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qrasterdefs_p.h
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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// Qt-Security score:significant reason:default
4
5/***************************************************************************/
6/* */
7/* ftimage.h */
8/* */
9/* FreeType glyph image formats and default raster interface */
10/* (specification). */
11/* */
12/* Copyright 1996-2001, 2002, 2003, 2004 by */
13/* David Turner, Robert Wilhelm, and Werner Lemberg. */
14/* */
15/* This file is part of the FreeType project, and may only be used, */
16/* modified, and distributed under the terms of the FreeType project */
17/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
18/* this file you indicate that you have read the license and */
19/* understand and accept it fully. */
20/* */
21/***************************************************************************/
22
23 /*************************************************************************/
24 /* */
25 /* Note: A `raster' is simply a scan-line converter, used to render */
26 /* QT_FT_Outlines into QT_FT_Bitmaps. */
27 /* */
28 /*************************************************************************/
29
30
31#ifndef __QT_FTIMAGE_H__
32#define __QT_FTIMAGE_H__
33
34/*
35// W A R N I N G
36// -------------
37//
38// This file is not part of the Qt API. It exists purely as an
39// implementation detail. This header file may change from version to
40// version without notice, or even be removed.
41//
42// We mean it.
43*/
44
45QT_FT_BEGIN_HEADER
46
47 /*************************************************************************/
48 /* */
49 /* <Section> */
50 /* basic_types */
51 /* */
52 /*************************************************************************/
53
54
55 /*************************************************************************/
56 /* */
57 /* <Type> */
58 /* QT_FT_Pos */
59 /* */
60 /* <Description> */
61 /* The type QT_FT_Pos is a 32-bit integer used to store vectorial */
62 /* coordinates. Depending on the context, these can represent */
63 /* distances in integer font units, or 16,16, or 26.6 fixed float */
64 /* pixel coordinates. */
65 /* */
66 typedef signed int QT_FT_Pos;
67
68
69 /*************************************************************************/
70 /* */
71 /* <Struct> */
72 /* QT_FT_Vector */
73 /* */
74 /* <Description> */
75 /* A simple structure used to store a 2D vector; coordinates are of */
76 /* the QT_FT_Pos type. */
77 /* */
78 /* <Fields> */
79 /* x :: The horizontal coordinate. */
80 /* y :: The vertical coordinate. */
81 /* */
82 typedef struct QT_FT_Vector_
83 {
84 QT_FT_Pos x;
85 QT_FT_Pos y;
86
87 } QT_FT_Vector;
88
89
90 /*************************************************************************/
91 /* */
92 /* <Struct> */
93 /* QT_FT_BBox */
94 /* */
95 /* <Description> */
96 /* A structure used to hold an outline's bounding box, i.e., the */
97 /* coordinates of its extrema in the horizontal and vertical */
98 /* directions. */
99 /* */
100 /* <Fields> */
101 /* xMin :: The horizontal minimum (left-most). */
102 /* */
103 /* yMin :: The vertical minimum (bottom-most). */
104 /* */
105 /* xMax :: The horizontal maximum (right-most). */
106 /* */
107 /* yMax :: The vertical maximum (top-most). */
108 /* */
109 typedef struct QT_FT_BBox_
110 {
111 QT_FT_Pos xMin, yMin;
112 QT_FT_Pos xMax, yMax;
113
114 } QT_FT_BBox;
115
116
117 /*************************************************************************/
118 /* */
119 /* <Enum> */
120 /* QT_FT_Pixel_Mode */
121 /* */
122 /* <Description> */
123 /* An enumeration type used to describe the format of pixels in a */
124 /* given bitmap. Note that additional formats may be added in the */
125 /* future. */
126 /* */
127 /* <Values> */
128 /* QT_FT_PIXEL_MODE_NONE :: */
129 /* Value 0 is reserved. */
130 /* */
131 /* QT_FT_PIXEL_MODE_MONO :: */
132 /* A monochrome bitmap, using 1 bit per pixel. Note that pixels */
133 /* are stored in most-significant order (MSB), which means that */
134 /* the left-most pixel in a byte has value 128. */
135 /* */
136 /* QT_FT_PIXEL_MODE_GRAY :: */
137 /* An 8-bit bitmap, generally used to represent anti-aliased glyph */
138 /* images. Each pixel is stored in one byte. Note that the number */
139 /* of value "gray" levels is stored in the `num_bytes' field of */
140 /* the @QT_FT_Bitmap structure (it generally is 256). */
141 /* */
142 /* QT_FT_PIXEL_MODE_GRAY2 :: */
143 /* A 2-bit/pixel bitmap, used to represent embedded anti-aliased */
144 /* bitmaps in font files according to the OpenType specification. */
145 /* We haven't found a single font using this format, however. */
146 /* */
147 /* QT_FT_PIXEL_MODE_GRAY4 :: */
148 /* A 4-bit/pixel bitmap, used to represent embedded anti-aliased */
149 /* bitmaps in font files according to the OpenType specification. */
150 /* We haven't found a single font using this format, however. */
151 /* */
152 /* QT_FT_PIXEL_MODE_LCD :: */
153 /* An 8-bit bitmap, used to represent RGB or BGR decimated glyph */
154 /* images used for display on LCD displays; the bitmap's width is */
155 /* three times wider than the original glyph image. See also */
156 /* @QT_FT_RENDER_MODE_LCD. */
157 /* */
158 /* QT_FT_PIXEL_MODE_LCD_V :: */
159 /* An 8-bit bitmap, used to represent RGB or BGR decimated glyph */
160 /* images used for display on rotated LCD displays; the bitmap's */
161 /* height is three times taller than the original glyph image. */
162 /* See also @QT_FT_RENDER_MODE_LCD_V. */
163 /* */
177
178
179 /*************************************************************************/
180 /* */
181 /* <Enum> */
182 /* qt_ft_pixel_mode_xxx */
183 /* */
184 /* <Description> */
185 /* A list of deprecated constants. Use the corresponding */
186 /* @QT_FT_Pixel_Mode values instead. */
187 /* */
188 /* <Values> */
189 /* qt_ft_pixel_mode_none :: see @QT_FT_PIXEL_MODE_NONE */
190 /* qt_ft_pixel_mode_mono :: see @QT_FT_PIXEL_MODE_MONO */
191 /* qt_ft_pixel_mode_grays :: see @QT_FT_PIXEL_MODE_GRAY */
192 /* qt_ft_pixel_mode_pal2 :: see @QT_FT_PIXEL_MODE_GRAY2 */
193 /* qt_ft_pixel_mode_pal4 :: see @QT_FT_PIXEL_MODE_GRAY4 */
194 /* */
195#define qt_ft_pixel_mode_none QT_FT_PIXEL_MODE_NONE
196#define qt_ft_pixel_mode_mono QT_FT_PIXEL_MODE_MONO
197#define qt_ft_pixel_mode_grays QT_FT_PIXEL_MODE_GRAY
198#define qt_ft_pixel_mode_pal2 QT_FT_PIXEL_MODE_GRAY2
199#define qt_ft_pixel_mode_pal4 QT_FT_PIXEL_MODE_GRAY4
200
201 /* */
202
203#if 0
204
205 /*************************************************************************/
206 /* */
207 /* <Enum> */
208 /* QT_FT_Palette_Mode */
209 /* */
210 /* <Description> */
211 /* THIS TYPE IS DEPRECATED. DO NOT USE IT! */
212 /* */
213 /* An enumeration type used to describe the format of a bitmap */
214 /* palette, used with qt_ft_pixel_mode_pal4 and qt_ft_pixel_mode_pal8. */
215 /* */
216 /* <Fields> */
217 /* qt_ft_palette_mode_rgb :: The palette is an array of 3-bytes RGB */
218 /* records. */
219 /* */
220 /* qt_ft_palette_mode_rgba :: The palette is an array of 4-bytes RGBA */
221 /* records. */
222 /* */
223 /* <Note> */
224 /* As qt_ft_pixel_mode_pal2, pal4 and pal8 are currently unused by */
225 /* FreeType, these types are not handled by the library itself. */
226 /* */
227 typedef enum QT_FT_Palette_Mode_
228 {
229 qt_ft_palette_mode_rgb = 0,
230 qt_ft_palette_mode_rgba,
231
232 qt_ft_palettte_mode_max /* do not remove */
233
234 } QT_FT_Palette_Mode;
235
236 /* */
237
238#endif
239
240
