dlls/windowscodecs/wincodecs_private.h

   1 /*
   2  * Copyright 2009 Vincent Povirk for CodeWeavers
   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 #ifndef WINCODECS_PRIVATE_H
  20 #define WINCODECS_PRIVATE_H
  21
  22 #include "wincodec.h"
  23 #include "wincodecsdk.h"
  24
  25 #include "wine/debug.h"
  26
  27 DEFINE_GUID(CLSID_WineTgaDecoder, 0xb11fc79a,0x67cc,0x43e6,0xa9,0xce,0xe3,0xd5,0x49,0x45,0xd3,0x04);
  28
  29 DEFINE_GUID(CLSID_WICIcnsEncoder, 0x312fb6f1,0xb767,0x409d,0x8a,0x6d,0x0f,0xc1,0x54,0xd4,0xf0,0x5c);
  30
  31 DEFINE_GUID(GUID_WineContainerFormatTga, 0x0c44fda1,0xa5c5,0x4298,0x96,0x85,0x47,0x3f,0xc1,0x7c,0xd3,0x22);
  32
  33 DEFINE_GUID(GUID_WineContainerFormatIcns, 0xe4cd3e69,0x4436,0x4363,0x98,0x1d,0xcc,0xf0,0x5a,0x87,0x4c,0x73);
  34
  35 DEFINE_GUID(GUID_VendorWine, 0xddf46da1,0x7dc1,0x404e,0x98,0xf2,0xef,0xa4,0x8d,0xfc,0x95,0x0a);
  36
  37 extern IID IID_IMILBitmap;
  38 extern IID IID_IMILBitmapSource;
  39 extern IID IID_IMILBitmapLock;
  40 extern IID IID_IMILBitmapScaler;
  41 extern IID IID_IMILFormatConverter;
  42 extern IID IID_IMILPalette;
  43
  44 #define INTERFACE IMILBitmapSource
  45 DECLARE_INTERFACE_(IMILBitmapSource,IUnknown)
  46 {
  47     /*** IUnknown methods ***/
  48     STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID,void **) PURE;
  49     STDMETHOD_(ULONG,AddRef)(THIS) PURE;
  50     STDMETHOD_(ULONG,Release)(THIS) PURE;
  51     /*** IWICBitmapSource methods ***/
  52     STDMETHOD_(HRESULT,GetSize)(THIS_ UINT *,UINT *) PURE;
  53     STDMETHOD_(HRESULT,GetPixelFormat)(THIS_ int *) PURE;
  54     STDMETHOD_(HRESULT,GetResolution)(THIS_ double *,double *) PURE;
  55     STDMETHOD_(HRESULT,CopyPalette)(THIS_ IWICPalette *) PURE;
  56     STDMETHOD_(HRESULT,CopyPixels)(THIS_ const WICRect *,UINT,UINT,BYTE *) PURE;
  57 };
  58 #undef INTERFACE
  59
  60 #define INTERFACE IMILBitmap
  61 DECLARE_INTERFACE_(IMILBitmap,IMILBitmapSource)
  62 {
  63     /*** IUnknown methods ***/
  64     STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID,void **) PURE;
  65     STDMETHOD_(ULONG,AddRef)(THIS) PURE;
  66     STDMETHOD_(ULONG,Release)(THIS) PURE;
  67     /*** IWICBitmapSource methods ***/
  68     STDMETHOD_(HRESULT,GetSize)(THIS_ UINT *,UINT *) PURE;
  69     STDMETHOD_(HRESULT,GetPixelFormat)(THIS_ int *) PURE;
  70     STDMETHOD_(HRESULT,GetResolution)(THIS_ double *,double *) PURE;
  71     STDMETHOD_(HRESULT,CopyPalette)(THIS_ IWICPalette *) PURE;
  72     STDMETHOD_(HRESULT,CopyPixels)(THIS_ const WICRect *,UINT,UINT,BYTE *) PURE;
  73     /*** IMILBitmap methods ***/
  74     STDMETHOD_(HRESULT,unknown1)(THIS_ void **) PURE;
  75     STDMETHOD_(HRESULT,Lock)(THIS_ const WICRect *,DWORD,IWICBitmapLock **) PURE;
  76     STDMETHOD_(HRESULT,Unlock)(THIS_ IWICBitmapLock *) PURE;
  77     STDMETHOD_(HRESULT,SetPalette)(THIS_ IWICPalette *) PURE;
  78     STDMETHOD_(HRESULT,SetResolution)(THIS_ double,double) PURE;
  79     STDMETHOD_(HRESULT,AddDirtyRect)(THIS_ const WICRect *) PURE;
  80 };
  81 #undef INTERFACE
  82
  83 #define INTERFACE IMILBitmapScaler
