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     if (!info || !bits || !bitmap)
1224         return InvalidParameter;
1225
1226     height = abs(info->bmiHeader.biHeight);
1227     stride = ((info->bmiHeader.biWidth * info->bmiHeader.biBitCount + 31) >> 3) & ~3;
1228
1229     if(info->bmiHeader.biHeight > 0) /* bottom-up */
1230     {
1231         bits = (BYTE*)bits + (height - 1) * stride;
1232         stride = -stride;
1233     }
1234
1235     switch(info->bmiHeader.biBitCount) {
1236     case 1:
1237         format = PixelFormat1bppIndexed;
1238         break;
1239     case 4:
1240         format = PixelFormat4bppIndexed;
1241         break;
1242     case 8:
1243         format = PixelFormat8bppIndexed;
1244         break;
1245     case 16:
1246         format = PixelFormat16bppRGB555;
1247         break;
1248     case 24:
1249         format = PixelFormat24bppRGB;
1250         break;
1251     case 32:
1252         format = PixelFormat32bppRGB;
1253         break;
1254     default:
1255         FIXME("don't know how to handle %d bpp\n", info->bmiHeader.biBitCount);
1256         *bitmap = NULL;
1257         return InvalidParameter;
1258     }
1259
1260     return GdipCreateBitmapFromScan0(info->bmiHeader.biWidth, height, stride, format,
1261                                      bits, bitmap);
1262
1263 }
1264
1265 /* FIXME: no icm */
1266 GpStatus WINGDIPAPI GdipCreateBitmapFromFileICM(GDIPCONST WCHAR* filename,
1267     GpBitmap **bitmap)
1268 {
1269     TRACE("(%s) %p\n", debugstr_w(filename), bitmap);
1270
1271     return GdipCreateBitmapFromFile(filename, bitmap);
1272 }
1273
1274 GpStatus WINGDIPAPI GdipCreateBitmapFromResource(HINSTANCE hInstance,
1275     GDIPCONST WCHAR* lpBitmapName, GpBitmap** bitmap)
1276 {
1277     HBITMAP hbm;
1278     GpStatus stat = InvalidParameter;
1279
1280     TRACE("%p (%s) %p\n", hInstance, debugstr_w(lpBitmapName), bitmap);
1281
1282     if(!lpBitmapName || !bitmap)
1283         return InvalidParameter;
1284
1285     /* load DIB */
1286     hbm = LoadImageW(hInstance, lpBitmapName, IMAGE_BITMAP, 0, 0,
1287                      LR_CREATEDIBSECTION);
1288
1289     if(hbm){
1290         stat = GdipCreateBitmapFromHBITMAP(hbm, NULL, bitmap);
1291         DeleteObject(hbm);
1292     }
1293
1294     return stat;
1295 }
1296
1297 GpStatus WINGDIPAPI GdipCreateHBITMAPFromBitmap(GpBitmap* bitmap,
1298     HBITMAP* hbmReturn, ARGB background)
1299 {
1300     GpStatus stat;
1301     HBITMAP result, oldbitmap;
1302     UINT width, height;
1303     HDC hdc;
1304     GpGraphics *graphics;
1305     BITMAPINFOHEADER bih;
1306     void *bits;
1307     TRACE("(%p,%p,%x)\n", bitmap, hbmReturn, background);
1308
1309     if (!bitmap || !hbmReturn) return InvalidParameter;
1310
1311     GdipGetImageWidth((GpImage*)bitmap, &width);
1312     GdipGetImageHeight((GpImage*)bitmap, &height);
1313
1314     bih.biSize = sizeof(bih);
1315     bih.biWidth = width;
1316     bih.biHeight = height;
1317     bih.biPlanes = 1;
1318     bih.biBitCount = 32;
1319     bih.biCompression = BI_RGB;
1320     bih.biSizeImage = 0;
1321     bih.biXPelsPerMeter = 0;
1322     bih.biYPelsPerMeter = 0;
1323     bih.biClrUsed = 0;
1324     bih.biClrImportant = 0;
1325
1326     hdc = CreateCompatibleDC(NULL);
1327     if (!hdc) return GenericError;
1328
1329     result = CreateDIBSection(hdc, (BITMAPINFO*)&bih, DIB_RGB_COLORS, &bits,
1330         NULL, 0);
1331
1332     if (result)
1333     {
1334         oldbitmap = SelectObject(hdc, result);
1335
1336         stat = GdipCreateFromHDC(hdc, &graphics);
1337         if (stat == Ok)
1338         {
1339             stat = GdipGraphicsClear(graphics, background);
1340
1341             if (stat == Ok)
1342                 stat = GdipDrawImage(graphics, (GpImage*)bitmap, 0, 0);
1343
1344             GdipDeleteGraphics(graphics);
1345         }
1346
1347         SelectObject(hdc, oldbitmap);
1348     }
1349     else
1350         stat = GenericError;
1351
1352     DeleteDC(hdc);
1353
1354     if (stat != Ok && result)
1355     {
1356         DeleteObject(result);
1357         result = NULL;
1358     }
1359
1360     *hbmReturn = result;
1361
1362     return stat;
1363 }
1364
1365 GpStatus WINGDIPAPI GdipConvertToEmfPlus(const GpGraphics* ref,
1366     GpMetafile* metafile, BOOL* succ, EmfType emfType,
1367     const WCHAR* description, GpMetafile** out_metafile)
1368 {
1369     static int calls;
1370
1371     TRACE("(%p,%p,%p,%u,%s,%p)\n", ref, metafile, succ, emfType,
1372         debugstr_w(description), out_metafile);
1373
1374     if(!ref || !metafile || !out_metafile)
1375         return InvalidParameter;
1376
1377     *succ = FALSE;
1378     *out_metafile = NULL;
1379
1380     if(!(calls++))
1381         FIXME("not implemented\n");
1382
1383     return NotImplemented;
1384 }
1385
1386 /* FIXME: this should create a bitmap in the given size with the attributes
1387  * (resolution etc.) of the graphics object */
1388 GpStatus WINGDIPAPI GdipCreateBitmapFromGraphics(INT width, INT height,
1389     GpGraphics* target, GpBitmap** bitmap)
1390 {
1391     static int calls;
1392     GpStatus ret;
1393
1394     if(!target || !bitmap)
1395         return InvalidParameter;
1396
1397     if(!(calls++))
1398         FIXME("hacked stub\n");
1399
1400     ret = GdipCreateBitmapFromScan0(width, height, 0, PixelFormat24bppRGB,
1401                                     NULL, bitmap);
1402
1403     return ret;
1404 }
1405
1406 GpStatus WINGDIPAPI GdipCreateBitmapFromHICON(HICON hicon, GpBitmap** bitmap)
1407 {
1408     GpStatus stat;
1409     ICONINFO iinfo;
1410     BITMAP bm;
1411     int ret;
1412     UINT width, height;
1413     GpRect rect;
1414     BitmapData lockeddata;
1415     HDC screendc;
1416     BOOL has_alpha;
1417     int x, y;
1418     BYTE *bits;
1419     BITMAPINFOHEADER bih;
1420     DWORD *src;
1421     BYTE *dst_row;
1422     DWORD *dst;
1423
1424     TRACE("%p, %p\n", hicon, bitmap);
1425
1426     if(!bitmap || !GetIconInfo(hicon, &iinfo))
1427         return InvalidParameter;
1428
1429     /* get the size of the icon */
1430     ret = GetObjectA(iinfo.hbmColor ? iinfo.hbmColor : iinfo.hbmMask, sizeof(bm), &bm);
1431     if (ret == 0) {
1432         DeleteObject(iinfo.hbmColor);
1433         DeleteObject(iinfo.hbmMask);
1434         return GenericError;
1435     }
1436
1437     width = bm.bmWidth;
1438
1439     if (iinfo.hbmColor)
1440         height = abs(bm.bmHeight);
1441     else /* combined bitmap + mask */
1442         height = abs(bm.bmHeight) / 2;
1443
1444     bits = HeapAlloc(GetProcessHeap(), 0, 4*width*height);
1445     if (!bits) {
1446         DeleteObject(iinfo.hbmColor);
1447         DeleteObject(iinfo.hbmMask);
1448         return OutOfMemory;
1449     }
1450
1451     stat = GdipCreateBitmapFromScan0(width, height, 0, PixelFormat32bppARGB, NULL, bitmap);
1452     if (stat != Ok) {
1453         DeleteObject(iinfo.hbmColor);
1454         DeleteObject(iinfo.hbmMask);
1455         HeapFree(GetProcessHeap(), 0, bits);
1456         return stat;
1457     }
1458
1459     rect.X = 0;
1460     rect.Y = 0;
1461     rect.Width = width;
1462     rect.Height = height;
1463
1464     stat = GdipBitmapLockBits(*bitmap, &rect, ImageLockModeWrite, PixelFormat32bppARGB, &lockeddata);
1465     if (stat != Ok) {
1466         DeleteObject(iinfo.hbmColor);
1467         DeleteObject(iinfo.hbmMask);
1468         HeapFree(GetProcessHeap(), 0, bits);
1469         GdipDisposeImage((GpImage*)*bitmap);
1470         return stat;
1471     }
1472
1473     bih.biSize = sizeof(bih);
1474     bih.biWidth = width;
1475     bih.biHeight = -height;
1476     bih.biPlanes = 1;
1477     bih.biBitCount = 32;
1478     bih.biCompression = BI_RGB;
1479     bih.biSizeImage = 0;
1480     bih.biXPelsPerMeter = 0;
1481     bih.biYPelsPerMeter = 0;
1482     bih.biClrUsed = 0;
1483     bih.biClrImportant = 0;
1484
1485     screendc = GetDC(0);
1486     if (iinfo.hbmColor)
1487     {
1488         GetDIBits(screendc, iinfo.hbmColor, 0, height, bits, (BITMAPINFO*)&bih, DIB_RGB_COLORS);
1489
1490         if (bm.bmBitsPixel == 32)
1491         {
1492             has_alpha = FALSE;
1493
1494             /* If any pixel has a non-zero alpha, ignore hbmMask */
1495             src = (DWORD*)bits;
1496             for (x=0; x<width && !has_alpha; x++)
1497                 for (y=0; y<height && !has_alpha; y++)
1498                     if ((*src++ & 0xff000000) != 0)
1499                         has_alpha = TRUE;
1500         }
1501         else has_alpha = FALSE;
1502     }
1503     else
1504     {
1505         GetDIBits(screendc, iinfo.hbmMask, 0, height, bits, (BITMAPINFO*)&bih, DIB_RGB_COLORS);
1506         has_alpha = FALSE;
1507     }
1508
1509     /* copy the image data to the Bitmap */
1510     src = (DWORD*)bits;
1511     dst_row = lockeddata.Scan0;
1512     for (y=0; y<height; y++)
1513     {
1514         memcpy(dst_row, src, width*4);
1515         src += width;
1516         dst_row += lockeddata.Stride;
1517     }
1518
1519     if (!has_alpha)
