]> git.kernelconcepts.de Git - karo-tx-uboot.git/blobdiff - tools/easylogo/easylogo.c
Merge branch 'master' of git://www.denx.de/git/u-boot-cfi-flash
[karo-tx-uboot.git] / tools / easylogo / easylogo.c
index 9f1d1fff0821cfb2f158c7cd40f69a426bc08d08..c20e6a717c4d9333ebc6032b01bf071895b0d844 100644 (file)
 ** This is still under construction!
 */
 
+#include <getopt.h>
+#include <stdbool.h>
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 
 #pragma pack(1)
 
 /*#define ENABLE_ASCII_BANNERS */
 
 typedef struct {
-       unsigned char   id;
-       unsigned char   ColorMapType;
-       unsigned char   ImageTypeCode;
-       unsigned short  ColorMapOrigin;
-       unsigned short  ColorMapLenght;
-       unsigned char   ColorMapEntrySize;
-       unsigned short  ImageXOrigin;
-       unsigned short  ImageYOrigin;
-       unsigned short  ImageWidth;
-       unsigned short  ImageHeight;
-       unsigned char   ImagePixelSize;
-       unsigned char   ImageDescriptorByte;
+       unsigned char id;
+       unsigned char ColorMapType;
+       unsigned char ImageTypeCode;
+       unsigned short ColorMapOrigin;
+       unsigned short ColorMapLenght;
+       unsigned char ColorMapEntrySize;
+       unsigned short ImageXOrigin;
+       unsigned short ImageYOrigin;
+       unsigned short ImageWidth;
+       unsigned short ImageHeight;
+       unsigned char ImagePixelSize;
+       unsigned char ImageDescriptorByte;
 } tga_header_t;
 
 typedef struct {
-       unsigned char r,g,b ;
-} rgb_t ;
+       unsigned char r, g, b;
+} rgb_t;
 
 typedef struct {
-       unsigned char b,g,r ;
-} bgr_t ;
+       unsigned char b, g, r;
+} bgr_t;
 
 typedef struct {
-       unsigned char   Cb,y1,Cr,y2;
-} yuyv_t ;
+       unsigned char Cb, y1, Cr, y2;
+} yuyv_t;
 
 typedef struct {
-       unsigned char   *data,
-                                       *palette ;
-       int                             width,
-                                       height,
-                                       pixels,
-                                       bpp,
-                                       pixel_size,
-                                       size,
-                                       palette_size,
-                                       yuyv;
-} image_t ;
+       void *data, *palette;
+       int width, height, pixels, bpp, pixel_size, size, palette_size, yuyv;
+} image_t;
 
 void StringUpperCase (char *str)
 {
-    int count = strlen(str);
-    char c ;
-
-    while(count--)
-    {
-       c=*str;
-       if ((c >= 'a')&&(c<='z'))
-           *str = 'A' + (c-'a');
-       str++ ;
-    }
+       int count = strlen (str);
+       char c;
+
+       while (count--) {
+               c = *str;
+               if ((c >= 'a') && (c <= 'z'))
+                       *str = 'A' + (c - 'a');
+               str++;
+       }
 }
 
 void StringLowerCase (char *str)
 {
-    int count = strlen(str);
-    char c ;
-
-    while(count--)
-    {
-       c=*str;
-       if ((c >= 'A')&&(c<='Z'))
-           *str = 'a' + (c-'A');
-       str++ ;
-    }
+       int count = strlen (str);
+       char c;
+
+       while (count--) {
+               c = *str;
+               if ((c >= 'A') && (c <= 'Z'))
+                       *str = 'a' + (c - 'A');
+               str++;
+       }
 }
-void pixel_rgb_to_yuyv (rgb_t *rgb_pixel, yuyv_t *yuyv_pixel)
+void pixel_rgb_to_yuyv (rgb_t * rgb_pixel, yuyv_t * yuyv_pixel)
 {
-    unsigned int pR, pG, pB ;
+       unsigned int pR, pG, pB;
 
-    /* Transform (0-255) components to (0-100) */
-    pR = rgb_pixel->r * 100 / 255 ;
-    pG = rgb_pixel->g * 100 / 255 ;
-    pB = rgb_pixel->b * 100 / 255 ;
+       /* Transform (0-255) components to (0-100) */
+       pR = rgb_pixel->r * 100 / 255;
+       pG = rgb_pixel->g * 100 / 255;
+       pB = rgb_pixel->b * 100 / 255;
 
