C++ DestroyMagickWand函数代码示例

int fuppes_transcoder_transcode_image_mem(plugin_info* plugin,
	                                const unsigned char** inBuffer,
																	size_t inSize,
		                              unsigned char** outBuffer,
																	size_t* outSize,
																	int width, int height,
																	int less,	int greater)
{
	MagickBooleanType status;
	MagickWand* wand = NewMagickWand();
	
	//printf("magickWand %d\n", 1);
	
	status = MagickReadImageBlob(wand, *inBuffer, inSize);
	if(status == MagickFalse) {
		plugin->cb.log(plugin, 0, __FILE__, __LINE__,
								"error reading image from buffer. size: %d", inSize);
		wand = DestroyMagickWand(wand);
		return -1;
	}

	//printf("magickWand %d\n", 2);
	
	MagickWand* wandOut;
	char geometry[123];
	sprintf(&geometry, "%dx%d", width, height);
	//char* geometry = "250x250";
	wandOut = MagickTransformImage(wand, "", geometry);
	wand = DestroyMagickWand(wand);
	if(wandOut == NULL) {		
		return -1;
	}

	//printf("magickWand %d\n", 3);
	
	//MagickBooleanType MagickSetFormat(MagickWand *wand,const char *format)
	
	size_t length;
	unsigned char* blob;
	blob = MagickGetImageBlob(wandOut, &length);
	*outBuffer = realloc(*outBuffer, length);
	memcpy(*outBuffer, blob, length);
	*outSize = length;
	MagickRelinquishMemory(blob);
	
	//printf("magickWand %d, %d\n", 4, *outSize);
	
	//MagickRelinquishMemory(wandOut);
	wandOut = DestroyMagickWand(wandOut);
	return 0;	
}

void
im_leave (im_env_t *env)
{
  if (NULL != env->ime_target_magick_wand)
    DestroyMagickWand (env->ime_target_magick_wand);
  DestroyMagickWand (env->ime_magick_wand);
  if (NULL != env->ime_drawing_wand)
    DestroyDrawingWand (env->ime_drawing_wand);
  if (NULL != env->ime_background)
    DestroyPixelWand (env->ime_background);
  im_dbg_printf (("IM %p: about to leave %s()...", env, env->ime_bifname));
  /* mutex_leave (im_lib_mutex); */
  im_dbg_printf (("... IM %p: left\n", env));
}

unsigned char *get_transition_image_blob(char *file_buf, int buf_size,
		size_t * thumbnail_size, img_transition_info *image_transition_info) {

	unsigned char *image_data = NULL;

	if (file_buf == NULL)
		return NULL;
	if (image_transition_info == NULL)
		return NULL;
	if ((0 == image_transition_info->is_rotate)
			&& ('\0' == image_transition_info->transition_str[0])
			&& (0 == image_transition_info->is_quality))
		return NULL;
	MagickBooleanType status;
	MagickWand *magick_wand = NULL;
	magick_wand = NewMagickWand();
	status = MagickReadImageBlob(magick_wand, file_buf, buf_size);
	if (status == MagickFalse) {
		ThrowWandException(magick_wand);
		return NULL;
	}
	image_data = covert_image(magick_wand, image_transition_info,
			thumbnail_size);
	magick_wand = DestroyMagickWand(magick_wand);
	return image_data;

}

int magickUnsharpMaskImage(const char *imageFile, const char *outputImage, double radius, double sigma, double amount, double threshold){
    MagickBooleanType status;

    MagickWand *magick_wand;

    /*
      Read an image.
    */
    MagickWandGenesis();
    magick_wand=NewMagickWand();  
    status=MagickReadImage(magick_wand, (char *)imageFile);
    if (status == MagickFalse){
      ThrowWandException(magick_wand);
    }
    /*
      Turn the images into a thumbnail sequence.
    */
//    MagickResetIterator(magick_wand);
//    while (MagickNextImage(magick_wand) != MagickFalse)
      MagickUnsharpMaskImage(magick_wand, radius, sigma, amount, threshold);
    /*
      Write the image then destroy it.
    */
    status=MagickWriteImages(magick_wand, (char *)outputImage, MagickTrue);
    if (status == MagickFalse)
      ThrowWandException(magick_wand);
    magick_wand=DestroyMagickWand(magick_wand);
    MagickWandTerminus();
    return status;
}

int magickChopImage(const char *imageFile, const char *outputImage, int width, int height, int xPos, int yPos){
    MagickBooleanType status;

    MagickWand *magick_wand;

