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-rw-r--r--tools/jpeginfo.c94
1 files changed, 0 insertions, 94 deletions
diff --git a/tools/jpeginfo.c b/tools/jpeginfo.c
index d3d9b59..f1e614a 100644
--- a/tools/jpeginfo.c
+++ b/tools/jpeginfo.c
@@ -25,100 +25,6 @@
#include <stdlib.h>
#include <string.h>
-// --- ICC profiles ------------------------------------------------------------
-// v2 https://www.color.org/ICC_Minor_Revision_for_Web.pdf
-// v4 https://www.color.org/specification/ICC1v43_2010-12.pdf
-
-static jv
-parse_icc_mluc(jv o, const uint8_t *tag, uint32_t tag_length)
-{
- // v4 10.13
- if (tag_length < 16)
- return add_warning(o, "invalid ICC 'mluc' structure length");
-
- uint32_t count = u32be(tag + 8);
- if (count == 0)
- return add_warning(o, "unnamed ICC profile");
-
- // There is no particularly good reason for us to iterate, take the first.
- const uint8_t *record = tag + 16 /* + i * u32be(tag + 12) */;
- uint32_t len = u32be(&record[4]);
- uint32_t off = u32be(&record[8]);
-
- if (off + len > tag_length)
- return add_warning(o, "invalid ICC 'mluc' structure record");
-
- // Blindly assume simple ASCII, ensure NUL-termination.
- char name[len], *p = name;
- for (uint32_t i = 0; i < len / 2; i++)
- *p++ = tag[off + i * 2 + 1];
- *p++ = 0;
- return jv_set(o, jv_string("ICC"),
- JV_OBJECT(jv_string("name"), jv_string(name),
- jv_string("version"), jv_number(4)));
-}
-
-static jv
-parse_icc_desc(jv o, const uint8_t *profile, size_t profile_len,
- uint32_t tag_offset, uint32_t tag_length)
-{
- const uint8_t *tag = profile + tag_offset;
- if (tag_offset + tag_length > profile_len)
- return add_warning(o, "unexpected end of ICC profile");
- if (tag_length < 4)
- return add_warning(o, "invalid ICC tag structure length");
-
- // v2 6.5.17
- uint32_t sig = u32be(tag);
- if (sig == 0x6D6C7563 /* mluc */)
- return parse_icc_mluc(o, profile + tag_offset, tag_length);
- if (sig != 0x64657363 /* desc */)
- return add_warning(o, "invalid ICC 'desc' structure signature");
- if (tag_length < 12)
- return add_warning(o, "invalid ICC 'desc' structure length");
-
- uint32_t count = u32be(tag + 8);
- if (tag_length < 12 + count)
- return add_warning(o, "invalid ICC 'desc' structure length");
-
- // Double-ensure a trailing NUL byte.
- char name[count + 1];
- memcpy(name, tag + 12, count);
- name[count] = 0;
- return jv_set(o, jv_string("ICC"),
- JV_OBJECT(jv_string("name"), jv_string(name),
- jv_string("version"), jv_number(2)));
-}
-
-static jv
-parse_icc(jv o, const uint8_t *profile, size_t profile_len)
-{
- // v2 6, v4 7
- if (profile_len < 132)
- return add_warning(o, "ICC profile too short");
- if (u32be(profile) != profile_len)
- return add_warning(o, "ICC profile size mismatch");
-
- // TODO(p): May decode more of the header fields, and validate them.
- // Need to check both v2 and v4, this is all fairly annoying.
- uint32_t count = u32be(profile + 128);
- if (132 + count * 12 > profile_len)
- return add_warning(o, "unexpected end of ICC profile");
-
- for (uint32_t i = 0; i < count; i++) {
- const uint8_t *entry = profile + 132 + i * 12;
- uint32_t sig = u32be(&entry[0]);
- uint32_t off = u32be(&entry[4]);
- uint32_t len = u32be(&entry[8]);
-
- // v2 6.4.32, v4 9.2.41
- if (sig == 0x64657363 /* desc */)
- return parse_icc_desc(o, profile, profile_len, off, len);
- }
- // The description is required, so this should be unreachable.
- return jv_set(o, jv_string("ICC"), jv_bool(true));
-}
-
// --- Multi-Picture Format ----------------------------------------------------
enum {