information. */ - /* */ - /* FT_OUTLINE_SMART_DROPOUTS :: */ - /* Select smart dropout control. If unset, use simple dropout */ - /* control. Ignored if @FT_OUTLINE_IGNORE_DROPOUTS is set. See */ - /* below for more information. */ - /* */ - /* FT_OUTLINE_INCLUDE_STUBS :: */ - /* If set, turn pixels on for `stubs', otherwise exclude them. */ - /* Ignored if @FT_OUTLINE_IGNORE_DROPOUTS is set. See below for */ - /* more information. */ - /* */ - /* FT_OUTLINE_HIGH_PRECISION :: */ - /* This flag indicates that the scan-line converter should try to */ - /* convert this outline to bitmaps with the highest possible */ - /* quality. It is typically set for small character sizes. Note */ - /* that this is only a hint that might be completely ignored by a */ - /* given scan-converter. */ - /* */ - /* FT_OUTLINE_SINGLE_PASS :: */ - /* This flag is set to force a given scan-converter to only use a */ - /* single pass over the outline to render a bitmap glyph image. */ - /* Normally, it is set for very large character sizes. It is only */ - /* a hint that might be completely ignored by a given */ - /* scan-converter. */ - /* */ - /* <Note> */ - /* The flags @FT_OUTLINE_IGNORE_DROPOUTS, @FT_OUTLINE_SMART_DROPOUTS, */ - /* and @FT_OUTLINE_INCLUDE_STUBS are ignored by the smooth */ - /* rasterizer. */ - /* */ - /* There exists a second mechanism to pass the drop-out mode to the */ - /* B/W rasterizer; see the `tags' field in @FT_Outline. */ - /* */ - /* Please refer to the description of the `SCANTYPE' instruction in */ - /* the OpenType specification (in file `ttinst1.doc') how simple */ - /* drop-outs, smart drop-outs, and stubs are defined. */ - /* */ +/*************************************************************************/ +/* */ +/* <Enum> */ +/* FT_OUTLINE_FLAGS */ +/* */ +/* <Description> */ +/* A list of bit-field constants use for the flags in an outline's */ +/* `flags' field. */ +/* */ +/* <Values> */ +/* FT_OUTLINE_NONE :: */ +/* Value~0 is reserved. */ +/* */ +/* FT_OUTLINE_OWNER :: */ +/* If set, this flag indicates that the outline's field arrays */ +/* (i.e., `points', `flags', and `contours') are `owned' by the */ +/* outline object, and should thus be freed when it is destroyed. */ +/* */ +/* FT_OUTLINE_EVEN_ODD_FILL :: */ +/* By default, outlines are filled using the non-zero winding rule. */ +/* If set to 1, the outline will be filled using the even-odd fill */ +/* rule (only works with the smooth rasterizer). */ +/* */ +/* FT_OUTLINE_REVERSE_FILL :: */ +/* By default, outside contours of an outline are oriented in */ +/* clock-wise direction, as defined in the TrueType specification. */ +/* This flag is set if the outline uses the opposite direction */ +/* (typically for Type~1 fonts). This flag is ignored by the scan */ +/* converter. */ +/* */ +/* FT_OUTLINE_IGNORE_DROPOUTS :: */ +/* By default, the scan converter will try to detect drop-outs in */ +/* an outline and correct the glyph bitmap to ensure consistent */ +/* shape continuity. If set, this flag hints the scan-line */ +/* converter to ignore such cases. See below for more information. */ +/* */ +/* FT_OUTLINE_SMART_DROPOUTS :: */ +/* Select smart dropout control. If unset, use simple dropout */ +/* control. Ignored if @FT_OUTLINE_IGNORE_DROPOUTS is set. See */ +/* below for more information. */ +/* */ +/* FT_OUTLINE_INCLUDE_STUBS :: */ +/* If set, turn pixels on for `stubs', otherwise exclude them. */ +/* Ignored if @FT_OUTLINE_IGNORE_DROPOUTS is set. See below for */ +/* more information. */ +/* */ +/* FT_OUTLINE_HIGH_PRECISION :: */ +/* This flag indicates that the scan-line converter should try to */ +/* convert this outline to bitmaps with the highest possible */ +/* quality. It is typically set for small character sizes. Note */ +/* that this is only a hint that might be completely ignored by a */ +/* given scan-converter. */ +/* */ +/* FT_OUTLINE_SINGLE_PASS :: */ +/* This flag is set to force a given scan-converter to only use a */ +/* single pass over the outline to render a bitmap glyph image. */ +/* Normally, it is set for very large character sizes. It is only */ +/* a hint that might be completely ignored by a given */ +/* scan-converter. */ +/* */ +/* <Note> */ +/* The flags @FT_OUTLINE_IGNORE_DROPOUTS, @FT_OUTLINE_SMART_DROPOUTS, */ +/* and @FT_OUTLINE_INCLUDE_STUBS are ignored by the smooth */ +/* rasterizer. */ +/* */ +/* There exists a second mechanism to pass the drop-out mode to the */ +/* B/W rasterizer; see the `tags' field in @FT_Outline. */ +/* */ +/* Please refer to the description of the `SCANTYPE' instruction in */ +/* the OpenType specification (in file `ttinst1.doc') how simple */ +/* drop-outs, smart drop-outs, and stubs are defined. */ +/* */ #define FT_OUTLINE_NONE 0x0 #define FT_OUTLINE_OWNER 0x1 #define FT_OUTLINE_EVEN_ODD_FILL 0x2 @@ -483,24 +477,24 @@ FT_BEGIN_HEADER #define FT_OUTLINE_SINGLE_PASS 0x200 - /************************************************************************* - * - * @enum: - * ft_outline_flags - * - * @description: - * These constants are deprecated. Please use the corresponding - * @FT_OUTLINE_FLAGS values. - * - * @values: - * ft_outline_none :: See @FT_OUTLINE_NONE. - * ft_outline_owner :: See @FT_OUTLINE_OWNER. - * ft_outline_even_odd_fill :: See @FT_OUTLINE_EVEN_ODD_FILL. - * ft_outline_reverse_fill :: See @FT_OUTLINE_REVERSE_FILL. - * ft_outline_ignore_dropouts :: See @FT_OUTLINE_IGNORE_DROPOUTS. - * ft_outline_high_precision :: See @FT_OUTLINE_HIGH_PRECISION. - * ft_outline_single_pass :: See @FT_OUTLINE_SINGLE_PASS. - */ +/************************************************************************* + * + * @enum: + * ft_outline_flags + * + * @description: + * These constants are deprecated. Please use the corresponding + * @FT_OUTLINE_FLAGS values. + * + * @values: + * ft_outline_none :: See @FT_OUTLINE_NONE. + * ft_outline_owner :: See @FT_OUTLINE_OWNER. + * ft_outline_even_odd_fill :: See @FT_OUTLINE_EVEN_ODD_FILL. + * ft_outline_reverse_fill :: See @FT_OUTLINE_REVERSE_FILL. + * ft_outline_ignore_dropouts :: See @FT_OUTLINE_IGNORE_DROPOUTS. + * ft_outline_high_precision :: See @FT_OUTLINE_HIGH_PRECISION. + * ft_outline_single_pass :: See @FT_OUTLINE_SINGLE_PASS. + */ #define ft_outline_none FT_OUTLINE_NONE #define ft_outline_owner FT_OUTLINE_OWNER #define ft_outline_even_odd_fill FT_OUTLINE_EVEN_ODD_FILL @@ -509,7 +503,7 @@ FT_BEGIN_HEADER #define ft_outline_high_precision FT_OUTLINE_HIGH_PRECISION #define ft_outline_single_pass FT_OUTLINE_SINGLE_PASS - /* */ +/* */ #define