dlls/gdiplus/image.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 #define PIXELFORMATBPP(x) ((x) ? ((x) >> 8) & 255 : 24)
  38
  39 static INT ipicture_pixel_height(IPicture *pic)
  40 {
  41     HDC hdcref;
  42     OLE_YSIZE_HIMETRIC y;
  43
  44     IPicture_get_Height(pic, &y);
  45
  46     hdcref = GetDC(0);
  47
  48     y = MulDiv(y, GetDeviceCaps(hdcref, LOGPIXELSY), INCH_HIMETRIC);
  49     ReleaseDC(0, hdcref);
  50
  51     return y;
  52 }
  53
  54 static INT ipicture_pixel_width(IPicture *pic)
  55 {
  56     HDC hdcref;
  57     OLE_XSIZE_HIMETRIC x;
  58
  59     IPicture_get_Width(pic, &x);
  60
  61     hdcref = GetDC(0);
  62
  63     x = MulDiv(x, GetDeviceCaps(hdcref, LOGPIXELSX), INCH_HIMETRIC);
  64
  65     ReleaseDC(0, hdcref);
  66
  67     return x;
  68 }
  69
  70 GpStatus WINGDIPAPI GdipBitmapGetPixel(GpBitmap* bitmap, INT x, INT y,
  71     ARGB *color)
  72 {
  73     static int calls;
  74     TRACE("%p %d %d %p\n", bitmap, x, y, color);
  75
  76     if(!bitmap || !color)
  77         return InvalidParameter;
  78
  79     if(!(calls++))
  80         FIXME("not implemented\n");
  81
  82     *color = 0xdeadbeef;
  83
  84     return NotImplemented;
  85 }
  86
  87 /* This function returns a pointer to an array of pixels that represents the
  88  * bitmap. The *entire* bitmap is locked according to the lock mode specified by
  89  * flags.  It is correct behavior that a user who calls this function with write
  90  * privileges can write to the whole bitmap (not just the area in rect).
  91  *
  92  * FIXME: only used portion of format is bits per pixel. */
  93 GpStatus WINGDIPAPI GdipBitmapLockBits(GpBitmap* bitmap, GDIPCONST GpRect* rect,
  94     UINT flags, PixelFormat format, BitmapData* lockeddata)
  95 {
  96     BOOL bm_is_selected;
  97     INT stride, bitspp = PIXELFORMATBPP(format);
  98     OLE_HANDLE hbm;
  99     HDC hdc;
 100     HBITMAP old = NULL;
 101     BITMAPINFO bmi;
 102     BYTE *buff = NULL;
 103     UINT abs_height;
 104     GpRect act_rect; /* actual rect to be used */
 105
 106     TRACE("%p %p %d %d %p\n", bitmap, rect, flags, format, lockeddata);
 107
 108     if(!lockeddata || !bitmap)
 109         return InvalidParameter;
 110
 111     if(rect){
 112         if(rect->X < 0 || rect->Y < 0 || (rect->X + rect->Width > bitmap->width) ||
 113           (rect->Y + rect->Height > bitmap->height) || !flags)
 114             return InvalidParameter;
 115
 116         act_rect = *rect;
 117     }
 118     else{
 119         act_rect.X = act_rect.Y = 0;
 120         act_rect.Width  = bitmap->width;
 121         act_rect.Height = bitmap->height;
 122     }
 123
 124     if(flags & ImageLockModeUserInputBuf)
 125         return NotImplemented;
 126
 127     if(bitmap->lockmode)
 128         return WrongState;
 129
 130     IPicture_get_Handle(bitmap->image.picture, &hbm);
 131     IPicture_get_CurDC(bitmap->image.picture, &hdc);
 132     bm_is_selected = (hdc != 0);
 133
 134     bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
 135     bmi.bmiHeader.biBitCount = 0;
 136
 137     if(!bm_is_selected){
 138         hdc = CreateCompatibleDC(0);
 139         old = SelectObject(hdc, (HBITMAP)hbm);
 140     }
 141
 142     /* fill out bmi */
 143     GetDIBits(hdc, (HBITMAP)hbm, 0, 0, NULL, &bmi, DIB_RGB_COLORS);
 144
 145     abs_height = abs(bmi.bmiHeader.biHeight);
 146     stride = bmi.bmiHeader.biWidth * bitspp / 8;
 147     stride = (stride + 3) & ~3;
 148
 149     buff = GdipAlloc(stride * abs_height);
 150
 151     bmi.bmiHeader.biBitCount = bitspp;
 152
 153     if(buff)
 154         GetDIBits(hdc, (HBITMAP)hbm, 0, abs_height, buff, &bmi, DIB_RGB_COLORS);
 155
 156     if(!bm_is_selected){
 157         SelectObject(hdc, old);
 158         DeleteDC(hdc);
 159     }
 160
 161     if(!buff)
 162         return OutOfMemory;
 163
 164     lockeddata->Width  = act_rect.Width;
 165     lockeddata->Height = act_rect.Height;
 166     lockeddata->PixelFormat = format;
 167     lockeddata->Reserved = flags;
 168
 169     if(bmi.bmiHeader.biHeight > 0){
 170         lockeddata->Stride = -stride;
 171         lockeddata->Scan0  = buff + (bitspp / 8) * act_rect.X +
 172                              stride * (abs_height - 1 - act_rect.Y);
 173     }
 174     else{
 175         lockeddata->Stride = stride;
 176         lockeddata->Scan0  = buff + (bitspp / 8) * act_rect.X + stride * act_rect.Y;
 177     }
 178
 179     bitmap->lockmode = flags;
 180     bitmap->numlocks++;
 181
 182     bitmap->bitmapbits = buff;
 183
 184     return Ok;
 185 }
 186
 187 GpStatus WINGDIPAPI GdipBitmapUnlockBits(GpBitmap* bitmap,
 188     BitmapData* lockeddata)
 189 {
 190     OLE_HANDLE hbm;
 191     HDC hdc;
 192     HBITMAP old = NULL;
 193     BOOL bm_is_selected;
 194     BITMAPINFO bmi;
 195
 196     if(!bitmap || !lockeddata)
 197         return InvalidParameter;
 198
 199     if(!bitmap->lockmode)
 200         return WrongState;
 201
 202     if(lockeddata->Reserved & ImageLockModeUserInputBuf)
 203         return NotImplemented;
 204