  84 DECLARE_INTERFACE_(IMILBitmapScaler,IMILBitmapSource)
  85 {
  86     /*** IUnknown methods ***/
  87     STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID,void **) PURE;
  88     STDMETHOD_(ULONG,AddRef)(THIS) PURE;
  89     STDMETHOD_(ULONG,Release)(THIS) PURE;
  90     /*** IWICBitmapSource methods ***/
  91     STDMETHOD_(HRESULT,GetSize)(THIS_ UINT *,UINT *) PURE;
  92     STDMETHOD_(HRESULT,GetPixelFormat)(THIS_ int *) PURE;
  93     STDMETHOD_(HRESULT,GetResolution)(THIS_ double *,double *) PURE;
  94     STDMETHOD_(HRESULT,CopyPalette)(THIS_ IWICPalette *) PURE;
  95     STDMETHOD_(HRESULT,CopyPixels)(THIS_ const WICRect *,UINT,UINT,BYTE *) PURE;
  96     /*** IMILBitmapScaler methods ***/
  97     STDMETHOD_(HRESULT,unknown1)(THIS_ void **) PURE;
  98     STDMETHOD_(HRESULT,Initialize)(THIS_ IMILBitmapSource *,UINT,UINT,WICBitmapInterpolationMode) PURE;
  99 };
 100 #undef INTERFACE
 101
 102 #define THISCALLMETHOD_(type,method)  type (__thiscall *method)
 103
 104 #define INTERFACE IMILUnknown1
 105 DECLARE_INTERFACE_(IMILUnknown1,IUnknown)
 106 {
 107     /*** IUnknown methods ***/
 108     STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID,void **) PURE;
 109     STDMETHOD_(ULONG,AddRef)(THIS) PURE;
 110     STDMETHOD_(ULONG,Release)(THIS) PURE;
 111     THISCALLMETHOD_(void,unknown1)(THIS_ void*) PURE;
 112     STDMETHOD_(HRESULT,unknown2)(THIS_ void*, void*) PURE;
 113     THISCALLMETHOD_(HRESULT,unknown3)(THIS_ void*) PURE;
 114     STDMETHOD_(HRESULT,unknown4)(THIS_ void*) PURE;
 115     STDMETHOD_(HRESULT,unknown5)(THIS_ void*) PURE;
 116     STDMETHOD_(HRESULT,unknown6)(THIS_ DWORD64) PURE;
 117     STDMETHOD_(HRESULT,unknown7)(THIS_ void*) PURE;
 118     THISCALLMETHOD_(HRESULT,unknown8)(THIS) PURE;
 119 };
 120 #undef INTERFACE
 121
 122 #define INTERFACE IMILUnknown2
 123 DECLARE_INTERFACE_(IMILUnknown2,IUnknown)
 124 {
 125     /*** IUnknown methods ***/
 126     STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID,void **) PURE;
 127     STDMETHOD_(ULONG,AddRef)(THIS) PURE;
 128     STDMETHOD_(ULONG,Release)(THIS) PURE;
 129     /*** unknown methods ***/
 130     STDMETHOD_(HRESULT,unknown1)(THIS_ void *,void **) PURE;
 131     STDMETHOD_(HRESULT,unknown2)(THIS_ void *,void *) PURE;
 132     STDMETHOD_(HRESULT,unknown3)(THIS_ void *) PURE;
 133 };
 134 #undef INTERFACE
 135
 136 HRESULT create_instance(const CLSID *clsid, const IID *iid, void **ppv) DECLSPEC_HIDDEN;
 137
 138 typedef HRESULT(*class_constructor)(REFIID,void**);
 139 extern HRESULT FormatConverter_CreateInstance(REFIID riid, void** ppv) DECLSPEC_HIDDEN;
 140 extern HRESULT ImagingFactory_CreateInstance(REFIID riid, void** ppv) DECLSPEC_HIDDEN;
 141 extern HRESULT BmpDecoder_CreateInstance(REFIID riid, void** ppv) DECLSPEC_HIDDEN;
 142 extern HRESULT PngDecoder_CreateInstance(REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 143 extern HRESULT PngEncoder_CreateInstance(REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 144 extern HRESULT BmpEncoder_CreateInstance(REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 145 extern HRESULT DibDecoder_CreateInstance(REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 146 extern HRESULT GifDecoder_CreateInstance(REFIID riid, void** ppv) DECLSPEC_HIDDEN;