FT_CURVE_TAG( flag ) ( flag & 3 ) @@ -532,164 +526,163 @@ FT_BEGIN_HEADER #define FT_Curve_Tag_Touch_Y FT_CURVE_TAG_TOUCH_Y - /*************************************************************************/ - /* */ - /* <FuncType> */ - /* FT_Outline_MoveToFunc */ - /* */ - /* <Description> */ - /* A function pointer type used to describe the signature of a `move */ - /* to' function during outline walking/decomposition. */ - /* */ - /* A `move to' is emitted to start a new contour in an outline. */ - /* */ - /* <Input> */ - /* to :: A pointer to the target point of the `move to'. */ - /* */ - /* user :: A typeless pointer which is passed from the caller of the */ - /* decomposition function. */ - /* */ - /* <Return> */ - /* Error code. 0~means success. */ - /* */ - typedef int - (*FT_Outline_MoveToFunc)( const FT_Vector* to, - void* user ); +/*************************************************************************/ +/* */ +/* <FuncType> */ +/* FT_Outline_MoveToFunc */ +/* */ +/* <Description> */ +/* A function pointer type used to describe the signature of a `move */ +/* to' function during outline walking/decomposition. */ +/* */ +/* A `move to' is emitted to start a new contour in an outline. */ +/* */ +/* <Input> */ +/* to :: A pointer to the target point of the `move to'. */ +/* */ +/* user :: A typeless pointer which is passed from the caller of the */ +/* decomposition function. */ +/* */ +/* <Return> */ +/* Error code. 0~means success. */ +/* */ +typedef int +(*FT_Outline_MoveToFunc)( const FT_Vector* to, + void* user ); #define FT_Outline_MoveTo_Func FT_Outline_MoveToFunc - /*************************************************************************/ - /* */ - /* <FuncType> */ - /* FT_Outline_LineToFunc */ - /* */ - /* <Description> */ - /* A function pointer type used to describe the signature of a `line */ - /* to' function during outline walking/decomposition. */ - /* */ - /* A `line to' is emitted to indicate a segment in the outline. */ - /* */ - /* <Input> */ - /* to :: A pointer to the target point of the `line to'. */ - /* */ - /* user :: A typeless pointer which is passed from the caller of the */ - /* decomposition function. */ - /* */ - /* <Return> */ - /* Error code. 0~means success. */ - /* */ - typedef int - (*FT_Outline_LineToFunc)( const FT_Vector* to, - void* user ); +/*************************************************************************/ +/* */ +/* <FuncType> */ +/* FT_Outline_LineToFunc */ +/* */ +/* <Description> */ +/* A function pointer type used to describe the signature of a `line */ +/* to' function during outline walking/decomposition. */ +/* */ +/* A `line to' is emitted to indicate a segment in the outline. */ +/* */ +/* <Input> */ +/* to :: A pointer to the target point of the `line to'. */ +/* */ +/* user :: A typeless pointer which is passed from the caller of the */ +/* decomposition function. */ +/* */ +/* <Return> */ +/* Error code. 0~means success. */ +/* */ +typedef int +(*FT_Outline_LineToFunc)( const FT_Vector* to, + void* user ); #define FT_Outline_LineTo_Func FT_Outline_LineToFunc - /*************************************************************************/ - /* */ - /* <FuncType> */ - /* FT_Outline_ConicToFunc */ - /* */ - /* <Description> */ - /* A function pointer type used to describe the signature of a `conic */ - /* to' function during outline walking or decomposition. */ - /* */ - /* A `conic to' is emitted to indicate a second-order Bézier arc in */ - /* the outline. */ - /* */ - /* <Input> */ - /* control :: An intermediate control point between the last position */ - /* and the new target in `to'. */ - /* */ - /* to :: A pointer to the target end point of the conic arc. */ - /* */ - /* user :: A typeless pointer which is passed from the caller of */ - /* the decomposition function. */ - /* */ - /* <Return> */ - /* Error code. 0~means success. */ - /* */ - typedef int - (*FT_Outline_ConicToFunc)( const FT_Vector* control, - const FT_Vector* to, - void* user ); +/*************************************************************************/ +/* */ +/* <FuncType> */ +/* FT_Outline_ConicToFunc */ +/* */ +/* <Description> */ +/* A function pointer type used to describe the signature of a `conic */ +/* to' function during outline walking or decomposition. */ +/* */ +/* A `conic to' is emitted to indicate a second-order Bézier arc in */ +/* the outline. */ +/* */ +/* <Input> */ +/* control :: An intermediate control point between the last position */ +/* and the new target in `to'. */ +/* */ +/* to :: A pointer to the target end point of the conic arc. */ +/* */ +/* user :: A typeless pointer which is passed from the caller of */ +/* the decomposition function. */ +/* */ +/* <Return> */ +/* Error code. 0~means success. */ +/* */ +typedef int +(*FT_Outline_ConicToFunc)( const FT_Vector* control, + const FT_Vector* to, + void* user ); #define FT_Outline_ConicTo_Func FT_Outline_ConicToFunc - /*************************************************************************/ - /* */ - /* <FuncType> */ - /* FT_Outline_CubicToFunc */ - /* */ - /* <Description> */ - /* A function pointer type used to describe the signature of a `cubic */ - /* to' function during outline walking or decomposition. */ - /* */ - /* A `cubic to' is emitted to indicate a third-order Bézier arc. */ - /* */ - /* <Input> */ - /* control1 :: A pointer to the first Bézier control point. */ - /* */ - /* control2 :: A pointer to the second Bézier control point. */ - /* */ - /* to :: A pointer to the target end point. */ - /* */ - /* user :: A typeless pointer which is passed from the caller of */ - /* the decomposition function. */ - /* */ - /* <Return> */ - /* Error code. 0~means success. */ - /* */ - typedef int - (*FT_Outline_CubicToFunc)( const FT_Vector* control1, - const FT_Vector* control2, - const FT_Vector* to, - void* user ); +/*************************************************************************/ +/* */ +/* <FuncType> */ +/* FT_Outline_CubicToFunc */ +/* */ +/* <Description> */ +/* A function pointer type used to describe the signature of a `cubic */ +/* to' function during outline walking or decomposition. */ +/* */ +/* A `cubic to' is emitted to indicate a third-order Bézier arc. */ +/* */ +/* <Input> */ +/* control1 :: A pointer to the first Bézier control point. */ +/* */ +/* control2 :: A pointer to the second Bézier control point. */ +/* */ +/* to :: A pointer to the target end point. */ +/* */ +/* user :: A typeless pointer which is passed from the caller of */ +/* the decomposition