1520     {
1521         if (iinfo.hbmMask)
1522         {
1523             /* read alpha data from the mask */
1524             if (iinfo.hbmColor)
1525                 GetDIBits(screendc, iinfo.hbmMask, 0, height, bits, (BITMAPINFO*)&bih, DIB_RGB_COLORS);
1526             else
1527                 GetDIBits(screendc, iinfo.hbmMask, height, height, bits, (BITMAPINFO*)&bih, DIB_RGB_COLORS);
1528
1529             src = (DWORD*)bits;
1530             dst_row = lockeddata.Scan0;
1531             for (y=0; y<height; y++)
1532             {
1533                 dst = (DWORD*)dst_row;
1534                 for (x=0; x<height; x++)
1535                 {
1536                     DWORD src_value = *src++;
1537                     if (src_value)
1538                         *dst++ = 0;
1539                     else
1540                         *dst++ |= 0xff000000;
1541                 }
1542                 dst_row += lockeddata.Stride;
1543             }
1544         }
1545         else
1546         {
1547             /* set constant alpha of 255 */
1548             dst_row = bits;
1549             for (y=0; y<height; y++)
1550             {
1551                 dst = (DWORD*)dst_row;
1552                 for (x=0; x<height; x++)
1553                     *dst++ |= 0xff000000;
1554                 dst_row += lockeddata.Stride;
1555             }
1556         }
1557     }
1558
1559     ReleaseDC(0, screendc);
1560
1561     DeleteObject(iinfo.hbmColor);
1562     DeleteObject(iinfo.hbmMask);
1563
1564     GdipBitmapUnlockBits(*bitmap, &lockeddata);
1565
1566     HeapFree(GetProcessHeap(), 0, bits);
1567
1568     return Ok;
1569 }
1570
1571 static void generate_halftone_palette(ARGB *entries, UINT count)
1572 {
1573     static const BYTE halftone_values[6]={0x00,0x33,0x66,0x99,0xcc,0xff};
1574     UINT i;
1575
1576     for (i=0; i<8 && i<count; i++)
1577     {
1578         entries[i] = 0xff000000;
1579         if (i&1) entries[i] |= 0x800000;
1580         if (i&2) entries[i] |= 0x8000;
1581         if (i&4) entries[i] |= 0x80;
1582     }
1583
1584     if (8 < count)
1585         entries[i] = 0xffc0c0c0;
1586
1587     for (i=9; i<16 && i<count; i++)
1588     {
1589         entries[i] = 0xff000000;
1590         if (i&1) entries[i] |= 0xff0000;
1591         if (i&2) entries[i] |= 0xff00;
1592         if (i&4) entries[i] |= 0xff;
1593     }
1594
1595     for (i=16; i<40 && i<count; i++)
1596     {
1597         entries[i] = 0;
1598     }
1599
1600     for (i=40; i<256 && i<count; i++)
1601     {
1602         entries[i] = 0xff000000;
1603         entries[i] |= halftone_values[(i-40)%6];
1604         entries[i] |= halftone_values[((i-40)/6)%6] << 8;
1605         entries[i] |= halftone_values[((i-40)/36)%6] << 16;
1606     }
1607 }
1608
1609 static GpStatus get_screen_resolution(REAL *xres, REAL *yres)
1610 {
1611     HDC screendc = GetDC(0);
1612
1613     if (!screendc) return GenericError;
1614
1615     *xres = (REAL)GetDeviceCaps(screendc, LOGPIXELSX);
1616     *yres = (REAL)GetDeviceCaps(screendc, LOGPIXELSY);
1617
1618     ReleaseDC(0, screendc);
1619
1620     return Ok;
1621 }
1622
1623 GpStatus WINGDIPAPI GdipCreateBitmapFromScan0(INT width, INT height, INT stride,
1624     PixelFormat format, BYTE* scan0, GpBitmap** bitmap)
1625 {
1626     BITMAPINFO* pbmi;
1627     HBITMAP hbitmap;
1628     INT row_size, dib_stride;
1629     HDC hdc;
1630     BYTE *bits;
1631     int i;
1632     REAL xres, yres;
1633     GpStatus stat;
1634
1635     TRACE("%d %d %d 0x%x %p %p\n", width, height, stride, format, scan0, bitmap);
1636
1637     if (!bitmap) return InvalidParameter;
1638
1639     if(width <= 0 || height <= 0 || (scan0 && (stride % 4))){
1640         *bitmap = NULL;
1641         return InvalidParameter;
1642     }
1643
1644     if(scan0 && !stride)
1645         return InvalidParameter;
1646
1647     stat = get_screen_resolution(&xres, &yres);
1648     if (stat != Ok) return stat;
1649
1650     row_size = (width * PIXELFORMATBPP(format)+7) / 8;
1651     dib_stride = (row_size + 3) & ~3;
1652
1653     if(stride == 0)
1654         stride = dib_stride;
1655
1656     pbmi = GdipAlloc(sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
1657     if (!pbmi)
1658         return OutOfMemory;
1659
1660     pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
1661     pbmi->bmiHeader.biWidth = width;
1662     pbmi->bmiHeader.biHeight = -height;
1663     pbmi->bmiHeader.biPlanes = 1;
1664     /* FIXME: use the rest of the data from format */
1665     pbmi->bmiHeader.biBitCount = PIXELFORMATBPP(format);
1666     pbmi->bmiHeader.biCompression = BI_RGB;
1667     pbmi->bmiHeader.biSizeImage = 0;
1668     pbmi->bmiHeader.biXPelsPerMeter = 0;
1669     pbmi->bmiHeader.biYPelsPerMeter = 0;
1670     pbmi->bmiHeader.biClrUsed = 0;
1671     pbmi->bmiHeader.biClrImportant = 0;
1672
1673     hdc = CreateCompatibleDC(NULL);
1674     if (!hdc) {
1675         GdipFree(pbmi);
1676         return GenericError;
1677     }
1678
1679     hbitmap = CreateDIBSection(hdc, pbmi, DIB_RGB_COLORS, (void**)&bits, NULL, 0);
1680
1681     DeleteDC(hdc);
1682     GdipFree(pbmi);
1683
1684     if (!hbitmap) return GenericError;
1685
1686     /* copy bits to the dib if necessary */
1687     /* FIXME: should reference the bits instead of copying them */
1688     if (scan0)
1689         for (i=0; i<height; i++)
1690             memcpy(bits+i*dib_stride, scan0+i*stride, row_size);
1691
1692     *bitmap = GdipAlloc(sizeof(GpBitmap));
1693     if(!*bitmap)
1694     {
1695         DeleteObject(hbitmap);
1696         return OutOfMemory;
1697     }
1698
1699     (*bitmap)->image.type = ImageTypeBitmap;
1700     memcpy(&(*bitmap)->image.format, &ImageFormatMemoryBMP, sizeof(GUID));
1701     (*bitmap)->image.flags = ImageFlagsNone;
1702     (*bitmap)->image.palette_flags = 0;
1703     (*bitmap)->image.palette_count = 0;
1704     (*bitmap)->image.palette_size = 0;
1705     (*bitmap)->image.palette_entries = NULL;
1706     (*bitmap)->image.xres = xres;
1707     (*bitmap)->image.yres = yres;
1708     (*bitmap)->width = width;
1709     (*bitmap)->height = height;
1710     (*bitmap)->format = format;
1711     (*bitmap)->image.picture = NULL;
1712     (*bitmap)->hbitmap = hbitmap;
1713     (*bitmap)->hdc = NULL;
1714     (*bitmap)->bits = bits;
1715     (*bitmap)->stride = dib_stride;
1716
1717     if (format == PixelFormat1bppIndexed ||
1718         format == PixelFormat4bppIndexed ||
1719         format == PixelFormat8bppIndexed)
1720     {
1721         (*bitmap)->image.palette_size = (*bitmap)->image.palette_count = 1 << PIXELFORMATBPP(format);
1722         (*bitmap)->image.palette_entries = GdipAlloc(sizeof(ARGB) * ((*bitmap)->image.palette_size));
1723
1724         if (!(*bitmap)->image.palette_entries)
1725         {
1726             GdipDisposeImage(&(*bitmap)->image);
1727             *bitmap = NULL;
1728             return OutOfMemory;
1729         }
1730
1731         if (format == PixelFormat1bppIndexed)
1732         {
1733             (*bitmap)->image.palette_flags = PaletteFlagsGrayScale;
1734             (*bitmap)->image.palette_entries[0] = 0xff000000;
1735             (*bitmap)->image.palette_entries[1] = 0xffffffff;
1736         }
1737         else
1738         {
1739             if (format == PixelFormat8bppIndexed)
1740                 (*bitmap)->image.palette_flags = PaletteFlagsHalftone;
1741
1742             generate_halftone_palette((*bitmap)->image.palette_entries,
1743                 (*bitmap)->image.palette_count);
1744         }
1745     }
1746
1747     TRACE("<-- %p\n", *bitmap);
1748
1749     return Ok;
1750 }
1751
1752 GpStatus WINGDIPAPI GdipCreateBitmapFromStream(IStream* stream,
1753     GpBitmap **bitmap)
1754 {
1755     GpStatus stat;
1756
1757     TRACE("%p %p\n", stream, bitmap);
1758
1759     stat = GdipLoadImageFromStream(stream, (GpImage**) bitmap);
1760
1761     if(stat != Ok)
1762         return stat;
1763
1764     if((*bitmap)->image.type != ImageTypeBitmap){
1765         GdipDisposeImage(&(*bitmap)->image);
1766         *bitmap = NULL;
1767         return GenericError; /* FIXME: what error to return? */
1768     }
1769
1770     return Ok;
1771 }
1772
1773 /* FIXME: no icm */
1774 GpStatus WINGDIPAPI GdipCreateBitmapFromStreamICM(IStream* stream,
1775     GpBitmap **bitmap)
1776 {
1777     TRACE("%p %p\n", stream, bitmap);
1778
1779     return GdipCreateBitmapFromStream(stream, bitmap);
1780 }
1781
1782 GpStatus WINGDIPAPI GdipCreateCachedBitmap(GpBitmap *bitmap, GpGraphics *graphics,
1783     GpCachedBitmap **cachedbmp)
1784 {
1785     GpStatus stat;
1786
1787     TRACE("%p %p %p\n", bitmap, graphics, cachedbmp);
1788
1789     if(!bitmap || !graphics || !cachedbmp)
1790         return InvalidParameter;
1791
1792     *cachedbmp = GdipAlloc(sizeof(GpCachedBitmap));
1793     if(!*cachedbmp)
1794         return OutOfMemory;
1795
1796     stat = GdipCloneImage(&(bitmap->image), &(*cachedbmp)->image);
1797     if(stat != Ok){
1798         GdipFree(*cachedbmp);
1799         return stat;
