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