function. */ +/* */ +/* <Return> */ +/* Error code. 0~means success. */ +/* */ +typedef int +(*FT_Outline_CubicToFunc)( const FT_Vector* control1, + const FT_Vector* control2, + const FT_Vector* to, + void* user ); #define FT_Outline_CubicTo_Func FT_Outline_CubicToFunc - /*************************************************************************/ - /* */ - /* <Struct> */ - /* FT_Outline_Funcs */ - /* */ - /* <Description> */ - /* A structure to hold various function pointers used during outline */ - /* decomposition in order to emit segments, conic, and cubic Béziers. */ - /* */ - /* <Fields> */ - /* move_to :: The `move to' emitter. */ - /* */ - /* line_to :: The segment emitter. */ - /* */ - /* conic_to :: The second-order Bézier arc emitter. */ - /* */ - /* cubic_to :: The third-order Bézier arc emitter. */ - /* */ - /* shift :: The shift that is applied to coordinates before they */ - /* are sent to the emitter. */ - /* */ - /* delta :: The delta that is applied to coordinates before they */ - /* are sent to the emitter, but after the shift. */ - /* */ - /* <Note> */ - /* The point coordinates sent to the emitters are the transformed */ - /* version of the original coordinates (this is important for high */ - /* accuracy during scan-conversion). The transformation is simple: */ - /* */ - /* { */ - /* x' = (x << shift) - delta */ - /* y' = (x << shift) - delta */ - /* } */ - /* */ - /* Set the values of `shift' and `delta' to~0 to get the original */ - /* point coordinates. */ - /* */ - typedef struct FT_Outline_Funcs_ - { +/*************************************************************************/ +/* */ +/* <Struct> */ +/* FT_Outline_Funcs */ +/* */ +/* <Description> */ +/* A structure to hold various function pointers used during outline */ +/* decomposition in order to emit segments, conic, and cubic Béziers. */ +/* */ +/* <Fields> */ +/* move_to :: The `move to' emitter. */ +/* */ +/* line_to :: The segment emitter. */ +/* */ +/* conic_to :: The second-order Bézier arc emitter. */ +/* */ +/* cubic_to :: The third-order Bézier arc emitter. */ +/* */ +/* shift :: The shift that is applied to coordinates before they */ +/* are sent to the emitter. */ +/* */ +/* delta :: The delta that is applied to coordinates before they */ +/* are sent to the emitter, but after the shift. */ +/* */ +/* <Note> */ +/* The point coordinates sent to the emitters are the transformed */ +/* version of the original coordinates (this is important for high */ +/* accuracy during scan-conversion). The transformation is simple: */ +/* */ +/* { */ +/* x' = (x << shift) - delta */ +/* y' = (x << shift) - delta */ +/* } */ +/* */ +/* Set the values of `shift' and `delta' to~0 to get the original */ +/* point coordinates. */ +/* */ +typedef struct FT_Outline_Funcs_ { FT_Outline_MoveToFunc move_to; FT_Outline_LineToFunc line_to; FT_Outline_ConicToFunc conic_to; @@ -698,36 +691,36 @@ FT_BEGIN_HEADER int shift; FT_Pos delta; - } FT_Outline_Funcs; - - - /*************************************************************************/ - /* */ - /* <Section> */ - /* basic_types */ - /* */ - /*************************************************************************/ - - - /*************************************************************************/ - /* */ - /* <Macro> */ - /* FT_IMAGE_TAG */ - /* */ - /* <Description> */ - /* This macro converts four-letter tags to an unsigned long type. */ - /* */ - /* <Note> */ - /* Since many 16-bit compilers don't like 32-bit enumerations, you */ - /* should redefine this macro in case of problems to something like */ - /* this: */ - /* */ - /* { */ - /* #define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 ) value */ - /* } */ - /* */ - /* to get a simple enumeration without assigning special numbers. */ - /* */ +} FT_Outline_Funcs; + + +/*************************************************************************/ +/* */ +/* <Section> */ +/* basic_types */ +/* */ +/*************************************************************************/ + + +/*************************************************************************/ +/* */ +/* <Macro> */ +/* FT_IMAGE_TAG */ +/* */ +/* <Description> */ +/* This macro converts four-letter tags to an unsigned long type. */ +/* */ +/* <Note> */ +/* Since many 16-bit compilers don't like 32-bit enumerations, you */ +/* should redefine this macro in case of problems to something like */ +/* this: */ +/* */ +/* { */ +/* #define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 ) value */ +/* } */ +/* */ +/* to get a simple enumeration without assigning special numbers. */ +/* */ #ifndef FT_IMAGE_TAG #define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 ) \ value = ( ( (unsigned long)_x1 << 24 ) | \ @@ -737,46 +730,45 @@ FT_BEGIN_HEADER #endif /* FT_IMAGE_TAG */ - /*************************************************************************/ - /* */ - /* <Enum> */ - /* FT_Glyph_Format */ - /* */ - /* <Description> */ - /* An enumeration type used to describe the format of a given glyph */ - /* image. Note that this version of FreeType only supports two image */ - /* formats, even though future font drivers will be able to register */ - /* their own format. */ - /* */ - /* <Values> */ - /* FT_GLYPH_FORMAT_NONE :: */ - /* The value~0 is reserved. */ - /* */ - /* FT_GLYPH_FORMAT_COMPOSITE :: */ - /* The glyph image is a composite of several other images. This */ - /* format is _only_ used with @FT_LOAD_NO_RECURSE, and is used to */ - /* report compound glyphs (like accented characters). */ - /* */ - /* FT_GLYPH_FORMAT_BITMAP :: */ - /* The glyph image is a bitmap, and can be described as an */ - /* @FT_Bitmap. You generally need to access the `bitmap' field of */ - /* the @FT_GlyphSlotRec structure to read it. */ - /* */ - /* FT_GLYPH_FORMAT_OUTLINE :: */ - /* The glyph image is a vectorial outline made of line segments */ - /* and Bézier arcs; it can be described as an @FT_Outline; you */ - /* generally want to access the `outline' field of the */ - /* @FT_GlyphSlotRec structure to read it. */ - /* */ - /* FT_GLYPH_FORMAT_PLOTTER :: */ - /* The glyph image is a vectorial path with no inside and outside */ - /* contours. Some Type~1 fonts, like those in the Hershey family, */ - /* contain glyphs in this format. These are described as */ - /* @FT_Outline, but FreeType isn't currently capable of rendering */ - /* them correctly. */ - /* */ - typedef enum FT_Glyph_Format_ - { +/*************************************************************************/ +/* */ +/* <Enum> */ +/* FT_Glyph_Format */ +/* */ +/* <Description> */ +/* An enumeration type used to describe the format of a given glyph */ +/* image. Note that this version of FreeType only supports two image */ +/* formats, even though future font drivers will be able to register */ +/* their own format. */ +/* */ +/* <Values> */ +/* FT_GLYPH_FORMAT_NONE :: */ +/* The value~0 is reserved. */ +/* */ +/* FT_GLYPH_FORMAT_COMPOSITE :: */ +/* The glyph image is a composite of several other images. This */ +/* format is _only_ used with @FT_LOAD_NO_RECURSE, and is used to */ +/* report compound glyphs (like accented characters). */ +/* */ +/* FT_GLYPH_FORMAT_BITMAP :: */ +/* The glyph image is a bitmap, and can be described as an */ +/* @FT_Bitmap. You generally need to access the `bitmap' field of */ +/* the @FT_GlyphSlotRec structure to read it. */ +/* */ +/* FT_GLYPH_FORMAT_OUTLINE :: */ +/* The glyph image is a vectorial outline made of line segments */ +/* and Bézier arcs; it can be described as an @FT_Outline; you */ +/* generally want to access the `outline' field of the */ +/* @FT_GlyphSlotRec structure to read it. */ +/* */ +/* FT_GLYPH_FORMAT_PLOTTER :: */ +/* The glyph image is a vectorial path with no inside and outside */ +/* contours. Some Type~1 fonts, like those in the Hershey family, */ +/* contain glyphs in this format. These are described as */ +/* @FT_Outline, but FreeType isn't currently capable of rendering */ +/* them correctly. */ +/* */ +typedef enum FT_Glyph_Format_ { FT_IMAGE_TAG( FT_GLYPH_FORMAT_NONE, 0, 0, 0, 0 ), FT_IMAGE_TAG( FT_GLYPH_FORMAT_COMPOSITE, 'c', 'o', 'm', 'p' ), @@ -784,25 +776,25 @@ FT_BEGIN_HEADER FT_IMAGE_TAG( FT_GLYPH_FORMAT_OUTLINE, 'o', 'u', 't', 'l' ), FT_IMAGE_TAG( FT_GLYPH_FORMAT_PLOTTER, 'p', 'l', 'o', 't' ) - } FT_Glyph_Format; - - - /*************************************************************************/ - /* */ - /* <Enum> */ - /* ft_glyph_format_xxx */ - /* */ - /* <Description> */ - /* A list of deprecated constants. Use the corresponding */ - /* @FT_Glyph_Format values instead. */ - /* */ - /* <Values> */ - /* ft_glyph_format_none :: See @FT_GLYPH_FORMAT_NONE. */ - /* ft_glyph_format_composite :: See @FT_GLYPH_FORMAT_COMPOSITE. */ - /* ft_glyph_format_bitmap :: See @FT_GLYPH_FORMAT_BITMAP. */ - /* ft_glyph_format_outline :: See @FT_GLYPH_FORMAT_OUTLINE. */ - /* ft_glyph_format_plotter :: See @FT_GLYPH_FORMAT_PLOTTER. */ - /* */ +} FT_Glyph_Format; + + +/*************************************************************************/ +/* */ +/* <Enum> */ +/* ft_glyph_format_xxx */ +/* */ +/* <Description> */ +/* A list of deprecated constants. Use the corresponding */ +/* @FT_Glyph_Format values instead. */ +/* */ +/* <Values> */ +/* ft_glyph_format_none :: See @FT_GLYPH_FORMAT_NONE. */ +/* ft_glyph_format_composite :: See @FT_GLYPH_FORMAT_COMPOSITE. */ +/* ft_glyph_format_bitmap :: See @FT_GLYPH_FORMAT_BITMAP. */ +/* ft_glyph_format_outline :: See @FT_GLYPH_FORMAT_OUTLINE. */ +/* ft_glyph_format_plotter :: See @FT_GLYPH_FORMAT_PLOTTER. */ +/* */ #define ft_glyph_format_none FT_GLYPH_FORMAT_NONE #define ft_glyph_format_composite FT_GLYPH_FORMAT_COMPOSITE #define ft_glyph_format_bitmap FT_GLYPH_FORMAT_BITMAP @@ -810,299 +802,297 @@ FT_BEGIN_HEADER #define ft_glyph_format_plotter FT_GLYPH_FORMAT_PLOTTER - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** R A S T E R D E F I N I T I O N S *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - - - /*************************************************************************/ - /* */ - /* A raster is a scan converter, in charge of rendering an outline into */ - /* a a bitmap. This section contains the public API for rasters. */ - /* */ - /* Note that in FreeType 2, all rasters are now encapsulated within */ - /* specific modules called `renderers'. See `freetype/ftrender.h' for */ - /* more details on renderers. */ - /* */ - /*************************************************************************/ - - - /*************************************************************************/ - /* */ - /* <Section> */ - /* raster */ - /* */ - /* <Title> */ - /* Scanline Converter */ - /* */ - /* <Abstract> */ - /* How vectorial outlines are converted into bitmaps and pixmaps. */ - /* */ - /* <Description> */ - /* This section contains technical definitions. */ - /* */ - /*************************************************************************/ - - - /*************************************************************************/ - /* */ - /* <Type> */ - /* FT_Raster */ - /* */ - /* <Description> */ - /* A handle (pointer) to a raster object. Each object can be used */ - /* independently to convert an outline into a bitmap or pixmap. */ - /* */ - typedef struct FT_RasterRec_* FT_Raster; - - - /*************************************************************************/ - /* */ - /* <Struct> */ - /* FT_Span */ - /* */ - /* <Description> */ - /* A structure used to model a single span of gray (or black) pixels */ - /* when rendering a monochrome or anti-aliased bitmap. */ - /* */ - /* <Fields> */ - /* x :: The span's horizontal start position. */ - /* */ - /* len :: The span's length in pixels. */ - /* */ - /* coverage :: The span color/coverage, ranging from 0 (background) */ - /* to 255 (foreground). Only used for anti-aliased */ - /* rendering. */ - /* */ - /* <Note> */ - /* This structure is used by the span drawing callback type named */ - /* @FT_SpanFunc which takes the y~coordinate of the span as a */ - /* a parameter. */ - /* */ - /* The coverage value is always between 0 and 255. If you want less */ - /* gray values, the callback function has to reduce them. */ - /* */ - typedef struct FT_Span_ - { +/*************************************************************************/ +/*************************************************************************/ +/*************************************************************************/ +/***** *****/ +/***** R A S T E R D E F I N I T I O N S *****/ +/***** *****/ +/*************************************************************************/ +/*************************************************************************/ +/*************************************************************************/ + + +/*************************************************************************/ +/* */ +/* A raster is a scan converter, in charge of rendering an outline into */ +/* a a bitmap. This section contains the public API for rasters. */ +/* */ +/* Note that in FreeType 2, all rasters are now encapsulated within */ +/* specific modules called `renderers'. See `freetype/ftrender.h' for */ +/* more details on renderers. */ +/* */ +/*************************************************************************/ + + +/*************************************************************************/ +/* */ +/* <Section> */ +/* raster */ +/* */ +/* <Title> */ +/* Scanline Converter */ +/* */ +/* <Abstract> */ +/* How vectorial outlines are converted into bitmaps and pixmaps. */ +/* */ +/* <Description> */ +/* This section contains technical definitions. */ +/* */ +/*************************************************************************/ + + +/*************************************************************************/ +/* */ +/* <Type> */ +/* FT_Raster */ +/* */ +/* <Description> */ +/* A handle (pointer) to a raster object. Each object can be used */ +/* independently to convert an outline into a bitmap or pixmap. */ +/* */ +typedef struct FT_RasterRec_* FT_Raster; + + +/*************************************************************************/ +/* */ +/* <Struct> */ +/* FT_Span */ +/* */ +/* <Description> */ +/* A structure used to model a single span of gray (or black) pixels */ +/* when rendering a monochrome or anti-aliased bitmap. */ +/* */ +/* <Fields> */ +/* x :: The span's horizontal start position. */ +/* */ +/* len :: The span's length in pixels. */ +/* */ +/* coverage :: The span color/coverage, ranging from 0 (background) */ +/* to 255 (foreground). Only used for anti-aliased */ +/* rendering. */ +/* */ +/* <Note> */ +/* This structure is used by the span drawing callback type named */ +/* @FT_SpanFunc which takes the y~coordinate of the span as a */ +/* a parameter. */ +/* */ +/* The coverage value is always between 0 and 255. If you want less */ +/* gray values, the callback function has to reduce them. */ +/* */ +typedef struct FT_Span_ { short x; unsigned short len; unsigned char coverage; - } FT_Span; - - - /*************************************************************************/ - /* */ - /* <FuncType> */ - /* FT_SpanFunc */ - /* */ - /* <Description> */ - /* A function used as a call-back by the anti-aliased renderer in */ - /* order to let client applications draw themselves the gray pixel */ - /* spans on each scan line. */ - /* */ - /* <Input> */ - /* y :: The scanline's y~coordinate. */ - /* */ - /* count :: The number of spans to draw on this scanline. */ - /* */ - /* spans :: A table of `count' spans to draw on the scanline. */ - /* */ - /* user :: User-supplied data that is passed to the callback. */ - /* */ - /* <Note> */ - /* This callback allows client applications to directly render the */ - /* gray spans of the anti-aliased bitmap to any kind of surfaces. */ - /* */ - /* This can be used to write anti-aliased outlines directly to a */ - /* given background bitmap, and even perform translucency. */ - /* */ - /* Note that the `count' field cannot be greater than a fixed value */ - /* defined by the `FT_MAX_GRAY_SPANS' configuration macro in */ - /* `ftoption.h'. By default, this value is set to~32, which means */ - /* that if there are more than 32~spans on a given scanline, the */ - /* callback is called several times with the same `y' parameter in */ - /* order to draw all callbacks. */ - /* */ - /* Otherwise, the callback is only called once per scan-line, and */ - /* only for those scanlines that do have `gray' pixels on them. */ - /* */ - typedef void - (*FT_SpanFunc)( int y, - int count, - const FT_Span* spans, - void* user ); +} FT_Span; + + +/*************************************************************************/ +/* */ +/* <FuncType> */ +/* FT_SpanFunc */ +/* */ +/* <Description> */ +/* A function used as a call-back by the anti-aliased renderer in */ +/* order to let client applications draw themselves the gray pixel */ +/* spans on each scan line. */ +/* */ +/* <Input> */ +/* y :: The scanline's y~coordinate. */ +/* */ +/* count :: The number of spans to draw on this scanline. */ +/* */ +/* spans :: A table of `count' spans to draw on the scanline. */ +/* */ +/* user :: User-supplied data that is passed to the callback. */ +/* */ +/* <Note> */ +/* This callback allows client applications to directly render the */ +/* gray spans of the anti-aliased bitmap to any kind of surfaces. */ +/* */ +/* This can be used to write anti-aliased outlines directly to a */ +/* given background bitmap, and even perform translucency. */ +/* */ +/* Note that the `count' field cannot be greater than a fixed value */ +/* defined by the `FT_MAX_GRAY_SPANS' configuration macro in */ +/* `ftoption.h'. By default, this value is set to~32, which means */ +/* that if there are more than 32~spans on a given scanline, the */ +/* callback is called several times with the same `y' parameter in */ +/* order to draw all callbacks. */ +/* */ +/* Otherwise, the callback is only called once per scan-line, and */ +/* only for those scanlines that do have `gray' pixels on them. */ +/* */ +typedef void +(*FT_SpanFunc)( int y, + int count, + const FT_Span* spans, + void* user ); #define FT_Raster_Span_Func FT_SpanFunc - /*************************************************************************/ - /* */ - /* <FuncType> */ - /* FT_Raster_BitTest_Func */ - /* */ - /* <Description> */ - /* THIS TYPE IS DEPRECATED. DO NOT USE IT. */ - /* */ - /* A function used as a call-back by the monochrome scan-converter */ - /* to test whether a given target pixel is already set to the drawing */ - /* `color'. These tests are crucial to implement drop-out control */ - /* per-se the TrueType spec. */ - /* */ - /* <Input> */ - /* y :: The pixel's y~coordinate. */ - /* */ - /* x :: The pixel's x~coordinate. */ - /* */ - /* user :: User-supplied data that is passed to the callback. */ - /* */ - /* <Return> */ - /* 1~if the pixel is `set', 0~otherwise. */ - /* */ - typedef int - (*FT_Raster_BitTest_Func)( int y, - int x, - void* user ); - - - /*************************************************************************/ - /* */ - /* <FuncType> */ - /* FT_Raster_BitSet_Func */ - /* */ - /* <Description> */ - /* THIS TYPE IS DEPRECATED. DO NOT USE IT. */ - /* */ - /* A function used as a call-back by the monochrome scan-converter */ - /* to set an individual target pixel. This is crucial to implement */ - /* drop-out control according to the TrueType specification. */ - /* */ - /* <Input> */ - /* y :: The pixel's y~coordinate. */ - /* */ - /* x :: The pixel's x~coordinate. */ - /* */ - /* user :: User-supplied data that is passed to the callback. */ - /* */ - /* <Return> */ - /* 1~if the pixel is `set', 0~otherwise. */ - /* */ - typedef void - (*FT_Raster_BitSet_Func)( int y, - int x, - void* user ); - - - /*************************************************************************/ - /* */ - /* <Enum> */ - /* FT_RASTER_FLAG_XXX */ - /* */ - /* <Description> */ - /* A list of bit flag constants as used in the `flags' field of a */ - /* @FT_Raster_Params structure. */ - /* */ - /* <Values> */ - /* FT_RASTER_FLAG_DEFAULT :: This value is 0. */ - /* */ - /* FT_RASTER_FLAG_AA :: This flag is set to indicate that an */ - /* anti-aliased glyph image should be */ - /* generated. Otherwise, it will be */ - /* monochrome (1-bit). */ - /* */ - /* FT_RASTER_FLAG_DIRECT :: This flag is set to indicate direct */ - /* rendering. In this mode, client */ - /* applications must provide their own span */ - /* callback. This lets them directly */ - /* draw or compose over an existing bitmap. */ - /* If this bit is not set, the target */ - /* pixmap's buffer _must_ be zeroed before */ - /* rendering. */ - /* */ - /* Note that for now, direct rendering is */ - /* only possible with anti-aliased glyphs. */ - /* */ - /* FT_RASTER_FLAG_CLIP :: This flag is only used in direct */ - /* rendering mode. If set, the output will */ - /* be clipped to a box specified in the */ - /* `clip_box' field of the */ - /* @FT_Raster_Params structure. */ - /* */ - /* Note that by default, the glyph bitmap */ - /* is clipped to the target pixmap, except */ - /* in direct rendering mode where all spans */ - /* are generated if no clipping box is set. */ - /* */ +/*************************************************************************/ +/* */ +/* <FuncType> */ +/* FT_Raster_BitTest_Func */ +/* */ +/* <Description> */ +/* THIS TYPE IS DEPRECATED. DO NOT USE IT. */ +/* */ +/* A function used as a call-back by the monochrome scan-converter */ +/* to test whether a given target pixel is already set to the drawing */ +/* `color'. These tests are crucial to implement drop-out control */ +/* per-se the TrueType spec. */ +/* */ +/* <Input> */ +/* y :: The pixel's y~coordinate. */ +/* */ +/* x :: The pixel's x~coordinate. */ +/* */ +/* user :: User-supplied data that is passed to the callback. */ +/* */ +/* <Return> */ +/* 1~if the pixel is `set', 0~otherwise. */ +/* */ +typedef int +(*FT_Raster_BitTest_Func)( int y, + int x, + void* user ); + + +/*************************************************************************/ +/* */ +/* <FuncType> */ +/* FT_Raster_BitSet_Func */ +/* */ +/* <Description> */ +/* THIS TYPE IS DEPRECATED. DO NOT USE IT. */ +/* */ +/* A function used as a call-back by the monochrome scan-converter */ +/* to set an individual target pixel. This is crucial to implement */ +/* drop-out control according to the TrueType specification. */ +/* */ +/* <Input> */ +/* y :: The pixel's y~coordinate. */ +/* */ +/* x :: The pixel's x~coordinate. */ +/* */ +/* user :: User-supplied data that is passed to the callback. */ +/* */ +/* <Return> */ +/* 1~if the pixel is `set', 0~otherwise. */ +/* */ +typedef void +(*FT_Raster_BitSet_Func)( int y, + int x, + void* user ); + + +/*************************************************************************/ +/* */ +/* <Enum> */ +/* FT_RASTER_FLAG_XXX */ +/* */ +/* <Description> */ +/* A list of bit flag constants as used in the `flags' field of a */ +/* @FT_Raster_Params structure. */ +/* */ +/* <Values> */ +/* FT_RASTER_FLAG_DEFAULT :: This value is 0. */ +/* */ +/* FT_RASTER_FLAG_AA :: This flag is set to indicate that an */ +/* anti-aliased glyph image should be */ +/* generated. Otherwise, it will be */ +/* monochrome (1-bit). */ +/* */ +/* FT_RASTER_FLAG_DIRECT :: This flag is set to indicate direct */ +/* rendering. In this mode, client */ +/* applications must provide their own span */ +/* callback. This lets them directly */ +/* draw or compose over an existing bitmap. */ +/* If this bit is not set, the target */ +/* pixmap's buffer _must_ be zeroed before */ +/* rendering. */ +/* */ +/* Note that for now, direct rendering is */ +/* only possible with anti-aliased glyphs. */ +/* */ +/* FT_RASTER_FLAG_CLIP :: This flag is only used in direct */ +/* rendering mode. If set, the output will */ +/* be clipped to a box specified in the */ +/* `clip_box' field of the */ +/* @FT_Raster_Params structure. */ +/* */ +/* Note that by default, the glyph bitmap */ +/* is clipped to the target pixmap, except */ +/* in direct rendering mode where all spans */ +/* are generated if no clipping box is set. */ +/* */ #define FT_RASTER_FLAG_DEFAULT 0x0 #define FT_RASTER_FLAG_AA 0x1 #define FT_RASTER_FLAG_DIRECT 0x2 #define FT_RASTER_FLAG_CLIP 0x4 - /* deprecated */ +/* deprecated */ #define ft_raster_flag_default FT_RASTER_FLAG_DEFAULT #define ft_raster_flag_aa FT_RASTER_FLAG_AA #define ft_raster_flag_direct FT_RASTER_FLAG_DIRECT #define ft_raster_flag_clip FT_RASTER_FLAG_CLIP - /*************************************************************************/ - /* */ - /* <Struct> */ - /* FT_Raster_Params */ - /* */ - /* <Description> */ - /* A structure to hold the arguments used by a raster's render */ - /* function. */ - /* */ - /* <Fields> */ - /* target :: The target bitmap. */ - /* */ - /* source :: A pointer to the source glyph image (e.g., an */ - /* @FT_Outline). */ - /* */ - /* flags :: The rendering flags. */ - /* */ - /* gray_spans :: The gray span drawing callback. */ - /* */ - /* black_spans :: The black span drawing callback. UNIMPLEMENTED! */ - /* */ - /* bit_test :: The bit test callback. UNIMPLEMENTED! */ - /* */ - /* bit_set :: The bit set callback. UNIMPLEMENTED! */ - /* */ - /* user :: User-supplied data that is passed to each drawing */ - /* callback. */ - /* */ - /* clip_box :: An optional clipping box. It is only used in */ - /* direct rendering mode. Note that coordinates here */ - /* should be expressed in _integer_ pixels (and not in */ - /* 26.6 fixed-point units). */ - /* */ - /* <Note> */ - /* An anti-aliased glyph bitmap is drawn if the @FT_RASTER_FLAG_AA */ - /* bit flag is set in the `flags' field, otherwise a monochrome */ - /* bitmap is generated. */ - /* */ - /* If the @FT_RASTER_FLAG_DIRECT bit flag is set in `flags', the */ - /* raster will call the `gray_spans' callback to draw gray pixel */ - /* spans, in the case of an aa glyph bitmap, it will call */ - /* `black_spans', and `bit_test' and `bit_set' in the case of a */ - /* monochrome bitmap. This allows direct composition over a */ - /* pre-existing bitmap through user-provided callbacks