Qt
Internal/Contributor docs for the Qt SDK. Note: These are NOT official API docs; those are found at https://doc.qt.io/
Loading...
Searching...
No Matches
qrasterdefs_p.h
Go to the documentation of this file.
1// Copyright (C) 2016 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4/***************************************************************************/
5/* */
6/* ftimage.h */
7/* */
8/* FreeType glyph image formats and default raster interface */
9/* (specification). */
10/* */
11/* Copyright 1996-2001, 2002, 2003, 2004 by */
12/* David Turner, Robert Wilhelm, and Werner Lemberg. */
13/* */
14/* This file is part of the FreeType project, and may only be used, */
15/* modified, and distributed under the terms of the FreeType project */
16/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
17/* this file you indicate that you have read the license and */
18/* understand and accept it fully. */
19/* */
20/***************************************************************************/
21
22 /*************************************************************************/
23 /* */
24 /* Note: A `raster' is simply a scan-line converter, used to render */
25 /* QT_FT_Outlines into QT_FT_Bitmaps. */
26 /* */
27 /*************************************************************************/
28
29
30#ifndef __QT_FTIMAGE_H__
31#define __QT_FTIMAGE_H__
32
33/*
34// W A R N I N G
35// -------------
36//
37// This file is not part of the Qt API. It exists purely as an
38// implementation detail. This header file may change from version to
39// version without notice, or even be removed.
40//
41// We mean it.
42*/
43
44QT_FT_BEGIN_HEADER
45
46 /*************************************************************************/
47 /* */
48 /* <Section> */
49 /* basic_types */
50 /* */
51 /*************************************************************************/
52
53
54 /*************************************************************************/
55 /* */
56 /* <Type> */
57 /* QT_FT_Pos */
58 /* */
59 /* <Description> */
60 /* The type QT_FT_Pos is a 32-bit integer used to store vectorial */
61 /* coordinates. Depending on the context, these can represent */
62 /* distances in integer font units, or 16,16, or 26.6 fixed float */
63 /* pixel coordinates. */
64 /* */
65 typedef signed int QT_FT_Pos;
66
67
68 /*************************************************************************/
69 /* */
70 /* <Struct> */
71 /* QT_FT_Vector */
72 /* */
73 /* <Description> */
74 /* A simple structure used to store a 2D vector; coordinates are of */
75 /* the QT_FT_Pos type. */
76 /* */
77 /* <Fields> */
78 /* x :: The horizontal coordinate. */
79 /* y :: The vertical coordinate. */
80 /* */
81 typedef struct QT_FT_Vector_
82 {
83 QT_FT_Pos x;
84 QT_FT_Pos y;
85
86 } QT_FT_Vector;
87
88
89 /*************************************************************************/
90 /* */
91 /* <Struct> */
92 /* QT_FT_BBox */
93 /* */
94 /* <Description> */
95 /* A structure used to hold an outline's bounding box, i.e., the */
96 /* coordinates of its extrema in the horizontal and vertical */
97 /* directions. */
98 /* */
99 /* <Fields> */
100 /* xMin :: The horizontal minimum (left-most). */
101 /* */
102 /* yMin :: The vertical minimum (bottom-most). */
103 /* */
104 /* xMax :: The horizontal maximum (right-most). */
105 /* */
106 /* yMax :: The vertical maximum (top-most). */
107 /* */
108 typedef struct QT_FT_BBox_
109 {
110 QT_FT_Pos xMin, yMin;
111 QT_FT_Pos xMax, yMax;
112
113 } QT_FT_BBox;
114
115
116 /*************************************************************************/
117 /* */
118 /* <Enum> */
119 /* QT_FT_Pixel_Mode */
120 /* */
121 /* <Description> */
122 /* An enumeration type used to describe the format of pixels in a */
123 /* given bitmap. Note that additional formats may be added in the */
124 /* future. */
125 /* */
126 /* <Values> */
127 /* QT_FT_PIXEL_MODE_NONE :: */
128 /* Value 0 is reserved. */
129 /* */
130 /* QT_FT_PIXEL_MODE_MONO :: */
131 /* A monochrome bitmap, using 1 bit per pixel. Note that pixels */
132 /* are stored in most-significant order (MSB), which means that */
133 /* the left-most pixel in a byte has value 128. */
134 /* */
135 /* QT_FT_PIXEL_MODE_GRAY :: */
136 /* An 8-bit bitmap, generally used to represent anti-aliased glyph */
137 /* images. Each pixel is stored in one byte. Note that the number */
138 /* of value "gray" levels is stored in the `num_bytes' field of */
139 /* the @QT_FT_Bitmap structure (it generally is 256). */
140 /* */
141 /* QT_FT_PIXEL_MODE_GRAY2 :: */
142 /* A 2-bit/pixel bitmap, used to represent embedded anti-aliased */
143 /* bitmaps in font files according to the OpenType specification. */
144 /* We haven't found a single font using this format, however. */
145 /* */
146 /* QT_FT_PIXEL_MODE_GRAY4 :: */
147 /* A 4-bit/pixel bitmap, used to represent embedded anti-aliased */
148 /* bitmaps in font files according to the OpenType specification. */
149 /* We haven't found a single font using this format, however. */
150 /* */
151 /* QT_FT_PIXEL_MODE_LCD :: */
152 /* An 8-bit bitmap, used to represent RGB or BGR decimated glyph */
153 /* images used for display on LCD displays; the bitmap's width is */
154 /* three times wider than the original glyph image. See also */
155 /* @QT_FT_RENDER_MODE_LCD. */
156 /* */
157 /* QT_FT_PIXEL_MODE_LCD_V :: */
158 /* An 8-bit bitmap, used to represent RGB or BGR decimated glyph */
159 /* images used for display on rotated LCD displays; the bitmap's */
160 /* height is three times taller than the original glyph image. */
161 /* See also @QT_FT_RENDER_MODE_LCD_V. */
162 /* */
176
177
178 /*************************************************************************/
179 /* */
180 /* <Enum> */
181 /* qt_ft_pixel_mode_xxx */
182 /* */
183 /* <Description> */
184 /* A list of deprecated constants. Use the corresponding */
185 /* @QT_FT_Pixel_Mode values instead. */
186 /* */
187 /* <Values> */
188 /* qt_ft_pixel_mode_none :: see @QT_FT_PIXEL_MODE_NONE */
189 /* qt_ft_pixel_mode_mono :: see @QT_FT_PIXEL_MODE_MONO */
190 /* qt_ft_pixel_mode_grays :: see @QT_FT_PIXEL_MODE_GRAY */
191 /* qt_ft_pixel_mode_pal2 :: see @QT_FT_PIXEL_MODE_GRAY2 */
192 /* qt_ft_pixel_mode_pal4 :: see @QT_FT_PIXEL_MODE_GRAY4 */
193 /* */
194#define qt_ft_pixel_mode_none QT_FT_PIXEL_MODE_NONE
195#define qt_ft_pixel_mode_mono QT_FT_PIXEL_MODE_MONO
196#define qt_ft_pixel_mode_grays QT_FT_PIXEL_MODE_GRAY
197#define qt_ft_pixel_mode_pal2 QT_FT_PIXEL_MODE_GRAY2
198#define qt_ft_pixel_mode_pal4 QT_FT_PIXEL_MODE_GRAY4
199
200 /* */
201
202#if 0
203
204 /*************************************************************************/
205 /* */
206 /* <Enum> */
207 /* QT_FT_Palette_Mode */
208 /* */
209 /* <Description> */
210 /* THIS TYPE IS DEPRECATED. DO NOT USE IT! */
211 /* */
212 /* An enumeration type used to describe the format of a bitmap */
213 /* palette, used with qt_ft_pixel_mode_pal4 and qt_ft_pixel_mode_pal8. */
214 /* */
215 /* <Fields> */
216 /* qt_ft_palette_mode_rgb :: The palette is an array of 3-bytes RGB */
217 /* records. */
218 /* */
219 /* qt_ft_palette_mode_rgba :: The palette is an array of 4-bytes RGBA */
220 /* records. */
221 /* */
222 /* <Note> */
223 /* As qt_ft_pixel_mode_pal2, pal4 and pal8 are currently unused by */
224 /* FreeType, these types are not handled by the library itself. */
225 /* */
226 typedef enum QT_FT_Palette_Mode_
227 {
228 qt_ft_palette_mode_rgb = 0,
229 qt_ft_palette_mode_rgba,
230
231 qt_ft_palettte_mode_max /* do not remove */
232
233 } QT_FT_Palette_Mode;
234
235 /* */
