1 /*
2 * Copyright (C) 2007 Google (Evan Stade)
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
17 */
18
19 #ifndef __WINE_GP_PRIVATE_H_
20 #define __WINE_GP_PRIVATE_H_
21
22 #include <math.h>
23 #include <stdarg.h>
24
25 #include "windef.h"
26 #include "wingdi.h"
27 #include "winbase.h"
28 #include "winuser.h"
29
30 #include "objbase.h"
31 #include "ocidl.h"
32 #include "wine/list.h"
33
34 #include "gdiplus.h"
35
36 #define GP_DEFAULT_PENSTYLE (PS_GEOMETRIC | PS_SOLID | PS_ENDCAP_FLAT | PS_JOIN_MITER)
37 #define MAX_ARC_PTS (13)
38 #define MAX_DASHLEN (16) /* this is a limitation of gdi */
39 #define INCH_HIMETRIC (2540)
40
41 #define VERSION_MAGIC 0xdbc01001
42 #define TENSION_CONST (0.3)
43
44 COLORREF ARGB2COLORREF(ARGB color);
45 HBITMAP ARGB2BMP(ARGB color);
46 extern INT arc2polybezier(GpPointF * points, REAL x1, REAL y1, REAL x2, REAL y2,
47 REAL startAngle, REAL sweepAngle);
48 extern REAL gdiplus_atan2(REAL dy, REAL dx);
49 extern GpStatus hresult_to_status(HRESULT res);
50 extern REAL convert_unit(REAL logpixels, GpUnit unit);
51
52 extern GpStatus graphics_from_image(GpImage *image, GpGraphics **graphics);
53
54 extern void calc_curve_bezier(CONST GpPointF *pts, REAL tension, REAL *x1,
55 REAL *y1, REAL *x2, REAL *y2);
56 extern void calc_curve_bezier_endp(REAL xend, REAL yend, REAL xadj, REAL yadj,
57 REAL tension, REAL *x, REAL *y);
58
59 extern void free_installed_fonts(void);
60
61 extern BOOL lengthen_path(GpPath *path, INT len);
62
63 extern GpStatus trace_path(GpGraphics *graphics, GpPath *path);
64
65 typedef struct region_element region_element;
66 extern void delete_element(region_element *element);
67
68 extern GpStatus get_hatch_data(HatchStyle hatchstyle, const char **result);
69
70 static inline INT roundr(REAL x)
71 {
72 return (INT) floorf(x + 0.5);
73 }
74
75 static inline INT ceilr(REAL x)
76 {
77 return (INT) ceilf(x);
78 }
79
80 static inline REAL deg2rad(REAL degrees)
81 {
82 return M_PI * degrees / 180.0;
83 }
84
85 static inline ARGB color_over(ARGB bg, ARGB fg)
86 {
87 BYTE b, g, r, a;
88 BYTE bg_alpha, fg_alpha;
89
90 fg_alpha = (fg>>24)&0xff;
91
92 if (fg_alpha == 0xff) return fg;
93
94 if (fg_alpha == 0) return bg;
95
96 bg_alpha = (((bg>>24)&0xff) * (0xff-fg_alpha)) / 0xff;
97
98 if (bg_alpha == 0) return fg;
99
100 a = bg_alpha + fg_alpha;
101 b = ((bg&0xff)*bg_alpha + (fg&0xff)*fg_alpha)/a;
102 g = (((bg>>8)&0xff)*bg_alpha + ((fg>>8)&0xff)*fg_alpha)/a;
103 r = (((bg>>16)&0xff)*bg_alpha + ((fg>>16)&0xff)*fg_alpha)/a;
104
105 return (a<<24)|(r<<16)|(g<<8)|b;
106 }
107
108 extern const char *debugstr_rectf(CONST RectF* rc);
109
110 extern const char *debugstr_pointf(CONST PointF* pt);
111
112 extern void convert_32bppARGB_to_32bppPARGB(UINT width, UINT height,
113 BYTE *dst_bits, INT dst_stride, const BYTE *src_bits, INT src_stride);
114
115 extern GpStatus convert_pixels(INT width, INT height,
116 INT dst_stride, BYTE *dst_bits, PixelFormat dst_format,
117 INT src_stride, const BYTE *src_bits, PixelFormat src_format, ARGB *src_palette);
118
119 struct GpPen{
120 UINT style;
121 GpUnit unit;
122 REAL width;
123 GpLineCap endcap;
124 GpLineCap startcap;
125 GpDashCap dashcap;
126 GpCustomLineCap *customstart;
127 GpCustomLineCap *customend;
128 GpLineJoin join;
129 REAL miterlimit;
130 GpDashStyle dash;
131 REAL *dashes;
132 INT numdashes;
