mpv/video/out/vo_x11.c

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/*
* Original author: Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* mpv is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <libswscale/swscale.h>
#include "config.h"
#include "vo.h"
#include "video/csputils.h"
#include "video/mp_image.h"
#include "video/filter/vf.h"
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <errno.h>
#include "x11_common.h"
#if HAVE_SHM
#include <sys/ipc.h>
#include <sys/shm.h>
#include <X11/extensions/XShm.h>
#endif
#include "sub/osd.h"
#include "sub/draw_bmp.h"
#include "video/sws_utils.h"
#include "video/fmt-conversion.h"
#include "common/msg.h"
#include "input/input.h"
#include "options/options.h"
#include "osdep/timer.h"
struct priv {
struct vo *vo;
struct mp_image *original_image;
/* local data */
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unsigned char *ImageData[2];
//! original unaligned pointer for free
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unsigned char *ImageDataOrig[2];
/* X11 related variables */
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XImage *myximage[2];
int depth, bpp;
XWindowAttributes attribs;
uint32_t image_width;
uint32_t image_height;
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struct mp_image_params in_format;
struct mp_rect src;
struct mp_rect dst;
int src_w, src_h;
int dst_w, dst_h;
struct mp_osd_res osd;
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struct mp_sws_context *sws;
XVisualInfo vinfo;
int ximage_depth;
int firstTime;
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int current_buf;
int num_buffers;
int Shmem_Flag;
#if HAVE_SHM
int Shm_Warned_Slow;
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XShmSegmentInfo Shminfo[2];
#endif
};
static bool resize(struct vo *vo);
/* Scan the available visuals on this Display/Screen. Try to find
* the 'best' available TrueColor visual that has a decent color
* depth (at least 15bit). If there are multiple visuals with depth
* >= 15bit, we prefer visuals with a smaller color depth. */
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static int find_depth_from_visuals(struct vo *vo, Visual ** visual_return)
{
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Display *dpy = vo->x11->display;
int screen = vo->x11->screen;
XVisualInfo visual_tmpl;
XVisualInfo *visuals;
int nvisuals, i;
int bestvisual = -1;
int bestvisual_depth = -1;
visual_tmpl.screen = screen;
visual_tmpl.class = TrueColor;
visuals = XGetVisualInfo(dpy,
VisualScreenMask | VisualClassMask,
&visual_tmpl, &nvisuals);
if (visuals != NULL)
{
for (i = 0; i < nvisuals; i++)
{
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MP_VERBOSE(vo,
"truecolor visual %#lx, depth %d, R:%lX G:%lX B:%lX\n",
visuals[i].visualid, visuals[i].depth,
visuals[i].red_mask, visuals[i].green_mask,
visuals[i].blue_mask);
/*
* Save the visual index and its depth, if this is the first
* truecolor visul, or a visual that is 'preferred' over the
* previous 'best' visual.