    /*
      Read an image.
    */
    MagickWandGenesis();
    magick_wand=NewMagickWand();  
    status=MagickReadImage(magick_wand, (char *)imageFile);
    if (status == MagickFalse){
      ThrowWandException(magick_wand);
    }
    /*
      Turn the images into a thumbnail sequence.
    */
    MagickResetIterator(magick_wand);
    while (MagickNextImage(magick_wand) != MagickFalse)
      MagickChopImage(magick_wand, width, height, xPos, yPos);
    /*
      Write the image then destroy it.
    */
    status=MagickWriteImages(magick_wand, (char *)outputImage, MagickTrue);
    if (status == MagickFalse)
      ThrowWandException(magick_wand);
    magick_wand=DestroyMagickWand(magick_wand);
    MagickWandTerminus();
    return status;
}

int magickCompressImage(const char *imageFile, const char *outputImage, const char *format, int compressionType, double compressionRate){
    MagickBooleanType status;

    MagickWand *magick_wand;

    /*
      Read an image.
    */
 //   printf("compressionRate: %d", compressionRate);
    MagickWandGenesis();
    magick_wand=NewMagickWand();  
    status=MagickReadImage(magick_wand, (char *)imageFile);
    if (status == MagickFalse){
      ThrowWandException(magick_wand);
    }
    /*
      Turn the images into a thumbnail sequence.
    */
//    MagickResetIterator(magick_wand);
//    while (MagickNextImage(magick_wand) != MagickFalse){
        MagickSetFormat(magick_wand, (char *)format);
        MagickSetImageCompression(magick_wand, compressionType);
        MagickSetImageCompressionQuality(magick_wand, compressionRate);
//    }

    /*
      Write the image then destroy it.
    */
    status=MagickWriteImages(magick_wand, (char *)outputImage, MagickTrue);
    if (status == MagickFalse)
      ThrowWandException(magick_wand);
    magick_wand=DestroyMagickWand(magick_wand);
    MagickWandTerminus();
    return status;
}

int magickResizeImage(const char *imageFile, const char *outputImage, int columns, int rows, int magickFilter, double blur){
    MagickBooleanType status;

    MagickWand *magick_wand;

    /*
      Read an image.
    */
    MagickWandGenesis();
    magick_wand=NewMagickWand();  
    status=MagickReadImage(magick_wand, (char *)imageFile);
    if (status == MagickFalse){
      ThrowWandException(magick_wand);
    }
    /*
      Turn the images into a thumbnail sequence.
    */
    MagickResetIterator(magick_wand);
    while (MagickNextImage(magick_wand) != MagickFalse)
      MagickResizeImage(magick_wand, columns, rows, LanczosFilter, blur);
    /*
      Write the image then destroy it.
    */
    status=MagickWriteImages(magick_wand, (char *)outputImage, MagickTrue);
    if (status == MagickFalse)
      ThrowWandException(magick_wand);
    magick_wand=DestroyMagickWand(magick_wand);
    MagickWandTerminus();
    return status;
    
}

int magickRotateImage(const char *imageFile, const char *outputImage, double degree){
    MagickBooleanType status;
    MagickWand *magick_wand;

    PixelWand * bg = malloc(sizeof(PixelWand *));
    /*
      Read an image.
    */
    MagickWandGenesis();
    magick_wand=NewMagickWand();  
    status=MagickReadImage(magick_wand, (char *)imageFile);
    if (status == MagickFalse){
      ThrowWandException(magick_wand);
    }
    /*
      Turn the images into a thumbnail sequence.
    */
    MagickResetIterator(magick_wand);
    while (MagickNextImage(magick_wand) != MagickFalse)
      MagickRotateImage(magick_wand, bg, degree);
//    MagickSetImageCompression(magick_wand, MW_JPEGCompression);
//    MagickUnsharpMaskImage( magick_wand, 4.5, 4.0, 4.5, 0.02 );
    /*
      Write the image then destroy it.
    */
    status=MagickWriteImages(magick_wand, (char *)outputImage, MagickTrue);
    if (status == MagickFalse)
      ThrowWandException(magick_wand);
    magick_wand=DestroyMagickWand(magick_wand);
    MagickWandTerminus();
    return status;
}

int magickModulateImage(const char *imageFile, const char *outputImage, double brightness, double saturation, double hue){
    MagickBooleanType status;

    MagickWand *magick_wand;

    /*
      Read an image.
    */
    MagickWandGenesis();
    magick_wand=NewMagickWand();  
    status=MagickReadImage(magick_wand, (char *)imageFile);
    if (status == MagickFalse){
      ThrowWandException(magick_wand);
    }
    /*
      Turn the images into a thumbnail sequence.
    */
    MagickResetIterator(magick_wand);
    while (MagickNextImage(magick_wand) != MagickFalse)
      MagickModulateImage(magick_wand, brightness, saturation, hue);
    /*
      Write the image then destroy it.
    */
    status=MagickWriteImages(magick_wand, (char *)outputImage, MagickTrue);
    if (status == MagickFalse)
      ThrowWandException(magick_wand);
    magick_wand=DestroyMagickWand(magick_wand);
    MagickWandTerminus();
    return status;
}

