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author | tobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c> | 2010-05-23 09:07:15 +0000 |
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committer | tobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c> | 2010-05-23 09:07:15 +0000 |
commit | 678cc132f942ff4d84a803550eedf96acc543bca (patch) | |
tree | eb195abafaf69d55fa0f4b77323e517fcd2263cd /cmake/src/lib/freetype/freetype.pas | |
parent | 7e677fd5ebe60c3dd9df8954e1ed28c4afdf8660 (diff) | |
download | usdx-678cc132f942ff4d84a803550eedf96acc543bca.tar.gz usdx-678cc132f942ff4d84a803550eedf96acc543bca.tar.xz usdx-678cc132f942ff4d84a803550eedf96acc543bca.zip |
update to trunk rev. 2391
git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/branches/experimental@2401 b956fd51-792f-4845-bead-9b4dfca2ff2c
Diffstat (limited to '')
-rw-r--r-- | cmake/src/lib/freetype/freetype.pas | 989 |
1 files changed, 186 insertions, 803 deletions
diff --git a/cmake/src/lib/freetype/freetype.pas b/cmake/src/lib/freetype/freetype.pas index 6a9d2062..01f507bc 100644 --- a/cmake/src/lib/freetype/freetype.pas +++ b/cmake/src/lib/freetype/freetype.pas @@ -1,23 +1,42 @@ -//---------------------------------------------------------------------------- -// FreeType2 pascal header -//---------------------------------------------------------------------------- -// Anti-Grain Geometry - Version 2.4 (Public License) -// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com) -// -// Anti-Grain Geometry - Version 2.4 Release Milano 3 (AggPas 2.4 RM3) -// Pascal Port By: Milan Marusinec alias Milano -// milan@marusinec.sk -// http://www.aggpas.org -// Copyright (c) 2005-2007 -// -// Permission to copy, use, modify, sell and distribute this software -// is granted provided this copyright notice appears in all copies. -// This software is provided "as is" without express or implied -// warranty, and with no claim as to its suitability for any purpose. -// -//---------------------------------------------------------------------------- -// Adapted by the UltraStar Deluxe Team -//---------------------------------------------------------------------------- +(***************************************************************************) +(* *) +(* freetype.h *) +(* *) +(* FreeType high-level API and common types (specification only). *) +(* *) +(* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007 by *) +(* David Turner, Robert Wilhelm, and Werner Lemberg. *) +(* *) +(* This file is part of the FreeType project, and may only be used, *) +(* modified, and distributed under the terms of the FreeType project *) +(* license, LICENSE.TXT. By continuing to use, modify, or distribute *) +(* this file you indicate that you have read the license and *) +(* understand and accept it fully. *) +(* *) +(***************************************************************************) + +(***************************************************************************) +(* Initial Pascal port by *) +(***************************************************************************) +(* Anti-Grain Geometry - Version 2.4 (Public License) *) +(* Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com) *) +(* *) +(* Anti-Grain Geometry - Version 2.4 Release Milano 3 (AggPas 2.4 RM3) *) +(* Pascal Port By: Milan Marusinec alias Milano *) +(* milan@marusinec.sk *) +(* http://www.aggpas.org *) +(* Copyright (c) 2005-2007 *) +(* *) +(* Permission to copy, use, modify, sell and distribute this software *) +(* is granted provided this copyright notice appears in all copies. *) +(* This software is provided "as is" without express or implied *) +(* warranty, and with no claim as to its suitability for any purpose. *) +(* *) +(***************************************************************************) + +(***************************************************************************) +(* Extended by the UltraStar Deluxe Team *) +(***************************************************************************) unit