dlls/gdiplus/brush.c

   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 #include <stdarg.h>
  20
  21 #include "windef.h"
  22 #include "winbase.h"
  23 #include "winuser.h"
  24 #include "wingdi.h"
  25
  26 #define COBJMACROS
  27 #include "objbase.h"
  28 #include "olectl.h"
  29 #include "ole2.h"
  30
  31 #include "gdiplus.h"
  32 #include "gdiplus_private.h"
  33 #include "wine/debug.h"
  34
  35 WINE_DEFAULT_DEBUG_CHANNEL(gdiplus);
  36
  37 /******************************************************************************
  38  * GdipCloneBrush [GDIPLUS.@]
  39  */
  40 GpStatus WINGDIPAPI GdipCloneBrush(GpBrush *brush, GpBrush **clone)
  41 {
  42     TRACE("(%p, %p)\n", brush, clone);
  43
  44     if(!brush || !clone)
  45         return InvalidParameter;
  46
  47     switch(brush->bt){
  48         case BrushTypeSolidColor:
  49         {
  50             *clone = GdipAlloc(sizeof(GpSolidFill));
  51             if (!*clone) return OutOfMemory;
  52             memcpy(*clone, brush, sizeof(GpSolidFill));
  53             break;
  54         }
  55         case BrushTypeHatchFill:
  56         {
  57             GpHatch *hatch = (GpHatch*)brush;
  58
  59             return GdipCreateHatchBrush(hatch->hatchstyle, hatch->forecol, hatch->backcol, (GpHatch**)clone);
  60         }
  61         case BrushTypePathGradient:{
  62             GpPathGradient *src, *dest;
  63             INT count;
  64             GpStatus stat;
  65
  66             *clone = GdipAlloc(sizeof(GpPathGradient));
  67             if (!*clone) return OutOfMemory;
  68
  69             src = (GpPathGradient*) brush,
  70             dest = (GpPathGradient*) *clone;
  71
  72             memcpy(dest, src, sizeof(GpPathGradient));
  73
  74             stat = GdipClonePath(src->path, &dest->path);
  75
  76             if(stat != Ok){
  77                 GdipFree(dest);
  78                 return stat;
  79             }
  80
  81             /* blending */
  82             count = src->blendcount;
  83             dest->blendcount = count;
  84             dest->blendfac = GdipAlloc(count * sizeof(REAL));
  85             dest->blendpos = GdipAlloc(count * sizeof(REAL));
  86
  87             if(!dest->blendfac || !dest->blendpos){
  88                 GdipDeletePath(dest->path);
  89                 GdipFree(dest->blendfac);
  90                 GdipFree(dest->blendpos);
  91                 GdipFree(dest);
  92                 return OutOfMemory;
  93             }
  94
  95             memcpy(dest->blendfac, src->blendfac, count * sizeof(REAL));
  96             memcpy(dest->blendpos, src->blendpos, count * sizeof(REAL));
  97
  98             break;
  99         }
 100         case BrushTypeLinearGradient:{
 101             GpLineGradient *dest, *src;
 102             INT count, pcount;
 103
 104             dest = GdipAlloc(sizeof(GpLineGradient));
 105             if(!dest)    return OutOfMemory;
 106
 107             src = (GpLineGradient*)brush;
 108
 109             memcpy(dest, src, sizeof(GpLineGradient));
 110
 111             count = dest->blendcount;
 112             dest->blendfac = GdipAlloc(count * sizeof(REAL));
 113             dest->blendpos = GdipAlloc(count * sizeof(REAL));
 114             pcount = dest->pblendcount;
 115             if (pcount)
 116             {
 117                 dest->pblendcolor = GdipAlloc(pcount * sizeof(ARGB));
 118                 dest->pblendpos = GdipAlloc(pcount * sizeof(REAL));
 119             }
 120
 121             if (!dest->blendfac || !dest->blendpos ||
 122                 (pcount && (!dest->pblendcolor || !dest->pblendpos)))
 123             {
 124                 GdipFree(dest->blendfac);
 125                 GdipFree(dest->blendpos);
 126                 GdipFree(dest->pblendcolor);
 127                 GdipFree(dest->pblendpos);
 128                 GdipFree(dest);
 129                 return OutOfMemory;
 130             }
 131
 132             memcpy(dest->blendfac, src->blendfac, count * sizeof(REAL));
 133             memcpy(dest->blendpos, src->blendpos, count * sizeof(REAL));
 134
 135             if (pcount)
 136             {
 137                 memcpy(dest->pblendcolor, src->pblendcolor, pcount * sizeof(ARGB));
 138                 memcpy(dest->pblendpos, src->pblendpos, pcount * sizeof(REAL));
 139             }
 140
 141             *clone = &dest->brush;
 142             break;
 143         }
 144         case BrushTypeTextureFill:
 145         {
 146             GpStatus stat;
 147             GpTexture *texture = (GpTexture*)brush;
 148             GpTexture *new_texture;
 149             UINT width, height;
 150
 151             stat = GdipGetImageWidth(texture->image, &width);
 152             if (stat != Ok) return stat;
 153             stat = GdipGetImageHeight(texture->image, &height);
 154             if (stat != Ok) return stat;
 155
 156             stat = GdipCreateTextureIA(texture->image, texture->imageattributes, 0, 0, width, height, &new_texture);
 157
 158             if (stat == Ok)
 159             {
 160                 memcpy(new_texture->transform, texture->transform, sizeof(GpMatrix));
 161                 *clone = (GpBrush*)new_texture;
 162             }
 163             else
 164                 *clone = NULL;
 165
 166             return stat;
 167         }
 168         default:
 169             ERR("not implemented for brush type %d\n", brush->bt);
 170             return NotImplemented;
 171     }
 172
 173     TRACE("<-- %p\n", *clone);
 174     return Ok;
 175 }
 176
 177 static const char HatchBrushes[][8] = {
 178     { 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00 }, /* HatchStyleHorizontal */
 179     { 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08 }, /* HatchStyleVertical */
 180     { 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80 }, /* HatchStyleForwardDiagonal */
 181     { 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01 }, /* HatchStyleBackwardDiagonal */
 182     { 0x08, 0x08, 0x08, 0xff, 0x08, 0x08, 0x08, 0x08 }, /* HatchStyleCross */
 183     { 0x81, 0x42, 0x24, 0x18, 0x18, 0x24, 0x42, 0x81 }, /* HatchStyleDiagonalCross */
 184     { 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x80 }, /* HatchStyle05Percent */
 185     { 0x00, 0x02, 0x00, 0x88, 0x00, 0x20, 0x00, 0x88 }, /* HatchStyle10Percent */
 186     { 0x00, 0x22, 0x00, 0xcc, 0x00, 0x22, 0x00, 0xcc }, /* HatchStyle20Percent */
 187     { 0x00, 0xcc, 0x00, 0xcc, 0x00, 0xcc, 0x00, 0xcc }, /* HatchStyle25Percent */
 188     { 0x00, 0xcc, 0x04, 0xcc, 0x00, 0xcc, 0x40, 0xcc }, /* HatchStyle30Percent */
 189     { 0x44, 0xcc, 0x22, 0xcc, 0x44, 0xcc, 0x22, 0xcc }, /* HatchStyle40Percent */
 190     { 0x55, 0xcc, 0x55, 0xcc, 0x55, 0xcc, 0x55, 0xcc }, /* HatchStyle50Percent */
 191     { 0x55, 0xcd, 0x55, 0xee, 0x55, 0xdc, 0x55, 0xee }, /* HatchStyle60Percent */
 192     { 0x55, 0xdd, 0x55, 0xff, 0x55, 0xdd, 0x55, 0xff }, /* HatchStyle70Percent */
 193     { 0x55, 0xff, 0x55, 0xff, 0x55, 0xff, 0x55, 0xff }, /* HatchStyle75Percent */
 194     { 0x55, 0xff, 0x59, 0xff, 0x55, 0xff, 0x99, 0xff }, /* HatchStyle80Percent */
 195     { 0x77, 0xff, 0xdd, 0xff, 0x77, 0xff, 0xfd, 0xff }, /* HatchStyle90Percent */
