dlls/gdiplus/gdiplus_private.h

   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 "wincodecsdk.h"
  33 #include "wine/heap.h"
  34 #include "wine/list.h"
  35
  36 #include "gdiplus.h"
  37
  38 #define GP_DEFAULT_PENSTYLE (PS_GEOMETRIC | PS_SOLID | PS_ENDCAP_FLAT | PS_JOIN_MITER)
  39 #define MAX_ARC_PTS (13)
  40 #define MAX_DASHLEN (16) /* this is a limitation of gdi */
  41 #define INCH_HIMETRIC (2540)
  42
  43 #define VERSION_MAGIC  0xdbc01001
  44 #define VERSION_MAGIC2 0xdbc01002
  45 #define VALID_MAGIC(x) (((x) & 0xfffff000) == 0xdbc01000)
  46 #define TENSION_CONST (0.3)
  47
  48 #define GIF_DISPOSE_UNSPECIFIED 0
  49 #define GIF_DISPOSE_DO_NOT_DISPOSE 1
  50 #define GIF_DISPOSE_RESTORE_TO_BKGND 2
  51 #define GIF_DISPOSE_RESTORE_TO_PREV 3
  52
  53
  54 COLORREF ARGB2COLORREF(ARGB color) DECLSPEC_HIDDEN;
  55 HBITMAP ARGB2BMP(ARGB color) DECLSPEC_HIDDEN;
  56 extern INT arc2polybezier(GpPointF * points, REAL x1, REAL y1, REAL x2, REAL y2,
  57     REAL startAngle, REAL sweepAngle) DECLSPEC_HIDDEN;
  58 extern REAL gdiplus_atan2(REAL dy, REAL dx) DECLSPEC_HIDDEN;
  59 extern GpStatus hresult_to_status(HRESULT res) DECLSPEC_HIDDEN;
  60 extern REAL units_to_pixels(REAL units, GpUnit unit, REAL dpi, BOOL printer_display) DECLSPEC_HIDDEN;
  61 extern REAL pixels_to_units(REAL pixels, GpUnit unit, REAL dpi, BOOL printer_display) DECLSPEC_HIDDEN;
  62 extern REAL units_scale(GpUnit from, GpUnit to, REAL dpi, BOOL printer_display) DECLSPEC_HIDDEN;
  63
  64 #define WineCoordinateSpaceGdiDevice ((GpCoordinateSpace)4)
  65
  66 extern GpStatus gdi_transform_acquire(GpGraphics *graphics);
  67 extern GpStatus gdi_transform_release(GpGraphics *graphics);
  68 extern GpStatus get_graphics_transform(GpGraphics *graphics, GpCoordinateSpace dst_space,
  69         GpCoordinateSpace src_space, GpMatrix *matrix) DECLSPEC_HIDDEN;
  70 extern GpStatus gdip_transform_points(GpGraphics *graphics, GpCoordinateSpace dst_space,
  71         GpCoordinateSpace src_space, GpPointF *points, INT count) DECLSPEC_HIDDEN;
  72
  73 extern GpStatus graphics_from_image(GpImage *image, GpGraphics **graphics) DECLSPEC_HIDDEN;
  74 extern GpStatus encode_image_png(GpImage *image, IStream* stream, GDIPCONST EncoderParameters* params) DECLSPEC_HIDDEN;
  75 extern GpStatus terminate_encoder_wic(GpImage *image) DECLSPEC_HIDDEN;
  76
  77 extern GpStatus METAFILE_GetGraphicsContext(GpMetafile* metafile, GpGraphics **result) DECLSPEC_HIDDEN;
  78 extern GpStatus METAFILE_GetDC(GpMetafile* metafile, HDC *hdc) DECLSPEC_HIDDEN;
  79 extern GpStatus METAFILE_ReleaseDC(GpMetafile* metafile, HDC hdc) DECLSPEC_HIDDEN;
  80 extern GpStatus METAFILE_GraphicsClear(GpMetafile* metafile, ARGB color) DECLSPEC_HIDDEN;
  81 extern GpStatus METAFILE_FillRectangles(GpMetafile* metafile, GpBrush* brush,
  82     GDIPCONST GpRectF* rects, INT count) DECLSPEC_HIDDEN;
  83 extern GpStatus METAFILE_SetClipRect(GpMetafile* metafile,
  84     REAL x, REAL y, REAL width, REAL height, CombineMode mode) DECLSPEC_HIDDEN;
  85 extern GpStatus METAFILE_SetClipRegion(GpMetafile* metafile, GpRegion* region, CombineMode mode) DECLSPEC_HIDDEN;
  86 extern GpStatus METAFILE_SetPageTransform(GpMetafile* metafile, GpUnit unit, REAL scale) DECLSPEC_HIDDEN;