 205     if(lockeddata->Reserved & ImageLockModeRead){
 206         if(!(--bitmap->numlocks))
 207             bitmap->lockmode = 0;
 208
 209         GdipFree(bitmap->bitmapbits);
 210         bitmap->bitmapbits = NULL;
 211         return Ok;
 212     }
 213
 214     IPicture_get_Handle(bitmap->image.picture, &hbm);
 215     IPicture_get_CurDC(bitmap->image.picture, &hdc);
 216     bm_is_selected = (hdc != 0);
 217
 218     bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
 219     bmi.bmiHeader.biBitCount = 0;
 220
 221     if(!bm_is_selected){
 222         hdc = CreateCompatibleDC(0);
 223         old = SelectObject(hdc, (HBITMAP)hbm);
 224     }
 225
 226     GetDIBits(hdc, (HBITMAP)hbm, 0, 0, NULL, &bmi, DIB_RGB_COLORS);
 227     bmi.bmiHeader.biBitCount = PIXELFORMATBPP(lockeddata->PixelFormat);
 228     SetDIBits(hdc, (HBITMAP)hbm, 0, abs(bmi.bmiHeader.biHeight),
 229               bitmap->bitmapbits, &bmi, DIB_RGB_COLORS);
 230
 231     if(!bm_is_selected){
 232         SelectObject(hdc, old);
 233         DeleteDC(hdc);
 234     }
 235
 236     GdipFree(bitmap->bitmapbits);
 237     bitmap->bitmapbits = NULL;
 238     bitmap->lockmode = 0;
 239
 240     return Ok;
 241 }
 242
 243 GpStatus WINGDIPAPI GdipCloneImage(GpImage *image, GpImage **cloneImage)
 244 {
 245     IStream* stream;
 246     HRESULT hr;
 247     INT size;
 248
 249     TRACE("%p, %p\n", image, cloneImage);
 250
 251     if (!image || !cloneImage)
 252         return InvalidParameter;
 253
 254     hr = CreateStreamOnHGlobal(0, TRUE, &stream);
 255     if (FAILED(hr))
 256         return GenericError;
 257
 258     *cloneImage = GdipAlloc(sizeof(GpImage));
 259     if (!*cloneImage)
 260     {
 261         IStream_Release(stream);
 262         return OutOfMemory;
 263     }
 264     (*cloneImage)->type = image->type;
 265     (*cloneImage)->flags = image->flags;
 266
 267     hr = IPicture_SaveAsFile(image->picture, stream, FALSE, &size);
 268     if(FAILED(hr))
 269     {
 270         WARN("Failed to save image on stream\n");
 271         goto out;
 272     }
 273
 274     hr = OleLoadPicture(stream, size, FALSE, &IID_IPicture,
 275             (LPVOID*) &(*cloneImage)->picture);
 276     if (FAILED(hr))
 277     {
 278         WARN("Failed to load image from stream\n");
 279         goto out;
 280     }
 281
 282     IStream_Release(stream);
 283     return Ok;
 284 out:
 285     IStream_Release(stream);
 286     GdipFree(*cloneImage);
 287     *cloneImage = NULL;
 288     return GenericError;
 289 }
 290
 291 GpStatus WINGDIPAPI GdipCreateBitmapFromFile(GDIPCONST WCHAR* filename,
 292     GpBitmap **bitmap)
 293 {
 294     GpStatus stat;
 295     IStream *stream;
 296
 297     TRACE("(%s) %p\n", debugstr_w(filename), bitmap);
 298
 299     if(!filename || !bitmap)
 300         return InvalidParameter;
 301
 302     stat = GdipCreateStreamOnFile(filename, GENERIC_READ, &stream);
 303
 304     if(stat != Ok)
 305         return stat;
 306
 307     stat = GdipCreateBitmapFromStream(stream, bitmap);
 308
 309     IStream_Release(stream);
 310
 311     return stat;
 312 }
 313
 314 GpStatus WINGDIPAPI GdipCreateBitmapFromGdiDib(GDIPCONST BITMAPINFO* info,
 315                                                VOID *bits, GpBitmap **bitmap)
 316 {
 317     DWORD height, stride;
 318     PixelFormat format;
 319
 320     FIXME("(%p, %p, %p) - partially implemented\n", info, bits, bitmap);
 321
 322     height = abs(info->bmiHeader.biHeight);
 323     stride = ((info->bmiHeader.biWidth * info->bmiHeader.biBitCount + 31) >> 3) & ~3;
 324
 325     if(info->bmiHeader.biHeight > 0) /* bottom-up */
 326     {
 327         bits = (BYTE*)bits + (height - 1) * stride;
 328         stride = -stride;
 329     }
 330
 331     switch(info->bmiHeader.biBitCount) {
 332     case 1:
 333         format = PixelFormat1bppIndexed;
 334         break;
 335     case 4:
 336         format = PixelFormat4bppIndexed;
 337         break;
 338     case 8:
 339         format = PixelFormat8bppIndexed;
 340         break;
 341     case 24:
 342         format = PixelFormat24bppRGB;
 343         break;
 344     default:
 345         FIXME("don't know how to handle %d bpp\n", info->bmiHeader.biBitCount);
 346         *bitmap = NULL;
 347         return InvalidParameter;
 348     }
 349
 350     return GdipCreateBitmapFromScan0(info->bmiHeader.biWidth, height, stride, format,
 351                                      bits, bitmap);
 352
 353 }
 354
 355 /* FIXME: no icm */
 356 GpStatus WINGDIPAPI GdipCreateBitmapFromFileICM(GDIPCONST WCHAR* filename,
 357     GpBitmap **bitmap)
 358 {
 359     TRACE("(%s) %p\n", debugstr_w(filename), bitmap);
 360
 361     return GdipCreateBitmapFromFile(filename, bitmap);
 362 }
 363
 364 GpStatus WINGDIPAPI GdipCreateBitmapFromResource(HINSTANCE hInstance,
 365     GDIPCONST WCHAR* lpBitmapName, GpBitmap** bitmap)
 366 {
 367     HBITMAP hbm;
 368     GpStatus stat = InvalidParameter;
 369
 370     TRACE("%p (%s) %p\n", hInstance, debugstr_w(lpBitmapName), bitmap);
 371
 372     if(!lpBitmapName || !bitmap)
