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Diffstat (limited to 'src/video_out/video_out_xshm.c')
-rw-r--r--src/video_out/video_out_xshm.c968
1 files changed, 968 insertions, 0 deletions
diff --git a/src/video_out/video_out_xshm.c b/src/video_out/video_out_xshm.c
new file mode 100644
index 000000000..61531225f
--- /dev/null
+++ b/src/video_out/video_out_xshm.c
@@ -0,0 +1,968 @@
+/*
+ * Copyright (C) 2000 the xine project
+ *
+ * This file is part of xine, a unix video player.
+ *
+ * xine 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.
+ *
+ * xine 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+ * $Id: video_out_xshm.c,v 1.1 2001/04/24 20:53:00 f1rmb Exp $
+ *
+ * video_out_xshm.c, X11 shared memory extension interface for xine
+ *
+ * based on mpeg2dec code from
+ * Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
+ *
+ * xine-specific code by Guenter Bartsch <bartscgr@studbox.uni-stuttgart.de>
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "video_out.h"
+
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/cursorfont.h>
+#include <errno.h>
+
+#include <X11/extensions/XShm.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#include <sys/time.h>
+
+#include <Imlib.h>
+#include <pthread.h>
+
+#include "xine_internal.h"
+#include "monitor.h"
+#include "libmpeg2/mpeg2.h"
+#include "yuv2rgb.h"
+#warning "FIXME"
+#include "../gui/gui_dnd.h"
+#include "../gui/gui_main.h"
+
+extern uint32_t xine_debug;
+
+extern int XShmGetEventBase(Display *);
+
+extern Display *gDisplay;
+extern pthread_mutex_t gXLock;
+extern Window gVideoWin;
+extern ImlibImage *gXineLogoImg;
+extern ImlibData *gImlib_data;
+extern Pixmap gXineLogo;
+extern int gXineLogoWidth, gXineLogoHeight;
+
+typedef struct xshm_image_info_s {
+ vo_image_buffer_t mImageBuffer;
+ XImage *mImage;
+ XShmSegmentInfo mShminfo;
+} xshm_image_buffer_t;
+
+typedef struct _xshm_globals {
+ int screen;
+ Window window;
+ XVisualInfo vinfo;
+ int depth,bpp;
+ int bFullscreen;
+ int bIsFullscreen;
+ GC gc;
+ uint32_t image_width;
+ uint32_t image_height;
+ uint32_t image_xoff;
+ uint32_t image_yoff;
+ uint32_t dest_width;
+ uint32_t dest_height;
+ uint32_t ratio;
+ int user_ratio, user_ratio_changed;
+ int bYuvInitialized;
+ int bytes_per_pixel;
+ int hstride_rgb, hstride_y, hstride_uv;
+ int anamorphic;
+
+
+ xshm_image_buffer_t *cur_image;
+
+ /*
+ * misc (read: fun ;))
+ */
+ int bLogoMode;
+
+#define HIDE_CURSOR 0
+#define SHOW_CURSOR 1
+ Cursor mcursor[2];
+ int current_cursor;
+
+ int bFail;
+ int bUseShm;
+ DND_struct_t *xdnd;
+} xshm_globals;
+
+
+xshm_globals gXshm ;
+
+int HandleXError (Display *gDisplay, XErrorEvent *xevent) {
+
+ xprintf (VERBOSE|VIDEO, "\n\n*** X ERROR *** \n\n\n");
+