  87 extern GpStatus METAFILE_SetWorldTransform(GpMetafile* metafile, GDIPCONST GpMatrix* transform) DECLSPEC_HIDDEN;
  88 extern GpStatus METAFILE_ScaleWorldTransform(GpMetafile* metafile, REAL sx, REAL sy, MatrixOrder order) DECLSPEC_HIDDEN;
  89 extern GpStatus METAFILE_MultiplyWorldTransform(GpMetafile* metafile, GDIPCONST GpMatrix* matrix, MatrixOrder order) DECLSPEC_HIDDEN;
  90 extern GpStatus METAFILE_RotateWorldTransform(GpMetafile* metafile, REAL angle, MatrixOrder order) DECLSPEC_HIDDEN;
  91 extern GpStatus METAFILE_TranslateWorldTransform(GpMetafile* metafile, REAL dx, REAL dy, MatrixOrder order) DECLSPEC_HIDDEN;
  92 extern GpStatus METAFILE_ResetWorldTransform(GpMetafile* metafile) DECLSPEC_HIDDEN;
  93 extern GpStatus METAFILE_BeginContainer(GpMetafile* metafile, GDIPCONST GpRectF *dstrect,
  94     GDIPCONST GpRectF *srcrect, GpUnit unit, DWORD StackIndex) DECLSPEC_HIDDEN;
  95 extern GpStatus METAFILE_BeginContainerNoParams(GpMetafile* metafile, DWORD StackIndex) DECLSPEC_HIDDEN;
  96 extern GpStatus METAFILE_EndContainer(GpMetafile* metafile, DWORD StackIndex) DECLSPEC_HIDDEN;
  97 extern GpStatus METAFILE_SaveGraphics(GpMetafile* metafile, DWORD StackIndex) DECLSPEC_HIDDEN;
  98 extern GpStatus METAFILE_RestoreGraphics(GpMetafile* metafile, DWORD StackIndex) DECLSPEC_HIDDEN;
  99 extern GpStatus METAFILE_GraphicsDeleted(GpMetafile* metafile) DECLSPEC_HIDDEN;
 100 extern GpStatus METAFILE_DrawImagePointsRect(GpMetafile* metafile, GpImage *image,
 101      GDIPCONST GpPointF *points, INT count, REAL srcx, REAL srcy, REAL srcwidth,
 102      REAL srcheight, GpUnit srcUnit, GDIPCONST GpImageAttributes* imageAttributes,
 103      DrawImageAbort callback, VOID *callbackData) DECLSPEC_HIDDEN;
 104 extern GpStatus METAFILE_AddSimpleProperty(GpMetafile *metafile, SHORT prop, SHORT val) DECLSPEC_HIDDEN;
 105 extern GpStatus METAFILE_DrawPath(GpMetafile *metafile, GpPen *pen, GpPath *path) DECLSPEC_HIDDEN;
 106 extern GpStatus METAFILE_FillPath(GpMetafile *metafile, GpBrush *brush, GpPath *path) DECLSPEC_HIDDEN;
 107 extern GpStatus METAFILE_DrawDriverString(GpMetafile *metafile, GDIPCONST UINT16 *text, INT length,
 108     GDIPCONST GpFont *font, GDIPCONST GpStringFormat *format, GDIPCONST GpBrush *brush,
 109     GDIPCONST PointF *positions, INT flags, GDIPCONST GpMatrix *matrix) DECLSPEC_HIDDEN;
 110 extern GpStatus METAFILE_FillRegion(GpMetafile* metafile, GpBrush* brush,
 111     GpRegion* region) DECLSPEC_HIDDEN;
 112 extern void METAFILE_Free(GpMetafile *metafile) DECLSPEC_HIDDEN;
 113 extern GpStatus METAFILE_DrawEllipse(GpMetafile *metafile, GpPen *pen, GpRectF *rect) DECLSPEC_HIDDEN;
 114 extern GpStatus METAFILE_FillEllipse(GpMetafile *metafile, GpBrush *brush, GpRectF *rect) DECLSPEC_HIDDEN;
 115 extern GpStatus METAFILE_DrawRectangles(GpMetafile *metafile, GpPen *pen, const GpRectF *rects, INT count) DECLSPEC_HIDDEN;
 116 extern GpStatus METAFILE_FillPie(GpMetafile *metafile, GpBrush *brush, const GpRectF *rect,
 117     REAL startAngle, REAL sweepAngle) DECLSPEC_HIDDEN;
 118 extern GpStatus METAFILE_DrawArc(GpMetafile *metafile, GpPen *pen, const GpRectF *rect,
 119     REAL startAngle, REAL sweepAngle) DECLSPEC_HIDDEN;
