mirror of
https://github.com/mpv-player/mpv
synced 2024-12-25 00:02:13 +00:00
ca67928d7a
mp_sws_set_from_cmdline() has the only purpose to respect the --sws- command line options. Instead of forcing callers to get the option struct containing these, let callers pass mpv_global, and get it from the option core code directly. This avoids minor annoyances later on.
442 lines
12 KiB
C
442 lines
12 KiB
C
/*
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* Original author: Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
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*
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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 <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <libswscale/swscale.h>
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#include "config.h"
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#include "vo.h"
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#include "video/csputils.h"
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#include "video/mp_image.h"
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <errno.h>
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#include "x11_common.h"
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include <X11/extensions/XShm.h>
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#include "sub/osd.h"
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#include "sub/draw_bmp.h"
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#include "video/sws_utils.h"
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#include "video/fmt-conversion.h"
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#include "common/msg.h"
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#include "input/input.h"
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#include "options/options.h"
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#include "osdep/timer.h"
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struct priv {
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struct vo *vo;
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struct mp_image *original_image;
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XImage *myximage[2];
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int depth;
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GC gc;
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uint32_t image_width;
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uint32_t image_height;
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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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XVisualInfo vinfo;
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int current_buf;
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bool reset_view;
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int Shmem_Flag;
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XShmSegmentInfo Shminfo[2];
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int Shm_Warned_Slow;
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};
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static bool resize(struct vo *vo);
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static bool getMyXImage(struct priv *p, int foo)
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{
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struct vo *vo = p->vo;
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if (vo->x11->display_is_local && XShmQueryExtension(vo->x11->display)) {
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p->Shmem_Flag = 1;
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vo->x11->ShmCompletionEvent = XShmGetEventBase(vo->x11->display)
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+ ShmCompletion;
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} else {
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p->Shmem_Flag = 0;
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MP_WARN(vo, "Shared memory not supported\nReverting to normal Xlib\n");
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}
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if (p->Shmem_Flag) {
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p->myximage[foo] =
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XShmCreateImage(vo->x11->display, p->vinfo.visual, p->depth,
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ZPixmap, NULL, &p->Shminfo[foo], p->image_width,
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p->image_height);
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if (p->myximage[foo] == NULL) {
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MP_WARN(vo, "Shared memory error,disabling ( Ximage error )\n");
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goto shmemerror;
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}
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p->Shminfo[foo].shmid = shmget(IPC_PRIVATE,
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p->myximage[foo]->bytes_per_line *
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p->myximage[foo]->height,
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IPC_CREAT | 0777);
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if (p->Shminfo[foo].shmid < 0) {
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XDestroyImage(p->myximage[foo]);
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MP_WARN(vo, "Shared memory error,disabling ( seg id error )\n");
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goto shmemerror;
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}
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p->Shminfo[foo].shmaddr = (char *) shmat(p->Shminfo[foo].shmid, 0, 0);
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if (p->Shminfo[foo].shmaddr == ((char *) -1)) {
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XDestroyImage(p->myximage[foo]);
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MP_WARN(vo, "Shared memory error,disabling ( address error )\n");
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goto shmemerror;
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}
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p->myximage[foo]->data = p->Shminfo[foo].shmaddr;
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p->Shminfo[foo].readOnly = False;
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XShmAttach(vo->x11->display, &p->Shminfo[foo]);
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XSync(vo->x11->display, False);
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shmctl(p->Shminfo[foo].shmid, IPC_RMID, 0);
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} else {
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shmemerror:
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p->Shmem_Flag = 0;
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MP_VERBOSE(vo, "Not using SHM.\n");
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p->myximage[foo] =
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XCreateImage(vo->x11->display, p->vinfo.visual, p->depth, ZPixmap,
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0, NULL, p->image_width, p->image_height, 8, 0);
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if (!p->myximage[foo]) {
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MP_WARN(vo, "could not allocate image");
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return false;
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}
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p->myximage[foo]->data =
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calloc(1, p->myximage[foo]->bytes_per_line * p->image_height + 32);
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}
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return true;
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}
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static void freeMyXImage(struct priv *p, int foo)
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{
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struct vo *vo = p->vo;
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if (p->Shmem_Flag) {
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XShmDetach(vo->x11->display, &p->Shminfo[foo]);
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XDestroyImage(p->myximage[foo]);
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shmdt(p->Shminfo[foo].shmaddr);
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} else {
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if (p->myximage[foo])
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XDestroyImage(p->myximage[foo]);