+ gXshm.bFail = 1;
+ return 0;
+
+}
+
+static void x11_InstallXErrorHandler ()
+{
+ XSetErrorHandler (HandleXError);
+ XFlush (gDisplay);
+}
+
+static void x11_DeInstallXErrorHandler ()
+{
+ XSetErrorHandler (NULL);
+ XFlush (gDisplay);
+}
+
+static int get_capabilities_xshm () {
+ return VO_CAP_COPIES_IMAGE | VO_CAP_YV12;
+}
+
+static unsigned char bm_no_data[] = { 0,0,0,0, 0,0,0,0 };
+
+static void create_cursor_xshm (Colormap colormap) {
+ Pixmap bm_no;
+ XColor black, dummy;
+
+ /*
+ * create empty cursor
+ */
+
+ bm_no = XCreateBitmapFromData(gDisplay, gXshm.window,
+ bm_no_data, 8, 8);
+
+ XAllocNamedColor(gDisplay,colormap,"black",&black,&dummy);
+ gXshm.mcursor[0] = XCreatePixmapCursor(gDisplay, bm_no, bm_no,
+ &black, &black,
+ 0, 0);
+ gXshm.mcursor[1]= XCreateFontCursor(gDisplay, XC_left_ptr);
+
+}
+
+static void display_cursor_xshm(int state) {
+
+ XDefineCursor(gDisplay, gXshm.window, gXshm.mcursor[state]);
+ gXshm.current_cursor = state;
+}
+
+static void setup_window_xshm () {
+ char *hello = "xine video output";
+ Colormap theCmap = 0;
+ XSizeHints hint;
+ XWMHints *wm_hint;
+ XEvent xev;
+ XGCValues xgcv;
+ XColor background, ignored;
+ XSetWindowAttributes attr;
+ int ww, wh;
+ float aspect;
+ Atom WM_DELETE_WINDOW;
+ XClassHint *xshm_xclasshint;
+
+ XLOCK ();
+
+
+ if((xshm_xclasshint = XAllocClassHint()) != NULL) {
+ xshm_xclasshint->res_name = "Xine Xshm Video";
+ xshm_xclasshint->res_class = "Xine";
+ }
+
+ if (gXshm.bFullscreen) {
+
+ ww = DisplayWidth (gDisplay, gXshm.screen);
+ wh = DisplayHeight (gDisplay, gXshm.screen);
+
+ /*
+ * zoom to fullscreen
+ */
+
+ if (gXshm.dest_width < ww) {
+ aspect = (float) gXshm.dest_width / (float) gXshm.dest_height ;
+
+ gXshm.dest_width = ww;
+ gXshm.dest_height = ww / aspect;
+ }
+
+ gXshm.image_xoff = ( ww - gXshm.dest_width) / 2;
+ gXshm.image_yoff = ( wh - gXshm.dest_height) / 2;
+
+
+ if (gXshm.window) {
+
+ if (gXshm.bIsFullscreen) {
+ XUNLOCK ();
+ return;
+ }
+
+ XDestroyWindow(gDisplay, gXshm.window);
+ gXshm.window = 0;
+
+ }
+
+ gXshm.bIsFullscreen = 1;
+
+ /*
+ * open fullscreen window
+ */
+
+ if (XAllocNamedColor (gDisplay, DefaultColormap (gDisplay, gXshm.screen),
+ "black",
+ &background, &ignored) == 0) {
+ fprintf (stderr, "Cannot allocate color black\n");
+ exit(1);
+ }
+
+ attr.background_pixel = background.pixel;
+ attr.override_redirect = True;
+
+ gXshm.window =
+ XCreateWindow (gDisplay, RootWindow (gDisplay, gXshm.screen), 0, 0,
+ ww, wh, 0, gXshm.depth,
+ CopyFromParent, DefaultVisual (gDisplay, gXshm.screen),
+ CWBackPixel|CWOverrideRedirect, &attr);
+
+ if(xshm_xclasshint != NULL)
+ XSetClassHint(gDisplay, gXshm.window, xshm_xclasshint);
+
+ gVideoWin = gXshm.window;
+
+ } else {
+
+ if (gXshm.window) {