1800     }
1801
1802     return Ok;
1803 }
1804
1805 GpStatus WINGDIPAPI GdipCreateHICONFromBitmap(GpBitmap *bitmap, HICON *hicon)
1806 {
1807     FIXME("(%p, %p)\n", bitmap, hicon);
1808
1809     return NotImplemented;
1810 }
1811
1812 GpStatus WINGDIPAPI GdipDeleteCachedBitmap(GpCachedBitmap *cachedbmp)
1813 {
1814     TRACE("%p\n", cachedbmp);
1815
1816     if(!cachedbmp)
1817         return InvalidParameter;
1818
1819     GdipDisposeImage(cachedbmp->image);
1820     GdipFree(cachedbmp);
1821
1822     return Ok;
1823 }
1824
1825 GpStatus WINGDIPAPI GdipDrawCachedBitmap(GpGraphics *graphics,
1826     GpCachedBitmap *cachedbmp, INT x, INT y)
1827 {
1828     TRACE("%p %p %d %d\n", graphics, cachedbmp, x, y);
1829
1830     if(!graphics || !cachedbmp)
1831         return InvalidParameter;
1832
1833     return GdipDrawImage(graphics, cachedbmp->image, (REAL)x, (REAL)y);
1834 }
1835
1836 GpStatus WINGDIPAPI GdipEmfToWmfBits(HENHMETAFILE hemf, UINT cbData16,
1837     LPBYTE pData16, INT iMapMode, INT eFlags)
1838 {
1839     FIXME("(%p, %d, %p, %d, %d): stub\n", hemf, cbData16, pData16, iMapMode, eFlags);
1840     return NotImplemented;
1841 }
1842
1843 /* Internal utility function: Replace the image data of dst with that of src,
1844  * and free src. */
1845 static void move_bitmap(GpBitmap *dst, GpBitmap *src, BOOL clobber_palette)
1846 {
1847     GdipFree(dst->bitmapbits);
1848     DeleteDC(dst->hdc);
1849     DeleteObject(dst->hbitmap);
1850
1851     if (clobber_palette)
1852     {
1853         GdipFree(dst->image.palette_entries);
1854         dst->image.palette_flags = src->image.palette_flags;
1855         dst->image.palette_count = src->image.palette_count;
1856         dst->image.palette_entries = src->image.palette_entries;
1857     }
1858     else
1859         GdipFree(src->image.palette_entries);
1860
1861     dst->image.xres = src->image.xres;
1862     dst->image.yres = src->image.yres;
1863     dst->width = src->width;
1864     dst->height = src->height;
1865     dst->format = src->format;
1866     dst->hbitmap = src->hbitmap;
1867     dst->hdc = src->hdc;
1868     dst->bits = src->bits;
1869     dst->stride = src->stride;
1870
1871     GdipFree(src);
1872 }
1873
1874 GpStatus WINGDIPAPI GdipDisposeImage(GpImage *image)
1875 {
1876     TRACE("%p\n", image);
1877
1878     if(!image)
1879         return InvalidParameter;
1880
1881     if (image->picture)
1882         IPicture_Release(image->picture);
1883     if (image->type == ImageTypeBitmap)
1884     {
1885         GdipFree(((GpBitmap*)image)->bitmapbits);
1886         DeleteDC(((GpBitmap*)image)->hdc);
1887         DeleteObject(((GpBitmap*)image)->hbitmap);
1888     }
1889     GdipFree(image->palette_entries);
1890     GdipFree(image);
1891
1892     return Ok;
1893 }
1894
1895 GpStatus WINGDIPAPI GdipFindFirstImageItem(GpImage *image, ImageItemData* item)
1896 {
1897     static int calls;
1898
1899     TRACE("(%p,%p)\n", image, item);
1900
1901     if(!image || !item)
1902         return InvalidParameter;
1903
1904     if (!(calls++))
1905         FIXME("not implemented\n");
1906
1907     return NotImplemented;
1908 }
1909
1910 GpStatus WINGDIPAPI GdipGetImageItemData(GpImage *image, ImageItemData *item)
1911 {
1912     static int calls;
1913
1914     TRACE("(%p,%p)\n", image, item);
1915
1916     if (!(calls++))
1917         FIXME("not implemented\n");
1918
1919     return NotImplemented;
1920 }
1921
1922 GpStatus WINGDIPAPI GdipGetImageBounds(GpImage *image, GpRectF *srcRect,
1923     GpUnit *srcUnit)
1924 {
1925     TRACE("%p %p %p\n", image, srcRect, srcUnit);
1926
1927     if(!image || !srcRect || !srcUnit)
1928         return InvalidParameter;
1929     if(image->type == ImageTypeMetafile){
1930         *srcRect = ((GpMetafile*)image)->bounds;
1931         *srcUnit = ((GpMetafile*)image)->unit;
1932     }
1933     else if(image->type == ImageTypeBitmap){
1934         srcRect->X = srcRect->Y = 0.0;
1935         srcRect->Width = (REAL) ((GpBitmap*)image)->width;
1936         srcRect->Height = (REAL) ((GpBitmap*)image)->height;
1937         *srcUnit = UnitPixel;
1938     }
1939     else{
1940         srcRect->X = srcRect->Y = 0.0;
1941         srcRect->Width = ipicture_pixel_width(image->picture);
1942         srcRect->Height = ipicture_pixel_height(image->picture);
1943         *srcUnit = UnitPixel;
1944     }
1945
1946     TRACE("returning (%f, %f) (%f, %f) unit type %d\n", srcRect->X, srcRect->Y,
1947           srcRect->Width, srcRect->Height, *srcUnit);
1948
1949     return Ok;
1950 }
1951
1952 GpStatus WINGDIPAPI GdipGetImageDimension(GpImage *image, REAL *width,
1953     REAL *height)
1954 {
1955     TRACE("%p %p %p\n", image, width, height);
1956
1957     if(!image || !height || !width)
1958         return InvalidParameter;
1959
1960     if(image->type == ImageTypeMetafile){
1961         HDC hdc = GetDC(0);
1962
1963         *height = convert_unit(hdc, ((GpMetafile*)image)->unit) *
1964                         ((GpMetafile*)image)->bounds.Height;
1965
1966         *width = convert_unit(hdc, ((GpMetafile*)image)->unit) *
1967                         ((GpMetafile*)image)->bounds.Width;
1968
1969         ReleaseDC(0, hdc);
1970     }
1971
1972     else if(image->type == ImageTypeBitmap){
1973         *height = ((GpBitmap*)image)->height;
1974         *width = ((GpBitmap*)image)->width;
1975     }
1976     else{
1977         *height = ipicture_pixel_height(image->picture);
1978         *width = ipicture_pixel_width(image->picture);
1979     }
1980
1981     TRACE("returning (%f, %f)\n", *height, *width);
1982     return Ok;
1983 }
1984
1985 GpStatus WINGDIPAPI GdipGetImageGraphicsContext(GpImage *image,
1986     GpGraphics **graphics)
1987 {
1988     HDC hdc;
1989     GpStatus stat;
1990
1991     TRACE("%p %p\n", image, graphics);
1992
1993     if(!image || !graphics)
1994         return InvalidParameter;
1995
1996     if(image->type != ImageTypeBitmap){
1997         FIXME("not implemented for image type %d\n", image->type);
1998         return NotImplemented;
1999     }
2000
2001     hdc = ((GpBitmap*)image)->hdc;
2002
2003     if(!hdc){
2004         hdc = CreateCompatibleDC(0);
2005         SelectObject(hdc, ((GpBitmap*)image)->hbitmap);
2006         ((GpBitmap*)image)->hdc = hdc;
2007     }
2008
2009     stat = GdipCreateFromHDC(hdc, graphics);
2010
2011     if (stat == Ok)
2012         (*graphics)->image = image;
2013
2014     return stat;
2015 }
2016
2017 GpStatus WINGDIPAPI GdipGetImageHeight(GpImage *image, UINT *height)
2018 {
2019     TRACE("%p %p\n", image, height);
2020
2021     if(!image || !height)
2022         return InvalidParameter;
2023
2024     if(image->type == ImageTypeMetafile){
2025         HDC hdc = GetDC(0);
2026
2027         *height = roundr(convert_unit(hdc, ((GpMetafile*)image)->unit) *
2028                         ((GpMetafile*)image)->bounds.Height);
2029
2030         ReleaseDC(0, hdc);
2031     }
2032     else if(image->type == ImageTypeBitmap)
2033         *height = ((GpBitmap*)image)->height;
2034     else
2035         *height = ipicture_pixel_height(image->picture);
2036
2037     TRACE("returning %d\n", *height);
2038
2039     return Ok;
2040 }
2041
2042 GpStatus WINGDIPAPI GdipGetImageHorizontalResolution(GpImage *image, REAL *res)
2043 {
2044     if(!image || !res)
2045         return InvalidParameter;
2046
2047     *res = image->xres;
2048
2049     TRACE("(%p) <-- %0.2f\n", image, *res);
2050
2051     return Ok;
2052 }
2053
2054 GpStatus WINGDIPAPI GdipGetImagePaletteSize(GpImage *image, INT *size)
2055 {
2056     TRACE("%p %p\n", image, size);
2057
2058     if(!image || !size)
2059         return InvalidParameter;
2060
2061     if (image->palette_count == 0)
2062         *size = sizeof(ColorPalette);
2063     else
2064         *size = sizeof(UINT)*2 + sizeof(ARGB)*image->palette_count;
2065
2066     TRACE("<-- %u\n", *size);
2067
2068     return Ok;
2069 }
2070
2071 /* FIXME: test this function for non-bitmap types */
2072 GpStatus WINGDIPAPI GdipGetImagePixelFormat(GpImage *image, PixelFormat *format)
2073 {
2074     TRACE("%p %p\n", image, format);
2075
2076     if(!image || !format)
2077         return InvalidParameter;
2078
2079     if(image->type != ImageTypeBitmap)
2080         *format = PixelFormat24bppRGB;
2081     else
2082         *format = ((GpBitmap*) image)->format;
2083
2084     return Ok;
2085 }
2086
2087 GpStatus WINGDIPAPI GdipGetImageRawFormat(GpImage *image, GUID *format)
2088 {
2089     if(!image || !format)
2090         return InvalidParameter;
2091
2092     memcpy(format, &image->format, sizeof(GUID));
2093
2094     return Ok;
2095 }
2096
2097 GpStatus WINGDIPAPI GdipGetImageType(GpImage *image, ImageType *type)
2098 {
2099     TRACE("%p %p\n", image, type);
2100
2101     if(!image || !type)
2102         return InvalidParameter;
2103
2104     *type = image->type;
2105
2106     return Ok;
2107 }
2108
2109 GpStatus WINGDIPAPI GdipGetImageVerticalResolution(GpImage *image, REAL *res)
2110 {
2111     if(!image || !res)