 147 extern HRESULT GifEncoder_CreateInstance(REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 148 extern HRESULT IcoDecoder_CreateInstance(REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 149 extern HRESULT JpegDecoder_CreateInstance(REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 150 extern HRESULT JpegEncoder_CreateInstance(REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 151 extern HRESULT TiffDecoder_CreateInstance(REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 152 extern HRESULT TiffEncoder_CreateInstance(REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 153 extern HRESULT IcnsEncoder_CreateInstance(REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 154 extern HRESULT TgaDecoder_CreateInstance(REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 155 extern HRESULT DdsDecoder_CreateInstance(REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 156 extern HRESULT DdsEncoder_CreateInstance(REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 157
 158 extern HRESULT BitmapImpl_Create(UINT uiWidth, UINT uiHeight,
 159     UINT stride, UINT datasize, void *view, UINT offset,
 160     REFWICPixelFormatGUID pixelFormat, WICBitmapCreateCacheOption option,
 161     IWICBitmap **ppIBitmap) DECLSPEC_HIDDEN;
 162 extern HRESULT BitmapScaler_Create(IWICBitmapScaler **scaler) DECLSPEC_HIDDEN;
 163 extern HRESULT FlipRotator_Create(IWICBitmapFlipRotator **fliprotator) DECLSPEC_HIDDEN;
 164 extern HRESULT PaletteImpl_Create(IWICPalette **palette) DECLSPEC_HIDDEN;
 165 extern HRESULT StreamImpl_Create(IWICStream **stream) DECLSPEC_HIDDEN;
 166 extern HRESULT ColorContext_Create(IWICColorContext **context) DECLSPEC_HIDDEN;
 167 extern HRESULT ColorTransform_Create(IWICColorTransform **transform) DECLSPEC_HIDDEN;
 168 extern HRESULT BitmapClipper_Create(IWICBitmapClipper **clipper) DECLSPEC_HIDDEN;
 169
 170 extern HRESULT copy_pixels(UINT bpp, const BYTE *srcbuffer,
 171     UINT srcwidth, UINT srcheight, INT srcstride,
 172     const WICRect *rc, UINT dststride, UINT dstbuffersize, BYTE *dstbuffer) DECLSPEC_HIDDEN;
 173
 174 extern HRESULT configure_write_source(IWICBitmapFrameEncode *iface,
 175     IWICBitmapSource *source, const WICRect *prc,
 176     const WICPixelFormatGUID *format,
 177     INT width, INT height, double xres, double yres) DECLSPEC_HIDDEN;
 178
 179 extern HRESULT write_source(IWICBitmapFrameEncode *iface,
 180     IWICBitmapSource *source, const WICRect *prc,
 181     const WICPixelFormatGUID *format, UINT bpp, BOOL need_palette,
 182     INT width, INT height) DECLSPEC_HIDDEN;
 183
 184 extern void reverse_bgr8(UINT bytesperpixel, LPBYTE bits, UINT width, UINT height, INT stride) DECLSPEC_HIDDEN;
 185
 186 extern HRESULT get_pixelformat_bpp(const GUID *pixelformat, UINT *bpp) DECLSPEC_HIDDEN;
 187
 188 extern HRESULT CreatePropertyBag2(const PROPBAG2 *options, UINT count,