+
+ if (gXshm.bIsFullscreen) {
+ XDestroyWindow(gDisplay, gXshm.window);
+ gXshm.window = 0;
+ } else {
+
+ XResizeWindow (gDisplay, gXshm.window, gXshm.dest_width,
+ gXshm.dest_height);
+
+ XFlush(gDisplay);
+ XSync(gDisplay, False);
+ XUNLOCK ();
+ return;
+
+ }
+ }
+
+ gXshm.bIsFullscreen = 0;
+
+
+ hint.x = 0;
+ hint.y = 0;
+ hint.width = gXshm.dest_width;
+ hint.height = gXshm.dest_height;
+ hint.flags = PPosition | PSize;
+
+ theCmap = XCreateColormap(gDisplay, RootWindow(gDisplay,gXshm.screen),
+ gXshm.vinfo.visual, AllocNone);
+
+ attr.background_pixel = 0;
+ attr.border_pixel = 1;
+ attr.colormap = theCmap;
+
+ gXshm.window = XCreateWindow(gDisplay, RootWindow(gDisplay, gXshm.screen),
+ hint.x, hint.y, hint.width, hint.height, 4,
+ gXshm.depth,CopyFromParent,gXshm.vinfo.visual,
+ CWBackPixel | CWBorderPixel |CWColormap,&attr);
+
+ if(xshm_xclasshint != NULL)
+ XSetClassHint(gDisplay, gXshm.window, xshm_xclasshint);
+
+ gVideoWin = gXshm.window;
+
+ /* Tell other applications about this window */
+
+ XSetStandardProperties(gDisplay, gXshm.window, hello, hello,
+ None, NULL, 0, &hint);
+
+ gXshm.image_xoff = 0;
+ gXshm.image_yoff = 0;
+ }
+
+ XSelectInput(gDisplay, gXshm.window, StructureNotifyMask | ExposureMask | KeyPressMask | ButtonPressMask | StructureNotifyMask);
+
+ wm_hint = XAllocWMHints();
+ if (wm_hint != NULL) {
+ wm_hint->input = True;
+ wm_hint->initial_state = NormalState;
+ wm_hint->flags = InputHint | StateHint;
+ XSetWMHints(gDisplay, gXshm.window, wm_hint);
+ XFree(wm_hint);
+ }
+
+ WM_DELETE_WINDOW = XInternAtom(gDisplay, "WM_DELETE_WINDOW", False);
+ XSetWMProtocols(gDisplay, gXshm.window, &WM_DELETE_WINDOW, 1);
+
+ /* Map window. */
+
+ XMapWindow(gDisplay, gXshm.window);
+
+ /* Wait for map. */
+ do {
+ XMaskEvent(gDisplay,
+ StructureNotifyMask,
+ &xev) ;
+ } while (xev.type != MapNotify || xev.xmap.event != gXshm.window);
+
+ XFlush(gDisplay);
+ XSync(gDisplay, False);
+
+ gXshm.gc = XCreateGC(gDisplay, gXshm.window, 0L, &xgcv);
+
+ if (gXshm.bFullscreen)
+ XSetInputFocus (gDisplay, gXshm.window, RevertToNone, CurrentTime);
+
+ if (gXshm.bFullscreen) {
+ if (!gXshm.mcursor[0]) {
+ create_cursor_xshm (theCmap);
+ }
+
+ //display_cursor_xshm(HIDE_CURSOR);
+ }
+ /* drag and drop */
+
+ XUNLOCK ();
+
+ if(!gXshm.xdnd)
+ gXshm.xdnd = (DND_struct_t *) malloc(sizeof(DND_struct_t));
+
+ gui_init_dnd(gXshm.xdnd);
+ gui_dnd_set_callback (gXshm.xdnd, gui_dndcallback);
+ gui_make_window_dnd_aware (gXshm.xdnd, gXshm.window);
+
+}
+
+/* allocates ximages if necessary */
+static int set_image_format_xshm (uint32_t width, uint32_t height, uint32_t ratio, int format) {
+
+ /* FIXME: handle format argument */
+
+ if ( (gXshm.image_width == width)
+ && (gXshm.image_height == height)