241 /*************************************************************************/
242 /* */
243 /* <Struct> */
244 /* QT_FT_Bitmap */
245 /* */
246 /* <Description> */
247 /* A structure used to describe a bitmap or pixmap to the raster. */
248 /* Note that we now manage pixmaps of various depths through the */
249 /* `pixel_mode' field. */
250 /* */
251 /* <Fields> */
252 /* rows :: The number of bitmap rows. */
253 /* */
254 /* width :: The number of pixels in bitmap row. */
255 /* */
256 /* pitch :: The pitch's absolute value is the number of bytes */
257 /* taken by one bitmap row, including padding. */
258 /* However, the pitch is positive when the bitmap has */
259 /* a `down' flow, and negative when it has an `up' */
260 /* flow. In all cases, the pitch is an offset to add */
261 /* to a bitmap pointer in order to go down one row. */
262 /* */
263 /* buffer :: A typeless pointer to the bitmap buffer. This */
264 /* value should be aligned on 32-bit boundaries in */
265 /* most cases. */
266 /* */
267 /* num_grays :: This field is only used with */
268 /* `QT_FT_PIXEL_MODE_GRAY'; it gives the number of gray */
269 /* levels used in the bitmap. */
270 /* */
271 /* pixel_mode :: The pixel mode, i.e., how pixel bits are stored. */
272 /* See @QT_FT_Pixel_Mode for possible values. */
273 /* */
274 /* palette_mode :: This field is only used with paletted pixel modes; */
275 /* it indicates how the palette is stored. */
276 /* */
277 /* palette :: A typeless pointer to the bitmap palette; only */
278 /* used for paletted pixel modes. */
279 /* */
280 /* <Note> */
281 /* For now, the only pixel mode supported by FreeType are mono and */
282 /* grays. However, drivers might be added in the future to support */
283 /* more `colorful' options. */
284 /* */
285 /* When using pixel modes pal2, pal4 and pal8 with a void `palette' */
286 /* field, a gray pixmap with respectively 4, 16, and 256 levels of */
287 /* gray is assumed. This, in order to be compatible with some */
288 /* embedded bitmap formats defined in the TrueType specification. */
289 /* */
290 /* Note that no font was found presenting such embedded bitmaps, so */
291 /* this is currently completely unhandled by the library. */
292 /* */
293 typedef struct QT_FT_Bitmap_
294 {
295 int rows;
296 int width;
297 int pitch;
298 unsigned char* buffer;
299 short num_grays;
300 char pixel_mode;
301 char palette_mode;
302 void* palette;
303
304 } QT_FT_Bitmap;
305
306
307 /*************************************************************************/
308 /* */
309 /* <Section> */
310 /* outline_processing */
311 /* */
312 /*************************************************************************/
313
314
315 /*************************************************************************/
316 /* */
317 /* <Struct> */
318 /* QT_FT_Outline */
319 /* */
320 /* <Description> */
321 /* This structure is used to describe an outline to the scan-line */
322 /* converter. */
323 /* */
324 /* <Fields> */
325 /* n_contours :: The number of contours in the outline. */
326 /* */
327 /* n_points :: The number of points in the outline. */
328 /* */
329 /* points :: A pointer to an array of `n_points' QT_FT_Vector */
330 /* elements, giving the outline's point coordinates. */
331 /* */
332 /* tags :: A pointer to an array of `n_points' chars, giving */
333 /* each outline point's type. If bit 0 is unset, the */
334 /* point is `off' the curve, i.e. a Bezier control */
335 /* point, while it is `on' when set. */
336 /* */
337 /* Bit 1 is meaningful for `off' points only. If set, */
338 /* it indicates a third-order Bezier arc control point; */
339 /* and a second-order control point if unset. */
340 /* */
341 /* contours :: An array of `n_contours' shorts, giving the end */
342 /* point of each contour within the outline. For */
343 /* example, the first contour is defined by the points */
344 /* `0' to `contours[0]', the second one is defined by */
345 /* the points `contours[0]+1' to `contours[1]', etc. */
346 /* */
347 /* flags :: A set of bit flags used to characterize the outline */
348 /* and give hints to the scan-converter and hinter on */
349 /* how to convert/grid-fit it. See QT_FT_Outline_Flags. */
350 /* */
351 typedef struct QT_FT_Outline_
352 {
353 int n_contours; /* number of contours in glyph */
354 int n_points; /* number of points in the glyph */
355
356 QT_FT_Vector* points; /* the outline's points */
357 char* tags; /* the points flags */
358 int* contours; /* the contour end points */
359
360 int flags; /* outline masks */
361
362 } QT_FT_Outline;
363
364
365 /*************************************************************************/
366 /* */
367 /* <Enum> */
368 /* QT_FT_OUTLINE_FLAGS */
369 /* */
370 /* <Description> */
371 /* A list of bit-field constants use for the flags in an outline's */
372 /* `flags' field. */
373 /* */
374 /* <Values> */
375 /* QT_FT_OUTLINE_NONE :: Value 0 is reserved. */
376 /* */
377 /* QT_FT_OUTLINE_OWNER :: If set, this flag indicates that the */
378 /* outline's field arrays (i.e. */
379 /* `points', `flags' & `contours') are */
380 /* `owned' by the outline object, and */
381 /* should thus be freed when it is */
382 /* destroyed. */
383 /* */
384 /* QT_FT_OUTLINE_EVEN_ODD_FILL :: By default, outlines are filled using */
385 /* the non-zero winding rule. If set to */
386 /* 1, the outline will be filled using */
387 /* the even-odd fill rule (only works */
388 /* with the smooth raster). */
389 /* */
390 /* QT_FT_OUTLINE_REVERSE_FILL :: By default, outside contours of an */
391 /* outline are oriented in clock-wise */
392 /* direction, as defined in the TrueType */
393 /* specification. This flag is set if */
394 /* the outline uses the opposite */
395 /* direction (typically for Type 1 */
396 /* fonts). This flag is ignored by the */
397 /* scan-converter. However, it is very */
398 /* important for the auto-hinter. */
399 /* */
400 /* QT_FT_OUTLINE_IGNORE_DROPOUTS :: By default, the scan converter will */
401 /* try to detect drop-outs in an outline */
402 /* and correct the glyph bitmap to */
403 /* ensure consistent shape continuity. */
404 /* If set, this flag hints the scan-line */
405 /* converter to ignore such cases. */
406 /* */
407 /* QT_FT_OUTLINE_HIGH_PRECISION :: This flag indicates that the */
408 /* scan-line converter should try to */
409 /* convert this outline to bitmaps with */
410 /* the highest possible quality. It is */
411 /* typically set for small character */
412 /* sizes. Note that this is only a */
413 /* hint, that might be completely */
414 /* ignored by a given scan-converter. */
415 /* */
416 /* QT_FT_OUTLINE_SINGLE_PASS :: This flag is set to force a given */
417 /* scan-converter to only use a single */
418 /* pass over the outline to render a */
419 /* bitmap glyph image. Normally, it is */
420 /* set for very large character sizes. */
421 /* It is only a hint, that might be */
422 /* completely ignored by a given */
423 /* scan-converter. */
424 /* */
425#define QT_FT_OUTLINE_NONE 0x0
426#define QT_FT_OUTLINE_OWNER 0x1
427#define QT_FT_OUTLINE_EVEN_ODD_FILL 0x2
428#define QT_FT_OUTLINE_REVERSE_FILL 0x4
429#define QT_FT_OUTLINE_IGNORE_DROPOUTS 0x8
430
431#define QT_FT_OUTLINE_HIGH_PRECISION 0x100
432#define QT_FT_OUTLINE_SINGLE_PASS 0x200
433
434
435 /*************************************************************************
436 *
437 * @enum:
438 * qt_ft_outline_flags
439 *
440 * @description:
441 * These constants are deprecated. Please use the corresponding
442 * @QT_FT_OUTLINE_FLAGS values.