*/
if (bestvisual_depth == -1
|| (visuals[i].depth >= 15
&& (visuals[i].depth < bestvisual_depth
|| bestvisual_depth < 15)))
{
bestvisual = i;
bestvisual_depth = visuals[i].depth;
}
}
if (bestvisual != -1 && visual_return != NULL)
*visual_return = visuals[bestvisual].visual;
XFree(visuals);
}
return bestvisual_depth;
}
static bool getMyXImage(struct priv *p, int foo)
{
struct vo *vo = p->vo;
#if HAVE_SHM && HAVE_XEXT
if (vo->x11->display_is_local && XShmQueryExtension(vo->x11->display)) {
p->Shmem_Flag = 1;
vo->x11->ShmCompletionEvent = XShmGetEventBase(vo->x11->display)
+ ShmCompletion;
} else {
p->Shmem_Flag = 0;
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MP_WARN(vo, "Shared memory not supported\nReverting to normal Xlib\n");
}
if (p->Shmem_Flag) {
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p->myximage[foo] =
XShmCreateImage(vo->x11->display, p->vinfo.visual, p->depth,
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ZPixmap, NULL, &p->Shminfo[foo], p->image_width,
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");
goto shmemerror;
}
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p->Shminfo[foo].shmid = shmget(IPC_PRIVATE,
p->myximage[foo]->bytes_per_line *
p->myximage[foo]->height,
IPC_CREAT | 0777);
if (p->Shminfo[foo].shmid < 0) {
XDestroyImage(p->myximage[foo]);
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MP_WARN(vo, "Shared memory error,disabling ( seg id error )\n");
goto shmemerror;
}
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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)) {
XDestroyImage(p->myximage[foo]);
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MP_WARN(vo, "Shared memory error,disabling ( address error )\n");
goto shmemerror;
}
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p->myximage[foo]->data = p->Shminfo[foo].shmaddr;
p->ImageData[foo] = (unsigned char *) p->myximage[foo]->data;
p->Shminfo[foo].readOnly = False;
XShmAttach(vo->x11->display, &p->Shminfo[foo]);
XSync(vo->x11->display, False);
shmctl(p->Shminfo[foo].shmid, IPC_RMID, 0);
if (!p->firstTime) {
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MP_VERBOSE(vo, "Sharing memory.\n");
p->firstTime = 1;
}
} else {
shmemerror:
p->Shmem_Flag = 0;
#endif
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p->myximage[foo] =
XCreateImage(vo->x11->display, p->vinfo.visual, p->depth, ZPixmap,
0, NULL, p->image_width, p->image_height, 8, 0);
if (!p->myximage[foo]) {
MP_WARN(vo, "could not allocate image");
return false;
}
size_t sz = p->myximage[foo]->bytes_per_line * p->image_height + 32;
p->ImageDataOrig[foo] = calloc(1, sz);
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p->myximage[foo]->data = p->ImageDataOrig[foo] + 16
- ((long)p->ImageDataOrig & 15);
p->ImageData[foo] = p->myximage[foo]->data;
#if HAVE_SHM && HAVE_XEXT
}
#endif
return true;
}
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static void freeMyXImage(struct priv *p, int foo)
{
#if HAVE_SHM && HAVE_XEXT
struct vo *vo = p->vo;
if (p->Shmem_Flag) {
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XShmDetach(vo->x11->display, &p->Shminfo[foo]);
XDestroyImage(p->myximage[foo]);
shmdt(p->Shminfo[foo].shmaddr);
} else
#endif
{
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if (p->myximage[foo]) {
p->myximage[foo]->data = p->ImageDataOrig[foo];
XDestroyImage(p->myximage[foo]);
p->ImageDataOrig[foo] = NULL;
}
}
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p->myximage[foo] = NULL;
p->ImageData[foo] = NULL;
}
Remove compile time/runtime CPU detection, and drop some platforms mplayer had three ways of enabling CPU specific assembler routines: a) Enable them at compile time; crash if the CPU can't handle it. b) Enable them at compile time, but let the configure script detect your CPU. Your binary will only crash if you try to run it on a different system that has less features than yours. This was the default, I think. c) Runtime detection. The implementation of b) and c) suck. a) is not really feasible (it sucks for users). Remove all code related to this, and use libav's CPU detection instead. Now the configure script will always enable CPU specific features, and disable them at runtime if libav reports them not as available. One implication is that now the compiler is always expected to handle SSE (etc.) inline assembly at runtime, unless it's explicitly disabled. Only checks for x86 CPU specific features are kept, the rest is either unused or barely used. Get rid of all the dump -mpcu, -march etc. flags. Trust the compiler to select decent settings. Get rid of support for the following operating systems: - BSD/OS (some ancient BSD fork) - QNX (don't care) - BeOS (dead, Haiku support is still welcome) - AIX (don't care) - HP-UX (don't care) - OS/2 (dead, actual support has been removed a while ago) Remove the configure code for detecting the endianness. Instead, use the standard header <endian.h>, which can be used if _GNU_SOURCE or _BSD_SOURCE is defined. (Maybe these changes should have been in a separate commit.) Since this is a quite violent code removal orgy, and I'm testing only on x86 32 bit Linux, expect regressions.