+ && (gXshm.ratio == ratio)
+ && (gXshm.bFullscreen == gXshm.bIsFullscreen)
+ && !gXshm.user_ratio_changed )
+ return 0;
+
+ gXshm.image_width = width;
+ gXshm.image_height = height;
+ gXshm.hstride_rgb = gXshm.dest_width * gXshm.bytes_per_pixel;
+ gXshm.hstride_y = gXshm.image_width;
+ gXshm.hstride_uv = gXshm.image_width / 2;
+ gXshm.ratio = ratio;
+ gXshm.user_ratio_changed = 0;
+
+ /*
+ * calculate dest size from ratio
+ */
+
+ /*
+ * Mpeg-2:
+ */
+
+ if (gXshm.user_ratio == ASPECT_AUTO) {
+ switch (gXshm.ratio) {
+ case 0: /* forbidden */
+ fprintf (stderr, "invalid ratio\n");
+ exit (1);
+ break;
+ case 1: /* square */
+ gXshm.dest_width = width;
+ gXshm.dest_height = height;
+ gXshm.anamorphic = 0;
+ break;
+ case 2: /* 4:3 */
+ gXshm.dest_width = width ;
+ gXshm.dest_height = height;
+ gXshm.anamorphic = 0;
+ break;
+ case 3: /* 16:9 */
+ gXshm.dest_width = width * 5/4;
+ gXshm.dest_height = height;
+ gXshm.anamorphic = 1;
+ break;
+ default:
+ gXshm.dest_width = width;
+ gXshm.dest_height = height;
+ xprintf (VERBOSE|VIDEO, "invalid ratio\n");
+ /*exit (1); */
+ break;
+ }
+ } else if (gXshm.user_ratio == ASPECT_ANAMORPHIC) {
+ gXshm.dest_width = width *5/4 ;
+ gXshm.dest_height = height;
+ gXshm.anamorphic = 1;
+ } else {
+ gXshm.dest_width = width;
+ gXshm.dest_height = height;
+ gXshm.anamorphic = 0;
+ }
+
+
+ xprintf (VERBOSE|VIDEO, "picture size : %d x %d (Ratio: %d)\n",
+ width, height, ratio);
+
+ setup_window_xshm () ;
+
+ return 1;
+}
+
+static void dispose_image_buffer_xshm (vo_image_buffer_t *vo_img) {
+
+ xshm_image_buffer_t *img = (xshm_image_buffer_t *) vo_img;
+
+ XLOCK ();
+
+ if (gXshm.bUseShm) {
+
+ XShmDetach(gDisplay, &img->mShminfo);
+ XDestroyImage(img->mImage);
+ shmdt(img->mShminfo.shmaddr);
+ shmctl (img->mShminfo.shmid, IPC_RMID,NULL);
+
+ } else {
+
+ XDestroyImage(img->mImage);
+
+ }
+
+ free (img);
+
+ XUNLOCK ();
+}
+
+
+static vo_image_buffer_t *alloc_image_buffer_xshm () {
+
+ uint32_t image_size;
+ xshm_image_buffer_t *img ;
+
+ XLOCK ();
+
+ img = (xshm_image_buffer_t *) malloc (sizeof (xshm_image_buffer_t));
+
+ if (img==NULL) {
+ printf ("out of memory while allocating image buffer\n");
+ exit (1);
+ }
+
+ if (gXshm.bUseShm) {
+ img->mImage = XShmCreateImage(gDisplay,
+ gXshm.vinfo.visual,
+ gXshm.vinfo.depth,
+ ZPixmap, NULL,
+ &img->mShminfo,
+ gXshm.dest_width,
+ gXshm.dest_height);
+
+ if (img->mImage == NULL ) {
+ fprintf(stderr, "Shared memory error when allocating image => exit (Ximage error)\n");
+ exit (1);
+ }
+
+ gXshm.bpp = img->mImage->bits_per_pixel;
+ gXshm.bytes_per_pixel = gXshm.bpp / 8;
+ gXshm.hstride_rgb = gXshm.dest_width * gXshm.bytes_per_pixel;
+ img->mShminfo.shmid=shmget(IPC_PRIVATE,