 196     { 0x11, 0x22, 0x44, 0x88, 0x11, 0x22, 0x44, 0x88 }, /* HatchStyleLightDownwardDiagonal */
 197     { 0x88, 0x44, 0x22, 0x11, 0x88, 0x44, 0x22, 0x11 }, /* HatchStyleLightUpwardDiagonal */
 198     { 0x99, 0x33, 0x66, 0xcc, 0x99, 0x33, 0x66, 0xcc }, /* HatchStyleDarkDownwardDiagonal */
 199     { 0xcc, 0x66, 0x33, 0x99, 0xcc, 0x66, 0x33, 0x99 }, /* HatchStyleDarkUpwardDiagonal */
 200     { 0xc1, 0x83, 0x07, 0x0e, 0x1c, 0x38, 0x70, 0xe0 }, /* HatchStyleWideDownwardDiagonal */
 201     { 0xe0, 0x70, 0x38, 0x1c, 0x0e, 0x07, 0x83, 0xc1 }, /* HatchStyleWideUpwardDiagonal */
 202     { 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88 }, /* HatchStyleLightVertical */
 203     { 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0xff }, /* HatchStyleLightHorizontal */
 204     { 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa }, /* HatchStyleNarrowVertical */
 205     { 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff }, /* HatchStyleNarrowHorizontal */
 206     { 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc }, /* HatchStyleDarkVertical */
 207     { 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0xff, 0xff }, /* HatchStyleDarkHorizontal */
 208 };
 209
 210 GpStatus get_hatch_data(HatchStyle hatchstyle, const char **result)
 211 {
 212     if (hatchstyle < sizeof(HatchBrushes) / sizeof(HatchBrushes[0]))
 213     {
 214         *result = HatchBrushes[hatchstyle];
 215         return Ok;
 216     }
 217     else
 218         return NotImplemented;
 219 }
 220
 221 /******************************************************************************
 222  * GdipCreateHatchBrush [GDIPLUS.@]
 223  */
 224 GpStatus WINGDIPAPI GdipCreateHatchBrush(HatchStyle hatchstyle, ARGB forecol, ARGB backcol, GpHatch **brush)
 225 {
 226     TRACE("(%d, %d, %d, %p)\n", hatchstyle, forecol, backcol, brush);
 227
 228     if(!brush)  return InvalidParameter;
 229
 230     *brush = GdipAlloc(sizeof(GpHatch));
 231     if (!*brush) return OutOfMemory;
 232
 233     (*brush)->brush.bt = BrushTypeHatchFill;
 234     (*brush)->forecol = forecol;
 235     (*brush)->backcol = backcol;
 236     (*brush)->hatchstyle = hatchstyle;
 237     TRACE("<-- %p\n", *brush);
 238
 239     return Ok;
 240 }
 241
 242 /******************************************************************************
 243  * GdipCreateLineBrush [GDIPLUS.@]
 244  */
 245 GpStatus WINGDIPAPI GdipCreateLineBrush(GDIPCONST GpPointF* startpoint,
 246     GDIPCONST GpPointF* endpoint, ARGB startcolor, ARGB endcolor,
 247     GpWrapMode wrap, GpLineGradient **line)
 248 {
 249     TRACE("(%s, %s, %x, %x, %d, %p)\n", debugstr_pointf(startpoint),
 250           debugstr_pointf(endpoint), startcolor, endcolor, wrap, line);
 251
 252     if(!line || !startpoint || !endpoint || wrap == WrapModeClamp)
 253         return InvalidParameter;
 254
 255     if (startpoint->X == endpoint->X && startpoint->Y == endpoint->Y)
 256         return OutOfMemory;
 257
 258     *line = GdipAlloc(sizeof(GpLineGradient));
 259     if(!*line)  return OutOfMemory;
 260
 261     (*line)->brush.bt = BrushTypeLinearGradient;
 262
 263     (*line)->startpoint.X = startpoint->X;
 264     (*line)->startpoint.Y = startpoint->Y;
 265     (*line)->endpoint.X = endpoint->X;
 266     (*line)->endpoint.Y = endpoint->Y;
 267     (*line)->startcolor = startcolor;
 268     (*line)->endcolor = endcolor;
 269     (*line)->wrap = wrap;
 270     (*line)->gamma = FALSE;
 271
 272     (*line)->rect.X = (startpoint->X < endpoint->X ? startpoint->X: endpoint->X);
 273     (*line)->rect.Y = (startpoint->Y < endpoint->Y ? startpoint->Y: endpoint->Y);
 274     (*line)->rect.Width  = fabs(startpoint->X - endpoint->X);
 275     (*line)->rect.Height = fabs(startpoint->Y - endpoint->Y);
 276
 277     if ((*line)->rect.Width == 0)
 278     {
 279         (*line)->rect.X -= (*line)->rect.Height / 2.0f;
 280         (*line)->rect.Width = (*line)->rect.Height;
 281     }
 282     else if ((*line)->rect.Height == 0)
 283     {
 284         (*line)->rect.Y -= (*line)->rect.Width / 2.0f;
 285         (*line)->rect.Height = (*line)->rect.Width;
 286     }
 287
 288     (*line)->blendcount = 1;
 289     (*line)->blendfac = GdipAlloc(sizeof(REAL));
 290     (*line)->blendpos = GdipAlloc(sizeof(REAL));
 291
 292     if (!(*line)->blendfac || !(*line)->blendpos)
 293     {
 294         GdipFree((*line)->blendfac);
 295         GdipFree((*line)->blendpos);
 296         GdipFree(*line);
 297         *line = NULL;
 298         return OutOfMemory;
 299     }
 300
 301     (*line)->blendfac[0] = 1.0f;
 302     (*line)->blendpos[0] = 1.0f;
 303
 304     (*line)->pblendcolor = NULL;
 305     (*line)->pblendpos = NULL;
 306     (*line)->pblendcount = 0;
 307
 308     TRACE("<-- %p\n", *line);
 309
 310     return Ok;
 311 }
 312
 313 GpStatus WINGDIPAPI GdipCreateLineBrushI(GDIPCONST GpPoint* startpoint,
 314     GDIPCONST GpPoint* endpoint, ARGB startcolor, ARGB endcolor,
 315     GpWrapMode wrap, GpLineGradient **line)
 316 {
 317     GpPointF stF;
 318     GpPointF endF;
 319
 320     TRACE("(%p, %p, %x, %x, %d, %p)\n", startpoint, endpoint,
 321           startcolor, endcolor, wrap, line);
 322
 323     if(!startpoint || !endpoint)
 324         return InvalidParameter;
 325
 326     stF.X  = (REAL)startpoint->X;
 327     stF.Y  = (REAL)startpoint->Y;
 328     endF.X = (REAL)endpoint->X;
 329     endF.Y = (REAL)endpoint->Y;
 330
 331     return GdipCreateLineBrush(&stF, &endF, startcolor, endcolor, wrap, line);
 332 }
 333
 334 GpStatus WINGDIPAPI GdipCreateLineBrushFromRect(GDIPCONST GpRectF* rect,
 335     ARGB startcolor, ARGB endcolor, LinearGradientMode mode, GpWrapMode wrap,
 336     GpLineGradient **line)
 337 {
 338     GpPointF start, end;
 339     GpStatus stat;
 340
 341     TRACE("(%p, %x, %x, %d, %d, %p)\n", rect, startcolor, endcolor, mode,
 342           wrap, line);
 343
 344     if(!line || !rect)
 345         return InvalidParameter;
 346
 347     switch (mode)
 348     {
 349     case LinearGradientModeHorizontal:
 350         start.X = rect->X;
 351         start.Y = rect->Y;
 352         end.X = rect->X + rect->Width;
 353         end.Y = rect->Y;
 354         break;
 355     case LinearGradientModeVertical:
 356         start.X = rect->X;
 357         start.Y = rect->Y;
 358         end.X = rect->X;
 359         end.Y = rect->Y + rect->Height;
 360         break;
 361     case LinearGradientModeForwardDiagonal:
 362         start.X = rect->X;
 363         start.Y = rect->Y;
 364         end.X = rect->X + rect->Width;
 365         end.Y = rect->Y + rect->Height;
 366         break;
 367     case LinearGradientModeBackwardDiagonal:
 368         start.X = rect->X + rect->Width;
 369         start.Y = rect->Y;
 370         end.X = rect->X;
 371         end.Y = rect->Y + rect->Height;
 372         break;
 373     default:
 374         return InvalidParameter;
 375     }
 376
 377     stat = GdipCreateLineBrush(&start, &end, startcolor, endcolor, wrap, line);
 378
 379     if (stat == Ok)
 380         (*line)->rect = *rect;
 381
 382     return stat;
 383 }
 384
 385 GpStatus WINGDIPAPI GdipCreateLineBrushFromRectI(GDIPCONST GpRect* rect,
 386     ARGB startcolor, ARGB endcolor, LinearGradientMode mode, GpWrapMode wrap,