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#if BYTE_ORDER == BIG_ENDIAN
#define BO_NATIVE MSBFirst
#define BO_NONNATIVE LSBFirst
#else
#define BO_NATIVE LSBFirst
#define BO_NONNATIVE MSBFirst
#endif
const struct fmt2Xfmtentry_s {
uint32_t mpfmt;
int byte_order;
unsigned red_mask;
unsigned green_mask;
unsigned blue_mask;
} fmt2Xfmt[] = {
{IMGFMT_BGR8, BO_NATIVE, 0x00000007, 0x00000038, 0x000000C0},
{IMGFMT_BGR8, BO_NONNATIVE, 0x00000007, 0x00000038, 0x000000C0},
{IMGFMT_RGB8, BO_NATIVE, 0x000000E0, 0x0000001C, 0x00000003},
{IMGFMT_RGB8, BO_NONNATIVE, 0x000000E0, 0x0000001C, 0x00000003},
{IMGFMT_BGR555, BO_NATIVE, 0x0000001F, 0x000003E0, 0x00007C00},
{IMGFMT_BGR555, BO_NATIVE, 0x00007C00, 0x000003E0, 0x0000001F},
{IMGFMT_BGR565, BO_NATIVE, 0x0000001F, 0x000007E0, 0x0000F800},
{IMGFMT_RGB565, BO_NATIVE, 0x0000F800, 0x000007E0, 0x0000001F},
{IMGFMT_RGB24, MSBFirst, 0x00FF0000, 0x0000FF00, 0x000000FF},
{IMGFMT_RGB24, LSBFirst, 0x000000FF, 0x0000FF00, 0x00FF0000},
{IMGFMT_BGR24, MSBFirst, 0x000000FF, 0x0000FF00, 0x00FF0000},
{IMGFMT_BGR24, LSBFirst, 0x00FF0000, 0x0000FF00, 0x000000FF},
{IMGFMT_RGB32, BO_NATIVE, 0x000000FF, 0x0000FF00, 0x00FF0000},
{IMGFMT_RGB32, BO_NONNATIVE, 0xFF000000, 0x00FF0000, 0x0000FF00},
{IMGFMT_BGR32, BO_NATIVE, 0x00FF0000, 0x0000FF00, 0x000000FF},
{IMGFMT_BGR32, BO_NONNATIVE, 0x0000FF00, 0x00FF0000, 0xFF000000},
{IMGFMT_ARGB, MSBFirst, 0x00FF0000, 0x0000FF00, 0x000000FF},
{IMGFMT_ARGB, LSBFirst, 0x0000FF00, 0x00FF0000, 0xFF000000},
{IMGFMT_ABGR, MSBFirst, 0x000000FF, 0x0000FF00, 0x00FF0000},
{IMGFMT_ABGR, LSBFirst, 0xFF000000, 0x00FF0000, 0x0000FF00},
{IMGFMT_RGBA, MSBFirst, 0xFF000000, 0x00FF0000, 0x0000FF00},
{IMGFMT_RGBA, LSBFirst, 0x000000FF, 0x0000FF00, 0x00FF0000},
{IMGFMT_BGRA, MSBFirst, 0x0000FF00, 0x00FF0000, 0xFF000000},
{IMGFMT_BGRA, LSBFirst, 0x00FF0000, 0x0000FF00, 0x000000FF},
{0}
};
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static int reconfig(struct vo *vo, struct mp_image_params *fmt, int flags)
{
struct priv *p = vo->priv;
mp_image_unrefp(&p->original_image);
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p->in_format = *fmt;
XGetWindowAttributes(vo->x11->display, vo->x11->rootwin, &p->attribs);
p->depth = p->attribs.depth;
if (p->depth != 15 && p->depth != 16 && p->depth != 24 && p->depth != 32) {
Visual *visual;
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p->depth = find_depth_from_visuals(vo, &visual);
}
if (!XMatchVisualInfo(vo->x11->display, vo->x11->screen, p->depth,
TrueColor, &p->vinfo))
return -1;
vo_x11_config_vo_window(vo, &p->vinfo, flags, "x11");
if (!resize(vo))
return -1;
return 0;
}
static bool resize(struct vo *vo)
{
struct priv *p = vo->priv;
for (int i = 0; i < p->num_buffers; i++)
freeMyXImage(p, i);
vo_get_src_dst_rects(vo, &p->src, &p->dst, &p->osd);
p->src_w = p->src.x1 - p->src.x0;
p->src_h = p->src.y1 - p->src.y0;
p->dst_w = p->dst.x1 - p->dst.x0;
p->dst_h = p->dst.y1 - p->dst.y0;
// p->osd contains the parameters assuming OSD rendering in window
// coordinates, but OSD can only be rendered in the intersection
// between window and video rectangle (i.e. not into panscan borders).