2112         return InvalidParameter;
2113
2114     *res = image->yres;
2115
2116     TRACE("(%p) <-- %0.2f\n", image, *res);
2117
2118     return Ok;
2119 }
2120
2121 GpStatus WINGDIPAPI GdipGetImageWidth(GpImage *image, UINT *width)
2122 {
2123     TRACE("%p %p\n", image, width);
2124
2125     if(!image || !width)
2126         return InvalidParameter;
2127
2128     if(image->type == ImageTypeMetafile){
2129         HDC hdc = GetDC(0);
2130
2131         *width = roundr(convert_unit(hdc, ((GpMetafile*)image)->unit) *
2132                         ((GpMetafile*)image)->bounds.Width);
2133
2134         ReleaseDC(0, hdc);
2135     }
2136     else if(image->type == ImageTypeBitmap)
2137         *width = ((GpBitmap*)image)->width;
2138     else
2139         *width = ipicture_pixel_width(image->picture);
2140
2141     TRACE("returning %d\n", *width);
2142
2143     return Ok;
2144 }
2145
2146 GpStatus WINGDIPAPI GdipGetMetafileHeaderFromMetafile(GpMetafile * metafile,
2147     MetafileHeader * header)
2148 {
2149     static int calls;
2150
2151     if(!metafile || !header)
2152         return InvalidParameter;
2153
2154     if(!(calls++))
2155         FIXME("not implemented\n");
2156
2157     memset(header, 0, sizeof(MetafileHeader));
2158
2159     return Ok;
2160 }
2161
2162 GpStatus WINGDIPAPI GdipGetAllPropertyItems(GpImage *image, UINT size,
2163     UINT num, PropertyItem* items)
2164 {
2165     static int calls;
2166
2167     if(!(calls++))
2168         FIXME("not implemented\n");
2169
2170     return InvalidParameter;
2171 }
2172
2173 GpStatus WINGDIPAPI GdipGetPropertyCount(GpImage *image, UINT* num)
2174 {
2175     static int calls;
2176
2177     if(!(calls++))
2178         FIXME("not implemented\n");
2179
2180     return InvalidParameter;
2181 }
2182
2183 GpStatus WINGDIPAPI GdipGetPropertyIdList(GpImage *image, UINT num, PROPID* list)
2184 {
2185     static int calls;
2186
2187     if(!(calls++))
2188         FIXME("not implemented\n");
2189
2190     return InvalidParameter;
2191 }
2192
2193 GpStatus WINGDIPAPI GdipGetPropertyItem(GpImage *image, PROPID id, UINT size,
2194     PropertyItem* buffer)
2195 {
2196     static int calls;
2197
2198     if(!(calls++))
2199         FIXME("not implemented\n");
2200
2201     return InvalidParameter;
2202 }
2203
2204 GpStatus WINGDIPAPI GdipGetPropertyItemSize(GpImage *image, PROPID pid,
2205     UINT* size)
2206 {
2207     static int calls;
2208
2209     TRACE("%p %x %p\n", image, pid, size);
2210
2211     if(!size || !image)
2212         return InvalidParameter;
2213
2214     if(!(calls++))
2215         FIXME("not implemented\n");
2216
2217     return NotImplemented;
2218 }
2219
2220 GpStatus WINGDIPAPI GdipGetPropertySize(GpImage *image, UINT* size, UINT* num)
2221 {
2222     static int calls;
2223
2224     TRACE("(%p,%p,%p)\n", image, size, num);
2225
2226     if(!(calls++))
2227         FIXME("not implemented\n");
2228
2229     return InvalidParameter;
2230 }
2231
2232 struct image_format_dimension
2233 {
2234     const GUID *format;
2235     const GUID *dimension;
2236 };
2237
2238 struct image_format_dimension image_format_dimensions[] =
2239 {
2240     {&ImageFormatGIF, &FrameDimensionTime},
2241     {&ImageFormatIcon, &FrameDimensionResolution},
2242     {NULL}
2243 };
2244
2245 /* FIXME: Need to handle multi-framed images */
2246 GpStatus WINGDIPAPI GdipImageGetFrameCount(GpImage *image,
2247     GDIPCONST GUID* dimensionID, UINT* count)
2248 {
2249     static int calls;
2250
2251     TRACE("(%p,%s,%p)\n", image, debugstr_guid(dimensionID), count);
2252
2253     if(!image || !count)
2254         return InvalidParameter;
2255
2256     if(!(calls++))
2257         FIXME("returning frame count of 1\n");
2258
2259     *count = 1;
2260
2261     return Ok;
2262 }
2263
2264 GpStatus WINGDIPAPI GdipImageGetFrameDimensionsCount(GpImage *image,
2265     UINT* count)
2266 {
2267     /* Native gdiplus 1.1 does not yet support multiple frame dimensions. */
2268
2269     if(!image || !count)
2270         return InvalidParameter;
2271
2272     *count = 1;
2273
2274     return Ok;
2275 }
2276
2277 GpStatus WINGDIPAPI GdipImageGetFrameDimensionsList(GpImage* image,
2278     GUID* dimensionIDs, UINT count)
2279 {
2280     int i;
2281     const GUID *result=NULL;
2282
2283     TRACE("(%p,%p,%u)\n", image, dimensionIDs, count);
2284
2285     if(!image || !dimensionIDs || count != 1)
2286         return InvalidParameter;
2287
2288     for (i=0; image_format_dimensions[i].format; i++)
2289     {
2290         if (IsEqualGUID(&image->format, image_format_dimensions[i].format))
2291         {
2292             result = image_format_dimensions[i].dimension;
2293             break;
2294         }
2295     }
2296
2297     if (!result)
2298         result = &FrameDimensionPage;
2299
2300     memcpy(dimensionIDs, result, sizeof(GUID));
2301
2302     return Ok;
2303 }
2304
2305 GpStatus WINGDIPAPI GdipImageSelectActiveFrame(GpImage *image,
2306     GDIPCONST GUID* dimensionID, UINT frameidx)
2307 {
2308     static int calls;
2309
2310     if(!image || !dimensionID)
2311         return InvalidParameter;
2312
2313     if(!(calls++))
2314         FIXME("not implemented\n");
2315
2316     return Ok;
2317 }
2318
2319 GpStatus WINGDIPAPI GdipLoadImageFromFile(GDIPCONST WCHAR* filename,
2320                                           GpImage **image)
2321 {
2322     GpStatus stat;
2323     IStream *stream;
2324
2325     TRACE("(%s) %p\n", debugstr_w(filename), image);
2326
2327     if (!filename || !image)
2328         return InvalidParameter;
2329
2330     stat = GdipCreateStreamOnFile(filename, GENERIC_READ, &stream);
2331
2332     if (stat != Ok)
2333         return stat;
2334
2335     stat = GdipLoadImageFromStream(stream, image);
2336
2337     IStream_Release(stream);
2338
2339     return stat;
2340 }
2341
2342 /* FIXME: no icm handling */
2343 GpStatus WINGDIPAPI GdipLoadImageFromFileICM(GDIPCONST WCHAR* filename,GpImage **image)
2344 {
2345     TRACE("(%s) %p\n", debugstr_w(filename), image);
2346
2347     return GdipLoadImageFromFile(filename, image);
2348 }
2349
2350 static const WICPixelFormatGUID *wic_pixel_formats[] = {
2351     &GUID_WICPixelFormat16bppBGR555,
2352     &GUID_WICPixelFormat24bppBGR,
2353     &GUID_WICPixelFormat32bppBGR,
2354     &GUID_WICPixelFormat32bppBGRA,
2355     &GUID_WICPixelFormat32bppPBGRA,
2356     NULL
2357 };
2358
2359 static const PixelFormat wic_gdip_formats[] = {
2360     PixelFormat16bppRGB555,
2361     PixelFormat24bppRGB,
2362     PixelFormat32bppRGB,
2363     PixelFormat32bppARGB,
2364     PixelFormat32bppPARGB,
2365 };
2366
2367 static GpStatus decode_image_wic(IStream* stream, REFCLSID clsid, GpImage **image)
2368 {
2369     GpStatus status=Ok;
2370     GpBitmap *bitmap;
2371     HRESULT hr;
2372     IWICBitmapDecoder *decoder;
2373     IWICBitmapFrameDecode *frame;
2374     IWICBitmapSource *source=NULL;
2375     WICPixelFormatGUID wic_format;
2376     PixelFormat gdip_format=0;
2377     int i;
2378     UINT width, height;
2379     BitmapData lockeddata;
2380     WICRect wrc;
2381     HRESULT initresult;
2382
2383     initresult = CoInitialize(NULL);
2384
2385     hr = CoCreateInstance(clsid, NULL, CLSCTX_INPROC_SERVER,
2386         &IID_IWICBitmapDecoder, (void**)&decoder);
2387     if (FAILED(hr)) goto end;
2388
2389     hr = IWICBitmapDecoder_Initialize(decoder, (IStream*)stream, WICDecodeMetadataCacheOnLoad);
2390     if (SUCCEEDED(hr))
2391         hr = IWICBitmapDecoder_GetFrame(decoder, 0, &frame);
2392
2393     if (SUCCEEDED(hr)) /* got frame */
2394     {
2395         hr = IWICBitmapFrameDecode_GetPixelFormat(frame, &wic_format);
2396
2397         if (SUCCEEDED(hr))
2398         {
2399             for (i=0; wic_pixel_formats[i]; i++)
2400             {
2401                 if (IsEqualGUID(&wic_format, wic_pixel_formats[i]))
2402                 {
2403                     source = (IWICBitmapSource*)frame;
2404                     IWICBitmapSource_AddRef(source);
2405                     gdip_format = wic_gdip_formats[i];
2406                     break;
2407                 }
2408             }
2409             if (!source)
2410             {
2411                 /* unknown format; fall back on 32bppARGB */
2412                 hr = WICConvertBitmapSource(&GUID_WICPixelFormat32bppBGRA, (IWICBitmapSource*)frame, &source);
2413                 gdip_format = PixelFormat32bppARGB;
2414             }
2415         }
2416
2417         if (SUCCEEDED(hr)) /* got source */
2418         {
2419             hr = IWICBitmapSource_GetSize(source, &width, &height);
2420
2421             if (SUCCEEDED(hr))
2422                 status = GdipCreateBitmapFromScan0(width, height, 0, gdip_format,
2423                     NULL, &bitmap);
2424
2425             if (SUCCEEDED(hr) && status == Ok) /* created bitmap */
2426             {
2427                 status = GdipBitmapLockBits(bitmap, NULL, ImageLockModeWrite,
2428                     gdip_format, &lockeddata);
2429                 if (status == Ok) /* locked bitmap */
