Add swizzle_interleaved_transparent_black decl
diff --git a/internal/cgen/base/image-private.h b/internal/cgen/base/image-private.h
index 7a04138..2a4808f 100644
--- a/internal/cgen/base/image-private.h
+++ b/internal/cgen/base/image-private.h
@@ -24,6 +24,13 @@
     const uint8_t** ptr_iop_r,
     const uint8_t* io2_r);
 
+WUFFS_BASE__MAYBE_STATIC uint64_t  //
+wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black(
+    const wuffs_base__pixel_swizzler* p,
+    wuffs_base__slice_u8 dst,
+    wuffs_base__slice_u8 dst_palette,
+    uint64_t num_pixels);
+
 // ---------------- Images (Utility)
 
 #define wuffs_base__utility__make_pixel_format wuffs_base__make_pixel_format
diff --git a/internal/cgen/data/data.go b/internal/cgen/data/data.go
index f4ca3ca..3084730 100644
--- a/internal/cgen/data/data.go
+++ b/internal/cgen/data/data.go
@@ -109,7 +109,7 @@
 	""
 
 const BaseImagePrivateH = "" +
-	"// ---------------- Images\n\nWUFFS_BASE__MAYBE_STATIC uint64_t  //\nwuffs_base__pixel_swizzler__swizzle_interleaved_from_reader(\n    const wuffs_base__pixel_swizzler* p,\n    wuffs_base__slice_u8 dst,\n    wuffs_base__slice_u8 dst_palette,\n    const uint8_t** ptr_iop_r,\n    const uint8_t* io2_r);\n\n" +
+	"// ---------------- Images\n\nWUFFS_BASE__MAYBE_STATIC uint64_t  //\nwuffs_base__pixel_swizzler__swizzle_interleaved_from_reader(\n    const wuffs_base__pixel_swizzler* p,\n    wuffs_base__slice_u8 dst,\n    wuffs_base__slice_u8 dst_palette,\n    const uint8_t** ptr_iop_r,\n    const uint8_t* io2_r);\n\nWUFFS_BASE__MAYBE_STATIC uint64_t  //\nwuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black(\n    const wuffs_base__pixel_swizzler* p,\n    wuffs_base__slice_u8 dst,\n    wuffs_base__slice_u8 dst_palette,\n    uint64_t num_pixels);\n\n" +
 	"" +
 	"// ---------------- Images (Utility)\n\n#define wuffs_base__utility__make_pixel_format wuffs_base__make_pixel_format\n" +
 	""
diff --git a/release/c/wuffs-unsupported-snapshot.c b/release/c/wuffs-unsupported-snapshot.c
index 731a222..28ab222 100644
--- a/release/c/wuffs-unsupported-snapshot.c
+++ b/release/c/wuffs-unsupported-snapshot.c
@@ -9235,6 +9235,13 @@
     const uint8_t** ptr_iop_r,
     const uint8_t* io2_r);
 
+WUFFS_BASE__MAYBE_STATIC uint64_t  //
+wuffs_base__pixel_swizzler__swizzle_interleaved_transparent_black(
+    const wuffs_base__pixel_swizzler* p,
+    wuffs_base__slice_u8 dst,
+    wuffs_base__slice_u8 dst_palette,
+    uint64_t num_pixels);
+
 // ---------------- Images (Utility)
 
 #define wuffs_base__utility__make_pixel_format wuffs_base__make_pixel_format