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easylogo: add support for 16-bit RGB565 

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Michael Hennerich 2009-12-19 08:19:09 -05:00 committed by Wolfgang Denk
parent 0f597bc2a8
commit 7293e0577f
1 changed files with 60 additions and 18 deletions
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78
tools/easylogo/easylogo.c
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@ -276,6 +276,35 @@ int image_rgb_to_yuyv (image_t * rgb_image, image_t * yuyv_image)
return 0;
}
int image_rgb888_to_rgb565(image_t *rgb888_image, image_t *rgb565_image)
{
rgb_t *rgb_ptr = (rgb_t *) rgb888_image->data;
unsigned short *dest;
int count = 0;
rgb565_image->pixel_size = 2;
rgb565_image->bpp = 16;
rgb565_image->yuyv = 0;
rgb565_image->width = rgb888_image->width;
rgb565_image->height = rgb888_image->height;
rgb565_image->pixels = rgb565_image->width * rgb565_image->height;
rgb565_image->size = rgb565_image->pixels * rgb565_image->pixel_size;
dest = (unsigned short *) (rgb565_image->data =
xmalloc(rgb565_image->size));
rgb565_image->palette = 0;
rgb565_image->palette_size = 0;
while ((count++) < rgb888_image->pixels) {
*dest++ = ((rgb_ptr->b & 0xF8) << 8) |
((rgb_ptr->g & 0xFC) << 3) |
(rgb_ptr->r >> 3);
rgb_ptr++;
}
return 0;
}
int use_gzip = 0;
int image_save_header (image_t * image, char *filename, char *varname)
@ -434,7 +463,8 @@ static void usage (int exit_status)
"Syntax: easylogo [options] inputfile [outputvar [outputfile]]\n"
"\n"
"Options:\n"
" -r Output RGB instead of YUYV\n"
" -r Output RGB888 instead of YUYV\n"
" -s Output RGB565 instead of YUYV\n"
" -g Compress with gzip\n"
" -b Preallocate space in bss for decompressing image\n"
" -h Help output\n"
@ -449,20 +479,25 @@ static void usage (int exit_status)
int main (int argc, char *argv[])
{
int c;
bool use_rgb = false;
bool use_rgb888 = false;
bool use_rgb565 = false;
char inputfile[DEF_FILELEN],
outputfile[DEF_FILELEN], varname[DEF_FILELEN];
image_t rgb_logo, yuyv_logo;
image_t rgb888_logo, rgb565_logo, yuyv_logo;
while ((c = getopt(argc, argv, "hrgb")) > 0) {
while ((c = getopt(argc, argv, "hrsgb")) > 0) {
switch (c) {
case 'h':
usage (0);
break;
case 'r':
use_rgb = true;
puts ("Using 24-bit RGB Output Fromat");
use_rgb888 = true;
puts("Using 24-bit RGB888 Output Fromat");
break;
case 's':
use_rgb565 = true;
puts("Using 16-bit RGB565 Output Fromat");
break;
case 'g':
use_gzip |= 0x1;
@ -512,28 +547,35 @@ int main (int argc, char *argv[])
/* Import TGA logo */
printf ("L");
if (image_load_tga (&rgb_logo, inputfile) < 0) {
if (image_load_tga(&rgb888_logo, inputfile) < 0) {
printf ("input file not found!\n");
exit (1);
}
/* Convert it to YUYV format if wanted */
/* Convert, save, and free the image */
if (!use_rgb) {
if (!use_rgb888 && !use_rgb565) {
printf ("C");
image_rgb_to_yuyv (&rgb_logo, &yuyv_logo);
image_rgb_to_yuyv(&rgb888_logo, &yuyv_logo);
printf("S");
image_save_header(&yuyv_logo, outputfile, varname);
image_free(&yuyv_logo);
} else if (use_rgb565) {
printf("C");
image_rgb888_to_rgb565(&rgb888_logo, &rgb565_logo);
printf("S");
image_save_header(&rgb565_logo, outputfile, varname);
image_free(&rgb565_logo);
} else {
printf("S");
image_save_header(&rgb888_logo, outputfile, varname);
}
/* 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);
image_free(&rgb888_logo);
printf ("\n");