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;
1374     UINT width, height;
1375     BITMAPINFOHEADER bih;
1376     LPBYTE bits;
1377     BitmapData lockeddata;
1378     TRACE("(%p,%p,%x)\n", bitmap, hbmReturn, background);
1379
1380     if (!bitmap || !hbmReturn) return InvalidParameter;
1381
1382     GdipGetImageWidth((GpImage*)bitmap, &width);
1383     GdipGetImageHeight((GpImage*)bitmap, &height);
1384
1385     bih.biSize = sizeof(bih);
1386     bih.biWidth = width;
1387     bih.biHeight = height;
1388     bih.biPlanes = 1;
1389     bih.biBitCount = 32;
1390     bih.biCompression = BI_RGB;
1391     bih.biSizeImage = 0;
1392     bih.biXPelsPerMeter = 0;
1393     bih.biYPelsPerMeter = 0;
1394     bih.biClrUsed = 0;
1395     bih.biClrImportant = 0;
1396
1397     result = CreateDIBSection(0, (BITMAPINFO*)&bih, DIB_RGB_COLORS, (void**)&bits, NULL, 0);
1398
1399     if (result)
1400     {
1401         lockeddata.Stride = -width * 4;
1402         lockeddata.Scan0 = bits + (width * 4 * (height - 1));
1403
1404         stat = GdipBitmapLockBits(bitmap, NULL, ImageLockModeRead|ImageLockModeUserInputBuf,
1405             PixelFormat32bppPARGB, &lockeddata);
1406
1407         if (stat == Ok)
1408             stat = GdipBitmapUnlockBits(bitmap, &lockeddata);
1409     }
1410     else
1411         stat = GenericError;
1412
1413     if (stat != Ok && result)
1414     {
1415         DeleteObject(result);
1416         result = NULL;
1417     }
1418
1419     *hbmReturn = result;
1420
1421     return stat;
1422 }
1423
1424 GpStatus WINGDIPAPI GdipConvertToEmfPlus(const GpGraphics* ref,
1425     GpMetafile* metafile, BOOL* succ, EmfType emfType,
1426     const WCHAR* description, GpMetafile** out_metafile)
1427 {
1428     static int calls;
1429
1430     TRACE("(%p,%p,%p,%u,%s,%p)\n", ref, metafile, succ, emfType,
1431         debugstr_w(description), out_metafile);
1432
1433     if(!ref || !metafile || !out_metafile)
1434         return InvalidParameter;
1435
1436     *succ = FALSE;
1437     *out_metafile = NULL;
1438
1439     if(!(calls++))
1440         FIXME("not implemented\n");
1441
1442     return NotImplemented;
1443 }
1444
1445 /* FIXME: this should create a bitmap in the given size with the attributes
1446  * (resolution etc.) of the graphics object */
1447 GpStatus WINGDIPAPI GdipCreateBitmapFromGraphics(INT width, INT height,
1448     GpGraphics* target, GpBitmap** bitmap)
1449 {
1450     static int calls;
1451     GpStatus ret;
1452
1453     TRACE("(%d, %d, %p, %p)\n", width, height, target, bitmap);
1454
1455     if(!target || !bitmap)
1456         return InvalidParameter;
1457
1458     if(!(calls++))
1459         FIXME("hacked stub\n");
1460
1461     ret = GdipCreateBitmapFromScan0(width, height, 0, PixelFormat24bppRGB,
1462                                     NULL, bitmap);
1463
1464     return ret;
1465 }
1466
1467 GpStatus WINGDIPAPI GdipCreateBitmapFromHICON(HICON hicon, GpBitmap** bitmap)
1468 {
1469     GpStatus stat;
1470     ICONINFO iinfo;
1471     BITMAP bm;
1472     int ret;
1473     UINT width, height;
1474     GpRect rect;
1475     BitmapData lockeddata;
1476     HDC screendc;
1477     BOOL has_alpha;
1478     int x, y;
1479     BYTE *bits;
1480     BITMAPINFOHEADER bih;
1481     DWORD *src;
1482     BYTE *dst_row;
1483     DWORD *dst;
1484
1485     TRACE("%p, %p\n", hicon, bitmap);
1486
1487     if(!bitmap || !GetIconInfo(hicon, &iinfo))
1488         return InvalidParameter;
1489
1490     /* get the size of the icon */
1491     ret = GetObjectA(iinfo.hbmColor ? iinfo.hbmColor : iinfo.hbmMask, sizeof(bm), &bm);
1492     if (ret == 0) {
1493         DeleteObject(iinfo.hbmColor);
1494         DeleteObject(iinfo.hbmMask);
1495         return GenericError;
1496     }
1497
1498     width = bm.bmWidth;
1499
1500     if (iinfo.hbmColor)
1501         height = abs(bm.bmHeight);
1502     else /* combined bitmap + mask */
1503         height = abs(bm.bmHeight) / 2;
1504
1505     bits = HeapAlloc(GetProcessHeap(), 0, 4*width*height);
1506     if (!bits) {
1507         DeleteObject(iinfo.hbmColor);
1508         DeleteObject(iinfo.hbmMask);
1509         return OutOfMemory;
1510     }
1511
1512     stat = GdipCreateBitmapFromScan0(width, height, 0, PixelFormat32bppARGB, NULL, bitmap);
1513     if (stat != Ok) {
1514         DeleteObject(iinfo.hbmColor);
1515         DeleteObject(iinfo.hbmMask);
1516         HeapFree(GetProcessHeap(), 0, bits);
1517         return stat;
1518     }
1519
1520     rect.X = 0;
1521     rect.Y = 0;
1522     rect.Width = width;
1523     rect.Height = height;
1524
1525     stat = GdipBitmapLockBits(*bitmap, &rect, ImageLockModeWrite, PixelFormat32bppARGB, &lockeddata);
1526     if (stat != Ok) {
1527         DeleteObject(iinfo.hbmColor);
1528         DeleteObject(iinfo.hbmMask);
1529         HeapFree(GetProcessHeap(), 0, bits);
1530         GdipDisposeImage((GpImage*)*bitmap);
1531         return stat;
1532     }
1533
1534     bih.biSize = sizeof(bih);
1535     bih.biWidth = width;
1536     bih.biHeight = -height;
1537     bih.biPlanes = 1;
1538     bih.biBitCount = 32;
1539     bih.biCompression = BI_RGB;
1540     bih.biSizeImage = 0;
1541     bih.biXPelsPerMeter = 0;
1542     bih.biYPelsPerMeter = 0;
1543     bih.biClrUsed = 0;
1544     bih.biClrImportant = 0;
1545
1546     screendc = GetDC(0);
1547     if (iinfo.hbmColor)
1548     {
1549         GetDIBits(screendc, iinfo.hbmColor, 0, height, bits, (BITMAPINFO*)&bih, DIB_RGB_COLORS);
1550
1551         if (bm.bmBitsPixel == 32)
1552         {
1553             has_alpha = FALSE;
1554
1555             /* If any pixel has a non-zero alpha, ignore hbmMask */
1556             src = (DWORD*)bits;
1557             for (x=0; x<width && !has_alpha; x++)
1558                 for (y=0; y<height && !has_alpha; y++)
1559                     if ((*src++ & 0xff000000) != 0)
1560                         has_alpha = TRUE;
1561         }
1562         else has_alpha = FALSE;
1563     }
1564     else
1565     {
1566         GetDIBits(screendc, iinfo.hbmMask, 0, height, bits, (BITMAPINFO*)&bih, DIB_RGB_COLORS);
1567         has_alpha = FALSE;
1568     }
1569
1570     /* copy the image data to the Bitmap */
1571     src = (DWORD*)bits;
1572     dst_row = lockeddata.Scan0;
1573     for (y=0; y<height; y++)
1574     {
1575         memcpy(dst_row, src, width*4);
1576         src += width;
1577         dst_row += lockeddata.Stride;
1578     }
1579
1580     if (!has_alpha)
1581     {
1582         if (iinfo.hbmMask)
1583         {
1584             /* read alpha data from the mask */
1585             if (iinfo.hbmColor)
1586                 GetDIBits(screendc, iinfo.hbmMask, 0, height, bits, (BITMAPINFO*)&bih, DIB_RGB_COLORS);
1587             else
1588                 GetDIBits(screendc, iinfo.hbmMask, height, height, bits, (BITMAPINFO*)&bih, DIB_RGB_COLORS);
1589
1590             src = (DWORD*)bits;
1591             dst_row = lockeddata.Scan0;
1592             for (y=0; y<height; y++)
1593             {
1594                 dst = (DWORD*)dst_row;
1595                 for (x=0; x<height; x++)
1596                 {
1597                     DWORD src_value = *src++;
1598                     if (src_value)
1599                         *dst++ = 0;
1600                     else
1601                         *dst++ |= 0xff000000;
1602                 }
1603                 dst_row += lockeddata.Stride;
1604             }
1605         }
1606         else
1607         {
1608             /* set constant alpha of 255 */
1609             dst_row = bits;
1610             for (y=0; y<height; y++)
1611             {
1612                 dst = (DWORD*)dst_row;
1613                 for (x=0; x<height; x++)
1614                     *dst++ |= 0xff000000;
1615                 dst_row += lockeddata.Stride;
1616             }
1617         }
1618     }
1619
1620     ReleaseDC(0, screendc);
1621
1622     DeleteObject(iinfo.hbmColor);
1623     DeleteObject(iinfo.hbmMask);
1624
1625     GdipBitmapUnlockBits(*bitmap, &lockeddata);
1626
1627     HeapFree(GetProcessHeap(), 0, bits);
1628
1629     return Ok;
1630 }
1631
1632 static void generate_halftone_palette(ARGB *entries, UINT count)
1633 {
1634     static const BYTE halftone_values[6]={0x00,0x33,0x66,0x99,0xcc,0xff};
1635     UINT i;
1636
1637     for (i=0; i<8 && i<count; i++)
1638     {
1639         entries[i] = 0xff000000;
1640         if (i&1) entries[i] |= 0x800000;
1641         if (i&2) entries[i] |= 0x8000;
1642         if (i&4) entries[i] |= 0x80;
1643     }
1644
1645     if (8 < count)
1646         entries[i] = 0xffc0c0c0;
1647
1648     for (i=9; i<16 && i<count; i++)
1649     {
1650         entries[i] = 0xff000000;
1651         if (i&1) entries[i] |= 0xff0000;
1652         if (i&2) entries[i] |= 0xff00;
1653         if (i&4) entries[i] |= 0xff;
1654     }
1655
1656     for (i=16; i<40 && i<count; i++)
1657     {
1658         entries[i] = 0;
1659     }
1660
1661     for (i=40; i<256 && i<count; i++)
1662     {
1663         entries[i] = 0xff000000;
1664         entries[i] |= halftone_values[(i-40)%6];
1665         entries[i] |= halftone_values[((i-40)/6)%6] << 8;
1666         entries[i] |= halftone_values[((i-40)/36)%6] << 16;
1667     }
1668 }
1669
1670 static GpStatus get_screen_resolution(REAL *xres, REAL *yres)
1671 {
1672     HDC screendc = GetDC(0);
1673
1674     if (!screendc) return GenericError;
1675
1676     *xres = (REAL)GetDeviceCaps(screendc, LOGPIXELSX);
1677     *yres = (REAL)GetDeviceCaps(screendc, LOGPIXELSY);
1678
1679     ReleaseDC(0, screendc);
1680
1681     return Ok;
1682 }
1683
1684 GpStatus WINGDIPAPI GdipCreateBitmapFromScan0(INT width, INT height, INT stride,
1685     PixelFormat format, BYTE* scan0, GpBitmap** bitmap)
1686 {
1687     BITMAPINFO* pbmi;
1688     HBITMAP hbitmap=NULL;
1689     INT row_size, dib_stride;
1690     BYTE *bits=NULL, *own_bits=NULL;
1691     REAL xres, yres;
1692     GpStatus stat;
1693
1694     TRACE("%d %d %d 0x%x %p %p\n", width, height, stride, format, scan0, bitmap);
1695
1696     if (!bitmap) return InvalidParameter;
1697
1698     if(width <= 0 || height <= 0 || (scan0 && (stride % 4))){
1699         *bitmap = NULL;
1700         return InvalidParameter;
1701     }
1702
1703     if(scan0 && !stride)
1704         return InvalidParameter;
1705
1706     stat = get_screen_resolution(&xres, &yres);
1707     if (stat != Ok) return stat;
1708
1709     row_size = (width * PIXELFORMATBPP(format)+7) / 8;
1710     dib_stride = (row_size + 3) & ~3;
1711
1712     if(stride == 0)
1713         stride = dib_stride;
1714
1715     if (format & PixelFormatGDI && !(format & (PixelFormatAlpha|PixelFormatIndexed)) && !scan0)
1716     {
1717         pbmi = GdipAlloc(sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
1718         if (!pbmi)
1719             return OutOfMemory;
1720
1721         pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
1722         pbmi->bmiHeader.biWidth = width;
1723         pbmi->bmiHeader.biHeight = -height;
1724         pbmi->bmiHeader.biPlanes = 1;
1725         /* FIXME: use the rest of the data from format */