/**
 * Helper function to provide a visual interpretation of the accumulator.
 */
void print_accumulator(char* name) {
	MagickWand *mw = NULL;
	PixelWand **pmw = NULL;
	PixelIterator *imw = NULL;
	MagickWandGenesis();

	unsigned long width, height;
	width = _circumference;
	height = _dimensions.semi_diagonal;

	mw = NewMagickWand();
	MagickSetSize(mw, width, height);
	MagickReadImage(mw, "xc:black");
    imw = NewPixelIterator(mw);

    int y, x;
    for (y=0; y<height; y++) {
    	pmw = PixelGetNextIteratorRow(imw, &width);
    	for (x=0; x< (long) width; x++) {
    		_CELL_TYPE* cell = &_accumulator[x][height-y-1];
    		PixelSetRed(pmw[x], 1.0/20.0 * cell->count);
    	}
    	PixelSyncIterator(imw);
    }
    MagickWriteImage(mw, name);

	if(mw)
		mw = DestroyMagickWand(mw);

	MagickWandTerminus();
}

void iac_image_destroy(MagickWand *wand)
{

    if (wand)
        DestroyMagickWand(wand);

}

int barcode_to_png (char *image_name) {
  MagickWand *magick_wand;
  MagickBooleanType status;

  int width, height, pad, half_pad;

  /* read a barcode image */
  MagickWandGenesis();
  magick_wand = NewMagickWand();
  MagickSetResolution(magick_wand, 300, 300);
  status = MagickReadImage(magick_wand, image_name);
  if (status == MagickFalse) ThrowWandException(magick_wand, 1);

  /* trim the image, resample it, and pad it by [10% of the long side] per side */
  MagickTrimImage(magick_wand, 10);
  width = MagickGetImageWidth(magick_wand);
  height = MagickGetImageHeight(magick_wand);
  pad = determine_padding(width, height);
  half_pad = round(pad/2);
  MagickExtentImage(magick_wand, width+pad, height+pad, -half_pad, -half_pad);
  
  /* write image (a PNG version and a formatted PS version) */
  status=MagickWriteImage(magick_wand, chop_path(image_name, ".png"));
  if (status == MagickFalse) ThrowWandException(magick_wand, 2);
  status=MagickWriteImage(magick_wand, chop_path(image_name, ".ps"));
  if (status == MagickFalse) ThrowWandException(magick_wand, 2);

  /* clean up */
  magick_wand=DestroyMagickWand(magick_wand);
  MagickWandTerminus();

  return 0;
}

int main(int argc,char **argv)
{
	
	//creamos la imagen
	MagickWand *imagen, *imagen2;
	int proporcion = atoi(argv[3]);
	
	//inicializamos la imagen
	imagen = NewMagickWand();
	imagen2 = NewMagickWand();
	
	//cargamos la imagen
	MagickReadImage(imagen,argv[1]);
	
	//imagen2 = CloneMagickWand(imagen);

	//llamamos a la funcion de redimension
	Resize(imagen,imagen2,proporcion);
	
	//guardamos la imagen en disco
	MagickWriteImages(imagen2,argv[2],MagickTrue);
	
	//liberamos memoria destruyendo la imagen
	imagen = DestroyMagickWand(imagen2);
	
	//terminamos ejecucion de la libreria
	MagickWandTerminus();
	
	return 0;
}

static ngx_int_t
ngx_http_circle_gif_init(ngx_http_circle_gif_loc_conf_t *cglcf)
{
  u_int i;
  MagickWand *wand;
  PixelWand *bg_wand, *fg_wand;
  DrawingWand *dwand;

  wand = NewMagickWand();
  bg_wand = NewPixelWand();
  fg_wand = NewPixelWand();
  dwand = NewDrawingWand();
  if ((cglcf->circle_templates = malloc((1+radius2index(cglcf->max_radius, cglcf))*sizeof(unsigned char*))) == NULL ||
	  (cglcf->circle_sizes = malloc((1+radius2index(cglcf->max_radius, cglcf))*sizeof(size_t))) == NULL) {
    perror("malloc()");
    return NGX_ERROR;
  }
  for (i=0;i<=radius2index(cglcf->max_radius, cglcf);i++) {
    cglcf->circle_templates[i] = ngx_http_circle_gif_template(cglcf->min_radius+i*cglcf->step_radius, &cglcf->circle_sizes[i], 
            wand, bg_wand, fg_wand, dwand);
  }
  DestroyMagickWand( wand );
  DestroyPixelWand( fg_wand );
  DestroyPixelWand( bg_wand );
  DestroyDrawingWand( dwand );
  return i;
}

G_MODULE_EXPORT void cb_image_save_cancel_clicked(GtkButton *button)
{
  if(camera_params.wand_data.saving_wand)
    DestroyMagickWand(camera_params.wand_data.saving_wand);
  camera_params.wand_data.saving_wand=NULL;
  gtk_widget_hide( camera_params.objects->imagesavedialog );
}