summaryrefslogtreecommitdiffstats
path: root/video/out/hwdec/hwdec_vaapi.c
blob: 6b78b37e42925f50d92045148ba28997bdeec826 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
/*
 * This file is part of mpv.
 *
 * mpv is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * mpv is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with mpv.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <stddef.h>
#include <string.h>
#include <assert.h>
#include <unistd.h>

#include <libavutil/hwcontext.h>
#include <libavutil/hwcontext_vaapi.h>

#include "config.h"

#include "video/out/hwdec/hwdec_vaapi.h"

#if HAVE_VAAPI_DRM
#include "libmpv/render_gl.h"
#endif

#if HAVE_VAAPI_X11
#include <va/va_x11.h>

static VADisplay *create_x11_va_display(struct ra *ra)
{
    Display *x11 = ra_get_native_resource(ra, "x11");
    return x11 ? vaGetDisplay(x11) : NULL;
}
#endif

#if HAVE_VAAPI_WAYLAND
#include <va/va_wayland.h>

static VADisplay *create_wayland_va_display(struct ra *ra)
{
    struct wl_display *wl = ra_get_native_resource(ra, "wl");
    return wl ? vaGetDisplayWl(wl) : NULL;
}
#endif

#if HAVE_VAAPI_DRM
#include <va/va_drm.h>

static VADisplay *create_drm_va_display(struct ra *ra)
{
    mpv_opengl_drm_params *params = ra_get_native_resource(ra, "drm_params");
    if (!params || params->render_fd < 0)
        return NULL;

    return vaGetDisplayDRM(params->render_fd);
}
#endif

struct va_create_native {
    const char *name;
    VADisplay *(*create)(struct ra *ra);
};

static const struct va_create_native create_native_cbs[] = {
#if HAVE_VAAPI_X11
    {"x11",     create_x11_va_display},
#endif
#if HAVE_VAAPI_WAYLAND
    {"wayland", create_wayland_va_display},
#endif
#if HAVE_VAAPI_DRM
    {"drm",     create_drm_va_display},
#endif
};

static VADisplay *create_native_va_display(struct ra *ra, struct mp_log *log)
{
    for (int n = 0; n < MP_ARRAY_SIZE(create_native_cbs); n++) {
        const struct va_create_native *disp = &create_native_cbs[n];
        mp_verbose(log, "Trying to open a %s VA display...\n", disp->name);
        VADisplay *display = disp->create(ra);
        if (display)
            return display;
    }
    return NULL;
}

static void determine_working_formats(struct ra_hwdec *hw);

static void uninit(struct ra_hwdec *hw)
{
    struct priv_owner *p = hw->priv;
    if (p->ctx)
        hwdec_devices_remove(hw->devs, &p->ctx->hwctx);
    va_destroy(p->ctx);
}

const static vaapi_interop_init interop_inits[] = {
#if HAVE_GL
    vaapi_gl_init,
#endif
#if HAVE_VULKAN
    vaapi_vk_init,
#endif
    NULL
};

static int init(struct ra_hwdec *hw)
{
    struct priv_owner *p = hw->priv;

    for (int i = 0; interop_inits[i]; i++) {
        if (interop_inits[i](hw)) {
            break;
        }
    }

    if (!p->interop_map || !p->interop_unmap) {
        MP_VERBOSE(hw, "VAAPI hwdec only works with OpenGL or Vulkan backends.\n");
        return -1;
    }

    p->display = create_native_va_display(hw->ra, hw->log);
    if (!p->display) {
        MP_VERBOSE(hw, "Could not create a VA display.\n");
        return -1;
    }

    p->ctx = va_initialize(p->display, hw->log, true);
    if (!p->ctx) {
        vaTerminate(p->display);
        return -1;
    }
    if (!p->ctx->av_device_ref) {
        MP_VERBOSE(hw, "libavutil vaapi code rejected the driver?\n");
        return -1;
    }

    if (hw->probing && va_guess_if_emulated(p->ctx)) {
        return -1;
    }

    determine_working_formats(hw);
    if (!p->formats || !p->formats[0]) {
        return -1;
    }

    p->ctx->hwctx.supported_formats = p->formats;
    p->ctx->hwctx.driver_name = hw->driver->name;
    hwdec_devices_add(hw->devs, &p->ctx->hwctx);
    return 0;
}

static void mapper_unmap(struct ra_hwdec_mapper *mapper)
{
    struct priv_owner *p_owner = mapper->owner->priv;
    VADisplay *display = p_owner->display;
    struct priv *p = mapper->priv;
    VAStatus status;

    p_owner->interop_unmap(mapper);