-    /* Calculate YUV values (0-255) from RGB beetween 0-100 */
-    yuyv_pixel->y1 = yuyv_pixel->y2    = 209 * (pR + pG + pB) / 300 + 16  ;
-    yuyv_pixel->Cb                     = pB - (pR/4)   - (pG*3/4)   + 128 ;
-    yuyv_pixel->Cr                     = pR - (pG*3/4) - (pB/4)     + 128 ;
+       /* Calculate YUV values (0-255) from RGB beetween 0-100 */
+       yuyv_pixel->y1 = yuyv_pixel->y2 = 209 * (pR + pG + pB) / 300 + 16;
+       yuyv_pixel->Cb = pB - (pR / 4) - (pG * 3 / 4) + 128;
+       yuyv_pixel->Cr = pR - (pG * 3 / 4) - (pB / 4) + 128;
 
-    return ;
+       return;
 }
 
-void printlogo_rgb (rgb_t      *data, int w, int h)
+void printlogo_rgb (rgb_t data, int w, int h)
 {
-    int x,y;
-    for (y=0; y<h; y++)
-    {
-       for (x=0; x<w; x++, data++)
-           if ((data->r < 30)/*&&(data->g == 0)&&(data->b == 0)*/)
-               printf(" ");
-           else
-               printf("X");
-       printf("\n");
-    }
+       int x, y;
+
+       for (y = 0; y < h; y++) {
+               for (x = 0; x < w; x++, data++)
+                       if ((data->r <
+                            30) /*&&(data->g == 0)&&(data->b == 0) */ )
+                               printf (" ");
+                       else
+                               printf ("X");
+               printf ("\n");
+       }
 }
 
 void printlogo_yuyv (unsigned short *data, int w, int h)
 {
-    int x,y;
-    for (y=0; y<h; y++)
-    {
-       for (x=0; x<w; x++, data++)
-           if (*data == 0x1080)    /* Because of inverted on i386! */
-               printf(" ");
-           else
-               printf("X");
-       printf("\n");
-    }
+       int x, y;
+
+       for (y = 0; y < h; y++) {
+               for (x = 0; x < w; x++, data++)
+                       if (*data == 0x1080)    /* Because of inverted on i386! */
+                               printf (" ");
+                       else
+                               printf ("X");
+               printf ("\n");
+       }
 }
 
-int image_load_tga (image_t *image, char *filename)
+static inline unsigned short le16_to_cpu (unsigned short val)
 {
-    FILE *file ;
-    tga_header_t header ;
-    int i;
-    unsigned char app ;
-    rgb_t *p ;
+       union {
+               unsigned char pval[2];
+               unsigned short val;
+       } swapped;
 
-    if( ( file = fopen( filename, "rb" ) ) == NULL )
-       return -1;
-
-    fread(&header, sizeof(header), 1, file);
-
-    image->width       = header.ImageWidth ;
-    image->height      = header.ImageHeight ;
+       swapped.val = val;
+       return (swapped.pval[1] << 8) + swapped.pval[0];
+}
 
-    switch (header.ImageTypeCode){
-       case 2: /* Uncompressed RGB */
-                       image->yuyv = 0 ;
-                       image->palette_size = 0 ;
-                       image->palette = NULL ;
-           break;
+int image_load_tga (image_t * image, char *filename)
+{
+       FILE *file;
+       tga_header_t header;
+       int i;
+       unsigned char app;
+       rgb_t *p;
+
+       if ((file = fopen (filename, "rb")) == NULL)
+               return -1;
+
+       fread (&header, sizeof (header), 1, file);
+
+       /* byte swap: tga is little endian, host is ??? */
+       header.ColorMapOrigin = le16_to_cpu (header.ColorMapOrigin);
+       header.ColorMapLenght = le16_to_cpu (header.ColorMapLenght);
+       header.ImageXOrigin = le16_to_cpu (header.ImageXOrigin);
+       header.ImageYOrigin = le16_to_cpu (header.ImageYOrigin);
+       header.ImageWidth = le16_to_cpu (header.ImageWidth);
+       header.ImageHeight = le16_to_cpu (header.ImageHeight);
+
+       image->width = header.ImageWidth;
+       image->height = header.ImageHeight;
+
+       switch (header.ImageTypeCode) {
+       case 2:         /* Uncompressed RGB */
+               image->yuyv = 0;
+               image->palette_size = 0;
+               image->palette = NULL;
+               break;
 
        default:
-           printf("Format not supported!\n");
-           return -1 ;
-    }
+               printf ("Format not supported!\n");
+               return -1;
+       }
 
