static void do_read_bitmap(deark *c, lctx *d, de_int64 pos)
{
de_int64 ver_num;
dbuf *unc_pixels = NULL;
ver_num = de_getui32be(pos);
de_dbg(c, "version number: %u\n", (unsigned int)ver_num);
if(ver_num!=0 && ver_num!=2 && ver_num!=3) {
de_warn(c, "Unrecognized version number: %u\n", (unsigned int)ver_num);
}
pos += 512;
unc_pixels = dbuf_create_membuf(c, MACPAINT_IMAGE_BYTES, 1);
de_fmtutil_uncompress_packbits(c->infile, pos, c->infile->len - pos, unc_pixels, NULL);
if(unc_pixels->len < MACPAINT_IMAGE_BYTES) {
de_warn(c, "Image decompressed to %d bytes, expected %d.\n",
(int)unc_pixels->len, (int)MACPAINT_IMAGE_BYTES);
}
de_convert_and_write_image_bilevel(unc_pixels, 0,
MACPAINT_WIDTH, MACPAINT_HEIGHT, MACPAINT_WIDTH/8,
DE_CVTF_WHITEISZERO, NULL, 0);
dbuf_close(unc_pixels);
}
static int do_image_pbm_binary(deark *c, lctx *d, struct page_ctx *pg, de_int64 pos1)
{
de_int64 rowspan;
rowspan = (pg->width+7)/8;
pg->image_data_len = rowspan * pg->height;
de_convert_and_write_image_bilevel(c->infile, pos1, pg->width, pg->height,
rowspan, DE_CVTF_WHITEISZERO, NULL, 0);
return 1;
}
// TODO: Consolidate this withe do_static_bitmap()?
static void do_picture_bitmap(deark *c, lctx *d, struct para_info *pinfo)
{
i64 pos1 = pinfo->thisparapos;
i64 pos;
i64 cbHeader, cbSize;
i64 bmWidth, bmHeight;
i64 bmPlanes;
i64 bmBitsPixel;
i64 rowspan;
pos = pos1;
pos += 16;
pos += 2;
bmWidth = de_getu16le_p(&pos); // pos1+16+2
bmHeight = de_getu16le_p(&pos); // pos1+16+4
de_dbg_dimensions(c, bmWidth, bmHeight);
rowspan = de_getu16le_p(&pos); // pos1+16+6
de_dbg(c, "bytes/row: %d", (int)rowspan);
bmPlanes = (i64)de_getbyte_p(&pos);
de_dbg(c, "planes: %d", (int)bmPlanes);
bmBitsPixel = (i64)de_getbyte_p(&pos); // pos1+16+9
de_dbg(c, "bmBitsPixel: %d", (int)bmBitsPixel);
pos += 4;
cbHeader = de_getu16le_p(&pos); // pos1+30
de_dbg(c, "cbHeader: %d", (int)cbHeader);
cbSize = de_getu32le_p(&pos); // pos1+32
de_dbg(c, "cbSize: %d", (int)cbSize);
if(bmBitsPixel!=1 || bmPlanes!=1) {
de_err(c, "This type of bitmap is not supported (bmBitsPixel=%d, planes=%d)",
(int)bmBitsPixel, (int)bmPlanes);
goto done;
}
pos = pos1 + cbHeader;
de_convert_and_write_image_bilevel(c->infile, pos, bmWidth, bmHeight, rowspan, 0, NULL, 0);
done:
;
}
static void do_card_index(deark *c, lctx *d, de_int64 cardnum, de_int64 pos)
{
de_int64 datapos;
de_int64 bitmap_len;
de_int64 w, h;
de_int64 src_rowspan;
de_int64 text_len;
de_int64 text_pos;
struct deark_bitmap *img = NULL;
de_finfo *fi_bitmap = NULL;
de_finfo *fi_text = NULL;
const char *cardtype;
de_ucstring *name = NULL;
int saved_indent_level;
de_dbg_indent_save(c, &saved_indent_level);
datapos = de_getui32le(pos+6);
de_dbg(c, "card #%d at %d, dpos=%d\n", (int)cardnum, (int)pos, (int)datapos);
de_dbg_indent(c, 1);
if(datapos>=c->infile->len) goto done;
bitmap_len = de_getui16le(datapos);
de_dbg(c, "bitmap length: %d\n", (int)bitmap_len);
if(bitmap_len==0) {
text_len = de_getui16le(datapos+2);
text_pos = datapos+4;
}
else {
text_len = de_getui16le(datapos + bitmap_len + 10);
text_pos = datapos + bitmap_len + 10;
}
de_dbg(c, "text length: %d\n", (int)text_len);
if(bitmap_len==0 && text_len==0) {
cardtype = "empty";
}
else if(bitmap_len==0) {
cardtype = "text-only";
}
else if(text_len==0) {
cardtype = "graphics-only";
}
else {
cardtype = "graphics+text";
}
de_dbg(c, "card type: %s\n", cardtype);
if(bitmap_len==0 && text_len==0) {
goto done;
}
name = ucstring_create(c);
dbuf_read_to_ucstring(c->infile, pos+11, 40, name, DE_CONVFLAG_STOP_AT_NUL, DE_ENCODING_ASCII);
de_dbg(c, "name: \"%s\"\n", ucstring_get_printable_sz(name));
// Text
if(text_len!=0 && c->extract_level>=2) {
fi_text = de_finfo_create(c);
if(c->filenames_from_file)
de_finfo_set_name_from_ucstring(c, fi_text, name);
do_text_data(c, d, fi_text, text_pos, text_len);
}
// Bitmap
if(bitmap_len==0) goto done;
fi_bitmap = de_finfo_create(c);
if(c->filenames_from_file)
de_finfo_set_name_from_ucstring(c, fi_bitmap, name);
w = de_getui16le(datapos+2);
h = de_getui16le(datapos+4);
de_dbg(c, "bitmap dimensions: %dx%d\n", (int)w, (int)h);
img = de_bitmap_create(c, w, h, 1);
src_rowspan = ((w+15)/16)*2;
de_convert_and_write_image_bilevel(c->infile, datapos+10,
w, h, src_rowspan, 0, fi_bitmap, 0);
done:
ucstring_destroy(name);
de_bitmap_destroy(img);
de_finfo_destroy(c, fi_bitmap);
de_finfo_destroy(c, fi_text);
de_dbg_indent_restore(c, saved_indent_level);
}
