Clean up the c stuff and switch to simple bash + add example

1 files changed, 56 insertions, 42 deletions

diff --git a/setup.sql b/setup.sql
index 164e63d..254beaa 100644
--- a/setup.sql
+++ b/setup.sql
@@ -1,45 +1,59 @@
+PRAGMA foreign_keys = ON;
+PRAGMA temp_store = 2;
+
+CREATE TABLE images (
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  width INTEGER NOT NULL,
+  height INTEGER NOT NULL
+);
+
 CREATE TABLE pixels (
-  x INTEGER,
-  y INTEGER,
-  r INTEGER,
-  g INTEGER,
-  b INTEGER,
-  UNIQUE(x, y)
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  image_id INTEGER NOT NULL,
+  x INTEGER NOT NULL,
+  y INTEGER NOT NULL,
+  r INTEGER NOT NULL CHECK(r >= 0 AND r <= 255),
+  g INTEGER NOT NULL CHECK(g >= 0 AND g <= 255),
+  b INTEGER NOT NULL CHECK(b >= 0 AND b <= 255),
+  FOREIGN KEY(image_id) REFERENCES images(id),
+  UNIQUE(image_id, x, y)
 );
 
-INSERT INTO pixels (x, y, r, g, b) VALUES (1, 1, 0, 255, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (2, 1, 0, 255, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (3, 1, 0, 255, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (4, 1, 0, 255, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (5, 1, 0, 255, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (6, 1, 0, 255, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (1, 2, 0, 255, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (2, 2, 0, 255, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (3, 2, 0, 255, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (4, 2, 255, 0, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (5, 2, 255, 0, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (6, 2, 255, 0, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (1, 3, 255, 0, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (2, 3, 255, 0, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (3, 3, 255, 0, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (4, 3, 255, 0, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (5, 3, 255, 0, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (6, 3, 255, 0, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (1, 4, 255, 0, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (2, 4, 255, 0, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (3, 4, 255, 0, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (4, 4, 255, 0, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (5, 4, 255, 0, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (6, 4, 255, 0, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (1, 5, 255, 0, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (2, 5, 255, 0, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (3, 5, 255, 0, 0);
-INSERT INTO pixels (x, y, r, g, b) VALUES (4, 5, 0, 0, 255);
-INSERT INTO pixels (x, y, r, g, b) VALUES (5, 5, 0, 0, 255);
-INSERT INTO pixels (x, y, r, g, b) VALUES (6, 5, 0, 0, 255);
-INSERT INTO pixels (x, y, r, g, b) VALUES (1, 6, 0, 0, 255);
-INSERT INTO pixels (x, y, r, g, b) VALUES (2, 6, 0, 0, 255);
-INSERT INTO pixels (x, y, r, g, b) VALUES (3, 6, 0, 0, 255);
-INSERT INTO pixels (x, y, r, g, b) VALUES (4, 6, 0, 0, 255);
-INSERT INTO pixels (x, y, r, g, b) VALUES (5, 6, 0, 0, 255);
-INSERT INTO pixels (x, y, r, g, b) VALUES (6, 6, 0, 0, 255);
+INSERT INTO images (id, width, height) VALUES (1, 6, 6);
+
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 1, 1, 0, 255, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 2, 1, 0, 255, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 3, 1, 0, 255, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 4, 1, 0, 255, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 5, 1, 0, 255, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 6, 1, 0, 255, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 1, 2, 0, 255, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 2, 2, 0, 255, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 3, 2, 0, 255, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 4, 2, 255, 0, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 5, 2, 255, 0, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 6, 2, 255, 0, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 1, 3, 255, 0, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 2, 3, 255, 0, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 3, 3, 255, 0, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 4, 3, 255, 0, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 5, 3, 255, 0, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 6, 3, 255, 0, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 1, 4, 255, 0, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 2, 4, 255, 0, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 3, 4, 255, 0, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 4, 4, 255, 0, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 5, 4, 255, 0, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 6, 4, 255, 0, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 1, 5, 255, 0, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 2, 5, 255, 0, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 3, 5, 255, 0, 0);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 4, 5, 0, 0, 255);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 5, 5, 0, 0, 255);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 6, 5, 0, 0, 255);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 1, 6, 0, 0, 255);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 2, 6, 0, 0, 255);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 3, 6, 0, 0, 255);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 4, 6, 0, 0, 255);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 5, 6, 0, 0, 255);
+INSERT INTO pixels (image_id, x, y, r, g, b) VALUES (1, 6, 6, 0, 0, 255);