443 *
444 * @values:
445 * qt_ft_outline_none :: See @QT_FT_OUTLINE_NONE.
446 * qt_ft_outline_owner :: See @QT_FT_OUTLINE_OWNER.
447 * qt_ft_outline_even_odd_fill :: See @QT_FT_OUTLINE_EVEN_ODD_FILL.
448 * qt_ft_outline_reverse_fill :: See @QT_FT_OUTLINE_REVERSE_FILL.
449 * qt_ft_outline_ignore_dropouts :: See @QT_FT_OUTLINE_IGNORE_DROPOUTS.
450 * qt_ft_outline_high_precision :: See @QT_FT_OUTLINE_HIGH_PRECISION.
451 * qt_ft_outline_single_pass :: See @QT_FT_OUTLINE_SINGLE_PASS.
452 */
453#define qt_ft_outline_none QT_FT_OUTLINE_NONE
454#define qt_ft_outline_owner QT_FT_OUTLINE_OWNER
455#define qt_ft_outline_even_odd_fill QT_FT_OUTLINE_EVEN_ODD_FILL
456#define qt_ft_outline_reverse_fill QT_FT_OUTLINE_REVERSE_FILL
457#define qt_ft_outline_ignore_dropouts QT_FT_OUTLINE_IGNORE_DROPOUTS
458#define qt_ft_outline_high_precision QT_FT_OUTLINE_HIGH_PRECISION
459#define qt_ft_outline_single_pass QT_FT_OUTLINE_SINGLE_PASS
460
461 /* */
462
463#define QT_FT_CURVE_TAG( flag ) ( flag & 3 )
464
465#define QT_FT_CURVE_TAG_ON 1
466#define QT_FT_CURVE_TAG_CONIC 0
467#define QT_FT_CURVE_TAG_CUBIC 2
468
469#define QT_FT_CURVE_TAG_TOUCH_X 8 /* reserved for the TrueType hinter */
470#define QT_FT_CURVE_TAG_TOUCH_Y 16 /* reserved for the TrueType hinter */
471
472#define QT_FT_CURVE_TAG_TOUCH_BOTH ( QT_FT_CURVE_TAG_TOUCH_X |
473 QT_FT_CURVE_TAG_TOUCH_Y )
474
475#define QT_FT_Curve_Tag_On QT_FT_CURVE_TAG_ON
476#define QT_FT_Curve_Tag_Conic QT_FT_CURVE_TAG_CONIC
477#define QT_FT_Curve_Tag_Cubic QT_FT_CURVE_TAG_CUBIC
478#define QT_FT_Curve_Tag_Touch_X QT_FT_CURVE_TAG_TOUCH_X
479#define QT_FT_Curve_Tag_Touch_Y QT_FT_CURVE_TAG_TOUCH_Y
480
481 /*************************************************************************/
482 /* */
483 /* <FuncType> */
484 /* QT_FT_Outline_MoveToFunc */
485 /* */
486 /* <Description> */
487 /* A function pointer type used to describe the signature of a `move */
488 /* to' function during outline walking/decomposition. */
489 /* */
490 /* A `move to' is emitted to start a new contour in an outline. */
491 /* */
492 /* <Input> */
493 /* to :: A pointer to the target point of the `move to'. */
494 /* */
495 /* user :: A typeless pointer which is passed from the caller of the */
496 /* decomposition function. */
497 /* */
498 /* <Return> */
499 /* Error code. 0 means success. */
500 /* */
501 typedef int
502 (*QT_FT_Outline_MoveToFunc)( QT_FT_Vector* to,
503 void* user );
504
505#define QT_FT_Outline_MoveTo_Func QT_FT_Outline_MoveToFunc
506
507 /*************************************************************************/
508 /* */
509 /* <FuncType> */
510 /* QT_FT_Outline_LineToFunc */
511 /* */
512 /* <Description> */
513 /* A function pointer type used to describe the signature of a `line */
514 /* to' function during outline walking/decomposition. */
515 /* */
516 /* A `line to' is emitted to indicate a segment in the outline. */
517 /* */
518 /* <Input> */
519 /* to :: A pointer to the target point of the `line to'. */
520 /* */
521 /* user :: A typeless pointer which is passed from the caller of the */
522 /* decomposition function. */
523 /* */
524 /* <Return> */
525 /* Error code. 0 means success. */
526 /* */
527 typedef int
528 (*QT_FT_Outline_LineToFunc)( QT_FT_Vector* to,
529 void* user );
530
531#define QT_FT_Outline_LineTo_Func QT_FT_Outline_LineToFunc
532
533 /*************************************************************************/
534 /* */
535 /* <FuncType> */
536 /* QT_FT_Outline_ConicToFunc */
537 /* */
538 /* <Description> */
539 /* A function pointer type use to describe the signature of a `conic */
540 /* to' function during outline walking/decomposition. */
541 /* */
542 /* A `conic to' is emitted to indicate a second-order Bezier arc in */
543 /* the outline. */
544 /* */
545 /* <Input> */
546 /* control :: An intermediate control point between the last position */
547 /* and the new target in `to'. */
548 /* */
549 /* to :: A pointer to the target end point of the conic arc. */
550 /* */
551 /* user :: A typeless pointer which is passed from the caller of */
552 /* the decomposition function. */
553 /* */
554 /* <Return> */
555 /* Error code. 0 means success. */
556 /* */
557 typedef int
558 (*QT_FT_Outline_ConicToFunc)( QT_FT_Vector* control,
559 QT_FT_Vector* to,
560 void* user );
561
562#define QT_FT_Outline_ConicTo_Func QT_FT_Outline_ConicToFunc
563
564 /*************************************************************************/
565 /* */
566 /* <FuncType> */
567 /* QT_FT_Outline_CubicToFunc */
568 /* */
569 /* <Description> */
570 /* A function pointer type used to describe the signature of a `cubic */
571 /* to' function during outline walking/decomposition. */
572 /* */
573 /* A `cubic to' is emitted to indicate a third-order Bezier arc. */
574 /* */
575 /* <Input> */
576 /* control1 :: A pointer to the first Bezier control point. */
577 /* */
578 /* control2 :: A pointer to the second Bezier control point. */
579 /* */
580 /* to :: A pointer to the target end point. */
581 /* */
582 /* user :: A typeless pointer which is passed from the caller of */
583 /* the decomposition function. */
584 /* */
585 /* <Return> */
586 /* Error code. 0 means success. */
587 /* */
588 typedef int
589 (*QT_FT_Outline_CubicToFunc)( QT_FT_Vector* control1,
590 QT_FT_Vector* control2,
591 QT_FT_Vector* to,
592 void* user );
593
594#define QT_FT_Outline_CubicTo_Func QT_FT_Outline_CubicToFunc
595
596
597 /*************************************************************************/
598 /* */
599 /* <Struct> */
600 /* QT_FT_Outline_Funcs */
601 /* */
602 /* <Description> */
603 /* A structure to hold various function pointers used during outline */
604 /* decomposition in order to emit segments, conic, and cubic Beziers, */
605 /* as well as `move to' and `close to' operations. */
606 /* */
607 /* <Fields> */
608 /* move_to :: The `move to' emitter. */
609 /* */
610 /* line_to :: The segment emitter. */
611 /* */
