/*-----------------------------------------------------------------------------
* Write the rle image file header.
*/
static void
write_rle_header()
{
hdr.xmin = 0;
hdr.xmax = width-1;
hdr.ymin = 0;
hdr.ymax = height-1;
hdr.background = 0;
switch (format) {
case PBM_FORMAT:
case RPBM_FORMAT:
case PGM_FORMAT:
case RPGM_FORMAT:
hdr.ncolors = 1;
RLE_SET_BIT(hdr, RLE_RED);
break;
case PPM_FORMAT:
case RPPM_FORMAT:
hdr.ncolors = 3;
RLE_SET_BIT(hdr, RLE_RED);
RLE_SET_BIT(hdr, RLE_GREEN);
RLE_SET_BIT(hdr, RLE_BLUE);
break;
}
if (do_alpha) {
hdr.alpha = 1;
RLE_SET_BIT(hdr, RLE_ALPHA);
}
rle_put_setup(&hdr);
}
/******************************************************************************
* The real dumping routine. *
******************************************************************************/
static void DumpScreen2Rle(GifRowType *ScreenBuffer,
int ScreenWidth, int ScreenHeight)
{
int i, j;
char Comment[80];
rle_pixel *rows[4];
GifRowType GifRow;
static GifColorType
*ColorMapEntry;
if (AlphaFlag) RLE_SET_BIT(rle_dflt_hdr, RLE_ALPHA);
rle_dflt_hdr.alpha = AlphaFlag != 0;
rle_dflt_hdr.rle_file = stdout;
rle_dflt_hdr.xmin = 0;
rle_dflt_hdr.ymin = 0;
rle_dflt_hdr.xmax = ScreenWidth - 1;
rle_dflt_hdr.ymax = ScreenHeight - 1;
sprintf(Comment, "origin=GIF format, %d colors.", ColorMapSize);
rle_putcom(Comment, &rle_dflt_hdr);
rle_put_setup(&rle_dflt_hdr);
for (i = 0; i < 4; i++)
if ((rows[i] = (rle_pixel *) malloc(sizeof(rle_pixel) * ScreenWidth))
== NULL)
GIF_EXIT("Failed to allocated memory required, aborted.");
if (AlphaFlag) {
/* Initial the alpha channel to full coverage: */
for (i = 0; i < ScreenWidth; i++) rows[0][i] = 255;
}
for (i = 0; i < ScreenHeight; i++) {
/* Flip the image vertically as rle files start at the bollom... */
GifRow = ScreenBuffer[ScreenHeight - i - 1];
GifQprintf("\b\b\b\b%-4d", ScreenHeight - i);
for (j = 0; j < ScreenWidth; j++) {
ColorMapEntry = &ColorMap[GifRow[j]];
rows[1][j] = ColorMapEntry->Red;
rows[2][j] = ColorMapEntry->Green;
rows[3][j] = ColorMapEntry->Blue;
}
rle_putrow( &rows[1], ScreenWidth, &rle_dflt_hdr );
}
rle_puteof( &rle_dflt_hdr );
}
finish_output_rle (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo)
{
rle_dest_ptr dest = (rle_dest_ptr) dinfo;
rle_hdr header; /* Output file information */
rle_pixel **rle_row, *red, *green, *blue;
JSAMPROW output_row;
char cmapcomment[80];
int row, col;
int ci;
#ifdef PROGRESS_REPORT
cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress;
#endif
/* Initialize the header info */
header = *rle_hdr_init(NULL);
header.rle_file = dest->pub.output_file;
header.xmin = 0;
header.xmax = cinfo->output_width - 1;
header.ymin = 0;
header.ymax = cinfo->output_height - 1;
header.alpha = 0;
header.ncolors = cinfo->output_components;
for (ci = 0; ci < cinfo->output_components; ci++) {
RLE_SET_BIT(header, ci);
}
if (cinfo->quantize_colors) {
header.ncmap = cinfo->out_color_components;
header.cmaplen = CMAPBITS;
header.cmap = dest->colormap;
/* Add a comment to the output image with the true colormap length. */
sprintf(cmapcomment, "color_map_length=%d", cinfo->actual_number_of_colors);
rle_putcom(cmapcomment, &header);
}
/* Emit the RLE header and color map (if any) */
rle_put_setup(&header);
/* Now output the RLE data from our virtual array.
* We assume here that rle_pixel is represented the same as JSAMPLE.