-    image->bpp                 = header.ImagePixelSize ;
-    image->pixel_size          = ((image->bpp-1) / 8) + 1 ;
-    image->pixels              = image->width * image->height;
-    image->size                = image->pixels * image->pixel_size ;
-    image->data                = malloc(image->size) ;
+       image->bpp = header.ImagePixelSize;
+       image->pixel_size = ((image->bpp - 1) / 8) + 1;
+       image->pixels = image->width * image->height;
+       image->size = image->pixels * image->pixel_size;
+       image->data = malloc (image->size);
 
-    if (image->bpp != 24)
-    {
-       printf("Bpp not supported: %d!\n", image->bpp);
-       return -1 ;
-    }
+       if (image->bpp != 24) {
+               printf ("Bpp not supported: %d!\n", image->bpp);
+               return -1;
+       }
 
-    fread(image->data, image->size, 1, file);
+       fread (image->data, image->size, 1, file);
 
 /* Swapping R and B values */
 
-    p = image->data ;
-    for(i=0; i < image->pixels; i++, p++)
-    {
-       app = p->r ;
-       p->r = p->b ;
-       p->b = app ;
-    }
+       p = image->data;
+       for (i = 0; i < image->pixels; i++, p++) {
+               app = p->r;
+               p->r = p->b;
+               p->b = app;
+       }
 
 /* Swapping image */
 
-    if(!(header.ImageDescriptorByte & 0x20))
-    {
-       unsigned char *temp = malloc(image->size);
-       int linesize = image->pixel_size * image->width ;
-       void    *dest = image->data,
-               *source = temp + image->size - linesize ;
-
-       printf("S");
-       if (temp == NULL)
-       {
-           printf("Cannot alloc temp buffer!\n");
-           return -1;
-       }
+       if (!(header.ImageDescriptorByte & 0x20)) {
+               unsigned char *temp = malloc (image->size);
+               int linesize = image->pixel_size * image->width;
+               void *dest = image->data,
+                       *source = temp + image->size - linesize;
 
-       memcpy(temp, image->data, image->size);
-       for(i = 0; i<image->height; i++, dest+=linesize, source-=linesize)
-           memcpy(dest, source, linesize);
+               printf ("S");
+               if (temp == NULL) {
+                       printf ("Cannot alloc temp buffer!\n");
+                       return -1;
+               }
 
-       free( temp );
-    }
+               memcpy (temp, image->data, image->size);
+               for (i = 0; i < image->height;
+                    i++, dest += linesize, source -= linesize)
+                       memcpy (dest, source, linesize);
 
+               free (temp);
+       }
 #ifdef ENABLE_ASCII_BANNERS
-    printlogo_rgb (image->data,image->width, image->height);
+       printlogo_rgb (image->data, image->width, image->height);
 #endif
 
-    fclose (file);
-    return 0;
+       fclose (file);
+       return 0;
 }
 
-int image_free (image_t *image)
+void image_free (image_t * image)
 {
-    if(image->data != NULL)
-               free(image->data);
-
-    if(image->palette != NULL)
-               free(image->palette);
-
-       return 0;
+       free (image->data);
+       free (image->palette);
 }
 
-int image_rgb_to_yuyv (image_t *rgb_image, image_t *yuyv_image)
+int image_rgb_to_yuyv (image_t * rgb_image, image_t * yuyv_image)
 {
-       rgb_t   *rgb_ptr = (rgb_t *) rgb_image->data ;
-       yuyv_t  yuyv ;
-       unsigned short *dest ;
-       int     count = 0 ;
-
-       yuyv_image->pixel_size          = 2 ;
-       yuyv_image->bpp                 = 16 ;
-       yuyv_image->yuyv                = 1 ;
-       yuyv_image->width               = rgb_image->width ;
-       yuyv_image->height              = rgb_image->height ;
-       yuyv_image->pixels              = yuyv_image->width * yuyv_image->height ;
-       yuyv_image->size                = yuyv_image->pixels * yuyv_image->pixel_size ;
-       dest = (unsigned short *) (yuyv_image->data     = malloc(yuyv_image->size)) ;
-       yuyv_image->palette             = 0 ;
-       yuyv_image->palette_size= 0 ;
-
-       while((count++) < rgb_image->pixels)
-       {
+       rgb_t *rgb_ptr = (rgb_t *) rgb_image->data;
+       yuyv_t yuyv;
+       unsigned short *dest;
+       int count = 0;
+
+       yuyv_image->pixel_size = 2;
+       yuyv_image->bpp = 16;
+       yuyv_image->yuyv = 1;
+       yuyv_image->width = rgb_image->width;
+       yuyv_image->height = rgb_image->height;
+       yuyv_image->pixels = yuyv_image->width * yuyv_image->height;
+       yuyv_image->size = yuyv_image->pixels * yuyv_image->pixel_size;
+       dest = (unsigned short *) (yuyv_image->data =
+                                  malloc (yuyv_image->size));
+       yuyv_image->palette = 0;
+       yuyv_image->palette_size = 0;
+
+       while ((count++) < rgb_image->pixels) {
                pixel_rgb_to_yuyv (rgb_ptr++, &yuyv);
 
