git.sesse.net Git - vlc/blob - modules/codec/avcodec/dxva2.c

   1 /*****************************************************************************
   2  * va.c: Video Acceleration helpers
   3  *****************************************************************************
   4  * Copyright (C) 2009 Geoffroy Couprie
   5  * Copyright (C) 2009 Laurent Aimar
   6  * $Id$
   7  *
   8  * Authors: Geoffroy Couprie <geal@videolan.org>
   9  *          Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  24  *****************************************************************************/
  25
  26 #ifdef HAVE_CONFIG_H
  27 # include "config.h"
  28 #endif
  29
  30 #include <vlc_common.h>
  31 #include <vlc_picture.h>
  32 #include <vlc_fourcc.h>
  33 #include <vlc_cpu.h>
  34 #include <assert.h>
  35
  36 #ifdef HAVE_LIBAVCODEC_AVCODEC_H
  37 #   include <libavcodec/avcodec.h>
  38 #   ifdef HAVE_AVCODEC_DXVA2
  39 #       define DXVA2API_USE_BITFIELDS
  40 #       include <libavcodec/dxva2.h>
  41 #   endif
  42 #elif defined(HAVE_FFMPEG_AVCODEC_H)
  43 #   include <ffmpeg/avcodec.h>
  44 #else
  45 #   include <avcodec.h>
  46 #endif
  47
  48 #include "avcodec.h"
  49 #include "va.h"
  50 #include "copy.h"
  51
  52 #ifdef HAVE_AVCODEC_DXVA2
  53
  54 #include <windows.h>
  55 #include <windowsx.h>
  56 #include <ole2.h>
  57 #include <commctrl.h>
  58 #include <shlwapi.h>
  59 #include <d3d9.h>
  60
  61 /* */
  62 #define DXVA2_E_NOT_INITIALIZED     MAKE_HRESULT(1, 4, 4096)
  63 #define DXVA2_E_NEW_VIDEO_DEVICE    MAKE_HRESULT(1, 4, 4097)
  64 #define DXVA2_E_VIDEO_DEVICE_LOCKED MAKE_HRESULT(1, 4, 4098)
  65 #define DXVA2_E_NOT_AVAILABLE       MAKE_HRESULT(1, 4, 4099)
  66
  67 static const GUID DXVA2_ModeMPEG2_MoComp = {
  68     0xe6a9f44b, 0x61b0, 0x4563, {0x9e,0xa4,0x63,0xd2,0xa3,0xc6,0xfe,0x66}
  69 };
  70 static const GUID DXVA2_ModeMPEG2_IDCT = {
  71   0xbf22ad00, 0x03ea, 0x4690, {0x80,0x77,0x47,0x33,0x46,0x20,0x9b,0x7e}
  72 };
  73 static const GUID DXVA2_ModeMPEG2_VLD = {
  74    0xee27417f, 0x5e28, 0x4e65, {0xbe,0xea,0x1d,0x26,0xb5,0x08,0xad,0xc9}
  75 };
  76
  77 static const GUID DXVA2_ModeH264_A = {
  78     0x1b81be64, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
  79 };
  80 static const GUID DXVA2_ModeH264_B = {
  81     0x1b81be65, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
  82 };
  83 static const GUID DXVA2_ModeH264_C = {
  84     0x1b81be66, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
  85 };
  86 static const GUID DXVA2_ModeH264_D = {
  87     0x1b81be67, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
  88 };
  89 static const GUID DXVA2_ModeH264_E = {
  90     0x1b81be68, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
  91 };
  92 static const GUID DXVA2_ModeH264_F = {
  93     0x1b81be69, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
  94 };
  95 static const GUID DXVADDI_Intel_ModeH264_A = {
  96     0x604F8E64, 0x4951,0x4c54, {0x88,0xFE,0xAB,0xD2,0x5C,0x15,0xB3,0xD6}
  97 };
  98 static const GUID DXVADDI_Intel_ModeH264_C = {
  99     0x604F8E66,0x4951, 0x4c54, {0x88,0xFE,0xAB,0xD2,0x5C,0x15,0xB3,0xD6}
 100 };
 101 static const GUID DXVADDI_Intel_ModeH264_E = {
 102     0x604F8E68,0x4951, 0x4c54, {0x88,0xFE,0xAB,0xD2,0x5C,0x15,0xB3,0xD6}
 103 };
 104 static const GUID DXVA2_ModeWMV8_A = {
 105     0x1b81be80, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
 106 };
 107 static const GUID DXVA2_ModeWMV8_B = {
 108     0x1b81be81, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
 109 };
 110 static const GUID DXVA2_ModeWMV9_A = {
 111     0x1b81be90, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
 112 };
 113 static const GUID DXVA2_ModeWMV9_B = {
 114     0x1b81be91, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
 115 };
 116 static const GUID DXVA2_ModeWMV9_C = {
 117     0x1b81be94, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
 118 };
 119
 120 static const GUID DXVA2_ModeVC1_A = {
 121     0x1b81beA0, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
 122 };
 123 static const GUID DXVA2_ModeVC1_B = {
 124     0x1b81beA1, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
 125 };
 126 static const GUID DXVA2_ModeVC1_C = {
