mirror of
https://github.com/mpv-player/mpv
synced 2024-12-30 19:22:11 +00:00
a160405284
Another fix for the crazy and insane nvidia preemption behavior. This time, the situation is that we are using vo_opengl with vdpau interop, and that vdpau got preempted in the background while mpv was sitting idly. This can be e.g. reproduced by using: --force-window=immediate --idle --hwdec=vdpau and switching VTs. Then after switching back, load a video file. This will not let mp_vdpau_handle_preemption() perform preemption recovery, simply because it will do so only once vdp_decoder_create() has been called. There are some other API calls which trigger preemption, but many don't. Due to the way the libavcodec API works, vdp_decoder_create() is way too late. It does so when get_format returns. It notices creating the decoder fails, and continues calling get_format without the vdpau format. We could perhaps force it to reinit again (by adding a call to vdpau.c, that checks for preemption, and sets hwdec_request_reinit), but this seems too much of a mess. Solve it by calling API in mp_vdpau_handle_preemption() that empirically does trigger preemption: output_surface_put_bits_native(). This call is useless, and in fact should be doing nothing (empty update VdpRect). There's the slight chance that in theory it will slow down operation, but in practice it's bound to be harmless. It's the likely cheapest and simplest API call I've found that can trigger the fallback this way. (The driver is closed source, so it was up to trial & error.) Also, when initializing decoding, allow initial preemption recovery, which is needed to pass the test mention above.
566 lines
19 KiB
C
566 lines
19 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <assert.h>
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#include "vdpau.h"
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#include "osdep/threads.h"
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#include "osdep/timer.h"
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#include "video/out/x11_common.h"
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#include "img_format.h"
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#include "mp_image.h"
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#include "mp_image_pool.h"
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#include "vdpau_mixer.h"
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static struct mp_image *download_image(struct mp_hwdec_ctx *hwctx,
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struct mp_image *mpi,
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struct mp_image_pool *swpool)
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{
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struct mp_vdpau_ctx *ctx = hwctx->vdpau_ctx;
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struct vdp_functions *vdp = &ctx->vdp;
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VdpStatus vdp_st;
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struct mp_image *res = NULL;
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int w, h;
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mp_image_params_get_dsize(&mpi->params, &w, &h);
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// Abuse this lock for our own purposes. It could use its own lock instead.
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pthread_mutex_lock(&ctx->pool_lock);
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if (ctx->getimg_surface == VDP_INVALID_HANDLE ||
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ctx->getimg_w < w || ctx->getimg_h < h)
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{
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if (ctx->getimg_surface != VDP_INVALID_HANDLE) {
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vdp_st = vdp->output_surface_destroy(ctx->getimg_surface);
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CHECK_VDP_WARNING(ctx, "Error when calling vdp_output_surface_destroy");
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}
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ctx->getimg_surface = VDP_INVALID_HANDLE;
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vdp_st = vdp->output_surface_create(ctx->vdp_device,
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VDP_RGBA_FORMAT_B8G8R8A8, w, h,
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&ctx->getimg_surface);
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CHECK_VDP_WARNING(ctx, "Error when calling vdp_output_surface_create");
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if (vdp_st != VDP_STATUS_OK)
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goto error;
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ctx->getimg_w = w;
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ctx->getimg_h = h;
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}
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if (!ctx->getimg_mixer)
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ctx->getimg_mixer = mp_vdpau_mixer_create(ctx, ctx->log);
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VdpRect in = { .x1 = mpi->w, .y1 = mpi->h };
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VdpRect out = { .x1 = w, .y1 = h };
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if (mp_vdpau_mixer_render(ctx->getimg_mixer, NULL, ctx->getimg_surface, &out,
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mpi, &in) < 0)
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goto error;
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res = mp_image_pool_get(swpool, IMGFMT_BGR0, ctx->getimg_w, ctx->getimg_h);
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if (!res)
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goto error;
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void *dst_planes[] = { res->planes[0] };
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uint32_t dst_pitches[] = { res->stride[0] };
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vdp_st = vdp->output_surface_get_bits_native(ctx->getimg_surface, NULL,
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dst_planes, dst_pitches);
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CHECK_VDP_WARNING(ctx, "Error when calling vdp_output_surface_get_bits_native");
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if (vdp_st != VDP_STATUS_OK)
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goto error;
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mp_image_set_size(res, w, h);
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mp_image_copy_attributes(res, mpi);
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pthread_mutex_unlock(&ctx->pool_lock);
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return res;
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error:
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talloc_free(res);