2430                 {
2431                     wrc.X = 0;
2432                     wrc.Width = width;
2433                     wrc.Height = 1;
2434                     for (i=0; i<height; i++)
2435                     {
2436                         wrc.Y = i;
2437                         hr = IWICBitmapSource_CopyPixels(source, &wrc, abs(lockeddata.Stride),
2438                             abs(lockeddata.Stride), (BYTE*)lockeddata.Scan0+lockeddata.Stride*i);
2439                         if (FAILED(hr)) break;
2440                     }
2441
2442                     GdipBitmapUnlockBits(bitmap, &lockeddata);
2443                 }
2444
2445                 if (SUCCEEDED(hr) && status == Ok)
2446                     *image = (GpImage*)bitmap;
2447                 else
2448                 {
2449                     *image = NULL;
2450                     GdipDisposeImage((GpImage*)bitmap);
2451                 }
2452             }
2453
2454             IWICBitmapSource_Release(source);
2455         }
2456
2457         IWICBitmapFrameDecode_Release(frame);
2458     }
2459
2460     IWICBitmapDecoder_Release(decoder);
2461
2462 end:
2463     if (SUCCEEDED(initresult)) CoUninitialize();
2464
2465     if (FAILED(hr) && status == Ok) status = hresult_to_status(hr);
2466
2467     return status;
2468 }
2469
2470 static GpStatus decode_image_icon(IStream* stream, REFCLSID clsid, GpImage **image)
2471 {
2472     return decode_image_wic(stream, &CLSID_WICIcoDecoder, image);
2473 }
2474
2475 static GpStatus decode_image_bmp(IStream* stream, REFCLSID clsid, GpImage **image)
2476 {
2477     GpStatus status;
2478     GpBitmap* bitmap;
2479
2480     status = decode_image_wic(stream, &CLSID_WICBmpDecoder, image);
2481
2482     bitmap = (GpBitmap*)*image;
2483
2484     if (status == Ok && bitmap->format == PixelFormat32bppARGB)
2485     {
2486         /* WIC supports bmp files with alpha, but gdiplus does not */
2487         bitmap->format = PixelFormat32bppRGB;
2488     }
2489
2490     return status;
2491 }
2492
2493 static GpStatus decode_image_jpeg(IStream* stream, REFCLSID clsid, GpImage **image)
2494 {
2495     return decode_image_wic(stream, &CLSID_WICJpegDecoder, image);
2496 }
2497
2498 static GpStatus decode_image_png(IStream* stream, REFCLSID clsid, GpImage **image)
2499 {
2500     return decode_image_wic(stream, &CLSID_WICPngDecoder, image);
2501 }
2502
2503 static GpStatus decode_image_gif(IStream* stream, REFCLSID clsid, GpImage **image)
2504 {
2505     return decode_image_wic(stream, &CLSID_WICGifDecoder, image);
2506 }
2507
2508 static GpStatus decode_image_tiff(IStream* stream, REFCLSID clsid, GpImage **image)
2509 {
2510     return decode_image_wic(stream, &CLSID_WICTiffDecoder, image);
2511 }
2512
2513 static GpStatus decode_image_olepicture_metafile(IStream* stream, REFCLSID clsid, GpImage **image)
2514 {
2515     IPicture *pic;
2516
2517     TRACE("%p %p\n", stream, image);
2518
2519     if(!stream || !image)
2520         return InvalidParameter;
2521
2522     if(OleLoadPicture(stream, 0, FALSE, &IID_IPicture,
2523         (LPVOID*) &pic) != S_OK){
2524         TRACE("Could not load picture\n");
2525         return GenericError;
2526     }
2527
2528     /* FIXME: missing initialization code */
2529     *image = GdipAlloc(sizeof(GpMetafile));
2530     if(!*image) return OutOfMemory;
2531     (*image)->type = ImageTypeMetafile;
2532     (*image)->picture = pic;
2533     (*image)->flags   = ImageFlagsNone;
2534     (*image)->palette_flags = 0;
2535     (*image)->palette_count = 0;
2536     (*image)->palette_size = 0;
2537     (*image)->palette_entries = NULL;
2538
2539     TRACE("<-- %p\n", *image);
2540
2541     return Ok;
2542 }
2543
2544 typedef GpStatus (*encode_image_func)(GpImage *image, IStream* stream,
2545     GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params);
2546
2547 typedef GpStatus (*decode_image_func)(IStream *stream, REFCLSID clsid, GpImage** image);
2548
2549 typedef struct image_codec {
2550     ImageCodecInfo info;
2551     encode_image_func encode_func;
2552     decode_image_func decode_func;
2553 } image_codec;
2554
2555 typedef enum {
2556     BMP,
2557     JPEG,
2558     GIF,
2559     TIFF,
2560     EMF,
2561     WMF,
2562     PNG,
2563     ICO,
2564     NUM_CODECS
2565 } ImageFormat;
2566
2567 static const struct image_codec codecs[NUM_CODECS];
2568
2569 static GpStatus get_decoder_info(IStream* stream, const struct image_codec **result)
2570 {
2571     BYTE signature[8];
2572     const BYTE *pattern, *mask;
2573     LARGE_INTEGER seek;
2574     HRESULT hr;
2575     UINT bytesread;
2576     int i, j, sig;
2577
2578     /* seek to the start of the stream */
2579     seek.QuadPart = 0;
2580     hr = IStream_Seek(stream, seek, STREAM_SEEK_SET, NULL);
2581     if (FAILED(hr)) return hresult_to_status(hr);
2582
2583     /* read the first 8 bytes */
2584     /* FIXME: This assumes all codecs have signatures <= 8 bytes in length */
2585     hr = IStream_Read(stream, signature, 8, &bytesread);
2586     if (FAILED(hr)) return hresult_to_status(hr);
2587     if (hr == S_FALSE || bytesread == 0) return GenericError;
2588
2589     for (i = 0; i < NUM_CODECS; i++) {
2590         if ((codecs[i].info.Flags & ImageCodecFlagsDecoder) &&
2591             bytesread >= codecs[i].info.SigSize)
2592         {
2593             for (sig=0; sig<codecs[i].info.SigCount; sig++)
2594             {
2595                 pattern = &codecs[i].info.SigPattern[codecs[i].info.SigSize*sig];
2596                 mask = &codecs[i].info.SigMask[codecs[i].info.SigSize*sig];
2597                 for (j=0; j<codecs[i].info.SigSize; j++)
2598                     if ((signature[j] & mask[j]) != pattern[j])
2599                         break;
2600                 if (j == codecs[i].info.SigSize)
2601                 {
2602                     *result = &codecs[i];
2603                     return Ok;
2604                 }
2605             }
2606         }
2607     }
2608
2609     TRACE("no match for %i byte signature %x %x %x %x %x %x %x %x\n", bytesread,
2610         signature[0],signature[1],signature[2],signature[3],
2611         signature[4],signature[5],signature[6],signature[7]);
2612
2613     return GenericError;
2614 }
2615
2616 GpStatus WINGDIPAPI GdipLoadImageFromStream(IStream* stream, GpImage **image)
2617 {
2618     GpStatus stat;
2619     LARGE_INTEGER seek;
2620     HRESULT hr;
2621     const struct image_codec *codec=NULL;
2622
2623     /* choose an appropriate image decoder */
2624     stat = get_decoder_info(stream, &codec);
2625     if (stat != Ok) return stat;
2626
2627     /* seek to the start of the stream */
2628     seek.QuadPart = 0;
2629     hr = IStream_Seek(stream, seek, STREAM_SEEK_SET, NULL);
2630     if (FAILED(hr)) return hresult_to_status(hr);
2631
2632     /* call on the image decoder to do the real work */
2633     stat = codec->decode_func(stream, &codec->info.Clsid, image);
2634
2635     /* take note of the original data format */
2636     if (stat == Ok)
2637     {
2638         memcpy(&(*image)->format, &codec->info.FormatID, sizeof(GUID));
2639     }
2640
2641     return stat;
2642 }
2643
2644 /* FIXME: no ICM */
2645 GpStatus WINGDIPAPI GdipLoadImageFromStreamICM(IStream* stream, GpImage **image)
2646 {
2647     TRACE("%p %p\n", stream, image);
2648
2649     return GdipLoadImageFromStream(stream, image);
2650 }
2651
2652 GpStatus WINGDIPAPI GdipRemovePropertyItem(GpImage *image, PROPID propId)
2653 {
2654     static int calls;
2655
2656     TRACE("(%p,%u)\n", image, propId);
2657
2658     if(!image)
2659         return InvalidParameter;
2660
2661     if(!(calls++))
2662         FIXME("not implemented\n");
2663
2664     return NotImplemented;
2665 }
2666
2667 GpStatus WINGDIPAPI GdipSetPropertyItem(GpImage *image, GDIPCONST PropertyItem* item)
2668 {
2669     static int calls;
2670
2671     TRACE("(%p,%p)\n", image, item);
2672
2673     if(!(calls++))
2674         FIXME("not implemented\n");
2675
2676     return NotImplemented;
2677 }
2678
2679 GpStatus WINGDIPAPI GdipSaveImageToFile(GpImage *image, GDIPCONST WCHAR* filename,
2680                                         GDIPCONST CLSID *clsidEncoder,
2681                                         GDIPCONST EncoderParameters *encoderParams)
2682 {
2683     GpStatus stat;
2684     IStream *stream;
2685
2686     TRACE("%p (%s) %p %p\n", image, debugstr_w(filename), clsidEncoder, encoderParams);
2687
2688     if (!image || !filename|| !clsidEncoder)
2689         return InvalidParameter;
2690
2691     stat = GdipCreateStreamOnFile(filename, GENERIC_WRITE, &stream);
2692     if (stat != Ok)
2693         return GenericError;
2694
2695     stat = GdipSaveImageToStream(image, stream, clsidEncoder, encoderParams);
2696
2697     IStream_Release(stream);
2698     return stat;
2699 }
2700
2701 /*************************************************************************
2702  * Encoding functions -
2703  *   These functions encode an image in different image file formats.