1726         pbmi->bmiHeader.biBitCount = PIXELFORMATBPP(format);
1727         pbmi->bmiHeader.biCompression = BI_RGB;
1728         pbmi->bmiHeader.biSizeImage = 0;
1729         pbmi->bmiHeader.biXPelsPerMeter = 0;
1730         pbmi->bmiHeader.biYPelsPerMeter = 0;
1731         pbmi->bmiHeader.biClrUsed = 0;
1732         pbmi->bmiHeader.biClrImportant = 0;
1733
1734         hbitmap = CreateDIBSection(0, pbmi, DIB_RGB_COLORS, (void**)&bits, NULL, 0);
1735
1736         GdipFree(pbmi);
1737
1738         if (!hbitmap) return GenericError;
1739
1740         stride = dib_stride;
1741     }
1742     else
1743     {
1744         /* Not a GDI format; don't try to make an HBITMAP. */
1745         if (scan0)
1746             bits = scan0;
1747         else
1748         {
1749             INT size = abs(stride) * height;
1750
1751             own_bits = bits = GdipAlloc(size);
1752             if (!own_bits) return OutOfMemory;
1753
1754             if (stride < 0)
1755                 bits += stride * (1 - height);
1756         }
1757     }
1758
1759     *bitmap = GdipAlloc(sizeof(GpBitmap));
1760     if(!*bitmap)
1761     {
1762         DeleteObject(hbitmap);
1763         GdipFree(own_bits);
1764         return OutOfMemory;
1765     }
1766
1767     (*bitmap)->image.type = ImageTypeBitmap;
1768     memcpy(&(*bitmap)->image.format, &ImageFormatMemoryBMP, sizeof(GUID));
1769     (*bitmap)->image.flags = ImageFlagsNone;
1770     (*bitmap)->image.palette_flags = 0;
1771     (*bitmap)->image.palette_count = 0;
1772     (*bitmap)->image.palette_size = 0;
1773     (*bitmap)->image.palette_entries = NULL;
1774     (*bitmap)->image.xres = xres;
1775     (*bitmap)->image.yres = yres;
1776     (*bitmap)->width = width;
1777     (*bitmap)->height = height;
1778     (*bitmap)->format = format;
1779     (*bitmap)->image.picture = NULL;
1780     (*bitmap)->hbitmap = hbitmap;
1781     (*bitmap)->hdc = NULL;
1782     (*bitmap)->bits = bits;
1783     (*bitmap)->stride = stride;
1784     (*bitmap)->own_bits = own_bits;
1785
1786     /* set format-related flags */
1787     if (format & (PixelFormatAlpha|PixelFormatPAlpha|PixelFormatIndexed))
1788         (*bitmap)->image.flags |= ImageFlagsHasAlpha;
1789
1790     if (format == PixelFormat1bppIndexed ||
1791         format == PixelFormat4bppIndexed ||
1792         format == PixelFormat8bppIndexed)
1793     {
1794         (*bitmap)->image.palette_size = (*bitmap)->image.palette_count = 1 << PIXELFORMATBPP(format);
1795         (*bitmap)->image.palette_entries = GdipAlloc(sizeof(ARGB) * ((*bitmap)->image.palette_size));
1796
1797         if (!(*bitmap)->image.palette_entries)
1798         {
1799             GdipDisposeImage(&(*bitmap)->image);
1800             *bitmap = NULL;
1801             return OutOfMemory;
1802         }
1803
1804         if (format == PixelFormat1bppIndexed)
1805         {
1806             (*bitmap)->image.palette_flags = PaletteFlagsGrayScale;
1807             (*bitmap)->image.palette_entries[0] = 0xff000000;
1808             (*bitmap)->image.palette_entries[1] = 0xffffffff;
1809         }
1810         else
1811         {
1812             if (format == PixelFormat8bppIndexed)
1813                 (*bitmap)->image.palette_flags = PaletteFlagsHalftone;
1814
1815             generate_halftone_palette((*bitmap)->image.palette_entries,
1816                 (*bitmap)->image.palette_count);
1817         }
1818     }
1819
1820     TRACE("<-- %p\n", *bitmap);
1821
1822     return Ok;
1823 }
1824
1825 GpStatus WINGDIPAPI GdipCreateBitmapFromStream(IStream* stream,
1826     GpBitmap **bitmap)
1827 {
1828     GpStatus stat;
1829
1830     TRACE("%p %p\n", stream, bitmap);
1831
1832     stat = GdipLoadImageFromStream(stream, (GpImage**) bitmap);
1833
1834     if(stat != Ok)
1835         return stat;
1836
1837     if((*bitmap)->image.type != ImageTypeBitmap){
1838         GdipDisposeImage(&(*bitmap)->image);
1839         *bitmap = NULL;
1840         return GenericError; /* FIXME: what error to return? */
1841     }
1842
1843     return Ok;
1844 }
1845
1846 /* FIXME: no icm */
1847 GpStatus WINGDIPAPI GdipCreateBitmapFromStreamICM(IStream* stream,
1848     GpBitmap **bitmap)
1849 {
1850     TRACE("%p %p\n", stream, bitmap);
1851
1852     return GdipCreateBitmapFromStream(stream, bitmap);
1853 }
1854
1855 GpStatus WINGDIPAPI GdipCreateCachedBitmap(GpBitmap *bitmap, GpGraphics *graphics,
1856     GpCachedBitmap **cachedbmp)
1857 {
1858     GpStatus stat;
1859
1860     TRACE("%p %p %p\n", bitmap, graphics, cachedbmp);
1861
1862     if(!bitmap || !graphics || !cachedbmp)
1863         return InvalidParameter;
1864
1865     *cachedbmp = GdipAlloc(sizeof(GpCachedBitmap));
1866     if(!*cachedbmp)
1867         return OutOfMemory;
1868
1869     stat = GdipCloneImage(&(bitmap->image), &(*cachedbmp)->image);
1870     if(stat != Ok){
1871         GdipFree(*cachedbmp);
1872         return stat;
1873     }
1874
1875     return Ok;
1876 }
1877
1878 GpStatus WINGDIPAPI GdipCreateHICONFromBitmap(GpBitmap *bitmap, HICON *hicon)
1879 {
1880     GpStatus stat;
1881     BitmapData lockeddata;
1882     ULONG andstride, xorstride, bitssize;
1883     LPBYTE andbits, xorbits, androw, xorrow, srcrow;
1884     UINT x, y;
1885
1886     TRACE("(%p, %p)\n", bitmap, hicon);
1887
1888     if (!bitmap || !hicon)
1889         return InvalidParameter;
1890
1891     stat = GdipBitmapLockBits(bitmap, NULL, ImageLockModeRead,
1892         PixelFormat32bppPARGB, &lockeddata);
1893     if (stat == Ok)
1894     {
1895         andstride = ((lockeddata.Width+31)/32)*4;
1896         xorstride = lockeddata.Width*4;
1897         bitssize = (andstride + xorstride) * lockeddata.Height;
1898
1899         andbits = GdipAlloc(bitssize);
1900
1901         if (andbits)
1902         {
1903             xorbits = andbits + andstride * lockeddata.Height;
1904
1905             for (y=0; y<lockeddata.Height; y++)
1906             {
1907                 srcrow = ((LPBYTE)lockeddata.Scan0) + lockeddata.Stride * y;
1908
1909                 androw = andbits + andstride * y;
1910                 for (x=0; x<lockeddata.Width; x++)
1911                     if (srcrow[3+4*x] >= 128)
1912                         androw[x/8] |= 1 << (7-x%8);
1913
1914                 xorrow = xorbits + xorstride * y;
1915                 memcpy(xorrow, srcrow, xorstride);
1916             }
1917
1918             *hicon = CreateIcon(NULL, lockeddata.Width, lockeddata.Height, 1, 32,
1919                 andbits, xorbits);
1920
1921             GdipFree(andbits);
1922         }
1923         else
1924             stat = OutOfMemory;
1925
1926         GdipBitmapUnlockBits(bitmap, &lockeddata);
1927     }
1928
1929     return stat;
1930 }
1931
1932 GpStatus WINGDIPAPI GdipDeleteCachedBitmap(GpCachedBitmap *cachedbmp)
1933 {
1934     TRACE("%p\n", cachedbmp);
1935
1936     if(!cachedbmp)
1937         return InvalidParameter;
1938
1939     GdipDisposeImage(cachedbmp->image);
1940     GdipFree(cachedbmp);
1941
1942     return Ok;
1943 }
1944
1945 GpStatus WINGDIPAPI GdipDrawCachedBitmap(GpGraphics *graphics,
1946     GpCachedBitmap *cachedbmp, INT x, INT y)
1947 {
1948     TRACE("%p %p %d %d\n", graphics, cachedbmp, x, y);
1949
1950     if(!graphics || !cachedbmp)
1951         return InvalidParameter;
1952
1953     return GdipDrawImage(graphics, cachedbmp->image, (REAL)x, (REAL)y);
1954 }
1955
1956 GpStatus WINGDIPAPI GdipEmfToWmfBits(HENHMETAFILE hemf, UINT cbData16,
1957     LPBYTE pData16, INT iMapMode, INT eFlags)
1958 {
1959     FIXME("(%p, %d, %p, %d, %d): stub\n", hemf, cbData16, pData16, iMapMode, eFlags);
1960     return NotImplemented;
1961 }
1962
1963 /* Internal utility function: Replace the image data of dst with that of src,
1964  * and free src. */
1965 static void move_bitmap(GpBitmap *dst, GpBitmap *src, BOOL clobber_palette)
1966 {
1967     GdipFree(dst->bitmapbits);
1968     DeleteDC(dst->hdc);
1969     DeleteObject(dst->hbitmap);
1970
1971     if (clobber_palette)
1972     {
1973         GdipFree(dst->image.palette_entries);
1974         dst->image.palette_flags = src->image.palette_flags;
1975         dst->image.palette_count = src->image.palette_count;
1976         dst->image.palette_entries = src->image.palette_entries;
1977     }
1978     else
1979         GdipFree(src->image.palette_entries);
1980
1981     dst->image.xres = src->image.xres;
1982     dst->image.yres = src->image.yres;
1983     dst->width = src->width;
1984     dst->height = src->height;
1985     dst->format = src->format;
1986     dst->hbitmap = src->hbitmap;
1987     dst->hdc = src->hdc;
1988     dst->bits = src->bits;
1989     dst->stride = src->stride;
1990     dst->own_bits = src->own_bits;
1991
1992     GdipFree(src);
1993 }
1994
1995 GpStatus WINGDIPAPI GdipDisposeImage(GpImage *image)
1996 {
1997     TRACE("%p\n", image);
1998
1999     if(!image)
2000         return InvalidParameter;
2001
2002     if (image->type == ImageTypeBitmap)
2003     {
2004         GdipFree(((GpBitmap*)image)->bitmapbits);
2005         GdipFree(((GpBitmap*)image)->own_bits);
2006         DeleteDC(((GpBitmap*)image)->hdc);
2007         DeleteObject(((GpBitmap*)image)->hbitmap);
2008     }
2009     else if (image->type == ImageTypeMetafile)
2010     {
2011         GpMetafile *metafile = (GpMetafile*)image;
2012         GdipFree(metafile->comment_data);
2013         DeleteEnhMetaFile(CloseEnhMetaFile(metafile->record_dc));
2014         DeleteEnhMetaFile(metafile->hemf);
2015         if (metafile->record_graphics)
2016         {
2017             WARN("metafile closed while recording\n");
2018             /* not sure what to do here; for now just prevent the graphics from functioning or using this object */
2019             metafile->record_graphics->image = NULL;
2020             metafile->record_graphics->busy = TRUE;
2021         }
2022     }
2023     else
2024     {
2025         WARN("invalid image: %p\n", image);
2026         return ObjectBusy;
2027     }
2028     if (image->picture)
2029         IPicture_Release(image->picture);
2030     GdipFree(image->palette_entries);
2031     image->type = ~0;
2032     GdipFree(image);
2033
2034     return Ok;
2035 }
2036
2037 GpStatus WINGDIPAPI GdipFindFirstImageItem(GpImage *image, ImageItemData* item)
2038 {
2039     static int calls;
2040
2041     TRACE("(%p,%p)\n", image, item);
2042
2043     if(!image || !item)
2044         return InvalidParameter;
2045
2046     if (!(calls++))
2047         FIXME("not implemented\n");
2048
2049     return NotImplemented;
2050 }
2051
2052 GpStatus WINGDIPAPI GdipGetImageItemData(GpImage *image, ImageItemData *item)
2053 {
2054     static int calls;
2055
2056     TRACE("(%p,%p)\n", image, item);
2057
2058     if (!(calls++))
2059         FIXME("not implemented\n");
2060
2061     return NotImplemented;
2062 }
2063
2064 GpStatus WINGDIPAPI GdipGetImageBounds(GpImage *image, GpRectF *srcRect,
2065     GpUnit *srcUnit)
2066 {
2067     TRACE("%p %p %p\n", image, srcRect, srcUnit);
2068
2069     if(!image || !srcRect || !srcUnit)
2070         return InvalidParameter;
