+++ /dev/null
-/*M///////////////////////////////////////////////////////////////////////////////////////
-//
-// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
-//
-// By downloading, copying, installing or using the software you agree to this license.
-// If you do not agree to this license, do not download, install,
-// copy or use the software.
-//
-//
-// Intel License Agreement
-// For Open Source Computer Vision Library
-//
-// Copyright (C) 2000, Intel Corporation, all rights reserved.
-// Third party copyrights are property of their respective owners.
-//
-// Redistribution and use in source and binary forms, with or without modification,
-// are permitted provided that the following conditions are met:
-//
-// * Redistribution's of source code must retain the above copyright notice,
-// this list of conditions and the following disclaimer.
-//
-// * Redistribution's in binary form must reproduce the above copyright notice,
-// this list of conditions and the following disclaimer in the documentation
-// and/or other materials provided with the distribution.
-//
-// * The name of Intel Corporation may not be used to endorse or promote products
-// derived from this software without specific prior written permission.
-//
-// This software is provided by the copyright holders and contributors "as is" and
-// any express or implied warranties, including, but not limited to, the implied
-// warranties of merchantability and fitness for a particular purpose are disclaimed.
-// In no event shall the Intel Corporation or contributors be liable for any direct,
-// indirect, incidental, special, exemplary, or consequential damages
-// (including, but not limited to, procurement of substitute goods or services;
-// loss of use, data, or profits; or business interruption) however caused
-// and on any theory of liability, whether in contract, strict liability,
-// or tort (including negligence or otherwise) arising in any way out of
-// the use of this software, even if advised of the possibility of such damage.
-//
-//M*/
-
-#include "render.h"
-#include "convert.h"
-
-#include <pthread.h>
-#include <stdio.h>
-#include <assert.h>
-#include <stdlib.h>
-#include <string.h>
-
-#define RENDER_FRAMERATE 1
-
-#define Assert(exp) \
- if( !(exp) ) \
- { \
- printf("Assertion: %s %s: %d\n", #exp, __FILE__, __LINE__);\
- assert(exp); \
- }
-
-static void icvvResizeImage( int src_w, int src_h, int src_s, char* src,
- int dst_w, int dst_h, int dst_s, char* dst,
- int depth )
-{
-
- int x, y;
-
- int* x_array = (int*)malloc(sizeof(int) * dst_w);
- int* y_array = (int*)malloc(sizeof(int) * dst_h);
- float x_step = (float)(src_w - 1) / (dst_w - 1);
- float y_step = (float)(src_h - 1) / (dst_h - 1);
- char* _src;
-
- Assert( src );
- Assert( dst );
- Assert( src_w > 0 && src_h > 0 && src_s >= src_w * depth / 8 );
- Assert( dst_w > 0 && dst_h > 0 && dst_s >= dst_w * depth / 8 );
-
- if( src_w == dst_w && src_h == dst_h && src_s == dst_s )
- {
- memcpy( dst, src, src_s * src_h );
- return;
- }
-
-
- for( x = 0; x < dst_w; x++ )
- x_array[x] = (int)(x_step * x + 0.5);
- for( y = 0; y < dst_h; y++ )
- y_array[y] = (int)(y_step * y + 0.5);
-
- Assert(x_array[dst_w - 1] == src_w - 1);
- Assert(y_array[dst_h - 1] == src_h - 1);
-
- switch( depth )
- {
- case 8:
- for( y = 0; y < dst_h; y++, dst += dst_s )
- {
- _src = src + y_array[y] * src_s;
- for( x = 0; x < dst_w; x++ )
- {
- int offset = x_array[x];
