git.oblomov.eu Git - wine/blob - 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 #define NONAMELESSUNION
  22
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "winuser.h"
  26 #include "wingdi.h"
  27
  28 #define COBJMACROS
  29 #include "objbase.h"
  30 #include "olectl.h"
  31 #include "ole2.h"
  32
  33 #include "initguid.h"
  34 #include "wincodec.h"
  35 #include "gdiplus.h"
  36 #include "gdiplus_private.h"
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(gdiplus);
  40
  41 #define PIXELFORMATBPP(x) ((x) ? ((x) >> 8) & 255 : 24)
  42
  43 static INT ipicture_pixel_height(IPicture *pic)
  44 {
  45     HDC hdcref;
  46     OLE_YSIZE_HIMETRIC y;
  47
  48     IPicture_get_Height(pic, &y);
  49
  50     hdcref = GetDC(0);
  51
  52     y = MulDiv(y, GetDeviceCaps(hdcref, LOGPIXELSY), INCH_HIMETRIC);
  53     ReleaseDC(0, hdcref);
  54
  55     return y;
  56 }
  57
  58 static INT ipicture_pixel_width(IPicture *pic)
  59 {
  60     HDC hdcref;
  61     OLE_XSIZE_HIMETRIC x;
  62
  63     IPicture_get_Width(pic, &x);
  64
  65     hdcref = GetDC(0);
  66
  67     x = MulDiv(x, GetDeviceCaps(hdcref, LOGPIXELSX), INCH_HIMETRIC);
  68
  69     ReleaseDC(0, hdcref);
  70
  71     return x;
  72 }
  73
  74 GpStatus WINGDIPAPI GdipBitmapApplyEffect(GpBitmap* bitmap, CGpEffect* effect,
  75     RECT* roi, BOOL useAuxData, VOID** auxData, INT* auxDataSize)
  76 {
  77     FIXME("(%p %p %p %d %p %p): stub\n", bitmap, effect, roi, useAuxData, auxData, auxDataSize);
  78     /*
  79      * Note: According to Jose Roca's GDI+ docs, this function is not
  80      * implemented in Windows's GDI+.
  81      */
  82     return NotImplemented;
  83 }
  84
  85 GpStatus WINGDIPAPI GdipBitmapCreateApplyEffect(GpBitmap** inputBitmaps,
  86     INT numInputs, CGpEffect* effect, RECT* roi, RECT* outputRect,
  87     GpBitmap** outputBitmap, BOOL useAuxData, VOID** auxData, INT* auxDataSize)
  88 {
  89     FIXME("(%p %d %p %p %p %p %d %p %p): stub\n", inputBitmaps, numInputs, effect, roi, outputRect, outputBitmap, useAuxData, auxData, auxDataSize);
  90     /*
  91      * Note: According to Jose Roca's GDI+ docs, this function is not
  92      * implemented in Windows's GDI+.
  93      */
  94     return NotImplemented;
  95 }
  96
  97 static inline void getpixel_1bppIndexed(BYTE *index, const BYTE *row, UINT x)
  98 {
  99     *index = (row[x/8]>>(7-x%8)) & 1;
 100 }
 101
 102 static inline void getpixel_4bppIndexed(BYTE *index, const BYTE *row, UINT x)
 103 {
 104     if (x & 1)
 105         *index = row[x/2]&0xf;
 106     else
 107         *index = row[x/2]>>4;
 108 }
 109
 110 static inline void getpixel_8bppIndexed(BYTE *index, const BYTE *row, UINT x)
 111 {
 112     *index = row[x];
 113 }
 114
 115 static inline void getpixel_16bppGrayScale(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
 116     const BYTE *row, UINT x)
 117 {
 118     *r = *g = *b = row[x*2+1];
 119     *a = 255;
 120 }
 121
 122 static inline void getpixel_16bppRGB555(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
 123     const BYTE *row, UINT x)
 124 {
 125     WORD pixel = *((const WORD*)(row)+x);
 126     *r = (pixel>>7&0xf8)|(pixel>>12&0x7);
 127     *g = (pixel>>2&0xf8)|(pixel>>6&0x7);
 128     *b = (pixel<<3&0xf8)|(pixel>>2&0x7);
 129     *a = 255;
 130 }
 131
 132 static inline void getpixel_16bppRGB565(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
 133     const BYTE *row, UINT x)
 134 {
 135     WORD pixel = *((const WORD*)(row)+x);
 136     *r = (pixel>>8&0xf8)|(pixel>>13&0x7);
 137     *g = (pixel>>3&0xfc)|(pixel>>9&0x3);
 138     *b = (pixel<<3&0xf8)|(pixel>>2&0x7);
 139     *a = 255;
 140 }
 141
 142 static inline void getpixel_16bppARGB1555(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
 143     const BYTE *row, UINT x)
 144 {
 145     WORD pixel = *((const WORD*)(row)+x);
 146     *r = (pixel>>7&0xf8)|(pixel>>12&0x7);
 147     *g = (pixel>>2&0xf8)|(pixel>>6&0x7);
 148     *b = (pixel<<3&0xf8)|(pixel>>2&0x7);
 149     if ((pixel&0x8000) == 0x8000)
 150         *a = 255;
 151     else
 152         *a = 0;
 153 }
 154
 155 static inline void getpixel_24bppRGB(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
 156     const BYTE *row, UINT x)
 157 {
 158     *r = row[x*3+2];
 159     *g = row[x*3+1];
 160     *b = row[x*3];
 161     *a = 255;
 162 }
 163
 164 static inline void getpixel_32bppRGB(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
 165     const BYTE *row, UINT x)
 166 {
 167     *r = row[x*4+2];
 168     *g = row[x*4+1];
 169     *b = row[x*4];
 170     *a = 255;
 171 }
 172
 173 static inline void getpixel_32bppARGB(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
 174     const BYTE *row, UINT x)
 175 {
 176     *r = row[x*4+2];
 177     *g = row[x*4+1];
 178     *b = row[x*4];
 179     *a = row[x*4+3];
 180 }
 181
 182 static inline void getpixel_32bppPARGB(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
 183     const BYTE *row, UINT x)
 184 {
 185     *a = row[x*4+3];
 186     if (*a == 0)
 187         *r = *g = *b = 0;
 188     else
 189     {
 190         *r = row[x*4+2] * 255 / *a;
 191         *g = row[x*4+1] * 255 / *a;
 192         *b = row[x*4] * 255 / *a;
 193     }
 194 }
 195
 196 static inline void getpixel_48bppRGB(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
 197     const BYTE *row, UINT x)
 198 {
 199     *r = row[x*6+5];
 200     *g = row[x*6+3];
 201     *b = row[x*6+1];
 202     *a = 255;
 203 }
 204
 205 static inline void getpixel_64bppARGB(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
 206     const BYTE *row, UINT x)
 207 {
 208     *r = row[x*8+5];
 209     *g = row[x*8+3];
 210     *b = row[x*8+1];
 211     *a = row[x*8+7];
 212 }
 213
 214 static inline void getpixel_64bppPARGB(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
 215     const BYTE *row, UINT x)
 216 {
 217     *a = row[x*8+7];
 218     if (*a == 0)
 219         *r = *g = *b = 0;
 220     else
 221     {
 222         *r = row[x*8+5] * 255 / *a;
 223         *g = row[x*8+3] * 255 / *a;
 224         *b = row[x*8+1] * 255 / *a;
 225     }
 226 }
 227
 228 GpStatus WINGDIPAPI GdipBitmapGetPixel(GpBitmap* bitmap, INT x, INT y,
 229     ARGB *color)
 230 {
 231     BYTE r, g, b, a;
 232     BYTE index;
 233     BYTE *row;
 234     TRACE("%p %d %d %p\n", bitmap, x, y, color);
 235
 236     if(!bitmap || !color ||
 237        x < 0 || y < 0 || x >= bitmap->width || y >= bitmap->height)
 238         return InvalidParameter;
 239
 240     row = bitmap->bits+bitmap->stride*y;
 241
 242     switch (bitmap->format)
 243     {
 244         case PixelFormat1bppIndexed:
 245             getpixel_1bppIndexed(&index,row,x);
 246             break;
 247         case PixelFormat4bppIndexed:
 248             getpixel_4bppIndexed(&index,row,x);
 249             break;
 250         case PixelFormat8bppIndexed:
 251             getpixel_8bppIndexed(&index,row,x);
 252             break;
 253         case PixelFormat16bppGrayScale:
 254             getpixel_16bppGrayScale(&r,&g,&b,&a,row,x);
 255             break;
 256         case PixelFormat16bppRGB555:
 257             getpixel_16bppRGB555(&r,&g,&b,&a,row,x);
 258             break;
 259         case PixelFormat16bppRGB565:
 260             getpixel_16bppRGB565(&r,&g,&b,&a,row,x);
 261             break;
 262         case PixelFormat16bppARGB1555:
 263             getpixel_16bppARGB1555(&r,&g,&b,&a,row,x);
 264             break;
 265         case PixelFormat24bppRGB:
 266             getpixel_24bppRGB(&r,&g,&b,&a,row,x);
 267             break;
 268         case PixelFormat32bppRGB:
 269             getpixel_32bppRGB(&r,&g,&b,&a,row,x);
 270             break;
 271         case PixelFormat32bppARGB:
 272             getpixel_32bppARGB(&r,&g,&b,&a,row,x);
 273             break;
 274         case PixelFormat32bppPARGB:
 275             getpixel_32bppPARGB(&r,&g,&b,&a,row,x);
 276             break;
 277         case PixelFormat48bppRGB:
 278             getpixel_48bppRGB(&r,&g,&b,&a,row,x);
 279             break;
 280         case PixelFormat64bppARGB:
 281             getpixel_64bppARGB(&r,&g,&b,&a,row,x);
 282             break;
 283         case PixelFormat64bppPARGB:
 284             getpixel_64bppPARGB(&r,&g,&b,&a,row,x);
 285             break;
 286         default:
 287             FIXME("not implemented for format 0x%x\n", bitmap->format);
 288             return NotImplemented;
 289     }
 290
 291     if (bitmap->format & PixelFormatIndexed)
 292         *color = bitmap->image.palette_entries[index];
 293     else
 294         *color = a<<24|r<<16|g<<8|b;
 295
 296     return Ok;
 297 }
 298
 299 static inline UINT get_palette_index(BYTE r, BYTE g, BYTE b, BYTE a, GpBitmap* bitmap) {
 300     BYTE index = 0;
 301     int best_distance = 0x7fff;
 302     int distance;
 303     int i;
 304     /* This algorithm scans entire palette,
 305        computes difference from desired color (all color components have equal weight)
 306        and returns the index of color with least difference.
 307
 308        Note: Maybe it could be replaced with a better algorithm for better image quality
 309        and performance, though better algorithm would probably need some pre-built lookup
 310        tables and thus may actually be slower if this method is called only few times per
 311        every image.
 312     */
 313     for(i=0;i<bitmap->image.palette_size;i++) {
 314         ARGB color=bitmap->image.palette_entries[i];
 315         distance=abs(b-(color & 0xff)) + abs(g-(color>>8 & 0xff)) + abs(r-(color>>16 & 0xff)) + abs(a-(color>>24 & 0xff));
 316         if (distance<best_distance) {
 317             best_distance=distance;
 318             index=i;
 319         }
 320     }
 321     return index;
 322 }
 323
 324 static inline void setpixel_8bppIndexed(BYTE r, BYTE g, BYTE b, BYTE a,
 325     BYTE *row, UINT x, GpBitmap* bitmap)
 326 {
 327      BYTE index = get_palette_index(r,g,b,a,bitmap);
 328      row[x]=index;
 329 }
 330
 331 static inline void setpixel_1bppIndexed(BYTE r, BYTE g, BYTE b, BYTE a,
 332     BYTE *row, UINT x, GpBitmap* bitmap)
 333 {
 334     row[x/8]  = (row[x/8] & ~(1<<(7-x%8))) | (get_palette_index(r,g,b,a,bitmap)<<(7-x%8));
 335 }
 336
 337 static inline void setpixel_4bppIndexed(BYTE r, BYTE g, BYTE b, BYTE a,
 338     BYTE *row, UINT x, GpBitmap* bitmap)
 339 {
 340     if (x & 1)
 341         row[x/2] = (row[x/2] & 0xf0) | get_palette_index(r,g,b,a,bitmap);
 342     else
 343         row[x/2] = (row[x/2] & 0x0f) | get_palette_index(r,g,b,a,bitmap)<<4;
 344 }
 345
 346 static inline void setpixel_16bppGrayScale(BYTE r, BYTE g, BYTE b, BYTE a,
 347     BYTE *row, UINT x)
 348 {
 349     *((WORD*)(row)+x) = (r+g+b)*85;
 350 }
 351
 352 static inline void setpixel_16bppRGB555(BYTE r, BYTE g, BYTE b, BYTE a,
 353     BYTE *row, UINT x)
 354 {
 355     *((WORD*)(row)+x) = (r<<7&0x7c00)|
 356                         (g<<2&0x03e0)|
 357                         (b>>3&0x001f);
 358 }
 359
 360 static inline void setpixel_16bppRGB565(BYTE r, BYTE g, BYTE b, BYTE a,
 361     BYTE *row, UINT x)
 362 {
 363     *((WORD*)(row)+x) = (r<<8&0xf800)|
 364                          (g<<3&0x07e0)|
 365                          (b>>3&0x001f);
 366 }
 367
 368 static inline void setpixel_16bppARGB1555(BYTE r, BYTE g, BYTE b, BYTE a,
 369     BYTE *row, UINT x)
 370 {
 371     *((WORD*)(row)+x) = (a<<8&0x8000)|
 372                         (r<<7&0x7c00)|
 373                         (g<<2&0x03e0)|
 374                         (b>>3&0x001f);
 375 }
 376
 377 static inline void setpixel_24bppRGB(BYTE r, BYTE g, BYTE b, BYTE a,
 378     BYTE *row, UINT x)
 379 {
 380     row[x*3+2] = r;
 381     row[x*3+1] = g;
 382     row[x*3] = b;
 383 }
 384
 385 static inline void setpixel_32bppRGB(BYTE r, BYTE g, BYTE b, BYTE a,
 386     BYTE *row, UINT x)
 387 {
 388     *((DWORD*)(row)+x) = (r<<16)|(g<<8)|b;
 389 }
 390
 391 static inline void setpixel_32bppARGB(BYTE r, BYTE g, BYTE b, BYTE a,
 392     BYTE *row, UINT x)
 393 {
 394     *((DWORD*)(row)+x) = (a<<24)|(r<<16)|(g<<8)|b;
 395 }
 396
 397 static inline void setpixel_32bppPARGB(BYTE r, BYTE g, BYTE b, BYTE a,
 398     BYTE *row, UINT x)
 399 {
 400     r = r * a / 255;
 401     g = g * a / 255;
 402     b = b * a / 255;
 403     *((DWORD*)(row)+x) = (a<<24)|(r<<16)|(g<<8)|b;
 404 }
 405
 406 static inline void setpixel_48bppRGB(BYTE r, BYTE g, BYTE b, BYTE a,
 407     BYTE *row, UINT x)
 408 {
 409     row[x*6+5] = row[x*6+4] = r;
 410     row[x*6+3] = row[x*6+2] = g;
 411     row[x*6+1] = row[x*6] = b;
 412 }
 413
 414 static inline void setpixel_64bppARGB(BYTE r, BYTE g, BYTE b, BYTE a,
 415     BYTE *row, UINT x)
 416 {
 417     UINT64 a64=a, r64=r, g64=g, b64=b;
 418     *((UINT64*)(row)+x) = (a64<<56)|(a64<<48)|(r64<<40)|(r64<<32)|(g64<<24)|(g64<<16)|(b64<<8)|b64;
 419 }
 420
 421 static inline void setpixel_64bppPARGB(BYTE r, BYTE g, BYTE b, BYTE a,
 422     BYTE *row, UINT x)
 423 {
 424     UINT64 a64, r64, g64, b64;
 425     a64 = a * 257;
 426     r64 = r * a / 255;
 427     g64 = g * a / 255;
 428     b64 = b * a / 255;
 429     *((UINT64*)(row)+x) = (a64<<48)|(r64<<32)|(g64<<16)|b64;
 430 }
 431
 432 GpStatus WINGDIPAPI GdipBitmapSetPixel(GpBitmap* bitmap, INT x, INT y,
 433     ARGB color)
 434 {
 435     BYTE a, r, g, b;
 436     BYTE *row;
 437     TRACE("bitmap:%p, x:%d, y:%d, color:%08x\n", bitmap, x, y, color);
 438
 439     if(!bitmap || x < 0 || y < 0 || x >= bitmap->width || y >= bitmap->height)
 440         return InvalidParameter;
 441
 442     a = color>>24;
 443     r = color>>16;
 444     g = color>>8;
 445     b = color;
 446
 447     row = bitmap->bits + bitmap->stride * y;
 448
 449     switch (bitmap->format)
 450     {
 451         case PixelFormat16bppGrayScale:
 452             setpixel_16bppGrayScale(r,g,b,a,row,x);
 453             break;
 454         case PixelFormat16bppRGB555:
 455             setpixel_16bppRGB555(r,g,b,a,row,x);
 456             break;
 457         case PixelFormat16bppRGB565:
 458             setpixel_16bppRGB565(r,g,b,a,row,x);
 459             break;
 460         case PixelFormat16bppARGB1555:
 461             setpixel_16bppARGB1555(r,g,b,a,row,x);
 462             break;
 463         case PixelFormat24bppRGB:
 464             setpixel_24bppRGB(r,g,b,a,row,x);
 465             break;
 466         case PixelFormat32bppRGB:
 467             setpixel_32bppRGB(r,g,b,a,row,x);
 468             break;
 469         case PixelFormat32bppARGB:
 470             setpixel_32bppARGB(r,g,b,a,row,x);
 471             break;
 472         case PixelFormat32bppPARGB:
 473             setpixel_32bppPARGB(r,g,b,a,row,x);
 474             break;
 475         case PixelFormat48bppRGB:
 476             setpixel_48bppRGB(r,g,b,a,row,x);
 477             break;
 478         case PixelFormat64bppARGB:
 479             setpixel_64bppARGB(r,g,b,a,row,x);
 480             break;
 481         case PixelFormat64bppPARGB:
 482             setpixel_64bppPARGB(r,g,b,a,row,x);
 483             break;
 484         case PixelFormat8bppIndexed:
 485             setpixel_8bppIndexed(r,g,b,a,row,x,bitmap);
 486             break;
 487         case PixelFormat4bppIndexed:
 488             setpixel_4bppIndexed(r,g,b,a,row,x,bitmap);
 489             break;
 490         case PixelFormat1bppIndexed:
 491             setpixel_1bppIndexed(r,g,b,a,row,x,bitmap);
 492             break;
 493         default:
 494             FIXME("not implemented for format 0x%x\n", bitmap->format);
 495             return NotImplemented;
 496     }
 497
 498     return Ok;
 499 }
 500
 501 GpStatus convert_pixels(INT width, INT height,
 502     INT dst_stride, BYTE *dst_bits, PixelFormat dst_format,
 503     INT src_stride, const BYTE *src_bits, PixelFormat src_format, ARGB *src_palette)
 504 {
 505     INT x, y;
 506
 507     if (src_format == dst_format ||
 508         (dst_format == PixelFormat32bppRGB && PIXELFORMATBPP(src_format) == 32))
 509     {
 510         UINT widthbytes = PIXELFORMATBPP(src_format) * width / 8;
 511         for (y=0; y<height; y++)
 512             memcpy(dst_bits+dst_stride*y, src_bits+src_stride*y, widthbytes);
 513         return Ok;
 514     }
 515
 516 #define convert_indexed_to_rgb(getpixel_function, setpixel_function) do { \
 517     for (x=0; x<width; x++) \
 518         for (y=0; y<height; y++) { \
 519             BYTE index; \
 520             BYTE *color; \
 521             getpixel_function(&index, src_bits+src_stride*y, x); \
 522             color = (BYTE*)(&src_palette[index]); \
 523             setpixel_function(color[2], color[1], color[0], color[3], dst_bits+dst_stride*y, x); \
 524         } \
 525     return Ok; \
 526 } while (0);
 527
 528 #define convert_rgb_to_rgb(getpixel_function, setpixel_function) do { \
 529     for (x=0; x<width; x++) \
 530         for (y=0; y<height; y++) { \
 531             BYTE r, g, b, a; \
 532             getpixel_function(&r, &g, &b, &a, src_bits+src_stride*y, x); \
 533             setpixel_function(r, g, b, a, dst_bits+dst_stride*y, x); \
 534         } \
 535     return Ok; \
 536 } while (0);
 537
 538     switch (src_format)
 539     {
 540     case PixelFormat1bppIndexed:
 541         switch (dst_format)
 542         {
 543         case PixelFormat16bppGrayScale:
 544             convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_16bppGrayScale);
 545         case PixelFormat16bppRGB555:
 546             convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_16bppRGB555);
 547         case PixelFormat16bppRGB565:
 548             convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_16bppRGB565);
 549         case PixelFormat16bppARGB1555:
 550             convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_16bppARGB1555);
 551         case PixelFormat24bppRGB:
 552             convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_24bppRGB);
 553         case PixelFormat32bppRGB:
 554             convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_32bppRGB);
 555         case PixelFormat32bppARGB:
 556             convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_32bppARGB);
 557         case PixelFormat32bppPARGB:
 558             convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_32bppPARGB);