2071     if(image->type == ImageTypeMetafile){
2072         *srcRect = ((GpMetafile*)image)->bounds;
2073         *srcUnit = ((GpMetafile*)image)->unit;
2074     }
2075     else if(image->type == ImageTypeBitmap){
2076         srcRect->X = srcRect->Y = 0.0;
2077         srcRect->Width = (REAL) ((GpBitmap*)image)->width;
2078         srcRect->Height = (REAL) ((GpBitmap*)image)->height;
2079         *srcUnit = UnitPixel;
2080     }
2081     else{
2082         srcRect->X = srcRect->Y = 0.0;
2083         srcRect->Width = ipicture_pixel_width(image->picture);
2084         srcRect->Height = ipicture_pixel_height(image->picture);
2085         *srcUnit = UnitPixel;
2086     }
2087
2088     TRACE("returning (%f, %f) (%f, %f) unit type %d\n", srcRect->X, srcRect->Y,
2089           srcRect->Width, srcRect->Height, *srcUnit);
2090
2091     return Ok;
2092 }
2093
2094 GpStatus WINGDIPAPI GdipGetImageDimension(GpImage *image, REAL *width,
2095     REAL *height)
2096 {
2097     TRACE("%p %p %p\n", image, width, height);
2098
2099     if(!image || !height || !width)
2100         return InvalidParameter;
2101
2102     if(image->type == ImageTypeMetafile){
2103         HDC hdc = GetDC(0);
2104         REAL res = (REAL)GetDeviceCaps(hdc, LOGPIXELSX);
2105
2106         ReleaseDC(0, hdc);
2107
2108         *height = convert_unit(res, ((GpMetafile*)image)->unit) *
2109                         ((GpMetafile*)image)->bounds.Height;
2110
2111         *width = convert_unit(res, ((GpMetafile*)image)->unit) *
2112                         ((GpMetafile*)image)->bounds.Width;
2113     }
2114
2115     else if(image->type == ImageTypeBitmap){
2116         *height = ((GpBitmap*)image)->height;
2117         *width = ((GpBitmap*)image)->width;
2118     }
2119     else{
2120         *height = ipicture_pixel_height(image->picture);
2121         *width = ipicture_pixel_width(image->picture);
2122     }
2123
2124     TRACE("returning (%f, %f)\n", *height, *width);
2125     return Ok;
2126 }
2127
2128 GpStatus WINGDIPAPI GdipGetImageGraphicsContext(GpImage *image,
2129     GpGraphics **graphics)
2130 {
2131     HDC hdc;
2132     GpStatus stat;
2133
2134     TRACE("%p %p\n", image, graphics);
2135
2136     if(!image || !graphics)
2137         return InvalidParameter;
2138
2139     if (image->type == ImageTypeBitmap && ((GpBitmap*)image)->hbitmap)
2140     {
2141         hdc = ((GpBitmap*)image)->hdc;
2142
2143         if(!hdc){
2144             hdc = CreateCompatibleDC(0);
2145             SelectObject(hdc, ((GpBitmap*)image)->hbitmap);
2146             ((GpBitmap*)image)->hdc = hdc;
2147         }
2148
2149         stat = GdipCreateFromHDC(hdc, graphics);
2150
2151         if (stat == Ok)
2152             (*graphics)->image = image;
2153     }
2154     else if (image->type == ImageTypeMetafile)
2155         stat = METAFILE_GetGraphicsContext((GpMetafile*)image, graphics);
2156     else
2157         stat = graphics_from_image(image, graphics);
2158
2159     return stat;
2160 }
2161
2162 GpStatus WINGDIPAPI GdipGetImageHeight(GpImage *image, UINT *height)
2163 {
2164     TRACE("%p %p\n", image, height);
2165
2166     if(!image || !height)
2167         return InvalidParameter;
2168
2169     if(image->type == ImageTypeMetafile){
2170         HDC hdc = GetDC(0);
2171         REAL res = (REAL)GetDeviceCaps(hdc, LOGPIXELSX);
2172
2173         ReleaseDC(0, hdc);
2174
2175         *height = roundr(convert_unit(res, ((GpMetafile*)image)->unit) *
2176                         ((GpMetafile*)image)->bounds.Height);
2177     }
2178     else if(image->type == ImageTypeBitmap)
2179         *height = ((GpBitmap*)image)->height;
2180     else
2181         *height = ipicture_pixel_height(image->picture);
2182
2183     TRACE("returning %d\n", *height);
2184
2185     return Ok;
2186 }
2187
2188 GpStatus WINGDIPAPI GdipGetImageHorizontalResolution(GpImage *image, REAL *res)
2189 {
2190     if(!image || !res)
2191         return InvalidParameter;
2192
2193     *res = image->xres;
2194
2195     TRACE("(%p) <-- %0.2f\n", image, *res);
2196
2197     return Ok;
2198 }
2199
2200 GpStatus WINGDIPAPI GdipGetImagePaletteSize(GpImage *image, INT *size)
2201 {
2202     TRACE("%p %p\n", image, size);
2203
2204     if(!image || !size)
2205         return InvalidParameter;
2206
2207     if (image->palette_count == 0)
2208         *size = sizeof(ColorPalette);
2209     else
2210         *size = sizeof(UINT)*2 + sizeof(ARGB)*image->palette_count;
2211
2212     TRACE("<-- %u\n", *size);
2213
2214     return Ok;
2215 }
2216
2217 /* FIXME: test this function for non-bitmap types */
2218 GpStatus WINGDIPAPI GdipGetImagePixelFormat(GpImage *image, PixelFormat *format)
2219 {
2220     TRACE("%p %p\n", image, format);
2221
2222     if(!image || !format)
2223         return InvalidParameter;
2224
2225     if(image->type != ImageTypeBitmap)
2226         *format = PixelFormat24bppRGB;
2227     else
2228         *format = ((GpBitmap*) image)->format;
2229
2230     return Ok;
2231 }
2232
2233 GpStatus WINGDIPAPI GdipGetImageRawFormat(GpImage *image, GUID *format)
2234 {
2235     TRACE("(%p, %p)\n", image, format);
2236
2237     if(!image || !format)
2238         return InvalidParameter;
2239
2240     memcpy(format, &image->format, sizeof(GUID));
2241
2242     return Ok;
2243 }
2244
2245 GpStatus WINGDIPAPI GdipGetImageType(GpImage *image, ImageType *type)
2246 {
2247     TRACE("%p %p\n", image, type);
2248
2249     if(!image || !type)
2250         return InvalidParameter;
2251
2252     *type = image->type;
2253
2254     return Ok;
2255 }
2256
2257 GpStatus WINGDIPAPI GdipGetImageVerticalResolution(GpImage *image, REAL *res)
2258 {
2259     if(!image || !res)
2260         return InvalidParameter;
2261
2262     *res = image->yres;
2263
2264     TRACE("(%p) <-- %0.2f\n", image, *res);
2265
2266     return Ok;
2267 }
2268
2269 GpStatus WINGDIPAPI GdipGetImageWidth(GpImage *image, UINT *width)
2270 {
2271     TRACE("%p %p\n", image, width);
2272
2273     if(!image || !width)
2274         return InvalidParameter;
2275
2276     if(image->type == ImageTypeMetafile){
2277         HDC hdc = GetDC(0);
2278         REAL res = (REAL)GetDeviceCaps(hdc, LOGPIXELSX);
2279
2280         ReleaseDC(0, hdc);
2281
2282         *width = roundr(convert_unit(res, ((GpMetafile*)image)->unit) *
2283                         ((GpMetafile*)image)->bounds.Width);
2284     }
2285     else if(image->type == ImageTypeBitmap)
2286         *width = ((GpBitmap*)image)->width;
2287     else
2288         *width = ipicture_pixel_width(image->picture);
2289
2290     TRACE("returning %d\n", *width);
2291
2292     return Ok;
2293 }
2294
2295 GpStatus WINGDIPAPI GdipGetMetafileHeaderFromMetafile(GpMetafile * metafile,
2296     MetafileHeader * header)
2297 {
2298     static int calls;
2299
2300     TRACE("(%p, %p)\n", metafile, header);
2301
2302     if(!metafile || !header)
2303         return InvalidParameter;
2304
2305     if(!(calls++))
2306         FIXME("not implemented\n");
2307
2308     memset(header, 0, sizeof(MetafileHeader));
2309
2310     return Ok;
2311 }
2312
2313 GpStatus WINGDIPAPI GdipGetMetafileHeaderFromEmf(HENHMETAFILE hEmf,
2314     MetafileHeader *header)
2315 {
2316     static int calls;
2317
2318     if(!hEmf || !header)
2319         return InvalidParameter;
2320
2321     if(!(calls++))
2322         FIXME("not implemented\n");
2323
2324     memset(header, 0, sizeof(MetafileHeader));
2325
2326     return Ok;
2327 }
2328
2329 GpStatus WINGDIPAPI GdipGetMetafileHeaderFromFile(GDIPCONST WCHAR *filename,
2330     MetafileHeader *header)
2331 {
2332     static int calls;
2333
2334     TRACE("(%s,%p)\n", debugstr_w(filename), header);
2335
2336     if(!filename || !header)
2337         return InvalidParameter;
2338
2339     if(!(calls++))
2340         FIXME("not implemented\n");
2341
2342     memset(header, 0, sizeof(MetafileHeader));
2343
2344     return Ok;
2345 }
2346
2347 GpStatus WINGDIPAPI GdipGetMetafileHeaderFromStream(IStream *stream,
2348     MetafileHeader *header)
2349 {
2350     static int calls;
2351
2352     TRACE("(%p,%p)\n", stream, header);
2353
2354     if(!stream || !header)
2355         return InvalidParameter;
2356
2357     if(!(calls++))
2358         FIXME("not implemented\n");
2359
2360     memset(header, 0, sizeof(MetafileHeader));
2361
2362     return Ok;
2363 }
2364
2365 GpStatus WINGDIPAPI GdipGetAllPropertyItems(GpImage *image, UINT size,
2366     UINT num, PropertyItem* items)
2367 {
2368     static int calls;
2369
2370     TRACE("(%p, %u, %u, %p)\n", image, size, num, items);
2371
2372     if(!(calls++))
2373         FIXME("not implemented\n");
2374
2375     return InvalidParameter;
2376 }
2377
2378 GpStatus WINGDIPAPI GdipGetPropertyCount(GpImage *image, UINT* num)
2379 {
2380     static int calls;
2381
2382     TRACE("(%p, %p)\n", image, num);
2383
2384     if(!(calls++))
2385         FIXME("not implemented\n");
2386
2387     *num = 0;
2388     return Ok;
2389 }
2390
2391 GpStatus WINGDIPAPI GdipGetPropertyIdList(GpImage *image, UINT num, PROPID* list)
2392 {
2393     static int calls;
2394
2395     TRACE("(%p, %u, %p)\n", image, num, list);
2396
2397     if(!(calls++))
2398         FIXME("not implemented\n");
2399
2400     return InvalidParameter;
2401 }
2402
2403 GpStatus WINGDIPAPI GdipGetPropertyItem(GpImage *image, PROPID id, UINT size,
2404     PropertyItem* buffer)
2405 {
2406     static int calls;
2407
2408     TRACE("(%p, %u, %u, %p)\n", image, id, size, buffer);
2409
2410     if(!(calls++))
2411         FIXME("not implemented\n");
2412
2413     return InvalidParameter;
2414 }
2415
2416 GpStatus WINGDIPAPI GdipGetPropertyItemSize(GpImage *image, PROPID pid,
2417     UINT* size)
2418 {
2419     static int calls;
2420
2421     TRACE("%p %x %p\n", image, pid, size);
2422
2423     if(!size || !image)
2424         return InvalidParameter;
2425
2426     if(!(calls++))
2427         FIXME("not implemented\n");
2428
2429     return NotImplemented;
2430 }
2431
2432 GpStatus WINGDIPAPI GdipGetPropertySize(GpImage *image, UINT* size, UINT* num)
2433 {
2434     static int calls;
2435
2436     TRACE("(%p,%p,%p)\n", image, size, num);
2437
2438     if(!(calls++))
2439         FIXME("not implemented\n");
2440
2441     return InvalidParameter;
2442 }
2443
2444 struct image_format_dimension
2445 {
2446     const GUID *format;
2447     const GUID *dimension;
2448 };
2449
2450 static struct image_format_dimension image_format_dimensions[] =
2451 {
2452     {&ImageFormatGIF, &FrameDimensionTime},
2453     {&ImageFormatIcon, &FrameDimensionResolution},
2454     {NULL}
2455 };
2456
2457 /* FIXME: Need to handle multi-framed images */
2458 GpStatus WINGDIPAPI GdipImageGetFrameCount(GpImage *image,
2459     GDIPCONST GUID* dimensionID, UINT* count)
2460 {
2461     static int calls;
2462
2463     TRACE("(%p,%s,%p)\n", image, debugstr_guid(dimensionID), count);
2464
2465     if(!image || !count)
2466         return InvalidParameter;
2467
2468     if(!(calls++))
2469         FIXME("returning frame count of 1\n");
2470
2471     *count = 1;
2472
