mirror of
https://github.com/mpv-player/mpv
synced 2024-09-09 01:16:56 +02:00
![wm4](/assets/img/avatar_default.png)
Before this commit, each hw backend had their own specific struct types for context, and some, like VDA, had none at all. Add a context struct (mp_hwdec_ctx) that provides a somewhat generic way to pass the hwdec context around. Some things get slightly better, some slightly more verbose. mp_hwdec_info is still around; it's still needed, but is reduced to its role of handling delayed loading of the hwdec backend.
459 lines
15 KiB
C
459 lines
15 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 "video/img_format.h"
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#include "video/mp_image.h"
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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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}
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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)
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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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MP_ERR(ctx, "Error when calling vdp_device_create_x11: %d\n", vdp_st);
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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.preemption_callback_register(ctx->vdp_device,
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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) < 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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// 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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// First time init
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if (!*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 (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 (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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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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{
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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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.priv = ctx,
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.vdpau_ctx = ctx,
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},
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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) < 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 (vdp->device_destroy && ctx->vdp_device != VDP_INVALID_HANDLE) {
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vdp_st = vdp->device_destroy(ctx->vdp_device);
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CHECK_VDP_WARNING(ctx, "Error when calling vdp_device_destroy");
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}
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pthread_mutex_destroy(&ctx->pool_lock);
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pthread_mutex_destroy(&ctx->preempt_lock);
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talloc_free(ctx);
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}
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bool mp_vdpau_get_format(int imgfmt, VdpChromaType *out_chroma_type,
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VdpYCbCrFormat *out_pixel_format)
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{
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VdpChromaType chroma = VDP_CHROMA_TYPE_420;
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VdpYCbCrFormat ycbcr = (VdpYCbCrFormat)-1;
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switch (imgfmt) {
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case IMGFMT_420P:
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ycbcr = VDP_YCBCR_FORMAT_YV12;
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break;
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case IMGFMT_NV12:
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ycbcr = VDP_YCBCR_FORMAT_NV12;
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break;
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case IMGFMT_YUYV:
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ycbcr = VDP_YCBCR_FORMAT_YUYV;
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chroma = VDP_CHROMA_TYPE_422;
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break;
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case IMGFMT_UYVY:
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ycbcr = VDP_YCBCR_FORMAT_UYVY;
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chroma = VDP_CHROMA_TYPE_422;
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break;
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case IMGFMT_VDPAU:
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break;
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default:
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return false;
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}
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if (out_chroma_type)
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*out_chroma_type = chroma;
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if (out_pixel_format)
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*out_pixel_format = ycbcr;
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return true;
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}
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bool mp_vdpau_get_rgb_format(int imgfmt, VdpRGBAFormat *out_rgba_format)
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{
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VdpRGBAFormat format = (VdpRGBAFormat)-1;
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switch (imgfmt) {
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case IMGFMT_BGR32:
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format = VDP_RGBA_FORMAT_B8G8R8A8; break;
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default:
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return false;
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}
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if (out_rgba_format)
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*out_rgba_format = format;
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return true;
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}
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// Use mp_vdpau_get_video_surface, and upload mpi to it. Return NULL on failure.
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// If the image is already a vdpau video surface, just return a reference.
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struct mp_image *mp_vdpau_upload_video_surface(struct mp_vdpau_ctx *ctx,
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struct mp_image *mpi)
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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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if (mpi->imgfmt == IMGFMT_VDPAU || mpi->imgfmt == IMGFMT_VDPAU_OUTPUT)
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return mp_image_new_ref(mpi);
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VdpChromaType chroma = (VdpChromaType)-1;
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VdpYCbCrFormat ycbcr = (VdpYCbCrFormat)-1;
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VdpRGBAFormat rgbafmt = (VdpRGBAFormat)-1;
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bool rgb = !mp_vdpau_get_format(mpi->imgfmt, &chroma, &ycbcr);
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if (rgb && !mp_vdpau_get_rgb_format(mpi->imgfmt, &rgbafmt))
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return NULL;
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struct mp_image *hwmpi =
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mp_vdpau_get_surface(ctx, chroma, rgbafmt, rgb, mpi->w, mpi->h);
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if (!hwmpi)
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return NULL;
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struct mp_image *src = mpi;
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if (mpi->stride[0] < 0)
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src = mp_image_new_copy(mpi); // unflips it when copying
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if (hwmpi->imgfmt == IMGFMT_VDPAU) {
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VdpVideoSurface surface = (intptr_t)hwmpi->planes[3];
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const void *destdata[3] = {src->planes[0], src->planes[2], src->planes[1]};
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if (src->imgfmt == IMGFMT_NV12)
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destdata[1] = destdata[2];
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vdp_st = vdp->video_surface_put_bits_y_cb_cr(surface,
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ycbcr, destdata, src->stride);
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} else {
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VdpOutputSurface rgb_surface = (intptr_t)hwmpi->planes[3];
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vdp_st = vdp->output_surface_put_bits_native(rgb_surface,
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&(const void *){src->planes[0]},
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&(uint32_t){src->stride[0]},
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NULL);
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}
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CHECK_VDP_WARNING(ctx, "Error when uploading surface");
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if (src != mpi)
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talloc_free(src);
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mp_image_copy_attributes(hwmpi, mpi);
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return hwmpi;
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}
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bool mp_vdpau_guess_if_emulated(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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char const* info = NULL;
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vdp_st = vdp->get_information_string(&info);
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CHECK_VDP_WARNING(ctx, "Error when calling vdp_get_information_string");
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return vdp_st == VDP_STATUS_OK && info && strstr(info, "VAAPI");
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}
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