 559         case PixelFormat48bppRGB:
 560             convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_48bppRGB);
 561         case PixelFormat64bppARGB:
 562             convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_64bppARGB);
 563         default:
 564             break;
 565         }
 566         break;
 567     case PixelFormat4bppIndexed:
 568         switch (dst_format)
 569         {
 570         case PixelFormat16bppGrayScale:
 571             convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_16bppGrayScale);
 572         case PixelFormat16bppRGB555:
 573             convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_16bppRGB555);
 574         case PixelFormat16bppRGB565:
 575             convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_16bppRGB565);
 576         case PixelFormat16bppARGB1555:
 577             convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_16bppARGB1555);
 578         case PixelFormat24bppRGB:
 579             convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_24bppRGB);
 580         case PixelFormat32bppRGB:
 581             convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_32bppRGB);
 582         case PixelFormat32bppARGB:
 583             convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_32bppARGB);
 584         case PixelFormat32bppPARGB:
 585             convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_32bppPARGB);
 586         case PixelFormat48bppRGB:
 587             convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_48bppRGB);
 588         case PixelFormat64bppARGB:
 589             convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_64bppARGB);
 590         default:
 591             break;
 592         }
 593         break;
 594     case PixelFormat8bppIndexed:
 595         switch (dst_format)
 596         {
 597         case PixelFormat16bppGrayScale:
 598             convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_16bppGrayScale);
 599         case PixelFormat16bppRGB555:
 600             convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_16bppRGB555);
 601         case PixelFormat16bppRGB565:
 602             convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_16bppRGB565);
 603         case PixelFormat16bppARGB1555:
 604             convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_16bppARGB1555);
 605         case PixelFormat24bppRGB:
 606             convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_24bppRGB);
 607         case PixelFormat32bppRGB:
 608             convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_32bppRGB);
 609         case PixelFormat32bppARGB:
 610             convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_32bppARGB);
 611         case PixelFormat32bppPARGB:
 612             convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_32bppPARGB);
 613         case PixelFormat48bppRGB:
 614             convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_48bppRGB);
 615         case PixelFormat64bppARGB:
 616             convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_64bppARGB);
 617         default:
 618             break;
 619         }
 620         break;
 621     case PixelFormat16bppGrayScale:
 622         switch (dst_format)
 623         {
 624         case PixelFormat16bppRGB555:
 625             convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_16bppRGB555);
 626         case PixelFormat16bppRGB565:
 627             convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_16bppRGB565);
 628         case PixelFormat16bppARGB1555:
 629             convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_16bppARGB1555);
 630         case PixelFormat24bppRGB:
 631             convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_24bppRGB);
 632         case PixelFormat32bppRGB:
 633             convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_32bppRGB);
 634         case PixelFormat32bppARGB:
 635             convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_32bppARGB);
 636         case PixelFormat32bppPARGB:
 637             convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_32bppPARGB);
 638         case PixelFormat48bppRGB:
 639             convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_48bppRGB);
 640         case PixelFormat64bppARGB:
 641             convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_64bppARGB);
 642         default:
 643             break;
 644         }
 645         break;
 646     case PixelFormat16bppRGB555:
 647         switch (dst_format)
 648         {
 649         case PixelFormat16bppGrayScale:
 650             convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_16bppGrayScale);
 651         case PixelFormat16bppRGB565:
 652             convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_16bppRGB565);
 653         case PixelFormat16bppARGB1555:
 654             convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_16bppARGB1555);
 655         case PixelFormat24bppRGB:
 656             convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_24bppRGB);
 657         case PixelFormat32bppRGB:
 658             convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_32bppRGB);
 659         case PixelFormat32bppARGB:
 660             convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_32bppARGB);
 661         case PixelFormat32bppPARGB:
 662             convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_32bppPARGB);
 663         case PixelFormat48bppRGB:
 664             convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_48bppRGB);
 665         case PixelFormat64bppARGB:
 666             convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_64bppARGB);
 667         default:
 668             break;
 669         }
 670         break;
 671     case PixelFormat16bppRGB565:
 672         switch (dst_format)
 673         {
 674         case PixelFormat16bppGrayScale:
 675             convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_16bppGrayScale);
 676         case PixelFormat16bppRGB555:
 677             convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_16bppRGB555);
 678         case PixelFormat16bppARGB1555:
 679             convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_16bppARGB1555);
 680         case PixelFormat24bppRGB:
 681             convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_24bppRGB);
 682         case PixelFormat32bppRGB:
 683             convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_32bppRGB);
 684         case PixelFormat32bppARGB:
 685             convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_32bppARGB);
 686         case PixelFormat32bppPARGB:
 687             convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_32bppPARGB);
 688         case PixelFormat48bppRGB:
 689             convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_48bppRGB);
 690         case PixelFormat64bppARGB:
 691             convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_64bppARGB);
 692         default:
 693             break;
 694         }
 695         break;
 696     case PixelFormat16bppARGB1555:
 697         switch (dst_format)
 698         {
 699         case PixelFormat16bppGrayScale:
 700             convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_16bppGrayScale);
 701         case PixelFormat16bppRGB555:
 702             convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_16bppRGB555);
 703         case PixelFormat16bppRGB565:
 704             convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_16bppRGB565);
 705         case PixelFormat24bppRGB:
 706             convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_24bppRGB);
 707         case PixelFormat32bppRGB:
 708             convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_32bppRGB);
 709         case PixelFormat32bppARGB:
 710             convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_32bppARGB);
 711         case PixelFormat32bppPARGB:
 712             convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_32bppPARGB);
 713         case PixelFormat48bppRGB:
 714             convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_48bppRGB);
 715         case PixelFormat64bppARGB:
 716             convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_64bppARGB);
 717         default:
 718             break;
 719         }
 720         break;
 721     case PixelFormat24bppRGB:
 722         switch (dst_format)
 723         {
 724         case PixelFormat16bppGrayScale:
 725             convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_16bppGrayScale);
 726         case PixelFormat16bppRGB555:
 727             convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_16bppRGB555);
 728         case PixelFormat16bppRGB565:
 729             convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_16bppRGB565);
 730         case PixelFormat16bppARGB1555:
 731             convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_16bppARGB1555);
 732         case PixelFormat32bppRGB:
 733             convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_32bppRGB);
 734         case PixelFormat32bppARGB:
 735             convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_32bppARGB);
 736         case PixelFormat32bppPARGB:
 737             convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_32bppPARGB);
 738         case PixelFormat48bppRGB:
 739             convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_48bppRGB);
 740         case PixelFormat64bppARGB:
 741             convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_64bppARGB);
 742         default:
 743             break;
 744         }
 745         break;
 746     case PixelFormat32bppRGB:
 747         switch (dst_format)
 748         {
 749         case PixelFormat16bppGrayScale:
 750             convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_16bppGrayScale);
 751         case PixelFormat16bppRGB555:
 752             convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_16bppRGB555);
 753         case PixelFormat16bppRGB565:
 754             convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_16bppRGB565);
 755         case PixelFormat16bppARGB1555:
 756             convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_16bppARGB1555);
 757         case PixelFormat24bppRGB:
 758             convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_24bppRGB);
 759         case PixelFormat32bppARGB:
 760             convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_32bppARGB);
 761         case PixelFormat32bppPARGB:
 762             convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_32bppPARGB);
 763         case PixelFormat48bppRGB:
 764             convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_48bppRGB);
 765         case PixelFormat64bppARGB:
 766             convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_64bppARGB);
 767         default:
 768             break;
 769         }
 770         break;
 771     case PixelFormat32bppARGB:
 772         switch (dst_format)
 773         {
 774         case PixelFormat16bppGrayScale:
 775             convert_rgb_to_rgb(getpixel_32bppARGB, setpixel_16bppGrayScale);
 776         case PixelFormat16bppRGB555:
 777             convert_rgb_to_rgb(getpixel_32bppARGB, setpixel_16bppRGB555);
 778         case PixelFormat16bppRGB565:
 779             convert_rgb_to_rgb(getpixel_32bppARGB, setpixel_16bppRGB565);
 780         case PixelFormat16bppARGB1555:
 781             convert_rgb_to_rgb(getpixel_32bppARGB, setpixel_16bppARGB1555);
 782         case PixelFormat24bppRGB:
 783             convert_rgb_to_rgb(getpixel_32bppARGB, setpixel_24bppRGB);
 784         case PixelFormat32bppPARGB:
 785             convert_32bppARGB_to_32bppPARGB(width, height, dst_bits, dst_stride, src_bits, src_stride);
 786             return Ok;
 787         case PixelFormat48bppRGB:
 788             convert_rgb_to_rgb(getpixel_32bppARGB, setpixel_48bppRGB);
 789         case PixelFormat64bppARGB:
 790             convert_rgb_to_rgb(getpixel_32bppARGB, setpixel_64bppARGB);
 791         default:
 792             break;
 793         }
 794         break;
 795     case PixelFormat32bppPARGB:
 796         switch (dst_format)
 797         {
 798         case PixelFormat16bppGrayScale:
 799             convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_16bppGrayScale);
 800         case PixelFormat16bppRGB555:
 801             convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_16bppRGB555);
 802         case PixelFormat16bppRGB565:
 803             convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_16bppRGB565);
 804         case PixelFormat16bppARGB1555:
 805             convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_16bppARGB1555);
 806         case PixelFormat24bppRGB:
 807             convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_24bppRGB);
 808         case PixelFormat32bppRGB:
 809             convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_32bppRGB);
 810         case PixelFormat32bppARGB:
 811             convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_32bppARGB);
 812         case PixelFormat48bppRGB:
 813             convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_48bppRGB);
 814         case PixelFormat64bppARGB:
 815             convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_64bppARGB);
 816         default:
 817             break;
 818         }
 819         break;
 820     case PixelFormat48bppRGB:
 821         switch (dst_format)
 822         {
 823         case PixelFormat16bppGrayScale:
 824             convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_16bppGrayScale);
 825         case PixelFormat16bppRGB555:
 826             convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_16bppRGB555);
 827         case PixelFormat16bppRGB565:
 828             convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_16bppRGB565);
 829         case PixelFormat16bppARGB1555:
 830             convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_16bppARGB1555);
 831         case PixelFormat24bppRGB:
 832             convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_24bppRGB);
 833         case PixelFormat32bppRGB:
 834             convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_32bppRGB);
 835         case PixelFormat32bppARGB:
 836             convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_32bppARGB);
 837         case PixelFormat32bppPARGB:
 838             convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_32bppPARGB);
 839         case PixelFormat64bppARGB:
 840             convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_64bppARGB);
 841         default:
 842             break;
 843         }
 844         break;
 845     case PixelFormat64bppARGB:
 846         switch (dst_format)
 847         {
 848         case PixelFormat16bppGrayScale:
 849             convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_16bppGrayScale);
 850         case PixelFormat16bppRGB555:
 851             convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_16bppRGB555);
 852         case PixelFormat16bppRGB565:
 853             convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_16bppRGB565);
 854         case PixelFormat16bppARGB1555:
 855             convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_16bppARGB1555);
 856         case PixelFormat24bppRGB:
 857             convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_24bppRGB);
 858         case PixelFormat32bppRGB:
 859             convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_32bppRGB);
 860         case PixelFormat32bppARGB:
 861             convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_32bppARGB);
 862         case PixelFormat32bppPARGB:
 863             convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_32bppPARGB);
 864         case PixelFormat48bppRGB:
 865             convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_48bppRGB);
 866         default:
 867             break;
 868         }
 869         break;
 870     case PixelFormat64bppPARGB:
 871         switch (dst_format)
 872         {
 873         case PixelFormat16bppGrayScale:
 874             convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_16bppGrayScale);
 875         case PixelFormat16bppRGB555:
 876             convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_16bppRGB555);
 877         case PixelFormat16bppRGB565:
 878             convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_16bppRGB565);
 879         case PixelFormat16bppARGB1555:
 880             convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_16bppARGB1555);
 881         case PixelFormat24bppRGB:
 882             convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_24bppRGB);
 883         case PixelFormat32bppRGB:
 884             convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_32bppRGB);
 885         case PixelFormat32bppARGB:
 886             convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_32bppARGB);
 887         case PixelFormat32bppPARGB:
 888             convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_32bppPARGB);
 889         case PixelFormat48bppRGB:
 890             convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_48bppRGB);
 891         case PixelFormat64bppARGB:
 892             convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_64bppARGB);
 893         default:
 894             break;
 895         }
 896         break;
 897     default:
 898         break;
 899     }
 900
 901 #undef convert_indexed_to_rgb
 902 #undef convert_rgb_to_rgb
 903
 904     return NotImplemented;
 905 }
 906
 907 /* This function returns a pointer to an array of pixels that represents the
 908  * bitmap. The *entire* bitmap is locked according to the lock mode specified by
 909  * flags.  It is correct behavior that a user who calls this function with write
 910  * privileges can write to the whole bitmap (not just the area in rect).
