mirror of
https://github.com/mpv-player/mpv
synced 2024-12-22 23:02:37 +00:00
797277a233
Signed-off-by: wm4 <wm4@nowhere>
699 lines
20 KiB
C
699 lines
20 KiB
C
/*
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* This file is part of mpv video player.
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* Copyright © 2013 Alexander Preisinger <alexander.preisinger@gmail.com>
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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 <stdio.h>
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#include <stdbool.h>
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#include <assert.h>
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#include <libavutil/common.h>
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#include "config.h"
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#include "vo.h"
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#include "video/mp_image.h"
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#include "video/sws_utils.h"
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#include "sub/osd.h"
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#include "sub/img_convert.h"
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#include "common/msg.h"
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#include "input/input.h"
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#include "osdep/endian.h"
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#include "osdep/timer.h"
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#include "wayland_common.h"
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#include "video/out/wayland/buffer.h"
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static void draw_image(struct vo *vo, mp_image_t *mpi);
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static void draw_osd(struct vo *vo);
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static const struct wl_buffer_listener buffer_listener;
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// TODO: pay attention to the reported subpixel order
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static const format_t format_table[] = {
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{WL_SHM_FORMAT_ARGB8888, IMGFMT_BGRA}, // 8b 8g 8r 8a
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{WL_SHM_FORMAT_XRGB8888, IMGFMT_BGR0},
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{WL_SHM_FORMAT_RGB332, IMGFMT_RGB8}, // 3b 3g 2r
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{WL_SHM_FORMAT_BGR233, IMGFMT_BGR8}, // 3r 3g 3b,
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#if BYTE_ORDER == LITTLE_ENDIAN
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{WL_SHM_FORMAT_XRGB4444, IMGFMT_RGB444}, // 4b 4g 4r 4a
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{WL_SHM_FORMAT_XBGR4444, IMGFMT_BGR444}, // 4r 4g 4b 4a
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{WL_SHM_FORMAT_ARGB4444, IMGFMT_RGB444},
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{WL_SHM_FORMAT_ABGR4444, IMGFMT_BGR444},
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{WL_SHM_FORMAT_XRGB1555, IMGFMT_RGB555}, // 5b 5g 5r 1a
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{WL_SHM_FORMAT_XBGR1555, IMGFMT_BGR555}, // 5r 5g 5b 1a
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{WL_SHM_FORMAT_ARGB1555, IMGFMT_RGB555},
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{WL_SHM_FORMAT_ABGR1555, IMGFMT_BGR555},
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{WL_SHM_FORMAT_RGB565, IMGFMT_RGB565}, // 5b 6g 5r
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{WL_SHM_FORMAT_BGR565, IMGFMT_BGR565}, // 5r 6g 5b
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#else
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{WL_SHM_FORMAT_RGBX4444, IMGFMT_BGR444}, // 4a 4b 4g 4r
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{WL_SHM_FORMAT_BGRX4444, IMGFMT_RGB444}, // 4a 4r 4g 4b
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{WL_SHM_FORMAT_RGBA4444, IMGFMT_BGR444},
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{WL_SHM_FORMAT_BGRA4444, IMGFMT_RGB444},
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{WL_SHM_FORMAT_RGBX5551, IMGFMT_BGR555}, // 1a 5g 5b 5r
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{WL_SHM_FORMAT_BGRX5551, IMGFMT_RGB555}, // 1a 5r 5g 5b
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{WL_SHM_FORMAT_RGBA5551, IMGFMT_BGR555},
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{WL_SHM_FORMAT_BGRA5551, IMGFMT_RGB555},
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#endif
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{WL_SHM_FORMAT_RGB888, IMGFMT_BGR24}, // 8b 8g 8r
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{WL_SHM_FORMAT_BGR888, IMGFMT_RGB24}, // 8r 8g 8b
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{WL_SHM_FORMAT_XBGR8888, IMGFMT_RGB0},
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{WL_SHM_FORMAT_RGBX8888, IMGFMT_0BGR},
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{WL_SHM_FORMAT_BGRX8888, IMGFMT_0RGB},
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{WL_SHM_FORMAT_ABGR8888, IMGFMT_RGBA},
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{WL_SHM_FORMAT_RGBA8888, IMGFMT_ABGR},
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{WL_SHM_FORMAT_BGRA8888, IMGFMT_ARGB},
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};
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#define MAX_FORMAT_ENTRIES (sizeof(format_table) / sizeof(format_table[0]))
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#define DEFAULT_FORMAT_ENTRY 1
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#define DEFAULT_ALPHA_FORMAT_ENTRY 0
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struct priv;
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// We only use double buffering but the creation and usage is still open to
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// triple buffering. Triple buffering is now removed, because double buffering
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// is now pixel-perfect.