freetype; @@ -36,7 +55,7 @@ uses const {$IF Defined(MSWINDOWS)} - ft_lib = 'libfreetype-6.dll'; + ft_lib = 'freetype6.dll'; {$ELSEIF Defined(DARWIN)} ft_lib = 'libfreetype.dylib'; {$LINKLIB libfreetype} @@ -45,32 +64,24 @@ const {$IFEND} type - FT_Byte = cuchar; - FT_Short = csshort; - FT_UShort = cushort; - FT_Int = csint; - FT_UInt = cuint; - FT_Int16 = cint16; - FT_UInt16 = cuint16; - FT_Int32 = cint32; - FT_UInt32 = cuint32; - FT_Long = cslong; - FT_ULong = culong; - - FT_Fixed = cslong; - FT_Pos = cslong; - FT_Error = cint; - FT_F26Dot6 = cslong; - FT_String = cchar; - FT_Bool = cuchar; - - PFT_Byte = ^FT_Byte; - PFT_Short = ^FT_Short; - PFT_String = ^FT_String; - - - TByteArray = array [0 .. (MaxInt div SizeOf(byte))-1] of byte; - PByteArray = ^TByteArray; + (*************************************************************************) + (* *) + (* <Type> *) + (* FT_Library *) + (* *) + (* <Description> *) + (* A handle to a FreeType library instance. Each `library' is *) + (* completely independent from the others; it is the `root' of a set *) + (* of objects like fonts, faces, sizes, etc. *) + (* *) + (* It also embeds a memory manager (see @FT_Memory), as well as a *) + (* scan-line converter object (see @FT_Raster). *) + (* *) + (* <Note> *) + (* Library objects are normally created by @FT_Init_FreeType, and *) + (* destroyed with @FT_Done_FreeType. *) + (* *) + FT_Library = Pointer; (*************************************************************************) @@ -141,6 +152,34 @@ const (*************************************************************************) (* *) + (* <Macro> *) + (* FT_ENC_TAG *) + (* *) + (* <Description> *) + (* This macro converts four-letter tags into an unsigned long. It is *) + (* used to define `encoding' identifiers (see @FT_Encoding). *) + (* *) + (* <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_ENC_TAG( value, a, b, c, d ) value *) + (* } *) + (* *) + (* to get a simple enumeration without assigning special numbers. *) + (* *) + { + #define FT_ENC_TAG( value, a, b, c, d ) \ + value = ( ( (FT_UInt32)(a) << 24 ) | \ + ( (FT_UInt32)(b) << 16 ) | \ + ( (FT_UInt32)(c) << 8 ) | \ + (FT_UInt32)(d) ) + } + + (*************************************************************************) + (* *) (* <Enum> *) (* FT_Encoding *) (* *) @@ -278,65 +317,47 @@ const (* *) type PFT_Encoding = ^FT_Encoding; - FT_Encoding = array[0..3] of char; -const - FT_ENCODING_NONE: FT_Encoding = (#0 ,#0 ,#0 ,#0 ); - FT_ENCODING_MS_SYMBOL: FT_Encoding = ('s', 'y', 'm', 'b' ); - FT_ENCODING_UNICODE: FT_Encoding = ('u', 'n', 'i', 'c' ); - - FT_ENCODING_SJIS: FT_Encoding = ('s', 'j', 'i', 's'); - FT_ENCODING_GB2312: FT_Encoding = ('g', 'b', ' ', ' '); - FT_ENCODING_BIG5: FT_Encoding = ('b', 'i', 'g', '5'); - FT_ENCODING_WANSUNG: FT_Encoding = ('w', 'a', 'n', 's'); - FT_ENCODING_JOHAB: FT_Encoding = ('j', 'o', 'h', 'a'); - - (*************************************************************************) - (* *) - (* <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 and does describe a glyph format. *) - (* *) - (* 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 vertorial outline made of line segments *) - (* and Bezier 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/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. *) - (* *) -type - FT_Glyph_Format = array[0..3] of char; + FT_Encoding = cint32; // 32 bit enum of FT_ENC_TAG const - FT_GLYPH_FORMAT_NONE: FT_Glyph_Format = (#0, #0, #0, #0 ); - - FT_GLYPH_FORMAT_COMPOSITE: FT_Glyph_Format = ('c', 'o', 'm', 'p' ); - FT_GLYPH_FORMAT_BITMAP: FT_Glyph_Format = ('b', 'i', 't', 's' ); - FT_GLYPH_FORMAT_OUTLINE: FT_Glyph_Format = ('o', 'u', 't', 'l' ); - FT_GLYPH_FORMAT_PLOTTER: FT_Glyph_Format = ('p', 'l', 'o', 't' ); + FT_ENCODING_NONE = (Ord(#0) shl 24) or + (Ord(#0) shl 16) or + (Ord(#0) shl 8) or + (Ord(#0) shl 0); + + FT_ENCODING_MS_SYMBOL = (Ord('s') shl 24) or + (Ord('y') shl 16) or + (Ord('m') shl 8) or + (Ord('b') shl 0); + + FT_ENCODING_UNICODE = (Ord('u') shl 24) or + (Ord('n') shl 16) or + (Ord('i') shl 8) or + (Ord('c') shl 0); + + FT_ENCODING_SJIS = (Ord('s') shl 24) or + (Ord('j') shl 16) or + (Ord('i') shl 8) or + (Ord('s') shl 0); + + FT_ENCODING_GB2312 = (Ord('g') shl 24) or + (Ord('b') shl 16) or + (Ord(' ') shl 8) or + (Ord(' ') shl 0); + + FT_ENCODING_BIG5 = (Ord('b') shl 24) or + (Ord('i') shl 16) or + (Ord('g') shl 8) or + (Ord('5') shl 0); + + FT_ENCODING_WANSUNG = (Ord('w') shl 24) or + (Ord('a') shl 16) or + (Ord('n') shl 8) or + (Ord('s') shl 0); + + FT_ENCODING_JOHAB = (Ord('j') shl 24) or + (Ord('o') shl 16) or + (Ord('h') shl 8) or + (Ord('a') shl 0); (*************************************************************************) @@ -358,7 +379,7 @@ const const FT_STYLE_FLAG_ITALIC = 1 shl 0; FT_STYLE_FLAG_BOLD = 1 shl 1; - + (*************************************************************************** * @@ -567,7 +588,7 @@ const (* perform this pass. *) (* *) type - FT_Render_Mode = FT_Int; + FT_Render_Mode = cint; const FT_RENDER_MODE_NORMAL = 0; FT_RENDER_MODE_LIGHT = FT_RENDER_MODE_NORMAL + 1; @@ -579,63 +600,34 @@ const (*************************************************************************) (* *) - (* <Enum> *) - (* FT_Pixel_Mode *) + (* <Type> *) + (* FT_GlyphSlot *) (* *) (* <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. *) + (* A handle to a given `glyph slot'. A slot is a container where it *) + (* is possible to load any one of the glyphs contained in its parent *) + (* face. *) (* *) - (* <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 value `gray' levels is stored in the `num_bytes' field of *) - (* the @FT_Bitmap structure (it generally is 256). *) - (* *) - (* FT_PIXEL_MODE_GRAY2 :: *) - (* A 2-bit/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/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_LCD :: *) - (* An 8-bit bitmap, used to represent 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, used to represent 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. *) + (* In other words, each time you call @FT_Load_Glyph or *) + (* @FT_Load_Char, the slot's content is erased by the new glyph data, *) + (* i.e. the glyph's metrics, its image (bitmap or outline), and *) + (* other control information. *) + (* *) + (* <Also> *) + (* @FT_GlyphSlotRec details the publicly accessible glyph fields. *) (* *) type - FT_Pixel_Mode = byte; -const - FT_PIXEL_MODE_NONE = 0; - FT_PIXEL_MODE_MONO = FT_PIXEL_MODE_NONE + 1; - FT_PIXEL_MODE_GRAY = FT_PIXEL_MODE_MONO + 1; - FT_PIXEL_MODE_GRAY2 = FT_PIXEL_MODE_GRAY + 1; - FT_PIXEL_MODE_GRAY4 = FT_PIXEL_MODE_GRAY2 + 1; - FT_PIXEL_MODE_LCD = FT_PIXEL_MODE_GRAY4 + 1; - FT_PIXEL_MODE_LCD_V = FT_PIXEL_MODE_LCD + 1; + FT_GlyphSlot = ^FT_GlyphSlotRec; - FT_PIXEL_MODE_MAX = FT_PIXEL_MODE_LCD_V + 1; (* do not remove *) + +{$DEFINE TYPE_DECL} +{$I ftconfig.inc} +{$I fttypes.inc} +{$I ftimage.inc} +{$I ftglyph.inc} +{$I ftstroke.inc} +{$I ftoutln.inc} +{$UNDEF TYPE_DECL} (*************************************************************************) @@ -674,7 +666,6 @@ const (* vertAdvance :: *) (* Advance height for vertical layout. *) (* *) -type FT_Glyph_Metrics = record width , height : FT_Pos; @@ -759,140 +750,6 @@ type (*************************************************************************) (* *) - (* <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. *) - (* *) - PFT_Vector = ^FT_Vector; - FT_Vector = record - x , - y : FT_Pos; - end; - - - (*************************************************************************) - (* *) - (* <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 Bezier control *) - (* point, while it is `on' when set. *) - (* *) - (* Bit 1 is meaningful for `off' points only. If set, *) - (* it indicates a third-order Bezier arc control point; *) - (* and a second-order control point if unset. *) - (* *) - (* 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. *) - (* *) - PFT_Outline = ^FT_Outline; - FT_Outline = record - n_contours : FT_Short; - n_points : FT_Short; - - points : PFT_Vector; - tags : PChar; - contours : PFT_Short; - - flags : FT_Int; - end; - - - (*************************************************************************) - (* *) - (* <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. *) - (* *) - (* 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 only used with paletted pixel modes; *) - (* it indicates how the palette is stored. *) - (* *) - (* palette :: A typeless pointer to the bitmap palette; only *) - (* used for paletted pixel modes. *) - (* *) - (* <Note> *) - (* For now, the only pixel mode supported by FreeType are mono and *) - (* grays. However, drivers might be added in the future to support *) - (* more `colorful' options. *) - (* *) - (* When using pixel modes pal2, pal4 and pal8 with a void `palette' *) - (* field, a gray pixmap with respectively 4, 16, and 256 levels of *) - (* gray is assumed. This, in order to be compatible with some *) - (* embedded bitmap formats defined in the TrueType specification. *) - (* *) - (* Note that no font was found presenting such embedded bitmaps, so *) - (* this is currently completely unhandled by the library. *) - (* *) - PFT_Bitmap = ^FT_Bitmap; - FT_Bitmap = record - rows , - width : FT_Int; - pitch : FT_Int; - buffer : PByteArray; - num_grays : FT_Short; - pixel_mode , - palette_mode : byte; - palette : pointer; - end; - - - (*************************************************************************) - (* *) (* <Type> *) (* FT_Face *) (* *) @@ -950,183 +807,10 @@ type PAFT_CharMap = ^FT_CharMap; AFT_CharMap = array[0..High(Word)] of FT_CharMap; - (*************************************************************************) - (* *) - (* <Type> *) - (* FT_Library *) - (* *) - (* <Description> *) - (* A handle to a FreeType library instance. Each `library' is *) - (* completely independent from the others; it is the `root' of a set *) - (* of objects like fonts, faces, sizes, etc. *) - (* *) - (* It also embeds a memory manager (see @FT_Memory), as well as a *) - (* scan-line converter object (see @FT_Raster). *) - (* *) - (* <Note> *) - (* Library objects are normally created by @FT_Init_FreeType, and *) - (* destroyed with @FT_Done_FreeType. *) - (* *) - FT_Library = ^FT_LibraryRec; - FT_LibraryRec = record // internal - end; - - (*************************************************************************) - (* *) - (* <Section> *) - (* glyph_management *) - (* *) - (* <Title> *) - (* Glyph Management *) - (* *) - (* <Abstract> *) - (* Generic interface to manage individual glyph data. *) - (* *) - (* <Description> *) - (* This section contains definitions used to manage glyph data *) - (* through generic FT_Glyph objects. Each of them can contain a *) - (* bitmap, a vector outline, or even images in other formats. *) - (* *) - (*************************************************************************) - - (* forward declaration to a private type *) - PFT_Glyph_Class = ^FT_Glyph_Class; - FT_Glyph_Class = record // internal - end; - - (*************************************************************************) - (* *) - (* <Type> *) - (* FT_Glyph *) - (* *) - (* <Description> *) - (* Handle to an object used to model generic glyph images. It is a *) - (* pointer to the @FT_GlyphRec structure and can contain a glyph *) - (* bitmap or pointer. *) - (* *) - (* <Note> *) - (* Glyph objects are not owned by the library. You must thus release *) - (* them manually (through @FT_Done_Glyph) _before_ calling *) - (* @FT_Done_FreeType. *) - (* *) - FT_Glyph = ^FT_GlyphRec; - - (*************************************************************************) - (* *) - (* <Struct> *) - (* FT_GlyphRec *) - (* *) - (* <Description> *) - (* The root glyph structure contains a given glyph image plus its *) - (* advance width in 16.16 fixed float format. *) - (* *) - (* <Fields> *) - (* library :: A handle to the FreeType library object. *) - (* *) - (* clazz :: A pointer to the glyph's class. Private. *) - (* *) - (* format :: The format of the glyph's image. *) - (* *) - (* advance :: A 16.16 vector that gives the glyph's advance width. *) - (* *) - FT_GlyphRec = record - library_: FT_Library; - clazz: PFT_Glyph_Class; - format: FT_Glyph_Format; - advance: FT_Vector; - end; - - - (*************************************************************************) - (* *) - (* <Type> *) - (* FT_BitmapGlyph *) - (* *) - (* <Description> *) - (* A handle to an object used to model a bitmap glyph image. This is *) - (* a sub-class of @FT_Glyph, and a pointer to @FT_BitmapGlyphRec. *) - (* *) - FT_BitmapGlyph = ^FT_BitmapGlyphRec; - (*************************************************************************) - (* *) - (* <Struct> *) - (* FT_BitmapGlyphRec *) - (* *) - (* <Description> *) - (* A structure used for bitmap glyph images. This really is a *) - (* `sub-class' of `FT_GlyphRec'. *) - (* *) - (* <Fields> *) - (* root :: The root FT_Glyph fields. *) - (* *) - (* left :: The left-side bearing, i.e., the horizontal distance *) - (* from the current pen position to the left border of the *) - (* glyph bitmap. *) - (* *) - (* top :: The top-side bearing, i.e., the vertical distance from *) - (* the current pen position to the top border of the glyph *) - (* bitmap. This distance is positive for upwards-y! *) - (* *) - (* bitmap :: A descriptor for the bitmap. *) - (* *) - (* <Note> *) - (* You can typecast FT_Glyph to FT_BitmapGlyph if you have *) - (* glyph->format == FT_GLYPH_FORMAT_BITMAP. This lets you access *) - (* the bitmap's contents easily. *) - (* *) - (* The corresponding pixel buffer is always owned by the BitmapGlyph *) - (* and is thus created and destroyed with it. *) - (* *) - FT_BitmapGlyphRec = record - root: FT_GlyphRec; - left: FT_Int; - top: FT_Int; - bitmap: FT_Bitmap; - end; - (*************************************************************************) - (* *) - (* <Type> *) - (* FT_OutlineGlyph *) - (* *) - (* <Description> *) - (* A handle to an object used to model an outline glyph image. This *) - (* is a sub-class of @FT_Glyph, and a pointer to @FT_OutlineGlyphRec. *) - (* *) - FT_OutlineGlyph = ^FT_OutlineGlyphRec; - (*************************************************************************) - (* *) - (* <Struct> *) - (* FT_OutlineGlyphRec *) - (* *) - (* <Description> *) - (* A structure used for outline (vectorial) glyph images. This *) - (* really is a `sub-class' of `FT_GlyphRec'. *) - (* *) - (* <Fields> *) - (* root :: The root FT_Glyph fields. *) - (* *) - (* outline :: A descriptor for the outline. *) - (* *) - (* <Note> *) - (* You can typecast FT_Glyph to FT_OutlineGlyph if you have *) - (* glyph->format == FT_GLYPH_FORMAT_OUTLINE. This lets you access *) - (* the outline's content easily. *) - (* *) - (* As the outline is extracted from a glyph slot, its coordinates are *) - (* expressed normally in 26.6 pixels, unless the flag *) - (* FT_LOAD_NO_SCALE was used in FT_Load_Glyph() or FT_Load_Char(). *) - (* *) - (* The outline's tables are always owned by the object and are *) - (* destroyed with it. *) - (* *) - FT_OutlineGlyphRec = record - root: FT_GlyphRec; - outline: FT_Outline; - end; (*************************************************************************) @@ -1149,101 +833,6 @@ type (*************************************************************************) (* *) - (* <FuncType> *) - (* FT_Generic_Finalizer *) - (* *) - (* <Description> *) - (* Describes a function used to destroy the `client' data of any *) - (* FreeType object. See the description of the FT_Generic type for *) - (* details of usage. *) - (* *) - (* <Input> *) - (* The address of the FreeType object which is under finalization. *) - (* Its client data is accessed through its `generic' field. *) - (* *) - FT_Generic_Finalizer = procedure(AnObject : pointer ); cdecl; - - (*************************************************************************) - (* *) - (* <Struct> *) - (* FT_Generic *) - (* *) - (* <Description> *) - (* Client applications often need to associate their own data to a *) - (* variety of FreeType core objects. For example, a text layout API *) - (* might want to associate a glyph cache to a given size object. *) - (* *) - (* Most FreeType object contains a `generic' field, of type *) - (* FT_Generic, which usage is left to client applications and font *) - (* servers. *) - (* *) - (* It can be used to store a pointer to client-specific data, as well *) - (* as the address of a `finalizer' function, which will be called by *) - (* FreeType when the object is destroyed (for example, the previous *) - (* client example would put the address of the glyph cache destructor *) - (* in the `finalizer' field). *) - (* *) - (* <Fields> *) - (* data :: A typeless pointer to any client-specified data. This *) - (* field is completely ignored by the FreeType library. *) - (* *) - (* finalizer :: A pointer to a `generic finalizer' function, which *) - (* will be called when the object is destroyed. If this *) - (* field is set to NULL, no code will be called. *) - (* *) - FT_Generic = record - data : pointer; - finalizer : FT_Generic_Finalizer; - end; - - (*************************************************************************) - (* *) - (* <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). *) - (* *) - PFT_BBox = ^FT_BBox; - FT_BBox = record - xMin, yMin : FT_Pos; - xMax, yMax : FT_Pos; - end; - - - (*************************************************************************) - (* *) - (* <Type> *) - (* FT_GlyphSlot *) - (* *) - (* <Description> *) - (* A handle to a given `glyph slot'. A slot is a container where it *) - (* is possible to load any one of the glyphs contained in its parent *) - (* face. *) - (* *) - (* In other words, each time you call @FT_Load_Glyph or *) - (* @FT_Load_Char, the slot's content is erased by the new glyph data, *) - (* i.e. the glyph's metrics, its image (bitmap or outline), and *) - (* other control information. *) - (* *) - (* <Also> *) - (* @FT_GlyphSlotRec details the publicly accessible glyph fields. *) - (* *) - FT_GlyphSlot = ^FT_GlyphSlotRec; - - (*************************************************************************) - (* *) (* <Struct> *) (* FT_GlyphSlotRec *) (* *) @@ -1432,7 +1021,7 @@ type subglyphs : FT_SubGlyph; control_data : pointer; - control_len : longint; + control_len : clong; lsb_delta: FT_Pos; rsb_delta: FT_Pos; @@ -1497,15 +1086,15 @@ type (* computations. *) (* *) FT_Size_Metrics = record - x_ppem , - y_ppem : FT_UShort; - x_scale , - y_scale : FT_Fixed; - - ascender , - descender : FT_Pos; - height : FT_Pos; - max_advance : FT_Pos; + x_ppem, (* horizontal pixels per EM *) + y_ppem: FT_UShort; (* vertical pixels per EM *) + x_scale, (* scaling values used to convert font *) + y_scale: FT_Fixed; (* units to 26.6 fractional pixels *) + + ascender, (* ascender in 26.6 frac. pixels *) + descender: FT_Pos; (* descender in 26.6 frac. pixels *) + height: FT_Pos; (* text height in 26.6 frac. pixels *) + max_advance: FT_Pos; (* max horizontal advance, in 26.6 pixels *) end; (*************************************************************************) @@ -1786,21 +1375,29 @@ type encoding_id : FT_UShort; end; + +{$I ftconfig.inc} +{$I fttypes.inc} +{$I ftimage.inc} +{$I ftglyph.inc} +{$I ftstroke.inc} +{$I ftoutln.inc} + + { GLOBAL PROCEDURES } (*************************************************************************) (* *) (* @macro: *) - (* FT_CURVE_TAG ( flag ) *) + (* FT_HAS_KERNING( face ) *) (* *) - function FT_CURVE_TAG(flag: byte): byte; - -const - FT_CURVE_TAG_ON = 1; - FT_CURVE_TAG_CONIC = 0; - FT_CURVE_TAG_CUBIC = 2; - + (* @description: *) + (* A macro that returns true whenever a face object contains kerning *) + (* data that can be accessed with @FT_Get_Kerning. *) + (* *) + function FT_HAS_KERNING(face : FT_Face ) : cbool; + (*************************************************************************) (* *) (* @macro: *) @@ -1813,16 +1410,6 @@ const (* *) function FT_IS_SCALABLE(face : FT_Face ) : cbool; - (*************************************************************************) - (* *) - (* @macro: *) - (* FT_HAS_KERNING( face ) *) - (* *) - (* @description: *) - (* A macro that returns true whenever a face object contains kerning *) - (* data that can be accessed with @FT_Get_Kerning. *) - (* *) - function FT_HAS_KERNING(face : FT_Face ) : cbool; (*************************************************************************) (* *) @@ -2284,216 +1871,12 @@ const pixel_height : FT_UInt ) : FT_Error; cdecl; external ft_lib name 'FT_Set_Pixel_Sizes'; - (*************************************************************************) - (* *) - (* <Function> *) - (* FT_Get_Glyph *) - (* *) - (* <Description> *) - (* A function used to extract a glyph image from a slot. *) - (* *) - (* <Input> *) - (* slot :: A handle to the source glyph slot. *) - (* *) - (* <Output> *) - (* aglyph :: A handle to the glyph object. *) - (* *) - (* <Return> *) - (* FreeType error code. 0 means success. *) - (* *) - function FT_Get_Glyph( - slot: FT_GlyphSlot; - out aglyph: FT_Glyph ): FT_Error; - cdecl; external ft_lib name 'FT_Get_Glyph'; - - (*************************************************************************) - (* *) - (* <Enum> *) - (* FT_Glyph_BBox_Mode *) - (* *) - (* <Description> *) - (* The mode how the values of @FT_Glyph_Get_CBox are returned. *) - (* *) - (* <Values> *) - (* FT_GLYPH_BBOX_UNSCALED :: *) - (* Return unscaled font units. *) - (* *) - (* FT_GLYPH_BBOX_SUBPIXELS :: *) - (* Return unfitted 26.6 coordinates. *) - (* *) - (* FT_GLYPH_BBOX_GRIDFIT :: *) - (* Return grid-fitted 26.6 coordinates. *) - (* *) - (* FT_GLYPH_BBOX_TRUNCATE :: *) - (* Return coordinates in integer pixels. *) - (* *) - (* FT_GLYPH_BBOX_PIXELS :: *) - (* Return grid-fitted pixel coordinates. *) - (* *) -type - FT_Glyph_BBox_Mode = FT_UInt; const - FT_GLYPH_BBOX_UNSCALED = 0; - FT_GLYPH_BBOX_SUBPIXELS = 0; - FT_GLYPH_BBOX_GRIDFIT = 1; - FT_GLYPH_BBOX_TRUNCATE = 2; - FT_GLYPH_BBOX_PIXELS = 3; - - (*************************************************************************) - (* *) - (* <Function> *) - (* FT_Glyph_Get_CBox *) - (* *) - (* <Description> *) - (* Return a glyph's `control box'. The control box encloses all the *) - (* outline's points, including Bézier control points. Though it *) - (* coincides with the exact bounding box for most glyphs, it can be *) - (* slightly larger in some situations (like when rotating an outline *) - (* which contains Bézier outside arcs). *) - (* *) - (* Computing the control box is very fast, while getting the bounding *) - (* box can take much more time as it needs to walk over all segments *) - (* and arcs in the outline. To get the latter, you can use the *) - (* `ftbbox' component which is dedicated to this single task. *) - (* *) - (* <Input> *) - (* glyph :: A handle to the source glyph object. *) - (* *) - (* mode :: The mode which indicates how to interpret the returned *) - (* bounding box values. *) - (* *) - (* <Output> *) - (* acbox :: The glyph coordinate bounding box. Coordinates are *) - (* expressed in 1/64th of pixels if it is grid-fitted. *) - (* *) - (* <Note> *) - (* Coordinates are relative to the glyph origin, using the Y-upwards *) - (* convention. *) - (* *) - (* If the glyph has been loaded with @FT_LOAD_NO_SCALE, `bbox_mode' *) - (* must be set to @FT_GLYPH_BBOX_UNSCALED to get unscaled font *) - (* units in 26.6 pixel format. The value @FT_GLYPH_BBOX_SUBPIXELS *) - (* is another name for this constant. *) - (* *) - (* Note that the maximum coordinates are exclusive, which means that *) - (* one can compute the width and height of the glyph image (be it in *) - (* integer or 26.6 pixels) as: *) - (* *) - (* { *) - (* width = bbox.xMax - bbox.xMin; *) - (* height = bbox.yMax - bbox.yMin; *) - (* } *) - (* *) - (* Note also that for 26.6 coordinates, if `bbox_mode' is