 373         return InvalidParameter;
 374
 375     /* load DIB */
 376     hbm = (HBITMAP)LoadImageW(hInstance,lpBitmapName,IMAGE_BITMAP,0,0,LR_CREATEDIBSECTION);
 377
 378     if(hbm){
 379         stat = GdipCreateBitmapFromHBITMAP(hbm, NULL, bitmap);
 380         DeleteObject(hbm);
 381     }
 382
 383     return stat;
 384 }
 385
 386 GpStatus WINGDIPAPI GdipCreateHBITMAPFromBitmap(GpBitmap* bitmap,
 387     HBITMAP* hbmReturn, ARGB background)
 388 {
 389     FIXME("stub\n");
 390
 391     hbmReturn = NULL;
 392
 393     return NotImplemented;
 394 }
 395
 396 GpStatus WINGDIPAPI GdipConvertToEmfPlus(const GpGraphics* ref,
 397     GpMetafile* metafile, BOOL* succ, EmfType emfType,
 398     const WCHAR* description, GpMetafile** out_metafile)
 399 {
 400     static int calls;
 401
 402     if(!ref || !metafile || !out_metafile)
 403         return InvalidParameter;
 404
 405     *succ = FALSE;
 406     *out_metafile = NULL;
 407
 408     if(!(calls++))
 409         FIXME("not implemented\n");
 410
 411     return NotImplemented;
 412 }
 413
 414 /* FIXME: this should create a bitmap in the given size with the attributes
 415  * (resolution etc.) of the graphics object */
 416 GpStatus WINGDIPAPI GdipCreateBitmapFromGraphics(INT width, INT height,
 417     GpGraphics* target, GpBitmap** bitmap)
 418 {
 419     static int calls;
 420     GpStatus ret;
 421
 422     if(!target || !bitmap)
 423         return InvalidParameter;
 424
 425     if(!(calls++))
 426         FIXME("hacked stub\n");
 427
 428     ret = GdipCreateBitmapFromScan0(width, height, 0, PixelFormat24bppRGB,
 429                                     NULL, bitmap);
 430
 431     return ret;
 432 }
 433
 434 GpStatus WINGDIPAPI GdipCreateBitmapFromScan0(INT width, INT height, INT stride,
 435     PixelFormat format, BYTE* scan0, GpBitmap** bitmap)
 436 {
 437     BITMAPFILEHEADER *bmfh;
 438     BITMAPINFOHEADER *bmih;
 439     BYTE *buff;
 440     INT datalen, size;
 441     IStream *stream;
 442
 443     TRACE("%d %d %d %d %p %p\n", width, height, stride, format, scan0, bitmap);
 444
 445     if(!bitmap || width <= 0 || height <= 0 || (scan0 && (stride % 4))){
 446         *bitmap = NULL;
 447         return InvalidParameter;
 448     }
 449
 450     if(scan0 && !stride)
 451         return InvalidParameter;
 452
 453     /* FIXME: windows allows negative stride (reads backwards from scan0) */
 454     if(stride < 0){
 455         FIXME("negative stride\n");
 456         return InvalidParameter;
 457     }
 458
 459     *bitmap = GdipAlloc(sizeof(GpBitmap));
 460     if(!*bitmap)    return OutOfMemory;
 461
 462     if(stride == 0){
 463         stride = width * (PIXELFORMATBPP(format) / 8);
 464         stride = (stride + 3) & ~3;
 465     }
 466
 467     datalen = abs(stride * height);
 468     size = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + datalen;
 469     buff = GdipAlloc(size);
 470     if(!buff){
 471         GdipFree(*bitmap);
 472         return OutOfMemory;
 473     }
 474
 475     bmfh = (BITMAPFILEHEADER*) buff;
 476     bmih = (BITMAPINFOHEADER*) (bmfh + 1);
 477
 478     bmfh->bfType    = (((WORD)'M') << 8) + (WORD)'B';
 479     bmfh->bfSize    = size;
 480     bmfh->bfOffBits = size - datalen;
 481
 482     bmih->biSize            = sizeof(BITMAPINFOHEADER);
 483     bmih->biWidth           = width;
 484     bmih->biHeight          = -height;
 485     /* FIXME: use the rest of the data from format */
 486     bmih->biBitCount        = PIXELFORMATBPP(format);
 487     bmih->biCompression     = BI_RGB;
 488     bmih->biSizeImage       = datalen;
 489
 490     if(scan0)
 491         memcpy(bmih + 1, scan0, datalen);
 492     else
 493         memset(bmih + 1, 0, datalen);
 494
 495     if(CreateStreamOnHGlobal(buff, TRUE, &stream) != S_OK){
 496         ERR("could not make stream\n");
 497         GdipFree(*bitmap);
 498         GdipFree(buff);
 499         return GenericError;
 500     }
 501
 502     if(OleLoadPicture(stream, 0, FALSE, &IID_IPicture,
 503         (LPVOID*) &((*bitmap)->image.picture)) != S_OK){
 504         TRACE("Could not load picture\n");
 505         IStream_Release(stream);
 506         GdipFree(*bitmap);
 507         GdipFree(buff);
 508         return GenericError;
 509     }
 510
 511     (*bitmap)->image.type = ImageTypeBitmap;
 512     (*bitmap)->image.flags = ImageFlagsNone;
 513     (*bitmap)->width = width;
 514     (*bitmap)->height = height;
 515     (*bitmap)->format = format;
 516
 517     return Ok;
 518 }
 519
 520 GpStatus WINGDIPAPI GdipCreateBitmapFromStream(IStream* stream,
 521     GpBitmap **bitmap)
 522 {
 523     GpStatus stat;
 524
 525     TRACE("%p %p\n", stream, bitmap);
 526
 527     stat = GdipLoadImageFromStream(stream, (GpImage**) bitmap);
 528
 529     if(stat != Ok)
 530         return stat;
 531
 532     if((*bitmap)->image.type != ImageTypeBitmap){
 533         IPicture_Release((*bitmap)->image.picture);
 534         GdipFree(bitmap);
 535         return GenericError; /* FIXME: what error to return? */
 536     }
 537
 538     return Ok;
 539 }