 911  *
 912  * FIXME: only used portion of format is bits per pixel. */
 913 GpStatus WINGDIPAPI GdipBitmapLockBits(GpBitmap* bitmap, GDIPCONST GpRect* rect,
 914     UINT flags, PixelFormat format, BitmapData* lockeddata)
 915 {
 916     INT bitspp = PIXELFORMATBPP(format);
 917     GpRect act_rect; /* actual rect to be used */
 918     GpStatus stat;
 919
 920     TRACE("%p %p %d 0x%x %p\n", bitmap, rect, flags, format, lockeddata);
 921
 922     if(!lockeddata || !bitmap)
 923         return InvalidParameter;
 924
 925     if(rect){
 926         if(rect->X < 0 || rect->Y < 0 || (rect->X + rect->Width > bitmap->width) ||
 927           (rect->Y + rect->Height > bitmap->height) || !flags)
 928             return InvalidParameter;
 929
 930         act_rect = *rect;
 931     }
 932     else{
 933         act_rect.X = act_rect.Y = 0;
 934         act_rect.Width  = bitmap->width;
 935         act_rect.Height = bitmap->height;
 936     }
 937
 938     if(bitmap->lockmode)
 939     {
 940         WARN("bitmap is already locked and cannot be locked again\n");
 941         return WrongState;
 942     }
 943
 944     if (bitmap->bits && bitmap->format == format && !(flags & ImageLockModeUserInputBuf))
 945     {
 946         /* no conversion is necessary; just use the bits directly */
 947         lockeddata->Width = act_rect.Width;
 948         lockeddata->Height = act_rect.Height;
 949         lockeddata->PixelFormat = format;
 950         lockeddata->Reserved = flags;
 951         lockeddata->Stride = bitmap->stride;
 952         lockeddata->Scan0 = bitmap->bits + (bitspp / 8) * act_rect.X +
 953                             bitmap->stride * act_rect.Y;
 954
 955         bitmap->lockmode = flags;
 956         bitmap->numlocks++;
 957
 958         return Ok;
 959     }
 960
 961     /* Make sure we can convert to the requested format. */
 962     if (flags & ImageLockModeRead)
 963     {
 964         stat = convert_pixels(0, 0, 0, NULL, format, 0, NULL, bitmap->format, NULL);
 965         if (stat == NotImplemented)
 966         {
 967             FIXME("cannot read bitmap from %x to %x\n", bitmap->format, format);
 968             return NotImplemented;
 969         }
 970     }
 971
 972     /* If we're opening for writing, make sure we'll be able to write back in
 973      * the original format. */
 974     if (flags & ImageLockModeWrite)
 975     {
 976         stat = convert_pixels(0, 0, 0, NULL, bitmap->format, 0, NULL, format, NULL);
 977         if (stat == NotImplemented)
 978         {
 979             FIXME("cannot write bitmap from %x to %x\n", format, bitmap->format);
 980             return NotImplemented;
 981         }
 982     }
 983
 984     lockeddata->Width  = act_rect.Width;
 985     lockeddata->Height = act_rect.Height;
 986     lockeddata->PixelFormat = format;
 987     lockeddata->Reserved = flags;
 988
 989     if(!(flags & ImageLockModeUserInputBuf))
 990     {
 991         lockeddata->Stride = (((act_rect.Width * bitspp + 7) / 8) + 3) & ~3;
 992
 993         bitmap->bitmapbits = GdipAlloc(lockeddata->Stride * act_rect.Height);
 994
 995         if (!bitmap->bitmapbits) return OutOfMemory;
 996
 997         lockeddata->Scan0  = bitmap->bitmapbits;
 998     }
 999
1000     if (flags & ImageLockModeRead)
1001     {
1002         static int fixme=0;
1003
1004         if (!fixme && (PIXELFORMATBPP(bitmap->format) * act_rect.X) % 8 != 0)
1005         {
1006             FIXME("Cannot copy rows that don't start at a whole byte.\n");
1007             fixme = 1;
1008         }
1009
1010         stat = convert_pixels(act_rect.Width, act_rect.Height,
1011             lockeddata->Stride, lockeddata->Scan0, format,
1012             bitmap->stride,
1013             bitmap->bits + bitmap->stride * act_rect.Y + PIXELFORMATBPP(bitmap->format) * act_rect.X / 8,
1014             bitmap->format, bitmap->image.palette_entries);
1015
1016         if (stat != Ok)
1017         {
1018             GdipFree(bitmap->bitmapbits);
1019             bitmap->bitmapbits = NULL;
1020             return stat;
1021         }
1022     }
1023
1024     bitmap->lockmode = flags;
1025     bitmap->numlocks++;
1026     bitmap->lockx = act_rect.X;
1027     bitmap->locky = act_rect.Y;
1028
1029     return Ok;
1030 }
1031
1032 GpStatus WINGDIPAPI GdipBitmapSetResolution(GpBitmap* bitmap, REAL xdpi, REAL ydpi)
1033 {
1034     TRACE("(%p, %.2f, %.2f)\n", bitmap, xdpi, ydpi);
1035
1036     if (!bitmap || xdpi == 0.0 || ydpi == 0.0)
1037         return InvalidParameter;
1038
1039     bitmap->image.xres = xdpi;
1040     bitmap->image.yres = ydpi;
1041
1042     return Ok;
1043 }
1044
1045 GpStatus WINGDIPAPI GdipBitmapUnlockBits(GpBitmap* bitmap,
1046     BitmapData* lockeddata)
1047 {
1048     GpStatus stat;
1049     static int fixme=0;
1050
1051     TRACE("(%p,%p)\n", bitmap, lockeddata);
1052
1053     if(!bitmap || !lockeddata)
1054         return InvalidParameter;
1055
1056     if(!bitmap->lockmode)
1057         return WrongState;
1058
1059     if(!(lockeddata->Reserved & ImageLockModeWrite)){
1060         if(!(--bitmap->numlocks))
1061             bitmap->lockmode = 0;
1062
1063         GdipFree(bitmap->bitmapbits);
1064         bitmap->bitmapbits = NULL;
1065         return Ok;
1066     }
1067
1068     if (!bitmap->bitmapbits && !(lockeddata->Reserved & ImageLockModeUserInputBuf))
1069     {
1070         /* we passed a direct reference; no need to do anything */
1071         bitmap->lockmode = 0;
1072         bitmap->numlocks = 0;
1073         return Ok;
1074     }
1075
1076     if (!fixme && (PIXELFORMATBPP(bitmap->format) * bitmap->lockx) % 8 != 0)
1077     {
1078         FIXME("Cannot copy rows that don't start at a whole byte.\n");
1079         fixme = 1;
1080     }
1081
1082     stat = convert_pixels(lockeddata->Width, lockeddata->Height,
1083         bitmap->stride,
1084         bitmap->bits + bitmap->stride * bitmap->locky + PIXELFORMATBPP(bitmap->format) * bitmap->lockx / 8,
1085         bitmap->format,
1086         lockeddata->Stride, lockeddata->Scan0, lockeddata->PixelFormat, NULL);
1087
1088     if (stat != Ok)
1089     {
1090         ERR("failed to convert pixels; this should never happen\n");
1091     }
1092
1093     GdipFree(bitmap->bitmapbits);
1094     bitmap->bitmapbits = NULL;
1095     bitmap->lockmode = 0;
1096     bitmap->numlocks = 0;
1097
1098     return stat;
1099 }
1100
1101 GpStatus WINGDIPAPI GdipCloneBitmapArea(REAL x, REAL y, REAL width, REAL height,
1102     PixelFormat format, GpBitmap* srcBitmap, GpBitmap** dstBitmap)
1103 {
1104     BitmapData lockeddata_src, lockeddata_dst;
1105     int i;
1106     UINT row_size;
1107     Rect area;
1108     GpStatus stat;
1109
1110     TRACE("(%f,%f,%f,%f,0x%x,%p,%p)\n", x, y, width, height, format, srcBitmap, dstBitmap);
1111
1112     if (!srcBitmap || !dstBitmap || srcBitmap->image.type != ImageTypeBitmap ||
1113         x < 0 || y < 0 ||
1114         x + width > srcBitmap->width || y + height > srcBitmap->height)
1115     {
1116         TRACE("<-- InvalidParameter\n");
1117         return InvalidParameter;
1118     }
1119
1120     if (format == PixelFormatDontCare)
1121         format = srcBitmap->format;
1122
1123     area.X = roundr(x);
1124     area.Y = roundr(y);
1125     area.Width = roundr(width);
1126     area.Height = roundr(height);
1127
1128     stat = GdipBitmapLockBits(srcBitmap, &area, ImageLockModeRead, format,
1129         &lockeddata_src);
1130     if (stat != Ok) return stat;
1131
1132     stat = GdipCreateBitmapFromScan0(lockeddata_src.Width, lockeddata_src.Height,
1133         0, lockeddata_src.PixelFormat, NULL, dstBitmap);
1134     if (stat == Ok)
1135     {
1136         stat = GdipBitmapLockBits(*dstBitmap, NULL, ImageLockModeWrite,
1137             lockeddata_src.PixelFormat, &lockeddata_dst);
1138
1139         if (stat == Ok)
1140         {
1141             /* copy the image data */
1142             row_size = (lockeddata_src.Width * PIXELFORMATBPP(lockeddata_src.PixelFormat) +7)/8;
1143             for (i=0; i<lockeddata_src.Height; i++)
1144                 memcpy((BYTE*)lockeddata_dst.Scan0+lockeddata_dst.Stride*i,
1145                        (BYTE*)lockeddata_src.Scan0+lockeddata_src.Stride*i,
1146                        row_size);
1147
1148             GdipBitmapUnlockBits(*dstBitmap, &lockeddata_dst);
1149         }
1150
1151         if (stat != Ok)
1152             GdipDisposeImage((GpImage*)*dstBitmap);
1153     }
1154
1155     GdipBitmapUnlockBits(srcBitmap, &lockeddata_src);
1156
1157     if (stat != Ok)
1158     {
1159         *dstBitmap = NULL;
1160     }
1161
1162     return stat;
1163 }
1164
1165 GpStatus WINGDIPAPI GdipCloneBitmapAreaI(INT x, INT y, INT width, INT height,
1166     PixelFormat format, GpBitmap* srcBitmap, GpBitmap** dstBitmap)
1167 {
1168     TRACE("(%i,%i,%i,%i,0x%x,%p,%p)\n", x, y, width, height, format, srcBitmap, dstBitmap);
1169
1170     return GdipCloneBitmapArea(x, y, width, height, format, srcBitmap, dstBitmap);
1171 }
1172
1173 GpStatus WINGDIPAPI GdipCloneImage(GpImage *image, GpImage **cloneImage)
1174 {
1175     GpStatus stat = GenericError;
1176
1177     TRACE("%p, %p\n", image, cloneImage);
1178
1179     if (!image || !cloneImage)
1180         return InvalidParameter;
1181
1182     if (image->picture)
1183     {
1184         IStream* stream;
1185         HRESULT hr;
1186         INT size;
1187         LARGE_INTEGER move;
1188
1189         hr = CreateStreamOnHGlobal(0, TRUE, &stream);
1190         if (FAILED(hr))
1191             return GenericError;
1192
1193         hr = IPicture_SaveAsFile(image->picture, stream, FALSE, &size);
1194         if(FAILED(hr))
1195         {
1196             WARN("Failed to save image on stream\n");
1197             goto out;
1198         }
1199
1200         /* Set seek pointer back to the beginning of the picture */
1201         move.QuadPart = 0;
1202         hr = IStream_Seek(stream, move, STREAM_SEEK_SET, NULL);
1203         if (FAILED(hr))
1204             goto out;
1205
1206         stat = GdipLoadImageFromStream(stream, cloneImage);
1207         if (stat != Ok) WARN("Failed to load image from stream\n");
1208
1209     out:
1210         IStream_Release(stream);
1211         return stat;
1212     }
1213     else if (image->type == ImageTypeBitmap)
1214     {
1215         GpBitmap *bitmap = (GpBitmap*)image;
1216         BitmapData lockeddata_src, lockeddata_dst;
1217         int i;
1218         UINT row_size;
1219
1220         stat = GdipBitmapLockBits(bitmap, NULL, ImageLockModeRead, bitmap->format,
1221             &lockeddata_src);
1222         if (stat != Ok) return stat;
1223
1224         stat = GdipCreateBitmapFromScan0(lockeddata_src.Width, lockeddata_src.Height,
1225             0, lockeddata_src.PixelFormat, NULL, (GpBitmap**)cloneImage);
1226         if (stat == Ok)
1227         {
1228             stat = GdipBitmapLockBits((GpBitmap*)*cloneImage, NULL, ImageLockModeWrite,
1229                 lockeddata_src.PixelFormat, &lockeddata_dst);
1230
1231             if (stat == Ok)
1232             {
1233                 /* copy the image data */
1234                 row_size = (lockeddata_src.Width * PIXELFORMATBPP(lockeddata_src.PixelFormat) +7)/8;
1235                 for (i=0; i<lockeddata_src.Height; i++)
1236                     memcpy((BYTE*)lockeddata_dst.Scan0+lockeddata_dst.Stride*i,
1237                            (BYTE*)lockeddata_src.Scan0+lockeddata_src.Stride*i,
1238                            row_size);
1239
1240                 GdipBitmapUnlockBits((GpBitmap*)*cloneImage, &lockeddata_dst);
1241             }
1242
1243             if (stat != Ok)
1244                 GdipDisposeImage(*cloneImage);
1245         }
1246
1247         GdipBitmapUnlockBits(bitmap, &lockeddata_src);
1248
1249         if (stat != Ok)
1250         {
1251             *cloneImage = NULL;
1252         }
1253         else memcpy(&(*cloneImage)->format, &image->format, sizeof(GUID));
1254
1255         return stat;
1256     }
1257     else
1258     {
1259         ERR("GpImage with no IPicture or bitmap?!\n");
1260         return NotImplemented;
1261     }
1262 }
1263
1264 GpStatus WINGDIPAPI GdipCreateBitmapFromFile(GDIPCONST WCHAR* filename,
1265     GpBitmap **bitmap)
1266 {
1267     GpStatus stat;
1268     IStream *stream;
1269
1270     TRACE("(%s) %p\n", debugstr_w(filename), bitmap);
1271
1272     if(!filename || !bitmap)
1273         return InvalidParameter;
1274
1275     stat = GdipCreateStreamOnFile(filename, GENERIC_READ, &stream);
1276
1277     if(stat != Ok)
1278         return stat;
1279
1280     stat = GdipCreateBitmapFromStream(stream, bitmap);
1281
1282     IStream_Release(stream);
1283
1284     return stat;
1285 }
1286
1287 GpStatus WINGDIPAPI GdipCreateBitmapFromGdiDib(GDIPCONST BITMAPINFO* info,
1288                                                VOID *bits, GpBitmap **bitmap)
1289 {
1290     DWORD height, stride;
1291     PixelFormat format;
1292
1293     FIXME("(%p, %p, %p) - partially implemented\n", info, bits, bitmap);
1294
1295     if (!info || !bits || !bitmap)
1296         return InvalidParameter;
1297
1298     height = abs(info->bmiHeader.biHeight);
1299     stride = ((info->bmiHeader.biWidth * info->bmiHeader.biBitCount + 31) >> 3) & ~3;
1300
1301     if(info->bmiHeader.biHeight > 0) /* bottom-up */
1302     {
1303         bits = (BYTE*)bits + (height - 1) * stride;
1304         stride = -stride;
1305     }
1306
1307     switch(info->bmiHeader.biBitCount) {
1308     case 1:
1309         format = PixelFormat1bppIndexed;
1310         break;
1311     case 4:
1312         format = PixelFormat4bppIndexed;
1313         break;
1314     case 8:
1315         format = PixelFormat8bppIndexed;
1316         break;
1317     case 16:
1318         format = PixelFormat16bppRGB555;
1319         break;
1320     case 24:
1321         format = PixelFormat24bppRGB;
1322         break;
1323     case 32:
1324         format = PixelFormat32bppRGB;
1325         break;
1326     default:
1327         FIXME("don't know how to handle %d bpp\n", info->bmiHeader.biBitCount);
1328         *bitmap = NULL;
1329         return InvalidParameter;
1330     }
1331
1332     return GdipCreateBitmapFromScan0(info->bmiHeader.biWidth, height, stride, format,
1333                                      bits, bitmap);
1334
1335 }
1336
1337 /* FIXME: no icm */
1338 GpStatus WINGDIPAPI GdipCreateBitmapFromFileICM(GDIPCONST WCHAR* filename,
1339     GpBitmap **bitmap)
1340 {
1341     TRACE("(%s) %p\n", debugstr_w(filename), bitmap);
1342
1343     return GdipCreateBitmapFromFile(filename, bitmap);
1344 }
1345
1346 GpStatus WINGDIPAPI GdipCreateBitmapFromResource(HINSTANCE hInstance,
1347     GDIPCONST WCHAR* lpBitmapName, GpBitmap** bitmap)
1348 {
1349     HBITMAP hbm;
1350     GpStatus stat = InvalidParameter;
1351
1352     TRACE("%p (%s) %p\n", hInstance, debugstr_w(lpBitmapName), bitmap);
1353
1354     if(!lpBitmapName || !bitmap)
1355         return InvalidParameter;
1356
1357     /* load DIB */
1358     hbm = LoadImageW(hInstance, lpBitmapName, IMAGE_BITMAP, 0, 0,
1359                      LR_CREATEDIBSECTION);
1360
1361     if(hbm){
1362         stat = GdipCreateBitmapFromHBITMAP(hbm, NULL, bitmap);
1363         DeleteObject(hbm);
1364     }
1365
1366     return stat;
1367 }
1368
1369 GpStatus WINGDIPAPI GdipCreateHBITMAPFromBitmap(GpBitmap* bitmap,
1370     HBITMAP* hbmReturn, ARGB background)
1371 {
1372     GpStatus stat;
1373     HBITMAP result, oldbitmap;
1374     UINT width, height;
1375     HDC hdc;
1376     GpGraphics *graphics;
1377     BITMAPINFOHEADER bih;
1378     void *bits;
1379     TRACE("(%p,%p,%x)\n", bitmap, hbmReturn, background);
1380
1381     if (!bitmap || !hbmReturn) return InvalidParameter;
1382
1383     GdipGetImageWidth((GpImage*)bitmap, &width);
1384     GdipGetImageHeight((GpImage*)bitmap, &height);
1385
1386     bih.biSize = sizeof(bih);
1387     bih.biWidth = width;
1388     bih.biHeight = height;
1389     bih.biPlanes = 1;
1390     bih.biBitCount = 32;
1391     bih.biCompression = BI_RGB;
