texture info handling

examples/parse.rs

@@ -1,3 +1,4 @@
+#[allow(unused_imports)]
 use std::ops::Deref;
 
 fn main() -> Result<(), vbsp::BspError> {
@@ -12,9 +13,13 @@ fn main() -> Result<(), vbsp::BspError> {
     //     }
     // }
 
-    for prop in bsp.static_props() {
-        dbg!(prop.deref());
-        dbg!(prop.model());
+    // for prop in bsp.static_props() {
+    //     dbg!(prop.deref());
+    //     dbg!(prop.model());
+    // }
+
+    for tex in bsp.textures() {
+        println!("{}", tex.name());
     }
 
     Ok(())

src/bspfile.rs

@@ -43,10 +43,10 @@ impl<'a> BspFile<'a> {
 
     pub fn lump_reader(&self, lump: LumpType) -> BspResult<LumpReader<Cursor<Cow<[u8]>>>> {
         let data = self.get_lump(lump)?;
-        Ok(LumpReader::new(data))
+        Ok(LumpReader::new(data, lump))
     }
 
-    fn get_lump(&self, lump: LumpType) -> BspResult<Cow<[u8]>> {
+    pub fn get_lump(&self, lump: LumpType) -> BspResult<Cow<[u8]>> {
         let lump = &self.directories[lump];
         let raw_data = self
             .data

src/error.rs

@@ -2,6 +2,7 @@ use crate::data::*;
 use std::num::{ParseFloatError, ParseIntError};
 use thiserror::Error;
 use zip::result::ZipError;
+use crate::bspfile::LumpType;
 
 #[non_exhaustive]
 #[derive(Debug, Error)]
@@ -16,6 +17,7 @@ pub enum BspError {
     MalformedCompressedGameLump,
     #[error("Invalid lump size, lump size {lump_size} is not a multiple of the element size {element_size}")]
     InvalidLumpSize {
+        lump: LumpType,
         element_size: usize,
         lump_size: usize,
     },

src/handle/mod.rs

@@ -119,3 +119,24 @@ impl<'a> Handle<'a, Leaf> {
             .filter_map(move |leaf_face| bsp.face(leaf_face.face as usize))
     }
 }
+
+impl<'a> Handle<'a, TextureInfo> {
+    pub fn texture_data(&self) -> Handle<'a, TextureData> {
+        Handle::new(self.bsp, &self.bsp.textures_data[self.data.texture_data_index as usize])
+    }
+    pub fn name(&self) -> &'a str {
+        self.texture_data().name()
+    }
+}
+
+impl<'a> Handle<'a, TextureData> {
+    pub fn name(&self) -> &'a str {
+        let start = self.bsp.texture_string_tables[self.name_string_table_id as usize] as usize;
+        let part = &self.bsp.texture_string_data[start..];
+        if let Some((s, _)) = part.split_once("\0") {
+            s
+        } else {
+            part
+        }
+    }
+}

src/lib.rs

@@ -159,6 +159,8 @@ pub struct Bsp {
     pub entities: Entities,
     pub textures_data: Vec<TextureData>,
     pub textures_info: Vec<TextureInfo>,
+    pub texture_string_tables: Vec<i32>,
+    pub texture_string_data: String,
     pub planes: Vec<Plane>,
     pub nodes: Vec<Node>,
     pub leaves: Leaves,
@@ -191,6 +193,12 @@ impl Bsp {
         let textures_info = bsp_file
             .lump_reader(LumpType::TextureInfo)?
             .read_vec(|r| r.read())?;
+        let texture_string_tables = bsp_file
+            .lump_reader(LumpType::TextureDataStringTable)?
+            .read_vec(|r| r.read())?;
+        let texture_string_data = String::from_utf8(bsp_file
+            .get_lump(LumpType::TextureDataStringData)?
+            .into_owned()).map_err(|e| BspError::String(StringError::NonUTF8(e.utf8_error())))?;
         let planes = bsp_file
             .lump_reader(LumpType::Planes)?
             .read_vec(|r| r.read())?;
@@ -253,6 +261,8 @@ impl Bsp {
             entities,
             textures_data,
             textures_info,
+            texture_string_tables,
+            texture_string_data,
             planes,
             nodes,
             leaves,
@@ -315,6 +325,11 @@ impl Bsp {
         self.models.iter().map(move |m| Handle::new(self, m))
     }
 
+    /// Get all models stored in the bsp
+    pub fn textures(&self) -> impl Iterator<Item = Handle<'_, TextureInfo>> {
+        self.textures_info.iter().map(move |m| Handle::new(self, m))
+    }
+
     /// Find a leaf for a specific position
     pub fn leaf_at(&self, point: Vector) -> Handle<'_, Leaf> {
         let mut current = self.root_node();
@@ -424,6 +439,22 @@ impl Bsp {
             "texture_info",
             "texture_data",
         )?;
+        self.validate_indexes(
+            self.textures_data
+                .iter()
+                .map(|texture| texture.name_string_table_id),
+            &self.texture_string_tables,
+            "textures_data",
+            "texture_string_tables",
+        )?;
+        self.validate_indexes(
+            self.texture_string_tables
+                .iter()
+                .map(|texture| *texture),
+            &self.texture_string_data.as_bytes(),
+            "texture_string_tables",
+            "texture_string_data",
+        )?;
         self.validate_indexes(
             self.nodes.iter().map(|node| node.plane_index),
             &self.planes,

src/reader.rs

@@ -1,6 +1,5 @@
 use crate::*;
 use binrw::BinReaderExt;
-// use std::any::type_name;
 use std::borrow::Cow;
 use std::fmt::Debug;
 use std::mem::size_of;
@@ -8,15 +7,17 @@ use std::mem::size_of;
 pub struct LumpReader<R> {
     inner: R,
     length: usize,
+    lump: LumpType,
 }
 
 impl<'a> LumpReader<Cursor<Cow<'a, [u8]>>> {
-    pub fn new(data: Cow<'a, [u8]>) -> Self {
+    pub fn new(data: Cow<'a, [u8]>, lump: LumpType) -> Self {
         let length = data.len();
         let reader = Cursor::new(data);
         LumpReader {
             inner: reader,
             length,
+            lump,
         }
     }
 
@@ -32,12 +33,14 @@ impl<R: BinReaderExt + Read> LumpReader<R> {
         Ok(Entities { entities })
     }
 
+    /// Read a list of items with a fixed size
     pub fn read_vec<F, T>(&mut self, mut f: F) -> BspResult<Vec<T>>
     where
         F: FnMut(&mut LumpReader<R>) -> BspResult<T>,
     {
         if self.length % size_of::<T>() != 0 {
             return Err(BspError::InvalidLumpSize {
+                lump: self.lump,
                 element_size: size_of::<T>(),
                 lump_size: self.length,
             });