- dst[x] = _src[offset];
- }
- }
- break;
- case 16:
- for( y = 0; y < dst_h; y++, dst += dst_s )
- {
- _src = src + y_array[y] * src_s;
- for( x = 0; x < dst_w; x++ )
- {
- int offset = x_array[x];
- ((short*)dst)[x] = ((short*)_src)[offset];
- }
- }
- break;
- case 24:
- for( y = 0; y < dst_h; y++, dst += dst_s )
- {
- _src = src + y_array[y] * src_s;
- for( x = 0; x < dst_w; x++ )
- {
- int offset = x_array[x] * 3;
- dst[x * 3] = _src[offset];
- dst[x * 3 + 1] = _src[offset + 1];
- dst[x * 3 + 2] = _src[offset + 2];
- }
- }
- break;
- case 32:
- for( y = 0; y < dst_h; y++, dst += dst_s )
- {
- _src = src + y_array[y] * src_s;
- for( x = 0; x < dst_w; x++ )
- {
- int offset = x_array[x];
- ((int*)dst)[x] = ((int*)_src)[offset];
- }
- }
- break;
- }
-
- free(x_array);
- free(y_array);
-}
-int icvVideoRenderStart(int cameraid)
-{
- pthread_t thread;
-
- if( !cameras[cameraid].rendered)
- return 0;
-
- if( !cameras[cameraid].window)
- return 0;
-
- if(pthread_create(&thread, NULL, icvVideoRender, (void*)cameraid))
- {
- fprintf(stderr, "icvVideoRenderStart: failed create thread for rendering");
- return 0;
- }
-
- return 1;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-void* icvVideoRender(void* data)
-{
- int cameraid = (int)data;
- CvVideoCamera *const camera = &(cameras[cameraid]);
- Display* display;
- int screen_num;
- GC gc;
- char* display_name = NULL;
- Window window = camera->window;
- XWindowAttributes windowattr;
- Visual* visual;
- int windowdepth;
- XImage* image;
- XShmSegmentInfo xshmseg;
- int width = (camera->renderwidth>0)?camera->renderwidth:camera->videopp.width;
- int height = camera->renderheight?camera->renderheight:camera->videopp.height;
- int picturedepth = camera->videopp.picture.depth;
- int pixelsize;
- XGCValues values;
- IplImage* iplimage;
- time_t start, now;
- int frames = 0;
- float rate = 0;
- Status XShm;
- uchar* imgdata = NULL;
- uchar* tmpbuff = NULL;
-
- pthread_mutex_lock(&(camera->capturestatemutex));
- if(camera->capturestate != CAPTURING)
- {
- pthread_mutex_unlock(&(camera->capturestatemutex));
- pthread_exit( NULL );
- }
- camera->renderstate=1;
- pthread_cond_signal(&(camera->capturestatecond));
- pthread_mutex_unlock(&(camera->capturestatemutex));
- XInitThreads();
-
- if ( (display=XOpenDisplay(display_name)) == NULL )
-
- {
- fprintf( stderr, "cvVideo: cannot connect to X server %s\n",
- XDisplayName(display_name));
- pthread_exit( NULL );
- }
-
- screen_num = DefaultScreen(display);
-
- if (XGetWindowAttributes(display, window,
- &windowattr) == 0)
- {
- fprintf(stderr, "icvVideoRender: failed to get window attributes.\n" );
- pthread_exit(NULL);
- }
-
- if(windowattr.map_state == IsUnmapped)
- {
- fprintf(stderr, "icvVideoRender: window is not mapped \n" );
- pthread_exit(NULL);
- }
-
- windowdepth = windowattr.depth;
- visual = windowattr.visual;
-
- pixelsize = icvVideoWindowPixelsize(windowdepth);
-
- XShm = XShmQueryExtension(display);
- if(XShm)
- {
- image = XShmCreateImage(display, visual, windowdepth, ZPixmap, NULL,
- &xshmseg, width, height );
-
- assert(image);
-
- xshmseg.shmid = shmget (IPC_PRIVATE,
- width*height*pixelsize, IPC_CREAT|0777);
-
- assert(xshmseg.shmid != -1);
- xshmseg.shmaddr = image->data=(char*)shmat (xshmseg.shmid, 0, 0) ;
-
- xshmseg.readOnly = False;
-
- XShmAttach (display, &xshmseg);
- }
- else
- {
- imgdata = (uchar*)malloc(width*height*icvVideoWindowPixelsize(windowdepth)) ;