1392     bih.biSizeImage = 0;
1393     bih.biXPelsPerMeter = 0;
1394     bih.biYPelsPerMeter = 0;
1395     bih.biClrUsed = 0;
1396     bih.biClrImportant = 0;
1397
1398     hdc = CreateCompatibleDC(NULL);
1399     if (!hdc) return GenericError;
1400
1401     result = CreateDIBSection(hdc, (BITMAPINFO*)&bih, DIB_RGB_COLORS, &bits,
1402         NULL, 0);
1403
1404     if (result)
1405     {
1406         oldbitmap = SelectObject(hdc, result);
1407
1408         stat = GdipCreateFromHDC(hdc, &graphics);
1409         if (stat == Ok)
1410         {
1411             stat = GdipGraphicsClear(graphics, background);
1412
1413             if (stat == Ok)
1414                 stat = GdipDrawImage(graphics, (GpImage*)bitmap, 0, 0);
1415
1416             GdipDeleteGraphics(graphics);
1417         }
1418
1419         SelectObject(hdc, oldbitmap);
1420     }
1421     else
1422         stat = GenericError;
1423
1424     DeleteDC(hdc);
1425
1426     if (stat != Ok && result)
1427     {
1428         DeleteObject(result);
1429         result = NULL;
1430     }
1431
1432     *hbmReturn = result;
1433
1434     return stat;
1435 }
1436
1437 GpStatus WINGDIPAPI GdipConvertToEmfPlus(const GpGraphics* ref,
1438     GpMetafile* metafile, BOOL* succ, EmfType emfType,
1439     const WCHAR* description, GpMetafile** out_metafile)
1440 {
1441     static int calls;
1442
1443     TRACE("(%p,%p,%p,%u,%s,%p)\n", ref, metafile, succ, emfType,
1444         debugstr_w(description), out_metafile);
1445
1446     if(!ref || !metafile || !out_metafile)
1447         return InvalidParameter;
1448
1449     *succ = FALSE;
1450     *out_metafile = NULL;
1451
1452     if(!(calls++))
1453         FIXME("not implemented\n");
1454
1455     return NotImplemented;
1456 }
1457
1458 /* FIXME: this should create a bitmap in the given size with the attributes
1459  * (resolution etc.) of the graphics object */
1460 GpStatus WINGDIPAPI GdipCreateBitmapFromGraphics(INT width, INT height,
1461     GpGraphics* target, GpBitmap** bitmap)
1462 {
1463     static int calls;
1464     GpStatus ret;
1465
1466     TRACE("(%d, %d, %p, %p)\n", width, height, target, bitmap);
1467
1468     if(!target || !bitmap)
1469         return InvalidParameter;
1470
1471     if(!(calls++))
1472         FIXME("hacked stub\n");
1473
1474     ret = GdipCreateBitmapFromScan0(width, height, 0, PixelFormat24bppRGB,
1475                                     NULL, bitmap);
1476
1477     return ret;
1478 }
1479
1480 GpStatus WINGDIPAPI GdipCreateBitmapFromHICON(HICON hicon, GpBitmap** bitmap)
1481 {
1482     GpStatus stat;
1483     ICONINFO iinfo;
1484     BITMAP bm;
1485     int ret;
1486     UINT width, height;
1487     GpRect rect;
1488     BitmapData lockeddata;
1489     HDC screendc;
1490     BOOL has_alpha;
1491     int x, y;
1492     BYTE *bits;
1493     BITMAPINFOHEADER bih;
1494     DWORD *src;
1495     BYTE *dst_row;
1496     DWORD *dst;
1497
1498     TRACE("%p, %p\n", hicon, bitmap);
1499
1500     if(!bitmap || !GetIconInfo(hicon, &iinfo))
1501         return InvalidParameter;
1502
1503     /* get the size of the icon */
1504     ret = GetObjectA(iinfo.hbmColor ? iinfo.hbmColor : iinfo.hbmMask, sizeof(bm), &bm);
1505     if (ret == 0) {
1506         DeleteObject(iinfo.hbmColor);
1507         DeleteObject(iinfo.hbmMask);
1508         return GenericError;
1509     }
1510
1511     width = bm.bmWidth;
1512
1513     if (iinfo.hbmColor)
1514         height = abs(bm.bmHeight);
1515     else /* combined bitmap + mask */
1516         height = abs(bm.bmHeight) / 2;
1517
1518     bits = HeapAlloc(GetProcessHeap(), 0, 4*width*height);
1519     if (!bits) {
1520         DeleteObject(iinfo.hbmColor);
1521         DeleteObject(iinfo.hbmMask);
1522         return OutOfMemory;
1523     }
1524
1525     stat = GdipCreateBitmapFromScan0(width, height, 0, PixelFormat32bppARGB, NULL, bitmap);
1526     if (stat != Ok) {
1527         DeleteObject(iinfo.hbmColor);
1528         DeleteObject(iinfo.hbmMask);
1529         HeapFree(GetProcessHeap(), 0, bits);
1530         return stat;
1531     }
1532
1533     rect.X = 0;
1534     rect.Y = 0;
1535     rect.Width = width;
1536     rect.Height = height;
1537
1538     stat = GdipBitmapLockBits(*bitmap, &rect, ImageLockModeWrite, PixelFormat32bppARGB, &lockeddata);
1539     if (stat != Ok) {
1540         DeleteObject(iinfo.hbmColor);
1541         DeleteObject(iinfo.hbmMask);
1542         HeapFree(GetProcessHeap(), 0, bits);
1543         GdipDisposeImage((GpImage*)*bitmap);
1544         return stat;
1545     }
1546
1547     bih.biSize = sizeof(bih);
1548     bih.biWidth = width;
1549     bih.biHeight = -height;
1550     bih.biPlanes = 1;
1551     bih.biBitCount = 32;
1552     bih.biCompression = BI_RGB;
1553     bih.biSizeImage = 0;
1554     bih.biXPelsPerMeter = 0;
1555     bih.biYPelsPerMeter = 0;
1556     bih.biClrUsed = 0;
1557     bih.biClrImportant = 0;
1558
1559     screendc = GetDC(0);
1560     if (iinfo.hbmColor)
1561     {
1562         GetDIBits(screendc, iinfo.hbmColor, 0, height, bits, (BITMAPINFO*)&bih, DIB_RGB_COLORS);
1563
1564         if (bm.bmBitsPixel == 32)
1565         {
1566             has_alpha = FALSE;
1567
1568             /* If any pixel has a non-zero alpha, ignore hbmMask */
1569             src = (DWORD*)bits;
1570             for (x=0; x<width && !has_alpha; x++)
1571                 for (y=0; y<height && !has_alpha; y++)
1572                     if ((*src++ & 0xff000000) != 0)
1573                         has_alpha = TRUE;
1574         }
1575         else has_alpha = FALSE;
1576     }
1577     else
1578     {
1579         GetDIBits(screendc, iinfo.hbmMask, 0, height, bits, (BITMAPINFO*)&bih, DIB_RGB_COLORS);
1580         has_alpha = FALSE;
1581     }
1582
1583     /* copy the image data to the Bitmap */
1584     src = (DWORD*)bits;
1585     dst_row = lockeddata.Scan0;
1586     for (y=0; y<height; y++)
1587     {
1588         memcpy(dst_row, src, width*4);
1589         src += width;
1590         dst_row += lockeddata.Stride;
1591     }
1592
1593     if (!has_alpha)
1594     {
1595         if (iinfo.hbmMask)
1596         {
1597             /* read alpha data from the mask */
1598             if (iinfo.hbmColor)
1599                 GetDIBits(screendc, iinfo.hbmMask, 0, height, bits, (BITMAPINFO*)&bih, DIB_RGB_COLORS);
1600             else
1601                 GetDIBits(screendc, iinfo.hbmMask, height, height, bits, (BITMAPINFO*)&bih, DIB_RGB_COLORS);
1602
1603             src = (DWORD*)bits;
1604             dst_row = lockeddata.Scan0;
1605             for (y=0; y<height; y++)
1606             {
1607                 dst = (DWORD*)dst_row;
1608                 for (x=0; x<height; x++)
1609                 {
1610                     DWORD src_value = *src++;
1611                     if (src_value)
1612                         *dst++ = 0;
1613                     else
1614                         *dst++ |= 0xff000000;
1615                 }
1616                 dst_row += lockeddata.Stride;
1617             }
1618         }
1619         else
1620         {
1621             /* set constant alpha of 255 */
1622             dst_row = bits;
1623             for (y=0; y<height; y++)
1624             {
1625                 dst = (DWORD*)dst_row;
1626                 for (x=0; x<height; x++)
1627                     *dst++ |= 0xff000000;
1628                 dst_row += lockeddata.Stride;
1629             }
1630         }
1631     }
1632
1633     ReleaseDC(0, screendc);
1634
1635     DeleteObject(iinfo.hbmColor);
1636     DeleteObject(iinfo.hbmMask);
1637
1638     GdipBitmapUnlockBits(*bitmap, &lockeddata);
1639
1640     HeapFree(GetProcessHeap(), 0, bits);
1641
1642     return Ok;
1643 }
1644
1645 static void generate_halftone_palette(ARGB *entries, UINT count)
1646 {
1647     static const BYTE halftone_values[6]={0x00,0x33,0x66,0x99,0xcc,0xff};
1648     UINT i;
1649
1650     for (i=0; i<8 && i<count; i++)
1651     {
1652         entries[i] = 0xff000000;
1653         if (i&1) entries[i] |= 0x800000;
1654         if (i&2) entries[i] |= 0x8000;
1655         if (i&4) entries[i] |= 0x80;
1656     }
1657
1658     if (8 < count)
1659         entries[i] = 0xffc0c0c0;
1660
1661     for (i=9; i<16 && i<count; i++)
1662     {
1663         entries[i] = 0xff000000;
1664         if (i&1) entries[i] |= 0xff0000;
1665         if (i&2) entries[i] |= 0xff00;
1666         if (i&4) entries[i] |= 0xff;
1667     }
1668
1669     for (i=16; i<40 && i<count; i++)
1670     {
1671         entries[i] = 0;
1672     }
1673
1674     for (i=40; i<256 && i<count; i++)
1675     {
1676         entries[i] = 0xff000000;
1677         entries[i] |= halftone_values[(i-40)%6];
1678         entries[i] |= halftone_values[((i-40)/6)%6] << 8;
1679         entries[i] |= halftone_values[((i-40)/36)%6] << 16;
1680     }
1681 }
1682
1683 static GpStatus get_screen_resolution(REAL *xres, REAL *yres)
1684 {
1685     HDC screendc = GetDC(0);
1686
1687     if (!screendc) return GenericError;
1688
1689     *xres = (REAL)GetDeviceCaps(screendc, LOGPIXELSX);
1690     *yres = (REAL)GetDeviceCaps(screendc, LOGPIXELSY);
1691
1692     ReleaseDC(0, screendc);
1693
1694     return Ok;
1695 }
1696
1697 GpStatus WINGDIPAPI GdipCreateBitmapFromScan0(INT width, INT height, INT stride,
1698     PixelFormat format, BYTE* scan0, GpBitmap** bitmap)
1699 {
1700     BITMAPINFO* pbmi;
1701     HBITMAP hbitmap=NULL;
1702     INT row_size, dib_stride;
1703     HDC hdc;
1704     BYTE *bits=NULL, *own_bits=NULL;
1705     REAL xres, yres;
1706     GpStatus stat;
1707
1708     TRACE("%d %d %d 0x%x %p %p\n", width, height, stride, format, scan0, bitmap);
1709
1710     if (!bitmap) return InvalidParameter;
1711
1712     if(width <= 0 || height <= 0 || (scan0 && (stride % 4))){
1713         *bitmap = NULL;
1714         return InvalidParameter;
1715     }
1716
1717     if(scan0 && !stride)
1718         return InvalidParameter;
1719
1720     stat = get_screen_resolution(&xres, &yres);
1721     if (stat != Ok) return stat;
1722
1723     row_size = (width * PIXELFORMATBPP(format)+7) / 8;
1724     dib_stride = (row_size + 3) & ~3;
1725
1726     if(stride == 0)
1727         stride = dib_stride;
1728
1729     if (format & PixelFormatGDI && !(format & (PixelFormatAlpha|PixelFormatIndexed)) && !scan0)
1730     {
1731         pbmi = GdipAlloc(sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
1732         if (!pbmi)
1733             return OutOfMemory;
1734
1735         pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
1736         pbmi->bmiHeader.biWidth = width;
1737         pbmi->bmiHeader.biHeight = -height;
1738         pbmi->bmiHeader.biPlanes = 1;
1739         /* FIXME: use the rest of the data from format */
1740         pbmi->bmiHeader.biBitCount = PIXELFORMATBPP(format);
1741         pbmi->bmiHeader.biCompression = BI_RGB;
1742         pbmi->bmiHeader.biSizeImage = 0;
1743         pbmi->bmiHeader.biXPelsPerMeter = 0;
1744         pbmi->bmiHeader.biYPelsPerMeter = 0;
1745         pbmi->bmiHeader.biClrUsed = 0;
1746         pbmi->bmiHeader.biClrImportant = 0;
1747
1748         hdc = CreateCompatibleDC(NULL);
1749         if (!hdc) {
1750             GdipFree(pbmi);
1751             return GenericError;
1752         }
1753
1754         hbitmap = CreateDIBSection(hdc, pbmi, DIB_RGB_COLORS, (void**)&bits, NULL, 0);
1755
1756         DeleteDC(hdc);
1757         GdipFree(pbmi);
1758
1759         if (!hbitmap) return GenericError;
1760
1761         stride = dib_stride;
1762     }
1763     else
1764     {
1765         /* Not a GDI format; don't try to make an HBITMAP. */
1766         if (scan0)
1767             bits = scan0;
1768         else
1769         {
1770             INT size = abs(stride) * height;
1771
1772             own_bits = bits = GdipAlloc(size);
1773             if (!own_bits) return OutOfMemory;
1774
1775             if (stride < 0)
1776                 bits += stride * (1 - height);
1777         }
1778     }
1779
1780     *bitmap = GdipAlloc(sizeof(GpBitmap));
1781     if(!*bitmap)
1782     {
1783         DeleteObject(hbitmap);
1784         GdipFree(own_bits);
1785         return OutOfMemory;
1786     }
1787
1788     (*bitmap)->image.type = ImageTypeBitmap;
1789     memcpy(&(*bitmap)->image.format, &ImageFormatMemoryBMP, sizeof(GUID));
1790     (*bitmap)->image.flags = ImageFlagsNone;
1791     (*bitmap)->image.palette_flags = 0;
1792     (*bitmap)->image.palette_count = 0;
1793     (*bitmap)->image.palette_size = 0;
1794     (*bitmap)->image.palette_entries = NULL;
1795     (*bitmap)->image.xres = xres;
1796     (*bitmap)->image.yres = yres;
1797     (*bitmap)->width = width;
1798     (*bitmap)->height = height;
1799     (*bitmap)->format = format;
1800     (*bitmap)->image.picture = NULL;
1801     (*bitmap)->hbitmap = hbitmap;
1802     (*bitmap)->hdc = NULL;
1803     (*bitmap)->bits = bits;
1804     (*bitmap)->stride = stride;
1805     (*bitmap)->own_bits = own_bits;
1806
1807     /* set format-related flags */
1808     if (format & (PixelFormatAlpha|PixelFormatPAlpha|PixelFormatIndexed))
1809         (*bitmap)->image.flags |= ImageFlagsHasAlpha;
1810
1811     if (format == PixelFormat1bppIndexed ||
1812         format == PixelFormat4bppIndexed ||
1813         format == PixelFormat8bppIndexed)
1814     {
1815         (*bitmap)->image.palette_size = (*bitmap)->image.palette_count = 1 << PIXELFORMATBPP(format);
1816         (*bitmap)->image.palette_entries = GdipAlloc(sizeof(ARGB) * ((*bitmap)->image.palette_size));
1817
1818         if (!(*bitmap)->image.palette_entries)
1819         {
1820             GdipDisposeImage(&(*bitmap)->image);
1821             *bitmap = NULL;
1822             return OutOfMemory;
1823         }
1824
1825         if (format == PixelFormat1bppIndexed)
1826         {
1827             (*bitmap)->image.palette_flags = PaletteFlagsGrayScale;
1828             (*bitmap)->image.palette_entries[0] = 0xff000000;
1829             (*bitmap)->image.palette_entries[1] = 0xffffffff;
1830         }
1831         else
1832         {
1833             if (format == PixelFormat8bppIndexed)
1834                 (*bitmap)->image.palette_flags = PaletteFlagsHalftone;
1835
1836             generate_halftone_palette((*bitmap)->image.palette_entries,
1837                 (*bitmap)->image.palette_count);
1838         }
1839     }
1840
1841     TRACE("<-- %p\n", *bitmap);
1842
1843     return Ok;
1844 }
1845
1846 GpStatus WINGDIPAPI GdipCreateBitmapFromStream(IStream* stream,
1847     GpBitmap **bitmap)
1848 {
1849     GpStatus stat;
1850
1851     TRACE("%p %p\n", stream, bitmap);
1852
1853     stat = GdipLoadImageFromStream(stream, (GpImage**) bitmap);
1854
1855     if(stat != Ok)
1856         return stat;
1857
1858     if((*bitmap)->image.type != ImageTypeBitmap){
1859         GdipDisposeImage(&(*bitmap)->image);
1860         *bitmap = NULL;
1861         return GenericError; /* FIXME: what error to return? */
1862     }
1863
1864     return Ok;
1865 }
1866
1867 /* FIXME: no icm */
1868 GpStatus WINGDIPAPI GdipCreateBitmapFromStreamICM(IStream* stream,
1869     GpBitmap **bitmap)
1870 {
1871     TRACE("%p %p\n", stream, bitmap);
1872
1873     return GdipCreateBitmapFromStream(stream, bitmap);
1874 }
1875
1876 GpStatus WINGDIPAPI GdipCreateCachedBitmap(GpBitmap *bitmap, GpGraphics *graphics,
1877     GpCachedBitmap **cachedbmp)
1878 {
1879     GpStatus stat;
1880
1881     TRACE("%p %p %p\n", bitmap, graphics, cachedbmp);
1882
1883     if(!bitmap || !graphics || !cachedbmp)
1884         return InvalidParameter;
1885
1886     *cachedbmp = GdipAlloc(sizeof(GpCachedBitmap));
1887     if(!*cachedbmp)
1888         return OutOfMemory;
1889
1890     stat = GdipCloneImage(&(bitmap->image), &(*cachedbmp)->image);
1891     if(stat != Ok){
1892         GdipFree(*cachedbmp);
1893         return stat;
1894     }
1895
1896     return Ok;
1897 }
1898
1899 GpStatus WINGDIPAPI GdipCreateHICONFromBitmap(GpBitmap *bitmap, HICON *hicon)
1900 {
1901     GpStatus stat;
1902     BitmapData lockeddata;
1903     ULONG andstride, xorstride, bitssize;
1904     LPBYTE andbits, xorbits, androw, xorrow, srcrow;