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struct buffer_pool {
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shm_buffer_t **buffers;
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shm_buffer_t *front_buffer; // just pointers to any of the buffers
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shm_buffer_t *back_buffer;
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uint32_t buffer_no;
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};
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struct supported_format {
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format_t format;
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bool is_alpha;
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struct wl_list link;
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};
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struct priv {
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struct vo *vo;
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struct vo_wayland_state *wl;
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struct wl_list format_list;
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const format_t *video_format; // pointer to element in supported_format list
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struct mp_rect src;
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struct mp_rect dst;
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int src_w, src_h;
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int dst_w, dst_h;
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struct mp_osd_res osd;
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struct mp_sws_context *sws;
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struct mp_image_params in_format;
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struct buffer_pool video_bufpool;
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struct mp_image *original_image;
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int width; // width of the original image
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int height;
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int x, y; // coords for resizing
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struct wl_surface *osd_surfaces[MAX_OSD_PARTS];
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struct wl_subsurface *osd_subsurfaces[MAX_OSD_PARTS];
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shm_buffer_t *osd_buffers[MAX_OSD_PARTS];
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// this id tells us if the subtitle part has changed or not
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int change_id[MAX_OSD_PARTS];
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int64_t recent_flip_time; // last frame event
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// options
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int enable_alpha;
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int use_rgb565;
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};
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static bool is_alpha_format(const format_t *fmt)
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{
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return !!(mp_imgfmt_get_desc(fmt->mp_format).flags & MP_IMGFLAG_ALPHA);
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}
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static const format_t* is_wayland_format_supported(struct priv *p,
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enum wl_shm_format fmt)
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{
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struct supported_format *sf;
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// find the matching format first
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wl_list_for_each(sf, &p->format_list, link) {
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if (sf->format.wl_format == fmt) {
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return &sf->format;
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}
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}
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return NULL;
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}
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// additional buffer functions
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static void buffer_finalise_front(shm_buffer_t *buf)
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{
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SHM_BUFFER_SET_BUSY(buf);
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SHM_BUFFER_CLEAR_DIRTY(buf);
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}
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static void buffer_finalise_back(shm_buffer_t *buf)
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{
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SHM_BUFFER_SET_DIRTY(buf);
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}
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static struct mp_image buffer_get_mp_image(struct priv *p,
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shm_buffer_t *buf)
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{
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struct mp_image img = {0};
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mp_image_set_params(&img, &p->sws->dst);
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img.w = buf->stride / buf->bytes;
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img.h = buf->height;
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img.planes[0] = buf->data;
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img.stride[0] = buf->stride;
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return img;
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}
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// buffer pool functions
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static void buffer_pool_reinit(struct priv *p,
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struct buffer_pool *pool,