133 REAL offset; /* dash offset */
134 GpBrush *brush;
135 GpPenAlignment align;
136 };
137
138 struct GpGraphics{
139 HDC hdc;
140 HWND hwnd;
141 BOOL owndc;
142 GpImage *image;
143 SmoothingMode smoothing;
144 CompositingQuality compqual;
145 InterpolationMode interpolation;
146 PixelOffsetMode pixeloffset;
147 CompositingMode compmode;
148 TextRenderingHint texthint;
149 GpUnit unit; /* page unit */
150 REAL scale; /* page scale */
151 GpMatrix * worldtrans; /* world transform */
152 BOOL busy; /* hdc handle obtained by GdipGetDC */
153 GpRegion *clip;
154 UINT textcontrast; /* not used yet. get/set only */
155 struct list containers;
156 GraphicsContainer contid; /* last-issued container ID */
157 /* For giving the caller an HDC when we technically can't: */
158 HBITMAP temp_hbitmap;
159 int temp_hbitmap_width;
160 int temp_hbitmap_height;
161 BYTE *temp_bits;
162 HDC temp_hdc;
163 };
164
165 struct GpBrush{
166 HBRUSH gdibrush;
167 GpBrushType bt;
168 LOGBRUSH lb;
169 };
170
171 struct GpHatch{
172 GpBrush brush;
173 HatchStyle hatchstyle;
174 ARGB forecol;
175 ARGB backcol;
176 };
177
178 struct GpSolidFill{
179 GpBrush brush;
180 ARGB color;
181 HBITMAP bmp;
182 };
183
184 struct GpPathGradient{
185 GpBrush brush;
186 PathData pathdata;
187 ARGB centercolor;
188 GpWrapMode wrap;
189 BOOL gamma;
190 GpPointF center;
191 GpPointF focus;
192 REAL* blendfac; /* blend factors */
193 REAL* blendpos; /* blend positions */
194 INT blendcount;
195 };
196
197 struct GpLineGradient{
198 GpBrush brush;
199 GpPointF startpoint;
200 GpPointF endpoint;
201 ARGB startcolor;
202 ARGB endcolor;
203 RectF rect;
204 GpWrapMode wrap;
205 BOOL gamma;
206 REAL* blendfac; /* blend factors */
207 REAL* blendpos; /* blend positions */
208 INT blendcount;
209 ARGB* pblendcolor; /* preset blend colors */
210 REAL* pblendpos; /* preset blend positions */
211 INT pblendcount;
212 };
213
214 struct GpTexture{
215 GpBrush brush;
216 GpMatrix *transform;
217 GpImage *image;
218 GpImageAttributes *imageattributes;
219 BYTE *bitmap_bits; /* image bits converted to ARGB and run through imageattributes */
220 };
221
222 struct GpPath{
223 GpFillMode fill;
224 GpPathData pathdata;
225 BOOL newfigure; /* whether the next drawing action starts a new figure */
226 INT datalen; /* size of the arrays in pathdata */
227 };
228
229 struct GpMatrix{
230 REAL matrix[6];
231 };
232
233 struct GpPathIterator{
234 GpPathData pathdata;
235 INT subpath_pos; /* for NextSubpath methods */
236 INT marker_pos; /* for NextMarker methods */
237 INT pathtype_pos; /* for NextPathType methods */
238 };
239
240 struct GpCustomLineCap{
241 GpPathData pathdata;
242 BOOL fill; /* TRUE for fill, FALSE for stroke */
243 GpLineCap cap; /* as far as I can tell, this value is ignored */
244 REAL inset; /* how much to adjust the end of the line */
245 GpLineJoin join;
246 REAL scale;
247 };
248
249 struct GpAdustableArrowCap{
250 GpCustomLineCap cap;
251 };
252
253 struct GpImage{
254 IPicture* picture;
255 ImageType type;
256 GUID format;
257 UINT flags;
258 UINT palette_flags;
259 UINT palette_count;
260 UINT palette_size;
261 ARGB *palette_entries;
262 REAL xres, yres;
263 };
264
265 struct GpMetafile{
266 GpImage image;
267 GpRectF bounds;
268 GpUnit unit;
269 };
270
271 struct GpBitmap{
272 GpImage image;
273 INT width;
274 INT height;