to perform the */ - /* span drawing/composition. */ - /* */ - /* Note that the `bit_test' and `bit_set' callbacks are required when */ - /* rendering a monochrome bitmap, as they are crucial to implement */ - /* correct drop-out control as defined in the TrueType specification. */ - /* */ - typedef struct FT_Raster_Params_ - { +/*************************************************************************/ +/* */ +/* <Struct> */ +/* FT_Raster_Params */ +/* */ +/* <Description> */ +/* A structure to hold the arguments used by a raster's render */ +/* function. */ +/* */ +/* <Fields> */ +/* target :: The target bitmap. */ +/* */ +/* source :: A pointer to the source glyph image (e.g., an */ +/* @FT_Outline). */ +/* */ +/* flags :: The rendering flags. */ +/* */ +/* gray_spans :: The gray span drawing callback. */ +/* */ +/* black_spans :: The black span drawing callback. UNIMPLEMENTED! */ +/* */ +/* bit_test :: The bit test callback. UNIMPLEMENTED! */ +/* */ +/* bit_set :: The bit set callback. UNIMPLEMENTED! */ +/* */ +/* user :: User-supplied data that is passed to each drawing */ +/* callback. */ +/* */ +/* clip_box :: An optional clipping box. It is only used in */ +/* direct rendering mode. Note that coordinates here */ +/* should be expressed in _integer_ pixels (and not in */ +/* 26.6 fixed-point units). */ +/* */ +/* <Note> */ +/* An anti-aliased glyph bitmap is drawn if the @FT_RASTER_FLAG_AA */ +/* bit flag is set in the `flags' field, otherwise a monochrome */ +/* bitmap is generated. */ +/* */ +/* If the @FT_RASTER_FLAG_DIRECT bit flag is set in `flags', the */ +/* raster will call the `gray_spans' callback to draw gray pixel */ +/* spans, in the case of an aa glyph bitmap, it will call */ +/* `black_spans', and `bit_test' and `bit_set' in the case of a */ +/* monochrome bitmap. This allows direct composition over a */ +/* pre-existing bitmap through user-provided callbacks to perform the */ +/* span drawing/composition. */ +/* */ +/* Note that the `bit_test' and `bit_set' callbacks are required when */ +/* rendering a monochrome bitmap, as they are crucial to implement */ +/* correct drop-out control as defined in the TrueType specification. */ +/* */ +typedef struct FT_Raster_Params_ { const FT_Bitmap* target; const void* source; int flags; @@ -1113,180 +1103,179 @@ FT_BEGIN_HEADER void* user; FT_BBox clip_box; - } FT_Raster_Params; - - - /*************************************************************************/ - /* */ - /* <FuncType> */ - /* FT_Raster_NewFunc */ - /* */ - /* <Description> */ - /* A function used to create a new raster object. */ - /* */ - /* <Input> */ - /* memory :: A handle to the memory allocator. */ - /* */ - /* <Output> */ - /* raster :: A handle to the new raster object. */ - /* */ - /* <Return> */ - /* Error code. 0~means success. */ - /* */ - /* <Note> */ - /* The `memory' parameter is a typeless pointer in order to avoid */ - /* un-wanted dependencies on the rest of the FreeType code. In */ - /* practice, it is an @FT_Memory object, i.e., a handle to the */ - /* standard FreeType memory allocator. However, this field can be */ - /* completely ignored by a given raster implementation. */ - /* */ - typedef int - (*FT_Raster_NewFunc)( void* memory, - FT_Raster* raster ); +} FT_Raster_Params; + + +/*************************************************************************/ +/* */ +/* <FuncType> */ +/* FT_Raster_NewFunc */ +/* */ +/* <Description> */ +/* A function used to create a new raster object. */ +/* */ +/* <Input> */ +/* memory :: A handle to the memory allocator. */ +/* */ +/* <Output> */ +/* raster :: A handle to the new raster object. */ +/* */ +/* <Return> */ +/* Error code. 0~means success. */ +/* */ +/* <Note> */ +/* The `memory' parameter is a typeless pointer in order to avoid */ +/* un-wanted dependencies on the rest of the FreeType code. In */ +/* practice, it is an @FT_Memory object, i.e., a handle to the */ +/* standard FreeType memory allocator. However, this field can be */ +/* completely ignored by a given raster implementation. */ +/* */ +typedef int +(*FT_Raster_NewFunc)( void* memory, + FT_Raster* raster ); #define FT_Raster_New_Func FT_Raster_NewFunc - /*************************************************************************/ - /* */ - /* <FuncType> */ - /* FT_Raster_DoneFunc */ - /* */ - /* <Description> */ - /* A function used to destroy a given raster object. */ - /* */ - /* <Input> */ - /* raster :: A handle to the raster object. */ - /* */ - typedef void - (*FT_Raster_DoneFunc)( FT_Raster raster ); +/*************************************************************************/ +/* */ +/* <FuncType> */ +/* FT_Raster_DoneFunc */ +/* */ +/* <Description> */ +/* A function used to destroy a given raster object. */ +/* */ +/* <Input> */ +/* raster :: A handle to the raster object. */ +/* */ +typedef void +(*FT_Raster_DoneFunc)( FT_Raster raster ); #define FT_Raster_Done_Func FT_Raster_DoneFunc - /*************************************************************************/ - /* */ - /* <FuncType> */ - /* FT_Raster_ResetFunc */ - /* */ - /* <Description> */ - /* FreeType provides an area of memory called the `render pool', */ - /* available to all registered rasters. This pool can be freely used */ - /* during a given scan-conversion but is shared by all rasters. Its */ - /* content is thus transient. */ - /* */ - /* This function is called each time the render pool changes, or just */ - /* after a new raster object is created. */ - /* */ - /* <Input> */ - /* raster :: A handle to the new raster object. */ - /* */ - /* pool_base :: The address in memory of the render pool. */ - /* */ - /* pool_size :: The size in bytes of the render pool. */ - /* */ - /* <Note> */ - /* Rasters can ignore the render pool and rely on dynamic memory */ - /* allocation if they want to (a handle to the memory allocator is */ - /* passed to the raster constructor). However, this is not */ - /* recommended for efficiency purposes. */ - /* */ - typedef void - (*FT_Raster_ResetFunc)( FT_Raster raster, - unsigned char* pool_base, - unsigned long pool_size ); +/*************************************************************************/ +/* */ +/* <FuncType> */ +/* FT_Raster_ResetFunc */ +/* */ +/* <Description> */ +/* FreeType provides an area of memory called the `render pool', */ +/* available to all registered rasters. This pool can be freely used */ +/* during a given scan-conversion but is shared by all rasters. Its */ +/* content is thus transient. */ +/* */ +/* This