 189                                   IPropertyBag2 **property) DECLSPEC_HIDDEN;
 190
 191 extern HRESULT CreateComponentInfo(REFCLSID clsid, IWICComponentInfo **ppIInfo) DECLSPEC_HIDDEN;
 192 extern void ReleaseComponentInfos(void) DECLSPEC_HIDDEN;
 193 extern HRESULT CreateComponentEnumerator(DWORD componentTypes, DWORD options, IEnumUnknown **ppIEnumUnknown) DECLSPEC_HIDDEN;
 194 extern HRESULT get_decoder_info(REFCLSID clsid, IWICBitmapDecoderInfo **info) DECLSPEC_HIDDEN;
 195
 196 typedef struct BmpDecoder BmpDecoder;
 197
 198 extern HRESULT IcoDibDecoder_CreateInstance(BmpDecoder **ppDecoder) DECLSPEC_HIDDEN;
 199 extern void BmpDecoder_GetWICDecoder(BmpDecoder *This, IWICBitmapDecoder **ppDecoder) DECLSPEC_HIDDEN;
 200 extern void BmpDecoder_FindIconMask(BmpDecoder *This, ULONG *mask_offset, int *topdown) DECLSPEC_HIDDEN;
 201
 202 typedef struct _MetadataItem
 203 {
 204     PROPVARIANT schema;
 205     PROPVARIANT id;
 206     PROPVARIANT value;
 207 } MetadataItem;
 208
 209 typedef struct _MetadataHandlerVtbl
 210 {
 211     int is_writer;
 212     const CLSID *clsid;
 213     HRESULT (*fnLoad)(IStream *stream, const GUID *preferred_vendor,
 214         DWORD persist_options, MetadataItem **items, DWORD *item_count);
 215     HRESULT (*fnSave)(IStream *stream, DWORD persist_options,
 216         const MetadataItem *items, DWORD item_count);
 217     HRESULT (*fnGetSizeMax)(const MetadataItem *items, DWORD item_count,
 218         ULARGE_INTEGER *size);
 219 } MetadataHandlerVtbl;
 220
 221 extern HRESULT MetadataReader_Create(const MetadataHandlerVtbl *vtable, REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 222
 223 extern HRESULT UnknownMetadataReader_CreateInstance(REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 224 extern HRESULT IfdMetadataReader_CreateInstance(REFIID iid, void **ppv) DECLSPEC_HIDDEN;
 225 extern HRESULT PngChrmReader_CreateInstance(REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 226 extern HRESULT PngGamaReader_CreateInstance(REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 227 extern HRESULT PngTextReader_CreateInstance(REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 228 extern HRESULT LSDReader_CreateInstance(REFIID iid, void **ppv) DECLSPEC_HIDDEN;
 229 extern HRESULT IMDReader_CreateInstance(REFIID iid, void **ppv) DECLSPEC_HIDDEN;
 230 extern HRESULT GCEReader_CreateInstance(REFIID iid, void **ppv) DECLSPEC_HIDDEN;
 231 extern HRESULT APEReader_CreateInstance(REFIID iid, void **ppv) DECLSPEC_HIDDEN;
 232 extern HRESULT GifCommentReader_CreateInstance(REFIID iid, void **ppv) DECLSPEC_HIDDEN;
 233 extern HRESULT MetadataQueryReader_CreateInstance(IWICMetadataBlockReader *, const WCHAR *, IWICMetadataQueryReader **) DECLSPEC_HIDDEN;
 234 extern HRESULT MetadataQueryWriter_CreateInstance(IWICMetadataBlockWriter *, const WCHAR *, IWICMetadataQueryWriter **) DECLSPEC_HIDDEN;
 235 extern HRESULT stream_initialize_from_filehandle(IWICStream *iface, HANDLE hfile) DECLSPEC_HIDDEN;
 236
 237 static inline WCHAR *heap_strdupW(const WCHAR *src)
 238 {
 239     WCHAR *dst;
 240     SIZE_T len;
