diff options
Diffstat (limited to 'mpeglib/lib/util/render/x11/imageDeskX11.cpp')
| -rw-r--r-- | mpeglib/lib/util/render/x11/imageDeskX11.cpp | 439 |
1 files changed, 439 insertions, 0 deletions
diff --git a/mpeglib/lib/util/render/x11/imageDeskX11.cpp b/mpeglib/lib/util/render/x11/imageDeskX11.cpp new file mode 100644 index 00000000..9607d749 --- /dev/null +++ b/mpeglib/lib/util/render/x11/imageDeskX11.cpp @@ -0,0 +1,439 @@ +/* + standard and shared mem X11 images + Copyright (C) 2000 Martin Vogt + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU Library General Public License as published by + the Free Software Foundation. + + For more information look at the file COPYRIGHT in this package + + */ + + +#include "imageDeskX11.h" + +#include <iostream> + +using namespace std; + +static int lXerror; + +static int dummy(Display* , XErrorEvent*) { + lXerror=true; + return true; +} + + + +ImageDeskX11::ImageDeskX11() { + lSupport=true; + supportedModes = _IMAGE_DESK | _IMAGE_DOUBLE | _IMAGE_FULL; + setIdentifier("Standard X11"); + xWindow = NULL; + ditherWrapper=NULL; +#ifdef X11_XVIDMODE + iOldMode = -1; + vm_modelines = NULL; +#endif +} + + +ImageDeskX11::~ImageDeskX11() { + destroyImage(); + if (ditherWrapper != NULL) { + delete ditherWrapper; + } +} + + +void ImageDeskX11::init(XWindow* xWindow, YUVPicture*) +{ + videoaccesstype=VIDEO_XI_NONE; + this->xWindow=xWindow; + virtualscreen=NULL; + ximage=NULL; + imageMode=_IMAGE_NONE; + if (ditherWrapper == NULL) { + ditherWrapper=new DitherWrapper(xWindow->depth, + xWindow->redMask, + xWindow->greenMask, + xWindow->blueMask, + xWindow->pixel); + } + +#ifdef X11_SHARED_MEM + shmseginfo=NULL; +#endif +} + +int ImageDeskX11::support() { + return lSupport; +} + + +int ImageDeskX11::openImage(int mode) { + + if (xWindow == NULL) { + cout << "ImageDeskX11::openImage - call init before open!" << endl; + return false; + } + + closeImage(); + imageMode = mode; + int err; + + if ((err=createImage(VIDEO_XI_SHMSTD,imageMode)) != ERR_XI_OK) { + printf("\nX initialisation error:\n *** %s\n",ERR_XI_STR[err]); + printf("check ipcs and delete resources with ipcrm\n"); + if ((err=createImage(VIDEO_XI_STANDARD,imageMode)) != ERR_XI_OK) { + printf("\nX initialisation error:\n *** %s\n",ERR_XI_STR[err]); + videoaccesstype=VIDEO_XI_NONE; + } else { + lSupport=true; + } + } else { + lSupport=true; + } + switch(videoaccesstype) { + case VIDEO_XI_STANDARD: + //printf(" # using conventional Xlib calls.\n\n"); + break; + case VIDEO_XI_SHMSTD: + //printf(" # Using Xlib shared memory extension %d.%d\n\n", + //XShmMajor,XShmMinor); + break; + default: + cout << "could not create image->no video output possible"<<endl; + + } + + iOffsetX = iOffsetY = 0; + int w = xWindow->width; + int h = xWindow->height; + if (IS_FULL(imageMode)) { + switchMode(xWindow->width, xWindow->height, IS_DOUBLE(imageMode)); + iOffsetX = (iWidth - w) / 2; + iOffsetY = (iHeight - h) / 2; + if (bZoom) { + iOffsetX -= w / 2; + iOffsetY -= h / 2; + } + XResizeWindow(xWindow->display, xWindow->window, iWidth, iHeight); + } else if (IS_DOUBLE(imageMode)) { + XResizeWindow(xWindow->display, xWindow->window, + xWindow->width * 2, xWindow->height * 2); + } + + if (lSupport==true) { + return true; + } + return false; +} + + +int ImageDeskX11::closeImage() { + destroyImage(); + +#ifdef X11_XVIDMODE + if (iOldMode != -1) { + cout << "switch back to original videomode" << endl; + XF86VidModeSwitchToMode(xWindow->display,XDefaultScreen(xWindow->display), + vm_modelines[iOldMode]); + XFlush(xWindow->display); + iOldMode=-1; + } +#endif + + return true; +} + + +void ImageDeskX11::ditherImage(YUVPicture* pic) { + if (xWindow == NULL) { + cout << "ImageDeskX11::ditherImage - you have to call init first!" << endl; + return; + } + + ditherWrapper->doDither(pic,xWindow->depth,imageMode, + virtualscreen,0); +} + + +void ImageDeskX11::putImage(){ + if (xWindow == NULL) { + cout << "ImageDeskX11::putImage - you have to call init first!" << endl; + return; + } + + + int height=xWindow->height; + int width=xWindow->width; + + if (imageMode & _IMAGE_DOUBLE) { + height=2*height; + width=2*width; + } + +#ifdef X11_SHARED_MEM + switch(videoaccesstype) { + case VIDEO_XI_SHMSTD: + XShmPutImage(xWindow->display,xWindow->window, + xWindow->gc,ximage, + 0, 0, iOffsetX, iOffsetY, width, height, False); + XSync(xWindow->display,false); /* true not needed, done by XPending */ + break; + + + case VIDEO_XI_STANDARD: +#endif + XPutImage(xWindow->display,xWindow->window, + xWindow->gc, ximage, + 0, 0, iOffsetX, iOffsetY, width, height); + XSync(xWindow->display,false); /* true not needed, done by XPending */ +#ifdef X11_SHARED_MEM + break; + } +#endif +} + + + +int ImageDeskX11::createImage(int createType,int mode) { + + if (xWindow == NULL) { + cout << "ImageDeskX11::createImage - you have to call init first!" << endl; + return false; + } + + videoaccesstype=VIDEO_XI_NONE; + +#ifdef X11_SHARED_MEM + if(XShmQueryVersion(xWindow->display,&XShmMajor,&XShmMinor,&XShmPixmaps)) { + if (XShmPixmaps==True) { + if (createType & VIDEO_XI_SHMSTD) { + videoaccesstype=VIDEO_XI_SHMSTD; + } + } + } else { + if (createType & VIDEO_XI_SHMSTD) { + return ERR_XI_NOSHAREDMEMORY; + } + } +#endif + if (videoaccesstype == VIDEO_XI_NONE) { + videoaccesstype=createType; + } + + switch(videoaccesstype) + { +#ifdef X11_SHARED_MEM + + + case VIDEO_XI_SHMSTD: + + lXerror=false; + XSetErrorHandler(dummy); + + shmseginfo=(XShmSegmentInfo *)malloc(sizeof(XShmSegmentInfo)); + if(!shmseginfo) + return ERR_XI_SHMALLOC; + + memset(shmseginfo,0, sizeof(XShmSegmentInfo)); + + if (imageMode & _IMAGE_DOUBLE) { + ximage=XShmCreateImage(xWindow->display,xWindow->visual, + xWindow->depth, + ZPixmap,NULL,shmseginfo,2*xWindow->width, + 2*xWindow->height); + } else { + ximage=XShmCreateImage(xWindow->display,xWindow->visual, + xWindow->depth, + ZPixmap,NULL,shmseginfo,xWindow->width, + xWindow->height); + } + + if(!ximage) + return ERR_XI_SHMXIMAGE; + + shmseginfo->shmid=shmget(IPC_PRIVATE, + ximage->bytes_per_line* + ximage->height,IPC_CREAT|0777); + + if(shmseginfo->shmid<0) + return ERR_XI_SHMSEGINFO; + + shmseginfo->shmaddr=(char*)shmat(shmseginfo->shmid,NULL,0); + ximage->data=shmseginfo->shmaddr; + virtualscreen=(unsigned char *)ximage->data; + + if(!virtualscreen) + return ERR_XI_SHMVIRTALLOC; + + shmseginfo->readOnly=False; + + XShmAttach(xWindow->display,shmseginfo); + XSync(xWindow->display, False); + XSetErrorHandler(NULL); + XFlush(xWindow->display); + if (lXerror) { + cout << "ERR_XI_SHMATTACH -2"<<endl; + return ERR_XI_SHMATTACH; + } + + break; +#endif + + case VIDEO_XI_STANDARD: + if (mode & _IMAGE_DOUBLE) { + virtualscreen=(unsigned