Merge commit 'e18ba2dfd2d19aedc8afccf011d5fd0833352423'
[ffmpeg.git] / libavutil / hwcontext_dxva2.c
1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg 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  * FFmpeg 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 FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18
19 #include <windows.h>
20
21 #if !defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600
22 #undef _WIN32_WINNT
23 #define _WIN32_WINNT 0x0600
24 #endif
25 #define DXVA2API_USE_BITFIELDS
26 #define COBJMACROS
27
28 #include <d3d9.h>
29 #include <dxva2api.h>
30 #include <initguid.h>
31
32 #include "avassert.h"
33 #include "common.h"
34 #include "hwcontext.h"
35 #include "hwcontext_dxva2.h"
36 #include "hwcontext_internal.h"
37 #include "imgutils.h"
38 #include "pixdesc.h"
39 #include "pixfmt.h"
40 #include "compat/w32dlfcn.h"
41
42 typedef IDirect3D9* WINAPI pDirect3DCreate9(UINT);
43 typedef HRESULT WINAPI pDirect3DCreate9Ex(UINT, IDirect3D9Ex **);
44 typedef HRESULT WINAPI pCreateDeviceManager9(UINT *, IDirect3DDeviceManager9 **);
45
46 #define FF_D3DCREATE_FLAGS (D3DCREATE_SOFTWARE_VERTEXPROCESSING | \
47                             D3DCREATE_MULTITHREADED | \
48                             D3DCREATE_FPU_PRESERVE)
49
50 static const D3DPRESENT_PARAMETERS dxva2_present_params = {
51     .Windowed         = TRUE,
52     .BackBufferWidth  = 640,
53     .BackBufferHeight = 480,
54     .BackBufferCount  = 0,
55     .SwapEffect       = D3DSWAPEFFECT_DISCARD,
56     .Flags            = D3DPRESENTFLAG_VIDEO,
57 };
58
59 typedef struct DXVA2Mapping {
60     uint32_t palette_dummy[256];
61 } DXVA2Mapping;
62
63 typedef struct DXVA2FramesContext {
64     IDirect3DSurface9 **surfaces_internal;
65     int              nb_surfaces_used;
66
67     HANDLE  device_handle;
68     IDirectXVideoAccelerationService *service;
69
70     D3DFORMAT format;
71 } DXVA2FramesContext;
72
73 typedef struct DXVA2DevicePriv {
74     HMODULE d3dlib;
75     HMODULE dxva2lib;
76
77     HANDLE device_handle;
78
79     IDirect3D9       *d3d9;
80     IDirect3DDevice9 *d3d9device;
81 } DXVA2DevicePriv;
82
83 static const struct {
84     D3DFORMAT d3d_format;
85     enum AVPixelFormat pix_fmt;
86 } supported_formats[] = {
87     { MKTAG('N', 'V', '1', '2'), AV_PIX_FMT_NV12 },
88     { MKTAG('P', '0', '1', '0'), AV_PIX_FMT_P010 },
89     { D3DFMT_P8,                 AV_PIX_FMT_PAL8 },
90 };
91
92 DEFINE_GUID(video_decoder_service,   0xfc51a551, 0xd5e7, 0x11d9, 0xaf, 0x55, 0x00, 0x05, 0x4e, 0x43, 0xff, 0x02);
93 DEFINE_GUID(video_processor_service, 0xfc51a552, 0xd5e7, 0x11d9, 0xaf, 0x55, 0x00, 0x05, 0x4e, 0x43, 0xff, 0x02);
94
95 static void dxva2_frames_uninit(AVHWFramesContext *ctx)
96 {
97     AVDXVA2DeviceContext *device_hwctx = ctx->device_ctx->hwctx;
98     AVDXVA2FramesContext *frames_hwctx = ctx->hwctx;
99     DXVA2FramesContext *s = ctx->internal->priv;
100     int i;
101
102     if (frames_hwctx->decoder_to_release)
103         IDirectXVideoDecoder_Release(frames_hwctx->decoder_to_release);
104
105     if (s->surfaces_internal) {
106         for (i = 0; i < frames_hwctx->nb_surfaces; i++) {
107             if (s->surfaces_internal[i])
108                 IDirect3DSurface9_Release(s->surfaces_internal[i]);
109         }
110     }
111     av_freep(&s->surfaces_internal);