 241     if (!src) return NULL;
 242     len = (lstrlenW(src) + 1) * sizeof(WCHAR);
 243     if ((dst = HeapAlloc(GetProcessHeap(), 0, len))) memcpy(dst, src, len);
 244     return dst;
 245 }
 246
 247 static inline const char *debug_wic_rect(const WICRect *rect)
 248 {
 249     if (!rect) return "(null)";
 250     return wine_dbg_sprintf("(%u,%u)-(%u,%u)", rect->X, rect->Y, rect->Width, rect->Height);
 251 }
 252
 253 extern HMODULE windowscodecs_module;
 254
 255 HRESULT read_png_chunk(IStream *stream, BYTE *type, BYTE **data, ULONG *data_size);
 256
 257 /* unixlib iface */
 258 struct decoder_funcs;
 259
 260 struct decoder_info
 261 {
 262     GUID container_format;
 263     GUID block_format;
 264     CLSID clsid;
 265 };
 266
 267 #define DECODER_FLAGS_CAPABILITY_MASK 0x1f
 268 #define DECODER_FLAGS_UNSUPPORTED_COLOR_CONTEXT 0x80000000
 269
 270 struct decoder_stat
 271 {
 272     DWORD flags;
 273     DWORD frame_count;
 274 };
 275
 276 struct decoder_frame
 277 {
 278     CLSID pixel_format;
 279     UINT width, height;
 280     UINT bpp;
 281     DOUBLE dpix, dpiy;
 282     DWORD num_color_contexts;
 283     DWORD num_colors;
 284     WICColor palette[256];
 285 };
 286
 287 #define DECODER_BLOCK_OPTION_MASK 0x0001000F
 288 #define DECODER_BLOCK_FULL_STREAM 0x80000000
 289 #define DECODER_BLOCK_READER_CLSID 0x40000000
 290 struct decoder_block
 291 {
 292     ULONGLONG offset;
 293     ULONGLONG length;
 294     DWORD options;
 295     GUID reader_clsid;
 296 };
 297
 298 struct decoder
 299 {
 300     const struct decoder_funcs *vtable;
 301 };
 302
 303 struct decoder_funcs
 304 {
 305     HRESULT (CDECL *initialize)(struct decoder* This, IStream *stream, struct decoder_stat *st);
 306     HRESULT (CDECL *get_frame_info)(struct decoder* This, UINT frame, struct decoder_frame *info);
 307     HRESULT (CDECL *copy_pixels)(struct decoder* This, UINT frame, const WICRect *prc,
 308         UINT stride, UINT buffersize, BYTE *buffer);
 309     HRESULT (CDECL *get_metadata_blocks)(struct decoder* This, UINT frame, UINT *count,
 310         struct decoder_block **blocks);
 311     HRESULT (CDECL *get_color_context)(struct decoder* This, UINT frame, UINT num,
 312         BYTE **data, DWORD *datasize);
 313     void (CDECL *destroy)(struct decoder* This);
 314 };
 315
 316 HRESULT CDECL stream_getsize(IStream *stream, ULONGLONG *size);
 317 HRESULT CDECL stream_read(IStream *stream, void *buffer, ULONG read, ULONG *bytes_read);
 318 HRESULT CDECL stream_seek(IStream *stream, LONGLONG ofs, DWORD origin, ULONGLONG *new_position);
 319 HRESULT CDECL stream_write(IStream *stream, const void *buffer, ULONG write, ULONG *bytes_written);
 320
 321 struct win32_funcs
 322 {
 323     HRESULT (CDECL *stream_getsize)(IStream *stream, ULONGLONG *size);
 324     HRESULT (CDECL *stream_read)(IStream *stream, void *buffer, ULONG read, ULONG *bytes_read);
 325     HRESULT (CDECL *stream_seek)(IStream *stream, LONGLONG ofs, DWORD origin, ULONGLONG *new_position);
 326     HRESULT (CDECL *stream_write)(IStream *stream, const void *buffer, ULONG write, ULONG *bytes_written);