-               if ((count & 1)==0)     /* Was == 0 */
-                   memcpy (dest, ((void *)&yuyv) + 2, sizeof(short));
+               if ((count & 1) == 0)   /* Was == 0 */
+                       memcpy (dest, ((void *) &yuyv) + 2, sizeof (short));
                else
-                   memcpy (dest, (void *)&yuyv, sizeof(short));
+                       memcpy (dest, (void *) &yuyv, sizeof (short));
 
-               dest ++ ;
+               dest++;
        }
 
 #ifdef ENABLE_ASCII_BANNERS
-       printlogo_yuyv (yuyv_image->data, yuyv_image->width, yuyv_image->height);
+       printlogo_yuyv (yuyv_image->data, yuyv_image->width,
+                       yuyv_image->height);
 #endif
-       return 0 ;
+       return 0;
 }
 
-int image_save_header (image_t *image, char *filename, char *varname)
+int image_save_header (image_t * image, char *filename, char *varname)
 {
-       FILE    *file = fopen (filename, "w");
-       char    app[256], str[256]="", def_name[64] ;
-       int     count = image->size, col=0;
-       unsigned char *dataptr = image->data ;
-       if (file==NULL)
-               return -1 ;
-
-/*  Author information */
-       fprintf(file, "/*\n * Generated by EasyLogo, (C) 2000 by Paolo Scaffardi\n *\n");
-       fprintf(file, " * To use this, include it and call: easylogo_plot(screen,&%s, width,x,y)\n *\n", varname);
-       fprintf(file, " * Where:\t'screen'\tis the pointer to the frame buffer\n");
-       fprintf(file, " *\t\t'width'\tis the screen width\n");
-       fprintf(file, " *\t\t'x'\t\tis the horizontal position\n");
-       fprintf(file, " *\t\t'y'\t\tis the vertical position\n */\n\n");
-
-/*     Headers */
-       fprintf(file, "#include <video_easylogo.h>\n\n");
-/*     Macros */
-       strcpy(def_name, varname);
+       FILE *file = fopen (filename, "w");
+       char app[256], str[256] = "", def_name[64];
+       int count = image->size, col = 0;
+       unsigned char *dataptr = image->data;
+
+       if (file == NULL)
+               return -1;
+
+       /*  Author information */
+       fprintf (file,
+                "/*\n * Generated by EasyLogo, (C) 2000 by Paolo Scaffardi\n *\n");
+       fprintf (file,
+                " * To use this, include it and call: easylogo_plot(screen,&%s, width,x,y)\n *\n",
+                varname);
+       fprintf (file,
+                " * Where:\t'screen'\tis the pointer to the frame buffer\n");
+       fprintf (file, " *\t\t'width'\tis the screen width\n");
+       fprintf (file, " *\t\t'x'\t\tis the horizontal position\n");
+       fprintf (file, " *\t\t'y'\t\tis the vertical position\n */\n\n");
+
+       /*      Headers */
+       fprintf (file, "#include <video_easylogo.h>\n\n");
+       /*      Macros */
+       strcpy (def_name, varname);
        StringUpperCase (def_name);
-       fprintf(file, "#define  DEF_%s_WIDTH\t\t%d\n", def_name, image->width);
-       fprintf(file, "#define  DEF_%s_HEIGHT\t\t%d\n", def_name, image->height);
-       fprintf(file, "#define  DEF_%s_PIXELS\t\t%d\n", def_name, image->pixels);
-       fprintf(file, "#define  DEF_%s_BPP\t\t%d\n", def_name, image->bpp);
-       fprintf(file, "#define  DEF_%s_PIXEL_SIZE\t%d\n", def_name, image->pixel_size);
-       fprintf(file, "#define  DEF_%s_SIZE\t\t%d\n\n", def_name, image->size);
-/*  Declaration */
-       fprintf(file, "unsigned char DEF_%s_DATA[DEF_%s_SIZE] = {\n", def_name, def_name);
-
-/*     Data */
-       while(count)
-               switch (col){
-                       case 0:
-                               sprintf(str, " 0x%02x", *dataptr++);
-                               col++;
-                               count-- ;
-                               break;
-
-                       case 16:
-                               fprintf(file, "%s", str);
-                               if (count > 0)
-                                   fprintf(file,",");
-                               fprintf(file, "\n");
-
-                               col = 0 ;
-                               break;
-
-                       default:
-                               strcpy(app, str);
-                               sprintf(str, "%s, 0x%02x", app, *dataptr++);
-                               col++ ;
-                               count-- ;
-                               break;
+       fprintf (file, "#define DEF_%s_WIDTH\t\t%d\n", def_name,
+                image->width);
+       fprintf (file, "#define DEF_%s_HEIGHT\t\t%d\n", def_name,
+                image->height);
+       fprintf (file, "#define DEF_%s_PIXELS\t\t%d\n", def_name,
+                image->pixels);
+       fprintf (file, "#define DEF_%s_BPP\t\t%d\n", def_name, image->bpp);
+       fprintf (file, "#define DEF_%s_PIXEL_SIZE\t%d\n", def_name,
+                image->pixel_size);
+       fprintf (file, "#define DEF_%s_SIZE\t\t%d\n\n", def_name,
+                image->size);
+       /*  Declaration */
+       fprintf (file, "unsigned char DEF_%s_DATA[DEF_%s_SIZE] = {\n",
+                def_name, def_name);
+
+       /*      Data */
+       while (count)
+               switch (col) {
+               case 0:
+                       sprintf (str, " 0x%02x", *dataptr++);
+                       col++;
+                       count--;
+                       break;
+
+               case 16:
+                       fprintf (file, "%s", str);
+                       if (count > 0)
+                               fprintf (file, ",");
+                       fprintf (file, "\n");
+
+                       col = 0;
+                       break;
+
+               default:
+                       strcpy (app, str);
+                       sprintf (str, "%s, 0x%02x", app, *dataptr++);
+                       col++;
+                       count--;
+                       break;
                }
 