set to *) - (* @FT_GLYPH_BBOX_GRIDFIT, the coordinates will also be grid-fitted, *) - (* which corresponds to: *) - (* *) - (* { *) - (* bbox.xMin = FLOOR(bbox.xMin); *) - (* bbox.yMin = FLOOR(bbox.yMin); *) - (* bbox.xMax = CEILING(bbox.xMax); *) - (* bbox.yMax = CEILING(bbox.yMax); *) - (* } *) - (* *) - (* To get the bbox in pixel coordinates, set `bbox_mode' to *) - (* @FT_GLYPH_BBOX_TRUNCATE. *) - (* *) - (* To get the bbox in grid-fitted pixel coordinates, set `bbox_mode' *) - (* to @FT_GLYPH_BBOX_PIXELS. *) - (* *) - procedure FT_Glyph_Get_CBox( glyph: FT_Glyph; - bbox_mode: FT_UInt; - out acbox: FT_BBox ); - cdecl; external ft_lib name 'FT_Glyph_Get_CBox'; - - (*************************************************************************) - (* *) - (* <Function> *) - (* FT_Glyph_To_Bitmap *) - (* *) - (* <Description> *) - (* Converts a given glyph object to a bitmap glyph object. *) - (* *) - (* <InOut> *) - (* the_glyph :: A pointer to a handle to the target glyph. *) - (* *) - (* <Input> *) - (* render_mode :: An enumeration that describe how the data is *) - (* rendered. *) - (* *) - (* origin :: A pointer to a vector used to translate the glyph *) - (* image before rendering. Can be 0 (if no *) - (* translation). The origin is expressed in *) - (* 26.6 pixels. *) - (* *) - (* destroy :: A boolean that indicates that the original glyph *) - (* image should be destroyed by this function. It is *) - (* never destroyed in case of error. *) - (* *) - (* <Return> *) - (* FreeType error code. 0 means success. *) - (* *) - (* <Note> *) - (* The glyph image is translated with the `origin' vector before *) - (* rendering. *) - (* *) - (* The first parameter is a pointer to a FT_Glyph handle, that will *) - (* be replaced by this function. Typically, you would use (omitting *) - (* error handling): *) - (* *) - (* *) - (* { *) - (* FT_Glyph glyph; *) - (* FT_BitmapGlyph glyph_bitmap; *) - (* *) - (* *) - (* // load glyph *) - (* error = FT_Load_Char( face, glyph_index, FT_LOAD_DEFAUT ); *) - (* *) - (* // extract glyph image *) - (* error = FT_Get_Glyph( face->glyph, &glyph ); *) - (* *) - (* // convert to a bitmap (default render mode + destroy old) *) - (* if ( glyph->format != FT_GLYPH_FORMAT_BITMAP ) *) - (* { *) - (* error = FT_Glyph_To_Bitmap( &glyph, FT_RENDER_MODE_DEFAULT, *) - (* 0, 1 ); *) - (* if ( error ) // glyph unchanged *) - (* ... *) - (* } *) - (* *) - (* // access bitmap content by typecasting *) - (* glyph_bitmap = (FT_BitmapGlyph)glyph; *) - (* *) - (* // do funny stuff with it, like blitting/drawing *) - (* ... *) - (* *) - (* // discard glyph image (bitmap or not) *) - (* FT_Done_Glyph( glyph ); *) - (* } *) - (* *) - (* *) - (* This function does nothing if the glyph format isn't scalable. *) - (* *) - function FT_Glyph_To_Bitmap(var the_glyph: FT_Glyph; - render_mode: FT_Render_Mode; - origin: PFT_Vector; - destroy: FT_Bool ): FT_Error; - cdecl; external ft_lib name 'FT_Glyph_To_Bitmap'; + FT_ANGLE_PI = 180 shl 16; + FT_ANGLE_2PI = FT_ANGLE_PI * 2; + FT_ANGLE_PI2 = FT_ANGLE_PI div 2; + FT_ANGLE_PI4 = FT_ANGLE_PI div 4; - (*************************************************************************) - (* *) - (* <Function> *) - (* FT_Done_Glyph *) - (* *) - (* <Description> *) - (* Destroys a given glyph. *) - (* *) - (* <Input> *) - (* glyph :: A handle to the target glyph object. *) - (* *) - procedure FT_Done_Glyph( glyph: FT_Glyph ); - cdecl; external ft_lib name 'FT_Done_Glyph'; implementation @@ -2504,17 +1887,17 @@ begin result := flag and 3; end; -{ FT_IS_SCALABLE } -function FT_IS_SCALABLE(face : FT_Face ) : cbool; -begin - result := cbool(face.face_flags and FT_FACE_FLAG_SCALABLE ); -end; - { FT_HAS_KERNING } function FT_HAS_KERNING(face : FT_Face ) : cbool; begin result := cbool(face.face_flags and FT_FACE_FLAG_KERNING ); end; +{ FT_IS_SCALABLE } +function FT_IS_SCALABLE(face : FT_Face ) : cbool; +begin + result := cbool(face.face_flags and FT_FACE_FLAG_SCALABLE ); +end; + end. |