 127     0x1b81beA2, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
 128 };
 129 static const GUID DXVA2_ModeVC1_D = {
 130     0x1b81beA3, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
 131 };
 132
 133 /* */
 134 typedef struct {
 135     const char   *name;
 136     const GUID   *guid;
 137     int          codec;
 138 } dxva2_mode_t;
 139 /* XXX Prefered modes must come first */
 140 static const dxva2_mode_t dxva2_modes[] = {
 141     { "DXVA2_ModeMPEG2_VLD",    &DXVA2_ModeMPEG2_VLD,     CODEC_ID_MPEG2VIDEO },
 142     { "DXVA2_ModeMPEG2_MoComp", &DXVA2_ModeMPEG2_MoComp,  0 },
 143     { "DXVA2_ModeMPEG2_IDCT",   &DXVA2_ModeMPEG2_IDCT,    0 },
 144
 145     { "H.264 variable-length decoder (VLD), FGT",               &DXVA2_ModeH264_F,         CODEC_ID_H264 },
 146     { "H.264 VLD, no FGT",                                      &DXVA2_ModeH264_E,         CODEC_ID_H264 },
 147     { "H.264 VLD, no FGT (Intel)",                              &DXVADDI_Intel_ModeH264_E, CODEC_ID_H264 },
 148     { "H.264 IDCT, FGT",                                        &DXVA2_ModeH264_D,         0             },
 149     { "H.264 inverse discrete cosine transform (IDCT), no FGT", &DXVA2_ModeH264_C,         0             },
 150     { "H.264 inverse discrete cosine transform (IDCT), no FGT (Intel)", &DXVADDI_Intel_ModeH264_C, 0     },
 151     { "H.264 MoComp, FGT",                                      &DXVA2_ModeH264_B,         0             },
 152     { "H.264 motion compensation (MoComp), no FGT",             &DXVA2_ModeH264_A,         0             },
 153     { "H.264 motion compensation (MoComp), no FGT (Intel)",     &DXVADDI_Intel_ModeH264_A, 0             },
 154
 155     { "Windows Media Video 8 MoComp",           &DXVA2_ModeWMV8_B, 0 },
 156     { "Windows Media Video 8 post processing",  &DXVA2_ModeWMV8_A, 0 },
 157
 158     {  "Windows Media Video 9 IDCT",            &DXVA2_ModeWMV9_C, 0 },
 159     {  "Windows Media Video 9 MoComp",          &DXVA2_ModeWMV9_B, 0 },
 160     {  "Windows Media Video 9 post processing", &DXVA2_ModeWMV9_A, 0 },
 161
 162     { "VC-1 VLD",             &DXVA2_ModeVC1_D, CODEC_ID_VC1 },
 163     { "VC-1 VLD",             &DXVA2_ModeVC1_D, CODEC_ID_WMV3 },
 164     { "VC-1 IDCT",            &DXVA2_ModeVC1_C, 0 },
 165     { "VC-1 MoComp",          &DXVA2_ModeVC1_B, 0 },
 166     { "VC-1 post processing", &DXVA2_ModeVC1_A, 0 },
 167
 168     { NULL, NULL, 0 }
 169 };
 170
 171 static const dxva2_mode_t *Dxva2FindMode(const GUID *guid)
 172 {
 173     for (unsigned i = 0; dxva2_modes[i].name; i++) {
 174         if (IsEqualGUID(dxva2_modes[i].guid, guid))
 175             return &dxva2_modes[i];
 176     }
 177     return NULL;
 178 }
 179
 180 /* */
 181 typedef struct {
 182     const char   *name;
 183     D3DFORMAT    format;
 184     vlc_fourcc_t codec;
 185 } d3d_format_t;
 186 /* XXX Prefered format must come first */
 187 static const d3d_format_t d3d_formats[] = {
 188     { "YV12",   MAKEFOURCC('Y','V','1','2'),    VLC_CODEC_YV12 },
 189     { "NV12",   MAKEFOURCC('N','V','1','2'),    VLC_CODEC_NV12 },
 190
 191     { NULL, 0, 0 }
 192 };
 193
 194 static const d3d_format_t *D3dFindFormat(D3DFORMAT format)
 195 {
 196     for (unsigned i = 0; d3d_formats[i].name; i++) {
 197         if (d3d_formats[i].format == format)
 198             return &d3d_formats[i];
 199     }
 200     return NULL;
 201 }
 202
 203 static const GUID IID_IDirectXVideoDecoderService = {
 204     0xfc51a551, 0xd5e7, 0x11d9, {0xaf,0x55,0x00,0x05,0x4e,0x43,0xff,0x02}
 205 };
 206 static const GUID IID_IDirectXVideoAccelerationService = {
 207     0xfc51a550, 0xd5e7, 0x11d9, {0xaf,0x55,0x00,0x05,0x4e,0x43,0xff,0x02}
 208 };
 209
 210 /* */
 211 typedef struct {
 212     LPDIRECT3DSURFACE9 d3d;
 213     int                refcount;
 214     unsigned int       order;
 215 } vlc_va_surface_t;
 216
 217 #define VA_DXVA2_MAX_SURFACE_COUNT (64)
 218 typedef struct
 219 {
 220     /* */
 221     vlc_va_t va;
 222
 223     /* */
 224     vlc_object_t *log;
 225     int          codec_id;
 226
 227     /* DLL */
 228         HINSTANCE             hd3d9_dll;
 229     HINSTANCE             hdxva2_dll;