112
113     if (s->service) {
114         IDirectXVideoAccelerationService_Release(s->service);
115         s->service = NULL;
116     }
117
118     if (s->device_handle != INVALID_HANDLE_VALUE) {
119         IDirect3DDeviceManager9_CloseDeviceHandle(device_hwctx->devmgr, s->device_handle);
120         s->device_handle = INVALID_HANDLE_VALUE;
121     }
122 }
123
124 static AVBufferRef *dxva2_pool_alloc(void *opaque, int size)
125 {
126     AVHWFramesContext      *ctx = (AVHWFramesContext*)opaque;
127     DXVA2FramesContext       *s = ctx->internal->priv;
128     AVDXVA2FramesContext *hwctx = ctx->hwctx;
129
130     if (s->nb_surfaces_used < hwctx->nb_surfaces) {
131         s->nb_surfaces_used++;
132         return av_buffer_create((uint8_t*)s->surfaces_internal[s->nb_surfaces_used - 1],
133                                 sizeof(*hwctx->surfaces), NULL, 0, 0);
134     }
135
136     return NULL;
137 }
138
139 static int dxva2_init_pool(AVHWFramesContext *ctx)
140 {
141     AVDXVA2FramesContext *frames_hwctx = ctx->hwctx;
142     AVDXVA2DeviceContext *device_hwctx = ctx->device_ctx->hwctx;
143     DXVA2FramesContext              *s = ctx->internal->priv;
144     int decode = (frames_hwctx->surface_type == DXVA2_VideoDecoderRenderTarget);
145
146     int i;
147     HRESULT hr;
148
149     if (ctx->initial_pool_size <= 0)
150         return 0;
151
152     hr = IDirect3DDeviceManager9_OpenDeviceHandle(device_hwctx->devmgr, &s->device_handle);
153     if (FAILED(hr)) {
154         av_log(ctx, AV_LOG_ERROR, "Failed to open device handle\n");
155         return AVERROR_UNKNOWN;
156     }
157
158     hr = IDirect3DDeviceManager9_GetVideoService(device_hwctx->devmgr,
159                                                  s->device_handle,
160                                                  decode ? &video_decoder_service : &video_processor_service,
161                                                  (void **)&s->service);
162     if (FAILED(hr)) {
163         av_log(ctx, AV_LOG_ERROR, "Failed to create the video service\n");
164         return AVERROR_UNKNOWN;
165     }
166
167     for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++) {
168         if (ctx->sw_format == supported_formats[i].pix_fmt) {
169             s->format = supported_formats[i].d3d_format;
170             break;
171         }
172     }
173     if (i == FF_ARRAY_ELEMS(supported_formats)) {
174         av_log(ctx, AV_LOG_ERROR, "Unsupported pixel format: %s\n",
175                av_get_pix_fmt_name(ctx->sw_format));
176         return AVERROR(EINVAL);
177     }
178
179     s->surfaces_internal = av_mallocz_array(ctx->initial_pool_size,
180                                             sizeof(*s->surfaces_internal));
181     if (!s->surfaces_internal)
182         return AVERROR(ENOMEM);
183
184     hr = IDirectXVideoAccelerationService_CreateSurface(s->service,
185                                                         ctx->width, ctx->height,
186                                                         ctx->initial_pool_size - 1,
187                                                         s->format, D3DPOOL_DEFAULT, 0,
188                                                         frames_hwctx->surface_type,
189                                                         s->surfaces_internal, NULL);