+ img->mImage->bytes_per_line * img->mImage->height,
+ IPC_CREAT | 0777);
+
+ if (img->mShminfo.shmid < 0 ) {
+ printf("%s: allocating image \n",strerror(errno));
+ exit (1);
+ }
+
+ img->mShminfo.shmaddr = (char *) shmat(img->mShminfo.shmid, 0, 0);
+
+ if (img->mShminfo.shmaddr == ((char *) -1)) {
+ fprintf(stderr, "Shared memory error (address error) when allocating image \n");
+ exit (1);
+ }
+
+ img->mShminfo.readOnly = False;
+ img->mImage->data = img->mShminfo.shmaddr;
+
+ XShmAttach(gDisplay, &img->mShminfo);
+
+ XSync(gDisplay, False);
+ /* shmctl(img->mShminfo.shmid, IPC_RMID, 0);*/
+ } else { /* no shm */
+
+ /*
+ XResizeWindow (gDisplay, gXshm.window, gXshm.dest_width,
+ gXshm.dest_height);
+
+ XSync(gDisplay, False);
+ */
+ img->mImage = XGetImage (gDisplay, gXshm.window, 0, 0,
+ gXshm.dest_width, gXshm.dest_height,
+ AllPlanes, ZPixmap);
+ XSync(gDisplay, False);
+ }
+
+
+ image_size = gXshm.image_width * gXshm.image_height;
+ img->mImageBuffer.mem[0] = malloc(image_size);
+ img->mImageBuffer.mem[1] = malloc(image_size/4);
+ img->mImageBuffer.mem[2] = malloc(image_size/4);
+
+ if (!gXshm.bYuvInitialized) {
+ int mode = ((img->mImage->blue_mask & 0x01)) ? MODE_RGB : MODE_BGR;
+ yuv2rgb_init((gXshm.depth == 24) ? gXshm.bpp : gXshm.depth, mode);
+ gXshm.bYuvInitialized = 1;
+ }
+
+ XUNLOCK ();
+
+ pthread_mutex_init (&img->mImageBuffer.mutex, NULL);
+
+ return (vo_image_buffer_t *) img;
+}
+
+static void process_macroblock_xshm (vo_image_buffer_t *img,
+ uint8_t *py, uint8_t *pu, uint8_t *pv,
+ int slice_num,
+ int subslice_num) {
+
+ uint8_t *dst;
+ int subslice_offset;
+ xshm_image_buffer_t *xshm_img = (xshm_image_buffer_t *) img;
+ int slice_offset;
+
+ slice_offset = slice_num * 16 * gXshm.dest_width ;
+ if (gXshm.anamorphic)
+ subslice_offset = subslice_num *20 ;
+ else
+ subslice_offset = subslice_num *16 ;
+
+ dst = xshm_img->mImage->data + (slice_offset + subslice_offset) * gXshm.bytes_per_pixel ;
+
+ if (gXshm.anamorphic)
+ yuv2rgb_anamorphic(dst,
+ py, pu, pv,
+ gXshm.hstride_rgb,
+ gXshm.hstride_y,
+ gXshm.hstride_uv);
+ else
+ yuv2rgb(dst,
+ py, pu, pv,
+ gXshm.hstride_rgb,
+ gXshm.hstride_y,
+ gXshm.hstride_uv);
+}
+
+static int is_fullscreen_xshm () {
+ return gXshm.bFullscreen;
+}
+
+static void set_fullscreen_xshm (int bFullscreen) {
+
+ xprintf(VERBOSE|VIDEO, "(!)Fullscreen not implemented for xshm.\n");
+
+ return ; /* FIXME - not implemented for xshm */
+
+ gXshm.bFullscreen = bFullscreen;
+
+ set_image_format_xshm (gXshm.image_width, gXshm.image_height, gXshm.ratio, IMGFMT_YV12);
+}
+
+static void display_frame_xshm (vo_image_buffer_t *vo_img) {
+
+ xshm_image_buffer_t *img = (xshm_image_buffer_t *) vo_img;
+
+ XLOCK ();
+
+ if (gXshm.bUseShm) {
+