 540
 541 /* FIXME: no icm */
 542 GpStatus WINGDIPAPI GdipCreateBitmapFromStreamICM(IStream* stream,
 543     GpBitmap **bitmap)
 544 {
 545     TRACE("%p %p\n", stream, bitmap);
 546
 547     return GdipCreateBitmapFromStream(stream, bitmap);
 548 }
 549
 550 GpStatus WINGDIPAPI GdipDisposeImage(GpImage *image)
 551 {
 552     HDC hdc;
 553
 554     TRACE("%p\n", image);
 555
 556     if(!image)
 557         return InvalidParameter;
 558
 559     IPicture_get_CurDC(image->picture, &hdc);
 560     DeleteDC(hdc);
 561     IPicture_Release(image->picture);
 562     if (image->type == ImageTypeBitmap)
 563         GdipFree(((GpBitmap*)image)->bitmapbits);
 564     GdipFree(image);
 565
 566     return Ok;
 567 }
 568
 569 GpStatus WINGDIPAPI GdipFindFirstImageItem(GpImage *image, ImageItemData* item)
 570 {
 571     if(!image || !item)
 572         return InvalidParameter;
 573
 574     return NotImplemented;
 575 }
 576
 577 GpStatus WINGDIPAPI GdipGetImageBounds(GpImage *image, GpRectF *srcRect,
 578     GpUnit *srcUnit)
 579 {
 580     TRACE("%p %p %p\n", image, srcRect, srcUnit);
 581
 582     if(!image || !srcRect || !srcUnit)
 583         return InvalidParameter;
 584     if(image->type == ImageTypeMetafile){
 585         *srcRect = ((GpMetafile*)image)->bounds;
 586         *srcUnit = ((GpMetafile*)image)->unit;
 587     }
 588     else if(image->type == ImageTypeBitmap){
 589         srcRect->X = srcRect->Y = 0.0;
 590         srcRect->Width = (REAL) ((GpBitmap*)image)->width;
 591         srcRect->Height = (REAL) ((GpBitmap*)image)->height;
 592         *srcUnit = UnitPixel;
 593     }
 594     else{
 595         srcRect->X = srcRect->Y = 0.0;
 596         srcRect->Width = ipicture_pixel_width(image->picture);
 597         srcRect->Height = ipicture_pixel_height(image->picture);
 598         *srcUnit = UnitPixel;
 599     }
 600
 601     TRACE("returning (%f, %f) (%f, %f) unit type %d\n", srcRect->X, srcRect->Y,
 602           srcRect->Width, srcRect->Height, *srcUnit);
 603
 604     return Ok;
 605 }
 606
 607 GpStatus WINGDIPAPI GdipGetImageDimension(GpImage *image, REAL *width,
 608     REAL *height)
 609 {
 610     TRACE("%p %p %p\n", image, width, height);
 611
 612     if(!image || !height || !width)
 613         return InvalidParameter;
 614
 615     if(image->type == ImageTypeMetafile){
 616         HDC hdc = GetDC(0);
 617
 618         *height = convert_unit(hdc, ((GpMetafile*)image)->unit) *
 619                         ((GpMetafile*)image)->bounds.Height;
 620
 621         *width = convert_unit(hdc, ((GpMetafile*)image)->unit) *
 622                         ((GpMetafile*)image)->bounds.Width;
 623
 624         ReleaseDC(0, hdc);
 625     }
 626
 627     else if(image->type == ImageTypeBitmap){
 628         *height = ((GpBitmap*)image)->height;
 629         *width = ((GpBitmap*)image)->width;
 630     }
 631     else{
 632         *height = ipicture_pixel_height(image->picture);
 633         *width = ipicture_pixel_width(image->picture);
 634     }
 635
 636     TRACE("returning (%f, %f)\n", *height, *width);
 637     return Ok;
 638 }
 639
 640 GpStatus WINGDIPAPI GdipGetImageGraphicsContext(GpImage *image,
 641     GpGraphics **graphics)
 642 {
 643     HDC hdc;
 644
 645     TRACE("%p %p\n", image, graphics);
 646
 647     if(!image || !graphics)
 648         return InvalidParameter;
 649
 650     if(image->type != ImageTypeBitmap){
 651         FIXME("not implemented for image type %d\n", image->type);
 652         return NotImplemented;
 653     }
 654
 655     IPicture_get_CurDC(image->picture, &hdc);
 656
 657     if(!hdc){
 658         hdc = CreateCompatibleDC(0);
 659         IPicture_SelectPicture(image->picture, hdc, NULL, NULL);
 660     }
 661
 662     return GdipCreateFromHDC(hdc, graphics);
 663 }
 664
 665 GpStatus WINGDIPAPI GdipGetImageHeight(GpImage *image, UINT *height)
 666 {
 667     TRACE("%p %p\n", image, height);
 668
 669     if(!image || !height)
 670         return InvalidParameter;
 671
 672     if(image->type == ImageTypeMetafile){
 673         HDC hdc = GetDC(0);
 674
 675         *height = roundr(convert_unit(hdc, ((GpMetafile*)image)->unit) *
 676                         ((GpMetafile*)image)->bounds.Height);
 677
 678         ReleaseDC(0, hdc);
 679     }
 680     else if(image->type == ImageTypeBitmap)
 681         *height = ((GpBitmap*)image)->height;
 682     else
 683         *height = ipicture_pixel_height(image->picture);
 684
 685     TRACE("returning %d\n", *height);
 686
 687     return Ok;
 688 }
 689
 690 GpStatus WINGDIPAPI GdipGetImageHorizontalResolution(GpImage *image, REAL *res)
 691 {
 692     static int calls;
 693
 694     if(!image || !res)
 695         return InvalidParameter;
 696
 697     if(!(calls++))
 698         FIXME("not implemented\n");
 699
 700     return NotImplemented;
 701 }
 702
 703 /* FIXME: test this function for non-bitmap types */
 704 GpStatus WINGDIPAPI GdipGetImagePixelFormat(GpImage *image, PixelFormat *format)
 705 {
 706     TRACE("%p %p\n", image, format);
 707
 708     if(!image || !format)