 120 extern GpStatus METAFILE_OffsetClip(GpMetafile *metafile, REAL dx, REAL dy) DECLSPEC_HIDDEN;
 121 extern GpStatus METAFILE_ResetClip(GpMetafile *metafile) DECLSPEC_HIDDEN;
 122 extern GpStatus METAFILE_SetClipPath(GpMetafile *metafile, GpPath *path, CombineMode mode) DECLSPEC_HIDDEN;
 123 extern GpStatus METAFILE_SetRenderingOrigin(GpMetafile *metafile, INT x, INT y) DECLSPEC_HIDDEN;
 124
 125 extern void calc_curve_bezier(const GpPointF *pts, REAL tension, REAL *x1,
 126     REAL *y1, REAL *x2, REAL *y2) DECLSPEC_HIDDEN;
 127 extern void calc_curve_bezier_endp(REAL xend, REAL yend, REAL xadj, REAL yadj,
 128     REAL tension, REAL *x, REAL *y) DECLSPEC_HIDDEN;
 129
 130 extern void free_installed_fonts(void) DECLSPEC_HIDDEN;
 131
 132 extern BOOL lengthen_path(GpPath *path, INT len) DECLSPEC_HIDDEN;
 133
 134 extern DWORD write_region_data(const GpRegion *region, void *data) DECLSPEC_HIDDEN;
 135 extern DWORD write_path_data(GpPath *path, void *data) DECLSPEC_HIDDEN;
 136
 137 extern GpStatus trace_path(GpGraphics *graphics, GpPath *path) DECLSPEC_HIDDEN;
 138
 139 typedef struct region_element region_element;
 140 extern void delete_element(region_element *element) DECLSPEC_HIDDEN;
 141
 142 extern GpStatus get_hatch_data(GpHatchStyle hatchstyle, const unsigned char **result) DECLSPEC_HIDDEN;
 143
 144 static inline INT gdip_round(REAL x)
 145 {
 146     return (INT) floorf(x + 0.5);
 147 }
 148
 149 static inline INT ceilr(REAL x)
 150 {
 151     return (INT) ceilf(x);
 152 }
 153
 154 static inline REAL deg2rad(REAL degrees)
 155 {
 156     return M_PI * degrees / 180.0;
 157 }
 158
 159 static inline ARGB color_over(ARGB bg, ARGB fg)
 160 {
 161     BYTE b, g, r, a;
 162     BYTE bg_alpha, fg_alpha;
 163
 164     fg_alpha = (fg>>24)&0xff;
 165
 166     if (fg_alpha == 0xff) return fg;
 167
 168     if (fg_alpha == 0) return bg;
 169
 170     bg_alpha = (((bg>>24)&0xff) * (0xff-fg_alpha)) / 0xff;
 171
 172     if (bg_alpha == 0) return fg;
 173
 174     a = bg_alpha + fg_alpha;
 175     b = ((bg&0xff)*bg_alpha + (fg&0xff)*fg_alpha)/a;
 176     g = (((bg>>8)&0xff)*bg_alpha + ((fg>>8)&0xff)*fg_alpha)/a;
 177     r = (((bg>>16)&0xff)*bg_alpha + ((fg>>16)&0xff)*fg_alpha)/a;
 178
 179     return (a<<24)|(r<<16)|(g<<8)|b;
 180 }
 181
 182 /* fg is premult, bg and return value are not */
 183 static inline ARGB color_over_fgpremult(ARGB bg, ARGB fg)
 184 {
 185     BYTE b, g, r, a;
 186     BYTE bg_alpha, fg_alpha;
 187
 188     fg_alpha = (fg>>24)&0xff;
 189
 190     if (fg_alpha == 0) return bg;
 191
 192     bg_alpha = (((bg>>24)&0xff) * (0xff-fg_alpha)) / 0xff;
 193
 194     a = bg_alpha + fg_alpha;
 195     b = ((bg&0xff)*bg_alpha + (fg&0xff)*0xff)/a;
 196     g = (((bg>>8)&0xff)*bg_alpha + ((fg>>8)&0xff)*0xff)/a;
 197     r = (((bg>>16)&0xff)*bg_alpha + ((fg>>16)&0xff)*0xff)/a;
 198
 199     return (a<<24)|(r<<16)|(g<<8)|b;
 200 }
 201
 202 extern const char *debugstr_rectf(const RectF* rc) DECLSPEC_HIDDEN;
 203
 204 extern const char *debugstr_pointf(const PointF* pt) DECLSPEC_HIDDEN;
 205
 206 extern void convert_32bppARGB_to_32bppPARGB(UINT width, UINT height,
 207     BYTE *dst_bits, INT dst_stride, const BYTE *src_bits, INT src_stride) DECLSPEC_HIDDEN;
 208
 209 extern GpStatus convert_pixels(INT width, INT height,
