New DDS decoder

Cargo.toml

@@ -40,6 +40,7 @@ byteorder-lite = "0.1.0"
 num-traits = { version = "0.2.0" }
 
 # Optional dependencies
+bcdec_rs = { version = "0.1.2", optional = true }
 color_quant = { version = "1.1", optional = true }
 dav1d = { version = "0.10.3", optional = true }
 dcv-color-primitives = { version = "0.6.1", optional = true }
@@ -70,7 +71,7 @@ default = ["rayon", "default-formats"]
 default-formats = ["avif", "bmp", "dds", "exr", "ff", "gif", "hdr", "ico", "jpeg", "png", "pnm", "qoi", "tga", "tiff", "webp"]
 avif = ["dep:ravif", "dep:rgb"]
 bmp = []
-dds = []
+dds = ["dep:bcdec_rs"]
 exr = ["dep:exr"]
 ff = [] # Farbfeld image format
 gif = ["dep:gif", "dep:color_quant"]

benches/decode.rs

@@ -33,6 +33,16 @@ fn load_all(c: &mut Criterion) {
             files: &["alpha_gif_a.gif", "sample_1.gif"],
             format: ImageFormat::Gif,
         },
+        BenchDef {
+            dir: &["dds", "bc"],
+            files: &["DX10 BC4_UNORM.dds", "DX10 BC4_SNORM.dds"],
+            format: ImageFormat::Dds,
+        },
+        BenchDef {
+            dir: &["dds", "uncompressed"],
+            files: &["DX10 B5G5R5A1_UNORM.dds", "DX10 B5G6R5_UNORM.dds"],
+            format: ImageFormat::Dds,
+        },
         BenchDef {
             dir: &["hdr", "images"],
             files: &["image1.hdr", "rgbr4x4.hdr"],