2473     return Ok;
2474 }
2475
2476 GpStatus WINGDIPAPI GdipImageGetFrameDimensionsCount(GpImage *image,
2477     UINT* count)
2478 {
2479     TRACE("(%p, %p)\n", image, count);
2480
2481     /* Native gdiplus 1.1 does not yet support multiple frame dimensions. */
2482
2483     if(!image || !count)
2484         return InvalidParameter;
2485
2486     *count = 1;
2487
2488     return Ok;
2489 }
2490
2491 GpStatus WINGDIPAPI GdipImageGetFrameDimensionsList(GpImage* image,
2492     GUID* dimensionIDs, UINT count)
2493 {
2494     int i;
2495     const GUID *result=NULL;
2496
2497     TRACE("(%p,%p,%u)\n", image, dimensionIDs, count);
2498
2499     if(!image || !dimensionIDs || count != 1)
2500         return InvalidParameter;
2501
2502     for (i=0; image_format_dimensions[i].format; i++)
2503     {
2504         if (IsEqualGUID(&image->format, image_format_dimensions[i].format))
2505         {
2506             result = image_format_dimensions[i].dimension;
2507             break;
2508         }
2509     }
2510
2511     if (!result)
2512         result = &FrameDimensionPage;
2513
2514     memcpy(dimensionIDs, result, sizeof(GUID));
2515
2516     return Ok;
2517 }
2518
2519 GpStatus WINGDIPAPI GdipImageSelectActiveFrame(GpImage *image,
2520     GDIPCONST GUID* dimensionID, UINT frameidx)
2521 {
2522     static int calls;
2523
2524     TRACE("(%p, %s, %u)\n", image, debugstr_guid(dimensionID), frameidx);
2525
2526     if(!image || !dimensionID)
2527         return InvalidParameter;
2528
2529     if(!(calls++))
2530         FIXME("not implemented\n");
2531
2532     return Ok;
2533 }
2534
2535 GpStatus WINGDIPAPI GdipLoadImageFromFile(GDIPCONST WCHAR* filename,
2536                                           GpImage **image)
2537 {
2538     GpStatus stat;
2539     IStream *stream;
2540
2541     TRACE("(%s) %p\n", debugstr_w(filename), image);
2542
2543     if (!filename || !image)
2544         return InvalidParameter;
2545
2546     stat = GdipCreateStreamOnFile(filename, GENERIC_READ, &stream);
2547
2548     if (stat != Ok)
2549         return stat;
2550
2551     stat = GdipLoadImageFromStream(stream, image);
2552
2553     IStream_Release(stream);
2554
2555     return stat;
2556 }
2557
2558 /* FIXME: no icm handling */
2559 GpStatus WINGDIPAPI GdipLoadImageFromFileICM(GDIPCONST WCHAR* filename,GpImage **image)
2560 {
2561     TRACE("(%s) %p\n", debugstr_w(filename), image);
2562
2563     return GdipLoadImageFromFile(filename, image);
2564 }
2565
2566 static const WICPixelFormatGUID *wic_pixel_formats[] = {
2567     &GUID_WICPixelFormat16bppBGR555,
2568     &GUID_WICPixelFormat24bppBGR,
2569     &GUID_WICPixelFormat32bppBGR,
2570     &GUID_WICPixelFormat32bppBGRA,
2571     &GUID_WICPixelFormat32bppPBGRA,
2572     NULL
2573 };
2574
2575 static const PixelFormat wic_gdip_formats[] = {
2576     PixelFormat16bppRGB555,
2577     PixelFormat24bppRGB,
2578     PixelFormat32bppRGB,
2579     PixelFormat32bppARGB,
2580     PixelFormat32bppPARGB,
2581 };
2582
2583 static GpStatus decode_image_wic(IStream* stream, REFCLSID clsid, GpImage **image)
2584 {
2585     GpStatus status=Ok;
2586     GpBitmap *bitmap;
2587     HRESULT hr;
2588     IWICBitmapDecoder *decoder;
2589     IWICBitmapFrameDecode *frame;
2590     IWICBitmapSource *source=NULL;
2591     WICPixelFormatGUID wic_format;
2592     PixelFormat gdip_format=0;
2593     int i;
2594     UINT width, height;
2595     BitmapData lockeddata;
2596     WICRect wrc;
2597     HRESULT initresult;
2598
2599     initresult = CoInitialize(NULL);
2600
2601     hr = CoCreateInstance(clsid, NULL, CLSCTX_INPROC_SERVER,
2602         &IID_IWICBitmapDecoder, (void**)&decoder);
2603     if (FAILED(hr)) goto end;
2604
2605     hr = IWICBitmapDecoder_Initialize(decoder, (IStream*)stream, WICDecodeMetadataCacheOnLoad);
2606     if (SUCCEEDED(hr))
2607         hr = IWICBitmapDecoder_GetFrame(decoder, 0, &frame);
2608
2609     if (SUCCEEDED(hr)) /* got frame */
2610     {
2611         hr = IWICBitmapFrameDecode_GetPixelFormat(frame, &wic_format);
2612
2613         if (SUCCEEDED(hr))
2614         {
2615             for (i=0; wic_pixel_formats[i]; i++)
2616             {
2617                 if (IsEqualGUID(&wic_format, wic_pixel_formats[i]))
2618                 {
2619                     source = (IWICBitmapSource*)frame;
2620                     IWICBitmapSource_AddRef(source);
2621                     gdip_format = wic_gdip_formats[i];
2622                     break;
2623                 }
2624             }
2625             if (!source)
2626             {
2627                 /* unknown format; fall back on 32bppARGB */
2628                 hr = WICConvertBitmapSource(&GUID_WICPixelFormat32bppBGRA, (IWICBitmapSource*)frame, &source);
2629                 gdip_format = PixelFormat32bppARGB;
2630             }
2631         }
2632
2633         if (SUCCEEDED(hr)) /* got source */
2634         {
2635             hr = IWICBitmapSource_GetSize(source, &width, &height);
2636
2637             if (SUCCEEDED(hr))
2638                 status = GdipCreateBitmapFromScan0(width, height, 0, gdip_format,
2639                     NULL, &bitmap);
2640
2641             if (SUCCEEDED(hr) && status == Ok) /* created bitmap */
2642             {
2643                 status = GdipBitmapLockBits(bitmap, NULL, ImageLockModeWrite,
2644                     gdip_format, &lockeddata);
2645                 if (status == Ok) /* locked bitmap */
2646                 {
2647                     wrc.X = 0;
2648                     wrc.Width = width;
2649                     wrc.Height = 1;
2650                     for (i=0; i<height; i++)
2651                     {
2652                         wrc.Y = i;
2653                         hr = IWICBitmapSource_CopyPixels(source, &wrc, abs(lockeddata.Stride),
2654                             abs(lockeddata.Stride), (BYTE*)lockeddata.Scan0+lockeddata.Stride*i);
2655                         if (FAILED(hr)) break;
2656                     }
2657
2658                     GdipBitmapUnlockBits(bitmap, &lockeddata);
2659                 }
2660
2661                 if (SUCCEEDED(hr) && status == Ok)
2662                     *image = (GpImage*)bitmap;
2663                 else
2664                 {
2665                     *image = NULL;
2666                     GdipDisposeImage((GpImage*)bitmap);
2667                 }
2668
2669                 if (SUCCEEDED(hr) && status == Ok)
2670                 {
2671                     double dpix, dpiy;
2672                     hr = IWICBitmapSource_GetResolution(source, &dpix, &dpiy);
2673                     if (SUCCEEDED(hr))
2674                     {
2675                         bitmap->image.xres = dpix;
2676                         bitmap->image.yres = dpiy;
2677                     }
2678                     hr = S_OK;
2679                 }
2680             }
2681
2682             IWICBitmapSource_Release(source);
2683         }
2684
2685         IWICBitmapFrameDecode_Release(frame);
2686     }
2687
2688     IWICBitmapDecoder_Release(decoder);
2689
2690 end:
2691     if (SUCCEEDED(initresult)) CoUninitialize();
2692
2693     if (FAILED(hr) && status == Ok) status = hresult_to_status(hr);
2694
2695     if (status == Ok)
2696     {
2697         /* Native GDI+ used to be smarter, but since Win7 it just sets these flags. */
2698         bitmap->image.flags |= ImageFlagsReadOnly|ImageFlagsHasRealPixelSize|ImageFlagsHasRealDPI|ImageFlagsColorSpaceRGB;
2699     }
2700
2701     return status;
2702 }
2703
2704 static GpStatus decode_image_icon(IStream* stream, REFCLSID clsid, GpImage **image)
2705 {
2706     return decode_image_wic(stream, &CLSID_WICIcoDecoder, image);
2707 }
2708
2709 static GpStatus decode_image_bmp(IStream* stream, REFCLSID clsid, GpImage **image)
2710 {
2711     GpStatus status;
2712     GpBitmap* bitmap;
2713
2714     status = decode_image_wic(stream, &CLSID_WICBmpDecoder, image);
2715
2716     bitmap = (GpBitmap*)*image;
2717
2718     if (status == Ok && bitmap->format == PixelFormat32bppARGB)
2719     {
2720         /* WIC supports bmp files with alpha, but gdiplus does not */
2721         bitmap->format = PixelFormat32bppRGB;
2722     }
2723
2724     return status;
2725 }
2726
2727 static GpStatus decode_image_jpeg(IStream* stream, REFCLSID clsid, GpImage **image)
2728 {
2729     return decode_image_wic(stream, &CLSID_WICJpegDecoder, image);
2730 }
2731
2732 static GpStatus decode_image_png(IStream* stream, REFCLSID clsid, GpImage **image)
2733 {
2734     return decode_image_wic(stream, &CLSID_WICPngDecoder, image);
2735 }
2736
2737 static GpStatus decode_image_gif(IStream* stream, REFCLSID clsid, GpImage **image)
2738 {
2739     return decode_image_wic(stream, &CLSID_WICGifDecoder, image);
2740 }
2741
2742 static GpStatus decode_image_tiff(IStream* stream, REFCLSID clsid, GpImage **image)
2743 {
2744     return decode_image_wic(stream, &CLSID_WICTiffDecoder, image);
2745 }
2746
2747 static GpStatus decode_image_olepicture_metafile(IStream* stream, REFCLSID clsid, GpImage **image)
2748 {
2749     IPicture *pic;
2750
2751     TRACE("%p %p\n", stream, image);
2752
2753     if(!stream || !image)
2754         return InvalidParameter;
2755
2756     if(OleLoadPicture(stream, 0, FALSE, &IID_IPicture,
2757         (LPVOID*) &pic) != S_OK){
2758         TRACE("Could not load picture\n");
2759         return GenericError;
2760     }
2761
2762     /* FIXME: missing initialization code */
2763     *image = GdipAlloc(sizeof(GpMetafile));
2764     if(!*image) return OutOfMemory;
2765     (*image)->type = ImageTypeMetafile;
2766     (*image)->picture = pic;
2767     (*image)->flags   = ImageFlagsNone;
2768     (*image)->palette_flags = 0;
2769     (*image)->palette_count = 0;
2770     (*image)->palette_size = 0;
2771     (*image)->palette_entries = NULL;
2772
2773     TRACE("<-- %p\n", *image);
2774
2775     return Ok;
2776 }
2777
2778 typedef GpStatus (*encode_image_func)(GpImage *image, IStream* stream,
2779     GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params);
2780
2781 typedef GpStatus (*decode_image_func)(IStream *stream, REFCLSID clsid, GpImage** image);
2782
2783 typedef struct image_codec {
2784     ImageCodecInfo info;
2785     encode_image_func encode_func;
2786     decode_image_func decode_func;
2787 } image_codec;
2788
2789 typedef enum {
2790     BMP,
2791     JPEG,
2792     GIF,
2793     TIFF,
2794     EMF,
2795     WMF,
2796     PNG,
2797     ICO,
2798     NUM_CODECS
2799 } ImageFormat;
2800
2801 static const struct image_codec codecs[NUM_CODECS];
2802
2803 static GpStatus get_decoder_info(IStream* stream, const struct image_codec **result)
2804 {
2805     BYTE signature[8];
2806     const BYTE *pattern, *mask;
2807     LARGE_INTEGER seek;
2808     HRESULT hr;
2809     UINT bytesread;
2810     int i, j, sig;
2811
2812     /* seek to the start of the stream */
2813     seek.QuadPart = 0;
2814     hr = IStream_Seek(stream, seek, STREAM_SEEK_SET, NULL);
2815     if (FAILED(hr)) return hresult_to_status(hr);
2816
2817     /* read the first 8 bytes */