2704  */
2705 #define BITMAP_FORMAT_BMP   0x4d42 /* "BM" */
2706 #define BITMAP_FORMAT_JPEG  0xd8ff
2707 #define BITMAP_FORMAT_GIF   0x4947
2708 #define BITMAP_FORMAT_PNG   0x5089
2709 #define BITMAP_FORMAT_APM   0xcdd7
2710
2711 static GpStatus encode_image_WIC(GpImage *image, IStream* stream,
2712     GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
2713 {
2714     GpStatus stat;
2715     GpBitmap *bitmap;
2716     IWICBitmapEncoder *encoder;
2717     IWICBitmapFrameEncode *frameencode;
2718     IPropertyBag2 *encoderoptions;
2719     HRESULT hr;
2720     UINT width, height;
2721     PixelFormat gdipformat=0;
2722     WICPixelFormatGUID wicformat;
2723     GpRect rc;
2724     BitmapData lockeddata;
2725     HRESULT initresult;
2726     UINT i;
2727
2728     if (image->type != ImageTypeBitmap)
2729         return GenericError;
2730
2731     bitmap = (GpBitmap*)image;
2732
2733     GdipGetImageWidth(image, &width);
2734     GdipGetImageHeight(image, &height);
2735
2736     rc.X = 0;
2737     rc.Y = 0;
2738     rc.Width = width;
2739     rc.Height = height;
2740
2741     initresult = CoInitialize(NULL);
2742
2743     hr = CoCreateInstance(clsid, NULL, CLSCTX_INPROC_SERVER,
2744         &IID_IWICBitmapEncoder, (void**)&encoder);
2745     if (FAILED(hr))
2746     {
2747         if (SUCCEEDED(initresult)) CoUninitialize();
2748         return hresult_to_status(hr);
2749     }
2750
2751     hr = IWICBitmapEncoder_Initialize(encoder, stream, WICBitmapEncoderNoCache);
2752
2753     if (SUCCEEDED(hr))
2754     {
2755         hr = IWICBitmapEncoder_CreateNewFrame(encoder, &frameencode, &encoderoptions);
2756     }
2757
2758     if (SUCCEEDED(hr)) /* created frame */
2759     {
2760         hr = IWICBitmapFrameEncode_Initialize(frameencode, encoderoptions);
2761
2762         if (SUCCEEDED(hr))
2763             hr = IWICBitmapFrameEncode_SetSize(frameencode, width, height);
2764
2765         if (SUCCEEDED(hr))
2766             /* FIXME: use the resolution from the image */
2767             hr = IWICBitmapFrameEncode_SetResolution(frameencode, 96.0, 96.0);
2768
2769         if (SUCCEEDED(hr))
2770         {
2771             for (i=0; wic_pixel_formats[i]; i++)
2772             {
2773                 if (wic_gdip_formats[i] == bitmap->format)
2774                     break;
2775             }
2776             if (wic_pixel_formats[i])
2777                 memcpy(&wicformat, wic_pixel_formats[i], sizeof(GUID));
2778             else
2779                 memcpy(&wicformat, &GUID_WICPixelFormat32bppBGRA, sizeof(GUID));
2780
2781             hr = IWICBitmapFrameEncode_SetPixelFormat(frameencode, &wicformat);
2782
2783             for (i=0; wic_pixel_formats[i]; i++)
2784             {
2785                 if (IsEqualGUID(&wicformat, wic_pixel_formats[i]))
2786                     break;
2787             }
2788             if (wic_pixel_formats[i])
2789                 gdipformat = wic_gdip_formats[i];
2790             else
2791             {
2792                 ERR("cannot provide pixel format %s\n", debugstr_guid(&wicformat));
2793                 hr = E_FAIL;
2794             }
2795         }
2796
2797         if (SUCCEEDED(hr))
2798         {
2799             stat = GdipBitmapLockBits(bitmap, &rc, ImageLockModeRead, gdipformat,
2800                 &lockeddata);
2801
2802             if (stat == Ok)
2803             {
2804                 UINT row_size = (lockeddata.Width * PIXELFORMATBPP(gdipformat) + 7)/8;
2805                 BYTE *row;
2806
2807                 /* write one row at a time in case stride is negative */
2808                 row = lockeddata.Scan0;
2809                 for (i=0; i<lockeddata.Height; i++)
2810                 {
2811                     hr = IWICBitmapFrameEncode_WritePixels(frameencode, 1, row_size, row_size, row);
2812                     if (FAILED(hr)) break;
2813                     row += lockeddata.Stride;
2814                 }
2815
2816                 GdipBitmapUnlockBits(bitmap, &lockeddata);
2817             }
2818             else
2819                 hr = E_FAIL;
2820         }
2821
2822         if (SUCCEEDED(hr))
2823             hr = IWICBitmapFrameEncode_Commit(frameencode);
2824
2825         IWICBitmapFrameEncode_Release(frameencode);
2826         IPropertyBag2_Release(encoderoptions);
2827     }
2828
2829     if (SUCCEEDED(hr))
2830         hr = IWICBitmapEncoder_Commit(encoder);
2831
2832     IWICBitmapEncoder_Release(encoder);
2833
2834     if (SUCCEEDED(initresult)) CoUninitialize();
2835
2836     return hresult_to_status(hr);
2837 }
2838
2839 static GpStatus encode_image_BMP(GpImage *image, IStream* stream,
2840     GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
2841 {
2842     return encode_image_WIC(image, stream, &CLSID_WICBmpEncoder, params);
2843 }
2844
2845 static GpStatus encode_image_png(GpImage *image, IStream* stream,
2846     GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
2847 {
2848     return encode_image_WIC(image, stream, &CLSID_WICPngEncoder, params);
2849 }
2850
2851 /*****************************************************************************
2852  * GdipSaveImageToStream [GDIPLUS.@]
2853  */
2854 GpStatus WINGDIPAPI GdipSaveImageToStream(GpImage *image, IStream* stream,
2855     GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
2856 {
2857     GpStatus stat;
2858     encode_image_func encode_image;
2859     int i;
2860
2861     TRACE("%p %p %p %p\n", image, stream, clsid, params);
2862
2863     if(!image || !stream)
2864         return InvalidParameter;
2865
2866     /* select correct encoder */
2867     encode_image = NULL;
2868     for (i = 0; i < NUM_CODECS; i++) {
2869         if ((codecs[i].info.Flags & ImageCodecFlagsEncoder) &&
2870             IsEqualCLSID(clsid, &codecs[i].info.Clsid))
2871             encode_image = codecs[i].encode_func;
2872     }
2873     if (encode_image == NULL)
2874         return UnknownImageFormat;
2875
2876     stat = encode_image(image, stream, clsid, params);
2877
2878     return stat;
2879 }
2880
2881 /*****************************************************************************
2882  * GdipGetImagePalette [GDIPLUS.@]
2883  */
2884 GpStatus WINGDIPAPI GdipGetImagePalette(GpImage *image, ColorPalette *palette, INT size)
2885 {
2886     TRACE("(%p,%p,%i)\n", image, palette, size);
2887
2888     if (!image || !palette)
2889         return InvalidParameter;
2890
2891     if (size < (sizeof(UINT)*2+sizeof(ARGB)*image->palette_count))
2892     {
2893         TRACE("<-- InsufficientBuffer\n");
2894         return InsufficientBuffer;
2895     }
2896
2897     palette->Flags = image->palette_flags;
2898     palette->Count = image->palette_count;
2899     memcpy(palette->Entries, image->palette_entries, sizeof(ARGB)*image->palette_count);
2900
2901     return Ok;
2902 }
2903
2904 /*****************************************************************************
2905  * GdipSetImagePalette [GDIPLUS.@]
2906  */
2907 GpStatus WINGDIPAPI GdipSetImagePalette(GpImage *image,
2908     GDIPCONST ColorPalette *palette)
2909 {
2910     TRACE("(%p,%p)\n", image, palette);
2911
2912     if(!image || !palette || palette->Count > 256)
2913         return InvalidParameter;
2914
2915     if (palette->Count > image->palette_size)
2916     {
2917         ARGB *new_palette;
2918
2919         new_palette = GdipAlloc(sizeof(ARGB) * palette->Count);
2920         if (!new_palette) return OutOfMemory;
2921
2922         GdipFree(image->palette_entries);
2923         image->palette_entries = new_palette;
2924         image->palette_size = palette->Count;
2925     }
2926
2927     image->palette_flags = palette->Flags;
2928     image->palette_count = palette->Count;
2929     memcpy(image->palette_entries, palette->Entries, sizeof(ARGB)*palette->Count);
2930
2931     return Ok;
2932 }
2933
2934 /*************************************************************************
2935  * Encoders -
2936  *   Structures that represent which formats we support for encoding.
2937  */
2938
2939 /* ImageCodecInfo creation routines taken from libgdiplus */
2940 static const WCHAR bmp_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'B', 'M', 'P', 0}; /* Built-in BMP */
2941 static const WCHAR bmp_extension[] = {'*','.','B', 'M', 'P',';', '*','.', 'D','I', 'B',';', '*','.', 'R', 'L', 'E',0}; /* *.BMP;*.DIB;*.RLE */
2942 static const WCHAR bmp_mimetype[] = {'i', 'm', 'a','g', 'e', '/', 'b', 'm', 'p', 0}; /* image/bmp */
2943 static const WCHAR bmp_format[] = {'B', 'M', 'P', 0}; /* BMP */
2944 static const BYTE bmp_sig_pattern[] = { 0x42, 0x4D };
2945 static const BYTE bmp_sig_mask[] = { 0xFF, 0xFF };
2946
2947 static const WCHAR jpeg_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'J','P','E','G', 0};
2948 static const WCHAR jpeg_extension[] = {'*','.','J','P','G',';', '*','.','J','P','E','G',';', '*','.','J','P','E',';', '*','.','J','F','I','F',0};
2949 static const WCHAR jpeg_mimetype[] = {'i','m','a','g','e','/','j','p','e','g', 0};
2950 static const WCHAR jpeg_format[] = {'J','P','E','G',0};
2951 static const BYTE jpeg_sig_pattern[] = { 0xFF, 0xD8 };
2952 static const BYTE jpeg_sig_mask[] = { 0xFF, 0xFF };
2953
2954 static const WCHAR gif_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'G','I','F', 0};
2955 static const WCHAR gif_extension[] = {'*','.','G','I','F',0};
2956 static const WCHAR gif_mimetype[] = {'i','m','a','g','e','/','g','i','f', 0};
2957 static const WCHAR gif_format[] = {'G','I','F',0};
2958 static const BYTE gif_sig_pattern[4] = "GIF8";
2959 static const BYTE gif_sig_mask[] = { 0xFF, 0xFF, 0xFF, 0xFF };
2960
2961 static const WCHAR tiff_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'T','I','F','F', 0};
2962 static const WCHAR tiff_extension[] = {'*','.','T','I','F','F',';','*','.','T','I','F',0};
2963 static const WCHAR tiff_mimetype[] = {'i','m','a','g','e','/','t','i','f','f', 0};
2964 static const WCHAR tiff_format[] = {'T','I','F','F',0};
2965 static const BYTE tiff_sig_pattern[] = {0x49,0x49,42,0,0x4d,0x4d,0,42};
2966 static const BYTE tiff_sig_mask[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
2967
2968 static const WCHAR emf_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'E','M','F', 0};
2969 static const WCHAR emf_extension[] = {'*','.','E','M','F',0};
2970 static const WCHAR emf_mimetype[] = {'i','m','a','g','e','/','x','-','e','m','f', 0};
2971 static const WCHAR emf_format[] = {'E','M','F',0};
2972 static const BYTE emf_sig_pattern[] = { 0x01, 0x00, 0x00, 0x00 };
2973 static const BYTE emf_sig_mask[] = { 0xFF, 0xFF, 0xFF, 0xFF };
2974
2975 static const WCHAR wmf_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'W','M','F', 0};
2976 static const WCHAR wmf_extension[] = {'*','.','W','M','F',0};
2977 static const WCHAR wmf_mimetype[] = {'i','m','a','g','e','/','x','-','w','m','f', 0};
2978 static const WCHAR wmf_format[] = {'W','M','F',0};
2979 static const BYTE wmf_sig_pattern[] = { 0xd7, 0xcd };
2980 static const BYTE wmf_sig_mask[] = { 0xFF, 0xFF };
2981
2982 static const WCHAR png_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'P','N','G', 0};
2983 static const WCHAR png_extension[] = {'*','.','P','N','G',0};
2984 static const WCHAR png_mimetype[] = {'i','m','a','g','e','/','p','n','g', 0};
2985 static const WCHAR png_format[] = {'P','N','G',0};
2986 static const BYTE png_sig_pattern[] = { 137, 80, 78, 71, 13, 10, 26, 10, };
2987 static const BYTE png_sig_mask[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
2988