190     if (FAILED(hr)) {
191         av_log(ctx, AV_LOG_ERROR, "Could not create the surfaces\n");
192         return AVERROR_UNKNOWN;
193     }
194
195     ctx->internal->pool_internal = av_buffer_pool_init2(sizeof(*s->surfaces_internal),
196                                                         ctx, dxva2_pool_alloc, NULL);
197     if (!ctx->internal->pool_internal)
198         return AVERROR(ENOMEM);
199
200     frames_hwctx->surfaces    = s->surfaces_internal;
201     frames_hwctx->nb_surfaces = ctx->initial_pool_size;
202
203     return 0;
204 }
205
206 static int dxva2_frames_init(AVHWFramesContext *ctx)
207 {
208     AVDXVA2FramesContext *hwctx = ctx->hwctx;
209     DXVA2FramesContext       *s = ctx->internal->priv;
210     int ret;
211
212     if (hwctx->surface_type != DXVA2_VideoDecoderRenderTarget &&
213         hwctx->surface_type != DXVA2_VideoProcessorRenderTarget) {
214         av_log(ctx, AV_LOG_ERROR, "Unknown surface type: %lu\n",
215                hwctx->surface_type);
216         return AVERROR(EINVAL);
217     }
218
219     s->device_handle = INVALID_HANDLE_VALUE;
220
221     /* init the frame pool if the caller didn't provide one */
222     if (!ctx->pool) {
223         ret = dxva2_init_pool(ctx);
224         if (ret < 0) {
225             av_log(ctx, AV_LOG_ERROR, "Error creating an internal frame pool\n");
226             return ret;
227         }
228     }
229
230     return 0;
231 }
232
233 static int dxva2_get_buffer(AVHWFramesContext *ctx, AVFrame *frame)
234 {
235     frame->buf[0] = av_buffer_pool_get(ctx->pool);
236     if (!frame->buf[0])
237         return AVERROR(ENOMEM);
238
239     frame->data[3] = frame->buf[0]->data;
240     frame->format  = AV_PIX_FMT_DXVA2_VLD;
241     frame->width   = ctx->width;
242     frame->height  = ctx->height;
243
244     return 0;
245 }
246
247 static int dxva2_transfer_get_formats(AVHWFramesContext *ctx,
248                                       enum AVHWFrameTransferDirection dir,
249                                       enum AVPixelFormat **formats)
250 {
251     enum AVPixelFormat *fmts;
252
253     fmts = av_malloc_array(2, sizeof(*fmts));
254     if (!fmts)
255         return AVERROR(ENOMEM);
256
257     fmts[0] = ctx->sw_format;
258     fmts[1] = AV_PIX_FMT_NONE;
259
260     *formats = fmts;
261
262     return 0;
263 }
264
265 static void dxva2_unmap_frame(AVHWFramesContext *ctx, HWMapDescriptor *hwmap)
266 {
267     IDirect3DSurface9 *surface = (IDirect3DSurface9*)hwmap->source->data[3];
268     IDirect3DSurface9_UnlockRect(surface);
269     av_freep(&hwmap->priv);
270 }
271
272 static int dxva2_map_frame(AVHWFramesContext *ctx, AVFrame *dst, const AVFrame *src,
273                            int flags)
274 {
275     IDirect3DSurface9 *surface = (IDirect3DSurface9*)src->data[3];
276     DXVA2Mapping      *map;
277     D3DSURFACE_DESC    surfaceDesc;
278     D3DLOCKED_RECT     LockedRect;
279     HRESULT            hr;
280     int i, err, nb_planes;
281     int lock_flags = 0;
282
283     nb_planes = av_pix_fmt_count_planes(dst->format);
284
285     hr = IDirect3DSurface9_GetDesc(surface, &surfaceDesc);
286     if (FAILED(hr)) {
287         av_log(ctx, AV_LOG_ERROR, "Error getting a surface description\n");
288         return AVERROR_UNKNOWN;
289     }
290