 387     GpLineGradient **line)
 388 {
 389     GpRectF rectF;
 390
 391     TRACE("(%p, %x, %x, %d, %d, %p)\n", rect, startcolor, endcolor, mode,
 392           wrap, line);
 393
 394     rectF.X      = (REAL) rect->X;
 395     rectF.Y      = (REAL) rect->Y;
 396     rectF.Width  = (REAL) rect->Width;
 397     rectF.Height = (REAL) rect->Height;
 398
 399     return GdipCreateLineBrushFromRect(&rectF, startcolor, endcolor, mode, wrap, line);
 400 }
 401
 402 /******************************************************************************
 403  * GdipCreateLineBrushFromRectWithAngle [GDIPLUS.@]
 404  */
 405 GpStatus WINGDIPAPI GdipCreateLineBrushFromRectWithAngle(GDIPCONST GpRectF* rect,
 406     ARGB startcolor, ARGB endcolor, REAL angle, BOOL isAngleScalable, GpWrapMode wrap,
 407     GpLineGradient **line)
 408 {
 409     GpStatus stat;
 410     LinearGradientMode mode;
 411     REAL width, height, exofs, eyofs;
 412     REAL sin_angle, cos_angle, sin_cos_angle;
 413
 414     TRACE("(%p, %x, %x, %.2f, %d, %d, %p)\n", rect, startcolor, endcolor, angle, isAngleScalable,
 415           wrap, line);
 416
 417     sin_angle = sinf(deg2rad(angle));
 418     cos_angle = cosf(deg2rad(angle));
 419     sin_cos_angle = sin_angle * cos_angle;
 420
 421     if (isAngleScalable)
 422     {
 423         width = height = 1.0;
 424     }
 425     else
 426     {
 427         width = rect->Width;
 428         height = rect->Height;
 429     }
 430
 431     if (sin_cos_angle >= 0)
 432         mode = LinearGradientModeForwardDiagonal;
 433     else
 434         mode = LinearGradientModeBackwardDiagonal;
 435
 436     stat = GdipCreateLineBrushFromRect(rect, startcolor, endcolor, mode, wrap, line);
 437
 438     if (stat == Ok)
 439     {
 440         if (sin_cos_angle >= 0)
 441         {
 442             exofs = width * sin_cos_angle + height * cos_angle * cos_angle;
 443             eyofs = width * sin_angle * sin_angle + height * sin_cos_angle;
 444         }
 445         else
 446         {
 447             exofs = width * sin_angle * sin_angle + height * sin_cos_angle;
 448             eyofs = -width * sin_cos_angle + height * sin_angle * sin_angle;
 449         }
 450
 451         if (isAngleScalable)
 452         {
 453             exofs = exofs * rect->Width;
 454             eyofs = eyofs * rect->Height;
 455         }
 456
 457         if (sin_angle >= 0)
 458         {
 459             (*line)->endpoint.X = rect->X + exofs;
 460             (*line)->endpoint.Y = rect->Y + eyofs;
 461         }
 462         else
 463         {
 464             (*line)->endpoint.X = (*line)->startpoint.X;
 465             (*line)->endpoint.Y = (*line)->startpoint.Y;
 466             (*line)->startpoint.X = rect->X + exofs;
 467             (*line)->startpoint.Y = rect->Y + eyofs;
 468         }
 469     }
 470
 471     return stat;
 472 }
 473
 474 GpStatus WINGDIPAPI GdipCreateLineBrushFromRectWithAngleI(GDIPCONST GpRect* rect,
 475     ARGB startcolor, ARGB endcolor, REAL angle, BOOL isAngleScalable, GpWrapMode wrap,
 476     GpLineGradient **line)
 477 {
 478     TRACE("(%p, %x, %x, %.2f, %d, %d, %p)\n", rect, startcolor, endcolor, angle, isAngleScalable,
 479           wrap, line);
 480
 481     return GdipCreateLineBrushFromRectI(rect, startcolor, endcolor, LinearGradientModeForwardDiagonal,
 482                                         wrap, line);
 483 }
 484
 485 static GpStatus create_path_gradient(GpPath *path, GpPathGradient **grad)
 486 {
 487     if(!path || !grad)
 488         return InvalidParameter;
 489
 490     *grad = GdipAlloc(sizeof(GpPathGradient));
 491     if (!*grad)
 492     {
 493         return OutOfMemory;
 494     }
 495
 496     (*grad)->blendfac = GdipAlloc(sizeof(REAL));
 497     (*grad)->blendpos = GdipAlloc(sizeof(REAL));
 498     if(!(*grad)->blendfac || !(*grad)->blendpos){
 499         GdipFree((*grad)->blendfac);
 500         GdipFree((*grad)->blendpos);
 501         GdipFree(*grad);
 502         *grad = NULL;
 503         return OutOfMemory;
 504     }
 505     (*grad)->blendfac[0] = 1.0;
 506     (*grad)->blendpos[0] = 1.0;
 507     (*grad)->blendcount  = 1;
 508
 509     (*grad)->path = path;
 510
 511     (*grad)->brush.bt = BrushTypePathGradient;
 512     (*grad)->centercolor = 0xffffffff;
 513     (*grad)->wrap = WrapModeClamp;
 514     (*grad)->gamma = FALSE;
 515     /* FIXME: this should be set to the "centroid" of the path by default */
 516     (*grad)->center.X = 0.0;
 517     (*grad)->center.Y = 0.0;
 518     (*grad)->focus.X = 0.0;
 519     (*grad)->focus.Y = 0.0;
 520
 521     TRACE("<-- %p\n", *grad);
 522
 523     return Ok;
 524 }
 525
 526 GpStatus WINGDIPAPI GdipCreatePathGradient(GDIPCONST GpPointF* points,
 527     INT count, GpWrapMode wrap, GpPathGradient **grad)
 528 {
 529     GpStatus stat;
 530     GpPath *path;
 531
 532     TRACE("(%p, %d, %d, %p)\n", points, count, wrap, grad);
 533
 534     if(!points || !grad)
 535         return InvalidParameter;
 536
 537     if(count <= 0)
 538         return OutOfMemory;
 539
 540     stat = GdipCreatePath(FillModeAlternate, &path);
 541
 542     if (stat == Ok)
 543     {
 544         stat = GdipAddPathLine2(path, points, count);
 545
 546         if (stat == Ok)
 547             stat = create_path_gradient(path, grad);
 548
 549         if (stat != Ok)
 550             GdipDeletePath(path);
 551     }
 552
 553     return stat;
 554 }
 555
 556 GpStatus WINGDIPAPI GdipCreatePathGradientI(GDIPCONST GpPoint* points,
 557     INT count, GpWrapMode wrap, GpPathGradient **grad)
 558 {
 559     GpStatus stat;
 560     GpPath *path;
 561
 562     TRACE("(%p, %d, %d, %p)\n", points, count, wrap, grad);
 563
 564     if(!points || !grad)
 565         return InvalidParameter;
 566
 567     if(count <= 0)
 568         return OutOfMemory;
 569
 570     stat = GdipCreatePath(FillModeAlternate, &path);
 571
 572     if (stat == Ok)
 573     {
 574         stat = GdipAddPathLine2I(path, points, count);
 575
 576         if (stat == Ok)
 577             stat = create_path_gradient(path, grad);
 578
 579         if (stat != Ok)
 580             GdipDeletePath(path);
 581     }
 582
 583     return stat;
 584 }
 585
 586 /******************************************************************************
 587  * GdipCreatePathGradientFromPath [GDIPLUS.@]
 588  */
 589 GpStatus WINGDIPAPI GdipCreatePathGradientFromPath(GDIPCONST GpPath* path,
 590     GpPathGradient **grad)
 591 {
 592     GpStatus stat;
 593     GpPath *new_path;
 594
 595     TRACE("(%p, %p)\n", path, grad);
 596
 597     if(!path || !grad)
 598         return InvalidParameter;
 599
 600     stat = GdipClonePath((GpPath*)path, &new_path);
 601
 602     if (stat == Ok)
 603     {
 604         stat = create_path_gradient(new_path, grad);
 605
 606         if (stat != Ok)
 607             GdipDeletePath(new_path);
 608     }
 609
 610     return stat;
 611 }
 612
 613 /******************************************************************************
 614  * GdipCreateSolidFill [GDIPLUS.@]
 615  */
 616 GpStatus WINGDIPAPI GdipCreateSolidFill(ARGB color, GpSolidFill **sf)
 617 {
 618     TRACE("(%x, %p)\n", color, sf);
 619
 620     if(!sf)  return InvalidParameter;
 621