236
237#endif
238
239
240 /*************************************************************************/
241 /* */
242 /* <Struct> */
243 /* QT_FT_Bitmap */
244 /* */
245 /* <Description> */
246 /* A structure used to describe a bitmap or pixmap to the raster. */
247 /* Note that we now manage pixmaps of various depths through the */
248 /* `pixel_mode' field. */
249 /* */
250 /* <Fields> */
251 /* rows :: The number of bitmap rows. */
252 /* */
253 /* width :: The number of pixels in bitmap row. */
254 /* */
255 /* pitch :: The pitch's absolute value is the number of bytes */
256 /* taken by one bitmap row, including padding. */
257 /* However, the pitch is positive when the bitmap has */
258 /* a `down' flow, and negative when it has an `up' */
259 /* flow. In all cases, the pitch is an offset to add */
260 /* to a bitmap pointer in order to go down one row. */
261 /* */
262 /* buffer :: A typeless pointer to the bitmap buffer. This */
263 /* value should be aligned on 32-bit boundaries in */
264 /* most cases. */
265 /* */
266 /* num_grays :: This field is only used with */
267 /* `QT_FT_PIXEL_MODE_GRAY'; it gives the number of gray */
268 /* levels used in the bitmap. */
269 /* */
270 /* pixel_mode :: The pixel mode, i.e., how pixel bits are stored. */
271 /* See @QT_FT_Pixel_Mode for possible values. */
272 /* */
273 /* palette_mode :: This field is only used with paletted pixel modes; */
274 /* it indicates how the palette is stored. */
275 /* */
276 /* palette :: A typeless pointer to the bitmap palette; only */
277 /* used for paletted pixel modes. */
278 /* */
279 /* <Note> */
280 /* For now, the only pixel mode supported by FreeType are mono and */
281 /* grays. However, drivers might be added in the future to support */
282 /* more `colorful' options. */
283 /* */
284 /* When using pixel modes pal2, pal4 and pal8 with a void `palette' */
285 /* field, a gray pixmap with respectively 4, 16, and 256 levels of */
286 /* gray is assumed. This, in order to be compatible with some */
287 /* embedded bitmap formats defined in the TrueType specification. */
288 /* */
289 /* Note that no font was found presenting such embedded bitmaps, so */
290 /* this is currently completely unhandled by the library. */
291 /* */
292 typedef struct QT_FT_Bitmap_
293 {
294 int rows;
295 int width;
296 int pitch;
297 unsigned char* buffer;
298 short num_grays;
299 char pixel_mode;
300 char palette_mode;
301 void* palette;
302
303 } QT_FT_Bitmap;
304
305
306 /*************************************************************************/
307 /* */
308 /* <Section> */
309 /* outline_processing */
310 /* */
311 /*************************************************************************/
312
313
314 /*************************************************************************/
315 /* */
316 /* <Struct> */
317 /* QT_FT_Outline */
318 /* */
319 /* <Description> */
320 /* This structure is used to describe an outline to the scan-line */
321 /* converter. */
322 /* */
323 /* <Fields> */
324 /* n_contours :: The number of contours in the outline. */
325 /* */
326 /* n_points :: The number of points in the outline. */
327 /* */
328 /* points :: A pointer to an array of `n_points' QT_FT_Vector */
329 /* elements, giving the outline's point coordinates. */
330 /* */
331 /* tags :: A pointer to an array of `n_points' chars, giving */
332 /* each outline point's type. If bit 0 is unset, the */
333 /* point is `off' the curve, i.e. a Bezier control */
334 /* point, while it is `on' when set. */
335 /* */
336 /* Bit 1 is meaningful for `off' points only. If set, */
337 /* it indicates a third-order Bezier arc control point; */
338 /* and a second-order control point if unset. */
339 /* */
340 /* contours :: An array of `n_contours' shorts, giving the end */
341 /* point of each contour within the outline. For */
342 /* example, the first contour is defined by the points */
343 /* `0' to `contours[0]', the second one is defined by */
344 /* the points `contours[0]+1' to `contours[1]', etc. */
345 /* */
346 /* flags :: A set of bit flags used to characterize the outline */
347 /* and give hints to the scan-converter and hinter on */
348 /* how to convert/grid-fit it. See QT_FT_Outline_Flags. */
349 /* */
350 typedef struct QT_FT_Outline_
351 {
352 int n_contours; /* number of contours in glyph */
353 int n_points; /* number of points in the glyph */
354
355 QT_FT_Vector* points; /* the outline's points */
356 char* tags; /* the points flags */
357 int* contours; /* the contour end points */
358
359 int flags; /* outline masks */
360
361 } QT_FT_Outline;
362
363
364 /*************************************************************************/
365 /* */
366 /* <Enum> */
367 /* QT_FT_OUTLINE_FLAGS */
368 /* */
369 /* <Description> */
370 /* A list of bit-field constants use for the flags in an outline's */
371 /* `flags' field. */
372 /* */
373 /* <Values> */
374 /* QT_FT_OUTLINE_NONE :: Value 0 is reserved. */
375 /* */
376 /* QT_FT_OUTLINE_OWNER :: If set, this flag indicates that the */
377 /* outline's field arrays (i.e. */
378 /* `points', `flags' & `contours') are */
379 /* `owned' by the outline object, and */
380 /* should thus be freed when it is */
381 /* destroyed. */
382 /* */
383 /* QT_FT_OUTLINE_EVEN_ODD_FILL :: By default, outlines are filled using */
384 /* the non-zero winding rule. If set to */
385 /* 1, the outline will be filled using */
386 /* the even-odd fill rule (only works */
387 /* with the smooth raster). */
388 /* */
389 /* QT_FT_OUTLINE_REVERSE_FILL :: By default, outside contours of an */
390 /* outline are oriented in clock-wise */
391 /* direction, as defined in the TrueType */
392 /* specification. This flag is set if */
393 /* the outline uses the opposite */
394 /* direction (typically for Type 1 */
395 /* fonts). This flag is ignored by the */
396 /* scan-converter. However, it is very */
397 /* important for the auto-hinter. */
398 /* */
399 /* QT_FT_OUTLINE_IGNORE_DROPOUTS :: By default, the scan converter will */
400 /* try to detect drop-outs in an outline */
401 /* and correct the glyph bitmap to */
402 /* ensure consistent shape continuity. */
403 /* If set, this flag hints the scan-line */
404 /* converter to ignore such cases. */
405 /* */
406 /* QT_FT_OUTLINE_HIGH_PRECISION :: This flag indicates that the */
407 /* scan-line converter should try to */
408 /* convert this outline to bitmaps with */
409 /* the highest possible quality. It is */
410 /* typically set for small character */
411 /* sizes. Note that this is only a */
412 /* hint, that might be completely */
413 /* ignored by a given scan-converter. */
414 /* */
415 /* QT_FT_OUTLINE_SINGLE_PASS :: This flag is set to force a given */
416 /* scan-converter to only use a single */
417 /* pass over the outline to render a */
418 /* bitmap glyph image. Normally, it is */
419 /* set for very large character sizes. */
420 /* It is only a hint, that might be */
421 /* completely ignored by a given */
422 /* scan-converter. */
423 /* */
424#define QT_FT_OUTLINE_NONE 0x0
425#define QT_FT_OUTLINE_OWNER 0x1
426#define QT_FT_OUTLINE_EVEN_ODD_FILL 0x2
427#define QT_FT_OUTLINE_REVERSE_FILL 0x4
428#define QT_FT_OUTLINE_IGNORE_DROPOUTS 0x8
429
430#define QT_FT_OUTLINE_HIGH_PRECISION 0x100
431#define QT_FT_OUTLINE_SINGLE_PASS 0x200
432
433
434 /*************************************************************************
435 *
436 * @enum:
437 * qt_ft_outline_flags
438 *
439 * @description:
440 * These constants are deprecated. Please use the corresponding
441 * @QT_FT_OUTLINE_FLAGS values.