- image = XCreateImage(display, visual, windowdepth, ZPixmap, 0,
- (char*)imgdata, width,
- height, 8,
- icvVideoWindowPixelsize(windowdepth)
- *width);
-
- assert(image);
- XInitImage(image);
- }
-
- gc = XCreateGC(display,window,0, &values );
-#ifdef RENDER_FRAMERATE
- start = time(NULL);
-#endif
-
- pthread_mutex_lock(&(camera->capturestatemutex));
- while((camera->capturestate == CAPTURING) && (camera->rendered))
- {
- pthread_mutex_unlock(&(camera->capturestatemutex));
- pthread_mutex_lock(&(camera->updatedmutex));
- while(camera->updated == 0)
- pthread_cond_wait(&(camera->updatedcond), &(camera->updatedmutex));
- camera->updated = 0;
- pthread_mutex_unlock(&(camera->updatedmutex));
- if(cvcamGetProperty(cameraid, "raw_image",&iplimage ))
- {
- assert(image->data);
- if(camera->callback != NULL)
- camera->callback(iplimage);
- if((width==camera->videopp.width)&&
- (height==camera->videopp.height))
- {
- icvvConvert(width, height, width*picturedepth/8, picturedepth,
- iplimage->imageData, width*pixelsize, pixelsize*8, image->data
- );
- cvReleaseImage(&iplimage);
- }
- else
- {
- tmpbuff = (uchar*)malloc(camera->videopp.width*camera->videopp.height*
- pixelsize) ;
-
- icvvConvert(camera->videopp.width, camera->videopp.height,
- camera->videopp.width*picturedepth/8, picturedepth,
- iplimage->imageData, camera->videopp.width*pixelsize,
- pixelsize*8, (char*)tmpbuff);
- cvReleaseImage(&iplimage);
-
- icvvResizeImage(camera->videopp.width,
- camera->videopp.height,
- (camera->videopp.width)*pixelsize, (char*)tmpbuff,
- width, height,width*pixelsize, image->data, pixelsize*8);
-
- free(tmpbuff);
-
- }
-
- //fprintf(stdout, "cvVideoRendering:image converted!!!!\n");
-
- if(XShm)
- {
- XShmPutImage(display, window, gc,
- image,0,0,0,0, width,
- height, False);
- }
- else
- {
- XPutImage(display, window, gc,
- image,0,0,0,0, width,
- height);
- }
-
- XSync(display, False);
-#ifdef RENDER_FRAMERATE
- now = time(NULL);
- frames++;
- if (now-start)
- rate = frames/(float)(now-start);
- if((frames%30) == 0)
- fprintf(stdout, "camera %d fps = %f\n", cameraid, rate);
-#endif
- }//if(cvcamGetProperty(CAMERA, "raw_image",&image ))
-
- // stop here if we're paused
- pthread_mutex_lock(&(camera->pausemutex));
- pthread_mutex_unlock(&(camera->pausemutex));
- pthread_mutex_lock(&(camera->capturestatemutex));
- }//while (camera->state == CAPTURING && camera->rendered)
- pthread_mutex_unlock(&(camera->capturestatemutex));
-
- pthread_mutex_lock(&(camera->capturestatemutex));
-#if 0
- if(camera->state != CAPTURING) {
- // we ended because the camera is not capturing anymore
- while (camera->capturestate != FINISHED )
- {
- pthread_cond_wait(&(camera->capturestatecond),&(camera->capturestatemutex));
- }
- }
-#endif
- camera->renderstate=0;
- pthread_cond_signal(&(camera->capturestatecond));
- pthread_mutex_unlock(&(camera->capturestatemutex));
-
- XShmDetach (display, &xshmseg);
- XDestroyImage (image);
- XFreeGC(display,gc);
- shmdt (xshmseg.shmaddr);
- shmctl (xshmseg.shmid, IPC_RMID, 0);
- if(imgdata)
- free(imgdata);
- pthread_exit(NULL);
-}
-
-////////////////////////////////////////////////////////////////////////////////
-int icvVideoWindowPixelsize(int depth)
-{
- switch (depth)
- {
- case 32:
- return 4;
-
- case 24:
- return 4;
-
- case 16:
- return 2;
-
- case 8:
- return 1;
-
- default:
- return 0;
- }
- return 0;
-}
-
-////////////////////////////////////////////////////////////////////////////////
projects / opencv / blobdiff