Update notes and metadata for 0.5.0

Fix #69

.travis.yml

@@ -4,8 +4,3 @@ rust:
     - stable
     - beta
     - nightly
-
-script:
-  - if [[ "$TRAVIS_RUST_VERSION" == *stable* ]]; then rustup component add rustfmt; cargo fmt --version; cargo fmt -- --check || (echo "Please reformat your code with 'cargo fmt' (version $(cargo fmt --version))"; false); fi
-  - cargo build -v
-  - cargo test -v

CHANGES.md

@@ -1,3 +1,12 @@
+# Version 0.5.0
+
+* Added support for 32-bit and 64-bit decoded values.
+* Added CMYK(16|32|64) color type support.
+* Check many internal integer conversions to increase stability. This should
+  only lead to images being reported as faulty that would previously silently
+  break platform limits. If there are any false positives, please report them.
+* Remove an erroneous check of decoded length in lzw compressed images.
+
 # Version 0.4.0
 
 * Several enumerations are now non_exhaustive for future extensions.

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "tiff"
-version = "0.4.0"
+version = "0.5.0"
 authors = [
     "ccgn",
     "bvssvni <bvssvni@gmail.com>",

src/decoder/mod.rs

@@ -584,7 +584,7 @@ impl<R: Read + Seek> Decoder<R> {
                 let (bytes, reader) = LZWReader::new(
                     &mut self.reader,
                     usize::try_from(length)?,
-                    max_uncompressed_length
+                    max_uncompressed_length * buffer.byte_len()
                 )?;
                 (bytes, Box::new(reader))
             }
@@ -744,7 +744,7 @@ impl<R: Read + Seek> Decoder<R> {
 
         let buffer_size = usize::try_from(self.width)? * strip_height * self.bits_per_sample.len();
 
-        if buffer.len() < buffer_size || usize::try_from(byte_count)? / buffer.byte_len() > buffer_size {
+        if buffer.len() < buffer_size {
             return Err(TiffError::FormatError(
                 TiffFormatError::InconsistentSizesEncountered,
             ));

tests/decode_images.rs

@@ -149,6 +149,12 @@ fn test_decode_data() {
     }
 }
 
+#[test]
+fn issue_69() {
+    test_image_sum_u16("issue_69_lzw.tiff", ColorType::Gray(16), 1015486);
+    test_image_sum_u16("issue_69_packbits.tiff", ColorType::Gray(16), 1015486);
+}
+
 // TODO: GrayA support
 //#[test]
 //fn test_gray_alpha_u8()