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MP_WARN(ctx, "Error copying image from GPU.\n");
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pthread_mutex_unlock(&ctx->pool_lock);
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return NULL;
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}
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static void mark_vdpau_objects_uninitialized(struct mp_vdpau_ctx *ctx)
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{
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for (int i = 0; i < MAX_VIDEO_SURFACES; i++) {
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ctx->video_surfaces[i].surface = VDP_INVALID_HANDLE;
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ctx->video_surfaces[i].osurface = VDP_INVALID_HANDLE;
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ctx->video_surfaces[i].allocated = false;
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}
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ctx->vdp_device = VDP_INVALID_HANDLE;
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ctx->preemption_obj = VDP_INVALID_HANDLE;
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}
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static void preemption_callback(VdpDevice device, void *context)
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{
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struct mp_vdpau_ctx *ctx = context;
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pthread_mutex_lock(&ctx->preempt_lock);
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ctx->is_preempted = true;
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pthread_mutex_unlock(&ctx->preempt_lock);
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}
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static int win_x11_init_vdpau_procs(struct mp_vdpau_ctx *ctx, bool probing)
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{
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Display *x11 = ctx->x11;
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VdpStatus vdp_st;
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// Don't operate on ctx->vdp directly, so that even if init fails, ctx->vdp
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// will have the function pointers from the previous successful init, and
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// won't randomly make other code crash on calling NULL pointers.
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struct vdp_functions vdp = {0};
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if (!x11)
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return -1;
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struct vdp_function {
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const int id;
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int offset;
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};
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static const struct vdp_function vdp_func[] = {
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#define VDP_FUNCTION(_, macro_name, mp_name) {macro_name, offsetof(struct vdp_functions, mp_name)},
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#include "video/vdpau_functions.inc"
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#undef VDP_FUNCTION
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{0, -1}
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};
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VdpGetProcAddress *get_proc_address;
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vdp_st = vdp_device_create_x11(x11, DefaultScreen(x11), &ctx->vdp_device,
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&get_proc_address);
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if (vdp_st != VDP_STATUS_OK) {
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if (ctx->is_preempted) {
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MP_DBG(ctx, "Error calling vdp_device_create_x11 while preempted: %d\n",
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vdp_st);
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} else {
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int lev = probing ? MSGL_V : MSGL_ERR;
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mp_msg(ctx->log, lev, "Error when calling vdp_device_create_x11: %d\n",
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vdp_st);
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}
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return -1;
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}
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for (const struct vdp_function *dsc = vdp_func; dsc->offset >= 0; dsc++) {
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vdp_st = get_proc_address(ctx->vdp_device, dsc->id,
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(void **)((char *)&vdp + dsc->offset));
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if (vdp_st != VDP_STATUS_OK) {
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MP_ERR(ctx, "Error when calling vdp_get_proc_address(function "
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"id %d): %s\n", dsc->id,
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vdp.get_error_string ? vdp.get_error_string(vdp_st) : "?");
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return -1;
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}
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}
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ctx->vdp = vdp;
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ctx->get_proc_address = get_proc_address;
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vdp_st = vdp.output_surface_create(ctx->vdp_device, VDP_RGBA_FORMAT_B8G8R8A8,
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1, 1, &ctx->preemption_obj);
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if (vdp_st != VDP_STATUS_OK) {
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MP_ERR(ctx, "Could not create dummy object: %s",
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vdp.get_error_string(vdp_st));
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return -1;
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}
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vdp.preemption_callback_register(ctx->vdp_device, preemption_callback, ctx);
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return 0;
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}
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static int handle_preemption(struct mp_vdpau_ctx *ctx)
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{
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if (!ctx->is_preempted)
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return 0;