 230
 231     /* Direct3D */
 232     D3DPRESENT_PARAMETERS  d3dpp;
 233     LPDIRECT3D9            d3dobj;
 234     D3DADAPTER_IDENTIFIER9 d3dai;
 235     LPDIRECT3DDEVICE9      d3ddev;
 236
 237     /* Device manager */
 238     UINT                     token;
 239     IDirect3DDeviceManager9  *devmng;
 240     HANDLE                   device;
 241
 242     /* Video service */
 243     IDirectXVideoDecoderService  *vs;
 244     GUID                         input;
 245     D3DFORMAT                    render;
 246
 247     /* Video decoder */
 248     DXVA2_ConfigPictureDecode    cfg;
 249     IDirectXVideoDecoder         *decoder;
 250
 251     /* Option conversion */
 252     D3DFORMAT                    output;
 253     copy_cache_t                 surface_cache;
 254
 255     /* */
 256     struct dxva_context hw;
 257
 258     /* */
 259     unsigned     surface_count;
 260     unsigned     surface_order;
 261     int          surface_width;
 262     int          surface_height;
 263     vlc_fourcc_t surface_chroma;
 264
 265     vlc_va_surface_t surface[VA_DXVA2_MAX_SURFACE_COUNT];
 266     LPDIRECT3DSURFACE9 hw_surface[VA_DXVA2_MAX_SURFACE_COUNT];
 267 } vlc_va_dxva2_t;
 268
 269 /* */
 270 static vlc_va_dxva2_t *vlc_va_dxva2_Get(void *external)
 271 {
 272     assert(external == (void*)(&((vlc_va_dxva2_t*)external)->va));
 273     return external;
 274 }
 275
 276 /* */
 277 static int D3dCreateDevice(vlc_va_dxva2_t *);
 278 static void D3dDestroyDevice(vlc_va_dxva2_t *);
 279 static char *DxDescribe(vlc_va_dxva2_t *);
 280
 281 static int D3dCreateDeviceManager(vlc_va_dxva2_t *);
 282 static void D3dDestroyDeviceManager(vlc_va_dxva2_t *);
 283
 284 static int DxCreateVideoService(vlc_va_dxva2_t *);
 285 static void DxDestroyVideoService(vlc_va_dxva2_t *);
 286 static int DxFindVideoServiceConversion(vlc_va_dxva2_t *, GUID *input, D3DFORMAT *output);
 287
 288 static int DxCreateVideoDecoder(vlc_va_dxva2_t *,
 289                                 int codec_id, const video_format_t *);
 290 static void DxDestroyVideoDecoder(vlc_va_dxva2_t *);
 291 static int DxResetVideoDecoder(vlc_va_dxva2_t *);
 292
 293 static void DxCreateVideoConversion(vlc_va_dxva2_t *);
 294 static void DxDestroyVideoConversion(vlc_va_dxva2_t *);
 295
 296 /* */
 297 static int Setup(vlc_va_t *external, void **hw, vlc_fourcc_t *chroma,
 298                  int width, int height)
 299 {
 300     vlc_va_dxva2_t *va = vlc_va_dxva2_Get(external);
 301
 302     if (va->surface_width  == width &&
 303         va->surface_height == height)
 304         goto ok;
 305
 306     /* */
 307     DxDestroyVideoConversion(va);
 308     DxDestroyVideoDecoder(va);
 309
 310     *hw = NULL;
 311     *chroma = 0;
 312     if (width <= 0 || height <= 0)
 313         return VLC_EGENERIC;
 314
 315     /* FIXME transmit a video_format_t by VaSetup directly */
 316     video_format_t fmt;
 317     memset(&fmt, 0, sizeof(fmt));
 318     fmt.i_width = width;
 319     fmt.i_height = height;
 320
 321     if (DxCreateVideoDecoder(va, va->codec_id, &fmt))
 322         return VLC_EGENERIC;
 323     /* */
 324     va->hw.decoder = va->decoder;
 325     va->hw.cfg = &va->cfg;
 326     va->hw.surface_count = va->surface_count;
 327     va->hw.surface = va->hw_surface;
 328     for (unsigned i = 0; i < va->surface_count; i++)
 329         va->hw.surface[i] = va->surface[i].d3d;
 330
 331     /* */
 332     DxCreateVideoConversion(va);
 333
 334     /* */
 335 ok:
 336     *hw = &va->hw;
 337     const d3d_format_t *output = D3dFindFormat(va->output);
 338     *chroma = output->codec;
 339
 340     return VLC_SUCCESS;
 341 }
 342
 343 static int Extract(vlc_va_t *external, picture_t *picture, AVFrame *ff)
 344 {
 345     vlc_va_dxva2_t *va = vlc_va_dxva2_Get(external);
 346     LPDIRECT3DSURFACE9 d3d = (LPDIRECT3DSURFACE9)(uintptr_t)ff->data[3];
 347
 348     if (!va->surface_cache.buffer)
 349         return VLC_EGENERIC;
 350
 351     /* */
 352     assert(va->output == MAKEFOURCC('Y','V','1','2'));
 353
 354     /* */
 355     D3DLOCKED_RECT lock;
 356     if (FAILED(IDirect3DSurface9_LockRect(d3d, &lock, NULL, D3DLOCK_READONLY))) {