 327 };
 328
 329 HRESULT CDECL decoder_create(const CLSID *decoder_clsid, struct decoder_info *info, struct decoder **result);
 330 HRESULT CDECL decoder_initialize(struct decoder *This, IStream *stream, struct decoder_stat *st);
 331 HRESULT CDECL decoder_get_frame_info(struct decoder* This, UINT frame, struct decoder_frame *info);
 332 HRESULT CDECL decoder_copy_pixels(struct decoder* This, UINT frame, const WICRect *prc,
 333     UINT stride, UINT buffersize, BYTE *buffer);
 334 HRESULT CDECL decoder_get_metadata_blocks(struct decoder* This, UINT frame, UINT *count,
 335     struct decoder_block **blocks);
 336 HRESULT CDECL decoder_get_color_context(struct decoder* This, UINT frame, UINT num,
 337     BYTE **data, DWORD *datasize);
 338 void CDECL decoder_destroy(struct decoder *This);
 339
 340 struct encoder_funcs;
 341
 342 /* sync with encoder_option_properties */
 343 enum encoder_option
 344 {
 345     ENCODER_OPTION_INTERLACE,
 346     ENCODER_OPTION_FILTER,
 347     ENCODER_OPTION_COMPRESSION_METHOD,
 348     ENCODER_OPTION_COMPRESSION_QUALITY,
 349     ENCODER_OPTION_IMAGE_QUALITY,
 350     ENCODER_OPTION_BITMAP_TRANSFORM,
 351     ENCODER_OPTION_LUMINANCE,
 352     ENCODER_OPTION_CHROMINANCE,
 353     ENCODER_OPTION_YCRCB_SUBSAMPLING,
 354     ENCODER_OPTION_SUPPRESS_APP0,
 355     ENCODER_OPTION_END
 356 };
 357
 358 #define ENCODER_FLAGS_MULTI_FRAME 0x1
 359 #define ENCODER_FLAGS_ICNS_SIZE 0x2
 360 #define ENCODER_FLAGS_SUPPORTS_METADATA 0x4
 361
 362 struct encoder_info
 363 {
 364     DWORD flags;
 365     GUID container_format;
 366     CLSID clsid;
 367     DWORD encoder_options[7];
 368 };
 369
 370 struct encoder_frame
 371 {
 372     GUID pixel_format;
 373     UINT width, height;
 374     UINT bpp;
 375     BOOL indexed;
 376     DOUBLE dpix, dpiy;
 377     DWORD num_colors;
 378     WICColor palette[256];
 379     /* encoder options */
 380     BOOL interlace;
 381     DWORD filter;
 382 };
 383
 384 struct encoder
 385 {
 386     const struct encoder_funcs *vtable;
 387 };
 388
 389 struct encoder_funcs
 390 {
 391     HRESULT (CDECL *initialize)(struct encoder* This, IStream *stream);
 392     HRESULT (CDECL *get_supported_format)(struct encoder* This, GUID *pixel_format, DWORD *bpp, BOOL *indexed);
 393     HRESULT (CDECL *create_frame)(struct encoder* This, const struct encoder_frame *frame);
 394     HRESULT (CDECL *write_lines)(struct encoder* This, BYTE *data, DWORD line_count, DWORD stride);
 395     HRESULT (CDECL *commit_frame)(struct encoder* This);
 396     HRESULT (CDECL *commit_file)(struct encoder* This);
 397     void (CDECL *destroy)(struct encoder* This);
 398 };
 399
 400 HRESULT CDECL encoder_initialize(struct encoder* This, IStream *stream);
 401 HRESULT CDECL encoder_get_supported_format(struct encoder* This, GUID *pixel_format, DWORD *bpp, BOOL *indexed);
 402 HRESULT CDECL encoder_create_frame(struct encoder* This, const struct encoder_frame *frame);
 403 HRESULT CDECL encoder_write_lines(struct encoder* This, BYTE *data, DWORD line_count, DWORD stride);