 622     *sf = GdipAlloc(sizeof(GpSolidFill));
 623     if (!*sf) return OutOfMemory;
 624
 625     (*sf)->brush.bt = BrushTypeSolidColor;
 626     (*sf)->color = color;
 627
 628     TRACE("<-- %p\n", *sf);
 629
 630     return Ok;
 631 }
 632
 633 /******************************************************************************
 634  * GdipCreateTexture [GDIPLUS.@]
 635  *
 636  * PARAMS
 637  *  image       [I] image to use
 638  *  wrapmode    [I] optional
 639  *  texture     [O] pointer to the resulting texturebrush
 640  *
 641  * RETURNS
 642  *  SUCCESS: Ok
 643  *  FAILURE: element of GpStatus
 644  */
 645 GpStatus WINGDIPAPI GdipCreateTexture(GpImage *image, GpWrapMode wrapmode,
 646         GpTexture **texture)
 647 {
 648     UINT width, height;
 649     GpImageAttributes *attributes;
 650     GpStatus stat;
 651
 652     TRACE("%p, %d %p\n", image, wrapmode, texture);
 653
 654     if (!(image && texture))
 655         return InvalidParameter;
 656
 657     stat = GdipGetImageWidth(image, &width);
 658     if (stat != Ok) return stat;
 659     stat = GdipGetImageHeight(image, &height);
 660     if (stat != Ok) return stat;
 661
 662     stat = GdipCreateImageAttributes(&attributes);
 663
 664     if (stat == Ok)
 665     {
 666         attributes->wrap = wrapmode;
 667
 668         stat = GdipCreateTextureIA(image, attributes, 0, 0, width, height,
 669             texture);
 670
 671         GdipDisposeImageAttributes(attributes);
 672     }
 673
 674     return stat;
 675 }
 676
 677 /******************************************************************************
 678  * GdipCreateTexture2 [GDIPLUS.@]
 679  */
 680 GpStatus WINGDIPAPI GdipCreateTexture2(GpImage *image, GpWrapMode wrapmode,
 681         REAL x, REAL y, REAL width, REAL height, GpTexture **texture)
 682 {
 683     GpImageAttributes *attributes;
 684     GpStatus stat;
 685
 686     TRACE("%p %d %f %f %f %f %p\n", image, wrapmode,
 687             x, y, width, height, texture);
 688
 689     stat = GdipCreateImageAttributes(&attributes);
 690
 691     if (stat == Ok)
 692     {
 693         attributes->wrap = wrapmode;
 694
 695         stat = GdipCreateTextureIA(image, attributes, x, y, width, height,
 696                 texture);
 697
 698         GdipDisposeImageAttributes(attributes);
 699     }
 700
 701     return stat;
 702 }
 703
 704 /******************************************************************************
 705  * GdipCreateTextureIA [GDIPLUS.@]
 706  *
 707  * FIXME: imageattr ignored
 708  */
 709 GpStatus WINGDIPAPI GdipCreateTextureIA(GpImage *image,
 710     GDIPCONST GpImageAttributes *imageattr, REAL x, REAL y, REAL width,
 711     REAL height, GpTexture **texture)
 712 {
 713     GpStatus status;
 714     GpImage *new_image=NULL;
 715
 716     TRACE("(%p, %p, %.2f, %.2f, %.2f, %.2f, %p)\n", image, imageattr, x, y, width, height,
 717            texture);
 718
 719     if(!image || !texture || x < 0.0 || y < 0.0 || width < 0.0 || height < 0.0)
 720         return InvalidParameter;
 721
 722     *texture = NULL;
 723
 724     if(image->type != ImageTypeBitmap){
 725         FIXME("not implemented for image type %d\n", image->type);
 726         return NotImplemented;
 727     }
 728
 729     status = GdipCloneBitmapArea(x, y, width, height, PixelFormatDontCare, (GpBitmap*)image, (GpBitmap**)&new_image);
 730     if (status != Ok)
 731         return status;
 732
 733     *texture = GdipAlloc(sizeof(GpTexture));
 734     if (!*texture){
 735         status = OutOfMemory;
 736         goto exit;
 737     }
 738
 739     if((status = GdipCreateMatrix(&(*texture)->transform)) != Ok){
 740         goto exit;
 741     }
 742
 743     if (imageattr)
 744     {
 745         status = GdipCloneImageAttributes(imageattr, &(*texture)->imageattributes);
 746     }
 747     else
 748     {
 749         status = GdipCreateImageAttributes(&(*texture)->imageattributes);
 750         if (status == Ok)
 751             (*texture)->imageattributes->wrap = WrapModeTile;
 752     }
 753     if (status == Ok)
 754     {
 755         (*texture)->brush.bt = BrushTypeTextureFill;
 756         (*texture)->image = new_image;
 757     }
 758
 759 exit:
 760     if (status == Ok)
 761     {
 762         TRACE("<-- %p\n", *texture);
 763     }
 764     else
 765     {
 766         if (*texture)
 767         {
 768             GdipDeleteMatrix((*texture)->transform);
 769             GdipDisposeImageAttributes((*texture)->imageattributes);
 770             GdipFree(*texture);
 771             *texture = NULL;
 772         }
 773         GdipDisposeImage(new_image);
 774         TRACE("<-- error %u\n", status);
 775     }
 776
 777     return status;
 778 }
 779
 780 /******************************************************************************
 781  * GdipCreateTextureIAI [GDIPLUS.@]
 782  */
 783 GpStatus WINGDIPAPI GdipCreateTextureIAI(GpImage *image, GDIPCONST GpImageAttributes *imageattr,
 784     INT x, INT y, INT width, INT height, GpTexture **texture)
 785 {
 786     TRACE("(%p, %p, %d, %d, %d, %d, %p)\n", image, imageattr, x, y, width, height,
 787            texture);
 788
 789     return GdipCreateTextureIA(image,imageattr,(REAL)x,(REAL)y,(REAL)width,(REAL)height,texture);
 790 }
 791
 792 GpStatus WINGDIPAPI GdipCreateTexture2I(GpImage *image, GpWrapMode wrapmode,
 793         INT x, INT y, INT width, INT height, GpTexture **texture)
 794 {
 795     GpImageAttributes *imageattr;
 796     GpStatus stat;
 797
 798     TRACE("%p %d %d %d %d %d %p\n", image, wrapmode, x, y, width, height,
 799             texture);
 800
 801     stat = GdipCreateImageAttributes(&imageattr);
 802
 803     if (stat == Ok)
 804     {
 805         imageattr->wrap = wrapmode;
 806
 807         stat = GdipCreateTextureIA(image, imageattr, x, y, width, height, texture);
 808     }
 809
 810     return stat;
 811 }
 812
 813 GpStatus WINGDIPAPI GdipGetBrushType(GpBrush *brush, GpBrushType *type)
 814 {
 815     TRACE("(%p, %p)\n", brush, type);
 816
 817     if(!brush || !type)  return InvalidParameter;
 818
 819     *type = brush->bt;
 820
 821     return Ok;
 822 }
 823
 824 GpStatus WINGDIPAPI GdipGetHatchBackgroundColor(GpHatch *brush, ARGB *backcol)
 825 {
 826     TRACE("(%p, %p)\n", brush, backcol);
 827
 828     if(!brush || !backcol)  return InvalidParameter;
 829
 830     *backcol = brush->backcol;
 831
 832     return Ok;
 833 }
 834
 835 GpStatus WINGDIPAPI GdipGetHatchForegroundColor(GpHatch *brush, ARGB *forecol)
 836 {
 837     TRACE("(%p, %p)\n", brush, forecol);
 838
 839     if(!brush || !forecol)  return InvalidParameter;
 840
 841     *forecol = brush->forecol;
 842
 843     return Ok;
 844 }
 845
 846 GpStatus WINGDIPAPI GdipGetHatchStyle(GpHatch *brush, HatchStyle *hatchstyle)
 847 {
 848     TRACE("(%p, %p)\n", brush, hatchstyle);
 849
 850     if(!brush || !hatchstyle)  return InvalidParameter;
 851
 852     *hatchstyle = brush->hatchstyle;
 853
 854     return Ok;
 855 }
 856
 857 GpStatus WINGDIPAPI GdipDeleteBrush(GpBrush *brush)
 858 {
 859     TRACE("(%p)\n", brush);
 860
 861     if(!brush)  return InvalidParameter;
 862
 863     switch(brush->bt)
 864     {
 865         case BrushTypePathGradient:
 866             GdipDeletePath(((GpPathGradient*) brush)->path);