#if VA_CHECK_VERSION(1, 1, 0)
    if (p->surface_acquired) {
        for (int n = 0; n < p->desc.num_objects; n++)
            close(p->desc.objects[n].fd);
        p->surface_acquired = false;
    }
#endif

    if (p->buffer_acquired) {
        status = vaReleaseBufferHandle(display, p->current_image.buf);
        CHECK_VA_STATUS(mapper, "vaReleaseBufferHandle()");
        p->buffer_acquired = false;
    }
    if (p->current_image.image_id != VA_INVALID_ID) {
        status = vaDestroyImage(display, p->current_image.image_id);
        CHECK_VA_STATUS(mapper, "vaDestroyImage()");
        p->current_image.image_id = VA_INVALID_ID;
    }
}

static void mapper_uninit(struct ra_hwdec_mapper *mapper)
{
    struct priv_owner *p_owner = mapper->owner->priv;
    if (p_owner->interop_uninit) {
        p_owner->interop_uninit(mapper);
    }
}

static bool check_fmt(struct ra_hwdec_mapper *mapper, int fmt)
{
    struct priv_owner *p_owner = mapper->owner->priv;
    for (int n = 0; p_owner->formats && p_owner->formats[n]; n++) {
        if (p_owner->formats[n] == fmt)
            return true;
    }
    return false;
}

static int mapper_init(struct ra_hwdec_mapper *mapper)
{
    struct priv_owner *p_owner = mapper->owner->priv;
    struct priv *p = mapper->priv;

    p->current_image.buf = p->current_image.image_id = VA_INVALID_ID;

    mapper->dst_params = mapper->src_params;
    mapper->dst_params.imgfmt = mapper->src_params.hw_subfmt;
    mapper->dst_params.hw_subfmt = 0;

    struct ra_imgfmt_desc desc = {0};

    if (!ra_get_imgfmt_desc(mapper->ra, mapper->dst_params.imgfmt, &desc))
        return -1;

    p->num_planes = desc.num_planes;
    mp_image_set_params(&p->layout, &mapper->dst_params);

    if (p_owner->interop_init)
        if (!p_owner->interop_init(mapper, &desc))
            return -1;

    if (!p_owner->probing_formats && !check_fmt(mapper, mapper->dst_params.imgfmt))
    {
        MP_FATAL(mapper, "unsupported VA image format %s\n",
                 mp_imgfmt_to_name(mapper->dst_params.imgfmt));
        return -1;
    }

    return 0;
}

static int mapper_map(struct ra_hwdec_mapper *mapper)
{
    struct priv_owner *p_owner = mapper->owner->priv;
    struct priv *p = mapper->priv;
    VAStatus status;
    VADisplay *display = p_owner->display;

#if VA_CHECK_VERSION(1, 1, 0)
    if (p->esh_not_implemented)
        goto esh_failed;

    status = vaExportSurfaceHandle(display, va_surface_id(mapper->src),
                                   VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME_2,
                                   VA_EXPORT_SURFACE_READ_ONLY |
                                   VA_EXPORT_SURFACE_SEPARATE_LAYERS,
                                   &p->desc);
    if (!CHECK_VA_STATUS_LEVEL(mapper, "vaExportSurfaceHandle()",
                               p_owner->probing_formats ? MSGL_V : MSGL_ERR)) {
        if (status == VA_STATUS_ERROR_UNIMPLEMENTED)
            p->esh_not_implemented = true;
        goto esh_failed;
    }
    vaSyncSurface(display, va_surface_id(mapper->src));
    // No need to error out if sync fails, but good to know if it did.
    CHECK_VA_STATUS(mapper, "vaSyncSurface()");
    p->surface_acquired = true;

    if (!p_owner->interop_map(mapper))
        goto esh_failed;

    if (p->desc.fourcc == VA_FOURCC_YV12)
        MPSWAP(struct ra_tex*, mapper->tex[1], mapper->tex[2]);

    return 0;

esh_failed:
    if (p->surface_acquired) {
        for (int n = 0; n < p->desc.num_objects; n++)
            close(p->desc.objects[n].fd);
        p->surface_acquired = false;
    }
#endif // VA_CHECK_VERSION

    if (p_owner->interop_map_legacy) {
        VAImage *va_image = &p->current_image;
        status = vaDeriveImage(display, va_surface_id(mapper->src), va_image);
        if (!CHECK_VA_STATUS(mapper, "vaDeriveImage()"))
            goto err;