+ XShmPutImage(gDisplay, gXshm.window, gXshm.gc, img->mImage,
+ 0, 0, 0, 0,
+ img->mImage->width, img->mImage->height, True);
+ } else {
+
+ xprintf (VERBOSE|VIDEO, "display frame\n");
+
+ XPutImage(gDisplay, gXshm.window, gXshm.gc, img->mImage,
+ 0, 0, 0, 0,
+ img->mImage->width, img->mImage->height);
+ }
+
+ XFlush(gDisplay);
+
+ if (gXshm.cur_image) {
+ vo_image_drawn ( (vo_image_buffer_t *) gXshm.cur_image);
+ }
+
+ gXshm.cur_image = img;
+
+ XUNLOCK ();
+}
+
+static void draw_logo_xshm () {
+ ImlibImage *resized_image;
+ int xwin, ywin, tmp;
+ unsigned int wwin, hwin, bwin, dwin;
+ double ratio = 1;
+ Window rootwin;
+
+ XLOCK ();;
+
+ XClearWindow (gDisplay, gXshm.window);
+
+ if(XGetGeometry(gDisplay, gXshm.window, &rootwin,
+ &xwin, &ywin, &wwin, &hwin, &bwin, &dwin) != BadDrawable) {
+
+ tmp = (wwin / 100) * 86;
+ ratio = (tmp < gXineLogoWidth && tmp >= 1) ?
+ (ratio = (double)tmp / (double)gXineLogoWidth) : 1;
+ }
+
+ resized_image = Imlib_clone_image(gImlib_data, gXineLogoImg);
+ Imlib_render (gImlib_data, resized_image,
+ (int)gXineLogoWidth * ratio,
+ (int)gXineLogoHeight * ratio);
+
+ XCopyArea (gDisplay, resized_image->pixmap, gXshm.window, gXshm.gc, 0, 0,
+ resized_image->width, resized_image->height,
+ (wwin - resized_image->width) / 2,
+ (hwin - resized_image->height) / 2);
+
+ XFlush(gDisplay);
+
+ Imlib_destroy_image(gImlib_data, resized_image);
+
+ XUNLOCK ();;
+}
+
+static void handle_event_xshm (XEvent *event) {
+
+ switch (event->type) {
+ case Expose:
+ if (event->xexpose.window == gXshm.window) {
+ if (gXshm.bLogoMode) {
+ draw_logo_xshm ();
+ } else {
+ XLOCK ();
+ XClearWindow (gDisplay, gXshm.window);
+ if (gXshm.cur_image)
+ XShmPutImage(gDisplay, gXshm.window, gXshm.gc,
+ gXshm.cur_image->mImage,
+ 0, 0, 0, 0,
+ gXshm.cur_image->mImage->width,
+ gXshm.cur_image->mImage->height, True);
+ XUNLOCK ();
+ }
+ }
+ break;
+
+ case ClientMessage:
+ if(event->xany.window == gXshm.window)
+ gui_dnd_process_client_message (gXshm.xdnd, event);
+ break;
+ }
+}
+
+static void set_logo_mode_xshm (int bLogoMode) {
+ gXshm.bLogoMode = bLogoMode;
+
+ if (bLogoMode)
+ draw_logo_xshm ();
+}
+
+static void reset_xshm () {
+
+ if (gXshm.cur_image) {
+ vo_image_drawn ( (vo_image_buffer_t *) gXshm.cur_image);
+ gXshm.cur_image = NULL;
+ }
+
+}
+
+void set_aspect_xshm (int ratio) {
+
+ ratio %= 3; /* DVB unsupported */
+
+ if (ratio != gXshm.user_ratio) {
+ gXshm.user_ratio = ratio;
+ gXshm.user_ratio_changed = 1;
+
+ set_image_format_xshm (gXshm.image_width, gXshm.image_height, gXshm.ratio, IMGFMT_YV12);
+ }
+
+ printf ("set_aspect done\n");
+}
+
+int get_aspect_xshm () {
+ return gXshm.user_ratio;
+}
+
+void exit_xshm () {
+}
+
+static int get_noop(void) {
+ return 0;
+}
+
+static int set_noop(int v) {