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}
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p->myximage[foo] = NULL;
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}
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const struct fmt_entry {
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uint32_t mpfmt;
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int depth;
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int byte_order;
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unsigned red_mask;
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unsigned green_mask;
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unsigned blue_mask;
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} mp_to_x_fmt[] = {
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{IMGFMT_0RGB, 32, MSBFirst, 0x00FF0000, 0x0000FF00, 0x000000FF},
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{IMGFMT_0RGB, 32, LSBFirst, 0x0000FF00, 0x00FF0000, 0xFF000000},
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{IMGFMT_0BGR, 32, MSBFirst, 0x000000FF, 0x0000FF00, 0x00FF0000},
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{IMGFMT_0BGR, 32, LSBFirst, 0xFF000000, 0x00FF0000, 0x0000FF00},
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{IMGFMT_RGB0, 32, MSBFirst, 0xFF000000, 0x00FF0000, 0x0000FF00},
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{IMGFMT_RGB0, 32, LSBFirst, 0x000000FF, 0x0000FF00, 0x00FF0000},
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{IMGFMT_BGR0, 32, MSBFirst, 0x0000FF00, 0x00FF0000, 0xFF000000},
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{IMGFMT_BGR0, 32, LSBFirst, 0x00FF0000, 0x0000FF00, 0x000000FF},
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{IMGFMT_RGB565, 16, LSBFirst, 0x0000F800, 0x000007E0, 0x0000001F},
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{0}
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};
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static int reconfig(struct vo *vo, struct mp_image_params *fmt)
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{
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struct priv *p = vo->priv;
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mp_image_unrefp(&p->original_image);
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p->sws->src = *fmt;
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vo_x11_config_vo_window(vo);
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if (!resize(vo))
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return -1;
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return 0;
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}
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static bool resize(struct vo *vo)
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{
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struct priv *p = vo->priv;
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for (int i = 0; i < 2; i++)
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freeMyXImage(p, i);
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vo_get_src_dst_rects(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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// p->osd contains the parameters assuming OSD rendering in window
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// coordinates, but OSD can only be rendered in the intersection
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// between window and video rectangle (i.e. not into panscan borders).
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p->osd.w = p->dst_w;
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p->osd.h = p->dst_h;
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p->osd.mt = MPMIN(0, p->osd.mt);
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p->osd.mb = MPMIN(0, p->osd.mb);
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p->osd.mr = MPMIN(0, p->osd.mr);
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p->osd.ml = MPMIN(0, p->osd.ml);
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mp_input_set_mouse_transform(vo->input_ctx, &p->dst, NULL);
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p->image_width = (p->dst_w + 7) & (~7);
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p->image_height = p->dst_h;
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for (int i = 0; i < 2; i++) {
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if (!getMyXImage(p, i))
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return -1;
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}
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const struct fmt_entry *fmte = mp_to_x_fmt;
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while (fmte->mpfmt) {
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if (fmte->depth == p->myximage[0]->bits_per_pixel &&
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fmte->byte_order == p->myximage[0]->byte_order &&
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fmte->red_mask == p->myximage[0]->red_mask &&
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fmte->green_mask == p->myximage[0]->green_mask &&
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fmte->blue_mask == p->myximage[0]->blue_mask)
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break;
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fmte++;
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}
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if (!fmte->mpfmt) {
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MP_ERR(vo, "X server image format not supported, use another VO.\n");
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return -1;
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}
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mp_sws_set_from_cmdline(p->sws, vo->global);
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p->sws->dst = (struct mp_image_params) {
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.imgfmt = fmte->mpfmt,
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.w = p->dst_w,
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.h = p->dst_h,
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.p_w = 1,
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.p_h = 1,
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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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p->reset_view = true;
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vo->want_redraw = true;
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return true;
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}
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static void Display_Image(struct priv *p, XImage *myximage)
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{
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struct vo *vo = p->vo;
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XImage *x_image = p->myximage[p->current_buf];
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if (p->reset_view) {
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XFillRectangle(vo->x11->display, vo->x11->window, p->gc, 0, 0, vo->dwidth, vo->dheight);
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p->reset_view = false;
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}
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if (p->Shmem_Flag) {
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XShmPutImage(vo->x11->display, vo->x11->window, p->gc, x_image,
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0, 0, p->dst.x0, p->dst.y0, p->dst_w, p->dst_h,
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True);
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vo->x11->ShmCompletionWaitCount++;
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} else {
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XPutImage(vo->x11->display, vo->x11->window, p->gc, x_image,
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0, 0, p->dst.x0, p->dst.y0, p->dst_w, p->dst_h);
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}
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}
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static struct mp_image get_x_buffer(struct priv *p, int buf_index)
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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.planes[0] = p->myximage[buf_index]->data;
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img.stride[0] =
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p->image_width * ((p->myximage[buf_index]->bits_per_pixel + 7) / 8);
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return img;