 867             GdipFree(((GpPathGradient*) brush)->blendfac);
 868             GdipFree(((GpPathGradient*) brush)->blendpos);
 869             break;
 870         case BrushTypeLinearGradient:
 871             GdipFree(((GpLineGradient*)brush)->blendfac);
 872             GdipFree(((GpLineGradient*)brush)->blendpos);
 873             GdipFree(((GpLineGradient*)brush)->pblendcolor);
 874             GdipFree(((GpLineGradient*)brush)->pblendpos);
 875             break;
 876         case BrushTypeTextureFill:
 877             GdipDeleteMatrix(((GpTexture*)brush)->transform);
 878             GdipDisposeImage(((GpTexture*)brush)->image);
 879             GdipDisposeImageAttributes(((GpTexture*)brush)->imageattributes);
 880             GdipFree(((GpTexture*)brush)->bitmap_bits);
 881             break;
 882         default:
 883             break;
 884     }
 885
 886     GdipFree(brush);
 887
 888     return Ok;
 889 }
 890
 891 GpStatus WINGDIPAPI GdipGetLineGammaCorrection(GpLineGradient *line,
 892     BOOL *usinggamma)
 893 {
 894     TRACE("(%p, %p)\n", line, usinggamma);
 895
 896     if(!line || !usinggamma)
 897         return InvalidParameter;
 898
 899     *usinggamma = line->gamma;
 900
 901     return Ok;
 902 }
 903
 904 GpStatus WINGDIPAPI GdipGetLineWrapMode(GpLineGradient *brush, GpWrapMode *wrapmode)
 905 {
 906     TRACE("(%p, %p)\n", brush, wrapmode);
 907
 908     if(!brush || !wrapmode)
 909         return InvalidParameter;
 910
 911     *wrapmode = brush->wrap;
 912
 913     return Ok;
 914 }
 915
 916 GpStatus WINGDIPAPI GdipGetPathGradientBlend(GpPathGradient *brush, REAL *blend,
 917     REAL *positions, INT count)
 918 {
 919     TRACE("(%p, %p, %p, %d)\n", brush, blend, positions, count);
 920
 921     if(!brush || !blend || !positions || count <= 0)
 922         return InvalidParameter;
 923
 924     if(count < brush->blendcount)
 925         return InsufficientBuffer;
 926
 927     memcpy(blend, brush->blendfac, count*sizeof(REAL));
 928     if(brush->blendcount > 1){
 929         memcpy(positions, brush->blendpos, count*sizeof(REAL));
 930     }
 931
 932     return Ok;
 933 }
 934
 935 GpStatus WINGDIPAPI GdipGetPathGradientBlendCount(GpPathGradient *brush, INT *count)
 936 {
 937     TRACE("(%p, %p)\n", brush, count);
 938
 939     if(!brush || !count)
 940         return InvalidParameter;
 941
 942     *count = brush->blendcount;
 943
 944     return Ok;
 945 }
 946
 947 GpStatus WINGDIPAPI GdipGetPathGradientCenterPoint(GpPathGradient *grad,
 948     GpPointF *point)
 949 {
 950     TRACE("(%p, %p)\n", grad, point);
 951
 952     if(!grad || !point)
 953         return InvalidParameter;
 954
 955     point->X = grad->center.X;
 956     point->Y = grad->center.Y;
 957
 958     return Ok;
 959 }
 960
 961 GpStatus WINGDIPAPI GdipGetPathGradientCenterPointI(GpPathGradient *grad,
 962     GpPoint *point)
 963 {
 964     GpStatus ret;
 965     GpPointF ptf;
 966
 967     TRACE("(%p, %p)\n", grad, point);
 968
 969     if(!point)
 970         return InvalidParameter;
 971
 972     ret = GdipGetPathGradientCenterPoint(grad,&ptf);
 973
 974     if(ret == Ok){
 975         point->X = roundr(ptf.X);
 976         point->Y = roundr(ptf.Y);
 977     }
 978
 979     return ret;
 980 }
 981
 982 GpStatus WINGDIPAPI GdipGetPathGradientCenterColor(GpPathGradient *grad,
 983     ARGB *colors)
 984 {
 985     static int calls;
 986
 987     TRACE("(%p,%p)\n", grad, colors);
 988
 989     if(!(calls++))
 990         FIXME("not implemented\n");
 991
 992     return NotImplemented;
 993 }
 994
 995 GpStatus WINGDIPAPI GdipGetPathGradientFocusScales(GpPathGradient *grad,
 996     REAL *x, REAL *y)
 997 {
 998     TRACE("(%p, %p, %p)\n", grad, x, y);
 999
1000     if(!grad || !x || !y)
1001         return InvalidParameter;
1002
1003     *x = grad->focus.X;
1004     *y = grad->focus.Y;
1005
1006     return Ok;
1007 }
1008
1009 GpStatus WINGDIPAPI GdipGetPathGradientGammaCorrection(GpPathGradient *grad,
1010     BOOL *gamma)
1011 {
1012     TRACE("(%p, %p)\n", grad, gamma);
1013
1014     if(!grad || !gamma)
1015         return InvalidParameter;
1016
1017     *gamma = grad->gamma;
1018
1019     return Ok;
1020 }
1021
1022 GpStatus WINGDIPAPI GdipGetPathGradientPointCount(GpPathGradient *grad,
1023     INT *count)
1024 {
1025     TRACE("(%p, %p)\n", grad, count);
1026
1027     if(!grad || !count)
1028         return InvalidParameter;
1029
1030     *count = grad->path->pathdata.Count;
1031
1032     return Ok;
1033 }
1034
1035 GpStatus WINGDIPAPI GdipGetPathGradientRect(GpPathGradient *brush, GpRectF *rect)
1036 {
1037     GpStatus stat;
1038
1039     TRACE("(%p, %p)\n", brush, rect);
1040
1041     if(!brush || !rect)
1042         return InvalidParameter;
1043
1044     stat = GdipGetPathWorldBounds(brush->path, rect, NULL, NULL);
1045
1046     return stat;
1047 }
1048
1049 GpStatus WINGDIPAPI GdipGetPathGradientRectI(GpPathGradient *brush, GpRect *rect)
1050 {
1051     GpRectF rectf;
1052     GpStatus stat;
1053
1054     TRACE("(%p, %p)\n", brush, rect);
1055
1056     if(!brush || !rect)
1057         return InvalidParameter;
1058
1059     stat = GdipGetPathGradientRect(brush, &rectf);
1060     if(stat != Ok)  return stat;
1061
1062     rect->X = roundr(rectf.X);
1063     rect->Y = roundr(rectf.Y);
1064     rect->Width  = roundr(rectf.Width);
1065     rect->Height = roundr(rectf.Height);
1066
1067     return Ok;
1068 }
1069
1070 GpStatus WINGDIPAPI GdipGetPathGradientSurroundColorsWithCount(GpPathGradient
1071     *grad, ARGB *argb, INT *count)
1072 {
1073     static int calls;
1074
1075     TRACE("(%p,%p,%p)\n", grad, argb, count);
1076
1077     if(!grad || !argb || !count || (*count < grad->path->pathdata.Count))
1078         return InvalidParameter;
1079
1080     if(!(calls++))
1081         FIXME("not implemented\n");
1082
1083     return NotImplemented;
1084 }
1085
1086 GpStatus WINGDIPAPI GdipGetPathGradientSurroundColorCount(GpPathGradient *brush, INT *count)
1087 {
1088     static int calls;
1089
1090     TRACE("(%p, %p)\n", brush, count);
1091
1092     if (!brush || !count)
1093        return InvalidParameter;
1094
1095     if(!(calls++))
1096         FIXME("not implemented\n");
1097
1098     return NotImplemented;
1099 }
1100
1101 GpStatus WINGDIPAPI GdipGetPathGradientWrapMode(GpPathGradient *brush,
1102     GpWrapMode *wrapmode)
1103 {
1104     TRACE("(%p, %p)\n", brush, wrapmode);
1105
1106     if(!brush || !wrapmode)
1107         return InvalidParameter;
1108
1109     *wrapmode = brush->wrap;
1110
1111     return Ok;
1112 }
1113
1114 GpStatus WINGDIPAPI GdipGetSolidFillColor(GpSolidFill *sf, ARGB *argb)
1115 {
1116     TRACE("(%p, %p)\n", sf, argb);
1117
1118     if(!sf || !argb)
1119         return InvalidParameter;
1120
1121     *argb = sf->color;
1122
1123     return Ok;
1124 }
1125
1126 /******************************************************************************
1127  * GdipGetTextureImage [GDIPLUS.@]
1128  */
1129 GpStatus WINGDIPAPI GdipGetTextureImage(GpTexture *brush, GpImage **image)
1130 {
1131     TRACE("(%p, %p)\n", brush, image);
1132
1133     if(!brush || !image)
1134         return InvalidParameter;
1135
1136     return GdipCloneImage(brush->image, image);