442 *
443 * @values:
444 * qt_ft_outline_none :: See @QT_FT_OUTLINE_NONE.
445 * qt_ft_outline_owner :: See @QT_FT_OUTLINE_OWNER.
446 * qt_ft_outline_even_odd_fill :: See @QT_FT_OUTLINE_EVEN_ODD_FILL.
447 * qt_ft_outline_reverse_fill :: See @QT_FT_OUTLINE_REVERSE_FILL.
448 * qt_ft_outline_ignore_dropouts :: See @QT_FT_OUTLINE_IGNORE_DROPOUTS.
449 * qt_ft_outline_high_precision :: See @QT_FT_OUTLINE_HIGH_PRECISION.
450 * qt_ft_outline_single_pass :: See @QT_FT_OUTLINE_SINGLE_PASS.
451 */
452#define qt_ft_outline_none QT_FT_OUTLINE_NONE
453#define qt_ft_outline_owner QT_FT_OUTLINE_OWNER
454#define qt_ft_outline_even_odd_fill QT_FT_OUTLINE_EVEN_ODD_FILL
455#define qt_ft_outline_reverse_fill QT_FT_OUTLINE_REVERSE_FILL
456#define qt_ft_outline_ignore_dropouts QT_FT_OUTLINE_IGNORE_DROPOUTS
457#define qt_ft_outline_high_precision QT_FT_OUTLINE_HIGH_PRECISION
458#define qt_ft_outline_single_pass QT_FT_OUTLINE_SINGLE_PASS
459
460 /* */
461
462#define QT_FT_CURVE_TAG( flag ) ( flag & 3 )
463
464#define QT_FT_CURVE_TAG_ON 1
465#define QT_FT_CURVE_TAG_CONIC 0
466#define QT_FT_CURVE_TAG_CUBIC 2
467
468#define QT_FT_CURVE_TAG_TOUCH_X 8 /* reserved for the TrueType hinter */
469#define QT_FT_CURVE_TAG_TOUCH_Y 16 /* reserved for the TrueType hinter */
470
471#define QT_FT_CURVE_TAG_TOUCH_BOTH ( QT_FT_CURVE_TAG_TOUCH_X |
472 QT_FT_CURVE_TAG_TOUCH_Y )
473
474#define QT_FT_Curve_Tag_On QT_FT_CURVE_TAG_ON
475#define QT_FT_Curve_Tag_Conic QT_FT_CURVE_TAG_CONIC
476#define QT_FT_Curve_Tag_Cubic QT_FT_CURVE_TAG_CUBIC
477#define QT_FT_Curve_Tag_Touch_X QT_FT_CURVE_TAG_TOUCH_X
478#define QT_FT_Curve_Tag_Touch_Y QT_FT_CURVE_TAG_TOUCH_Y
479
480 /*************************************************************************/
481 /* */
482 /* <FuncType> */
483 /* QT_FT_Outline_MoveToFunc */
484 /* */
485 /* <Description> */
486 /* A function pointer type used to describe the signature of a `move */
487 /* to' function during outline walking/decomposition. */
488 /* */
489 /* A `move to' is emitted to start a new contour in an outline. */
490 /* */
491 /* <Input> */
492 /* to :: A pointer to the target point of the `move to'. */
493 /* */
494 /* user :: A typeless pointer which is passed from the caller of the */
495 /* decomposition function. */
496 /* */
497 /* <Return> */
498 /* Error code. 0 means success. */
499 /* */
500 typedef int
501 (*QT_FT_Outline_MoveToFunc)( QT_FT_Vector* to,
502 void* user );
503
504#define QT_FT_Outline_MoveTo_Func QT_FT_Outline_MoveToFunc
505
506 /*************************************************************************/
507 /* */
508 /* <FuncType> */
509 /* QT_FT_Outline_LineToFunc */
510 /* */
511 /* <Description> */
512 /* A function pointer type used to describe the signature of a `line */
513 /* to' function during outline walking/decomposition. */
514 /* */
515 /* A `line to' is emitted to indicate a segment in the outline. */
516 /* */
517 /* <Input> */
518 /* to :: A pointer to the target point of the `line to'. */
519 /* */
520 /* user :: A typeless pointer which is passed from the caller of the */
521 /* decomposition function. */
522 /* */
523 /* <Return> */
524 /* Error code. 0 means success. */
525 /* */
526 typedef int
527 (*QT_FT_Outline_LineToFunc)( QT_FT_Vector* to,
528 void* user );
529
530#define QT_FT_Outline_LineTo_Func QT_FT_Outline_LineToFunc
531
532 /*************************************************************************/
533 /* */
534 /* <FuncType> */
535 /* QT_FT_Outline_ConicToFunc */
536 /* */
537 /* <Description> */
538 /* A function pointer type use to describe the signature of a `conic */
539 /* to' function during outline walking/decomposition. */
540 /* */
541 /* A `conic to' is emitted to indicate a second-order Bezier arc in */
542 /* the outline. */
543 /* */
544 /* <Input> */
545 /* control :: An intermediate control point between the last position */
546 /* and the new target in `to'. */
547 /* */
548 /* to :: A pointer to the target end point of the conic arc. */
549 /* */
550 /* user :: A typeless pointer which is passed from the caller of */
551 /* the decomposition function. */
552 /* */
553 /* <Return> */
554 /* Error code. 0 means success. */
555 /* */
556 typedef int
557 (*QT_FT_Outline_ConicToFunc)( QT_FT_Vector* control,
558 QT_FT_Vector* to,
559 void* user );
560
561#define QT_FT_Outline_ConicTo_Func QT_FT_Outline_ConicToFunc
562
563 /*************************************************************************/
564 /* */
565 /* <FuncType> */
566 /* QT_FT_Outline_CubicToFunc */
567 /* */
568 /* <Description> */
569 /* A function pointer type used to describe the signature of a `cubic */
570 /* to' function during outline walking/decomposition. */
571 /* */
572 /* A `cubic to' is emitted to indicate a third-order Bezier arc. */
573 /* */
574 /* <Input> */
575 /* control1 :: A pointer to the first Bezier control point. */
576 /* */
577 /* control2 :: A pointer to the second Bezier control point. */
578 /* */
579 /* to :: A pointer to the target end point. */
580 /* */
581 /* user :: A typeless pointer which is passed from the caller of */
582 /* the decomposition function. */
583 /* */
584 /* <Return> */
585 /* Error code. 0 means success. */
586 /* */
587 typedef int
588 (*QT_FT_Outline_CubicToFunc)( QT_FT_Vector* control1,
589 QT_FT_Vector* control2,
590 QT_FT_Vector* to,
591 void* user );
592
593#define QT_FT_Outline_CubicTo_Func QT_FT_Outline_CubicToFunc
594
595
596 /*************************************************************************/
597 /* */
598 /* <Struct> */
599 /* QT_FT_Outline_Funcs */
600 /* */
601 /* <Description> */
602 /* A structure to hold various function pointers used during outline */
603 /* decomposition in order to emit segments, conic, and cubic Beziers, */
604 /* as well as `move to' and `close to' operations. */
605 /* */
606 /* <Fields> */
607 /* move_to :: The `move to' emitter. */
608 /* */
609 /* line_to :: The segment emitter. */
610 /* */
611 /* conic_to :: The second-order Bezier arc emitter. */