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}
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static void wait_for_completion(struct vo *vo, int max_outstanding)
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{
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struct priv *ctx = vo->priv;
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struct vo_x11_state *x11 = vo->x11;
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if (ctx->Shmem_Flag) {
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while (x11->ShmCompletionWaitCount > max_outstanding) {
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if (!ctx->Shm_Warned_Slow) {
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MP_WARN(vo, "can't keep up! Waiting"
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" for XShm completion events...\n");
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ctx->Shm_Warned_Slow = 1;
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}
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mp_sleep_us(1000);
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vo_x11_check_events(vo);
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}
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}
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}
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static void flip_page(struct vo *vo)
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{
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struct priv *p = vo->priv;
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Display_Image(p, p->myximage[p->current_buf]);
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p->current_buf = (p->current_buf + 1) % 2;
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}
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// Note: REDRAW_FRAME can call this with NULL.
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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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wait_for_completion(vo, 1);
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struct mp_image img = get_x_buffer(p, p->current_buf);
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if (mpi) {
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struct mp_image src = *mpi;
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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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osd_draw_on_image(vo->osd, p->osd, mpi ? mpi->pts : 0, 0, &img);
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if (mpi != p->original_image) {
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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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}
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static int query_format(struct vo *vo, int format)
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{
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if (sws_isSupportedInput(imgfmt2pixfmt(format)))
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return 1;
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return 0;
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}
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static void uninit(struct vo *vo)
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{
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struct priv *p = vo->priv;
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if (p->myximage[0])
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freeMyXImage(p, 0);
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if (p->myximage[1])
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freeMyXImage(p, 1);
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if (p->gc)
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XFreeGC(vo->x11->display, p->gc);
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talloc_free(p->original_image);
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vo_x11_uninit(vo);
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}
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static int preinit(struct vo *vo)
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{
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struct priv *p = vo->priv;
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p->vo = vo;
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p->sws = mp_sws_alloc(vo);
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if (!vo_x11_init(vo))
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goto error;
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struct vo_x11_state *x11 = vo->x11;
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XWindowAttributes attribs;
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XGetWindowAttributes(x11->display, x11->rootwin, &attribs);
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p->depth = attribs.depth;
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if (!XMatchVisualInfo(x11->display, x11->screen, p->depth,
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TrueColor, &p->vinfo))
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goto error;
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MP_VERBOSE(vo, "selected visual: %d\n", (int)p->vinfo.visualid);
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if (!vo_x11_create_vo_window(vo, &p->vinfo, "x11"))
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goto error;
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p->gc = XCreateGC(x11->display, x11->window, 0, NULL);
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MP_WARN(vo, "Warning: this legacy VO has bad performance. Consider fixing "
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"your graphics drivers, or not forcing the x11 VO.\n");
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return 0;
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error:
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uninit(vo);
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return -1;
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}
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static int control(struct vo *vo, uint32_t request, void *data)
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{
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struct priv *p = vo->priv;
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switch (request) {
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case VOCTRL_SET_PANSCAN:
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if (vo->config_ok)
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resize(vo);
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return VO_TRUE;
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case VOCTRL_REDRAW_FRAME:
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draw_image(vo, p->original_image);
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return true;
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}
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int events = 0;
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int r = vo_x11_control(vo, &events, request, data);
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if (vo->config_ok && (events & (VO_EVENT_EXPOSE | VO_EVENT_RESIZE)))
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resize(vo);
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vo_event(vo, events);
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return r;
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}
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const struct vo_driver video_out_x11 = {
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.description = "X11 (slow, old crap)",
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.name = "x11",
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.priv_size = sizeof(struct priv),
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.preinit = preinit,
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.query_format = query_format,
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.reconfig = reconfig,
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.control = control,
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.draw_image = draw_image,
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.flip_page = flip_page,
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.wakeup = vo_x11_wakeup,
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.wait_events = vo_x11_wait_events,
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.uninit = uninit,
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};
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