 357         msg_Err(va->log, "Failed to lock surface");
 358         return VLC_EGENERIC;
 359     }
 360
 361     if (va->render == MAKEFOURCC('Y','V','1','2')) {
 362         uint8_t *plane[3] = {
 363             lock.pBits,
 364             (uint8_t*)lock.pBits + lock.Pitch * va->surface_height,
 365             (uint8_t*)lock.pBits + lock.Pitch * va->surface_height
 366                                  + (lock.Pitch/2) * (va->surface_height/2)
 367         };
 368         size_t  pitch[3] = {
 369             lock.Pitch,
 370             lock.Pitch / 2,
 371             lock.Pitch / 2,
 372         };
 373         CopyFromYv12(picture, plane, pitch,
 374                      va->surface_width, va->surface_height,
 375                      &va->surface_cache);
 376     } else {
 377         assert(va->render == MAKEFOURCC('N','V','1','2'));
 378         uint8_t *plane[2] = {
 379             lock.pBits,
 380             (uint8_t*)lock.pBits + lock.Pitch * va->surface_height
 381         };
 382         size_t  pitch[2] = {
 383             lock.Pitch,
 384             lock.Pitch,
 385         };
 386         CopyFromNv12(picture, plane, pitch,
 387                      va->surface_width, va->surface_height,
 388                      &va->surface_cache);
 389     }
 390
 391     /* */
 392     IDirect3DSurface9_UnlockRect(d3d);
 393     return VLC_SUCCESS;
 394 }
 395 /* FIXME it is nearly common with VAAPI */
 396 static int Get(vlc_va_t *external, AVFrame *ff)
 397 {
 398     vlc_va_dxva2_t *va = vlc_va_dxva2_Get(external);
 399
 400     /* Check the device */
 401     HRESULT hr = IDirect3DDeviceManager9_TestDevice(va->devmng, va->device);
 402     if (hr == DXVA2_E_NEW_VIDEO_DEVICE) {
 403         if (DxResetVideoDecoder(va))
 404             return VLC_EGENERIC;
 405     } else if (FAILED(hr)) {
 406         msg_Err(va->log, "IDirect3DDeviceManager9_TestDevice %u", (unsigned)hr);
 407         return VLC_EGENERIC;
 408     }
 409
 410     /* Grab an unused surface, in case none are, try the oldest
 411      * XXX using the oldest is a workaround in case a problem happens with ffmpeg */
 412     unsigned i, old;
 413     for (i = 0, old = 0; i < va->surface_count; i++) {
 414         vlc_va_surface_t *surface = &va->surface[i];
 415
 416         if (!surface->refcount)
 417             break;
 418
 419         if (surface->order < va->surface[old].order)
 420             old = i;
 421     }
 422     if (i >= va->surface_count)
 423         i = old;
 424
 425     vlc_va_surface_t *surface = &va->surface[i];
 426
 427     surface->refcount = 1;
 428     surface->order = va->surface_order++;
 429
 430     /* */
 431     for (int i = 0; i < 4; i++) {
 432         ff->data[i] = NULL;
 433         ff->linesize[i] = 0;
 434
 435         if (i == 0 || i == 3)
 436             ff->data[i] = (void*)surface->d3d;/* Yummie */
 437     }
 438     return VLC_SUCCESS;
 439 }
 440 static void Release(vlc_va_t *external, AVFrame *ff)
 441 {
 442     vlc_va_dxva2_t *va = vlc_va_dxva2_Get(external);
 443     LPDIRECT3DSURFACE9 d3d = (LPDIRECT3DSURFACE9)(uintptr_t)ff->data[3];
 444
 445     for (unsigned i = 0; i < va->surface_count; i++) {
 446         vlc_va_surface_t *surface = &va->surface[i];
 447
 448         if (surface->d3d == d3d)
 449             surface->refcount--;
 450     }
 451 }
 452 static void Close(vlc_va_t *external)
 453 {
 454     vlc_va_dxva2_t *va = vlc_va_dxva2_Get(external);
 455
 456     DxDestroyVideoConversion(va);
 457     DxDestroyVideoDecoder(va);
 458     DxDestroyVideoService(va);
 459     D3dDestroyDeviceManager(va);
 460     D3dDestroyDevice(va);
 461
 462     if (va->hdxva2_dll)
 463         FreeLibrary(va->hdxva2_dll);
 464     if (va->hd3d9_dll)
 465         FreeLibrary(va->hd3d9_dll);
 466
 467     free(va->va.description);
 468     free(va);
 469 }
 470
 471 vlc_va_t *vlc_va_NewDxva2(vlc_object_t *log, int codec_id)
 472 {
 473     vlc_va_dxva2_t *va = calloc(1, sizeof(*va));
 474     if (!va)
 475         return NULL;
 476
 477     /* */
 478     va->log = log;
 479     va->codec_id = codec_id;
 480
 481     /* Load dll*/
 482     va->hd3d9_dll = LoadLibrary(TEXT("D3D9.DLL"));
 483     if (!va->hd3d9_dll) {