612 /* */
613 /* cubic_to :: The third-order Bezier arc emitter. */
614 /* */
615 /* shift :: The shift that is applied to coordinates before they */
616 /* are sent to the emitter. */
617 /* */
618 /* delta :: The delta that is applied to coordinates before they */
619 /* are sent to the emitter, but after the shift. */
620 /* */
621 /* <Note> */
622 /* The point coordinates sent to the emitters are the transformed */
623 /* version of the original coordinates (this is important for high */
624 /* accuracy during scan-conversion). The transformation is simple: */
625 /* */
626 /* x' = (x << shift) - delta */
627 /* y' = (x << shift) - delta */
628 /* */
629 /* Set the value of `shift' and `delta' to 0 to get the original */
630 /* point coordinates. */
631 /* */
643
644
645 /*************************************************************************/
646 /* */
647 /* <Section> */
648 /* basic_types */
649 /* */
650 /*************************************************************************/
651
652
653 /*************************************************************************/
654 /* */
655 /* <Macro> */
656 /* QT_FT_IMAGE_TAG */
657 /* */
658 /* <Description> */
659 /* This macro converts four letter tags into an unsigned long. */
660 /* */
661 /* <Note> */
662 /* Since many 16bit compilers don't like 32bit enumerations, you */
663 /* should redefine this macro in case of problems to something like */
664 /* this: */
665 /* */
666 /* #define QT_FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 ) value */
667 /* */
668 /* to get a simple enumeration without assigning special numbers. */
669 /* */
670#ifndef QT_FT_IMAGE_TAG
671#define QT_FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 )
672 value = ( ( (unsigned long)_x1 << 24 ) |
673 ( (unsigned long)_x2 << 16 ) |
674 ( (unsigned long)_x3 << 8 ) |
675 (unsigned long)_x4 )
676#endif /* QT_FT_IMAGE_TAG */
677
678
679 /*************************************************************************/
680 /* */
681 /* <Enum> */
682 /* QT_FT_Glyph_Format */
683 /* */
684 /* <Description> */
685 /* An enumeration type used to describe the format of a given glyph */
686 /* image. Note that this version of FreeType only supports two image */
687 /* formats, even though future font drivers will be able to register */
688 /* their own format. */
689 /* */
690 /* <Values> */
691 /* QT_FT_GLYPH_FORMAT_NONE :: */
692 /* The value 0 is reserved and does describe a glyph format. */
693 /* */
694 /* QT_FT_GLYPH_FORMAT_COMPOSITE :: */
695 /* The glyph image is a composite of several other images. This */
696 /* format is _only_ used with @QT_FT_LOAD_NO_RECURSE, and is used to */
697 /* report compound glyphs (like accented characters). */
698 /* */
699 /* QT_FT_GLYPH_FORMAT_BITMAP :: */
700 /* The glyph image is a bitmap, and can be described as an */
701 /* @QT_FT_Bitmap. You generally need to access the `bitmap' field of */
702 /* the @QT_FT_GlyphSlotRec structure to read it. */
703 /* */
704 /* QT_FT_GLYPH_FORMAT_OUTLINE :: */
705 /* The glyph image is a vertorial outline made of line segments */
706 /* and Bezier arcs; it can be described as an @QT_FT_Outline; you */
707 /* generally want to access the `outline' field of the */
708 /* @QT_FT_GlyphSlotRec structure to read it. */
709 /* */
710 /* QT_FT_GLYPH_FORMAT_PLOTTER :: */
711 /* The glyph image is a vectorial path with no inside/outside */
712 /* contours. Some Type 1 fonts, like those in the Hershey family, */
713 /* contain glyphs in this format. These are described as */
714 /* @QT_FT_Outline, but FreeType isn't currently capable of rendering */
715 /* them correctly. */
716 /* */
717 typedef enum QT_FT_Glyph_Format_
718 {
719 QT_FT_IMAGE_TAG( QT_FT_GLYPH_FORMAT_NONE, 0, 0, 0, 0 ),
720
721 QT_FT_IMAGE_TAG( QT_FT_GLYPH_FORMAT_COMPOSITE, 'c', 'o', 'm', 'p' ),
722 QT_FT_IMAGE_TAG( QT_FT_GLYPH_FORMAT_BITMAP, 'b', 'i', 't', 's' ),
723 QT_FT_IMAGE_TAG( QT_FT_GLYPH_FORMAT_OUTLINE, 'o', 'u', 't', 'l' ),
724 QT_FT_IMAGE_TAG( QT_FT_GLYPH_FORMAT_PLOTTER, 'p', 'l', 'o', 't' )
725
726 } QT_FT_Glyph_Format;
727
728
729 /*************************************************************************/
730 /* */
731 /* <Enum> */
732 /* qt_ft_glyph_format_xxx */
733 /* */
734 /* <Description> */
735 /* A list of decprecated constants. Use the corresponding */
736 /* @QT_FT_Glyph_Format values instead. */
737 /* */
738 /* <Values> */
739 /* qt_ft_glyph_format_none :: see @QT_FT_GLYPH_FORMAT_NONE */
740 /* qt_ft_glyph_format_composite :: see @QT_FT_GLYPH_FORMAT_COMPOSITE */
741 /* qt_ft_glyph_format_bitmap :: see @QT_FT_GLYPH_FORMAT_BITMAP */
742 /* qt_ft_glyph_format_outline :: see @QT_FT_GLYPH_FORMAT_OUTLINE */
743 /* qt_ft_glyph_format_plotter :: see @QT_FT_GLYPH_FORMAT_PLOTTER */
744 /* */
745#define qt_ft_glyph_format_none QT_FT_GLYPH_FORMAT_NONE
746#define qt_ft_glyph_format_composite QT_FT_GLYPH_FORMAT_COMPOSITE
747#define qt_ft_glyph_format_bitmap QT_FT_GLYPH_FORMAT_BITMAP
748#define qt_ft_glyph_format_outline QT_FT_GLYPH_FORMAT_OUTLINE
749#define qt_ft_glyph_format_plotter QT_FT_GLYPH_FORMAT_PLOTTER
750
751
752 /*************************************************************************/
753 /*************************************************************************/
754 /*************************************************************************/
755 /***** *****/
756 /***** R A S T E R D E F I N I T I O N S *****/
757 /***** *****/
758 /*************************************************************************/
759 /*************************************************************************/
760 /*************************************************************************/
761
762
763 /*************************************************************************/
764 /* */
765 /* A raster is a scan converter, in charge of rendering an outline into */
766 /* a a bitmap. This section contains the public API for rasters. */
767 /* */
768 /* Note that in FreeType 2, all rasters are now encapsulated within */
