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 static inline INT roundr(REAL x)
70 return (INT) floorf(x + 0.5);
73 static inline INT ceilr(REAL x)
75 return (INT) ceilf(x);
78 static inline REAL deg2rad(REAL degrees)
80 return M_PI * degrees / 180.0;
83 static inline ARGB color_over(ARGB bg, ARGB fg)
86 BYTE bg_alpha, fg_alpha;
88 fg_alpha = (fg>>24)&0xff;
90 if (fg_alpha == 0xff) return fg;
92 if (fg_alpha == 0) return bg;
94 bg_alpha = (((bg>>24)&0xff) * (0xff-fg_alpha)) / 0xff;
96 if (bg_alpha == 0) return fg;
98 a = bg_alpha + fg_alpha;
99 b = ((bg&0xff)*bg_alpha + (fg&0xff)*fg_alpha)/a;
100 g = (((bg>>8)&0xff)*bg_alpha + ((fg>>8)&0xff)*fg_alpha)/a;
101 r = (((bg>>16)&0xff)*bg_alpha + ((fg>>16)&0xff)*fg_alpha)/a;
103 return (a<<24)|(r<<16)|(g<<8)|b;
106 extern const char *debugstr_rectf(CONST RectF* rc);
108 extern const char *debugstr_pointf(CONST PointF* pt);
110 extern void convert_32bppARGB_to_32bppPARGB(UINT width, UINT height,
111 BYTE *dst_bits, INT dst_stride, const BYTE *src_bits, INT src_stride);
113 extern GpStatus convert_pixels(UINT width, UINT height,
114 INT dst_stride, BYTE *dst_bits, PixelFormat dst_format,
115 INT src_stride, const BYTE *src_bits, PixelFormat src_format, ARGB *src_palette);
124 GpCustomLineCap *customstart;
125 GpCustomLineCap *customend;
131 REAL offset; /* dash offset */
133 GpPenAlignment align;
141 SmoothingMode smoothing;
142 CompositingQuality compqual;
143 InterpolationMode interpolation;
144 PixelOffsetMode pixeloffset;
145 CompositingMode compmode;
146 TextRenderingHint texthint;
147 GpUnit unit; /* page unit */
148 REAL scale; /* page scale */
149 GpMatrix * worldtrans; /* world transform */
150 BOOL busy; /* hdc handle obtained by GdipGetDC */
152 UINT textcontrast; /* not used yet. get/set only */
153 struct list containers;
154 GraphicsContainer contid; /* last-issued container ID */
155 /* For giving the caller an HDC when we technically can't: */
156 HBITMAP temp_hbitmap;
157 int temp_hbitmap_width;
158 int temp_hbitmap_height;
171 HatchStyle hatchstyle;
182 struct GpPathGradient{
190 REAL* blendfac; /* blend factors */
191 REAL* blendpos; /* blend positions */
195 struct GpLineGradient{
204 REAL* blendfac; /* blend factors */
205 REAL* blendpos; /* blend positions */
207 ARGB* pblendcolor; /* preset blend colors */
208 REAL* pblendpos; /* preset blend positions */
216 WrapMode wrap; /* not used yet */
222 BOOL newfigure; /* whether the next drawing action starts a new figure */
223 INT datalen; /* size of the arrays in pathdata */
230 struct GpPathIterator{
232 INT subpath_pos; /* for NextSubpath methods */
233 INT marker_pos; /* for NextMarker methods */
234 INT pathtype_pos; /* for NextPathType methods */
237 struct GpCustomLineCap{
239 BOOL fill; /* TRUE for fill, FALSE for stroke */
240 GpLineCap cap; /* as far as I can tell, this value is ignored */
241 REAL inset; /* how much to adjust the end of the line */
246 struct GpAdustableArrowCap{
258 ARGB *palette_entries;
273 ImageLockMode lockmode;
275 BYTE *bitmapbits; /* pointer to the buffer we passed in BitmapLockBits */
278 BYTE *bits; /* actual image bits if this is a DIB */
279 INT stride; /* stride of bits if this is a DIB */
280 BYTE *own_bits; /* image bits that need to be freed with this object */
283 struct GpCachedBitmap{
295 ColorMatrixFlags flags;
296 ColorMatrix colormatrix;
297 ColorMatrix graymatrix;
300 struct color_remap_table{
303 GDIPCONST ColorMap *colormap;
306 struct GpImageAttributes{
310 struct color_key colorkeys[ColorAdjustTypeCount];
311 struct color_matrix colormatrices[ColorAdjustTypeCount];
312 struct color_remap_table colorremaptables[ColorAdjustTypeCount];
313 BOOL gamma_enabled[ColorAdjustTypeCount];
314 REAL gamma[ColorAdjustTypeCount];
325 struct GpStringFormat{
329 StringAlignment align;
330 StringTrimming trimming;
331 HotkeyPrefix hkprefix;
332 StringAlignment vertalign;
333 StringDigitSubstitute digitsub;
337 CharacterRange *character_ranges;
341 struct GpFontCollection{
342 GpFontFamily **FontFamilies;
349 WCHAR FamilyName[LF_FACESIZE];
353 typedef enum RegionType
355 RegionDataRect = 0x10000000,
356 RegionDataPath = 0x10000001,
357 RegionDataEmptyRect = 0x10000002,
358 RegionDataInfiniteRect = 0x10000003,
361 struct region_element
363 DWORD type; /* Rectangle, Path, SpecialRectangle, or CombineMode */
380 struct region_element *left; /* the original region */
381 struct region_element *right; /* what *left was combined with */