+ return v;
+}
+
+static vo_driver_t vo_xshm = {
+ get_capabilities_xshm,
+ set_image_format_xshm,
+ alloc_image_buffer_xshm,
+ dispose_image_buffer_xshm,
+ process_macroblock_xshm,
+ display_frame_xshm,
+ set_fullscreen_xshm,
+ is_fullscreen_xshm,
+ handle_event_xshm,
+ set_logo_mode_xshm,
+ reset_xshm,
+ display_cursor_xshm,
+ set_aspect_xshm,
+ get_aspect_xshm,
+ exit_xshm,
+
+ get_noop,
+ get_noop,
+ set_noop,
+ get_noop,
+
+ get_noop,
+ get_noop,
+ set_noop,
+ get_noop,
+
+ get_noop,
+ get_noop,
+ set_noop,
+ get_noop,
+
+ get_noop,
+ get_noop,
+ set_noop,
+ get_noop,
+
+ get_noop,
+ get_noop,
+ set_noop,
+
+ NULL,
+ NULL
+};
+
+/*
+ * connect to server, create and map window,
+ * allocate colors and (shared) memory
+ */
+
+vo_driver_t *init_video_out_xshm () {
+
+ int completionType = -1;
+ XWindowAttributes attribs;
+ int minor, major;
+ Bool bPixmaps;
+ XImage *myimage;
+ XShmSegmentInfo myshminfo;
+
+ /* XLOCK (); */
+
+ gXshm.image_width=720;
+ gXshm.image_height=576;
+
+ /*
+ * ok, X11, prepare for some video!
+ */
+
+ gXshm.screen = DefaultScreen(gDisplay);
+
+ XGetWindowAttributes(gDisplay, DefaultRootWindow(gDisplay), &attribs);
+
+ /*
+ *
+ * depth in X11 terminology land is the number of bits used to
+ * actually represent the colour.
+ *
+ * bpp in X11 land means how many bits in the frame buffer per
+ * pixel.
+ *
+ * ex. 15 bit color is 15 bit depth and 16 bpp. Also 24 bit
+ * color is 24 bit depth, but can be 24 bpp or 32 bpp.
+ */
+
+ gXshm.depth = attribs.depth;
+
+ if (gXshm.depth != 15 && gXshm.depth != 16 && gXshm.depth != 24 && gXshm.depth != 32) {
+ /* The root window may be 8bit but there might still be
+ * visuals with other bit depths. For example this is the
+ * case on Sun/Solaris machines.
+ */
+ gXshm.depth = 24;
+ }
+
+ XMatchVisualInfo(gDisplay, gXshm.screen, gXshm.depth, TrueColor, &gXshm.vinfo);
+
+ gXshm.bUseShm = 1;
+
+ /*
+ * check for X shared memory support
+ */
+
+ if (!XShmQueryExtension(gDisplay)) {
+ xprintf(VERBOSE|VIDEO, "Shared memory not supported\n\n");
+ gXshm.bUseShm = 0;
+ goto finishShmTesting;
+ }
+
+ if (!XShmQueryVersion (gDisplay, &major, &minor, &bPixmaps)){
+ xprintf(VERBOSE|VIDEO, "Shared memory not supported\n\n");
+ gXshm.bUseShm = 0;
+ goto finishShmTesting;
+ }
+
+ xprintf (VERBOSE|VIDEO, "pixmaps : %d ?= %d\n", bPixmaps, True);
+
+ if (!bPixmaps) {
+ xprintf(VERBOSE|VIDEO, "creation of shared pixmaps not possible\n\n");
+ gXshm.bUseShm = 0;
+ goto finishShmTesting;
+ }
+
+
+ completionType = XShmGetEventBase(gDisplay) + ShmCompletion;
+
+ /* try to create shared image */
+ gXshm.bFail = 0;
+ x11_InstallXErrorHandler ();
+
+ myimage = XShmCreateImage(gDisplay,
+ gXshm.vinfo.visual,
+ gXshm.vinfo.depth,
+ ZPixmap, NULL,
