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Sourcecode: libgphoto2 version File versions

library.c

/* library.c
 *
 * Copyright (C) 2005 Theodore Kilgore <kilgota@auburn.edu>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details. 
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#include <config.h>

#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#include <bayer.h>
#include <gamma.h>

#include <gphoto2/gphoto2.h>


#ifdef ENABLE_NLS
#  include <libintl.h>
#  undef _
#  define _(String) dgettext (PACKAGE, String)
#  ifdef gettext_noop
#    define N_(String) gettext_noop (String)
#  else
#    define N_(String) (String)
#  endif
#else
#  define _(String) (String)
#  define N_(String) (String)
#  define ngettext(String1,String2,Count) ((Count==1)?String1:String2)
#endif

#include <gphoto2/gphoto2-port.h>
#include "sonix.h"
#include "sakar-avi-header.h"
#define GP_MODULE "sonix"

static const struct {
      char *name;
      CameraDriverStatus status;
      unsigned short idVendor;
      unsigned short idProduct;
} models[] = {
        {"Vivitar Vivicam3350B", GP_DRIVER_STATUS_EXPERIMENTAL, 0x0c45, 0x800a},
        {"DC31VC", GP_DRIVER_STATUS_EXPERIMENTAL, 0x0c45, 0x8000},      
        {"Sakar Keychain Digital 11199", GP_DRIVER_STATUS_EXPERIMENTAL, 0x0c45, 0x8003},        
      {NULL,0,0,0}
};

int
camera_id (CameraText *id)
{
      strcpy (id->text, "Vivitar ViviCam3350B");
      return GP_OK;
}

int
camera_abilities (CameraAbilitiesList *list)
{
      int i;    
      CameraAbilities a;

      for (i = 0; models[i].name; i++) {
            memset (&a, 0, sizeof(a));
                  strcpy (a.model, models[i].name);
                  a.status = models[i].status;
                  a.port   = GP_PORT_USB;
                  a.speed[0] = 0;
                  a.usb_vendor = models[i].idVendor;
                  a.usb_product= models[i].idProduct;
                  if (a.status == GP_DRIVER_STATUS_EXPERIMENTAL)
                  a.operations = GP_OPERATION_NONE;
            else
                  a.operations = GP_OPERATION_CAPTURE_IMAGE;
                        a.folder_operations = GP_FOLDER_OPERATION_DELETE_ALL;
                        a.file_operations   = GP_FILE_OPERATION_DELETE|
                              GP_FILE_OPERATION_PREVIEW;
                        gp_abilities_list_append (list, a);
      }
      return GP_OK;
}

static int
camera_summary (Camera *camera, CameraText *summary, GPContext *context)
{
      int ret = 0;
      if(!camera->pl->sonix_init_done) 
            ret = sonix_init(camera->port, camera->pl);
      if ( ret != GP_OK) {
            free(camera->pl);
            return ret;
      }     
      if (!camera->pl->num_pics) 
            sonix_exit(camera->port);
        sprintf (summary->text,ngettext(
            "Sonix camera.\nThere is %i photo in it.\n",
            "Sonix camera.\nThere are %i photos in it.\n",
            camera->pl->num_pics
      ), camera->pl->num_pics);
      return GP_OK;
}

static int camera_manual (Camera *camera, CameraText *manual, GPContext *context) 
{
      strcpy(manual->text, 
      _(
      "This driver supports some cameras with Sonix sn9c2028 chip.\n"
      "The following operations are supported:\n"
      "   - thumbnails for a GUI frontend\n"
      "   - full images in PPM format\n"
      "   - delete all images\n"
      "   - delete last image (may not work on all Sonix cameras)\n"
      "   - image capture to camera (           ditto       )\n"
      "If present on the camera, video clip frames are downloaded \n"
      "as consecutive still photos or as AVI files, depending on model.\n"
      "Thumbnails for AVIs are still photos made from the first frame.\n" 
      "A single image cannot be deleted unless it is the last one.\n"
      )); 

      return (GP_OK);
}

static int
camera_about (Camera *camera, CameraText *about, GPContext *context)
{
      strcpy (about->text, _("Sonix camera library\n"
                      "Theodore Kilgore <kilgota@auburn.edu>\n"));
      return GP_OK;
}