1905     UINT x, y;
1906
1907     TRACE("(%p, %p)\n", bitmap, hicon);
1908
1909     if (!bitmap || !hicon)
1910         return InvalidParameter;
1911
1912     stat = GdipBitmapLockBits(bitmap, NULL, ImageLockModeRead,
1913         PixelFormat32bppPARGB, &lockeddata);
1914     if (stat == Ok)
1915     {
1916         andstride = ((lockeddata.Width+31)/32)*4;
1917         xorstride = lockeddata.Width*4;
1918         bitssize = (andstride + xorstride) * lockeddata.Height;
1919
1920         andbits = GdipAlloc(bitssize);
1921
1922         if (andbits)
1923         {
1924             xorbits = andbits + andstride * lockeddata.Height;
1925
1926             for (y=0; y<lockeddata.Height; y++)
1927             {
1928                 srcrow = ((LPBYTE)lockeddata.Scan0) + lockeddata.Stride * y;
1929
1930                 androw = andbits + andstride * y;
1931                 for (x=0; x<lockeddata.Width; x++)
1932                     if (srcrow[3+4*x] >= 128)
1933                         androw[x/8] |= 1 << (7-x%8);
1934
1935                 xorrow = xorbits + xorstride * y;
1936                 memcpy(xorrow, srcrow, xorstride);
1937             }
1938
1939             *hicon = CreateIcon(NULL, lockeddata.Width, lockeddata.Height, 1, 32,
1940                 andbits, xorbits);
1941
1942             GdipFree(andbits);
1943         }
1944         else
1945             stat = OutOfMemory;
1946
1947         GdipBitmapUnlockBits(bitmap, &lockeddata);
1948     }
1949
1950     return stat;
1951 }
1952
1953 GpStatus WINGDIPAPI GdipDeleteCachedBitmap(GpCachedBitmap *cachedbmp)
1954 {
1955     TRACE("%p\n", cachedbmp);
1956
1957     if(!cachedbmp)
1958         return InvalidParameter;
1959
1960     GdipDisposeImage(cachedbmp->image);
1961     GdipFree(cachedbmp);
1962
1963     return Ok;
1964 }
1965
1966 GpStatus WINGDIPAPI GdipDrawCachedBitmap(GpGraphics *graphics,
1967     GpCachedBitmap *cachedbmp, INT x, INT y)
1968 {
1969     TRACE("%p %p %d %d\n", graphics, cachedbmp, x, y);
1970
1971     if(!graphics || !cachedbmp)
1972         return InvalidParameter;
1973
1974     return GdipDrawImage(graphics, cachedbmp->image, (REAL)x, (REAL)y);
1975 }
1976
1977 GpStatus WINGDIPAPI GdipEmfToWmfBits(HENHMETAFILE hemf, UINT cbData16,
1978     LPBYTE pData16, INT iMapMode, INT eFlags)
1979 {
1980     FIXME("(%p, %d, %p, %d, %d): stub\n", hemf, cbData16, pData16, iMapMode, eFlags);
1981     return NotImplemented;
1982 }
1983
1984 /* Internal utility function: Replace the image data of dst with that of src,
1985  * and free src. */
1986 static void move_bitmap(GpBitmap *dst, GpBitmap *src, BOOL clobber_palette)
1987 {
1988     GdipFree(dst->bitmapbits);
1989     DeleteDC(dst->hdc);
1990     DeleteObject(dst->hbitmap);
1991
1992     if (clobber_palette)
1993     {
1994         GdipFree(dst->image.palette_entries);
1995         dst->image.palette_flags = src->image.palette_flags;
1996         dst->image.palette_count = src->image.palette_count;
1997         dst->image.palette_entries = src->image.palette_entries;
1998     }
1999     else
2000         GdipFree(src->image.palette_entries);
2001
2002     dst->image.xres = src->image.xres;
2003     dst->image.yres = src->image.yres;
2004     dst->width = src->width;
2005     dst->height = src->height;
2006     dst->format = src->format;
2007     dst->hbitmap = src->hbitmap;
2008     dst->hdc = src->hdc;
2009     dst->bits = src->bits;
2010     dst->stride = src->stride;
2011     dst->own_bits = src->own_bits;
2012
2013     GdipFree(src);
2014 }
2015
2016 GpStatus WINGDIPAPI GdipDisposeImage(GpImage *image)
2017 {
2018     TRACE("%p\n", image);
2019
2020     if(!image)
2021         return InvalidParameter;
2022
2023     if (image->type == ImageTypeBitmap)
2024     {
2025         GdipFree(((GpBitmap*)image)->bitmapbits);
2026         GdipFree(((GpBitmap*)image)->own_bits);
2027         DeleteDC(((GpBitmap*)image)->hdc);
2028         DeleteObject(((GpBitmap*)image)->hbitmap);
2029     }
2030     else if (image->type == ImageTypeMetafile)
2031     {
2032         GpMetafile *metafile = (GpMetafile*)image;
2033         GdipFree(metafile->comment_data);
2034         DeleteEnhMetaFile(CloseEnhMetaFile(metafile->record_dc));
2035         DeleteEnhMetaFile(metafile->hemf);
2036         if (metafile->record_graphics)
2037         {
2038             WARN("metafile closed while recording\n");
2039             /* not sure what to do here; for now just prevent the graphics from functioning or using this object */
2040             metafile->record_graphics->image = NULL;
2041             metafile->record_graphics->busy = TRUE;
2042         }
2043     }
2044     else
2045     {
2046         WARN("invalid image: %p\n", image);
2047         return ObjectBusy;
2048     }
2049     if (image->picture)
2050         IPicture_Release(image->picture);
2051     GdipFree(image->palette_entries);
2052     image->type = ~0;
2053     GdipFree(image);
2054
2055     return Ok;
2056 }
2057
2058 GpStatus WINGDIPAPI GdipFindFirstImageItem(GpImage *image, ImageItemData* item)
2059 {
2060     static int calls;
2061
2062     TRACE("(%p,%p)\n", image, item);
2063
2064     if(!image || !item)
2065         return InvalidParameter;
2066
2067     if (!(calls++))
2068         FIXME("not implemented\n");
2069
2070     return NotImplemented;
2071 }
2072
2073 GpStatus WINGDIPAPI GdipGetImageItemData(GpImage *image, ImageItemData *item)
2074 {
2075     static int calls;
2076
2077     TRACE("(%p,%p)\n", image, item);
2078
2079     if (!(calls++))
2080         FIXME("not implemented\n");
2081
2082     return NotImplemented;
2083 }
2084
2085 GpStatus WINGDIPAPI GdipGetImageBounds(GpImage *image, GpRectF *srcRect,
2086     GpUnit *srcUnit)
2087 {
2088     TRACE("%p %p %p\n", image, srcRect, srcUnit);
2089
2090     if(!image || !srcRect || !srcUnit)
2091         return InvalidParameter;
2092     if(image->type == ImageTypeMetafile){
2093         *srcRect = ((GpMetafile*)image)->bounds;
2094         *srcUnit = ((GpMetafile*)image)->unit;
2095     }
2096     else if(image->type == ImageTypeBitmap){
2097         srcRect->X = srcRect->Y = 0.0;
2098         srcRect->Width = (REAL) ((GpBitmap*)image)->width;
2099         srcRect->Height = (REAL) ((GpBitmap*)image)->height;
2100         *srcUnit = UnitPixel;
2101     }
2102     else{
2103         srcRect->X = srcRect->Y = 0.0;
2104         srcRect->Width = ipicture_pixel_width(image->picture);
2105         srcRect->Height = ipicture_pixel_height(image->picture);
2106         *srcUnit = UnitPixel;
2107     }
2108
2109     TRACE("returning (%f, %f) (%f, %f) unit type %d\n", srcRect->X, srcRect->Y,
2110           srcRect->Width, srcRect->Height, *srcUnit);
2111
2112     return Ok;
2113 }
2114
2115 GpStatus WINGDIPAPI GdipGetImageDimension(GpImage *image, REAL *width,
2116     REAL *height)
2117 {
2118     TRACE("%p %p %p\n", image, width, height);
2119
2120     if(!image || !height || !width)
2121         return InvalidParameter;
2122
2123     if(image->type == ImageTypeMetafile){
2124         HDC hdc = GetDC(0);
2125         REAL res = (REAL)GetDeviceCaps(hdc, LOGPIXELSX);
2126
2127         ReleaseDC(0, hdc);
2128
2129         *height = convert_unit(res, ((GpMetafile*)image)->unit) *
2130                         ((GpMetafile*)image)->bounds.Height;
2131
2132         *width = convert_unit(res, ((GpMetafile*)image)->unit) *
2133                         ((GpMetafile*)image)->bounds.Width;
2134     }
2135
2136     else if(image->type == ImageTypeBitmap){
2137         *height = ((GpBitmap*)image)->height;
2138         *width = ((GpBitmap*)image)->width;
2139     }
2140     else{
2141         *height = ipicture_pixel_height(image->picture);
2142         *width = ipicture_pixel_width(image->picture);
2143     }
2144
2145     TRACE("returning (%f, %f)\n", *height, *width);
2146     return Ok;
2147 }
2148
2149 GpStatus WINGDIPAPI GdipGetImageGraphicsContext(GpImage *image,
2150     GpGraphics **graphics)
2151 {
2152     HDC hdc;
2153     GpStatus stat;
2154
2155     TRACE("%p %p\n", image, graphics);
2156
2157     if(!image || !graphics)
2158         return InvalidParameter;
2159
2160     if (image->type == ImageTypeBitmap && ((GpBitmap*)image)->hbitmap)
2161     {
2162         hdc = ((GpBitmap*)image)->hdc;
2163
2164         if(!hdc){
2165             hdc = CreateCompatibleDC(0);
2166             SelectObject(hdc, ((GpBitmap*)image)->hbitmap);
2167             ((GpBitmap*)image)->hdc = hdc;
2168         }
2169
2170         stat = GdipCreateFromHDC(hdc, graphics);
2171
2172         if (stat == Ok)
2173             (*graphics)->image = image;
2174     }
2175     else if (image->type == ImageTypeMetafile)
2176         stat = METAFILE_GetGraphicsContext((GpMetafile*)image, graphics);
2177     else
2178         stat = graphics_from_image(image, graphics);
2179
2180     return stat;
2181 }
2182
2183 GpStatus WINGDIPAPI GdipGetImageHeight(GpImage *image, UINT *height)
2184 {
2185     TRACE("%p %p\n", image, height);
2186
2187     if(!image || !height)
2188         return InvalidParameter;
2189
2190     if(image->type == ImageTypeMetafile){
2191         HDC hdc = GetDC(0);
2192         REAL res = (REAL)GetDeviceCaps(hdc, LOGPIXELSX);
2193
2194         ReleaseDC(0, hdc);
2195
2196         *height = roundr(convert_unit(res, ((GpMetafile*)image)->unit) *
2197                         ((GpMetafile*)image)->bounds.Height);
2198     }
2199     else if(image->type == ImageTypeBitmap)
2200         *height = ((GpBitmap*)image)->height;
2201     else
2202         *height = ipicture_pixel_height(image->picture);
2203
2204     TRACE("returning %d\n", *height);
2205
2206     return Ok;
2207 }
2208
2209 GpStatus WINGDIPAPI GdipGetImageHorizontalResolution(GpImage *image, REAL *res)
2210 {
2211     if(!image || !res)
2212         return InvalidParameter;
2213
2214     *res = image->xres;
2215
2216     TRACE("(%p) <-- %0.2f\n", image, *res);
2217
2218     return Ok;
2219 }
2220
2221 GpStatus WINGDIPAPI GdipGetImagePaletteSize(GpImage *image, INT *size)
2222 {
2223     TRACE("%p %p\n", image, size);
2224
2225     if(!image || !size)
2226         return InvalidParameter;
2227
2228     if (image->palette_count == 0)
2229         *size = sizeof(ColorPalette);
2230     else
2231         *size = sizeof(UINT)*2 + sizeof(ARGB)*image->palette_count;
2232
2233     TRACE("<-- %u\n", *size);
2234
2235     return Ok;
2236 }
2237
2238 /* FIXME: test this function for non-bitmap types */
2239 GpStatus WINGDIPAPI GdipGetImagePixelFormat(GpImage *image, PixelFormat *format)
2240 {
2241     TRACE("%p %p\n", image, format);
2242
2243     if(!image || !format)
2244         return InvalidParameter;
2245
2246     if(image->type != ImageTypeBitmap)
2247         *format = PixelFormat24bppRGB;
2248     else
2249         *format = ((GpBitmap*) image)->format;
2250
2251     return Ok;
2252 }
2253
2254 GpStatus WINGDIPAPI GdipGetImageRawFormat(GpImage *image, GUID *format)
2255 {
2256     TRACE("(%p, %p)\n", image, format);
2257
2258     if(!image || !format)
2259         return InvalidParameter;
2260
2261     memcpy(format, &image->format, sizeof(GUID));
2262
2263     return Ok;
2264 }
2265
2266 GpStatus WINGDIPAPI GdipGetImageType(GpImage *image, ImageType *type)
2267 {
2268     TRACE("%p %p\n", image, type);
2269
2270     if(!image || !type)
2271         return InvalidParameter;
2272
2273     *type = image->type;
2274
2275     return Ok;
2276 }
2277
2278 GpStatus WINGDIPAPI GdipGetImageVerticalResolution(GpImage *image, REAL *res)
2279 {
2280     if(!image || !res)
2281         return InvalidParameter;
2282
2283     *res = image->yres;
2284
2285     TRACE("(%p) <-- %0.2f\n", image, *res);
2286
2287     return Ok;
2288 }
2289
2290 GpStatus WINGDIPAPI GdipGetImageWidth(GpImage *image, UINT *width)
2291 {
2292     TRACE("%p %p\n", image, width);
2293
2294     if(!image || !width)
2295         return InvalidParameter;
2296
2297     if(image->type == ImageTypeMetafile){
2298         HDC hdc = GetDC(0);
2299         REAL res = (REAL)GetDeviceCaps(hdc, LOGPIXELSX);
2300
2301         ReleaseDC(0, hdc);
2302
2303         *width = roundr(convert_unit(res, ((GpMetafile*)image)->unit) *
2304                         ((GpMetafile*)image)->bounds.Width);
2305     }
2306     else if(image->type == ImageTypeBitmap)
2307         *width = ((GpBitmap*)image)->width;
2308     else
2309         *width = ipicture_pixel_width(image->picture);
2310
2311     TRACE("returning %d\n", *width);
2312
2313     return Ok;
2314 }
2315
2316 GpStatus WINGDIPAPI GdipGetMetafileHeaderFromMetafile(GpMetafile * metafile,
2317     MetafileHeader * header)
2318 {
2319     static int calls;
2320
2321     TRACE("(%p, %p)\n", metafile, header);
2322
2323     if(!metafile || !header)
2324         return InvalidParameter;
2325
2326     if(!(calls++))
2327         FIXME("not implemented\n");
2328
2329     memset(header, 0, sizeof(MetafileHeader));
2330
2331     return Ok;
2332 }
2333
2334 GpStatus WINGDIPAPI GdipGetMetafileHeaderFromEmf(HENHMETAFILE hEmf,
2335     MetafileHeader *header)
2336 {
2337     static int calls;
2338
2339     if(!hEmf || !header)
2340         return InvalidParameter;
2341
2342     if(!(calls++))
2343         FIXME("not implemented\n");
2344
2345     memset(header, 0, sizeof(MetafileHeader));
2346
2347     return Ok;
2348 }
2349
2350 GpStatus WINGDIPAPI GdipGetMetafileHeaderFromFile(GDIPCONST WCHAR *filename,
2351     MetafileHeader *header)
2352 {
2353     static int calls;
2354
2355     TRACE("(%s,%p)\n", debugstr_w(filename), header);
2356
2357     if(!filename || !header)
2358         return InvalidParameter;
2359
2360     if(!(calls++))
2361         FIXME("not implemented\n");
2362
2363     memset(header, 0, sizeof(MetafileHeader));
2364
2365     return Ok;
2366 }
2367
2368 GpStatus WINGDIPAPI GdipGetMetafileHeaderFromStream(IStream *stream,
2369     MetafileHeader *header)
2370 {
2371     static int calls;
2372
2373     TRACE("(%p,%p)\n", stream, header);
2374
2375     if(!stream || !header)
2376         return InvalidParameter;
2377
2378     if(!(calls++))
2379         FIXME("not implemented\n");
2380
2381     memset(header, 0, sizeof(MetafileHeader));
2382
2383     return Ok;
2384 }
2385
2386 GpStatus WINGDIPAPI GdipGetAllPropertyItems(GpImage *image, UINT size,
2387     UINT num, PropertyItem* items)
2388 {
2389     static int calls;
2390
2391     TRACE("(%p, %u, %u, %p)\n", image, size, num, items);
2392
2393     if(!(calls++))
2394         FIXME("not implemented\n");
2395
2396     return InvalidParameter;
2397 }
2398
2399 GpStatus WINGDIPAPI GdipGetPropertyCount(GpImage *image, UINT* num)
2400 {
2401     static int calls;
2402
2403     TRACE("(%p, %p)\n", image, num);
2404
2405     if(!(calls++))
2406         FIXME("not implemented\n");
2407
2408     return InvalidParameter;
2409 }
2410
2411 GpStatus WINGDIPAPI GdipGetPropertyIdList(GpImage *image, UINT num, PROPID* list)
2412 {
2413     static int calls;
2414
2415     TRACE("(%p, %u, %p)\n", image, num, list);
2416
2417     if(!(calls++))
2418         FIXME("not implemented\n");
2419
2420     return InvalidParameter;
2421 }
2422
2423 GpStatus WINGDIPAPI GdipGetPropertyItem(GpImage *image, PROPID id, UINT size,
2424     PropertyItem* buffer)
2425 {
2426     static int calls;
2427
2428     TRACE("(%p, %u, %u, %p)\n", image, id, size, buffer);
2429
2430     if(!(calls++))
2431         FIXME("not implemented\n");
2432
2433     return InvalidParameter;
2434 }
2435
2436 GpStatus WINGDIPAPI GdipGetPropertyItemSize(GpImage *image, PROPID pid,
2437     UINT* size)
2438 {
2439     static int calls;
2440
2441     TRACE("%p %x %p\n", image, pid, size);
2442
2443     if(!size || !image)
2444         return InvalidParameter;
2445
2446     if(!(calls++))
2447         FIXME("not implemented\n");
2448
2449     return NotImplemented;
2450 }
2451
2452 GpStatus WINGDIPAPI GdipGetPropertySize(GpImage *image, UINT* size, UINT* num)
2453 {
2454     static int calls;
2455
2456     TRACE("(%p,%p,%p)\n", image, size, num);
2457
2458     if(!(calls++))