+ &myshminfo,
+ 100,
+ 100);
+
+ if (myimage == NULL ) {
+ xprintf(VERBOSE|VIDEO, "Shared memory error when allocating image => exit (Ximage error)\n");
+ gXshm.bUseShm = 0;
+ x11_DeInstallXErrorHandler();
+ goto finishShmTesting;
+ }
+
+ gXshm.bpp = myimage->bits_per_pixel;
+ gXshm.bytes_per_pixel = gXshm.bpp / 8;
+
+ myshminfo.shmid=shmget(IPC_PRIVATE,
+ myimage->bytes_per_line * myimage->height,
+ IPC_CREAT | 0777);
+
+ if (myshminfo.shmid < 0 ) {
+ xprintf(VERBOSE|VIDEO, "%s: allocating image \n",strerror(errno));
+ gXshm.bUseShm = 0;
+ x11_DeInstallXErrorHandler();
+ goto finishShmTesting;
+ }
+
+ myshminfo.shmaddr = (char *) shmat(myshminfo.shmid, 0, 0);
+
+ if (myshminfo.shmaddr == ((char *) -1)) {
+ xprintf(VERBOSE|VIDEO, "Shared memory error (address error) when allocating image \n");
+ gXshm.bUseShm = 0;
+ x11_DeInstallXErrorHandler();
+ goto finishShmTesting;
+ }
+
+ myshminfo.readOnly = False;
+ myimage->data = myshminfo.shmaddr;
+
+ XShmAttach(gDisplay, &myshminfo);
+
+ XSync(gDisplay, False);
+
+ if (gXshm.bFail) {
+ xprintf (VERBOSE|VIDEO, "Couldn't create shared memory image\n");
+ gXshm.bUseShm = 0;
+ x11_DeInstallXErrorHandler();
+ goto finishShmTesting;
+ }
+
+ XShmDetach (gDisplay, &myshminfo);
+ XDestroyImage (myimage);
+ shmdt (myshminfo.shmaddr);
+ shmctl (myshminfo.shmid, IPC_RMID, 0);
+
+ x11_DeInstallXErrorHandler();
+
+ finishShmTesting:
+
+ if (!gXshm.bUseShm) {
+ printf ("\n\n!!! failed to initialize X shared memory extension. Fall back to plain X11 functions. This is very slow and mostly untested. Are you sure you're using a local graphics device for output? Remote playing via network is not supported by xine!!!\n\n");
+ }
+
+
+ /*
+ * init global variables
+ */
+
+ gXshm.bFullscreen = 0;
+ gXshm.bIsFullscreen = 0;
+ gXshm.ratio = 0;
+ gXshm.user_ratio = ASPECT_AUTO;
+ gXshm.user_ratio_changed = 0 ;
+ gXshm.bLogoMode = 1;
+ gXshm.bYuvInitialized = 0;
+ gXshm.cur_image = NULL;
+
+ set_image_format_xshm (720,576,1,IMGFMT_YV12);
+
+ create_cursor_xshm(DefaultColormap(gDisplay, 0));
+ gXshm.current_cursor = SHOW_CURSOR;
+
+ /*
+ * If gVo.depth is 24 then it may either be a 3 or 4 byte per pixel
+ * format. We can't use bpp because then we would lose the
+ * distinction between 15/16bit gVo.depth (2 byte formate assumed).
+ *
+ * FIXME - change yuv2rgb_init to take both gVo.depth and bpp
+ * parameters
+ */
+
+ if (gXshm.depth>16)
+ printf ("\n\nWARNING: current display depth is %d. For better performance\na depth of 16 bpp is recommended!\n\n",
+ gXshm.depth);
+
+ /* yuv2rgb_init((gXshm.depth == 24) ? gXshm.bpp : gXshm.depth,MODE_RGB); */
+
+ /* XUNLOCK (); */
+
+ return &vo_xshm;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-24 14:17:23 +0000