u-boot/tools/easylogo/easylogo.c
2006-09-01 19:44:05 +02:00

422 lines
9 KiB
C

/*
** Easylogo TGA->header converter
** ==============================
** (C) 2000 by Paolo Scaffardi (arsenio@tin.it)
** AIRVENT SAM s.p.a - RIMINI(ITALY)
**
** This is still under construction!
*/
#include <stdio.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;
} tga_header_t;
typedef struct {
unsigned char r,g,b ;
} rgb_t ;
typedef struct {
unsigned char b,g,r ;
} bgr_t ;
typedef struct {
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 StringUpperCase (char *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++ ;
}
}
void pixel_rgb_to_yuyv (rgb_t *rgb_pixel, yuyv_t *yuyv_pixel)
{
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 ;
/* 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 ;
}
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");
}
}
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 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);
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 ;
}
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 ;
}
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 ;
}
/* 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;
}
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);
#endif
fclose (file);
return 0;
}
int image_free (image_t *image)
{
if(image->data != NULL)
free(image->data);
if(image->palette != NULL)
free(image->palette);
return 0;
}
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)
{
pixel_rgb_to_yuyv (rgb_ptr++, &yuyv);
if ((count & 1)==0) /* Was == 0 */
memcpy (dest, ((void *)&yuyv) + 2, sizeof(short));
else
memcpy (dest, (void *)&yuyv, sizeof(short));
dest ++ ;
}
#ifdef ENABLE_ASCII_BANNERS
printlogo_yuyv (yuyv_image->data, yuyv_image->width, yuyv_image->height);
#endif
return 0 ;
}
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);
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;
}
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);
fclose (file);
return 0 ;
}
#define DEF_FILELEN 256
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 ;
}
}
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);
}
}
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");
return -1 ;
}
printf("Doing '%s' (%s) from '%s'...",
outputfile, varname, inputfile);
/* Import TGA logo */
printf("L");
if (image_load_tga (&rgb_logo, inputfile)<0)
{
printf("input file not found!\n");
exit(1);
}
/* Convert it to YUYV format */
printf("C");
image_rgb_to_yuyv (&rgb_logo, &yuyv_logo) ;
/* Save it into a header format */
printf("S");
image_save_header (&yuyv_logo, outputfile, varname) ;
/* Free original image and copy */
image_free (&rgb_logo);
image_free (&yuyv_logo);
printf("\n");
return 0 ;
}