/*************** File and Downloading Functions *******************/

static int
file_list_func (CameraFilesystem *fs, const char *folder, CameraList *list,
                void *data, GPContext *context)
{
        Camera *camera = data; 
      int i = 0;
      char name[16];
      int(avitype);
      int ret = 0;
      if(!camera->pl->sonix_init_done) 
            ret = sonix_init(camera->port, camera->pl);
      if ( ret != GP_OK) {
            free(camera->pl);
            return ret;
      }     
      if(!camera->pl->num_pics) {
            sonix_exit(camera->port);
            return GP_OK;
      }
      for (i=0; i<camera->pl->num_pics; i++) {
            avitype = camera->pl->size_code[i];
            if (avitype == 9) {
                  sprintf (name, "sonix%03i.avi", i+1);
                  avitype = 0;
            } else 
                  sprintf (name, "sonix%03i.ppm", i+1);
            gp_list_append (list, name, NULL);
      }


      return GP_OK;}

static int
get_file_func (CameraFilesystem *fs, const char *folder, const char *filename,
             CameraFileType type, CameraFile *file, void *user_data,
             GPContext *context)
{
      Camera *camera = user_data; 
      int w, h = 0, b = 0, i, j, k;
      unsigned char *data = NULL; 
      unsigned char  *ppm, *ptr, *avi=NULL;
      unsigned char *p_data = NULL, *temp_line=NULL;
      unsigned char temp;
      unsigned char gtable[256];
      unsigned int num_frames;
      unsigned long int size = 0, frame_size = 0;
      unsigned int avitype = 0;
      char name[16];
      int ret = 0;
      
      GP_DEBUG ("Downloading pictures!\n");
      if(!camera->pl->sonix_init_done) 
            ret = sonix_init(camera->port, camera->pl);
      if ( ret != GP_OK) {
            free(camera->pl);
            return ret;
      }     

      if(!camera->pl->num_pics) {
            sonix_exit(camera->port);
            return GP_OK;
      }     

      /* Get the number of the photo on the camera */
      k = gp_filesystem_number (camera->fs, "/", filename, context); 

      if(type == GP_FILE_TYPE_EXIF) return GP_ERROR_FILE_EXISTS;

      i = camera->pl->size_code[k];
      switch (i) { 
      case 0: w=352; h = 288; break;      /* always uncompressed? */
      case 9: avitype = 1;          /* multiframe, always uncompressed? */
      case 1: w=176; h = 144; break;      /* always uncompressed? */
      case 2: w=640; h = 480; break;      /* always compressed?   */
      case 3: w=320; h = 240; break;      /* always compressed?   */
      default:  GP_DEBUG ("Size code unknown\n"); 
            
          return (GP_ERROR_NOT_SUPPORTED);
      }         

      GP_DEBUG( "avitype is %d\n", avitype);
      GP_DEBUG ("height of picture %i is %i\n", k+1,h);           
      b =sonix_read_data_size (camera, camera->port, data, k);
      if(b%0x40) 
            b = b-(b%0x40) + 0x40;

      data = malloc (b+64);
      if (!data) return GP_ERROR_NO_MEMORY;
      memset (data, 0, sizeof(data));
      gp_port_read(camera->port, data, b);
      
