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C++ MEMCOPY函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中MEMCOPY函数的典型用法代码示例。如果您正苦于以下问题:C++ MEMCOPY函数的具体用法?C++ MEMCOPY怎么用?C++ MEMCOPY使用的例子?那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了MEMCOPY函数的20个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: output_data

output_data (j_decompress_ptr cinfo, JSAMPIMAGE output_buf)
{
  j_lossless_d_ptr losslsd = (j_lossless_d_ptr) cinfo->codec;
  d_diff_ptr diff = (d_diff_ptr) losslsd->diff_private;
  JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1;
  int ci, samp_rows, row;
  JSAMPARRAY buffer;
  jpeg_component_info *compptr;

  /* Force some input to be done if we are getting ahead of the input. */
  while (cinfo->input_scan_number < cinfo->output_scan_number ||
	 (cinfo->input_scan_number == cinfo->output_scan_number &&
	  cinfo->input_iMCU_row <= cinfo->output_iMCU_row)) {
    if ((*cinfo->inputctl->consume_input)(cinfo) == JPEG_SUSPENDED)
      return JPEG_SUSPENDED;
  }

  /* OK, output from the virtual arrays. */
  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
       ci++, compptr++) {
    /* Align the virtual buffer for this component. */
    buffer = (*cinfo->mem->access_virt_sarray)
      ((j_common_ptr) cinfo, diff->whole_image[ci],
       cinfo->output_iMCU_row * compptr->v_samp_factor,
       (JDIMENSION) compptr->v_samp_factor, FALSE);

    if (cinfo->output_iMCU_row < last_iMCU_row)
      samp_rows = compptr->v_samp_factor;
    else {
      /* NB: can't use last_row_height here; it is input-side-dependent! */
      samp_rows = (int) (compptr->height_in_data_units % compptr->v_samp_factor);
      if (samp_rows == 0) samp_rows = compptr->v_samp_factor;
    }

    for (row = 0; row < samp_rows; row++) {
      MEMCOPY(output_buf[ci][row], buffer[row],
	      compptr->width_in_data_units * SIZEOF(JSAMPLE));
    }
  }

  if (++(cinfo->output_iMCU_row) < cinfo->total_iMCU_rows)
    return JPEG_ROW_COMPLETED;
  return JPEG_SCAN_COMPLETED;
}
开发者ID:Ithamar,项目名称:cosmoe,代码行数:44,代码来源:jddiffct.c


示例2: vecPushBack

int vecPushBack(S_Vector *pVec, void *pElem)
{
    static const int blockSize = 512;

    IZG_ASSERT(pVec && pElem);

    if( pVec->size >= pVec->reserved )
    {
        char *p = (char *)realloc(pVec->data, (pVec->size + blockSize) * pVec->elemSize);
        IZG_CHECK(p, "Cannot allocate enough memory");
        pVec->data = p;
        pVec->reserved = pVec->size + blockSize;
    }

    MEMCOPY(pVec->data + pVec->size * pVec->elemSize, pElem, pVec->elemSize);
    ++pVec->size;

    return (pVec->size - 1);
}
开发者ID:martinqo99,项目名称:school-projects,代码行数:19,代码来源:vector.c


示例3: rr_canonize_nsec3param

static void
rr_canonize_nsec3param(zdb_packed_ttlrdata* rr, ptr_vector* v)
{
    while(rr != NULL)
    {
        zdb_canonized_packed_ttlrdata* c_rr;

        u32 c_rr_size = sizeof (zdb_canonized_packed_ttlrdata) - 1 + ZDB_PACKEDRECORD_PTR_RDATASIZE(rr);
        MALLOC_OR_DIE(zdb_canonized_packed_ttlrdata*, c_rr, c_rr_size, RR_CANONIZE_NOP_TAG);

        ZDB_PACKEDRECORD_PTR_RDATASIZE(c_rr) = ZDB_PACKEDRECORD_PTR_RDATASIZE(rr);
        c_rr->rdata_canonized_size = htons(ZDB_PACKEDRECORD_PTR_RDATASIZE(rr));
        MEMCOPY(&c_rr->rdata_start[0], ZDB_PACKEDRECORD_PTR_RDATAPTR(rr), ZDB_PACKEDRECORD_PTR_RDATASIZE(rr));
        c_rr->rdata_start[1] = 0; /* The signed NSEC3PARAM has its flags to 0 */
        ptr_vector_append(v, c_rr);

        rr = rr->next;
    }
}
开发者ID:koodaamo,项目名称:yadifa,代码行数:19,代码来源:rr_canonize.c


示例4: emAfPluginCommsHubFunctionTunnelCreate

// This should be called after CBKE.
bool emAfPluginCommsHubFunctionTunnelCreate(EmberEUI64 remoteDeviceId,
                                               uint8_t remoteEndpoint)
{
  uint8_t tunnelIndex;
  emberAfDebugPrint("CHF: TunnelCreate ");
  emberAfDebugDebugExec(emberAfPrintBigEndianEui64(remoteDeviceId));
  emberAfDebugPrintln(" 0x%x", remoteEndpoint);

  // We only support one tunnel to a given remote device/endpoint so if we
  // already have a tunnel lets work with it.
  tunnelIndex = findTunnelByDeviceId(remoteDeviceId);
  if (tunnelIndex != EM_AF_PLUGIN_COMMS_HUB_FUNCTION_NULL_TUNNEL_INDEX) {
    if (tunnels[tunnelIndex].state == CLOSED_TUNNEL) {
      return requestTunnel(tunnelIndex);
    }
    return true;
  }