2459         FIXME("not implemented\n");
2460
2461     return InvalidParameter;
2462 }
2463
2464 struct image_format_dimension
2465 {
2466     const GUID *format;
2467     const GUID *dimension;
2468 };
2469
2470 static struct image_format_dimension image_format_dimensions[] =
2471 {
2472     {&ImageFormatGIF, &FrameDimensionTime},
2473     {&ImageFormatIcon, &FrameDimensionResolution},
2474     {NULL}
2475 };
2476
2477 /* FIXME: Need to handle multi-framed images */
2478 GpStatus WINGDIPAPI GdipImageGetFrameCount(GpImage *image,
2479     GDIPCONST GUID* dimensionID, UINT* count)
2480 {
2481     static int calls;
2482
2483     TRACE("(%p,%s,%p)\n", image, debugstr_guid(dimensionID), count);
2484
2485     if(!image || !count)
2486         return InvalidParameter;
2487
2488     if(!(calls++))
2489         FIXME("returning frame count of 1\n");
2490
2491     *count = 1;
2492
2493     return Ok;
2494 }
2495
2496 GpStatus WINGDIPAPI GdipImageGetFrameDimensionsCount(GpImage *image,
2497     UINT* count)
2498 {
2499     TRACE("(%p, %p)\n", image, count);
2500
2501     /* Native gdiplus 1.1 does not yet support multiple frame dimensions. */
2502
2503     if(!image || !count)
2504         return InvalidParameter;
2505
2506     *count = 1;
2507
2508     return Ok;
2509 }
2510
2511 GpStatus WINGDIPAPI GdipImageGetFrameDimensionsList(GpImage* image,
2512     GUID* dimensionIDs, UINT count)
2513 {
2514     int i;
2515     const GUID *result=NULL;
2516
2517     TRACE("(%p,%p,%u)\n", image, dimensionIDs, count);
2518
2519     if(!image || !dimensionIDs || count != 1)
2520         return InvalidParameter;
2521
2522     for (i=0; image_format_dimensions[i].format; i++)
2523     {
2524         if (IsEqualGUID(&image->format, image_format_dimensions[i].format))
2525         {
2526             result = image_format_dimensions[i].dimension;
2527             break;
2528         }
2529     }
2530
2531     if (!result)
2532         result = &FrameDimensionPage;
2533
2534     memcpy(dimensionIDs, result, sizeof(GUID));
2535
2536     return Ok;
2537 }
2538
2539 GpStatus WINGDIPAPI GdipImageSelectActiveFrame(GpImage *image,
2540     GDIPCONST GUID* dimensionID, UINT frameidx)
2541 {
2542     static int calls;
2543
2544     TRACE("(%p, %s, %u)\n", image, debugstr_guid(dimensionID), frameidx);
2545
2546     if(!image || !dimensionID)
2547         return InvalidParameter;
2548
2549     if(!(calls++))
2550         FIXME("not implemented\n");
2551
2552     return Ok;
2553 }
2554
2555 GpStatus WINGDIPAPI GdipLoadImageFromFile(GDIPCONST WCHAR* filename,
2556                                           GpImage **image)
2557 {
2558     GpStatus stat;
2559     IStream *stream;
2560
2561     TRACE("(%s) %p\n", debugstr_w(filename), image);
2562
2563     if (!filename || !image)
2564         return InvalidParameter;
2565
2566     stat = GdipCreateStreamOnFile(filename, GENERIC_READ, &stream);
2567
2568     if (stat != Ok)
2569         return stat;
2570
2571     stat = GdipLoadImageFromStream(stream, image);
2572
2573     IStream_Release(stream);
2574
2575     return stat;
2576 }
2577
2578 /* FIXME: no icm handling */
2579 GpStatus WINGDIPAPI GdipLoadImageFromFileICM(GDIPCONST WCHAR* filename,GpImage **image)
2580 {
2581     TRACE("(%s) %p\n", debugstr_w(filename), image);
2582
2583     return GdipLoadImageFromFile(filename, image);
2584 }
2585
2586 static const WICPixelFormatGUID *wic_pixel_formats[] = {
2587     &GUID_WICPixelFormat16bppBGR555,
2588     &GUID_WICPixelFormat24bppBGR,
2589     &GUID_WICPixelFormat32bppBGR,
2590     &GUID_WICPixelFormat32bppBGRA,
2591     &GUID_WICPixelFormat32bppPBGRA,
2592     NULL
2593 };
2594
2595 static const PixelFormat wic_gdip_formats[] = {
2596     PixelFormat16bppRGB555,
2597     PixelFormat24bppRGB,
2598     PixelFormat32bppRGB,
2599     PixelFormat32bppARGB,
2600     PixelFormat32bppPARGB,
2601 };
2602
2603 static GpStatus decode_image_wic(IStream* stream, REFCLSID clsid, GpImage **image)
2604 {
2605     GpStatus status=Ok;
2606     GpBitmap *bitmap;
2607     HRESULT hr;
2608     IWICBitmapDecoder *decoder;
2609     IWICBitmapFrameDecode *frame;
2610     IWICBitmapSource *source=NULL;
2611     WICPixelFormatGUID wic_format;
2612     PixelFormat gdip_format=0;
2613     int i;
2614     UINT width, height;
2615     BitmapData lockeddata;
2616     WICRect wrc;
2617     HRESULT initresult;
2618
2619     initresult = CoInitialize(NULL);
2620
2621     hr = CoCreateInstance(clsid, NULL, CLSCTX_INPROC_SERVER,
2622         &IID_IWICBitmapDecoder, (void**)&decoder);
2623     if (FAILED(hr)) goto end;
2624
2625     hr = IWICBitmapDecoder_Initialize(decoder, (IStream*)stream, WICDecodeMetadataCacheOnLoad);
2626     if (SUCCEEDED(hr))
2627         hr = IWICBitmapDecoder_GetFrame(decoder, 0, &frame);
2628
2629     if (SUCCEEDED(hr)) /* got frame */
2630     {
2631         hr = IWICBitmapFrameDecode_GetPixelFormat(frame, &wic_format);
2632
2633         if (SUCCEEDED(hr))
2634         {
2635             for (i=0; wic_pixel_formats[i]; i++)
2636             {
2637                 if (IsEqualGUID(&wic_format, wic_pixel_formats[i]))
2638                 {
2639                     source = (IWICBitmapSource*)frame;
2640                     IWICBitmapSource_AddRef(source);
2641                     gdip_format = wic_gdip_formats[i];
2642                     break;
2643                 }
2644             }
2645             if (!source)
2646             {
2647                 /* unknown format; fall back on 32bppARGB */
2648                 hr = WICConvertBitmapSource(&GUID_WICPixelFormat32bppBGRA, (IWICBitmapSource*)frame, &source);
2649                 gdip_format = PixelFormat32bppARGB;
2650             }
2651         }
2652
2653         if (SUCCEEDED(hr)) /* got source */
2654         {
2655             hr = IWICBitmapSource_GetSize(source, &width, &height);
2656
2657             if (SUCCEEDED(hr))
2658                 status = GdipCreateBitmapFromScan0(width, height, 0, gdip_format,
2659                     NULL, &bitmap);
2660
2661             if (SUCCEEDED(hr) && status == Ok) /* created bitmap */
2662             {
2663                 status = GdipBitmapLockBits(bitmap, NULL, ImageLockModeWrite,
2664                     gdip_format, &lockeddata);
2665                 if (status == Ok) /* locked bitmap */
2666                 {
2667                     wrc.X = 0;
2668                     wrc.Width = width;
2669                     wrc.Height = 1;
2670                     for (i=0; i<height; i++)
2671                     {
2672                         wrc.Y = i;
2673                         hr = IWICBitmapSource_CopyPixels(source, &wrc, abs(lockeddata.Stride),
2674                             abs(lockeddata.Stride), (BYTE*)lockeddata.Scan0+lockeddata.Stride*i);
2675                         if (FAILED(hr)) break;
2676                     }
2677
2678                     GdipBitmapUnlockBits(bitmap, &lockeddata);
2679                 }
2680
2681                 if (SUCCEEDED(hr) && status == Ok)
2682                     *image = (GpImage*)bitmap;
2683                 else
2684                 {
2685                     *image = NULL;
2686                     GdipDisposeImage((GpImage*)bitmap);
2687                 }
2688
2689                 if (SUCCEEDED(hr) && status == Ok)
2690                 {
2691                     double dpix, dpiy;
2692                     hr = IWICBitmapSource_GetResolution(source, &dpix, &dpiy);
2693                     if (SUCCEEDED(hr))
2694                     {
2695                         bitmap->image.xres = dpix;
2696                         bitmap->image.yres = dpiy;
2697                     }
2698                     hr = S_OK;
2699                 }
2700             }
2701
2702             IWICBitmapSource_Release(source);
2703         }
2704
2705         IWICBitmapFrameDecode_Release(frame);
2706     }
2707
2708     IWICBitmapDecoder_Release(decoder);
2709
2710 end:
2711     if (SUCCEEDED(initresult)) CoUninitialize();
2712
2713     if (FAILED(hr) && status == Ok) status = hresult_to_status(hr);
2714
2715     if (status == Ok)
2716     {
2717         /* Native GDI+ used to be smarter, but since Win7 it just sets these flags. */
2718         bitmap->image.flags |= ImageFlagsReadOnly|ImageFlagsHasRealPixelSize|ImageFlagsHasRealDPI|ImageFlagsColorSpaceRGB;
2719     }
2720
2721     return status;
2722 }
2723
2724 static GpStatus decode_image_icon(IStream* stream, REFCLSID clsid, GpImage **image)
2725 {
2726     return decode_image_wic(stream, &CLSID_WICIcoDecoder, image);
2727 }
2728
2729 static GpStatus decode_image_bmp(IStream* stream, REFCLSID clsid, GpImage **image)
2730 {
2731     GpStatus status;
2732     GpBitmap* bitmap;
2733
2734     status = decode_image_wic(stream, &CLSID_WICBmpDecoder, image);
2735
2736     bitmap = (GpBitmap*)*image;
2737
2738     if (status == Ok && bitmap->format == PixelFormat32bppARGB)
2739     {
2740         /* WIC supports bmp files with alpha, but gdiplus does not */
2741         bitmap->format = PixelFormat32bppRGB;
2742     }
2743
2744     return status;
2745 }
2746
2747 static GpStatus decode_image_jpeg(IStream* stream, REFCLSID clsid, GpImage **image)
2748 {
2749     return decode_image_wic(stream, &CLSID_WICJpegDecoder, image);
2750 }
2751
2752 static GpStatus decode_image_png(IStream* stream, REFCLSID clsid, GpImage **image)
2753 {
2754     return decode_image_wic(stream, &CLSID_WICPngDecoder, image);
2755 }
2756
2757 static GpStatus decode_image_gif(IStream* stream, REFCLSID clsid, GpImage **image)
2758 {
2759     return decode_image_wic(stream, &CLSID_WICGifDecoder, image);
2760 }
2761
2762 static GpStatus decode_image_tiff(IStream* stream, REFCLSID clsid, GpImage **image)
2763 {
2764     return decode_image_wic(stream, &CLSID_WICTiffDecoder, image);
2765 }
2766
2767 static GpStatus decode_image_olepicture_metafile(IStream* stream, REFCLSID clsid, GpImage **image)
2768 {
2769     IPicture *pic;
2770
2771     TRACE("%p %p\n", stream, image);
2772
2773     if(!stream || !image)
2774         return InvalidParameter;
2775
2776     if(OleLoadPicture(stream, 0, FALSE, &IID_IPicture,
2777         (LPVOID*) &pic) != S_OK){
2778         TRACE("Could not load picture\n");
2779         return GenericError;
2780     }
2781
2782     /* FIXME: missing initialization code */
2783     *image = GdipAlloc(sizeof(GpMetafile));
2784     if(!*image) return OutOfMemory;
2785     (*image)->type = ImageTypeMetafile;
2786     (*image)->picture = pic;
2787     (*image)->flags   = ImageFlagsNone;
2788     (*image)->palette_flags = 0;
2789     (*image)->palette_count = 0;
2790     (*image)->palette_size = 0;
2791     (*image)->palette_entries = NULL;
2792
2793     TRACE("<-- %p\n", *image);
2794
2795     return Ok;
2796 }
2797
2798 typedef GpStatus (*encode_image_func)(GpImage *image, IStream* stream,
2799     GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params);
2800
2801 typedef GpStatus (*decode_image_func)(IStream *stream, REFCLSID clsid, GpImage** image);
2802
2803 typedef struct image_codec {
2804     ImageCodecInfo info;
2805     encode_image_func encode_func;
2806     decode_image_func decode_func;
2807 } image_codec;
2808
2809 typedef enum {
2810     BMP,
2811     JPEG,
2812     GIF,
2813     TIFF,
2814     EMF,
2815     WMF,
2816     PNG,
2817     ICO,
2818     NUM_CODECS
2819 } ImageFormat;
2820
2821 static const struct image_codec codecs[NUM_CODECS];
2822
2823 static GpStatus get_decoder_info(IStream* stream, const struct image_codec **result)
2824 {
2825     BYTE signature[8];
2826     const BYTE *pattern, *mask;
2827     LARGE_INTEGER seek;
2828     HRESULT hr;
2829     UINT bytesread;
2830     int i, j, sig;
2831
2832     /* seek to the start of the stream */
2833     seek.QuadPart = 0;
2834     hr = IStream_Seek(stream, seek, STREAM_SEEK_SET, NULL);
2835     if (FAILED(hr)) return hresult_to_status(hr);
2836
2837     /* read the first 8 bytes */
2838     /* FIXME: This assumes all codecs have signatures <= 8 bytes in length */
2839     hr = IStream_Read(stream, signature, 8, &bytesread);
2840     if (FAILED(hr)) return hresult_to_status(hr);
2841     if (hr == S_FALSE || bytesread == 0) return GenericError;
2842
2843     for (i = 0; i < NUM_CODECS; i++) {
2844         if ((codecs[i].info.Flags & ImageCodecFlagsDecoder) &&
2845             bytesread >= codecs[i].info.SigSize)
2846         {
2847             for (sig=0; sig<codecs[i].info.SigCount; sig++)
2848             {
2849                 pattern = &codecs[i].info.SigPattern[codecs[i].info.SigSize*sig];
2850                 mask = &codecs[i].info.SigMask[codecs[i].info.SigSize*sig];
2851                 for (j=0; j<codecs[i].info.SigSize; j++)
2852                     if ((signature[j] & mask[j]) != pattern[j])
2853                         break;
2854                 if (j == codecs[i].info.SigSize)
2855                 {
2856                     *result = &codecs[i];
2857                     return Ok;
2858                 }
2859             }
2860         }
2861     }
2862
2863     TRACE("no match for %i byte signature %x %x %x %x %x %x %x %x\n", bytesread,
2864         signature[0],signature[1],signature[2],signature[3],
2865         signature[4],signature[5],signature[6],signature[7]);
2866
2867     return GenericError;
2868 }
2869
2870 GpStatus WINGDIPAPI GdipLoadImageFromStream(IStream* stream, GpImage **image)
2871 {
2872     GpStatus stat;
2873     LARGE_INTEGER seek;
2874     HRESULT hr;
2875     const struct image_codec *codec=NULL;
2876
2877     /* choose an appropriate image decoder */
2878     stat = get_decoder_info(stream, &codec);
2879     if (stat != Ok) return stat;
2880
2881     /* seek to the start of the stream */
2882     seek.QuadPart = 0;
2883     hr = IStream_Seek(stream, seek, STREAM_SEEK_SET, NULL);
2884     if (FAILED(hr)) return hresult_to_status(hr);
2885
2886     /* call on the image decoder to do the real work */
2887     stat = codec->decode_func(stream, &codec->info.Clsid, image);
2888
2889     /* take note of the original data format */
2890     if (stat == Ok)
2891     {
2892         memcpy(&(*image)->format, &codec->info.FormatID, sizeof(GUID));
2893     }
2894
2895     return stat;
2896 }
2897
2898 /* FIXME: no ICM */
2899 GpStatus WINGDIPAPI GdipLoadImageFromStreamICM(IStream* stream, GpImage **image)
2900 {
2901     TRACE("%p %p\n", stream, image);
2902
2903     return GdipLoadImageFromStream(stream, image);
2904 }
2905
2906 GpStatus WINGDIPAPI GdipRemovePropertyItem(GpImage *image, PROPID propId)
2907 {
2908     static int calls;
2909
2910     TRACE("(%p,%u)\n", image, propId);
2911
2912     if(!image)
2913         return InvalidParameter;
2914
2915     if(!(calls++))
2916         FIXME("not implemented\n");
2917
2918     return NotImplemented;
2919 }
2920
2921 GpStatus WINGDIPAPI GdipSetPropertyItem(GpImage *image, GDIPCONST PropertyItem* item)
2922 {
2923     static int calls;
2924
2925     TRACE("(%p,%p)\n", image, item);
2926
2927     if(!(calls++))
2928         FIXME("not implemented\n");
2929
2930     return NotImplemented;
2931 }
2932
2933 GpStatus WINGDIPAPI GdipSaveImageToFile(GpImage *image, GDIPCONST WCHAR* filename,
2934                                         GDIPCONST CLSID *clsidEncoder,
2935                                         GDIPCONST EncoderParameters *encoderParams)
2936 {
2937     GpStatus stat;
2938     IStream *stream;
2939
2940     TRACE("%p (%s) %p %p\n", image, debugstr_w(filename), clsidEncoder, encoderParams);
2941
2942     if (!image || !filename|| !clsidEncoder)
2943         return InvalidParameter;
2944
2945     stat = GdipCreateStreamOnFile(filename, GENERIC_WRITE, &stream);
2946     if (stat != Ok)
2947         return GenericError;
2948
2949     stat = GdipSaveImageToStream(image, stream, clsidEncoder, encoderParams);
2950
2951     IStream_Release(stream);
2952     return stat;
2953 }
2954
2955 /*************************************************************************
2956  * Encoding functions -
2957  *   These functions encode an image in different image file formats.