      switch(type) {
      case GP_FILE_TYPE_NORMAL:
            /* Only AVI files need separate treatment */
            if (avitype) {
                  /* "Photo" contains multiple frames. Believe it or not, 
                   * the camera does not tell us how many frames are 
                   * present. 
                   */
                  num_frames = b/(w*h+0x40);
                  frame_size = w*h;
                  size = num_frames*(3*frame_size+ 8) + 224;
                  temp_line = malloc(w);
                  if(!temp_line) {free(temp_line); return GP_ERROR_NO_MEMORY;}
                  avi = malloc(size);
                  if (!avi) {free(avi); return GP_ERROR_NO_MEMORY;}
                  memset(avi, 0, size);
                  memcpy (avi,SakarAviHeader,224);
                  avi[0x04] = (size -4)&0xff;
                  avi[0x05] = ((size -4)&0xff00) >> 8;
                  avi[0x06] = ((size -4)&0xff0000) >> 16;
                  avi[0x07] = ((size -4)&0xff000000) >> 24;
                  avi[0x40] = w&0xff;
                  avi[0x44] = h&0xff;
                  avi[0xb0] = w&0xff;
                  avi[0xb4] = h&0xff;
                  avi[0x30] = num_frames&0xff;
                  avi[0x8c] = num_frames&0xff;
                  ptr=avi;
                  ptr += 224;
                  for (i=0; i < num_frames; i++) {
                        memcpy(ptr,SakarAviFrameHeader,8);
                        ptr[4] = (3*frame_size)&0xff;
                        ptr[5] = ((3*frame_size)&0xff00) >> 8;
                        ptr[6] = ((3*frame_size)&0xff0000) >> 16;
                        ptr +=8;
                        /* I don't see why this is needed :( 
                         * but in AVI files it seems to be 
                         * _assumed_ that the frame is upside down.
                         * So we take the frame, which was right-
                         * side-up, and flip it so the AVI viewer can
                         *flip it back again! Bad. Bad. Bad.
                         */
                        for (j=0; j < h/2; j++) {
                              memcpy (temp_line, data+8+j*w,w);
                              memcpy (data+8+j*w, data+8+(h-j-1)*w,w);
                              memcpy (data+8+(h-j-1)*w,temp_line,w);

                        }
                        gp_gamma_fill_table(gtable, .65);
                        gp_gamma_correct_single(gtable, ptr, w * h);
                        gp_bayer_decode(data + 8, w, h, ptr, 
                                              BAYER_TILE_GRBG);
                        data += frame_size+0x40;
                        ptr += 3*frame_size;
                  }
                  gp_file_set_mime_type (file, GP_MIME_AVI);
                  gp_file_set_name (file, name); 
                  gp_file_set_data_and_size (file, avi, size);
                  avitype = 0;
                  return GP_OK;           
            } 

      case GP_FILE_TYPE_PREVIEW:
            if (k == camera->pl->num_pics - 1) {
                  camera->pl->sonix_init_done = 1;
                  sonix_exit(camera->port);
            }
            /* For an AVI file, we make a PPM thumbnail of the 
             * first frame. Otherwise, still photos are processed 
             * here, and also the thumbnails for them. 
             */

            p_data = malloc (w * h);
            if (!p_data) {free (data); return GP_ERROR_NO_MEMORY;}
            memset (p_data, 0, w * h);


            ppm = malloc (w * h * 3 + 256); /* room for data + header */
            if (!ppm) { return GP_ERROR_NO_MEMORY; }
            sprintf (ppm,
                  "P6\n"
                  "# CREATOR: gphoto2, SONIX library\n"
                  "%d %d\n"
                  "255\n", w, h);
            ptr = ppm + strlen (ppm);
            size = strlen (ppm) + (w * h * 3);

            if (b < w*h) { /* Surely, this indicates compression in use */
                  sonix_decode (p_data, data, w, h);
                  /* Compressed images are upside down. We fix. */
                  for (i=0; i< w*h /2 ; ++i){
                        temp = p_data[i];
                        p_data[i] = p_data[w*h - 1 - i];
                        p_data[w*h - 1 - i] = temp;
                  }
                  gp_bayer_decode (p_data, w , h , ptr, BAYER_TILE_GBRG);
            } else {
                  memcpy (p_data, data+8, w*h);
                  gp_bayer_decode (p_data, w , h , ptr, BAYER_TILE_RGGB);
            }
            gp_gamma_fill_table(gtable, .65);
            gp_gamma_correct_single(gtable, ptr, w * h);
            gp_file_set_mime_type (file, GP_MIME_PPM);
            gp_file_set_name (file, filename); 
            gp_file_set_data_and_size (file, ppm, size);

            free (p_data);
            free (data);
            
            return GP_OK;

      case GP_FILE_TYPE_RAW: 
            gp_file_set_mime_type(file, GP_MIME_RAW);
            gp_file_set_name(file, filename);
            gp_file_append( file, data, b);
            free(data);
            GP_DEBUG("b= 0x%x = %i\n", b, b);
            return GP_OK;

      default:
            free(data);
            return      GP_ERROR_NOT_SUPPORTED;
      }     
        return GP_OK;
}