p->osd.w = p->dst_w;
p->osd.h = p->dst_h;
p->osd.mt = MPMIN(0, p->osd.mt);
p->osd.mb = MPMIN(0, p->osd.mb);
p->osd.mr = MPMIN(0, p->osd.mr);
p->osd.ml = MPMIN(0, p->osd.ml);
mp_input_set_mouse_transform(vo->input_ctx, &p->dst, NULL);
p->image_width = (p->dst_w + 7) & (~7);
p->image_height = p->dst_h;
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p->num_buffers = 2;
for (int i = 0; i < p->num_buffers; i++) {
if (!getMyXImage(p, i))
return -1;
}
const struct fmt2Xfmtentry_s *fmte = fmt2Xfmt;
while (fmte->mpfmt) {
int depth = IMGFMT_RGB_DEPTH(fmte->mpfmt);
/* bits_per_pixel in X seems to be set to 16 for 15 bit formats
=> force depth to 16 so that only the color masks are used for the format check */
if (depth == 15)
depth = 16;
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if (depth == p->myximage[0]->bits_per_pixel &&
fmte->byte_order == p->myximage[0]->byte_order &&
fmte->red_mask == p->myximage[0]->red_mask &&
fmte->green_mask == p->myximage[0]->green_mask &&
fmte->blue_mask == p->myximage[0]->blue_mask)
break;
fmte++;
}
if (!fmte->mpfmt) {
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MP_ERR(vo, "X server image format not supported,"
" please contact the developers\n");
return -1;
}
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p->bpp = p->myximage[0]->bits_per_pixel;
mp_sws_set_from_cmdline(p->sws, vo->opts->sws_opts);
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p->sws->src = p->in_format;
p->sws->dst = (struct mp_image_params) {
.imgfmt = fmte->mpfmt,
.w = p->dst_w,
.h = p->dst_h,
.d_w = p->dst_w,
.d_h = p->dst_h,
};
mp_image_params_guess_csp(&p->sws->dst);
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if (mp_sws_reinit(p->sws) < 0)
return false;
vo_x11_clear_background(vo, &p->dst);
vo->want_redraw = true;
return true;
}
static void Display_Image(struct priv *p, XImage *myximage)
{
struct vo *vo = p->vo;
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XImage *x_image = p->myximage[p->current_buf];
#if HAVE_SHM && HAVE_XEXT
if (p->Shmem_Flag) {
XShmPutImage(vo->x11->display, vo->x11->window, vo->x11->vo_gc, x_image,
0, 0, p->dst.x0, p->dst.y0, p->dst_w, p->dst_h,
True);
vo->x11->ShmCompletionWaitCount++;
} else
#endif
{
XPutImage(vo->x11->display, vo->x11->window, vo->x11->vo_gc, x_image,
0, 0, p->dst.x0, p->dst.y0, p->dst_w, p->dst_h);
}
}
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static struct mp_image get_x_buffer(struct priv *p, int buf_index)
{
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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->ImageData[buf_index];
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img.stride[0] = p->image_width * ((p->bpp + 7) / 8);
return img;
}
static void wait_for_completion(struct vo *vo, int max_outstanding)
{
#if HAVE_SHM && HAVE_XEXT
struct priv *ctx = vo->priv;
struct vo_x11_state *x11 = vo->x11;
if (ctx->Shmem_Flag) {
while (x11->ShmCompletionWaitCount > max_outstanding) {
if (!ctx->Shm_Warned_Slow) {
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MP_WARN(vo, "can't keep up! Waiting"
" for XShm completion events...\n");
ctx->Shm_Warned_Slow = 1;
}
mp_sleep_us(1000);
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vo_x11_check_events(vo);
}
}
#endif
}
static void flip_page(struct vo *vo)
{
struct priv *p = vo->priv;
Display_Image(p, p->myximage[p->current_buf]);
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p->current_buf = (p->current_buf + 1) % p->num_buffers;
if (!p->Shmem_Flag)
XSync(vo->x11->display, False);
}
// Note: REDRAW_FRAME can call this with NULL.