        if (col)
-               fprintf(file, "%s\n", str);
-
-/*     End of declaration */
-       fprintf(file, "};\n\n");
-/*     Variable */
-       fprintf(file, "fastimage_t %s = {\n", varname);
-       fprintf(file, "         DEF_%s_DATA,\n", def_name);
-       fprintf(file, "         DEF_%s_WIDTH,\n", def_name);
-       fprintf(file, "         DEF_%s_HEIGHT,\n", def_name);
-       fprintf(file, "         DEF_%s_BPP,\n", def_name);
-       fprintf(file, "         DEF_%s_PIXEL_SIZE,\n", def_name);
-       fprintf(file, "         DEF_%s_SIZE\n};\n", def_name);
+               fprintf (file, "%s\n", str);
+
+       /*      End of declaration */
+       fprintf (file, "};\n\n");
+       /*      Variable */
+       fprintf (file, "fastimage_t %s = {\n", varname);
+       fprintf (file, "                DEF_%s_DATA,\n", def_name);
+       fprintf (file, "                DEF_%s_WIDTH,\n", def_name);
+       fprintf (file, "                DEF_%s_HEIGHT,\n", def_name);
+       fprintf (file, "                DEF_%s_BPP,\n", def_name);
+       fprintf (file, "                DEF_%s_PIXEL_SIZE,\n", def_name);
+       fprintf (file, "                DEF_%s_SIZE\n};\n", def_name);
 
        fclose (file);
 