769 /* specific modules called `renderers'. See `freetype/ftrender.h' for */
770 /* more details on renderers. */
771 /* */
772 /*************************************************************************/
773
774
775 /*************************************************************************/
776 /* */
777 /* <Section> */
778 /* raster */
779 /* */
780 /* <Title> */
781 /* Scanline converter */
782 /* */
783 /* <Abstract> */
784 /* How vectorial outlines are converted into bitmaps and pixmaps. */
785 /* */
786 /* <Description> */
787 /* This section contains technical definitions. */
788 /* */
789 /*************************************************************************/
790
791
792 /*************************************************************************/
793 /* */
794 /* <Type> */
795 /* QT_FT_Raster */
796 /* */
797 /* <Description> */
798 /* A handle (pointer) to a raster object. Each object can be used */
799 /* independently to convert an outline into a bitmap or pixmap. */
800 /* */
801 typedef struct TRaster_ *QT_FT_Raster;
802
803
804 /*************************************************************************/
805 /* */
806 /* <Struct> */
807 /* QT_FT_Span */
808 /* */
809 /* <Description> */
810 /* A structure used to model a single span of gray (or black) pixels */
811 /* when rendering a monochrome or anti-aliased bitmap. */
812 /* */
813 /* <Fields> */
814 /* x :: The span's horizontal start position. */
815 /* */
816 /* len :: The span's length in pixels. */
817 /* */
818 /* coverage :: The span color/coverage, ranging from 0 (background) */
819 /* to 255 (foreground). Only used for anti-aliased */
820 /* rendering. */
821 /* */
822 /* <Note> */
823 /* This structure is used by the span drawing callback type named */
824 /* QT_FT_SpanFunc which takes the y-coordinate of the span as a */
825 /* a parameter. */
826 /* */
827 /* The coverage value is always between 0 and 255, even if the number */
828 /* of gray levels have been set through QT_FT_Set_Gray_Levels(). */
829 /* */
830 typedef struct QT_FT_Span_
831 {
832 int x;
833 int len;
834 int y;
835 unsigned char coverage;
836 } QT_FT_Span;
837
838
839 /*************************************************************************/
840 /* */
841 /* <FuncType> */
842 /* QT_FT_SpanFunc */
843 /* */
844 /* <Description> */
845 /* A function used as a call-back by the anti-aliased renderer in */
846 /* order to let client applications draw themselves the gray pixel */
847 /* spans on each scan line. */
848 /* */
849 /* <Input> */
850 /* y :: The scanline's y-coordinate. */
851 /* */
852 /* count :: The number of spans to draw on this scanline. */
853 /* */
854 /* spans :: A table of `count' spans to draw on the scanline. */
855 /* */
856 /* user :: User-supplied data that is passed to the callback. */
857 /* */
858 /* <Note> */
859 /* This callback allows client applications to directly render the */
860 /* gray spans of the anti-aliased bitmap to any kind of surfaces. */
861 /* */
862 /* This can be used to write anti-aliased outlines directly to a */
863 /* given background bitmap, and even perform translucency. */
864 /* */
865 /* Note that the `count' field cannot be greater than a fixed value */
866 /* defined by the QT_FT_MAX_GRAY_SPANS configuration macro in */
867 /* ftoption.h. By default, this value is set to 32, which means that */
868 /* if there are more than 32 spans on a given scanline, the callback */
869 /* will be called several times with the same `y' parameter in order */
870 /* to draw all callbacks. */
871 /* */
872 /* Otherwise, the callback is only called once per scan-line, and */
873 /* only for those scanlines that do have `gray' pixels on them. */
874 /* */
875 typedef void
876 (*QT_FT_SpanFunc)(int count,
877 const QT_FT_Span* spans,
878 void* worker);
879
880#define QT_FT_Raster_Span_Func QT_FT_SpanFunc
881
882
883 /*************************************************************************/
884 /* */
885 /* <FuncType> */
886 /* QT_FT_Raster_BitTest_Func */
887 /* */
888 /* <Description> */
889 /* THIS TYPE IS DEPRECATED. DO NOT USE IT. */
890 /* */
891 /* A function used as a call-back by the monochrome scan-converter */
892 /* to test whether a given target pixel is already set to the drawing */
893 /* `color'. These tests are crucial to implement drop-out control */
894 /* per-se the TrueType spec. */
895 /* */
896 /* <Input> */
897 /* y :: The pixel's y-coordinate. */
898 /* */
899 /* x :: The pixel's x-coordinate. */
900 /* */
901 /* user :: User-supplied data that is passed to the callback. */
902 /* */
903 /* <Return> */
904 /* 1 if the pixel is `set', 0 otherwise. */
905 /* */
906 typedef int
907 (*QT_FT_Raster_BitTest_Func)( int y,
908 int x,
909 void* user );
910
911
912 /*************************************************************************/
913 /* */
914 /* <FuncType> */
915 /* QT_FT_Raster_BitSet_Func */
916 /* */
917 /* <Description> */
918 /* THIS TYPE IS DEPRECATED. DO NOT USE IT. */
919 /* */
920 /* A function used as a call-back by the monochrome scan-converter */
921 /* to set an individual target pixel. This is crucial to implement */
922 /* drop-out control according to the TrueType specification. */
923 /* */
924 /* <Input> */
925 /* y :: The pixel's y-coordinate. */
926 /* */
927 /* x :: The pixel's x-coordinate. */
928 /* */
929 /* user :: User-supplied data that is passed to the callback. */
930 /* */
931 /* <Return> */
932 /* 1 if the pixel is `set', 0 otherwise. */
933 /* */
934 typedef void
935 (*QT_FT_Raster_BitSet_Func)( int y,
936 int x,
937 void* user );
938
939
940 /*************************************************************************/
941 /* */
942 /* <Enum> */
943 /* QT_FT_RASTER_FLAG_XXX */
944 /* */
945 /* <Description> */
946 /* A list of bit flag constants as used in the `flags' field of a */
947 /* @QT_FT_Raster_Params structure. */
948 /* */
949 /* <Values> */
950 /* QT_FT_RASTER_FLAG_DEFAULT :: This value is 0. */
951 /* */