2818     /* FIXME: This assumes all codecs have signatures <= 8 bytes in length */
2819     hr = IStream_Read(stream, signature, 8, &bytesread);
2820     if (FAILED(hr)) return hresult_to_status(hr);
2821     if (hr == S_FALSE || bytesread == 0) return GenericError;
2822
2823     for (i = 0; i < NUM_CODECS; i++) {
2824         if ((codecs[i].info.Flags & ImageCodecFlagsDecoder) &&
2825             bytesread >= codecs[i].info.SigSize)
2826         {
2827             for (sig=0; sig<codecs[i].info.SigCount; sig++)
2828             {
2829                 pattern = &codecs[i].info.SigPattern[codecs[i].info.SigSize*sig];
2830                 mask = &codecs[i].info.SigMask[codecs[i].info.SigSize*sig];
2831                 for (j=0; j<codecs[i].info.SigSize; j++)
2832                     if ((signature[j] & mask[j]) != pattern[j])
2833                         break;
2834                 if (j == codecs[i].info.SigSize)
2835                 {
2836                     *result = &codecs[i];
2837                     return Ok;
2838                 }
2839             }
2840         }
2841     }
2842
2843     TRACE("no match for %i byte signature %x %x %x %x %x %x %x %x\n", bytesread,
2844         signature[0],signature[1],signature[2],signature[3],
2845         signature[4],signature[5],signature[6],signature[7]);
2846
2847     return GenericError;
2848 }
2849
2850 GpStatus WINGDIPAPI GdipLoadImageFromStream(IStream* stream, GpImage **image)
2851 {
2852     GpStatus stat;
2853     LARGE_INTEGER seek;
2854     HRESULT hr;
2855     const struct image_codec *codec=NULL;
2856
2857     /* choose an appropriate image decoder */
2858     stat = get_decoder_info(stream, &codec);
2859     if (stat != Ok) return stat;
2860
2861     /* seek to the start of the stream */
2862     seek.QuadPart = 0;
2863     hr = IStream_Seek(stream, seek, STREAM_SEEK_SET, NULL);
2864     if (FAILED(hr)) return hresult_to_status(hr);
2865
2866     /* call on the image decoder to do the real work */
2867     stat = codec->decode_func(stream, &codec->info.Clsid, image);
2868
2869     /* take note of the original data format */
2870     if (stat == Ok)
2871     {
2872         memcpy(&(*image)->format, &codec->info.FormatID, sizeof(GUID));
2873     }
2874
2875     return stat;
2876 }
2877
2878 /* FIXME: no ICM */
2879 GpStatus WINGDIPAPI GdipLoadImageFromStreamICM(IStream* stream, GpImage **image)
2880 {
2881     TRACE("%p %p\n", stream, image);
2882
2883     return GdipLoadImageFromStream(stream, image);
2884 }
2885
2886 GpStatus WINGDIPAPI GdipRemovePropertyItem(GpImage *image, PROPID propId)
2887 {
2888     static int calls;
2889
2890     TRACE("(%p,%u)\n", image, propId);
2891
2892     if(!image)
2893         return InvalidParameter;
2894
2895     if(!(calls++))
2896         FIXME("not implemented\n");
2897
2898     return NotImplemented;
2899 }
2900
2901 GpStatus WINGDIPAPI GdipSetPropertyItem(GpImage *image, GDIPCONST PropertyItem* item)
2902 {
2903     static int calls;
2904
2905     TRACE("(%p,%p)\n", image, item);
2906
2907     if(!(calls++))
2908         FIXME("not implemented\n");
2909
2910     return NotImplemented;
2911 }
2912
2913 GpStatus WINGDIPAPI GdipSaveImageToFile(GpImage *image, GDIPCONST WCHAR* filename,
2914                                         GDIPCONST CLSID *clsidEncoder,
2915                                         GDIPCONST EncoderParameters *encoderParams)
2916 {
2917     GpStatus stat;
2918     IStream *stream;
2919
2920     TRACE("%p (%s) %p %p\n", image, debugstr_w(filename), clsidEncoder, encoderParams);
2921
2922     if (!image || !filename|| !clsidEncoder)
2923         return InvalidParameter;
2924
2925     stat = GdipCreateStreamOnFile(filename, GENERIC_WRITE, &stream);
2926     if (stat != Ok)
2927         return GenericError;
2928
2929     stat = GdipSaveImageToStream(image, stream, clsidEncoder, encoderParams);
2930
2931     IStream_Release(stream);
2932     return stat;
2933 }
2934
2935 /*************************************************************************
2936  * Encoding functions -
2937  *   These functions encode an image in different image file formats.
2938  */
2939 #define BITMAP_FORMAT_BMP   0x4d42 /* "BM" */
2940 #define BITMAP_FORMAT_JPEG  0xd8ff
2941 #define BITMAP_FORMAT_GIF   0x4947
2942 #define BITMAP_FORMAT_PNG   0x5089
2943 #define BITMAP_FORMAT_APM   0xcdd7
2944
2945 static GpStatus encode_image_WIC(GpImage *image, IStream* stream,
2946     GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
2947 {
2948     GpStatus stat;
2949     GpBitmap *bitmap;
2950     IWICBitmapEncoder *encoder;
2951     IWICBitmapFrameEncode *frameencode;
2952     IPropertyBag2 *encoderoptions;
2953     HRESULT hr;
2954     UINT width, height;
2955     PixelFormat gdipformat=0;
2956     WICPixelFormatGUID wicformat;
2957     GpRect rc;
2958     BitmapData lockeddata;
2959     HRESULT initresult;
2960     UINT i;
2961
2962     if (image->type != ImageTypeBitmap)
2963         return GenericError;
2964
2965     bitmap = (GpBitmap*)image;
2966
2967     GdipGetImageWidth(image, &width);
2968     GdipGetImageHeight(image, &height);
2969
2970     rc.X = 0;
2971     rc.Y = 0;
2972     rc.Width = width;
2973     rc.Height = height;
2974
2975     initresult = CoInitialize(NULL);
2976
2977     hr = CoCreateInstance(clsid, NULL, CLSCTX_INPROC_SERVER,
2978         &IID_IWICBitmapEncoder, (void**)&encoder);
2979     if (FAILED(hr))
2980     {
2981         if (SUCCEEDED(initresult)) CoUninitialize();
2982         return hresult_to_status(hr);
2983     }
2984
2985     hr = IWICBitmapEncoder_Initialize(encoder, stream, WICBitmapEncoderNoCache);
2986
2987     if (SUCCEEDED(hr))
2988     {
2989         hr = IWICBitmapEncoder_CreateNewFrame(encoder, &frameencode, &encoderoptions);
2990     }
2991
2992     if (SUCCEEDED(hr)) /* created frame */
2993     {
2994         hr = IWICBitmapFrameEncode_Initialize(frameencode, encoderoptions);
2995
2996         if (SUCCEEDED(hr))
2997             hr = IWICBitmapFrameEncode_SetSize(frameencode, width, height);
2998
2999         if (SUCCEEDED(hr))
3000             /* FIXME: use the resolution from the image */
3001             hr = IWICBitmapFrameEncode_SetResolution(frameencode, 96.0, 96.0);
3002
3003         if (SUCCEEDED(hr))
3004         {
3005             for (i=0; wic_pixel_formats[i]; i++)
3006             {
3007                 if (wic_gdip_formats[i] == bitmap->format)
3008                     break;
3009             }
3010             if (wic_pixel_formats[i])
3011                 memcpy(&wicformat, wic_pixel_formats[i], sizeof(GUID));
3012             else
3013                 memcpy(&wicformat, &GUID_WICPixelFormat32bppBGRA, sizeof(GUID));
3014
3015             hr = IWICBitmapFrameEncode_SetPixelFormat(frameencode, &wicformat);
3016
3017             for (i=0; wic_pixel_formats[i]; i++)
3018             {
3019                 if (IsEqualGUID(&wicformat, wic_pixel_formats[i]))
3020                     break;
3021             }
3022             if (wic_pixel_formats[i])
3023                 gdipformat = wic_gdip_formats[i];
3024             else
3025             {
3026                 ERR("cannot provide pixel format %s\n", debugstr_guid(&wicformat));
3027                 hr = E_FAIL;
3028             }
3029         }
3030
3031         if (SUCCEEDED(hr))
3032         {
3033             stat = GdipBitmapLockBits(bitmap, &rc, ImageLockModeRead, gdipformat,
3034                 &lockeddata);
3035
3036             if (stat == Ok)
3037             {
3038                 UINT row_size = (lockeddata.Width * PIXELFORMATBPP(gdipformat) + 7)/8;
3039                 BYTE *row;
3040
3041                 /* write one row at a time in case stride is negative */
3042                 row = lockeddata.Scan0;
3043                 for (i=0; i<lockeddata.Height; i++)
3044                 {
3045                     hr = IWICBitmapFrameEncode_WritePixels(frameencode, 1, row_size, row_size, row);
3046                     if (FAILED(hr)) break;
3047                     row += lockeddata.Stride;
3048                 }
3049
3050                 GdipBitmapUnlockBits(bitmap, &lockeddata);
3051             }
3052             else
3053                 hr = E_FAIL;
3054         }
3055
3056         if (SUCCEEDED(hr))
3057             hr = IWICBitmapFrameEncode_Commit(frameencode);
3058
3059         IWICBitmapFrameEncode_Release(frameencode);
3060         IPropertyBag2_Release(encoderoptions);
3061     }
3062
3063     if (SUCCEEDED(hr))
3064         hr = IWICBitmapEncoder_Commit(encoder);
3065
3066     IWICBitmapEncoder_Release(encoder);
3067
3068     if (SUCCEEDED(initresult)) CoUninitialize();
3069
3070     return hresult_to_status(hr);
3071 }
3072
3073 static GpStatus encode_image_BMP(GpImage *image, IStream* stream,
3074     GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
3075 {
3076     return encode_image_WIC(image, stream, &CLSID_WICBmpEncoder, params);
3077 }
3078
3079 static GpStatus encode_image_tiff(GpImage *image, IStream* stream,
3080     GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
3081 {
3082     return encode_image_WIC(image, stream, &CLSID_WICTiffEncoder, params);
3083 }
3084
3085 static GpStatus encode_image_png(GpImage *image, IStream* stream,
3086     GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
3087 {
3088     return encode_image_WIC(image, stream, &CLSID_WICPngEncoder, params);
3089 }
3090
3091 static GpStatus encode_image_jpeg(GpImage *image, IStream* stream,
3092     GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
3093 {
3094     return encode_image_WIC(image, stream, &CLSID_WICJpegEncoder, params);
3095 }
3096
3097 /*****************************************************************************
3098  * GdipSaveImageToStream [GDIPLUS.@]
3099  */
3100 GpStatus WINGDIPAPI GdipSaveImageToStream(GpImage *image, IStream* stream,
3101     GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
3102 {
3103     GpStatus stat;
3104     encode_image_func encode_image;
3105     int i;
3106
3107     TRACE("%p %p %p %p\n", image, stream, clsid, params);
3108
3109     if(!image || !stream)
3110         return InvalidParameter;
3111
3112     /* select correct encoder */
3113     encode_image = NULL;
3114     for (i = 0; i < NUM_CODECS; i++) {
3115         if ((codecs[i].info.Flags & ImageCodecFlagsEncoder) &&
3116             IsEqualCLSID(clsid, &codecs[i].info.Clsid))
3117             encode_image = codecs[i].encode_func;
3118     }
3119     if (encode_image == NULL)
3120         return UnknownImageFormat;
3121
3122     stat = encode_image(image, stream, clsid, params);
3123
3124     return stat;
3125 }
3126
3127 /*****************************************************************************
3128  * GdipGetImagePalette [GDIPLUS.@]
3129  */
3130 GpStatus WINGDIPAPI GdipGetImagePalette(GpImage *image, ColorPalette *palette, INT size)
3131 {
3132     TRACE("(%p,%p,%i)\n", image, palette, size);
3133
3134     if (!image || !palette)
3135         return InvalidParameter;
3136
3137     if (size < (sizeof(UINT)*2+sizeof(ARGB)*image->palette_count))