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uint32_t buffer_no,
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uint32_t width, uint32_t height,
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format_t fmt,
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struct wl_shm *shm)
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{
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if (!pool->buffers)
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pool->buffers = calloc(buffer_no, sizeof(shm_buffer_t*));
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pool->buffer_no = buffer_no;
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for (uint32_t i = 0; i < buffer_no; ++i) {
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if (pool->buffers[i] == NULL)
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pool->buffers[i] = shm_buffer_create(width, height, fmt,
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shm, &buffer_listener);
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else
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shm_buffer_resize(pool->buffers[i], width, height);
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}
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pool->back_buffer = pool->buffers[0];
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pool->front_buffer = pool->buffers[1];
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}
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static bool buffer_pool_resize(struct buffer_pool *pool,
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int width,
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int height)
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{
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bool ret = true;
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for (uint32_t i = 0; ret && i < pool->buffer_no; ++i)
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shm_buffer_resize(pool->buffers[i], width, height);
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return ret;
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}
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static void buffer_pool_destroy(struct buffer_pool *pool)
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{
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for (uint32_t i = 0; i < pool->buffer_no; ++i)
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shm_buffer_destroy(pool->buffers[i]);
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free(pool->buffers);
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pool->front_buffer = NULL;
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pool->back_buffer = NULL;
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pool->buffers = NULL;
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}
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static void buffer_pool_swap(struct buffer_pool *pool)
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{
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if (SHM_BUFFER_IS_DIRTY(pool->back_buffer)) {
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shm_buffer_t *tmp = pool->back_buffer;
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pool->back_buffer = pool->front_buffer;
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pool->front_buffer = tmp;
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}
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}
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// returns NULL if the back buffer is busy
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static shm_buffer_t * buffer_pool_get_back(struct buffer_pool *pool)
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{
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if (!pool->back_buffer || SHM_BUFFER_IS_BUSY(pool->back_buffer))
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return NULL;
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return pool->back_buffer;
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}
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static shm_buffer_t * buffer_pool_get_front(struct buffer_pool *pool)
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{
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return pool->front_buffer;
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}
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static bool redraw_frame(struct priv *p)
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{
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draw_image(p->vo, NULL);
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return true;
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}
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static bool resize(struct priv *p)
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{
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struct vo_wayland_state *wl = p->wl;
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if (!p->video_bufpool.back_buffer || SHM_BUFFER_IS_BUSY(p->video_bufpool.back_buffer))
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return false; // skip resizing if we can't guarantee pixel perfectness!
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int32_t x = wl->window.sh_x;
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int32_t y = wl->window.sh_y;
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wl->vo->dwidth = wl->window.sh_width;
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wl->vo->dheight = wl->window.sh_height;
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vo_get_src_dst_rects(p->vo, &p->src, &p->dst, &p->osd);
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p->src_w = p->src.x1 - p->src.x0;
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p->src_h = p->src.y1 - p->src.y0;
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p->dst_w = p->dst.x1 - p->dst.x0;
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p->dst_h = p->dst.y1 - p->dst.y0;
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mp_input_set_mouse_transform(p->vo->input_ctx, &p->dst, NULL);