612 /* conic_to :: The second-order Bezier arc emitter. */
613 /* */
614 /* cubic_to :: The third-order Bezier arc emitter. */
615 /* */
616 /* shift :: The shift that is applied to coordinates before they */
617 /* are sent to the emitter. */
618 /* */
619 /* delta :: The delta that is applied to coordinates before they */
620 /* are sent to the emitter, but after the shift. */
621 /* */
622 /* <Note> */
623 /* The point coordinates sent to the emitters are the transformed */
624 /* version of the original coordinates (this is important for high */
625 /* accuracy during scan-conversion). The transformation is simple: */
626 /* */
627 /* x' = (x << shift) - delta */
628 /* y' = (x << shift) - delta */
629 /* */
630 /* Set the value of `shift' and `delta' to 0 to get the original */
631 /* point coordinates. */
632 /* */
644
645
646 /*************************************************************************/
647 /* */
648 /* <Section> */
649 /* basic_types */
650 /* */
651 /*************************************************************************/
652
653
654 /*************************************************************************/
655 /* */
656 /* <Macro> */
657 /* QT_FT_IMAGE_TAG */
658 /* */
659 /* <Description> */
660 /* This macro converts four letter tags into an unsigned long. */
661 /* */
662 /* <Note> */
663 /* Since many 16bit compilers don't like 32bit enumerations, you */
664 /* should redefine this macro in case of problems to something like */
665 /* this: */
666 /* */
667 /* #define QT_FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 ) value */
668 /* */
669 /* to get a simple enumeration without assigning special numbers. */
670 /* */
671#ifndef QT_FT_IMAGE_TAG
672#define QT_FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 )
673 value = ( ( (unsigned long)_x1 << 24 ) |
674 ( (unsigned long)_x2 << 16 ) |
675 ( (unsigned long)_x3 << 8 ) |
676 (unsigned long)_x4 )
677#endif /* QT_FT_IMAGE_TAG */
678
679
680 /*************************************************************************/
681 /* */
682 /* <Enum> */
683 /* QT_FT_Glyph_Format */
684 /* */
685 /* <Description> */
686 /* An enumeration type used to describe the format of a given glyph */
687 /* image. Note that this version of FreeType only supports two image */
688 /* formats, even though future font drivers will be able to register */
689 /* their own format. */
690 /* */
691 /* <Values> */
692 /* QT_FT_GLYPH_FORMAT_NONE :: */
693 /* The value 0 is reserved and does describe a glyph format. */
694 /* */
695 /* QT_FT_GLYPH_FORMAT_COMPOSITE :: */
696 /* The glyph image is a composite of several other images. This */
697 /* format is _only_ used with @QT_FT_LOAD_NO_RECURSE, and is used to */
698 /* report compound glyphs (like accented characters). */
699 /* */
700 /* QT_FT_GLYPH_FORMAT_BITMAP :: */
701 /* The glyph image is a bitmap, and can be described as an */
702 /* @QT_FT_Bitmap. You generally need to access the `bitmap' field of */
703 /* the @QT_FT_GlyphSlotRec structure to read it. */
704 /* */
705 /* QT_FT_GLYPH_FORMAT_OUTLINE :: */
706 /* The glyph image is a vertorial outline made of line segments */
707 /* and Bezier arcs; it can be described as an @QT_FT_Outline; you */
708 /* generally want to access the `outline' field of the */
709 /* @QT_FT_GlyphSlotRec structure to read it. */
710 /* */
711 /* QT_FT_GLYPH_FORMAT_PLOTTER :: */
712 /* The glyph image is a vectorial path with no inside/outside */
713 /* contours. Some Type 1 fonts, like those in the Hershey family, */
714 /* contain glyphs in this format. These are described as */
715 /* @QT_FT_Outline, but FreeType isn't currently capable of rendering */
716 /* them correctly. */
717 /* */
718 typedef enum QT_FT_Glyph_Format_
719 {
720 QT_FT_IMAGE_TAG( QT_FT_GLYPH_FORMAT_NONE, 0, 0, 0, 0 ),
721
722 QT_FT_IMAGE_TAG( QT_FT_GLYPH_FORMAT_COMPOSITE, 'c', 'o', 'm', 'p' ),
723 QT_FT_IMAGE_TAG( QT_FT_GLYPH_FORMAT_BITMAP, 'b', 'i', 't', 's' ),
724 QT_FT_IMAGE_TAG( QT_FT_GLYPH_FORMAT_OUTLINE, 'o', 'u', 't', 'l' ),
725 QT_FT_IMAGE_TAG( QT_FT_GLYPH_FORMAT_PLOTTER, 'p', 'l', 'o', 't' )
726
727 } QT_FT_Glyph_Format;
728
729
730 /*************************************************************************/
731 /* */
732 /* <Enum> */
733 /* qt_ft_glyph_format_xxx */
734 /* */
735 /* <Description> */
736 /* A list of decprecated constants. Use the corresponding */
737 /* @QT_FT_Glyph_Format values instead. */
738 /* */
739 /* <Values> */
740 /* qt_ft_glyph_format_none :: see @QT_FT_GLYPH_FORMAT_NONE */
741 /* qt_ft_glyph_format_composite :: see @QT_FT_GLYPH_FORMAT_COMPOSITE */
742 /* qt_ft_glyph_format_bitmap :: see @QT_FT_GLYPH_FORMAT_BITMAP */
743 /* qt_ft_glyph_format_outline :: see @QT_FT_GLYPH_FORMAT_OUTLINE */
744 /* qt_ft_glyph_format_plotter :: see @QT_FT_GLYPH_FORMAT_PLOTTER */
745 /* */
746#define qt_ft_glyph_format_none QT_FT_GLYPH_FORMAT_NONE
747#define qt_ft_glyph_format_composite QT_FT_GLYPH_FORMAT_COMPOSITE
748#define qt_ft_glyph_format_bitmap QT_FT_GLYPH_FORMAT_BITMAP
749#define qt_ft_glyph_format_outline QT_FT_GLYPH_FORMAT_OUTLINE
750#define qt_ft_glyph_format_plotter QT_FT_GLYPH_FORMAT_PLOTTER
751
752
753 /*************************************************************************/
754 /*************************************************************************/
755 /*************************************************************************/
756 /***** *****/
757 /***** R A S T E R D E F I N I T I O N S *****/
758 /***** *****/
759 /*************************************************************************/
760 /*************************************************************************/
761 /*************************************************************************/
762
763
764 /*************************************************************************/
765 /* */
766 /* A raster is a scan converter, in charge of rendering an outline into */
767 /* a a bitmap. This section contains the public API for rasters. */
768 /* */