static void draw_image(struct vo *vo, mp_image_t *mpi)
{
struct priv *p = vo->priv;
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wait_for_completion(vo, p->num_buffers - 1);
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struct mp_image img = get_x_buffer(p, p->current_buf);
if (mpi) {
struct mp_image src = *mpi;
struct mp_rect src_rc = p->src;
src_rc.x0 = MP_ALIGN_DOWN(src_rc.x0, src.fmt.align_x);
src_rc.y0 = MP_ALIGN_DOWN(src_rc.y0, src.fmt.align_y);
mp_image_crop_rc(&src, src_rc);
mp_sws_scale(p->sws, &img, &src);
} else {
mp_image_clear(&img, 0, 0, img.w, img.h);
}
osd_draw_on_image(vo->osd, p->osd, mpi ? mpi->pts : 0, 0, &img);
if (mpi != p->original_image) {
talloc_free(p->original_image);
p->original_image = mpi;
}
}
static int query_format(struct vo *vo, int format)
{
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MP_DBG(vo, "query_format was called: %x (%s)\n", format,
vo_format_name(format));
if (IMGFMT_IS_RGB(format)) {
for (int n = 0; fmt2Xfmt[n].mpfmt; n++) {
if (fmt2Xfmt[n].mpfmt == format)
return 1;
}
}
if (sws_isSupportedInput(imgfmt2pixfmt(format)))
return 1;
return 0;
}
static void find_x11_depth(struct vo *vo)
{
struct vo_x11_state *x11 = vo->x11;
struct priv *p = vo->priv;
XImage *mXImage = NULL;
int depth, bpp, ximage_depth;
unsigned int mask;
XWindowAttributes attribs;
// get color depth (from root window, or the best visual):
XGetWindowAttributes(x11->display, x11->rootwin, &attribs);
depth = attribs.depth;
if (depth != 15 && depth != 16 && depth != 24 && depth != 32)
{
Visual *visual;
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depth = find_depth_from_visuals(vo, &visual);
if (depth != -1)
mXImage = XCreateImage(x11->display, visual, depth, ZPixmap,
0, NULL, 1, 1, 8, 1);
} else
mXImage =
XGetImage(x11->display, x11->rootwin, 0, 0, 1, 1, AllPlanes, ZPixmap);
ximage_depth = depth; // display depth on screen
// get bits/pixel from XImage structure:
if (mXImage == NULL)
{
mask = 0;
} else
{
/* for the depth==24 case, the XImage structures might use
* 24 or 32 bits of data per pixel. */
bpp = mXImage->bits_per_pixel;
if ((ximage_depth + 7) / 8 != (bpp + 7) / 8)
ximage_depth = bpp; // by A'rpi
mask =
mXImage->red_mask | mXImage->green_mask | mXImage->blue_mask;
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MP_VERBOSE(vo, "color mask: %X (R:%lX G:%lX B:%lX)\n", mask,
mXImage->red_mask, mXImage->green_mask, mXImage->blue_mask);
XDestroyImage(mXImage);
}
if (((ximage_depth + 7) / 8) == 2)
{
if (mask == 0x7FFF)
ximage_depth = 15;
else if (mask == 0xFFFF)
ximage_depth = 16;
}
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MP_VERBOSE(vo, "depth %d and %d bpp.\n", depth, ximage_depth);
p->ximage_depth = ximage_depth;
}
static void uninit(struct vo *vo)
{
struct priv *p = vo->priv;
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if (p->myximage[0])
freeMyXImage(p, 0);
if (p->myximage[1])
freeMyXImage(p, 1);
talloc_free(p->original_image);
vo_x11_uninit(vo);
}
static int preinit(struct vo *vo)
{
struct priv *p = vo->priv;
p->vo = vo;
if (!vo_x11_init(vo))
return -1; // Can't open X11
find_x11_depth(vo);
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p->sws = mp_sws_alloc(vo);