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MP_DBG(wl, "resizing %dx%d -> %dx%d\n", wl->window.width,
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wl->window.height,
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p->dst_w,
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p->dst_h);
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if (x != 0)
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x = wl->window.width - p->dst_w;
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if (y != 0)
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y = wl->window.height - p->dst_h;
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mp_sws_set_from_cmdline(p->sws, p->vo->opts->sws_opts);
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p->sws->src = p->in_format;
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p->sws->dst = (struct mp_image_params) {
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.imgfmt = p->video_format->mp_format,
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.w = p->dst_w,
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.h = p->dst_h,
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.d_w = p->dst_w,
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.d_h = p->dst_h,
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};
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mp_image_params_guess_csp(&p->sws->dst);
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if (mp_sws_reinit(p->sws) < 0)
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return false;
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if (!buffer_pool_resize(&p->video_bufpool, p->dst_w, p->dst_h)) {
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MP_ERR(wl, "failed to resize video buffers\n");
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return false;
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}
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wl->window.width = p->dst_w;
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wl->window.height = p->dst_h;
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// if no alpha enabled format is used then create an opaque region to allow
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// the compositor to optimize the drawing of the window
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if (!p->enable_alpha) {
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struct wl_region *opaque =
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wl_compositor_create_region(wl->display.compositor);
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wl_region_add(opaque, 0, 0, p->dst_w, p->dst_h);
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wl_surface_set_opaque_region(wl->window.video_surface, opaque);
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wl_region_destroy(opaque);
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}
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p->x = x;
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p->y = y;
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p->wl->window.events = 0;
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p->vo->want_redraw = true;
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return true;
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}
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/* wayland listeners */
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static void buffer_handle_release(void *data, struct wl_buffer *buffer)
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{
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shm_buffer_t *buf = data;
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if (SHM_BUFFER_IS_ONESHOT(buf)) {
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shm_buffer_destroy(buf);
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return;
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}
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SHM_BUFFER_CLEAR_BUSY(buf);
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// does nothing and returns 0 if no pending resize flag was set
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shm_buffer_pending_resize(buf);
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}
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static const struct wl_buffer_listener buffer_listener = {
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buffer_handle_release
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};
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static void shm_handle_format(void *data,
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struct wl_shm *wl_shm,
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uint32_t format)
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{
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struct priv *p = data;
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for (uint32_t i = 0; i < MAX_FORMAT_ENTRIES; ++i) {
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if (format_table[i].wl_format == format) {
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MP_INFO(p->wl, "format %s supported by hw\n",
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mp_imgfmt_to_name(format_table[i].mp_format));
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struct supported_format *sf = talloc(p, struct supported_format);
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sf->format = format_table[i];
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sf->is_alpha = is_alpha_format(&sf->format);
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wl_list_insert(&p->format_list, &sf->link);
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}
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}
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}
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static const struct wl_shm_listener shm_listener = {
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shm_handle_format
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};
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/* mpv interface */
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static void draw_image(struct vo *vo, mp_image_t *mpi)