  // Find a slot in the tunnels table for the new tunnel
  tunnelIndex = findUnusedTunnel();
  if (tunnelIndex != EM_AF_PLUGIN_COMMS_HUB_FUNCTION_NULL_TUNNEL_INDEX) {
    MEMCOPY(tunnels[tunnelIndex].remoteDeviceId, remoteDeviceId, EUI64_SIZE);
    tunnels[tunnelIndex].remoteNodeId = emberLookupNodeIdByEui64(remoteDeviceId);
    tunnels[tunnelIndex].remoteEndpoint = remoteEndpoint;
    tunnels[tunnelIndex].type = CLIENT_TUNNEL;
    tunnels[tunnelIndex].state = CLOSED_TUNNEL;
    tunnels[tunnelIndex].tunnelId = 0xFF;
    tunnels[tunnelIndex].timeoutMSec = 0;
    return requestTunnel(tunnelIndex);
  }

  // This is a misconfiguration or a bug in the code calling this API. Either
  // the tunnel client plugin limit is set too low for the number of tunnels
  // required or the code that is calling this function is in error.  Either way,
  // we'll print the error and return false indicating that the tunnel was
  // not created.
  emberAfPluginCommsHubFunctionPrintln("%p%p%p",
                                       "Error: ",
                                       "Tunnel Create failed: ",
                                       "Too many tunnels");
  return false;
}
开发者ID:taidalab,项目名称:ZigBeeember570,代码行数:43,代码来源:tunnel-manager.c


示例5: create_context_buffer

create_context_buffer( j_compress_ptr cinfo )
{
	my_prep_ptr prep = ( my_prep_ptr ) cinfo->prep;
	int rgroup_height = cinfo->max_v_samp_factor;
	int ci, i;
	jpeg_component_info *compptr;
	JSAMPARRAY true_buffer, fake_buffer;
	
	/* Grab enough space for fake row pointers for all the components;
	 * we need five row groups' worth of pointers for each component.
	 */
	fake_buffer = ( JSAMPARRAY )
				  ( *cinfo->mem->alloc_small )( ( j_common_ptr ) cinfo, JPOOL_IMAGE,
						  ( cinfo->num_components * 5 * rgroup_height ) *
						  SIZEOF( JSAMPROW ) );
						  
	for( ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
			ci++, compptr++ )
	{
		/* Allocate the actual buffer space (3 row groups) for this component.
		 * We make the buffer wide enough to allow the downsampler to edge-expand
		 * horizontally within the buffer, if it so chooses.
		 */
		true_buffer = ( *cinfo->mem->alloc_sarray )
					  ( ( j_common_ptr ) cinfo, JPOOL_IMAGE,
						( JDIMENSION )( ( ( long ) compptr->width_in_blocks *
										  cinfo->min_DCT_h_scaled_size *
										  cinfo->max_h_samp_factor ) / compptr->h_samp_factor ),
						( JDIMENSION )( 3 * rgroup_height ) );
		/* Copy true buffer row pointers into the middle of the fake row array */
		MEMCOPY( fake_buffer + rgroup_height, true_buffer,
				 3 * rgroup_height * SIZEOF( JSAMPROW ) );
		/* Fill in the above and below wraparound pointers */
		for( i = 0; i < rgroup_height; i++ )
		{
			fake_buffer[i] = true_buffer[2 * rgroup_height + i];
			fake_buffer[4 * rgroup_height + i] = true_buffer[i];
		}
		prep->color_buf[ci] = fake_buffer + rgroup_height;
		fake_buffer += 5 * rgroup_height; /* point to space for next component */
	}
}
开发者ID:revelator,项目名称:MHDoom,代码行数:42,代码来源:jcprepct.cpp


示例6: copy_pixel_rows

copy_pixel_rows(j_decompress_ptr cinfo, djpeg_dest_ptr dinfo,
                JDIMENSION rows_supplied)
{
  ppm_dest_ptr dest = (ppm_dest_ptr)dinfo;
  register char *bufferptr;
  register JSAMPROW ptr;
#if BITS_IN_JSAMPLE != 8 || (!defined(HAVE_UNSIGNED_CHAR) && !defined(__CHAR_UNSIGNED__))
  register JDIMENSION col;
#endif

  ptr = dest->pub.buffer[0];
  bufferptr = dest->iobuffer;
#if BITS_IN_JSAMPLE == 8 && (defined(HAVE_UNSIGNED_CHAR) || defined(__CHAR_UNSIGNED__))
  MEMCOPY(bufferptr, ptr, dest->samples_per_row);
#else
  for (col = dest->samples_per_row; col > 0; col--) {
    PUTPPMSAMPLE(bufferptr, GETJSAMPLE(*ptr++));
  }
#endif
  (void)JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width);
}
开发者ID:GerbilSoft,项目名称:rom-properties,代码行数:21,代码来源:wrppm.c


示例7: rr_canonize_nop

static void
rr_canonize_nop(zdb_packed_ttlrdata* rr, ptr_vector* v)
{
    while(rr != NULL)
    {
        zdb_canonized_packed_ttlrdata* c_rr;

        u32 c_rr_size = sizeof (zdb_canonized_packed_ttlrdata) - 1 + ZDB_PACKEDRECORD_PTR_RDATASIZE(rr);
        MALLOC_OR_DIE(zdb_canonized_packed_ttlrdata*, c_rr, c_rr_size, RR_CANONIZE_NOP_TAG);