 484         msg_Warn(va->log, "cannot load d3d9.dll");
 485         goto error;
 486     }
 487     va->hdxva2_dll = LoadLibrary(TEXT("DXVA2.DLL"));
 488     if (!va->hdxva2_dll) {
 489         msg_Warn(va->log, "cannot load dxva2.dll");
 490         goto error;
 491     }
 492     msg_Dbg(va->log, "DLLs loaded");
 493
 494     /* */
 495     if (D3dCreateDevice(va)) {
 496         msg_Err(va->log, "Failed to create Direct3D device");
 497         goto error;
 498     }
 499     msg_Dbg(va->log, "D3dCreateDevice succeed");
 500
 501     if (D3dCreateDeviceManager(va)) {
 502         msg_Err(va->log, "D3dCreateDeviceManager failed");
 503         goto error;
 504     }
 505
 506     if (DxCreateVideoService(va)) {
 507         msg_Err(va->log, "DxCreateVideoService failed");
 508         goto error;
 509     }
 510
 511     /* */
 512     if (DxFindVideoServiceConversion(va, &va->input, &va->render)) {
 513         msg_Err(va->log, "DxFindVideoServiceConversion failed");
 514         goto error;
 515     }
 516
 517     /* TODO print the hardware name/vendor for debugging purposes */
 518     va->va.description = DxDescribe(va);
 519     va->va.setup   = Setup;
 520     va->va.get     = Get;
 521     va->va.release = Release;
 522     va->va.extract = Extract;
 523     va->va.close   = Close;
 524     return &va->va;
 525
 526 error:
 527     Close(&va->va);
 528     return NULL;
 529 }
 530 /* */
 531
 532 /**
 533  * It creates a Direct3D device usable for DXVA 2
 534  */
 535 static int D3dCreateDevice(vlc_va_dxva2_t *va)
 536 {
 537     /* */
 538     LPDIRECT3D9 (WINAPI *Create9)(UINT SDKVersion);
 539     Create9 = (void *)GetProcAddress(va->hd3d9_dll,
 540                                      TEXT("Direct3DCreate9"));
 541     if (!Create9) {
 542         msg_Err(va->log, "Cannot locate reference to Direct3DCreate9 ABI in DLL");
 543         return VLC_EGENERIC;
 544     }
 545
 546     /* */
 547     LPDIRECT3D9 d3dobj;
 548     d3dobj = Create9(D3D_SDK_VERSION);
 549     if (!d3dobj) {
 550         msg_Err(va->log, "Direct3DCreate9 failed");
 551         return VLC_EGENERIC;
 552     }
 553     va->d3dobj = d3dobj;
 554
 555     /* */
 556     D3DADAPTER_IDENTIFIER9 *d3dai = &va->d3dai;
 557     if (FAILED(IDirect3D9_GetAdapterIdentifier(va->d3dobj,
 558                                                D3DADAPTER_DEFAULT, 0, d3dai))) {
 559         msg_Warn(va->log, "IDirect3D9_GetAdapterIdentifier failed");
 560         ZeroMemory(d3dai, sizeof(*d3dai));
 561     }
 562
 563     /* */
 564     D3DPRESENT_PARAMETERS *d3dpp = &va->d3dpp;
 565     ZeroMemory(d3dpp, sizeof(*d3dpp));
 566     d3dpp->Flags                  = D3DPRESENTFLAG_VIDEO;
 567     d3dpp->Windowed               = TRUE;
 568     d3dpp->hDeviceWindow          = NULL;
 569     d3dpp->SwapEffect             = D3DSWAPEFFECT_DISCARD;
 570     d3dpp->MultiSampleType        = D3DMULTISAMPLE_NONE;
 571     d3dpp->PresentationInterval   = D3DPRESENT_INTERVAL_DEFAULT;
 572     d3dpp->BackBufferCount        = 0;                  /* FIXME what to put here */
 573     d3dpp->BackBufferFormat       = D3DFMT_X8R8G8B8;    /* FIXME what to put here */
 574     d3dpp->BackBufferWidth        = 0;
 575     d3dpp->BackBufferHeight       = 0;
 576     d3dpp->EnableAutoDepthStencil = FALSE;
 577
 578     /* Direct3D needs a HWND to create a device, even without using ::Present
 579     this HWND is used to alert Direct3D when there's a change of focus window.
 580     For now, use GetShellWindow, as it looks harmless */
 581     LPDIRECT3DDEVICE9 d3ddev;
 582     if (FAILED(IDirect3D9_CreateDevice(d3dobj, D3DADAPTER_DEFAULT,
 583                                        D3DDEVTYPE_HAL, GetShellWindow(),
 584                                        D3DCREATE_SOFTWARE_VERTEXPROCESSING |
 585                                        D3DCREATE_MULTITHREADED,
 586                                        d3dpp, &d3ddev))) {
 587         msg_Err(va->log, "IDirect3D9_CreateDevice failed");
 588         return VLC_EGENERIC;
 589     }
 590     va->d3ddev = d3ddev;
 591
 592     return VLC_SUCCESS;
 593 }
 594 /**
 595  * It releases a Direct3D device and its resources.