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{
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struct priv *p = vo->priv;
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if (mpi) {
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talloc_free(p->original_image);
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p->original_image = mpi;
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}
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if (!p->wl->frame.pending)
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return;
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shm_buffer_t *buf = buffer_pool_get_back(&p->video_bufpool);
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if (!buf) {
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// TODO: use similar handling of busy buffers as the osd buffers
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// if the need arises
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MP_VERBOSE(p->wl, "can't draw, back buffer is busy\n");
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return;
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}
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struct mp_image img = buffer_get_mp_image(p, buf);
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if (p->original_image) {
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struct mp_image src = *p->original_image;
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struct mp_rect src_rc = p->src;
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src_rc.x0 = MP_ALIGN_DOWN(src_rc.x0, src.fmt.align_x);
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src_rc.y0 = MP_ALIGN_DOWN(src_rc.y0, src.fmt.align_y);
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mp_image_crop_rc(&src, src_rc);
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mp_sws_scale(p->sws, &img, &src);
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} else {
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mp_image_clear(&img, 0, 0, img.w, img.h);
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}
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buffer_finalise_back(buf);
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draw_osd(vo);
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}
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static void draw_osd_cb(void *ctx, struct sub_bitmaps *imgs)
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{
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struct priv *p = ctx;
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int id = imgs->render_index;
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struct wl_surface *s = p->osd_surfaces[id];
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if (imgs->change_id != p->change_id[id]) {
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p->change_id[id] = imgs->change_id;
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struct mp_rect bb;
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if (!mp_sub_bitmaps_bb(imgs, &bb))
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return;
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int width = mp_rect_w(bb);
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int height = mp_rect_h(bb);
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if (!p->osd_buffers[id]) {
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p->osd_buffers[id] = shm_buffer_create(width,
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height,
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format_table[DEFAULT_ALPHA_FORMAT_ENTRY],
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p->wl->display.shm,
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&buffer_listener);
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}
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else if (SHM_BUFFER_IS_BUSY(p->osd_buffers[id])) {
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// freed on release in buffer_listener
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// guarantees pixel perfect resizing of subtitles and osd
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SHM_BUFFER_SET_ONESHOT(p->osd_buffers[id]);
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p->osd_buffers[id] = shm_buffer_create(width,
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height,
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format_table[DEFAULT_ALPHA_FORMAT_ENTRY],
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p->wl->display.shm,
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&buffer_listener);
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}
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else {
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shm_buffer_resize(p->osd_buffers[id], width, height);
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}
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shm_buffer_t *buf = p->osd_buffers[id];
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SHM_BUFFER_SET_BUSY(buf);
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struct mp_image wlimg = buffer_get_mp_image(p, buf);
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for (int n = 0; n < imgs->num_parts; n++) {
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struct sub_bitmap *sub = &imgs->parts[n];
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memcpy_pic(wlimg.planes[0], sub->bitmap, sub->w * 4, sub->h,
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wlimg.stride[0], sub->stride);
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}
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wl_subsurface_set_position(p->osd_subsurfaces[id], 0, 0);
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wl_surface_attach(s, buf->buffer, bb.x0, bb.y0);
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wl_surface_damage(s, 0, 0, width, height);
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wl_surface_commit(s);
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}
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else {