        ZDB_PACKEDRECORD_PTR_RDATASIZE(c_rr) = ZDB_PACKEDRECORD_PTR_RDATASIZE(rr);
        c_rr->rdata_canonized_size = htons(ZDB_PACKEDRECORD_PTR_RDATASIZE(rr));
        /** @todo CHECK: If we don't lo-case anymore maybe I could grab some
         *        more cycles here.  Not for the A-records on a 64bits arch,
         *        but for any case where the rdata is (much) bigger than 8 bytes
         */
        MEMCOPY(&c_rr->rdata_start[0], ZDB_PACKEDRECORD_PTR_RDATAPTR(rr), ZDB_PACKEDRECORD_PTR_RDATASIZE(rr));
        ptr_vector_append(v, c_rr);

        rr = rr->next;
    }
}
开发者ID:koodaamo,项目名称:yadifa,代码行数:22,代码来源:rr_canonize.c


示例8: LUSOL_ftran

int LUSOL_ftran(LUSOLrec *LUSOL, REAL b[], int NZidx[], MYBOOL prepareupdate)
{
  int  inform;
  REAL *vector;

  if(prepareupdate)
    vector = LUSOL->vLU6L;
  else
    vector = LUSOL->w;

  /* Copy RHS vector, but make adjustment for offset since this
     can create a memory error when the calling program uses
     a 0-base vector offset back to comply with LUSOL. */
  MEMCOPY(vector+1, b+1, LUSOL->n);
  if (vector != NULL)
    vector[0] = 0;

  LU6SOL(LUSOL, LUSOL_SOLVE_Aw_v, vector, b, NZidx, &inform);
  LUSOL->luparm[LUSOL_IP_FTRANCOUNT]++;

  return(inform);
}
开发者ID:SimonRit,项目名称:RTK,代码行数:22,代码来源:lusol.c


示例9: ptr_vector_resize

void
ptr_vector_resize(ptr_vector*v, s32 newsize)
{
    void** data;

    zassert(newsize >= v->offset + 1);

    /* Only the data up to v->offset (included) is relevant */
    MALLOC_OR_DIE(void**, data, newsize * sizeof (void*), PTR_VECTOR_TAG);
    MEMCOPY(data, v->data, (v->offset + 1) * sizeof (void*));

#ifndef NDEBUG
    if(v->data != NULL)
    {
        memset(v->data, 0xff, v->size * sizeof (void*));
    }
#endif

    free(v->data);
    v->data = data;
    v->size = newsize;
}
开发者ID:koodaamo,项目名称:yadifa,代码行数:22,代码来源:ptr_vector.c


示例10: vorbis_read

size_t vorbis_read(void *ptr, size_t byteSize, size_t sizeToRead, void *datasource)
{
	size_t spaceToEOF;
	size_t actualSizeToRead;
	sOggFile *vorbisData;

	vorbisData = (sOggFile *)datasource;

	spaceToEOF = static_cast<size_t>(vorbisData->dataSize - vorbisData->dataRead);
	if ((sizeToRead*byteSize) < spaceToEOF)
		actualSizeToRead = (sizeToRead*byteSize);
	else
		actualSizeToRead = spaceToEOF;

	if (actualSizeToRead)
	{
		MEMCOPY(ptr, (char*)vorbisData->dataPtr + vorbisData->dataRead, actualSizeToRead);
		vorbisData->dataRead += (actualSizeToRead);
	}

	return actualSizeToRead;
}
开发者ID:fungos,项目名称:seed1,代码行数:22,代码来源:vorbis_util.cpp


示例11: latch_quant_tables

latch_quant_tables(j_decompress_ptr cinfo)
{
	int ci, qtblno;
	jpeg_component_info* compptr;
	JQUANT_TBL* qtbl;

	for (ci = 0; ci < cinfo->comps_in_scan; ci++)
	{
		compptr = cinfo->cur_comp_info[ci];
		/* No work if we already saved Q-table for this component */
		if (compptr->quant_table != nullptr) continue;
		/* Make sure specified quantization table is present */
		qtblno = compptr->quant_tbl_no;
		if (qtblno < 0 || qtblno >= NUM_QUANT_TBLS ||
			cinfo->quant_tbl_ptrs[qtblno] == nullptr)
			ERREXIT1(cinfo, JERR_NO_QUANT_TABLE, qtblno);
		/* OK, save away the quantization table */
		qtbl = (JQUANT_TBL*)(*cinfo->mem->alloc_small)(
			(j_common_ptr)cinfo, JPOOL_IMAGE, SIZEOF(JQUANT_TBL));
		MEMCOPY(qtbl, cinfo->quant_tbl_ptrs[qtblno], SIZEOF(JQUANT_TBL));
		compptr->quant_table = qtbl;
	}
}
开发者ID:Triocrossing,项目名称:mrpt,代码行数:23,代码来源:jdinput.cpp


示例12: emberSendUdp

EmberStatus emberSendUdp(uint8_t options,
                         const uint8_t *destination,
                         uint8_t hopLimit,
                         uint16_t sourcePort,
                         uint16_t destinationPort,
                         uint8_t *payload,
                         uint16_t payloadLength)
{
  uint8_t source[16];
  if (! emStoreIpSourceAddress(source, destination)) {
    return EMBER_BAD_ARGUMENT;
  }

  HostListener *listener = emberFindListener(sourcePort, source);
  if (listener != NULL) {
    struct sockaddr_in6 outSock = {0};
    outSock.sin6_family = AF_INET6;
    outSock.sin6_port = htons(destinationPort);
    MEMCOPY(outSock.sin6_addr.s6_addr, destination, 16);
    int interfaceIndex = if_nametoindex(emUnixInterface);
    outSock.sin6_scope_id = interfaceIndex;

    nativeWrite(listener->socket,
                payload,
                payloadLength,
                (struct sockaddr *)&outSock,
                sizeof(outSock));
    emberCounterHandler(EMBER_COUNTER_UDP_OUT, 1);

    return EMBER_SUCCESS;
  } else {
    fprintf(stderr, "No listener on sourcePort:%d\n",
            sourcePort);
    return EMBER_INVALID_CALL;
  }
}
开发者ID:umangparekh,项目名称:thread_apps,代码行数:36,代码来源:unix-udp-wrapper.c