return 0;
}
static int control(struct vo *vo, uint32_t request, void *data)
{
input: handle mouse movement differently Before this commit, mouse movement events emitted a special command ("set_mouse_pos"), which was specially handled in command.c. This was once special-cased to the dvdnav and menu code, and did nothing after libmenu and dvdnav were removed. Change it so that mouse movement triggers a pseudo-key ("MOUSE_MOVE"), which then can be bound to an arbitrary command. The mouse position is now managed in input.c. A command which actually needs the mouse position can use either mp_input_get_mouse_pos() or mp_get_osd_mouse_pos() to query it. The former returns raw window-space coordinates, while the latter returns coordinates transformed to OSD- space. (Both are the same for most VOs, except vo_xv and vo_x11, which can't render OSD in window-space. These require extra code for mapping mouse position.) As of this commit, there is still nothing that uses mouse movement, so MOUSE_MOVE is mapped to "ignore" to silence warnings when moving the mouse (much like MOUSE_BTN0). Extend the concept of input sections. Allow multiple sections to be active at once, and organize them as stack. Bindings from the top of the stack are preferred to lower ones. Each section has a mouse input section associated, inside which mouse events are associated with the bindings. If the mouse pointer is outside of a section's mouse area, mouse events will be dispatched to an input section lower on the stack of active sections. This is intended for scripting, which is to be added later. Two scripts could occupy different areas of the screen without conflicting with each other. (If it turns out that this mechanism is useless, we'll just remove it again.)
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struct priv *p = vo->priv;
switch (request) {
case VOCTRL_SET_EQUALIZER:
{
struct voctrl_set_equalizer_args *args = data;
struct vf_seteq eq = {args->name, args->value};
if (mp_sws_set_vf_equalizer(p->sws, &eq) == 0)
break;
return true;
}
case VOCTRL_GET_EQUALIZER:
{
struct voctrl_get_equalizer_args *args = data;
struct vf_seteq eq = {args->name};
if (mp_sws_get_vf_equalizer(p->sws, &eq) == 0)
break;
*(int *)args->valueptr = eq.value;
return true;
}
case VOCTRL_GET_PANSCAN:
return VO_TRUE;
case VOCTRL_SET_PANSCAN:
if (vo->config_ok)
resize(vo);
return VO_TRUE;
case VOCTRL_REDRAW_FRAME:
draw_image(vo, p->original_image);
return true;
}
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int events = 0;
int r = vo_x11_control(vo, &events, request, data);
if (vo->config_ok && (events & (VO_EVENT_EXPOSE | VO_EVENT_RESIZE)))
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resize(vo);
vo_event(vo, events);
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return r;
}
const struct vo_driver video_out_x11 = {
.description = "X11 ( XImage/Shm )",
.name = "x11",
.priv_size = sizeof(struct priv),
.options = (const struct m_option []){{0}},
.preinit = preinit,
.query_format = query_format,
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.reconfig = reconfig,
.control = control,
.draw_image = draw_image,
.flip_page = flip_page,
.uninit = uninit,
};