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mark_vdpau_objects_uninitialized(ctx);
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if (!ctx->preemption_user_notified) {
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MP_ERR(ctx, "Got display preemption notice! Will attempt to recover.\n");
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ctx->preemption_user_notified = true;
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}
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/* Trying to initialize seems to be quite slow, so only try once a
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* second to avoid using 100% CPU. */
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if (ctx->last_preemption_retry_fail &&
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mp_time_sec() - ctx->last_preemption_retry_fail < 1.0)
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return -1;
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if (win_x11_init_vdpau_procs(ctx, false) < 0) {
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ctx->last_preemption_retry_fail = mp_time_sec();
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return -1;
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}
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ctx->preemption_user_notified = false;
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ctx->last_preemption_retry_fail = 0;
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ctx->is_preempted = false;
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ctx->preemption_counter++;
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MP_INFO(ctx, "Recovered from display preemption.\n");
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return 1;
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}
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// Check whether vdpau display preemption happened. The caller provides a
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// preemption counter, which contains the logical timestamp of the last
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// preemption handled by the caller. The counter can be 0 for init.
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// If counter is NULL, only ever return -1 or 1.
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// Return values:
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// -1: the display is currently preempted, and vdpau can't be used
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// 0: a preemption event happened, and the caller must recover
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// (*counter is updated, and a second call will report status ok)
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// 1: everything is fine, no preemption happened
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int mp_vdpau_handle_preemption(struct mp_vdpau_ctx *ctx, uint64_t *counter)
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{
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int r = 1;
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pthread_mutex_lock(&ctx->preempt_lock);
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const void *p[4] = {&(uint32_t){0}};
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uint32_t stride[4] = {4};
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VdpRect rc = {0};
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ctx->vdp.output_surface_put_bits_native(ctx->preemption_obj, p, stride, &rc);
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// First time init
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if (counter && !*counter)
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*counter = ctx->preemption_counter;
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if (handle_preemption(ctx) < 0)
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r = -1;
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if (counter && r > 0 && *counter < ctx->preemption_counter) {
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*counter = ctx->preemption_counter;
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r = 0; // signal recovery after preemption
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}
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pthread_mutex_unlock(&ctx->preempt_lock);
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return r;
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}
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struct surface_ref {
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struct mp_vdpau_ctx *ctx;
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int index;
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};
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static void release_decoder_surface(void *ptr)
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{
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struct surface_ref *r = ptr;
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struct mp_vdpau_ctx *ctx = r->ctx;
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pthread_mutex_lock(&ctx->pool_lock);
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assert(ctx->video_surfaces[r->index].in_use);
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ctx->video_surfaces[r->index].in_use = false;
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pthread_mutex_unlock(&ctx->pool_lock);
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talloc_free(r);
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}
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static struct mp_image *create_ref(struct mp_vdpau_ctx *ctx, int index)
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{
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struct surface_entry *e = &ctx->video_surfaces[index];
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assert(!e->in_use);
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e->in_use = true;
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e->age = ctx->age_counter++;
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struct surface_ref *ref = talloc_ptrtype(NULL, ref);
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*ref = (struct surface_ref){ctx, index};
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struct mp_image *res =
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mp_image_new_custom_ref(&(struct mp_image){0}, ref,
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release_decoder_surface);
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if (res) {
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mp_image_setfmt(res, e->rgb ? IMGFMT_VDPAU_OUTPUT : IMGFMT_VDPAU);
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mp_image_set_size(res, e->w, e->h);
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res->planes[0] = (void *)"dummy"; // must be non-NULL, otherwise arbitrary