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// p->osd_buffer, guaranteed to exist here
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assert(p->osd_buffers[id]);
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wl_surface_attach(s, p->osd_buffers[id]->buffer, 0, 0);
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wl_surface_commit(s);
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}
|
|
}
|
|
|
|
static const bool osd_formats[SUBBITMAP_COUNT] = {
|
|
[SUBBITMAP_RGBA] = true,
|
|
};
|
|
|
|
static void draw_osd(struct vo *vo)
|
|
{
|
|
struct priv *p = vo->priv;
|
|
|
|
// detach all buffers and attach all needed buffers in osd_draw
|
|
// only the most recent attach & commit is applied once the parent surface
|
|
// is committed
|
|
for (int i = 0; i < MAX_OSD_PARTS; ++i) {
|
|
struct wl_surface *s = p->osd_surfaces[i];
|
|
wl_surface_attach(s, NULL, 0, 0);
|
|
wl_surface_damage(s, 0, 0, p->dst_w, p->dst_h);
|
|
wl_surface_commit(s);
|
|
}
|
|
|
|
double pts = p->original_image ? p->original_image->pts : 0;
|
|
osd_draw(vo->osd, p->osd, pts, 0, osd_formats, draw_osd_cb, p);
|
|
}
|
|
|
|
static void flip_page(struct vo *vo)
|
|
{
|
|
struct priv *p = vo->priv;
|
|
|
|
if (!p->wl->frame.pending)
|
|
return;
|
|
|
|
buffer_pool_swap(&p->video_bufpool);
|
|
|
|
shm_buffer_t *buf = buffer_pool_get_front(&p->video_bufpool);
|
|
wl_surface_attach(p->wl->window.video_surface, buf->buffer, p->x, p->y);
|
|
wl_surface_damage(p->wl->window.video_surface, 0, 0, p->dst_w, p->dst_h);
|
|
wl_surface_commit(p->wl->window.video_surface);
|
|
buffer_finalise_front(buf);
|
|
|
|
p->x = 0;
|
|
p->y = 0;
|
|
p->recent_flip_time = mp_time_us();
|
|
p->wl->frame.pending = false;
|
|
}
|
|
|
|
static int query_format(struct vo *vo, int format)
|
|
{
|
|
struct priv *p = vo->priv;
|
|
struct supported_format *sf;
|
|
wl_list_for_each_reverse(sf, &p->format_list, link) {
|
|
if (sf->format.mp_format == format)
|
|
return 1;
|
|
}
|
|
|
|
if (mp_sws_supported_format(format))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int reconfig(struct vo *vo, struct mp_image_params *fmt, int flags)
|
|
{
|
|
struct priv *p = vo->priv;
|
|
mp_image_unrefp(&p->original_image);
|
|
|
|
p->width = fmt->w;
|
|
p->height = fmt->h;
|
|
p->in_format = *fmt;
|
|
|
|
struct supported_format *sf;
|
|
|
|
// find the matching format first
|
|
wl_list_for_each(sf, &p->format_list, link) {
|
|
if (sf->format.mp_format == fmt->imgfmt &&
|
|
(p->enable_alpha == sf->is_alpha))
|
|
{
|
|
p->video_format = &sf->format;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!p->video_format) {
|
|
// if use default is enable overwrite the auto selected one
|
|
if (p->enable_alpha)
|
|
p->video_format = &format_table[DEFAULT_ALPHA_FORMAT_ENTRY];
|
|
else
|
|
p->video_format = &format_table[DEFAULT_FORMAT_ENTRY];
|
|
}
|
|
|
|
// overrides alpha
|
|
// use rgb565 if performance is your main concern
|
|
if (p->use_rgb565) {
|
|
MP_INFO(p->wl, "using rgb565\n");
|
|
const format_t *entry =
|
|
is_wayland_format_supported(p, WL_SHM_FORMAT_RGB565);
|
|
if (entry)
|
|
p->video_format = entry;
|
|
}
|
|
|
|
buffer_pool_reinit(p, &p->video_bufpool, 2, p->width, p->height,
|
|
*p->video_format, p->wl->display.shm);
|
|
|
|
vo_wayland_config(vo, flags);
|
|
|
|
resize(p);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void uninit(struct vo *vo)
|
|
{
|
|
struct priv *p = vo->priv;
|
|
buffer_pool_destroy(&p->video_bufpool);
|
|
|
|
talloc_free(p->original_image);
|
|
|
|
for (int i = 0; i < MAX_OSD_PARTS; ++i) {
|
|
shm_buffer_destroy(p->osd_buffers[i]);
|
|
wl_subsurface_destroy(p->osd_subsurfaces[i]);
|
|
wl_surface_destroy(p->osd_surfaces[i]);
|
|
}
|
|
|
|
vo_wayland_uninit(vo);
|
|
}
|
|
|
|
static int preinit(struct vo *vo)
|
|
{
|
|
struct priv *p = vo->priv;
|
|
struct vo_wayland_state *wl = NULL;
|
|
|
|
if (!vo_wayland_init(vo))
|
|
return -1;
|
|
|
|
wl = vo->wayland;
|
|
|
|
p->vo = vo;
|
|
p->wl = wl;
|
|
p->sws = mp_sws_alloc(vo);
|
|
|
|
wl_list_init(&p->format_list);
|
|
|
|
wl_shm_add_listener(wl->display.shm, &shm_listener, p);
|
|
wl_display_dispatch(wl->display.display);
|
|
|
|
// Commits on surfaces bound to a subsurface are cached until the parent
|
|
// surface is committed, in this case the video surface.
|
|
// Which means we can call commit anywhere.
|
|
struct wl_region *input =
|
|
wl_compositor_create_region(wl->display.compositor);
|
|
for (int i = 0; i < MAX_OSD_PARTS; ++i) {
|
|
p->osd_surfaces[i] =
|
|
wl_compositor_create_surface(wl->display.compositor);
|
|
wl_surface_attach(p->osd_surfaces[i], NULL, 0, 0);
|
|
wl_surface_set_input_region(p->osd_surfaces[i], input);
|
|
p->osd_subsurfaces[i] =
|
|
wl_subcompositor_get_subsurface(wl->display.subcomp,
|
|
p->osd_surfaces[i],
|
|
wl->window.video_surface); // parent
|
|
wl_surface_commit(p->osd_surfaces[i]);
|
|
wl_subsurface_set_sync(p->osd_subsurfaces[i]);
|
|
}
|
|
wl_region_destroy(input);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int control(struct vo *vo, uint32_t request, void *data)
|
|
{
|
|
struct priv *p = vo->priv;
|
|
switch (request) {
|
|
case VOCTRL_GET_PANSCAN:
|
|
return VO_TRUE;
|
|
case VOCTRL_SET_PANSCAN:
|
|
{
|
|
resize(p);
|
|
return VO_TRUE;
|
|
}
|
|
case VOCTRL_REDRAW_FRAME:
|
|
return redraw_frame(p);
|
|
case VOCTRL_GET_RECENT_FLIP_TIME:
|
|
{
|
|
*(int64_t*) data = p->recent_flip_time;
|
|
return VO_TRUE;
|
|
}
|
|
}
|
|
int events = 0;
|
|
int r = vo_wayland_control(vo, &events, request, data);
|
|
|
|
// NOTE: VO_EVENT_EXPOSE is never returned by the wayland backend
|
|
if (events & VO_EVENT_RESIZE)
|
|
resize(p);
|
|
|
|
vo_event(vo, events);
|
|
|
|
return r;
|
|
}
|
|
|
|
#define OPT_BASE_STRUCT struct priv
|
|
const struct vo_driver video_out_wayland = {
|
|
.description = "Wayland SHM video output",
|
|
.name = "wayland",
|
|
.priv_size = sizeof(struct priv),
|
|
.preinit = preinit,
|
|
.query_format = query_format,
|
|
.reconfig = reconfig,
|
|
.control = control,
|
|
.draw_image = draw_image,
|
|
.flip_page = flip_page,
|
|
.uninit = uninit,
|
|
.options = (const struct m_option[]) {
|
|
OPT_FLAG("alpha", enable_alpha, 0),
|
|
OPT_FLAG("rgb565", use_rgb565, 0),
|
|
{0}
|
|
},
|
|
};
|
|
|