示例13: emberAfPluginTunnelingServerTunnelOpenedCallback

/** @brief Tunnel Opened
 *
 * This function is called by the Tunneling server plugin whenever a tunnel is
 * opened.  Clients may open tunnels by sending a Request Tunnel command.
 *
 * @param tunnelId The identifier of the tunnel that has been opened.  Ver.:
 * always
 * @param protocolId The identifier of the metering communication protocol for
 * the tunnel.  Ver.: always
 * @param manufacturerCode The manufacturer code for manufacturer-defined
 * protocols or 0xFFFF in unused.  Ver.: always
 * @param flowControlSupport true is flow control support is requested or false
 * if it is not.  Ver.: always
 * @param maximumIncomingTransferSize The maximum incoming transfer size of the
 * client.  Ver.: always
 */
void emberAfPluginTunnelingServerTunnelOpenedCallback(uint16_t tunnelId,
                                                      uint8_t protocolId,
                                                      uint16_t manufacturerCode,
                                                      bool flowControlSupport,
                                                      uint16_t maximumIncomingTransferSize)
{
  EmberEUI64 remoteDeviceId;
  EmberNodeId remoteNodeId;
  uint8_t tunnelIndex;

  emberAfDebugPrintln("CHF: ServerTunnelOpened:0x%x,0x%2x", tunnelId, maximumIncomingTransferSize);

  // Since the tunneling cluster server code does not pass the EUI64 or the
  // node ID of the remote end of the tunnel so we need to look them up.
  // Luckily this callback is called in the context of the RequestTunnel
  // command processing and we look into the command for this info.
  remoteNodeId = emberAfCurrentCommand()->source;
  emberLookupEui64ByNodeId(emberAfCurrentCommand()->source, remoteDeviceId);

  // We only support one tunnel to a given remote device/endpoint so if we
  // already have a tunnel lets work with it.
  tunnelIndex = findTunnelByDeviceId(remoteDeviceId);
  if (tunnelIndex == EM_AF_PLUGIN_COMMS_HUB_FUNCTION_NULL_TUNNEL_INDEX) {
    // Find a slot in the tunnels table for the new tunnel
    tunnelIndex = findUnusedTunnel();
  }

  if (tunnelIndex != EM_AF_PLUGIN_COMMS_HUB_FUNCTION_NULL_TUNNEL_INDEX) {
    MEMCOPY(tunnels[tunnelIndex].remoteDeviceId, remoteDeviceId, EUI64_SIZE);
    tunnels[tunnelIndex].remoteNodeId = remoteNodeId;
    tunnels[tunnelIndex].remoteEndpoint = emberAfCurrentCommand()->apsFrame->sourceEndpoint;
    tunnels[tunnelIndex].type = SERVER_TUNNEL;
    tunnels[tunnelIndex].state = ACTIVE_TUNNEL;
    tunnels[tunnelIndex].tunnelId = tunnelId;
    tunnels[tunnelIndex].timeoutMSec = 0;

    // Per GBCS v0.8 section 10.2.2, Devices supporting the Tunneling Cluster
    // as a Server shall have a MaximumIncomingTransferSize set to 1500 octets,
    // in line with the ZSE default.  All Devices supporting the Tunneling
    // Cluster shall use this value in any RequestTunnelResponse command and
    // any RequestTunnel command.
    //
    // So rather than bring down the tunnel in the case when the maximumIncomingTransferSize
    // is less than 1500 we'll just log a warning message.
    if (maximumIncomingTransferSize < 1500) {
      emberAfPluginCommsHubFunctionPrintln("Warning: tunnel opened but MaximumIncomingTransferSize of client is %d but should be 1500",
                                           maximumIncomingTransferSize);
    }
    return;
  }

  // This is a misconfiguration or a bug in the code calling this API. Either
  // the tunnel client plugin limit is set too low for the number of tunnels
  // required or the code that is calling this function is in error.  Either way,
  // we'll print the error and return false indicating that the tunnel was
  // not created.
  emberAfPluginCommsHubFunctionPrintln("%p%p%p",
                                       "Error: ",
                                       "Tunnel Opened failed: ",
                                       "Too many tunnels");
}
开发者ID:taidalab,项目名称:ZigBeeember570,代码行数:77,代码来源:tunnel-manager.c


示例14: emberUdpListen

EmberStatus emberUdpListen(uint16_t port, const uint8_t *localAddress)
{
  if (emIsUnspecifiedAddress(localAddress)) {
    return EMBER_ERR_FATAL;
  }
  if (emberFindListener(port, localAddress) != NULL) {
    return EMBER_SUCCESS;
  }

  // The localAddress variable is used to glean the source address
  // associated with a particular listener.  For multicast listeners,
  // we use the mesh local address as source.
  bool isMulticast = emIsMulticastAddress(localAddress);
  EmberIpv6Address meshLocalAddress;
  emberGetLocalIpAddress(0, &meshLocalAddress);