2989 static const WCHAR ico_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'I','C','O', 0};
2990 static const WCHAR ico_extension[] = {'*','.','I','C','O',0};
2991 static const WCHAR ico_mimetype[] = {'i','m','a','g','e','/','x','-','i','c','o','n', 0};
2992 static const WCHAR ico_format[] = {'I','C','O',0};
2993 static const BYTE ico_sig_pattern[] = { 0x00, 0x00, 0x01, 0x00 };
2994 static const BYTE ico_sig_mask[] = { 0xFF, 0xFF, 0xFF, 0xFF };
2995
2996 static const struct image_codec codecs[NUM_CODECS] = {
2997     {
2998         { /* BMP */
2999             /* Clsid */              { 0x557cf400, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3000             /* FormatID */           { 0xb96b3cabU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3001             /* CodecName */          bmp_codecname,
3002             /* DllName */            NULL,
3003             /* FormatDescription */  bmp_format,
3004             /* FilenameExtension */  bmp_extension,
3005             /* MimeType */           bmp_mimetype,
3006             /* Flags */              ImageCodecFlagsEncoder | ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
3007             /* Version */            1,
3008             /* SigCount */           1,
3009             /* SigSize */            2,
3010             /* SigPattern */         bmp_sig_pattern,
3011             /* SigMask */            bmp_sig_mask,
3012         },
3013         encode_image_BMP,
3014         decode_image_bmp
3015     },
3016     {
3017         { /* JPEG */
3018             /* Clsid */              { 0x557cf401, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3019             /* FormatID */           { 0xb96b3caeU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3020             /* CodecName */          jpeg_codecname,
3021             /* DllName */            NULL,
3022             /* FormatDescription */  jpeg_format,
3023             /* FilenameExtension */  jpeg_extension,
3024             /* MimeType */           jpeg_mimetype,
3025             /* Flags */              ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
3026             /* Version */            1,
3027             /* SigCount */           1,
3028             /* SigSize */            2,
3029             /* SigPattern */         jpeg_sig_pattern,
3030             /* SigMask */            jpeg_sig_mask,
3031         },
3032         NULL,
3033         decode_image_jpeg
3034     },
3035     {
3036         { /* GIF */
3037             /* Clsid */              { 0x557cf402, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3038             /* FormatID */           { 0xb96b3cb0U, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3039             /* CodecName */          gif_codecname,
3040             /* DllName */            NULL,
3041             /* FormatDescription */  gif_format,
3042             /* FilenameExtension */  gif_extension,
3043             /* MimeType */           gif_mimetype,
3044             /* Flags */              ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
3045             /* Version */            1,
3046             /* SigCount */           1,
3047             /* SigSize */            4,
3048             /* SigPattern */         gif_sig_pattern,
3049             /* SigMask */            gif_sig_mask,
3050         },
3051         NULL,
3052         decode_image_gif
3053     },
3054     {
3055         { /* TIFF */
3056             /* Clsid */              { 0x557cf405, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3057             /* FormatID */           { 0xb96b3cb1U, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3058             /* CodecName */          tiff_codecname,
3059             /* DllName */            NULL,
3060             /* FormatDescription */  tiff_format,
3061             /* FilenameExtension */  tiff_extension,
3062             /* MimeType */           tiff_mimetype,
3063             /* Flags */              ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
3064             /* Version */            1,
3065             /* SigCount */           2,
3066             /* SigSize */            4,
3067             /* SigPattern */         tiff_sig_pattern,
3068             /* SigMask */            tiff_sig_mask,
3069         },
3070         NULL,
3071         decode_image_tiff
3072     },
3073     {
3074         { /* EMF */
3075             /* Clsid */              { 0x557cf403, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3076             /* FormatID */           { 0xb96b3cacU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3077             /* CodecName */          emf_codecname,
3078             /* DllName */            NULL,
3079             /* FormatDescription */  emf_format,
3080             /* FilenameExtension */  emf_extension,
3081             /* MimeType */           emf_mimetype,
3082             /* Flags */              ImageCodecFlagsDecoder | ImageCodecFlagsSupportVector | ImageCodecFlagsBuiltin,
3083             /* Version */            1,
3084             /* SigCount */           1,
3085             /* SigSize */            4,
3086             /* SigPattern */         emf_sig_pattern,
3087             /* SigMask */            emf_sig_mask,
3088         },
3089         NULL,
3090         decode_image_olepicture_metafile
3091     },
3092     {
3093         { /* WMF */
3094             /* Clsid */              { 0x557cf404, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3095             /* FormatID */           { 0xb96b3cadU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3096             /* CodecName */          wmf_codecname,
3097             /* DllName */            NULL,
3098             /* FormatDescription */  wmf_format,
3099             /* FilenameExtension */  wmf_extension,
3100             /* MimeType */           wmf_mimetype,
3101             /* Flags */              ImageCodecFlagsDecoder | ImageCodecFlagsSupportVector | ImageCodecFlagsBuiltin,
3102             /* Version */            1,
3103             /* SigCount */           1,
3104             /* SigSize */            2,
3105             /* SigPattern */         wmf_sig_pattern,
3106             /* SigMask */            wmf_sig_mask,
3107         },
3108         NULL,
3109         decode_image_olepicture_metafile
3110     },
3111     {
3112         { /* PNG */
3113             /* Clsid */              { 0x557cf406, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3114             /* FormatID */           { 0xb96b3cafU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3115             /* CodecName */          png_codecname,
3116             /* DllName */            NULL,
3117             /* FormatDescription */  png_format,
3118             /* FilenameExtension */  png_extension,
3119             /* MimeType */           png_mimetype,
3120             /* Flags */              ImageCodecFlagsEncoder | ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
3121             /* Version */            1,
3122             /* SigCount */           1,
3123             /* SigSize */            8,
3124             /* SigPattern */         png_sig_pattern,
3125             /* SigMask */            png_sig_mask,
3126         },
3127         encode_image_png,
3128         decode_image_png
3129     },
3130     {
3131         { /* ICO */
3132             /* Clsid */              { 0x557cf407, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3133             /* FormatID */           { 0xb96b3cabU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3134             /* CodecName */          ico_codecname,
3135             /* DllName */            NULL,
3136             /* FormatDescription */  ico_format,
3137             /* FilenameExtension */  ico_extension,
3138             /* MimeType */           ico_mimetype,
3139             /* Flags */              ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
3140             /* Version */            1,
3141             /* SigCount */           1,
3142             /* SigSize */            4,
3143             /* SigPattern */         ico_sig_pattern,
3144             /* SigMask */            ico_sig_mask,
3145         },
3146         NULL,
3147         decode_image_icon
3148     },
3149 };
3150
3151 /*****************************************************************************
3152  * GdipGetImageDecodersSize [GDIPLUS.@]
3153  */
3154 GpStatus WINGDIPAPI GdipGetImageDecodersSize(UINT *numDecoders, UINT *size)
3155 {
3156     int decoder_count=0;
3157     int i;
3158     TRACE("%p %p\n", numDecoders, size);
3159
3160     if (!numDecoders || !size)
3161         return InvalidParameter;
3162
3163     for (i=0; i<NUM_CODECS; i++)
3164     {
3165         if (codecs[i].info.Flags & ImageCodecFlagsDecoder)
3166             decoder_count++;
3167     }
3168
3169     *numDecoders = decoder_count;
3170     *size = decoder_count * sizeof(ImageCodecInfo);
3171
3172     return Ok;
3173 }
3174
3175 /*****************************************************************************
3176  * GdipGetImageDecoders [GDIPLUS.@]
3177  */
3178 GpStatus WINGDIPAPI GdipGetImageDecoders(UINT numDecoders, UINT size, ImageCodecInfo *decoders)
3179 {
3180     int i, decoder_count=0;
3181     TRACE("%u %u %p\n", numDecoders, size, decoders);
3182
3183     if (!decoders ||
3184         size != numDecoders * sizeof(ImageCodecInfo))
3185         return GenericError;
3186
3187     for (i=0; i<NUM_CODECS; i++)
3188     {
3189         if (codecs[i].info.Flags & ImageCodecFlagsDecoder)
3190         {
3191             if (decoder_count == numDecoders) return GenericError;
3192             memcpy(&decoders[decoder_count], &codecs[i].info, sizeof(ImageCodecInfo));
3193             decoder_count++;
3194         }
3195     }
3196
3197     if (decoder_count < numDecoders) return GenericError;
3198
3199     return Ok;
3200 }
3201
3202 /*****************************************************************************
3203  * GdipGetImageEncodersSize [GDIPLUS.@]
3204  */
3205 GpStatus WINGDIPAPI GdipGetImageEncodersSize(UINT *numEncoders, UINT *size)
3206 {
3207     int encoder_count=0;
3208     int i;
3209     TRACE("%p %p\n", numEncoders, size);
3210
3211     if (!numEncoders || !size)
3212         return InvalidParameter;
3213
3214     for (i=0; i<NUM_CODECS; i++)
3215     {
3216         if (codecs[i].info.Flags & ImageCodecFlagsEncoder)
3217             encoder_count++;
3218     }
3219
3220     *numEncoders = encoder_count;
3221     *size = encoder_count * sizeof(ImageCodecInfo);
3222
3223     return Ok;
3224 }
3225
3226 /*****************************************************************************
3227  * GdipGetImageEncoders [GDIPLUS.@]
3228  */
3229 GpStatus WINGDIPAPI GdipGetImageEncoders(UINT numEncoders, UINT size, ImageCodecInfo *encoders)
3230 {
3231     int i, encoder_count=0;
3232     TRACE("%u %u %p\n", numEncoders, size, encoders);
3233
3234     if (!encoders ||
3235         size != numEncoders * sizeof(ImageCodecInfo))
3236         return GenericError;
3237
3238     for (i=0; i<NUM_CODECS; i++)
3239     {
3240         if (codecs[i].info.Flags & ImageCodecFlagsEncoder)
3241         {
3242             if (encoder_count == numEncoders) return GenericError;
3243             memcpy(&encoders[encoder_count], &codecs[i].info, sizeof(ImageCodecInfo));
3244             encoder_count++;
3245         }
3246     }
3247
3248     if (encoder_count < numEncoders) return GenericError;
3249
3250     return Ok;