769 /* Note that in FreeType 2, all rasters are now encapsulated within */
770 /* specific modules called `renderers'. See `freetype/ftrender.h' for */
771 /* more details on renderers. */
772 /* */
773 /*************************************************************************/
774
775
776 /*************************************************************************/
777 /* */
778 /* <Section> */
779 /* raster */
780 /* */
781 /* <Title> */
782 /* Scanline converter */
783 /* */
784 /* <Abstract> */
785 /* How vectorial outlines are converted into bitmaps and pixmaps. */
786 /* */
787 /* <Description> */
788 /* This section contains technical definitions. */
789 /* */
790 /*************************************************************************/
791
792
793 /*************************************************************************/
794 /* */
795 /* <Type> */
796 /* QT_FT_Raster */
797 /* */
798 /* <Description> */
799 /* A handle (pointer) to a raster object. Each object can be used */
800 /* independently to convert an outline into a bitmap or pixmap. */
801 /* */
802 typedef struct TRaster_ *QT_FT_Raster;
803
804
805 /*************************************************************************/
806 /* */
807 /* <Struct> */
808 /* QT_FT_Span */
809 /* */
810 /* <Description> */
811 /* A structure used to model a single span of gray (or black) pixels */
812 /* when rendering a monochrome or anti-aliased bitmap. */
813 /* */
814 /* <Fields> */
815 /* x :: The span's horizontal start position. */
816 /* */
817 /* len :: The span's length in pixels. */
818 /* */
819 /* coverage :: The span color/coverage, ranging from 0 (background) */
820 /* to 255 (foreground). Only used for anti-aliased */
821 /* rendering. */
822 /* */
823 /* <Note> */
824 /* This structure is used by the span drawing callback type named */
825 /* QT_FT_SpanFunc which takes the y-coordinate of the span as a */
826 /* a parameter. */
827 /* */
828 /* The coverage value is always between 0 and 255, even if the number */
829 /* of gray levels have been set through QT_FT_Set_Gray_Levels(). */
830 /* */
831 typedef struct QT_FT_Span_
832 {
833 int x;
834 int len;
835 int y;
836 unsigned char coverage;
837 } QT_FT_Span;
838
839
840 /*************************************************************************/
841 /* */
842 /* <FuncType> */
843 /* QT_FT_SpanFunc */
844 /* */
845 /* <Description> */
846 /* A function used as a call-back by the anti-aliased renderer in */
847 /* order to let client applications draw themselves the gray pixel */
848 /* spans on each scan line. */
849 /* */
850 /* <Input> */
851 /* y :: The scanline's y-coordinate. */
852 /* */
853 /* count :: The number of spans to draw on this scanline. */
854 /* */
855 /* spans :: A table of `count' spans to draw on the scanline. */
856 /* */
857 /* user :: User-supplied data that is passed to the callback. */
858 /* */
859 /* <Note> */
860 /* This callback allows client applications to directly render the */
861 /* gray spans of the anti-aliased bitmap to any kind of surfaces. */
862 /* */
863 /* This can be used to write anti-aliased outlines directly to a */
864 /* given background bitmap, and even perform translucency. */
865 /* */
866 /* Note that the `count' field cannot be greater than a fixed value */
867 /* defined by the QT_FT_MAX_GRAY_SPANS configuration macro in */
868 /* ftoption.h. By default, this value is set to 32, which means that */
869 /* if there are more than 32 spans on a given scanline, the callback */
870 /* will be called several times with the same `y' parameter in order */
871 /* to draw all callbacks. */
872 /* */
873 /* Otherwise, the callback is only called once per scan-line, and */
874 /* only for those scanlines that do have `gray' pixels on them. */
875 /* */
876 typedef void
877 (*QT_FT_SpanFunc)(int count,
878 const QT_FT_Span* spans,
879 void* worker);
880
881#define QT_FT_Raster_Span_Func QT_FT_SpanFunc
882
883
884 /*************************************************************************/
885 /* */
886 /* <FuncType> */
887 /* QT_FT_Raster_BitTest_Func */
888 /* */
889 /* <Description> */
890 /* THIS TYPE IS DEPRECATED. DO NOT USE IT. */
891 /* */
892 /* A function used as a call-back by the monochrome scan-converter */
893 /* to test whether a given target pixel is already set to the drawing */
894 /* `color'. These tests are crucial to implement drop-out control */
895 /* per-se the TrueType spec. */
896 /* */
897 /* <Input> */
898 /* y :: The pixel's y-coordinate. */
899 /* */
900 /* x :: The pixel's x-coordinate. */
901 /* */
902 /* user :: User-supplied data that is passed to the callback. */
903 /* */
904 /* <Return> */
905 /* 1 if the pixel is `set', 0 otherwise. */
906 /* */
907 typedef int
908 (*QT_FT_Raster_BitTest_Func)( int y,
909 int x,
910 void* user );
911
912
913 /*************************************************************************/
914 /* */
915 /* <FuncType> */
916 /* QT_FT_Raster_BitSet_Func */
917 /* */
918 /* <Description> */
919 /* THIS TYPE IS DEPRECATED. DO NOT USE IT. */
920 /* */
921 /* A function used as a call-back by the monochrome scan-converter */
922 /* to set an individual target pixel. This is crucial to implement */
923 /* drop-out control according to the TrueType specification. */
924 /* */
925 /* <Input> */
926 /* y :: The pixel's y-coordinate. */
927 /* */
928 /* x :: The pixel's x-coordinate. */
929 /* */
930 /* user :: User-supplied data that is passed to the callback. */
931 /* */
932 /* <Return> */
933 /* 1 if the pixel is `set', 0 otherwise. */
934 /* */
935 typedef void
936 (*QT_FT_Raster_BitSet_Func)( int y,
937 int x,
938 void* user );
939
940
941 /*************************************************************************/
942 /* */
943 /* <Enum> */
944 /* QT_FT_RASTER_FLAG_XXX */
945 /* */
946 /* <Description> */
947 /* A list of bit flag constants as used in the `flags' field of a */
948 /* @QT_FT_Raster_Params structure. */
949 /* */