 709         return InvalidParameter;
 710
 711     if(image->type != ImageTypeBitmap)
 712         *format = PixelFormat24bppRGB;
 713     else
 714         *format = ((GpBitmap*) image)->format;
 715
 716     return Ok;
 717 }
 718
 719 GpStatus WINGDIPAPI GdipGetImageRawFormat(GpImage *image, GUID *format)
 720 {
 721     static int calls;
 722
 723     if(!image || !format)
 724         return InvalidParameter;
 725
 726     if(!(calls++))
 727         FIXME("not implemented\n");
 728
 729     return NotImplemented;
 730 }
 731
 732 GpStatus WINGDIPAPI GdipGetImageType(GpImage *image, ImageType *type)
 733 {
 734     TRACE("%p %p\n", image, type);
 735
 736     if(!image || !type)
 737         return InvalidParameter;
 738
 739     *type = image->type;
 740
 741     return Ok;
 742 }
 743
 744 GpStatus WINGDIPAPI GdipGetImageVerticalResolution(GpImage *image, REAL *res)
 745 {
 746     static int calls;
 747
 748     if(!image || !res)
 749         return InvalidParameter;
 750
 751     if(!(calls++))
 752         FIXME("not implemented\n");
 753
 754     return NotImplemented;
 755 }
 756
 757 GpStatus WINGDIPAPI GdipGetImageWidth(GpImage *image, UINT *width)
 758 {
 759     TRACE("%p %p\n", image, width);
 760
 761     if(!image || !width)
 762         return InvalidParameter;
 763
 764     if(image->type == ImageTypeMetafile){
 765         HDC hdc = GetDC(0);
 766
 767         *width = roundr(convert_unit(hdc, ((GpMetafile*)image)->unit) *
 768                         ((GpMetafile*)image)->bounds.Width);
 769
 770         ReleaseDC(0, hdc);
 771     }
 772     else if(image->type == ImageTypeBitmap)
 773         *width = ((GpBitmap*)image)->width;
 774     else
 775         *width = ipicture_pixel_width(image->picture);
 776
 777     TRACE("returning %d\n", *width);
 778
 779     return Ok;
 780 }
 781
 782 GpStatus WINGDIPAPI GdipGetMetafileHeaderFromMetafile(GpMetafile * metafile,
 783     MetafileHeader * header)
 784 {
 785     static int calls;
 786
 787     if(!metafile || !header)
 788         return InvalidParameter;
 789
 790     if(!(calls++))
 791         FIXME("not implemented\n");
 792
 793     return Ok;
 794 }
 795
 796 GpStatus WINGDIPAPI GdipGetAllPropertyItems(GpImage *image, UINT size,
 797     UINT num, PropertyItem* items)
 798 {
 799     static int calls;
 800
 801     if(!(calls++))
 802         FIXME("not implemented\n");
 803
 804     return InvalidParameter;
 805 }
 806
 807 GpStatus WINGDIPAPI GdipGetPropertyCount(GpImage *image, UINT* num)
 808 {
 809     static int calls;
 810
 811     if(!(calls++))
 812         FIXME("not implemented\n");
 813
 814     return InvalidParameter;
 815 }
 816
 817 GpStatus WINGDIPAPI GdipGetPropertyIdList(GpImage *image, UINT num, PROPID* list)
 818 {
 819     static int calls;
 820
 821     if(!(calls++))
 822         FIXME("not implemented\n");
 823
 824     return InvalidParameter;
 825 }
 826
 827 GpStatus WINGDIPAPI GdipGetPropertyItem(GpImage *image, PROPID id, UINT size,
 828     PropertyItem* buffer)
 829 {
 830     static int calls;
 831
 832     if(!(calls++))
 833         FIXME("not implemented\n");
 834
 835     return InvalidParameter;
 836 }
 837
 838 GpStatus WINGDIPAPI GdipGetPropertyItemSize(GpImage *image, PROPID pid,
 839     UINT* size)
 840 {
 841     static int calls;
 842
 843     TRACE("%p %x %p\n", image, pid, size);
 844
 845     if(!size || !image)
 846         return InvalidParameter;
 847
 848     if(!(calls++))
 849         FIXME("not implemented\n");
 850
 851     return NotImplemented;
 852 }
 853
 854 GpStatus WINGDIPAPI GdipGetPropertySize(GpImage *image, UINT* size, UINT* num)
 855 {
 856     static int calls;
 857
 858     if(!(calls++))
 859         FIXME("not implemented\n");
 860
 861     return InvalidParameter;
 862 }
 863
 864 GpStatus WINGDIPAPI GdipImageGetFrameCount(GpImage *image,
 865     GDIPCONST GUID* dimensionID, UINT* count)
 866 {
 867     static int calls;
 868
 869     if(!image || !dimensionID || !count)
 870         return InvalidParameter;
 871
 872     if(!(calls++))
 873         FIXME("not implemented\n");
 874
 875     return NotImplemented;
 876 }
 877
 878 GpStatus WINGDIPAPI GdipImageGetFrameDimensionsCount(GpImage *image,
 879     UINT* count)
 880 {
 881     if(!image || !count)
 882         return InvalidParameter;
 883
 884     *count = 1;
 885
 886     FIXME("stub\n");
 887
 888     return Ok;
 889 }
 890
 891 GpStatus WINGDIPAPI GdipImageGetFrameDimensionsList(GpImage* image,
 892     GUID* dimensionIDs, UINT count)
 893 {
 894     static int calls;
 895
 896     if(!image || !dimensionIDs)
 897         return InvalidParameter;
 898
 899     if(!(calls++))
 900         FIXME("not implemented\n");
 901
 902     return Ok;
 903 }
 904
 905 GpStatus WINGDIPAPI GdipImageSelectActiveFrame(GpImage *image,
 906     GDIPCONST GUID* dimensionID, UINT frameidx)
 907 {
 908     static int calls;
 909
 910     if(!image || !dimensionID)
 911         return InvalidParameter;
 912
 913     if(!(calls++))
 914         FIXME("not implemented\n");
 915
 916     return Ok;