 210     INT dst_stride, BYTE *dst_bits, PixelFormat dst_format,
 211     INT src_stride, const BYTE *src_bits, PixelFormat src_format, ColorPalette *palette) DECLSPEC_HIDDEN;
 212
 213 extern PixelFormat apply_image_attributes(const GpImageAttributes *attributes, LPBYTE data,
 214     UINT width, UINT height, INT stride, ColorAdjustType type, PixelFormat fmt) DECLSPEC_HIDDEN;
 215
 216 struct GpMatrix{
 217     REAL matrix[6];
 218 };
 219
 220 struct GpPen{
 221     UINT style;
 222     GpUnit unit;
 223     REAL width;
 224     GpLineCap endcap;
 225     GpLineCap startcap;
 226     GpDashCap dashcap;
 227     GpCustomLineCap *customstart;
 228     GpCustomLineCap *customend;
 229     GpLineJoin join;
 230     REAL miterlimit;
 231     GpDashStyle dash;
 232     REAL *dashes;
 233     INT numdashes;
 234     REAL offset;    /* dash offset */
 235     GpBrush *brush;
 236     GpPenAlignment align;
 237     GpMatrix transform;
 238 };
 239
 240 struct GpGraphics{
 241     HDC hdc;
 242     HWND hwnd;
 243     BOOL owndc;
 244     BOOL alpha_hdc;
 245     BOOL printer_display;
 246     GpImage *image;
 247     ImageType image_type;
 248     SmoothingMode smoothing;
 249     CompositingQuality compqual;
 250     InterpolationMode interpolation;
 251     PixelOffsetMode pixeloffset;
 252     CompositingMode compmode;
 253     TextRenderingHint texthint;
 254     GpUnit unit;    /* page unit */
 255     REAL scale;     /* page scale */
 256     REAL xres, yres;
 257     GpMatrix worldtrans; /* world transform */
 258     BOOL busy;      /* hdc handle obtained by GdipGetDC */
 259     GpRegion *clip; /* in device coords */
 260     UINT textcontrast; /* not used yet. get/set only */
 261     struct list containers;
 262     GraphicsContainer contid; /* last-issued container ID */
 263     INT origin_x, origin_y;
 264     INT gdi_transform_acquire_count, gdi_transform_save;
 265     GpMatrix gdi_transform;
 266     HRGN gdi_clip;
 267     /* For giving the caller an HDC when we technically can't: */
 268     HBITMAP temp_hbitmap;
 269     int temp_hbitmap_width;
 270     int temp_hbitmap_height;
 271     BYTE *temp_bits;
 272     HDC temp_hdc;
 273 };
 274
 275 struct GpBrush{
 276     GpBrushType bt;
 277 };
 278
 279 struct GpHatch{
 280     GpBrush brush;
 281     GpHatchStyle hatchstyle;
 282     ARGB forecol;
 283     ARGB backcol;
 284 };
 285
 286 struct GpSolidFill{
 287     GpBrush brush;
 288     ARGB color;
 289 };
 290
 291 struct GpPathGradient{
 292     GpBrush brush;
 293     GpPath* path;
 294     ARGB centercolor;
 295     GpWrapMode wrap;
 296     BOOL gamma;
 297     GpPointF center;
 298     GpPointF focus;
 299     REAL* blendfac;  /* blend factors */
 300     REAL* blendpos;  /* blend positions */
 301     INT blendcount;
 302     ARGB *surroundcolors;
 303     INT surroundcolorcount;
 304     ARGB* pblendcolor; /* preset blend colors */
 305     REAL* pblendpos; /* preset blend positions */
 306     INT pblendcount;
 307     GpMatrix transform;
 308 };
 309
 310 struct GpLineGradient{
 311     GpBrush brush;
 312     ARGB startcolor;
 313     ARGB endcolor;
 314     RectF rect;
 315     GpWrapMode wrap;
 316     BOOL gamma;