291     if (!(flags & AV_HWFRAME_MAP_WRITE))
292         lock_flags |= D3DLOCK_READONLY;
293     if (flags & AV_HWFRAME_MAP_OVERWRITE)
294         lock_flags |= D3DLOCK_DISCARD;
295
296     hr = IDirect3DSurface9_LockRect(surface, &LockedRect, NULL, lock_flags);
297     if (FAILED(hr)) {
298         av_log(ctx, AV_LOG_ERROR, "Unable to lock DXVA2 surface\n");
299         return AVERROR_UNKNOWN;
300     }
301
302     map = av_mallocz(sizeof(*map));
303     if (!map)
304         goto fail;
305
306     err = ff_hwframe_map_create(src->hw_frames_ctx, dst, src,
307                                 dxva2_unmap_frame, map);
308     if (err < 0) {
309         av_freep(&map);
310         goto fail;
311     }
312
313     for (i = 0; i < nb_planes; i++)
314         dst->linesize[i] = LockedRect.Pitch;
315
316     av_image_fill_pointers(dst->data, dst->format, surfaceDesc.Height,
317                            (uint8_t*)LockedRect.pBits, dst->linesize);
318
319     if (dst->format == AV_PIX_FMT_PAL8)
320         dst->data[1] = (uint8_t*)map->palette_dummy;
321
322     return 0;
323 fail:
324     IDirect3DSurface9_UnlockRect(surface);
325     return err;
326 }
327
328 static int dxva2_transfer_data_to(AVHWFramesContext *ctx, AVFrame *dst,
329                                   const AVFrame *src)
330 {
331     AVFrame *map;
332     int ret;
333
334     if (src->format != ctx->sw_format)
335         return AVERROR(ENOSYS);
336
337     map = av_frame_alloc();
338     if (!map)
339         return AVERROR(ENOMEM);
340     map->format = dst->format;
341
342     ret = dxva2_map_frame(ctx, map, dst, AV_HWFRAME_MAP_WRITE | AV_HWFRAME_MAP_OVERWRITE);
343     if (ret < 0)
344         goto fail;
345
346     av_image_copy(map->data, map->linesize, src->data, src->linesize,
347                   ctx->sw_format, src->width, src->height);
348
349 fail:
350     av_frame_free(&map);
351     return ret;
352 }
353
354 static int dxva2_transfer_data_from(AVHWFramesContext *ctx, AVFrame *dst,
355                                     const AVFrame *src)
356 {
357     AVFrame *map;
358     ptrdiff_t src_linesize[4], dst_linesize[4];
359     int ret, i;
360
361     if (dst->format != ctx->sw_format)
362         return AVERROR(ENOSYS);
363
364     map = av_frame_alloc();
365     if (!map)
366         return AVERROR(ENOMEM);
367     map->format = dst->format;
368
369     ret = dxva2_map_frame(ctx, map, src, AV_HWFRAME_MAP_READ);
370     if (ret < 0)
371         goto fail;
372
373     for (i = 0; i < 4; i++) {
374         dst_linesize[i] = dst->linesize[i];
375         src_linesize[i] = map->linesize[i];
376     }
377     av_image_copy_uc_from(dst->data, dst_linesize, map->data, src_linesize,
378                           ctx->sw_format, src->width, src->height);
379 fail:
380     av_frame_free(&map);
381     return ret;
382 }
383
384 static int dxva2_map_from(AVHWFramesContext *ctx,
385                           AVFrame *dst, const AVFrame *src, int flags)
386 {
387     int err;
388
389     if (dst->format != AV_PIX_FMT_NONE && dst->format != ctx->sw_format)
390         return AVERROR(ENOSYS);
391     dst->format = ctx->sw_format;
392
393     err = dxva2_map_frame(ctx, dst, src, flags);
394     if (err < 0)
395         return err;
396
397     err = av_frame_copy_props(dst, src);
398     if (err < 0)
399         return err;