950 /* <Values> */
951 /* QT_FT_RASTER_FLAG_DEFAULT :: This value is 0. */
952 /* */
953 /* QT_FT_RASTER_FLAG_AA :: This flag is set to indicate that an */
954 /* anti-aliased glyph image should be */
955 /* generated. Otherwise, it will be */
956 /* monochrome (1-bit). */
957 /* */
958 /* QT_FT_RASTER_FLAG_DIRECT :: This flag is set to indicate direct */
959 /* rendering. In this mode, client */
960 /* applications must provide their own span */
961 /* callback. This lets them directly */
962 /* draw or compose over an existing bitmap. */
963 /* If this bit is not set, the target */
964 /* pixmap's buffer _must_ be zeroed before */
965 /* rendering. */
966 /* */
967 /* Note that for now, direct rendering is */
968 /* only possible with anti-aliased glyphs. */
969 /* */
970 /* QT_FT_RASTER_FLAG_CLIP :: This flag is only used in direct */
971 /* rendering mode. If set, the output will */
972 /* be clipped to a box specified in the */
973 /* "clip_box" field of the QT_FT_Raster_Params */
974 /* structure. */
975 /* */
976 /* Note that by default, the glyph bitmap */
977 /* is clipped to the target pixmap, except */
978 /* in direct rendering mode where all spans */
979 /* are generated if no clipping box is set. */
980 /* */
981#define QT_FT_RASTER_FLAG_DEFAULT 0x0
982#define QT_FT_RASTER_FLAG_AA 0x1
983#define QT_FT_RASTER_FLAG_DIRECT 0x2
984#define QT_FT_RASTER_FLAG_CLIP 0x4
985
986 /* deprecated */
987#define qt_ft_raster_flag_default QT_FT_RASTER_FLAG_DEFAULT
988#define qt_ft_raster_flag_aa QT_FT_RASTER_FLAG_AA
989#define qt_ft_raster_flag_direct QT_FT_RASTER_FLAG_DIRECT
990#define qt_ft_raster_flag_clip QT_FT_RASTER_FLAG_CLIP
991
992
993 /*************************************************************************/
994 /* */
995 /* <Struct> */
996 /* QT_FT_Raster_Params */
997 /* */
998 /* <Description> */
999 /* A structure to hold the arguments used by a raster's render */
1000 /* function. */
1001 /* */
1002 /* <Fields> */
1003 /* target :: The target bitmap. */
1004 /* */
1005 /* source :: A pointer to the source glyph image (e.g. an */
1006 /* QT_FT_Outline). */
1007 /* */
1008 /* flags :: The rendering flags. */
1009 /* */
1010 /* gray_spans :: The gray span drawing callback. */
1011 /* */
1012 /* black_spans :: The black span drawing callback. */
1013 /* */
1014 /* bit_test :: The bit test callback. UNIMPLEMENTED! */
1015 /* */
1016 /* bit_set :: The bit set callback. UNIMPLEMENTED! */
1017 /* */
1018 /* user :: User-supplied data that is passed to each drawing */
1019 /* callback. */
1020 /* */
1021 /* clip_box :: An optional clipping box. It is only used in */
1022 /* direct rendering mode. Note that coordinates here */
1023 /* should be expressed in _integer_ pixels (and not in */
1024 /* 26.6 fixed-point units). */
1025 /* */
1026 /* <Note> */
1027 /* An anti-aliased glyph bitmap is drawn if the QT_FT_RASTER_FLAG_AA bit */
1028 /* flag is set in the `flags' field, otherwise a monochrome bitmap */
1029 /* will be generated. */
1030 /* */
1031 /* If the QT_FT_RASTER_FLAG_DIRECT bit flag is set in `flags', the */
1032 /* raster will call the `gray_spans' callback to draw gray pixel */
1033 /* spans, in the case of an aa glyph bitmap, it will call */
1034 /* `black_spans', and `bit_test' and `bit_set' in the case of a */
1035 /* monochrome bitmap. This allows direct composition over a */
1036 /* pre-existing bitmap through user-provided callbacks to perform the */
1037 /* span drawing/composition. */
1038 /* */
1039 /* Note that the `bit_test' and `bit_set' callbacks are required when */
1040 /* rendering a monochrome bitmap, as they are crucial to implement */
1041 /* correct drop-out control as defined in the TrueType specification. */
1042 /* */
1043 typedef struct QT_FT_Raster_Params_
1044 {
1045 QT_FT_Bitmap* target;
1046 void* source;
1047 int flags;
1048 QT_FT_SpanFunc gray_spans;
1049 QT_FT_SpanFunc black_spans;
1050 QT_FT_Raster_BitTest_Func bit_test; /* doesn't work! */
1051 QT_FT_Raster_BitSet_Func bit_set; /* doesn't work! */
1052 void* user;
1053 QT_FT_BBox clip_box;
1054 int skip_spans;
1055
1056 } QT_FT_Raster_Params;
1057
1058
1059 /*************************************************************************/
1060 /* */
1061 /* <FuncType> */
1062 /* QT_FT_Raster_NewFunc */
1063 /* */
1064 /* <Description> */
1065 /* A function used to create a new raster object. */
1066 /* */
1067 /* <Input> */
1068 /* memory :: A handle to the memory allocator. */
1069 /* */
1070 /* <Output> */
1071 /* raster :: A handle to the new raster object. */
1072 /* */
1073 /* <Return> */
1074 /* Error code. 0 means success. */
1075 /* */
1076 /* <Note> */
1077 /* The `memory' parameter is a typeless pointer in order to avoid */
1078 /* un-wanted dependencies on the rest of the FreeType code. In */
1079 /* practice, it is a QT_FT_Memory, i.e., a handle to the standard */
1080 /* FreeType memory allocator. However, this field can be completely */
1081 /* ignored by a given raster implementation. */
1082 /* */
1083 typedef int
1084 (*QT_FT_Raster_NewFunc)( QT_FT_Raster* raster );
1085
1086#define QT_FT_Raster_New_Func QT_FT_Raster_NewFunc
1087
1088 /*************************************************************************/
1089 /* */
1090 /* <FuncType> */
1091 /* QT_FT_Raster_DoneFunc */
1092 /* */
1093 /* <Description> */
1094 /* A function used to destroy a given raster object. */
1095 /* */
1096 /* <Input> */
1097 /* raster :: A handle to the raster object. */
1098 /* */
1099 typedef void
1100 (*QT_FT_Raster_DoneFunc)( QT_FT_Raster raster );
1101
1102#define QT_FT_Raster_Done_Func QT_FT_Raster_DoneFunc
1103
1104 /*************************************************************************/
1105 /* */
1106 /* <FuncType> */
1107 /* QT_FT_Raster_ResetFunc */
1108 /* */
1109 /* <Description> */
1110 /* FreeType provides an area of memory called the `render pool', */
1111 /* available to all registered rasters. This pool can be freely used */