 317     REAL* blendfac;  /* blend factors */
 318     REAL* blendpos;  /* blend positions */
 319     INT blendcount;
 320     ARGB* pblendcolor; /* preset blend colors */
 321     REAL* pblendpos; /* preset blend positions */
 322     INT pblendcount;
 323     GpMatrix transform;
 324 };
 325
 326 struct GpTexture{
 327     GpBrush brush;
 328     GpMatrix transform;
 329     GpImage *image;
 330     GpImageAttributes *imageattributes;
 331     BYTE *bitmap_bits; /* image bits converted to ARGB and run through imageattributes */
 332 };
 333
 334 struct GpPath{
 335     GpFillMode fill;
 336     GpPathData pathdata;
 337     BOOL newfigure; /* whether the next drawing action starts a new figure */
 338     INT datalen; /* size of the arrays in pathdata */
 339 };
 340
 341 struct GpPathIterator{
 342     GpPathData pathdata;
 343     INT subpath_pos;    /* for NextSubpath methods */
 344     INT marker_pos;     /* for NextMarker methods */
 345     INT pathtype_pos;   /* for NextPathType methods */
 346 };
 347
 348 struct GpCustomLineCap{
 349     CustomLineCapType type;
 350     GpPathData pathdata;
 351     BOOL fill;      /* TRUE for fill, FALSE for stroke */
 352     GpLineCap cap;  /* as far as I can tell, this value is ignored */
 353     REAL inset;     /* how much to adjust the end of the line */
 354     GpLineJoin join;
 355     REAL scale;
 356 };
 357
 358 struct GpAdjustableArrowCap{
 359     GpCustomLineCap cap;
 360     REAL middle_inset;
 361     REAL height;
 362     REAL width;
 363 };
 364
 365 struct GpImage{
 366     IWICBitmapDecoder *decoder;
 367     IWICBitmapEncoder *encoder;
 368     ImageType type;
 369     GUID format;
 370     UINT flags;
 371     UINT frame_count, current_frame;
 372     ColorPalette *palette;
 373     REAL xres, yres;
 374     LONG busy;
 375 };
 376
 377 #define EmfPlusObjectTableSize 64
 378
 379 typedef enum EmfPlusObjectType
 380 {
 381     ObjectTypeInvalid,
 382     ObjectTypeBrush,
 383     ObjectTypePen,
 384     ObjectTypePath,
 385     ObjectTypeRegion,
 386     ObjectTypeImage,
 387     ObjectTypeFont,
 388     ObjectTypeStringFormat,
 389     ObjectTypeImageAttributes,
 390     ObjectTypeCustomLineCap,
 391     ObjectTypeMax = ObjectTypeCustomLineCap,
 392 } EmfPlusObjectType;
 393
 394 /* Deserialized EmfPlusObject record. */
 395 struct emfplus_object {
 396     EmfPlusObjectType type;
 397     union {
 398         GpBrush *brush;
 399         GpPen *pen;
 400         GpPath *path;
 401         GpRegion *region;
 402         GpImage *image;
 403         GpFont *font;
 404         GpImageAttributes *image_attributes;
 405         void *object;
 406     } u;
 407 };
 408
 409 struct GpMetafile{
 410     GpImage image;
 411     GpRectF bounds;
 412     GpUnit unit;
 413     MetafileType metafile_type;
 414     HENHMETAFILE hemf;
 415     int preserve_hemf; /* if true, hemf belongs to the app and should not be deleted */
 416
 417     /* recording */
 418     HDC record_dc;
 419     GpGraphics *record_graphics;
 420     BYTE *comment_data;
 421     DWORD comment_data_size;
 422     DWORD comment_data_length;
 423     IStream *record_stream;
 424     BOOL auto_frame; /* If true, determine the frame automatically */