*/
#ifdef PROGRESS_REPORT
if (progress != NULL) {
progress->pub.pass_limit = cinfo->output_height;
progress->pub.pass_counter = 0;
(*progress->pub.progress_monitor) ((j_common_ptr) cinfo);
}
#endif
if (cinfo->output_components == 1) {
for (row = cinfo->output_height-1; row >= 0; row--) {
rle_row = (rle_pixel **) (*cinfo->mem->access_virt_sarray)
((j_common_ptr) cinfo, dest->image,
(JDIMENSION) row, (JDIMENSION) 1, FALSE);
rle_putrow(rle_row, (int) cinfo->output_width, &header);
#ifdef PROGRESS_REPORT
if (progress != NULL) {
progress->pub.pass_counter++;
(*progress->pub.progress_monitor) ((j_common_ptr) cinfo);
}
#endif
}
} else {
for (row = cinfo->output_height-1; row >= 0; row--) {
rle_row = (rle_pixel **) dest->rle_row;
output_row = * (*cinfo->mem->access_virt_sarray)
((j_common_ptr) cinfo, dest->image,
(JDIMENSION) row, (JDIMENSION) 1, FALSE);
red = rle_row[0];
green = rle_row[1];
blue = rle_row[2];
for (col = cinfo->output_width; col > 0; col--) {
*red++ = GETJSAMPLE(*output_row++);
*green++ = GETJSAMPLE(*output_row++);
*blue++ = GETJSAMPLE(*output_row++);
}
rle_putrow(rle_row, (int) cinfo->output_width, &header);
#ifdef PROGRESS_REPORT
if (progress != NULL) {
progress->pub.pass_counter++;
(*progress->pub.progress_monitor) ((j_common_ptr) cinfo);
}
#endif
}
}
#ifdef PROGRESS_REPORT
if (progress != NULL)
progress->completed_extra_passes++;
#endif
/* Emit file trailer */
rle_puteof(&header);
fflush(dest->pub.output_file);
if (ferror(dest->pub.output_file))
ERREXIT(cinfo, JERR_FILE_WRITE);
}
and the .rle file is written to stdout\n";
int
main(int argc, char **argv)
{
unsigned char *scan_buf;
size_t y;
infp = stdin;
outrle.rle_file = stdout;
if (!get_args(argc, argv, &outrle, &infp, &infile, (int **)&background, &file_width, &file_height)) {
(void)fputs(usage, stderr);
bu_exit (1, NULL);
}
scan_buf = (unsigned char *)malloc(sizeof(unsigned char) * file_width);
outrle.ncolors = 1;
RLE_SET_BIT(outrle, RLE_RED);
outrle.background = 2; /* use background */
outrle.bg_color = background;
outrle.alpha = 0; /* no alpha channel */
outrle.ncmap = 0; /* no color map */
outrle.cmaplen = 0;
outrle.cmap = (rle_map *)0;
outrle.xmin = outrle.ymin = 0;
outrle.xmax = file_width-1;
outrle.ymax = file_height-1;
outrle.comments = (const char **)0;
/* Add comments to the header file, since we have one */
snprintf(comment, 128, "converted_from=%s", infile);
rle_putcom(strdup(comment), &outrle);
now = time(0);
sprintf(comment, "converted_date=%24.24s", ctime(&now));
rle_putcom(strdup(comment), &outrle);
if ((who = getenv("USER")) != (char *)0) {
snprintf(comment, 128, "converted_by=%s", who);
rle_putcom(strdup(comment), &outrle);
} else {
if ((who = getenv("LOGNAME")) != (char *)0) {
snprintf(comment, 128, "converted_by=%s", who);
rle_putcom(strdup(comment), &outrle);
}
}
#if HAVE_GETHOSTNAME
gethostname(host, sizeof(host));
snprintf(comment, 128, "converted_host=%s", host);
rle_putcom(strdup(comment), &outrle);
#endif
rle_put_setup(&outrle);
rle_row_alloc(&outrle, &rows);
/* Read image a scanline at a time, and encode it */
for (y = 0; y < file_height; y++) {
if (fread((char *)scan_buf, sizeof(unsigned char), (size_t)file_width, infp) != file_width) {
(void) fprintf(stderr,
"bw-rle: read of %lu pixels on line %lu failed!\n",
(unsigned long)file_width, (unsigned long)y);
bu_exit (1, NULL);
}
/* Grumble, convert to Utah layout */
{
unsigned char *pp = scan_buf;
rle_pixel *rp = rows[0];
size_t i;
for (i=0; i<file_width; i++) {
*rp++ = *pp++;
}
}
rle_putrow(rows, file_width, &outrle);
}
rle_puteof(&outrle);
fclose(infp);
fclose(outrle.rle_file);
return 0;
}
int
main(int argc, char **argv)
{
FBIO *fbp;
unsigned char *scan_buf;
int y;
int cm_save_needed;
outrle.rle_file = stdout;
if (!get_args(argc, argv)) {
(void)fputs(usage, stderr);
bu_exit(1, NULL);