2958  */
2959 #define BITMAP_FORMAT_BMP   0x4d42 /* "BM" */
2960 #define BITMAP_FORMAT_JPEG  0xd8ff
2961 #define BITMAP_FORMAT_GIF   0x4947
2962 #define BITMAP_FORMAT_PNG   0x5089
2963 #define BITMAP_FORMAT_APM   0xcdd7
2964
2965 static GpStatus encode_image_WIC(GpImage *image, IStream* stream,
2966     GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
2967 {
2968     GpStatus stat;
2969     GpBitmap *bitmap;
2970     IWICBitmapEncoder *encoder;
2971     IWICBitmapFrameEncode *frameencode;
2972     IPropertyBag2 *encoderoptions;
2973     HRESULT hr;
2974     UINT width, height;
2975     PixelFormat gdipformat=0;
2976     WICPixelFormatGUID wicformat;
2977     GpRect rc;
2978     BitmapData lockeddata;
2979     HRESULT initresult;
2980     UINT i;
2981
2982     if (image->type != ImageTypeBitmap)
2983         return GenericError;
2984
2985     bitmap = (GpBitmap*)image;
2986
2987     GdipGetImageWidth(image, &width);
2988     GdipGetImageHeight(image, &height);
2989
2990     rc.X = 0;
2991     rc.Y = 0;
2992     rc.Width = width;
2993     rc.Height = height;
2994
2995     initresult = CoInitialize(NULL);
2996
2997     hr = CoCreateInstance(clsid, NULL, CLSCTX_INPROC_SERVER,
2998         &IID_IWICBitmapEncoder, (void**)&encoder);
2999     if (FAILED(hr))
3000     {
3001         if (SUCCEEDED(initresult)) CoUninitialize();
3002         return hresult_to_status(hr);
3003     }
3004
3005     hr = IWICBitmapEncoder_Initialize(encoder, stream, WICBitmapEncoderNoCache);
3006
3007     if (SUCCEEDED(hr))
3008     {
3009         hr = IWICBitmapEncoder_CreateNewFrame(encoder, &frameencode, &encoderoptions);
3010     }
3011
3012     if (SUCCEEDED(hr)) /* created frame */
3013     {
3014         hr = IWICBitmapFrameEncode_Initialize(frameencode, encoderoptions);
3015
3016         if (SUCCEEDED(hr))
3017             hr = IWICBitmapFrameEncode_SetSize(frameencode, width, height);
3018
3019         if (SUCCEEDED(hr))
3020             /* FIXME: use the resolution from the image */
3021             hr = IWICBitmapFrameEncode_SetResolution(frameencode, 96.0, 96.0);
3022
3023         if (SUCCEEDED(hr))
3024         {
3025             for (i=0; wic_pixel_formats[i]; i++)
3026             {
3027                 if (wic_gdip_formats[i] == bitmap->format)
3028                     break;
3029             }
3030             if (wic_pixel_formats[i])
3031                 memcpy(&wicformat, wic_pixel_formats[i], sizeof(GUID));
3032             else
3033                 memcpy(&wicformat, &GUID_WICPixelFormat32bppBGRA, sizeof(GUID));
3034
3035             hr = IWICBitmapFrameEncode_SetPixelFormat(frameencode, &wicformat);
3036
3037             for (i=0; wic_pixel_formats[i]; i++)
3038             {
3039                 if (IsEqualGUID(&wicformat, wic_pixel_formats[i]))
3040                     break;
3041             }
3042             if (wic_pixel_formats[i])
3043                 gdipformat = wic_gdip_formats[i];
3044             else
3045             {
3046                 ERR("cannot provide pixel format %s\n", debugstr_guid(&wicformat));
3047                 hr = E_FAIL;
3048             }
3049         }
3050
3051         if (SUCCEEDED(hr))
3052         {
3053             stat = GdipBitmapLockBits(bitmap, &rc, ImageLockModeRead, gdipformat,
3054                 &lockeddata);
3055
3056             if (stat == Ok)
3057             {
3058                 UINT row_size = (lockeddata.Width * PIXELFORMATBPP(gdipformat) + 7)/8;
3059                 BYTE *row;
3060
3061                 /* write one row at a time in case stride is negative */
3062                 row = lockeddata.Scan0;
3063                 for (i=0; i<lockeddata.Height; i++)
3064                 {
3065                     hr = IWICBitmapFrameEncode_WritePixels(frameencode, 1, row_size, row_size, row);
3066                     if (FAILED(hr)) break;
3067                     row += lockeddata.Stride;
3068                 }
3069
3070                 GdipBitmapUnlockBits(bitmap, &lockeddata);
3071             }
3072             else
3073                 hr = E_FAIL;
3074         }
3075
3076         if (SUCCEEDED(hr))
3077             hr = IWICBitmapFrameEncode_Commit(frameencode);
3078
3079         IWICBitmapFrameEncode_Release(frameencode);
3080         IPropertyBag2_Release(encoderoptions);
3081     }
3082
3083     if (SUCCEEDED(hr))
3084         hr = IWICBitmapEncoder_Commit(encoder);
3085
3086     IWICBitmapEncoder_Release(encoder);
3087
3088     if (SUCCEEDED(initresult)) CoUninitialize();
3089
3090     return hresult_to_status(hr);
3091 }
3092
3093 static GpStatus encode_image_BMP(GpImage *image, IStream* stream,
3094     GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
3095 {
3096     return encode_image_WIC(image, stream, &CLSID_WICBmpEncoder, params);
3097 }
3098
3099 static GpStatus encode_image_tiff(GpImage *image, IStream* stream,
3100     GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
3101 {
3102     return encode_image_WIC(image, stream, &CLSID_WICTiffEncoder, params);
3103 }
3104
3105 static GpStatus encode_image_png(GpImage *image, IStream* stream,
3106     GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
3107 {
3108     return encode_image_WIC(image, stream, &CLSID_WICPngEncoder, params);
3109 }
3110
3111 /*****************************************************************************
3112  * GdipSaveImageToStream [GDIPLUS.@]
3113  */
3114 GpStatus WINGDIPAPI GdipSaveImageToStream(GpImage *image, IStream* stream,
3115     GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
3116 {
3117     GpStatus stat;
3118     encode_image_func encode_image;
3119     int i;
3120
3121     TRACE("%p %p %p %p\n", image, stream, clsid, params);
3122
3123     if(!image || !stream)
3124         return InvalidParameter;
3125
3126     /* select correct encoder */
3127     encode_image = NULL;
3128     for (i = 0; i < NUM_CODECS; i++) {
3129         if ((codecs[i].info.Flags & ImageCodecFlagsEncoder) &&
3130             IsEqualCLSID(clsid, &codecs[i].info.Clsid))
3131             encode_image = codecs[i].encode_func;
3132     }
3133     if (encode_image == NULL)
3134         return UnknownImageFormat;
3135
3136     stat = encode_image(image, stream, clsid, params);
3137
3138     return stat;
3139 }
3140
3141 /*****************************************************************************
3142  * GdipGetImagePalette [GDIPLUS.@]
3143  */
3144 GpStatus WINGDIPAPI GdipGetImagePalette(GpImage *image, ColorPalette *palette, INT size)
3145 {
3146     TRACE("(%p,%p,%i)\n", image, palette, size);
3147
3148     if (!image || !palette)
3149         return InvalidParameter;
3150
3151     if (size < (sizeof(UINT)*2+sizeof(ARGB)*image->palette_count))
3152     {
3153         TRACE("<-- InsufficientBuffer\n");
3154         return InsufficientBuffer;
3155     }
3156
3157     palette->Flags = image->palette_flags;
3158     palette->Count = image->palette_count;
3159     memcpy(palette->Entries, image->palette_entries, sizeof(ARGB)*image->palette_count);
3160
3161     return Ok;
3162 }
3163
3164 /*****************************************************************************
3165  * GdipSetImagePalette [GDIPLUS.@]
3166  */
3167 GpStatus WINGDIPAPI GdipSetImagePalette(GpImage *image,
3168     GDIPCONST ColorPalette *palette)
3169 {
3170     TRACE("(%p,%p)\n", image, palette);
3171
3172     if(!image || !palette || palette->Count > 256)
3173         return InvalidParameter;
3174
3175     if (palette->Count > image->palette_size)
3176     {
3177         ARGB *new_palette;
3178
3179         new_palette = GdipAlloc(sizeof(ARGB) * palette->Count);
3180         if (!new_palette) return OutOfMemory;
3181
3182         GdipFree(image->palette_entries);
3183         image->palette_entries = new_palette;
3184         image->palette_size = palette->Count;
3185     }
3186
3187     image->palette_flags = palette->Flags;
3188     image->palette_count = palette->Count;
3189     memcpy(image->palette_entries, palette->Entries, sizeof(ARGB)*palette->Count);
3190
3191     return Ok;
3192 }
3193
3194 /*************************************************************************
3195  * Encoders -
3196  *   Structures that represent which formats we support for encoding.
3197  */
3198
3199 /* ImageCodecInfo creation routines taken from libgdiplus */
3200 static const WCHAR bmp_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'B', 'M', 'P', 0}; /* Built-in BMP */
3201 static const WCHAR bmp_extension[] = {'*','.','B', 'M', 'P',';', '*','.', 'D','I', 'B',';', '*','.', 'R', 'L', 'E',0}; /* *.BMP;*.DIB;*.RLE */
3202 static const WCHAR bmp_mimetype[] = {'i', 'm', 'a','g', 'e', '/', 'b', 'm', 'p', 0}; /* image/bmp */
3203 static const WCHAR bmp_format[] = {'B', 'M', 'P', 0}; /* BMP */
3204 static const BYTE bmp_sig_pattern[] = { 0x42, 0x4D };
3205 static const BYTE bmp_sig_mask[] = { 0xFF, 0xFF };
3206
3207 static const WCHAR jpeg_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'J','P','E','G', 0};
3208 static const WCHAR jpeg_extension[] = {'*','.','J','P','G',';', '*','.','J','P','E','G',';', '*','.','J','P','E',';', '*','.','J','F','I','F',0};
3209 static const WCHAR jpeg_mimetype[] = {'i','m','a','g','e','/','j','p','e','g', 0};
3210 static const WCHAR jpeg_format[] = {'J','P','E','G',0};
3211 static const BYTE jpeg_sig_pattern[] = { 0xFF, 0xD8 };
3212 static const BYTE jpeg_sig_mask[] = { 0xFF, 0xFF };
3213
3214 static const WCHAR gif_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'G','I','F', 0};
3215 static const WCHAR gif_extension[] = {'*','.','G','I','F',0};
3216 static const WCHAR gif_mimetype[] = {'i','m','a','g','e','/','g','i','f', 0};
3217 static const WCHAR gif_format[] = {'G','I','F',0};
3218 static const BYTE gif_sig_pattern[4] = "GIF8";
3219 static const BYTE gif_sig_mask[] = { 0xFF, 0xFF, 0xFF, 0xFF };
3220
3221 static const WCHAR tiff_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'T','I','F','F', 0};
3222 static const WCHAR tiff_extension[] = {'*','.','T','I','F','F',';','*','.','T','I','F',0};
3223 static const WCHAR tiff_mimetype[] = {'i','m','a','g','e','/','t','i','f','f', 0};
3224 static const WCHAR tiff_format[] = {'T','I','F','F',0};
3225 static const BYTE tiff_sig_pattern[] = {0x49,0x49,42,0,0x4d,0x4d,0,42};
3226 static const BYTE tiff_sig_mask[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
3227
3228 static const WCHAR emf_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'E','M','F', 0};
3229 static const WCHAR emf_extension[] = {'*','.','E','M','F',0};
3230 static const WCHAR emf_mimetype[] = {'i','m','a','g','e','/','x','-','e','m','f', 0};
3231 static const WCHAR emf_format[] = {'E','M','F',0};
3232 static const BYTE emf_sig_pattern[] = { 0x01, 0x00, 0x00, 0x00 };
3233 static const BYTE emf_sig_mask[] = { 0xFF, 0xFF, 0xFF, 0xFF };
3234
3235 static const WCHAR wmf_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'W','M','F', 0};
3236 static const WCHAR wmf_extension[] = {'*','.','W','M','F',0};
3237 static const WCHAR wmf_mimetype[] = {'i','m','a','g','e','/','x','-','w','m','f', 0};
3238 static const WCHAR wmf_format[] = {'W','M','F',0};
3239 static const BYTE wmf_sig_pattern[] = { 0xd7, 0xcd };
3240 static const BYTE wmf_sig_mask[] = { 0xFF, 0xFF };
3241
3242 static const WCHAR png_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'P','N','G', 0};
3243 static const WCHAR png_extension[] = {'*','.','P','N','G',0};
3244 static const WCHAR png_mimetype[] = {'i','m','a','g','e','/','p','n','g', 0};
3245 static const WCHAR png_format[] = {'P','N','G',0};
3246 static const BYTE png_sig_pattern[] = { 137, 80, 78, 71, 13, 10, 26, 10, };
3247 static const BYTE png_sig_mask[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
3248
3249 static const WCHAR ico_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'I','C','O', 0};
3250 static const WCHAR ico_extension[] = {'*','.','I','C','O',0};
3251 static const WCHAR ico_mimetype[] = {'i','m','a','g','e','/','x','-','i','c','o','n', 0};
3252 static const WCHAR ico_format[] = {'I','C','O',0};
3253 static const BYTE ico_sig_pattern[] = { 0x00, 0x00, 0x01, 0x00 };
3254 static const BYTE ico_sig_mask[] = { 0xFF, 0xFF, 0xFF, 0xFF };
3255
3256 static const struct image_codec codecs[NUM_CODECS] = {
3257     {
3258         { /* BMP */
3259             /* Clsid */              { 0x557cf400, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3260             /* FormatID */           { 0xb96b3cabU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3261             /* CodecName */          bmp_codecname,
3262             /* DllName */            NULL,
3263             /* FormatDescription */  bmp_format,
3264             /* FilenameExtension */  bmp_extension,
3265             /* MimeType */           bmp_mimetype,
3266             /* Flags */              ImageCodecFlagsEncoder | ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
3267             /* Version */            1,
3268             /* SigCount */           1,
3269             /* SigSize */            2,
3270             /* SigPattern */         bmp_sig_pattern,
3271             /* SigMask */            bmp_sig_mask,
3272         },
3273         encode_image_BMP,
3274         decode_image_bmp
3275     },
3276     {
3277         { /* JPEG */
3278             /* Clsid */              { 0x557cf401, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3279             /* FormatID */           { 0xb96b3caeU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3280             /* CodecName */          jpeg_codecname,
3281             /* DllName */            NULL,
3282             /* FormatDescription */  jpeg_format,
3283             /* FilenameExtension */  jpeg_extension,
3284             /* MimeType */           jpeg_mimetype,
3285             /* Flags */              ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
3286             /* Version */            1,
3287             /* SigCount */           1,
3288             /* SigSize */            2,
3289             /* SigPattern */         jpeg_sig_pattern,
3290             /* SigMask */            jpeg_sig_mask,
3291         },
3292         NULL,
3293         decode_image_jpeg
3294     },
3295     {
3296         { /* GIF */
3297             /* Clsid */              { 0x557cf402, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3298             /* FormatID */           { 0xb96b3cb0U, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3299             /* CodecName */          gif_codecname,
3300             /* DllName */            NULL,
3301             /* FormatDescription */  gif_format,
3302             /* FilenameExtension */  gif_extension,
3303             /* MimeType */           gif_mimetype,
3304             /* Flags */              ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
3305             /* Version */            1,
3306             /* SigCount */           1,
3307             /* SigSize */            4,
3308             /* SigPattern */         gif_sig_pattern,
3309             /* SigMask */            gif_sig_mask,
3310         },
3311         NULL,
3312         decode_image_gif
3313     },
3314     {
3315         { /* TIFF */
3316             /* Clsid */              { 0x557cf405, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3317             /* FormatID */           { 0xb96b3cb1U, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3318             /* CodecName */          tiff_codecname,
3319             /* DllName */            NULL,
3320             /* FormatDescription */  tiff_format,
3321             /* FilenameExtension */  tiff_extension,
3322             /* MimeType */           tiff_mimetype,
3323             /* Flags */              ImageCodecFlagsDecoder | ImageCodecFlagsEncoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
3324             /* Version */            1,
3325             /* SigCount */           2,
3326             /* SigSize */            4,
3327             /* SigPattern */         tiff_sig_pattern,
3328             /* SigMask */            tiff_sig_mask,
3329         },
3330         encode_image_tiff,
3331         decode_image_tiff
3332     },
3333     {
3334         { /* EMF */
3335             /* Clsid */              { 0x557cf403, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3336             /* FormatID */           { 0xb96b3cacU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3337             /* CodecName */          emf_codecname,
3338             /* DllName */            NULL,
3339             /* FormatDescription */  emf_format,
3340             /* FilenameExtension */  emf_extension,
3341             /* MimeType */           emf_mimetype,
3342             /* Flags */              ImageCodecFlagsDecoder | ImageCodecFlagsSupportVector | ImageCodecFlagsBuiltin,
3343             /* Version */            1,
3344             /* SigCount */           1,
3345             /* SigSize */            4,
3346             /* SigPattern */         emf_sig_pattern,
3347             /* SigMask */            emf_sig_mask,
3348         },
3349         NULL,
3350         decode_image_olepicture_metafile
3351     },
3352     {
3353         { /* WMF */
3354             /* Clsid */              { 0x557cf404, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3355             /* FormatID */           { 0xb96b3cadU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3356             /* CodecName */          wmf_codecname,
3357             /* DllName */            NULL,
3358             /* FormatDescription */  wmf_format,
3359             /* FilenameExtension */  wmf_extension,
3360             /* MimeType */           wmf_mimetype,
3361             /* Flags */              ImageCodecFlagsDecoder | ImageCodecFlagsSupportVector | ImageCodecFlagsBuiltin,
3362             /* Version */            1,
3363             /* SigCount */           1,
3364             /* SigSize */            2,
3365             /* SigPattern */         wmf_sig_pattern,
3366             /* SigMask */            wmf_sig_mask,
3367         },
3368         NULL,
3369         decode_image_olepicture_metafile
3370     },
3371     {
3372         { /* PNG */
3373             /* Clsid */              { 0x557cf406, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3374             /* FormatID */           { 0xb96b3cafU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3375             /* CodecName */          png_codecname,
3376             /* DllName */            NULL,
3377             /* FormatDescription */  png_format,
3378             /* FilenameExtension */  png_extension,
3379             /* MimeType */           png_mimetype,
3380             /* Flags */              ImageCodecFlagsEncoder | ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
3381             /* Version */            1,
3382             /* SigCount */           1,
3383             /* SigSize */            8,
3384             /* SigPattern */         png_sig_pattern,
3385             /* SigMask */            png_sig_mask,
3386         },
3387         encode_image_png,
3388         decode_image_png
3389     },
3390     {
3391         { /* ICO */