 425     GpPointF auto_frame_min, auto_frame_max;
 426     DWORD next_object_id;
 427     UINT limit_dpi;
 428     BOOL printer_display;
 429     REAL logical_dpix;
 430     REAL logical_dpiy;
 431
 432     /* playback */
 433     GpGraphics *playback_graphics;
 434     HDC playback_dc;
 435     GpPointF playback_points[3];
 436     GpRectF src_rect;
 437     HANDLETABLE *handle_table;
 438     int handle_count;
 439     GpMatrix *world_transform;
 440     GpUnit page_unit;
 441     REAL page_scale;
 442     GpRegion *base_clip; /* clip region in device space for all metafile output */
 443     GpRegion *clip; /* clip region within the metafile */
 444     struct list containers;
 445     struct emfplus_object objtable[EmfPlusObjectTableSize];
 446 };
 447
 448 struct GpBitmap{
 449     GpImage image;
 450     INT width;
 451     INT height;
 452     PixelFormat format;
 453     ImageLockMode lockmode;
 454     BYTE *bitmapbits;   /* pointer to the buffer we passed in BitmapLockBits */
 455     HBITMAP hbitmap;
 456     HDC hdc;
 457     BYTE *bits; /* actual image bits if this is a DIB */
 458     INT stride; /* stride of bits if this is a DIB */
 459     BYTE *own_bits; /* image bits that need to be freed with this object */
 460     INT lockx, locky; /* X and Y coordinates of the rect when a bitmap is locked for writing. */
 461     IWICMetadataReader *metadata_reader; /* NULL if there is no metadata */
 462     UINT prop_count;
 463     PropertyItem *prop_item; /* cached image properties */
 464 };
 465
 466 struct GpCachedBitmap{
 467     GpImage *image;
 468 };
 469
 470 struct color_key{
 471     BOOL enabled;
 472     ARGB low;
 473     ARGB high;
 474 };
 475
 476 struct color_matrix{
 477     BOOL enabled;
 478     ColorMatrixFlags flags;
 479     ColorMatrix colormatrix;
 480     ColorMatrix graymatrix;
 481 };
 482
 483 struct color_remap_table{
 484     BOOL enabled;
 485     INT mapsize;
 486     ColorMap *colormap;
 487 };
 488
 489 enum imageattr_noop{
 490     IMAGEATTR_NOOP_UNDEFINED,
 491     IMAGEATTR_NOOP_SET,
 492     IMAGEATTR_NOOP_CLEAR,
 493 };
 494
 495 struct GpImageAttributes{
 496     WrapMode wrap;
 497     ARGB outside_color;
 498     BOOL clamp;
 499     struct color_key colorkeys[ColorAdjustTypeCount];
 500     struct color_matrix colormatrices[ColorAdjustTypeCount];
 501     struct color_remap_table colorremaptables[ColorAdjustTypeCount];
 502     BOOL gamma_enabled[ColorAdjustTypeCount];
 503     REAL gamma[ColorAdjustTypeCount];
 504     enum imageattr_noop noop[ColorAdjustTypeCount];
 505 };
 506
 507 struct GpFont{
 508     GpFontFamily *family;
 509     OUTLINETEXTMETRICW otm;
 510     REAL emSize; /* in font units */
 511     Unit unit;
 512 };
 513
 514 extern const struct GpStringFormat default_drawstring_format DECLSPEC_HIDDEN;
 515
 516 struct GpStringFormat{
 517     INT attr;
 518     LANGID lang;
 519     LANGID digitlang;
 520     StringAlignment align;
 521     StringTrimming trimming;
 522     HotkeyPrefix hkprefix;
 523     StringAlignment line_align;
 524     StringDigitSubstitute digitsub;
 525     INT tabcount;
 526     REAL firsttab;
 527     REAL *tabs;
 528     CharacterRange *character_ranges;
 529     INT range_count;
 530     BOOL generic_typographic;