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res->planes[3] = (void *)(intptr_t)(e->rgb ? e->osurface : e->surface);
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}
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return res;
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}
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static struct mp_image *mp_vdpau_get_surface(struct mp_vdpau_ctx *ctx,
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VdpChromaType chroma,
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VdpRGBAFormat rgb_format,
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bool rgb, int w, int h)
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{
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struct vdp_functions *vdp = &ctx->vdp;
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int surface_index = -1;
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VdpStatus vdp_st;
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if (rgb) {
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chroma = (VdpChromaType)-1;
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} else {
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rgb_format = (VdpChromaType)-1;
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}
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pthread_mutex_lock(&ctx->pool_lock);
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// Destroy all unused surfaces that don't have matching parameters
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for (int n = 0; n < MAX_VIDEO_SURFACES; n++) {
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struct surface_entry *e = &ctx->video_surfaces[n];
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if (!e->in_use && e->allocated) {
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if (e->w != w || e->h != h || e->rgb != rgb ||
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e->chroma != chroma || e->rgb_format != rgb_format)
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{
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if (e->rgb) {
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vdp_st = vdp->output_surface_destroy(e->osurface);
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} else {
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vdp_st = vdp->video_surface_destroy(e->surface);
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}
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CHECK_VDP_WARNING(ctx, "Error when destroying surface");
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e->surface = e->osurface = VDP_INVALID_HANDLE;
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e->allocated = false;
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}
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}
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}
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// Try to find an existing unused surface
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for (int n = 0; n < MAX_VIDEO_SURFACES; n++) {
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struct surface_entry *e = &ctx->video_surfaces[n];
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if (!e->in_use && e->allocated) {
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assert(e->w == w && e->h == h);
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assert(e->chroma == chroma);
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assert(e->rgb_format == rgb_format);
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assert(e->rgb == rgb);
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if (surface_index >= 0) {
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struct surface_entry *other = &ctx->video_surfaces[surface_index];
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if (other->age < e->age)
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continue;
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}
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surface_index = n;
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}
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}
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if (surface_index >= 0)
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goto done;
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// Allocate new surface
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for (int n = 0; n < MAX_VIDEO_SURFACES; n++) {
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struct surface_entry *e = &ctx->video_surfaces[n];
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if (!e->in_use) {
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assert(e->surface == VDP_INVALID_HANDLE);
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assert(e->osurface == VDP_INVALID_HANDLE);
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assert(!e->allocated);
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e->chroma = chroma;
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e->rgb_format = rgb_format;
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e->rgb = rgb;
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e->w = w;
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e->h = h;
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if (mp_vdpau_handle_preemption(ctx, NULL) >= 0) {
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if (rgb) {
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vdp_st = vdp->output_surface_create(ctx->vdp_device, rgb_format,
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w, h, &e->osurface);
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e->allocated = e->osurface != VDP_INVALID_HANDLE;
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} else {
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vdp_st = vdp->video_surface_create(ctx->vdp_device, chroma,
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w, h, &e->surface);
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e->allocated = e->surface != VDP_INVALID_HANDLE;
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}
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CHECK_VDP_WARNING(ctx, "Error when allocating surface");
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} else {
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e->allocated = false;
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e->osurface = VDP_INVALID_HANDLE;
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e->surface = VDP_INVALID_HANDLE;
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}
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surface_index = n;
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goto done;
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}
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}