952 /* QT_FT_RASTER_FLAG_AA :: This flag is set to indicate that an */
953 /* anti-aliased glyph image should be */
954 /* generated. Otherwise, it will be */
955 /* monochrome (1-bit). */
956 /* */
957 /* QT_FT_RASTER_FLAG_DIRECT :: This flag is set to indicate direct */
958 /* rendering. In this mode, client */
959 /* applications must provide their own span */
960 /* callback. This lets them directly */
961 /* draw or compose over an existing bitmap. */
962 /* If this bit is not set, the target */
963 /* pixmap's buffer _must_ be zeroed before */
964 /* rendering. */
965 /* */
966 /* Note that for now, direct rendering is */
967 /* only possible with anti-aliased glyphs. */
968 /* */
969 /* QT_FT_RASTER_FLAG_CLIP :: This flag is only used in direct */
970 /* rendering mode. If set, the output will */
971 /* be clipped to a box specified in the */
972 /* "clip_box" field of the QT_FT_Raster_Params */
973 /* structure. */
974 /* */
975 /* Note that by default, the glyph bitmap */
976 /* is clipped to the target pixmap, except */
977 /* in direct rendering mode where all spans */
978 /* are generated if no clipping box is set. */
979 /* */
980#define QT_FT_RASTER_FLAG_DEFAULT 0x0
981#define QT_FT_RASTER_FLAG_AA 0x1
982#define QT_FT_RASTER_FLAG_DIRECT 0x2
983#define QT_FT_RASTER_FLAG_CLIP 0x4
984
985 /* deprecated */
986#define qt_ft_raster_flag_default QT_FT_RASTER_FLAG_DEFAULT
987#define qt_ft_raster_flag_aa QT_FT_RASTER_FLAG_AA
988#define qt_ft_raster_flag_direct QT_FT_RASTER_FLAG_DIRECT
989#define qt_ft_raster_flag_clip QT_FT_RASTER_FLAG_CLIP
990
991
992 /*************************************************************************/
993 /* */
994 /* <Struct> */
995 /* QT_FT_Raster_Params */
996 /* */
997 /* <Description> */
998 /* A structure to hold the arguments used by a raster's render */
999 /* function. */
1000 /* */
1001 /* <Fields> */
1002 /* target :: The target bitmap. */
1003 /* */
1004 /* source :: A pointer to the source glyph image (e.g. an */
1005 /* QT_FT_Outline). */
1006 /* */
1007 /* flags :: The rendering flags. */
1008 /* */
1009 /* gray_spans :: The gray span drawing callback. */
1010 /* */
1011 /* black_spans :: The black span drawing callback. */
1012 /* */
1013 /* bit_test :: The bit test callback. UNIMPLEMENTED! */
1014 /* */
1015 /* bit_set :: The bit set callback. UNIMPLEMENTED! */
1016 /* */
1017 /* user :: User-supplied data that is passed to each drawing */
1018 /* callback. */
1019 /* */
1020 /* clip_box :: An optional clipping box. It is only used in */
1021 /* direct rendering mode. Note that coordinates here */
1022 /* should be expressed in _integer_ pixels (and not in */
1023 /* 26.6 fixed-point units). */
1024 /* */
1025 /* <Note> */
1026 /* An anti-aliased glyph bitmap is drawn if the QT_FT_RASTER_FLAG_AA bit */
1027 /* flag is set in the `flags' field, otherwise a monochrome bitmap */
1028 /* will be generated. */
1029 /* */
1030 /* If the QT_FT_RASTER_FLAG_DIRECT bit flag is set in `flags', the */
1031 /* raster will call the `gray_spans' callback to draw gray pixel */
1032 /* spans, in the case of an aa glyph bitmap, it will call */
1033 /* `black_spans', and `bit_test' and `bit_set' in the case of a */
1034 /* monochrome bitmap. This allows direct composition over a */
1035 /* pre-existing bitmap through user-provided callbacks to perform the */
1036 /* span drawing/composition. */
1037 /* */
1038 /* Note that the `bit_test' and `bit_set' callbacks are required when */
1039 /* rendering a monochrome bitmap, as they are crucial to implement */
1040 /* correct drop-out control as defined in the TrueType specification. */
1041 /* */
1042 typedef struct QT_FT_Raster_Params_
1043 {
1044 QT_FT_Bitmap* target;
1045 void* source;
1046 int flags;
1047 QT_FT_SpanFunc gray_spans;
1048 QT_FT_SpanFunc black_spans;
1049 QT_FT_Raster_BitTest_Func bit_test; /* doesn't work! */
1050 QT_FT_Raster_BitSet_Func bit_set; /* doesn't work! */
1051 void* user;
1052 QT_FT_BBox clip_box;
1053 int skip_spans;
1054
1055 } QT_FT_Raster_Params;
1056
1057
1058 /*************************************************************************/
1059 /* */
1060 /* <FuncType> */
1061 /* QT_FT_Raster_NewFunc */
1062 /* */
1063 /* <Description> */
1064 /* A function used to create a new raster object. */
1065 /* */
1066 /* <Input> */
1067 /* memory :: A handle to the memory allocator. */
1068 /* */
1069 /* <Output> */
1070 /* raster :: A handle to the new raster object. */
1071 /* */
1072 /* <Return> */
1073 /* Error code. 0 means success. */
1074 /* */
1075 /* <Note> */
1076 /* The `memory' parameter is a typeless pointer in order to avoid */
1077 /* un-wanted dependencies on the rest of the FreeType code. In */
1078 /* practice, it is a QT_FT_Memory, i.e., a handle to the standard */
1079 /* FreeType memory allocator. However, this field can be completely */
1080 /* ignored by a given raster implementation. */
1081 /* */
1082 typedef int
1083 (*QT_FT_Raster_NewFunc)( QT_FT_Raster* raster );
1084
1085#define QT_FT_Raster_New_Func QT_FT_Raster_NewFunc
1086
1087 /*************************************************************************/
1088 /* */
1089 /* <FuncType> */
1090 /* QT_FT_Raster_DoneFunc */
1091 /* */
1092 /* <Description> */
1093 /* A function used to destroy a given raster object. */
1094 /* */
1095 /* <Input> */
1096 /* raster :: A handle to the raster object. */
1097 /* */
1098 typedef void
1099 (*QT_FT_Raster_DoneFunc)( QT_FT_Raster raster );
1100
1101#define QT_FT_Raster_Done_Func QT_FT_Raster_DoneFunc
1102
1103 /*************************************************************************/
1104 /* */
1105 /* <FuncType> */
1106 /* QT_FT_Raster_ResetFunc */
1107 /* */
1108 /* <Description> */
1109 /* FreeType provides an area of memory called the `render pool', */
1110 /* available to all registered rasters. This pool can be freely used */
1111 /* during a given scan-conversion but is shared by all rasters. Its */
1112 /* content is thus transient. */
1113 /* */