function is called each time the render pool changes, or just */ +/* after a new raster object is created. */ +/* */ +/* <Input> */ +/* raster :: A handle to the new raster object. */ +/* */ +/* pool_base :: The address in memory of the render pool. */ +/* */ +/* pool_size :: The size in bytes of the render pool. */ +/* */ +/* <Note> */ +/* Rasters can ignore the render pool and rely on dynamic memory */ +/* allocation if they want to (a handle to the memory allocator is */ +/* passed to the raster constructor). However, this is not */ +/* recommended for efficiency purposes. */ +/* */ +typedef void +(*FT_Raster_ResetFunc)( FT_Raster raster, + unsigned char* pool_base, + unsigned long pool_size ); #define FT_Raster_Reset_Func FT_Raster_ResetFunc - /*************************************************************************/ - /* */ - /* <FuncType> */ - /* FT_Raster_SetModeFunc */ - /* */ - /* <Description> */ - /* This function is a generic facility to change modes or attributes */ - /* in a given raster. This can be used for debugging purposes, or */ - /* simply to allow implementation-specific `features' in a given */ - /* raster module. */ - /* */ - /* <Input> */ - /* raster :: A handle to the new raster object. */ - /* */ - /* mode :: A 4-byte tag used to name the mode or property. */ - /* */ - /* args :: A pointer to the new mode/property to use. */ - /* */ - typedef int - (*FT_Raster_SetModeFunc)( FT_Raster raster, - unsigned long mode, - void* args ); +/*************************************************************************/ +/* */ +/* <FuncType> */ +/* FT_Raster_SetModeFunc */ +/* */ +/* <Description> */ +/* This function is a generic facility to change modes or attributes */ +/* in a given raster. This can be used for debugging purposes, or */ +/* simply to allow implementation-specific `features' in a given */ +/* raster module. */ +/* */ +/* <Input> */ +/* raster :: A handle to the new raster object. */ +/* */ +/* mode :: A 4-byte tag used to name the mode or property. */ +/* */ +/* args :: A pointer to the new mode/property to use. */ +/* */ +typedef int +(*FT_Raster_SetModeFunc)( FT_Raster raster, + unsigned long mode, + void* args ); #define FT_Raster_Set_Mode_Func FT_Raster_SetModeFunc - /*************************************************************************/ - /* */ - /* <FuncType> */ - /* FT_Raster_RenderFunc */ - /* */ - /* <Description> */ - /* Invoke a given raster to scan-convert a given glyph image into a */ - /* target bitmap. */ - /* */ - /* <Input> */ - /* raster :: A handle to the raster object. */ - /* */ - /* params :: A pointer to an @FT_Raster_Params structure used to */ - /* store the rendering parameters. */ - /* */ - /* <Return> */ - /* Error code. 0~means success. */ - /* */ - /* <Note> */ - /* The exact format of the source image depends on the raster's glyph */ - /* format defined in its @FT_Raster_Funcs structure. It can be an */ - /* @FT_Outline or anything else in order to support a large array of */ - /* glyph formats. */ - /* */ - /* Note also that the render function can fail and return a */ - /* `FT_Err_Unimplemented_Feature' error code if the raster used does */ - /* not support direct composition. */ - /* */ - /* XXX: For now, the standard raster doesn't support direct */ - /* composition but this should change for the final release (see */ - /* the files `demos/src/ftgrays.c' and `demos/src/ftgrays2.c' */ - /* for examples of distinct implementations which support direct */ - /* composition). */ - /* */ - typedef int - (*FT_Raster_RenderFunc)( FT_Raster raster, - const FT_Raster_Params* params ); +/*************************************************************************/ +/* */ +/* <FuncType> */ +/* FT_Raster_RenderFunc */ +/* */ +/* <Description> */ +/* Invoke a given raster to scan-convert a given glyph image into a */ +/* target bitmap. */ +/* */ +/* <Input> */ +/* raster :: A handle to the raster object. */ +/* */ +/* params :: A pointer to an @FT_Raster_Params structure used to */ +/* store the rendering parameters. */ +/* */ +/* <Return> */ +/* Error code. 0~means success. */ +/* */ +/* <Note> */ +/* The exact format of the source image depends on the raster's glyph */ +/* format defined in its @FT_Raster_Funcs structure. It can be an */ +/* @FT_Outline or anything else in order to support a large array of */ +/* glyph formats. */ +/* */ +/* Note also that the render function can fail and return a */ +/* `FT_Err_Unimplemented_Feature' error code if the raster used does */ +/* not support direct composition. */ +/* */ +/* XXX: For now, the standard raster doesn't support direct */ +/* composition but this should change for the final release (see */ +/* the files `demos/src/ftgrays.c' and `demos/src/ftgrays2.c' */ +/* for examples of distinct implementations which support direct */ +/* composition). */ +/* */ +typedef int +(*FT_Raster_RenderFunc)( FT_Raster raster, + const FT_Raster_Params* params ); #define FT_Raster_Render_Func FT_Raster_RenderFunc - /*************************************************************************/ - /* */ - /* <Struct> */ - /* FT_Raster_Funcs */ - /* */ - /* <Description> */ - /* A structure used to describe a given raster class to the library. */ - /* */ - /* <Fields> */ - /* glyph_format :: The supported glyph format for this raster. */ - /* */ - /* raster_new :: The raster constructor. */ - /* */ - /* raster_reset :: Used to reset the render pool within the raster. */ - /* */ - /* raster_render :: A function to render a glyph into a given bitmap. */ - /* */ - /* raster_done :: The raster destructor. */ - /* */ - typedef struct FT_Raster_Funcs_ - { +/*************************************************************************/ +/* */ +/* <Struct> */ +/* FT_Raster_Funcs */ +/* */ +/* <Description> */ +/* A structure used to describe a given raster class to the library. */ +/* */ +/* <Fields> */ +/* glyph_format :: The supported glyph format for this raster. */ +/* */ +/* raster_new :: The raster constructor. */ +/* */ +/* raster_reset :: Used to reset the render pool within the raster. */ +/* */ +/* raster_render :: A function to render a glyph into a given bitmap. */ +/* */ +/* raster_done :: The raster destructor. */ +/* */ +typedef struct FT_Raster_Funcs_ { FT_Glyph_Format glyph_format; FT_Raster_NewFunc raster_new; FT_Raster_ResetFunc raster_reset; @@ -1294,10 +1283,10 @@ FT_BEGIN_HEADER FT_Raster_RenderFunc raster_render; FT_Raster_DoneFunc raster_done; - } FT_Raster_Funcs; +} FT_Raster_Funcs; - /* */ +/* */ FT_END_HEADER |