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done: ;
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struct mp_image *mpi = NULL;
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if (surface_index >= 0)
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mpi = create_ref(ctx, surface_index);
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pthread_mutex_unlock(&ctx->pool_lock);
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if (!mpi)
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MP_ERR(ctx, "no surfaces available in mp_vdpau_get_video_surface\n");
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return mpi;
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}
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struct mp_image *mp_vdpau_get_video_surface(struct mp_vdpau_ctx *ctx,
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VdpChromaType chroma, int w, int h)
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{
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return mp_vdpau_get_surface(ctx, chroma, 0, false, w, h);
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}
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struct mp_vdpau_ctx *mp_vdpau_create_device_x11(struct mp_log *log, Display *x11,
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bool probing)
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{
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struct mp_vdpau_ctx *ctx = talloc_ptrtype(NULL, ctx);
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*ctx = (struct mp_vdpau_ctx) {
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.log = log,
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.x11 = x11,
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.preemption_counter = 1,
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.hwctx = {
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.type = HWDEC_VDPAU,
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.priv = ctx,
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.vdpau_ctx = ctx,
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.download_image = download_image,
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},
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.getimg_surface = VDP_INVALID_HANDLE,
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};
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mpthread_mutex_init_recursive(&ctx->preempt_lock);
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pthread_mutex_init(&ctx->pool_lock, NULL);
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mark_vdpau_objects_uninitialized(ctx);
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if (win_x11_init_vdpau_procs(ctx, probing) < 0) {
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mp_vdpau_destroy(ctx);
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return NULL;
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}
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return ctx;
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}
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void mp_vdpau_destroy(struct mp_vdpau_ctx *ctx)
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{
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struct vdp_functions *vdp = &ctx->vdp;
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VdpStatus vdp_st;
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for (int i = 0; i < MAX_VIDEO_SURFACES; i++) {
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// can't hold references past context lifetime
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assert(!ctx->video_surfaces[i].in_use);
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if (ctx->video_surfaces[i].surface != VDP_INVALID_HANDLE) {
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vdp_st = vdp->video_surface_destroy(ctx->video_surfaces[i].surface);
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CHECK_VDP_WARNING(ctx, "Error when calling vdp_video_surface_destroy");
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}
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if (ctx->video_surfaces[i].osurface != VDP_INVALID_HANDLE) {
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vdp_st = vdp->output_surface_destroy(ctx->video_surfaces[i].osurface);
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CHECK_VDP_WARNING(ctx, "Error when calling vdp_output_surface_destroy");
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}
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}
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if (ctx->getimg_mixer)
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mp_vdpau_mixer_destroy(ctx->getimg_mixer);
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if (ctx->getimg_surface != VDP_INVALID_HANDLE) {
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vdp_st = vdp->output_surface_destroy(ctx->getimg_surface);
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CHECK_VDP_WARNING(ctx, "Error when calling vdp_output_surface_destroy");
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}
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|
|
if (ctx->preemption_obj != VDP_INVALID_HANDLE) {
|
|
vdp_st = vdp->output_surface_destroy(ctx->preemption_obj);
|
|
CHECK_VDP_WARNING(ctx, "Error when calling vdp_output_surface_destroy");
|
|
}
|
|
|
|
if (vdp->device_destroy && ctx->vdp_device != VDP_INVALID_HANDLE) {
|
|
vdp_st = vdp->device_destroy(ctx->vdp_device);
|
|
CHECK_VDP_WARNING(ctx, "Error when calling vdp_device_destroy");
|
|
}
|
|
|
|
pthread_mutex_destroy(&ctx->pool_lock);
|
|
pthread_mutex_destroy(&ctx->preempt_lock);
|
|
talloc_free(ctx);
|
|
}
|
|
|
|
bool mp_vdpau_get_format(int imgfmt, VdpChromaType *out_chroma_type,
|
|
VdpYCbCrFormat *out_pixel_format)
|
|
{
|
|
VdpChromaType chroma = VDP_CHROMA_TYPE_420;
|
|
VdpYCbCrFormat ycbcr = (VdpYCbCrFormat)-1;
|
|
|
|
switch (imgfmt) {
|
|
case IMGFMT_420P:
|
|
ycbcr = VDP_YCBCR_FORMAT_YV12;
|
|
break;
|
|
case IMGFMT_NV12:
|
|
ycbcr = VDP_YCBCR_FORMAT_NV12;
|
|
break;
|
|
case IMGFMT_YUYV:
|
|
ycbcr = VDP_YCBCR_FORMAT_YUYV;
|
|
chroma = VDP_CHROMA_TYPE_422;
|
|
break;
|
|
case IMGFMT_UYVY:
|
|
ycbcr = VDP_YCBCR_FORMAT_UYVY;
|
|
chroma = VDP_CHROMA_TYPE_422;
|
|
break;
|
|
case IMGFMT_VDPAU:
|
|
break;
|
|
default:
|
|
return false;
|
|
}
|
|
|
|
if (out_chroma_type)
|
|
*out_chroma_type = chroma;
|
|
if (out_pixel_format)
|
|
*out_pixel_format = ycbcr;
|
|
return true;
|
|
}
|
|
|
|
bool mp_vdpau_get_rgb_format(int imgfmt, VdpRGBAFormat *out_rgba_format)
|
|
{
|
|
VdpRGBAFormat format = (VdpRGBAFormat)-1;
|
|
|
|
switch (imgfmt) {
|
|
case IMGFMT_BGR32:
|
|
format = VDP_RGBA_FORMAT_B8G8R8A8; break;
|
|
default:
|
|
return false;
|
|
}
|
|
|
|
if (out_rgba_format)
|
|
*out_rgba_format = format;
|
|
return true;
|
|
}
|
|
|
|
// Use mp_vdpau_get_video_surface, and upload mpi to it. Return NULL on failure.
