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