        VABufferInfo buffer_info = {.mem_type = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME};
        status = vaAcquireBufferHandle(display, va_image->buf, &buffer_info);
        if (!CHECK_VA_STATUS(mapper, "vaAcquireBufferHandle()"))
            goto err;
        p->buffer_acquired = true;

        int drm_fmts[8] = {
            // 1 bytes per component, 1-4 components
            MKTAG('R', '8', ' ', ' '),       // DRM_FORMAT_R8
            MKTAG('G', 'R', '8', '8'),       // DRM_FORMAT_GR88
            0,                               // untested (DRM_FORMAT_RGB888?)
            0,                               // untested (DRM_FORMAT_RGBA8888?)
            // 2 bytes per component, 1-4 components
            MKTAG('R', '1', '6', ' '),       // proposed DRM_FORMAT_R16
            MKTAG('G', 'R', '3', '2'),       // proposed DRM_FORMAT_GR32
            0,                               // N/A
            0,                               // N/A
        };

        if (!p_owner->interop_map_legacy(mapper, &buffer_info, drm_fmts))
            goto err;

        if (va_image->format.fourcc == VA_FOURCC_YV12)
            MPSWAP(struct ra_tex*, mapper->tex[1], mapper->tex[2]);

        return 0;
    } else {
        mapper_unmap(mapper);
        goto err;
    }

err:
    if (!p_owner->probing_formats)
        MP_FATAL(mapper, "mapping VAAPI EGL image failed\n");
    return -1;
}

static bool try_format(struct ra_hwdec *hw, struct mp_image *surface)
{
    bool ok = false;
    struct ra_hwdec_mapper *mapper = ra_hwdec_mapper_create(hw, &surface->params);
    if (mapper)
        ok = ra_hwdec_mapper_map(mapper, surface) >= 0;
    ra_hwdec_mapper_free(&mapper);
    return ok;
}

static void determine_working_formats(struct ra_hwdec *hw)
{
    struct priv_owner *p = hw->priv;
    int num_formats = 0;
    int *formats = NULL;

    p->probing_formats = true;

    AVHWFramesConstraints *fc =
            av_hwdevice_get_hwframe_constraints(p->ctx->av_device_ref, NULL);
    if (!fc) {
        MP_WARN(hw, "failed to retrieve libavutil frame constraints\n");
        goto done;
    }
    for (int n = 0; fc->valid_sw_formats[n] != AV_PIX_FMT_NONE; n++) {
        AVBufferRef *fref = NULL;
        struct mp_image *s = NULL;
        AVFrame *frame = NULL;
        fref = av_hwframe_ctx_alloc(p->ctx->av_device_ref);
        if (!fref)
            goto err;
        AVHWFramesContext *fctx = (void *)fref->data;
        fctx->format = AV_PIX_FMT_VAAPI;
        fctx->sw_format = fc->valid_sw_formats[n];
        fctx->width = 128;
        fctx->height = 128;
        if (av_hwframe_ctx_init(fref) < 0)
            goto err;
        frame = av_frame_alloc();
        if (!frame)
            goto err;
        if (av_hwframe_get_buffer(fref, frame, 0) < 0)
            goto err;
        s = mp_image_from_av_frame(frame);
        if (!s || !mp_image_params_valid(&s->params))
            goto err;
        if (try_format(hw, s))
            MP_TARRAY_APPEND(p, formats, num_formats, s->params.hw_subfmt);
    err:
        talloc_free(s);
        av_frame_free(&frame);
        av_buffer_unref(&fref);
    }
    av_hwframe_constraints_free(&fc);

done:
    MP_TARRAY_APPEND(p, formats, num_formats, 0); // terminate it
    p->formats = formats;
    p->probing_formats = false;

    MP_VERBOSE(hw, "Supported formats:\n");
    for (int n = 0; formats[n]; n++)
        MP_VERBOSE(hw, " %s\n", mp_imgfmt_to_name(formats[n]));
}

const struct ra_hwdec_driver ra_hwdec_vaegl = {
    .name = "vaapi-egl",
    .priv_size = sizeof(struct priv_owner),
    .imgfmts = {IMGFMT_VAAPI, 0},
    .init = init,
    .uninit = uninit,
    .mapper = &(const struct ra_hwdec_mapper_driver){
        .priv_size = sizeof(struct priv),
        .init = mapper_init,
        .uninit = mapper_uninit,
        .map = mapper_map,
        .unmap = mapper_unmap,
    },
};