 531 };
 532
 533 extern void init_generic_string_formats(void) DECLSPEC_HIDDEN;
 534 extern void free_generic_string_formats(void) DECLSPEC_HIDDEN;
 535
 536 struct GpFontCollection{
 537     GpFontFamily **FontFamilies;
 538     INT count;
 539     INT allocated;
 540 };
 541
 542 struct GpFontFamily{
 543     WCHAR FamilyName[LF_FACESIZE];
 544     UINT16 em_height, ascent, descent, line_spacing; /* in font units */
 545     int dpi;
 546 };
 547
 548 /* internal use */
 549 typedef enum RegionType
 550 {
 551     RegionDataRect          = 0x10000000,
 552     RegionDataPath          = 0x10000001,
 553     RegionDataEmptyRect     = 0x10000002,
 554     RegionDataInfiniteRect  = 0x10000003,
 555 } RegionType;
 556
 557 struct region_element
 558 {
 559     DWORD type; /* Rectangle, Path, SpecialRectangle, or CombineMode */
 560     union
 561     {
 562         GpRectF rect;
 563         GpPath *path;
 564         struct
 565         {
 566             struct region_element *left;  /* the original region */
 567             struct region_element *right; /* what *left was combined with */
 568         } combine;
 569     } elementdata;
 570 };
 571
 572 struct GpRegion{
 573     DWORD num_children;
 574     region_element node;
 575 };
 576
 577 struct memory_buffer
 578 {
 579     const BYTE *buffer;
 580     INT size, pos;
 581 };
 582
 583 static inline void init_memory_buffer(struct memory_buffer *mbuf, const BYTE *buffer, INT size)
 584 {
 585     mbuf->buffer = buffer;
 586     mbuf->size = size;
 587     mbuf->pos = 0;
 588 }
 589
 590 static inline const void *buffer_read(struct memory_buffer *mbuf, INT size)
 591 {
 592     if (mbuf->size - mbuf->pos >= size)
 593     {
 594         const void *data = mbuf->buffer + mbuf->pos;
 595         mbuf->pos += size;
 596         return data;
 597     }
 598     return NULL;
 599 }
 600
 601 typedef GpStatus (*gdip_format_string_callback)(HDC hdc,
 602     GDIPCONST WCHAR *string, INT index, INT length, GDIPCONST GpFont *font,
 603     GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format,
 604     INT lineno, const RectF *bounds, INT *underlined_indexes,
 605     INT underlined_index_count, void *user_data);
 606
 607 GpStatus gdip_format_string(HDC hdc,
 608     GDIPCONST WCHAR *string, INT length, GDIPCONST GpFont *font,
 609     GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format, int ignore_empty_clip,
 610     gdip_format_string_callback callback, void *user_data) DECLSPEC_HIDDEN;
 611
 612 void get_log_fontW(const GpFont *, GpGraphics *, LOGFONTW *) DECLSPEC_HIDDEN;
 613
 614 static inline BOOL image_lock(GpImage *image, BOOL *unlock)
 615 {
 616     LONG tid = GetCurrentThreadId(), owner_tid;
 617     owner_tid = InterlockedCompareExchange(&image->busy, tid, 0);
 618     *unlock = !owner_tid;
 619     return !owner_tid || owner_tid==tid;
 620 }
 621
 622 static inline void image_unlock(GpImage *image, BOOL unlock)
 623 {
 624     if (unlock) image->busy = 0;
 625 }
 626
 627 static inline void set_rect(GpRectF *rect, REAL x, REAL y, REAL width, REAL height)
 628 {
 629     rect->X = x;
 630     rect->Y = y;
 631     rect->Width = width;
 632     rect->Height = height;
 633 }
 634
 635 #endif