char *) + malloc(xWindow->screensize*sizeof(char)*4); + + if(virtualscreen==NULL) + return ERR_XI_VIRTALLOC; + + ximage=XCreateImage(xWindow->display,xWindow->visual, + xWindow->depth,ZPixmap, + 0,(char*)virtualscreen, + 2*xWindow->width,2*xWindow->height, + 32,2*xWindow->width*xWindow->pixelsize); + } else { + virtualscreen=(unsigned char *) + malloc(xWindow->screensize*sizeof(char)); + + if(virtualscreen==NULL) + return ERR_XI_VIRTALLOC; + + ximage=XCreateImage(xWindow->display,xWindow->visual, + xWindow->depth,ZPixmap, + 0,(char*)virtualscreen, + xWindow->width,xWindow->height, + 32,xWindow->width*xWindow->pixelsize); + } + + if(!ximage) + return ERR_XI_XIMAGE; + break; + + default: + return ERR_XI_FAILURE; + + } + + if ( (videoaccesstype == VIDEO_XI_STANDARD) || + (videoaccesstype == VIDEO_XI_SHMSTD) ) { +#ifndef WORDS_BIGENDIAN + ximage->byte_order = LSBFirst; + ximage->bitmap_bit_order = LSBFirst; +#else + ximage->byte_order = MSBFirst; + ximage->bitmap_bit_order = MSBFirst; +#endif + + } + return ERR_XI_OK; +} + + + +int ImageDeskX11::destroyImage() { + if(xWindow && xWindow->display && xWindow->window) { + switch(videoaccesstype) { +#ifdef X11_SHARED_MEM + case VIDEO_XI_SHMSTD: + if (shmseginfo) { + XShmDetach(xWindow->display,shmseginfo); + if(ximage) { + XDestroyImage(ximage); + ximage=NULL; + } + if(shmseginfo->shmaddr) { + shmdt(shmseginfo->shmaddr); + shmseginfo->shmaddr=NULL; + } + if(shmseginfo->shmid>=0) + shmctl(shmseginfo->shmid,IPC_RMID,NULL); + + free(shmseginfo); + } + shmseginfo=NULL; + break; + +#endif + case VIDEO_XI_STANDARD: + if(ximage) { + XDestroyImage(ximage); + ximage=NULL; + /* + XDestroyImage function calls frees both the image structure + and the data pointed to by the image structure. + */ + virtualscreen=NULL; + } + break; + + default: + // cout << "no open window to close"<<endl; + break; + } + } + videoaccesstype=VIDEO_XI_NONE; + imageMode=_IMAGE_NONE; + return true; +} + + +bool ImageDeskX11::switchMode(int width, int , bool zoom) +{ + iWidth = xWindow->screenptr->width; + iHeight = xWindow->screenptr->height; + +#ifdef X11_XVIDMODE + iOldMode = -1; + int vm_count,i; + + cout << "Find best matching videomode ..." << endl; + + if (!XF86VidModeGetAllModeLines(xWindow->display,XDefaultScreen(xWindow->display), + &vm_count,&vm_modelines)) { + return false; + } + + int bestMode = -1; + int border, minBorder = INT_MAX; + + for (i = 0; i < vm_count; i++) { + printf("mode %d: %dx%d\n",i, vm_modelines[i]->hdisplay,vm_modelines[i]->vdisplay); + + if (xWindow->screenptr->width == vm_modelines[i]->hdisplay) + iOldMode = i; + + border = vm_modelines[i]->hdisplay - width; + if ((border > 0) && (border < minBorder)) { + bestMode = i; + minBorder = border; + bZoom = false; + } + if (zoom) { + border = vm_modelines[i]->hdisplay - 2 * width; + if ((border > 0) && (border < minBorder)) { + bestMode = i; + minBorder = border; + bZoom = true; + } + } + } + cout << "best mode: " << bestMode << endl; + + iWidth = vm_modelines[bestMode]->hdisplay; + iHeight = vm_modelines[bestMode]->vdisplay; + + if (XF86VidModeSwitchToMode(xWindow->display,XDefaultScreen(xWindow->display), + vm_modelines[bestMode])) { + XF86VidModeSetViewPort(xWindow->display,XDefaultScreen(xWindow->display), 0, 0); + XFlush(xWindow->display); + return true; + } +#endif + return false; +} |