  HostListener *listener = emberAddListener(port,
                                            (isMulticast
                                             ? meshLocalAddress.bytes
                                             : localAddress),
                                            SOCK_DGRAM, 0); // UDP

  if (listener == NULL) {
    return EMBER_TABLE_FULL;
  }

  if (listener->socket == INVALID_SOCKET) {
    return EMBER_ERR_FATAL;
  }

  int interfaceIndex = if_nametoindex(emUnixInterface);
  struct ipv6_mreq mreq6 = {0};
  MEMCOPY(&mreq6.ipv6mr_multiaddr.s6_addr, localAddress, 16);
  mreq6.ipv6mr_interface = interfaceIndex;
  int mcastTTL = 10;
  int loopBack = 1;

  if (setsockopt(listener->socket,
                 IPPROTO_IPV6,
                 IPV6_MULTICAST_IF,
                 &interfaceIndex,
                 sizeof(interfaceIndex))
      < 0) {
    perror("setsockopt:: IPV6_MULTICAST_IF:: ");
    return EMBER_ERR_FATAL;
  }

  if (setsockopt(listener->socket,
                 IPPROTO_IPV6,
                 IPV6_MULTICAST_LOOP,
                 &loopBack,
                 sizeof(loopBack))
      < 0) {
    perror("setsockopt:: IPV6_MULTICAST_LOOP:: ");
    return EMBER_ERR_FATAL;
  }

  if (setsockopt(listener->socket,
                 IPPROTO_IPV6,
                 IPV6_MULTICAST_HOPS,
                 &mcastTTL,
                 sizeof(mcastTTL))
      < 0) {
    perror("setsockopt:: IPV6_MULTICAST_HOPS::  ");
    return EMBER_ERR_FATAL;
  }

  if (isMulticast) {
    if (setsockopt(listener->socket,
                   IPPROTO_IPV6,
                   IPV6_JOIN_GROUP,
                   &mreq6,
                   sizeof(mreq6))
        < 0) {
      perror("setsockopt:: IPV6_JOIN_GROUP:: ");
      return EMBER_ERR_FATAL;
    }
  }

  return EMBER_SUCCESS;
}
开发者ID:umangparekh,项目名称:thread_apps,代码行数:81,代码来源:unix-udp-wrapper.c


示例15: read_scan_script

read_scan_script (j_compress_ptr cinfo, char * filename)
/* Read a scan script from the specified text file.
 * Each entry in the file defines one scan to be emitted.
 * Entries are separated by semicolons ';'.
 * An entry contains one to four component indexes,
 * optionally followed by a colon ':' and four progressive-JPEG parameters.
 * The component indexes denote which component(s) are to be transmitted
 * in the current scan.  The first component has index 0.
 * Sequential JPEG is used if the progressive-JPEG parameters are omitted.
 * The file is free format text: any whitespace may appear between numbers
 * and the ':' and ';' punctuation marks.  Also, other punctuation (such
 * as commas or dashes) can be placed between numbers if desired.
 * Comments preceded by '#' may be included in the file.
 * Note: we do very little validity checking here;
 * jcmaster.c will validate the script parameters.
 */
{
  FILE * fp;
  int scanno, ncomps, termchar;
  long val;
  jpeg_scan_info * scanptr;
#define MAX_SCANS  100    /* quite arbitrary limit */
  jpeg_scan_info scans[MAX_SCANS];

  if ((fp = fopen(filename, "r")) == NULL) {
    fprintf(stderr, "Can't open scan definition file %s\n", filename);
    return FALSE;
  }
  scanptr = scans;
  scanno = 0;

  while (read_scan_integer(fp, &val, &termchar)) {
    if (scanno >= MAX_SCANS) {
      fprintf(stderr, "Too many scans defined in file %s\n", filename);
      fclose(fp);
      return FALSE;
    }
    scanptr->component_index[0] = (int) val;
    ncomps = 1;
    while (termchar == ' ') {
      if (ncomps >= MAX_COMPS_IN_SCAN) {
  fprintf(stderr, "Too many components in one scan in file %s\n",
    filename);
  fclose(fp);
  return FALSE;
      }
      if (! read_scan_integer(fp, &val, &termchar))
  goto bogus;
      scanptr->component_index[ncomps] = (int) val;
      ncomps++;
    }
    scanptr->comps_in_scan = ncomps;
    if (termchar == ':') {
      if (! read_scan_integer(fp, &val, &termchar) || termchar != ' ')
  goto bogus;
      scanptr->Ss = (int) val;
      if (! read_scan_integer(fp, &val, &termchar) || termchar != ' ')
  goto bogus;
      scanptr->Se = (int) val;
      if (! read_scan_integer(fp, &val, &termchar) || termchar != ' ')
  goto bogus;
      scanptr->Ah = (int) val;
      if (! read_scan_integer(fp, &val, &termchar))
  goto bogus;
      scanptr->Al = (int) val;
    } else {
      /* set non-progressive parameters */
      scanptr->Ss = 0;
      scanptr->Se = DCTSIZE2-1;
      scanptr->Ah = 0;
      scanptr->Al = 0;
    }
    if (termchar != ';' && termchar != EOF) {
bogus:
      fprintf(stderr, "Invalid scan entry format in file %s\n", filename);
      fclose(fp);
      return FALSE;
    }
    scanptr++, scanno++;
  }

  if (termchar != EOF) {
    fprintf(stderr, "Non-numeric data in file %s\n", filename);
    fclose(fp);
    return FALSE;
  }

  if (scanno > 0) {
    /* Stash completed scan list in cinfo structure.
     * NOTE: for cjpeg's use, JPOOL_IMAGE is the right lifetime for this data,
     * but if you want to compress multiple images you'd want JPOOL_PERMANENT.
     */
    scanptr = (jpeg_scan_info *)
      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
          scanno * SIZEOF(jpeg_scan_info));
    MEMCOPY(scanptr, scans, scanno * SIZEOF(jpeg_scan_info));
    cinfo->scan_info = scanptr;
    cinfo->num_scans = scanno;
  }

//.........这里部分代码省略.........
开发者ID:vinnie38170,项目名称:klImageCore,代码行数:101,代码来源:rdswitch.c