3251 }
3252
3253 /*****************************************************************************
3254  * GdipCreateBitmapFromHBITMAP [GDIPLUS.@]
3255  */
3256 GpStatus WINGDIPAPI GdipCreateBitmapFromHBITMAP(HBITMAP hbm, HPALETTE hpal, GpBitmap** bitmap)
3257 {
3258     BITMAP bm;
3259     GpStatus retval;
3260     PixelFormat format;
3261     BitmapData lockeddata;
3262     INT y;
3263
3264     TRACE("%p %p %p\n", hbm, hpal, bitmap);
3265
3266     if(!hbm || !bitmap)
3267         return InvalidParameter;
3268
3269     /* TODO: Support for device-dependent bitmaps */
3270     if(hpal){
3271         FIXME("no support for device-dependent bitmaps\n");
3272         return NotImplemented;
3273     }
3274
3275     if (GetObjectA(hbm, sizeof(bm), &bm) != sizeof(bm))
3276             return InvalidParameter;
3277
3278     /* TODO: Figure out the correct format for 16, 32, 64 bpp */
3279     switch(bm.bmBitsPixel) {
3280         case 1:
3281             format = PixelFormat1bppIndexed;
3282             break;
3283         case 4:
3284             format = PixelFormat4bppIndexed;
3285             break;
3286         case 8:
3287             format = PixelFormat8bppIndexed;
3288             break;
3289         case 24:
3290             format = PixelFormat24bppRGB;
3291             break;
3292         case 32:
3293             format = PixelFormat32bppRGB;
3294             break;
3295         case 48:
3296             format = PixelFormat48bppRGB;
3297             break;
3298         default:
3299             FIXME("don't know how to handle %d bpp\n", bm.bmBitsPixel);
3300             return InvalidParameter;
3301     }
3302
3303     retval = GdipCreateBitmapFromScan0(bm.bmWidth, bm.bmHeight, 0,
3304         format, NULL, bitmap);
3305
3306     if (retval == Ok)
3307     {
3308         retval = GdipBitmapLockBits(*bitmap, NULL, ImageLockModeWrite,
3309             format, &lockeddata);
3310         if (retval == Ok)
3311         {
3312             if (bm.bmBits)
3313             {
3314                 for (y=0; y<bm.bmHeight; y++)
3315                 {
3316                     memcpy((BYTE*)lockeddata.Scan0+lockeddata.Stride*y,
3317                            (BYTE*)bm.bmBits+bm.bmWidthBytes*(bm.bmHeight-1-y),
3318                            bm.bmWidthBytes);
3319                 }
3320             }
3321             else
3322             {
3323                 HDC hdc;
3324                 HBITMAP oldhbm;
3325                 BITMAPINFO *pbmi;
3326                 INT src_height, dst_stride;
3327                 BYTE *dst_bits;
3328
3329                 hdc = CreateCompatibleDC(NULL);
3330                 oldhbm = SelectObject(hdc, hbm);
3331
3332                 pbmi = GdipAlloc(sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
3333
3334                 if (pbmi)
3335                 {
3336                     pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
3337                     pbmi->bmiHeader.biBitCount = 0;
3338
3339                     GetDIBits(hdc, hbm, 0, 0, NULL, pbmi, DIB_RGB_COLORS);
3340
3341                     src_height = abs(pbmi->bmiHeader.biHeight);
3342
3343                     if (pbmi->bmiHeader.biHeight > 0)
3344                     {
3345                         dst_bits = (BYTE*)lockeddata.Scan0+lockeddata.Stride*(src_height-1);
3346                         dst_stride = -lockeddata.Stride;
3347                     }
3348                     else
3349                     {
3350                         dst_bits = lockeddata.Scan0;
3351                         dst_stride = lockeddata.Stride;
3352                     }
3353
3354                     for (y=0; y<src_height; y++)
3355                     {
3356                         GetDIBits(hdc, hbm, y, 1, dst_bits+dst_stride*y,
3357                             pbmi, DIB_RGB_COLORS);
3358                     }
3359
3360                     GdipFree(pbmi);
3361                 }
3362                 else
3363                     retval = OutOfMemory;
3364
3365                 SelectObject(hdc, oldhbm);
3366                 DeleteDC(hdc);
3367             }
3368
3369             GdipBitmapUnlockBits(*bitmap, &lockeddata);
3370         }
3371     }
3372
3373     return retval;
3374 }
3375
3376 GpStatus WINGDIPAPI GdipDeleteEffect(CGpEffect *effect)
3377 {
3378     FIXME("(%p): stub\n", effect);
3379     /* note: According to Jose Roca's GDI+ Docs, this is not implemented
3380      * in Windows's gdiplus */
3381     return NotImplemented;
3382 }
3383
3384 /*****************************************************************************
3385  * GdipSetEffectParameters [GDIPLUS.@]
3386  */
3387 GpStatus WINGDIPAPI GdipSetEffectParameters(CGpEffect *effect,
3388     const VOID *params, const UINT size)
3389 {
3390     static int calls;
3391
3392     TRACE("(%p,%p,%u)\n", effect, params, size);
3393
3394     if(!(calls++))
3395         FIXME("not implemented\n");
3396
3397     return NotImplemented;
3398 }
3399
3400 /*****************************************************************************
3401  * GdipGetImageFlags [GDIPLUS.@]
3402  */
3403 GpStatus WINGDIPAPI GdipGetImageFlags(GpImage *image, UINT *flags)
3404 {
3405     TRACE("%p %p\n", image, flags);
3406
3407     if(!image || !flags)
3408         return InvalidParameter;
3409
3410     *flags = image->flags;
3411
3412     return Ok;
3413 }
3414
3415 GpStatus WINGDIPAPI GdipTestControl(GpTestControlEnum control, void *param)
3416 {
3417     TRACE("(%d, %p)\n", control, param);
3418
3419     switch(control){
3420         case TestControlForceBilinear:
3421             if(param)
3422                 FIXME("TestControlForceBilinear not handled\n");
3423             break;
3424         case TestControlNoICM:
3425             if(param)
3426                 FIXME("TestControlNoICM not handled\n");
3427             break;
3428         case TestControlGetBuildNumber:
3429             *((DWORD*)param) = 3102;
3430             break;
3431     }
3432
3433     return Ok;
3434 }
3435
3436 GpStatus WINGDIPAPI GdipRecordMetafileFileName(GDIPCONST WCHAR* fileName,
3437                             HDC hdc, EmfType type, GDIPCONST GpRectF *pFrameRect,
3438                             MetafileFrameUnit frameUnit, GDIPCONST WCHAR *desc,
3439                             GpMetafile **metafile)
3440 {
3441     FIXME("%s %p %d %p %d %s %p stub!\n", debugstr_w(fileName), hdc, type, pFrameRect,
3442                                  frameUnit, debugstr_w(desc), metafile);
3443
3444     return NotImplemented;
3445 }
3446
3447 GpStatus WINGDIPAPI GdipRecordMetafileFileNameI(GDIPCONST WCHAR* fileName, HDC hdc, EmfType type,
3448                             GDIPCONST GpRect *pFrameRect, MetafileFrameUnit frameUnit,
3449                             GDIPCONST WCHAR *desc, GpMetafile **metafile)
3450 {
3451     FIXME("%s %p %d %p %d %s %p stub!\n", debugstr_w(fileName), hdc, type, pFrameRect,
3452                                  frameUnit, debugstr_w(desc), metafile);
3453
3454     return NotImplemented;
3455 }
3456
3457 GpStatus WINGDIPAPI GdipImageForceValidation(GpImage *image)
3458 {
3459     FIXME("%p\n", image);
3460
3461     return Ok;
3462 }
3463
3464 /*****************************************************************************
3465  * GdipGetImageThumbnail [GDIPLUS.@]
3466  */
3467 GpStatus WINGDIPAPI GdipGetImageThumbnail(GpImage *image, UINT width, UINT height,
3468                             GpImage **ret_image, GetThumbnailImageAbort cb,
3469                             VOID * cb_data)
3470 {
3471     FIXME("(%p %u %u %p %p %p) stub\n",
3472         image, width, height, ret_image, cb, cb_data);
3473     return NotImplemented;
3474 }
3475
3476 /*****************************************************************************
3477  * GdipImageRotateFlip [GDIPLUS.@]
3478  */
3479 GpStatus WINGDIPAPI GdipImageRotateFlip(GpImage *image, RotateFlipType type)
3480 {
3481     GpBitmap *new_bitmap;
3482     GpBitmap *bitmap;
3483     int bpp, bytesperpixel;
3484     int rotate_90, flip_x, flip_y;
3485     int src_x_offset, src_y_offset;
3486     LPBYTE src_origin;
3487     UINT x, y, width, height;
3488     BitmapData src_lock, dst_lock;
3489     GpStatus stat;
3490
3491     TRACE("(%p, %u)\n", image, type);
3492
3493     rotate_90 = type&1;
3494     flip_x = (type&6) == 2 || (type&6) == 4;
3495     flip_y = (type&3) == 1 || (type&3) == 2;
3496
3497     if (image->type != ImageTypeBitmap)
3498     {
3499         FIXME("Not implemented for type %i\n", image->type);
3500         return NotImplemented;
3501     }
3502
3503     bitmap = (GpBitmap*)image;
3504     bpp = PIXELFORMATBPP(bitmap->format);
3505
3506     if (bpp < 8)
3507     {
3508         FIXME("Not implemented for %i bit images\n", bpp);
3509         return NotImplemented;
3510     }
3511
3512     if (rotate_90)
3513     {
3514         width = bitmap->height;
3515         height = bitmap->width;
3516     }
3517     else
3518     {
3519         width = bitmap->width;
3520         height = bitmap->height;
3521     }
3522
3523     bytesperpixel = bpp/8;
3524
3525     stat = GdipCreateBitmapFromScan0(width, height, 0, bitmap->format, NULL, &new_bitmap);
3526
3527     if (stat != Ok)
3528         return stat;
3529
3530     stat = GdipBitmapLockBits(bitmap, NULL, ImageLockModeRead, bitmap->format, &src_lock);
3531
3532     if (stat == Ok)
3533     {
3534         stat = GdipBitmapLockBits(new_bitmap, NULL, ImageLockModeWrite, bitmap->format, &dst_lock);
3535
3536         if (stat == Ok)
3537         {
3538             LPBYTE src_row, src_pixel;
3539             LPBYTE dst_row, dst_pixel;
3540
3541             src_origin = src_lock.Scan0;
3542             if (flip_x) src_origin += bytesperpixel * (bitmap->width - 1);
3543             if (flip_y) src_origin += src_lock.Stride * (bitmap->height - 1);
3544
3545             if (rotate_90)
3546             {
3547                 if (flip_y) src_x_offset = -src_lock.Stride;
3548                 else src_x_offset = src_lock.Stride;
3549                 if (flip_x) src_y_offset = -bytesperpixel;
3550                 else src_y_offset = bytesperpixel;
3551             }
3552             else
3553             {
3554                 if (flip_x) src_x_offset = -bytesperpixel;
3555                 else src_x_offset = bytesperpixel;
3556                 if (flip_y) src_y_offset = -src_lock.Stride;
3557                 else src_y_offset = src_lock.Stride;
3558             }
3559
3560             src_row = src_origin;
3561             dst_row = dst_lock.Scan0;
3562             for (y=0; y<height; y++)
3563             {
3564                 src_pixel = src_row;
3565                 dst_pixel = dst_row;
3566                 for (x=0; x<width; x++)
3567                 {
3568                     /* FIXME: This could probably be faster without memcpy. */
3569                     memcpy(dst_pixel, src_pixel, bytesperpixel);
3570                     dst_pixel += bytesperpixel;
3571                     src_pixel += src_x_offset;
3572                 }
3573                 src_row += src_y_offset;
3574                 dst_row += dst_lock.Stride;
3575             }
3576
3577             GdipBitmapUnlockBits(new_bitmap, &dst_lock);
3578         }
3579
3580         GdipBitmapUnlockBits(bitmap, &src_lock);
3581     }
3582
3583     if (stat == Ok)
3584         move_bitmap(bitmap, new_bitmap, FALSE);
3585     else
3586         GdipDisposeImage((GpImage*)new_bitmap);
3587
3588     return stat;
3589 }