3138     {
3139         TRACE("<-- InsufficientBuffer\n");
3140         return InsufficientBuffer;
3141     }
3142
3143     palette->Flags = image->palette_flags;
3144     palette->Count = image->palette_count;
3145     memcpy(palette->Entries, image->palette_entries, sizeof(ARGB)*image->palette_count);
3146
3147     return Ok;
3148 }
3149
3150 /*****************************************************************************
3151  * GdipSetImagePalette [GDIPLUS.@]
3152  */
3153 GpStatus WINGDIPAPI GdipSetImagePalette(GpImage *image,
3154     GDIPCONST ColorPalette *palette)
3155 {
3156     TRACE("(%p,%p)\n", image, palette);
3157
3158     if(!image || !palette || palette->Count > 256)
3159         return InvalidParameter;
3160
3161     if (palette->Count > image->palette_size)
3162     {
3163         ARGB *new_palette;
3164
3165         new_palette = GdipAlloc(sizeof(ARGB) * palette->Count);
3166         if (!new_palette) return OutOfMemory;
3167
3168         GdipFree(image->palette_entries);
3169         image->palette_entries = new_palette;
3170         image->palette_size = palette->Count;
3171     }
3172
3173     image->palette_flags = palette->Flags;
3174     image->palette_count = palette->Count;
3175     memcpy(image->palette_entries, palette->Entries, sizeof(ARGB)*palette->Count);
3176
3177     return Ok;
3178 }
3179
3180 /*************************************************************************
3181  * Encoders -
3182  *   Structures that represent which formats we support for encoding.
3183  */
3184
3185 /* ImageCodecInfo creation routines taken from libgdiplus */
3186 static const WCHAR bmp_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'B', 'M', 'P', 0}; /* Built-in BMP */
3187 static const WCHAR bmp_extension[] = {'*','.','B', 'M', 'P',';', '*','.', 'D','I', 'B',';', '*','.', 'R', 'L', 'E',0}; /* *.BMP;*.DIB;*.RLE */
3188 static const WCHAR bmp_mimetype[] = {'i', 'm', 'a','g', 'e', '/', 'b', 'm', 'p', 0}; /* image/bmp */
3189 static const WCHAR bmp_format[] = {'B', 'M', 'P', 0}; /* BMP */
3190 static const BYTE bmp_sig_pattern[] = { 0x42, 0x4D };
3191 static const BYTE bmp_sig_mask[] = { 0xFF, 0xFF };
3192
3193 static const WCHAR jpeg_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'J','P','E','G', 0};
3194 static const WCHAR jpeg_extension[] = {'*','.','J','P','G',';', '*','.','J','P','E','G',';', '*','.','J','P','E',';', '*','.','J','F','I','F',0};
3195 static const WCHAR jpeg_mimetype[] = {'i','m','a','g','e','/','j','p','e','g', 0};
3196 static const WCHAR jpeg_format[] = {'J','P','E','G',0};
3197 static const BYTE jpeg_sig_pattern[] = { 0xFF, 0xD8 };
3198 static const BYTE jpeg_sig_mask[] = { 0xFF, 0xFF };
3199
3200 static const WCHAR gif_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'G','I','F', 0};
3201 static const WCHAR gif_extension[] = {'*','.','G','I','F',0};
3202 static const WCHAR gif_mimetype[] = {'i','m','a','g','e','/','g','i','f', 0};
3203 static const WCHAR gif_format[] = {'G','I','F',0};
3204 static const BYTE gif_sig_pattern[4] = "GIF8";
3205 static const BYTE gif_sig_mask[] = { 0xFF, 0xFF, 0xFF, 0xFF };
3206
3207 static const WCHAR tiff_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'T','I','F','F', 0};
3208 static const WCHAR tiff_extension[] = {'*','.','T','I','F','F',';','*','.','T','I','F',0};
3209 static const WCHAR tiff_mimetype[] = {'i','m','a','g','e','/','t','i','f','f', 0};
3210 static const WCHAR tiff_format[] = {'T','I','F','F',0};
3211 static const BYTE tiff_sig_pattern[] = {0x49,0x49,42,0,0x4d,0x4d,0,42};
3212 static const BYTE tiff_sig_mask[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
3213
3214 static const WCHAR emf_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'E','M','F', 0};
3215 static const WCHAR emf_extension[] = {'*','.','E','M','F',0};
3216 static const WCHAR emf_mimetype[] = {'i','m','a','g','e','/','x','-','e','m','f', 0};
3217 static const WCHAR emf_format[] = {'E','M','F',0};
3218 static const BYTE emf_sig_pattern[] = { 0x01, 0x00, 0x00, 0x00 };
3219 static const BYTE emf_sig_mask[] = { 0xFF, 0xFF, 0xFF, 0xFF };
3220
3221 static const WCHAR wmf_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'W','M','F', 0};
3222 static const WCHAR wmf_extension[] = {'*','.','W','M','F',0};
3223 static const WCHAR wmf_mimetype[] = {'i','m','a','g','e','/','x','-','w','m','f', 0};
3224 static const WCHAR wmf_format[] = {'W','M','F',0};
3225 static const BYTE wmf_sig_pattern[] = { 0xd7, 0xcd };
3226 static const BYTE wmf_sig_mask[] = { 0xFF, 0xFF };
3227
3228 static const WCHAR png_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'P','N','G', 0};
3229 static const WCHAR png_extension[] = {'*','.','P','N','G',0};
3230 static const WCHAR png_mimetype[] = {'i','m','a','g','e','/','p','n','g', 0};
3231 static const WCHAR png_format[] = {'P','N','G',0};
3232 static const BYTE png_sig_pattern[] = { 137, 80, 78, 71, 13, 10, 26, 10, };
3233 static const BYTE png_sig_mask[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
3234
3235 static const WCHAR ico_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'I','C','O', 0};
3236 static const WCHAR ico_extension[] = {'*','.','I','C','O',0};
3237 static const WCHAR ico_mimetype[] = {'i','m','a','g','e','/','x','-','i','c','o','n', 0};
3238 static const WCHAR ico_format[] = {'I','C','O',0};
3239 static const BYTE ico_sig_pattern[] = { 0x00, 0x00, 0x01, 0x00 };
3240 static const BYTE ico_sig_mask[] = { 0xFF, 0xFF, 0xFF, 0xFF };
3241
3242 static const struct image_codec codecs[NUM_CODECS] = {
3243     {
3244         { /* BMP */
3245             /* Clsid */              { 0x557cf400, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3246             /* FormatID */           { 0xb96b3cabU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3247             /* CodecName */          bmp_codecname,
3248             /* DllName */            NULL,
3249             /* FormatDescription */  bmp_format,
3250             /* FilenameExtension */  bmp_extension,
3251             /* MimeType */           bmp_mimetype,
3252             /* Flags */              ImageCodecFlagsEncoder | ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
3253             /* Version */            1,
3254             /* SigCount */           1,
3255             /* SigSize */            2,
3256             /* SigPattern */         bmp_sig_pattern,
3257             /* SigMask */            bmp_sig_mask,
3258         },
3259         encode_image_BMP,
3260         decode_image_bmp
3261     },
3262     {
3263         { /* JPEG */
3264             /* Clsid */              { 0x557cf401, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3265             /* FormatID */           { 0xb96b3caeU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3266             /* CodecName */          jpeg_codecname,
3267             /* DllName */            NULL,
3268             /* FormatDescription */  jpeg_format,
3269             /* FilenameExtension */  jpeg_extension,
3270             /* MimeType */           jpeg_mimetype,
3271             /* Flags */              ImageCodecFlagsEncoder | ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
3272             /* Version */            1,
3273             /* SigCount */           1,
3274             /* SigSize */            2,
3275             /* SigPattern */         jpeg_sig_pattern,
3276             /* SigMask */            jpeg_sig_mask,
3277         },
3278         encode_image_jpeg,
3279         decode_image_jpeg
3280     },
3281     {
3282         { /* GIF */
3283             /* Clsid */              { 0x557cf402, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3284             /* FormatID */           { 0xb96b3cb0U, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3285             /* CodecName */          gif_codecname,
3286             /* DllName */            NULL,
3287             /* FormatDescription */  gif_format,
3288             /* FilenameExtension */  gif_extension,
3289             /* MimeType */           gif_mimetype,
3290             /* Flags */              ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
3291             /* Version */            1,
3292             /* SigCount */           1,
3293             /* SigSize */            4,
3294             /* SigPattern */         gif_sig_pattern,
3295             /* SigMask */            gif_sig_mask,
3296         },
3297         NULL,
3298         decode_image_gif
3299     },
3300     {
3301         { /* TIFF */
3302             /* Clsid */              { 0x557cf405, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3303             /* FormatID */           { 0xb96b3cb1U, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3304             /* CodecName */          tiff_codecname,
3305             /* DllName */            NULL,
3306             /* FormatDescription */  tiff_format,
3307             /* FilenameExtension */  tiff_extension,
3308             /* MimeType */           tiff_mimetype,
3309             /* Flags */              ImageCodecFlagsDecoder | ImageCodecFlagsEncoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
3310             /* Version */            1,
3311             /* SigCount */           2,
3312             /* SigSize */            4,
3313             /* SigPattern */         tiff_sig_pattern,
3314             /* SigMask */            tiff_sig_mask,
3315         },
3316         encode_image_tiff,
3317         decode_image_tiff
3318     },
3319     {
3320         { /* EMF */
3321             /* Clsid */              { 0x557cf403, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3322             /* FormatID */           { 0xb96b3cacU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3323             /* CodecName */          emf_codecname,
3324             /* DllName */            NULL,
3325             /* FormatDescription */  emf_format,
3326             /* FilenameExtension */  emf_extension,
3327             /* MimeType */           emf_mimetype,
3328             /* Flags */              ImageCodecFlagsDecoder | ImageCodecFlagsSupportVector | ImageCodecFlagsBuiltin,
3329             /* Version */            1,
3330             /* SigCount */           1,
3331             /* SigSize */            4,
3332             /* SigPattern */         emf_sig_pattern,
3333             /* SigMask */            emf_sig_mask,
3334         },
3335         NULL,
3336         decode_image_olepicture_metafile
3337     },
3338     {
3339         { /* WMF */
3340             /* Clsid */              { 0x557cf404, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3341             /* FormatID */           { 0xb96b3cadU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3342             /* CodecName */          wmf_codecname,
3343             /* DllName */            NULL,
3344             /* FormatDescription */  wmf_format,
3345             /* FilenameExtension */  wmf_extension,
3346             /* MimeType */           wmf_mimetype,
3347             /* Flags */              ImageCodecFlagsDecoder | ImageCodecFlagsSupportVector | ImageCodecFlagsBuiltin,