|
|
// If the image is already a vdpau video surface, just return a reference.
|
|
struct mp_image *mp_vdpau_upload_video_surface(struct mp_vdpau_ctx *ctx,
|
|
struct mp_image *mpi)
|
|
{
|
|
struct vdp_functions *vdp = &ctx->vdp;
|
|
VdpStatus vdp_st;
|
|
|
|
if (mpi->imgfmt == IMGFMT_VDPAU || mpi->imgfmt == IMGFMT_VDPAU_OUTPUT)
|
|
return mp_image_new_ref(mpi);
|
|
|
|
VdpChromaType chroma = (VdpChromaType)-1;
|
|
VdpYCbCrFormat ycbcr = (VdpYCbCrFormat)-1;
|
|
VdpRGBAFormat rgbafmt = (VdpRGBAFormat)-1;
|
|
bool rgb = !mp_vdpau_get_format(mpi->imgfmt, &chroma, &ycbcr);
|
|
if (rgb && !mp_vdpau_get_rgb_format(mpi->imgfmt, &rgbafmt))
|
|
return NULL;
|
|
|
|
struct mp_image *hwmpi =
|
|
mp_vdpau_get_surface(ctx, chroma, rgbafmt, rgb, mpi->w, mpi->h);
|
|
if (!hwmpi)
|
|
return NULL;
|
|
|
|
struct mp_image *src = mpi;
|
|
if (mpi->stride[0] < 0)
|
|
src = mp_image_new_copy(mpi); // unflips it when copying
|
|
|
|
if (hwmpi->imgfmt == IMGFMT_VDPAU) {
|
|
VdpVideoSurface surface = (intptr_t)hwmpi->planes[3];
|
|
const void *destdata[3] = {src->planes[0], src->planes[2], src->planes[1]};
|
|
if (src->imgfmt == IMGFMT_NV12)
|
|
destdata[1] = destdata[2];
|
|
vdp_st = vdp->video_surface_put_bits_y_cb_cr(surface,
|
|
ycbcr, destdata, src->stride);
|
|
} else {
|
|
VdpOutputSurface rgb_surface = (intptr_t)hwmpi->planes[3];
|
|
vdp_st = vdp->output_surface_put_bits_native(rgb_surface,
|
|
&(const void *){src->planes[0]},
|
|
&(uint32_t){src->stride[0]},
|
|
NULL);
|
|
}
|
|
CHECK_VDP_WARNING(ctx, "Error when uploading surface");
|
|
|
|
if (src != mpi)
|
|
talloc_free(src);
|
|
|
|
mp_image_copy_attributes(hwmpi, mpi);
|
|
return hwmpi;
|
|
}
|
|
|
|
bool mp_vdpau_guess_if_emulated(struct mp_vdpau_ctx *ctx)
|
|
{
|
|
struct vdp_functions *vdp = &ctx->vdp;
|
|
VdpStatus vdp_st;
|
|
char const* info = NULL;
|
|
vdp_st = vdp->get_information_string(&info);
|
|
CHECK_VDP_WARNING(ctx, "Error when calling vdp_get_information_string");
|
|
return vdp_st == VDP_STATUS_OK && info && strstr(info, "VAAPI");
|
|
}
|