 917 }
 918
 919 GpStatus WINGDIPAPI GdipLoadImageFromFile(GDIPCONST WCHAR* filename,
 920                                           GpImage **image)
 921 {
 922     GpStatus stat;
 923     IStream *stream;
 924
 925     TRACE("(%s) %p\n", debugstr_w(filename), image);
 926
 927     if (!filename || !image)
 928         return InvalidParameter;
 929
 930     stat = GdipCreateStreamOnFile(filename, GENERIC_READ, &stream);
 931
 932     if (stat != Ok)
 933         return stat;
 934
 935     stat = GdipLoadImageFromStream(stream, image);
 936
 937     IStream_Release(stream);
 938
 939     return stat;
 940 }
 941
 942 /* FIXME: no icm handling */
 943 GpStatus WINGDIPAPI GdipLoadImageFromFileICM(GDIPCONST WCHAR* filename,GpImage **image)
 944 {
 945     TRACE("(%s) %p\n", debugstr_w(filename), image);
 946
 947     return GdipLoadImageFromFile(filename, image);
 948 }
 949
 950 GpStatus WINGDIPAPI GdipLoadImageFromStream(IStream* stream, GpImage **image)
 951 {
 952     IPicture *pic;
 953     short type;
 954
 955     TRACE("%p %p\n", stream, image);
 956
 957     if(!stream || !image)
 958         return InvalidParameter;
 959
 960     if(OleLoadPicture(stream, 0, FALSE, &IID_IPicture,
 961         (LPVOID*) &pic) != S_OK){
 962         TRACE("Could not load picture\n");
 963         return GenericError;
 964     }
 965
 966     IPicture_get_Type(pic, &type);
 967
 968     if(type == PICTYPE_BITMAP){
 969         BITMAPINFO bmi;
 970         BITMAPCOREHEADER* bmch;
 971         OLE_HANDLE hbm;
 972         HDC hdc;
 973
 974         *image = GdipAlloc(sizeof(GpBitmap));
 975         if(!*image) return OutOfMemory;
 976         (*image)->type = ImageTypeBitmap;
 977
 978         (*((GpBitmap**) image))->width = ipicture_pixel_width(pic);
 979         (*((GpBitmap**) image))->height = ipicture_pixel_height(pic);
 980
 981         /* get the pixel format */
 982         IPicture_get_Handle(pic, &hbm);
 983         IPicture_get_CurDC(pic, &hdc);
 984
 985         ZeroMemory(&bmi, sizeof(bmi));
 986         bmch = (BITMAPCOREHEADER*) (&bmi.bmiHeader);
 987         bmch->bcSize = sizeof(BITMAPCOREHEADER);
 988
 989         if(!hdc){
 990             HBITMAP old;
 991             hdc = CreateCompatibleDC(0);
 992             old = SelectObject(hdc, (HBITMAP)hbm);
 993             GetDIBits(hdc, (HBITMAP)hbm, 0, 0, NULL, &bmi, DIB_RGB_COLORS);
 994             SelectObject(hdc, old);
 995             DeleteDC(hdc);
 996         }
 997         else
 998             GetDIBits(hdc, (HBITMAP)hbm, 0, 0, NULL, &bmi, DIB_RGB_COLORS);
 999
1000         (*((GpBitmap**) image))->format = (bmch->bcBitCount << 8) | PixelFormatGDI;
1001     }
1002     else if(type == PICTYPE_METAFILE || type == PICTYPE_ENHMETAFILE){
1003         /* FIXME: missing initialization code */
1004         *image = GdipAlloc(sizeof(GpMetafile));
1005         if(!*image) return OutOfMemory;
1006         (*image)->type = ImageTypeMetafile;
1007     }
1008     else{
1009         *image = GdipAlloc(sizeof(GpImage));
1010         if(!*image) return OutOfMemory;
1011         (*image)->type = ImageTypeUnknown;
1012     }
1013
1014     (*image)->picture = pic;
1015     (*image)->flags   = ImageFlagsNone;
1016
1017     return Ok;
1018 }
1019
1020 /* FIXME: no ICM */
1021 GpStatus WINGDIPAPI GdipLoadImageFromStreamICM(IStream* stream, GpImage **image)
1022 {
1023     TRACE("%p %p\n", stream, image);
1024
1025     return GdipLoadImageFromStream(stream, image);
1026 }
1027
1028 GpStatus WINGDIPAPI GdipRemovePropertyItem(GpImage *image, PROPID propId)
1029 {
1030     static int calls;
1031
1032     if(!image)
1033         return InvalidParameter;
1034
1035     if(!(calls++))
1036         FIXME("not implemented\n");
1037
1038     return NotImplemented;
1039 }
1040
1041 GpStatus WINGDIPAPI GdipSetPropertyItem(GpImage *image, GDIPCONST PropertyItem* item)
1042 {
1043     static int calls;
1044
1045     if(!(calls++))
1046         FIXME("not implemented\n");
1047
1048     return NotImplemented;
1049 }
1050
1051 GpStatus WINGDIPAPI GdipSaveImageToFile(GpImage *image, GDIPCONST WCHAR* filename,
1052                                         GDIPCONST CLSID *clsidEncoder,
1053                                         GDIPCONST EncoderParameters *encoderParams)
1054 {
1055     GpStatus stat;
1056     IStream *stream;
1057
1058     TRACE("%p (%s) %p %p\n", image, debugstr_w(filename), clsidEncoder, encoderParams);
1059
1060     if (!image || !filename|| !clsidEncoder)
1061         return InvalidParameter;
1062
1063     if (!(image->picture))
1064         return InvalidParameter;
1065
1066     stat = GdipCreateStreamOnFile(filename, GENERIC_WRITE, &stream);
1067     if (stat != Ok)
1068         return GenericError;
1069
1070     stat = GdipSaveImageToStream(image, stream, clsidEncoder, encoderParams);
1071
1072     IStream_Release(stream);
1073     return stat;
1074 }
1075
1076 /*************************************************************************
1077  * Encoding functions -
1078  *   These functions encode an image in different image file formats.
