u-boot/tools/easylogo/easylogo.c
Mike Frysinger edfed1d91d easylogo: clean up some more and add -r (rgb) support
Michael Hennerich added support for outputting an image in RGB format rather
than forcing YUYV all the time.  This makes obvious sense if the display you
have takes RGB input rather than YUYV.

Rather than hack in support for options, I've converted it to use getopt and
cleaned up the argument parsing in the process.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-02-22 12:07:39 +01:00

456 lines
9.9 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 <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;
} 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 {
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++;
}
}
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");
}
}
static inline unsigned short le16_to_cpu (unsigned short val)
{
union {
unsigned char pval[2];
unsigned short val;
} swapped;
swapped.val = val;
return (swapped.pval[1] << 8) + swapped.pval[0];
}
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;
}
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;
}
void image_free (image_t * image)
{
free (image->data);
free (image->palette);
}
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
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[])
{
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;
}
}
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';
}
if (c > 2)
strcpy (outputfile, argv[optind + 2]);
else {
/* just append ".h" to input file name */
strcpy (outputfile, inputfile);
strcat (outputfile, ".h");
}
/* Make sure the output is sent as soon as we printf() */
setbuf(stdout, NULL);
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 if wanted */
if (!use_rgb) {
printf ("C");
image_rgb_to_yuyv (&rgb_logo, &yuyv_logo);
}
/* Save it into a header format */
printf ("S");
image_save_header (use_rgb ? &rgb_logo : &yuyv_logo, outputfile, varname);
/* Free original image and copy */
image_free (&rgb_logo);
if (!use_rgb)
image_free (&yuyv_logo);
printf ("\n");
return 0;
}