feat(render-core): add default UV scale and refactor UV mapping logic

- Introduced a constant `DEFAULT_UV_SCALE` for UV scaling.
- Refactored UV mapping in `build_render_mesh` to use the new constant.
- Simplified `compute_bounds` functions by extracting common logic into `compute_bounds_impl`.

test(render-core): add tests for rendering with empty and multi-node models

- Added tests to verify behavior when building render meshes from models with no slots and multiple nodes.
- Ensured UV scaling is correctly applied in tests.

feat(render-demo): add FOV argument and improve error handling

- Added a `--fov` command-line argument to set the field of view.
- Enhanced error messages for texture resolution failures.
- Updated MVP computation to use the new FOV parameter.

fix(rsli): improve error handling in LZH decompression

- Added checks to prevent out-of-bounds access in LZH decoding logic.

refactor(texm): streamline texture parsing and decoding tests

- Created a helper function `build_texm_payload` for constructing test payloads.
- Added tests for various texture formats including RGB565, RGB556, ARGB4444, and Luminance Alpha.
- Improved error handling for invalid TEXM headers and mip bounds.

1 files changed, 6 insertions, 1 deletions

diff --git a/crates/rsli/src/compress/lzh.rs b/crates/rsli/src/compress/lzh.rs
index 07dc0c5..9486c50 100644
--- a/crates/rsli/src/compress/lzh.rs
+++ b/crates/rsli/src/compress/lzh.rs
@@ -135,7 +135,12 @@ impl<'a> LzhDecoder<'a> {
         let mut node = self.son[LZH_R];
         while node < LZH_T {
             let bit = usize::from(self.bit_reader.read_bit()?);
-            node = self.son[node + bit];
+            let branch = node
+                .checked_add(bit)
+                .ok_or(Error::DecompressionFailed("lzss-huffman tree overflow"))?;
+            node = *self.son.get(branch).ok_or(Error::DecompressionFailed(
+                "lzss-huffman tree out of bounds",
+            ))?;
         }
 
         let c = node - LZH_T;