1079  */
1080 #define BITMAP_FORMAT_BMP   0x4d42 /* "BM" */
1081 #define BITMAP_FORMAT_JPEG  0xd8ff
1082 #define BITMAP_FORMAT_GIF   0x4947
1083 #define BITMAP_FORMAT_PNG   0x5089
1084 #define BITMAP_FORMAT_APM   0xcdd7
1085
1086 static GpStatus encode_image_BMP(LPVOID bitmap_bits, LPBITMAPINFO bitmap_info,
1087                                  void **output, unsigned int *output_size)
1088 {
1089     int num_palette_entries;
1090     BITMAPFILEHEADER *bmp_file_hdr;
1091     BITMAPINFO *bmp_info_hdr;
1092
1093     if (bitmap_info->bmiHeader.biClrUsed) {
1094         num_palette_entries = bitmap_info->bmiHeader.biClrUsed;
1095         if (num_palette_entries > 256) num_palette_entries = 256;
1096     } else {
1097         if (bitmap_info->bmiHeader.biBitCount <= 8)
1098             num_palette_entries = 1 << bitmap_info->bmiHeader.biBitCount;
1099         else
1100             num_palette_entries = 0;
1101     }
1102
1103     *output_size =
1104         sizeof(BITMAPFILEHEADER) +
1105         sizeof(BITMAPINFOHEADER) +
1106         num_palette_entries * sizeof(RGBQUAD) +
1107         bitmap_info->bmiHeader.biSizeImage;
1108
1109     *output = GdipAlloc(*output_size);
1110
1111     bmp_file_hdr = (BITMAPFILEHEADER*) *output;
1112     bmp_file_hdr->bfType = BITMAP_FORMAT_BMP;
1113     bmp_file_hdr->bfSize = *output_size;
1114     bmp_file_hdr->bfOffBits =
1115         sizeof(BITMAPFILEHEADER) +
1116         sizeof(BITMAPINFOHEADER) +
1117         num_palette_entries * sizeof (RGBQUAD);
1118
1119     bmp_info_hdr = (BITMAPINFO*) ((unsigned char*)(*output) + sizeof(BITMAPFILEHEADER));
1120     memcpy(bmp_info_hdr, bitmap_info, sizeof(BITMAPINFOHEADER) + num_palette_entries * sizeof(RGBQUAD));
1121     memcpy((unsigned char *)(*output) +
1122            sizeof(BITMAPFILEHEADER) +
1123            sizeof(BITMAPINFOHEADER) +
1124            num_palette_entries * sizeof(RGBQUAD),
1125            bitmap_bits, bitmap_info->bmiHeader.biSizeImage);
1126
1127     return Ok;
1128 }
1129
1130 typedef GpStatus encode_image_func(LPVOID bitmap_bits, LPBITMAPINFO bitmap_info,
1131                                    void **output, unsigned int *output_size);
1132
1133 typedef enum {
1134     BMP,
1135     NUM_ENCODERS_SUPPORTED
1136 } ImageFormat;
1137
1138 static const ImageCodecInfo codecs[NUM_ENCODERS_SUPPORTED];
1139 static encode_image_func *const encode_image_funcs[NUM_ENCODERS_SUPPORTED] = {
1140     encode_image_BMP,
1141 };
1142
1143 /*****************************************************************************
1144  * GdipSaveImageToStream [GDIPLUS.@]
1145  */
1146 GpStatus WINGDIPAPI GdipSaveImageToStream(GpImage *image, IStream* stream,
1147     GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
1148 {
1149     GpStatus stat;
1150     HRESULT hr;
1151     short type;
1152     HBITMAP hbmp;
1153     HBITMAP old_hbmp;
1154     HDC hdc;
1155     int bm_is_selected;
1156     BITMAPINFO bmp_info;
1157     LPVOID bmp_bits;
1158     encode_image_func* encode_image;
1159     LPVOID output;
1160     unsigned int output_size;
1161     unsigned int dummy;
1162     int i;
1163
1164     old_hbmp = 0;
1165     output = NULL;
1166     output_size = 0;
1167
1168     TRACE("%p %p %p %p\n", image, stream, clsid, params);
1169
1170     if(!image || !stream)
1171         return InvalidParameter;
1172
1173     if (!image->picture)
1174         return GenericError;
1175
1176     hr = IPicture_get_Type(image->picture, &type);
1177     if (FAILED(hr) || type != PICTYPE_BITMAP)
1178         return GenericError;
1179
1180     /* select correct encoder */
1181     encode_image = NULL;
1182     for (i = 0; i < NUM_ENCODERS_SUPPORTED; i++) {
1183         if (IsEqualCLSID(clsid, &codecs[i].Clsid))
1184             encode_image = encode_image_funcs[i];
1185     }
1186     if (encode_image == NULL)
1187         return UnknownImageFormat;
1188
1189     /* extract underlying hbitmap representation from the IPicture */
1190     hr = IPicture_get_Handle(image->picture, (OLE_HANDLE*)&hbmp);
1191     if (FAILED(hr) || !hbmp)
1192         return GenericError;
1193     hr = IPicture_get_CurDC(image->picture, &hdc);
1194     if (FAILED(hr))
1195         return GenericError;
1196     bm_is_selected = (hdc != 0);
1197     if (!bm_is_selected) {
1198         hdc = CreateCompatibleDC(0);
1199         old_hbmp = SelectObject(hdc, hbmp);
1200     }
1201
1202     /* get bits from HBITMAP */
1203     bmp_info.bmiHeader.biSize = sizeof(bmp_info.bmiHeader);
1204     bmp_info.bmiHeader.biBitCount = 0;
1205     GetDIBits(hdc, hbmp, 0, 0, NULL, &bmp_info, DIB_RGB_COLORS);
1206
1207     bmp_bits = GdipAlloc(bmp_info.bmiHeader.biSizeImage);
1208
1209     if (bmp_bits)
1210         GetDIBits(hdc, hbmp, 0, abs(bmp_info.bmiHeader.biHeight), bmp_bits, &bmp_info, DIB_RGB_COLORS);
1211
1212     if (!bm_is_selected) {
1213         SelectObject(hdc, old_hbmp);
1214         DeleteDC(hdc);
1215     }
1216
1217     if (!bmp_bits)
1218         return OutOfMemory;
1219
1220     stat = encode_image(bmp_bits, &bmp_info, &output, &output_size);
1221     if (stat == Ok)
1222         IStream_Write(stream, output, output_size, &dummy);
1223
1224     GdipFree(output);
1225     GdipFree(bmp_bits);
1226
1227     return stat;
1228 }
1229
1230 /*****************************************************************************
1231  * GdipSetImagePalette [GDIPLUS.@]
1232  */
1233 GpStatus WINGDIPAPI GdipSetImagePalette(GpImage *image,
1234     GDIPCONST ColorPalette *palette)
1235 {
1236     static int calls;
1237
1238     if(!image || !palette)
1239         return InvalidParameter;
1240
1241     if(!(calls++))
1242         FIXME("not implemented\n");
1243
1244     return NotImplemented;
1245 }
1246
1247 /*************************************************************************
1248  * Encoders -
1249  *   Structures that represent which formats we support for encoding.