}
/* If screen size = default & file size is given, track file size */
if (screen_width == 0 && file_width > 0)
screen_width = file_width;
if (screen_height == 0 && file_height > 0)
screen_height = file_height;
if ((fbp = fb_open(framebuffer, screen_width, screen_height)) == FBIO_NULL)
bu_exit(12, NULL);
/* Honor original screen size desires, if set, unless they shrank */
if (screen_width == 0 || fb_getwidth(fbp) < screen_width)
screen_width = fb_getwidth(fbp);
if (screen_height == 0 || fb_getheight(fbp) < screen_height)
screen_height = fb_getheight(fbp);
/* If not specified, output file size tracks screen size */
if (file_width == 0)
file_width = screen_width;
if (file_height == 0)
file_height = screen_height;
/* Clip below and to left of (0, 0) */
if (screen_xoff < 0) {
file_width += screen_xoff;
screen_xoff = 0;
}
if (screen_yoff < 0) {
file_height += screen_yoff;
screen_yoff = 0;
}
/* Clip up and to the right */
if (screen_xoff + file_width > screen_width)
file_width = screen_width - screen_xoff;
if (screen_yoff + file_height > screen_height)
file_height = screen_height - screen_yoff;
if (file_width <= 0 || file_height <= 0) {
fprintf(stderr,
"fb-rle: Error: image rectangle entirely off screen\n");
bu_exit(1, NULL);
}
/* Read color map, see if it is linear */
cm_save_needed = 1;
if (fb_rmap(fbp, &cmap) == -1)
cm_save_needed = 0;
if (cm_save_needed && fb_is_linear_cmap(&cmap))
cm_save_needed = 0;
if (crunch && (cm_save_needed == 0))
crunch = 0;
/* Convert to Utah format */
if (cm_save_needed) for (y=0; y<256; y++) {
rlemap[y+0*256] = cmap.cm_red[y];
rlemap[y+1*256] = cmap.cm_green[y];
rlemap[y+2*256] = cmap.cm_blue[y];
}
scan_buf = (unsigned char *)malloc(sizeof(RGBpixel) * screen_width);
/* Build RLE header */
outrle.ncolors = 3;
RLE_SET_BIT(outrle, RLE_RED);
RLE_SET_BIT(outrle, RLE_GREEN);
RLE_SET_BIT(outrle, RLE_BLUE);
outrle.background = 2; /* use background */
outrle.bg_color = background;
outrle.alpha = 0; /* no alpha channel */
if (cm_save_needed && !crunch) {
outrle.ncmap = 3;
outrle.cmaplen = 8; /* 1<<8 = 256 */
outrle.cmap = rlemap;
} else {
outrle.ncmap = 0; /* no color map */
outrle.cmaplen = 0;
outrle.cmap = (rle_map *)0;
}
outrle.xmin = screen_xoff;
outrle.ymin = screen_yoff;
outrle.xmax = screen_xoff + file_width - 1;
outrle.ymax = screen_yoff + file_height - 1;
outrle.comments = (const char **)0;
/* Add comments to the header file, since we have one */
if (framebuffer == (char *)0)
framebuffer = fbp->if_name;
snprintf(comment, COMMENT_SIZE, "encoded_from=%s", framebuffer);
rle_putcom(bu_strdup(comment), &outrle);
now = time(0);
snprintf(comment, COMMENT_SIZE, "encoded_date=%24.24s", ctime(&now));
rle_putcom(bu_strdup(comment), &outrle);
if ((who = getenv("USER")) != (char *)0) {
snprintf(comment, COMMENT_SIZE, "encoded_by=%s", who);
rle_putcom(bu_strdup(comment), &outrle);
}
# if HAVE_GETHOSTNAME
gethostname(host, sizeof(host));
snprintf(comment, COMMENT_SIZE, "encoded_host=%s", host);
rle_putcom(bu_strdup(comment), &outrle);
# endif
rle_put_setup(&outrle);
rle_row_alloc(&outrle, &rows);
/* Read the image a scanline at a time, and encode it */
for (y = 0; y < file_height; y++) {
if (fb_read(fbp, screen_xoff, y+screen_yoff, scan_buf,
file_width) == -1) {
(void) fprintf(stderr,
"fb-rle: read of %d pixels on line %d failed!\n",
file_width, y+screen_yoff);
bu_exit(1, NULL);
}
if (crunch)
cmap_crunch((RGBpixel *)scan_buf, file_width, &cmap);
/* Grumble, convert to Utah layout */
{
unsigned char *pp = (unsigned char *)scan_buf;
rle_pixel *rp = rows[0];
rle_pixel *gp = rows[1];
rle_pixel *bp = rows[2];
int i;
for (i=0; i<file_width; i++) {
*rp++ = *pp++;
*gp++ = *pp++;
*bp++ = *pp++;
}
}
rle_putrow(rows, file_width, &outrle);
}
rle_puteof(&outrle);
fb_close(fbp);
fclose(outrle.rle_file);
return 0;
}