400
401     return 0;
402 }
403
404 static void dxva2_device_free(AVHWDeviceContext *ctx)
405 {
406     AVDXVA2DeviceContext *hwctx = ctx->hwctx;
407     DXVA2DevicePriv       *priv = ctx->user_opaque;
408
409     if (hwctx->devmgr && priv->device_handle != INVALID_HANDLE_VALUE)
410         IDirect3DDeviceManager9_CloseDeviceHandle(hwctx->devmgr, priv->device_handle);
411
412     if (hwctx->devmgr)
413         IDirect3DDeviceManager9_Release(hwctx->devmgr);
414
415     if (priv->d3d9device)
416         IDirect3DDevice9_Release(priv->d3d9device);
417
418     if (priv->d3d9)
419         IDirect3D9_Release(priv->d3d9);
420
421     if (priv->d3dlib)
422         dlclose(priv->d3dlib);
423
424     if (priv->dxva2lib)
425         dlclose(priv->dxva2lib);
426
427     av_freep(&ctx->user_opaque);
428 }
429
430 static int dxva2_device_create9(AVHWDeviceContext *ctx, UINT adapter)
431 {
432     DXVA2DevicePriv *priv = ctx->user_opaque;
433     D3DPRESENT_PARAMETERS d3dpp = dxva2_present_params;
434     D3DDISPLAYMODE d3ddm;
435     HRESULT hr;
436     pDirect3DCreate9 *createD3D = (pDirect3DCreate9 *)dlsym(priv->d3dlib, "Direct3DCreate9");
437     if (!createD3D) {
438         av_log(ctx, AV_LOG_ERROR, "Failed to locate Direct3DCreate9\n");
439         return AVERROR_UNKNOWN;
440     }
441
442     priv->d3d9 = createD3D(D3D_SDK_VERSION);
443     if (!priv->d3d9) {
444         av_log(ctx, AV_LOG_ERROR, "Failed to create IDirect3D object\n");
445         return AVERROR_UNKNOWN;
446     }
447
448     IDirect3D9_GetAdapterDisplayMode(priv->d3d9, adapter, &d3ddm);
449
450     d3dpp.BackBufferFormat = d3ddm.Format;
451
452     hr = IDirect3D9_CreateDevice(priv->d3d9, adapter, D3DDEVTYPE_HAL, GetDesktopWindow(),
453                                  FF_D3DCREATE_FLAGS,
454                                  &d3dpp, &priv->d3d9device);
455     if (FAILED(hr)) {
456         av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device\n");
457         return AVERROR_UNKNOWN;
458     }
459
460     return 0;
461 }
462
463 static int dxva2_device_create9ex(AVHWDeviceContext *ctx, UINT adapter)
464 {
465     DXVA2DevicePriv *priv = ctx->user_opaque;
466     D3DPRESENT_PARAMETERS d3dpp = dxva2_present_params;
467     D3DDISPLAYMODEEX modeex = {0};
468     IDirect3D9Ex *d3d9ex = NULL;
469     IDirect3DDevice9Ex *exdev = NULL;
470     HRESULT hr;
471     pDirect3DCreate9Ex *createD3DEx = (pDirect3DCreate9Ex *)dlsym(priv->d3dlib, "Direct3DCreate9Ex");
472     if (!createD3DEx)
473         return AVERROR(ENOSYS);
474
475     hr = createD3DEx(D3D_SDK_VERSION, &d3d9ex);
476     if (FAILED(hr))
477         return AVERROR_UNKNOWN;
478
479     IDirect3D9Ex_GetAdapterDisplayModeEx(d3d9ex, adapter, &modeex, NULL);
480
481     d3dpp.BackBufferFormat = modeex.Format;
482
483     hr = IDirect3D9Ex_CreateDeviceEx(d3d9ex, adapter, D3DDEVTYPE_HAL, GetDesktopWindow(),
484                                      FF_D3DCREATE_FLAGS,
485                                      &d3dpp, NULL, &exdev);
486     if (FAILED(hr)) {
487         IDirect3D9Ex_Release(d3d9ex);
488         return AVERROR_UNKNOWN;
489     }
490
491     av_log(ctx, AV_LOG_VERBOSE, "Using D3D9Ex device.\n");
492     priv->d3d9 = (IDirect3D9 *)d3d9ex;
493     priv->d3d9device = (IDirect3DDevice9 *)exdev;
494     return 0;
495 }
496