示例16: jpeg_copy_critical_parameters

jpeg_copy_critical_parameters (j_decompress_ptr srcinfo,
			       j_compress_ptr dstinfo)
{
  JQUANT_TBL ** qtblptr;
  jpeg_component_info *incomp, *outcomp;
  JQUANT_TBL *c_quant, *slot_quant;
  int tblno, ci, coefi;

  /* Safety check to ensure start_compress not called yet. */
  if (dstinfo->global_state != CSTATE_START)
    ERREXIT1(dstinfo, JERR_BAD_STATE, dstinfo->global_state);
  /* Copy fundamental image dimensions */
  dstinfo->image_width = srcinfo->image_width;
  dstinfo->image_height = srcinfo->image_height;
  dstinfo->input_components = srcinfo->num_components;
  dstinfo->in_color_space = srcinfo->jpeg_color_space;
  /* Initialize all parameters to default values */
  jpeg_set_defaults(dstinfo);
  /* jpeg_set_defaults may choose wrong colorspace, eg YCbCr if input is RGB.
   * Fix it to get the right header markers for the image colorspace.
   */
  jpeg_set_colorspace(dstinfo, srcinfo->jpeg_color_space);
  dstinfo->data_precision = srcinfo->data_precision;
  dstinfo->CCIR601_sampling = srcinfo->CCIR601_sampling;
  /* Copy the source's quantization tables. */
  for (tblno = 0; tblno < NUM_QUANT_TBLS; tblno++) {
    if (srcinfo->quant_tbl_ptrs[tblno] != NULL) {
      qtblptr = & dstinfo->quant_tbl_ptrs[tblno];
      if (*qtblptr == NULL)
	*qtblptr = jpeg_alloc_quant_table((j_common_ptr) dstinfo);
      MEMCOPY((*qtblptr)->quantval,
	      srcinfo->quant_tbl_ptrs[tblno]->quantval,
	      SIZEOF((*qtblptr)->quantval));
      (*qtblptr)->sent_table = FALSE;
    }
  }
  /* Copy the source's per-component info.
   * Note we assume jpeg_set_defaults has allocated the dest comp_info array.
   */
  dstinfo->num_components = srcinfo->num_components;
  if (dstinfo->num_components < 1 || dstinfo->num_components > MAX_COMPONENTS)
    ERREXIT2(dstinfo, JERR_COMPONENT_COUNT, dstinfo->num_components,
	     MAX_COMPONENTS);
  for (ci = 0, incomp = srcinfo->comp_info, outcomp = dstinfo->comp_info;
       ci < dstinfo->num_components; ci++, incomp++, outcomp++) {
    outcomp->component_id = incomp->component_id;
    outcomp->h_samp_factor = incomp->h_samp_factor;
    outcomp->v_samp_factor = incomp->v_samp_factor;
    outcomp->quant_tbl_no = incomp->quant_tbl_no;
    /* Make sure saved quantization table for component matches the qtable
     * slot.  If not, the input file re-used this qtable slot.
     * IJG encoder currently cannot duplicate this.
     */
    tblno = outcomp->quant_tbl_no;
    if (tblno < 0 || tblno >= NUM_QUANT_TBLS ||
	srcinfo->quant_tbl_ptrs[tblno] == NULL)
      ERREXIT1(dstinfo, JERR_NO_QUANT_TABLE, tblno);
    slot_quant = srcinfo->quant_tbl_ptrs[tblno];
    c_quant = incomp->quant_table;
    if (c_quant != NULL) {
      for (coefi = 0; coefi < DCTSIZE2; coefi++) {
	if (c_quant->quantval[coefi] != slot_quant->quantval[coefi])
	  ERREXIT1(dstinfo, JERR_MISMATCHED_QUANT_TABLE, tblno);
      }
    }
    /* Note: we do not copy the source's Huffman table assignments;
     * instead we rely on jpeg_set_colorspace to have made a suitable choice.
     */
  }
  /* Also copy JFIF version and resolution information, if available.
   * Strictly speaking this isn't "critical" info, but it's nearly
   * always appropriate to copy it if available.  In particular,
   * if the application chooses to copy JFIF 1.02 extension markers from
   * the source file, we need to copy the version to make sure we don't
   * emit a file that has 1.02 extensions but a claimed version of 1.01.
   * We will *not*, however, copy version info from mislabeled "2.01" files.
   */
  if (srcinfo->saw_JFIF_marker) {
    if (srcinfo->JFIF_major_version == 1) {
      dstinfo->JFIF_major_version = srcinfo->JFIF_major_version;
      dstinfo->JFIF_minor_version = srcinfo->JFIF_minor_version;
    }
    dstinfo->density_unit = srcinfo->density_unit;
    dstinfo->X_density = srcinfo->X_density;
    dstinfo->Y_density = srcinfo->Y_density;
  }
}
开发者ID:svn2github,项目名称:htmldoc,代码行数:87,代码来源:jctrans.c


示例17: jpeg_copy_critical_parameters

jpeg_copy_critical_parameters (j_decompress_ptr srcinfo,
			       j_compress_ptr dstinfo)
{
  JQUANT_TBL ** qtblptr;
  jpeg_component_info *incomp, *outcomp;
  JQUANT_TBL *c_quant, *slot_quant;
  int tblno, ci, coefi;

