2 * Copyright (C) 2007 Google (Evan Stade)
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.
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.
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
19 #ifndef __WINE_GP_PRIVATE_H_
20 #define __WINE_GP_PRIVATE_H_
32 #include "wine/list.h"
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)
41 #define VERSION_MAGIC 0xdbc01001
42 #define TENSION_CONST (0.3)
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);
52 extern GpStatus graphics_from_image(GpImage *image, GpGraphics **graphics);
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);
59 extern void free_installed_fonts(void);
61 extern BOOL lengthen_path(GpPath *path, INT len);
63 extern GpStatus trace_path(GpGraphics *graphics, GpPath *path);
65 typedef struct region_element region_element;
66 extern void delete_element(region_element *element);
68 extern GpStatus get_hatch_data(HatchStyle hatchstyle, const char **result);
70 static inline INT roundr(REAL x)
72 return (INT) floorf(x + 0.5);
75 static inline INT ceilr(REAL x)
77 return (INT) ceilf(x);
80 static inline REAL deg2rad(REAL degrees)
82 return M_PI * degrees / 180.0;
85 static inline ARGB color_over(ARGB bg, ARGB fg)
88 BYTE bg_alpha, fg_alpha;
90 fg_alpha = (fg>>24)&0xff;
92 if (fg_alpha == 0xff) return fg;
94 if (fg_alpha == 0) return bg;
96 bg_alpha = (((bg>>24)&0xff) * (0xff-fg_alpha)) / 0xff;
98 if (bg_alpha == 0) return fg;
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;
105 return (a<<24)|(r<<16)|(g<<8)|b;
108 extern const char *debugstr_rectf(CONST RectF* rc);
110 extern const char *debugstr_pointf(CONST PointF* pt);
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);
115 extern GpStatus convert_pixels(UINT width, UINT 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);
126 GpCustomLineCap *customstart;
127 GpCustomLineCap *customend;
133 REAL offset; /* dash offset */
135 GpPenAlignment align;
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 */
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;
173 HatchStyle hatchstyle;
184 struct GpPathGradient{
192 REAL* blendfac; /* blend factors */
193 REAL* blendpos; /* blend positions */
197 struct GpLineGradient{
206 REAL* blendfac; /* blend factors */
207 REAL* blendpos; /* blend positions */
209 ARGB* pblendcolor; /* preset blend colors */
210 REAL* pblendpos; /* preset blend positions */
218 GpImageAttributes *imageattributes;
224 BOOL newfigure; /* whether the next drawing action starts a new figure */
225 INT datalen; /* size of the arrays in pathdata */
232 struct GpPathIterator{
234 INT subpath_pos; /* for NextSubpath methods */
235 INT marker_pos; /* for NextMarker methods */
236 INT pathtype_pos; /* for NextPathType methods */
239 struct GpCustomLineCap{
241 BOOL fill; /* TRUE for fill, FALSE for stroke */
242 GpLineCap cap; /* as far as I can tell, this value is ignored */
243 REAL inset; /* how much to adjust the end of the line */
248 struct GpAdustableArrowCap{
260 ARGB *palette_entries;
275 ImageLockMode lockmode;
277 BYTE *bitmapbits; /* pointer to the buffer we passed in BitmapLockBits */
280 BYTE *bits; /* actual image bits if this is a DIB */
281 INT stride; /* stride of bits if this is a DIB */
282 BYTE *own_bits; /* image bits that need to be freed with this object */
285 struct GpCachedBitmap{
297 ColorMatrixFlags flags;
298 ColorMatrix colormatrix;
299 ColorMatrix graymatrix;
302 struct color_remap_table{
305 GDIPCONST ColorMap *colormap;
308 struct GpImageAttributes{
312 struct color_key colorkeys[ColorAdjustTypeCount];
313 struct color_matrix colormatrices[ColorAdjustTypeCount];
314 struct color_remap_table colorremaptables[ColorAdjustTypeCount];
315 BOOL gamma_enabled[ColorAdjustTypeCount];
316 REAL gamma[ColorAdjustTypeCount];
327 struct GpStringFormat{
331 StringAlignment align;
332 StringTrimming trimming;
333 HotkeyPrefix hkprefix;
334 StringAlignment vertalign;
335 StringDigitSubstitute digitsub;
339 CharacterRange *character_ranges;
343 struct GpFontCollection{
344 GpFontFamily **FontFamilies;
351 WCHAR FamilyName[LF_FACESIZE];
355 typedef enum RegionType
357 RegionDataRect = 0x10000000,
358 RegionDataPath = 0x10000001,
359 RegionDataEmptyRect = 0x10000002,
360 RegionDataInfiniteRect = 0x10000003,
363 struct region_element
365 DWORD type; /* Rectangle, Path, SpecialRectangle, or CombineMode */
382 struct region_element *left; /* the original region */
383 struct region_element *right; /* what *left was combined with */