497 static int dxva2_device_create(AVHWDeviceContext *ctx, const char *device,
498                                AVDictionary *opts, int flags)
499 {
500     AVDXVA2DeviceContext *hwctx = ctx->hwctx;
501     DXVA2DevicePriv *priv;
502     pCreateDeviceManager9 *createDeviceManager = NULL;
503     unsigned resetToken = 0;
504     UINT adapter = D3DADAPTER_DEFAULT;
505     HRESULT hr;
506     int err;
507
508     if (device)
509         adapter = atoi(device);
510
511     priv = av_mallocz(sizeof(*priv));
512     if (!priv)
513         return AVERROR(ENOMEM);
514
515     ctx->user_opaque = priv;
516     ctx->free        = dxva2_device_free;
517
518     priv->device_handle = INVALID_HANDLE_VALUE;
519
520     priv->d3dlib = dlopen("d3d9.dll", 0);
521     if (!priv->d3dlib) {
522         av_log(ctx, AV_LOG_ERROR, "Failed to load D3D9 library\n");
523         return AVERROR_UNKNOWN;
524     }
525     priv->dxva2lib = dlopen("dxva2.dll", 0);
526     if (!priv->dxva2lib) {
527         av_log(ctx, AV_LOG_ERROR, "Failed to load DXVA2 library\n");
528         return AVERROR_UNKNOWN;
529     }
530
531     createDeviceManager = (pCreateDeviceManager9 *)dlsym(priv->dxva2lib,
532                                                          "DXVA2CreateDirect3DDeviceManager9");
533     if (!createDeviceManager) {
534         av_log(ctx, AV_LOG_ERROR, "Failed to locate DXVA2CreateDirect3DDeviceManager9\n");
535         return AVERROR_UNKNOWN;
536     }
537
538     if (dxva2_device_create9ex(ctx, adapter) < 0) {
539         // Retry with "classic" d3d9
540         err = dxva2_device_create9(ctx, adapter);
541         if (err < 0)
542             return err;
543     }
544
545     hr = createDeviceManager(&resetToken, &hwctx->devmgr);
546     if (FAILED(hr)) {
547         av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device manager\n");
548         return AVERROR_UNKNOWN;
549     }
550
551     hr = IDirect3DDeviceManager9_ResetDevice(hwctx->devmgr, priv->d3d9device, resetToken);
552     if (FAILED(hr)) {
553         av_log(ctx, AV_LOG_ERROR, "Failed to bind Direct3D device to device manager\n");
554         return AVERROR_UNKNOWN;
555     }
556
557     hr = IDirect3DDeviceManager9_OpenDeviceHandle(hwctx->devmgr, &priv->device_handle);
558     if (FAILED(hr)) {
559         av_log(ctx, AV_LOG_ERROR, "Failed to open device handle\n");
560         return AVERROR_UNKNOWN;
561     }
562
563     return 0;
564 }
565
566 const HWContextType ff_hwcontext_type_dxva2 = {
567     .type                 = AV_HWDEVICE_TYPE_DXVA2,
568     .name                 = "DXVA2",
569
570     .device_hwctx_size    = sizeof(AVDXVA2DeviceContext),
571     .frames_hwctx_size    = sizeof(AVDXVA2FramesContext),
572     .frames_priv_size     = sizeof(DXVA2FramesContext),
573
574     .device_create        = dxva2_device_create,
575     .frames_init          = dxva2_frames_init,
576     .frames_uninit        = dxva2_frames_uninit,
577     .frames_get_buffer    = dxva2_get_buffer,
578     .transfer_get_formats = dxva2_transfer_get_formats,
579     .transfer_data_to     = dxva2_transfer_data_to,
580     .transfer_data_from   = dxva2_transfer_data_from,
581     .map_from             = dxva2_map_from,
582
583     .pix_fmts             = (const enum AVPixelFormat[]){ AV_PIX_FMT_DXVA2_VLD, AV_PIX_FMT_NONE },
584 };