From c853b638276600fba779d764c0cb66f2495fb18a Mon Sep 17 00:00:00 2001
From: Drew Short <warrick@sothr.com>
Date: Fri, 18 Sep 2015 22:03:47 -0500
Subject: [PATCH] Working on caching the DCT/DFT

---
 .gitignore   |  1 +
 src/cache.rs | 11 +++++++++--
 src/hash.rs  |  4 ++--
 3 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/.gitignore b/.gitignore
index 0854752..9369b2a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 # System Files
 .directory
+*.swp
 
 # Compiled files
 *.o
diff --git a/src/cache.rs b/src/cache.rs
index eaa97ce..9b15694 100644
--- a/src/cache.rs
+++ b/src/cache.rs
@@ -42,7 +42,7 @@ fn get_file_hash(path: &Path) -> Result<String, Error> {
 /**
  * Put an image buffer in the cache
  */
-pub fn put_in_cache(path: &Path, size: u32, image: &ImageBuffer<image::Luma<u8>, Vec<u8>>)  {
+pub fn put_image_in_cache(path: &Path, size: u32, image: &ImageBuffer<image::Luma<u8>, Vec<u8>>)  {
     let hash = get_file_hash(&path);
     match hash {
         Ok(sha1) => {
@@ -58,10 +58,17 @@ pub fn put_in_cache(path: &Path, size: u32, image: &ImageBuffer<image::Luma<u8>,
     }
 }
 
+/**
+ * Expects a slice of slices that represents lines in the file
+ */
+pub fn put_file_in_cache(path: &Path, size: u32, file_contents: &[&[u8]])  {
+
+}
+
 /**
  * Get an image buffer out of the cache
  */
-pub fn get_from_cache(path: &Path, size: u32) -> Option<ImageBuffer<image::Luma<u8>, Vec<u8>>> {
+pub fn get_image_from_cache(path: &Path, size: u32) -> Option<ImageBuffer<image::Luma<u8>, Vec<u8>>> {
     let hash = get_file_hash(&path);
     match hash {
         Ok(sha1) => {
diff --git a/src/hash.rs b/src/hash.rs
index ab6dea2..6d43a3b 100644
--- a/src/hash.rs
+++ b/src/hash.rs
@@ -110,7 +110,7 @@ pub fn prepare_image<'a>(path: &'a Path, hash_type: &HashType, precision: &Preci
         _ => precision.get_size()
     };
     // Check if we have the already converted image in a cache and use that if possible.
-    match cache::get_from_cache(&path, size) {
+    match cache::get_image_from_cache(&path, size) {
         Some(image) => {
             PreparedImage { orig_path: &*image_path, image: image }
         },
@@ -119,7 +119,7 @@ pub fn prepare_image<'a>(path: &'a Path, hash_type: &HashType, precision: &Preci
             let image = image::open(path).unwrap();
             let small_image = image.resize_exact(size, size, FilterType::Lanczos3);
             let grey_image = small_image.to_luma();
-            cache::put_in_cache(&path, size, &grey_image);
+            cache::put_image_in_cache(&path, size, &grey_image);
             PreparedImage { orig_path: &*image_path, image: grey_image }
         },
     }