static int
delete_all_func (CameraFilesystem *fs, const char *folder, void *data, 
            GPContext *context) 
{
      Camera *camera = data;
      int ret = 0;
      if(!camera->pl->sonix_init_done) 
            ret = sonix_init(camera->port, camera->pl);
      if ( ret != GP_OK) {
            free(camera->pl);
            return ret;
      }     

      sonix_delete_all_pics (camera->port);
      return GP_OK;
}

static int
delete_file_func (CameraFilesystem *fs, const char *folder,
              const char *filename, void *data, GPContext *context)
{
      Camera *camera = data;
      int k;
      int ret = 0;
      if(!camera->pl->sonix_init_done) 
            ret = sonix_init(camera->port, camera->pl);
      if ( ret != GP_OK) {
            free(camera->pl);
            return ret;
      }     
      k = gp_filesystem_number (camera->fs, "/", filename, context);     
      if (k+1 != camera->pl->num_pics)
            return GP_ERROR_NOT_SUPPORTED;
      else  
          sonix_delete_last (camera->port);
          camera->pl->num_pics -= 1;
      return GP_OK;
}


static int
camera_capture (Camera *camera, CameraCaptureType type, CameraFilePath *path,
            GPContext *context)
{
      int ret = 0;
      if(!camera->pl->sonix_init_done) 
            ret = sonix_init(camera->port, camera->pl);
      if ( ret != GP_OK) {
            free(camera->pl);
            return ret;
      }     

      if ((camera->pl->fwversion == 0x0a))
            return GP_ERROR_NOT_SUPPORTED;
      if (camera->pl->full)
            return GP_ERROR_NO_MEMORY;
      sonix_capture_image(camera->port);  
      return GP_OK;
}


/*************** Exit and Initialization Functions ******************/

static int
camera_exit (Camera *camera, GPContext *context)
{
      GP_DEBUG ("Sonix camera_exit");
      sonix_exit(camera->port);
      if (camera->pl) {
            free (camera->pl);
            camera->pl = NULL;
      }
      return GP_OK;
}

static CameraFilesystemFuncs fsfuncs = {
      .file_list_func = file_list_func,
      .folder_list_func = NULL,
      .get_info_func = NULL,
      .get_file_func = get_file_func,
      .del_file_func = delete_file_func,
      .put_file_func = NULL, 
      .delete_all_func = delete_all_func,
};

int
camera_init(Camera *camera, GPContext *context)
{
      GPPortSettings settings;
      int ret = 0;

      /* First, set up all the function pointers */
        camera->functions->capture              = camera_capture;
        camera->functions->manual   = camera_manual;
      camera->functions->summary      = camera_summary;
      camera->functions->about        = camera_about;
      camera->functions->exit     = camera_exit;
   
      GP_DEBUG ("Initializing the camera\n");
      ret = gp_port_get_settings(camera->port,&settings);
      if (ret < 0) return ret; 

      switch (camera->port->type) {
            case GP_PORT_SERIAL:
                  return ( GP_ERROR );
            case GP_PORT_USB:
                  settings.usb.config = 1;
                  settings.usb.altsetting = 0;
                  settings.usb.interface = 0;
                  settings.usb.inep = 0x82;
                  settings.usb.outep =0x05;
                  break;
            default:
                  return ( GP_ERROR );
      }

      ret = gp_port_set_settings(camera->port,settings);
      if (ret < 0) return ret; 

      GP_DEBUG("interface = %i\n", settings.usb.interface);
      GP_DEBUG("inep = %x\n", settings.usb.inep);     
      GP_DEBUG("outep = %x\n", settings.usb.outep);

      /* Now, tell the filesystem where to get lists, files and info */
      gp_filesystem_set_funcs (camera->fs, &fsfuncs, camera);

      camera->pl = malloc (sizeof (CameraPrivateLibrary));
      if (!camera->pl) return GP_ERROR_NO_MEMORY;
      memset (camera->pl, 0, sizeof (CameraPrivateLibrary));
      camera->pl->num_pics = 0;
      camera->pl->full = 1;
      camera->pl->avitype = 0;
      camera->pl->sonix_init_done = 0;
      /* Connect to the camera only if something is actually being done,
       * because otherwise the Sakar Digital Keychain camera is put into 
       * some kind of active mode when gtkam is run, and will not leave 
       * this mode even after gtkam is exited. 
       */
      
      return GP_OK;
}

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