 404 HRESULT CDECL encoder_commit_frame(struct encoder* This);
 405 HRESULT CDECL encoder_commit_file(struct encoder* This);
 406 void CDECL encoder_destroy(struct encoder* This);
 407
 408 HRESULT CDECL png_decoder_create(struct decoder_info *info, struct decoder **result);
 409 HRESULT CDECL tiff_decoder_create(struct decoder_info *info, struct decoder **result);
 410 HRESULT CDECL jpeg_decoder_create(struct decoder_info *info, struct decoder **result);
 411
 412 HRESULT CDECL png_encoder_create(struct encoder_info *info, struct encoder **result);
 413 HRESULT CDECL tiff_encoder_create(struct encoder_info *info, struct encoder **result);
 414 HRESULT CDECL jpeg_encoder_create(struct encoder_info *info, struct encoder **result);
 415 HRESULT CDECL icns_encoder_create(struct encoder_info *info, struct encoder **result);
 416
 417 struct unix_funcs
 418 {
 419     HRESULT (CDECL *decoder_create)(const CLSID *decoder_clsid, struct decoder_info *info, struct decoder **result);
 420     HRESULT (CDECL *decoder_initialize)(struct decoder *This, IStream *stream, struct decoder_stat *st);
 421     HRESULT (CDECL *decoder_get_frame_info)(struct decoder* This, UINT frame, struct decoder_frame *info);
 422     HRESULT (CDECL *decoder_copy_pixels)(struct decoder* This, UINT frame, const WICRect *prc,
 423         UINT stride, UINT buffersize, BYTE *buffer);
 424     HRESULT (CDECL *decoder_get_metadata_blocks)(struct decoder* This, UINT frame, UINT *count,
 425         struct decoder_block **blocks);
 426     HRESULT (CDECL *decoder_get_color_context)(struct decoder* This, UINT frame, UINT num,
 427         BYTE **data, DWORD *datasize);
 428     void (CDECL *decoder_destroy)(struct decoder* This);
 429     HRESULT (CDECL *encoder_create)(const CLSID *encoder_clsid, struct encoder_info *info, struct encoder **result);
 430     HRESULT (CDECL *encoder_initialize)(struct encoder* This, IStream *stream);
 431     HRESULT (CDECL *encoder_get_supported_format)(struct encoder* This, GUID *pixel_format, DWORD *bpp, BOOL *indexed);
 432     HRESULT (CDECL *encoder_create_frame)(struct encoder* This, const struct encoder_frame *frame);
 433     HRESULT (CDECL *encoder_write_lines)(struct encoder* This, BYTE *data, DWORD line_count, DWORD stride);
 434     HRESULT (CDECL *encoder_commit_frame)(struct encoder* This);
 435     HRESULT (CDECL *encoder_commit_file)(struct encoder* This);
 436     void (CDECL *encoder_destroy)(struct encoder* This);
 437 };
 438
 439 HRESULT get_unix_decoder(const CLSID *decoder_clsid, struct decoder_info *info, struct decoder **result);
 440 HRESULT get_unix_encoder(const CLSID *encoder_clsid, struct encoder_info *info, struct encoder **result);
 441
 442 extern HRESULT CommonDecoder_CreateInstance(struct decoder *decoder,
 443     const struct decoder_info *decoder_info, REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 444
 445 extern HRESULT CommonEncoder_CreateInstance(struct encoder *encoder,
 446     const struct encoder_info *encoder_info, REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 447
 448 #endif /* WINCODECS_PRIVATE_H */