1137 }
1138
1139 /******************************************************************************
1140  * GdipGetTextureTransform [GDIPLUS.@]
1141  */
1142 GpStatus WINGDIPAPI GdipGetTextureTransform(GpTexture *brush, GpMatrix *matrix)
1143 {
1144     TRACE("(%p, %p)\n", brush, matrix);
1145
1146     if(!brush || !matrix)
1147         return InvalidParameter;
1148
1149     memcpy(matrix, brush->transform, sizeof(GpMatrix));
1150
1151     return Ok;
1152 }
1153
1154 /******************************************************************************
1155  * GdipGetTextureWrapMode [GDIPLUS.@]
1156  */
1157 GpStatus WINGDIPAPI GdipGetTextureWrapMode(GpTexture *brush, GpWrapMode *wrapmode)
1158 {
1159     TRACE("(%p, %p)\n", brush, wrapmode);
1160
1161     if(!brush || !wrapmode)
1162         return InvalidParameter;
1163
1164     *wrapmode = brush->imageattributes->wrap;
1165
1166     return Ok;
1167 }
1168
1169 /******************************************************************************
1170  * GdipMultiplyTextureTransform [GDIPLUS.@]
1171  */
1172 GpStatus WINGDIPAPI GdipMultiplyTextureTransform(GpTexture* brush,
1173     GDIPCONST GpMatrix *matrix, GpMatrixOrder order)
1174 {
1175     TRACE("(%p, %p, %d)\n", brush, matrix, order);
1176
1177     if(!brush || !matrix)
1178         return InvalidParameter;
1179
1180     return GdipMultiplyMatrix(brush->transform, matrix, order);
1181 }
1182
1183 /******************************************************************************
1184  * GdipResetTextureTransform [GDIPLUS.@]
1185  */
1186 GpStatus WINGDIPAPI GdipResetTextureTransform(GpTexture* brush)
1187 {
1188     TRACE("(%p)\n", brush);
1189
1190     if(!brush)
1191         return InvalidParameter;
1192
1193     return GdipSetMatrixElements(brush->transform, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
1194 }
1195
1196 /******************************************************************************
1197  * GdipScaleTextureTransform [GDIPLUS.@]
1198  */
1199 GpStatus WINGDIPAPI GdipScaleTextureTransform(GpTexture* brush,
1200     REAL sx, REAL sy, GpMatrixOrder order)
1201 {
1202     TRACE("(%p, %.2f, %.2f, %d)\n", brush, sx, sy, order);
1203
1204     if(!brush)
1205         return InvalidParameter;
1206
1207     return GdipScaleMatrix(brush->transform, sx, sy, order);
1208 }
1209
1210 GpStatus WINGDIPAPI GdipSetLineBlend(GpLineGradient *brush,
1211     GDIPCONST REAL *factors, GDIPCONST REAL* positions, INT count)
1212 {
1213     REAL *new_blendfac, *new_blendpos;
1214
1215     TRACE("(%p, %p, %p, %i)\n", brush, factors, positions, count);
1216
1217     if(!brush || !factors || !positions || count <= 0 ||
1218        (count >= 2 && (positions[0] != 0.0f || positions[count-1] != 1.0f)))
1219         return InvalidParameter;
1220
1221     new_blendfac = GdipAlloc(count * sizeof(REAL));
1222     new_blendpos = GdipAlloc(count * sizeof(REAL));
1223
1224     if (!new_blendfac || !new_blendpos)
1225     {
1226         GdipFree(new_blendfac);
1227         GdipFree(new_blendpos);
1228         return OutOfMemory;
1229     }
1230
1231     memcpy(new_blendfac, factors, count * sizeof(REAL));
1232     memcpy(new_blendpos, positions, count * sizeof(REAL));
1233
1234     GdipFree(brush->blendfac);
1235     GdipFree(brush->blendpos);
1236
1237     brush->blendcount = count;
1238     brush->blendfac = new_blendfac;
1239     brush->blendpos = new_blendpos;
1240
1241     return Ok;
1242 }
1243
1244 GpStatus WINGDIPAPI GdipGetLineBlend(GpLineGradient *brush, REAL *factors,
1245     REAL *positions, INT count)
1246 {
1247     TRACE("(%p, %p, %p, %i)\n", brush, factors, positions, count);
1248
1249     if (!brush || !factors || !positions || count <= 0)
1250         return InvalidParameter;
1251
1252     if (count < brush->blendcount)
1253         return InsufficientBuffer;
1254
1255     memcpy(factors, brush->blendfac, brush->blendcount * sizeof(REAL));
1256     memcpy(positions, brush->blendpos, brush->blendcount * sizeof(REAL));
1257
1258     return Ok;
1259 }
1260
1261 GpStatus WINGDIPAPI GdipGetLineBlendCount(GpLineGradient *brush, INT *count)
1262 {
1263     TRACE("(%p, %p)\n", brush, count);
1264
1265     if (!brush || !count)
1266         return InvalidParameter;
1267
1268     *count = brush->blendcount;
1269
1270     return Ok;
1271 }
1272
1273 GpStatus WINGDIPAPI GdipSetLineGammaCorrection(GpLineGradient *line,
1274     BOOL usegamma)
1275 {
1276     TRACE("(%p, %d)\n", line, usegamma);
1277
1278     if(!line)
1279         return InvalidParameter;
1280
1281     line->gamma = usegamma;
1282
1283     return Ok;
1284 }
1285
1286 GpStatus WINGDIPAPI GdipSetLineSigmaBlend(GpLineGradient *line, REAL focus,
1287     REAL scale)
1288 {
1289     REAL factors[33];
1290     REAL positions[33];
1291     int num_points = 0;
1292     int i;
1293     const int precision = 16;
1294     REAL erf_range; /* we use values erf(-erf_range) through erf(+erf_range) */
1295     REAL min_erf;
1296     REAL scale_erf;
1297
1298     TRACE("(%p, %0.2f, %0.2f)\n", line, focus, scale);
1299
1300     if(!line || focus < 0.0 || focus > 1.0 || scale < 0.0 || scale > 1.0)
1301         return InvalidParameter;
1302
1303     /* we want 2 standard deviations */
1304     erf_range = 2.0 / sqrt(2);
1305
1306     /* calculate the constants we need to normalize the error function to be
1307         between 0.0 and scale over the range we need */
1308     min_erf = erf(-erf_range);
1309     scale_erf = scale / (-2.0 * min_erf);
1310
1311     if (focus != 0.0)
1312     {
1313         positions[0] = 0.0;
1314         factors[0] = 0.0;
1315         for (i=1; i<precision; i++)
1316         {
1317             positions[i] = focus * i / precision;
1318             factors[i] = scale_erf * (erf(2 * erf_range * i / precision - erf_range) - min_erf);
1319         }
1320         num_points += precision;
1321     }
1322
1323     positions[num_points] = focus;
1324     factors[num_points] = scale;
1325     num_points += 1;
1326
1327     if (focus != 1.0)
1328     {
1329         for (i=1; i<precision; i++)
1330         {
1331             positions[i+num_points-1] = (focus + ((1.0-focus) * i / precision));
1332             factors[i+num_points-1] = scale_erf * (erf(erf_range - 2 * erf_range * i / precision) - min_erf);
1333         }
1334         num_points += precision;
1335         positions[num_points-1] = 1.0;
1336         factors[num_points-1] = 0.0;
1337     }
1338
1339     return GdipSetLineBlend(line, factors, positions, num_points);
1340 }
1341
1342 GpStatus WINGDIPAPI GdipSetLineWrapMode(GpLineGradient *line,
1343     GpWrapMode wrap)
1344 {
1345     TRACE("(%p, %d)\n", line, wrap);
1346
1347     if(!line || wrap == WrapModeClamp)
1348         return InvalidParameter;
1349
1350     line->wrap = wrap;
1351
1352     return Ok;
1353 }
1354
1355 GpStatus WINGDIPAPI GdipSetPathGradientBlend(GpPathGradient *brush, GDIPCONST REAL *blend,
1356     GDIPCONST REAL *pos, INT count)
1357 {
1358     static int calls;
1359
1360     TRACE("(%p,%p,%p,%i)\n", brush, blend, pos, count);
1361
1362     if(!(calls++))
1363         FIXME("not implemented\n");
1364
1365     return NotImplemented;
1366 }
1367
1368 GpStatus WINGDIPAPI GdipSetPathGradientLinearBlend(GpPathGradient *brush,