3348             /* Version */            1,
3349             /* SigCount */           1,
3350             /* SigSize */            2,
3351             /* SigPattern */         wmf_sig_pattern,
3352             /* SigMask */            wmf_sig_mask,
3353         },
3354         NULL,
3355         decode_image_olepicture_metafile
3356     },
3357     {
3358         { /* PNG */
3359             /* Clsid */              { 0x557cf406, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3360             /* FormatID */           { 0xb96b3cafU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3361             /* CodecName */          png_codecname,
3362             /* DllName */            NULL,
3363             /* FormatDescription */  png_format,
3364             /* FilenameExtension */  png_extension,
3365             /* MimeType */           png_mimetype,
3366             /* Flags */              ImageCodecFlagsEncoder | ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
3367             /* Version */            1,
3368             /* SigCount */           1,
3369             /* SigSize */            8,
3370             /* SigPattern */         png_sig_pattern,
3371             /* SigMask */            png_sig_mask,
3372         },
3373         encode_image_png,
3374         decode_image_png
3375     },
3376     {
3377         { /* ICO */
3378             /* Clsid */              { 0x557cf407, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3379             /* FormatID */           { 0xb96b3cabU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3380             /* CodecName */          ico_codecname,
3381             /* DllName */            NULL,
3382             /* FormatDescription */  ico_format,
3383             /* FilenameExtension */  ico_extension,
3384             /* MimeType */           ico_mimetype,
3385             /* Flags */              ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
3386             /* Version */            1,
3387             /* SigCount */           1,
3388             /* SigSize */            4,
3389             /* SigPattern */         ico_sig_pattern,
3390             /* SigMask */            ico_sig_mask,
3391         },
3392         NULL,
3393         decode_image_icon
3394     },
3395 };
3396
3397 /*****************************************************************************
3398  * GdipGetImageDecodersSize [GDIPLUS.@]
3399  */
3400 GpStatus WINGDIPAPI GdipGetImageDecodersSize(UINT *numDecoders, UINT *size)
3401 {
3402     int decoder_count=0;
3403     int i;
3404     TRACE("%p %p\n", numDecoders, size);
3405
3406     if (!numDecoders || !size)
3407         return InvalidParameter;
3408
3409     for (i=0; i<NUM_CODECS; i++)
3410     {
3411         if (codecs[i].info.Flags & ImageCodecFlagsDecoder)
3412             decoder_count++;
3413     }
3414
3415     *numDecoders = decoder_count;
3416     *size = decoder_count * sizeof(ImageCodecInfo);
3417
3418     return Ok;
3419 }
3420
3421 /*****************************************************************************
3422  * GdipGetImageDecoders [GDIPLUS.@]
3423  */
3424 GpStatus WINGDIPAPI GdipGetImageDecoders(UINT numDecoders, UINT size, ImageCodecInfo *decoders)
3425 {
3426     int i, decoder_count=0;
3427     TRACE("%u %u %p\n", numDecoders, size, decoders);
3428
3429     if (!decoders ||
3430         size != numDecoders * sizeof(ImageCodecInfo))
3431         return GenericError;
3432
3433     for (i=0; i<NUM_CODECS; i++)
3434     {
3435         if (codecs[i].info.Flags & ImageCodecFlagsDecoder)
3436         {
3437             if (decoder_count == numDecoders) return GenericError;
3438             memcpy(&decoders[decoder_count], &codecs[i].info, sizeof(ImageCodecInfo));
3439             decoder_count++;
3440         }
3441     }
3442
3443     if (decoder_count < numDecoders) return GenericError;
3444
3445     return Ok;
3446 }
3447
3448 /*****************************************************************************
3449  * GdipGetImageEncodersSize [GDIPLUS.@]
3450  */
3451 GpStatus WINGDIPAPI GdipGetImageEncodersSize(UINT *numEncoders, UINT *size)
3452 {
3453     int encoder_count=0;
3454     int i;
3455     TRACE("%p %p\n", numEncoders, size);
3456
3457     if (!numEncoders || !size)
3458         return InvalidParameter;
3459
3460     for (i=0; i<NUM_CODECS; i++)
3461     {
3462         if (codecs[i].info.Flags & ImageCodecFlagsEncoder)
3463             encoder_count++;
3464     }
3465
3466     *numEncoders = encoder_count;
3467     *size = encoder_count * sizeof(ImageCodecInfo);
3468
3469     return Ok;
3470 }
3471
3472 /*****************************************************************************
3473  * GdipGetImageEncoders [GDIPLUS.@]
3474  */
3475 GpStatus WINGDIPAPI GdipGetImageEncoders(UINT numEncoders, UINT size, ImageCodecInfo *encoders)
3476 {
3477     int i, encoder_count=0;
3478     TRACE("%u %u %p\n", numEncoders, size, encoders);
3479
3480     if (!encoders ||
3481         size != numEncoders * sizeof(ImageCodecInfo))
3482         return GenericError;
3483
3484     for (i=0; i<NUM_CODECS; i++)
3485     {
3486         if (codecs[i].info.Flags & ImageCodecFlagsEncoder)
3487         {
3488             if (encoder_count == numEncoders) return GenericError;
3489             memcpy(&encoders[encoder_count], &codecs[i].info, sizeof(ImageCodecInfo));
3490             encoder_count++;
3491         }
3492     }
3493
3494     if (encoder_count < numEncoders) return GenericError;
3495
3496     return Ok;
3497 }
3498
3499 GpStatus WINGDIPAPI GdipGetEncoderParameterListSize(GpImage *image,
3500     GDIPCONST CLSID* clsidEncoder, UINT *size)
3501 {
3502     static int calls;
3503
3504     TRACE("(%p,%s,%p)\n", image, debugstr_guid(clsidEncoder), size);
3505
3506     if(!(calls++))
3507         FIXME("not implemented\n");
3508
3509     *size = 0;
3510
3511     return NotImplemented;
3512 }
3513
3514 static PixelFormat get_16bpp_format(HBITMAP hbm)
3515 {
3516     BITMAPV4HEADER bmh;
3517     HDC hdc;
3518     PixelFormat result;
3519
3520     hdc = CreateCompatibleDC(NULL);
3521
3522     memset(&bmh, 0, sizeof(bmh));
3523     bmh.bV4Size = sizeof(bmh);
3524     bmh.bV4Width = 1;
3525     bmh.bV4Height = 1;
3526     bmh.bV4V4Compression = BI_BITFIELDS;
3527     bmh.bV4BitCount = 16;
3528
3529     GetDIBits(hdc, hbm, 0, 0, NULL, (BITMAPINFO*)&bmh, DIB_RGB_COLORS);
3530
3531     if (bmh.bV4RedMask == 0x7c00 &&
3532         bmh.bV4GreenMask == 0x3e0 &&
3533         bmh.bV4BlueMask == 0x1f)
3534     {
3535         result = PixelFormat16bppRGB555;
3536     }
3537     else if (bmh.bV4RedMask == 0xf800 &&
3538         bmh.bV4GreenMask == 0x7e0 &&
3539         bmh.bV4BlueMask == 0x1f)
3540     {
3541         result = PixelFormat16bppRGB565;
3542     }
3543     else
3544     {
3545         FIXME("unrecognized bitfields %x,%x,%x\n", bmh.bV4RedMask,
3546             bmh.bV4GreenMask, bmh.bV4BlueMask);
3547         result = PixelFormatUndefined;
3548     }
3549
3550     DeleteDC(hdc);
3551
3552     return result;
3553 }
3554
3555 /*****************************************************************************
3556  * GdipCreateBitmapFromHBITMAP [GDIPLUS.@]
3557  */
3558 GpStatus WINGDIPAPI GdipCreateBitmapFromHBITMAP(HBITMAP hbm, HPALETTE hpal, GpBitmap** bitmap)
3559 {
3560     BITMAP bm;
3561     GpStatus retval;
3562     PixelFormat format;
3563     BitmapData lockeddata;
3564     INT y;
3565
3566     TRACE("%p %p %p\n", hbm, hpal, bitmap);
3567
3568     if(!hbm || !bitmap)
3569         return InvalidParameter;
3570
3571     if (GetObjectA(hbm, sizeof(bm), &bm) != sizeof(bm))
3572             return InvalidParameter;
3573
3574     /* TODO: Figure out the correct format for 16, 32, 64 bpp */
3575     switch(bm.bmBitsPixel) {
3576         case 1:
3577             format = PixelFormat1bppIndexed;
3578             break;
3579         case 4:
3580             format = PixelFormat4bppIndexed;
3581             break;
3582         case 8:
3583             format = PixelFormat8bppIndexed;
3584             break;
3585         case 16:
3586             format = get_16bpp_format(hbm);
3587             if (format == PixelFormatUndefined)
3588                 return InvalidParameter;
3589             break;
3590         case 24:
3591             format = PixelFormat24bppRGB;
3592             break;
3593         case 32:
3594             format = PixelFormat32bppRGB;
3595             break;
3596         case 48:
3597             format = PixelFormat48bppRGB;
3598             break;
3599         default:
3600             FIXME("don't know how to handle %d bpp\n", bm.bmBitsPixel);
3601             return InvalidParameter;
3602     }
3603
3604     retval = GdipCreateBitmapFromScan0(bm.bmWidth, bm.bmHeight, 0,
3605         format, NULL, bitmap);
3606
3607     if (retval == Ok)
3608     {
3609         retval = GdipBitmapLockBits(*bitmap, NULL, ImageLockModeWrite,
3610             format, &lockeddata);
3611         if (retval == Ok)
3612         {
3613             if (bm.bmBits)
3614             {
3615                 for (y=0; y<bm.bmHeight; y++)
3616                 {
3617                     memcpy((BYTE*)lockeddata.Scan0+lockeddata.Stride*y,
3618                            (BYTE*)bm.bmBits+bm.bmWidthBytes*(bm.bmHeight-1-y),
3619                            bm.bmWidthBytes);
3620                 }
3621             }
3622             else
3623             {
3624                 HDC hdc;
3625                 HBITMAP oldhbm;
3626                 BITMAPINFO *pbmi;
3627                 INT src_height, dst_stride;
3628                 BYTE *dst_bits;
3629
3630                 hdc = CreateCompatibleDC(NULL);
3631                 oldhbm = SelectObject(hdc, hbm);
3632
3633                 pbmi = GdipAlloc(sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
3634
3635                 if (pbmi)
3636                 {
3637                     pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
3638                     pbmi->bmiHeader.biBitCount = 0;
3639
3640                     GetDIBits(hdc, hbm, 0, 0, NULL, pbmi, DIB_RGB_COLORS);
3641
3642                     src_height = abs(pbmi->bmiHeader.biHeight);
3643
3644                     if (pbmi->bmiHeader.biHeight > 0)
3645                     {
3646                         dst_bits = (BYTE*)lockeddata.Scan0+lockeddata.Stride*(src_height-1);
3647                         dst_stride = -lockeddata.Stride;
3648                     }
3649                     else
3650                     {
3651                         dst_bits = lockeddata.Scan0;
3652                         dst_stride = lockeddata.Stride;
3653                     }
3654
3655                     for (y=0; y<src_height; y++)
3656                     {
3657                         GetDIBits(hdc, hbm, y, 1, dst_bits+dst_stride*y,
3658                             pbmi, DIB_RGB_COLORS);
3659                     }
3660
3661                     GdipFree(pbmi);
3662                 }
3663                 else
3664                     retval = OutOfMemory;