 596  */
 597 static void D3dDestroyDevice(vlc_va_dxva2_t *va)
 598 {
 599     if (va->d3ddev)
 600         IDirect3DDevice9_Release(va->d3ddev);
 601     if (va->d3dobj)
 602         IDirect3D9_Release(va->d3dobj);
 603 }
 604 /**
 605  * It describes our Direct3D object
 606  */
 607 static char *DxDescribe(vlc_va_dxva2_t *va)
 608 {
 609     static const struct {
 610         unsigned id;
 611         char     name[32];
 612     } vendors [] = {
 613         { 0x1002, "ATI" },
 614         { 0x10DE, "NVIDIA" },
 615         { 0x8086, "Intel" },
 616         { 0x5333, "S3 Graphics" },
 617         { 0, "" }
 618     };
 619     D3DADAPTER_IDENTIFIER9 *id = &va->d3dai;
 620
 621     const char *vendor = "Unknown";
 622     for (int i = 0; vendors[i].id != 0; i++) {
 623         if (vendors[i].id == id->VendorId) {
 624             vendor = vendors[i].name;
 625             break;
 626         }
 627     }
 628
 629     char *description;
 630     if (asprintf(&description, "DXVA2 (%.*s, vendor %d(%s), device %d, revision %d)",
 631                  sizeof(id->Description), id->Description,
 632                  id->VendorId, vendor, id->DeviceId, id->Revision) < 0)
 633         return NULL;
 634     return description;
 635 }
 636
 637 /**
 638  * It creates a Direct3D device manager
 639  */
 640 static int D3dCreateDeviceManager(vlc_va_dxva2_t *va)
 641 {
 642     HRESULT (WINAPI *CreateDeviceManager9)(UINT *pResetToken,
 643                                            IDirect3DDeviceManager9 **);
 644     CreateDeviceManager9 =
 645       (void *)GetProcAddress(va->hdxva2_dll,
 646                              TEXT("DXVA2CreateDirect3DDeviceManager9"));
 647
 648     if (!CreateDeviceManager9) {
 649         msg_Err(va->log, "cannot load function\n");
 650         return VLC_EGENERIC;
 651     }
 652     msg_Dbg(va->log, "OurDirect3DCreateDeviceManager9 Success!");
 653
 654     UINT token;
 655     IDirect3DDeviceManager9 *devmng;
 656     if (FAILED(CreateDeviceManager9(&token, &devmng))) {
 657         msg_Err(va->log, " OurDirect3DCreateDeviceManager9 failed");
 658         return VLC_EGENERIC;
 659     }
 660     va->token  = token;
 661     va->devmng = devmng;
 662     msg_Info(va->log, "obtained IDirect3DDeviceManager9");
 663
 664     HRESULT hr = IDirect3DDeviceManager9_ResetDevice(devmng, va->d3ddev, token);
 665     if (FAILED(hr)) {
 666         msg_Err(va->log, "IDirect3DDeviceManager9_ResetDevice failed: %08x", (unsigned)hr);
 667         return VLC_EGENERIC;
 668     }
 669     return VLC_SUCCESS;
 670 }
 671 /**
 672  * It destroys a Direct3D device manager
 673  */
 674 static void D3dDestroyDeviceManager(vlc_va_dxva2_t *va)
 675 {
 676     if (va->devmng)
 677         IDirect3DDeviceManager9_Release(va->devmng);
 678 }
 679
 680 /**
 681  * It creates a DirectX video service
 682  */
 683 static int DxCreateVideoService(vlc_va_dxva2_t *va)
 684 {
 685     HRESULT (WINAPI *CreateVideoService)(IDirect3DDevice9 *,
 686                                          REFIID riid,
 687                                          void **ppService);
 688     CreateVideoService =
 689       (void *)GetProcAddress(va->hdxva2_dll,
 690                              TEXT("DXVA2CreateVideoService"));
 691
 692     if (!CreateVideoService) {
 693         msg_Err(va->log, "cannot load function\n");
 694         return 4;
 695     }
 696     msg_Info(va->log, "DXVA2CreateVideoService Success!");
 697
 698     HRESULT hr;
 699
 700     HANDLE device;
 701     hr = IDirect3DDeviceManager9_OpenDeviceHandle(va->devmng, &device);
 702     if (FAILED(hr)) {
 703         msg_Err(va->log, "OpenDeviceHandle failed");
 704         return VLC_EGENERIC;
 705     }
 706     va->device = device;
 707
 708     IDirectXVideoDecoderService *vs;
 709     hr = IDirect3DDeviceManager9_GetVideoService(va->devmng, device,
 710                                                  &IID_IDirectXVideoDecoderService,
 711                                                  &vs);
 712     if (FAILED(hr)) {
 713         msg_Err(va->log, "GetVideoService failed");
 714         return VLC_EGENERIC;
 715     }
 716     va->vs = vs;
 717
 718     return VLC_SUCCESS;
 719 }
 720 /**
 721  * It destroys a DirectX video service
 722  */
 723 static void DxDestroyVideoService(vlc_va_dxva2_t *va)
 724 {
 725     if (va->device)
 726         IDirect3DDeviceManager9_CloseDeviceHandle(va->devmng, va->device);
 727     if (va->vs)
 728         IDirectXVideoDecoderService_Release(va->vs);
 729 }
 730 /**
 731  * Find the best suited decoder mode GUID and render format.
