Changeset 2fe64d0 in mainline

Timestamp:

2012-08-08T09:38:47Z (12 years ago)

Author:

Vojtech Horky <vojtechhorky@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

0da6c04

Parents:

18d4484

Message:

BitHenge/GIF: use operators

File:

• uspace/dist/src/bithenge/gif/gif.bh (modified) (3 diffs)

uspace/dist/src/bithenge/gif/gif.bh

@@ -51 +51 @@
 };
 
-transform gif_color_map_from_bits_per_pixel(bits_per_pixel_minus_one) = struct {
+transform gif_color_map_from_bits_per_pixel(bits_per_pixel) = struct {
         # We need to emulate missing << operator
-        switch (bits_per_pixel_minus_one) {
-                0: { <- gif_color_map(2); };
-                1: { <- gif_color_map(4); };
-                2: { <- gif_color_map(8); };
-                3: { <- gif_color_map(16); };
-                4: { <- gif_color_map(32); };
-                5: { <- gif_color_map(64); };
-                6: { <- gif_color_map(128); };
-                7: { <- gif_color_map(256); };
+        switch (bits_per_pixel) {
+                1: { <- gif_color_map(2); };
+                2: { <- gif_color_map(4); };
+                3: { <- gif_color_map(8); };
+                4: { <- gif_color_map(16); };
+                5: { <- gif_color_map(32); };
+                6: { <- gif_color_map(64); };
+                7: { <- gif_color_map(128); };
+                8: { <- gif_color_map(256); };
         }
 };
@@ -91 +91 @@
                 .interlacing <- bit;
                 .reserved_bits <- uint_be(3);
-                .bits_per_pixel_minus_one <- uint_be(3);
+                .bits_per_pixel <- (in + 1) <- uint_be(3);
         } <- bits_be <- known_length(1);
         
         if (.use_local_color_map) {
-                .local_color_map <- gif_color_map_from_bits_per_pixel(.bits_per_pixel_minus_one);
+                .local_color_map <- gif_color_map_from_bits_per_pixel(.bits_per_pixel);
         }
         
@@ -136 +136 @@
                 .color_resolution <- uint_be(3);
                 .reserved_bit <- uint_be(1);
-                .bits_per_pixel_minus_one <- uint_be(3);
+                .bits_per_pixel <- (in + 1) <- uint_be(3);
         } <- bits_be <- known_length(1);
         .background_color_index <- uint8;
         .reserved <- uint8;
         if (.global_color_map_exists) {
-                .global_color_map <- gif_color_map_from_bits_per_pixel(.bits_per_pixel_minus_one);
+                .global_color_map <- gif_color_map_from_bits_per_pixel(.bits_per_pixel);
         }
         .blocks <- repeat {