  /* Safety check to ensure start_compress not called yet. */
  if (dstinfo->global_state != CSTATE_START)
    ERREXIT1(dstinfo, JERR_BAD_STATE, dstinfo->global_state);
  /* Copy fundamental image dimensions */
  dstinfo->image_width = srcinfo->image_width;
  dstinfo->image_height = srcinfo->image_height;
  dstinfo->input_components = srcinfo->num_components;
  dstinfo->in_color_space = srcinfo->jpeg_color_space;
  /* Initialize all parameters to default values */
  jpeg_set_defaults(dstinfo);
  /* jpeg_set_defaults may choose wrong colorspace, eg YCbCr if input is RGB.
   * Fix it to get the right header markers for the image colorspace.
   */
  jpeg_set_colorspace(dstinfo, srcinfo->jpeg_color_space);
  dstinfo->data_precision = srcinfo->data_precision;
  dstinfo->CCIR601_sampling = srcinfo->CCIR601_sampling;
  /* Copy the source's quantization tables. */
  for (tblno = 0; tblno < NUM_QUANT_TBLS; tblno++) {
    if (srcinfo->quant_tbl_ptrs[tblno] != NULL) {
      qtblptr = & dstinfo->quant_tbl_ptrs[tblno];
      if (*qtblptr == NULL)
	*qtblptr = jpeg_alloc_quant_table((j_common_ptr) dstinfo);
      MEMCOPY((*qtblptr)->quantval,
	      srcinfo->quant_tbl_ptrs[tblno]->quantval,
	      SIZEOF((*qtblptr)->quantval));
      (*qtblptr)->sent_table = FALSE;
    }
  }
  /* Copy the source's per-component info.
   * Note we assume jpeg_set_defaults has allocated the dest comp_info array.
   */
  dstinfo->num_components = srcinfo->num_components;
  if (dstinfo->num_components < 1 || dstinfo->num_components > MAX_COMPONENTS)
    ERREXIT2(dstinfo, JERR_COMPONENT_COUNT, dstinfo->num_components,
	     MAX_COMPONENTS);
  for (ci = 0, incomp = srcinfo->comp_info, outcomp = dstinfo->comp_info;
       ci < dstinfo->num_components; ci++, incomp++, outcomp++) {
    outcomp->component_id = incomp->component_id;
    outcomp->h_samp_factor = incomp->h_samp_factor;
    outcomp->v_samp_factor = incomp->v_samp_factor;
    outcomp->quant_tbl_no = incomp->quant_tbl_no;
    /* Make sure saved quantization table for component matches the qtable
     * slot.  If not, the input file re-used this qtable slot.
     * IJG encoder currently cannot duplicate this.
     */
    tblno = outcomp->quant_tbl_no;
    if (tblno < 0 || tblno >= NUM_QUANT_TBLS ||
	srcinfo->quant_tbl_ptrs[tblno] == NULL)
      ERREXIT1(dstinfo, JERR_NO_QUANT_TABLE, tblno);
    slot_quant = srcinfo->quant_tbl_ptrs[tblno];
    c_quant = incomp->quant_table;
    if (c_quant != NULL) {
      for (coefi = 0; coefi < DCTSIZE2; coefi++) {
	if (c_quant->quantval[coefi] != slot_quant->quantval[coefi])
	  ERREXIT1(dstinfo, JERR_MISMATCHED_QUANT_TABLE, tblno);
      }
    }
    /* Note: we do not copy the source's Huffman table assignments;
     * instead we rely on jpeg_set_colorspace to have made a suitable choice.
     */
  }
}
开发者ID:cjus,项目名称:s34mme,代码行数:70,代码来源:Jctrans.c


示例18: getMDO

int __WINAPI getMDO(lprec *lp, MYBOOL *usedpos, int *colorder, int *size, MYBOOL symmetric)
{
  int    error = FALSE;
  int    nrows = lp->rows+1, ncols = colorder[0];
  int    i, j, kk, n;
  int    *col_end, *row_map = NULL;
  int    Bnz, Blen, *Brows = NULL;
  int    stats[COLAMD_STATS];
  double knobs[COLAMD_KNOBS];

 /* Tally the non-zero counts of the unused columns/rows of the 
    basis matrix and store corresponding "net" starting positions */
  allocINT(lp, &col_end, ncols+1, FALSE);
  n = prepareMDO(lp, usedpos, colorder, col_end, NULL);
  Bnz = col_end[ncols];

 /* Check that we have unused basic columns, otherwise skip analysis */  
  if(ncols == 0 || Bnz == 0) 
    goto Transfer;

 /* Get net number of rows and fill mapper */
  allocINT(lp, &row_map, nrows, FALSE);
  nrows = 0;
  for(i = 0; i <= lp->rows; i++) {
    row_map[i] = i-nrows;
   /* Increment eliminated row counter if necessary */
    if(!includeMDO(usedpos, i)) 
      nrows++;
  }
  nrows = lp->rows+1 - nrows;

 /* Store row indeces of non-zero values in the basic columns */
  Blen = colamd_recommended(Bnz, nrows, ncols);
  allocINT(lp, &Brows, Blen, FALSE);
  prepareMDO(lp, usedpos, colorder, Brows, row_map);
#ifdef Paranoia
  verifyMDO(lp, col_end, Brows, nrows, ncols);
#endif

 /* Compute the MDO */
#if 1
  colamd_set_defaults(knobs);
  knobs [COLAMD_DENSE_ROW] = 0.2+0.2 ;    /* default changed for UMFPACK */
  knobs [COLAMD_DENSE_COL] = knobs [COLAMD_DENSE_ROW];    
  if(symmetric && (nrows == ncols)) {
    MEMCOPY(colorder, Brows, ncols + 1);
    error = !symamd(nrows, colorder, col_end, Brows, knobs, stats, mdo_calloc, mdo_free);
  }
  else
    error = !colamd(nrows, ncols, Blen, Brows, col_end, knobs, stats);
#else
  if(symmetric && (nrows == ncols)) {
    MEMCOPY(colorder, Brows, ncols + 1);
    error = !symamd(nrows, colorder, col_end, Brows, knobs, stats, mdo_calloc, mdo_free);
  }
  else
    error = !colamd(nrows, ncols, Blen, Brows, col_end, (double *) NULL, stats);
#endif