1369     REAL focus, REAL scale)
1370 {
1371     static int calls;
1372
1373     TRACE("(%p,%0.2f,%0.2f)\n", brush, focus, scale);
1374
1375     if(!(calls++))
1376         FIXME("not implemented\n");
1377
1378     return NotImplemented;
1379 }
1380
1381 GpStatus WINGDIPAPI GdipSetPathGradientPresetBlend(GpPathGradient *brush,
1382     GDIPCONST ARGB *blend, GDIPCONST REAL *pos, INT count)
1383 {
1384     FIXME("(%p,%p,%p,%i): stub\n", brush, blend, pos, count);
1385     return NotImplemented;
1386 }
1387
1388 GpStatus WINGDIPAPI GdipGetPathGradientPresetBlend(GpPathGradient *brush,
1389     ARGB *blend, REAL *pos, INT count)
1390 {
1391     FIXME("(%p,%p,%p,%i): stub\n", brush, blend, pos, count);
1392     return NotImplemented;
1393 }
1394
1395 GpStatus WINGDIPAPI GdipGetPathGradientPresetBlendCount(GpPathGradient *brush,
1396     INT *count)
1397 {
1398     FIXME("(%p,%p): stub\n", brush, count);
1399     return NotImplemented;
1400 }
1401
1402 GpStatus WINGDIPAPI GdipSetPathGradientCenterColor(GpPathGradient *grad,
1403     ARGB argb)
1404 {
1405     TRACE("(%p, %x)\n", grad, argb);
1406
1407     if(!grad)
1408         return InvalidParameter;
1409
1410     grad->centercolor = argb;
1411     return Ok;
1412 }
1413
1414 GpStatus WINGDIPAPI GdipSetPathGradientCenterPoint(GpPathGradient *grad,
1415     GpPointF *point)
1416 {
1417     TRACE("(%p, %s)\n", grad, debugstr_pointf(point));
1418
1419     if(!grad || !point)
1420         return InvalidParameter;
1421
1422     grad->center.X = point->X;
1423     grad->center.Y = point->Y;
1424
1425     return Ok;
1426 }
1427
1428 GpStatus WINGDIPAPI GdipSetPathGradientCenterPointI(GpPathGradient *grad,
1429     GpPoint *point)
1430 {
1431     GpPointF ptf;
1432
1433     TRACE("(%p, %p)\n", grad, point);
1434
1435     if(!point)
1436         return InvalidParameter;
1437
1438     ptf.X = (REAL)point->X;
1439     ptf.Y = (REAL)point->Y;
1440
1441     return GdipSetPathGradientCenterPoint(grad,&ptf);
1442 }
1443
1444 GpStatus WINGDIPAPI GdipSetPathGradientFocusScales(GpPathGradient *grad,
1445     REAL x, REAL y)
1446 {
1447     TRACE("(%p, %.2f, %.2f)\n", grad, x, y);
1448
1449     if(!grad)
1450         return InvalidParameter;
1451
1452     grad->focus.X = x;
1453     grad->focus.Y = y;
1454
1455     return Ok;
1456 }
1457
1458 GpStatus WINGDIPAPI GdipSetPathGradientGammaCorrection(GpPathGradient *grad,
1459     BOOL gamma)
1460 {
1461     TRACE("(%p, %d)\n", grad, gamma);
1462
1463     if(!grad)
1464         return InvalidParameter;
1465
1466     grad->gamma = gamma;
1467
1468     return Ok;
1469 }
1470
1471 GpStatus WINGDIPAPI GdipSetPathGradientSigmaBlend(GpPathGradient *grad,
1472     REAL focus, REAL scale)
1473 {
1474     static int calls;
1475
1476     TRACE("(%p,%0.2f,%0.2f)\n", grad, focus, scale);
1477
1478     if(!grad || focus < 0.0 || focus > 1.0 || scale < 0.0 || scale > 1.0)
1479         return InvalidParameter;
1480
1481     if(!(calls++))
1482         FIXME("not implemented\n");
1483
1484     return NotImplemented;
1485 }
1486
1487 GpStatus WINGDIPAPI GdipSetPathGradientSurroundColorsWithCount(GpPathGradient
1488     *grad, GDIPCONST ARGB *argb, INT *count)
1489 {
1490     static int calls;
1491
1492     TRACE("(%p,%p,%p)\n", grad, argb, count);
1493
1494     if(!grad || !argb || !count || (*count <= 0) ||
1495         (*count > grad->path->pathdata.Count))
1496         return InvalidParameter;
1497
1498     if(!(calls++))
1499         FIXME("not implemented\n");
1500
1501     return NotImplemented;
1502 }
1503
1504 GpStatus WINGDIPAPI GdipSetPathGradientWrapMode(GpPathGradient *grad,
1505     GpWrapMode wrap)
1506 {
1507     TRACE("(%p, %d)\n", grad, wrap);
1508
1509     if(!grad)
1510         return InvalidParameter;
1511
1512     grad->wrap = wrap;
1513
1514     return Ok;
1515 }
1516
1517 GpStatus WINGDIPAPI GdipSetPathGradientTransform(GpPathGradient *grad,
1518     GpMatrix *matrix)
1519 {
1520     static int calls;
1521
1522     TRACE("(%p,%p)\n", grad, matrix);
1523
1524     if(!(calls++))
1525         FIXME("not implemented\n");
1526
1527     return NotImplemented;
1528 }
1529
1530 GpStatus WINGDIPAPI GdipGetPathGradientTransform(GpPathGradient *grad,
1531     GpMatrix *matrix)
1532 {
1533     static int calls;
1534
1535     TRACE("(%p,%p)\n", grad, matrix);
1536
1537     if(!(calls++))
1538         FIXME("not implemented\n");
1539
1540     return NotImplemented;
1541 }
1542
1543 GpStatus WINGDIPAPI GdipMultiplyPathGradientTransform(GpPathGradient *grad,
1544     GDIPCONST GpMatrix *matrix, GpMatrixOrder order)
1545 {
1546     static int calls;
1547
1548     TRACE("(%p,%p,%i)\n", grad, matrix, order);
1549
1550     if(!(calls++))
1551         FIXME("not implemented\n");
1552
1553     return NotImplemented;
1554 }
1555
1556 GpStatus WINGDIPAPI GdipRotatePathGradientTransform(GpPathGradient *grad,
1557     REAL angle, GpMatrixOrder order)
1558 {
1559     static int calls;
1560
1561     TRACE("(%p,%0.2f,%i)\n", grad, angle, order);
1562
1563     if(!(calls++))
1564         FIXME("not implemented\n");
1565
1566     return NotImplemented;
1567 }
1568
1569 GpStatus WINGDIPAPI GdipScalePathGradientTransform(GpPathGradient *grad,
1570     REAL sx, REAL sy, GpMatrixOrder order)
1571 {
1572     static int calls;
1573
1574     TRACE("(%p,%0.2f,%0.2f,%i)\n", grad, sx, sy, order);
1575
1576     if(!(calls++))
1577         FIXME("not implemented\n");
1578
1579     return NotImplemented;
1580 }
1581
1582 GpStatus WINGDIPAPI GdipTranslatePathGradientTransform(GpPathGradient *grad,
1583     REAL dx, REAL dy, GpMatrixOrder order)
1584 {
1585     static int calls;
1586
1587     TRACE("(%p,%0.2f,%0.2f,%i)\n", grad, dx, dy, order);
1588
1589     if(!(calls++))
1590         FIXME("not implemented\n");
1591
1592     return NotImplemented;
1593 }
1594
1595 GpStatus WINGDIPAPI GdipSetSolidFillColor(GpSolidFill *sf, ARGB argb)
1596 {
1597     TRACE("(%p, %x)\n", sf, argb);
1598
1599     if(!sf)
1600         return InvalidParameter;
1601
1602     sf->color = argb;
1603     return Ok;
1604 }
1605
1606 /******************************************************************************
1607  * GdipSetTextureTransform [GDIPLUS.@]
1608  */
1609 GpStatus WINGDIPAPI GdipSetTextureTransform(GpTexture *texture,
1610     GDIPCONST GpMatrix *matrix)
1611 {
1612     TRACE("(%p, %p)\n", texture, matrix);
1613
1614     if(!texture || !matrix)
1615         return InvalidParameter;
1616
1617     memcpy(texture->transform, matrix, sizeof(GpMatrix));
1618
1619     return Ok;
1620 }
1621
1622 /******************************************************************************
1623  * GdipSetTextureWrapMode [GDIPLUS.@]
1624  *
1625  * WrapMode not used, only stored
1626  */
1627 GpStatus WINGDIPAPI GdipSetTextureWrapMode(GpTexture *brush, GpWrapMode wrapmode)
1628 {
1629     TRACE("(%p, %d)\n", brush, wrapmode);
1630
1631     if(!brush)
1632         return InvalidParameter;
1633
1634     brush->imageattributes->wrap = wrapmode;
1635
1636     return Ok;
1637 }
1638
1639 GpStatus WINGDIPAPI GdipSetLineColors(GpLineGradient *brush, ARGB color1,
1640     ARGB color2)
1641 {
1642     TRACE("(%p, %x, %x)\n", brush, color1, color2);
1643
1644     if(!brush)
1645         return InvalidParameter;
1646