1114 /* This function is called each time the render pool changes, or just */
1115 /* after a new raster object is created. */
1116 /* */
1117 /* <Input> */
1118 /* raster :: A handle to the new raster object. */
1119 /* */
1120 /* pool_base :: The address in memory of the render pool. */
1121 /* */
1122 /* pool_size :: The size in bytes of the render pool. */
1123 /* */
1124 /* <Note> */
1125 /* Rasters can ignore the render pool and rely on dynamic memory */
1126 /* allocation if they want to (a handle to the memory allocator is */
1127 /* passed to the raster constructor). However, this is not */
1128 /* recommended for efficiency purposes. */
1129 /* */
1130 typedef void
1131 (*QT_FT_Raster_ResetFunc)( QT_FT_Raster raster,
1132 unsigned char* pool_base,
1133 unsigned long pool_size );
1134
1135#define QT_FT_Raster_Reset_Func QT_FT_Raster_ResetFunc
1136
1137 /*************************************************************************/
1138 /* */
1139 /* <FuncType> */
1140 /* QT_FT_Raster_SetModeFunc */
1141 /* */
1142 /* <Description> */
1143 /* This function is a generic facility to change modes or attributes */
1144 /* in a given raster. This can be used for debugging purposes, or */
1145 /* simply to allow implementation-specific `features' in a given */
1146 /* raster module. */
1147 /* */
1148 /* <Input> */
1149 /* raster :: A handle to the new raster object. */
1150 /* */
1151 /* mode :: A 4-byte tag used to name the mode or property. */
1152 /* */
1153 /* args :: A pointer to the new mode/property to use. */
1154 /* */
1155 typedef int
1156 (*QT_FT_Raster_SetModeFunc)( QT_FT_Raster raster,
1157 unsigned long mode,
1158 void* args );
1159
1160#define QT_FT_Raster_Set_Mode_Func QT_FT_Raster_SetModeFunc
1161
1162 /*************************************************************************/
1163 /* */
1164 /* <FuncType> */
1165 /* QT_FT_Raster_RenderFunc */
1166 /* */
1167 /* <Description> */
1168 /* Invokes a given raster to scan-convert a given glyph image into a */
1169 /* target bitmap. */
1170 /* */
1171 /* <Input> */
1172 /* raster :: A handle to the raster object. */
1173 /* */
1174 /* params :: A pointer to a QT_FT_Raster_Params structure used to store */
1175 /* the rendering parameters. */
1176 /* */
1177 /* <Return> */
1178 /* Error code. 0 means success. */
1179 /* */
1180 /* <Note> */
1181 /* The exact format of the source image depends on the raster's glyph */
1182 /* format defined in its QT_FT_Raster_Funcs structure. It can be an */
1183 /* QT_FT_Outline or anything else in order to support a large array of */
1184 /* glyph formats. */
1185 /* */
1186 /* Note also that the render function can fail and return a */
1187 /* QT_FT_Err_Unimplemented_Feature error code if the raster used does */
1188 /* not support direct composition. */
1189 /* */
1190 /* XXX: For now, the standard raster doesn't support direct */
1191 /* composition but this should change for the final release (see */
1192 /* the files demos/src/ftgrays.c and demos/src/ftgrays2.c for */
1193 /* examples of distinct implementations which support direct */
1194 /* composition). */
1195 /* */
1196 typedef int
1197 (*QT_FT_Raster_RenderFunc)( QT_FT_Raster raster,
1198 QT_FT_Raster_Params* params );
1199
1200#define QT_FT_Raster_Render_Func QT_FT_Raster_RenderFunc
1201
1202 /*************************************************************************/
1203 /* */
1204 /* <Struct> */
1205 /* QT_FT_Raster_Funcs */
1206 /* */
1207 /* <Description> */
1208 /* A structure used to describe a given raster class to the library. */
1209 /* */
1210 /* <Fields> */
1211 /* glyph_format :: The supported glyph format for this raster. */
1212 /* */
1213 /* raster_new :: The raster constructor. */
1214 /* */
1215 /* raster_reset :: Used to reset the render pool within the raster. */
1216 /* */
1217 /* raster_render :: A function to render a glyph into a given bitmap. */
1218 /* */
1219 /* raster_done :: The raster destructor. */
1220 /* */
1231
1232
1233 /* */
1234
1235
1236QT_FT_END_HEADER
1237
1238#endif /* __FTIMAGE_H__ */
1239
1240
1241/* END */
QT_FT_RASTER_FLAG_CLIP
#define QT_FT_RASTER_FLAG_CLIP
Definition qrasterdefs_p.h:983
QT_FT_Raster_NewFunc
int(* QT_FT_Raster_NewFunc)(QT_FT_Raster *raster)
Definition qrasterdefs_p.h:1083
QT_FT_OUTLINE_SINGLE_PASS
#define QT_FT_OUTLINE_SINGLE_PASS
Definition qrasterdefs_p.h:431
QT_FT_OUTLINE_REVERSE_FILL
#define QT_FT_OUTLINE_REVERSE_FILL
Definition qrasterdefs_p.h:427
QT_FT_OUTLINE_HIGH_PRECISION
#define QT_FT_OUTLINE_HIGH_PRECISION
Definition qrasterdefs_p.h:430
QT_FT_OUTLINE_EVEN_ODD_FILL
#define QT_FT_OUTLINE_EVEN_ODD_FILL
Definition qrasterdefs_p.h:426
QT_FT_Outline_LineToFunc
int(* QT_FT_Outline_LineToFunc)(QT_FT_Vector *to, void *user)
Definition qrasterdefs_p.h:527
QT_FT_Raster_DoneFunc
void(* QT_FT_Raster_DoneFunc)(QT_FT_Raster raster)
Definition qrasterdefs_p.h:1099
QT_FT_RASTER_FLAG_DIRECT
#define QT_FT_RASTER_FLAG_DIRECT
Definition qrasterdefs_p.h:982
QT_FT_OUTLINE_NONE
#define QT_FT_OUTLINE_NONE
Definition qrasterdefs_p.h:424
QT_FT_CURVE_TAG_ON
#define QT_FT_CURVE_TAG_ON
Definition qrasterdefs_p.h:464
QT_FT_Raster_BitTest_Func
int(* QT_FT_Raster_BitTest_Func)(int y, int x, void *user)
Definition qrasterdefs_p.h:907
QT_FT_SpanFunc
void(* QT_FT_SpanFunc)(int count, const QT_FT_Span *spans, void *worker)
Definition qrasterdefs_p.h:876
QT_FT_Raster_RenderFunc
int(* QT_FT_Raster_RenderFunc)(QT_FT_Raster raster, QT_FT_Raster_Params *params)
Definition qrasterdefs_p.h:1197
QT_FT_Outline_ConicToFunc
int(* QT_FT_Outline_ConicToFunc)(QT_FT_Vector *control, QT_FT_Vector *to, void *user)
Definition qrasterdefs_p.h:557
QT_FT_RASTER_FLAG_DEFAULT
#define QT_FT_RASTER_FLAG_DEFAULT
Definition qrasterdefs_p.h:980
QT_FT_OUTLINE_OWNER
#define QT_FT_OUTLINE_OWNER
Definition qrasterdefs_p.h:425
QT_FT_Pos
QT_FT_BEGIN_HEADER typedef signed int QT_FT_Pos
Definition qrasterdefs_p.h:65
QT_FT_CURVE_TAG_CONIC
#define QT_FT_CURVE_TAG_CONIC
Definition qrasterdefs_p.h:465
QT_FT_CURVE_TAG_TOUCH_Y
#define QT_FT_CURVE_TAG_TOUCH_Y