1112 /* during a given scan-conversion but is shared by all rasters. Its */
1113 /* content is thus transient. */
1114 /* */
1115 /* This function is called each time the render pool changes, or just */
1116 /* after a new raster object is created. */
1117 /* */
1118 /* <Input> */
1119 /* raster :: A handle to the new raster object. */
1120 /* */
1121 /* pool_base :: The address in memory of the render pool. */
1122 /* */
1123 /* pool_size :: The size in bytes of the render pool. */
1124 /* */
1125 /* <Note> */
1126 /* Rasters can ignore the render pool and rely on dynamic memory */
1127 /* allocation if they want to (a handle to the memory allocator is */
1128 /* passed to the raster constructor). However, this is not */
1129 /* recommended for efficiency purposes. */
1130 /* */
1131 typedef void
1132 (*QT_FT_Raster_ResetFunc)( QT_FT_Raster raster,
1133 unsigned char* pool_base,
1134 unsigned long pool_size );
1135
1136#define QT_FT_Raster_Reset_Func QT_FT_Raster_ResetFunc
1137
1138 /*************************************************************************/
1139 /* */
1140 /* <FuncType> */
1141 /* QT_FT_Raster_SetModeFunc */
1142 /* */
1143 /* <Description> */
1144 /* This function is a generic facility to change modes or attributes */
1145 /* in a given raster. This can be used for debugging purposes, or */
1146 /* simply to allow implementation-specific `features' in a given */
1147 /* raster module. */
1148 /* */
1149 /* <Input> */
1150 /* raster :: A handle to the new raster object. */
1151 /* */
1152 /* mode :: A 4-byte tag used to name the mode or property. */
1153 /* */
1154 /* args :: A pointer to the new mode/property to use. */
1155 /* */
1156 typedef int
1157 (*QT_FT_Raster_SetModeFunc)( QT_FT_Raster raster,
1158 unsigned long mode,
1159 void* args );
1160
1161#define QT_FT_Raster_Set_Mode_Func QT_FT_Raster_SetModeFunc
1162
1163 /*************************************************************************/
1164 /* */
1165 /* <FuncType> */
1166 /* QT_FT_Raster_RenderFunc */
1167 /* */
1168 /* <Description> */
1169 /* Invokes a given raster to scan-convert a given glyph image into a */
1170 /* target bitmap. */
1171 /* */
1172 /* <Input> */
1173 /* raster :: A handle to the raster object. */
1174 /* */
1175 /* params :: A pointer to a QT_FT_Raster_Params structure used to store */
1176 /* the rendering parameters. */
1177 /* */
1178 /* <Return> */
1179 /* Error code. 0 means success. */
1180 /* */
1181 /* <Note> */
1182 /* The exact format of the source image depends on the raster's glyph */
1183 /* format defined in its QT_FT_Raster_Funcs structure. It can be an */
1184 /* QT_FT_Outline or anything else in order to support a large array of */
1185 /* glyph formats. */
1186 /* */
1187 /* Note also that the render function can fail and return a */
1188 /* QT_FT_Err_Unimplemented_Feature error code if the raster used does */
1189 /* not support direct composition. */
1190 /* */
1191 /* XXX: For now, the standard raster doesn't support direct */
1192 /* composition but this should change for the final release (see */
1193 /* the files demos/src/ftgrays.c and demos/src/ftgrays2.c for */
1194 /* examples of distinct implementations which support direct */
1195 /* composition). */
1196 /* */
1197 typedef int
1198 (*QT_FT_Raster_RenderFunc)( QT_FT_Raster raster,
1199 QT_FT_Raster_Params* params );
1200
1201#define QT_FT_Raster_Render_Func QT_FT_Raster_RenderFunc
1202
1203 /*************************************************************************/
1204 /* */
1205 /* <Struct> */
1206 /* QT_FT_Raster_Funcs */
1207 /* */
1208 /* <Description> */
1209 /* A structure used to describe a given raster class to the library. */
1210 /* */
1211 /* <Fields> */
1212 /* glyph_format :: The supported glyph format for this raster. */
1213 /* */
1214 /* raster_new :: The raster constructor. */
1215 /* */
1216 /* raster_reset :: Used to reset the render pool within the raster. */
1217 /* */
1218 /* raster_render :: A function to render a glyph into a given bitmap. */
1219 /* */
1220 /* raster_done :: The raster destructor. */
1221 /* */
1232
1233
1234 /* */
1235
1236
1237QT_FT_END_HEADER
1238
1239#endif /* __FTIMAGE_H__ */
1240
1241
1242/* END */
QT_FT_RASTER_FLAG_CLIP
#define QT_FT_RASTER_FLAG_CLIP
Definition qrasterdefs_p.h:984
QT_FT_Raster_NewFunc
int(* QT_FT_Raster_NewFunc)(QT_FT_Raster *raster)
Definition qrasterdefs_p.h:1084
QT_FT_OUTLINE_SINGLE_PASS
#define QT_FT_OUTLINE_SINGLE_PASS
Definition qrasterdefs_p.h:432
QT_FT_OUTLINE_REVERSE_FILL
#define QT_FT_OUTLINE_REVERSE_FILL
Definition qrasterdefs_p.h:428
QT_FT_OUTLINE_HIGH_PRECISION
#define QT_FT_OUTLINE_HIGH_PRECISION
Definition qrasterdefs_p.h:431
QT_FT_OUTLINE_EVEN_ODD_FILL
#define QT_FT_OUTLINE_EVEN_ODD_FILL
Definition qrasterdefs_p.h:427
QT_FT_Outline_LineToFunc
int(* QT_FT_Outline_LineToFunc)(QT_FT_Vector *to, void *user)
Definition qrasterdefs_p.h:528
QT_FT_Raster_DoneFunc
void(* QT_FT_Raster_DoneFunc)(QT_FT_Raster raster)
Definition qrasterdefs_p.h:1100
QT_FT_RASTER_FLAG_DIRECT
#define QT_FT_RASTER_FLAG_DIRECT
Definition qrasterdefs_p.h:983
QT_FT_OUTLINE_NONE
#define QT_FT_OUTLINE_NONE
Definition qrasterdefs_p.h:425
QT_FT_CURVE_TAG_ON
#define QT_FT_CURVE_TAG_ON
Definition qrasterdefs_p.h:465
QT_FT_Raster_BitTest_Func
int(* QT_FT_Raster_BitTest_Func)(int y, int x, void *user)
Definition qrasterdefs_p.h:908
QT_FT_SpanFunc
void(* QT_FT_SpanFunc)(int count, const QT_FT_Span *spans, void *worker)
Definition qrasterdefs_p.h:877
QT_FT_Raster_RenderFunc
int(* QT_FT_Raster_RenderFunc)(QT_FT_Raster raster, QT_FT_Raster_Params *params)
Definition qrasterdefs_p.h:1198
QT_FT_Outline_ConicToFunc
int(* QT_FT_Outline_ConicToFunc)(QT_FT_Vector *control, QT_FT_Vector *to, void *user)
Definition qrasterdefs_p.h:558
QT_FT_RASTER_FLAG_DEFAULT
#define QT_FT_RASTER_FLAG_DEFAULT
Definition qrasterdefs_p.h:981
QT_FT_OUTLINE_OWNER
#define QT_FT_OUTLINE_OWNER
Definition qrasterdefs_p.h:426
QT_FT_Pos
QT_FT_BEGIN_HEADER typedef signed int QT_FT_Pos