 /* Transfer the estimated optimal ordering, adjusting for index offsets */
Transfer:
  if(error) 
    error = stats[COLAMD_STATUS];
  else {
    MEMCOPY(Brows, colorder, ncols + 1);
    for(j = 0; j < ncols; j++) {
      kk = col_end[j];
      n = Brows[kk+1];
      colorder[j+1] = n;
    }
  }

  /* Free temporary vectors */
  FREE(col_end);
  if(row_map != NULL)
    FREE(row_map);
  if(Brows != NULL)
    FREE(Brows);

  if(size != NULL)
    *size = ncols;
  return( error );
}
开发者ID:JensAdamczak,项目名称:lpSolveAPI,代码行数:83,代码来源:lp_MDO.c


示例19: setEntry

static EmberStatus setEntry(uint8_t index,
                            const EmberAfRf4ceMsoIrRfDatabaseEntry *entry)
{
  // When a new entry comes in, we always remove the old entry, even though the
  // new entry might not fit.  The rationale is that the old entry is being
  // replaced because it is no longer valid for the peripheral devices in the
  // system.  Reverting to a default entry seems better than keeping the old,
  // invalid entry.
  uint32_t reclaimableBytes = calculateHeapUsage(&database[index]);
  if (reclaimableBytes != 0) {
    uint8_t *head;
    uint8_t i;

    // If the space we think we are using is ever less than what we think we
    // can reclaim, then something has gone very wrong.
    assert(reclaimableBytes <= USED_HEAP_SPACE());

    // The RF payloads and the IR code are all stored contiguously in the heap,
    // although some of them may be empty.  We just need to find whichever one
    // is first.  If we expect to have one but can't find it or we do find it
    // but its not actually within the heap area, then something has gone very
    // wrong.
    head = findHead(&database[index]);
    assert(head != NULL);
    assert(heap <= head);
    assert(head + reclaimableBytes <= tail);

    // Rewind the tail pointer and all the RF payload and IR code pointers for
    // entries that follow the old one.  This makes them point to where they
    // should after the heap is adjusted.  This means the pointers are NOT
    // valid until the heap is adjusted.
    tail -= reclaimableBytes;
    for (i = 0; i < COUNTOF(database); i++) {
      if (head < database[i].rfPressedDescriptor.payload) {
        database[i].rfPressedDescriptor.payload -= reclaimableBytes;
      }
      if (head < database[i].rfRepeatedDescriptor.payload) {
        database[i].rfRepeatedDescriptor.payload -= reclaimableBytes;
      }
      if (head < database[i].rfReleasedDescriptor.payload) {
        database[i].rfReleasedDescriptor.payload -= reclaimableBytes;
      }
      if (head < database[i].irDescriptor.irCode) {
        database[i].irDescriptor.irCode -= reclaimableBytes;
      }
    }

    // Move the stuff after the old entry so it immediately follows the stuff
    // preceding the old entry.  The old entry is now gone and the tail, RF
    // payload, and IR pointers are all valid again.
    MEMMOVE(head, head + reclaimableBytes, tail - head);

    // Wipe the stuff following the new tail.
    MEMSET(tail, 0, reclaimableBytes);
  }

  // The free space is the unused space and includes what we reclaimed from the
  // old entry.  If we don't have enough room, we drop the new entry and leave
  // a default in its place.
  if (FREE_HEAP_SPACE() < calculateHeapUsage(entry)) {
    SET_DEFAULT(&database[index]);
    return EMBER_TABLE_FULL;
  }

  // The basic structure of the new entry is copied as is to the database.  The
  // variable-sized portion of each descriptor is copied into the heap and then
  // the pointer to that data from the database is adjusted to point into the
  // heap.
  MEMCOPY(&database[index], entry, sizeof(EmberAfRf4ceMsoIrRfDatabaseEntry));
  database[index].rfPressedDescriptor.payload
    = copyRfPayload(emberAfRf4ceMsoIrRfDatabaseEntryHasRfPressedDescriptor(entry),
                    &entry->rfPressedDescriptor);
  database[index].rfRepeatedDescriptor.payload
    = copyRfPayload(emberAfRf4ceMsoIrRfDatabaseEntryHasRfRepeatedDescriptor(entry),
                    &entry->rfRepeatedDescriptor);
  database[index].rfReleasedDescriptor.payload
    = copyRfPayload(emberAfRf4ceMsoIrRfDatabaseEntryHasRfReleasedDescriptor(entry),
                    &entry->rfReleasedDescriptor);
  database[index].irDescriptor.irCode
    = copyIrCode(emberAfRf4ceMsoIrRfDatabaseEntryHasIrDescriptor(entry),
                 &entry->irDescriptor);

  return EMBER_SUCCESS;
}
开发者ID:taidalab,项目名称:ZigBeeember570,代码行数:84,代码来源:rf4ce-mso-ir-rf-database-originator.c


示例20: MEMCOPY

CED2KFriendLink::CED2KFriendLink(LPCTSTR userName, uchar userHash[])
{
	m_sUserName = userName;
	MEMCOPY(m_hash, userHash, 16*sizeof(uchar));
}
开发者ID:BackupTheBerlios,项目名称:resurrection,代码行数:5,代码来源:ED2KLink.cpp



注:本文中的MEMCOPY函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。


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C++ MEMCPY函数代码示例发布时间:2022-05-30
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C++ MEM函数代码示例发布时间:2022-05-30
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