 732  */
 733 static int DxFindVideoServiceConversion(vlc_va_dxva2_t *va, GUID *input, D3DFORMAT *output)
 734 {
 735     /* Retreive supported modes from the decoder service */
 736     UINT input_count = 0;
 737     GUID *input_list = NULL;
 738     if (FAILED(IDirectXVideoDecoderService_GetDecoderDeviceGuids(va->vs,
 739                                                                  &input_count,
 740                                                                  &input_list))) {
 741         msg_Err(va->log, "IDirectXVideoDecoderService_GetDecoderDeviceGuids failed");
 742         return VLC_EGENERIC;
 743     }
 744     for (unsigned i = 0; i < input_count; i++) {
 745         const GUID *g = &input_list[i];
 746         const dxva2_mode_t *mode = Dxva2FindMode(g);
 747         if (mode) {
 748             msg_Dbg(va->log, "- '%s' is supported by hardware", mode->name);
 749         } else {
 750             msg_Warn(va->log, "- Unknown GUID = %08X-%04x-%04x-XXXX",
 751                      (unsigned)g->Data1, g->Data2, g->Data3);
 752         }
 753     }
 754
 755     /* Try all supported mode by our priority */
 756     for (unsigned i = 0; dxva2_modes[i].name; i++) {
 757         const dxva2_mode_t *mode = &dxva2_modes[i];
 758         if (!mode->codec || mode->codec != va->codec_id)
 759             continue;
 760
 761         /* */
 762         bool is_suported = false;
 763         for (const GUID *g = &input_list[0]; !is_suported && g < &input_list[input_count]; g++) {
 764             is_suported = IsEqualGUID(mode->guid, g);
 765         }
 766         if (!is_suported)
 767             continue;
 768
 769         /* */
 770         msg_Dbg(va->log, "Trying to use '%s' as input", mode->name);
 771         UINT      output_count = 0;
 772         D3DFORMAT *output_list = NULL;
 773         if (FAILED(IDirectXVideoDecoderService_GetDecoderRenderTargets(va->vs, mode->guid,
 774                                                                        &output_count,
 775                                                                        &output_list))) {
 776             msg_Err(va->log, "IDirectXVideoDecoderService_GetDecoderRenderTargets failed");
 777             continue;
 778         }
 779         for (unsigned j = 0; j < output_count; j++) {
 780             const D3DFORMAT f = output_list[j];
 781             const d3d_format_t *format = D3dFindFormat(f);
 782             if (format) {
 783                 msg_Dbg(va->log, "%s is supported for output", format->name);
 784             } else {
 785                 msg_Dbg(va->log, "%d is supported for output (%4.4s)", f, (const char*)&f);
 786             }
 787         }
 788
 789         /* */
 790         for (unsigned j = 0; d3d_formats[j].name; j++) {
 791             const d3d_format_t *format = &d3d_formats[j];
 792
 793             /* */
 794             bool is_suported = false;
 795             for (unsigned k = 0; !is_suported && k < output_count; k++) {
 796                 is_suported = format->format == output_list[k];
 797             }
 798             if (!is_suported)
 799                 continue;
 800
 801             /* We have our solution */
 802             msg_Dbg(va->log, "Using '%s' to decode to '%s'", mode->name, format->name);
 803             *input  = *mode->guid;
 804             *output = format->format;
 805             CoTaskMemFree(output_list);
 806             CoTaskMemFree(input_list);
 807             return VLC_SUCCESS;
 808         }
 809         CoTaskMemFree(output_list);
 810     }
 811     CoTaskMemFree(input_list);
 812     return VLC_EGENERIC;
 813 }
 814
 815 /**
 816  * It creates a DXVA2 decoder using the given video format
 817  */
 818 static int DxCreateVideoDecoder(vlc_va_dxva2_t *va,
 819                                 int codec_id, const video_format_t *fmt)
 820 {
 821     /* */
 822     msg_Dbg(va->log, "DxCreateVideoDecoder id %d %dx%d",
 823             codec_id, fmt->i_width, fmt->i_height);
 824
 825     /* Allocates all surfaces needed for the decoder */
 826     switch (codec_id) {
 827     case CODEC_ID_H264:
 828         va->surface_count = 16 + 1;
 829         break;
 830     default:
 831         va->surface_count = 2 + 1;
 832         break;
 833     }
 834     LPDIRECT3DSURFACE9 surface_list[VA_DXVA2_MAX_SURFACE_COUNT];
 835     if (FAILED(IDirectXVideoDecoderService_CreateSurface(va->vs,
 836                                                          fmt->i_width,
 837                                                          fmt->i_height,
 838                                                          va->surface_count - 1,
 839                                                          va->render,
 840                                                          D3DPOOL_DEFAULT,
 841                                                          0,
 842                                                          DXVA2_VideoDecoderRenderTarget,
 843                                                          surface_list,
 844                                                          NULL))) {
 845         msg_Err(va->log, "IDirectXVideoAccelerationService_CreateSurface failed\n");
 846         va->surface_count = 0;
 847         return VLC_EGENERIC;
 848     }
 849     for (unsigned i = 0; i < va->surface_count; i++) {
 850         vlc_va_surface_t *surface = &va->surface[i];