Definition qrasterdefs_p.h:469
QT_FT_Pixel_Mode_
QT_FT_Pixel_Mode_
Definition qrasterdefs_p.h:164
QT_FT_PIXEL_MODE_GRAY
@ QT_FT_PIXEL_MODE_GRAY
Definition qrasterdefs_p.h:167
QT_FT_PIXEL_MODE_LCD
@ QT_FT_PIXEL_MODE_LCD
Definition qrasterdefs_p.h:170
QT_FT_PIXEL_MODE_NONE
@ QT_FT_PIXEL_MODE_NONE
Definition qrasterdefs_p.h:165
QT_FT_PIXEL_MODE_MAX
@ QT_FT_PIXEL_MODE_MAX
Definition qrasterdefs_p.h:173
QT_FT_PIXEL_MODE_GRAY4
@ QT_FT_PIXEL_MODE_GRAY4
Definition qrasterdefs_p.h:169
QT_FT_PIXEL_MODE_GRAY2
@ QT_FT_PIXEL_MODE_GRAY2
Definition qrasterdefs_p.h:168
QT_FT_PIXEL_MODE_MONO
@ QT_FT_PIXEL_MODE_MONO
Definition qrasterdefs_p.h:166
QT_FT_PIXEL_MODE_LCD_V
@ QT_FT_PIXEL_MODE_LCD_V
Definition qrasterdefs_p.h:171
QT_FT_Raster_BitSet_Func
void(* QT_FT_Raster_BitSet_Func)(int y, int x, void *user)
Definition qrasterdefs_p.h:935
QT_FT_CURVE_TAG_TOUCH_X
#define QT_FT_CURVE_TAG_TOUCH_X
Definition qrasterdefs_p.h:468
QT_FT_IMAGE_TAG
#define QT_FT_IMAGE_TAG(value, _x1, _x2, _x3, _x4)
Definition qrasterdefs_p.h:671
QT_FT_CURVE_TAG_CUBIC
#define QT_FT_CURVE_TAG_CUBIC
Definition qrasterdefs_p.h:466
QT_FT_Raster
struct TRaster_ * QT_FT_Raster
Definition qrasterdefs_p.h:801
QT_FT_Outline_MoveToFunc
int(* QT_FT_Outline_MoveToFunc)(QT_FT_Vector *to, void *user)
Definition qrasterdefs_p.h:501
QT_FT_RASTER_FLAG_AA
#define QT_FT_RASTER_FLAG_AA
Definition qrasterdefs_p.h:981
QT_FT_Raster_SetModeFunc
int(* QT_FT_Raster_SetModeFunc)(QT_FT_Raster raster, unsigned long mode, void *args)
Definition qrasterdefs_p.h:1156
QT_FT_Raster_ResetFunc
void(* QT_FT_Raster_ResetFunc)(QT_FT_Raster raster, unsigned char *pool_base, unsigned long pool_size)
Definition qrasterdefs_p.h:1131
QT_FT_Outline_CubicToFunc
int(* QT_FT_Outline_CubicToFunc)(QT_FT_Vector *control1, QT_FT_Vector *control2, QT_FT_Vector *to, void *user)
Definition qrasterdefs_p.h:588
QT_FT_OUTLINE_IGNORE_DROPOUTS
#define QT_FT_OUTLINE_IGNORE_DROPOUTS
Definition qrasterdefs_p.h:428
QT_FT_Glyph_Format_
QT_FT_Glyph_Format_
Definition qrasterdefs_p.h:718
QT_FT_BBox_
Definition qrasterdefs_p.h:109
QT_FT_BBox_::xMax
QT_FT_Pos xMax
Definition qrasterdefs_p.h:111
QT_FT_BBox_::xMin
QT_FT_Pos xMin
Definition qrasterdefs_p.h:110
QT_FT_BBox_::yMax
QT_FT_Pos yMax
Definition qrasterdefs_p.h:111
QT_FT_BBox_::yMin
QT_FT_Pos yMin
Definition qrasterdefs_p.h:110
QT_FT_Bitmap_
Definition qrasterdefs_p.h:293
QT_FT_Bitmap_::buffer
unsigned char * buffer
Definition qrasterdefs_p.h:297
QT_FT_Bitmap_::palette_mode
char palette_mode
Definition qrasterdefs_p.h:300
QT_FT_Bitmap_::rows
int rows
Definition qrasterdefs_p.h:294
QT_FT_Bitmap_::pitch
int pitch
Definition qrasterdefs_p.h:296
QT_FT_Bitmap_::pixel_mode
char pixel_mode
Definition qrasterdefs_p.h:299
QT_FT_Bitmap_::num_grays
short num_grays
Definition qrasterdefs_p.h:298
QT_FT_Bitmap_::palette
void * palette
Definition qrasterdefs_p.h:301
QT_FT_Bitmap_::width
int width
Definition qrasterdefs_p.h:295
QT_FT_Outline_Funcs_
Definition qrasterdefs_p.h:633
QT_FT_Outline_Funcs_::line_to
QT_FT_Outline_LineToFunc line_to
Definition qrasterdefs_p.h:635
QT_FT_Outline_Funcs_::delta
QT_FT_Pos delta
Definition qrasterdefs_p.h:640
QT_FT_Outline_Funcs_::conic_to
QT_FT_Outline_ConicToFunc conic_to
Definition qrasterdefs_p.h:636
QT_FT_Outline_Funcs_::shift
int shift
Definition qrasterdefs_p.h:639
QT_FT_Outline_Funcs_::cubic_to
QT_FT_Outline_CubicToFunc cubic_to
Definition qrasterdefs_p.h:637
QT_FT_Outline_Funcs_::move_to
QT_FT_Outline_MoveToFunc move_to
Definition qrasterdefs_p.h:634
QT_FT_Outline_
Definition qrasterdefs_p.h:351
QT_FT_Outline_::flags
int flags
Definition qrasterdefs_p.h:359
QT_FT_Outline_::contours
int * contours
Definition qrasterdefs_p.h:357
QT_FT_Outline_::tags
char * tags
Definition qrasterdefs_p.h:356
QT_FT_Outline_::points
QT_FT_Vector * points
Definition qrasterdefs_p.h:355
QT_FT_Outline_::n_points
int n_points
Definition qrasterdefs_p.h:353
QT_FT_Outline_::n_contours
int n_contours
Definition qrasterdefs_p.h:352
QT_FT_Raster_Funcs_
Definition qrasterdefs_p.h:1222
QT_FT_Raster_Funcs_::raster_done
QT_FT_Raster_DoneFunc raster_done
Definition qrasterdefs_p.h:1228
QT_FT_Raster_Funcs_::raster_set_mode
QT_FT_Raster_SetModeFunc raster_set_mode
Definition qrasterdefs_p.h:1226
QT_FT_Raster_Funcs_::raster_reset
QT_FT_Raster_ResetFunc raster_reset
Definition qrasterdefs_p.h:1225
QT_FT_Raster_Funcs_::glyph_format
QT_FT_Glyph_Format glyph_format
Definition qrasterdefs_p.h:1223
QT_FT_Raster_Funcs_::raster_render
QT_FT_Raster_RenderFunc raster_render
Definition qrasterdefs_p.h:1227
QT_FT_Raster_Funcs_::raster_new
QT_FT_Raster_NewFunc raster_new
Definition qrasterdefs_p.h:1224
QT_FT_Raster_Params_
Definition qrasterdefs_p.h:1043
QT_FT_Raster_Params_::target
QT_FT_Bitmap * target
Definition qrasterdefs_p.h:1044
QT_FT_Raster_Params_::bit_test
QT_FT_Raster_BitTest_Func bit_test
Definition qrasterdefs_p.h:1049
QT_FT_Raster_Params_::clip_box
QT_FT_BBox clip_box
Definition qrasterdefs_p.h:1052
QT_FT_Raster_Params_::flags
int flags
Definition qrasterdefs_p.h:1046
QT_FT_Raster_Params_::source
void * source
Definition qrasterdefs_p.h:1045
QT_FT_Raster_Params_::gray_spans
QT_FT_SpanFunc gray_spans
Definition qrasterdefs_p.h:1047
QT_FT_Raster_Params_::bit_set
QT_FT_Raster_BitSet_Func bit_set
Definition qrasterdefs_p.h:1050
QT_FT_Raster_Params_::skip_spans
int skip_spans
Definition qrasterdefs_p.h:1053
QT_FT_Raster_Params_::black_spans
QT_FT_SpanFunc black_spans
Definition qrasterdefs_p.h:1048
QT_FT_Raster_Params_::user
void * user
Definition qrasterdefs_p.h:1051
QT_FT_Span_
Definition qrasterdefs_p.h:831
QT_FT_Span_::x
int x
Definition qrasterdefs_p.h:832
QT_FT_Span_::coverage
unsigned char coverage
Definition qrasterdefs_p.h:835
QT_FT_Span_::len
int len
Definition qrasterdefs_p.h:833
QT_FT_Span_::y
int y
Definition qrasterdefs_p.h:834
QT_FT_Vector_
Definition qrasterdefs_p.h:82
QT_FT_Vector_::y
QT_FT_Pos y
Definition qrasterdefs_p.h:84
QT_FT_Vector_::x
QT_FT_Pos x
Definition qrasterdefs_p.h:83
TRaster_
Definition qgrayraster.c:292