Definition qrasterdefs_p.h:66
QT_FT_CURVE_TAG_CONIC
#define QT_FT_CURVE_TAG_CONIC
Definition qrasterdefs_p.h:466
QT_FT_CURVE_TAG_TOUCH_Y
#define QT_FT_CURVE_TAG_TOUCH_Y
Definition qrasterdefs_p.h:470
QT_FT_Pixel_Mode_
QT_FT_Pixel_Mode_
Definition qrasterdefs_p.h:165
QT_FT_PIXEL_MODE_GRAY
@ QT_FT_PIXEL_MODE_GRAY
Definition qrasterdefs_p.h:168
QT_FT_PIXEL_MODE_LCD
@ QT_FT_PIXEL_MODE_LCD
Definition qrasterdefs_p.h:171
QT_FT_PIXEL_MODE_NONE
@ QT_FT_PIXEL_MODE_NONE
Definition qrasterdefs_p.h:166
QT_FT_PIXEL_MODE_MAX
@ QT_FT_PIXEL_MODE_MAX
Definition qrasterdefs_p.h:174
QT_FT_PIXEL_MODE_GRAY4
@ QT_FT_PIXEL_MODE_GRAY4
Definition qrasterdefs_p.h:170
QT_FT_PIXEL_MODE_GRAY2
@ QT_FT_PIXEL_MODE_GRAY2
Definition qrasterdefs_p.h:169
QT_FT_PIXEL_MODE_MONO
@ QT_FT_PIXEL_MODE_MONO
Definition qrasterdefs_p.h:167
QT_FT_PIXEL_MODE_LCD_V
@ QT_FT_PIXEL_MODE_LCD_V
Definition qrasterdefs_p.h:172
QT_FT_Raster_BitSet_Func
void(* QT_FT_Raster_BitSet_Func)(int y, int x, void *user)
Definition qrasterdefs_p.h:936
QT_FT_CURVE_TAG_TOUCH_X
#define QT_FT_CURVE_TAG_TOUCH_X
Definition qrasterdefs_p.h:469
QT_FT_IMAGE_TAG
#define QT_FT_IMAGE_TAG(value, _x1, _x2, _x3, _x4)
Definition qrasterdefs_p.h:672
QT_FT_CURVE_TAG_CUBIC
#define QT_FT_CURVE_TAG_CUBIC
Definition qrasterdefs_p.h:467
QT_FT_Raster
struct TRaster_ * QT_FT_Raster
Definition qrasterdefs_p.h:802
QT_FT_Outline_MoveToFunc
int(* QT_FT_Outline_MoveToFunc)(QT_FT_Vector *to, void *user)
Definition qrasterdefs_p.h:502
QT_FT_RASTER_FLAG_AA
#define QT_FT_RASTER_FLAG_AA
Definition qrasterdefs_p.h:982
QT_FT_Raster_SetModeFunc
int(* QT_FT_Raster_SetModeFunc)(QT_FT_Raster raster, unsigned long mode, void *args)
Definition qrasterdefs_p.h:1157
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:1132
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:589
QT_FT_OUTLINE_IGNORE_DROPOUTS
#define QT_FT_OUTLINE_IGNORE_DROPOUTS
Definition qrasterdefs_p.h:429
QT_FT_Glyph_Format_
QT_FT_Glyph_Format_
Definition qrasterdefs_p.h:719
QT_FT_BBox_
Definition qrasterdefs_p.h:110
QT_FT_BBox_::xMax
QT_FT_Pos xMax
Definition qrasterdefs_p.h:112
QT_FT_BBox_::xMin
QT_FT_Pos xMin
Definition qrasterdefs_p.h:111
QT_FT_BBox_::yMax
QT_FT_Pos yMax
Definition qrasterdefs_p.h:112
QT_FT_BBox_::yMin
QT_FT_Pos yMin
Definition qrasterdefs_p.h:111
QT_FT_Bitmap_
Definition qrasterdefs_p.h:294
QT_FT_Bitmap_::buffer
unsigned char * buffer
Definition qrasterdefs_p.h:298
QT_FT_Bitmap_::palette_mode
char palette_mode
Definition qrasterdefs_p.h:301
QT_FT_Bitmap_::rows
int rows
Definition qrasterdefs_p.h:295
QT_FT_Bitmap_::pitch
int pitch
Definition qrasterdefs_p.h:297
QT_FT_Bitmap_::pixel_mode
char pixel_mode
Definition qrasterdefs_p.h:300
QT_FT_Bitmap_::num_grays
short num_grays
Definition qrasterdefs_p.h:299
QT_FT_Bitmap_::palette
void * palette
Definition qrasterdefs_p.h:302
QT_FT_Bitmap_::width
int width
Definition qrasterdefs_p.h:296
QT_FT_Outline_Funcs_
Definition qrasterdefs_p.h:634
QT_FT_Outline_Funcs_::line_to
QT_FT_Outline_LineToFunc line_to
Definition qrasterdefs_p.h:636
QT_FT_Outline_Funcs_::delta
QT_FT_Pos delta
Definition qrasterdefs_p.h:641
QT_FT_Outline_Funcs_::conic_to
QT_FT_Outline_ConicToFunc conic_to
Definition qrasterdefs_p.h:637
QT_FT_Outline_Funcs_::shift
int shift
Definition qrasterdefs_p.h:640
QT_FT_Outline_Funcs_::cubic_to
QT_FT_Outline_CubicToFunc cubic_to
Definition qrasterdefs_p.h:638
QT_FT_Outline_Funcs_::move_to
QT_FT_Outline_MoveToFunc move_to
Definition qrasterdefs_p.h:635
QT_FT_Outline_
Definition qrasterdefs_p.h:352
QT_FT_Outline_::flags
int flags
Definition qrasterdefs_p.h:360
QT_FT_Outline_::contours
int * contours
Definition qrasterdefs_p.h:358
QT_FT_Outline_::tags
char * tags
Definition qrasterdefs_p.h:357
QT_FT_Outline_::points
QT_FT_Vector * points
Definition qrasterdefs_p.h:356
QT_FT_Outline_::n_points
int n_points
Definition qrasterdefs_p.h:354
QT_FT_Outline_::n_contours
int n_contours
Definition qrasterdefs_p.h:353
QT_FT_Raster_Funcs_
Definition qrasterdefs_p.h:1223
QT_FT_Raster_Funcs_::raster_done
QT_FT_Raster_DoneFunc raster_done
Definition qrasterdefs_p.h:1229
QT_FT_Raster_Funcs_::raster_set_mode
QT_FT_Raster_SetModeFunc raster_set_mode
Definition qrasterdefs_p.h:1227
QT_FT_Raster_Funcs_::raster_reset
QT_FT_Raster_ResetFunc raster_reset
Definition qrasterdefs_p.h:1226
QT_FT_Raster_Funcs_::glyph_format
QT_FT_Glyph_Format glyph_format
Definition qrasterdefs_p.h:1224
QT_FT_Raster_Funcs_::raster_render
QT_FT_Raster_RenderFunc raster_render
Definition qrasterdefs_p.h:1228
QT_FT_Raster_Funcs_::raster_new
QT_FT_Raster_NewFunc raster_new
Definition qrasterdefs_p.h:1225
QT_FT_Raster_Params_
Definition qrasterdefs_p.h:1044
QT_FT_Raster_Params_::target
QT_FT_Bitmap * target
Definition qrasterdefs_p.h:1045
QT_FT_Raster_Params_::bit_test
QT_FT_Raster_BitTest_Func bit_test
Definition qrasterdefs_p.h:1050
QT_FT_Raster_Params_::clip_box
QT_FT_BBox clip_box
Definition qrasterdefs_p.h:1053
QT_FT_Raster_Params_::flags
int flags
Definition qrasterdefs_p.h:1047
QT_FT_Raster_Params_::source
void * source
Definition qrasterdefs_p.h:1046
QT_FT_Raster_Params_::gray_spans
QT_FT_SpanFunc gray_spans
Definition qrasterdefs_p.h:1048
QT_FT_Raster_Params_::bit_set
QT_FT_Raster_BitSet_Func bit_set
Definition qrasterdefs_p.h:1051
QT_FT_Raster_Params_::skip_spans
int skip_spans
Definition qrasterdefs_p.h:1054
QT_FT_Raster_Params_::black_spans
QT_FT_SpanFunc black_spans
Definition qrasterdefs_p.h:1049
QT_FT_Raster_Params_::user
void * user
Definition qrasterdefs_p.h:1052
QT_FT_Span_
Definition qrasterdefs_p.h:832
QT_FT_Span_::x
int x
Definition qrasterdefs_p.h:833
QT_FT_Span_::coverage
unsigned char coverage
Definition qrasterdefs_p.h:836
QT_FT_Span_::len
int len
Definition qrasterdefs_p.h:834
QT_FT_Span_::y
int y
Definition qrasterdefs_p.h:835
QT_FT_Vector_
Definition qrasterdefs_p.h:83
QT_FT_Vector_::y
QT_FT_Pos y
Definition qrasterdefs_p.h:85
QT_FT_Vector_::x
QT_FT_Pos x
Definition qrasterdefs_p.h:84
TRaster_
Definition qgrayraster.c:292