1647     brush->startcolor = color1;
1648     brush->endcolor   = color2;
1649
1650     return Ok;
1651 }
1652
1653 GpStatus WINGDIPAPI GdipGetLineColors(GpLineGradient *brush, ARGB *colors)
1654 {
1655     TRACE("(%p, %p)\n", brush, colors);
1656
1657     if(!brush || !colors)
1658         return InvalidParameter;
1659
1660     colors[0] = brush->startcolor;
1661     colors[1] = brush->endcolor;
1662
1663     return Ok;
1664 }
1665
1666 /******************************************************************************
1667  * GdipRotateTextureTransform [GDIPLUS.@]
1668  */
1669 GpStatus WINGDIPAPI GdipRotateTextureTransform(GpTexture* brush, REAL angle,
1670     GpMatrixOrder order)
1671 {
1672     TRACE("(%p, %.2f, %d)\n", brush, angle, order);
1673
1674     if(!brush)
1675         return InvalidParameter;
1676
1677     return GdipRotateMatrix(brush->transform, angle, order);
1678 }
1679
1680 GpStatus WINGDIPAPI GdipSetLineLinearBlend(GpLineGradient *brush, REAL focus,
1681     REAL scale)
1682 {
1683     REAL factors[3];
1684     REAL positions[3];
1685     int num_points = 0;
1686
1687     TRACE("(%p,%.2f,%.2f)\n", brush, focus, scale);
1688
1689     if (!brush) return InvalidParameter;
1690
1691     if (focus != 0.0)
1692     {
1693         factors[num_points] = 0.0;
1694         positions[num_points] = 0.0;
1695         num_points++;
1696     }
1697
1698     factors[num_points] = scale;
1699     positions[num_points] = focus;
1700     num_points++;
1701
1702     if (focus != 1.0)
1703     {
1704         factors[num_points] = 0.0;
1705         positions[num_points] = 1.0;
1706         num_points++;
1707     }
1708
1709     return GdipSetLineBlend(brush, factors, positions, num_points);
1710 }
1711
1712 GpStatus WINGDIPAPI GdipSetLinePresetBlend(GpLineGradient *brush,
1713     GDIPCONST ARGB *blend, GDIPCONST REAL* positions, INT count)
1714 {
1715     ARGB *new_color;
1716     REAL *new_pos;
1717     TRACE("(%p,%p,%p,%i)\n", brush, blend, positions, count);
1718
1719     if (!brush || !blend || !positions || count < 2 ||
1720         positions[0] != 0.0f || positions[count-1] != 1.0f)
1721     {
1722         return InvalidParameter;
1723     }
1724
1725     new_color = GdipAlloc(count * sizeof(ARGB));
1726     new_pos = GdipAlloc(count * sizeof(REAL));
1727     if (!new_color || !new_pos)
1728     {
1729         GdipFree(new_color);
1730         GdipFree(new_pos);
1731         return OutOfMemory;
1732     }
1733
1734     memcpy(new_color, blend, sizeof(ARGB) * count);
1735     memcpy(new_pos, positions, sizeof(REAL) * count);
1736
1737     GdipFree(brush->pblendcolor);
1738     GdipFree(brush->pblendpos);
1739
1740     brush->pblendcolor = new_color;
1741     brush->pblendpos = new_pos;
1742     brush->pblendcount = count;
1743
1744     return Ok;
1745 }
1746
1747 GpStatus WINGDIPAPI GdipGetLinePresetBlend(GpLineGradient *brush,
1748     ARGB *blend, REAL* positions, INT count)
1749 {
1750     if (!brush || !blend || !positions || count < 2)
1751         return InvalidParameter;
1752
1753     if (brush->pblendcount == 0)
1754         return GenericError;
1755
1756     if (count < brush->pblendcount)
1757         return InsufficientBuffer;
1758
1759     memcpy(blend, brush->pblendcolor, sizeof(ARGB) * brush->pblendcount);
1760     memcpy(positions, brush->pblendpos, sizeof(REAL) * brush->pblendcount);
1761
1762     return Ok;
1763 }
1764
1765 GpStatus WINGDIPAPI GdipGetLinePresetBlendCount(GpLineGradient *brush,
1766     INT *count)
1767 {
1768     if (!brush || !count)
1769         return InvalidParameter;
1770
1771     *count = brush->pblendcount;
1772
1773     return Ok;
1774 }
1775
1776 GpStatus WINGDIPAPI GdipResetLineTransform(GpLineGradient *brush)
1777 {
1778     static int calls;
1779
1780     TRACE("(%p)\n", brush);
1781
1782     if(!(calls++))
1783         FIXME("not implemented\n");
1784
1785     return NotImplemented;
1786 }
1787
1788 GpStatus WINGDIPAPI GdipSetLineTransform(GpLineGradient *brush,
1789     GDIPCONST GpMatrix *matrix)
1790 {
1791     static int calls;
1792
1793     TRACE("(%p,%p)\n", brush,  matrix);
1794
1795     if(!(calls++))
1796         FIXME("not implemented\n");
1797
1798     return NotImplemented;
1799 }
1800
1801 GpStatus WINGDIPAPI GdipGetLineTransform(GpLineGradient *brush, GpMatrix *matrix)
1802 {
1803     static int calls;
1804
1805     TRACE("(%p,%p)\n", brush, matrix);
1806
1807     if(!(calls++))
1808         FIXME("not implemented\n");
1809
1810     return NotImplemented;
1811 }
1812
1813 GpStatus WINGDIPAPI GdipScaleLineTransform(GpLineGradient *brush, REAL sx, REAL sy,
1814     GpMatrixOrder order)
1815 {
1816     static int calls;
1817
1818     TRACE("(%p,%0.2f,%0.2f,%u)\n", brush, sx, sy, order);
1819
1820     if(!(calls++))
1821         FIXME("not implemented\n");
1822
1823     return NotImplemented;
1824 }
1825
1826 GpStatus WINGDIPAPI GdipMultiplyLineTransform(GpLineGradient *brush,
1827     GDIPCONST GpMatrix *matrix, GpMatrixOrder order)
1828 {
1829     static int calls;
1830
1831     TRACE("(%p,%p,%u)\n", brush, matrix, order);
1832
1833     if(!(calls++))
1834         FIXME("not implemented\n");
1835
1836     return NotImplemented;
1837 }
1838
1839 GpStatus WINGDIPAPI GdipTranslateLineTransform(GpLineGradient* brush,
1840         REAL dx, REAL dy, GpMatrixOrder order)
1841 {
1842     static int calls;
1843
1844     TRACE("(%p,%f,%f,%d)\n", brush, dx, dy, order);
1845
1846     if(!(calls++))
1847         FIXME("not implemented\n");
1848
1849     return Ok;
1850 }
1851
1852 /******************************************************************************
1853  * GdipTranslateTextureTransform [GDIPLUS.@]
1854  */
1855 GpStatus WINGDIPAPI GdipTranslateTextureTransform(GpTexture* brush, REAL dx, REAL dy,
1856     GpMatrixOrder order)
1857 {
1858     TRACE("(%p, %.2f, %.2f, %d)\n", brush, dx, dy, order);
1859
1860     if(!brush)
1861         return InvalidParameter;
1862
1863     return GdipTranslateMatrix(brush->transform, dx, dy, order);
1864 }
1865
1866 GpStatus WINGDIPAPI GdipGetLineRect(GpLineGradient *brush, GpRectF *rect)
1867 {
1868     TRACE("(%p, %p)\n", brush, rect);
1869
1870     if(!brush || !rect)
1871         return InvalidParameter;
1872
1873     *rect = brush->rect;
1874
1875     return Ok;
1876 }
1877
1878 GpStatus WINGDIPAPI GdipGetLineRectI(GpLineGradient *brush, GpRect *rect)
1879 {
1880     GpRectF  rectF;
1881     GpStatus ret;
1882
1883     TRACE("(%p, %p)\n", brush, rect);
1884
1885     if(!rect)
1886         return InvalidParameter;
1887
1888     ret = GdipGetLineRect(brush, &rectF);
1889
1890     if(ret == Ok){
1891         rect->X      = roundr(rectF.X);
1892         rect->Y      = roundr(rectF.Y);
1893         rect->Width  = roundr(rectF.Width);
1894         rect->Height = roundr(rectF.Height);
1895     }
1896
1897     return ret;
1898 }
1899
1900 GpStatus WINGDIPAPI GdipRotateLineTransform(GpLineGradient* brush,
1901     REAL angle, GpMatrixOrder order)
1902 {
1903     static int calls;
1904
1905     TRACE("(%p,%0.2f,%u)\n", brush, angle, order);
1906
1907     if(!brush)
1908         return InvalidParameter;
1909
1910     if(!(calls++))
1911         FIXME("(%p, %.2f, %d) stub\n", brush, angle, order);
1912
1913     return NotImplemented;
1914 }