1250  */
1251
1252 /* ImageCodecInfo creation routines taken from libgdiplus */
1253 static const WCHAR bmp_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'B', 'M', 'P', 0}; /* Built-in BMP */
1254 static const WCHAR bmp_extension[] = {'*','.','B', 'M', 'P',';', '*','.', 'D','I', 'B',';', '*','.', 'R', 'L', 'E',0}; /* *.BMP;*.DIB;*.RLE */
1255 static const WCHAR bmp_mimetype[] = {'i', 'm', 'a','g', 'e', '/', 'b', 'm', 'p', 0}; /* image/bmp */
1256 static const WCHAR bmp_format[] = {'B', 'M', 'P', 0}; /* BMP */
1257 static const BYTE bmp_sig_pattern[] = { 0x42, 0x4D };
1258 static const BYTE bmp_sig_mask[] = { 0xFF, 0xFF };
1259
1260 static const ImageCodecInfo codecs[NUM_ENCODERS_SUPPORTED] =
1261     {
1262         { /* BMP */
1263             /* Clsid */              { 0x557cf400, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
1264             /* FormatID */           { 0xb96b3cabU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
1265             /* CodecName */          bmp_codecname,
1266             /* DllName */            NULL,
1267             /* FormatDescription */  bmp_format,
1268             /* FilenameExtension */  bmp_extension,
1269             /* MimeType */           bmp_mimetype,
1270             /* Flags */              ImageCodecFlagsEncoder | ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
1271             /* Version */            1,
1272             /* SigCount */           1,
1273             /* SigSize */            2,
1274             /* SigPattern */         bmp_sig_pattern,
1275             /* SigMask */            bmp_sig_mask,
1276         },
1277     };
1278
1279 /*****************************************************************************
1280  * GdipGetImageDecodersSize [GDIPLUS.@]
1281  */
1282 GpStatus WINGDIPAPI GdipGetImageDecodersSize(UINT *numDecoders, UINT *size)
1283 {
1284     FIXME("%p %p stub!\n", numDecoders, size);
1285
1286     if (!numDecoders || !size)
1287         return InvalidParameter;
1288
1289     *numDecoders = 0;
1290     *size = 0;
1291
1292     return Ok;
1293 }
1294
1295 /*****************************************************************************
1296  * GdipGetImageDecoders [GDIPLUS.@]
1297  */
1298 GpStatus WINGDIPAPI GdipGetImageDecoders(UINT numDecoders, UINT size, ImageCodecInfo *decoders)
1299 {
1300     FIXME("%u %u %p stub!\n", numDecoders, size, decoders);
1301
1302     if (!decoders)
1303         return GenericError;
1304
1305     return NotImplemented;
1306 }
1307
1308 /*****************************************************************************
1309  * GdipGetImageEncodersSize [GDIPLUS.@]
1310  */
1311 GpStatus WINGDIPAPI GdipGetImageEncodersSize(UINT *numEncoders, UINT *size)
1312 {
1313     TRACE("%p %p\n", numEncoders, size);
1314
1315     if (!numEncoders || !size)
1316         return InvalidParameter;
1317
1318     *numEncoders = NUM_ENCODERS_SUPPORTED;
1319     *size = sizeof (codecs);
1320
1321     return Ok;
1322 }
1323
1324 /*****************************************************************************
1325  * GdipGetImageEncoders [GDIPLUS.@]
1326  */
1327 GpStatus WINGDIPAPI GdipGetImageEncoders(UINT numEncoders, UINT size, ImageCodecInfo *encoders)
1328 {
1329     TRACE("%u %u %p\n", numEncoders, size, encoders);
1330
1331     if (!encoders ||
1332         (numEncoders != NUM_ENCODERS_SUPPORTED) ||
1333         (size != sizeof (codecs)))
1334         return GenericError;
1335
1336     memcpy(encoders, codecs, sizeof (codecs));
1337
1338     return Ok;
1339 }
1340
1341 /*****************************************************************************
1342  * GdipCreateBitmapFromHBITMAP [GDIPLUS.@]
1343  */
1344 GpStatus WINGDIPAPI GdipCreateBitmapFromHBITMAP(HBITMAP hbm, HPALETTE hpal, GpBitmap** bitmap)
1345 {
1346     BITMAP bm;
1347     GpStatus retval;
1348     PixelFormat format;
1349
1350     TRACE("%p %p %p\n", hbm, hpal, bitmap);
1351
1352     if(!hbm || !bitmap)
1353         return InvalidParameter;
1354
1355     /* TODO: Support for device-dependent bitmaps */
1356     if(hpal){
1357         FIXME("no support for device-dependent bitmaps\n");
1358         return NotImplemented;
1359     }
1360
1361     if (GetObjectA(hbm, sizeof(bm), &bm) != sizeof(bm))
1362             return InvalidParameter;
1363
1364     /* TODO: Figure out the correct format for 16, 32, 64 bpp */
1365     switch(bm.bmBitsPixel) {
1366         case 1:
1367             format = PixelFormat1bppIndexed;
1368             break;
1369         case 4:
1370             format = PixelFormat4bppIndexed;
1371             break;
1372         case 8:
1373             format = PixelFormat8bppIndexed;
1374             break;
1375         case 24:
1376             format = PixelFormat24bppRGB;
1377             break;
1378         case 48:
1379             format = PixelFormat48bppRGB;
1380             break;
1381         default:
1382             FIXME("don't know how to handle %d bpp\n", bm.bmBitsPixel);
1383             return InvalidParameter;
1384     }
1385
1386     retval = GdipCreateBitmapFromScan0(bm.bmWidth, bm.bmHeight, bm.bmWidthBytes,
1387         format, bm.bmBits, bitmap);
1388
1389     return retval;
1390 }
1391
1392 /*****************************************************************************
1393  * GdipSetEffectParameters [GDIPLUS.@]
1394  */
1395 GpStatus WINGDIPAPI GdipSetEffectParameters(CGpEffect *effect,
1396     const VOID *params, const UINT size)
1397 {
1398     static int calls;
1399
1400     if(!(calls++))
1401         FIXME("not implemented\n");
1402
1403     return NotImplemented;
1404 }
1405
1406 /*****************************************************************************
1407  * GdipGetImageFlags [GDIPLUS.@]
1408  */
1409 GpStatus WINGDIPAPI GdipGetImageFlags(GpImage *image, UINT *flags)
1410 {
1411     TRACE("%p %p\n", image, flags);
1412
1413     if(!image || !flags)
1414         return InvalidParameter;
1415
1416     *flags = image->flags;
1417
1418     return Ok;
1419 }
1420
1421 GpStatus WINGDIPAPI GdipTestControl(GpTestControlEnum control, void *param)
1422 {
1423     TRACE("(%d, %p)\n", control, param);
1424
1425     switch(control){
1426         case TestControlForceBilinear:
1427             if(param)
1428                 FIXME("TestControlForceBilinear not handled\n");
1429             break;
1430         case TestControlNoICM:
1431             if(param)
1432                 FIXME("TestControlNoICM not handled\n");
1433             break;
1434         case TestControlGetBuildNumber:
1435             *((DWORD*)param) = 3102;
1436             break;
1437     }
1438
1439     return Ok;
1440 }