275 PixelFormat format;
276 ImageLockMode lockmode;
277 INT numlocks;
278 BYTE *bitmapbits; /* pointer to the buffer we passed in BitmapLockBits */
279 HBITMAP hbitmap;
280 HDC hdc;
281 BYTE *bits; /* actual image bits if this is a DIB */
282 INT stride; /* stride of bits if this is a DIB */
283 BYTE *own_bits; /* image bits that need to be freed with this object */
284 INT lockx, locky; /* X and Y coordinates of the rect when a bitmap is locked for writing. */
285 };
286
287 struct GpCachedBitmap{
288 GpImage *image;
289 };
290
291 struct color_key{
292 BOOL enabled;
293 ARGB low;
294 ARGB high;
295 };
296
297 struct color_matrix{
298 BOOL enabled;
299 ColorMatrixFlags flags;
300 ColorMatrix colormatrix;
301 ColorMatrix graymatrix;
302 };
303
304 struct color_remap_table{
305 BOOL enabled;
306 INT mapsize;
307 GDIPCONST ColorMap *colormap;
308 };
309
310 struct GpImageAttributes{
311 WrapMode wrap;
312 ARGB outside_color;
313 BOOL clamp;
314 struct color_key colorkeys[ColorAdjustTypeCount];
315 struct color_matrix colormatrices[ColorAdjustTypeCount];
316 struct color_remap_table colorremaptables[ColorAdjustTypeCount];
317 BOOL gamma_enabled[ColorAdjustTypeCount];
318 REAL gamma[ColorAdjustTypeCount];
319 };
320
321 struct GpFont{
322 LOGFONTW lfw;
323 REAL emSize;
324 UINT height;
325 LONG line_spacing;
326 Unit unit;
327 };
328
329 struct GpStringFormat{
330 INT attr;
331 LANGID lang;
332 LANGID digitlang;
333 StringAlignment align;
334 StringTrimming trimming;
335 HotkeyPrefix hkprefix;
336 StringAlignment vertalign;
337 StringDigitSubstitute digitsub;
338 INT tabcount;
339 REAL firsttab;
340 REAL *tabs;
341 CharacterRange *character_ranges;
342 INT range_count;
343 };
344
345 struct GpFontCollection{
346 GpFontFamily **FontFamilies;
347 INT count;
348 INT allocated;
349 };
350
351 struct GpFontFamily{
352 NEWTEXTMETRICW tmw;
353 WCHAR FamilyName[LF_FACESIZE];
354 };
355
356 /* internal use */
357 typedef enum RegionType
358 {
359 RegionDataRect = 0x10000000,
360 RegionDataPath = 0x10000001,
361 RegionDataEmptyRect = 0x10000002,
362 RegionDataInfiniteRect = 0x10000003,
363 } RegionType;
364
365 struct region_element
366 {
367 DWORD type; /* Rectangle, Path, SpecialRectangle, or CombineMode */
368 union
369 {
370 GpRectF rect;
371 struct
372 {
373 GpPath* path;
374 struct
375 {
376 DWORD size;
377 DWORD magic;
378 DWORD count;
379 DWORD flags;
380 } pathheader;
381 } pathdata;
382 struct
383 {
384 struct region_element *left; /* the original region */
385 struct region_element *right; /* what *left was combined with */
386 } combine;
387 } elementdata;
388 };
389
390 struct GpRegion{
391 struct
392 {
393 DWORD size;
394 DWORD checksum;
395 DWORD magic;
396 DWORD num_children;
397 } header;
398 region_element node;
399 };
400
401 typedef GpStatus (*gdip_format_string_callback)(HDC hdc,
402 GDIPCONST WCHAR *string, INT index, INT length, GDIPCONST GpFont *font,
403 GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format,
404 INT lineno, const RectF *bounds, void *user_data);
405
406 GpStatus gdip_format_string(HDC hdc,
407 GDIPCONST WCHAR *string, INT length, GDIPCONST GpFont *font,
408 GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format,
409 gdip_format_string_callback callback, void *user_data);
410
411 #endif
412
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