 851         surface->d3d = surface_list[i];
 852         surface->refcount = 0;
 853         surface->order = 0;
 854     }
 855     va->surface_width  = fmt->i_width;
 856     va->surface_height = fmt->i_height;
 857     msg_Dbg(va->log, "IDirectXVideoAccelerationService_CreateSurface succeed with %d surfaces (%dx%d)",
 858             va->surface_count, fmt->i_width, fmt->i_height);
 859
 860     /* */
 861     DXVA2_VideoDesc dsc;
 862     ZeroMemory(&dsc, sizeof(dsc));
 863     dsc.SampleWidth     = fmt->i_width;
 864     dsc.SampleHeight    = fmt->i_height;
 865     dsc.Format          = va->render;
 866     if (fmt->i_frame_rate > 0 && fmt->i_frame_rate_base > 0) {
 867         dsc.InputSampleFreq.Numerator   = fmt->i_frame_rate;
 868         dsc.InputSampleFreq.Denominator = fmt->i_frame_rate_base;
 869     } else {
 870         dsc.InputSampleFreq.Numerator   = 0;
 871         dsc.InputSampleFreq.Denominator = 0;
 872     }
 873     dsc.OutputFrameFreq = dsc.InputSampleFreq;
 874     dsc.UABProtectionLevel = FALSE;
 875     dsc.Reserved = 0;
 876
 877     /* FIXME I am unsure we can let unknown everywhere */
 878     DXVA2_ExtendedFormat *ext = &dsc.SampleFormat;
 879     ext->SampleFormat = 0;//DXVA2_SampleUnknown;
 880     ext->VideoChromaSubsampling = 0;//DXVA2_VideoChromaSubsampling_Unknown;
 881     ext->NominalRange = 0;//DXVA2_NominalRange_Unknown;
 882     ext->VideoTransferMatrix = 0;//DXVA2_VideoTransferMatrix_Unknown;
 883     ext->VideoLighting = 0;//DXVA2_VideoLighting_Unknown;
 884     ext->VideoPrimaries = 0;//DXVA2_VideoPrimaries_Unknown;
 885     ext->VideoTransferFunction = 0;//DXVA2_VideoTransFunc_Unknown;
 886
 887     /* List all configurations available for the decoder */
 888     UINT                      cfg_count = 0;
 889     DXVA2_ConfigPictureDecode *cfg_list = NULL;
 890     if (FAILED(IDirectXVideoDecoderService_GetDecoderConfigurations(va->vs,
 891                                                                     &va->input,
 892                                                                     &dsc,
 893                                                                     NULL,
 894                                                                     &cfg_count,
 895                                                                     &cfg_list))) {
 896         msg_Err(va->log, "IDirectXVideoDecoderService_GetDecoderConfigurations failed\n");
 897         return VLC_EGENERIC;
 898     }
 899     msg_Dbg(va->log, "we got %d decoder configurations", cfg_count);
 900
 901     /* Select the best decoder configuration */
 902     bool has_cfg = false;
 903     for (unsigned i = 0; i < cfg_count; i++) {
 904         const DXVA2_ConfigPictureDecode *cfg = &cfg_list[i];
 905
 906         /* */
 907         msg_Dbg(va->log, "configuration[%d] ConfigBitstreamRaw %d",
 908                 i, cfg->ConfigBitstreamRaw);
 909
 910         /* */
 911         if ((!has_cfg && cfg->ConfigBitstreamRaw == 1) ||
 912             (codec_id == CODEC_ID_H264 && cfg->ConfigBitstreamRaw == 2)) {
 913             va->cfg = *cfg;
 914             has_cfg = true;
 915         }
 916     }
 917     CoTaskMemFree(cfg_list);
 918     if (!has_cfg) {
 919         msg_Err(va->log, "Failed to find a supported decoder configuration");
 920         return VLC_EGENERIC;
 921     }
 922
 923     /* Create the decoder */
 924     IDirectXVideoDecoder *decoder;
 925     if (FAILED(IDirectXVideoDecoderService_CreateVideoDecoder(va->vs,
 926                                                               &va->input,
 927                                                               &dsc,
 928                                                               &va->cfg,
 929                                                               surface_list,
 930                                                               va->surface_count,
 931                                                               &decoder))) {
 932         msg_Err(va->log, "IDirectXVideoDecoderService_CreateVideoDecoder failed\n");
 933         return VLC_EGENERIC;
 934     }
 935     va->decoder = decoder;
 936     msg_Dbg(va->log, "IDirectXVideoDecoderService_CreateVideoDecoder succeed");
 937     return VLC_SUCCESS;
 938 }
 939 static void DxDestroyVideoDecoder(vlc_va_dxva2_t *va)
 940 {
 941     if (va->decoder)
 942         IDirectXVideoDecoder_Release(va->decoder);
 943     va->decoder = NULL;
 944
 945     for (unsigned i = 0; i < va->surface_count; i++)
 946         IDirect3DSurface9_Release(va->surface[i].d3d);
 947     va->surface_count = 0;
 948 }
 949 static int DxResetVideoDecoder(vlc_va_dxva2_t *va)
 950 {
 951     msg_Err(va->log, "DxResetVideoDecoder unimplemented");
 952     return VLC_EGENERIC;
 953 }
 954
 955 static void DxCreateVideoConversion(vlc_va_dxva2_t *va)
 956 {
 957     switch (va->render) {
 958     case MAKEFOURCC('N','V','1','2'):
 959         va->output = MAKEFOURCC('Y','V','1','2');
 960         break;
 961     default:
 962         va->output = va->render;
 963         break;
 964     }
 965     CopyInitCache(&va->surface_cache, va->surface_width);
 966 }
 967 static void DxDestroyVideoConversion(vlc_va_dxva2_t *va)
 968 {
 969     CopyCleanCache(&va->surface_cache);
 970 }
 971 #else
 972 vlc_va_t *vlc_va_NewDxva2(vlc_object_t *log, int codec_id)
 973 {
 974     (void)log;
 975     (void)codec_id;
 976     return NULL;
 977 }
 978 #endif