-       return 0 ;
+       return 0;
 }
 
 #define DEF_FILELEN    256
 
+static void usage (int exit_status)
+{
+       puts (
+               "EasyLogo 1.0 (C) 2000 by Paolo Scaffardi\n"
+               "\n"
+               "Syntax:        easylogo [options] inputfile [outputvar [outputfile]]\n"
+               "\n"
+               "Options:\n"
+               "  -r     Output RGB instead of YUYV\n"
+               "  -h     Help output\n"
+               "\n"
+               "Where: 'inputfile'   is the TGA image to load\n"
+               "       'outputvar'   is the variable name to create\n"
+               "       'outputfile'  is the output header file (default is 'inputfile.h')"
+       );
+       exit (exit_status);
+}
+
 int main (int argc, char *argv[])
 {
-    char
-       inputfile[DEF_FILELEN],
-       outputfile[DEF_FILELEN],
-       varname[DEF_FILELEN];
-
-    image_t            rgb_logo, yuyv_logo ;
-
-    switch (argc){
-    case 2:
-    case 3:
-    case 4:
-       strcpy (inputfile,      argv[1]);
-
-       if (argc > 2)
-           strcpy (varname,    argv[2]);
-       else
-       {
-           int pos = strchr(inputfile, '.');
-
-           if (pos >= 0)
-           {
-               strncpy (varname, inputfile, pos);
-               varname[pos] = 0 ;
-           }
+       int c;
+       bool use_rgb = false;
+       char inputfile[DEF_FILELEN],
+               outputfile[DEF_FILELEN], varname[DEF_FILELEN];
+
+       image_t rgb_logo, yuyv_logo;
+
+       while ((c = getopt(argc, argv, "hr")) > 0) {
+               switch (c) {
+               case 'h':
+                       usage (0);
+                       break;
+               case 'r':
+                       use_rgb = true;
+                       puts ("Using 24-bit RGB Output Fromat");
+                       break;
+               default:
+                       usage (1);
+                       break;
+               }
        }
 
-       if (argc > 3)
-           strcpy (outputfile, argv[3]);
-       else
-       {
-           int pos = strchr (varname, '.');
-
-           if (pos > 0)
-           {
-               char app[DEF_FILELEN] ;
-
-               strncpy(app, varname, pos);
-               sprintf(outputfile, "%s.h", app);
-           }
+       c = argc - optind;
+       if (c > 4 || c < 1)
+               usage (1);
+
+       strcpy (inputfile, argv[optind]);
+
+       if (c > 1)
+               strcpy (varname, argv[optind + 1]);
+       else {
+               /* transform "input.tga" to just "input" */
+               char *dot;
+               strcpy (varname, inputfile);
+               dot = strchr (varname, '.');
+               if (dot)
+                       *dot = '\0';
        }
-       break;
-
-    default:
-       printf("EasyLogo 1.0 (C) 2000 by Paolo Scaffardi\n\n");
 
-       printf("Syntax: easylogo inputfile [outputvar {outputfile}] \n");
-       printf("\n");
-       printf("Where:  'inputfile'     is the TGA image to load\n");
-       printf("        'outputvar'     is the variable name to create\n");
-       printf("        'outputfile'    is the output header file (default is 'inputfile.h')\n");
+       if (c > 2)
+               strcpy (outputfile, argv[optind + 2]);
+       else {
+               /* just append ".h" to input file name */
+               strcpy (outputfile, inputfile);
+               strcat (outputfile, ".h");
+       }
 
-       return -1 ;
-    }
+       /* Make sure the output is sent as soon as we printf() */
+       setbuf(stdout, NULL);
 
-    printf("Doing '%s' (%s) from '%s'...",
-       outputfile, varname, inputfile);
+       printf ("Doing '%s' (%s) from '%s'...",
+               outputfile, varname, inputfile);
 
-/* Import TGA logo */
+       /* Import TGA logo */
 
-    printf("L");
-    if (image_load_tga (&rgb_logo, inputfile)<0)
-    {
-       printf("input file not found!\n");
-       exit(1);
-    }
+       printf ("L");
+       if (image_load_tga (&rgb_logo, inputfile) < 0) {
+               printf ("input file not found!\n");
+               exit (1);
+       }
 
-/* Convert it to YUYV format */
+       /* Convert it to YUYV format if wanted */
 
-    printf("C");
-    image_rgb_to_yuyv (&rgb_logo, &yuyv_logo) ;
+       if (!use_rgb) {
+               printf ("C");
+               image_rgb_to_yuyv (&rgb_logo, &yuyv_logo);
+       }
 
-/* Save it into a header format */
+       /* Save it into a header format */
 
-    printf("S");
-    image_save_header (&yuyv_logo, outputfile, varname) ;
+       printf ("S");
+       image_save_header (use_rgb ? &rgb_logo : &yuyv_logo, outputfile, varname);
 
-/* Free original image and copy */
+       /* Free original image and copy */
 
-    image_free (&rgb_logo);
-    image_free (&yuyv_logo);
+       image_free (&rgb_logo);
+       if (!use_rgb)
+               image_free (&yuyv_logo);
 
-    printf("\n");
+       printf ("\n");
 
-    return 0 ;
+       return 0;
 }