3665
3666                 SelectObject(hdc, oldhbm);
3667                 DeleteDC(hdc);
3668             }
3669
3670             GdipBitmapUnlockBits(*bitmap, &lockeddata);
3671         }
3672
3673         if (retval == Ok && hpal)
3674         {
3675             WORD num_palette_entries;
3676             PALETTEENTRY *palette_entries=NULL;
3677             ColorPalette *palette=NULL;
3678             int i;
3679
3680             if (!GetObjectW(hpal, sizeof(num_palette_entries), &num_palette_entries))
3681                 retval = GenericError;
3682
3683             if (retval == Ok)
3684             {
3685                 palette_entries = GdipAlloc(sizeof(PALETTEENTRY) * num_palette_entries);
3686                 palette = GdipAlloc(sizeof(ColorPalette) + sizeof(ARGB) * (num_palette_entries-1));
3687
3688                 if (!palette_entries || !palette)
3689                     retval = OutOfMemory;
3690             }
3691
3692             if (retval == Ok)
3693             {
3694                 if (!GetPaletteEntries(hpal, 0, num_palette_entries, palette_entries))
3695                     retval = GenericError;
3696             }
3697
3698             if (retval == Ok)
3699             {
3700                 palette->Flags = 0;
3701                 palette->Count = num_palette_entries;
3702
3703                 for (i=0; i<num_palette_entries; i++)
3704                 {
3705                     PALETTEENTRY * entry = &palette_entries[i];
3706                     palette->Entries[i] = 0xff000000 | entry->peRed << 16 |
3707                         entry->peGreen << 8 | entry->peBlue;
3708                 }
3709
3710                 retval = GdipSetImagePalette((GpImage*)*bitmap, palette);
3711             }
3712
3713             GdipFree(palette_entries);
3714             GdipFree(palette);
3715         }
3716
3717         if (retval != Ok)
3718         {
3719             GdipDisposeImage((GpImage*)*bitmap);
3720             *bitmap = NULL;
3721         }
3722     }
3723
3724     return retval;
3725 }
3726
3727 GpStatus WINGDIPAPI GdipDeleteEffect(CGpEffect *effect)
3728 {
3729     FIXME("(%p): stub\n", effect);
3730     /* note: According to Jose Roca's GDI+ Docs, this is not implemented
3731      * in Windows's gdiplus */
3732     return NotImplemented;
3733 }
3734
3735 /*****************************************************************************
3736  * GdipSetEffectParameters [GDIPLUS.@]
3737  */
3738 GpStatus WINGDIPAPI GdipSetEffectParameters(CGpEffect *effect,
3739     const VOID *params, const UINT size)
3740 {
3741     static int calls;
3742
3743     TRACE("(%p,%p,%u)\n", effect, params, size);
3744
3745     if(!(calls++))
3746         FIXME("not implemented\n");
3747
3748     return NotImplemented;
3749 }
3750
3751 /*****************************************************************************
3752  * GdipGetImageFlags [GDIPLUS.@]
3753  */
3754 GpStatus WINGDIPAPI GdipGetImageFlags(GpImage *image, UINT *flags)
3755 {
3756     TRACE("%p %p\n", image, flags);
3757
3758     if(!image || !flags)
3759         return InvalidParameter;
3760
3761     *flags = image->flags;
3762
3763     return Ok;
3764 }
3765
3766 GpStatus WINGDIPAPI GdipTestControl(GpTestControlEnum control, void *param)
3767 {
3768     TRACE("(%d, %p)\n", control, param);
3769
3770     switch(control){
3771         case TestControlForceBilinear:
3772             if(param)
3773                 FIXME("TestControlForceBilinear not handled\n");
3774             break;
3775         case TestControlNoICM:
3776             if(param)
3777                 FIXME("TestControlNoICM not handled\n");
3778             break;
3779         case TestControlGetBuildNumber:
3780             *((DWORD*)param) = 3102;
3781             break;
3782     }
3783
3784     return Ok;
3785 }
3786
3787 GpStatus WINGDIPAPI GdipRecordMetafileFileName(GDIPCONST WCHAR* fileName,
3788                             HDC hdc, EmfType type, GDIPCONST GpRectF *pFrameRect,
3789                             MetafileFrameUnit frameUnit, GDIPCONST WCHAR *desc,
3790                             GpMetafile **metafile)
3791 {
3792     FIXME("%s %p %d %p %d %s %p stub!\n", debugstr_w(fileName), hdc, type, pFrameRect,
3793                                  frameUnit, debugstr_w(desc), metafile);
3794
3795     return NotImplemented;
3796 }
3797
3798 GpStatus WINGDIPAPI GdipRecordMetafileFileNameI(GDIPCONST WCHAR* fileName, HDC hdc, EmfType type,
3799                             GDIPCONST GpRect *pFrameRect, MetafileFrameUnit frameUnit,
3800                             GDIPCONST WCHAR *desc, GpMetafile **metafile)
3801 {
3802     FIXME("%s %p %d %p %d %s %p stub!\n", debugstr_w(fileName), hdc, type, pFrameRect,
3803                                  frameUnit, debugstr_w(desc), metafile);
3804
3805     return NotImplemented;
3806 }
3807
3808 GpStatus WINGDIPAPI GdipImageForceValidation(GpImage *image)
3809 {
3810     TRACE("%p\n", image);
3811
3812     return Ok;
3813 }
3814
3815 /*****************************************************************************
3816  * GdipGetImageThumbnail [GDIPLUS.@]
3817  */
3818 GpStatus WINGDIPAPI GdipGetImageThumbnail(GpImage *image, UINT width, UINT height,
3819                             GpImage **ret_image, GetThumbnailImageAbort cb,
3820                             VOID * cb_data)
3821 {
3822     GpStatus stat;
3823     GpGraphics *graphics;
3824     UINT srcwidth, srcheight;
3825
3826     TRACE("(%p %u %u %p %p %p)\n",
3827         image, width, height, ret_image, cb, cb_data);
3828
3829     if (!image || !ret_image)
3830         return InvalidParameter;
3831
3832     if (!width) width = 120;
3833     if (!height) height = 120;
3834
3835     GdipGetImageWidth(image, &srcwidth);
3836     GdipGetImageHeight(image, &srcheight);
3837
3838     stat = GdipCreateBitmapFromScan0(width, height, 0, PixelFormat32bppARGB,
3839         NULL, (GpBitmap**)ret_image);
3840
3841     if (stat == Ok)
3842     {
3843         stat = GdipGetImageGraphicsContext(*ret_image, &graphics);
3844
3845         if (stat == Ok)
3846         {
3847             stat = GdipDrawImageRectRectI(graphics, image,
3848                 0, 0, width, height, 0, 0, srcwidth, srcheight, UnitPixel,
3849                 NULL, NULL, NULL);
3850
3851             GdipDeleteGraphics(graphics);
3852         }
3853
3854         if (stat != Ok)
3855         {
3856             GdipDisposeImage(*ret_image);
3857             *ret_image = NULL;
3858         }
3859     }
3860
3861     return stat;
3862 }
3863
3864 /*****************************************************************************
3865  * GdipImageRotateFlip [GDIPLUS.@]
3866  */
3867 GpStatus WINGDIPAPI GdipImageRotateFlip(GpImage *image, RotateFlipType type)
3868 {
3869     GpBitmap *new_bitmap;
3870     GpBitmap *bitmap;
3871     int bpp, bytesperpixel;
3872     int rotate_90, flip_x, flip_y;
3873     int src_x_offset, src_y_offset;
3874     LPBYTE src_origin;
3875     UINT x, y, width, height;
3876     BitmapData src_lock, dst_lock;
3877     GpStatus stat;
3878
3879     TRACE("(%p, %u)\n", image, type);
3880
3881     rotate_90 = type&1;
3882     flip_x = (type&6) == 2 || (type&6) == 4;
3883     flip_y = (type&3) == 1 || (type&3) == 2;
3884
3885     if (image->type != ImageTypeBitmap)
3886     {
3887         FIXME("Not implemented for type %i\n", image->type);
3888         return NotImplemented;
3889     }
3890
3891     bitmap = (GpBitmap*)image;
3892     bpp = PIXELFORMATBPP(bitmap->format);
3893
3894     if (bpp < 8)
3895     {
3896         FIXME("Not implemented for %i bit images\n", bpp);
3897         return NotImplemented;
3898     }
3899
3900     if (rotate_90)
3901     {
3902         width = bitmap->height;
3903         height = bitmap->width;
3904     }
3905     else
3906     {
3907         width = bitmap->width;
3908         height = bitmap->height;
3909     }
3910
3911     bytesperpixel = bpp/8;
3912
3913     stat = GdipCreateBitmapFromScan0(width, height, 0, bitmap->format, NULL, &new_bitmap);
3914
3915     if (stat != Ok)
3916         return stat;
3917
3918     stat = GdipBitmapLockBits(bitmap, NULL, ImageLockModeRead, bitmap->format, &src_lock);
3919
3920     if (stat == Ok)
3921     {
3922         stat = GdipBitmapLockBits(new_bitmap, NULL, ImageLockModeWrite, bitmap->format, &dst_lock);
3923
3924         if (stat == Ok)
3925         {
3926             LPBYTE src_row, src_pixel;
3927             LPBYTE dst_row, dst_pixel;
3928
3929             src_origin = src_lock.Scan0;
3930             if (flip_x) src_origin += bytesperpixel * (bitmap->width - 1);
3931             if (flip_y) src_origin += src_lock.Stride * (bitmap->height - 1);
3932
3933             if (rotate_90)
3934             {
3935                 if (flip_y) src_x_offset = -src_lock.Stride;
3936                 else src_x_offset = src_lock.Stride;
3937                 if (flip_x) src_y_offset = -bytesperpixel;
3938                 else src_y_offset = bytesperpixel;
3939             }
3940             else
3941             {
3942                 if (flip_x) src_x_offset = -bytesperpixel;
3943                 else src_x_offset = bytesperpixel;
3944                 if (flip_y) src_y_offset = -src_lock.Stride;
3945                 else src_y_offset = src_lock.Stride;
3946             }
3947
3948             src_row = src_origin;
3949             dst_row = dst_lock.Scan0;
3950             for (y=0; y<height; y++)
3951             {
3952                 src_pixel = src_row;
3953                 dst_pixel = dst_row;
3954                 for (x=0; x<width; x++)
3955                 {
3956                     /* FIXME: This could probably be faster without memcpy. */
3957                     memcpy(dst_pixel, src_pixel, bytesperpixel);
3958                     dst_pixel += bytesperpixel;
3959                     src_pixel += src_x_offset;
3960                 }
3961                 src_row += src_y_offset;
3962                 dst_row += dst_lock.Stride;
3963             }
3964
3965             GdipBitmapUnlockBits(new_bitmap, &dst_lock);
3966         }
3967
3968         GdipBitmapUnlockBits(bitmap, &src_lock);
3969     }
3970
3971     if (stat == Ok)
3972         move_bitmap(bitmap, new_bitmap, FALSE);
3973     else
3974         GdipDisposeImage((GpImage*)new_bitmap);
3975
3976     return stat;
3977 }
3978
3979 /*****************************************************************************
3980  * GdipConvertToEmfPlusToFile [GDIPLUS.@]
3981  */
3982
3983 GpStatus WINGDIPAPI GdipConvertToEmfPlusToFile(const GpGraphics* refGraphics,
3984                                                GpMetafile* metafile, BOOL* conversionSuccess,
3985                                                const WCHAR* filename, EmfType emfType,
3986                                                const WCHAR* description, GpMetafile** out_metafile)
3987 {
3988     FIXME("stub: %p, %p, %p, %p, %u, %p, %p\n", refGraphics, metafile, conversionSuccess, filename, emfType, description, out_metafile);
3989     return NotImplemented;
3990 }