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