3392             /* Clsid */              { 0x557cf407, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3393             /* FormatID */           { 0xb96b3cabU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3394             /* CodecName */          ico_codecname,
3395             /* DllName */            NULL,
3396             /* FormatDescription */  ico_format,
3397             /* FilenameExtension */  ico_extension,
3398             /* MimeType */           ico_mimetype,
3399             /* Flags */              ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
3400             /* Version */            1,
3401             /* SigCount */           1,
3402             /* SigSize */            4,
3403             /* SigPattern */         ico_sig_pattern,
3404             /* SigMask */            ico_sig_mask,
3405         },
3406         NULL,
3407         decode_image_icon
3408     },
3409 };
3410
3411 /*****************************************************************************
3412  * GdipGetImageDecodersSize [GDIPLUS.@]
3413  */
3414 GpStatus WINGDIPAPI GdipGetImageDecodersSize(UINT *numDecoders, UINT *size)
3415 {
3416     int decoder_count=0;
3417     int i;
3418     TRACE("%p %p\n", numDecoders, size);
3419
3420     if (!numDecoders || !size)
3421         return InvalidParameter;
3422
3423     for (i=0; i<NUM_CODECS; i++)
3424     {
3425         if (codecs[i].info.Flags & ImageCodecFlagsDecoder)
3426             decoder_count++;
3427     }
3428
3429     *numDecoders = decoder_count;
3430     *size = decoder_count * sizeof(ImageCodecInfo);
3431
3432     return Ok;
3433 }
3434
3435 /*****************************************************************************
3436  * GdipGetImageDecoders [GDIPLUS.@]
3437  */
3438 GpStatus WINGDIPAPI GdipGetImageDecoders(UINT numDecoders, UINT size, ImageCodecInfo *decoders)
3439 {
3440     int i, decoder_count=0;
3441     TRACE("%u %u %p\n", numDecoders, size, decoders);
3442
3443     if (!decoders ||
3444         size != numDecoders * sizeof(ImageCodecInfo))
3445         return GenericError;
3446
3447     for (i=0; i<NUM_CODECS; i++)
3448     {
3449         if (codecs[i].info.Flags & ImageCodecFlagsDecoder)
3450         {
3451             if (decoder_count == numDecoders) return GenericError;
3452             memcpy(&decoders[decoder_count], &codecs[i].info, sizeof(ImageCodecInfo));
3453             decoder_count++;
3454         }
3455     }
3456
3457     if (decoder_count < numDecoders) return GenericError;
3458
3459     return Ok;
3460 }
3461
3462 /*****************************************************************************
3463  * GdipGetImageEncodersSize [GDIPLUS.@]
3464  */
3465 GpStatus WINGDIPAPI GdipGetImageEncodersSize(UINT *numEncoders, UINT *size)
3466 {
3467     int encoder_count=0;
3468     int i;
3469     TRACE("%p %p\n", numEncoders, size);
3470
3471     if (!numEncoders || !size)
3472         return InvalidParameter;
3473
3474     for (i=0; i<NUM_CODECS; i++)
3475     {
3476         if (codecs[i].info.Flags & ImageCodecFlagsEncoder)
3477             encoder_count++;
3478     }
3479
3480     *numEncoders = encoder_count;
3481     *size = encoder_count * sizeof(ImageCodecInfo);
3482
3483     return Ok;
3484 }
3485
3486 /*****************************************************************************
3487  * GdipGetImageEncoders [GDIPLUS.@]
3488  */
3489 GpStatus WINGDIPAPI GdipGetImageEncoders(UINT numEncoders, UINT size, ImageCodecInfo *encoders)
3490 {
3491     int i, encoder_count=0;
3492     TRACE("%u %u %p\n", numEncoders, size, encoders);
3493
3494     if (!encoders ||
3495         size != numEncoders * sizeof(ImageCodecInfo))
3496         return GenericError;
3497
3498     for (i=0; i<NUM_CODECS; i++)
3499     {
3500         if (codecs[i].info.Flags & ImageCodecFlagsEncoder)
3501         {
3502             if (encoder_count == numEncoders) return GenericError;
3503             memcpy(&encoders[encoder_count], &codecs[i].info, sizeof(ImageCodecInfo));
3504             encoder_count++;
3505         }
3506     }
3507
3508     if (encoder_count < numEncoders) return GenericError;
3509
3510     return Ok;
3511 }
3512
3513 GpStatus WINGDIPAPI GdipGetEncoderParameterListSize(GpImage *image,
3514     GDIPCONST CLSID* clsidEncoder, UINT *size)
3515 {
3516     static int calls;
3517
3518     TRACE("(%p,%s,%p)\n", image, debugstr_guid(clsidEncoder), size);
3519
3520     if(!(calls++))
3521         FIXME("not implemented\n");
3522
3523     *size = 0;
3524
3525     return NotImplemented;
3526 }
3527
3528 /*****************************************************************************
3529  * GdipCreateBitmapFromHBITMAP [GDIPLUS.@]
3530  */
3531 GpStatus WINGDIPAPI GdipCreateBitmapFromHBITMAP(HBITMAP hbm, HPALETTE hpal, GpBitmap** bitmap)
3532 {
3533     BITMAP bm;
3534     GpStatus retval;
3535     PixelFormat format;
3536     BitmapData lockeddata;
3537     INT y;
3538
3539     TRACE("%p %p %p\n", hbm, hpal, bitmap);
3540
3541     if(!hbm || !bitmap)
3542         return InvalidParameter;
3543
3544     if (GetObjectA(hbm, sizeof(bm), &bm) != sizeof(bm))
3545             return InvalidParameter;
3546
3547     /* TODO: Figure out the correct format for 16, 32, 64 bpp */
3548     switch(bm.bmBitsPixel) {
3549         case 1:
3550             format = PixelFormat1bppIndexed;
3551             break;
3552         case 4:
3553             format = PixelFormat4bppIndexed;
3554             break;
3555         case 8:
3556             format = PixelFormat8bppIndexed;
3557             break;
3558         case 24:
3559             format = PixelFormat24bppRGB;
3560             break;
3561         case 32:
3562             format = PixelFormat32bppRGB;
3563             break;
3564         case 48:
3565             format = PixelFormat48bppRGB;
3566             break;
3567         default:
3568             FIXME("don't know how to handle %d bpp\n", bm.bmBitsPixel);
3569             return InvalidParameter;
3570     }
3571
3572     retval = GdipCreateBitmapFromScan0(bm.bmWidth, bm.bmHeight, 0,
3573         format, NULL, bitmap);
3574
3575     if (retval == Ok)
3576     {
3577         retval = GdipBitmapLockBits(*bitmap, NULL, ImageLockModeWrite,
3578             format, &lockeddata);
3579         if (retval == Ok)
3580         {
3581             if (bm.bmBits)
3582             {
3583                 for (y=0; y<bm.bmHeight; y++)
3584                 {
3585                     memcpy((BYTE*)lockeddata.Scan0+lockeddata.Stride*y,
3586                            (BYTE*)bm.bmBits+bm.bmWidthBytes*(bm.bmHeight-1-y),
3587                            bm.bmWidthBytes);
3588                 }
3589             }
3590             else
3591             {
3592                 HDC hdc;
3593                 HBITMAP oldhbm;
3594                 BITMAPINFO *pbmi;
3595                 INT src_height, dst_stride;
3596                 BYTE *dst_bits;
3597
3598                 hdc = CreateCompatibleDC(NULL);
3599                 oldhbm = SelectObject(hdc, hbm);
3600
3601                 pbmi = GdipAlloc(sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
3602
3603                 if (pbmi)
3604                 {
3605                     pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
3606                     pbmi->bmiHeader.biBitCount = 0;
3607
3608                     GetDIBits(hdc, hbm, 0, 0, NULL, pbmi, DIB_RGB_COLORS);
3609
3610                     src_height = abs(pbmi->bmiHeader.biHeight);
3611
3612                     if (pbmi->bmiHeader.biHeight > 0)
3613                     {
3614                         dst_bits = (BYTE*)lockeddata.Scan0+lockeddata.Stride*(src_height-1);
3615                         dst_stride = -lockeddata.Stride;
3616                     }
3617                     else
3618                     {
3619                         dst_bits = lockeddata.Scan0;
3620                         dst_stride = lockeddata.Stride;
3621                     }
3622
3623                     for (y=0; y<src_height; y++)
3624                     {
3625                         GetDIBits(hdc, hbm, y, 1, dst_bits+dst_stride*y,
3626                             pbmi, DIB_RGB_COLORS);
3627                     }
3628
3629                     GdipFree(pbmi);
3630                 }
3631                 else
3632                     retval = OutOfMemory;
3633
3634                 SelectObject(hdc, oldhbm);
3635                 DeleteDC(hdc);
3636             }
3637
3638             GdipBitmapUnlockBits(*bitmap, &lockeddata);
3639         }
3640
3641         if (retval == Ok && hpal)
3642         {
3643             WORD num_palette_entries;
3644             PALETTEENTRY *palette_entries=NULL;
3645             ColorPalette *palette=NULL;
3646             int i;
3647
3648             if (!GetObjectW(hpal, sizeof(num_palette_entries), &num_palette_entries))
3649                 retval = GenericError;
3650
3651             if (retval == Ok)
3652             {
3653                 palette_entries = GdipAlloc(sizeof(PALETTEENTRY) * num_palette_entries);
3654                 palette = GdipAlloc(sizeof(ColorPalette) + sizeof(ARGB) * (num_palette_entries-1));
3655
3656                 if (!palette_entries || !palette)
3657                     retval = OutOfMemory;
3658             }
3659
3660             if (retval == Ok)
3661             {
3662                 if (!GetPaletteEntries(hpal, 0, num_palette_entries, palette_entries))
3663                     retval = GenericError;
3664             }
3665
3666             if (retval == Ok)
3667             {
3668                 palette->Flags = 0;
3669                 palette->Count = num_palette_entries;
3670
3671                 for (i=0; i<num_palette_entries; i++)
3672                 {
3673                     PALETTEENTRY * entry = &palette_entries[i];
3674                     palette->Entries[i] = 0xff000000 | entry->peRed << 16 |
3675                         entry->peGreen << 8 | entry->peBlue;
3676                 }
3677
3678                 retval = GdipSetImagePalette((GpImage*)*bitmap, palette);
3679             }
3680
3681             GdipFree(palette_entries);
3682             GdipFree(palette);
3683         }
3684
3685         if (retval != Ok)
3686         {
3687             GdipDisposeImage((GpImage*)*bitmap);
3688             *bitmap = NULL;
3689         }
3690     }
3691
3692     return retval;
3693 }
3694
3695 GpStatus WINGDIPAPI GdipDeleteEffect(CGpEffect *effect)
3696 {
3697     FIXME("(%p): stub\n", effect);
3698     /* note: According to Jose Roca's GDI+ Docs, this is not implemented
3699      * in Windows's gdiplus */
3700     return NotImplemented;
3701 }
3702
3703 /*****************************************************************************
3704  * GdipSetEffectParameters [GDIPLUS.@]
3705  */
3706 GpStatus WINGDIPAPI GdipSetEffectParameters(CGpEffect *effect,
3707     const VOID *params, const UINT size)
3708 {
3709     static int calls;
3710
3711     TRACE("(%p,%p,%u)\n", effect, params, size);
3712
3713     if(!(calls++))
3714         FIXME("not implemented\n");
3715
3716     return NotImplemented;
3717 }
3718
3719 /*****************************************************************************
3720  * GdipGetImageFlags [GDIPLUS.@]
3721  */
3722 GpStatus WINGDIPAPI GdipGetImageFlags(GpImage *image, UINT *flags)
3723 {
3724     TRACE("%p %p\n", image, flags);
3725
3726     if(!image || !flags)
3727         return InvalidParameter;
3728
3729     *flags = image->flags;
3730
3731     return Ok;
3732 }
3733
3734 GpStatus WINGDIPAPI GdipTestControl(GpTestControlEnum control, void *param)
3735 {
3736     TRACE("(%d, %p)\n", control, param);
3737
3738     switch(control){
3739         case TestControlForceBilinear:
3740             if(param)
3741                 FIXME("TestControlForceBilinear not handled\n");
3742             break;
3743         case TestControlNoICM:
3744             if(param)
3745                 FIXME("TestControlNoICM not handled\n");
3746             break;
3747         case TestControlGetBuildNumber:
3748             *((DWORD*)param) = 3102;
3749             break;
3750     }
3751
3752     return Ok;
3753 }
3754
3755 GpStatus WINGDIPAPI GdipRecordMetafileFileName(GDIPCONST WCHAR* fileName,
3756                             HDC hdc, EmfType type, GDIPCONST GpRectF *pFrameRect,
3757                             MetafileFrameUnit frameUnit, GDIPCONST WCHAR *desc,
3758                             GpMetafile **metafile)
3759 {
3760     FIXME("%s %p %d %p %d %s %p stub!\n", debugstr_w(fileName), hdc, type, pFrameRect,
3761                                  frameUnit, debugstr_w(desc), metafile);
3762
3763     return NotImplemented;
3764 }
3765
3766 GpStatus WINGDIPAPI GdipRecordMetafileFileNameI(GDIPCONST WCHAR* fileName, HDC hdc, EmfType type,
3767                             GDIPCONST GpRect *pFrameRect, MetafileFrameUnit frameUnit,
3768                             GDIPCONST WCHAR *desc, GpMetafile **metafile)
3769 {
3770     FIXME("%s %p %d %p %d %s %p stub!\n", debugstr_w(fileName), hdc, type, pFrameRect,
3771                                  frameUnit, debugstr_w(desc), metafile);
3772
3773     return NotImplemented;
3774 }
3775
3776 GpStatus WINGDIPAPI GdipImageForceValidation(GpImage *image)
3777 {
3778     TRACE("%p\n", image);
3779
3780     return Ok;
3781 }
3782
3783 /*****************************************************************************
3784  * GdipGetImageThumbnail [GDIPLUS.@]
3785  */
3786 GpStatus WINGDIPAPI GdipGetImageThumbnail(GpImage *image, UINT width, UINT height,
3787                             GpImage **ret_image, GetThumbnailImageAbort cb,
3788                             VOID * cb_data)
3789 {
3790     GpStatus stat;
3791     GpGraphics *graphics;
3792     UINT srcwidth, srcheight;
3793
3794     TRACE("(%p %u %u %p %p %p)\n",
3795         image, width, height, ret_image, cb, cb_data);
3796
3797     if (!image || !ret_image)
3798         return InvalidParameter;
3799
3800     if (!width) width = 120;
3801     if (!height) height = 120;
3802
3803     GdipGetImageWidth(image, &srcwidth);
3804     GdipGetImageHeight(image, &srcheight);
3805
3806     stat = GdipCreateBitmapFromScan0(width, height, 0, PixelFormat32bppARGB,
3807         NULL, (GpBitmap**)ret_image);
3808
3809     if (stat == Ok)
3810     {
3811         stat = GdipGetImageGraphicsContext(*ret_image, &graphics);
3812
3813         if (stat == Ok)
3814         {
3815             stat = GdipDrawImageRectRectI(graphics, image,
3816                 0, 0, width, height, 0, 0, srcwidth, srcheight, UnitPixel,
3817                 NULL, NULL, NULL);
3818
3819             GdipDeleteGraphics(graphics);
3820         }
3821
3822         if (stat != Ok)
3823         {
3824             GdipDisposeImage(*ret_image);
3825             *ret_image = NULL;
3826         }
3827     }
3828
3829     return stat;
3830 }
3831
3832 /*****************************************************************************
3833  * GdipImageRotateFlip [GDIPLUS.@]
3834  */
3835 GpStatus WINGDIPAPI GdipImageRotateFlip(GpImage *image, RotateFlipType type)
3836 {
3837     GpBitmap *new_bitmap;
3838     GpBitmap *bitmap;
3839     int bpp, bytesperpixel;
3840     int rotate_90, flip_x, flip_y;
3841     int src_x_offset, src_y_offset;
3842     LPBYTE src_origin;
3843     UINT x, y, width, height;
3844     BitmapData src_lock, dst_lock;
3845     GpStatus stat;
3846
3847     TRACE("(%p, %u)\n", image, type);
3848
3849     rotate_90 = type&1;
3850     flip_x = (type&6) == 2 || (type&6) == 4;
3851     flip_y = (type&3) == 1 || (type&3) == 2;
3852
3853     if (image->type != ImageTypeBitmap)
3854     {
3855         FIXME("Not implemented for type %i\n", image->type);
3856         return NotImplemented;
3857     }
3858
3859     bitmap = (GpBitmap*)image;
3860     bpp = PIXELFORMATBPP(bitmap->format);
3861
3862     if (bpp < 8)
3863     {
3864         FIXME("Not implemented for %i bit images\n", bpp);
3865         return NotImplemented;
3866     }
3867
3868     if (rotate_90)
3869     {
3870         width = bitmap->height;
3871         height = bitmap->width;
3872     }
3873     else
3874     {
3875         width = bitmap->width;
3876         height = bitmap->height;
3877     }
3878
3879     bytesperpixel = bpp/8;
3880
3881     stat = GdipCreateBitmapFromScan0(width, height, 0, bitmap->format, NULL, &new_bitmap);
3882
3883     if (stat != Ok)
3884         return stat;
3885
3886     stat = GdipBitmapLockBits(bitmap, NULL, ImageLockModeRead, bitmap->format, &src_lock);
3887
3888     if (stat == Ok)
3889     {
3890         stat = GdipBitmapLockBits(new_bitmap, NULL, ImageLockModeWrite, bitmap->format, &dst_lock);
3891
3892         if (stat == Ok)
3893         {
3894             LPBYTE src_row, src_pixel;
3895             LPBYTE dst_row, dst_pixel;
3896
3897             src_origin = src_lock.Scan0;
3898             if (flip_x) src_origin += bytesperpixel * (bitmap->width - 1);
3899             if (flip_y) src_origin += src_lock.Stride * (bitmap->height - 1);
3900
3901             if (rotate_90)
3902             {
3903                 if (flip_y) src_x_offset = -src_lock.Stride;
3904                 else src_x_offset = src_lock.Stride;
3905                 if (flip_x) src_y_offset = -bytesperpixel;
3906                 else src_y_offset = bytesperpixel;
3907             }
3908             else
3909             {
3910                 if (flip_x) src_x_offset = -bytesperpixel;
3911                 else src_x_offset = bytesperpixel;
3912                 if (flip_y) src_y_offset = -src_lock.Stride;
3913                 else src_y_offset = src_lock.Stride;
3914             }
3915
3916             src_row = src_origin;
3917             dst_row = dst_lock.Scan0;
3918             for (y=0; y<height; y++)
3919             {
3920                 src_pixel = src_row;
3921                 dst_pixel = dst_row;
3922                 for (x=0; x<width; x++)
3923                 {
3924                     /* FIXME: This could probably be faster without memcpy. */
3925                     memcpy(dst_pixel, src_pixel, bytesperpixel);
3926                     dst_pixel += bytesperpixel;
3927                     src_pixel += src_x_offset;
3928                 }
3929                 src_row += src_y_offset;
3930                 dst_row += dst_lock.Stride;
3931             }
3932
3933             GdipBitmapUnlockBits(new_bitmap, &dst_lock);
3934         }
3935
3936         GdipBitmapUnlockBits(bitmap, &src_lock);
3937     }
3938
3939     if (stat == Ok)
3940         move_bitmap(bitmap, new_bitmap, FALSE);
3941     else
3942         GdipDisposeImage((GpImage*)new_bitmap);
3943
3944     return stat;
3945 }
3946
3947 /*****************************************************************************
3948  * GdipConvertToEmfPlusToFile [GDIPLUS.@]
3949  */
3950
3951 GpStatus WINGDIPAPI GdipConvertToEmfPlusToFile(const GpGraphics* refGraphics,
3952                                                GpMetafile* metafile, BOOL* conversionSuccess,
3953                                                const WCHAR* filename, EmfType emfType,
3954                                                const WCHAR* description, GpMetafile** out_metafile)
3955 {
3956     FIXME("stub: %p, %p, %p, %p, %u, %p, %p\n", refGraphics, metafile, conversionSuccess, filename, emfType, description, out_metafile);
3957     return NotImplemented;
3958 }